A test apparatus and test method

Abstract

The application discloses a test device and a test method, and relates to the field of printed circuit board testing, wherein the test device comprises a base, a first carrier and a second carrier, the first carrier is arranged on the base, and the second carrier is slidably arranged on the base in the vertical direction; a positioning column is arranged on the first carrier, and the positioning column has sliding degrees in the width direction and the length direction of the first carrier; a positioning piece is arranged on the second carrier, and the positioning piece has sliding degrees in the width direction and the length direction of the second carrier; the positioning column is used for mounting a printed circuit board, and the positioning piece is used for mounting a probe, and the probe is in contact with or separated from a test point on the printed circuit board, so that the technical problem of poor universality of the test device is solved, and the technical effect of improving the universality of the test device and being compatible with printed circuit boards of various specifications is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printed circuit boards, and in particular to a test device and a test method. BACKGROUND

[0002] In the batch production process of printed circuit boards (PCBA), FCT testing is required, that is, the real working environment of the circuit board is simulated to verify whether the overall function is normal, so as to ensure that the printed circuit board is a normal product.

[0003] Since printed circuit boards have different specifications, the test points and mounting holes of printed circuit boards of different specifications are different, and corresponding FCT test devices need to be designed for various printed circuit boards, resulting in poor universality of the FCT test device of the prior art, and the FCT test device cannot be compatible with printed circuit boards of various specifications. SUMMARY

[0004] The present application provides a test device and a test method to at least solve the problem that the test device cannot be compatible with printed circuit boards of different specifications in the related art.

[0005] The present application provides a test device, which includes a base, a first carrier and a second carrier, the first carrier is arranged on the base, and the second carrier is slidably arranged on the base along the vertical direction; a positioning column is arranged on the first carrier, and the positioning column has sliding degrees along the width direction and the length direction of the first carrier; a positioning piece is arranged on the second carrier, and the positioning piece has sliding degrees along the width direction and the length direction of the second carrier; the positioning column is used for mounting a printed circuit board, and the positioning piece is used for mounting a probe, the probe is in contact with or separated from a test point on the printed circuit board:

[0006] The present application also provides a test method using the test device, which includes:

[0007] Sliding the positioning column along the length direction and the width direction of the first carrier to a first target position, so as to position the printed circuit board through the positioning column located at the first target position;

[0008] Sliding the positioning piece along the length direction and the width direction of the second carrier to a second target position, so as to position the probe through the positioning piece located at the second target position;

[0009] Moving the second carrier so that the probe is in contact with the test point on the printed circuit board to perform performance testing.

[0010] The positioning column of the test equipment provided by the application can slide along the width direction and the length direction of the first carrier, so that the positioning column can slide to different positions, so as to position the printed circuit boards with different hole positions through the positioning column at different positions; the positioning member of the test equipment can slide along the width direction and the length direction of the second carrier, so that the positioning member can slide to different positions, so as to match the test point positions on the printed circuit board through the positioning member at different positions; therefore, the slidable positioning column of the test equipment of the application can be compatible with printed circuit boards with different hole positions, the slidable positioning member of the test equipment of the application can be compatible with probes with different test point positions, the versatility of the test equipment is improved, and the test cost is reduced, so that the technical problem of being unable to be compatible with printed circuit boards with different specifications can be solved, and the technical effects of improving the versatility of the test equipment and being compatible with printed circuit boards with different specifications are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0012] Figure 1 The first structure schematic diagram of the test equipment provided by the embodiments of the application is shown in FIG. 1.

[0013] Figure 2 The first structure schematic diagram of the test equipment provided by the embodiments of the application is shown in FIG. 1. Figure 1 The partial enlarged view of A in FIG. 1 is shown in FIG. 2.

[0014] Figure 3 The structure schematic diagram of the first sliding mechanism of the test equipment provided by the embodiments of the application is shown in FIG. 3.

[0015] Figure 4 The partial enlarged view of C in FIG. 3 is shown in FIG. 4. Figure 2

[0016] Figure 5 The partial enlarged view of D in FIG. 3 is shown in FIG. 5. Figure 2

[0017] The partial enlarged view of B in FIG. 3 is shown in FIG. 6. Figure 6 Figure 1

[0018] Figure 7 The second structure schematic diagram of the test equipment provided by the embodiments of the application is shown in FIG. 7.

[0019] Figure 8 The partial enlarged view of E in FIG. 7 is shown in FIG. 8. Figure 7

[0020] Figure 9 ​​​​The second carrier, the replacement plate, the positioning piece, and the probe of the test equipment provided by the embodiment of the present application are shown in the exploded structural view;

[0021] Figure 10 The positioning piece and the probe of the test equipment provided by the embodiment of the present application are shown in the structural view;

[0022] Figure 11 The positioning piece and the probe of the test equipment provided by the embodiment of the present application are shown in the sectional view;

[0023] Figure 12 The harness seat of the test equipment provided by the embodiment of the present application is shown in the structural view;

[0024] Figure 13 The limiting seat of the test equipment provided by the embodiment of the present application is shown in the structural view;

[0025] Figure 14 The first locking groove of the test equipment provided by the embodiment of the present application is shown in the structural view;

[0026] Figure 15 The second locking groove of the test equipment provided by the embodiment of the present application is shown in the structural view;

[0027] Figure 16 The method flowchart of the test method provided by the embodiment of the present application is shown in the structural view.

[0028] The above-mentioned drawings include the following reference signs:

[0029] 1, base; 2, first carrier; 3, second carrier; 4, positioning column; 5, positioning piece; 6, printed circuit board; 7, probe; 8, first sliding mechanism; 9, second sliding mechanism; 10, positioning plate; 11, fixed plate; 12, locking plate; 13, fastener; 14, sliding groove; 15, first positioning plate; 16, second positioning plate; 17, first fixed plate; 18, second fixed plate; 19, first locking plate; 20, second locking plate; 21, first sliding groove; 22, second sliding groove; 23, first fastener; 24, second fastener; 25, first locking groove; 26, second locking groove; 27, third fastener; 28, fourth fastener; 29, third locking groove; 30, fourth locking groove; 31, first threaded hole; 32, second threaded hole; 33, first probe sliding groove; 34, replacement plate; 35, second probe sliding groove; 36, fifth fastener; 37, limiting plate; 38, wire harness seat; 39, limiting seat; 40, wire harness groove; 41, first plate body; 42, second plate body; 43, rotating shaft; 44, wire harness cavity; 45, wire arrangement frame; 46, wire arrangement hole; 47, sixth fastener; 48, rectangular groove; 49, nut; 50, fixed sleeve; 51, half ring; 52, wire harness plate; 53, sliding cavity; 54, spring; 55, wire arrangement mechanism; 56, support plate; 57, sliding column; 58, carrier driving mechanism; 59, fixed frame; 60, first locking groove; 61, second locking groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. The terms "parallel", "perpendicular", "equal" include the described case and the approximate case similar to the described case, and the approximate case is within an acceptable deviation range, wherein the acceptable deviation range is determined by considering the measurement being discussed and the error related to the measurement of a specific quantity (i.e. the limitation of the measurement system) by a person skilled in the art. For example, "parallel" includes absolute parallel and approximate parallel, wherein the acceptable deviation range of approximate parallel can be, for example, within 5°; "perpendicular" includes absolute perpendicular and approximate perpendicular, wherein the acceptable deviation range of approximate perpendicular can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, less than or equal to 5% of the difference between the two. For a person skilled in the art, the specific meaning of the above terms in the present application can be understood in specific cases.

[0032] In order for those skilled in the art to better understand the scheme of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0033] Embodiment one

[0034] The present embodiment provides a test device, comprising a base 1, a first carrier 2 and a second carrier 3, the first carrier 2 is arranged on the base 1, and the second carrier 3 is slidably arranged on the base 1 in the vertical direction; a positioning column 4 is arranged on the first carrier 2, and the positioning column 4 has sliding degrees in the width direction and the length direction of the first carrier 2; a positioning piece 5 is arranged on the second carrier 3, and the positioning piece 5 has sliding degrees in the width direction and the length direction of the second carrier 3; the positioning column 4 is used for mounting a printed circuit board 6, the positioning piece 5 is used for mounting a probe 7, and the probe 7 is in contact or separated from a test point on the printed circuit board 6.

[0035] As Figure 1As shown, the test device of the present application comprises a base 1, a first carrier 2 and a second carrier 3, the second carrier 3 is slidably arranged on the base 1 in the vertical direction, so that the second carrier 3 can relatively approach or move away from the base 1 in the vertical direction. Further, the first carrier 2 is arranged on the base 1, so that under the sliding of the second carrier 3 relative to the base 1 in the vertical direction, the first carrier 2 and the second carrier 3 can relatively approach or move away from each other in the vertical direction. The first carrier 2 is provided with positioning columns 4, and the positioning columns 4 are arranged in plurality, preferably four positioning columns 4, and the printed circuit board 6 (PCBA board) is provided with positioning holes, and the positioning holes are arranged in plurality, preferably four positioning holes, and the positioning holes are arranged one-to-one with the positioning columns 4, when the positioning holes on the printed circuit board 6 are sleeved on the positioning columns 4, the positioning of the printed circuit board 6 by the first carrier 2 is realized through the cooperation of the positioning columns 4 and the positioning holes. The second carrier 3 is provided with a positioning member 5, and the probe 7 is installed on the positioning member 5 in the vertical direction, and the positioning of the probe 7 is realized through the positioning member 5. As shown Figure 1 As shown, the length direction of the first carrier 2 is the X direction (left-right direction), the width direction of the first carrier 2 is the Y direction (front-rear direction), and the height direction of the first carrier 2 is the Z direction (height direction), i.e. the vertical direction. Among them, the positioning columns 4 are slidably arranged on the first carrier 2, and the sliding direction of the positioning columns 4 is along the width direction and the length direction of the first carrier 2. The printed circuit board 6 has different specifications, and the hole positions of different specifications of the printed circuit board 6 are different, so that the sliding of the positioning columns 4 along the width direction and the length direction of the first carrier 2 can move the positioning columns 4 to different positions in order to adapt to the hole positions of different models of the printed circuit board 6. The length direction of the second carrier 3 is consistent with the length direction of the first carrier 2, the width direction of the second carrier 3 is consistent with the width direction of the first carrier 2, and the height direction of the second carrier 3 is consistent with the height direction of the first carrier 2. The positioning member 5 is slidably arranged on the second carrier 3, and the sliding direction of the positioning member 5 is along the width direction and the length direction of the second carrier 3, since the printed circuit board 6 has different specifications, the point positions of the test points on different specifications of the printed circuit board 6 are different, so that the sliding of the positioning member 5 along the width direction and the length direction of the second carrier 3 can move the positioning member 5 to different positions in order to adapt to the point positions of the test points on different models of the printed circuit board 6, and further make the probe 7 on the positioning member 5 correspond to the test points one-to-one, so as to test the printed circuit board 6.

[0036] The positioning column 4 of the test equipment of the present application can slide along the width direction and the length direction of the first carrier 2, so that the positioning column 4 can slide to different positions, so as to position the printed circuit board 6 with different hole positions through the positioning column 4 at different positions; the positioning member 5 of the test equipment can slide along the width direction and the length direction of the second carrier 3, so that the positioning member 5 can slide to different positions, so as to match the test point positions on the printed circuit board 6 through the positioning member 5 at different positions; therefore, the slidable positioning column 4 on the test equipment of the present application can be compatible with the printed circuit board 6 with different hole positions, the slidable positioning member 5 on the test equipment of the present application can be compatible with the probe 7 with different test point positions, thereby improving the versatility of the test equipment and reducing the test cost.

[0037] In one specific embodiment, the test equipment further comprises a first sliding mechanism 8 and a second sliding mechanism 9, the first sliding mechanism 8 is arranged on the first carrier 2, the first sliding mechanism 8 has a sliding degree of freedom along the width direction and the length direction of the first carrier 2, and the positioning column 4 is arranged on the first sliding mechanism 8; the second sliding mechanism 9 is arranged on the second carrier 3, the second sliding mechanism 9 has a sliding degree of freedom along the length direction of the second carrier 3, and the positioning member 5 has a sliding degree of freedom along the width direction of the second carrier 3 on the second sliding mechanism 9.

[0038] The test equipment of the present application further comprises a first sliding mechanism 8 and a second sliding mechanism 9, the first sliding mechanism 8 is used to realize the sliding of the positioning column 4, and the second sliding mechanism 9 is used to realize the sliding of the positioning member 5. Specifically, as shown in Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the first sliding mechanism 8 is arranged on the first carrier 2, the first sliding mechanism 8 can slide along the width direction of the first carrier 2, and the first sliding mechanism 8 can slide along the length direction of the first carrier 2, so that the first sliding mechanism 8 can slide to the corresponding position along the length direction and the width direction of the carrier, and the positioning column 4 is arranged on the first sliding mechanism 8, so that the positioning column 4 can slide to the corresponding position under the driving of the first sliding mechanism 8, so as to adapt to the hole positions of printed circuit boards 6 of different models. The second sliding mechanism 9 is arranged on the second carrier 3, the second sliding mechanism 9 can slide along the length direction of the second carrier 3, and the positioning member 5 is slidably arranged on the second sliding mechanism 9 along the width direction of the second carrier 3, so that under the sliding cooperation of the second sliding mechanism 9 and the positioning member 5, the positioning member 5 can slide along the length direction and the width direction of the second carrier 3 on the second carrier 3, so as to adapt to the test point positions on printed circuit boards 6 of different models, so that the probes 7 on the positioning member 5 correspond to the test points one by one, and then the printed circuit board 6 is tested.

[0039] The positioning column 4 can slide to different positions through the first sliding mechanism 8, so that the printed circuit board 6 in different hole positions can be positioned by the positioning column 4 in different positions; and the positioning piece 5 can slide to different positions through the second sliding mechanism 9, so that the probe 7 on the positioning piece 5 in different positions can be matched with the test point position on the printed circuit board 6; therefore, the positioning column 4 which can slide on the test equipment of the present application can be compatible with the printed circuit board 6 in different hole positions, the positioning piece 5 which can slide on the test equipment of the present application can be compatible with the probe 7 in different test point positions, the versatility of the test equipment is improved, and the test cost is reduced.

[0040] In one specific embodiment, the first sliding mechanism 8 includes a positioning plate 10, a fixed plate 11, a locking plate 12 and a fastener 13, the first carrier 2 is provided with a sliding groove 14, the positioning plate 10 is slidably arranged in the sliding groove 14 along the width direction and the length direction of the first carrier 2, and the positioning column 4 is arranged on the positioning plate 10; the fixed plate 11 is arranged on the positioning plate 10, the locking plate 12 is arranged on the fixed plate 11, and the fastener 13 is arranged to lock or unlock the fixed plate 11 and the first carrier 2, and to lock or unlock the locking plate 12 and the positioning plate 10.

[0041] The first sliding mechanism 8 of the present application includes a positioning plate 10, a fixed plate 11, a locking plate 12 and a fastener 13, and the sliding and fixing of the positioning column 4 on the first carrier 2 are realized through the cooperation of the positioning plate 10, the fixed plate 11 and the locking plate 12. Specifically, as shown in Figure 2 The first carrier 2 is provided with a sliding groove 14, the positioning plate 10 is slidably arranged in the sliding groove 14, and the positioning plate 10 slides in the sliding groove 14 along the width direction and the length direction of the first carrier 2, and the positioning column 4 is arranged on the positioning plate 10, so that the positioning column 4 can slide along the width direction and the length direction of the first carrier 2 under the driving of the positioning plate 10, so as to adapt to the hole positions of printed circuit boards 6 of different models. Further, as shown in Figure 2 and Figure 3As shown, the fixing plate 11 is arranged on the positioning plate 10, the locking plate 12 is arranged on the fixing plate 11, the fixing plate 11 slides along the width direction and the length direction of the first carrier 2 under the driving of the positioning plate 10, the fastener 13 is used to lock or unlock the fixing plate 11 and the first carrier 2, and lock or unlock the locking plate 12 and the fixing plate 11. When the fastener 13 locks the fixing plate 11 and the first carrier 2, and the fastener 13 locks the locking plate 12 and the positioning plate 10, the fastener 13 fixes the fixing plate 11 and the first carrier 2, and the fastener 13 fixes the locking plate 12 and the positioning plate 10, at this time, the positioning plate 10 is locked and cannot move, and the positioning column 4 on the positioning plate 10 can be used to position the printed circuit board 6. When the fastener 13 locks the fixing plate 11 and the first carrier 2, and the locking plate 12 and the positioning plate 10 are unlocked, the fixing plate 11 cannot move along the length direction of the first carrier 2, and the positioning plate 10 can slide along the width direction of the first carrier 2, at this time, the position of the positioning column 4 along the width direction of the first carrier 2 can be adjusted by the sliding of the positioning plate 10 along the width direction of the first carrier 2. When the fastener 13 unlocks the fixing plate 11 and the first carrier 2, and the locking plate 12 and the positioning plate 10 are locked, the fixing plate 11 can slide along the length direction of the first carrier 2, and the positioning plate 10 cannot move along the width direction of the first carrier 2, at this time, the position of the positioning column 4 along the length direction of the first carrier 2 can be adjusted by the sliding of the positioning plate 10 along the length direction of the first carrier 2. When the fastener 13 unlocks the fixing plate 11 and the first carrier 2, and the locking plate 12 and the positioning plate 10 are unlocked, the fixing plate 11 can slide along the length direction of the first carrier 2, and the positioning plate 10 can slide along the width direction of the first carrier 2, at this time, the position of the positioning column 4 along the width direction and the length direction of the first carrier 2 can be adjusted by the sliding of the positioning plate 10 along the width direction and the length direction of the first carrier 2.

[0042] The present application realizes the sliding and fixing of the positioning column 4 on the first carrier 2 through the cooperation of the positioning plate 10, the fixing plate 11 and the locking plate 12, and realizes the sliding and fixing of the positioning column 4 along the width direction and the length direction of the first carrier 2 through the first sliding mechanism 8, so that the positioning column 4 can slide to different positions, so as to position the printed circuit board 6 with different hole positions through the positioning column 4 at different positions.

[0043] In one specific embodiment, the positioning plate 10 includes a first positioning plate 15 and a second positioning plate 16, the fixing plate 11 includes a first fixing plate 17 and a second fixing plate 18, the locking plate 12 includes a first locking plate 19 and a second locking plate 20, and the sliding groove 14 includes a first sliding groove 21 and a second sliding groove 22.

[0044] The fastener 13 includes a first fastener 23 and a second fastener 24.

[0045] The first positioning plate 15 extends along the width direction of the first carrier 2, is slidably arranged in the first sliding groove 21 along the length direction and the width direction of the first carrier 2, and is provided with a first locking groove 25 extending along the width direction of the first carrier 2. The first locking groove 25 is slidably arranged on the first fixed plate 17 along the extension direction of the first locking groove 25. The first fastener 23 locks or unlocks the first fixed plate 17 with the first carrier 2. The first fixed plate 17 limits the first locking groove 25 along the length direction of the first carrier 2.

[0046] The first locking plate 19 is arranged on the first fixed plate 17. The first positioning plate 15 is provided with a second locking groove 26 extending along the width direction of the first carrier 2. The second locking groove 26 is slidably arranged on the second fastener 24 along the extension direction of the second locking groove 26. The second fastener 24 locks or unlocks the first locking plate 19 with the first positioning plate 15.

[0047] The fastener 13 further comprises a third fastener 27 and a fourth fastener 28.

[0048] The second positioning plate 16 extends along the length direction of the first carrier 2, is slidably arranged in the second sliding groove 22 along the length direction and the width direction of the first carrier 2, and is provided with a third locking groove 29 extending along the length direction of the first carrier 2. The third locking groove 29 is slidably arranged on the second fixed plate 18 along the extension direction of the third locking groove 29. The third fastener 27 locks or unlocks the second fixed plate 18 with the first carrier 2. The second fixed plate 18 limits the third locking groove 29 along the width direction of the first carrier 2.

[0049] The second locking plate 20 is arranged on the second fixed plate 18. The second positioning plate 16 is provided with a fourth locking groove 30 extending along the length direction of the first carrier 2. The fourth locking groove 30 is slidably arranged on the fourth fastener 28 along the extension direction of the fourth locking groove 30. The fourth fastener 28 locks or unlocks the second locking plate 20 with the second positioning plate 16.

[0050] The positioning column 4 is arranged on the first positioning plate 15 and the second positioning plate 16.

[0051] As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , the first sliding mechanism 8 of the present application comprises a first positioning plate 15, a first fixed plate 17, a first locking plate 19, a first fastener 23, a second fastener 24, a second positioning plate 16, a second fixed plate 18, a second locking plate 20, a second fastener 24 and a second fastener 24.

[0052] The sliding groove 14 comprises a first sliding groove 21 arranged on the first carrier 2, and the first positioning plate 15 slides in the first sliding groove 21 along the width direction and the length direction of the first carrier 2. The first positioning plate 15 is provided with a first locking groove 25 extending along the width direction of the first carrier 2, and the first locking groove 25 penetrates the first positioning plate 15 along the vertical direction. As shown in Figure 2 and Figure 3 The first fixed plate 17 extends along the vertical direction and is arranged in the first locking groove 25 along the vertical direction. The first fixed plate 17 is provided with a first fastener 23 for locking or unlocking the first fixed plate 17 with the first carrier 2. The first positioning plate 15 is provided with two second locking grooves 26 symmetrically arranged on the left and right sides of the first locking groove 25. The first locking plate 19 is arranged on the first fixed plate 17 and symmetrically arranged on the left and right sides of the first fixed plate 17. The second fastener 24 is arranged in the second locking groove 26 to connect the first positioning plate 15 with the first locking plate 19. When the first fastener 23 locks the first fixed plate 17 with the first carrier 2, and the second fastener 24 locks the first locking plate 19 with the first positioning plate 15, the first fastener 23 fixedly connects the first fixed plate 17 with the first carrier 2, and the second fastener 24 fixedly connects the first locking plate 19 with the first positioning plate 15. At this time, the first positioning plate 15 is locked and cannot be moved. The printed circuit board 6 can be positioned by the positioning column 4 on the first positioning plate 15. When the first fastener 23 unlocks the first fixed plate 17 with the first carrier 2, and the second fastener 24 unlocks the first locking plate 19 with the first positioning plate 15, the first fixed plate 17 cannot move along the length direction of the first carrier 2, and the first positioning plate 15 can slide along the width direction of the first carrier 2. At this time, the position of the positioning column 4 along the width direction of the first carrier 2 can be adjusted by the sliding of the first positioning plate 15 along the width direction of the first carrier 2. When the first fastener 23 unlocks the first fixed plate 17 with the first carrier 2, and the second fastener 24 locks the first locking plate 19 with the first positioning plate 15, the first fixed plate 17 can slide along the length direction of the first carrier 2, and the first positioning plate 15 cannot move along the width direction of the first carrier 2. At this time, the position of the positioning column 4 along the length direction of the first carrier 2 can be adjusted by the sliding of the first positioning plate 15 along the length direction of the first carrier 2. When the first fastener 23 unlocks the first fixed plate 17 with the first carrier 2, and the second fastener 24 unlocks the first locking plate 19 with the first positioning plate 15, the first fixed plate 17 can slide along the length direction of the first carrier 2, and the first positioning plate 15 can slide along the width direction of the first carrier 2. At this time, the position of the positioning column 4 along the width direction and the length direction of the first carrier 2 can be adjusted by the sliding of the first positioning plate 15 along the width direction and the length direction of the first carrier 2.

[0053] Similarly, a second sliding groove 22 is provided on the first carrier 2, and the extension direction of the second sliding groove 22 is arranged perpendicularly to the extension direction of the first sliding groove 21. The second positioning plate 16 slides in the second sliding groove 22 along the width direction and the length direction of the first carrier 2. A third locking groove 29 is arranged on the second positioning plate 16, the third locking groove 29 extends along the length direction of the first carrier 2, and the third locking groove 29 penetrates the second positioning plate 16 in the vertical direction, as shown in Figure 2 and Figure 3As shown, the second fixing plate 18 extends in the vertical direction, and the second fixing plate 18 is arranged in the third locking groove 29 in the vertical direction, the third fastener 27 is arranged on the second fixing plate 18, and the third fastener 27 is used for locking or unlocking the second fixing plate 18 and the first carrier 2. The second positioning plate 16 is provided with two fourth locking grooves 30, which are symmetrically arranged on both sides of the third locking groove 29; the second locking plate 20 is arranged on the second fixing plate 18, and the second locking plate 20 is symmetrically arranged on the front and back of the second fixing plate 18, and the fourth fastener 28 is arranged in the fourth locking groove 30 to connect the second positioning plate 16 and the second locking plate 20. When the third fastener 27 locks the second fixing plate 18 and the first carrier 2, and the fourth fastener 28 locks the second locking plate 20 and the second positioning plate 16, the third fastener 27 fixes and connects the second fixing plate 18 and the first carrier 2, and the fourth fastener 28 fixes and connects the second locking plate 20 and the second positioning plate 16, at this time, the second positioning plate 16 is locked and cannot move, and the printed circuit board 6 can be positioned by the positioning column 4 on the second positioning plate 16. When the third fastener 27 locks the second fixing plate 18 and the first carrier 2, and the fourth fastener 28 unlocks the second locking plate 20 and the second positioning plate 16, the second fixing plate 18 cannot move along the width direction of the first carrier 2, and the second positioning plate 16 can slide along the length direction of the first carrier 2, at this time, the position of the positioning column 4 along the length direction of the first carrier 2 can be adjusted by the sliding of the second positioning plate 16 along the length direction of the first carrier 2. When the third fastener 27 unlocks the second fixing plate 18 and the first carrier 2, and the fourth fastener 28 locks the second locking plate 20 and the second positioning plate 16, the second fixing plate 18 can slide along the width direction of the first carrier 2, and the second positioning plate 16 cannot move along the length direction of the first carrier 2, at this time, the position of the positioning column 4 along the width direction of the first carrier 2 can be adjusted by the sliding of the second positioning plate 16 along the width direction of the first carrier 2. When the third fastener 27 unlocks the second fixing plate 18 and the first carrier 2, and the fourth fastener 28 unlocks the second locking plate 20 and the second positioning plate 16, the second fixing plate 18 can slide along the length direction of the first carrier 2, and the second positioning plate 16 can slide along the width direction of the first carrier 2, at this time, the position of the positioning column 4 along the width direction and the length direction of the first carrier 2 can be adjusted by the sliding of the second positioning plate 16 along the width direction and the length direction of the first carrier 2. Wherein, the positioning column 4 is arranged on the first positioning plate 15 and the second positioning plate 16, and the positioning column 4 is supported and positioned by the first positioning plate 15 and the second positioning plate 16, which can improve the connection stability of the positioning column 4.When the first positioning plate 15 slides along the first carrier 2 width direction to adjust the position of the positioning column 4 along the first carrier 2 width direction, the second positioning plate 16 moves in coordination with the first positioning plate 15, that is, the second positioning plate 16 slides along the first carrier 2 width direction; when the first positioning plate 15 slides along the first carrier 2 length direction to adjust the position of the positioning column 4 along the first carrier 2 length direction, the second positioning plate 16 moves in coordination with the first positioning plate 15, that is, the second positioning plate 16 slides along the first carrier 2 length direction. Alternatively, when the second positioning plate 16 slides, the first positioning plate 15 slides in coordination with the second positioning plate 16, and the specific working principle is the same, which will not be repeated here.

[0054] The first positioning plate 15 and the second positioning plate 16 jointly position and support the positioning column 4, thereby improving the connection stability and positioning accuracy of the positioning column 4.

[0055] In one specific embodiment, a plurality of first threaded holes 31 are arranged on the first carrier 2 along the length direction thereof, and the first fastener 23 is installed into different first threaded holes 31 to place the first fixed plate 17 at different positions along the length direction of the first carrier 2; a plurality of second threaded holes 32 are arranged on the first carrier 2 along the width direction thereof, and the second fastener 24 is installed into different second threaded holes 32 to place the second fixed plate 18 at different positions along the width direction of the first carrier 2.

[0056] The first carrier 2 is provided with a plurality of through holes along the length direction or the width direction thereof, so as to realize the sliding adjustment of the positioning plate 10 along the length direction or the width direction of the first carrier 2 through the through holes. Specifically, as shown in Figure 2 and Figure 4 A plurality of first threaded holes 31 are arranged on the first carrier 2 along the length direction thereof, the first threaded holes 31 are arranged in a linear equidistant array along the length direction of the first carrier 2, and the first threaded holes 31 are arranged symmetrically above and below the first sliding groove 21. Two first fasteners 23 are arranged, and the two first fasteners 23 are arranged symmetrically above and below the first sliding groove 21, one of the first fasteners 23 is threadedly connected with the first threaded hole 31 above the first sliding groove 21, and the other first fastener 23 is threadedly connected with the first threaded hole 31 below the first sliding groove 21, so as to stably connect the first fixed plate 17 with the first carrier 2 through the first fastener 23. When it is necessary to slide the first positioning plate 15 along the length direction of the first carrier 2, the first fastener 23 is removed from the first threaded hole 31 on the first carrier 2, then the first positioning plate 15 is slid along the length direction to the target position, and finally the first fastener 23 is threadedly connected with the first threaded hole 31, thereby realizing the position adjustment and fixation of the first positioning plate 15 along the length direction of the first carrier 2. Similarly, as shown in Figure 2 and Figure 5As shown, the first carrier 2 is provided with a plurality of second threaded holes 32 along the width direction thereof, the second threaded holes 32 are arranged in a linear equidistant array along the width direction of the first carrier 2, and the second threaded holes 32 are arranged symmetrically about the second sliding groove 22. Two second fasteners 24 are arranged symmetrically about the second sliding groove 22, one of the second fasteners 24 is threadedly connected with the second threaded hole 32 above the second sliding groove 22, and the other second fastener 24 is threadedly connected with the second threaded hole 32 below the second sliding groove 22, so as to stably connect the second fixed plate 18 with the first carrier 2 through the second fasteners 24. When it is needed to slide the second positioning plate 16 along the width direction of the first carrier 2, the second fasteners 24 are removed from the second threaded holes 32 on the first carrier 2, then the second positioning plate 16 is slid along the width direction to a target position, and finally the second fasteners 24 are threadedly connected with the second threaded holes 32, so as to adjust and fix the position of the second positioning plate 16 along the width direction of the first carrier 2.

[0057] The first positioning plate 15 can be adjusted and fixed along the length direction of the first carrier 2 through the cooperation of the first fasteners 23 with the first threaded holes 31 at different positions, and the second positioning plate 16 can be adjusted and fixed along the width direction of the first carrier 2 through the cooperation of the second fasteners 24 with the second threaded holes 32 at different positions, so that the structure is simple and compact.

[0058] In one specific embodiment, as shown in Figure 14 The first carrier 2 is provided with a first locking groove 60 along the length direction thereof, the first locking groove 60 extends along the length direction of the first carrier 2, the first fastener 23 is arranged in the first locking groove 60, and the first fastener 23 can slide along the extension direction of the first locking groove 60, so as to drive the first positioning plate 15 to slide along the length direction of the first carrier 2 through the first fastener 23, so that the sliding of the first positioning plate 15 along the length direction of the first carrier 2 is continuous, and the first positioning plate 15 can slide to any position along the length direction of the first carrier 2. Figure 15 The first carrier 2 is provided with a second locking groove 61 along the width direction thereof, the second locking groove 61 extends along the width direction of the first carrier 2, the second fastener 24 is arranged in the second locking groove 61, and the second fastener 24 can slide along the extension direction of the second locking groove 61, so as to drive the second positioning plate 16 to slide along the width direction of the first carrier 2 through the second fastener 24, so that the sliding of the second positioning plate 16 along the width direction of the first carrier 2 is continuous, and the second positioning plate 16 can slide to any position along the width direction of the first carrier 2.

[0059] In one embodiment, the second carrier 3 is provided with a first probe sliding groove 33 extending along the length direction of the second carrier 3, the second sliding mechanism 9 comprises a replacement plate 34 slidably arranged in the first probe sliding groove 33 along the extending direction of the first probe sliding groove 33, and the positioning member 5 is arranged on the replacement plate 34.

[0060] The present application realizes the sliding of the positioning member 5 along the length direction of the second carrier 3 through the sliding of the replacement plate 34. Specifically, as shown in Figure 6 and Figure 9 the second carrier 3 is provided with a first probe sliding groove 33 extending along the length direction of the second carrier 3, the second sliding mechanism 9 comprises a replacement plate 34 slidably arranged in the first probe sliding groove 33 along the extending direction of the first probe sliding groove 33, and the positioning member 5 is arranged on the replacement plate 34. Therefore, under the sliding of the replacement plate 34 along the length direction of the second carrier 3, the positioning member 5 can be driven to slide along the length direction of the second carrier 3, so as to be slid to a corresponding position, and then the probes 7 on the positioning member 5 at different positions are adapted to the test point positions on the printed circuit board 6. The second sliding mechanism 9 further comprises a sixth fastener 47 penetrating the first probe sliding groove 33, and the sixth fastener 47 is used to lock or unlock the replacement plate 34 and the second carrier 3. When the sixth fastener 47 locks the replacement plate 34 and the second carrier 3, the sixth fastener 47 cannot slide in the first probe sliding groove 33; when the sixth fastener 47 unlocks the replacement plate 34 and the second carrier 3, the sixth fastener 47 can slide in the first probe sliding groove 33 along the length direction of the second carrier 3, and then drive the replacement plate 34 to slide along the length direction of the second carrier 3.

[0061] The present application realizes the sliding of the positioning member 5 along the length direction of the second carrier 3 through the sliding of the replacement plate 34 in the first probe sliding groove 33, and then realizes the sliding of the positioning member 5 and the probes 7 along the length direction of the second carrier 3, so as to adapt the sliding probes 7 to the point position distribution of the test points on different types of printed circuit boards 6, improve the versatility of the test equipment, and reduce the test cost.

[0062] In one embodiment, the second carrier 3 is provided with a first probe sliding groove 33 extending along the length direction of the second carrier 3, the second sliding mechanism 9 comprises a replacement plate 34 slidably arranged in the first probe sliding groove 33 along the extending direction of the first probe sliding groove 33, and the positioning member 5 is arranged on the replacement plate 34. Therefore, under the sliding of the replacement plate 34 along the length direction of the second carrier 3, the positioning member 5 can be driven to slide along the length direction of the second carrier 3, so as to be slid to a corresponding position, and then the probes 7 on the positioning member 5 at different positions are adapted to the test point positions on the printed circuit board 6. The second sliding mechanism 9 further comprises a sixth fastener 47 penetrating the first probe sliding groove 33, and the sixth fastener 47 is used to lock or unlock the replacement plate 34 and the second carrier 3. When the sixth fastener 47 locks the replacement plate 34 and the second carrier 3, the sixth fastener 47 cannot slide in the first probe sliding groove 33; when the sixth fastener 47 unlocks the replacement plate 34 and the second carrier 3, the sixth fastener 47 can slide in the first probe sliding groove 33 along the length direction of the second carrier 3, and then drive the replacement plate 34 to slide along the length direction of the second carrier 3.

[0063] The present application realizes the sliding of the positioning member 5 along the width direction of the second carrier 3 through the second probe sliding groove 35, and further realizes the sliding of the probe 7 on the positioning member 5 along the width direction of the second carrier 3. Specifically, as shown in Figure 9 The replacement plate 34 extends along the width direction of the second carrier 3, and the second probe sliding groove 35 extends along the width direction of the second carrier 3. The positioning member 5 is slidably arranged in the second probe sliding groove 35, and the sliding direction of the positioning member 5 in the second probe sliding groove 35 is along the width direction of the second carrier 3, so as to drive the probe 7 to slide along the width direction of the second carrier 3 through the positioning member 5. Since the replacement plate 34 slides along the length direction of the second carrier 3 through the first probe sliding groove 33, and the positioning member 5 slides along the width direction of the second carrier 3 through the second probe sliding groove 35, the positioning member 5 can slide along the length direction and the width direction of the second carrier 3.

[0064] The positioning member 5 of the present application can slide along the length direction and the width direction of the second carrier 3, so as to place the probe 7 on the positioning member 5 at different positions, so that the probe 7 can adapt to the point distribution of test points on different types of printed circuit boards 6, and improve the versatility of the test equipment and reduce the test cost.

[0065] In one specific embodiment, the positioning member 5 includes a fifth fastener 36 and a limiting plate 37, which are arranged on the probe 7 from top to bottom in sequence. The probe 7 is arranged in the second probe sliding groove 35 along the vertical direction. The fifth fastener 36, the replacement plate 34 and the limiting plate 37 are arranged in sequence from top to bottom. The fifth fastener 36 cooperates with the limiting plate 37 to lock or unlock the probe 7 and the replacement plate 34.

[0066] The positioning member 5 of the present application includes a fifth fastener 36 and a limiting plate 37, and the cooperation of the fifth fastener 36 and the limiting plate 37 realizes the sliding and fixing of the probe 7 on the replacement plate 34. Specifically, as shown in Figure 9 The second carrier 3 is provided with a rectangular groove 48 which penetrates the second carrier 3 along the vertical direction. The replacement plate 34 is fixed below the second carrier 3. The probe 7 is arranged in the rectangular groove 48 and the second probe sliding groove 35 along the vertical direction. The fifth fastener 36 and the limiting plate 37 are arranged on the probe 7 from top to bottom along the vertical direction in sequence. The fifth fastener 36 cooperates with the limiting plate 37 to fix the probe 7 on the replacement plate 34. Further, as shown in Figure 10 and Figure 11As shown, the fifth fastener 36 comprises a nut 49 and a fixing sleeve 50, the fixing sleeve 50 comprises two semicircles 51 with L-shaped cross section, the circumferential side of the two semicircles 51 is provided with external threads, and the nut 49 is connected with the external threads; the circumferential side of the inclined part of the probe 7 is arranged obliquely, and the distance between the circumferential side of the inclined part of the probe 7 and the axis thereof decreases in the direction from top to bottom; the inner wall of the two semicircles 51 is arranged obliquely, and the distance between the inner wall of the semicircle 51 and the axis thereof decreases in the direction from top to bottom. The probe 7 is inserted into the second probe sliding slot 35 from below, so that the limiting plate 37 on the probe 7 is in contact with the bottom of the replacement plate 34, at this time, the two semicircles 51 are sleeved on the probe 7, so that the inclined surface of the circumferential side of the probe 7 is in contact with the inclined inner wall of the semicircle 51, then the nut 49 is connected with the external threads of the semicircle 51, and under the connection of the nut 49 and the external threads, and under the cooperation of the inclined surface of the circumferential side of the probe 7 and the inclined inner wall of the semicircle 51, the probe 7 is fixed with the replacement plate 34. When it is necessary to adjust the position of the probe 7, the nut 49 can be removed, the inclined inner wall of the semicircle 51 is separated from the circumferential side of the probe 7, the probe 7 can be moved to adjust the position of the probe 7, so that the probe 7 adapts to the distribution of test points on printed circuit boards 6 of different models, the versatility of the test equipment is improved, and the test cost is reduced.

[0067] In one specific embodiment, the test equipment comprises a wire harness seat 38, the wire harness seat 38 is arranged on the second carrier 3, the wire harness seat 38 is provided with a limiting seat 39 and a wire harness slot 40, the wire harness seat 38 comprises a first plate body 41, a second plate body 42 and a rotating shaft 43, the rotating shaft 43 is arranged on the first plate body 41, the rotating shaft 43 is rotatably arranged on the wire harness seat 38, the second plate body 42 is telescopically arranged on the first plate body 41 in the direction perpendicular to the rotating shaft 43, and the first plate body 41, the second plate body 42 and the wire harness slot 40 form a wire harness cavity 44.

[0068] The wire harness seat 38 is used to constrain the wire cable connected with the probe 7 in the present application. Specifically, as shown in Figure 9 The wire harness seat 38 is arranged on the second carrier 3, and a plurality of wire harness slots 40 are linearly arranged on the wire harness seat 38 in the length direction of the second carrier 3, and the wire cable can be accommodated in the wire harness slot 40. Further, as shown in Figure 12 The wire harness seat 38 is arranged on the second carrier 3, and a plurality of wire harness slots 40 are linearly arranged on the wire harness seat 38 in the length direction of the second carrier 3, and the wire cable can be accommodated in the wire harness slot 40. Further, as shown in Figure 13As shown, the first plate body 41 is provided with a sliding cavity 53, the second plate body 42 is slidably arranged in the sliding cavity 53 in a direction perpendicular to the rotation shaft 43, and a spring 54 is arranged between the second plate body 42 and the bottom wall of the sliding cavity 53, so that the second plate body 42 is in a position away from the rotation shaft 43. An opening is formed between the end of the second plate body 42 away from the rotation shaft 43 and the wire slot 40, and the end of the second plate body 42 away from the rotation shaft 43 is provided as a wedge surface. When the user puts the cable into the wire slot 44 from top to bottom or takes the cable out of the wire slot 44 from bottom to top, the cable abuts against the wedge surface to compress the second plate body 42 to slide, facilitating the cable to be put in or taken out. When the user needs to pass a thicker cable, the user can directly pull the first plate body 41 and / or the second plate body 42, so that the first plate body 41 and the second plate body 42 rotate around the rotation shaft 43 to the vertical position, so that the opening of the wire slot 44 is increased to facilitate the user to put in or take out the thicker cable. When the operation is completed, the first plate body 41 and / or the second plate body 42 are pulled to rotate around the rotation shaft 43 to the horizontal position, and the cable is limited by the wire slot 44.

[0069] In one specific embodiment, as shown in Figure 7 and Figure 8 The test device further includes a wire arrangement mechanism 55 and a support plate 56, the support plate 56 is arranged on the base 1, and the support plate 56 extends in the vertical direction. A sliding column 57 is arranged between the top plate of the support plate 56 and the base 1, and a carrier driving mechanism 58 is arranged on the base 1, which drives the second carrier 3 to be slidably arranged on the sliding column 57 in the vertical direction. The wire arrangement mechanism 55 includes a fixed frame 59 and a wire arrangement frame 45, the fixed frame 59 is arranged on the support plate 56, and the wire arrangement frame 45 is arranged on the fixed frame 59, and the wire arrangement frame 45 is arranged in a linear array along the length direction of the second carrier 3. A plurality of wire arrangement holes 46 are arranged in the vertical direction on each wire arrangement frame 45, and one cable is limited in one wire arrangement hole 46 to facilitate wire arrangement.

[0070] Example two

[0071] The embodiment provides a test method, as shown in Figure 16 The test method is implemented by using a test device, and the test method comprises the following steps.

[0072] S101, sliding the positioning column 4 to the first target position in the length direction and the width direction of the first carrier 2 to position the printed circuit board 6 by the positioning column 4 at the first target position;

[0073] The first carrier 2 is provided with a positioning column 4, the positioning column 4 can slide along the length direction and the width direction of the first carrier 2, therefore, the user can slide the positioning column 4 along the length direction and the width direction of the first carrier 2, so that the positioning column 4 is located at a first target position, the first target position is a position matched with a positioning hole position on the printed circuit board 6, so as to pass the positioning hole of the printed circuit board 6 on the positioning column 4, realize the adaptation of the positioning column 4 and the positioning hole.

[0074] S102, sliding the positioning member 5 along the length direction and the width direction of the second carrier 3 to a second target position, so as to position the probe 7 through the positioning member 5 located at the second target position;

[0075] The second carrier 3 is provided with a positioning member 5, the positioning member 5 can slide along the length direction and the width direction of the second carrier 3, therefore, the user can slide the positioning member 5 along the length direction and the width direction of the second carrier 3, so that the positioning member 5 is located at a second target position, the second target position is a position matched with a test point on the printed circuit board 6, so as to align the probe 7 and the test point on the printed circuit board 6 in the vertical direction.

[0076] S103, moving the second carrier 3, so that the probe 7 is in contact with the test point on the printed circuit board 6, to perform performance test.

[0077] After the positioning column 4 on the first carrier 2 is positioned and the positioning member 5 on the second carrier 3 is positioned, the probe 7 and the test point on the printed circuit board 6 are aligned in the vertical direction, the second carrier 3 is moved, so that the second carrier 3 moves downward, until the probe 7 on the second carrier 3 and the test point on the printed circuit board 6 are in one-to-one corresponding contact, to perform performance test.

[0078] The above describes in detail the test device and the test method provided by the application. The principles and implementation modes of the application are described by applying specific examples, and the above example description is only used to help understand the method and the core idea of the application. It should be pointed out that, for ordinary skilled in the art, without departing from the principles of the application, the application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the application.

Claims

1. A test apparatus, characterized by, The test equipment comprises a base (1), a first carrier (2) and a second carrier (3), the first carrier (2) is arranged on the base (1), and the second carrier (3) is slidably arranged on the base (1) in the vertical direction; the first carrier (2) is provided with a positioning column (4), the positioning column (4) has sliding freedom in the width direction and the length direction of the first carrier (2); the second carrier (3) is provided with a positioning piece (5), the positioning piece (5) has sliding freedom in the width direction and the length direction of the second carrier (3); the positioning column (4) is used for mounting a printed circuit board (6), and the positioning piece (5) is used for mounting a probe (7), the probe (7) is in contact with or separated from a test point on the printed circuit board (6); the test equipment further comprises a first sliding mechanism (8) and a second sliding mechanism (9); the first sliding mechanism (8) comprises a positioning plate (10), the positioning plate (10) comprises a first positioning plate (15) and a second positioning plate (16), the first carrier (2) is provided with a sliding groove (14), the sliding groove (14) comprises a first sliding groove (21) and a second sliding groove (22), the extension direction of the second sliding groove (22) is perpendicular to the extension direction of the first sliding groove (21); the first positioning plate (15) slides in the first sliding groove (21) in the width direction and the length direction of the first carrier (2), and the second positioning plate (16) slides in the second sliding groove (22) in the width direction and the length direction of the first carrier (2); the positioning column (4) is arranged on the first positioning plate (15) and the second positioning plate (16); the second carrier (3) is provided with a first probe sliding groove (33), the first probe sliding groove (33) extends in the length direction of the second carrier (3), the second sliding mechanism (9) comprises a replacement plate (34), the replacement plate (34) is slidably arranged in the first probe sliding groove (33) in the extension direction of the first probe sliding groove (33), and the positioning piece (5) is arranged on the replacement plate (34); the replacement plate (34) is provided with a second probe sliding groove (35), the second probe sliding groove (35) extends in the width direction of the second carrier (3), and the positioning piece (5) is slidably arranged in the second probe sliding groove (35) in the extension direction of the second probe sliding groove (35).

2. The test apparatus of claim 1, wherein, The first sliding mechanism (8) is arranged on the first carrier (2), the first sliding mechanism (8) has sliding freedom in the width direction and the length direction of the first carrier (2), and the positioning column (4) is arranged on the first sliding mechanism (8); the second sliding mechanism (9) is arranged on the second carrier (3), the second sliding mechanism (9) has sliding freedom in the length direction of the second carrier (3), and the positioning piece (5) has sliding freedom in the width direction of the second carrier (3) on the second sliding mechanism (9).

3. The test apparatus of claim 2, wherein, The first sliding mechanism (8) comprises a fixing plate (11), a locking plate (12) and a fastener (13), the first carrier (2) is provided with a sliding groove (14), the positioning plate (10) is slidably arranged in the sliding groove (14) along the width direction and the length direction of the first carrier (2), and the positioning column (4) is arranged on the positioning plate (10); the fixing plate (11) is arranged on the positioning plate (10), the locking plate (12) is arranged on the fixing plate (11), and the fastener (13) is arranged to lock or unlock the fixing plate (11) and the first carrier (2), and to lock or unlock the locking plate (12) and the positioning plate (10).

4. The test device of claim 3, wherein, The fixing plate (11) comprises a first fixing plate (17) and a second fixing plate (18), and the locking plate (12) comprises a first locking plate (19) and a second locking plate (20); The fastener (13) comprises a first fastener (23) and a second fastener (24); The first positioning plate (15) extends along the width direction of the first carrier (2), is slidably arranged in the first sliding groove (21) along the length direction and the width direction of the first carrier (2), is provided with a first locking groove (25) on the first positioning plate (15), the first locking groove (25) extends along the width direction of the first carrier (2), is slidably arranged on the first fixing plate (17) along the extension direction of the first locking groove (25), the first fastener (23) locks or unlocks the first fixing plate (17) and the first carrier (2), and the first fixing plate (17) limits the first locking groove (25) along the length direction of the first carrier (2); The first locking plate (19) is arranged on the first fixing plate (17), the first positioning plate (15) is provided with a second locking groove (26), the second locking groove (26) extends along the width direction of the first carrier (2), is slidably arranged on the second fastener (24) along the extension direction of the second locking groove (26), and the second fastener (24) locks or unlocks the first locking plate (19) and the first positioning plate (15); The fastener (13) further comprises a third fastener (27) and a fourth fastener (28); The second positioning plate (16) extends along the length direction of the first carrier (2), is slidably arranged in the second sliding groove (22) along the length direction and the width direction of the first carrier (2), and is provided with a third locking groove (29) extending along the length direction of the first carrier (2), the third locking groove (29) being slidably arranged on the second fixed plate (18) along the extending direction of the third locking groove (29), the third fastener (27) locking or unlocking the second fixed plate (18) and the first carrier (2), and the second fixed plate (18) limiting the third locking groove (29) along the width direction of the first carrier (2). The second locking plate (20) is arranged on the second fixed plate (18), the second positioning plate (16) is provided with a fourth locking groove (30) extending along the length direction of the first carrier (2), the fourth locking groove (30) is slidably arranged on the fourth fastener (28) along the extending direction of the fourth locking groove (30), and the fourth fastener (28) locks or unlocks the second locking plate (20) and the second positioning plate (16).

5. The test apparatus of claim 4, wherein, The first carrier (2) is provided with a plurality of first threaded holes (31) along the length direction of the first carrier (2), the first fastener (23) is installed into different first threaded holes (31) to position the first fixed plate (17) at different positions along the length direction of the first carrier (2), and the first carrier (2) is provided with a plurality of second threaded holes (32) along the width direction of the first carrier (2), the second fastener (24) is installed into different second threaded holes (32) to position the second fixed plate (18) at different positions along the width direction of the first carrier (2).

6. The test apparatus of claim 1, wherein, The positioning member (5) comprises a fifth fastener (36) and a limiting plate (37), the fifth fastener (36) and the limiting plate (37) are arranged in sequence from top to bottom on the probe (7), the probe (7) is arranged in the second probe sliding groove (35) in the vertical direction, the fifth fastener (36), the replacement plate (34) and the limiting plate (37) are arranged in sequence from top to bottom, and the fifth fastener (36) and the limiting plate (37) are matched to lock or unlock the probe (7) and the replacement plate (34).

7. The test apparatus of claim 1, wherein, The test device comprises a harness seat (38) arranged on the second carrier (3), the harness seat (38) is provided with a limiting seat (39) and a harness groove (40), the harness seat (38) comprises a first plate body (41), a second plate body (42) and a rotating shaft (43), the rotating shaft (43) is arranged on the first plate body (41), the rotating shaft (43) is rotatably arranged on the harness seat (38), the second plate body (42) is telescopically arranged on the first plate body (41) along a direction perpendicular to the rotating shaft (43), and a harness cavity (44) is formed between the first plate body (41), the second plate body (42) and the harness groove (40).

8. A test method using the test device according to any one of claims 1-7, characterized in that, sliding the positioning column (4) to a first target position along the length direction and the width direction of the first carrier (2) to position the printed circuit board (6) by the positioning column (4) at the first target position; sliding the positioning member (5) to a second target position along the length direction and the width direction of the second carrier (3) to position the probe (7) by the positioning member (5) at the second target position; moving the second carrier (3) so that the probe (7) is in contact with the test point on the printed circuit board (6) to perform performance test.

Images