Rear-section circuit board testing device
By designing a sliding frame structure with sliding rails and fixing bolts, the problems of unstable PCB board fixation and gas leakage during testing were solved, achieving efficient high and low temperature testing.
Patent Information
- Application Number
- CN202520313710.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing fixture platform cannot effectively fix the PCB board, resulting in unstable test data, and high and low temperature gases leak out from the gaps, affecting the heating and cooling speed and test efficiency.
The design includes a device consisting of a bracket, a rail, a first sliding frame, a second sliding frame, and a third sliding frame. The PCB board is stably fixed by sliding rails and fixing bolts, and the gaps are sealed with heat-insulating tape to prevent the leakage of high and low temperature gases.
It achieves effective PCB board fixation and gas sealing, improves the stability of test data and the heating and cooling speed, and enhances test efficiency.
Smart Images
Figure CN223637666U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit board test technical field, especially relates to a back section circuit board testing device. BACKGROUND
[0002] In the research and development and production process of electronic products, high and low temperature test is a common reliability test method, which is used to evaluate the performance and stability of products under extreme temperature environment. The test usually needs to be carried out in a special high and low temperature test chamber, and a special test fixture platform is used to carry and connect the tested circuit board (PCB board).
[0003] The high and low temperature test fixture platform in the prior art has the following defects:
[0004] 1. The existing fixture platform often adopts a simple support or base structure, which cannot effectively fix the test PCB board. During the test process, the PCB board is prone to displacement due to vibration or other reasons, which leads to unstable test data and even damages the connection line and test equipment.
[0005] 2. The existing fixture platform lacks airtightness consideration in design, which causes the airflow instrument in the high and low temperature test chamber to be unable to completely wrap the PCB board, and the high and low temperature gas will overflow from the gap. This not only causes energy waste, but more importantly, it leads to slow temperature rising and falling speed, prolongs the test time and reduces the test efficiency.
[0006] Due to the existence of the above two defects, the test personnel need to spend a lot of time to adjust the position of the PCB board and monitor the temperature change in the test process, which greatly reduces the test efficiency and increases the test cost. INVENTION CONTENTS
[0007] To solve the above problems, the utility model provides a back section circuit board testing device, which realizes effective fixation of the PCB board, prevents high and low temperature gas overflow, reduces the test time and improves the work efficiency.
[0008] The utility model provides a back section circuit board testing device, and the specific technical scheme is as follows:
[0009] Including support, rail frame, first sliding frame, second sliding frame and third sliding frame;
[0010] The rail frame is provided with four, the rail frame is provided with slide rail, and two adjacent rail frames are respectively connected with one support perpendicularly, which constitutes a plane and includes two groups of perpendicular sliding rails;
[0011] The first sliding frame and the second sliding frame are provided with two, respectively arranged on the opposite two groups of rail frames, and connected with the corresponding rail frame along the slide rail.
[0012] The third sliding frame is in sliding connection with the first sliding frame, and the third sliding frame is parallel to the second sliding frame.
[0013] Further, the rail frame is provided with the sliding rails on at least two adjacent surfaces.
[0014] Further, the first sliding frame comprises a sliding part and a frame body, the frame body is in fixed connection with the sliding part, at least one end surface of the frame body is parallel to the surface of the rail frame, and two sliding parts are respectively fixedly connected to two ends of the frame body and are in sliding connection with two parallel and opposite rail frames.
[0015] Further, the sliding part comprises an L-shaped plate body structure and a fixing bolt, and at least one sliding protrusion of the L-shaped plate body is matched with the sliding rail.
[0016] Further, the second sliding frame comprises a sliding plate and a fixed plate, the fixed plate is fixed on the end surface of the sliding plate, and the end surfaces of the two ends of the sliding plate are in sliding connection with two parallel and opposite rail frames.
[0017] Further, the end surface of the sliding plate is provided with a sliding protrusion matched with the sliding rail on the corresponding rail frame, and the end surface of the sliding plate is further provided with a fixing bolt penetrating through the plate surface.
[0018] Further, the sliding plate is further provided with a second sliding part perpendicular to the plate body at the joint with the rail frame, one side of the second sliding part in connection with the rail frame is provided with the sliding protrusion matched with the rail frame.
[0019] Further, the third sliding frame is arranged between the two second sliding frames.
[0020] Further, the third sliding frame comprises a bearing part and an end part, and the end surface of the bearing part is flush with the end surface of the third sliding frame.
[0021] The frame body is provided with the sliding rail, the end part is provided with a sliding protrusion matched with the sliding rail on the frame body, and the end part is further provided with a fixing bolt.
[0022] Further, the end part of the third sliding frame is movably connected with the bearing part through an extension rod.
[0023] The utility model discloses the beneficial effects are as follows:
[0024] The utility model discloses a first sliding frame, second sliding frame and third sliding frame constitute the sliding track of two -way, according to the sliding adjustment of different PCB, make PCB better be covered by heat -insulating adhesive tape, and through heat -insulating adhesive tape closed isolation, avoid high and low temperature gas from the crack overflow, influence the temperature -rising speed, improve the test efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is the device overall structure schematic diagram of the utility model.
[0026] Figure 2 It is the first sliding frame structure schematic diagram of the utility model.
[0027] Figure 3 It is the second sliding frame structure schematic diagram of the utility model embodiment 1 and 3.
[0028] Figure 4 It is the third sliding frame structure schematic diagram of the utility model embodiment 1 and 2.
[0029] Figure 5 It is the second sliding frame structure schematic diagram of the utility model embodiment 2 and 4.
[0030] Figure 6 It is the third sliding frame structure schematic diagram of the utility model embodiment 3 and 4.
[0031] The figure mark explanation: 1 - support, 2 - rail frame, 3 - first sliding frame, 4 - second sliding frame, 5 - third sliding frame, 6 - fixed bolt, 7 - slide rail, 8 - support, 9 - sliding part, 10 - frame body, 11 - sliding protrusion, 12 - fixed plate, 13 - sliding plate, 14 - second sliding part, 15 - bearing part, 16 - end, 17 - fixed bolt. DETAILED DESCRIPTION
[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.
[0033] In the description of the embodiments of the utility model, it needs to be explained that the indicated direction or position relation is based on the direction or position relation shown in the drawing, or the direction or position relation when the utility model product is usually placed, or the direction or position relation usually understood by the person skilled in the art, or the direction or position relation when the utility model product is usually placed, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific direction, structure and operation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second" are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.
[0034] In the description of the embodiments of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0035] Embodiment 1
[0036] Embodiment 1 of the utility model discloses a rear circuit board testing device, as shown in the figure, the device comprises a support 1, a rail frame 2, a first sliding frame 3, a second sliding frame 4 and a third sliding frame 5. Figure 1
[0037] The bottom of the support 1 is provided with a support 8.
[0038] The rail frame 2 is provided with four, the rail frame 2 is provided with a sliding rail 7, and two adjacent rail frames 2 are respectively connected with one support 1 perpendicularly, which constitutes a square sliding track located in the same plane and comprising two groups of mutually perpendicular square sliding tracks.
[0039] As a preferred embodiment, the rail frame 2 is provided with the sliding rail 7 on at least two adjacent sides.
[0040] Specifically, the rail frame 2 is a cubic structure, and can also adopt a prismatic structure with two vertical sides, which is not limited here.
[0041] In this embodiment, the rail frame 2 is a cubic structure, the end face is a square, and the sliding rail 7 is arranged on the central part of the side face.
[0042] The first sliding frame 3 and the second sliding frame 4 are both provided with two, which are arranged on the opposite two groups of rail frames 2 and are slidably connected with the corresponding rail frame 2 along the sliding rail 7.
[0043] The third sliding frame 5 is in sliding connection with the first sliding frame 3, the third sliding frame 5 is parallel to the second sliding frame 4, and the end surface of the second sliding frame 4 is flush with the third sliding frame 5.
[0044] As a preferred embodiment, as shown in Figure 2 The first sliding frame 3 comprises a sliding part 9 and a frame body 10, and the frame body 10 is fixedly connected with the sliding part 9.
[0045] Specifically, the frame body 10 and the sliding part 9 are fixedly connected as an integrated structure.
[0046] The frame body 10 has at least one end surface parallel to the surface where the rail frame 2 is located, and the sliding part 9 is provided with two sliding parts 9 fixedly connected at both ends of the frame body 10, and the two sliding parts 9 are respectively in sliding connection with two parallel and opposite rail frames 2.
[0047] Specifically, the frame body 10 has the same structure as the rail frame 2.
[0048] As a preferred embodiment, the sliding part 9 comprises an L-shaped plate body structure and a fixing bolt 6, and the L-shaped plate body has at least one sliding protrusion 11 matched with the sliding rail 7.
[0049] Specifically, the L-shaped plate body has two plate surfaces each provided with a sliding protrusion 11, and the sliding protrusion 11 traverses the entire plate surface, specifically in a cubic structure, to ensure the stability of sliding and reduce the shaking of the sliding frame during use.
[0050] Specifically, as shown in Figure 1 The fixing bolt 6 is arranged on one side of the plate body of the L-shaped plate body at the top end surface in contact with the rail frame 2, and the fixing bolt 6 penetrates the corresponding plate surface of the L-shaped plate body, and after adjusting the position of the first sliding frame 3, the first sliding frame 3 is fixed through the fixing bolt 6.
[0051] As a preferred embodiment, as shown in Figure 3 The second sliding frame 4 comprises a sliding plate 13 and a fixed plate 12, and the fixed plate 12 is fixed on the end surface of the sliding plate 13.
[0052] Specifically, the fixed plate 12 is fixed on the sliding plate 13 through a bolt embedded in the plate body, and the end surfaces at both ends of the sliding plate 13 are respectively in sliding connection with two parallel and opposite rail frames 2.
[0053] The end surface of the sliding plate 13 is provided with a sliding protrusion 11 matched with the sliding rail 7 on the corresponding rail frame 2, and the end surface of the sliding plate 13 is also provided with a fixing bolt 6 penetrating the plate surface.
[0054] Specifically, the sliding protrusion 11 is a cuboid structure, and is transversely through the sliding plate 13.
[0055] Specifically, the fixing bolt 6 is arranged at the sliding protrusion 11 of the end surface of the sliding plate 13, and is transversely through the sliding protrusion 11, and one end of the fixing bolt 6 is arranged in the sliding rail 7.
[0056] As a preferred embodiment, the third sliding frame 5 is arranged between two second sliding frames 4.
[0057] As a preferred embodiment, as shown in the drawings, the third sliding frame 5 comprises a bearing part 15 and an end part 16, and the end surface of the bearing part 15 is flush with the end surface of the third sliding frame 5. Figure 4
[0058] The frame body 10 is provided with the sliding rail 7 on at least two adjacent surfaces, the end part 16 is provided with the sliding protrusion 11, the sliding protrusion 11 is matched with the sliding rail 7 on the frame body 10, and the end part 16 is further provided with the fixing bolt 6.
[0059] Specifically, the fixing bolt 6 is transversely through the end part 16.
[0060] Specifically, the fixing bolt 6 is arranged at the sliding protrusion 11, is transversely through the sliding protrusion 11, and is arranged in the sliding rail 7 of the frame body 10.
[0061] In the embodiment, the bearing part 15 and the end part 16 form a right-angled arched structure.
[0062] After the first sliding frame 3 is adjusted, the third sliding frame 5 with a proper size is placed on the first sliding frame 3, and the positions of the second sliding frame 4 and the third sliding frame 5 are adjusted again.
[0063] In use, the PCB is placed on the end surface formed by the second sliding frame 4 and the third sliding frame 5, the positions of the sliding frames are adjusted, the heat insulation rubber pad and the heat insulation cloth are covered, and then the high-low temperature test is carried out.
[0064] Embodiment 2
[0065] Embodiment 2 of the utility model discloses a rear circuit board testing device, as shown in the drawings, the device comprises a support 1, a rail frame 2, a first sliding frame 3, a second sliding frame 4 and a third sliding frame 5. Figure 1
[0066] The bottom of the support 1 is provided with a support 8.
[0067] The rail frame 2 is provided with four rail frames 2, the rail frame 2 is provided with a sliding rail 7, and two adjacent rail frames 2 are respectively connected with a support 1 perpendicularly, and form two groups of square sliding tracks perpendicular to each other.
[0068] As a preferred embodiment, the rail frame 2 is provided with the slide rail 7 on at least two adjacent sides.
[0069] Specifically, the rail frame 2 is a cubic structure, and can also be a prismatic structure with two vertical sides, which is not limited herein.
[0070] In this embodiment, the rail frame 2 is a cubic structure, and the end face is a square, and two end faces are provided in the center of each side.
[0071] The first slide frame 3 and the second slide frame 4 are both provided with two, respectively provided on the opposite two groups of rail frames 2, and are in sliding connection with the corresponding rail frames 2 along the slide rail 7.
[0072] The third slide frame 5 is in sliding connection with the first slide frame 3, the third slide frame 5 is parallel to the second slide frame 4, and the end face of the second slide frame 4 is flush with the end face of the third slide frame 5.
[0073] As a preferred embodiment, as shown in Figure 2 The first slide frame 3 includes a sliding part 9 and a frame body 10, and the frame body 10 is in fixed connection with the sliding part 9.
[0074] Specifically, the frame body 10 and the sliding part 9 are in fixed connection as an integral structure.
[0075] The frame body 10 has at least one end face parallel to the side of the rail frame 2, and the sliding part 9 is provided with two, respectively fixedly connected to the two ends of the frame body 10, and the two sliding parts 9 are respectively in sliding connection with two parallel and opposite rail frames 2.
[0076] Specifically, the frame body 10 has the same structure as the rail frame 2.
[0077] As a preferred embodiment, the sliding part 9 includes an L-shaped plate body structure and a fixed bolt 6, and the L-shaped plate body has at least one sliding protrusion 11 matched with the slide rail 7.
[0078] Specifically, the two plate faces of the L-shaped plate body are both provided with the sliding protrusion 11, and the sliding protrusion 11 traverses the entire plate face, specifically a cubic structure, to ensure the stability of sliding and reduce the shaking of the slide frame during use.
[0079] Specifically, as shown in Figure 1 The fixed bolt 6 is provided on the plate body side of the L-shaped plate body in contact with the top end face of the rail frame 2, and the fixed bolt 6 penetrates the corresponding plate face of the L-shaped plate body, and after adjusting the position of the first slide frame 3, the first slide frame 3 is fixed through the fixed bolt 6.
[0080] As a preferred embodiment, as shown inFigure 5 As shown in the figure, the second sliding frame 4 comprises a sliding plate 13 and a fixed plate 12 fixed on the end face of the sliding plate 13;
[0081] Specifically, the fixed plate 12 is fixed on the sliding plate 13 by embedding through the bolt body, and the end faces of the two ends of the sliding plate 13 are respectively connected with the sliding connection of the two parallel and opposite rail frames 2.
[0082] The end face of the sliding plate 13 is provided with a sliding protrusion 11 which is matched with the slide rail 7 on the corresponding rail frame 2, and the end face of the sliding plate 13 is also provided with a fixed bolt 6 penetrating the plate face.
[0083] The sliding plate 13 is also provided with a second sliding part 14 perpendicular to the plate body at the joint with the rail frame 2, and the side of the second sliding part 14 connected with the rail frame 2 is provided with the sliding protrusion 11 matched with the rail frame 2.
[0084] Specifically, the sliding protrusion 11 is a cubic structure which transversely penetrates the sliding plate 13.
[0085] Specifically, the fixed bolt 6 can be arranged at the sliding protrusion 11 of the end face of the sliding plate 13, penetrating the sliding protrusion 11, and one end of the fixed bolt 6 is arranged in the slide rail 7.
[0086] As a preferred embodiment, the third sliding frame 5 is arranged between the two second sliding frames 4.
[0087] As a preferred embodiment, as Figure 4 As shown in the figure, the third sliding frame 5 comprises a bearing part 15 and an end part 16, and the end face of the bearing part 15 is flush with the end face of the third sliding frame 5;
[0088] The frame body 10 is provided with the slide rail 7 on at least two adjacent sides, the end part 16 is provided with the sliding protrusion 11 matched with the slide rail 7 on the frame body 10, and the end part 16 is also provided with the fixed bolt 6.
[0089] Specifically, the fixed bolt 6 penetrates the end part 16;
[0090] Specifically, the fixed bolt 6 is arranged at the corresponding sliding protrusion 11, penetrates the sliding protrusion 11, and is arranged in the slide rail 7 of the frame body 10.
[0091] In this embodiment, the bearing part 15 and the end part 16 constitute a right-angled arched structure.
[0092] After adjusting the first sliding frame 3, the third sliding frame 5 with appropriate size is placed on the first sliding frame 3, and the positions of the second sliding frame 4 and the third sliding frame 5 are adjusted again.
[0093] In use, the PCB board is placed on the end face formed by the second sliding frame 4 and the third sliding frame 5, the positions of the sliding frames are adjusted, and then the heat insulation rubber pad and the heat insulation cloth are covered, and then high and low temperature test is carried out.
[0094] Embodiment 3
[0095] Embodiment 3 of the utility model discloses a rear circuit board testing device, as shown in the drawing, the device includes support 1, rail frame 2, first sliding frame 3, second sliding frame 4 and third sliding frame 5. Figure 1
[0096] The support 1 bottom is equipped with support 8.
[0097] The rail frame 2 is equipped with four, the rail frame 2 is equipped with slide rail 7, and two two adjacent rail frames 2 are vertically connected with a support 1 respectively, which constitutes a square sliding track in the same plane and includes two groups of mutually perpendicular square sliding tracks.
[0098] As a preferred embodiment, the rail frame 2 is equipped with the slide rail 7 at least on two adjacent sides.
[0099] Specifically, the rail frame 2 is a cubic structure, and can also adopt a prismatic structure vertically on two sides, which is not limited here.
[0100] In this embodiment, the rail frame 2 is a cubic structure as a whole, the end face is a square, and the slide rail 7 is arranged at the center of the side face.
[0101] The first sliding frame 3 and the second sliding frame 4 are both equipped with two and are arranged on the opposite two groups of rail frames 2 respectively and are slidably connected with the corresponding rail frame 2 along the slide rail 7.
[0102] The third sliding frame 5 is slidably connected with the first sliding frame 3, the third sliding frame 5 is parallel to the second sliding frame 4, and the end face of the second sliding frame 4 is flush with the third sliding frame 5.
[0103] As a preferred embodiment, as shown in the drawing, the first sliding frame 3 includes a sliding part 9 and a frame body 10, and the frame body 10 is fixedly connected with the sliding part 9. Figure 2
[0104] Specifically, the frame body 10 and the sliding part 9 are fixedly connected as an integral structure.
[0105] The frame body 10 is parallel to the face where the rail frame 2 is located at least on one end face, the sliding part 9 is equipped with two and is fixedly connected at two ends of the frame body 10 respectively, and the two sliding parts 9 are slidably connected with two parallel and opposite rail frames 2 respectively.
[0106] Specifically, the frame body 10 has the same structure as the rail frame 2.
[0107] As a preferred embodiment, the sliding part 9 comprises an L-shaped plate body structure and a fixing bolt 6, and the L-shaped plate body has at least one sliding protrusion 11 adapted to the sliding rail 7.
[0108] Specifically, both plate surfaces of the L-shaped plate body are provided with the sliding protrusion 11, which traverses the entire plate surface and has a cubic structure, thereby ensuring the stability of sliding and reducing the shaking of the sliding frame during use.
[0109] Specifically, as shown in FIG. Figure 1 The fixing bolt 6 is arranged on the plate body side of the top end surface of the L-shaped plate body in contact with the rail frame 2, and penetrates the corresponding plate surface of the L-shaped plate body. After adjusting the position of the first sliding frame 3, the first sliding frame 3 is fixed by the fixing bolt 6.
[0110] As a preferred embodiment, as shown in FIG. Figure 3 The second sliding frame 4 comprises a sliding plate 13 and a fixing plate 12, and the fixing plate 12 is fixed on the end surface of the sliding plate 13.
[0111] Specifically, the fixing plate 12 is fixed on the sliding plate 13 by a bolt embedded through the plate body, and the end surfaces of both ends of the sliding plate 13 are respectively connected with two parallel and opposite rail frames 2.
[0112] The end surface of the sliding plate 13 is provided with a sliding protrusion 11 adapted to the sliding rail 7 on the corresponding rail frame 2, and the end surface of the sliding plate 13 is also provided with a fixing bolt 6 penetrating the plate surface.
[0113] Specifically, the sliding protrusion 11 has a cubic structure and traverses the sliding plate 13.
[0114] Specifically, the fixing bolt 6 can be arranged at the sliding protrusion 11 of the end surface of the sliding plate 13 and penetrate the sliding protrusion 11, and one end of the fixing bolt 6 is arranged in the sliding rail 7.
[0115] As a preferred embodiment, the third sliding frame 5 is arranged between two second sliding frames 4.
[0116] As a preferred embodiment, as shown in FIG. Figure 6 The third sliding frame 5 comprises a bearing part 15 and an end part 16, and the end surface of the bearing part 15 is flush with the end surface of the third sliding frame 5.
[0117] The frame body 10 is provided with the slide rail 7 on at least two adjacent surfaces, the end portion 16 is provided with a slide protrusion 11 which is matched with the slide rail 7 on the frame body 10, and the end portion 16 is further provided with a fixing bolt 6.
[0118] Specifically, the fixing bolt 6 penetrates the end portion 16.
[0119] Specifically, the fixing bolt 6 is arranged at the position corresponding to the slide protrusion 11 and is arranged in the slide rail 7 of the frame body 10 through the slide protrusion 11.
[0120] As a preferred embodiment, the end portion 16 of the third slide frame 5 is movably connected with the bearing portion 15 through an extension rod.
[0121] Without replacing the third slide frame 5 of different sizes for multiple times, the positions of the first slide frame 3, the second slide frame 4 and the third slide frame 5 can be adjusted simultaneously.
[0122] In use, the PCB board is placed on the end surface formed by the second slide frame 4 and the third slide frame 5, the positions of the slide frames are adjusted, the heat insulation rubber pad and the heat insulation cloth are covered, and then the high and low temperature test is performed.
[0123] Embodiment 4
[0124] Embodiment 4 of the utility model discloses a rear circuit board testing device, as shown in the drawing, the device includes support 1, rail frame 2, first slide frame 3, second slide frame 4 and third slide frame 5. Figure 1
[0125] The support 1 is provided with a support 8 at the bottom.
[0126] The rail frame 2 is provided with four, the rail frame 2 is provided with a slide rail 7, and two adjacent rail frames 2 are vertically connected with one support 1 respectively to form two groups of square slide rails which are perpendicular to each other and located in the same plane.
[0127] As a preferred embodiment, the rail frame 2 is provided with the slide rail 7 on at least two adjacent surfaces.
[0128] Specifically, the rail frame 2 is a cubic structure, and can also adopt a prismatic structure which is perpendicular to two surfaces, which is not limited here.
[0129] In the embodiment, the rail frame 2 is a cubic structure as a whole, the end surface is a square, and the slide rail 7 is arranged at the center of each side surface.
[0130] The first slide frame 3 and the second slide frame 4 are both provided with two and are arranged on the corresponding two groups of rail frames 2 respectively and are movably connected with the corresponding rail frames 2 along the slide rail 7.
[0131] The third sliding frame 5 is in sliding connection with the first sliding frame 3, the third sliding frame 5 is parallel to the second sliding frame 4, and the second sliding frame 4 is flush with the end surface of the third sliding frame 5.
[0132] As a preferred embodiment, as shown in Figure 2 The first sliding frame 3 comprises a sliding part 9 and a frame body 10, and the frame body 10 is fixedly connected with the sliding part 9.
[0133] Specifically, the frame body 10 and the sliding part 9 are fixedly connected as an integrated structure.
[0134] The frame body 10 has at least one end surface parallel to the surface where the rail frame 2 is located, and the sliding part 9 is provided with two sliding parts 9 fixedly connected at both ends of the frame body 10, respectively.
[0135] Specifically, the frame body 10 has the same structure as the rail frame 2.
[0136] As a preferred embodiment, the sliding part 9 comprises an L-shaped plate body structure and a fixing bolt 6, and the L-shaped plate body has at least one sliding protrusion 11 adapted to the sliding rail 7.
[0137] Specifically, the L-shaped plate body has two plate surfaces each provided with a sliding protrusion 11, and the sliding protrusion 11 traverses the entire plate surface, specifically in a cubic structure, to ensure the stability of sliding and reduce the shaking of the sliding frame during use.
[0138] Specifically, as shown in Figure 1 The fixing bolt 6 is arranged on the plate body side of the top end surface of the L-shaped plate body in contact with the rail frame 2, and the fixing bolt 6 penetrates the corresponding plate surface of the L-shaped plate body, and after adjusting the position of the first sliding frame 3, the first sliding frame 3 is fixed through the fixing bolt 6.
[0139] As a preferred embodiment, as shown in Figure 5 The second sliding frame 4 comprises a sliding plate 13 and a fixed plate 12, and the fixed plate 12 is fixed on the end surface of the sliding plate 13.
[0140] Specifically, the fixed plate 12 is fixed on the sliding plate 13 through a bolt embedded in the plate body, and the end surfaces at both ends of the sliding plate 13 are in sliding connection with two parallel and opposite rail frames 2, respectively.
[0141] The end surface of the sliding plate 13 is provided with a sliding protrusion 11 adapted to the sliding rail 7 on the corresponding rail frame 2, and the end surface of the sliding plate 13 is also provided with a fixing bolt 6 penetrating the plate surface.
[0142] The sliding plate 13 is provided with a second sliding part 14 perpendicular to the plate body at the joint with the rail frame 2, and the side of the second sliding part 14 jointing with the rail frame 2 is provided with the sliding protrusion 11 adapted to the rail frame 2.
[0143] Specifically, the sliding protrusion 11 is a cuboid structure transversely penetrating the sliding plate 13.
[0144] Specifically, the fixing bolt 6 can be arranged at the sliding protrusion 11 of the end surface of the sliding plate 13 and penetrate the sliding protrusion 11, with one end of the fixing bolt 6 arranged in the sliding rail 7.
[0145] As a preferred embodiment, the third sliding frame 5 is arranged between two second sliding frames 4.
[0146] As a preferred embodiment, as shown in the drawings, the third sliding frame 5 comprises a bearing part 15 and an end part 16, and the end surface of the bearing part 15 is flush with the end surface of the third sliding frame 5. Figure 6
[0147] The frame body 10 is provided with the sliding rail 7 on at least two adjacent surfaces, the end part 16 is provided with the sliding protrusion 11 adapted to the sliding rail 7 on the frame body 10, and the end part 16 is further provided with the fixing bolt 6.
[0148] Specifically, the fixing bolt 6 penetrates the end part 16.
[0149] Specifically, the fixing bolt 6 is arranged at the position corresponding to the sliding protrusion 11 and penetrates the sliding protrusion 11 to be arranged in the sliding rail 7 of the frame body 10.
[0150] As a preferred embodiment, the end part 16 of the third sliding frame 5 is movably connected to the bearing part 15 through an extension rod.
[0151] In use, the PCB board is placed on the end surface formed by the second sliding frame 4 and the third sliding frame 5, the positions of the sliding frames are adjusted, then the heat insulation rubber pad and the heat insulation cloth are covered, and then the high and low temperature test is performed.
[0152] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation or direct or indirect application in other related technical fields based on the content of the present application is also included in the patent protection range of the present application.
Claims
1. A back end circuit board testing apparatus characterized by comprising: The support, the rail frame, the first sliding frame, the second sliding frame and the third sliding frame are included. Four rail frames are arranged, and each of the rail frames is provided with a sliding rail. The first sliding frame and the second sliding frame are arranged on the opposite rail frames, and are slidably connected to the corresponding rail frames along the sliding rails. The third sliding frame is slidably connected to the first sliding frame, and is parallel to the second sliding frame.
2. The back end circuit board testing apparatus according to claim 1, characterized by The rail frame is provided with the sliding rail on at least two opposite sides.
3. The back end circuit board testing apparatus according to claim 2, characterized by The first sliding frame includes a sliding part and a frame body, and the frame body is fixedly connected to the sliding part.
4. The back end circuit board testing apparatus according to claim 3, characterized by The sliding part includes an L-shaped plate structure and a fixing bolt, and at least one sliding protrusion of the L-shaped plate structure is adapted to the sliding rail.
5. The back end circuit board testing apparatus according to claim 2, characterized by The second sliding frame includes a sliding plate and a fixing plate, and the fixing plate is fixed to the end face of the sliding plate.
6. The back end circuit board testing apparatus according to claim 5, wherein The end face of the sliding plate is provided with a sliding protrusion adapted to the sliding rail of the corresponding rail frame.
7. The back end circuit board testing apparatus according to claim 6, wherein The sliding plate is provided with a fixing bolt penetrating through the end face.
8. The back end circuit board testing apparatus of claim 2, wherein The sliding plate is provided with a second sliding part perpendicular to the plate body at the joint with the rail frame.
9. The back end circuit board testing apparatus of claim 3, wherein The third sliding frame is arranged between the two second sliding frames. The third sliding frame includes a bearing part and an end part, and the end face of the bearing part is flush with the end face of the third sliding frame.
10. The back end circuit board testing apparatus according to claim 9, wherein The end part is provided with a sliding protrusion adapted to the sliding rail of the frame body, and is further provided with a fixing bolt. The end part of the third sliding frame is movably connected to the bearing part through an extension rod.