Circuit board aging test equipment

Abstract

The utility model discloses circuit board aging test equipment, which relates to the technical field of aging test equipment and comprises a test frame assembly and a clamp assembly, the test frame assembly is composed of a frame, universal wheels and a partition plate, and the clamp assembly is used for limiting a circuit board. The clamp assembly comprises a limiting supporting unit, a pressing unit and a linkage locking unit. The limiting supporting unit is used for supporting and limiting the edges of the two sides of the circuit board so that the circuit board can be horizontally placed. The pressing unit is used for pressing and limiting the edges of the two ends of the circuit board; the linkage locking unit is used for providing power for pressing operation of the multiple sets of pressing units. According to the utility model, the circuit board can be limited and locked through the clamp assembly, the circuit board to be aged and tested can be kept in a stable and immobile state when the test frame assembly is transferred, damage caused by shaking and collision of the circuit board is effectively avoided, and the clamp assembly can be adjusted according to the size and the number of the circuit board, and is flexible to use and high in applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of aging test equipment, specifically a circuit board aging test equipment. Background Technology

[0002] Circuit board aging tests are conducted to verify the performance stability of circuit boards under long-term use or specific environments, and to identify potential problems in advance.

[0003] An aging test chamber is a place specifically used for aging tests on products. It can simulate various environmental conditions, such as high temperature, low temperature, humidity, and light, to conduct aging tests on electronic and electrical products, automotive parts, rubber and plastic parts, etc., in order to accelerate the aging process of products, discover potential defects in advance, and assess the reliability and service life of products.

[0004] When placing circuit boards in an aging test chamber for aging tests, an aging test rack is required. Aging test racks are usually made of metal materials, such as aluminum alloy or steel, to form a stable frame. They often adopt a layered structure, with each layer holding different test products, increasing test capacity and improving test efficiency.

[0005] Most existing aging test racks do not have circuit board limiting structures. The circuit boards are placed directly on the rack partitions. Because the electronic components on the surface of the circuit boards are of varying heights, the placement of the circuit boards is not stable. When the circuit boards are transferred to the aging test chamber through the aging test rack, they are prone to shaking and collision. This phenomenon can lead to damage to the circuit boards, thereby affecting the accuracy of the aging test data. Based on this, a circuit board aging test device is provided. Utility Model Content

[0006] The purpose of this invention is to provide a circuit board aging test device in order to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a circuit board aging test device, comprising a test frame assembly consisting of a frame, casters, and partitions. The casters are arranged in a matrix and fixed to the bottom of the frame. The partitions are arranged in a plurality of positions and are arranged vertically and fixed to the inner side of the frame. The partitions are provided with clamping assemblies, which are used to limit the circuit board.

[0008] The clamping assembly includes a limiting support unit, a clamping unit, and a linkage locking unit;

[0009] The limiting support unit is used to support and limit the two sides of the circuit board, thereby realizing the horizontal placement of the circuit board;

[0010] The clamping unit is used to clamp and limit the edges at both ends of the circuit board;

[0011] The linkage locking unit is used to provide power for the clamping operation of multiple clamping units.

[0012] As a further embodiment of this utility model: the limiting support unit includes an inverted concave support frame, a guide wheel, and a first locking bolt;

[0013] The guide wheel is rotatably connected to the bottom of the vertical part of one end of the concave support frame, and the first locking bolt is threadedly connected to the vertical part of the other end of the concave support frame and completely penetrates the vertical part of the other end;

[0014] The rear end of the partition is provided with a rail groove, the inverted concave support frame is sleeved on the outer side of the top of the partition, the guide wheel is limited and rolled to the inner side of the rail groove, and the first locking bolt screw is pressed against the front end face of the partition to fix the position of the inverted concave support frame.

[0015] Two adjacent concave support frames are used to support the two sides of the circuit board and to prevent the components at the bottom of the circuit board from contacting the partition.

[0016] As a further embodiment of this utility model: the clamping unit includes an inverted concave positioning frame, an adjusting guide groove, an L-shaped limiting seat, a second locking bolt, a T-shaped pressure seat, a W-shaped spring sheet, a fixing block, and a telescopic groove;

[0017] The concave positioning frame is fixed to the top of the concave support frame. The adjusting guide groove is opened on the top of the concave positioning frame. The L-shaped limiting seat is slidably connected between the concave positioning frame and the guide wheel and protrudes to the outside of both sides of the concave positioning frame. The L-shaped limiting seat is close to the rear end of the concave positioning frame. The second locking bolt passes through the adjusting guide groove from the top of the concave positioning frame. The L-shaped limiting seat and the upper surface of the concave support frame are tightly fitted. The second locking bolt is threadedly connected to the L-shaped limiting seat.

[0018] The fixing block is fixed to the inner side of the inverted concave positioning frame near the front end and is fixedly connected to the inverted concave support frame. The telescopic groove is opened on the upper surface of the inverted concave support frame and completely penetrates the inverted concave support frame. The vertical part of the T-shaped pressure seat penetrates the telescopic groove, and the horizontal part of the T-shaped pressure seat penetrates the outer two sides of the inverted concave positioning frame. The W-shaped spring is distributed between the fixing block and the T-shaped pressure seat and is fixedly connected to the fixing block and the T-shaped pressure seat respectively. The W-shaped spring is used to provide the T-shaped pressure seat with a thrust towards the front end. The T-shaped pressure seats on the two inverted concave support frames are used to limit the front edge of the circuit board.

[0019] The circuit board is moved by the T-shaped pressure seat, causing the rear edge of the circuit board to be engaged inside the L-shaped limiting seat, thereby achieving the limiting and clamping of the circuit board.

[0020] As a further embodiment of this utility model: the linkage locking unit includes a fixed guide post, a push plate, and a clamping bolt;

[0021] A straight groove is provided at the top of the partition near the front end, and the vertical part of the T-shaped pressure seat passes through the straight groove to the bottom of the partition.

[0022] The fixed guide posts are symmetrically fixed to the rear end of the vertical part of the partition, and the push plate is slidably connected to the outside of the two fixed guide posts and is in contact with the front end face of the vertical part of the multiple T-shaped pressure seats;

[0023] The clamping bolt is threaded to the front end of the vertical part of the partition and passes through the vertical part, and fits tightly with the push plate. By tightening the clamping bolt, it pushes the push plate to squeeze multiple T-shaped pressure seats to move synchronously, which provides power for clamping multiple circuit boards.

[0024] As a further embodiment of this utility model: a back plate is fixed on the inner side of the frame between two adjacent partitions, and the back plate is distributed at the rear end of the partitions;

[0025] The back plate has several mounting ports arranged in a matrix, and four screw holes arranged in a matrix are provided around each mounting port.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] By setting up a clamping assembly, the circuit board can be limited and locked. When the test frame assembly is transferred, the circuit board to be aged can remain stable and stationary, effectively avoiding damage caused by the circuit board shaking or collision. In addition, the clamping assembly can be adjusted according to the size and number of circuit boards, making it flexible to use and highly applicable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a sectional view of the side structure of the frame of this utility model;

[0030] Figure 3 This is a structural distribution diagram of the clamp assembly and partition of this utility model;

[0031] Figure 4 This is a bottom view of the fixture assembly and partition of this utility model in their combined state;

[0032] Figure 5 This is a schematic diagram showing the disassembled clamp assembly and partition of this utility model;

[0033] Figure 6 This is a disassembled schematic diagram of the clamp assembly of this utility model.

[0034] In the diagram: 1. Test frame assembly; 101. Frame; 102. Casters; 103. Partition; 104. Rail groove; 105. Straight groove; 106. Back plate; 107. Mounting port; 108. Screw hole; 2. Fixture assembly; 201. Inverted concave support frame; 202. Guide wheel; 203. First locking bolt; 204. Inverted concave positioning frame; 205. Adjusting guide groove; 206. L-shaped limit seat; 207. Second locking bolt; 208. T-shaped pressure seat; 209. W-shaped spring; 210. Fixing block; 211. Telescopic groove; 212. Fixing guide post; 213. Push plate; 214. Pressure bolt. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figures 1-6 In this embodiment of the utility model, a circuit board aging test device includes a test frame assembly 1 consisting of a frame 101, casters 102, and partitions 103. Multiple casters 102 are arranged in a matrix and fixed to the bottom of the frame 101. Multiple partitions 103 are arranged and arranged vertically and fixed to the inner side of the frame 101. A clamp assembly 2 is provided on the partition 103, and the clamp assembly 2 is used to limit the circuit board.

[0037] The clamp assembly 2 includes a limit support unit, a clamping unit, and a linkage locking unit;

[0038] The limiting support unit is used to support and limit the two sides of the circuit board, thereby enabling the circuit board to be placed horizontally.

[0039] The clamping unit is used to clamp and limit the edges at both ends of the circuit board;

[0040] The linkage locking unit is used to provide power for the clamping operation of multiple clamping units;

[0041] The limiting support unit includes an inverted concave support frame 201, a guide wheel 202, and a first locking bolt 203;

[0042] The guide wheel 202 is rotatably connected to the bottom of the vertical part of one end of the concave support frame 201, and the first locking bolt 203 is threadedly connected to the vertical part of the other end of the concave support frame 201 and completely penetrates the vertical part of the other end;

[0043] The rear end of the partition 103 is provided with a rail groove 104, the inverted concave support frame 201 is sleeved on the outer side of the top of the partition 103, the guide wheel 202 is limited and rolled to the inner side of the rail groove 104, and the screw part of the first locking bolt 203 is pressed against the front end face of the partition 103 to fix the position of the inverted concave support frame 201.

[0044] Two adjacent concave support frames 201 are used to support the two side edges of the circuit board, so that the bottom components of the circuit board do not contact the partition 103.

[0045] The clamping unit includes an inverted concave positioning frame 204, an adjusting guide groove 205, an L-shaped limiting seat 206, a second locking bolt 207, a T-shaped pressure seat 208, a W-shaped spring sheet 209, a fixing block 210, and a telescopic groove 211;

[0046] The concave positioning frame 204 is fixed to the top of the concave support frame 201. The adjusting guide groove 205 is opened on the top of the concave positioning frame 204. The L-shaped limiting seat 206 is slidably connected between the concave positioning frame 204 and the guide wheel 202 and protrudes to the outside of both sides of the concave positioning frame 204. The L-shaped limiting seat 206 is close to the rear end of the concave positioning frame 204. The second locking bolt 207 passes through the adjusting guide groove 205 from the top of the concave positioning frame 204. The L-shaped limiting seat 206 is tightly fitted with the upper surface of the concave support frame 201. The second locking bolt 207 is threadedly connected to the L-shaped limiting seat 206.

[0047] The fixing block 210 is fixed to the inner side of the inverted concave positioning frame 204 near the front end and is fixedly connected to the inverted concave support frame 201. The telescopic groove 211 is opened on the upper surface of the inverted concave support frame 201 and completely penetrates the inverted concave support frame 201. The vertical part of the T-shaped pressure seat 208 penetrates the telescopic groove 211, and the horizontal part of the T-shaped pressure seat 208 penetrates the outer sides of the inverted concave positioning frame 204. The W-shaped spring piece 209 is distributed between the fixing block 210 and the T-shaped pressure seat 208 and is fixedly connected to the fixing block 210 and the T-shaped pressure seat 208 respectively. The W-shaped spring piece 209 is used to provide the T-shaped pressure seat 208 with a thrust towards the front end. The T-shaped pressure seats 208 on the two inverted concave support frames 201 are used to limit the front edge of the circuit board.

[0048] The T-shaped pressure seat 208 moves and pushes the circuit board so that the rear edge of the circuit board is inserted into the inner side of the L-shaped limiting seat 206 to achieve the limiting and clamping of the circuit board.

[0049] The linkage locking unit includes a fixed guide post 212, a push plate 213, and a clamping bolt 214;

[0050] A straight groove 105 is provided at the top of the partition 103 near the front end, and the vertical part of the T-shaped pressure seat 208 passes through the straight groove 105 to the bottom of the partition 103.

[0051] The fixed guide posts 212 are symmetrically fixed to the rear end of the vertical part of the partition 103, and the push plate 213 is slidably connected to the outside of the two fixed guide posts 212 and is in contact with the front end face of the vertical part of the multiple T-shaped pressure seats 208;

[0052] The clamping bolt 214 is threaded to the front end of the vertical part of the partition 103 and passes through the vertical part and is tightly fitted with the push plate 213. By tightening the clamping bolt 214, it pushes the push plate 213 to squeeze multiple T-shaped pressure seats 208 to move synchronously, which provides power for clamping multiple circuit boards.

[0053] In this embodiment, the operation method for placing the circuit board to be tested for aging using this test fixture assembly 1 is as follows:

[0054] First, take a set of clamping components 2, and fit the concave support frame 201 onto the upper surface of the partition plate 103, and make the guide wheel 202 snap into the inside of the rail groove 104 (it should be noted that during this process, the output part of the T-shaped pressure seat 208 passes through the support lower groove 105). Then, the concave support frame 201 can be pushed horizontally to adjust it to a suitable position. Then tighten the first locking bolt 203, thus realizing the assembly and fixation of the clamping components 2 and the partition plate 103.

[0055] Afterwards, other fixture components 2 can be installed according to the width of the circuit board to be aged and tested, with the width of the two adjacent concave positioning brackets 204 matching the width of the circuit board to be aged and tested.

[0056] Next, adjust the position of the L-shaped limit seat 206 according to the length of the circuit board to be aged. By loosening the second locking bolt 207, the L-shaped limit seat 206 can move along the trajectory of the adjustment guide groove 205. Finally, make the distance from the opening of the L-shaped limit seat 206 to the lateral part of the T-shaped pressure seat 208 match the length of the circuit board to be aged. At this time, tighten the second locking bolt 207.

[0057] Afterwards, the circuit board to be aged can be placed on two adjacent concave support frames 201. At this time, the bottom of the two sides of the circuit board is in contact with the upper surface of the concave support frame 201, and the sides of the two sides of the circuit board are flush with the sides of the concave positioning frame 204 (it should be noted that the side of the fixing block 210 is flush with the side of the concave positioning frame 204. The fixing block 210 can limit the two sides of the circuit board to prevent the two sides of the circuit board from being inserted into the inside of the concave positioning frame 204). The front edge of the circuit board is in contact with the transverse part of the T-shaped pressure seat 208, and the rear edge of the circuit board is close to the opening of the L-shaped limiting seat 206.

[0058] After multiple circuit boards to be tested for aging are placed on a partition 103, tighten the clamping bolt 214. The clamping bolt 214 moves and pushes the push plate 213. The push plate 213 pushes multiple T-shaped pressure seats 208 to move synchronously, thereby causing multiple circuit boards to be tested for aging to move synchronously and be inserted into the inner side of the L-shaped limit seat 206, thereby achieving synchronous locking of multiple circuit boards to be tested for aging.

[0059] In this way, when the test fixture component 1 is transferred later, the circuit board to be aged can remain stable and stationary, effectively avoiding damage caused by the circuit board shaking or collision.

[0060] When it is necessary to remove the circuit board after testing, simply loosen the clamping bolt 214 in the reverse direction. At this time, multiple T-shaped pressure seats 208 and push plates 213 will be reset under the elastic force of multiple W-shaped springs 209. After that, manually move the circuit board out of the L-shaped limit seat 206 and remove it.

[0061] Please refer to this carefully. Figures 1-2 A back plate 106 is fixed on the inner side of the frame 101 between two adjacent partitions 103, and the back plate 106 is distributed at the rear end of the partition 103.

[0062] The back plate 106 has several matrix-distributed mounting ports 107, and four matrix-distributed screw holes 108 are provided around the mounting ports 107.

[0063] In this embodiment: the mounting port 107 provides a mounting position for the power interface of the circuit board for testing, and the screw hole 108 provides a screw tightening position for the installation of the power interface. The number of power interfaces can be selectively installed according to the number of circuit boards that can be placed on a single partition 103. The above description is only a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A circuit board aging test device, comprising a test frame assembly (1) consisting of a frame (101), casters (102), and partitions (103), wherein multiple casters (102) are arranged in a matrix and fixed to the bottom of the frame (101), and multiple partitions (103) are arranged, the multiple partitions (103) being arranged vertically and fixed to the inner side of the frame (101), characterized in that, A clamp assembly (2) is provided on the partition (103), and the clamp assembly (2) is used to limit the circuit board; The clamp assembly (2) includes a limiting support unit, a clamping unit, and a linkage locking unit; The limiting support unit is used to support and limit the two sides of the circuit board, thereby realizing the horizontal placement of the circuit board; The clamping unit is used to clamp and limit the edges at both ends of the circuit board; The linkage locking unit is used to provide power for the clamping operation of multiple clamping units.

2. The circuit board aging test equipment according to claim 1, characterized in that, The limiting support unit includes an inverted concave support frame (201), a guide wheel (202), and a first locking bolt (203); The guide wheel (202) is rotatably connected to the bottom of the vertical part of one end of the concave support frame (201), and the first locking bolt (203) is threadedly connected to the vertical part of the other end of the concave support frame (201) and completely penetrates the vertical part of the other end; The rear end of the partition (103) is provided with a rail groove (104), the inverted concave support frame (201) is sleeved on the outer side of the top of the partition (103), the guide wheel (202) is limited and rolled to the inner side of the rail groove (104), and the screw part of the first locking bolt (203) is pressed against the front end face of the partition (103) to fix the position of the inverted concave support frame (201); Two adjacent concave support frames (201) are used to support the two sides of the circuit board and to prevent the bottom components of the circuit board from contacting the partition (103).

3. The circuit board aging test equipment according to claim 2, characterized in that, The clamping unit includes an inverted concave positioning frame (204), an adjusting guide groove (205), an L-shaped limiting seat (206), a second locking bolt (207), a T-shaped pressure seat (208), a W-shaped spring sheet (209), a fixing block (210), and a telescopic groove (211). The concave positioning frame (204) is fixed to the top of the concave support frame (201). The adjusting guide groove (205) is opened on the top of the concave positioning frame (204). The L-shaped limiting seat (206) is slidably connected between the concave positioning frame (204) and the guide wheel (202) and protrudes to the outside of both sides of the concave positioning frame (204). The L-shaped limiting seat (206) is close to the rear end of the concave positioning frame (204). The second locking bolt (207) passes through the adjusting guide groove (205) from the top of the concave positioning frame (204). The L-shaped limiting seat (206) is tightly fitted to the upper surface of the concave support frame (201). The second locking bolt (207) is threadedly connected to the L-shaped limiting seat (206). The fixing block (210) is fixed to the inside of the concave positioning frame (204) near the front end and is fixedly connected to the concave support frame (201). The telescopic groove (211) is opened on the upper surface of the concave support frame (201) and completely penetrates the concave support frame (201). The vertical part of the T-shaped pressure seat (208) penetrates the telescopic groove (211), and the horizontal part of the T-shaped pressure seat (208) penetrates the outer sides of the concave positioning frame (204). The W-shaped spring piece (209) is distributed between the fixing block (210) and the T-shaped pressure seat (208) and is fixedly connected to the fixing block (210) and the T-shaped pressure seat (208) respectively. The W-shaped spring piece (209) is used to provide the T-shaped pressure seat (208) with a thrust towards the front end. The T-shaped pressure seats (208) on the two concave support frames (201) are used to limit the front edge of the circuit board. The circuit board is moved and pushed by the T-shaped pressure seat (208) so that the rear edge of the circuit board is inserted into the L-shaped limiting seat (206) to achieve the limiting and pressing of the circuit board.

4. The circuit board aging test equipment according to claim 3, characterized in that, The linkage locking unit includes a fixed guide post (212), a push plate (213), and a clamping bolt (214). A straight groove (105) is provided at the top of the partition (103) near the front end, and the vertical part of the T-shaped pressure seat (208) passes through the straight groove (105) to the bottom of the partition (103); The fixed guide post (212) is symmetrically fixed to the rear end of the vertical part of the partition plate (103), and the push plate (213) is slidably connected to the outside of the two fixed guide posts (212) and is in contact with the front end face of the vertical part of the multiple T-shaped pressure seats (208); The clamping bolt (214) is threaded to the front end of the vertical part of the partition plate (103) and passes through the vertical part and is tightly fitted with the push plate (213). By tightening the clamping bolt (214), it pushes the push plate (213) to squeeze multiple T-shaped pressure seats (208) to move synchronously, which is used to provide power for clamping multiple circuit boards.

5. The circuit board burn-in test apparatus of claim 1 wherein, A back plate (106) is fixed inside the frame (101) between two adjacent partitions (103). The back plate (106) is distributed at the rear end of the partition (103). The back plate (106) has several matrix-distributed mounting ports (107), and four matrix-distributed screw holes (108) are provided around the mounting ports (107).

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