Welding strength test bench with fixing structure

Abstract

The utility model provides a kind of welding strength test bench with fixed structure, comprising: test table, the test table upper side is equipped with the fixed station for fixing DC power module, the lifting block lower end is fixed with the fixed part for the static tensile of the required test part of DC power module, the fixed station includes clamping jaw air cylinder, the left side, right side of the fixed block is slidably installed one for DC power module is clamped and fixed locking block, compared with prior art, the utility model has the beneficial effects as follows: by setting fixed station, it can fix the circuit board of different sizes DC power module, and then facilitate the welding strength test of different sizes DC power module, help to improve the use flexibility of equipment, by setting fixed part, different size module can be clamped and fixed, and pull test, its structure adds single, and it is convenient and flexible to respond to different size test module.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding strength testing equipment, and specifically relates to a welding strength testing table with a fixed structure. Background Technology

[0002] Existing DC power module welding strength testing benches suffer from poor compatibility, low operational efficiency, and insufficient reliability of test results. Because the fixed structure cannot accommodate DC power modules of various sizes and shapes, frequent adjustments or replacements of fixtures are required when changing test objects, increasing operational complexity and time costs. Furthermore, an incompatible fixed structure may cause module displacement or uneven stress during testing, thus affecting the accuracy and consistency of welding strength test results.

[0003] To address the aforementioned issues, conventional solutions include equipping each module with a dedicated fixture to ensure compatibility, or employing adjustable fixing devices to improve compatibility. However, these methods have certain drawbacks: while dedicated fixtures can guarantee testing accuracy, they increase equipment costs and storage space requirements, and the fixture switching process is time-consuming; while adjustable fixing devices improve adaptability, in some cases improper adjustment may lead to poor fixing effects, thus affecting test stability. Therefore, we aim to design a welding strength testing bench with a novel structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a welding strength testing bench with a fixed structure to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a welding strength testing platform with a fixed structure, comprising: a testing platform, a fixing platform for fixing a DC power module is installed on the upper side of the testing platform, the testing platform includes a base for controlling lifting and displaying test information, a lifting frame is provided on the upper side of the rear end of the base, a lifting block is movably installed on the front side of the lifting frame, and a fixing component for statically stretching the part of the DC power module to be tested is fixed at the lower end of the lifting block; The fixing platform includes a gripper cylinder, and a fixing block is provided on the upper side of the gripper cylinder. A locking block for clamping and fixing the DC power module is slidably installed on the left and right sides of the fixing block. In actual use, some electronic components of the DC power module need to be soldered onto the circuit board. The DC power module is often prone to collisions during use, and its welding strength determines the service life of the DC power module. The two locking blocks can fix the circuit board, thereby facilitating the fixing component to perform tensile testing on the welding strength of the electronic components to be tested.

[0006] In a preferred embodiment, the fixing member includes a connecting frame, the upper end of which is fixedly connected to the lower end of the lifting block, and the middle of the lower end of the connecting frame is fixedly connected to the upper end of the fixing rod.

[0007] In a preferred embodiment, the lower end of the fixing rod is rotatably connected to the middle of the upper surface of the mounting plate, and the axis of the mounting plate is collinear with the axis of the fixing rod.

[0008] In a preferred embodiment, a slide rail is fixed on the lower surface of the mounting plate in the left-right direction, and a track groove is provided on the slide rail. Two locking claws with an axisymmetric structure are slidably mounted on the lower left and right sides of the mounting plate via the slide rail. The upper side of the two locking claws is connected to an adjusting screw by nuts with opposite screw directions to adjust the distance between the two locking claws. By adjusting the distance between the two locking claws by adjusting the screw, the electronic components to be tested can be locked and fixed.

[0009] As a preferred embodiment, a boss is provided on the inner side of the lower end of the locking claw, and a miniature pressure sensor is embedded on the upper side of the boss. In actual use, the miniature pressure sensor is small in size and can be inserted into the lower part of the electronic component after welding. After the electronic component is welded to the circuit board, there is often a certain gap between them.

[0010] In a preferred embodiment, the two locking blocks have the same structure and size and are arranged in an axisymmetric structure. The inner end of the locking block is provided with a relief groove, and the top of the relief groove is provided with a base plate. The width of the base plate in the front-back direction is greater than the width of the locking block in the front-back direction.

[0011] In a preferred embodiment, the upper front and rear sides of the locking block are respectively provided with cantilever arms, and each cantilever arm is threaded with an abutment screw at its end. Each abutment screw has a rubber block at its lower end for abutting and fixing with the DC power module.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting a fixed platform, the control of the gripper cylinder to retract the two locking blocks, making them continuously approach the circuit board until the inner part of the two locking blocks is firmly abutted against the two sides of the circuit board. Then, multiple abutment screws are manually turned so that the rubber block at the lower end abuts against the upper side of the circuit board, thereby fixing the circuit board. It can fix the circuit boards of DC power modules of different sizes, which facilitates the welding strength test of DC power modules of different sizes and helps to improve the flexibility of equipment use.

[0013] 2. By setting fasteners, modules of different sizes can be clamped and fixed, and pulled for testing. Its simple structure makes it convenient and flexible to deal with test modules of different sizes. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a welding strength testing platform with a fixed structure according to the present invention.

[0016] Figure 2 This is a schematic diagram of the fixed platform structure of a welding strength testing table with a fixed structure according to the present invention.

[0017] Figure 3 This is a schematic diagram of the fixing structure of a welding strength testing table with a fixed structure according to the present invention.

[0018] Figure 4 This is a schematic diagram of the locking claw structure of a welding strength testing bench with a fixed structure according to the present invention.

[0019] In the diagram, 100-test stand, 110-base, 120-lifting frame, 130-lifting block, 140-fixing component one, 141-connecting frame, 142-fixing rod, 143-mounting plate, 144-locking claw; 200-Fixed platform, 210-Gripper cylinder, 220-Fixed block, 230-Locking block, 231-Base plate, 232-Cantilever, 233-Abutting screw. Detailed Implementation

[0020] 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.

[0021] As the first embodiment of this utility model: Please see Figures 1 to 4A welding strength testing bench with a fixed structure includes: a testing bench 100, a fixing platform 200 for fixing a DC power module is installed on the upper side of the testing bench 100, the testing bench 100 includes a base 110 for controlling lifting and displaying test information, a lifting frame 120 is provided on the upper rear side of the base 110, a lifting block 130 is movably installed on the front side of the lifting frame 120, and a fixing member for statically tensile testing the part of the DC power module to be tested is fixed at the lower end of the lifting block 130. The fixed stage 200 includes a gripper cylinder 210. A fixing block 220 is provided on the upper side of the gripper cylinder 210. A locking block 230 for clamping and fixing the DC power module is slidably installed on the left and right sides of the fixing block 220. In actual use, some electronic components of the DC power module need to be soldered onto the circuit board. The DC power module is often prone to collisions during use. Its welding strength determines the service life of the DC power module. The two locking blocks 230 can fix the circuit board, thereby facilitating the fixing component to perform tensile testing on the welding strength of the electronic components to be tested.

[0022] The fastener includes a connecting frame 141, the upper end of which is fixedly connected to the lower end of the lifting block 130, and the middle of the lower end of the connecting frame 141 is fixedly connected to the upper end of the fixing rod 142.

[0023] The lower end of the fixing rod 142 is connected to the middle of the upper surface of the mounting plate 143 with damping rotation, and the axis of the mounting plate 143 is collinear with the axis of the fixing rod 142.

[0024] The lower surface of the mounting plate 143 is fixed with a slide rail in the left-right direction, and a track groove is provided on it. On the lower left and right sides of the mounting plate 143, two locking claws 144 with an axisymmetric structure are slidably mounted through the slide rail. The upper side of the two locking claws 144 is connected to the adjusting screw by nuts with opposite screw directions to adjust the distance between the two locking claws 144. By adjusting the distance between the two locking claws 144 by adjusting the screw, the electronic components to be tested can be locked and fixed.

[0025] The lower inner side of the locking claw 144 is provided with a boss, and a miniature pressure sensor is embedded on the upper side of the boss. In actual use, the miniature pressure sensor is small in size and can be inserted into the lower part of the electronic component after welding. After the electronic component is welded to the circuit board, there is often a certain gap between them.

[0026] Specifically, in practical use, circuit boards of DC power modules of different sizes are placed between two locking blocks 230. Initially, the distance between the two locking blocks 230 is relatively large. Then, the gripper cylinder 210 is gradually controlled to close the two locking blocks 230, bringing them closer to the circuit board until the inner parts of the two locking blocks 230 are firmly abutted against the sides of the circuit board. Then, multiple abutment screws 233 are manually turned so that the rubber blocks at their lower ends abut against the upper side of the circuit board, thereby fixing the circuit board. This can fix circuit boards of DC power modules of different sizes, which facilitates the welding strength test of DC power modules of different sizes and helps to improve the flexibility of equipment use.

[0027] As a second embodiment of this utility model: Please see Figures 1 to 2 The two locking blocks 230 have the same structure and size and are arranged in an axially symmetrical structure. The inner end of the locking block 230 is provided with a relief groove, and the top of the relief groove is provided with a base plate 231. The width of the base plate 231 in the front-back direction is greater than the width of the locking block 230 in the front-back direction.

[0028] The upper front and rear sides of the locking block 230 are respectively provided with cantilever 232. Each cantilever 232 is threaded with an abutment screw 233 at its end. Each abutment screw 233 is provided with a rubber block at its lower end for abutting and fixing with the DC power module.

[0029] Based on the first embodiment described above, further, in actual use, since the lower surface of the mounting plate 143 is fixed with a slide rail in the left-right direction, and a track groove is provided on it, two locking claws 144 with an axisymmetric structure are slidably mounted on the lower left and right sides of the mounting plate 143 via the slide rail. The upper side of the two locking claws 144 is connected to the adjusting screw by nuts with opposite screw directions to adjust the distance between the two locking claws 144. After the adjusting lifting block 130 is lowered to the position of the required test module (here, the lifting frame 120 is equipped with a screw module to drive the lifting block 130), the mounting plate 143 is then rotated so that the two locking claws 144 are placed on both sides of the required test module (the lower end of the locking claw 144 is placed between the lower side of the required test module and the circuit board). (gap position), and then rotate the adjusting screw to bring the two locking claws closer to each other until the lower ends of the two locking claws 144 engage with the gap between the lower side of the test module and the circuit board. Then, start the lifting frame 120 to drive the lifting block 130 to move slowly upward. Since there is a boss on the inner side of the lower end of the locking claw 144, a miniature pressure sensor is embedded on the upper side of the boss. When stretched, the miniature pressure sensor abuts against the lower part of the required test module. The pulling force generated by it pulling the test module is the sum of the test values ​​of the two miniature pressure sensors. Record the test value after the test module is pulled to complete the welding strength test. The setting of the fastener can clamp and fix modules of different sizes and pull them for testing. Its structure is simple and convenient to flexibly deal with test modules of different sizes.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding strength testing bench with a fixed structure, comprising: A test bench (100) is characterized in that a fixing platform (200) for fixing a DC power module is installed on the upper side of the test bench (100), the test bench (100) includes a base (110) for controlling lifting and displaying test information, a lifting frame (120) is provided on the upper rear end of the base (110), a lifting block (130) is movably installed on the front side of the lifting frame (120), and a fixing member for statically stretching the part of the DC power module to be tested is fixed at the lower end of the lifting block (130); The fixed platform (200) includes a gripper cylinder (210), and a fixing block (220) is provided on the upper side of the gripper cylinder (210). A locking block (230) for clamping and fixing the DC power module is slidably installed on the left and right sides of the fixing block (220).

2. The welding strength testing bench with a fixed structure as described in claim 1, characterized in that: The fastener includes a connecting frame (141), the upper end of which is fixedly connected to the lower end of the lifting block (130), and the middle of the lower end of the connecting frame (141) is fixedly connected to the upper end of the fixing rod (142).

3. The welding strength testing bench with a fixed structure as described in claim 2, characterized in that: The lower end of the fixing rod (142) is connected to the middle of the upper surface of the mounting plate (143) with damping rotation, and the axis of the mounting plate (143) is collinear with the axis of the fixing rod (142).

4. The welding strength testing bench with a fixed structure as described in claim 3, characterized in that: The mounting plate (143) has a slide rail fixed on its lower surface in the left and right directions, and a track groove is provided on it. Two locking claws (144) with an axisymmetric structure are slidably installed on the lower left and right sides of the mounting plate (143) via the slide rail. The upper side of the two locking claws (144) is connected to the adjusting screw by nuts with opposite screw directions to adjust the distance between the two locking claws (144).

5. A welding strength testing bench with a fixed structure as described in claim 4, characterized in that: The locking claw (144) has a boss on the inner side of its lower end, and a miniature pressure sensor is embedded on the upper side of the boss.

6. The welding strength testing bench with a fixed structure as described in claim 1, characterized in that: The two locking blocks (230) have the same structure and size and are arranged in an axisymmetric structure. The inner end of the locking block (230) is provided with a relief groove, and the top of the relief groove is provided with a base plate (231). The width of the base plate (231) in the front-back direction is greater than the width of the locking block (230) in the front-back direction.

7. A welding strength testing bench with a fixed structure as described in claim 6, characterized in that: The upper front and rear sides of the locking block (230) are respectively provided with cantilever (232), and the end of each cantilever (232) is threaded with an abutment screw (233). The lower end of each abutment screw (233) is provided with a rubber block for abutting and fixing with the DC power module.

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