Tantalum block blank detection equipment for tantalum electrolytic capacitor production
By designing an automated tantalum block testing device, multiple simultaneous tests and regional pressure assessments of tantalum block blanks were achieved, solving the problems of insufficient individual testing and position adjustment in existing equipment, and improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHENHUA XINYUN ELECTRONICS CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing tantalum billet testing equipment can only test one tantalum billet at a time, and cannot automatically switch between testing different tantalum billets, nor can it adjust the position of the tantalum billets to improve the accuracy and efficiency of the testing results.
A testing device comprising a base, guide rail, lead screw, clamp, and hydraulic cylinder was designed. Through the cooperation of the motor and hydraulic cylinder, the automatic movement and position adjustment of tantalum blocks are realized. Combined with pressure sensor to record pressure, the device enables automatic detection of multiple tantalum blocks and pressure assessment of different areas.
It improves the efficiency and accuracy of tantalum block compressive strength testing, enabling simultaneous testing of multiple tantalum blocks and evaluation of compressive strength in different areas, reducing the need for manual operation.
Smart Images

Figure CN224189757U_ABST
Abstract
Description
A tantalum billet testing device for tantalum electrolytic capacitor production Technical Field
[0001] This utility model relates to the field of tantalum billet inspection and production technology, specifically a tantalum billet inspection device for tantalum electrolytic capacitor production. Background Technology
[0002] In the production process of tantalum electrolytic capacitors, the tantalum billet needs to undergo multiple processes, such as pressing, sintering, and energizing. These processes will apply certain mechanical stress to the tantalum billet. If the tantalum billet is not strong enough, it may deform or crack during this process. In addition, if the tantalum billet is not strong enough, the internal structure may be damaged due to mechanical stress during the use of the capacitor, which will affect the electrical performance of the capacitor. Therefore, after the tantalum powder is pressed into a tantalum billet, it is necessary to perform strength testing.
[0003] Currently, commonly used testing equipment mainly includes a testing platform. A pressure head is mounted on the top of the testing platform via a hydraulic cylinder. The output end of the hydraulic cylinder drives the pressure head to apply a certain pressure to the tantalum block. The strength of the tantalum block is evaluated by observing whether it deforms and cracks. However, this type of testing equipment can generally only perform strength testing on a single tantalum block. It is not conducive to automatically switching between different tantalum blocks for testing to improve the efficiency of tantalum block testing, nor is it conducive to automatically adjusting different areas on the tantalum block to be tested under the pressure head to improve the accuracy of the test results. Summary of the Invention
[0004] The purpose of this invention is to provide a tantalum billet testing device for the production of tantalum electrolytic capacitors, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A device for testing tantalum ingot blanks used in the production of tantalum electrolytic capacitors includes:
[0007] The base has a guide rail and a C-shaped frame fixed on its top surface, and a lead screw is rotatably connected inside the guide rail.
[0008] The testing platform, screwed together with the lead screw, is used to hold tantalum blocks;
[0009] A clamp is installed on the surface of the testing table. It can not only clamp and fix the tantalum block, but also clean the tantalum block debris from the surface of the testing table. The clamp includes a clamping plate one and a clamping plate two. An electric push rod that can drive the clamping plate one to move is fixed on the surface of the testing table. A lead screw two that can drive the clamping plate two to move is rotatably connected to the surface of the testing table.
[0010] The detection assembly is fixed to the bottom of the C-shaped frame. The detection assembly includes a hydraulic cylinder, a pressure sensor is installed at the output end of the hydraulic cylinder, and a pressure head is fixedly installed on the pressure sensing element side of the pressure sensor.
[0011] Furthermore, one end of the guide rail is fixed with a motor capable of driving the lead screw to rotate, and the bottom of the testing platform is fixed with a transmission seat that is screwed into the lead screw.
[0012] Furthermore, a touch screen is fixed to the outside of the shaped frame, and the touch screen is connected to the pressure sensor via a cable.
[0013] Furthermore, the fixture also includes a second motor fixed to the testing table, the output end of the second motor is fixed to a second lead screw, and both the first clamping plate and the second clamping plate slide against the surface of the testing table.
[0014] Furthermore, one end of the testing platform is fixed with two pipe fittings, and a sliding rod that is fixedly connected to the clamping plate is slidably connected inside the pipe fittings.
[0015] Furthermore, baffles are fixed on both sides of the top surface of the testing platform, and a rectangular hole is opened at one end of the testing platform.
[0016] Furthermore, a tray is fixed to the bottom surface of the testing platform, and a movable box is slidably inserted into the tray.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. By placing the tantalum block blank between clamping plate one and clamping plate two, the output end of the electric actuator extends to move clamping plate one towards the pressure head. Motor two drives screw two to rotate, causing clamping plate two, which is screwed to screw two, to move simultaneously towards the pressure head. Thus, clamping plate one and clamping plate two work together to move the tantalum block under the pressure head. The output end of the hydraulic cylinder extends to drive the pressure head to squeeze the tantalum block. The pressure sensor, a prior art component installed between the output end of the hydraulic cylinder and the pressure head, can record the pressure applied to the tantalum block, making it convenient for users to evaluate the compressive strength of the tantalum block after being subjected to different extrusion forces.
[0019] 2. The electric actuator and lead screw 2 drive clamping plates 1 and 2 to move left and right in the same direction, allowing the tantalum block to move left and right to adjust its position under the pressure head. The motor 1 drives lead screw 1 to rotate forward and backward, allowing the entire testing table and tantalum block to move back and forth to adjust their positions. This enables the tantalum block to adjust its position horizontally and vertically under the pressure head, facilitating the subsequent pressure head to compress different areas of the tantalum block surface and improving the accuracy of the tantalum block compressive strength test results.
[0020] 3. By designing the clamping plates (including two clamping plates of the same structure and size, clamping plate one and clamping plate two) to be longer, it is convenient to place multiple tantalum blocks for testing between the two clamping plates. With the cooperation of the testing table and the clamping plates moving with the tantalum blocks, it is convenient for the pressure head to perform compressive strength testing on tantalum blocks at different positions in sequence, which helps to improve the efficiency of tantalum block compressive strength testing. Attached Figure Description
[0021] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 is a schematic diagram of the base and detection component structure in this utility model;
[0023] Figure 3 is a schematic diagram of the overall external structure of the testing platform in this utility model;
[0024] Figure 4 is a schematic diagram of the structure in which clamping plate one and clamping plate two move toward the rectangular hole in this utility model.
[0025] Figure 5 is a schematic diagram of the structure of the tray, movable box, and testing platform in this utility model.
[0026] In the diagram: 100, base; 110, guide rail one; 111, lead screw one; 112, motor one; 120, C-shaped frame; 121, touch screen; 130, guide rail two; 200, testing table; 210, rectangular hole; 220, baffle; 230, transmission seat; 240, pipe fitting; 250, slide bar; 300, clamp; 310, clamping plate one; 320, clamping plate two; 330, electric actuator; 340, lead screw two; 350, guide shaft; 360, motor two; 400, testing component; 410, hydraulic cylinder; 420, pressure sensor; 430, pressure head; 500, tray; 510, movable box. Detailed Implementation
[0027] 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.
[0028] Example 1, please refer to Figures 1-5. In this embodiment of the present invention, a tantalum ingot blank testing device for tantalum electrolytic capacitor production includes a base 100. A guide rail 110 is fixedly connected to the top surface of the base 100. A lead screw 111 is rotatably connected inside the guide rail 110. A testing platform 200 is screwed to the outside of the lead screw 111. The testing platform 200 is slidably connected to the guide rail 110. A clamp 300 is provided on the top surface of the testing platform 200. The clamp 300 includes a clamping plate 310 and a clamping plate 320. An electric actuator 330 is fixed on the surface of the testing platform 200, which can drive the clamping plate 310 to move. A lead screw 340 is rotatably connected to the surface of the testing platform 200 and screwed into the clamping plate 320. A U-shaped frame 120 is fixedly connected to the top surface of the base 100. A testing component 400 is provided at the bottom of the U-shaped frame 120. The testing component 400 includes a hydraulic cylinder 410 fixed to the U-shaped frame 120. A pressure sensor 420 is installed at the output end of the hydraulic cylinder 410. A pressure head 430 is installed and fixed at the bottom of the pressure sensor 420.
[0029] Specifically, two clamping plates are slidably arranged on the surface of the testing table 200. These two clamping plates can not only adjust the tantalum block to be below the pressure head 430, but also adjust the lateral position of the tantalum block. By screwing the testing table 200 onto the base 100, the rotation of the lead screw 111 can drive the testing table 200 and the tantalum block to move longitudinally, thereby enabling the tantalum block on the testing table 200 to be adjusted laterally and longitudinally. This facilitates the pressure head 430 to perform compression testing on different areas of the tantalum block surface. By placing multiple tantalum blocks between the two clamping plates, during the process of adjusting the position of the tantalum blocks by the testing table 200 and the clamping plates, tantalum blocks at different positions can also be moved to the pressure head 430 for compressive strength testing. This improves the efficiency of tantalum block compressive strength testing and also helps to improve the accuracy of the compressive strength test results.
[0030] As shown in Figures 1 and 2, in this embodiment, a motor 112 that can drive the lead screw 111 to rotate is fixed at one end of the guide rail 110, and a transmission seat 230 that is screwed and connected to the lead screw 111 is fixed at the bottom of the detection table 200. The transmission seat 230 is slidably connected to the guide rail 110.
[0031] In this embodiment, when it is necessary for the detection table 200 to move longitudinally back and forth with the tantalum block, the motor 112 drives the lead screw 111 to rotate in both directions, thereby causing the transmission seat 230, which is screwed to the lead screw 111, to move longitudinally with the detection table 200, so that the tantalum block can move along its length direction and the pressure head 430 can press down on different areas of the tantalum block surface.
[0032] As shown in Figure 1, in this embodiment, a touch screen 121 is fixed on the outside of the U-shaped frame 120. The touch screen 121 is connected to the pressure sensor 420 via a cable. The pressure sensor 420 is used to record the pressure of the hydraulic cylinder 410 pressing the tantalum block through the pressure head 430. The pressure reading is transmitted to the touch screen 121 via a cable, so that the user can understand the pressure value applied to the tantalum block. This part is the prior art, and the specific working principle will not be described in detail.
[0033] In this embodiment, if the pressure head 430 crushes the tantalum block under a certain extrusion pressure, it indicates that the tantalum block's extrusion strength is unqualified; if the tantalum block remains intact under the extrusion pressure, it indicates that the tantalum block's extrusion strength is qualified.
[0034] As shown in Figure 4, in this embodiment, the fixture 300 also includes a second motor 360 embedded and fixed to the detection table 200. The output end of the second motor 360 is fixed to the second lead screw 340. The first clamping plate 310 and the second clamping plate 320 are both slidably attached to the surface of the detection table 200. The second lead screw 340 is screwed to the second clamping plate 320. The second lead screw 340 passes through the first clamping plate 310. A guide shaft 350 slides through the first clamping plate 310 and the second clamping plate 320. The guide shaft 350 is fixed to the surface of the detection table 200.
[0035] In this embodiment, when the clamping plate 320 needs to be moved by the lead screw 340, the output end of the motor 360 drives the lead screw 340 to rotate in both directions. The clamping plate 320, which is screwed to the lead screw 340, can move back and forth linearly along the guide shaft 350, thereby realizing the left and right movement of the clamping plate 320 on the surface of the detection table 200.
[0036] As shown in Figure 3, in this embodiment, two pipe fittings 240 are fixed at one end of the testing table 200. A sliding rod 250, which is fixedly connected to the clamping plate 310, is slidably connected inside the pipe fitting 240. When the clamping plate 310 is driven to move left and right by the electric push rod 330, the sliding rod 250 slides back and forth inside the pipe fitting 240, so that the clamping plate 310 can move stably on the surface of the testing table 200.
[0037] In Example 2, based on Example 1, during the process of the pressure head 430 extruding and testing the tantalum block, the unqualified tantalum block will break and generate debris. In order to automatically clean and collect the tantalum block debris on the surface of the testing table 200 and ensure that the surface of the testing table 200 is clean and tidy.
[0038] As shown in Figures 1, 4 and 5, in this embodiment, baffles 220 are fixed on both sides of the top surface of the testing platform 200, a rectangular hole 210 is opened through one end of the testing platform 200, and a tray 500 is fixedly connected to the bottom surface of the testing platform 200 near the rectangular hole 210. A movable box 510 is slidably inserted into the tray 500.
[0039] In this embodiment, after the tantalum block compression resistance test is completed, the tantalum block is removed. Tantalum block debris with substandard compression resistance will remain on the surface of the testing platform 200. At this time, the output end of the electric actuator 330 retracts, moving the clamping plate 310 to one side of the rectangular hole 210. Then, the lead screw 340 rotates, driving the clamping plate 320 to move to the other side of the rectangular hole 210. During the movement of the clamping plate 320, it pushes the debris from the surface of the testing platform 200 to the rectangular hole 210, where it falls into the movable box 510 for collection. Subsequently, simply pulling out the tray 500 from the movable box 510 will clean the tantalum block debris collected inside.
[0040] In this embodiment, referring to FIG1, the top surface of the base 100 is fixed with a guide rail 2 130 for the tray 500 to move with the testing table 200. During the movement of the testing table 200, the tray 500 can slide inside the guide rail 2 130.
[0041] In this embodiment, referring to FIG4, two baffles 220 fixed on the surface of the testing table 200 can block the two ends of the testing table 200. During the movement of the clamping plate, the two ends of the clamping plate slide against the corresponding baffles 220, thereby ensuring that when the clamping plate 220 pushes to clean the tantalum block debris on the surface of the testing table 200, the debris will not overflow from the two ends of the testing table 200.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for testing tantalum billet blanks used in the production of tantalum electrolytic capacitors, characterized in that, include: A base (100) has a guide rail (110) and a U-shaped frame (120) fixed on its top surface. A lead screw (111) is rotatably connected inside the guide rail (110). A testing table (200) is screwed to the lead screw (111) and is used to hold tantalum blocks. A clamp (300) is set on the surface of the testing table (200) and can not only clamp and fix the tantalum blocks but also clean the tantalum block debris on the surface of the testing table (200). The clamp (300) includes a clamping plate (310) and a clamping plate (320). The testing table (200) The surface is fixed with an electric push rod (330) that can drive the clamping plate one (310) to move. The surface of the detection table (200) is rotatably connected with a lead screw two (340) that can drive the clamping plate two (320) to move. The detection assembly (400) is fixed at the bottom of the frame (120). The detection assembly (400) includes a hydraulic cylinder (410). The output end of the hydraulic cylinder (410) is equipped with a pressure sensor (420). The pressure sensor (420) has a pressure head (430) fixed on the pressure sensing element side.
2. The tantalum billet testing equipment for tantalum electrolytic capacitor production according to claim 1, characterized in that, One end of the guide rail (110) is fixed with a motor (112) that can drive the lead screw (111) to rotate, and the bottom of the testing table (200) is fixed with a transmission seat (230) that is screwed into the lead screw (111).
3. The tantalum billet testing equipment for tantalum electrolytic capacitor production according to claim 1, characterized in that, A touch screen (121) is fixed on the outside of the shaped frame (120), and the touch screen (121) is connected to the pressure sensor via a cable.
4. The tantalum billet testing equipment for tantalum electrolytic capacitor production according to claim 1, characterized in that, The fixture (300) also includes a second motor (360) fixed to the testing table (200). The output end of the second motor (360) is fixed to a second lead screw (340). Both the first clamping plate (310) and the second clamping plate (320) slide against the surface of the testing table (200).
5. The tantalum billet testing equipment for tantalum electrolytic capacitor production according to claim 4, characterized in that, Two pipe fittings (240) are fixed at one end of the testing station (200), and a slide rod (250) that is fixedly connected to the clamping plate (310) is slidably connected inside the pipe fitting (240).
6. The tantalum billet testing equipment for tantalum electrolytic capacitor production according to claim 5, characterized in that, Both sides of the top surface of the testing platform (200) are fixed with baffles (220), and a rectangular hole (210) is opened at one end of the testing platform (200).
7. The tantalum billet testing equipment for tantalum electrolytic capacitor production according to claim 1 or 6, characterized in that, The bottom surface of the testing station (200) is fixed with a tray (500), and a movable box (510) is slidably inserted into the tray (500).