Chip inductor on-line electrical property test assembly

Abstract

The utility model discloses a chip inductor on-line electrical property test assembly, which is characterized in that the chip inductor on-line electrical property test assembly comprises a supporting assembly, a chip inductor electrical property test device is arranged at the upper end of the supporting assembly, and the chip inductor electrical property test device is fixed on the supporting assembly through an electrical property base; the chip inductor electrical property testing device comprises an electrical property testing platform and an electrical property sliding shaft assembly arranged at the lower end of the electrical property testing platform. According to the chip inductor on-line electrical test assembly of the utility model, the electrical sliding shaft assembly is arranged at the lower end of the electrical test platform, so that when the suction head turntable rotates above the electrical test platform, the suction head moves downwards, and when the chip inductor is in contact with the chip inductor electrical test position, the chip inductor drives the electrical test platform to move downwards; therefore, full contact between the chip inductor and the electrical property test piece is realized, buffering can be realized, soft contact is realized, and the chip inductor is prevented from being damaged or separated from the suction head due to overlarge acting force.

Description

Technical Field

[0001] This utility model relates to the field of surface mount inductor manufacturing, and specifically to an online electrical testing component for surface mount inductors used in packaging machines. Background Technology

[0002] After production, surface mount inductors need to undergo electrical testing to ensure a high pass rate. Due to their small size, electrical testing of surface mount inductors requires automated online equipment.

[0003] Chinese utility model patent CN217043550U, entitled "An Inductor Disc Testing Machine," discloses a disc testing machine for surface mount inductors and a testing mechanism for testing the inductor's properties. This testing mechanism includes a testing platform with test pins. The surface mount inductor is placed on the pins of the testing platform for testing. Because this testing mechanism lacks a buffer structure, the feed head points downwards, causing the surface mount inductor to directly impact the pins for testing. This hard contact can easily damage the surface mount inductor or the pins, causing some pins to deform and fail to make contact with the inductor, reducing testing accuracy. Furthermore, excessive contact force or insufficient suction can cause the surface mount inductor to detach from the feed head. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an online electrical testing component for surface mount inductors. This component solves the problem that existing surface mount inductor testing mechanisms lack a buffer structure, causing the inductor to directly impact the pins during testing due to the downward-facing pick-up head. This hard contact can easily damage the inductor or pins, leading to some pins deforming and failing to make contact with the inductor, thus reducing testing accuracy. Furthermore, the inductor can easily detach from the pick-up head due to excessive contact force or relatively weak suction.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] An online electrical testing assembly for surface mount inductors includes a support assembly, with a surface mount inductor electrical testing device disposed on the upper end of the support assembly. The surface mount inductor electrical testing device is fixed to the support assembly via an electrical base. The surface mount inductor electrical testing device includes an electrical testing platform and an electrical sliding shaft assembly disposed at the lower end of the electrical testing platform.

[0007] The electrical testing platform includes two sets of electrical test blocks arranged opposite each other. Each set of electrical test blocks includes two electrical test blocks arranged side by side. At the center of the electrical testing platform, the connection of the four electrical test blocks forms a surface mount inductor electrical test position.

[0008] The electrical test block includes a test piece holder, on which an electrical test piece is fixed. The electrical test piece is fixed to the test piece holder by electrical test piece fixing screws arranged at the front and rear, and the electrical test piece fixing screws are also used as terminals for wiring of the electrical test platform.

[0009] The electrical test piece has a "T" shaped structure with beveled surfaces on both sides of its front end. After the beveled surfaces of the four electrical test blocks are joined together, they form a square slot, which is the test position for the surface mount inductor.

[0010] The electrical sliding shaft assembly includes an electrical sliding shaft fixed to the lower end of the electrical testing platform, a return spring sleeved outside the electrical sliding shaft, and a bearing fixed to the electrical base. The lower end of the return spring is fixed inside the bearing, and the upper end contacts the bottom of the electrical testing platform.

[0011] The lower end of the bearing seat is provided with an electrically conductive sliding shaft through hole, and the electrically conductive sliding shaft slides up and down along the bearing seat.

[0012] Above the electrical testing platform, a height adjustment block is also provided, which is fixed to the electrical base by positioning posts at both ends.

[0013] The support components include an X-axis fine-tuning device, a Y-axis fine-tuning device, and a Z-axis fine-tuning device.

[0014] The beneficial effects of this utility model are as follows: The online electrical testing component for surface mount inductors of this utility model, by setting an electrical sliding shaft assembly at the lower end of the electrical testing platform, allows the suction head to move downward when the rotating disk of the suction head is above the electrical testing platform. When the surface mount inductor contacts the surface mount inductor electrical testing position, it drives the electrical testing platform to move downward, thereby achieving full contact between the surface mount inductor and the electrical testing piece while providing buffering and soft contact, preventing the surface mount inductor from being damaged or detached from the suction head due to excessive force.

[0015] By setting up four relatively combined electrical test pieces and setting beveled surfaces on both sides of the front end of the electrical test pieces, a square slot with beveled inner sidewalls is formed in the middle of the electrical test platform after combination. This square slot is the test position for surface mount inductors, which can effectively avoid the problem of low detection accuracy caused by poor contact in the existing pin contact test method. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 Exploded view;

[0018] Figure 3 This is a schematic diagram of the structure of the patch inductance testing device of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the electric sliding shaft assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the bearing structure of this utility model;

[0021] Figure 6 This is a schematic diagram showing the contact between a surface mount inductor and this utility model.

[0022] In the diagram: 1. Electrical base 2. Test piece holder 3. Electrical test piece

[0023] 4. Electrical test piece fixing screws 5. Beveled surface

[0024] 6. Surface mount inductor electrical test position 7. Electrical test piece reservoir 8. Electrical sliding shaft 9. Return spring 10. Shaft seat 11. Electrical sliding shaft limit ring fixing screw

[0025] 12. Electrically-connected sliding shaft limiting ring; 13. Electrically-connected sliding shaft through hole; 14. Height adjustment block.

[0026] 15. Positioning pin 16. Surface mount inductor 17. X-axis mounting bracket

[0027] 18. X-axis movable block 19. X-axis fine-tuning screw

[0028] 20. Y-axis fine-tuning screw support seat 21. Y-axis fine-tuning screw

[0029] 22. Y-axis movable support plate 23. Z-axis movable support plate

[0030] 24. Z-axis fine-tuning screw fixing position 25. Z-axis fine-tuning screw

[0031] 26. Shaft mounting hole Detailed Implementation

[0032] Example: See Figures 1 to 6 This embodiment provides an online electrical testing assembly for surface mount inductors, which includes a support assembly and a surface mount inductor electrical testing device disposed on the upper end of the support assembly. The surface mount inductor electrical testing device is fixed to the support assembly via an electrical base 1. The surface mount inductor electrical testing device includes an electrical testing platform and an electrical sliding shaft assembly disposed at the lower end of the electrical testing platform.

[0033] The electrical testing platform includes two sets of electrical test blocks arranged opposite each other. Each set of electrical test blocks includes two electrical test blocks arranged side by side. At the center of the electrical testing platform, the connection of the four electrical test blocks forms a surface mount inductor electrical test position 6.

[0034] The electrical test block includes a test piece base 2, on which an electrical test piece 3 is fixed. The electrical test piece 3 is fixed to the test piece base 2 by electrical test piece fixing screws 4 arranged at the front and rear, and the electrical test piece fixing screws 4 are also used as the wiring terminals of the electrical test platform.

[0035] The electrical test piece 3 can be fixed to the test piece holder 2 by the electrical test piece fixing screw 4, and it can also be used as a wiring terminal to connect to the electrical testing equipment / system through the wire.

[0036] The electrical test piece 3 has a "T" shaped structure, with beveled surfaces 5 on both sides of its front end. After the beveled surfaces 5 of the four electrical test pieces are joined together, they form a square slot with beveled inner walls. This square slot is the surface mount inductor electrical test position 6.

[0037] An electrical test piece reservoir 7 is provided on the test piece holder 2, and the electrical test piece 3 is fixed in the electrical test piece reservoir 7.

[0038] The electrical sliding shaft assembly includes an electrical sliding shaft 8 fixed to the lower end of the electrical test platform, a return spring 9 sleeved on the electrical sliding shaft 8, and a bearing seat 10 fixed on the electrical base 1. The lower end of the return spring 9 is fixed inside the bearing seat 10, and the upper end is in contact with the bottom of the electrical test platform.

[0039] The upper end of the reset spring 9 presses against the test plate seat 2.

[0040] The lower end of the bearing seat is provided with an electric sliding shaft through hole 13, and the electric sliding shaft 8 slides up and down along the bearing seat 10. When the electric sliding shaft 8 slides down, it passes through the electric sliding shaft through hole 13.

[0041] An electric sliding shaft limiting ring 12 is fixed to the bottom of the electric sliding shaft 8 by an electric sliding shaft limiting ring fixing screw 11. The diameter of the electric sliding shaft limiting ring 12 is larger than the diameter of the electric sliding shaft through hole 13 at the bottom of the shaft seat 10. The electric sliding shaft limiting ring 12 prevents the electric sliding shaft 8 from being ejected upwards.

[0042] Above the electrical testing platform, a height adjustment block 14 is also provided, which is fixed to the electrical base 1 by positioning posts 15 at both ends.

[0043] The height adjustment block 14 is used to adjust the height of the electrical testing platform, and its bottom is in contact with the upper surface of the electrical testing platform. When it is necessary to increase the height of the electrical testing platform, the height adjustment block 14 is moved upward, and the electrical testing platform is raised accordingly under the action of the return spring. When it is necessary to decrease the height of the electrical testing platform, the height adjustment block 14 is moved downward. Since the height adjustment block 14 is in contact with the electrical testing platform, the height adjustment block 14 moves downward, and the electrical testing platform is lowered accordingly under the action of the height adjustment block 14, thereby adjusting the height of the electrical testing platform.

[0044] The support components include an X-axis fine-tuning device, a Y-axis fine-tuning device, and a Z-axis fine-tuning device.

[0045] The X-axis fine-tuning device includes an X-axis fixed base 17, an X-axis movable block 18 movably connected to the X-axis fixed base 17, and an X-axis fine-tuning screw 19 provided on the X-axis fixed base 17. The front end of the X-axis fine-tuning screw 19 is located inside the X-axis movable block 18, and the rear end is located on the X-axis fixed base 17. The Y-axis fine-tuning device includes a Y-axis fine-tuning screw support 20 and a Y-axis fine-tuning screw 21 fixed to the X-axis movable block 18, and a Y-axis movable support plate 22 movably connected to the X-axis movable block 18. The front end of the Y-axis fine-tuning screw 21 is located inside the bottom side of the Y-axis movable support plate 22; the Z-axis fine-tuning device includes a Z-axis movable support plate 23 movably connected to the Y-axis movable support plate 22, a Z-axis fine-tuning screw fixing position 24 is provided on the Z-axis movable support plate 23, and a Z-axis fine-tuning screw 25 is provided at the Z-axis fine-tuning screw fixing position 24. The lower end of the Z-axis fine-tuning screw 25 is located inside the upper end of the Y-axis movable support plate 22, and the mounting plate 1 is fixed to the upper end of the Z-axis movable support plate 23.

[0046] The X-axis fine-tuning screw 19 can rotate axially relative to the X-axis fixed seat 17, the Y-axis fine-tuning screw 21 can rotate axially relative to the Y-axis fine-tuning screw support seat 20, and the Z-axis fine-tuning screw 25 can rotate axially relative to the Z-axis movable support plate 23.

[0047] A shaft mounting hole 26 is provided on the electrical base 1 corresponding to the shaft seat 10.

[0048] The working principle of the surface mount inductor online electrical testing component in this embodiment is as follows: When the pick-up head rotary table rotates above the electrical testing platform, the pick-up head moves downward. After the surface mount inductor 16 contacts the surface mount inductor electrical testing position, it drives the electrical testing platform downward, thereby achieving full contact between the surface mount inductor and the electrical testing piece while providing buffering for soft contact. This prevents the surface mount inductor from being damaged due to excessive force or from detaching from the pick-up head. When the pick-up head moves upward, the electrical sliding shaft moves upward under the action of the return spring, thereby driving the electrical testing platform upward and resetting it, completing the electrical testing of the surface mount inductor. This effectively avoids the problem of low detection accuracy caused by false tests in the existing pin contact testing method.

[0049] However, the above description is only a preferred embodiment of the present utility model and is not intended to limit the patent scope of the present utility model. Therefore, all other embodiments described in the present utility model and the equivalent changes made thereto are included within the protection scope of the present utility model.

Claims

1. A surface mount inductor online electrical testing assembly, characterized in that, It includes a support assembly, and a surface mount inductor electrical testing device is provided on the upper end of the support assembly. The surface mount inductor electrical testing device is fixed to the support assembly by an electrical base. The surface mount inductor electrical testing device includes an electrical testing platform and an electrical sliding shaft assembly provided at the lower end of the electrical testing platform.

2. The surface mount inductor online electrical testing assembly according to claim 1, characterized in that, The electrical testing platform includes two sets of electrical test blocks arranged opposite each other. Each set of electrical test blocks includes two electrical test blocks arranged side by side. At the center of the electrical testing platform, the connection of the four electrical test blocks forms a surface mount inductor electrical test position.

3. The surface mount inductor online electrical testing assembly according to claim 2, characterized in that, The electrical test block includes a test piece holder, on which an electrical test piece is fixed. The electrical test piece is fixed to the test piece holder by electrical test piece fixing screws arranged at the front and rear, and the electrical test piece fixing screws are also used as terminals for wiring of the electrical test platform.

4. The surface mount inductor online electrical testing assembly according to claim 3, characterized in that, The electrical test piece has a "T" shaped structure with beveled surfaces on both sides of its front end. After the beveled surfaces of the four electrical test blocks are joined together, they form a square slot, which is the test position for the surface mount inductor.

5. The surface mount inductor online electrical testing assembly according to claim 1, characterized in that, The electrical sliding shaft assembly includes an electrical sliding shaft fixed to the lower end of the electrical testing platform, a return spring sleeved outside the electrical sliding shaft, and a bearing fixed to the electrical base. The lower end of the return spring is fixed inside the bearing, and the upper end contacts the bottom of the electrical testing platform.

6. The surface mount inductor online electrical testing assembly according to claim 5, characterized in that, The lower end of the bearing seat is provided with an electrically conductive sliding shaft through hole, and the electrically conductive sliding shaft slides up and down along the bearing seat.

7. The surface mount inductor online electrical testing assembly according to claim 1, characterized in that, Above the electrical testing platform, a height adjustment block is also provided, which is fixed to the electrical base by positioning posts at both ends.

8. The surface mount inductor online electrical testing assembly according to claim 1, characterized in that, The support components include an X-axis fine-tuning device, a Y-axis fine-tuning device, and a Z-axis fine-tuning device.

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