Tool clamp for chip testing
The detachable positioning seat and base structure and spring pressure block design solves the problem of insufficient adaptability of existing chip test fixtures, and realizes convenient fixation and accurate testing of chips of different sizes and thicknesses.
Patent Information
- Application Number
- CN202422382456.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing chip testing fixtures are difficult to adapt to chips of different sizes and thicknesses, affecting test accuracy.
A detachable positioning seat and base structure is designed, which can realize the convenient replacement of the test plate and positioning plate through bolt connection. Combined with the design of spring and pressure block, it can adapt to the fixation of chips of different sizes and thicknesses.
The convenience and stability of the fixture are improved, ensuring accurate testing of chips of different sizes and thicknesses.
Smart Images
Figure CN223486021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chip testing technology, and in particular to a tooling fixture for chip testing. Background Technology
[0002] Chips, as a commonly used electronic device, are widely used in fields such as electronics, communications, and biology. Due to the many classifications of chips, different testing methods are usually selected according to different types. Microfluidic chips, as an important technical platform for current research on signal detection and processing methods in life sciences, chemical sciences, and information sciences, integrate the basic operational units of biological, chemical, and medical analysis processes, such as sample preparation, reaction, separation, and detection, onto a chip at the micrometer scale, automatically completing the entire analysis process. Therefore, the testing methods for microfluidic chips are very different from those for ordinary electronic chips.
[0003] Research revealed that existing chip testing fixtures are unsuitable for testing various chips due to differences in chip size and thickness, and this affects the accuracy of chip testing.
[0004] Therefore, those skilled in the art have provided a tooling fixture for chip testing to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a chip testing fixture. This fixture is easy to assemble, allows for the replacement of different models of positioning plates to accommodate chips of different sizes, and can also fix chips of different thicknesses, thereby ensuring the accuracy of chip testing and improving the convenience and stability of the fixture.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A chip testing fixture includes a positioning base, a base detachably mounted on the lower end of the positioning base, first screw holes at the four corners of the lower end of the positioning base and the upper end of the base, a test board snapped onto the upper end of the base, probes fixedly mounted on both sides of the lower end of the test board, a positioning plate detachably mounted on the upper end of the positioning base, second screw holes at the four corners of the upper end of the positioning base and the upper end of the positioning plate, a pressure plate rotatably mounted on one side of the upper end of the positioning base, a rotating rod fixedly mounted on one side of the upper end of the positioning base, rotating rings fixedly mounted on one side of the lower end of the pressure plate and at both the front and rear ends, a slot on one side of the positioning base, and a clamping plate rotatably mounted on one side of the pressure plate.
[0008] The above technical solution allows for the replacement of different models of positioning plates, enabling the placement of chips of different sizes. By placing the test board on the base, allowing the probe to pass through the bottom of the base, and then using the first fixing bolt to fix the base to the bottom of the positioning seat, the test board can be fixed and easily replaced, extending the service life of the tooling fixture. Subsequently, the positioning plate is placed on the positioning seat, and the positioning plate can be fixed on the positioning seat using the second fixing bolt, thus realizing the installation and disassembly of the test board and the positioning plate, thereby improving the convenience of the tooling fixture.
[0009] Furthermore, a placement groove is provided in the middle of the upper end of the positioning plate, a groove is provided in the lower end face of the pressure plate, a plurality of springs are fixedly arranged at equal intervals in the groove at the lower end of the pressure plate, a movable plate is fixedly arranged in the groove at the lower end of the plurality of springs, and a pressure block is fixedly arranged in the lower end of the movable plate.
[0010] Through the above technical solution, chips of different thicknesses can be fixed by the moving plate, thereby ensuring the accuracy of chip testing. By rotating the pressure plate to overlap with the positioning seat, the pressure block can be placed in the placement groove. Subsequently, the pressure block is affected by the different thicknesses of the chips, which drives the moving plate to move into the groove. At the same time, under the influence of the spring reaction force, the pressure block fixes the chip with maximum force and fits tightly with the test board, avoiding poor contact between the chip and the test board during the testing process, thereby improving the stability of the tooling fixture.
[0011] Furthermore, each of the lower ends of the base and the corresponding first screw holes is provided with a first fixing bolt, and the plurality of first fixing bolts pass through the corresponding first screw holes and are threadedly connected to the lower end of the positioning seat;
[0012] With the above technical solution, the first fixing bolts pass through the corresponding first screw holes and are threaded to the lower end of the positioning seat, which allows the base to be installed and disassembled, thus facilitating the replacement of the test board.
[0013] Furthermore, the lower ends of both probes penetrate the base and extend outwards;
[0014] With the above technical solution, the probe can be connected to external devices by extending through the base at the bottom, thereby enabling chip testing.
[0015] Furthermore, the upper end of the positioning plate and the corresponding second screw hole are each threaded with a second fixing bolt, and the plurality of second fixing bolts pass through the corresponding second screw holes and are threaded to the upper end of the positioning seat;
[0016] With the above technical solution, the second fixing bolts pass through the corresponding second screw holes and are threaded to the upper end of the positioning seat, so that the positioning plate can be installed and disassembled, and different models of positioning plates can be replaced to place chips of different sizes.
[0017] Furthermore, corresponding rotating rings pass through both ends of the rotating rod, and a torsion spring is sleeved between the two rotating rings and on the rotating rod;
[0018] With the above technical solution, a torsion spring is sleeved between the rotating rings and on the rotating rod, which allows the pressure plate to quickly disengage from the positioning seat.
[0019] Furthermore, the card plate is snapped into place inside the card slot;
[0020] The above technical solution, by using a clamping plate to snap into place inside the slot, allows the pressure plate to be fixed on the positioning seat, thereby ensuring the stability of the tooling fixture test.
[0021] Furthermore, the lower end face of the pressure block is located inside the placement groove;
[0022] By employing the above technical solution, with the lower end face of the pressure block located inside the placement groove, the pressure block can be fixed to chips of different thicknesses by the influence of the spring, ensuring that they are in close contact with the test board and thus ensuring the accuracy of the test.
[0023] This utility model has the following beneficial effects:
[0024] 1. This utility model proposes a chip testing fixture, which is easy to assemble and allows for the replacement of different models of positioning plates to accommodate chips of different sizes. By placing the test board on the base, allowing the probe to pass through the bottom of the base, and then using the first fixing bolt to fix the base to the bottom of the positioning seat, the test board can be fixed and easily replaced, extending the service life of the fixture. Subsequently, the positioning plate is placed on the positioning seat and fixed to the positioning seat using the second fixing bolt, thus realizing the installation and disassembly of the test board and the positioning plate, thereby improving the convenience of the fixture.
[0025] 2. This utility model proposes a chip testing fixture. This fixture can fix chips of different thicknesses through a movable plate, thereby ensuring the accuracy of chip testing. By rotating the pressure plate to overlap with the positioning seat, the pressure block can be placed in the placement groove. Subsequently, the pressure block is affected by the different thicknesses of the chips, which drives the movable plate to move into the groove. At the same time, under the influence of the spring reaction force, the pressure block fixes the chip with maximum force and fits tightly against the test board, avoiding poor contact between the chip and the test board during the testing process, thereby improving the stability of the fixture.
[0026] 3. The present invention proposes a chip testing fixture, which is easy to assemble, allows for the replacement of different models of positioning plates to place chips of different sizes, and can fix chips of different thicknesses, thereby ensuring the accuracy of chip testing and improving the convenience and stability of the fixture. Attached Figure Description
[0027] Figure 1 This is a perspective view of a chip testing fixture proposed in this utility model;
[0028] Figure 2 This is a schematic diagram of the unfolded structure of a chip testing fixture proposed in this utility model.
[0029] Figure 3 This is an exploded view of a chip testing fixture proposed in this utility model;
[0030] Figure 4 This is a bottom view of a chip testing fixture proposed in this utility model;
[0031] Figure 5 This is a bottom view of the positioning seat structure of a chip testing fixture proposed in this utility model.
[0032] Figure 6 This is a schematic diagram of the pressure plate structure of a chip testing fixture proposed in this utility model.
[0033] Legend:
[0034] 1. Positioning seat; 2. Base; 3. First screw hole; 4. First fixing bolt; 5. Test plate; 6. Probe; 7. Positioning plate; 8. Second screw hole; 9. Second fixing bolt; 10. Pressure plate; 11. Rotating rod; 12. Rotating ring; 13. Torsion spring; 14. Clamping plate; 15. Clamping slot; 16. Placement slot; 17. Groove; 18. Spring; 19. Moving plate; 20. Pressure block. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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] Reference Figure 1-6This utility model provides an embodiment of a chip testing fixture, including a positioning base 1, a base 2 detachably mounted on the lower end of the positioning base 1, first screw holes 3 at the four corners of the lower end of the positioning base 1 and the upper end of the base 2, a test plate 5 snapped onto the upper end of the base 2, probes 6 fixedly mounted on both sides of the lower end of the test plate 5, a positioning plate 7 detachably mounted on the upper end of the positioning base 1, second screw holes 8 at the four corners of the upper end of the positioning base 1 and the upper end of the positioning plate 7, a pressure plate 10 rotatably mounted on one side of the upper end of the positioning base 1, a rotating rod 11 fixedly mounted on one side of the upper end of the positioning base 1, and rotating rings 12 fixedly mounted on one side of the lower end of the pressure plate 10 at both the front and rear ends. A slot 15 is provided on one side of the pressure plate 10, and a clamping plate 14 is rotatably provided on one side of the pressure plate 10. Different models of the positioning plate 7 can be replaced, and chips of different sizes can be placed. By placing the test plate 5 on the base 2, the probe 6 passes through the bottom of the base 2, and then the base 2 is fixed to the bottom of the positioning seat 1 with the first fixing bolt 4, the test plate 5 can be fixed and easily replaced, extending the service life of the tooling fixture. Then, the positioning plate 7 is placed on the positioning seat 1, and the positioning plate 7 can be fixed on the positioning seat 1 with the second fixing bolt 9. This enables the installation and removal of the test plate 5 and the positioning plate 7, thereby improving the convenience of the tooling fixture.
[0037] A placement groove 16 is provided in the middle of the upper end of the positioning plate 7, and a groove 17 is provided in the lower end face of the pressure plate 10. Multiple springs 18 are fixedly arranged at equal intervals in the groove 17 at the lower end of the pressure plate 10. A moving plate 19 is fixedly arranged in the groove 17 at the lower end of the multiple springs 18. A pressure block 20 is fixedly arranged in the lower end of the moving plate 19. Chips of different thicknesses can be fixed by the moving plate 19, thereby ensuring the accuracy of chip testing. By rotating the pressure plate 10 to overlap with the positioning seat 1, the pressure block 20 can be placed in the placement groove 16. Subsequently, the pressure block 20 is affected by the different thicknesses of the chips, which drives the moving plate 19 to move into the groove 17. At the same time, it is affected by the reaction force of the springs 18, so that the pressure block 20 fixes the chip with maximum force and fits tightly against the test plate 5, avoiding poor contact between the chip and the test plate 5 during the test, thereby improving the stability of the tooling fixture.
[0038] The base 2 has a first fixing bolt 4 threaded at the lower end of the base and at the corresponding first screw hole 3. Multiple first fixing bolts 4 pass through the corresponding first screw hole 3 and are threaded to the lower end of the positioning seat 1. By having the first fixing bolts 4 pass through the corresponding first screw hole 3 and are threaded to the lower end of the positioning seat 1, the base 2 can be installed and disassembled, thereby facilitating the replacement of the test board 5.
[0039] Both probes 6 have their lower ends penetrating through the base 2 and extending outwards, allowing the probes 6 to be connected to external devices for chip testing.
[0040] The upper end of the positioning plate 7 is provided with a second fixing bolt 9 at the corresponding second screw hole 8. Multiple second fixing bolts 9 pass through the corresponding second screw hole 8 and are threaded to the upper end of the positioning seat 1. By the second fixing bolts 9 passing through the corresponding second screw hole 8 and being threaded to the upper end of the positioning seat 1, the positioning plate 7 can be installed and removed, and different models of positioning plates 7 can be replaced to place chips of different sizes.
[0041] The two ends of the rotating rod 11 pass through corresponding rotating rings 12. A torsion spring 13 is sleeved between the two rotating rings 12 and on the rotating rod 11. The torsion spring 13 sleeved between the rotating rings 12 and on the rotating rod 11 allows the pressure plate 10 to quickly disengage from the positioning seat 1.
[0042] The clamping plate 14 is snapped into the slot 15. By snapping the clamping plate 14 into the slot 15, the pressure plate 10 can be fixed on the positioning seat 1, thereby ensuring the stability of the tooling fixture test.
[0043] The lower end face of the pressure block 20 is located inside the placement groove 16. By having the lower end face of the pressure block 20 located inside the placement groove 16, the pressure block 20 can be fixed to chips of different thicknesses by the influence of the spring 18, so that they are tightly attached to the test board 5, thereby ensuring the accuracy of the test.
[0044] Working principle: When using this chip testing fixture, first place the test board 5 on the base 2, allowing the probe 6 to pass through the bottom of the base 2. Then, use the first fixing bolt 4 to fix the base 2 to the bottom of the positioning seat 1, thereby fixing the test board 5 and facilitating replacement, extending the service life of the fixture. Subsequently, place the matching positioning plate 7 on the positioning seat 1, and use the second fixing bolt 9 to fix the positioning plate 7 to the positioning seat 1, thus realizing the installation and removal of the test board 5 and the positioning plate 7. Then, place the chip in the placement slot 16, and rotate the pressure plate 10 to overlap with the positioning seat 1, allowing the pressure block 20 to be placed in the placement slot 16. Subsequently, the pressure block 20, affected by the different thicknesses of the chip, drives the moving plate 19 to move into the groove 17. At the same time, affected by the reaction force of the spring 18, the pressure block 20 fixes the chip with maximum force and fits tightly against the test board 5, avoiding poor contact between the chip and the test board 5 during the testing process, ensuring the accuracy of chip testing, thereby fixing and testing the chip, thus improving the convenience and stability of the fixture.
[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 tooling fixture for chip testing, comprising a positioning base (1), characterized in that: The positioning seat (1) is detachably provided with a base (2) at its lower end. The lower end of the positioning seat (1) and the upper end of the base (2) are provided with first screw holes (3) at the four corners. The upper end of the base (2) is fitted with a test plate (5). The lower end of the test plate (5) is fixedly provided with probes (6) on both sides. The upper end of the positioning seat (1) is detachably provided with a positioning plate (7). The upper end of the positioning seat (1) and the upper end of the positioning plate (7) are provided with second screw holes (8) at the four corners. The upper end of the positioning seat (1) is rotatably provided with a pressure plate (10) on one side. The upper end of the positioning seat (1) is fixedly provided with a rotating rod (11). The lower end of the pressure plate (10) is fixedly provided with a rotating ring (12) at both the front and rear ends. The positioning seat (1) is provided with a slot (15) on one side. The pressure plate (10) is rotatably provided with a clamping plate (14) on one side.
2. The chip testing fixture according to claim 1, characterized in that: The positioning plate (7) has a placement groove (16) in the middle of its upper end, and the pressure plate (10) has a groove (17) on its lower end surface. Multiple springs (18) are fixedly arranged at equal intervals at the lower end of the pressure plate (10) and within the groove (17). A movable plate (19) is fixedly arranged at the lower end of the multiple springs (18) and within the groove (17). A pressure block (20) is fixedly arranged at the lower end of the movable plate (19).
3. The chip testing fixture according to claim 1, characterized in that: The base (2) is provided with a first fixing bolt (4) at the lower end of the base (2) and at the corresponding first screw hole (3). The first fixing bolts (4) pass through the corresponding first screw hole (3) and are threaded to the lower end of the positioning seat (1).
4. The chip testing fixture according to claim 1, characterized in that: The lower ends of both probes (6) penetrate through the base (2) and extend out.
5. A chip testing fixture according to claim 1, characterized in that: The upper end of the positioning plate (7) and the corresponding second screw hole (8) are each threaded with a second fixing bolt (9). Multiple second fixing bolts (9) pass through the corresponding second screw hole (8) and are threaded to the upper end of the positioning seat (1).
6. A chip testing fixture according to claim 1, characterized in that: The two ends of the rotating rod (11) are connected by corresponding rotating rings (12), and a torsion spring (13) is sleeved between the two rotating rings (12) and on the rotating rod (11).
7. A chip testing fixture according to claim 1, characterized in that: The card plate (14) is snapped into the card slot (15).
8. A chip testing fixture according to claim 2, characterized in that: The lower end face of the pressure block (20) is located inside the placement groove (16).