A flat-pressure flip-top fixture, a portable fixture assembly, and a testing device.

Abstract

This invention relates to the field of chip testing technology, specifically disclosing a flat-pressure flip-top fixture, a portable fixture assembly, and testing equipment. The flat-pressure flip-top fixture includes: a carrier base plate, a fixed rotating shaft, and a cover plate assembly. The cover plate assembly includes an outer cover plate, a pressure plate rotating shaft, and an inner pressure plate. The outer cover plate is hinged to the carrier base plate via the fixed rotating shaft. The inner pressure plate has a through-hole for the pressure plate rotating shaft fixed to the outer cover plate to pass through. When the cover plate assembly is open, the distance between the outer cover plate and the inner pressure plate gradually decreases towards the fixed rotating shaft. When the cover plate assembly is closed, the inner pressure plate is driven by the pressure plate rotating shaft to vertically press the chips downwards. The flat-pressure flip-top fixture, portable fixture assembly, and testing equipment provided by this invention can effectively solve the problem that existing fixtures cannot vertically press the chips downwards during the rotation and closing process of the cover plate assembly, leading to easy damage to the chips.

Description

Technical Field

[0001] This invention relates to the field of chip testing technology, and in particular to a flat-pressure flip-top fixture, a portable fixture assembly, and testing equipment. Background Technology

[0002] Before a chip leaves the factory, it needs to undergo a series of testing procedures. Before testing, the chip needs to be placed in a fixture for fixation.

[0003] Existing jigs generally include:

[0004] The carrier base plate is provided with a plurality of workpiece slots for placing chips;

[0005] A fixed rotating shaft is installed at one end of the base plate of the vehicle;

[0006] A cover plate assembly, one end of which is hinged to the vehicle base plate via the fixed pivot, and the other end of which is snap-fitted to the vehicle base plate.

[0007] The steps for placing the chip into the fixture are as follows:

[0008] ① Rotate the cover plate assembly upwards to open each workpiece slot;

[0009] ② Place each chip one by one into the workpiece slots on the base plate of the carrier;

[0010] ③ Rotate the cover plate assembly downwards so that the end of the cover plate assembly away from the fixed rotating shaft engages with the base plate of the carrier, thereby pressing the chips in the workpiece groove.

[0011] During the process described above, when the cover plate assembly is rotated downwards, the end of the cover plate assembly closer to the fixed pivot will first press against the chip on the carrier base plate that is closer to the fixed pivot, and the end of the cover plate assembly farther from the fixed pivot will press against the chip on the carrier base plate that is farther from the fixed pivot. That is, the rotating and locking cover plate assembly cannot press down all the chips at the same time. This results in the pressure of the cover plate assembly on the chips being tilted downwards rather than vertically downwards during the process of the cover plate assembly rotating downwards to press down on each chip, which can easily damage the chips.

[0012] Therefore, existing fixtures need to be improved to solve the problem that the chip cannot be vertically pressed down during the rotation and closing of its cover assembly, which makes the chip easily damaged.

[0013] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0014] One objective of this invention is to provide a flat-pressure flip-top fixture, a handheld fixture assembly, and a testing device, which can effectively solve the problem that existing fixtures cannot vertically press down on the chip during the rotation and closing process of the cover assembly, resulting in the chip being easily damaged.

[0015] To achieve the above objectives, in one aspect, the present invention provides a flat-press type flip-top fixture, comprising:

[0016] The carrier base plate is provided with a plurality of workpiece slots for placing chips;

[0017] A fixed rotating shaft is installed at one end of the base plate of the vehicle;

[0018] Cover plate assembly, the cover plate assembly comprising:

[0019] An outer cover plate, one end of which is hinged to the vehicle base plate via the fixed pivot, and the other end of which is snap-fitted to the vehicle base plate;

[0020] A pressure plate pivot is installed at the middle position of the outer cover plate;

[0021] An inner pressure plate is located on the side of the outer cover plate closer to the chip, and the middle of the inner pressure plate is provided with a through-shaft waist hole for the pressure plate shaft to pass through.

[0022] Wherein, the diameter of the through-hole is larger than the diameter of the pressure plate shaft:

[0023] When the cover plate assembly is rotated to the open state, the pressure plate pivot abuts against the upper wall surface of the through-shaft waist hole away from the inner pressure plate, and the distance between the outer cover plate and the inner pressure plate gradually decreases towards the fixed pivot.

[0024] When the cover plate assembly rotates to engage with the base plate of the carrier, the pressure plate shaft abuts against the lower wall surface of the inner pressure plate near the through-shaft waist hole, and the inner pressure plate is driven vertically downward by the pressure plate shaft to press each chip against the base plate of the carrier.

[0025] Optionally, the cover assembly further includes:

[0026] A proximal elastic element is located between the ends of the outer cover plate and the inner pressure plate near the fixed pivot.

[0027] A distal elastic element, wherein the distal elastic element is located between the ends of the outer cover plate and the inner pressure plate that are away from the fixed pivot.

[0028] Wherein, the elasticity of the proximal elastic element is less than that of the distal elastic element, such that when the cover plate assembly is rotated to the open state, the pressure plate pivot and the through-shaft waist hole abut against the upper wall surface away from the inner pressure plate.

[0029] Optionally, both the proximal elastic element and the distal elastic element are compression or elastic rubber pillars.

[0030] Optionally, both the upper wall surface and the surface of the pressure plate shaft near the upper wall surface are arc surfaces.

[0031] Optionally, both the lower wall surface and the surface of the pressure plate shaft near the lower wall surface are straight planes.

[0032] Optionally, the cover assembly further includes:

[0033] A rotating hook plate, the middle part of which is hinged to the end of the outer cover plate away from the fixed rotating shaft;

[0034] A hook spring is located between one end of the rotating hook plate and the outer cover plate, and is used to drive the other end of the rotating hook plate to rotate and engage with the base plate of the vehicle.

[0035] On the other hand, a portable jig assembly is provided, characterized in that it comprises:

[0036] Fixed base plate;

[0037] In any of the aforementioned flat-press flip-top fixtures, the carrier base plate of each flat-press flip-top fixture is mounted on the fixed base plate;

[0038] A handle is attached to the side of the fixed base plate.

[0039] Optionally, the fixed base plate also has several connecting plugs that correspond one-to-one with each of the flat-press flip-top fixtures;

[0040] Each workpiece slot on the carrier base plate is provided with several test probes, and each test probe is electrically connected to the corresponding connector plug.

[0041] On the other hand, a testing device is provided, comprising:

[0042] The test chamber has several vertical slots inside.

[0043] Several of the aforementioned hand-held jig assemblies, each of the aforementioned hand-held jig assemblies being plugged into and detached from one of the aforementioned vertical slots.

[0044] Optionally, each of the vertical slots is provided with a corresponding self-locking component, the self-locking component comprising:

[0045] An L-shaped rotating arm is located above the slot of the vertical slot, and the L-shaped rotating arm is hinged to the test box.

[0046] A self-locking spring is located on the side of the L-shaped rotating arm away from the hand-held jig assembly, and is used to drive the L-shaped rotating arm to rotate toward the hand-held jig assembly to prevent the hand-held jig assembly from disengaging upward from the vertical slot.

[0047] The beneficial effects of this invention are that it provides a flat-pressure flip-top fixture, a portable fixture assembly, and a testing device.

[0048] Initially, the cover plate assembly is in the open state, and the distance between the outer cover plate and the inner pressure plate gradually decreases towards the fixed rotating shaft. During the process of the cover plate assembly rotating downwards to close, the end of the inner pressure plate near the fixed rotating shaft will not first squeeze the chip in the workpiece groove downwards.

[0049] As the cover plate assembly continues to rotate downwards until it engages with the base plate of the carrier, the inner pressure plate is held in place by the individual chips and cannot move downwards; the outer cover plate gradually moves downwards, and the pressure plate pivot disengages from the upper wall of the through-shaft waist hole and gradually moves downwards until it is in contact with the lower wall of the through-shaft waist hole.

[0050] When the outer cover plate moves downwards until the pressure plate pivot is in contact with the lower wall of the through-shaft waist hole, the outer cover plate continues to rotate downwards. The outer cover plate presses down on the inner pressure plate through the pressure plate pivot, thereby causing the inner pressure plate to move vertically downwards in a completely horizontal position, and thus cooperate with the carrier base plate to press each chip.

[0051] During the entire fastening process, the moment when the cover plate assembly truly exerts force to press the chip down is after the pressure plate pivot and the lower wall of the through-shaft waist hole are in contact. At this time, pressing down on the inner pressure plate can ensure that the inner pressure plate moves vertically downward in a horizontal posture, and the pressure provided to the chip is also vertically downward.

[0052] Therefore, the flat-pressure flip-top fixture, the handheld fixture assembly, and the testing equipment can effectively solve the problem that the existing fixtures cannot vertically press down on the chip during the rotation and closing process of the cover assembly, which makes the chip easily damaged. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1A schematic diagram of the test equipment provided in the embodiment;

[0055] Figure 2 A schematic diagram of the structure of the portable jig assembly provided in the embodiment;

[0056] Figure 3 This is a schematic diagram of the structure of the flat-pressure flip-top fixture provided in the embodiment;

[0057] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0058] In the picture:

[0059] 100. Test chamber; 100a. Vertical slot;

[0060] 200. Hand-held jig assembly; 200a. Fixed base plate; 200b. Flat-press flip-top jig; 200c. Handle; 200d. Connecting plug;

[0061] 300, self-locking assembly; 300a, L-shaped rotary arm; 300b, self-locking spring;

[0062] 1. Carrier base plate; 101. Workpiece groove;

[0063] 2. Fix the rotating shaft;

[0064] 3. Cover plate assembly; 301. Outer cover plate; 302. Pressure plate pivot; 303. Inner pressure plate; 3031. Through-shaft waist hole; 3031a. Upper wall surface; 3031b. Lower wall surface; 304. Proximal elastic element; 305. Distal elastic element; 306. Rotating hook plate; 307. Hook plate spring. Detailed Implementation

[0065] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0066] In the description of this invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present simultaneously. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be an intermediate component present simultaneously.

[0067] Furthermore, terms such as “long,” “short,” “inner,” and “outer” indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the purpose of describing the present invention and are not intended to indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of the present invention.

[0068] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0069] This invention provides a flat-pressure flip-top fixture, a handheld fixture assembly, and a testing device, which are suitable for application scenarios where chips are clamped and fixed to complete testing procedures. It can effectively solve the problem that existing fixtures cannot vertically press down on the chip during the rotation and closing process of the cover assembly, which makes the chip easily damaged.

[0070] See Figure 1 In this embodiment, the testing equipment includes a test box 100, several hand-held fixture assemblies 200, and several self-locking assemblies 300.

[0071] The test chamber 100 is provided with a plurality of vertical slots 100a, and each of the portable fixture assemblies 200 is plugged into and unplugged into one of the vertical slots 100a. Each of the vertical slots 100a is provided with two self-locking assemblies 300.

[0072] The self-locking assembly 300 includes an L-shaped rotating arm 300a and a self-locking spring 300b. The L-shaped rotating arm 300a is located above the opening of the vertical slot 100a and is hinged to the test chamber 100. The self-locking spring 300b is located on the side of the L-shaped rotating arm 300a away from the portable fixture assembly 200, and is used to drive the L-shaped rotating arm 300a to rotate toward the portable fixture assembly 200, thereby preventing the portable fixture assembly 200 from disengaging upward from the vertical slot 100a.

[0073] Optional, see Figure 2 The carrying fixture assembly 200 includes a fixed base plate 200a, a plurality of flat-press flip-top fixtures 200b, a handle 200c, and a plurality of connecting plugs 200d corresponding one-to-one with each of the flat-press flip-top fixtures 200b. The carrier base plate 1 of each of the flat-press flip-top fixtures 200b is mounted on the fixed base plate 200a; the handle 200c is mounted on the side of the fixed base plate 200a for lifting.

[0074] See Figure 3 and Figure 4The flat-press flip-top fixture 200b includes a carrier base plate 1, a fixed pivot 2, and a cover plate assembly 3. The carrier base plate 1 has several workpiece slots 101 for placing chips; each workpiece slot 101 contains several test probes, each of which is electrically connected to a corresponding connector 200d. After a chip is placed in a workpiece slot 101, the chip can be electrically connected to the connector 200d through the test probes. The fixed pivot 2 is mounted on one end of the carrier base plate 1; one end of the cover plate assembly 3 is hinged to the carrier base plate 1 via the fixed pivot 2, and the other end is snap-fitted to the carrier base plate 1, thereby pressing the chip in the workpiece slot 101 and ensuring close contact between the chip and the test probes.

[0075] Furthermore, the bottom of the test box 100 is provided with several test interfaces. After the portable fixture assembly 200 is inserted into the vertical slot 100a, each connector 200d is inserted into a test interface so as to test the chip inside the flat-press flip-top fixture 200b.

[0076] The specific test procedures are as follows:

[0077] S10: Open the cover plate assembly 3, place the chips one by one into each workpiece slot 101, and then rotate the cover plate assembly 3 to press the chip against the test probe.

[0078] S20: Open the L-shaped rotating arm 300a to rotate the L-shaped rotating arm 300a outward, and then insert the hand-held jig assembly 200 from top to bottom into the vertical slot 100a through the handle 200c;

[0079] S30: After the portable fixture assembly 200 is fully inserted, each connector 200d is inserted into the corresponding test interface; simultaneously, the self-locking spring 300b drives the L-shaped rotating arm 300a to rotate inward, thereby blocking the upward movement path of the portable fixture assembly 200 and restricting the portable fixture assembly 200 from being pulled out of the vertical slot 100a, thus completing the positioning of the portable fixture assembly 200;

[0080] S40: Heating or humidifying the test chamber 100 to test the electrical performance of the chip under high temperature and high humidity conditions.

[0081] In this embodiment, the cover plate assembly 3 includes an outer cover plate 301, a pressure plate pivot 302, an inner pressure plate 303, a proximal elastic element 304, and a distal elastic element 305.

[0082] One end of the outer cover plate 301 is hinged to the carrier base plate 1 via the fixed pivot 2, and the other end is snap-fitted to the carrier base plate 1. The pressure plate pivot 302 is installed in the middle of the outer cover plate 301. The inner pressure plate 303 is located on the side of the outer cover plate 301 closer to the chip, and the middle of the inner pressure plate 303 is provided with a through hole 3031 for the pressure plate pivot 302 to pass through.

[0083] The proximal elastic element 304 is located between the ends of the outer cover plate 301 and the inner pressure plate 303 that are close to the fixed rotating shaft 2; the distal elastic element 305 is located between the ends of the outer cover plate 301 and the inner pressure plate 303 that are far from the fixed rotating shaft 2.

[0084] Wherein, the diameter of the through-shaft waist hole 3031 is larger than the diameter of the pressure plate rotating shaft 302, and the elasticity of the proximal elastic member 304 is smaller than the elasticity of the distal elastic member 305, so that when the cover plate assembly 3 is rotated to the open state, the pressure plate rotating shaft 302 and the through-shaft waist hole 3031 abut against the upper wall surface 3031a of the inner pressure plate 303 away from the inner pressure plate 303.

[0085] Furthermore, in step S10, the process of rotating the cover assembly 3 from the open state to the locked state is detailed as follows:

[0086] S101: Initially, the cover plate assembly 3 is in the open state, the pressure plate pivot 302 abuts against the upper wall surface 3031a of the through-shaft waist hole 3031 away from the inner pressure plate 303, and under the action of the elastic force difference between the proximal elastic member 304 and the distal elastic member 305, the distance between the outer cover plate 301 and the inner pressure plate 303 gradually decreases in the direction closer to the fixed pivot 2;

[0087] This structural design ensures that during the process of the cover plate assembly 3 rotating downwards to close the cover, the end of the inner pressure plate 303 near the fixed rotating shaft 2 will not first press down on the chip in the workpiece groove 101.

[0088] S102: When the cover plate assembly 3 gradually rotates downwards until the inner pressure plate 303 is in a horizontal state, the bottom surface of the inner pressure plate 303 is just in contact with the top of each chip; at this time, the inner pressure plate 303 is horizontal, and the outer cover plate 301 is tilted upwards in a direction away from the fixed rotating shaft 2.

[0089] S103: During the process of the cover plate assembly 3 continuing to rotate downwards until it engages with the carrier base plate 1:

[0090] S1031: Initially, on the one hand, the inner pressure plate 303 is held back by the chips and therefore cannot move downwards; on the other hand, the outer cover plate 301 gradually moves downwards, so the proximal elastic element 304 and the distal elastic element 305 are squeezed, and the distance between the outer cover plate 301 and the inner pressure plate 303 gradually decreases; the pressure plate pivot 302 disengages from the upper wall surface 3031a of the through-shaft waist hole 3031 and gradually moves downwards until it fits against the lower wall surface 3031b of the through-shaft waist hole 3031.

[0091] S1032: When the outer cover plate 301 moves downward until the pressure plate pivot 302 is in contact with the lower wall surface 3031b of the through-shaft waist hole 3031, the outer cover plate 301 continues to rotate downward. The outer cover plate 301 presses the inner pressure plate 303 downward through the pressure plate pivot 302, thereby causing the inner pressure plate 303 to move vertically downward in a completely horizontal posture, thereby cooperating with the carrier base plate 1 to press each chip.

[0092] Therefore, it can be seen that during the entire fastening process, the moment when the cover plate assembly 3 actually exerts force to press the chip down is after the pressure plate pivot 302 is in contact with the lower wall surface 3031b of the through-shaft waist hole 3031. At this time, pressing down the inner pressure plate 303 can ensure that the inner pressure plate 303 moves vertically downward in a horizontal posture, and the pressure provided to the chip is also vertically downward. Therefore, the flat-pressure flip cover fixture 200b can effectively solve the problem that the existing fixture's cover plate assembly 3 cannot press the chip vertically downward during the rotation and closing process, which makes the chip easily damaged.

[0093] Optionally, both the proximal elastic element 304 and the distal elastic element 305 may be compression or elastic rubber columns, etc., and the present invention does not limit them.

[0094] In this embodiment, the surfaces of the upper wall 3031a and the pressure plate shaft 302 near the upper wall 3031a are both arc surfaces, so that the inner pressure plate 303 can rotate relative to the outer cover plate 301.

[0095] The lower wall surface 3031b and the surface of the pressure plate shaft 302 near the lower wall surface 3031b are both straight planes, so that the pressure plate shaft 302 can press the inner pressure plate 303 vertically downward.

[0096] Optionally, the cover plate assembly 3 further includes a rotating hook plate 306 and a hook plate spring 307. The middle part of the rotating hook plate 306 is hinged to the end of the outer cover plate 301 away from the fixed rotating shaft 2; the hook plate spring 307 is located between one end of the rotating hook plate 306 and the outer cover plate 301, and is used to drive the other end of the rotating hook plate 306 to rotate and engage with the carrier base plate 1.

[0097] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. 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.

[0098] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A flat-press type flip-top fixture, characterized in that, include: The carrier base plate is provided with a plurality of workpiece slots for placing chips; A fixed rotating shaft is installed at one end of the base plate of the vehicle; Cover plate assembly, the cover plate assembly comprising: An outer cover plate, one end of which is hinged to the vehicle base plate via the fixed pivot, and the other end of which is snap-fitted to the vehicle base plate; A pressure plate pivot is installed at the middle position of the outer cover plate; An inner pressure plate is located on the side of the outer cover plate closer to the chip, and the middle of the inner pressure plate is provided with a through-shaft waist hole for the pressure plate shaft to pass through. Wherein, the diameter of the through-hole is larger than the diameter of the pressure plate shaft: When the cover plate assembly is rotated to the open state, the pressure plate pivot abuts against the upper wall surface of the through-shaft waist hole away from the inner pressure plate, and the distance between the outer cover plate and the inner pressure plate gradually decreases towards the fixed pivot. When the cover plate assembly rotates to engage with the base plate of the carrier, the pressure plate shaft abuts against the lower wall surface of the through-shaft waist hole near the inner pressure plate, and the inner pressure plate is driven vertically downward by the pressure plate shaft to cooperate with the base plate of the carrier to press each chip; Both the upper wall surface and the surface of the pressure plate shaft near the upper wall surface are arc surfaces; Both the lower wall surface and the surface of the pressure plate shaft near the lower wall surface are straight planes.

2. The flat-press flip-top fixture according to claim 1, characterized in that, The cover plate assembly also includes: A proximal elastic element is located between the ends of the outer cover plate and the inner pressure plate near the fixed pivot. A distal elastic element, wherein the distal elastic element is located between the ends of the outer cover plate and the inner pressure plate that are away from the fixed pivot. Wherein, the elasticity of the proximal elastic element is less than that of the distal elastic element, such that when the cover plate assembly is rotated to the open state, the pressure plate pivot and the through-shaft waist hole abut against the upper wall surface away from the inner pressure plate.

3. The flat-press flip-top fixture according to claim 2, characterized in that, Both the proximal elastic element and the distal elastic element are compression or elastic rubber columns.

4. The flat-press flip-top fixture according to claim 1, characterized in that, The cover plate assembly also includes: A rotating hook plate, the middle part of which is hinged to the end of the outer cover plate away from the fixed rotating shaft; A hook spring is located between one end of the rotating hook plate and the outer cover plate, and is used to drive the other end of the rotating hook plate to rotate and engage with the base plate of the vehicle.

5. A portable jig assembly, characterized in that, include: Fixed base plate; The flat-press flip-top fixture according to any one of claims 1 to 4, wherein the carrier base plate of each flat-press flip-top fixture is mounted on the fixed base plate; A handle is attached to the side of the fixed base plate.

6. The handheld jig assembly according to claim 5, characterized in that, The fixed base plate also has several connecting plugs that correspond one-to-one with each of the flat-pressure flip-top fixtures. Each workpiece slot on the carrier base plate is provided with several test probes, and each test probe is electrically connected to the corresponding connector plug.

7. A testing device, characterized in that, include: The test chamber has several vertical slots inside. The hand-held jig assembly of claims 5 or 6, each of the hand-held jig assemblies being plugged into and out of one of the vertical slots.

8. The testing equipment according to claim 7, characterized in that, Each of the vertical slots is provided with a corresponding self-locking component, the self-locking component comprising: An L-shaped rotating arm is located above the slot of the vertical slot, and the L-shaped rotating arm is hinged to the test box. A self-locking spring is located on the side of the L-shaped rotating arm away from the handle assembly, and is used to drive the L-shaped rotating arm to rotate toward the handle assembly to prevent the handle assembly from disengaging upward from the vertical slot.

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