An automatic unlocking and resetting mechanism and an unlocking and resetting method thereof

Abstract

The application relates to an automatic unlocking and resetting mechanism and an unlocking and resetting method thereof, which comprises a positioning module and an unlocking module arranged above the positioning module; the unlocking module comprises a pressing assembly and an unfolding assembly; the unfolding assembly comprises a mounting plate, a first lifting module for driving the mounting plate to move, a movable block arranged on the mounting plate and capable of moving along a Z axis, a second lifting module for driving the movable block to move, and two push blocks arranged below the movable block and capable of moving away from or close to each other in a horizontal direction; the two push blocks are in transmission connection with the movable block through a transmission driving unit, and are used for converting linear motion of the movable block along the Z axis into linear motion of the two push blocks in the horizontal direction. The application realizes segmented and orderly unfolding of side wings through two unlocking strokes, can effectively avoid side wing jamming or damage, and has the advantages of stable unlocking, high automation degree, reliable resetting and the like.

Description

Technical Field

[0001] This invention relates to the field of glue-filling fixture unlocking technology, and more specifically, to an automatic unlocking and resetting mechanism and its unlocking and resetting method. Background Technology

[0002] like Figure 1 As shown, a pressure-type glue-filling fixture 10 is presented, which includes a base 1, on which a sample 2 is placed; the sample 2 is provided with side ears 3 on both the left and right sides; the base 1 is provided with side wings 4 on the left and right sides respectively corresponding to the two side ears; the side wings 4 are rotatably connected to the base 1 (e.g., through hinges or pivots); the side wings 4 are provided with through holes 5 for the side ears 3 to pass through.

[0003] In the initial state, the glue-pouring fixture is not subjected to any external force, and both sides of the wings 4 are perpendicular to the base 1 (i.e., in a closed and locked state). At this time, at least a portion of both sides of the ears 3 are embedded in the corresponding through holes 5. The two sides of the wings 4 fix the sample 2 onto the base 1 through the interlocking action of the through holes 5 and the ears 3, so as to carry out the subsequent glue-pouring process.

[0004] When it is necessary to unlock the glue-filling fixture, the glue-filling fixture needs to be forced by external force so that the two wings 4 can be flipped outward and opened to a state parallel to the base 1 (i.e., fully opened state). At this time, the two ears 3 are completely disengaged from the through holes 5 of the corresponding side wings 4, and the side wings 4 no longer constrain the side ears 3, so that the sample 2 can be separated from the base 1 and the sample can be taken out.

[0005] The existing unlocking methods for glue-filling fixtures have the following shortcomings: First, manual operation requires operators to simultaneously pry both wings outward to a horizontal position. This is not only labor-intensive and inefficient, but also makes it difficult to ensure that both wings open synchronously, often resulting in one side opening first and the other later. This can lead to scraping or even jamming between the side ears and the edge of the through-hole, causing damage to the sample or fixture. Second, while using a pressure block in conjunction with a lifting module for one-time pressing unlocking can automate the process, it only provides a linear downward pressing action in one direction. It cannot control the movement direction of the push block segmentally according to the wing rotation angle during unlocking. This can easily lead to excessive pressure on the wing due to excessive downward impact or unreasonable pushing direction, causing plastic deformation or damage to the hinge parts, affecting the service life of the fixture and the sample extraction yield. Furthermore, none of the above-mentioned existing methods can achieve segmented and orderly unfolding of the wing from an inclined state to a horizontal state during unlocking, making it difficult to meet the actual needs for precise control of the wing unfolding process. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an automatic unlocking and resetting mechanism and its unlocking and resetting method, in view of the above-mentioned defects of the prior art.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: On one hand, the present invention provides an automatic unlocking and resetting mechanism, comprising a positioning module for placing and positioning a glue dispensing fixture, and an unlocking module disposed above the positioning module; the unlocking module comprises a pressing component for applying pressure to the sample of the glue dispensing fixture to press and fix the glue dispensing fixture on the positioning module, and an unfolding component for simultaneously unfolding the two wings of the glue dispensing fixture outward. The unfolding assembly includes a mounting plate and a first lifting module for driving the mounting plate to move; the mounting plate is provided with a movable block that can move along the Z-axis, and a second lifting module for driving the movable block to move; below the movable block are two push blocks that can move away from or towards each other in the horizontal direction; the two push blocks correspond to the left and right wings of the glue-pouring fixture respectively; The two push blocks are connected to the movable block via a transmission drive unit, which is used to convert the linear motion of the movable block along the Z-axis into linear motion of the two push blocks along the horizontal direction.

[0008] The automatic unlocking and resetting mechanism of the present invention, wherein the unfolding component has two unlocking strokes during the unlocking process: During the first unlocking stroke, the second lifting module drives the movable block to descend to a first height, so that the two push blocks contact the inner surface of the corresponding side wings respectively. Under the action of the transmission drive unit, they move away from each other in the horizontal direction at the same time, pushing the left and right side wings to flip outward at the same time by a first angle, so that the two side wings of the glue potting fixture are unfolded outward to be tilted with their base, and the glue potting fixture is initially opened. During the second unlocking stroke, the first lifting module drives the mounting plate to continue to descend to a second height, causing the two push blocks to simultaneously apply outward horizontal thrust and downward pressing force to the two side wings, pushing the left and right side wings to continue to rotate outward synchronously to a second angle until the two side wings of the glue-filling fixture are fully unfolded to be parallel to its base, fully opening the glue-filling fixture, so that the side ears are completely disengaged from the through hole, and the glue-filling fixture is fully unlocked.

[0009] The automatic unlocking and resetting mechanism of the present invention includes a transmission drive unit comprising two cams rotatably disposed at the lower end of the movable block, and a first reset elastic member laterally disposed between the two push blocks; at least a portion of the cams protrudes below the movable block, and the two cams respectively form a rolling engagement with the corresponding push blocks; the two push blocks are connected by the first reset elastic member, which is used to drive the two push blocks to automatically and synchronously move closer to each other in the horizontal direction to reset after the two cams release their pushing force.

[0010] The automatic unlocking and reset mechanism of the present invention includes a pressing component located between two push blocks; the pressing component includes a cantilever fixedly connected to the mounting plate, a pressing block disposed below the cantilever and corresponding to the positioning module, and a second reset elastic member connected between the cantilever and the pressing block; the pressing block is used to press against the sample upper surface of the potting fixture when the mounting plate descends, and the second reset elastic member is used to provide elastic buffering and reset force to the pressing block.

[0011] The automatic unlocking and resetting mechanism of the present invention includes a push block comprising a sliding part slidably connected to an X-axis slide rail on the mounting plate, a connecting part fixedly connected to the sliding part, and a pushing part fixedly disposed at the lower end of the connecting part; the sliding part is provided with a pressing part for pressing and fixing the sample of the glue-pouring fixture on the inner side of the connecting part; the two surfaces of the two sliding parts disposed opposite each other are respectively provided with a first inclined surface that is inclined outward and upward, and the two first inclined surfaces are respectively used to form a rolling pushing engagement with the corresponding cam, so as to convert the vertical pressure of the cam into a lateral thrust that drives the sliding part to slide in the horizontal direction.

[0012] The automatic unlocking and resetting mechanism of the present invention includes a pusher having an elongated structure, the length of which is adapted to the width direction of the side wing of the glue-pouring fixture; the lower end of the pusher is provided with a second inclined surface that slopes outward and upward, the second inclined surface being used to push against the inner surface of the side wing when the pusher descends, so as to convert the vertical movement into the outward flipping movement of the side wing.

[0013] The automatic unlocking and resetting mechanism of the present invention includes a positioning module comprising a fixed base and a third lifting module for driving the fixed base to move along the Z-axis; the upper surface of the fixed base is provided with a positioning protrusion, and the lower surface of the glue-filling fixture is provided with a positioning groove that engages with the positioning protrusion for positioning; the third lifting module is used to drive the fixed base to rise to receive the glue-filling fixture, or to bring it below the glue-filling fixture away from the unfolding assembly.

[0014] The automatic unlocking and resetting mechanism of the present invention includes a positioning protrusion located at the center of the upper surface of the fixed base, and the positioning protrusion having a cross-shaped protrusion structure; a positioning groove located at the center of the lower surface of the glue-filling fixture, and the shape of the positioning groove matching the shape of the positioning protrusion, for limiting the glue-filling fixture in the circumferential direction.

[0015] In the automatic unlocking and resetting mechanism of the present invention, the extension lines of the central axis of the pressing component, the central axis of the positioning groove, and the central axis of the positioning protrusion coincide.

[0016] On the other hand, the present invention also provides an automatic unlocking and reset method, using the automatic unlocking and reset mechanism as described in any of the above, wherein the method includes the following steps: Step S1: Place the glue-dispensing fixture on the positioning module and position the glue-dispensing fixture using the positioning module; Step S2: Activate the first lifting module, drive the mounting plate to lower the unfolding component and the pressing component as a whole, so that the pressing component presses against the upper surface of the sample, and presses and fixes the potting fixture onto the positioning module; Step S3: Start the second lifting module to drive the movable block to descend to the first height, so that the two push blocks contact the corresponding side wings respectively. As the movable block continues to descend, the transmission drive unit converts the vertical movement of the movable block into the horizontal synchronous movement of the two push blocks moving away from each other. The two push blocks push the left and right side wings to rotate outward synchronously at the first angle, so that the side wings are tilted relative to the base. Step S4: Maintain the current state of the second lifting module, continue to start the first lifting module, drive the entire mounting plate to continue to descend to the second height, and while the two push blocks are moving horizontally outward away, move downward synchronously with the mounting plate, push the left and right wings to continue to rotate outward synchronously to the second angle, until the two wings are parallel to the base, and complete the unlocking. Step S5: After removing the sample, drive the first lifting module and the second lifting module to move in opposite directions, so that the mounting plate and the movable block rise and reset, and the two wings automatically fall back to the initial locked state perpendicular to the base, completing the overall reset.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention employs a two-stage unlocking assembly. In the first stage, the second lifting module drives the movable block to descend a first height. The transmission drive unit converts the vertical motion into a synchronized horizontal movement of the two push blocks, pushing the side wings outwards to an inclined state, disengaging the side ears from the through-hole. In the second stage, the first lifting module drives the mounting plate to descend a second height. The two push blocks, while maintaining a horizontal distance, move downwards simultaneously, applying both outward horizontal thrust and downward pressure to the side wings, pushing them to continue flipping to a horizontal state. This two-stage, step-by-step unlocking process ensures a smooth and orderly unfolding of the side wings from an initial vertical state to an inclined state to a horizontal state. The side wings receive thrust in a reasonable direction at each stage, avoiding the plastic deformation or damage to the hinged parts caused by excessive impact or a single thrust direction in traditional one-time pressing methods. This effectively protects the structural integrity of the potting fixture, extends its service life, and improves the sample extraction yield.

[0018] 2. This invention uses a transmission drive unit to synchronously convert the vertical movement of the movable block into two push blocks moving away in opposite directions with equal amounts in the horizontal direction. Since the two push blocks are driven by the same movable block through a symmetrical transmission structure, the horizontal displacement of the two push blocks is completely consistent, thus driving the left and right wings to flip outward synchronously. Compared to manual operation, which is prone to uneven opening due to the difficulty in ensuring synchronized force application, this invention mechanically guarantees absolute synchronicity in the deployment of the left and right wings, effectively avoiding problems such as scraping and jamming between the side ears and the through-hole edges caused by asynchronous deployment.

[0019] 3. In this invention, both the pressing component and the unfolding component are mounted on the same mounting plate and are driven to move up and down synchronously by the first lifting module. When the mounting plate descends as a whole, the pressing block of the pressing component contacts and presses the sample before the pushing block of the unfolding component, firmly fixing the dispensing fixture onto the positioning module. Then, the first and second unlocking actions are performed. This timing design of pressing before unlocking ensures that the dispensing fixture is reliably fixed throughout the unlocking process, avoiding displacement or jumping of the dispensing fixture due to lateral force, and further ensuring the stability and reliability of unlocking. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. 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. Figure 1 This is a schematic diagram of the structure of the glue-pouring fixture 10 in the background art.

[0021] Figure 2 This is a schematic diagram of the overall structure of an automatic unlocking and resetting mechanism according to Embodiment 1 of the present invention.

[0022] Figure 3 yes Figure 2 A schematic diagram of the structure of the unlocking module 30.

[0023] Figure 4 yes Figure 2 A schematic diagram of the positioning module 20. Detailed Implementation

[0024] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, lower end, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0029] Example 1: This invention provides an automatic unlocking and resetting mechanism, such as... Figure 2 As shown, it includes a positioning module 20 for placing and positioning the dispensing fixture 10, and an unlocking module 30 disposed above the positioning module 20. The unlocking module 30 includes a pressing component 31 and an unfolding component 32, wherein the pressing component 31 is used to apply pressure to the sample of the dispensing fixture 10, pressing and fixing the dispensing fixture 10 onto the positioning module 20; the unfolding component 32 is used to simultaneously unfold the two wings of the dispensing fixture 10 outward to achieve unlocking.

[0030] Please see Figure 3 (This is an exploded structural diagram of the unfolding component of the present invention.) The unfolding component 32 includes a mounting plate 321, a first lifting module 322, a movable block 323, a second lifting module 324, and two push blocks 325. The first lifting module 322 is fixedly mounted on an external frame (not shown in the figure), and its output end is fixedly connected to the mounting plate 321, used to drive the mounting plate 321 to move up and down along the Z-axis direction (i.e., the vertical direction). The mounting plate 321 is provided with a guide rail (not labeled in the figure) extending along the Z-axis direction. The movable block 323 is slidably mounted on the guide rail and can move independently relative to the mounting plate 321 along the Z-axis direction. The second lifting module 324 is fixedly mounted on the mounting plate 321, and its output end is fixedly connected to the movable block 323, used to drive the movable block 323 to move up and down along the Z-axis direction. Preferably, the first lifting module 322 and the second lifting module 324 are either pneumatic cylinders, electric cylinders or hydraulic cylinders, more preferably servo electric cylinders, so as to achieve precise stroke control.

[0031] Two push blocks 325 are disposed below the movable block 323, and the two push blocks 325 correspond to the left and right wings of the glue-pouring fixture 10, respectively. Specifically, an X-axis slide rail 3211 extending along the X-axis direction (i.e., the horizontal direction) is fixedly disposed on the lower surface of the mounting plate 321. The two push blocks 325 are slidably disposed on the left and right sides of the X-axis slide rail 3211, so that the two push blocks 325 can move away from or towards each other synchronously in the horizontal direction.

[0032] The two push blocks 325 are connected to the movable block 323 via a transmission drive unit. The transmission drive unit converts the linear motion of the movable block 323 along the Z-axis into synchronous, opposite linear motions of the two push blocks 325 along the horizontal direction. In this embodiment, as... Figure 2 and Figure 3As shown, the transmission drive unit includes two cams 326 and a first reset elastic element 327. The two cams 326 are rotatably mounted on both sides of the lower end of the movable block 323 via a rotating shaft (not labeled in the figure), with at least a portion of each cam protruding below the movable block 323. The two cams 326 respectively form a rolling engagement with their corresponding push blocks 325. The first reset elastic element 327 is laterally disposed between the two push blocks 325, with its two ends fixedly connected to each push block 325. Preferably, the first reset elastic element 327 is a tension spring or a compression spring, more preferably a helical compression spring. When the movable block 323 descends, the two cams 326 descend accordingly, pushing the two push blocks 325 away from each other in the horizontal direction; when the movable block 323 rises and the cams 326 release their pushing force, the two push blocks 325 synchronously move closer to each other in the horizontal direction and reset under the elastic restoring force of the first reset elastic element 327.

[0033] This invention employs a two-stage unlocking assembly. In the first stage, a second lifting module drives the movable block to descend a first height. The transmission drive unit converts the vertical motion into a synchronized horizontal movement of the two push blocks, pushing the side wings outwards to an inclined state, disengaging the side ears from the through-hole. In the second stage, the first lifting module drives the mounting plate to descend a second height. The two push blocks, while maintaining a horizontal distance, move downwards simultaneously, applying both outward horizontal thrust and downward pressure to the side wings, pushing them to a horizontal state. This two-stage, step-by-step unlocking process ensures a smooth and orderly unfolding of the side wings from an initial vertical state to an inclined state to a horizontal state. The side wings receive thrust in a reasonable direction at each stage, avoiding the plastic deformation or damage to the hinged parts caused by excessive impact or a single thrust direction in traditional one-time pressing methods. This effectively protects the structural integrity of the potting fixture, extends its service life, and improves the sample extraction yield.

[0034] Please see Figure 3The pressing assembly 31 is located between the two push blocks 325. Specifically, the pressing assembly 31 includes a cantilever 311, a pressing block 312, and a second reset elastic member 313. One end of the cantilever 311 is fixedly connected to the mounting plate 321 (e.g., locked with bolts), and the other end extends outward in a straight line towards the central area between the two push blocks 325. The pressing block 312 is disposed below the cantilever 311 and corresponds to the sample position on the positioning module 20. The second reset elastic member 313 is connected between the cantilever 311 and the pressing block 312. Preferably, the second reset elastic member 313 is a helical spring or a spring plunger. The pressing block 312 is used to press against the upper surface of the sample on the potting fixture 10 when the mounting plate 321 is lowered as a whole, thereby pressing and fixing the sample together with the entire potting fixture 10 onto the positioning module 20. The second reset elastic element 313 is used to provide elastic buffer when the pressure block 312 contacts the sample to avoid rigid impact damage to the sample, and at the same time to provide reset force when the mounting plate 321 rises, so that the pressure block 312 returns to the initial position.

[0035] Furthermore, the pusher block 325 includes a sliding portion 3251, a connecting portion 3252, a pushing portion 3253, and a pressing portion 3254. The sliding portion 3251 is slidably connected to the X-axis slide rail 3211 on the mounting plate 321, and has a slider structure that cooperates with the X-axis slide rail 3211. The connecting portion 3252 is fixedly connected to the sliding portion 3251 (e.g., integrally formed or fixed by bolts) and extends downward from the sliding portion 3251. The pushing portion 3253 is fixedly disposed at the lower end of the connecting portion 3252 and is used to contact the inner surface of the side wing and push the side wing to flip. The pressing part 3254 is disposed on the sliding part 3251 and located inside the connecting part 3252 (i.e., the side close to the center of the glue-filling fixture). The lower surface of the pressing part 3254 is lower than the lower surface of the sliding part 3251, and is used to assist in pressing and fixing the sample edge of the glue-filling fixture 10 when the push block 325 descends with the mounting plate 321.

[0036] Two opposing surfaces (i.e., the inner surfaces of the two sliding parts facing each other) of the two sliding parts 3251 are each provided with a first inclined surface A. The first inclined surface A extends outward from bottom to top (i.e., it inclines from the lower inner end of the sliding part to the upper outer end). The two first inclined surfaces A respectively form a rolling push engagement with the corresponding cams 326. When the cam 326 descends with the movable block 323 and contacts the first inclined surface A, the cam 326 rolls along the first inclined surface A, converting the vertical pressure of the cam 326 into a lateral thrust that drives the sliding part 3251 to slide outward in the horizontal direction, thereby realizing the conversion of the motion direction. The present invention adopts a rolling engagement structure between the cam and the first inclined surface on the push block. The structure is simple and compact, and it can efficiently convert the vertical motion of the movable block into the horizontal motion of the push block without an additional power source. The rolling friction between the cam and the inclined surface is small, with minimal friction and wear, ensuring transmission accuracy and lifespan during long-term use. Meanwhile, in conjunction with the first reset elastic element horizontally positioned between the two push blocks, the two push blocks can automatically and synchronously reset after the cam removes the pushing force, without the need for additional power drive, simplifying the control logic and reducing costs.

[0037] The pushing part 3253 has an elongated structure, and its length direction is adapted to the width direction of the side wing of the glue-pouring jig 10. That is, the length of the pushing part 3253 is not less than the width of the side wing, so as to ensure that the pushing part 3253 can fully contact and push the side wing. The lower end of the pushing part 3253 is provided with a second inclined surface B, which extends outward from bottom to top (that is, it is inclined from the inner side of the lower end of the pushing part to the outer upper end). The second inclined surface B is used to push against the inner surface of the side wing when the pushing part 3253 descends, so as to convert the vertical movement into the outward flipping movement of the side wing. When the pushing part 3253 continues to descend with the mounting plate 321, the second inclined surface B contacts the inner surface of the side wing. As the pushing part 3253 descends further, the second inclined surface B generates an outward horizontal force and a downward pressure force on the side wing, thereby driving the side wing to flip further outward to a horizontal state.

[0038] The pusher block of this invention integrates a sliding part, a connecting part, a pushing part, and a pressing part. The second inclined surface at the lower end of the pushing part simultaneously provides a horizontal outward pushing force and a downward pressing force during the second unlocking stroke, achieving a combined drive for the side wings. The pressing part assists in pressing the sample edge during the descent of the mounting plate. The same pusher block serves both as a motion actuator to drive the deployment of the side wings and as an auxiliary pressing component to fix the sample. This design features high structural integration, good space utilization, and contributes to the miniaturization of the entire device.

[0039] Please see Figure 4The positioning module 20 includes a fixed base 21 and a third lifting module 22. The third lifting module 22 is fixedly mounted on an external base (not shown in the figure), and its output end is fixedly connected to the lower end of the fixed base 21, for driving the fixed base 21 to move up and down along the Z-axis. Preferably, the third lifting module 22 is any one of a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. The upper surface of the fixed base 21 is provided with a positioning protrusion 23, and the lower surface of the glue-filling fixture 10 is provided with a positioning groove (not shown in the figure) that engages with the positioning protrusion 23 for positioning. The third lifting module 22 is used to drive the fixed base 21 to rise, so as to receive and lift the glue-filling fixture 10, or to move the glue-filling fixture 10 down away from the unfolding assembly 32, so as to facilitate the handling of samples.

[0040] Preferably, the positioning protrusion 23 is located at the center of the upper surface of the fixing base 21, and the positioning protrusion 23 is a cross-shaped protrusion structure. Correspondingly, the positioning groove (not shown in the figure) is located at the center of the lower surface of the dispensing fixture 10, and the shape of the positioning groove is adapted to the shape of the positioning protrusion 23 (i.e., a cross-shaped groove structure). The cross-shaped mating structure can simultaneously limit the dispensing fixture 10 in the X-axis and Y-axis directions (i.e., two orthogonal directions on the horizontal plane), preventing the dispensing fixture 10 from rotating or shifting in the horizontal plane, and ensuring the positional accuracy between the side wings and the push block. In addition, the extension lines of the central axis of the pressing assembly 31, the central axis of the positioning groove, and the central axis of the positioning protrusion 23 coincide, that is, the three are concentrically arranged on the same vertical axis, so as to ensure that the pressure applied by the pressing assembly 31 acts on the sample in a centered manner and avoid the dispensing fixture 10 from being skewed.

[0041] The working principle and process of the automatic unlocking and reset mechanism in this embodiment are as follows: In the initial state, the potting fixture 10 is placed on the fixed base 21 of the positioning module 20, and precise positioning is achieved through the insertion and cooperation of the positioning protrusion 23 and the positioning groove. At this time, the mounting plate 321 and the movable block 323 are both in the high position; the two push blocks 325 are in the initial position close to each other under the action of the first reset elastic element 327; there is a gap between the pressing block 312 of the pressing assembly 31 and the upper surface of the sample; the two wings of the potting fixture 10 hang down naturally when there is no external force, and are perpendicular to the base, with the side ears embedded in the through holes to form a lock.

[0042] When unlocking is required, the first lifting module 322 is activated, extending its output end to drive the mounting plate 321 to descend as a whole. During the descent of the mounting plate 321, the unfolding component 32 and the pressing component 31 descend synchronously. The pressing block 312 first contacts the upper surface of the sample and gradually presses the sample under the buffering effect of the second reset elastic element 313, while the second inclined surface B at the lower end of the pushing part 3253 approaches. After the mounting plate 321 descends to its position, the pressing component 31 presses and fixes the potting fixture 10 onto the positioning module 20 to prevent displacement of the potting fixture 10 during subsequent unlocking.

[0043] The first unlocking phase then begins: the second lifting module 324 is activated, extending its output end and driving the movable block 323 to descend a first height along the Z-axis. During the descent of the movable block 323, the two cams 326 descend accordingly. When the cams 326 contact the first inclined surface A on the sliding part 3251, as the movable block 323 continues to descend, the cams 326 roll along the first inclined surface A and push outward against the sliding part 3251, thus converting the vertical motion into a synchronous, opposite, horizontal movement of the two push blocks 325. The pushing parts 3253 of the two push blocks 325 contact the inner surfaces of the left and right wings respectively, driving the wings to rotate outward synchronously. During this process, the wings rotate outward at a first angle under the lateral thrust of the push blocks 325, causing them to be tilted relative to their base (e.g., at approximately a 45° angle). The through holes on the wings rotate outward with the wings, causing the side ears to partially disengage from the through holes but still remain partially restrained (i.e., the side ears have not completely exited the through holes), and the glue-filling fixture 10 is initially opened.

[0044] Next, the second unlocking process begins: Maintaining the current state of the second lifting module 324 (i.e., the movable block 323 remains at its current height), the first lifting module 322 is activated, causing its output end to extend further, driving the mounting plate 321 to descend to a second height. During this process, as the mounting plate 321 continues to descend, the two push blocks 325, while maintaining a horizontal outward-moving position, also move downwards synchronously with the mounting plate 321. At this time, the second inclined surface B at the lower end of the pushing part 3253 further penetrates into contact with the inner surface of the side wing, simultaneously applying an outward horizontal thrust and a downward pressing force to the side wing. Under the action of this combined force, the side wing continues to synchronously rotate outwards at a second angle until both sides are fully extended to a parallel state with the base (i.e., a horizontal state). At this point, the through holes on the side wing completely rotate to a horizontal position with the side wing, the side ears completely disengage from the through holes, the potting fixture 10 is completely unlocked, and the sample can be easily removed.

[0045] After the sample is removed, a reset operation is required: First, the first lifting module 322 is driven to reverse (retract), causing the mounting plate 321 to rise and reset; then, or simultaneously, the second lifting module 324 is driven to reverse (retract), causing the movable block 323 to rise and reset. During the rise of the movable block 323, the cam 326 gradually disengages from the first inclined surface A and moves upward, removing the pushing force on the push block 325. Under the elastic restoring force of the horizontally arranged first reset elastic element 327, the two push blocks 325 synchronously approach each other in the horizontal direction, returning to their initial positions. At the same time, the two wings of the potting fixture 10 automatically fall downward under their own weight, sequentially returning from a horizontal state to an inclined state, and finally falling back to the initial locked state perpendicular to the base. The side ears re-embed into the corresponding through holes, completing the overall reset.

[0046] It is worth noting that the specific values ​​of the first and second heights mentioned above can be adjusted according to the actual size of the dispensing fixture and the required flip angle of the side wings, and the present invention does not impose specific limitations on this. Furthermore, the sequence of actions and the stroke length of the first lifting module 322 and the second lifting module 324 can be precisely controlled by a programmable logic controller (PLC) or industrial computer, which are very mature technologies in the prior art, to meet the unlocking requirements of products of different specifications.

[0047] Example 2: The present invention also provides an automatic unlocking and resetting method, using the automatic unlocking and resetting mechanism described in Embodiment 1 above. The method includes the following steps: Step S1: Place the glue-dispensing fixture on the positioning module and position the glue-dispensing fixture using the positioning module.

[0048] Specifically, the operator or automated feeding robot places the dispensing fixture carrying the sample onto the fixed base of the positioning module. The cross-shaped positioning protrusion on the upper surface of the fixed base engages with the cross-shaped positioning groove (not shown in the figure) on the lower surface of the dispensing fixture, limiting the dispensing fixture in both the X and Y axes of the horizontal plane to prevent horizontal displacement or rotation. At this time, the left and right wings of the dispensing fixture are naturally perpendicular to the base without external force, and the side ears are embedded in the corresponding through holes, locking the sample onto the base.

[0049] Preferably, before placing the glue-dispensing fixture, the third lifting module can be activated to drive the fixed base to rise to a height that is easy to receive. After the glue-dispensing fixture is placed in place, the third lifting module maintains the current height, so that the glue-dispensing fixture is stably located directly below the unfolding component and the pressing component.

[0050] Step S2: Activate the first lifting module, drive the mounting plate to lower the unfolding component and the pressing component as a whole, so that the pressing component presses against the upper surface of the sample, and presses and fixes the glue-pouring fixture onto the positioning module.

[0051] Specifically, the first lifting module is activated, extending its output end and driving the mounting plate to descend along the Z-axis. The mounting plate then moves the unfolding assembly and the pressing assembly fixed to it downwards synchronously. The pressing block of the pressing assembly first contacts the upper surface of the sample in the potting fixture. As the mounting plate continues to descend, the second reset elastic element is compressed, and the pressing block gradually presses the sample under the elastic buffering effect, firmly pressing and fixing the entire potting fixture onto the fixed seat of the positioning module, preventing the potting fixture from shifting or jumping due to force during the subsequent unlocking process. During this process, the two push blocks of the unfolding assembly descend with the mounting plate to a position close to the side wings, where they can contact the inner surface of the side wings.

[0052] Step S3: Activate the second lifting module to drive the movable block to descend to a first height, so that the two push blocks contact the corresponding side wings respectively. As the movable block continues to descend, the transmission drive unit converts the vertical movement of the movable block into the horizontal synchronous movement of the two push blocks moving away from each other. The two push blocks push the left and right side wings to rotate outward synchronously at a first angle, so that the side wings are tilted relative to the base.

[0053] Specifically, keeping the first lifting module in its current state unchanged, the second lifting module is activated, extending its output end and driving the movable block to descend a first height along the Z-axis. As the movable block descends, the two cams also descend. When the cams contact the first inclined surface on the sliding part of the push block, the cams roll and push along the first inclined surface, converting the vertical movement of the movable block into a synchronous, opposite, horizontal movement of the two push blocks. The pushing parts of the two push blocks respectively push against the inner surfaces of the left and right wings, driving the wings to synchronously rotate outward at a first angle (e.g., rotating to an angle of 30°~60° with the base, preferably 45°), causing the wings to be tilted relative to the base. The glue-filling fixture is initially opened, and the through holes on the side wings disengage as the side wings rotate, but still maintain partial restraint.

[0054] Step S4: Maintain the current state of the second lifting module, continue to start the first lifting module, drive the entire mounting plate to continue to descend to the second height, and while the two push blocks are moving horizontally outward away, move downward synchronously with the mounting plate, push the left and right wings to continue to rotate outward synchronously to the second angle, until the left and right wings are parallel to the base, and complete the unlocking.

[0055] Specifically, keeping the second lifting module in its current state (i.e., the moving block and cam maintain their current height), the first lifting module is activated again, causing its output end to extend further, driving the entire mounting plate to continue descending to a second height. During this process, the two push blocks, while already moving horizontally outwards, also move downwards synchronously with the mounting plate. The second inclined surface B at the lower end of the pusher further pushes downwards against the inner surface of the side wing, simultaneously applying an outward horizontal thrust and a downward pressing force to the side wing, driving the side wing to continue rotating outwards at a second angle until both sides are fully extended to a parallel state with the base (i.e., a horizontal state). At this point, the through holes on the side wing are completely disengaged from the side ears, the potting fixture is fully unlocked, and the sample can be freely removed.

[0056] Preferably, the second angle is the difference between the first angle and 90°, so that the two wings eventually flip from the tilted state to the horizontal state.

[0057] Step S5: After removing the sample, drive the first lifting module and the second lifting module to move in opposite directions, so that the mounting plate and the movable block rise and reset, and the two wings automatically fall back to the initial locked state perpendicular to the base, completing the overall reset.

[0058] Specifically, after the operator or automatic material handling robot removes the unlocked sample from the dispensing fixture, the first lifting module is first driven to reverse (output end retracts), causing the mounting plate to rise and reset to its initial height. Subsequently, or simultaneously, the second lifting module is driven to reverse (output end retracts), causing the movable block to rise and reset to its initial height. As the movable block rises, the cam moves upward and gradually disengages from the first inclined plane, releasing the pushing force on the push block. Under the elastic restoring force of the first horizontally positioned reset elastic element, the two push blocks synchronously approach each other in the horizontal direction, eventually returning to their initial positions. After the push blocks disengage from the side wings, the two side wings of the dispensing fixture automatically fall downward under their own weight, sequentially returning from a horizontal state to an inclined state, and finally returning to the initial locked state perpendicular to the base. The side ears re-embed into the through holes, and the dispensing fixture returns to its initial locked state, ready to enter the next work cycle.

[0059] Preferably, in step S5, the first lifting module and the second lifting module can move in opposite directions simultaneously to shorten the reset time and improve work efficiency. More preferably, during the reset process, the third lifting module can be activated simultaneously to drive the fixed base to descend and transfer the unlocked and sample-removed potting fixture to the next work station or unloading position.

[0060] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic unlocking and resetting mechanism, characterized in that, It includes a positioning module for placing and positioning a glue-dispensing fixture, and an unlocking module disposed above the positioning module; the unlocking module includes a pressing component that applies pressure to the sample of the glue-dispensing fixture to press and fix the glue-dispensing fixture onto the positioning module, and an unfolding component that simultaneously unfolds the two wings of the glue-dispensing fixture outward. The unfolding assembly includes a mounting plate and a first lifting module for driving the mounting plate to move; the mounting plate is provided with a movable block that can move along the Z-axis, and a second lifting module for driving the movable block to move; below the movable block are two push blocks that can move away from or towards each other in the horizontal direction; the two push blocks correspond to the left and right wings of the glue-pouring fixture respectively; The two push blocks are connected to the movable block via a transmission drive unit, which is used to convert the linear motion of the movable block along the Z-axis into linear motion of the two push blocks along the horizontal direction.

2. The automatic unlocking and reset mechanism according to claim 1, characterized in that, The unfolding component has two unlocking stages during the unlocking process: During the first unlocking stroke, the second lifting module drives the movable block to descend to a first height, so that the two push blocks contact the inner surface of the corresponding side wings respectively. Under the action of the transmission drive unit, they move away from each other in the horizontal direction at the same time, pushing the left and right side wings to flip outward at the same time by a first angle, so that the two side wings of the glue potting fixture are unfolded outward to be tilted with their base, and the glue potting fixture is initially opened. During the second unlocking stroke, the first lifting module drives the mounting plate to continue to descend to a second height, causing the two push blocks to simultaneously apply outward horizontal thrust and downward pressing force to the two side wings, pushing the left and right side wings to continue to rotate outward synchronously to a second angle until the two side wings of the glue-filling fixture are fully unfolded to be parallel to its base, fully opening the glue-filling fixture, so that the side ears are completely disengaged from the through hole, and the glue-filling fixture is fully unlocked.

3. The automatic unlocking and reset mechanism according to claim 1 or 2, characterized in that, The transmission drive unit includes two cams rotatably disposed at the lower end of the movable block, and a first reset elastic element horizontally disposed between the two push blocks; at least a portion of the cams protrudes below the movable block, and the two cams respectively form a rolling engagement with the corresponding push blocks; the two push blocks are connected by the first reset elastic element, which is used to drive the two push blocks to automatically move closer to each other in the horizontal direction and reset after the two cams release their pushing force.

4. The automatic unlocking and reset mechanism according to claim 3, characterized in that, The pressing assembly is located between the two push blocks; the pressing assembly includes a cantilever fixedly connected to the mounting plate, a pressing block disposed below the cantilever and corresponding to the positioning module, and a second reset elastic member connected between the cantilever and the pressing block; the pressing block is used to press against the sample upper surface of the potting fixture when the mounting plate descends, and the second reset elastic member is used to provide elastic buffer and reset force to the pressing block.

5. The automatic unlocking and reset mechanism according to claim 3, characterized in that, The pusher includes a sliding part slidably connected to the X-axis slide rail on the mounting plate, a connecting part fixedly connected to the sliding part, and a pushing part fixedly disposed at the lower end of the connecting part; the sliding part is provided with a pressing part for pressing and fixing the sample of the glue-pouring fixture on the inner side of the connecting part; the two surfaces of the two sliding parts are respectively provided with outward and upward inclined first inclined surfaces, and the two first inclined surfaces are respectively used to form a rolling pushing engagement with the corresponding cam, so as to convert the vertical pressure of the cam into a lateral thrust that drives the sliding part to slide in the horizontal direction.

6. The automatic unlocking and reset mechanism according to claim 1, characterized in that, The pushing part has a long strip structure, and its length direction is adapted to the width direction of the side wing of the glue-pouring fixture; the lower end of the pushing part is provided with a second inclined surface that slopes outward and upward. The second inclined surface is used to push against the inner surface of the side wing when the pushing part descends, so as to convert the vertical movement into the outward flipping movement of the side wing.

7. The automatic unlocking and reset mechanism according to any one of claims 1, 2, and 4-6, characterized in that, The positioning module includes a fixed base and a third lifting module for driving the fixed base to move along the Z-axis; the upper surface of the fixed base is provided with a positioning protrusion, and the lower surface of the glue-filling fixture is provided with a positioning groove that engages with the positioning protrusion for positioning; the third lifting module is used to drive the fixed base to rise to receive the glue-filling fixture, or to bring it under the glue-filling fixture away from the unfolding component.

8. The automatic unlocking and reset mechanism according to claim 7, characterized in that, The positioning protrusion is located at the center of the upper surface of the fixing base, and the positioning protrusion has a cross-shaped protrusion structure; the positioning groove is located at the center of the lower surface of the glue-filling fixture, and the shape of the positioning groove is adapted to the shape of the positioning protrusion, for limiting the glue-filling fixture in the circumferential direction.

9. The automatic unlocking and reset mechanism according to claim 8, characterized in that, The extension lines of the central axis of the pressing assembly, the central axis of the positioning groove, and the central axis of the positioning protrusion coincide.

10. An automatic unlocking and resetting method, employing the automatic unlocking and resetting mechanism as described in any one of claims 1-9, characterized in that, The method includes the following steps: Step S1: Place the glue-dispensing fixture on the positioning module and position the glue-dispensing fixture using the positioning module; Step S2: Activate the first lifting module, drive the mounting plate to lower the unfolding component and the pressing component as a whole, so that the pressing component presses against the upper surface of the sample, and presses and fixes the potting fixture onto the positioning module; Step S3: Start the second lifting module to drive the movable block to descend to the first height, so that the two push blocks contact the corresponding side wings respectively. As the movable block continues to descend, the transmission drive unit converts the vertical movement of the movable block into the horizontal synchronous movement of the two push blocks moving away from each other. The two push blocks push the left and right side wings to rotate outward synchronously at the first angle, so that the side wings are tilted relative to the base. Step S4: Maintain the current state of the second lifting module, continue to start the first lifting module, drive the entire mounting plate to continue to descend to the second height, and while the two push blocks are moving horizontally outward away, move downward synchronously with the mounting plate, push the left and right wings to continue to rotate outward synchronously to the second angle, until the two wings are parallel to the base, and complete the unlocking. Step S5: After removing the sample, drive the first lifting module and the second lifting module to move in opposite directions, so that the mounting plate and the movable block rise and reset, and the two wings automatically fall back to the initial locked state perpendicular to the base, completing the overall reset.

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