Locking device and material transfer equipment

Abstract

The invention discloses a locking device and material transfer equipment. The locking device comprises a main body, a locking mechanism, a first elastic part and an unlocking mechanism, the main body is provided with a containing cavity, the locking mechanism is arranged on one side of the main body, at least part of the locking mechanism is located in the containing cavity, the locking mechanism can reciprocate in the first direction to stretch out or retract into the containing cavity, the first elastic piece is arranged in the containing cavity, one end of the first elastic piece abuts against the inner side wall of the containing cavity, and the other end of the first elastic piece is connected with the part, located in the containing cavity, of the locking mechanism. The unlocking mechanism is arranged on the other side of the main body, at least part of the unlocking mechanism is located in the containing cavity, the unlocking mechanism is movably connected with the part, located in the containing cavity, of the locking mechanism, the unlocking mechanism can reciprocate in the second direction, the second direction is relatively perpendicular to the first direction, and the unlocking mechanism drives the locking mechanism to retract into the containing cavity; and the locking mechanism and one side of the main body form a first sliding surface for the supporting plate to slide. The locking device is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The present invention relates to the field of solid-state drive production testing, and particularly to a locking device and a material transfer device. Background Art

[0002] A solid-state drive (SSD) is a data storage device that uses flash memory chips as the storage medium, and has the advantages of high speed, low power consumption, noiselessness, earthquake resistance, etc. After the production and manufacturing of the solid-state drive are completed, factory testing is required to test its stability and reliability to ensure compliance with quality standards and user requirements. During the testing process, loading and unloading are involved, and a material cart is used to transfer the solid-state drive to the testing device so that the testing device can obtain the solid-state drive on the material cart for testing.

[0003] Currently, most material carts for transferring solid-state drives are provided with multiple placement positions on the vehicle frame, and an opening is provided on one side of each placement position to facilitate the taking and placing of the pallet and the tray. Among them, the pallet is used to carry the tray containing the solid-state drive; during the transfer process, in order to prevent the pallet and the tray from slipping out of the placement position, a locking device is provided at the opening of the placement position, and a driving device (such as a cylinder, a chute, etc.) is used to drive the locking device to prevent the pallet and the tray from moving horizontally relative to the placement position; when it is necessary to take out the pallet and the tray, a photoelectric sensor is installed on the vehicle frame to feedback an acquisition signal to the electronic control device, and the electronic control device controls the driving device to drive the locking device to release the limit on the pallet according to the acquisition signal, so as to facilitate the taking out of the pallet from the placement position.

[0004] However, this solution for preventing the pallet and the tray from slipping out of the placement position has the following deficiencies: Since a photoelectric sensor is installed on the vehicle frame to feedback an electrical signal to the host computer, and the host computer controls the driving component to drive the locking device to work according to the electrical signal, thus, during the transfer process, in order to prevent the pallet and the tray from slipping out, a corresponding air circuit, circuit, electronic control device and many other additional facilities are required, making the structure of the locking device complex and the cost high. Summary of the Invention

[0005] The main object of the present invention is to propose a locking device, aiming to solve the technical problem of the complex structure and high manufacturing cost of the locking device of the existing material cart.

[0006] To achieve the above object, the present invention proposes a locking device, which includes:

[0007] A main body having an accommodation cavity;

[0008] A locking mechanism provided on one side of the main body, at least part of the locking mechanism is located in the accommodation cavity, and the locking mechanism can reciprocate along a first direction to extend or retract into the accommodation cavity;

[0009] A first elastic member is disposed in the accommodation cavity. One end of the first elastic member abuts against the inner side wall of the accommodation cavity, and the other end is connected to a portion of the locking mechanism located in the accommodation cavity to elastically support the locking mechanism.

[0010] An unlocking mechanism is disposed on the other side of the main body. At least a part of the unlocking mechanism is located in the accommodation cavity. The unlocking mechanism is movably connected to a portion of the locking mechanism located in the accommodation cavity. The unlocking mechanism can reciprocate along a second direction, which is perpendicular to the first direction. The unlocking mechanism drives the locking mechanism to retract into the accommodation cavity, so that a first sliding surface is formed between the locking mechanism and one side of the main body for the pallet to slide.

[0011] In some embodiments, the unlocking mechanism includes:

[0012] An unlocking member, one end of which is located inside the main body and the other end extends out of the outer side wall of the main body. A guiding column is provided on the outer side wall of the unlocking member.

[0013] The locking mechanism includes:

[0014] A locking member, one end of which is located in the accommodation cavity and the other end extends out of the main body. A first avoidance portion for the unlocking member to pass through and a guiding groove for the guiding column to extend into are provided at one end of the locking member located in the accommodation cavity. The first avoidance portion communicates with the guiding groove. The guiding column can reciprocate along the inner side wall of the guiding groove to make the locking member extend out of or retract into the accommodation cavity.

[0015] In some embodiments, two guiding columns are oppositely provided on the outer side wall of the unlocking member, and two guiding grooves are oppositely provided on the locking member for the two guiding columns to extend into.

[0016] In some embodiments, the guiding groove includes a first side wall, a second side wall, and a third side wall connected end to end. The first side wall is parallel to the second direction, and the connection between the third side wall and the first side wall and the second side wall is provided at an angle.

[0017] In some embodiments, the first avoidance portion is a strip-shaped opening extending along the first direction for avoiding the unlocking member.

[0018] In some embodiments, the unlocking device further includes:

[0019] A second elastic member is located in the accommodation cavity. One end of the second elastic member is connected to the inner side wall of the accommodation cavity, and the other end of the second elastic member is connected to the other end of the unlocking member for pushing the unlocking member along the second direction.

[0020] In some embodiments, two second avoidance portions are oppositely provided on the side wall of the unlocking member, and the two second avoidance portions extend along the second direction.

[0021] The present invention further provides a material transfer device, including:

[0022] A main body, including a loading and unloading opening and a plurality of storage units. The loading and unloading opening is formed on the side wall of the main body, and the plurality of storage units are stacked inside the main body. One end of the plurality of storage units is communicated with the loading and unloading opening for loading and unloading pallets;

[0023] A sliding assembly, provided at the bottom of the main body, for driving the main body to move;

[0024] And the aforementioned locking device, which is provided at one end of the storage unit for limiting the pallet in the storage unit.

[0025] In some embodiments, the storage unit includes at least two guide rails. The two guide rails are oppositely and spaced inside the main body for carrying the pallet, and the locking device is provided at one end of one of the two guide rails close to the loading and unloading opening.

[0026] In some embodiments, the locking devices are respectively provided at one ends of the two guide rails close to the loading and unloading opening.

[0027] The beneficial effect of the technical solution of the present invention is that: the locking mechanism is arranged in the accommodating cavity and can reciprocate along the first direction, so that the locking mechanism can extend out or retract into the accommodating cavity, which is used to prevent the pallet from sliding or form a first sliding surface with one side of the main body for the pallet to slide. By arranging the first elastic member in the accommodating cavity, one end abuts against the inner side of the accommodating cavity, and the other end is connected to the locking mechanism for elastically supporting the locking mechanism. Then, by arranging the unlocking mechanism in the accommodating cavity and movably connecting it with the part of the locking mechanism located in the accommodating cavity; pushing the unlocking mechanism to extend into the accommodating cavity along the second direction will simultaneously drive the locking mechanism to retract into the accommodating cavity, so that the locking device is switched to the unlocking state. Canceling the pushing force on the unlocking mechanism, under the action of the first elastic member, the locking mechanism is pushed out of the accommodating cavity, and at the same time, the unlocking mechanism is reset to switch the locking device to the locking state. Compared with the existing solutions of installing other additional configurations such as photoelectric sensors, driving devices, and electronic control devices on the frame of the material truck, the locking device of this embodiment has a simple structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of an embodiment of the locking device of the present invention;

[0029] Figure 2 It is a schematic internal structural diagram of an embodiment of the locking device of the present invention;

[0030] Figure 3 Schematic diagram of the internal structure of an embodiment of the locking device of the present invention;

[0031] Figure 4 Top view of an embodiment of the locking device of the present invention;

[0032] Figure 5 is Figure 4 Cross-sectional view taken along line A-A in

[0033] Figure 6 Schematic diagram of the structure of the locking component;

[0034] Figure 7 Schematic diagram of the structure of the material transfer equipment of the present invention;

[0035] Figure 8 is Figure 7 Enlarged view at position A in

[0036] Explanation of the reference numerals in the drawings:

[0037]

[0038]

[0039] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0040] Next, the solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0043] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] The present invention provides a locking device, which is applied to a material transfer vehicle, for example, to prevent components such as a pallet placed in the material transfer vehicle from coming out.

[0045] As Figure 1 、 Figure 2 shown, the locking device provided by the present invention includes a main body 100, a locking mechanism 200 and an unlocking mechanism 300, wherein:

[0046] The main body 100 has a receiving cavity 100a;

[0047] At least part of the locking mechanism 200 is located in the receiving cavity 100a. The locking mechanism 200 can reciprocate along the first direction 200a to extend or retract into the receiving cavity 100a, and is used to limit or release the pallet. The locking mechanism 200, as a component to prevent the pallet from coming out of the material transfer vehicle, can be in the shape of a plate, a strip, etc., and is not particularly limited herein. Among them, the pallet is used to carry a tray containing a solid-state drive, so that the tray can be stably placed in the storage unit.

[0048] A first elastic member 202 is provided in the receiving cavity 100a. One end of the first elastic member 202 abuts against the inner side wall of the receiving cavity 100a, and the other end is connected to the part of the locking mechanism 200 located in the receiving cavity 100a to elastically support the locking mechanism 200. The elastic member, as a component for elastically supporting the locking mechanism 200, can be a spring or other elastic members with the same functional effect.

[0049] At least part of the unlocking mechanism 300 is located in the receiving cavity 100a. The unlocking mechanism 300 is movably connected to the part of the locking mechanism 200 located in the receiving cavity 100a. The unlocking mechanism 300 can reciprocate along the second direction 300a, and the second direction 300a is perpendicular to the first direction 200a. The unlocking mechanism 300 drives the locking mechanism 200 to retract into the receiving cavity 100a, so that the outer side wall of the main body 401 forms a first sliding surface 100b for the pallet to slide. It should be noted that, in this embodiment, the unlocking mechanism 300 can be a push rod. Exemplarily, one end of the push rod is located in the receiving cavity 100a, and the other end penetrates through the side wall of the main body 100 and extends a certain distance to form a pressing part to receive and transmit an external acting force.

[0050] In addition, in this embodiment, a material taking robot is used to take materials and trigger the locking device.

[0051] During use of the locking device of this embodiment, before placing the pallet carrying the workpiece into the material transfer equipment, the locking mechanism 200 is moved along the second direction 300a by pushing the unlocking mechanism 300, and the part of the unlocking mechanism 300 located in the accommodating chamber 100a drives the locking mechanism 200 to move along the first direction 200a. At the same time, the locking mechanism 200 compresses the first elastic member 202. As the depth of the unlocking mechanism 300 entering the accommodating chamber 100a increases, the part of the locking mechanism 200 extending out of the main body 100 also retracts into the accommodating chamber 100a, and continuously applies a driving force to the unlocking mechanism 300 to maintain the formation of the first sliding surface 100b, so that the pallet can slide smoothly into the storage unit of the material transfer equipment 400 (in this embodiment, the locking mechanism 200 can be flush with the outer wall of the main body 100, or it can be lower than the outer wall of the main body 100).

[0052] When the pallet carrying the tray is placed in the storage unit, the pushing force on the unlocking mechanism 300 can be cancelled, and the locking mechanism 200 quickly pops out under the action of the first elastic member 202, extends out of the accommodating cavity 100a, and switches to a locked state to limit the pallet in the storage unit to prevent the pallet from escaping from the storage unit. At the same time, the unlocking mechanism 300 is also reset under the action of the first elastic member 202.

[0053] When the loading mechanism needs to pick up materials, the executing end of the picking robot moves to the locking device and slightly adjusts the position to face the unlocking mechanism 300. The executing end of the picking robot moves along the first direction 200a, applies a driving force to the unlocking mechanism 300, so that the unlocking mechanism 300 moves along the second direction 300a, thereby driving the locking mechanism 200 to move along the first direction 200a and retract into the accommodating cavity 100a to form a first sliding surface 100b. At the same time, the other executing end of the picking robot clamps the pallet, and while continuing to generate a clamping force on the pallet, drags the pallet away from the locking device, so that the bottom wall of the pallet slides along the first sliding surface 100b to the material tray lifting assembly of the hard disk testing equipment (including the material table and the lifting mechanism) to facilitate subsequent hard disk testing work.

[0054] The locking device of this embodiment is configured such that the locking mechanism 200 is disposed in the accommodation cavity 100a and can reciprocally slide along the first direction 200a, enabling the locking mechanism 200 to extend out of or retract into the accommodation cavity 100a. It is used to limit the position of the pallet or form a first sliding surface 100b with the outer sidewall of the main body 100 for the pallet to slide. By arranging the first elastic member 202 in the accommodation cavity 100a, one end abuts against the inner part of the accommodation cavity 100a and the other end is connected to the locking mechanism 200, which is used to elastically support the locking mechanism 200. Then, by arranging the unlocking mechanism 300 in the accommodation cavity 100a and movably connecting it to the part of the locking mechanism 200 located within the accommodation cavity 100a; when the unlocking mechanism 300 is pushed to extend into the accommodation cavity 100a along the second direction 300a, the locking mechanism 200 is simultaneously driven to retract into the accommodation cavity 100a, switching the locking device to the unlocked state. When the driving force on the unlocking mechanism 300 is cancelled, under the action of the first elastic member 202, the locking mechanism 200 is quickly pushed out of the accommodation cavity 100a. At the same time, the unlocking mechanism 300 is reset, switching the locking device to the locked state to limit the position of the pallet. Compared with the existing solutions that install additional configurations such as photoelectric sensors, driving devices, and electronic control devices on the vehicle frame, the locking device of this embodiment has a simple structure, does not require additional facilities, and reduces the manufacturing cost. In addition, the locking device of this embodiment can achieve the limiting function only by using a mechanical structure, is less affected by other external factors such as the use scenario and environment, and improves the stability and reliability.

[0055] As Figure 2 , Figure 3 shown, in this embodiment, the unlocking mechanism 300 includes:

[0056] An unlocking component 301, one end is located inside the main body 100 and the other end extends out of the outer sidewall of the main body 100. A guiding column 301b is provided on the outer sidewall of the unlocking component 301;

[0057] The locking mechanism 200 includes:

[0058] A locking component 201, one end is located inside the accommodation cavity 100a and the other end extends out of the main body 100. At one end of the locking component 201 located in the accommodation cavity 100a, there is a first avoidance portion 201a for the unlocking component 301 to pass through, and a guiding groove 201b for the guiding column 301b to extend into. The first avoidance portion 201a communicates with the guiding groove 201b, and the guiding column 301b can reciprocally slide along the inner sidewall of the guiding groove 201b, enabling the locking component 201 to extend out of or retract into the accommodation cavity 100a. It should be noted that in this embodiment, the unlocking component 301 can be a rod-shaped push rod. Specifically, one end of the push rod extends into the accommodation cavity 100a and the other end is located outside the accommodation cavity 100a. Of course, in other embodiments, the unlocking component 301 can be plate-shaped, and no special limitation is made here.

[0059] Wherein, one end of the locking member 201 extending out of the accommodating cavity 100a is a flat surface, as Figure 1 shown. Of course, in other embodiments, it may be set as an inclined surface, or a combination of a flat surface and an inclined surface, but not limited thereto. It should be noted that, in this embodiment, the guiding groove 201b is a strip-shaped guiding groove 201b with an inclined setting, wherein the inclination angle of the strip-shaped guiding groove 201b is not particularly limited. Of course, in other embodiments, the shape of the guiding groove 201b may be triangular, conical, etc.

[0060] In one embodiment, a roller is provided on the guiding post 301b, and the rolling surface of the roller is in rolling contact with the inner side wall of the guiding groove 201b, which can improve the smoothness of the transmission between the unlocking member 301 and the locking member 201.

[0061] During the use of the locking device of this embodiment, if it is necessary to switch the locking device to the unlocking state, only a pushing force needs to be applied to the unlocking member 301, so that the part of the unlocking member 301 located outside the accommodating cavity 100a moves and retracts into the accommodating cavity 100a along the second direction 300a. At the same time, the outer side wall of the guiding post 301b contacts the inner side wall of the guiding groove 201b. Since the guiding groove 201b has a certain slope setting, the guiding post 301b presents an uphill state and applies a downward pressure to the inner side wall of the guiding groove 201b, so that the locking mechanism 200 retracts into the accommodating cavity 100a and compresses the first elastic member 202 at the same time. At this time, the other end of the locking member 201 is parallel to the outer side wall of the main body 100, forming a first sliding surface 100b for the supporting plate to slide.

[0062] If it is switched to the locking state, only the pushing force applied to the unlocking member 301 needs to be cancelled; after cancelling the pushing force applied to the unlocking member 301, the guiding post 301b no longer applies a downward pressure to the inner side wall of the guiding groove 201b. Under the action of the first elastic member 202, a pushing force is generated on the locking mechanism 200 in the direction away from the accommodating cavity 100a, and the end of the locking member 201 far from the first elastic member 202 is pushed out of the accommodating cavity 100a. At the same time, the guiding post 301b slides along the inner side wall of the guiding groove 201b, and through the transmission of the guiding post 301b, the unlocking member 301 moves in the direction away from the main body 100, and the reset can be realized. In this way, when it is necessary to switch the locking device to the unlocking state, only the unlocking member 301 needs to be pushed into the accommodating cavity 100a. If it is switched to the locking device, only the pushing force applied to the unlocking member 301 needs to be cancelled. Under the action of the first elastic member 202, the locking member 201 extends out of the accommodating cavity 100a, and at the same time, the unlocking member 301 is reset, which is very convenient.

[0063] To ensure uniform stress on the unlocking component 301 and the locking component 201 and improve reliability, in this embodiment, there are two guiding columns 301b and two guiding grooves 201b respectively. Specifically, two guiding columns 301b are provided oppositely on the outer side wall of the unlocking component 301, and two guiding grooves 201b are provided oppositely on the locking component 201 for the two guiding columns 301b to extend into. It should be noted that in this embodiment, the number of the guiding grooves 201b and the guiding columns 301b can be one, two, three, four, but not limited to this. During the process of switching between the unlocking state and the pre-locking state, the two guiding columns 301b contact the inner side walls of the two guiding grooves 201b, thus balancing the stress points of the guiding columns 301b and the guiding grooves 201b, making the transmission between the unlocking component 301 and the locking component 201 smoother. At the same time, it avoids the situation of fracture caused by uneven stress on the guiding columns 301b, improving the reliability.

[0064] After the picking manipulator obtains the pallet, the execution end of the picking manipulator cancels the continuous time driving force on the unlocking component 301. To enable the locking component 201 to extend out of the receiving cavity 100a more quickly, as Figure 6 shown, in this embodiment, the guiding groove 201b includes a first side wall 201c, a second side wall 201d, and a third side wall 201e. The first side wall 201c, the second side wall 201d, and the third side wall 201e are connected end to end, and the connection between the third side wall 201e and the first side wall 201c and the second side wall 201d is provided with an included angle. It should be noted that one end of the first side wall 201c is connected to one end of the second side wall 201d, and the first side wall 201c is perpendicular to the second side wall 201d (for example, the included angle between them is 90°), while one end of the third side wall 201e is connected to the other end of the first side wall 201c, and the other end of the third side wall 201e is connected to the other end of the second side wall 201d (for example, the included angle is 45°); when the picking manipulator cancels the driving force on the unlocking component 301, the guiding column 301b can quickly retract to the origin along the first side wall 201c. At the same time, under the action of the first elastic member 202, the locking component 201 quickly extends out of the receiving cavity 100a, further improving the state switching speed of the locking device.

[0065] To further improve the switching speed of the locking device, as Figure 4 and Figure 5 shown, in this embodiment, the unlocking mechanism 300 further includes:

[0066] The second elastic member 302 is located within the accommodation cavity 100a. One end of the second elastic member 302 is connected to the inner sidewall of the accommodation cavity 100a, and the other end of the second elastic member 302 is connected to the other end of the unlocking member 301, and is configured to push the unlocking member 301 to move in the second direction 300a for resetting. It should be noted that, in this embodiment, the second elastic member 302 is a spring. After the picking manipulator no longer applies a push force to the unlocking member 301, under the action of the second elastic member, the unlocking member 301 is pushed in a direction away from the sidewall of the accommodation cavity 100a, and the guiding column 301b slides along the first sidewall 201c. At the same time, the first elastic member 202 pushes the locking member 201 to move in a direction away from the bottom wall of the accommodation cavity 100a, so that it quickly extends out of the accommodation cavity 100a, improving the efficiency.

[0067] In another embodiment, the second elastic member 302 is a slow-rebound nitrogen spring, that is, when the execution end of the picking manipulator cancels the pushing force on the unlocking member 301, the slow-rebound nitrogen spring enters the rebound preparation stage, and will continue to maintain the formation of the first sliding surface 100b, providing sufficient working time for the picking manipulator to facilitate dragging the pallet to slide over the surface of the first sliding surface 100b. When the pallet is completely taken out, the slow-rebound nitrogen spring then starts to rebound, slowly pushing the unlocking member 301 to move in a direction away from the sidewall of the accommodation cavity 100a. At the same time, the unlocking member 301 drives the locking member 201 to move in a direction away from the bottom wall of the accommodation cavity 100a until the locking member 201 and the unlocking member 301 are in place.

[0068] To make the overall structure of the locking device more compact and smaller, in this embodiment, as Figure 2 、 Figure 3 、 Figure 5 shown, the unlocking member 301 is passed through the locking member 201. Since the guiding groove 201b is provided with a certain inclination angle, when the locking member 201 expands and contracts in the first direction 200a, it will conflict with the unlocking member 301 passing through the inside. Therefore, in this embodiment, a first avoidance portion 201a is provided on the portion of the locking member 201 located in the accommodation cavity 100a. Specifically, the first avoidance portion 201a is a strip-shaped opening that extends along the first direction 200a for avoiding the unlocking member 301. When the guiding column 301b presses down on the sliding groove, the held member retracts into the accommodation cavity 100a in the first direction 200a. At the same time, the unlocking member 301 passing through the locking member 201 moves within the strip-shaped opening and does not conflict with the locking member 201. In this way, while ensuring the smooth operation of the locking member 201 and the unlocking member 301, the overall volume is reduced.

[0069] As Figure 2As shown, in this embodiment, to further make the mechanism of the locking device compact, a second avoidance portion is provided on the unlocking member 301. Specifically, two second avoidance portions 301a are oppositely provided on the side wall of the unlocking member 301, and the two second avoidance portions 301a extend along the second direction 300a. It can be understood that the second avoidance portion in this embodiment can be set as a plane (for example, the whole unlocking member 301 is flat). Of course, in other embodiments, the unlocking member 301 can be plate-shaped. Exemplarily, the plate-shaped unlocking member 301 is parallel to the first direction 200a and is inserted into the locking member 201, so as to further reduce the volume of the locking device, make the whole more compact, and reduce the space occupancy rate. When the locking member 201 reciprocates along the first direction 200a, the two second avoidance portions 301a slide along the inner side wall of the strip-shaped opening.

[0070] The present invention further provides a material transfer device 400. Refer to Figure 7 and Figure 8 , the material transfer device 400 includes:

[0071] A main body 401, including a material taking and placing opening 401b and a plurality of storage units. The material taking and placing opening 401b is opened on the side wall of the main body 401, and the plurality of storage units are stacked inside the main body 401. One end of the plurality of storage units is communicated with the material taking and placing opening 401b for taking and placing pallets; in one embodiment, the other end of the plurality of storage units can be communicated with a feeding opening 401a. Among them, the feeding opening 401a is only used for putting pallets in. That is to say, when the pallet enters from the feeding opening 401a and is completely located in the storage unit, the limiting member at the feeding opening 401a locks the pallet; when it is necessary to take out the pallet, the locking device can be unlocked and taken out from the material taking and placing opening 401b; in this way, it can be avoided that during the transfer process, due to the inclination of the material transfer device 400, the tray slips out from the feeding opening 401a, which is beneficial to improving the transfer safety;

[0072] A sliding assembly 403, provided at the bottom of the main body 401 for driving the main body 401 to move;

[0073] And the locking device of the above embodiment. The locking device is provided at one end of the storage unit for limiting the pallet in the storage unit. For the specific structure of the locking device, refer to the above embodiment. Since the material transfer device 400 adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0074] During the operation of the material transfer device 400 in this embodiment, first, the loading manipulator or the operator applies a driving force to the unlocking component 301 to switch the locking device to the unlocked state, that is, the locking component 201 retracts into the accommodation cavity 100a, so that a first sliding surface 100b is formed on one side wall of the main body 100. Then, the pallet carrying the tray can be placed through the loading and unloading opening 401b and pushed into the storage unit. Then, under the action of the first elastic member 202 and the second elastic member 302, the locking device is switched to the locking state to complete the loading work.

[0075] Through the sliding assembly 403 arranged at the bottom of the main body 401 of the material transfer device 400, the main body 401 is moved to the test device to achieve transfer. During the transfer process, the pallet placed in the storage unit is limited by the locking device to prevent it from falling out (when passing through a sloping ground, the main body 401 will tilt). Finally, after the material transfer device 400 moves to the material taking area of the test device, the material taking mechanism hand moves to the loading and unloading opening 401b. While grasping the pallet, the unlocking component 301 is triggered to switch the locking device to the unlocked state, so that the locking mechanism 200 retracts into the accommodation cavity 100a, and a first sliding surface 100b is formed on one side wall of the main body 100 for the pallet to pass through. Finally, under the action of the first elastic member 202 and the second elastic member 302, the locking component 201 and the unlocking component 301 are reset.

[0076] In order to enable the pallet to be stably placed in the storage unit, in this embodiment, as Figure 7 shown, the storage unit includes at least two guide rails 402a. The two guide rails 402a are relatively arranged inside the main body 401 and are used to carry the pallet. The locking device is arranged at one end of one of the two guide rails 402a. It should be noted that in this embodiment, only two guide rails 402a are taken as an example. Of course, in other embodiments, there can be three, four, etc. Among them, a locking device is arranged at one end of the guide rail 402a. When the locking device is in the unlocked state, the surface of the guide rail 402a is parallel and butted with the first sliding surface 100b. When the pallet is placed in the storage unit, the two guide rails 402a are evenly stressed and stably carry the pallet, and the solid-state hard drives placed in the tray can be stably transferred.

[0077] Furthermore, locking devices can be arranged at both ends of the two guide rails 402a. When the main body 401 of the material transfer device 400 passes through an inclined road surface, the pallet located in the loading and unloading unit will slide towards the direction of the loading and unloading opening 401b. At this time, the pallet is limited in the storage unit by the two locking devices, and both ends of the pallet are evenly stressed, avoiding the side deviation of the pallet and improving the reliability of the material transfer device 400.

[0078] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or any direct / indirect application in other related technical fields is included in the scope of protection of the present invention.

Claims

1. A locking device, characterized in that, Comprising: A main body having a receiving cavity; A locking mechanism provided on one side of the main body, at least part of the locking mechanism being located within the receiving cavity, the locking mechanism being reciprocally movable in a first direction to extend or retract into the receiving cavity; A first elastic member provided within the receiving cavity, one end of the first elastic member abutting against the inner side wall of the receiving cavity and the other end being connected to the part of the locking mechanism located within the receiving cavity to elastically support the locking mechanism; An unlocking mechanism provided on the other side of the main body, at least part of the unlocking mechanism being located within the receiving cavity, the unlocking mechanism being movably connected to the part of the locking mechanism located within the receiving cavity, the unlocking mechanism being reciprocally movable in a second direction, the second direction being perpendicular to the first direction, the unlocking mechanism driving the locking mechanism to retract into the receiving cavity so that a first sliding surface is formed between the locking mechanism and one side of the main body for the pallet to slide thereon.

2. The locking device according to claim 1, characterized in that, The unlocking mechanism includes: An unlocking member, one end being located within the main body and the other end extending out of the outer side wall of the main body, a guiding post being provided on the outer side wall of the unlocking member; The locking mechanism includes: A locking member, one end being located within the receiving cavity and the other end extending out of the main body, a first avoidance portion for the unlocking member to pass through and a guiding groove for the guiding post to extend into being provided at the end of the locking member located within the receiving cavity, the first avoidance portion communicating with the guiding groove, the guiding post being reciprocally slidable along the inner side wall of the guiding groove to cause the locking member to extend or retract into the receiving cavity.

3. The locking device according to claim 2, characterized in that, Two guiding posts are oppositely provided on the outer side wall of the unlocking member, and two guiding grooves are oppositely provided on the locking member for the two guiding posts to extend into.

4. The locking device according to claim 2, characterized in that, The guiding groove includes a first side wall, a second side wall and a third side wall connected end to end, the first side wall being parallel to the second direction, and the connection between the third side wall and the first side wall and the second side wall being provided at an angle.

5. The locking device according to claim 3, wherein, The first avoidance portion is a strip-shaped opening extending along the first direction for avoiding the unlocking member.

6. The locking device according to claim 2, wherein, The unlocking mechanism further includes: A second elastic member located within the receiving cavity, one end of the second elastic member being connected to the inner side wall of the receiving cavity and the other end being connected to the other end of the unlocking member for pushing the unlocking member in the second direction.

7. The locking device according to claim 2, wherein, Two second avoidance portions are oppositely provided on the side wall of the unlocking member, the two second avoidance portions extending along the second direction.

8. A material transfer device, characterized in that, Comprising: An ontology including a loading and unloading opening and a plurality of storage units, the loading and unloading opening being provided on the side wall of the ontology, the plurality of storage units being stacked inside the ontology, one end of the plurality of storage units communicating with the loading and unloading opening for loading and unloading pallets; A sliding assembly provided at the bottom of the ontology for driving the ontology to move; And the locking device according to any one of claims 1-7, the locking device being provided at one end of the storage unit for limiting the pallet within the storage unit.

9. The material transfer device according to claim 8, characterized in that, The storage unit includes at least two guide rails, the two guide rails are opposite and spaced inside the body, and are used for carrying the pallet, and the locking device is provided at one end of one of the two guide rails close to the loading and unloading opening.

10. The material transfer device according to claim 9, characterized in that, The locking device is respectively provided at one ends of the two guide rails close to the loading and unloading opening.

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