Automatic screw locking equipment and automatic screw locking system and method

Abstract

The invention discloses automatic screw locking equipment, an automatic screw locking system and an automatic screw locking method, which are applied to the technical field of electronic equipment screw locking, the automatic screw locking equipment comprises an electric screwdriver locking device, and the electric screwdriver locking device comprises an electric screwdriver; mounting a flat plate on the electric screwdriver; the electric screwdriver locking guide sleeve is fixedly connected with the electric screwdriver, and the electric screwdriver locking guide sleeve is movably arranged on the electric screwdriver mounting flat plate; the limiting connecting piece is arranged on the electric screwdriver mounting flat plate, and the limiting connecting piece can slide relative to the stroke limiting hole so as to limit the relative movement stroke of the electric screwdriver locking guide sleeve and the electric screwdriver mounting flat plate; one end of the elastic component abuts against the electric screwdriver locking guide sleeve, and the other end of the elastic component abuts against the electric screwdriver mounting flat plate. According to the equipment, the reliability of the electric screwdriver can be guaranteed, damage to a to-be-machined part or a screw is reduced, the machining efficiency is improved, the machining cost is reduced, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device screw locking, and in particular to a screw automatic locking device, a screw automatic locking system and a method. BACKGROUND

[0002] Liquid-cooled electronic devices, such as liquid-cooled electronic devices, have become core devices supporting various network services, data processing and business operations. The GPU (Graphics Processing Unit) module cold plate in the liquid-cooled electronic device is very good and expensive in manufacturing process, and needs to be locked on the GPU module to provide cooling support. At this time, batch intelligent screw locking is particularly critical.

[0003] In the related art, the production and assembly process of the GPU module cold plate is performed by an operator holding a single ordinary electric screwdriver to lock each screw. However, due to the high mobility of the production line, unskilled operators may cause screw slipping, electric screwdriver running, torque data cannot be recorded and traced, and the operation efficiency is low, which increases the risk of product testing failure rate, affects the quality and timeliness of electronic device product delivery. And the fatigue of the operator leads to an increase in product failure rate, resulting in an increase in production cost.

[0004] Therefore, how to effectively improve the installation efficiency of the cold plate and reduce the failure rate is a technical problem that needs to be solved by the person skilled in the art at present. SUMMARY

[0005] The purpose of the present application is to provide a screw automatic locking device, a screw automatic locking system and a method for improving the installation efficiency of the cold plate on the GPU module, low failure rate and convenient operation.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions.

[0007] An automatic screw locking device, comprising an electric screwdriver locking device, the electric screwdriver locking device comprising: an electric screwdriver for fastening a screw of a component to be processed; an electric screwdriver mounting plate for driving the electric screwdriver to move towards or away from the screw, the electric screwdriver being movably mounted on the electric screwdriver mounting plate; an elastic component, one end of which abuts against the electric screwdriver and the other end of which abuts against the electric screwdriver mounting plate, when the electric screwdriver mounting plate drives the electric screwdriver to move to the position where the electric screwdriver abuts against the screw, the electric screwdriver mounting plate can continue to move towards the screw to compress the elastic component; a position detection component arranged on the electric screwdriver mounting plate and / or the electric screwdriver, the distance detection component being used to obtain the relative position between the electric screwdriver mounting plate and the electric screwdriver; a controller connected with the position detection component and the electric screwdriver, the controller being used to send an operation signal to the electric screwdriver when the relative position between the electric screwdriver mounting plate and the electric screwdriver is a target position, so that the electric screwdriver enters an operable mode.

[0008] An automatic screw locking system, comprising an automatic screw locking device; further comprising a fixed support, an automatic lifting backflow return plate machine, a speed-up chain assembly line body and a support carrier, the fixed support being arranged beside the speed-up chain assembly line body, the automatic screw locking device being arranged on the fixed support, the automatic lifting backflow return plate machine being used to place or take down the component to be processed on or from the support carrier, the support carrier being arranged on the speed-up chain assembly line body, the support carrier being used to carry the component to be processed; the speed-up chain assembly line body further comprising a blocking component and a jacking component, when the support carrier moves to a target area corresponding to the fixed support, the blocking component is used to block the support carrier, and the jacking component is used to jack up the component to be processed.

[0009] An automatic screw locking method, comprising the following steps: when the component to be processed moves to a target area, the electric screwdriver is controlled to move to a position corresponding to the screw of the component to be processed, and the electric screwdriver mounting plate is continuously pressed down; when the relative position between the electric screwdriver mounting plate and the electric screwdriver locking guide sleeve is a target position, an operation signal is sent to the electric screwdriver, so that the electric screwdriver enters an operable mode; a start signal is sent to the electric screwdriver, and the bit of the electric screwdriver rotates; when the torque value of the bit is greater than or equal to a target torque value, the electric screwdriver is controlled to stop, and the number of successful locking of the electric screwdriver is recorded; when the number of successful locking of the electric screwdriver is less than a target number, and the electric screwdriver is moved out of the target area, an alarm signal is sent.

[0010] The screw automatic locking equipment has the beneficial effects that: the electric screwdriver locking device is arranged, the electric screwdriver mounting plate in the electric screwdriver locking device supports and fixes the electric screwdriver through the electric screwdriver locking guide sleeve, the electric screwdriver locking guide sleeve is fixedly connected with the electric screwdriver, the electric screwdriver locking guide sleeve is slidingly arranged relative to the electric screwdriver mounting plate, when the electric screwdriver mounting plate moves, the electric screwdriver can be synchronously moved, when the electric screwdriver moves to the position corresponding to the screw, the head of the electric screwdriver touches the screw, then the electric screwdriver mounting plate is continuously pressed, the elastic component is compressed when the electric screwdriver mounting plate is continuously pressed, the electric screwdriver locking guide sleeve is provided with the stroke limiting hole, and the limiting connecting piece is arranged on the electric screwdriver mounting plate, therefore, when the electric screwdriver mounting plate moves to the bottom of the stroke limiting hole and is clamped with the limiting connecting piece, the electric screwdriver mounting plate cannot continue to move downward, at this time, it is indicated that the head of the electric screwdriver is pressed against the screw, the electric screwdriver can be started to perform the locking work, and the safe and reliable locking work is ensured.

[0011] The screw automatic locking equipment can ensure the use reliability of the electric screwdriver, reduce damage to the parts to be machined or the screw, improve the machining efficiency, reduce the machining cost, and facilitate operation.

[0012] In an embodiment, the electric screwdriver control handle is further arranged on the electric screwdriver mounting plate, the number of the electric screwdriver control handle is at least two, and the electric screwdriver control handle is arranged on the left and right sides of the electric screwdriver mounting plate; the electric screwdriver control handle is provided with a button, the button is connected with the controller, the controller is used for sending a starting signal to the electric screwdriver when the buttons on the electric screwdriver control handles are pressed, and the electric screwdriver is controlled to rotate after receiving the running signal and the starting signal. The above arrangement, through the arrangement of the electric screwdriver control handle, not only facilitates the position adjustment of the electric screwdriver mounting plate, but also facilitates the pressing operation of the operator by arranging the button on the electric screwdriver control handle, and the use is convenient; and through the arrangement of at least two electric screwdriver control handles, the starting signal is sent to the electric screwdriver only when the buttons on the electric screwdriver control handles are pressed, the reliability is improved by avoiding the misoperation of the operator.

[0013] The screw automatic locking system is provided with the screw automatic locking equipment, the screw automatic locking equipment has the above technical effects, and therefore the screw automatic locking system provided with the screw automatic locking equipment should have the same technical effects.

[0014] The screw automatic locking method provided by the application, through automatic control of the parts to be processed, when the parts to be processed move to the target area corresponding to the fixed support, it is automatically stopped without manual intervention, then the electric screwdriver is manually controlled to move to the position corresponding to the screw, and the electric screwdriver installation plate is continuously pressed down, when the relative position between the electric screwdriver installation plate and the electric screwdriver locking guide sleeve is the target position, at this time the electric screwdriver receives the starting signal and enters the standby state, then the electric screwdriver judges whether the assembly of the corresponding screw is completed through automatic detection of the torque value of the screw head, when the assembly of one screw is completed, the locking success number of the electric screwdriver is recorded, when the locking success number of the electric screwdriver is less than the target number and the electric screwdriver is moved out of the target area, an alarm signal is sent, that is, when the electric screwdriver has not completed the assembly of all screws and the electric screwdriver is moved out of the target area, the remaining screws are locked by the operator through the alarm signal, so as to avoid the problem that some screws on the parts to be processed are not locked before the parts to be processed are offline due to human calculation error, only when the locking success number of the electric screwdriver is greater than or equal to the target number, the electric screwdriver is moved out of the target area without sending an alarm signal, so as to ensure the processing reliability of the parts to be processed and improve the yield. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 The screw automatic locking system pipeline schematic diagram provided by the embodiment of the present application.

[0017] Figure 2 The installation and fixation schematic diagram of the screw automatic locking system provided by the embodiment of the present application.

[0018] Figure 3 The support carrier and the assembly of the parts to be processed in the screw automatic locking system provided by the embodiment of the present application.

[0019] Figure 4 The design scheme schematic diagram of the screw automatic locking equipment provided by the embodiment of the present application.

[0020] Figure 5 The working state schematic diagram of the screw automatic locking equipment provided by the embodiment of the present application.

[0021] Figure 6 The explosion schematic diagram of the screw automatic locking equipment provided by the embodiment of the present application.

[0022] Figure 7 Fig. 1 is a schematic diagram of a screw automatic locking equipment according to the present application. Figure 4 Fig. 2 is an enlarged view of A part of the screw automatic locking equipment shown in Fig. 1.

[0023] Figure 8 Fig. 3 is a schematic diagram of an electric screwdriver locking device in the screw automatic locking equipment according to the present application.

[0024] Figure 9 Fig. 4 is a front view of the screw automatic locking equipment according to the present application.

[0025] Figure 10 Fig. 5 is a B-B sectional view of the screw automatic locking equipment shown in Fig. 1. Figure 9

[0026] Figure 11-1 Fig. 6 is a schematic diagram of a resilient component in the screw automatic locking equipment according to the present application. Figure 10

[0027] Figure 11-2 Fig. 7 is a side view of an electric screwdriver locking guide sleeve in the screw automatic locking equipment according to the present application. Figure 10

[0028] Fig. 8 is a flow chart of a screw automatic locking method according to the present application. Figure 12

[0029] Fig. 9 is a schematic diagram of a specific embodiment of the screw automatic locking method according to the present application. Figure 13

[0030] ​​​Reference signs: 1 - automatic lifting backflow plate machine; 2 - operator; 3 - multiple-speed chain assembly line body; 4 - support carrier; 5 - liquid-cooled electronic device; 501 - electronic device outer case; 502 - cold plate; 503 - GPU module; 6 - fixed support; 7 - screw automatic locking device; 701 - device fixed support assembly; 701 -1 - fixed end plate; 701 -2 - angle rib support; 701 -3 - fixed support bottom plate; 702 - balancer guide shaft support assembly; 702 -1 - balancer flange support; 702 -2 - balancer guide shaft; 702 -3 - guide shaft top support; 703 - bearing seat sliding sleeve; 704 - balancer tension spring; 705 - device top fixed seat; 705 -1 - top support fixed plate; 705 -2 - top angle rib; 705 -3 - top fixed end plate; 705 -4 - guide sleeve; 706 - sliding sleeve cantilever beam; 707 - electric wrench fixed beam; 708 - electric wrench locking device; 708 -1 - electric wrench; 708 -2 - electric wrench control handle; 708 -2 -1 - start button; 708 -2 -2 - reset button; 708 -3 - electric wrench mounting plate; 708 -4 - limit ring; 708 -5 - bushing; 708 -6 - limit connecting piece; 708 -7 - elastic part; 708 -8 - electric wrench locking guide sleeve; 708 -8 -1 - stroke limiting hole; 708 -9 - wrench head; 708 -10 - handle fixed seat; 708 -11 - position detection part; 708 -12 - threaded part; 8 - display screen; 9 - controller. DETAILED DESCRIPTION

[0031] The core of the present application is to provide a screw automatic locking device, a screw automatic locking system and a method, which can realize automatic locking of cold plate screws and improve efficiency and operation accuracy.

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0033] It should be noted that the terms "center", "vertical direction", "transverse direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. The terms "parallel", "perpendicular", "equal" include the described case and the approximate case of the described case, and the approximate case is within the acceptable deviation range, which is determined by the ordinary skilled person considering the measurement being discussed and the error related to the measurement of the specific quantity, i.e. the limitation of the measurement system. For example, "parallel" includes absolute parallel and approximate parallel, and the acceptable deviation range of approximate parallel can be, for example, within 5°; "perpendicular" includes absolute perpendicular and approximate perpendicular, and the acceptable deviation range of approximate perpendicular can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, and the acceptable deviation range of approximate equality can be, for example, that the difference between the two equalities is less than or equal to 5% of either. For the ordinary skilled person in the art, the specific meaning of the above terms in the present application can be understood in specific cases.

[0034] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0035] In this embodiment, please refer to Figure 6 , Figure 10 , Figure 11-1 and Figure 11-2 , the screw automatic locking equipment 7 includes an electric screwdriver locking device 708, the electric screwdriver locking device 708 includes an electric screwdriver 708-1, an electric screwdriver mounting plate 708-3, an electric screwdriver locking guide sleeve 708-8, a limiting connecting piece 708-6 and an elastic component 708-7.

[0036] The electric screwdriver 708-1 is used to fasten the screws of the parts to be processed, such as Figure 3As shown, the component to be processed can be a liquid-cooled electronic device 5, which includes an electronic device outer case 501, a cold plate 502, and a GPU module 503, and screws are used to fix the cold plate 502 on the GPU module 503. The electronic device can be a server, and of course, the component to be processed can also be of other structures. The electric screwdriver mounting plate 708-3 is used to drive the electric screwdriver 708-1 to move towards the direction of approaching or moving away from the screw.

[0037] The electric screwdriver locking guide sleeve 708-8 is fixedly connected with the electric screwdriver 708-1 and movably arranged on the electric screwdriver mounting plate 708-3. The axial direction of the electric screwdriver locking guide sleeve 708-8 is perpendicular to the surface of the electric screwdriver mounting plate 708-3, and the axial direction of the electric screwdriver locking guide sleeve 708-8 is provided with a stroke limiting hole 708-8-1. Specifically, the stroke limiting hole 708-8-1 can be a strip-shaped hole or a waist-shaped hole, and the shape capable of limiting the movement stroke of the limiting connecting piece 708-6 can be used.

[0038] The limiting connecting piece 708-6 is arranged on the electric screwdriver mounting plate 708-3, and one end of the limiting connecting piece 708-6 extends into the stroke limiting hole 708-8-1. The limiting connecting piece 708-6 can slide relative to the stroke limiting hole 708-8-1 to limit the relative movement stroke of the electric screwdriver locking guide sleeve 708-8 and the electric screwdriver mounting plate 708-3. The limiting connecting piece can be a limiting pin, which is convenient for assembly.

[0039] The elastic component 708-7 is in abutment with one end of the electric screwdriver locking guide sleeve 708-8 and the other end of the electric screwdriver mounting plate 708-3. When the electric screwdriver mounting plate 708-3 drives the electric screwdriver 708-1 to move to abut with the screw, the electric screwdriver mounting plate 708-3 can continue to move towards the screw to compress the elastic component 708-7 until the limiting connecting piece 708-6 is clamped with the bottom of the stroke limiting hole 708-8-1.

[0040] Specifically, as shown in FIG. 8B, the electric screwdriver 708-1 is in abutment with the screw, and the electric screwdriver mounting plate 708-3 is in abutment with the limiting connecting piece 708-6. Figure 5As shown, the electric screwdriver 708-1 is provided with a screwdriver bit 708-9, which cooperates with the screw to rotate the screw forward or reverse through the screwdriver bit 708-9, thereby completing the assembly or disassembly of the screw; the part to be processed can be the cold plate 502 of the electronic device, such as the GPU module 503 cold plate 502 of the liquid-cooled electronic device 5; the electric screwdriver mounting plate 708-3 can be provided with several mounting holes, and each electric screwdriver 708-1 is arranged in a mounting hole; the elastic member 708-7 can be a spring; the electric screwdriver 708-1 can slide relative to the electric screwdriver mounting plate 708-3, and in the sliding process, the elastic member 708-7 is compressed; when the electric screwdriver mounting plate 708-3 loses external force, the elastic member 708-7 is elastically deformed to push the electric screwdriver mounting plate 708-3 back to its original position. In the electric screwdriver locking device 708, the electric screwdriver mounting plate 708-3 supports the electric screwdriver 708-1 through the electric screwdriver locking guide sleeve 708-8; when the electric screwdriver mounting plate 708-3 moves, it can drive the electric screwdriver 708-1 to move synchronously; when the electric screwdriver 708-1 moves to the position corresponding to the screw, the screwdriver bit 708-9 of the electric screwdriver 708-1 touches the screw; then continue to press the electric screwdriver mounting plate 708-3; because the electric screwdriver mounting plate 708-3 and the electric screwdriver locking guide sleeve 708-8 are provided with the elastic member 708-7, when the electric screwdriver mounting plate 708-3 is continuously pressed, the elastic member 708-7 is compressed; because the electric screwdriver locking guide sleeve 708-8 is provided with a stroke limiting hole 708-8-1, and the electric screwdriver mounting plate 708-3 is provided with a limiting connecting piece 708-6, under the action of the limiting connecting piece 708-6, when the electric screwdriver mounting plate 708-3 moves to the bottom of the limiting connecting piece 708-6 and the stroke limiting hole 708-8-1, the electric screwdriver mounting plate 708-3 cannot continue to move downward; at this time, it indicates that the screwdriver bit 708-9 of the electric screwdriver 708-1 has been pressed against the screw, and the electric screwdriver 708-1 can be turned on to perform locking work, ensuring the safe and reliable performance of the locking work. The screw automatic locking equipment 7 ensures the reliability of the electric screwdriver 708-1, reduces the damage to the part to be processed or the screw, improves the processing efficiency, reduces the processing cost, and is convenient to operate.

[0041] Further, the electric screwdriver locking guide sleeve 708-8 is detachably arranged on the electric screwdriver 708-1. The electric screwdriver locking guide sleeve 708-8 is detachably connected with the electric screwdriver 708-1. The electric screwdriver locking guide sleeve 708-8 is first arranged on the electric screwdriver mounting plate 708-3. Then, the electric screwdriver 708-1 is assembled on the electric screwdriver locking guide sleeve 708-8. After use, the electric screwdriver 708-1 can be detached from the electric screwdriver locking guide sleeve 708-8. The electric screwdriver locking guide sleeve 708-8 is fixed with the electric screwdriver 708-1 through a threaded structure, which is convenient for disassembly and assembly. The electric screwdriver locking guide sleeve 708-8 is movably arranged on the electric screwdriver mounting plate 708-3. The axial direction of the electric screwdriver locking guide sleeve 708-8 is perpendicular to the electric screwdriver mounting plate 708-3. The axial direction of the electric screwdriver locking guide sleeve 708-8 is coaxial with the electric screwdriver 708-1. The operation is convenient.

[0042] In some embodiments, in order to limit the electric screwdriver mounting plate 708-3 and the electric screwdriver locking guide sleeve 708-8, the electric screwdriver locking device 708 further comprises a limiting ring 708-4. The limiting ring 708-4 can be a circlip limiting ring 708-4. The limiting ring 708-4 is annular and arranged around the periphery of the electric screwdriver locking guide sleeve 708-8. The limiting ring 708-4 and the electric screwdriver locking guide sleeve 708-8 can adopt an interference fit. The limiting ring 708-4 is arranged on the upper portion of the electric screwdriver locking guide sleeve 708-8. The elastic component 708-7 is arranged on the lower portion of the electric screwdriver locking guide sleeve 708-8. The bottom of the electric screwdriver locking guide sleeve 708-8 is provided with a limiting protrusion for limiting the elastic component 708-7. The limiting protrusion can be an annular boss. The elastic component 708-7 can be a spring. The electric screwdriver mounting plate 708-3 is located between the limiting ring 708-4 and the elastic component 708-7. That is, one end of the elastic component 708-7 abuts against the limiting protrusion of the electric screwdriver locking guide sleeve 708-8. The other end abuts against the bottom surface of the electric screwdriver mounting plate 708-3. When the electric screwdriver mounting plate 708-3 moves downward relative to the electric screwdriver locking guide sleeve 708-8, the elastic component 708-7 is compressed. When the electric screwdriver 708-1 is removed from the screw, the elastic component 708-7 is reset. The electric screwdriver 708-1 and the electric screwdriver locking guide sleeve 708-8 are pushed downward. The limiting ring 708-4 abuts against the electric screwdriver mounting plate 708-3. Through the arrangement of the limiting ring 708-4 and the limiting protrusion, the electric screwdriver mounting plate 708-3 and the elastic component 708-7 can be limited respectively. The elastic component 708-7 is prevented from being detached from the electric screwdriver locking guide sleeve 708-8. Meanwhile, the electric screwdriver locking guide sleeve 708-8 is prevented from falling off from the electric screwdriver mounting plate 708-3.

[0043] In some embodiments, the bottom inner side of the electric screwdriver locking guide sleeve 708-8 is provided with a stepped portion, and the inner circumferential surface of the stepped portion is provided with a threaded portion 708-12. The electric screwdriver locking guide sleeve 708-8 is threadedly connected with the electric screwdriver 708-1 through the threaded portion 708-12, facilitating the disassembly and fastening of the two, and facilitating operation.

[0044] In some embodiments, the extension direction of the limiting connecting piece 708-6 is parallel to the electric screwdriver mounting flat plate 708-3, and one end of the limiting connecting piece 708-6 penetrates through the side wall of the electric screwdriver locking guide sleeve 708-8. Specifically, the limiting connecting piece 708-6 can be horizontally mounted on the electric screwdriver mounting flat plate 708-3, one end of the limiting connecting piece 708-6 is provided with a limiting block, the limiting block of the limiting connecting piece 708-6 is clamped on the side wall of the electric screwdriver mounting flat plate 708-3, and the end of the limiting connecting piece 708-6 away from the limiting block can extend to the position of the electric screwdriver locking guide sleeve 708-8 after penetrating through the electric screwdriver mounting flat plate 708-3. Further, the electric screwdriver locking guide sleeve 708-8 is provided with a stroke limiting hole 708-8-1, the end of the limiting connecting piece 708-6 is placed in the stroke limiting hole 708-8-1, and the limiting connecting piece 708-6 can slide relative to the stroke limiting hole 708-8-1 to limit the relative movement stroke of the electric screwdriver locking guide sleeve 708-8 and the electric screwdriver mounting flat plate 708-3. That is, the length of the stroke limiting hole 708-8-1 is the stroke of the limiting connecting piece 708-6, that is, the relative movement stroke of the electric screwdriver locking guide sleeve 708-8 and the electric screwdriver mounting flat plate 708-3. In actual use, different models of electric screwdriver locking guide sleeves 708-8 can be replaced to change the relative movement stroke of the electric screwdriver locking guide sleeve 708-8 and the electric screwdriver mounting flat plate 708-3, thereby improving the application range.

[0045] In some embodiments, the position detection component 708-11 is arranged on the electric screwdriver mounting flat plate 708-3 and / or the electric screwdriver 708-1, and the distance detection component is used to obtain the relative position between the electric screwdriver mounting flat plate 708-3 and the electric screwdriver 708-1. The controller 9 is connected with the position detection component 708-11 and the electric screwdriver 708-1, and the controller 9 is used to send a running signal to the electric screwdriver 708-1 when the relative position between the electric screwdriver mounting flat plate 708-3 and the electric screwdriver 708-1 is the target position, so that the electric screwdriver 708-1 enters the operable mode. The electric screwdriver 708-1 starts after receiving the running signal and the start signal.

[0046] Specifically, the position detecting component 708-11 can be a distance sensor, a to-position sensor or the like, which is capable of detecting the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver 708-1; the electric screwdriver 708-1 will only be started after receiving both the running signal sent by the controller 9 and the starting signal sent by the operator 2 or directly touching the starting switch of the electric screwdriver 708-1; when the electric screwdriver 708-1 does not receive the running signal sent by the controller 9, the electric screwdriver 708-1 will not be started even if it receives the starting signal.

[0047] Meanwhile, the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver 708-1 will change, i.e., the position of the electric screwdriver 708-1 remains unchanged, while the electric screwdriver mounting plate 708-3 will move to a position closer to the screw of the electric screwdriver 708-1, which indicates that the electric screwdriver 708-1 has applied sufficient pressure to the screw and met the assembly condition of the screw; then, the controller 9 is set to send the running signal to the electric screwdriver 708-1 when the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver locking guide sleeve 708-8 is the target position according to the detection result of the position detecting component 708-11, and then the starting signal can be sent to the electric screwdriver 708-1 by manual or automatic mode, and the electric screwdriver 708-1 will only be started after receiving both the running signal and the starting signal; in this application, the position detecting component 708-11 and the controller 9 are set to ensure that the electric screwdriver 708-1 can only be started when the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver locking guide sleeve 708-8 is the target position, which guarantees the reliability of the electric screwdriver 708-1 and avoids the electric screwdriver 708-1 from being started due to misoperation when it is not in contact with the screw, which may damage the workpiece or the screw; and the elastic component 708-7 can play a buffering role to avoid hard collision between the electric screwdriver 708-1 and the screw, which may damage the screw; the electric screwdriver locking device 708 can automatically detect the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver 708-1.

[0048] In some embodiments, the number of electric screwdrivers 708-1 is multiple, each electric screwdriver 708-1 is installed on the same electric screwdriver mounting plate 708-3, and the electric screwdriver mounting plate 708-3 can be provided with multiple mounting holes; the position detection component 708-11 is a distance sensing sensor, the position detection component 708-11 is installed on the electric screwdriver mounting plate 708-3, and the number of distance sensing sensors is the same as that of the electric screwdrivers 708-1, and each distance sensing sensor corresponds to one electric screwdriver 708-1; specifically, the bottom of the electric screwdriver mounting plate 708-3 can be provided with a boss column, and each position detection component 708-11 is arranged towards the corresponding electric screwdriver 708-1; specifically, the position detection component 708-11 can judge the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver 708-1 by detecting the relative position between the electric screwdriver mounting plate 708-3 and the limiting protrusion of the electric screwdriver locking guide sleeve 708-8, which is convenient for operation.

[0049] In some embodiments, the electric screwdriver locking device 708 further comprises a bushing 708-5, the bushing 708-5 is fixedly arranged in the mounting hole, and the electric screwdriver locking guide sleeve 708-8 is in sliding fit with the bushing 708-5; the bushing 708-5 can be a brass bushing 708-5, the electric screwdriver locking guide sleeve 708-8 has a small friction coefficient by sliding fit with the bushing 708-5, which is convenient for sliding and has a long service life.

[0050] In some embodiments, the electric screwdriver locking device 708 further comprises an electric screwdriver control handle 708-2, the electric screwdriver control handle 708-2 is installed on the electric screwdriver mounting plate 708-3, the number of electric screwdriver control handles 708-2 is at least two, and each electric screwdriver control handle 708-2 is located on the left side or the right side of the electric screwdriver mounting plate 708-3; as shown in Figure 9 The electric screwdriver control handle 708-2 is provided with a button, the button is connected with the controller 9, the controller 9 is used to send a start signal to the electric screwdriver 708-1 when the buttons on each electric screwdriver control handle 708-2 are pressed, and the electric screwdriver 708-1 controls the rotation of the screwdriver bit 708-9 after receiving the operation signal and the start signal. The above-mentioned setting, through the setting of the electric screwdriver control handle 708-2, not only facilitates the adjustment of the position of the electric screwdriver mounting plate 708-3, but also facilitates the pressing operation of the operator 2 by setting the button on the electric screwdriver control handle 708-2, which is convenient to use; and by setting at least two electric screwdriver control handles 708-2, the start signal will be sent to the electric screwdriver 708-1 only when the buttons on each electric screwdriver control handle 708-2 are pressed, which avoids the misoperation of the operator 2 and improves the reliability. Specifically, the button comprises a reset button 708-2-2 and a start button 708-2-1, the start button 708-2-1 is used to send a start signal to the electric screwdriver 708-1 to complete the locking process of the screw, and the reset button 708-2-2 is used to rotate the screw in the opposite direction to complete the disassembly process of the screw.

[0051] In some embodiments, please refer to Figure 4 The screw is located on the component to be processed, the beam assembly is located between the electric screwdriver mounting plate 708-3 and the sliding device, the beam assembly is arranged on the sliding device, and the sliding device is arranged on the fixing device, so that the electric screwdriver mounting plate 708-3 can slide in the vertical direction and translate in the horizontal direction relative to the fixing device. The above arrangement, the fixing device is mounted on the fixing support 6 of the screw automatic locking system, is mainly used for supporting, the sliding device can slide in the vertical direction relative to the fixing device, so as to realize the position adjustment of the screw automatic locking equipment 7 in the vertical direction, through the arrangement of the beam assembly, the screw automatic locking equipment 7 is adjusted in the horizontal direction position by the horizontal translation of the beam assembly, so as to realize the adjustment of the screw automatic locking equipment 7 in the target area. Any position adjustment, at the same time, since the screw automatic locking equipment 7 can only slide in the vertical direction and translate in the horizontal direction, the screw automatic locking equipment 7 will not swing, which can ensure that the screw automatic locking equipment 7 can smoothly contact with the screw, ensure that the electric screwdriver 708-1 in the screw automatic locking equipment 7 is always in the vertical state, and ensure the processing efficiency and position accuracy of the screw automatic locking equipment 7.

[0052] In some embodiments, the beam assembly includes an electric screwdriver fixing beam 707 and a sliding sleeve cantilever beam 706, the electric screwdriver fixing beam 707 is hinged in the horizontal direction with the sliding sleeve cantilever beam, the electric screwdriver mounting plate 708-3 is mounted on the electric screwdriver fixing beam 707, and the sliding sleeve cantilever beam 706 is mounted on the sliding device. When the sliding device slides in the vertical direction, the electric screwdriver fixing beam 707 and the sliding sleeve cantilever beam 706 move in the vertical direction, which is convenient for operation.

[0053] In some embodiments, the fixing device includes a device fixing support assembly 701, a balancer guide shaft support assembly 702, and a device top fixing seat 705, the device fixing support assembly 701 and the device top fixing seat 705 are respectively arranged at the top and bottom of the fixing support 6 of the screw automatic locking system, the balancer guide shaft support assembly 702 is located between the device fixing support assembly 701 and the device top fixing seat 705, and the sliding device is slidingly arranged on the balancer guide shaft support assembly 702. Specifically, the device fixing support assembly 701 includes a fixed end plate 701-1, an angle rib support 701-2, and a fixed support bottom plate 701-3. The two angle rib supports 701-2 are locked in the fixed end plate 701-1 and the fixed support bottom plate 701-3 by hexagon socket screws at the same time, which increases the overall structural rigidity of the device fixing support assembly 701; the fixed end plate 701-1 can be an aluminum profile end plate, which is light in weight and high in strength; the fixed end plate 701-1 is directly locked on the end face of the fixing support 6 by using hexagon socket screws and special ball nut standard parts to ensure stability; the balancer guide shaft support assembly 702 includes a balancer flange support 702-1, a balancer guide shaft 702-2, and a guide shaft top support 702-3, the bottom of the balancer guide shaft 702-2 penetrates the center hole of the balancer flange support 702-1, and the balancer flange support 702-1 is locked by a hexagon socket screw to fix the balancer guide shaft 702-2; the top of the balancer guide shaft 702-2 is fixed by using the guide shaft top support 702-3, and a hexagon socket screw penetrates the center hole of the guide shaft top support 702-3 and is screwed into the top threaded hole of the balancer guide shaft 702-2; the entire balancer guide shaft support assembly 702 is fixed on the flange plane of the device fixing support assembly 701 by using a hexagon socket screw.

[0054] Further, the device top fixing seat 705 includes a top support fixing plate 705-1, a top angle rib 705-2, a top fixed end plate 705-3, and a guide sleeve 705-4, the guide sleeve 705-4 can be a cylindrical structure; the top support fixing plate 705-1 is assembled and locked by using hexagon socket screws with the top angle rib 705-2 and the top fixed end plate 705-3 to form an L-shaped fixing support, the upper end face of the guide sleeve 705-4 is designed with two threaded holes, which are locked in the stroke limiting hole 708-8-1 of the top support fixing plate 705-1 by using a hexagon socket screw, and have an adjustable size assembly design; the lower end face of the guide sleeve 705-4 is designed with a countersunk hole, which is positioned and clamped into the cylindrical boss of the guide shaft top support 702-3, the top fixed end plate 705-3 is fixed on the fixing support 6 by using a hexagon socket screw and an aluminum profile special ball nut, and in order to ensure the verticality accuracy requirement of the balancer guide shaft support assembly 702, the position and size of the guide sleeve 705-4 in the fixed stroke limiting hole 708-8-1 of the top support fixing plate 705-1 are adjusted.

[0055] In some embodiments, the sliding device includes a bearing seat sliding sleeve 703 and a balancer tension spring 704, the bearing seat sliding sleeve 703 is sleeved on the balancer guide shaft support assembly 702, the free end of the balancer tension spring 704 is connected with the bearing seat sliding sleeve 703, and the balancer tension spring 704 is adjustably arranged on the balancer guide shaft support assembly 702 to adjust the downward pressing force of the bearing seat sliding sleeve 703. Specifically, the bearing seat sliding sleeve 703 is installed in the balancer guide shaft 702-2 on the balancer guide shaft support assembly 702 through an internal ball bushing 708-5, can slide up and down along the balancer guide shaft 702-2, the upper end face of the bearing seat sliding sleeve 703 is limited by the guide shaft top support 702-3, and the lower end face of the bearing seat sliding sleeve 703 is limited by the balancer flange support 702-1, so that the bearing seat sliding sleeve 703 can only slide within a specific range; the balancer tension spring 704 is fixed in the annular ring of the guide shaft top support 702-3 by a hook, and the other end is fixed on the bearing seat sliding sleeve 703, when the bearing seat sliding sleeve 703 slides downward, the balancer tension spring 704 always provides upward tension, and the size of the expansion force of the balancer tension spring 704 can be flexibly adjusted by manually rotating the knob on one side of the balancer tension spring 704, so as to meet the comfort requirements of the operator 2; the right side end of the sliding sleeve cantilever beam 706 is fixed on the corresponding threaded hole of the bearing seat sliding sleeve 703 by using an internal hexagonal screw, the left side end of the sliding sleeve cantilever beam 706 has a pin shaft, the upper and lower end faces of the pin shaft have threaded holes, and the pin shaft is fixed by limiting and locking the upper and lower end plates; further, the right side end of the electric screwdriver fixed beam 707 is fixed on the sliding sleeve cantilever beam 706 through the bushing 708-5, and the left side end of the electric screwdriver fixed beam 707 is locked and connected with the electric screwdriver locking device 708; of course, the sliding sleeve cantilever beam 706 and the electric screwdriver fixed beam 707 can be customized and designed to have different lengths and sizes according to actual production needs, and can extend different arm spans to adapt to production application scenarios.

[0056] Specifically, in a specific embodiment, the electric screwdriver locking device 708 includes an electric screwdriver 708-1, an electric screwdriver control handle 708-2, an electric screwdriver mounting plate 708-3, a limiting ring 708-4, a bushing 708-5, a limiting connecting piece 708-6, an elastic component 708-7, an electric screwdriver locking guide sleeve 708-8, a screwdriver bit 708-9, a handle fixing seat 708-10, and a position detection component 708-11; the electric screwdriver mounting plate 708-3 is locked on the left side end of the electric screwdriver fixed beam 707 through a screw, and two electric screwdriver control handles 708-2 are locked on the handle fixing seat 708-10 through internal hexagonal screws, as shown in Figure 8 ; and two handle fixing seats 708-10 are locked and fixed on the two side end faces of the electric screwdriver mounting plate 708-3 through internal hexagonal screws, as shown in Figure 7As shown; the bushings 708-5 are tightly fitted into the mounting holes of the electric screwdriver mounting plate 708-3 through an interference fit relationship, and the assembly end faces are flush with each other; each elastic component 708-7 is sleeved on the outer circle of the corresponding electric screwdriver locking guide sleeve 708-8, and is limited by the protruding design of the bottom end face of the electric screwdriver locking guide sleeve 708-8 to prevent the elastic component 708-7 from falling off, for example, there can be four assemblies; and the electric screwdriver locking guide sleeve 708-8 is installed in the bushing 708-5 through a 0.01mm gap fit relationship, and there are a total of four assemblies, and four electric screwdrivers 708-1 are locked in the four electric screwdriver locking guide sleeves 708-8 respectively, and are locked together through threads, and are coated with thread locking glue to prevent the electric screwdriver 708-1 from loosening; the limiting connector 708-6 is installed through the round holes of the electric screwdriver mounting plate 708-3 and the bushing 708-5, and penetrates the stroke limiting hole 708-8-1 of the electric screwdriver locking guide sleeve 708-8, the advancing inner side end face of the limiting connector 708-6, that is, the inner end face of the limiting platform and the outer end face of the electric screwdriver mounting plate 708-3 are attached, and the limiting installation is completed; at this time, the stroke of the entire electric screwdriver 708-1 elastic component 708-7 is determined by the length size of the stroke limiting hole 708-8-1 designed by the electric screwdriver locking guide sleeve 708-8; the entire electric screwdriver locking device 708 has the advantages of convenient disassembly, flexible upgrade iteration, sensor recognition in place, and can be compatible with various screw patterns, and only needs to replace the bit head 708-9 to be compatible with different product screw head patterns; the controller 9 can be an electric screwdriver 708-1 servo system controller 9, which provides a precise control method compatible with various torque, angle and speed monitoring, provides input and output ports for operation process control, and commonly used communication interfaces in industry; at the same time, it has an Ethernet interface for remote monitoring and remote control of the electric screwdriver 708-1; and provides a dedicated host computer software program, which communicates with the MES (Manufacturing Execution System) in real time, records, transmits, alarms, and traces data of the four screws of the electric screwdriver 708-1 locking cold plate 502; the host computer software is displayed on the display screen 8 of the all-in-one machine in real time, and the electric screwdriver 708-1 control interface is displayed in real time, which can modify the electric screwdriver 708-1 operation mode, process parameters, network communication docking, data query and other functions by touching the display screen 8; the entire sliding sleeve cantilever beam 706, electric screwdriver fixing beam 707 and electric screwdriver locking device 708 can translate and rotate in the horizontal direction, that is, in the XY plane; the bearing seat sliding sleeve 703 slides in the balancer guide shaft support assembly 702 to form vertical up and down movement, that is, Z axis vertical direction, and the balancer tension spring 704 forms a balanced force arm structure design. Of course, the number of screws and the number of electric screwdrivers 708-1 can be determined according to needs or actual application scenarios, and are not limited to the mode given in this embodiment.

[0057] The screw automatic locking device 7 provided by the application adopts a limiting connecting piece 708-6 to install a round hole penetrating through the electric screwdriver installation plate 708-3 and the bushing 708-5, complete the limiting installation, and has a positioning and guiding effect; the elastic component 708-7 and the electric screwdriver locking guide sleeve 708-8 are designed to have the effects of buffering, flexible release of vertical pressure, and facilitate the flexible automatic centering of the screw pattern of the electric screwdriver 708-1 component rotating the bit 708-9; the two electric screwdriver control handles 708-2 are pressed downward by two hands, so that the elastic component 708-7 is compressed, and the position detection component 708-11 senses the in-place signal of the lifting of the electric screwdriver locking guide sleeve 708-8 and feeds back to the controller 9, on the one hand, the two electric screwdriver control handles 708-2 can ensure the stability of the operation, on the other hand, the position detection component 708-11 can prevent the operator 2 from accidentally touching the start button 708-2-1 to cause damage to the product caused by the rotation of the electric screwdriver 708-1 component, and the start button 708-2-1 needs to be pressed by two hands, which has a foolproof function; the balanced force arm can save more labor in operation, can offset the reaction force when the electric screwdriver 708-1 component works to rotate and lock the screw in the cold plate 502 and its own weight, and reduce the muscle tendon fatigue injury caused by repeated actions of the operator 2; solve the problem of high error rate of aging test caused by product assembly link, reduce to within 2%.

[0058] In addition to the screw automatic locking device 7 described above, the application also provides a screw automatic locking system comprising the screw automatic locking device 7.

[0059] Please refer to Figure 1 and Figure 2 The screw automatic locking system further comprises a fixed support 6, an automatic lifting backflow return plate machine 1, a speed-up chain assembly line body 3, and a support carrier 4. The automatic lifting backflow return plate machine 1 is used to place or take off the to-be-processed component on or from the support carrier 4. The support carrier 4 is arranged on the speed-up chain assembly line body 3 and is used to carry the to-be-processed component. The speed-up chain assembly line body 3 is further provided with a blocking component and a jacking component. When the support carrier 4 moves to a target area corresponding to the fixed support 6, the blocking component is used to block the support carrier 4, and the jacking component is used to jack up the to-be-processed component. The fixed support 6 is used to realize the installation and fixation of the entire device. When the to-be-processed component moves to a target area corresponding to the position of the fixed support 6, it means that the to-be-processed component enters the processing procedure. At this time, the electric screwdriver 708-1 can move to a position corresponding to the screw position of the to-be-processed component.

[0060] In a specific embodiment, the screw automatic locking system comprises an automatic lifting backflow return plate machine 1, an operator 2, a speed chain assembly line body 3, a support carrier 4, a fixed support 6, an electric screwdriver locking device 708, a display screen 8 and a controller 9. The fixed support 6 can be an aluminum profile support. The speed chain assembly line body 3 is an upper and lower circulating backflow automatic conveying line. The two ends of the speed chain assembly line body 3 are the automatic lifting backflow return plate machine 1, which are locked together by special aluminum profile screws. The support carrier 4 is placed on the roller chain on the speed chain assembly line body 3 for conveying and operating. The workpiece is placed at the center above the support carrier 4. The fixed support 6 is connected and fixed to the side end face of the speed chain assembly line body 3 through a ball nut and a screw, which strengthens the rigidity and stability of the overall structure. The electric screwdriver locking device 708 is also connected and fixed to the side end face of the fixed support 6 through a ball nut and a screw.

[0061] Specifically, the screw automatic locking system adopts a design of a speed chain assembly line body 3 circulating operation mode. The left automatic lifting backflow return plate machine 1 provides a support carrier 4 for feeding and a liquid-cooled electronic device 5. The liquid-cooled electronic device 5 is placed on the support carrier 4 for limiting and fixing. When the liquid-cooled electronic device 5 is conveyed to the position of the operator 2 by the speed chain assembly line body 3, i.e. the target area corresponding to the fixed support 6, the blocking cylinder and the lifting cylinder on the speed chain assembly line body 3 act once to lift the support carrier 4 and the liquid-cooled electronic device 5. Then, after the operator 2 hears the beeper sound prompt and sees the information picture on the display screen 8 of the all-in-one machine, the operator 2 uses the electric screwdriver locking device 708 with both hands to hold the electric screwdriver control handles 708-2 in the electric screwdriver locking device 708. The electric screwdriver control handles 708-2 can directly control the rotation of the electric screwdriver 708-1. The chuck 708-9 is installed and locked in the bottom sleeve of the electric screwdriver 708-1, so as to lock and unlock the screws.

[0062] Further, the operator 2 holds two electric screwdriver control handles 708-2 with both hands, aligns the four chucks 708-9 with the four screws corresponding to the GPU module 503 in the cold plate 502 through the naked eye, and then presses down the two electric screwdriver control handles 708-2 with both hands to compress the elastic component 708-7. When the position detection component 708-11 senses the in-place signal of the lifting of the electric screwdriver locking guide sleeve 708-8 relative to the electric screwdriver 708-1, it means that the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver 708-1 is the target position, and feedback is given to the controller 9. If the position detection component 708-11 cannot sense the in-place signal of the lifting of the electric screwdriver locking guide sleeve 708-8 relative to the electric screwdriver 708-1 within the target time, check whether the position detection component 708-11 is damaged. If so, replace or reset it.

[0063] When the position detection component 708-11 senses that the electric screwdriver lock sleeve 708-8 is lifted relative to the electric screwdriver 708-1 to the in-place signal, the operator 2 presses the start button 708-2-1 on the electric screwdriver control handle 708-2 with both hands, and the electric screwdriver 708-1 will follow the set program to first reverse the four screws corresponding to the GPU module 503 in the cold plate 502 for two turns, and then rotate forward. The purpose of reversing is to be able to clamp the four screw heads 708-9 and the corresponding four screw patterns in the GPU module 503. Alternatively, the operator 2 can first press the two reset buttons 708-2-2 below the electric screwdriver control handle 708-2 for the first time to reverse, and then the operator 2 presses the two start buttons 708-2-1 above the electric screwdriver control handle 708-2 with both hands to make the screw head 708-9 rotate forward, and simultaneously lock the four screws corresponding to the GPU module 503 in the cold plate 502. When the actual torque value reaches the product specified 0.8 N·m torque value, the four electric screwdrivers 708-1 stop rotating and the green light prompts the lock to be completed. The green light can be an LED light. At this time, the controller 9 records the actual torque value in the upper computer software, and uploads it to the MES system in real time for data storage and later data query and tracing, and is displayed on the display screen 8 of the all-in-one machine in real time.

[0064] Repeat the operation of locking the next group of four screws corresponding to the GPU module 503 in the cold plate 502. There are a total of eight groups of four screws corresponding to the GPU module 503 in the cold plate 502. When the eight screws in the cold plate 502 are completed, the upper computer software automatically pops up a window to prompt the completion of the locking task, and all the actual torque values are uploaded to the MES system in real time for data storage and later data query and tracing. Then the blocking cylinder and the lifting cylinder of the speed chain flow line body 3 act twice to transfer the support carrier 4 and the liquid-cooled electronic equipment 5 to the right automatic lifting backflow return plate machine 1, and the liquid-cooled electronic equipment 5 that has completed the assembly task is lifted and transferred to the next testing link. At this time, the support carrier 4 is lowered to the backflow layer of the speed chain flow line body 3 and transferred to the left automatic lifting backflow return plate machine 1. The task is completed, and the next product is cycled online for assembly. A precise, efficient, stable and reliable, and high flexibility closed-loop control logic and upper computer MES software operation control system is formed.

[0065] In addition to the above-mentioned screw automatic locking device 7, the present application also provides a screw automatic locking method. Please refer to Figure 12 The screw automatic locking method comprises the following steps.

[0066] Step S1: When the workpiece moves to the target area corresponding to the fixed support 6, the movement of the workpiece is controlled to stop.

[0067] Step S2: control the electric screwdriver 708-1 to move to the position corresponding to the screw, and continue to press the electric screwdriver mounting plate 708-3.

[0068] Step S3: when the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver locking guide sleeve 708-8 is the target position, send a running signal to the electric screwdriver 708-1 to make the electric screwdriver 708-1 enter the operable mode.

[0069] Step S4: send a start signal to the electric screwdriver 708-1, and the bit 708-9 of the electric screwdriver 708-1 rotates. That is, after receiving the running signal and the start signal, the bit 708-9 of the electric screwdriver 708-1 rotates.

[0070] Step S5: when the torque value of the bit 708-9 is greater than or equal to the target torque value, the electric screwdriver 708-1 is controlled to stop, and the number of successful locking of the electric screwdriver 708-1 is recorded.

[0071] Step S6: when the number of successful locking of the electric screwdriver 708-1 is less than the target number, and the electric screwdriver 708-1 is moved out of the target area, an alarm signal is sent.

[0072] The screw automatic locking method, through the automatic control of the workpiece to be processed, when the workpiece to be processed moves to the target area corresponding to the fixed support 6, it is automatically stopped without manual intervention, then the electric screwdriver 708-1 is manually controlled to move to the position corresponding to the screw, and the electric screwdriver mounting plate 708-3 is continuously pressed down, when the relative position between the electric screwdriver mounting plate 708-3 and the electric screwdriver locking guide sleeve 708-8 is the target position, at this time the electric screwdriver 708-1 receives the start signal and enters the standby running state, then the electric screwdriver 708-1 judges whether the assembly of the corresponding screw is completed by automatically detecting the torque value of the bit 708-9, when the assembly of a screw is completed, the number of successful locking of the electric screwdriver 708-1 is recorded, when the number of successful locking of the electric screwdriver 708-1 is less than the target number, and the electric screwdriver 708-1 is moved out of the target area, an alarm signal is sent, that is, when the electric screwdriver 708-1 has not completed the assembly of all screws, and the electric screwdriver 708-1 is moved out of the target area, an alarm signal is sent to provide the operator 2 to lock the remaining screws, to avoid the problem that due to human calculation error, part of the screws on the workpiece to be processed have not been locked before being offline, only when the number of successful locking of the electric screwdriver 708-1 is greater than or equal to the target number, the electric screwdriver 708-1 is moved out of the target area, and the alarm signal is not sent, to ensure the processing reliability of the workpiece to be processed and improve the yield.

[0073] In some embodiments, when the torque value of a single electric batch 708-1 is less than the target torque value and lasts for a preset time, it is determined that the electric batch 708-1 is the target electric batch, indicating that the screw corresponding to the electric batch cannot be normally locked, after replacing the screw or checking the abnormality, when the relative position between the electric batch mounting plate 708-3 and the electric batch locking guide sleeve 708-8 is the target position again, the controller 9 sends a running signal to the target electric batch, and other electric batches 708-1 do not need to send a running signal, when the operator 2 sends a start signal to the electric batch 708-1, only the target electric batch receives the running signal and the start signal at the same time, so only the head 708-9 of the target electric batch starts to rotate, at this time only the screw that fails or has an abnormality is locked, and other electric batches 708-1 do not need to start, saving cost; of course, when it is determined again whether the relative position between the electric batch mounting plate 708-3 and the electric batch locking guide sleeve 708-8 is located at the target position, it is only necessary to determine whether the relative position between the electric batch mounting plate 708-3 and the electric batch locking guide sleeve 708-8 of the target electric batch is located at the target position, and other electric batches do not need to be detected, facilitating operation.

[0074] Specifically, the host computer is a computer directly issuing control commands in the industrial control system, usually a PC or industrial computer, responsible for monitoring, control, data acquisition and analysis, and working with software systems such as PLC (Programmable Logic Controller), single-chip microcomputer, etc. in the process. The worker 2 scans the material number PN (Product Number) and the unique identification code QID (Quality Identification) of the GPU module 503 to be assembled by the code scanning gun in the manufacturing execution system. After the MES system verifies the scanning integrity of the same kind of material, it calls the WebAPI (Web Application Programming Interface) interface provided by the application to send a parameter set containing the module material number, module unique identification code, module screw total number, module quantity, locking torque standard value and machine serial number. After the WebAPI interface receives the data, it dynamically allocates the number of screws that need to be locked for each electric screwdriver 708-1 according to the module quantity. The host computer software establishes a communication connection with the electric screwdriver 708-1 controller 9 through the ModBus TCP (Modbus Transmission Control Protocol) protocol, and downloads the allocated screw quantity and locking torque parameters to the corresponding electric screwdriver 708-1 controller 9, and releases the locking state of the electric screwdriver 708-1 to enter the operable mode. The host computer software monitors the register state of the electric screwdriver 708-1 controller 9 in real time: when the electric screwdriver 708-1 completes the locking of a single screw, the completion state register of its controller 9 is set, and the host computer software judges whether the locking action is completed by reading the register. Further, it detects whether the locking is successful, such as insufficient or excessive torque, through the abnormal state register. If the locking is normal, the host computer software reads the locking torque register to record the actual torque value, and returns the locking quantity and torque data of the current screw to the MES system in real time through the MES interface. This process is executed in a loop until the total number of screws reaches the set value, and the host computer software sends a locking instruction to the electric screwdriver 708-1 controller 9, so that the electric screwdriver 708-1 enters the inoperable state to prevent accidental triggering. The MES system finally verifies the uploaded locking completed screw quantity: if the actual locking quantity is inconsistent with the preset value, an alarm prompt "the previous process is not completed" is generated when the process station request is received, and the subsequent operation process is blocked; only when the two are consistent, the MES system determines that the process is qualified and allows entering the next assembly link.

[0075] In a specific embodiment, as Figure 13As shown, there are four electric screwdrivers 708-1, for example, electric screwdriver 708-11, electric screwdriver 708-12, electric screwdriver 708-13 and electric screwdriver 708-14, which are synchronously controlled by the electric screwdriver control handle 708-2, each electric screwdriver 708-1 corresponds to an electric screwdriver 708-1 controller 9, and then the 220V AC power supply is connected to the electric screwdriver 708-1 controller 9 through the electric screwdriver 708-1 power adapter AC, each electric screwdriver 708-1 control can be connected through five network communication network switches, and the 220V AC power supply is connected to each network communication network switch through the switch power adapter DC, and the network communication network switch is in communication connection with the upper computer MES system to realize the functions of data transmission, storage traceability, network communication, remote control and program update iteration, and the upper computer MES system is connected with the display screen 8, and the real-time data is displayed on the display screen 8 of the all-in-one machine.

[0076] In a specific embodiment, after the to-be-processed component moves to the target area, the code scanning gun scans the material number and unique identification code of the to-be-processed component, the MES system checks the material integrity, if the check fails, an alarm is given and the process is terminated, if the check is passed, the parameters are transmitted to the upper computer through the WebAPI interface, the upper computer calculates the screw distribution number of the electric screwdriver 708-1, the ModBus TCP issues the torque parameter, the electric screwdriver 708-1 is unlocked, the register state of the electric screwdriver 708-1 is monitored, and it is judged whether the register of the electric screwdriver 708-1 is in the completed state, when the register of the electric screwdriver 708-1 is in the completed state, the abnormal state is detected, if the abnormal state occurs, the audible and light alarm is triggered, if the state is normal, the torque value is recorded and returned to the MES system, it is judged whether the cumulative number of locked screws has reached the set total number, if the cumulative number of locked screws has reached the set total number, the electric screwdriver 708-1 is locked and the MES system is notified, the MES system checks the consistency of the total number, if the MES system checks that the total number is consistent, the next process is released, if the MES system checks that the total number is inconsistent, a prompt signal is sent, and if the cumulative number of locked screws has not reached the set total number, the register state of the electric screwdriver 708-1 is returned to continue monitoring.

[0077] The screw automatic locking device 7, the screw automatic locking system and the method provided by the application have the following beneficial effects.

[0078] 1. The GPU module 503 cold plate 502 batch synchronization lock four screws of the liquid-cooled electronic device 5 can be realized, which fills the gap in the current electronic device field, supports multiple task combination modes, can be used for various assembly needs, has high flexibility, improves production efficiency, reduces labor cost, improves product yield, and reduces the risk of damaged parts.

[0079] 2. The operation process is safe, stable, high degree of human-computer assisted semi-automation, high efficiency, high cleanliness, low noise and other advantages.

[0080] 3. The controller 9 is built-in servo driver, which can provide torque, rotation monitoring and precision control such as deceleration tightening, and has advanced data storage and communication interface for control interaction.

[0081] 4. The controller 9 has multiple safety operations such as physical buttons, indicator lights and buzzers, and has foolproof and monitoring functions, further improving the reliability of the controller 9.

[0082] 5. The use of balanced force arm can improve the assembly quality and torque accuracy of the product, avoid the screwdriver from slipping in the hands of the operator 2, maintain the good perpendicularity of the screwdriver assembly and locking function requirements, and improve the operation accuracy.

[0083] 6. The use of balanced force arm can save more labor in operation, can offset the reaction force when the electric screwdriver 708-1 works to rotate and lock the screw in the cold plate 502 and its own weight, and reduce the muscle tendon fatigue injury caused by repeated actions of the operator 2.

[0084] The screw automatic locking equipment, screw automatic locking system and method provided by the present application are described in detail above. In this paper, specific examples are applied to explain the principles and implementation methods of the present application. The above examples are only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A screw automatic locking device characterized by, The electric screwdriver locking device (708) comprises: an electric screwdriver (708-1) for fastening a screw on a component to be processed; an electric screwdriver mounting plate (708-3) for driving the electric screwdriver (708-1) to move towards or away from the screw; an electric screwdriver locking guide sleeve (708-8) fixedly connected with the electric screwdriver (708-1), movably arranged on the electric screwdriver mounting plate (708-3), and having an axial direction perpendicular to the surface of the electric screwdriver mounting plate (708-3), and the axial direction of the electric screwdriver locking guide sleeve (708-8) is provided with a stroke limiting hole (708-8-1); a limiting connecting piece (708-6) arranged on the electric screwdriver mounting plate (708-3), and one end of the limiting connecting piece (708-6) extends into the stroke limiting hole (708-8-1), and the limiting connecting piece (708-6) can slide relative to the stroke limiting hole (708-8-1) to limit the relative movement stroke of the electric screwdriver locking guide sleeve (708-8) and the electric screwdriver mounting plate (708-3); a resilient component (708-7) abutting one end of the electric screwdriver locking guide sleeve (708-8) and the other end of the electric screwdriver mounting plate (708-3), when the electric screwdriver mounting plate (708-3) drives the electric screwdriver (708-1) to move to abut the electric screwdriver (708-1) and the screw, the electric screwdriver mounting plate (708-3) can continue to move towards the screw to compress the resilient component (708-7), and the limiting connecting piece (708-6) is clamped with the bottom of the stroke limiting hole (708-8-1).

2. The screw bonder of claim 1, wherein The electric screwdriver locking device (708) further comprises a limiting ring (708-4) arranged on the upper part of the electric screwdriver locking guide sleeve (708-8), the resilient component (708-7) is arranged on the lower part of the electric screwdriver locking guide sleeve (708-8), the bottom of the electric screwdriver locking guide sleeve (708-8) is provided with a limiting protrusion for limiting the resilient component (708-7), and the electric screwdriver mounting plate (708-3) is located between the limiting ring (708-4) and the resilient component (708-7).

3. The screw bonder of claim 1, wherein The electric screwdriver locking device (708) further comprises a beam assembly, a fixing device and a sliding device, the screw is arranged on the component to be processed, the beam assembly is arranged between the electric screwdriver mounting plate (708-3) and the sliding device, the beam assembly is arranged on the sliding device, and the sliding device is arranged on the fixing device, so that the electric screwdriver mounting plate (708-3) can slide in the vertical direction and translate in the horizontal direction relative to the fixing device.

4. The screw bonder of claim 3, wherein The fixing device comprises a device fixing support assembly (701), a balancer guide shaft support assembly (702), and a device top fixing seat (705), the device fixing support assembly (701) and the device top fixing seat (705) are respectively arranged at the top and bottom of the fixing support (6) of the screw automatic locking system, the balancer guide shaft support assembly (702) is located between the device fixing support assembly (701) and the device top fixing seat (705), and the sliding device is slidingly arranged on the balancer guide shaft support assembly (702).

5. The screw bonder of claim 4, wherein The sliding device comprises a bearing seat sliding sleeve (703) and a balancer tension spring (704), the bearing seat sliding sleeve (703) is slidingly sleeved on the balancer guide shaft support assembly (702), the free end of the balancer tension spring (704) is connected with the bearing seat sliding sleeve (703), and the balancer tension spring (704) is adjustably arranged on the balancer guide shaft support assembly (702) to adjust the downward pressing force of the bearing seat sliding sleeve (703).

6. The automatic screw locking apparatus according to any one of claims 1 to 5, characterized by Further comprising: A position detection component (708-11) arranged on the electric screwdriver mounting plate (708-3) and / or the electric screwdriver locking guide sleeve (708-8), the position detection component (708-11) is used to obtain the relative position between the electric screwdriver mounting plate (708-3) and the electric screwdriver locking guide sleeve (708-8); A controller (9) connected with the position detection component (708-11) and the electric screwdriver (708-1), the controller (9) is used to send a running signal to the electric screwdriver (708-1) when the relative position between the electric screwdriver mounting plate (708-3) and the electric screwdriver locking guide sleeve (708-8) is a target position, so that the electric screwdriver (708-1) enters an operable mode.

7. The screw bonder of claim 6 wherein, The number of the electric screwdrivers (708-1) is multiple, each electric screwdriver (708-1) is installed on the same electric screwdriver mounting plate (708-3); the position detection component (708-11) is a distance sensing sensor, the position detection component (708-11) is installed on the electric screwdriver mounting plate (708-3), and the number of the distance sensing sensor is the same as that of the electric screwdrivers (708-1), and they are one-to-one corresponding.

8. The screw bonder of claim 6 wherein, The electric screwdriver locking device (708) further comprises electric screwdriver control handles (708-2) mounted on the electric screwdriver mounting plate (708-3), the number of the electric screwdriver control handles (708-2) is at least two, and they are respectively located on the left and right sides of the electric screwdriver mounting plate (708-3); buttons are arranged on the electric screwdriver control handles (708-2), the buttons are connected with the controller (9), the controller (9) is used for sending a starting signal to the electric screwdriver (708-1) when the buttons on each electric screwdriver control handle (708-2) are pressed; the electric screwdriver (708-1) controls the rotation of the bit (708-9) after receiving the running signal and the starting signal.

9. A screw automatic locking system, characterized by, The screw automatic locking equipment (7) comprises a fixed support (6), an automatic lifting backflow returning plate machine (1), a speed-up chain flow line body (3), and a supporting carrier (4). The fixed support (6) is arranged beside the speed-up chain flow line body (3), the screw automatic locking equipment (7) is arranged on the fixed support (6), the automatic lifting backflow returning plate machine (1) is used for placing or taking off the workpiece from the supporting carrier (4), the supporting carrier (4) is arranged on the speed-up chain flow line body (3), and the supporting carrier (4) is used for carrying the workpiece. The speed-up chain flow line body (3) is further provided with a blocking component and a jacking component. When the supporting carrier (4) moves to a target area corresponding to the fixed support (6), the blocking component is used for blocking the supporting carrier (4), and the jacking component is used for jacking up the workpiece.

10. A screw automatic locking method using the screw automatic locking apparatus (7) according to any one of claims 1 to 8, characterized by, The method comprises the following steps: When the workpiece moves to a target area, the electric screwdriver (708-1) is controlled to move to a position corresponding to a screw of the workpiece, and the electric screwdriver mounting plate (708-3) is continuously pressed down; When the relative position between the electric screwdriver mounting plate (708-3) and the electric screwdriver locking guide sleeve (708-8) is a target position, a running signal is sent to the electric screwdriver (708-1) to make the electric screwdriver (708-1) enter an operable mode; A starting signal is sent to the electric screwdriver (708-1), and the bit (708-9) of the electric screwdriver (708-1) rotates; When the torque value of the bit (708-9) is greater than or equal to a target torque value, the electric screwdriver (708-1) is controlled to stop working, and the number of successful locking of the electric screwdriver (708-1) is recorded; When the number of successful locking of the electric screwdriver (708-1) is less than a target number, and the electric screwdriver (708-1) is moved out of the target area, an alarm signal is sent.

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