A computer mainframe box assembly system

Abstract

The application provides a computer host box assembling system, comprising: a workbench for carrying a workpiece to be assembled, a carrier assembly arranged on the workbench and vertically lifting, a plurality of carrier assemblies arranged on the carrier assembly and vertically holding screws, and an automatic screw locking machine arranged outside the carrier assembly; the carrier assemblies are vertically arranged corresponding to threaded holes of the workpiece to be assembled, the carrier assembly drives the carrier assemblies to approach or move away from the workpiece to be assembled along the vertical direction, and the screws are installed in the threaded holes by the automatic screw locking machine when the carrier assemblies approach the workpiece to be assembled. The application controls the screw tightening force and speed accurately, reduces the errors caused by human factors, and improves the assembling efficiency.

Description

Technical Field

[0001] This invention relates to the field of computer assembly technology, and more particularly to a computer chassis assembly system. Background Technology

[0002] A computer is an electronic device used to process data and execute various programs. It consists of multiple hardware components, including a central processing unit (CPU), memory, hard drive, motherboard, graphics card, etc. The computer case, as part of the computer accessories, primarily supports and protects these hardware components.

[0003] Existing computer chassis mainly include components such as circumferential frame, front panel and back panel. The traditional assembly method is to manually align the back panel with the threaded mounting holes on the circumferential frame, then insert screws into the threaded mounting holes, and finally use a manual automatic screw fastening machine to tighten the screws to fix the back panel to the circumferential frame.

[0004] However, the existing assembly method requires manual support of the back plate and circumferential frame plate during the screw tightening process, tightening each screw individually before moving on to the next screw. Due to the limited speed of manual operation, continuous work efficiency is affected, and errors are easily caused by fatigue or distraction, affecting the assembly quality.

[0005] Therefore, there is an urgent need to improve the computer chassis assembly system by enhancing assembly efficiency and precisely controlling the screw tightening force and speed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to disclose a computer chassis assembly system to solve many defects in the existing computer chassis assembly methods, especially to achieve precise control of screw tightening force and speed, reduce errors caused by human factors, and improve assembly efficiency.

[0007] To achieve the above objectives, the present invention provides a computer chassis assembly system, comprising: a worktable for carrying workpieces to be assembled; a platform assembly disposed on the worktable and raised and lowered longitudinally; a plurality of load assemblies disposed on the platform assembly and holding screws in a longitudinal posture; and an automatic screw fastening machine disposed outside the platform assembly.

[0008] The loading component is longitudinally aligned with the threaded hole of the workpiece to be assembled. The platform component drives the loading component to move closer to or away from the workpiece to be assembled in the longitudinal direction. When the loading component moves closer to the workpiece to be assembled, the screw is installed in the threaded hole by the automatic screw fastening machine.

[0009] As a further improvement of the present invention, the loading component includes: a card holder, a first tray and a second tray arranged longitudinally and rotatably connected to the inner wall of the card holder, wherein the first tray and the second tray are symmetrically arranged along the longitudinal axis of the card holder;

[0010] The end of the first support plate away from the inner wall of the card holder is configured with an arc-shaped recess for supporting the nut contained in the screw component, and the end of the second support plate away from the inner wall of the card holder is configured with an arc-shaped protrusion for abutting the screw contained in the screw component, so that the central axis of the screw component is kept longitudinal.

[0011] As a further improvement of the present invention, the arc-shaped concave portion abuts against the lower end face of the nut, and the arc-shaped convex portion abuts against the thread sidewall of the screw.

[0012] During the process of the automatic screw fastening machine installing the screw into the threaded hole, the nut passes through the first support plate and the second support plate in sequence along the longitudinal direction.

[0013] As a further improvement of the present invention, the first tray is configured with a rotating shaft to form a rotatable connection with the card seat, and a torsion spring is sleeved on the outside of the rotating shaft. The end of the second tray away from the card seat is inclined downward toward the longitudinal axis of the card seat. A first spring is configured on the side of the second tray opposite to the first tray, and the end of the first spring away from the second tray is fixedly connected to the inner wall of the card seat.

[0014] As a further improvement of the present invention, a protrusion is constructed on the side of the first tray facing the second tray to support the second tray and cause it to rotate.

[0015] As a further improvement of the present invention, the automatic screw fastening machine includes: a screwdriver head, and an abutting assembly formed on the outside of the screwdriver head and disposed in the housing of the automatic screw fastening machine for abutting the first tray;

[0016] When the screwdriver head engages the nut and drives the nut to move longitudinally downward to the first position, the abutting component abuts against the first support plate to cancel the arc-shaped concave portion supporting the nut, and the arc-shaped convex portion abuts against the screw rod;

[0017] When the screwdriver head drives the nut to move longitudinally downward to the second position, the screw engages the threaded hole and the arcuate protrusion abuts against the screw rod.

[0018] As a further improvement of the present invention, the abutting assembly includes: a support frame, a guide rod arranged longitudinally on the support frame, a guide cylinder sleeved on the outside of the guide rod and moving longitudinally relative to the guide rod, a second spring sleeved on the outside of the guide rod and clamped between the guide cylinder and the support frame, and an abutting foot disposed on the end of the guide cylinder away from the support frame.

[0019] As a further improvement of the present invention, the platform assembly includes: a lifting assembly disposed on the worktable, and a platform body controlled by the lifting assembly to move up and down longitudinally.

[0020] The platform body has a through slot for the loading component to be embedded, and the lifting component drives the loading component to move closer to or away from the workpiece to be assembled along the longitudinal direction.

[0021] As a further improvement of the present invention, the workpiece to be assembled includes: a circumferential frame plate, a back plate disposed on the side of the circumferential frame plate away from the worktable, the back plate and the circumferential frame plate being configured with the threaded hole for engagement of the screw.

[0022] The platform body is equipped with a plurality of correction plates that correspond one-to-one with the outer peripheral side of the back plate on the side facing the workpiece to be assembled. The correction plates are configured with a rotating shaft that is rotatably connected to the platform body. A torsion spring is sleeved on the outside of the rotating shaft. The torsion spring keeps the correction plates in an inclined state towards the outer peripheral direction of the back plate. When the loading assembly approaches the workpiece to be assembled, the correction plates abut against the outer peripheral side of the back plate.

[0023] As a further improvement of the present invention, the computer chassis assembly system further includes: clamping components symmetrically arranged on both sides of the workpiece to be assembled, the clamping components being used to clamp and position the workpiece to be assembled.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The computer chassis assembly system drives the carrier component to descend to the correct docking position through the platform component, so that the screw is accurately aligned with the threaded hole, as shown in the figure. Then, the external robotic arm controls the handle of the automatic screw fastening machine to engage the screw head with the screw. After that, the automatic screw fastening machine drives the screw head to rotate and push the screw downward in the longitudinal direction, so that the screw is accurately embedded in the corresponding threaded hole. The tightening force and speed of the screw are precisely controlled to achieve a stable connection of the workpiece to be assembled. Compared with the existing manual assembly method, the computer chassis assembly system adopts automated execution, reduces errors caused by human factors, and thus improves the accuracy and efficiency of the assembly operation. Attached Figure Description

[0025] Figure 1 This is an overall schematic diagram of the computer chassis assembly system disclosed in this invention;

[0026] Figure 2 Front view schematic diagram of the connection between the workbench and the stage assembly;

[0027] Figure 3 Is Figure 2 Enlarged view shown at location A of the middle frame;

[0028] Figure 4 Schematic diagram of the screwdriver bit engaging with the screw part, where the screw part is centered with the threaded hole;

[0029] Figure 5 Schematic diagram of the abutting foot abutting against the first support plate, where the first support plate releases the support for the nut;

[0030] 0 Figure 6 Schematic diagram of the screw part engaging with the threaded hole, where the arc-shaped convex part releases the abutment against the screw rod;

[0031] Figure 7 Top view schematic diagram of the first support plate and the arc-shaped recess;

[0032] Figure 8 Top view schematic diagram of the arc-shaped recess abutting against the screw part;

[0033] Figure 9 Overall schematic diagram of the automatic screw locking machine. Detailed implementation manners

[0034] The present invention will be described in detail below in conjunction with the various implementation manners shown in the accompanying drawings. However, it should be noted that these implementation manners are not limitations on the present invention, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these implementation manners shall fall within the protection scope of the present invention.

[0035] In particular, it should be noted that in the following embodiments, the term "longitudinal direction" refers to Figure 1 The direction shown by the Z-axis in

[0036] Please refer to Figures 1 to 9 A specific implementation manner of a computer main chassis assembly system disclosed.

[0037] Refer to Figures 1 to 6As shown, in this embodiment, the computer main chassis assembly system 100 includes: a workbench 1 for carrying the workpiece 56 to be assembled, a stage assembly 2 configured on the workbench 1 and lifting and lowering longitudinally, a plurality of load components 3 configured on the stage assembly 2 and holding screw parts 34 in a longitudinal posture, and an automatic screw locking machine 4 arranged outside the stage assembly 2; the load components 3 and the threaded holes 561 opened on the workpiece 56 to be assembled are arranged corresponding to each other longitudinally, the stage assembly 2 drives the load components 3 to approach or move away from the workpiece 56 to be assembled longitudinally, and when the load components 3 approach the workpiece 56 to be assembled, the automatic screw locking machine 4 installs the screw parts 34 into the threaded holes 561.

[0038] The workbench 1 carries the workpiece 56 to be assembled (i.e., the computer main chassis), and the workpiece 56 to be assembled is provided with threaded holes 561 as assembly connection points. The load components 3 hold the screw parts 34 in a longitudinal posture and maintain a preset longitudinal alignment relationship between the screw parts 34 and the threaded holes 561, ensuring that when the stage assembly 2 drives the load components 3 to approach the workpiece 56 to be assembled longitudinally, the screw parts 34 can accurately align with the threaded holes 561. The automatic screw locking machine 4 outside the stage assembly 2 is equipped with a screwdriver head 43, which is responsible for performing the automatic screwing operation of the screw parts 34, precisely controlling the tightening force and speed of the screw parts 34, and the automatic screw locking machine 4 is controlled by an external robotic arm (not shown).

[0039] The computer main chassis assembly system 100 drives the load components 3 to descend to the correct docking position through the stage assembly 2, so that the screw parts 34 accurately align with the threaded holes 561, as shown in Figure 4 Then, the grip 42 of the automatic screw locking machine 4 is controlled by an external robotic arm (not shown) to engage the screwdriver head 43 with the screw part 34, and then the automatic screw locking machine 4 drives the screwdriver head 43 to rotate and push the screw part 34 downward longitudinally, so that the screw part 34 is accurately embedded into the corresponding threaded hole 561 to achieve a firm connection of the workpiece 56 to be assembled. Compared with the existing manual assembly method, the computer main chassis assembly system 100 is automated, reducing errors caused by human factors, thereby improving the accuracy and efficiency of the assembly operation.

[0040] As shown in Figure 3 and Figure 7 and Figure 8As shown, the load-carrying component 3 includes: a card seat 31, a first support plate 32 and a second support plate 35 arranged longitudinally and rotatably connected to the inner wall of the card seat 31. Both the first support plate 32 and the second support plate 35 are symmetrically arranged along the longitudinal axis P of the card seat 31. An arc-shaped recess 321 for supporting the nut 341 contained in the screw member 34 is formed at one end of the first support plate 32 away from the inner wall of the card seat 31, and an arc-shaped protrusion 351 for abutting against the screw rod 342 contained in the screw member 34 is formed at one end of the second support plate 35 away from the inner wall of the card seat 31, so that the central axis P of the screw member 34 is kept longitudinal. The screw member 34 and the card seat 31 are coaxially arranged along the axis P. During the lifting and lowering of the stage component 2, the nut 341 is supported by the arc-shaped recess 321 to support the screw member 34, and the risk of displacement or detachment of the screw member 34 is reduced. Then, the screw rod 342 is closely abutted and supported by the arc-shaped protrusion 351, so that the first support plate 32 and the second support plate 35 cooperate to ensure that the central axis of the screw member 34 is kept longitudinal and improve the stability of the longitudinal posture of the screw member 34. Thus, during the assembly process, high-precision guiding control and position fixing of the screw member 34 can be achieved, and the overall efficiency and stability of the assembly operation of the workpiece 56 to be assembled are improved.

[0041] Refer Figure 3 to and Figure 6 As shown, specifically, the arc-shaped recess 321 abuts against the lower end surface of the nut 341, and the arc-shaped protrusion 351 abuts against the side wall 343 of the thread tooth of the screw rod 342. During the process of the automatic screw locking machine 4 installing the screw member 34 into the threaded hole 561, the nut 341 sequentially passes through the first support plate 32 and the second support plate 35 longitudinally. The circumferential side surface of the screw rod 342 has a side wall 343 of the thread tooth, and the arc-shaped protrusion 351 is in抵触配合 with the side wall 343 of the thread tooth to achieve centering and supporting of the screw member 34. The lower end surface of the nut 341 is supported by the arc-shaped recess 321, and the side wall 343 of the thread tooth is abutted by the arc-shaped protrusion 351, so that the longitudinal posture of the screw member 34 can be accurately guided and maintained, and it is ensured that the threaded member 34 is precisely aligned with the threaded hole 561. During the installation process of the screw member 34, the nut 341 moves downward along the longitudinal operation path under the drive of the automatic screw locking machine 4, and sequentially passes through the first support plate 32 and the second support plate 35, so that the screw member 34 can smoothly transition and be precisely placed into the target threaded hole 561.

[0042] Refer Figures 3 to 6As shown, the first pallet 32 is configured with a rotating shaft (not labeled) to form a rotating connection with the card holder 31. A torsion spring (not shown) is sleeved outside the rotating shaft. One end of the second pallet 35 away from the card holder 31 is inclined downward toward the longitudinal axis of the card holder 31. A first spring 36 is arranged on the side of the second pallet 35 opposite to the first pallet 32. One end of the first spring 36 away from the second pallet 35 is fixedly connected to the inner wall of the card holder 31. A convex block 33 is formed on the side of the first pallet 32 facing the second pallet 35, so as to make the second pallet 35 rotate by abutting against the convex block 33. An elastic acting force is formed on the first pallet 32 by the torsion spring (not shown) to support the first pallet 32 to hold the nut 341. During the process that the nut 341 is driven by the automatic screw locking machine 4 to move downward along the longitudinal operation path, the first pallet 32 rotates and the torsion spring is compressed. At the same time, the torsion spring will accumulate elastic potential energy and generate a restoring force, so that after the nut 341 passes through the first pallet 32, the torsion spring can drive the first pallet 32 to return to the initial state. An elastic acting force is formed on the second pallet 35 by the first spring 36 to support the second pallet 35 to abut against the screw rod 342. During the process that the nut 341 is driven by the automatic screw locking machine 4 to move downward along the longitudinal operation path, the screw rod 342 moves downward synchronously. Through the elastic acting force formed on the second pallet 35 by the first spring 36, the abutting force of the second pallet 35 against the screw rod 342 can be adjusted, so as to ensure that during the installation process of the screw part 34, the second pallet 35 can form sufficient frictional force on the screw part 34 to make the screw part 34 keep vertical and stable, and avoid difficult operation caused by too tight abutting force on the screw part 34, thereby improving the installation efficiency and accuracy of the screw part 34. During the process that the second pallet 35 rotates under the external force of the convex block 33, the first spring 36 is compressed to accumulate elastic potential energy and generate a restoring force, so that after the nut 341 passes through the second pallet 35, the second pallet 35 is driven to return to the initial state.

[0043] Refer Figures 4 to 6 to Figure 9 As shown, the automatic screw locking machine 4 includes: a screwdriver head 43, and an abutting component 41 formed outside the screwdriver head 43 and arranged on the shell of the automatic screw locking machine 4 for abutting against the first pallet 32; when the screwdriver head 43 engages the nut 341 and drives the nut 341 to move downward longitudinally to the first position, the abutting component 41 abuts against the first pallet 32 to cancel the support of the arc-shaped recess 321 for the nut 341, and the arc-shaped convex part 351 abuts against the screw rod 342; when the screwdriver head 43 drives the nut 341 to move downward longitudinally to the second position, the screw part 34 engages the threaded hole 561, and the abutment of the arc-shaped convex part 351 against the screw rod 342 is cancelled. Refer Figure 4 As shown, the abutting component 41 is aligned with the first pallet 32, and the screwdriver head 43 engages the nut 341; Refer Figure 5As shown, when the screwdriver bit 43 engages the nut 341 and is pushed downward to the first position, the abutting component 41 presses closely against the first support plate 32. During the process of the screwdriver bit 43 continuously pushing the nut 341 downward, the supporting state of the arc-shaped recess 321 on the nut 341 is released. At the same time, the arc-shaped convex portion 351 continues to firmly abut against the screw rod 342 to ensure that the screw member 34 maintains a non-deviating longitudinal working path. Refer Figure 6 As shown, as the screwdriver bit 43 continues to be pushed downward, the nut 341 further moves longitudinally to the second position. At this time, the screw member 34 is successfully engaged with the threaded hole 561, and the abutting of the arc-shaped convex portion 351 against the screw rod 342 is released. The screwdriver bit 43 drives the screw member 34 to smoothly enter and be screwed into the threaded hole 561.

[0044] Refer Figure 4 And Figure 9 As shown, the abutting component 41 includes: a support frame 44, a guide rod 46 longitudinally arranged on the support frame 44, a guide cylinder 47 sleeved outside the guide rod 46 and longitudinally moving relative to the guide rod 46, a second spring 45 sleeved outside the guide rod 46 and clamped between the guide cylinder 47 and the support frame 44, and a contact foot 48 arranged at one end of the guide cylinder 47 away from the support frame 44. During the process of the contact foot 48 abutting against the first support plate 32, the guide cylinder 47 squeezes the second spring 45 to achieve buffering of the rigid force between the contact foot 48 and the first support plate 32. During the process of thread installation between the screw member 34 and the threaded hole 561, through the elastic force formed by the second spring 45 on the guide cylinder 47, the first support plate 32 is always abutted by the contact foot 48 to prevent the first support plate 32 from interfering with the installation process of the screw member 34.

[0045] Refer Figure 1 And Figure 2 As shown, the carrier assembly 2 includes: a lifting assembly 23 arranged on the workbench 1, and a carrier body 21 that is lifted and lowered longitudinally under the control of the lifting assembly 23; a through groove 25 for embedding the load-carrying assembly 3 is formed in the carrier body 21, and the lifting assembly 23 drives the load-carrying assembly 3 to approach or move away from the workpiece 56 to be assembled longitudinally. The carrier body 21 is detachably installed on the mounting seat 22. Exemplarily, the carrier body 21 is detachably installed on the mounting seat 22 by screws, the mounting seat 22 is fixedly connected to the output end of the lifting assembly 23, and the other end of the lifting assembly 23 is installed on the workbench 1; Exemplarily, the lifting assembly 23 is a hydraulic telescopic cylinder; the load-carrying assembly 3 is installed on the carrier body 21, and the carrier body 21 is located on the side of the workpiece 56 to be assembled away from the workbench 1. Under the drive of the lifting assembly 23, the carrier body 21 is used to adjust the distance between the load-carrying assembly 3 and the workpiece 56 to be assembled.

[0046] Refer Figure 1 And Figure 2 And Figure 4As shown, the workpiece 56 to be assembled includes: a circumferential frame plate 6, a back plate 5 disposed on one side of the circumferential frame plate 6 away from the workbench 1, and threaded holes 561 formed on the back plate 5 and the circumferential frame plate 6 for engaging screw members 34; a plurality of deviation correction plates 24 disposed on one side of the stage body 21 facing the workpiece 56 to be assembled corresponding to the outer peripheral sides of the back plate 5 one by one. The deviation correction plates 24 are configured with a rotating shaft (not labeled) to form a rotational connection with the stage body 21, and a torsion spring (not shown) is sleeved outside the rotating shaft. The deviation correction plates 24 are held in a state of being inclined towards the outer peripheral direction of the back plate 5 by the torsion spring. When the loading component 3 approaches the workpiece 56 to be assembled, the deviation correction plates 24 abut against the outer peripheral sides of the back plate 5. The computer main chassis assembly system 100 further includes: clamping components 7 symmetrically disposed on both sides of the workpiece 56 to be assembled, and the clamping components 7 are used for clamping and positioning the workpiece 56 to be assembled. The clamping components 7 include fixed side plates 71, buffer springs 72, and clamping side plates 73. By placing the circumferential frame plate 6 between the paired clamping side plates 73 and under the elastic force of the buffer springs 72, the circumferential frame plate 6 is centered and limited on the workbench 1.

[0047] When the deviation correction plate 24 is in the initial position, reference can be made to Figure 1 , and when the deviation correction plate 24 moves downward, if the back plate 5 is skewed in the front-back direction ( Figure 1 the direction shown by the Y-axis in Figure 1 ), the front-back paired deviation correction plates 24 will abut against the back plate 5 and adjust the back plate 5 towards the middle position in the front-back direction. Similarly, if the back plate 5 is skewed in the left-right direction ( Figure 1 the direction shown by the X-axis in

[0048] ), the left-right paired deviation correction plates 24 will abut against the back plate 5 and adjust the back plate 5 towards the middle position in the left-right direction. Thus, ultimately, the multi-directional extrusion and deviation correction of the back plate 5 by multiple deviation correction plates 24 are achieved. When placing the back plate 5 on the installation side of the circumferential frame plate 6, manual placement is likely to be skewed due to operation errors. Therefore, when the stage body 21 drives the loading component 3 to move towards the back plate 5, the multi-directional extrusion of the back plate 5 by multiple deviation correction plates 24 is performed, and the paired deviation correction plates 24 achieve the centering deviation correction of the back plate 5, so that when the screw members 34 are finally installed, the back plate 5 is centered on the circumferential frame plate 6, ensuring that the threaded holes 561 on the back plate 5 and the circumferential frame plate 6 are accurately aligned and ensuring the installation accuracy.

[0048] Refer to Figure 1 As shown, a plurality of threaded holes 561 are formed on the circumferential frame plate 6 and the back plate 5. By placing a plurality of screw members 34 into the loading component 3, the screw rod 342 passes through Figure 3 the first support plate 32 shown in

[0049] , and the nut 341 is suspended in the arc-shaped recess 321 of the paired first support plates 32, so that before the screwing action of the screw members 34 is performed, the distribution placement of a plurality of screw members 34 is pre-completed, and the plurality of screw members 34 are all in a longitudinal posture, ensuring that the screw members 34 will not be skewed before entering the threaded holes 561.

[0049] It should be noted that different computer cases have different structural dimensions and appearances, so the positions of the threaded holes 561 on the back panel 5 and the circumferential frame 6 vary. Therefore, the position of the loading assembly 3 on the platform body 21 also needs to be adjusted accordingly. To improve the versatility of the loading assembly 3, the following structure is designed (see reference). Figure 3 The platform body 21 has a through groove 25, and the card holder 31 is engaged with the platform body 21 through the through groove 25. The upper outer peripheral edge of the card holder 31 has a flange (not shown), and the lower surface of the flange abuts against the upper surface of the platform body 21. By pre-cutting the through groove 25 at the position corresponding to the threaded hole 561 on the platform body 21, and then engaging the card holder 31 in the through groove 25, the flange makes the card holder 31 precisely limited in the through groove 25, and prevents the card holder 31 from disengaging from the through groove 25 when the screwdriver head 43 pushes the screw 34, ensuring that the card holder 31 is securely installed. If it is necessary to change the corresponding platform body 21 according to the position of the threaded hole 561, the card holder 31 can be removed from the platform body 21 and installed on another platform body 21, so as to be suitable for the assembly of new computer host cases, so as to achieve flexible adaptation of the load component 3, and also facilitate the replacement of the damaged load component 3, making maintenance convenient.

[0050] It should be noted that the computer host assembly system 100, before use, requires the following preparatory work: selecting a suitable platform body 21 according to the distribution of the threaded holes 561, and installing multiple load-bearing components 3 on the platform body 21. Under the drive of the lifting component 23, the platform body 21 is positioned in its initial position, that is, the platform body 21 has the maximum displacement with respect to the worktable 1 (see reference). Figure 1 As shown), the circumferential frame plate 6 is centered and positioned on the worktable 1 by the clamping assembly 7, and then the back plate 5 is placed above the circumferential frame plate 6; in use, multiple screws 34 are placed in multiple load-bearing assemblies 3 at once, i.e. Figure 3As shown, at this time, the first support plate 32 supports the lower end face of the nut 341, and the arc-shaped protrusion 351 abuts against the threaded sidewall 343 of the screw 342, so that the screw 34 maintains a longitudinal posture before installation without human support; then, driven by the lifting assembly 23, the platform body 21 drives the loading assembly 3 to move longitudinally downward, and the back plate 5 is squeezed by the correction plate 24 to realize that the back plate 5 is centered on the circumferential frame plate 6, ensuring that the threaded holes 561 on the back plate 5 and the circumferential frame plate 6 are aligned. Accurate alignment ensures installation precision. Then, an external robotic arm (not shown) controls the automatic screw fastening machine 4 to move longitudinally downwards, aligning the screwdriver head 43 with the nut 341 of the screw part 34 and engaging it. As the nut 341 moves downwards along the longitudinal working path driven by the automatic screw fastening machine 4, until one end of the screw rod 342 falls into the threaded hole 561, the screwdriver head 43, with the auxiliary support of the two sides of the contact feet 48, vertically abuts against the nut 341. The automatic screw fastening machine 4 ensures that the screw 34, once inserted into the threaded hole 561, maintains a longitudinal orientation, thus solving the problem of misalignment caused by manual operation after the screw 34 is inserted into the threaded hole 561. Then, the screwdriver head 43 rotates to drive the screw 34 into the threaded hole 561, completing the installation of one screw 34. The automatic screw fastening machine 4 then moves upwards, causing the screwdriver head 43 to retract above the first support plate 32. At this point, the first support plate 32 rotates back to its initial position under the reset action of the torsion spring, while the second support plate 35 rotates back to its initial position under the reset action of the first spring 36. Repeating these steps allows the automatic screw fastening machine 4 to install multiple screws 34, thus completing the assembly of the back panel 5 and the circumferential frame plate 6. Compared to existing manual assembly methods, this computer chassis assembly system 100 uses automated execution, reducing errors caused by human factors and improving the accuracy and efficiency of the assembly operation.

[0051] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A computer chassis assembly system, characterized in that, include: A worktable for carrying workpieces to be assembled, a platform assembly disposed on the worktable and raised and lowered longitudinally, multiple load assemblies disposed on the platform assembly and holding screws in a longitudinal posture, and an automatic screw fastening machine disposed outside the platform assembly. The loading component and the threaded hole of the workpiece to be assembled are arranged longitudinally. The platform component drives the loading component to move closer to or away from the workpiece to be assembled in the longitudinal direction. When the loading component moves closer to the workpiece to be assembled, the screw is installed in the threaded hole by the automatic screw fastening machine. The loading assembly includes: a card holder, a first tray and a second tray arranged longitudinally and rotatably connected to the inner wall of the card holder, wherein the first tray and the second tray are symmetrically arranged along the longitudinal axis of the card holder; The end of the first support plate away from the inner wall of the card holder is configured with an arc-shaped recess for supporting the nut contained in the screw component, and the end of the second support plate away from the inner wall of the card holder is configured with an arc-shaped protrusion for abutting the screw contained in the screw component, so that the central axis of the screw component is kept longitudinal. The arc-shaped concave portion abuts against the lower end face of the nut, and the arc-shaped convex portion abuts against the thread sidewall of the screw. During the process of the automatic screw fastening machine installing the screw into the threaded hole, the nut passes through the first support plate and the second support plate in sequence along the longitudinal direction; The first tray is configured with a rotating shaft to form a rotatable connection with the card seat. A torsion spring is sleeved on the outside of the rotating shaft. The end of the second tray away from the card seat is inclined downward toward the longitudinal axis of the card seat. A first spring is configured on the side of the second tray opposite to the first tray. The end of the first spring away from the second tray is fixedly connected to the inner wall of the card seat. The side of the first tray facing the second tray is provided with a protrusion so that the second tray can rotate by resisting the protrusion; The automatic screw fastening machine includes: a screwdriver head, and an abutment assembly formed on the outside of the screwdriver head and disposed in the housing of the automatic screw fastening machine for abutting the first tray; When the screwdriver head engages the nut and drives the nut to move longitudinally downward to the first position, the abutting component abuts against the first support plate to cancel the arc-shaped concave portion supporting the nut, and the arc-shaped convex portion abuts against the screw rod; When the screwdriver head drives the nut to move longitudinally downward to the second position, the screw engages the threaded hole and the arcuate protrusion abuts against the screw rod.

2. The computer chassis assembly system according to claim 1, characterized in that, The abutment assembly includes: a support frame, a guide rod arranged longitudinally on the support frame, a guide cylinder sleeved on the outside of the guide rod and moving longitudinally relative to the guide rod, a second spring sleeved on the outside of the guide rod and clamped between the guide cylinder and the support frame, and an abutment foot disposed on the end of the guide cylinder away from the support frame.

3. The computer chassis assembly system according to claim 1, characterized in that, The platform assembly includes: a lifting assembly disposed on the worktable, and a platform body controlled by the lifting assembly to move up and down longitudinally; The platform body has a through slot for the loading component to be embedded, and the lifting component drives the loading component to move closer to or away from the workpiece to be assembled along the longitudinal direction.

4. The computer chassis assembly system according to claim 3, characterized in that, The workpiece to be assembled includes: a circumferential frame plate, and a back plate disposed on the side of the circumferential frame plate away from the worktable, wherein the back plate and the circumferential frame plate are configured with threaded holes for engagement of the screws; The platform body is equipped with a plurality of correction plates that correspond one-to-one with the outer peripheral side of the back plate on the side facing the workpiece to be assembled. The correction plates are configured with a rotating shaft that is rotatably connected to the platform body. A torsion spring is sleeved on the outside of the rotating shaft. The torsion spring keeps the correction plates in an inclined state towards the outer peripheral direction of the back plate. When the loading assembly approaches the workpiece to be assembled, the correction plates abut against the outer peripheral side of the back plate.

5. The computer chassis assembly system according to claim 1, characterized in that, The computer chassis assembly system further includes clamping components symmetrically arranged on both sides of the workpiece to be assembled, the clamping components being used to clamp and position the workpiece to be assembled.

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