Laser carving machine fixing device and method for keyboard machining

Abstract

The invention relates to the technical field of keyboard machining, in particular to a laser engraving machine fixing device for keyboard machining and a method thereof.The laser engraving machine fixing device comprises a base and a platform installed above the base, the bottom end of a support is arranged on one side of the upper portion of the platform, and one side of the top end of the support is further connected with one end of a cross beam; the other end of the cross beam is connected with a laser carving machine, and a fixed bearing assembly is arranged above the platform and located at the lower end of the laser carving machine; the double-head air cylinder works to drive the fixing strips to be close to each other, the keyboard is rapidly and automatically clamped, the clamping operation efficiency is high, manual picking is not needed for keyboard discharging, only the discharging direction needs to be selected, the driving mechanism in the bearing plate is controlled to work, the driving mechanism automatically works, the inclination direction of the bearing plate is selected, and the keyboard can be automatically discharged. And meanwhile, in the inclining process, clamping of the double-end air cylinder is automatically relieved, and the keyboard without clamping is automatically discharged.

Description

Technical Field

[0001] The invention relates to the technical field of keyboard processing, and more specifically to a laser engraving machine fixing device and a method thereof for keyboard processing. Background Art

[0002] Laser engraving, also known as laser engraving or laser marking, is based on CNC technology and uses laser as the processing medium. The physical transformation of the processing material instantly melting and vaporizing under the irradiation of laser engraving can enable laser engraving to achieve the processing purpose. The characteristics of laser processing are: no contact with the material surface, not affected by mechanical movement, no surface deformation, generally no need to fix, not affected by the elasticity and flexibility of the material, convenient for soft materials, high processing precision, fast speed, and wide application fields.

[0003] For keyboard processing, laser engraving technology is also used to print labels on the keyboard. At present, there are laser engraving devices for keyboard processing on the market, and there are also laser engraving fixing devices specifically used for keyboard fixing. For example, patent publication number CN214684818U is a computer keyboard laser engraving fixing device. The fixing device moves two sets of clamping plates to both sides of the computer keyboard and fixes the computer keyboard through a fixing mechanism, thereby fixing the computer keyboard and facilitating the precise printing of the laser nozzle to fix the keyboard.

[0004] However, the function of this device is relatively simple, which is mainly reflected in the driving method for fixing and clamping the keyboard. For keyboard processing manufacturers, mass production of keyboards uses a fixing device that is so slow and needs to be adjusted each time. Obviously, this will naturally reduce the processing efficiency. In addition, the fixing device can only provide a fixed clamping function, which is of no help for loading and unloading the keyboard workpiece. This will lead to reduced efficiency and affect the company's production.

[0005] To this end, we disclose a laser engraving machine fixing device and method for keyboard processing. Summary of the invention

[0006] The purpose of the present invention is to provide a laser engraving machine fixing device for keyboard processing to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a laser engraving machine fixing device for keyboard processing, comprising a base, and a platform installed above the base, wherein the bottom end of a bracket is arranged on one side above the platform, and one end of a beam is connected to the top side of the bracket, and the other end of the beam is connected to the laser engraving machine, and a fixed bearing component is arranged above the platform at the lower end of the laser engraving machine; The fixed bearing assembly comprises a bearing part mounted on the platform, and a fixing part arranged on the bearing part, and blanking plates with one end tilted downward are symmetrically mounted on both sides of the fixed bearing assembly; The fixing part is used to place and fix the keyboard for laser processing; the bearing part is used to tilt and automatically unload the fixing part and the keyboard after laser engraving processing; The fixing part includes a bearing plate, a groove provided inside the bearing plate, and a mounting groove provided longitudinally at the center of the groove, a double-headed cylinder is provided at the center of the mounting groove, two fixing bars are symmetrically provided on both sides of the groove, and the two ends of the double-headed cylinder are respectively connected to the bottom ends of the fixing bars, and two control switches are symmetrically provided at both ends of either side of the bearing plate, and the two control switches are used to control the contraction of the double-headed cylinder; The bearing part includes a bearing seat, a flipping mechanism installed at the four top corners of the bearing seat, and a driving mechanism installed on both sides of the bearing seat. The bearing plate is connected to the bearing seat through four flipping mechanisms. The driving mechanism is used to trigger the flipping direction of the flipping mechanism. During the flipping process, the bearing plate contacts the fixing mechanism and realizes keyboard unloading.

[0008] A further technical solution of the present application is as follows: the flip mechanism comprises overlapping blocks installed at the four top corners of the bearing seat, overlapping shaft holes opened on one side of the upper end of the overlapping blocks, and a limiting cylinder installed on the other side of the upper end of the overlapping blocks, a rotating shaft is arranged inside each of the overlapping shaft holes, and the four rotating shafts are all connected to the side of the bearing plate, a locking pin is inserted through each of the limiting cylinders, and the end of the locking pin extends to the top of the overlapping shaft hole to lock the rotating shaft; A half gear is sleeved on the outer side of a single rotating shaft and is mirror-imaged with the half gear on the same side of the bearing seat.

[0009] A further technical solution of the present application is as follows: the driving mechanism comprises side seats installed on both sides of the bearing seat, a moving groove opened on the upper part of the side seat, and a moving rod slidably arranged in the moving groove, and racks are symmetrically arranged on both sides above the moving rod, and the racks can mesh with the adjacent half gears; A driving groove connected to the moving groove is also provided at the lower part of the side seat, a driving motor is installed at one end of the driving groove, a driving screw is connected to the power output shaft of the driving motor, a driving screw sleeve is matched and connected to the outer side of the driving screw, the upper end of the driving screw sleeve is connected to the lower end surface of the moving rod, and limit blocks slidably connected to the driving groove are symmetrically arranged on both sides of the driving screw sleeve; A limit seat is also installed at the center above the bearing seat, a bottom plate is slidably installed inside the limit seat, cross bars are installed at both ends of the bottom plate, and four locking pins are respectively installed at both ends of the two cross bars.

[0010] A further technical solution of the present application is that the two top end surfaces of a single movable rod are both installed with one end of an extension rod, the other end of the extension rod is rotatably connected to one end of a stop block, and the other end of the stop block abuts against the outer side surface of the cross bar.

[0011] A further technical solution of the present application is as follows: two trigger mechanisms are also installed on the side of the limit cylinder close to the control switch, and a single trigger mechanism includes an adjustment seat, a trigger rod obliquely inserted into the adjustment seat, and a plurality of positioning holes passing through the trigger rod and the adjustment seat, and the top end of the trigger rod interferes with the control switch on the supporting plate.

[0012] A further technical solution of the present application is that the lower end of a single fixing bar is also connected to one end of a plurality of stabilizing blocks, and the other ends of the plurality of stabilizing blocks are all slidably connected to the bearing plate.

[0013] A further technical solution of the present application is that the side surfaces of the two fixing bars close to each other are both inclined structures.

[0014] A further technical solution of the present application is that guide strips are symmetrically arranged on the blanking plate.

[0015] A further technical solution of the present application is that the cross section of the moving rod is a regular trapezoid.

[0016] A method for fixing a laser engraving machine for keyboard processing, the method comprising the following steps: S1. Place the keyboard to be laser engraved in the fixed part above the fixed bearing assembly, and control the double-headed cylinder to work through the control switch set on the bearing plate in the fixed part. The two ends of the double-headed cylinder contract, driving the fixing bars to move closer to each other, and clamping and fixing the keyboard; S2, the laser engraving machine works to perform laser engraving on the keyboard; S3, after the processing is completed, the driving mechanism inside the bearing part works to select the direction of material removal, and at the same time triggers the flipping mechanism in the direction of material removal to work, and the flipping mechanism drives the bearing plate to flip, and during the flipping process, it contacts the fixing mechanism, and the fixing mechanism releases the fixing of the processed keyboard; S4. The keyboard falls by gravity, slides into the blanking plate, and finally falls into the material frame. Finally, the load-bearing plate is reset by the flipping mechanism, and the process repeats like this to carry out the laser engraving of the keyboard.

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a laser engraving machine, a platform and a fixed bearing component. First, the fixed bearing component is installed above the platform. During use, the keyboard to be processed is placed in the fixed part inside the fixed bearing component. The fixed part works through the double-headed cylinder to drive the fixed bars to move closer to each other, so as to realize fast and automatic clamping of the keyboard. The clamping operation is efficient and no other operations are required. In addition, the inner side surface of the fixed bar is provided with an inclined surface, which can effectively fit the side surfaces of keyboards of different shapes, and the efficiency is higher. Secondly, for the unloading of the keyboard, no manual picking is required. It is only necessary to select the unloading direction and control the operation of the driving mechanism inside the bearing plate. The driving mechanism works automatically to select the tilting direction of the bearing plate. At the same time, in the process of tilting, the clamping of the double-headed cylinder is automatically released, and the unclamped keyboard is automatically unloaded and falls into the material frame through the inclined unloading plate. In this way, the automatic unloading operation is realized, which greatly improves the efficiency of laser engraving processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the laser engraving machine fixing device for keyboard processing provided by the present invention; Figure 2 It is a structural schematic diagram of the fixed bearing assembly in the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 It is a structural schematic diagram of the bearing part in the present invention; Figure 5 It is a schematic diagram of the structure of the side seat and the moving rod in the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the driving mechanism in the present invention.

[0019] Explanation of the symbols in the schematic diagram: 1. Base; 2. Platform; 3. Fixed bearing assembly; 4. Bracket; 5. Laser engraving machine; 6. Blanking plate; 7. Bearing plate; 8. Double-headed cylinder; 9. Mounting slot; 10. Stabilizing block; 11. Control switch; 12. Trigger rod; 13. Limiting cylinder; 14. Adjusting seat; 15. Positioning hole; 16. Locking pin; 17. Bottom plate; 18. Cross bar; 19. Side seat; 20. Fixed bar; 21. Bearing seat; 22. Guide bar; 23. Rack; 24. Moving rod; 25. Rotating shaft; 26. Half gear; 27. Stop block; 28. Extension rod; 29. ​​Driving motor; 30. Driving screw; 31. Limiting block; 32. Driving screw sleeve; 33. Overlap block; 34. Overlap shaft hole; 35. Limiting seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0021] See also Figures 1 to 6 In one embodiment of the present application, a laser engraving machine 5 fixing device for keyboard processing includes a base 1 and a platform 2 installed above the base 1, a bottom end of a bracket 4 is arranged on one side above the platform 2, one end of a beam is connected to the top side of the bracket 4, and the other end of the beam is connected to the laser engraving machine 5, and a fixed bearing component 3 is arranged above the platform 2 and at the lower end of the laser engraving machine 5; The fixed bearing assembly 3 includes a bearing portion mounted on the platform 2 and a fixing portion disposed on the bearing portion. A blanking plate 6 with one end tilted downward is symmetrically mounted on both sides of the fixed bearing assembly 3. The fixing part is used to place and fix the keyboard for laser processing; the bearing part is used to tilt and automatically unload the fixing part and the keyboard after laser engraving processing; The fixing part includes a bearing plate 7, a groove provided inside the bearing plate 7, and a mounting groove 9 provided longitudinally at the center of the groove. A double-headed cylinder 8 is provided at the center of the mounting groove 9. Two fixing bars 20 are symmetrically provided on both sides of the groove, and the two ends of the double-headed cylinder 8 are respectively connected to the bottom ends of the fixing bars 20. Two control switches 11 are symmetrically provided at both ends of any one side of the bearing plate 7. Both control switches 11 are used to control the contraction of the double-headed cylinder 8. The bearing part includes a bearing seat 21, a flipping mechanism installed at the four top corners of the bearing seat 21, and a driving mechanism installed on both sides of the bearing seat 21. The bearing plate 7 is connected to the bearing seat 21 through four flipping mechanisms. The driving mechanism is used to trigger the flipping direction of the flipping mechanism. During the flipping process, the bearing plate 7 contacts the fixing mechanism and realizes keyboard unloading.

[0022] This embodiment is implemented as follows: first, the keyboard to be laser engraved needs to be placed in the groove inside the carrier plate 7, and then the control switch 11 set above the carrier plate 7 is controlled. The control switch 11 controls the double-headed cylinder 8 to work, and the two ends of the double-headed cylinder 8 are contracted, driving the fixing bars 20 to move closer to each other, so as to clamp and fix the keyboard; then the laser engraving machine 5 works to perform laser engraving on the keyboard; after the processing is completed, when it is necessary to unload the material, the driving mechanism inside the bearing part is controlled to work to select the unloading direction. During the driving work and movement process, the flipping mechanism in the unloading direction will be triggered to work at the same time, and the flipping mechanism drives the carrier plate 7 to flip. During the flipping process, it contacts the control switch 11 above the carrier plate 7. At the same time, it should be noted that only after the carrier plate 7 has been flipped to a certain angle, the flipping mechanism will contact the control switch 11, and the control switch 11 will be triggered to release the retraction of the double-headed cylinder 8, and the double-headed cylinder 8 drives the fixing bars 20 to move away from each other, so as to achieve the release of the processed keyboard; Then, the keyboard can fall down by its own gravity, slide into the blanking plate 6, and finally fall into the material frame. Finally, the supporting plate 7 is driven to reset by the flipping mechanism, and the keyboard laser engraving process is carried out in this way.

[0023] See also Figures 1 to 6 As a preferred embodiment of the present application, the flip mechanism includes a lap block 33 installed at the four top corners of the bearing seat 21, a lap shaft hole 34 opened on one side of the upper end of the lap block 33, and a limit cylinder 13 installed on the other side of the upper end of the lap block 33. A rotating shaft 25 is arranged inside each of the lap shaft holes 34, and the four rotating shafts 25 are connected to the side of the bearing plate 7. A locking pin 16 is inserted through the inside of each of the limit cylinders 13, and the end of the locking pin 16 extends to the top of the lap shaft hole 34 to lock the rotating shaft 25. A half gear 26 is sleeved on the outer side of the single rotating shaft 25 , and the half gears 26 on the same side of the bearing seat 21 are arranged in a mirror image with each other.

[0024] Furthermore, the driving mechanism includes a side seat 19 installed on both sides of the bearing seat 21, a moving groove opened on the upper part of the side seat 19, and a moving rod 24 slidably arranged inside the moving groove, and racks 23 are symmetrically arranged on both sides above the moving rod 24, and the racks 23 can be meshed with the adjacent half gears 26; A driving groove connected to the moving groove is also provided at the lower part of the side seat 19, a driving motor 29 is installed at one end of the driving groove, a driving screw 30 is connected to the power output shaft of the driving motor 29, a driving screw sleeve 32 is connected to the outer side of the driving screw 30 with a matching thread, the upper end of the driving screw sleeve 32 is connected to the lower end surface of the moving rod 24, and limit blocks 31 sliding with the driving groove are symmetrically provided on both sides of the driving screw sleeve 32; A limit seat 35 is also installed at the center above the bearing seat 21 , and a bottom plate 17 is slidably installed inside the limit seat 35 . Both ends of the bottom plate 17 are installed with cross bars 18 , and four locking pins 16 are respectively installed at both ends of the two cross bars 18 .

[0025] Furthermore, one end of an extension rod 28 is installed on the two top end surfaces of the single moving rod 24 , and the other end of the extension rod 28 is rotatably connected to one end of a stop block 27 , and the other end of the stop block 27 abuts against the outer side surface of the cross bar 18 .

[0026] Furthermore, two trigger mechanisms are installed on the side of the limit tube 13 near the control switch 11. A single trigger mechanism includes an adjustment seat 14, a trigger rod 12 obliquely inserted into the adjustment seat 14, and a plurality of positioning holes 15 passing through the trigger rod 12 and the adjustment seat 14. The top end of the trigger rod 12 contacts the control switch 11 on the supporting plate 7.

[0027] Furthermore, the cross section of the moving rod 24 is a regular trapezoid.

[0028] This embodiment is implemented as follows: in the actual material discharge process, the driving mechanism needs to work first. The driving mechanism is actually operated by the driving motor 29 at the bottom of the side seat 19, which drives the driving screw 30 to rotate, and the driving screw 30 drives the outer driving screw sleeve 32 to rotate. At the same time, since the limit blocks 31 on both sides of the driving screw sleeve 32 slide inside the driving groove, the driving screw sleeve 32 is driven to move horizontally on the outer side of the driving screw 30. The direction of the horizontal movement is determined by the forward and reverse rotation of the driving motor 29, and the direction of the horizontal movement is also the direction of material discharge. At the same time, the driving screw sleeve 32 will drive the The moving rod 24 connected to the upper end is displaced. During the displacement of the moving rod 24, the rack 23 at the upper end thereof is driven to move. Racks 23 are provided at both ends of the moving rod 24. For example, when the material unloading direction is the left side, the moving rod 24 needs to move to the right. At this time, the rack 23 on the left side is meshed with the half gear 26, and the rack 23 on the right side is released from meshing with the half gear 26. During the movement of the rack 23 on the left side, the half gear 26 is driven to rotate. When the half gear 26 rotates, the rotating shaft 25 is driven to rotate, thereby realizing the rotation and tilting of the bearing plate 7 and the keyboard. It should be noted that, in the initial state, the rotating shaft 25 is placed inside the overlapping shaft hole 34, and the upper end of the overlapping shaft hole 34 is open, the purpose is to realize rotation after the overlapping shaft hole 34 at one end is fixed by the locking pin 16, and at the same time, the overlapping shaft hole 34 at the other side will not be blocked, so that the rotation and tilting of the bearing plate 7 can be realized. The present invention installs a limit seat 35 above the bearing seat 21, and a slidable bottom plate 17 is arranged inside the limit seat 35. The two ends of the bottom plate 17 are connected to the cross bar 18, and the two ends of the cross bar 18 are connected to the locking pin 16. The movement of the bottom plate 17 drives the movement of the cross bar 18, ensuring that the locking pin 16 at one end is in a locked state, and the other end is automatically unlocked. At the same time, the movement of the bottom plate 17 is triggered by the extension rods 28 and the stop blocks 27 provided at both ends of the moving rod 24. In this way, the movement of the bottom plate 17 and the cross bar 18 can be effectively triggered during the operation of the driving assembly, thereby ensuring the stable operation of the locking pin 16 and the connecting shaft. At the same time, the moving rod 24 adopts a design of a regular trapezoidal cross section to ensure the stability of the moving rod 24 during the movement, and the stop block 27 set at the end of the extension rod is a rotation setting to ensure that the stop block 27 can rotate, and the user can control and select the movement of the bottom plate 17; The above operations are only operations for tilting and rotating the carrying plate 7. As for how to automatically control the operation of the double-headed cylinder 8 and release the fixation of the keyboard when the carrying plate 7 rotates and tilts, two trigger mechanisms are arranged on the side of the limit tube 13 close to the control switch 11. A single trigger mechanism includes an adjustment seat 14, a trigger rod 12 obliquely inserted into the adjusting seat 14, and a plurality of positioning holes 15 that pass through the trigger rod 12 and the adjustment seat 14. During the rotation and tilting process of the carrying plate 7, it will slowly lift up. During the lifting process, the end of the trigger rod 12 automatically contacts the control switch 11, thereby realizing the control of the double-headed cylinder 8 and realizing automatic unloading. The overall operation is convenient and no additional manual operation is required. In addition, the length of the trigger rod 12 can be controlled, which means that the trigger time or the trigger angle can be controlled to ensure that the impact force of the keyboard during unloading can be adjusted by itself.

[0029] See also Figure 1 , Figure 2 and Figure 4 As a preferred embodiment of the present application, the lower end of the single fixing bar 20 is also connected to one end of a plurality of stabilizing blocks 10 , and the other ends of the plurality of stabilizing blocks 10 are all slidably connected to the bearing plate 7 .

[0030] Furthermore, the sides of the two fixing bars 20 that are close to each other are inclined.

[0031] Furthermore, guide strips 22 are symmetrically arranged on the blanking plate 6 .

[0032] This embodiment is implemented as follows: the stabilizing block 10 is for stable movement during the movement of the fixing bar 20, and the sides of the fixing bar 20 that are close to each other are inclined structures, the purpose of which is to better contact the keyboard side of the inclined mechanism for easy fixation; and as for the guide bars 22 symmetrically arranged on the blanking plate 6, they are for guidance during the keyboard blanking process and to place the offset.

[0033] See also Figures 1 to 6 The method of fixing the laser engraving machine 5 for keyboard processing of the present invention comprises the following steps: S1. Place the keyboard to be laser engraved in the fixed part above the fixed bearing assembly 3, and control the double-headed cylinder 8 to work through the control switch 11 set on the bearing plate 7 in the fixed part. The two ends of the double-headed cylinder 8 contract, driving the fixing bars 20 to move closer to each other, so as to clamp and fix the keyboard; S2, laser engraving machine 5 works to perform laser engraving on the keyboard; S3, after the processing is completed, the driving mechanism inside the bearing part works to select the material unloading direction, and at the same time triggers the flipping mechanism of the material unloading direction to work, and the flipping mechanism drives the bearing plate 7 to flip, and during the flipping process, it contacts the fixing mechanism, and the fixing mechanism releases the fixing of the processed keyboard; S4, the keyboard falls down by gravity, slides into the blanking plate 6, and finally falls into the material frame. Finally, the carrying plate 7 is driven to reset by the flip mechanism, and this reciprocating process is carried out for the keyboard laser engraving process.

[0034] In summary, the present invention is provided with a laser engraving machine 5, a platform 2 and a fixed bearing assembly 3. First, the fixed bearing assembly 3 is installed above the platform 2. During use, the keyboard to be processed is placed in the fixed part inside the fixed bearing assembly 3. The fixed part works through the double-headed cylinder 8 to drive the fixed bars 20 to move closer to each other, so as to realize fast and automatic clamping of the keyboard. The clamping operation is efficient and no other operations are required. In addition, the inner side surface of the fixed bar 20 is provided with an inclined surface, which can effectively fit the side surfaces of keyboards of different shapes, and the efficiency is higher. Secondly, for the unloading of the keyboard, no manual picking is required. It is only necessary to select the unloading direction and control the operation of the driving mechanism inside the bearing plate 7. The driving mechanism works automatically to select the tilting direction of the bearing plate 7. At the same time, in the process of tilting, the clamping of the double-headed cylinder 8 is automatically released, and the unclamped keyboard is automatically unloaded and falls into the material frame through the inclined unloading plate 6. In this way, the automatic unloading operation is realized, which greatly improves the efficiency of laser engraving processing.

[0035] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser engraving machine fixing device for keyboard processing, comprising a base (1) and a platform (2) installed above the base (1), wherein the bottom end of a bracket (4) is arranged on one side above the platform (2), and one end of a crossbeam is connected to one side of the top end of the bracket (4), and the other end of the crossbeam is connected to a laser engraving machine (5), characterized in that: A fixed bearing component (3) is arranged above the platform (2) and at the lower end of the laser engraving machine (5); The fixed bearing assembly (3) comprises a bearing portion mounted on the platform (2) and a fixing portion arranged on the bearing portion, and blanking plates (6) with one end tilted downward are symmetrically mounted on both sides of the fixed bearing assembly (3); The fixing part is used to place and fix the keyboard for laser processing; the bearing part is used to tilt and automatically unload the fixing part and the keyboard after laser engraving processing; The fixing portion comprises a bearing plate (7), a groove formed inside the bearing plate (7), and a mounting groove (9) formed longitudinally at the center of the groove; a double-headed cylinder (8) is arranged at the center of the mounting groove (9); two fixing bars (20) are symmetrically arranged on both sides of the groove, and the two ends of the double-headed cylinder (8) are respectively connected to the bottom ends of the fixing bars (20); two control switches (11) are symmetrically arranged at both ends of any one side of the bearing plate (7), and the two control switches (11) are used to control the contraction of the double-headed cylinder (8); The bearing portion comprises a bearing seat (21), a turning mechanism installed at four corners of the bearing seat (21), and a driving mechanism installed at both sides of the bearing seat (21); the bearing plate (7) is connected to the bearing seat (21) via the four turning mechanisms; the driving mechanism is used to trigger the turning direction of the turning mechanism; during the turning process of the bearing plate (7), the fixing mechanism contacts the turning mechanism and the keyboard is unloaded.

2. The laser engraving machine fixing device for keyboard processing according to claim 1 is characterized in that: The flip mechanism comprises a lap block (33) installed at four top corners of the bearing seat (21), a lap shaft hole (34) opened on one side of the upper end of the lap block (33), and a limit cylinder (13) installed on the other side of the upper end of the lap block (33), a rotating shaft (25) is arranged inside each of the lap shaft holes (34), and the four rotating shafts (25) are all connected to the side of the bearing plate (7), a locking pin (16) is inserted through each of the limit cylinders (13), and the end of the locking pin (16) extends to the top of the lap shaft hole (34) to lock the rotating shaft (25); A half gear (26) is sleeved on the outer side of a single rotating shaft (25), and is arranged in a mirror image with the half gear (26) on the same side of the bearing seat (21).

3. The laser engraving machine fixing device for keyboard processing according to claim 2 is characterized in that: The driving mechanism comprises a side seat (19) mounted on both sides of the bearing seat (21), a moving groove opened on the upper part of the side seat (19), and a moving rod (24) slidably arranged in the moving groove, and racks (23) are symmetrically arranged on both sides above the moving rod (24), and the racks (23) can mesh with the adjacent half gears (26); A driving groove connected to the moving groove is also provided at the lower part of the side seat (19); a driving motor (29) is installed at one end of the driving groove; a driving screw (30) is connected to the power output shaft of the driving motor (29); a driving screw sleeve (32) is connected to the outer side of the driving screw (30); the upper end of the driving screw sleeve (32) is connected to the lower end surface of the moving rod (24); and limit blocks (31) slidably connected to the driving groove are symmetrically provided on both sides of the driving screw sleeve (32); A limit seat (35) is also installed at the center above the bearing seat (21), and a bottom plate (17) is slidably installed inside the limit seat (35). Both ends of the bottom plate (17) are installed with cross bars (18), and four locking pins (16) are respectively installed at both ends of the two cross bars (18).

4. The laser engraving machine fixing device for keyboard processing according to claim 3 is characterized in that: One end of an extension rod (28) is mounted on both top end surfaces of the single moving rod (24), and the other end of the extension rod (28) is rotatably connected to one end of a stop block (27), and the other end of the stop block (27) contacts the outer side surface of the cross bar (18).

5. The laser engraving machine fixing device for keyboard processing according to claim 3 is characterized in that: Two trigger mechanisms are also installed on the side of the limit tube (13) close to the control switch (11), and each of the trigger mechanisms includes an adjustment seat (14), a trigger rod (12) obliquely inserted into the adjustment seat (14), and a plurality of positioning holes (15) passing through the trigger rod (12) and the adjustment seat (14), and the top end of the trigger rod (12) contacts the control switch (11) on the carrier plate (7).

6. The laser engraving machine fixing device for keyboard processing according to claim 1, characterized in that: The lower end of a single fixing bar (20) is also connected to one end of a plurality of stabilizing blocks (10), and the other ends of the plurality of stabilizing blocks (10) are all slidably connected to the inside of the bearing plate (7).

7. The laser engraving machine fixing device for keyboard processing according to claim 1, characterized in that: The side surfaces of the two fixing strips (20) that are close to each other are both inclined structures.

8. The laser engraving machine fixing device for keyboard processing according to claim 1, characterized in that: Guide strips (22) are symmetrically arranged on the blanking plate (6).

9. The laser engraving machine fixing device for keyboard processing according to claim 3, characterized in that: The cross section of the moving rod (24) is a regular trapezoid.

10. A method for fixing a laser engraving machine for keyboard processing, characterized in that: The method for fixing a laser engraving machine for keyboard processing according to any one of claims 1 to 9 comprises the following steps: S1. Place the keyboard to be laser engraved in the fixed part above the fixed bearing assembly (3), and control the double-headed cylinder (8) to work through the control switch (11) provided on the bearing plate (7) in the fixed part, so that the two ends of the double-headed cylinder (8) contract, driving the fixing bars (20) to move closer to each other, thereby clamping and fixing the keyboard; S2, the laser engraving machine (5) works to perform laser engraving on the keyboard; S3, after the processing is completed, the driving mechanism inside the bearing part works to select the direction of material removal, and at the same time triggers the flipping mechanism in the direction of material removal to work, and the flipping mechanism drives the bearing plate (7) to flip, and during the flipping process, it contacts the fixing mechanism, and the fixing mechanism releases the fixing of the processed keyboard; S4, the keyboard falls down by gravity, slides into the blanking plate (6), and finally falls into the material frame. Finally, the supporting plate (7) is driven to reset by the flipping mechanism, and the keyboard laser engraving process is carried out in this way.

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