Drilling device and method for finish machining of machine head of sewing machine

Abstract

The drilling device comprises a machine tool and a drilling unit, the drilling unit is arranged in the machine tool to conduct drilling machining on a machine head body of the sewing machine, and the drilling unit comprises a first air cylinder, a fixing box, a drill bit, a bearing and a dismounting and mounting assembly; a first air cylinder is fixedly installed on the upper side wall body of the machine tool, an output shaft at the lower end of the first air cylinder is fixedly connected with a fixing box, a bearing is arranged on the front side of the fixing box, and one end of the drill bit penetrates through the bearing to be installed in the fixing box. The dismounting and mounting assembly comprises a fixing mechanism for mounting the sewing machine head body and a replacing mechanism for replacing the sewing machine head body; by means of the automatic drill bit replacing device, time is greatly saved, production efficiency is improved, production stagnation caused by manual drill bit replacing after shutdown is greatly reduced, and a powerful guarantee is provided for large-scale sewing machine head production.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing machine heads, and specifically to a drilling device and method for precision machining of sewing machine heads. Background Art

[0002] In the field of sewing machine manufacturing, the head is a core component, and its machining accuracy plays a key role in the overall performance of the sewing machine. During the precision machining of the head, drilling is an extremely important process, and the accuracy, efficiency, etc. of drilling directly affect the assembly of subsequent components and the use effect of the sewing machine.

[0003] Currently, in the processing of traditional sewing machine head drilling devices, the drill bit is often fixed to the driving motor through a fixing mechanism. As the drilling time increases, the drill bit will be worn. When replacing the drill bit, most devices still require manual replacement by workers, resulting in low efficiency, and thus leading to low drilling efficiency, which is difficult to meet the needs of large-scale production and limits the improvement of the production efficiency of sewing machine heads. Summary of the Invention

[0004] The purpose of the present invention is to provide a drilling device and method for precision machining of sewing machine heads, so as to solve the problem that in the processing of traditional sewing machine head drilling devices, the drill bit is often fixed to the driving motor through a fixing mechanism. As the drilling time increases, the drill bit will be worn. When replacing the drill bit, most devices still require manual replacement by workers, resulting in low efficiency, and thus leading to low drilling efficiency, which is difficult to meet the needs of large-scale production and limits the improvement of the production efficiency of sewing machine heads.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A drilling device for precision machining of sewing machine heads, comprising a machine tool, on the front side of which there are two symmetrically distributed storage doors slidingly arranged; a drilling unit, which is arranged inside the machine tool to perform drilling on the sewing machine head body. The drilling unit includes a cylinder 1, a fixed box, a drill bit, a bearing, and a disassembly and assembly component. A cylinder 1 is fixedly installed on the upper side wall of the machine tool, the lower output shaft of the cylinder 1 is fixedly connected to the fixed box, the fixed box is slidably connected to the inner wall of the machine tool, a bearing is arranged on the front side of the fixed box, one end of the drill bit passes through the bearing and is installed in the fixed box, and the disassembly and assembly component includes a fixing mechanism for installing the sewing machine head body and a replacement mechanism for replacing the sewing machine head body. The fixing mechanism is arranged in the fixed box, and the replacement mechanism is arranged in the machine tool; and a clamping unit, which is arranged inside the lower side of the machine tool and is used for fixedly installing the sewing machine head body.

[0006] In a preferred embodiment: The fixing mechanism includes a circular block, a gear ring, a tooth groove, a first gear, a first threaded column, a first threaded plate, a connecting column, a clamping plate, and a driving member. A tooth groove is formed on the wall of the circular block. The tooth groove is engaged with a first gear. A first threaded column is fixedly connected to the inner wall of the first gear. A plurality of the first threaded columns are threadedly connected to a first threaded plate. One end of the first threaded plate is slidably connected to the inner wall of the fixing box. One end of the first threaded plate close to the sewing machine head body is fixedly connected to a connecting column. One end of the connecting column away from the first threaded plate is fixedly connected to a clamping plate. A gear ring is fixedly connected to the wall of the circular block. The gear ring is driven to rotate by the driving member.

[0007] In a preferred embodiment: A first rotating plate is slidably connected to the inner walls of a plurality of the clamping plates. One end of the first rotating plate is slidably connected to a second rotating plate. One end of the second rotating plate is fixedly connected to the output shaft of a sixth motor. The sixth motor is installed in the fixing box.

[0008] In a preferred embodiment: The driving member includes a second gear engaged with the gear ring and a first motor installed inside the fixing box. The output shaft of the first motor is fixedly connected to the second gear. A groove is provided at one end of the circular block. A plurality of equally spaced first support columns are slidably provided in the groove. One end of the first support column away from the groove is fixedly connected to the inner wall of the fixing box. One end of the first threaded column is rotatably connected to a second support column. One end of the second support column away from the first threaded column is fixedly connected to the inner wall of the fixing box.

[0009] In a preferred embodiment: The replacement mechanism includes a second cylinder whose output shaft sidewall is movably connected to the machine tool wall, a second motor fixedly connected to the output shaft of the second cylinder, a replacement box fixedly connected to the output shaft of the second motor, a reinforcement member provided in the replacement box, and a feeding member provided on one side of the machine tool for transporting the replacement sewing machine head body. The reinforcement member includes two symmetrically distributed third cylinders installed in the replacement box and a first clamping block fixedly connected to one end output shaft of the third cylinder.

[0010] In a preferred embodiment: The feeding member includes a fourth cylinder, a sliding box, a third motor, a second threaded column, a second threaded plate, and a second clamping block. The sliding box is movably connected to the machine tool wall. One side of the sliding box is connected to the output shaft of the fourth cylinder. A third motor is installed on the inner wall of the sliding box. The two output shafts of the third motor are fixedly connected to the second threaded column. The second threaded column is rotatably connected to the inner wall of the sliding box. The second threaded column is threadedly connected to the second threaded plate. One end of the second threaded plate is fixedly connected to the second clamping block. One end wall of the second threaded plate is slidably connected to the inner wall of the sliding box. One end of the fourth cylinder is installed on the first base. The lower end of the sliding box is slidably connected to the first base. One end of the second cylinder is fixedly connected to one side wall of the base.

[0011] In a preferred embodiment: The clamping unit includes a second base, a first chassis, a drive shaft, a clamping plate, and a moving component. The moving component is disposed at the lower end of the second base. Two first chassis are fixedly connected to the upper end of the second base. Motors four are installed in each of the first chassis. The drive shaft is fixedly connected to the upper output shaft of the motor four. The clamping plate is fixedly connected to the outer wall of the drive shaft.

[0012] In a preferred embodiment: The moving component includes a second chassis, a motor five, a ball screw, a fixed block, a first slider, a sliding plate, a fifth cylinder, a sliding groove, a second slider, and an electric telescopic column. The second chassis is installed in the machine tool. The motor five is installed in the second chassis. The output shaft of the motor five is fixedly connected to the ball screw. The fixed block is fixedly installed at the lower end of the machine tool. The first slider is slidably connected in the fixed block. The slider is threadedly connected to the ball screw. The first slider is fixedly connected to the sliding plate at the upper end. The fifth cylinder is fixedly connected to one side of the sliding plate. A plurality of equidistantly distributed sliding grooves are also formed in the sliding plate. The second slider is slidably disposed in three of the sliding grooves. The output shaft of the fifth cylinder is fixedly connected to one of the second sliders. Two electric telescopic columns are fixedly connected to one of the second sliders.

[0013] In a preferred embodiment: The upper output shaft of the electric telescopic column is fixedly connected to the lower end of the second base. A plurality of telescopic columns are also installed between the second slider and the second base.

[0014] A method for a drilling device used in the finish machining of a sewing machine head is as follows: S1. Install the sewing machine head body. Place the sewing machine head body to be machined on the clamping plate of the clamping unit. Start the motor four in the first chassis. The output shaft of the motor four drives the drive shaft to rotate, and then the clamping plate on the outer wall of the drive shaft rotates to perform preliminary fixing and positioning on the sewing machine head body. S2. Install the drill bit. According to the size specification of the drill bit, start the motor one in the fixed box. The output shaft of the motor one drives the second gear to rotate. The second gear meshes with the toothed ring, thereby driving the circular block to rotate. The tooth grooves on the wall of the circular block mesh with the first gear, causing the first gear to rotate. The threaded column one fixedly connected to the inner wall of the first gear rotates accordingly. Since the threaded column one is threadedly connected to the first threaded plate and one end of the first threaded plate is slidably connected to the inner wall of the fixed box, the first threaded plate slides along the inner wall of the fixed box under the drive of the threaded column one, and the connecting column and the clamping plate move accordingly to precisely clamp and fix the drill bit. S3, adjust the position of the sewing machine head body, start the motor 5 in the chassis 2, drive the ball screw to start rotating, and the slider 1 will move linearly along the track of the fixed block, and the slide plate will move synchronously, then start the cylinder 5, and its output shaft will push one of the sliders 2 connected to it to slide in the slide groove, so as to adjust the front and rear position of the sewing machine head body, and by controlling the telescopic length of the electric telescopic column, the base 2 can be accurately moved in the vertical direction; S4, drilling a hole in the sewing machine head body, after fixing the sewing machine head body, start the cylinder 1 on the upper wall of the machine tool, the lower end output shaft of the cylinder 1 drives the fixed box to move downward, and then start the motor 6 to drive the rotating plate 2 to rotate, and then drive the rotating plate 1 to rotate, thereby driving the drill bit to rotate to drill the sewing machine head body.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: The present invention significantly improves the drill bit replacement efficiency by providing a special disassembly and assembly component to meet the needs of large-scale production. In actual production, when a new drill bit needs to be replaced after the drilling processing of a number of sewing machine head bodies is completed, the operator only needs to place the new drill bit between the multiple clamping blocks 2 and start the motor 3. The motor 3 drives the threaded column 2 to rotate. Under the action of the threaded plate 2, the clamping block 2 quickly clamps the new drill bit. Then, the cylinder 4 is started to smoothly move the new drill bit to a suitable position inside the machine tool. Then, the cylinder 2 is started. The output shaft of the cylinder 2 drives the replacement box to move accurately to the appropriate position. At this time, the motor 2 is started for fine adjustment so that the two sides of the replacement box are respectively placed between the drill bit to be replaced and the drill bit that needs to be replaced. After that, the two symmetrical parts in the replacement box are started. The output shaft of cylinder three drives clamp block one to move, and the new drill bit placed in the replacement box is clamped and fixed with the old drill bit. Then, clamp block two releases the new drill bit, the splint releases the old drill bit, and cylinder two extends, so that the new drill bit is separated from the slide box, and the old drill bit is separated from the fixed box. Motor two is started again to rotate 180°, and the new drill bit is turned to the old drill bit, and the old drill bit is turned to the new drill bit. Finally, cylinder two is started to shorten, clamp block two clamps the old drill bit, and the splint clamps the new drill bit. The whole process is completed in one go, and the drill bit replacement work is completed quickly. Compared with the traditional manual replacement method, it greatly saves time, improves production efficiency, and greatly reduces the production stagnation caused by manual drill bit replacement due to shutdown, providing a strong guarantee for large-scale sewing machine head production.

[0016] Through the interlocking design among various components, the present invention features a high degree of automation of the entire device, greatly reducing manual operations. From the installation, positioning, and adjustment of the sewing machine head body to the installation, replacement, and drilling of the drill bit, a series of processes can be automatically completed by starting corresponding devices such as motors and cylinders. The operator only needs to place the sewing machine head body to be processed at the designated position in the initial stage and perform simple operations such as placing a new drill bit when necessary, without manually participating in the cumbersome processing process throughout. This not only reduces the errors caused by manual operations but also greatly reduces the labor intensity, improves the safety and stability of the production process, and makes the fine processing production of the sewing machine head more efficient and reliable. The close cooperation between the clamping unit and the moving component can precisely adjust the position and angle of the sewing machine head body, ensuring the accuracy of the drilling position, thereby improving the processing accuracy of the sewing machine head. During actual operation, first place the sewing machine head body to be processed on the second base of the clamping unit, and start the fourth motor in the first chassis. The output shaft of the fourth motor drives the drive shaft to rotate, and the clamping plate on the outer wall of the drive shaft rotates accordingly to initially fix and position the sewing machine head body. Then, start the fifth motor in the second chassis. The fifth motor drives the ball screw to start rotating, and the first slider moves linearly along the track of the fixed block, and the slide plate also moves synchronously. By controlling the forward and reverse rotation of the fifth motor, the slide plate can be moved back and forth in the horizontal direction to initially adjust the position of the second base in the machine tool. When it is necessary to finely adjust the angle of the second base or further precisely position it, the fifth cylinder fixedly connected to one side of the slide plate comes into play. Start the fifth cylinder, and its output shaft pushes one of the second sliders connected to it to slide in the chute. Due to the mutual connection among the second sliders and the constraint relationship with the slide plate, the movement of a single second slider will drive the entire group of second sliders and the second base connected to the second slider to change in angle and position, thereby precisely adjusting the front and rear positions of the sewing machine head body. When it is necessary to finely adjust the second base in the vertical direction to ensure that the sewing machine head body is in the best drilling position, by controlling the telescopic length of the electric telescopic column, the precise movement of the second base in the vertical direction can be achieved. At the same time, multiple telescopic columns installed between the second slider and the base not only play a role in assisting in supporting the second base but also provide a certain amount of buffering and stability during the position and angle adjustment of the second base, preventing shaking or instability caused by excessive adjustment actions and ensuring the smoothness and precision of the entire adjustment process, ultimately guaranteeing the high precision of the drilling position and improving the overall processing quality of the sewing machine head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1It is a schematic diagram of the overall structure of the device of the present invention; Figure 2 It is a schematic rear view structure diagram of the device of the present invention; Figure 3 It is a schematic diagram of the internal structure of the machine tool of the present invention; Figure 4 It is a schematic diagram of the internal structure of the sliding box of the present invention; Figure 5 It is a schematic diagram of a partial structure of the disassembly and assembly component of the present invention; Figure 6 It is a schematic diagram of a partial structure of the fixing mechanism of the present invention; Figure 7 It is a schematic rear view structure diagram of the fixing mechanism of the present invention; Figure 8 It is a schematic diagram of the connection structure of the first rotating plate, the second rotating plate and the sixth motor of the present invention; Figure 9 It is a schematic diagram of the structure of the clamping unit of the present invention; Figure 10 It is a schematic diagram of the structure of the telescopic column and the electric telescopic column of the present invention.

[0018] In the figure: 1. Machine tool; 2. Warehouse door; 3. First cylinder; 4. Fixed box; 5. Drill bit; 6. Bearing; 7. Sewing machine head body; 8. Circular block; 9. Tooth ring; 10. Tooth groove; 11. First gear; 12. First threaded column; 13. First threaded plate; 14. Connecting column; 15. Clamping plate; 16. First rotating plate; 17. Second rotating plate; 18. Sixth motor; 19. Second gear; 20. First motor; 21. First support column; 22. Second cylinder; 23. Second motor; 24. Replacement box; 25. Third cylinder; 26. First clamping block; 27. Fourth cylinder; 28. Sliding box; 29. Third motor; 30. Second threaded plate; 31. Second clamping block; 32. Second base; 33. First chassis; 34. Driving shaft; 35. Clamping plate; 36. Second chassis; 37. Ball screw; 38. Fixed block; 39. Slide plate; 40. Fifth cylinder; 41. Chute; 42. Second slider; 43. Electric telescopic column; 44. Telescopic column. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a drilling device for fine machining of a sewing machine head, including Machine tool 1, with two symmetrically distributed storage doors 2 sliding on the front side of the machine tool 1; Drilling unit, which is arranged inside the machine tool 1 to drill the sewing machine head body 7. The drilling unit includes cylinder 1 3, fixed box 4, drill bit 5, bearing 6 and disassembly and assembly components. Cylinder 1 3 is fixedly installed on the upper side wall of the machine tool 1, and the lower output shaft of cylinder 1 3 is fixedly connected with the fixed box 4. The fixed box 4 is slidably connected with the inner wall of the machine tool 1. A bearing 6 is arranged on the front side of the fixed box 4. One end of the drill bit 5 passes through the bearing 6 and is installed in the fixed box 4. The disassembly and assembly components include a fixing mechanism for installing the sewing machine head body 7 and a replacement mechanism for replacing the sewing machine head body 7. The fixing mechanism is arranged in the fixed box 4, and the replacement mechanism is arranged inside the machine tool 1; And a clamping unit, which is arranged inside the lower side of the machine tool 1 and is used for fixedly installing the sewing machine head body 7.

[0021] The fixing mechanism includes a circular block 8, a gear ring 9, a tooth groove 10, a first gear 11, a threaded column 12, a threaded plate 13, a connecting column 14, a clamping plate 15 and a driving member. A tooth groove 10 is formed on the wall of the circular block 8. The tooth groove 10 is meshed with the first gear 11. The inner wall of the first gear 11 is fixedly connected with the threaded column 12. A plurality of threaded columns 12 are threadedly connected with the threaded plate 13. One end of the threaded plate 13 is slidably connected with the inner wall of the fixed box 4. One end of the threaded plate 13 close to the sewing machine head body 7 is fixedly connected with the connecting column 14. The end of the connecting column 14 away from the threaded plate 13 is fixedly connected with the clamping plate 15. A gear ring 9 is fixedly connected to the wall of the circular block 8, and the gear ring 9 is driven to rotate by the driving member.

[0022] A rotating plate 16 is slidably connected to the inner walls of a plurality of clamping plates 15. One end of the rotating plate 16 is slidably connected with a rotating plate 17. One end of the rotating plate 17 is fixedly connected with the output shaft of a sixth motor 18. The sixth motor 18 is installed in the fixed box 4.

[0023] The driving member includes a second gear 19 meshed with the gear ring 9 and a first motor 20 installed inside the fixed box 4. The output shaft of the first motor 20 is fixedly connected with the second gear 19. A groove is provided at one end of the circular block 8. A plurality of equally spaced support columns 21 are slidably arranged in the groove. The end of the support column 21 away from the groove is fixedly connected with the inner wall of the fixed box 4. One end of the threaded column 12 is rotatably connected with a support column 2, and the end of the support column 2 away from the threaded column 12 is fixedly connected with the inner wall of the fixed box 4.

[0024] The replacement mechanism includes a second cylinder 22 whose output shaft sidewall is movably connected to the wall body of the machine tool 1, a second motor 23 fixedly connected to the output shaft of the second cylinder 22, a replacement box 24 fixedly connected to the output shaft of the second motor 23, a reinforcement member provided in the replacement box 24, and a loading member provided on one side of the machine tool 1 for transporting the replacement sewing machine head body 7. The reinforcement member includes two symmetrically distributed third cylinders 25 installed in the replacement box 24 and a first clamping block 26 fixedly connected to the output shaft of one end of the third cylinder 25.

[0025] The loading member includes a fourth cylinder 27, a sliding box 28, a third motor 29, a second threaded column, a second threaded plate 30, and a second clamping block 31. The sliding box 28 is movably connected to the wall body of the machine tool 1. The output shaft of the fourth cylinder 27 is connected to one side of the sliding box 28. A third motor 29 is installed on the inner wall of the sliding box 28. The output shafts on both sides of the third motor 29 are fixedly connected to the second threaded column. The second threaded column is rotatably connected to the inner wall of the sliding box 28. The second threaded column is threadedly connected to the second threaded plate 30. One end of the second threaded plate 30 is fixedly connected to the second clamping block 31. One end wall body of the second threaded plate 30 is slidably connected to the inner wall of the sliding box 28. One end of the fourth cylinder 27 is installed on the first base. The lower end of the sliding box 28 is slidably connected to the first base. One end of the second cylinder 22 is fixedly connected to the side wall of the base.

[0026] When the drilling of several sewing machine head bodies 7 is completed and a new drill bit 5 needs to be replaced, first place the new drill bit 5 between multiple second clamping blocks 31, start the third motor 29 to drive the second threaded column to rotate, and then drive the second clamping block 31 to clamp the new drill bit 5 under the action of the second threaded plate 30. Then start the fourth cylinder 27 to move the new drill bit 5 to a suitable position inside the machine tool 1. After that, start the second cylinder 22. The output shaft of the second cylinder 22 drives the replacement box 24 to move to a suitable position. At this time, start the second motor 23 for adjustment so that both sides of the replacement box 24 are respectively placed between the replacement drill bit 5 and the drill bit 5 to be replaced. Then start the two symmetrically distributed third cylinders 25 in the replacement box 24. The output shafts of the third cylinders 25 drive the first clamping blocks 26 to move, and clamp and fix the new drill bit 5 and the old drill bit 5 placed in the replacement box 24. Then the second clamping block 31 releases the new drill bit 5 and the clamping plate 15 releases the old drill bit 5. At this time, extend the second cylinder 22 so that the new drill bit 5 disengages from the sliding box 28 and the old drill bit 5 disengages from the fixed box 4. Then start the second motor 23 to rotate 180°. Rotate the new drill bit 5 to the position of the old drill bit 5 and the old drill bit 5 to the position of the new drill bit 5. Shorten the second cylinder 22, and then clamp the old drill bit 5 with the second clamping block 31 and clamp the new drill bit 5 with the clamping plate 15 to complete the replacement work of the drill bit 5.

[0027] The clamping unit includes a second base 32, a first chassis 33, a drive shaft 34, a clamping plate 35 and a moving component. The moving component is arranged at the lower end of the second base 32. Two first chassis 33 are fixedly connected to the upper end of the second base 32. A fourth motor is installed in each of the first chassis 33. The output shaft of the fourth motor at the upper end is fixedly connected to the drive shaft 34, and the clamping plate 35 is fixedly connected to the outer wall of the drive shaft 34.

[0028] The moving component includes a second chassis 36, a fifth motor, a ball screw 37, a fixed block 38, a first slider, a slide plate 39, a fifth cylinder 40, a chute 41, a second slider 42 and an electric telescopic column 43. A second chassis 36 is installed in the machine tool 1. A fifth motor is installed in the second chassis 36. The output shaft of the fifth motor is fixedly connected to the ball screw 37. The fixed block 38 is fixedly installed at the lower end of the machine tool 1. The first slider is slidably connected in the fixed block 38. The slider is threadedly connected to the ball screw 37. The upper end of the first slider is fixedly connected to the slide plate 39. A fifth cylinder 40 is fixedly connected to one side of the slide plate 39. A number of equally spaced chutes 41 are also formed in the slide plate 39. The second slider 42 is slidably arranged in three of the chutes 41. One of the second sliders 42 is fixedly connected to the output shaft of the fifth cylinder 40. Two electric telescopic columns 43 are fixedly connected to one of the second sliders 42.

[0029] The output shaft of the upper end of the electric telescopic column 43 is fixedly connected to the lower end of the second base 32. A plurality of telescopic columns 44 are also installed between the second slider 42 and the second base 32.

[0030] A method for a drilling device used in the finish machining of a sewing machine head is as follows: S1. Install the sewing machine head body 7. Place the sewing machine head body 7 to be machined on the clamping plate 35 of the clamping unit. Start the fourth motor in the first chassis 33. The output shaft of the fourth motor drives the drive shaft 34 to rotate, and then the clamping plate 35 on the outer wall of the drive shaft 34 rotates to perform preliminary fixing and positioning on the sewing machine head body 7. S2. Install the drill bit 5. According to the size specification of the drill bit 5, start the first motor 20 in the fixed box 4. The output shaft of the first motor 20 drives the second gear 19 to rotate. The second gear 19 meshes with the gear ring 9, thereby driving the circular block 8 to rotate. The tooth groove 10 on the wall of the circular block 8 meshes with the first gear 11, causing the first gear 11 to rotate. The threaded column one 12 fixedly connected to the inner wall of the first gear 11 rotates accordingly. Since the threaded column one 12 is threadedly connected to the threaded plate one 13, and one end of the threaded plate one 13 is slidably connected to the inner wall of the fixed box 4, the threaded plate one 13 slides along the inner wall of the fixed box 4 under the drive of the threaded column one 12, and the connecting column 14 and the clamping plate 15 move accordingly to precisely clamp and fix the drill bit 5. S3. Adjust the position of the sewing machine head body 7. Start the fifth motor in the second chassis 36 to drive the ball screw 37 to rotate. Then, the first slider will move linearly along the track of the fixed block 38, and the slide plate 39 will move synchronously. By controlling the forward and reverse rotation of the fifth motor, the slide plate 39 can be moved back and forth in the horizontal direction, thereby initially adjusting the position of the second base 32 in the machine tool 1. When it is necessary to finely adjust the angle of the second base 32 or further accurately position it, the fifth cylinder 40 fixedly connected to one side of the slide plate 39 will start to function. Then, start the fifth cylinder 40, and its output shaft pushes one of the second sliders 42 connected to it to slide in the chute 41. Due to the mutual connection between the second sliders 42 and the constraint relationship with the slide plate 39, the movement of this single second slider 42 will drive the entire group of second sliders 42 and the second base 32 connected to the second sliders 42 to change in angle and position, thereby adjusting the front and rear position of the sewing machine head body 7. When it is necessary to finely adjust the second base 32 in the vertical direction to ensure that the sewing machine head body 7 is in the best drilling position, by controlling the telescopic length of the electric telescopic column 43, the precise movement of the second base 32 in the vertical direction can be achieved. At the same time, the multiple telescopic columns 44 installed between the second sliders 42 and the base not only play a role in assisting in supporting the second base 32, but also provide a certain amount of buffering and stability during the adjustment of the position and angle of the second base 32, preventing shaking or instability caused by excessive adjustment actions and ensuring the smoothness and precision of the entire adjustment process; S4. Drill the sewing machine head body 7. After fixing the sewing machine head body 7, start the first cylinder 3 on the upper side wall of the machine tool 1. The lower output shaft of the first cylinder 3 drives the fixed box 4 to move downward. Then, start the sixth motor 18 to drive the second rotating plate 17 to rotate, and then drive the first rotating plate 16 to rotate, thereby driving the drill bit 5 to rotate to drill the sewing machine head body 7.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drilling device for finishing a sewing machine head, characterized in that: include A machine tool (1), wherein two symmetrically distributed compartment doors (2) are slidingly provided on the front side of the machine tool (1); A drilling unit, the drilling unit being arranged inside a machine tool (1) to perform drilling processing on a sewing machine head body (7), the drilling unit comprising a cylinder (3), a fixing box (4), a drill bit (5), a bearing (6) and a disassembly assembly component, the cylinder (3) being fixedly mounted on the upper side wall of the machine tool (1), the lower end output shaft of the cylinder (3) being fixedly connected to the fixing box (4), the fixing box (4) being slidably connected to the inner wall of the machine tool (1), the front side of the fixing box (4) being provided with a bearing (6), one end of the drill bit (5) passing through the bearing (6) and being mounted in the fixing box (4), the disassembly assembly comprising a fixing mechanism for mounting the sewing machine head body (7) and a replacement mechanism for replacing the sewing machine head body (7), the fixing mechanism being arranged in the fixing box (4), and the replacement mechanism being arranged in the machine tool (1); and a clamping unit, wherein the clamping unit is arranged inside the lower side of the machine tool (1) and is used for fixing and installing the sewing machine head body (7).

2. A drilling device for finishing a sewing machine head according to claim 1, characterized in that: The fixing mechanism comprises a circular block (8), a gear ring (9), a tooth groove (10), a gear one (11), a threaded column one (12), a threaded plate one (13), a connecting column (14), a clamping plate (15) and a driving member. The wall of the circular block (8) is provided with a tooth groove (10). The tooth groove (10) is meshingly connected with a plurality of gears one (11). The inner walls of the plurality of gears one (11) are all fixedly connected with a threaded column one (12). The threaded column one (12) is threadedly connected with a threaded plate one (13). One end of the threaded plate one (13) is slidably connected to the inner wall of the fixing box (4). The end of the threaded plate one (13) close to the sewing machine head body (7) is fixedly connected with the connecting column (14). The end of the connecting column (14) away from the threaded plate one (13) is fixedly connected with the clamping plate (15). The wall of the circular block (8) is fixedly connected with a gear ring (9). The gear ring (9) is driven to rotate by the driving member.

3. A drilling device for finishing a sewing machine head according to claim 2, characterized in that: A rotating plate 1 (16) is slidably connected to the inner wall of the clamping plate (15), one end of the rotating plate 1 (16) is slidably connected to a rotating plate 2 (17), one end of the rotating plate 2 (17) is fixedly connected to an output shaft of a motor 6 (18), and the motor 6 (18) is installed in a fixed box (4).

4. A drilling device for finishing a sewing machine head according to claim 2, characterized in that: The driving member comprises a second gear (19) meshingly connected with the gear ring (9) and a motor (20) installed inside the fixed box (4); the output shaft of the motor (20) is fixedly connected to the second gear (19); one end of the circular block (8) is provided with a groove; a plurality of support columns (21) equidistantly distributed are slidably arranged in the groove; an end of the support column (21) away from the groove is fixedly connected to the inner wall of the fixed box (4); one end of the threaded column (12) is rotatably connected to the second support column; an end of the support column (2) away from the threaded column (12) is fixedly connected to the inner wall of the fixed box (4).

5. A drilling device for finishing a sewing machine head according to claim 1, characterized in that: The replacement mechanism comprises a second cylinder (22) whose output shaft side wall is movably connected to the wall of the machine tool (1), a second motor (23) fixedly connected to the output shaft of the second cylinder (22), a replacement box (24) fixedly connected to the output shaft of the second motor (23), a reinforcement component arranged in the replacement box (24), and a loading component arranged on one side of the machine tool (1) for transporting a replacement sewing machine head body (7), wherein the reinforcement component comprises two symmetrically distributed cylinders (25) installed in the replacement box (24) and a clamping block (26) fixedly connected to the output shaft at one end of the cylinder (25).

6. A drilling device for finishing a sewing machine head according to claim 5, characterized in that: The feeding component comprises a cylinder four (27), a slide box (28), a motor three (29), a threaded column two, a threaded plate two (30) and a clamping block two (31), the slide box (28) being movably connected to the wall of the machine tool (1), one side of the slide box (28) being connected to the output shaft of the cylinder four (27), the inner wall of the slide box (28) being mounted with the motor three (29), the output shafts on both sides of the motor three (29) being fixedly connected to the threaded column two, the threaded column two being rotatably connected to the inner wall of the slide box (28), the threaded column two being threadedly connected to the threaded plate two (30), one end of the threaded plate two (30) being fixedly connected to the clamping block two (31), one end wall of the threaded plate two (30) being slidably connected to the inner wall of the slide box (28), one end of the cylinder four (27) being mounted on the base one, the lower end of the slide box (28) being slidably connected to the base one, and one end of the cylinder four (27) being fixedly connected to a side wall of the base.

7. A drilling device for finishing a sewing machine head according to claim 1, characterized in that: The clamping unit comprises a base two (32), a chassis one (33), a driving shaft (34), a clamping plate (35) and a moving component, wherein the moving component is arranged at the lower end of the base two (32), the upper end of the base two (32) is fixedly connected to two chassis one (33), each chassis one (33) is equipped with a motor four, the upper end output shaft of the motor four is fixedly connected to the driving shaft (34), and the outer wall of the driving shaft (34) is fixedly connected to the clamping plate (35).

8. A drilling device for finishing a sewing machine head according to claim 7, characterized in that: The moving assembly comprises a second chassis (36), a fifth motor, a ball screw (37), a fixed block (38), a first slide block, a slide plate (39), a fifth cylinder (40), a slide groove (41), a second slide block (42) and an electric telescopic column (43). The second chassis (36) is installed in the machine tool (1). The fifth motor is installed in the second chassis (36). The output shaft of the fifth motor is fixedly connected to the ball screw (37). The lower end of the machine tool (1) is fixedly installed with a fixed block (38). The fixed block (38) is slidably connected to the slide Block 1, the slider is threadedly connected to the ball screw (37), the upper end of the slider is fixedly connected to a slide plate (39), one side of the slide plate (39) is fixedly connected to a cylinder 5 (40), the slide plate (39) is also provided with a plurality of equally spaced slide grooves (41), three of which are slidably provided with sliders 2 (42), one of which is fixedly connected to the output shaft of the cylinder 5 (40), and one of which is fixedly connected to two electric telescopic columns (43).

9. A drilling device for finishing a sewing machine head according to claim 8, characterized in that: The output shaft at the upper end of the electric telescopic column (43) is fixedly connected to the lower end of the second base (32), and a plurality of telescopic columns (44) are also installed between the second slide block (42) and the second base (32).

10. A method for a sewing machine head finishing drilling device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1, installing the sewing machine head body (7), placing the sewing machine head body (7) to be processed on the clamping plate (35) of the clamping unit, starting the motor four in the chassis one (33), the output shaft of the motor four drives the driving shaft (34) to rotate, and then the clamping plate (35) on the outer wall of the driving shaft (34) rotates, thereby preliminarily fixing and positioning the sewing machine head body (7); S2, installing the drill bit (5), starting the motor 1 (20) in the fixed box (4) according to the size specifications of the drill bit (5), the output shaft of the motor 1 (20) drives the gear 2 (19) to rotate, the gear 2 (19) meshes with the gear ring (9), thereby driving the circular block (8) to rotate, the tooth groove (10) on the wall of the circular block (8) meshes with the gear 1 (11), so that the gear 1 (11) rotates, and the threaded column 1 (12) fixedly connected to the inner wall of the gear 1 (11) rotates accordingly. Since the threaded column 1 (12) is threadedly connected to the threaded plate 1 (13), and one end of the threaded plate 1 (13) is slidably connected to the inner wall of the fixed box (4), the threaded plate 1 (13) slides along the inner wall of the fixed box (4) under the drive of the threaded column 1 (12), and the connecting column (14) and the clamping plate (15) move accordingly, so as to accurately clamp and fix the drill bit (5); S3, the position of the sewing machine head body (7) is adjusted, the motor five in the chassis two (36) is started, the ball screw (37) is driven to start rotating, the slider one moves linearly along the track of the fixed block (38), and the slide plate (39) also moves synchronously, and then the cylinder five (40) is started, and its output shaft pushes one of the sliders two (42) connected to it to slide in the slide groove (41), thereby adjusting the front and rear position of the sewing machine head body (7), and by controlling the telescopic length of the electric telescopic column (43), the base two (32) is accurately moved in the vertical direction; S4, drilling a hole in the sewing machine head body (7), after fixing the sewing machine head body (7), start the cylinder 1 (3) on the upper side wall of the machine tool (1), the lower end output shaft of the cylinder 1 (3) drives the fixed box (4) to move downward, and then start the motor 6 (18), drive the rotating plate 2 (17) to rotate, and then drive the rotating plate 1 (16) to rotate, thereby driving the drill bit (5) to rotate to perform drilling processing on the sewing machine head body (7).

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