A small numerical control drilling and milling machine with overturning positioning

Abstract

The application relates to the technical field of numerical control machine tools, and discloses a small numerical control drilling and milling machine with overturning positioning, which comprises a bottom plate, a lifting machining device is installed in the bottom plate, the lifting machining device comprises a disc, a track groove is formed in the disc, a sliding rod is slidably connected in the track groove, a machining equipment is installed at the other end of the sliding rod, and a workpiece overturning device is arranged at the center of the disc. The workpiece overturning device comprises a defective gear, the defective gear is meshingly connected with a rotating gear, a connecting shaft is fixedly connected to the center of one side of the rotating gear, a workpiece clamp is connected to the other end of the connecting shaft, the scheme has the beneficial effect that the workpiece is overturned while the machining equipment is moved up and down, the problem that the numerical control drilling and milling machine in the prior art needs to drive the machining equipment to move upwards and then drive the clamp to overturn through another driving equipment or manually, the overturning mode is relatively complicated, and the production efficiency is affected is solved.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, specifically to a small CNC drilling and milling machine with flip positioning. Background Technology

[0002] A small CNC milling and drilling machine is an automated machining equipment controlled by electronic digital signals. It can perform various machining processes such as milling, drilling, and tapping on materials such as ordinary steel, copper, aluminum, and non-metals. This equipment can realize complex machining processes such as arcs, curved surfaces, and multi-faceted four-axis machining, and is suitable for mass production, single-machine production, and assembly line production.

[0003] The flip-positioning function allows the workpiece to be flipped during machining, enabling the processing of different surfaces. This is particularly important when handling complex parts requiring multi-faceted machining, improving processing efficiency and flexibility. Flip-positioning devices typically possess high precision and stability, ensuring the workpiece maintains accurate positioning after flipping, thus reducing errors caused by repositioning. For workpieces requiring multiple flips, the flip-positioning function significantly reduces changeover time, as the workpiece does not need to be removed from the machine tool and reclamped, thereby improving production efficiency. The flip-positioning function allows small CNC milling machines to adapt to a wider range of workpiece machining needs, enabling precise machining of complex shapes such as planes, inclined planes, and curved surfaces through flip-positioning.

[0004] However, existing CNC drilling and milling machines require the machining equipment to be moved upwards first, and then the fixture is flipped by another drive or manually driven when performing flipping machining on multiple sides of a rectangular workpiece. This flipping method is cumbersome and affects production efficiency. Therefore, it does not meet the current needs. To address this, we propose a small CNC drilling and milling machine with flipping positioning. Summary of the Invention

[0005] This invention provides a small CNC drilling and milling machine with flip positioning, which has the beneficial effect of flipping the workpiece while the processing equipment moves up and down. It solves the problem mentioned in the background art that in the prior art, CNC drilling and milling machines need to first drive the processing equipment to move upward, and then flip the workpiece by another drive device or manually drive the fixture. This flipping method is cumbersome and affects production efficiency.

[0006] The present invention provides the following technical solution: a small CNC drilling and milling machine with flip positioning, comprising a base plate, wherein a lifting processing device is installed in the base plate, the lifting processing device includes a drive motor fixedly connected to one side of the base plate, a disk fixedly connected to the output end of the drive motor, a track groove is formed in the disk, a slide rod is slidably connected in the track groove, a mounting rod is fixedly connected to the other end of the slide rod, a processing device is installed at the bottom of the mounting rod, and a workpiece flipping device is provided at the center of the disk.

[0007] The workpiece flipping device includes a central shaft fixedly connected to the center of the disc. A broken gear is fixedly connected to the output end of the central shaft. The broken gear meshes with a rotating gear. A connecting shaft is fixedly connected to the center of one side of the rotating gear. The connecting shaft is rotatably connected to the upper end of a support frame. The support frame is fixedly connected to the bottom upper surface of the base plate. The other end of the connecting shaft is connected to a workpiece clamp via an adjustment component. The same workpiece clamp is installed on the side of the base plate opposite to the lifting processing device. The broken gear has four sets of tooth circumferential arrays.

[0008] As an alternative solution for a small CNC drilling and milling machine with flip positioning as described in this invention, wherein: the other end of the mounting rod away from the slide rod is fixedly connected to a limiting rod, the other end of the limiting rod is slidably connected in a lifting groove, the lifting groove is opened in the base plate, and the bottom of the limiting rod is connected to the lifting groove through a lifting spring.

[0009] As an alternative solution for a small CNC drilling and milling machine with flip positioning according to the present invention, wherein: the adjustment component is used to adjust the distance between the two workpiece fixtures, the adjustment component includes a telescopic groove formed on one side of the connecting shaft, a telescopic rod is slidably connected in the telescopic groove, and the other end of the telescopic rod is provided with the workpiece fixture, the cross-section of the telescopic groove and the telescopic rod is rectangular.

[0010] As an alternative solution for a small CNC drilling and milling machine with flip positioning as described in this invention, wherein: one end of the telescopic rod is provided with a circular groove, the circular groove is rotatably connected to a rotating shaft via a torsion spring, the other end of the rotating shaft is fixedly connected to one side of the workpiece fixture, the side wall of the connecting shaft is provided with a fixing groove, the fixing groove communicates with the telescopic groove, and a bolt is installed in the fixing groove.

[0011] As an alternative solution for a small CNC drilling and milling machine with flip positioning as described in this invention, the support frame is provided with a fixing component, the fixing component includes a slide groove opened in the support frame, a sliding plug rod and a limiting plate are slidably connected in the slide groove, the limiting plate is fixedly connected to the side wall of the sliding plug rod, a wedge is fixedly connected to the top of the sliding plug rod, the other end of the sliding plug rod is inserted into a fixed plug groove, the fixed plug groove is opened in the side wall of the connecting shaft, and there are four fixed plug grooves in a circumferential array.

[0012] As an alternative solution for a small CNC drilling and milling machine with flip positioning as described in this invention, the wedge block is abutted by a driving arc plate, the driving arc plate is fixedly connected to the surface of the defective gear, the limiting plate is connected to the slide groove through a limiting spring, there are four driving arc plates arranged in a circumferential row, and the driving arc plates are set at corresponding positions on the smooth surface of the defective gear.

[0013] As an optional solution for a small CNC drilling and milling machine with flip positioning as described in this invention, the bottom of the processing equipment is provided with a telescopic table device. The telescopic table device includes a bottom shell fixedly connected to the bottom upper surface of the base plate. A telescopic inner rod is slidably connected inside the bottom shell through a telescopic spring. The other end of the telescopic inner rod is fixedly connected to a worktable.

[0014] As an alternative solution for a small CNC drilling and milling machine with flip positioning as described in this invention, the extension and retraction of the worktable is driven by a drive assembly. The drive assembly includes a drive gear fixedly connected to the side wall of the connecting shaft. A drive rod is provided on the side wall of the drive gear. Several sets of unidirectional tooth block components are provided inside the drive rod. A connecting block is fixedly connected to one side of the drive rod. The connecting block is fixedly connected to one side of the worktable.

[0015] As an alternative solution for a small CNC drilling and milling machine with flip positioning as described in this invention, the unidirectional tooth block component includes a unidirectional groove formed in the drive rod, a fixed shaft is fixedly connected in the unidirectional groove, a drive tooth block is rotatably connected to the side wall of the fixed shaft, and a semi-circular gear is fixedly connected to the side wall of the drive tooth block.

[0016] As an optional solution for a small CNC drilling and milling machine with flip positioning according to the present invention, wherein: an unlocking groove is provided in the drive rod, an unlocking rod is slidably connected in the unlocking groove, a hydraulic component is provided at the other end of the unlocking groove, the hydraulic component includes a hydraulic chamber fixedly connected above the support frame, a hydraulic plate is slidably connected in the hydraulic chamber, the hydraulic plate is connected to the hydraulic chamber through a return spring, the hydraulic chamber is connected to the unlocking groove through a hose, a drive block is provided on one side of the hydraulic plate, the drive block is fixedly connected to one side of the wedge block, and the side wall of the unlocking rod is provided with the same number of tooth block groups as the one-way tooth block component, the tooth block groups are meshed with the semi-circular gear.

[0017] The present invention has the following beneficial effects:

[0018] 1. This small CNC drilling and milling machine with flip positioning utilizes the track grooves on the disc and the sliding of the slide rod within the track grooves. As the disc rotates, it drives the mounting rod, which is fixedly connected to the slide rod, to slide up and down according to the changes in the track grooves. This synchronously drives the machining equipment to rise and fall, thus enabling the machining of the workpiece. When the mounting rod slides down from a high position to a low position, the machining equipment needs to process the workpiece. At this time, the smooth surface of the rotating gear and the missing gear are in contact, so the rotating gear does not rotate, ensuring smooth machining of the workpiece. When the mounting rod slides up from a low position, the teeth of the rotating gear and the missing gear begin to mesh. Therefore, when the mounting rod slides upward, the rotating gear begins to rotate, driving the workpiece fixture to rotate, thus flipping the workpiece. Through the above operation, the workpiece can be flipped effectively during the rising time of the machining equipment, and the workpiece is prevented from rotating during the descending process, effectively shortening the processing time and further improving production efficiency.

[0019] 2. This small CNC drilling and milling machine with flipping positioning, through the design of the fixed component, when the defective gear rotates, the drive arc plate located on the surface of the defective gear abuts against the wedge block, thereby driving the sliding plug rod to slide downwards and insert into the fixed plug groove. Through the insertion of the sliding plug rod, the connecting shaft cannot rotate. Since the drive arc plate is located on the smooth surface of the defective gear, the drive arc plate drives the sliding plug rod during the descent of the processing equipment. Through this design, the connecting shaft can be restricted when the processing equipment is processing the workpiece, preventing the workpiece from rotating due to unexpected factors during the processing, which would affect the processing. This effectively improves the stability of the workpiece flipping device.

[0020] 3. This small CNC drilling and milling machine with flipping positioning can drive the worktable to its lowest position when the workpiece rotates, preventing the workpiece from getting stuck during rotation. When the connecting shaft rotates, the drive gear fixedly connected to the side wall of the connecting shaft rotates synchronously, thereby driving the drive rod with the one-way tooth block component to slide downward. Since the drive rod is fixedly connected to the worktable through the connecting block, the worktable slides downward synchronously until it reaches its lowest position. The one-way design of the one-way tooth block component prevents the connecting shaft from rotating in the opposite direction when the worktable is reset, ensuring the stable operation of the workpiece flipping device. Through the design of the one-way groove and the drive tooth block, when the drive gear rotates clockwise as shown in the figure, the drive gear meshes with the drive tooth block, thereby driving the drive rod and the worktable fixedly connected to it to slide downward. This design allows the worktable to slide downward synchronously when the workpiece is flipped, thus ensuring the stability of the workpiece flipping. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0024] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0026] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point B.

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C.

[0028] Figure 8 This is a schematic diagram of the connection between the sliding plug rod and the fixed plug groove of the present invention.

[0029] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point D.

[0030] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point E in the middle.

[0031] Figure 11 This is a schematic diagram of the hydraulic component structure of the present invention.

[0032] In the diagram: 1. Base plate; 2. Lifting and processing device; 21. Drive motor; 22. Disc; 23. Track groove; 24. Slide rod; 25. Mounting rod; 26. Processing equipment; 27. Limiting rod; 28. Lifting groove; 29. ​​Lifting spring; 3. Workpiece flipping device; 31. Central shaft; 32. Incomplete gear; 33. Rotating gear; 34. Connecting shaft; 35. Support frame; 36. Workpiece clamp; 4. Adjustment assembly; 41. Telescopic groove; 42. Telescopic rod; 43. Circular groove; 44. Rotating shaft; 45. Torsion spring; 46. Fixing groove; 47. Bolt; 5. Fixing assembly; 51. Slide groove; 52. Sliding insertion rod; 53. Wedge block 54. Drive arc plate; 55. Limiting plate; 56. Limiting spring; 57. Fixed insertion slot; 6. Telescopic table device; 61. Bottom shell; 62. Telescopic inner rod; 63. Telescopic spring; 64. Worktable; 7. Drive assembly; 71. Drive gear; 72. Drive rod; 73. One-way tooth block component; 731. One-way groove; 732. Fixed shaft; 733. Drive tooth block; 734. Semi-circular gear; 74. Connecting block; 75. Unlocking slide; 76. Unlocking rod; 77. Tooth block assembly; 78. Hydraulic assembly; 781. Hydraulic chamber; 782. Hydraulic plate; 783. Hoses; 784. Return spring; 79. Drive block. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1 aims to address the inefficiency of existing CNC drilling and milling machines when machining multiple surfaces of the same workpiece. Please refer to [link to example]. Figures 1 to 11 A small CNC drilling and milling machine with flip positioning includes a base plate 1. A lifting processing device 2 is installed inside the base plate 1. The lifting processing device 2 includes a drive motor 21 fixedly connected to one side of the base plate 1. A disc 22 is fixedly connected to the output end of the drive motor 21. A track groove 23 is opened in the disc 22. A slide rod 24 is slidably connected in the track groove 23. A mounting rod 25 is fixedly connected to the other end of the slide rod 24. A processing device 26 is installed at the bottom of the mounting rod 25. A workpiece flipping device 3 is set at the center of the disc 22.

[0035] A limiting rod 27 is fixedly connected to the other end of the mounting rod 25 away from the sliding rod 24. The other end of the limiting rod 27 is slidably connected in the lifting groove 28, which is opened in the base plate 1. The bottom of the limiting rod 27 is connected to the lifting groove 28 through the lifting spring 29.

[0036] The base plate 1 provides support and mounting position for the entire device. The drive motor 21 drives the disc 22 to rotate. Through the opening of the track groove 23 on the disc 22 and the sliding of the slide rod 24 in the track groove 23, the disc 22 can drive the mounting rod 25, which is fixedly connected to the slide rod 24, to slide up and down according to the change of the track groove 23. This synchronously drives the processing equipment 26 to rise and fall, thereby realizing the processing of the workpiece. The design of the limiting rod 27 and the lifting groove 28 effectively ensures that the mounting rod 25 can only move in the vertical direction, ensuring the stability of the processing equipment 26 during processing. The design of the lifting spring 29 provides support for the sliding of the limiting rod 27 in the lifting groove 28, and can also quickly help the limiting rod 27 slide upward (the processing method and working principle of the processing equipment 26 are existing technologies, which will not be described in detail in this solution).

[0037] The workpiece flipping device 3 includes a central shaft 31 fixedly connected to the center of the disc 22. A broken gear 32 is fixedly connected to the output end of the central shaft 31. A rotating gear 33 is meshed with the broken gear 32. A connecting shaft 34 is fixedly connected to the center of one side of the rotating gear 33. The connecting shaft 34 is rotatably connected to the upper end of the support frame 35. The support frame 35 is fixedly connected to the bottom upper surface of the base plate 1. The other end of the connecting shaft 34 is connected to a workpiece clamp 36 through an adjusting component 4. The same workpiece clamp 36 is installed on the side of the base plate 1 opposite to the lifting processing device 2.

[0038] When the disc 22 drives the processing equipment 26 to move up and down, the central shaft 31 located at the center of the disc 22 and the defective gear 32 rotate synchronously. Due to the defective design of the defective gear 32 and the height difference design of the track groove 23 (see reference...), Figure 3 This design allows the workpiece to rotate 90 degrees while the mounting rod 25 slides upward, and the workpiece will not flip while the mounting rod 25 slides downward. By utilizing the time the processing equipment 26 rises, the workpiece can be flipped, which can effectively shorten the processing time and further improve production efficiency.

[0039] Since the workpiece clamp 36 is connected to the rotary gear 33, its rotation is controlled by the rotary gear 33. When the mounting rod 25 slides down from a high position to a low position, the processing equipment 26 needs to process the workpiece. At this time, the rotary gear 33 contacts the smooth surface of the broken gear 32, so the rotary gear 33 is not driven to rotate, ensuring that the processing equipment 26 can process the workpiece smoothly. When the mounting rod 25 slides up from a low position, the teeth of the rotary gear 33 and the broken gear 32 begin to mesh. Therefore, when the mounting rod 25 slides upward, the rotary gear 33 begins to rotate, thereby driving the workpiece clamp. The rotating gear 36 rotates to flip the workpiece. By adjusting the ratio of the number of teeth of the rotating gear 33 and the missing gear 32, each set of teeth of the missing gear 32 can drive the rotating gear 33 to rotate 90 degrees when meshing with the rotating gear 33. Through the above operation, the workpiece can be flipped during the time when the processing equipment 26 rises. During the process of the processing equipment 26 falling, the workpiece will not rotate, which effectively shortens the processing time and further improves the production efficiency. (By changing the ratio of the number of teeth of the rotating gear 33 and the missing gear 32, the angle of rotation required by the workpiece can be adjusted according to the different shapes of the workpiece.)

[0040] The adjustment component 4 is used to adjust the distance between the two workpiece clamps 36. The adjustment component 4 includes a telescopic groove 41 opened on one side of the connecting shaft 34. A telescopic rod 42 is slidably connected in the telescopic groove 41. The other end of the telescopic rod 42 is provided with a workpiece clamp 36.

[0041] One end of the telescopic rod 42 has a circular groove 43, and the circular groove 43 is rotatably connected to the rotating shaft 44 via a torsion spring 45. The other end of the rotating shaft 44 is fixedly connected to one side of the workpiece clamp 36. The side wall of the connecting shaft 34 has a fixing groove 46, which is connected to the telescopic groove 41. A bolt 47 is installed in the fixing groove 46.

[0042] The adjustment component 4 is designed to adjust the distance between the two workpiece clamps 36 for better workpiece clamping. The telescopic rod 42, with its telescopic design, effectively adjusts the distance between the two clamps. After adjustment, rotating the bolt 47 secures the telescopic rod 42 within the connecting shaft 34, ensuring a constant overall length and improving workpiece clamping stability. The rectangular design of the telescopic groove 41 and the telescopic rod 42 ensures that the telescopic rod 42 rotates synchronously with the connecting shaft 34, facilitating normal workpiece flipping. Since the workpiece is typically placed on the surface of the worktable 64... Therefore, when the workpiece is rotating, it may be stuck by the worktable 64 and unable to rotate. The lifting design of the worktable 64 can solve this problem. However, the descent of the worktable 64 takes a certain amount of time. During this time, the workpiece may still be unable to rotate. Therefore, the design of the circular groove 43 and the rotating shaft 44 can provide a buffer during this time to prevent the connecting shaft 34 from being unable to rotate due to the restriction of the worktable 64 on the workpiece. The design of the torsion spring 45 can quickly drive the workpiece clamp 36 and the workpiece clamped by the workpiece clamp 36 to flip after the worktable 64 descends. This design effectively improves the stability of the workpiece flipping device 3.

[0043] Example 2 aims to address the issue that the connecting shaft 34 may rotate during processing when the processing equipment 26 is not restricted. This example is an explanation based on Example 1. For details, please refer to [link to example]. Figures 1 to 11 .

[0044] A fixing component 5 is provided inside the support frame 35. The fixing component 5 includes a sliding groove 51 formed inside the support frame 35. A sliding insertion rod 52 and a limiting plate 55 are slidably connected in the sliding groove 51. The limiting plate 55 is fixedly connected to the side wall of the sliding insertion rod 52. A wedge block 53 is fixedly connected to the top of the sliding insertion rod 52. The other end of the sliding insertion rod 52 is inserted into a fixed insertion groove 57, which is formed on the side wall of the connecting shaft 34.

[0045] The wedge 53 is abutted by the drive arc plate 54, which is fixedly connected to the side wall of the broken gear 32. The limiting plate 55 is connected to the slide groove 51 through the limiting spring 56.

[0046] The fixing component 5 is used to fix the connecting shaft 34 during the descent of the mounting rod 25. This design can effectively prevent the connecting shaft 34 from rotating due to external influences, thus ensuring the stability of the processing equipment 26 in processing the workpiece.

[0047] When the defective gear 32 rotates, the driving arc plate 54 located on the surface of the defective gear 32 abuts against the wedge block 53, thereby driving the sliding insertion rod 52 to slide downwards and insert into the fixed insertion slot 57. Through the insertion of the sliding insertion rod 52, the connecting shaft 34 cannot rotate. Since the driving arc plate 54 is located on the smooth surface of the defective gear 32, the driving arc plate 54 drives the sliding insertion rod 52 during the descent of the processing equipment 26. Through this design, the processing equipment 26 can restrict the connecting shaft 34 when processing the workpiece, preventing the workpiece from rotating due to unexpected factors during processing, which would affect the processing. This effectively improves the stability of the workpiece flipping device 3. The design of the limiting spring 56 allows the sliding insertion rod 52 to slide out of the fixed insertion slot 57 quickly when the driving arc plate 54 stops driving it, so as to ensure that the connecting shaft 34 can be smoothly driven to rotate by the defective gear 32.

[0048] Example 3 aims to address the problem that a fixed worktable 64 may prevent the workpiece from rotating. This example is an explanation based on Example 2. For details, please refer to [link / reference]. Figures 1 to 11 .

[0049] The bottom of the processing equipment 26 is provided with a telescopic table device 6. The telescopic table device 6 includes a bottom shell 61 fixedly connected to the bottom upper surface of the base plate 1. A telescopic inner rod 62 is slidably connected inside the bottom shell 61 through a telescopic spring 63. The other end of the telescopic inner rod 62 is fixedly connected to a worktable 64.

[0050] The extension and retraction of the worktable 64 is driven by the drive assembly 7. The drive assembly 7 includes a drive gear 71 fixedly connected to the side wall of the connecting shaft 34. A drive rod 72 is provided on the side wall of the drive gear 71. Several sets of one-way tooth block components 73 are provided inside the drive rod 72. A connecting block 74 is fixedly connected to one side of the drive rod 72. The connecting block 74 is fixedly connected to one side of the worktable 64.

[0051] The one-way gear block component 73 includes a one-way groove 731 opened in the drive rod 72, a fixed shaft 732 is fixedly connected in the one-way groove 731, a drive gear block 733 is rotatably connected to the side wall of the fixed shaft 732, and a semi-circular gear 734 is fixedly connected to the side wall of the drive gear block 733.

[0052] The drive rod 72 has an unlocking groove 75, and the unlocking rod 76 is slidably connected in the unlocking groove 75. The other end of the unlocking groove 75 is provided with a hydraulic component 78. The hydraulic component 78 includes a hydraulic chamber 781 fixedly connected above the support frame 35. A hydraulic plate 782 is slidably connected in the hydraulic chamber 781. The hydraulic plate 782 is connected to the hydraulic chamber 781 through a return spring 784. The hydraulic chamber 781 is connected to the unlocking groove 75 through a hose 783. A drive block 79 is provided on one side of the hydraulic plate 782. The drive block 79 is fixedly connected to one side of the wedge block 53. The side wall of the unlocking rod 76 is provided with the same number of tooth block groups 77 as the one-way tooth block component 73. The tooth block groups 77 are meshed with the semi-circular gear 734.

[0053] The telescopic design of the worktable 64 can prevent the workpiece from being restricted by the worktable 64 when rotating, which would cause the workpiece to get stuck. The telescopic spring 63 is designed to quickly drive the worktable 64 to reset.

[0054] Driven by the drive assembly 7, the worktable 64 is lowered to its lowest position when the workpiece rotates, preventing the workpiece from getting stuck during rotation. When the connecting shaft 34 rotates, the drive gear 71, fixedly connected to the side wall of the connecting shaft 34, rotates synchronously, thereby driving the drive rod 72, which is equipped with the one-way gear block component 73, to slide downwards. Since the drive rod 72 is fixedly connected to the worktable 64 via the connecting block 74, the worktable 64 slides downwards synchronously until it reaches its lowest position. The one-way design of the one-way gear block component 73 prevents the connecting shaft 34 from rotating in the opposite direction when the worktable 64 is reset, ensuring the stable operation of the workpiece flipping device 3. The design of the one-way groove 731 and the drive gear block 733 ensures that the drive gear 71... Figure 10 When the position shown is rotated clockwise, the drive gear 71 meshes with the drive gear block 733, thereby driving the drive rod 72 and the worktable 64 fixedly connected to it to slide downward. This design allows the worktable 64 to slide downward synchronously when the workpiece is flipped, so as to ensure the stability of the workpiece flipping.

[0055] After the workpiece rotates, the fixing assembly 5 fixes the connecting shaft 34. At this time, the drive block 79, which is fixedly connected to one side of the wedge block 53, abuts against one end of the hydraulic plate 782, causing the hydraulic plate 782 to slide within the hydraulic chamber 781. This causes the hydraulic oil in the hydraulic chamber 781 to be injected into the unlocking groove 75 through the hose 783, causing the unlocking rod 76 to slide downwards. This causes the gear block assembly 77, which is fixedly connected to one side of the unlocking rod 76, to mesh with the semi-circular gear 734, causing the drive gear block 733 to rotate counterclockwise. At this time, the drive gear 71... Since the drive rod 72 is no longer restricted, it will slide upward under the action of the telescopic spring 63. When the wedge block 53 slides upward, the drive block 79 does not resist the hydraulic plate 782. Therefore, the hydraulic plate 782 is reset under the drive of the return spring 784. Thus, the unlocking rod 76 will slide upward synchronously, thereby driving the drive tooth block 733 to reset for the next drive. Through this design, when the workpiece is rotating, the worktable surface 64 can be quickly driven to slide downward to prevent affecting the flipping of the workpiece.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A small CNC drilling and milling machine with flip positioning, comprising a base plate (1), characterized in that: A lifting processing device (2) is installed inside the base plate (1). The lifting processing device (2) includes a drive motor (21) fixedly connected to one side of the base plate (1). A disc (22) is fixedly connected to the output end of the drive motor (21). A track groove (23) is opened inside the disc (22). A slide rod (24) is slidably connected inside the track groove (23). An installation rod (25) is fixedly connected to the other end of the slide rod (24). A processing device (26) is installed at the bottom of the installation rod (25). A workpiece flipping device (3) is set at the center of the disc (22). The workpiece flipping device (3) includes a central shaft (31) fixedly connected to the center of the disc (22). A broken gear (32) is fixedly connected to the output end of the central shaft (31). The broken gear (32) meshes with a rotating gear (33). A connecting shaft (34) is fixedly connected to the center of one side of the rotating gear (33). The connecting shaft (34) is rotatably connected to the upper end of the support frame (35). The support frame (35) is fixedly connected to the bottom upper surface of the base plate (1). The other end of the connecting shaft (34) is connected to a workpiece clamp (36) through an adjustment component (4). The same workpiece clamp (36) is installed on the side of the base plate (1) opposite to the lifting processing device (2). The tooth circumferential array of the defective gear (32) has four sets; The support frame (35) is provided with a fixing component (5), which includes a sliding groove (51) opened in the support frame (35). A sliding plug rod (52) and a limiting plate (55) are slidably connected in the sliding groove (51). The limiting plate (55) is fixedly connected to the side wall of the sliding plug rod (52). A wedge block (53) is fixedly connected to the top of the sliding plug rod (52). The other end of the sliding plug rod (52) is inserted into a fixed plug groove (57), which is opened in the side wall of the connecting shaft (34). The wedge (53) is abutted by the driving arc plate (54), the driving arc plate (54) is fixedly connected to the surface of the broken gear (32), and the limiting plate (55) is connected to the slide groove (51) through the limiting spring (56). There are four drive arc plates (54) arranged in a circle, and the drive arc plates (54) are set at the corresponding positions on the smooth surface of the defective gear (32).

2. A small CNC drilling and milling machine with flip positioning according to claim 1, characterized in that: The other end of the mounting rod (25) away from the slide rod (24) is fixedly connected to a limiting rod (27). The other end of the limiting rod (27) is slidably connected in the lifting groove (28). The lifting groove (28) is opened in the base plate (1). The bottom of the limiting rod (27) is connected to the lifting groove (28) through a lifting spring (29).

3. A small CNC drilling and milling machine with flip positioning according to claim 1, characterized in that: The adjustment component (4) is used to adjust the distance between the two workpiece clamps (36). The adjustment component (4) includes a telescopic groove (41) opened on one side of the connecting shaft (34). A telescopic rod (42) is slidably connected in the telescopic groove (41). The workpiece clamp (36) is provided at the other end of the telescopic rod (42).

4. A small CNC drilling and milling machine with flip positioning according to claim 3, characterized in that: One end of the telescopic rod (42) is provided with a circular groove (43), and the circular groove (43) is rotatably connected to a rotating shaft (44) via a torsion spring (45). The other end of the rotating shaft (44) is fixedly connected to one side of the workpiece fixture (36). The side wall of the connecting shaft (34) is provided with a fixing groove (46), which communicates with the telescopic groove (41). A bolt (47) is installed in the fixing groove (46).

5. A small CNC drilling and milling machine with flip positioning according to claim 1, characterized in that: The bottom of the processing equipment (26) is provided with a telescopic table device (6). The telescopic table device (6) includes a bottom shell (61) fixedly connected to the bottom upper surface of the base plate (1). A telescopic inner rod (62) is slidably connected inside the bottom shell (61) by a telescopic spring (63). The other end of the telescopic inner rod (62) is fixedly connected to a worktable (64).

6. A small CNC drilling and milling machine with flip positioning according to claim 5, characterized in that: The extension and retraction of the worktable (64) is driven by a drive assembly (7), which includes a drive gear (71) fixedly connected to the side wall of the connecting shaft (34). A drive rod (72) is provided on the side wall of the drive gear (71). Several sets of unidirectional tooth block components (73) are provided inside the drive rod (72). A connecting block (74) is fixedly connected to one side of the drive rod (72). The connecting block (74) is fixedly connected to one side of the worktable (64).

7. A small CNC drilling and milling machine with flip positioning according to claim 6, characterized in that: The one-way tooth block component (73) includes a one-way groove (731) opened in the drive rod (72), a fixed shaft (732) is fixedly connected in the one-way groove (731), a drive tooth block (733) is rotatably connected to the side wall of the fixed shaft (732), and a semi-circular gear (734) is fixedly connected to the side wall of the drive tooth block (733).

8. A small CNC drilling and milling machine with flip positioning according to claim 7, characterized in that: The drive rod (72) has an unlocking groove (75) inside, and the unlocking rod (76) is slidably connected inside the unlocking groove (75). The other end of the unlocking groove (75) is provided with a hydraulic component (78). The hydraulic component (78) includes a hydraulic chamber (781) fixedly connected above the support frame (35). A hydraulic plate (782) is slidably connected inside the hydraulic chamber (781). The hydraulic plate (782) is connected to the hydraulic chamber (781) through a return spring (784). The hydraulic chamber (781) is connected to the unlocking groove (75) through a hose (783). A drive block (79) is provided on one side of the hydraulic plate (782). The drive block (79) is fixedly connected to one side of the wedge block (53). The side wall of the unlocking rod (76) is provided with the same number of tooth block groups (77) as the one-way tooth block component (73). The tooth block groups (77) are meshed with the semi-circular gear (734).

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