Integrated multi-axis numerical control machining center

Abstract

The invention relates to the field of numerical control machine tools, in particular to an integrated multi-axis numerical control machining center which comprises a numerical control machine body, a main rotating shaft is rotationally connected into the numerical control machine body, a machining system is arranged in the numerical control machine body, and a driving and control system used for controlling the machining angle of parts is rotationally connected into the numerical control machine body. A grinding matching mechanism used for switching between the angle of a part and the machining angle is rotationally connected into the numerical control machine body, and a machining table is fixed into the numerical control machine body. According to the special curved surface machining device, after an arc-shaped groove is extruded, when a spline rod rotates, a spline groove in the same interval drives a conical block to rotate, when the conical block rotates, a numerical control telescopic rod is driven to rotate, when the numerical control telescopic rod rotates, a movable platform and a workbench can be driven to conduct angle deflection, a special curved surface workpiece can be directly machined, and cost is saved; meanwhile, the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tools, specifically to an integrated multi-axis CNC machining center. Background Technology

[0002] With the rapid development of high-end manufacturing fields such as aerospace, precision medical devices, energy equipment (such as impellers and turbines), automotive molds, and precision optical devices, the demand for complex curved surfaces, high precision, and high consistency parts has increased dramatically. These parts usually have features such as free-form surfaces, deep cavities, slender structures, and thin walls, with complex geometry and extremely high requirements for dimensional accuracy, geometric tolerances, and surface roughness.

[0003] While existing CNC machining technologies, including three-axis and four-axis machining centers, have greatly promoted the development of complex parts manufacturing, they still generally suffer from problems such as relatively limited functionality, accuracy loss due to multiple clamping operations, low efficiency due to dispersed processes, insufficient capacity to process highly complex and precision-required parts, and room for improvement in automation and intelligence levels. Using five-axis or higher-axis machining centers would increase costs and labor costs, placing a significant burden on small factories. To meet the urgent needs of high-end manufacturing industries for high efficiency, high precision, high flexibility, and high complexity, there is a pressing need to develop an integrated multi-axis CNC machining center. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated multi-axis CNC machining center to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: An integrated multi-axis CNC machining center, comprising a CNC machine body, a main spindle rotatably connected inside the CNC machine body, a machining system disposed inside the CNC machine body, a drive and control system for controlling the machining angle of parts rotatably connected inside the CNC machine body, a grinding and mating mechanism for converting between the part angle and the machining angle rotatably connected inside the CNC machine body, a machining table fixed inside the CNC machine body, and an auxiliary mechanism for changing the machining table at multiple angles connected between the machining table and the drive and control system.

[0005] Preferably, the drive and control system includes a threaded rod one, which is rotatably connected inside the CNC machine body and set at an inclined angle; a threaded rod two is rotatably connected inside the CNC machine body, and the threaded rod two and the threaded rod one are on the same horizontal line; an annular groove is fixedly connected inside the CNC machine body, and the threaded rod two is rotatably connected in a branch of the annular groove; and an electric telescopic rod is fixedly connected inside the CNC machine body.

[0006] Preferably, a sliding sleeve is slidably connected between the surfaces of the second threaded rod and the first threaded rod. A groove is formed on the surface of the sliding sleeve. A retaining rod is fixedly connected to the surface of the first threaded rod. A slot is rotatably connected to the surface of the sliding sleeve. The slot is parallel to the ground. The telescopic end of the electric telescopic rod is slidably connected inside the slot. A spring is provided between the sliding sleeve and the first threaded rod. A gear plate is rotatably connected inside the annular groove. An extension rod is fixedly connected to the side of the gear plate. The main rotating shaft is fixedly connected to the processing system, and a gear plate is fixedly connected to the surface of the main rotating shaft. The gear plate engages with the first threaded rod, and the gear plate engages with the second threaded rod.

[0007] Preferably, the grinding mechanism includes a telescopic rod, one end of which is hinged to an extension rod. A rotating rod is rotatably connected inside the CNC machine body. The other end of the telescopic rod is hinged to the rotating rod. A CNC telescopic rod is rotatably connected to the CNC machine body. A support block is fixedly connected inside the CNC machine body. A conical groove is formed inside the support block. A conical block is splined to one end of the CNC telescopic rod. A telescopic spring is provided between the conical block and the interior of the CNC telescopic rod. An arc-shaped groove is formed at one end of the conical block. An interval spline groove is formed inside the conical block.

[0008] Preferably, one end of the rotating rod is provided with an arc-shaped spring groove, and a spherical extrusion block is slidably connected inside the arc-shaped spring groove. One end of the rotating rod is fixedly connected with a spline rod. The spherical extrusion block is initially embedded inside the arc-shaped groove, and the spline rod is slidably connected inside the spline groove. When the spline rod rotates, there is a delayed rotation interval.

[0009] Preferably, the processing table includes a movable platform, which is fixedly connected to the surface of the CNC telescopic rod. The surface of the movable platform is connected to a worktable via CNC sliding and rotatable connection, and a control sliding block is fixedly connected to the lower end of the worktable.

[0010] Preferably, the auxiliary mechanism includes an arc-shaped rack, which is fixedly connected to the surface of the extension rod. A rotating rod is rotatably connected inside the CNC machine body. A large gear is fixedly connected to one end of the rotating rod, and a small gear is fixedly connected to the other end of the rotating rod. A limit groove is fixedly connected to the surface of the control sliding block, and a sliding toothed plate is slidably connected inside the limit groove.

[0011] Preferably, a limiting block is rotatably connected to the surface of the sliding toothed plate, and a hollow rod is fixedly connected to the upper end of the limiting block. A circulating groove is opened inside the hollow rod, and a sliding rod is slidably connected inside the hollow rod. The sliding rod is also slidably connected inside the circulating groove. An electric rod is slidably connected inside the CNC machine body, and one end of the electric rod is fixedly connected to the top end of the sliding rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] In this invention, after being squeezed by the arc-shaped groove, the spline rod rotates, and the spline groove in the same area drives the conical block to rotate. When the conical block rotates, it drives the CNC telescopic rod to rotate. When the CNC telescopic rod rotates, it can drive the moving platform to deflect at an angle with the worktable, which can directly process special curved surface workpieces, saving costs and increasing work efficiency at the same time.

[0014] In this invention, the large gear is driven to rotate when the arc-shaped rack swings. When the large gear rotates, it drives the small gear to rotate through the rotating rod. The rotation of the small gear will drive the sliding tooth plate that meshes with it and the locked limiting slide to move. At this time, the limiting slide will achieve another angle deflection by controlling the sliding block to pull or push the worktable, so as to realize efficient and low-cost processing of workpieces with different arcs and curvatures.

[0015] In this invention, the spherical extrusion block is reset in the arc-shaped spring groove, and then enters the interior of the previous arc-shaped groove. The conical block is reset by the telescopic spring, fits into the conical groove, and is locked by friction, thus ensuring the stability of the workpiece during processing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional appearance diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the side cross-sectional structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the CNC machine body of the present invention;

[0019] Figure 4 This is a schematic diagram of the drive and control system structure of the present invention. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the drive and control system structure of the present invention. Figure 2 ;

[0021] Figure 6 This is a schematic diagram of the drive and control system structure of the present invention. Figure 3 ;

[0022] Figure 7 This is a schematic diagram of the grinding and mating mechanism of the present invention;

[0023] Figure 8 This is a schematic diagram of the side cross-sectional structure of the support block of the present invention;

[0024] Figure 9 This is a side cross-sectional view of the grinding and mating mechanism of the present invention;

[0025] Figure 10This is an enlarged schematic diagram of the conical block structure of the present invention;

[0026] Figure 11 This is an enlarged schematic diagram of the rotating rod structure of the present invention;

[0027] Figure 12 This is a schematic diagram of the processing table structure of the present invention;

[0028] Figure 13 This is a schematic diagram of the auxiliary mechanism structure of the present invention. Figure 1 ;

[0029] Figure 14 This is a schematic diagram of the auxiliary mechanism structure of the present invention. Figure 2 ;

[0030] Figure 15 This is a partially enlarged schematic diagram of the auxiliary mechanism of the present invention.

[0031] In the diagram: 1. CNC machine body; 2. Main spindle; 3. Machining system; 4. Drive and control system; 5. Grinding and mating mechanism; 6. Machining table; 7. Auxiliary mechanism; 41. Threaded rod one; 42. Threaded rod two; 43. Annular groove; 44. Electric telescopic rod; 45. Sliding sleeve; 46. Slot; 47. Locking rod; 48. Groove; 49. Spring; 410. Gear disc one; 411. Extension rod; 412. Gear disc two; 51. Telescopic rod; 52. Rotating rod; 53. CNC telescopic rod; 54. Support block; 55. Conical groove; 56. Conical block; 57. Telescopic spring; 58. Arc-shaped groove; 59. Interval spline groove; 510. Arc-shaped spring groove; 511. Spherical extrusion block; 512. Spline rod; 61. Moving platform; 62. Worktable; 63. Control sliding block; 71. Arc-shaped rack; 72. Rotating rod; 73. Large gear; 74. Small gear; 75. Limiting groove; 76. Sliding toothed plate; 77. Limiting block; 78. Hollow rod; 79. Circulating inclined groove; 710. Slide rod; 711. Electric rod. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1 to 15This invention provides a technical solution: an integrated multi-axis CNC machining center, including a CNC machine body 1, a main spindle 2 rotatably connected inside the CNC machine body 1, a machining system 3 inside the CNC machine body 1, a drive and control system 4 rotatably connected inside the CNC machine body 1 for controlling the machining angle of parts, a grinding and mating mechanism 5 rotatably connected inside the CNC machine body 1 for converting between the part angle and the machining angle, a machining table 6 fixed inside the CNC machine body 1, and an auxiliary mechanism 7 connecting the machining table 6 and the drive and control system 4 to enable the machining table 6 to change multiple angles. When the main spindle 2 rotates, it drives the machining system 3 to deflect at an angle, thereby machining specific parts, making up for the deficiencies of three-axis and four-axis machining centers, while saving resources and costs compared to five-axis machining centers.

[0034] The drive and control system 4 includes a threaded rod 41, which is rotatably connected inside the CNC machine body 1 and set at an inclined angle. A threaded rod 42 is rotatably connected inside the CNC machine body 1. The threaded rod 42 and the threaded rod 41 are on the same horizontal line. An annular groove 43 is fixedly connected inside the CNC machine body 1. The threaded rod 42 is rotatably connected in the branches of the annular groove 43. An electric telescopic rod 44 is fixedly connected inside the CNC machine body 1.

[0035] A sliding sleeve 45 is slidably connected between the surfaces of threaded rod 42 and threaded rod 41. A groove 46 is provided on the surface of the sliding sleeve 45. A retaining rod 47 is fixedly connected to the surface of threaded rod 41. A slot 48 is rotatably connected to the surface of the sliding sleeve 45. The slot 48 is parallel to the ground. At the same time, the telescopic end of the electric telescopic rod 44 is slidably connected inside the slot 48. A spring 49 is provided between the sliding sleeve 45 and threaded rod 41. A gear disc 410 is rotatably connected inside the annular groove 43. An extension rod 411 is fixedly connected to the side of the gear disc 410. The main rotating shaft 2 is fixedly connected to the processing system 3. A gear disc 412 is fixedly connected to the surface of the main rotating shaft 2. The gear disc 412 meshes with threaded rod 41, and the gear disc 410 meshes with threaded rod 42.

[0036] The grinding mechanism 5 includes a telescopic rod 51, one end of which is hinged to an extension rod 411. A rotating rod 52 is rotatably connected inside the CNC machine body 1. The other end of the telescopic rod 51 is hinged to the rotating rod 52. A CNC telescopic rod 53 is rotatably connected to the CNC machine body 1. A support block 54 is fixedly connected inside the CNC machine body 1. A tapered groove 55 is provided inside the support block 54. A tapered block 56 is splined to one end of the CNC telescopic rod 53. A telescopic spring 57 is provided between the tapered block 56 and the CNC telescopic rod 53. An arc-shaped groove 58 is provided at one end of the tapered block 56. An interval spline groove 59 is provided inside the tapered block 56. One end of the rotating rod 52 is... An arc-shaped spring groove 510 is provided, and a spherical extrusion block 511 is slidably connected inside the arc-shaped spring groove 510. One end of the rotating rod 52 is fixedly connected to a spline rod 512. The spherical extrusion block 511 is initially embedded inside the arc-shaped groove 58. The spline rod 512 is slidably connected inside the inter-specimen groove 59. When the spline rod 512 rotates, there is a delayed rotation interval. The spherical extrusion block 511 is reset in the arc-shaped spring groove 510 and will enter the previous arc-shaped groove 58. The conical block 56 is reset by the telescopic spring 57, fits with the conical groove 55, and is locked by friction, ensuring the stability of the workpiece during processing.

[0037] The machining table 6 includes a movable platform 61, which is fixedly connected to the surface of the CNC telescopic rod 53. The surface of the movable platform 61 is connected to the worktable 62 via CNC sliding and rotatable connection. The lower end of the worktable 62 is fixedly connected to a control sliding block 63. After being squeezed by the arc-shaped groove 58, when the spline rod 512 rotates, the spline groove 59 in the same interval drives the conical block 56 to rotate. When the conical block 56 rotates, it drives the CNC telescopic rod 53 to rotate. When the CNC telescopic rod 53 rotates, it can drive the movable platform 61 and the worktable 62 to deflect at an angle, which can directly process special curved surface workpieces, saving costs and increasing work efficiency.

[0038] The auxiliary mechanism 7 includes an arc-shaped rack 71, which is fixedly connected to the surface of the extension rod 411. A rotating rod 72 is rotatably connected inside the CNC machine body 1. A large gear 73 is fixedly connected to one end of the rotating rod 72, and a small gear 74 is fixedly connected to the other end. A limit groove 75 is fixedly connected to the surface of the control sliding block 63. When the arc-shaped rack 71 swings, it drives the meshing large gear 73 to rotate. When the large gear 73 rotates, it drives the small gear 74 to rotate via the rotating rod 72. The rotation of the small gear 74 drives the meshing sliding toothed plate 76 and the locked limit groove 75 to move. At this time, the limit groove 75 will move by controlling the sliding... Block 63 pulls or pushes the worktable 62 to achieve another angle deflection, enabling efficient and low-cost processing of workpieces with different arcs and curvatures. The sliding toothed plate 76 is slidably connected inside the limiting slide groove 75. The surface of the sliding toothed plate 76 is rotatably connected to the limiting block 77. The upper end of the limiting block 77 is fixedly connected to the hollow rod 78. The hollow rod 78 has a circulating inclined groove 79 inside. The sliding rod 710 is slidably connected inside the hollow rod 78. The sliding rod 710 is also slidably connected inside the circulating inclined groove 79. The CNC machine body 1 is slidably connected to the electric rod 711. One end of the electric rod 711 is fixedly connected to the top end of the sliding rod 710.

[0039] The method of use and advantages of this invention: The working process of this integrated multi-axis CNC machining center is as follows: Figures 1 to 15 As shown.

[0040] In use, the workpiece is first placed on the surface of the worktable 62 and processed according to the parameters set by the CNC machine body 1. For workpieces with curvature (such as impellers and fan blades with small curvature), the main spindle can be controlled to rotate by the CNC machine body 1 during processing. The rotation angle can be preset in advance. At the same time, appropriate angle deflection can be made during processing. When the main spindle 2 rotates, it drives the machining system 3 to deflect at an angle to process specific workpieces, making up for the shortcomings of three-axis machining centers and four-axis machining centers, while saving resources and costs compared to five-axis machining centers.

[0041] Simultaneously, when the orientation of the workpiece needs to be adjusted, the rotation of the main shaft 2 will drive the rotating rod of the gear plate 412 on the surface. The rotation of the gear plate 412 will drive the rotation of the threaded rod 41. At this time, the threaded rod 41 drives the sliding sleeve 45 to rotate freely, but will not drive the threaded rod 42 to rotate. When the CNC machine body 1 drives the electric telescopic rod 44 to move downward, the electric telescopic rod 44 will slide and press the groove 48 in the slot 48 while moving upward. When the groove 48 is pressed, it will drive the sliding sleeve 45 to slide on the surface of the threaded rod 41 and the threaded rod 42. When the sliding sleeve 45 slides, it will drive the slot 46 and the locking rod 47 to engage. At this time, when the threaded rod 41 rotates, it will drive the threaded rod 42 to rotate through the sliding sleeve 45. When the threaded rod 42 rotates, it will drive the gear plate 410 engaged at the lower end to rotate. When the gear plate 410 rotates, it will simultaneously drive the extension rod 411 fixed on the side to deflect at an angle. The angle deflection of the extension rod 411 is coordinated with the rotation angle of the main shaft 2.

[0042] When the extension rod 411 rotates, the telescopic rod 51, which is hinged at the lower end, drives the rotating rod 52 at the other end of the telescopic rod 51 to rotate inside the CNC machine body 1. When the rotating rod 52 rotates, it drives the spherical extrusion block 511 inside the arc-shaped spring groove 510 to rotate. The spherical extrusion block 511 is first resisted by the arc-shaped groove 58 opened at one end of the conical block 56, which squeezes the spherical extrusion block 511 to the edge of the arc-shaped spring groove 510. At this time, the spherical extrusion block 511 will squeeze the arc-shaped groove 58. When the arc-shaped groove 58 is squeezed, it will drive the conical block 56 to slide in the conical groove 55 opened in the support block 54, so that the conical block 56 and the conical groove 55 are temporarily separated. At the same time, the conical block 56 will slide in the CNC telescopic rod 53 and squeeze the telescopic spring 57. When the rotating rod 52 rotates, it will drive the spline rod 512. When the spline rod 512 rotates, there is a rotating rod interval within the spline groove 59. After being squeezed in the arc-shaped groove 58, the spline rod 512 rotates, and the spline groove 59 drives the conical block 56 to rotate. When the conical block 56 rotates, it drives the CNC telescopic rod 53 to rotate. When the CNC telescopic rod 53 rotates, it can drive the moving platform 61 to deflect at an angle with the worktable 62, which can directly process special curved surface workpieces, saving costs and increasing work efficiency. When the rotating rod 52 stops rotating, the spherical extrusion block 511 will be reset through the arc-shaped spring groove 510. At the same time, the spherical extrusion block 511 will enter the interior of the previous arc-shaped groove 58. The conical block 56 is reset through the telescopic spring 57, fits with the conical groove 55, and is locked by friction, ensuring the stability of the workpiece during processing.

[0043] Finally, on some special workpieces, the electric rod 711 is driven downward by the CNC machine body 1. When the electric rod 711 moves downward, it will drive the slide rod 710 to slide downward in the hollow rod 78 and squeeze the circulating inclined groove 79 in the hollow rod 78. When the circulating inclined groove 79 is squeezed, it will drive the hollow rod 78 to rotate. When the hollow rod 78 rotates, it will drive the limiting block 77 fixedly connected at the lower end to rotate. In this way, the limiting slide groove 75 and the sliding toothed plate 76 can be locked by the squeezing force. In the initial state, the limiting slide groove 75 can be moved freely by the worktable 62. When the limiting slide groove 75 and the sliding toothed plate 76 are locked together, the limiting slide groove 75 can be locked to the sliding toothed plate 76. When the moving toothed plate 76 is locked, the extension rod 411 swings, which drives the surface-fixed arc-shaped rack 71 to swing. When the arc-shaped rack 71 swings, it drives the meshing large gear 73 to rotate. When the large gear 73 rotates, it drives the small gear 74 to rotate through the rotating rod 72. The rotation of the small gear 74 will drive the sliding toothed plate 76 that meshes with it and the locked limiting slide groove 75 to move. At this time, the limiting slide groove 75 will pull or push the worktable 62 by controlling the sliding block 63 to achieve another angle deflection, so as to realize efficient and low-cost processing of workpieces with different arcs and curvatures.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated multi-axis CNC machining center, comprising a CNC machine body (1), characterized in that: The CNC machine body (1) is rotatably connected to a main spindle (2). The CNC machine body (1) is equipped with a machining system (3), and the machining system (3) is fixedly connected to the main spindle (2). The CNC machine body (1) is equipped with a drive and control system (4) for controlling the machining angle of parts. The CNC machine body (1) is rotatably connected with a grinding and mating mechanism (5) for changing the machining angle of parts. The CNC machine body (1) is fixed with a machining table (6). An auxiliary mechanism (7) is connected between the machining table (6) and the drive and control system (4) for driving the machining table (6) to change multiple angles.

2. The integrated multi-axis CNC machining center according to claim 1, characterized in that: The drive and control system (4) includes a threaded rod (41) that is inclined and rotatably connected inside the CNC machine body (1); a threaded rod (42) that is horizontally arranged with the threaded rod (41); an annular groove (43) fixed inside the CNC machine body (1), wherein the threaded rod (42) is rotatably connected inside the annular groove (43); and an electric telescopic rod (44) fixed inside the CNC machine body (1).

3. An integrated multi-axis CNC machining center according to claim 2, characterized in that: The threaded rod one (41) and the threaded rod two (42) are slidably connected by a sliding sleeve (45), including a groove (46) opened on the surface of the sliding sleeve (45); and a locking rod (47) fixed to the surface of the threaded rod one (41) and cooperating with the groove (46); A slot (48) is rotatably connected to the surface of the sliding sleeve (45) and parallel to the ground, and the telescopic end of the electric telescopic rod (44) is slidably connected to the slot (48); a spring (49) is connected between the sliding sleeve (45) and the threaded rod (41); a gear disk (410) is rotatably connected to the annular groove (43); an extension rod (411) is fixed to the side of the gear disk (410); a gear disk (412) is fixed to the surface of the main rotating shaft (2), the gear disk (412) meshes with the threaded rod (41), and the gear disk (410) meshes with the threaded rod (42).

4. An integrated multi-axis CNC machining center according to claim 3, characterized in that: The grinding mechanism (5) includes a telescopic rod (51) with one end hinged to the extension rod (411), and a rotating rod (52) rotatably connected to the inside of the CNC machine body (1). The other end of the telescopic rod (51) is hinged to the rotating rod (52). It also includes a CNC telescopic rod (53) rotatably connected to the inside of the CNC machine body (1), and a support block (54) fixed inside the CNC machine body (1). The support block (54) has a conical groove (55) inside, a conical block (56) splined to one end of the CNC telescopic rod (53), and a telescopic spring (57) between the conical block (56) and the CNC telescopic rod (53). An arc-shaped groove (58) is opened at one end of the conical block (56). An interval spline groove (59) is opened inside the conical block (56). An arc-shaped spring groove (510) is opened at the end of the rotating rod (52).

5. An integrated multi-axis CNC machining center according to claim 4, characterized in that: A spherical extrusion block (511) is slidably connected in the arc-shaped spring groove (510). In the initial state, it is embedded in the arc-shaped groove (58) and fixed to the spline rod (512) at the end of the rotating rod (52). The spline rod (512) is slidably connected in the interval spline groove (59), and the interval spline groove (59) provides a delayed rotation interval for the spline rod (512) to have axial displacement.

6. An integrated multi-axis CNC machining center according to claim 5, characterized in that: The processing table (6) includes a moving platform (61) fixed to the surface of the CNC telescopic rod (53), a worktable (62) connected to the surface of the moving platform (61) by CNC sliding and rotation, and a control sliding block (63) fixed to the lower end of the worktable (62).

7. An integrated multi-axis CNC machining center according to claim 6, characterized in that: The auxiliary mechanism (7) includes an arc-shaped rack (71) fixed to the surface of the extension rod (411), and a rotating rod (72) rotatably connected to the inside of the CNC machine body (1); a large gear (73) fixed to one end of the rotating rod (72), which meshes with the arc-shaped rack (71); a small gear (74) fixed to the other end of the rotating rod (72); a limiting groove (75) fixed to the surface of the control sliding block (63); and a sliding toothed plate (76) slidably connected in the limiting groove (75), which meshes with the small gear (74).

8. An integrated multi-axis CNC machining center according to claim 7, characterized in that: A limiting block (77) is rotatably connected to the surface of the sliding toothed plate (76); a hollow rod (78) fixed to the upper end of the limiting block (77) has a circulating groove (79) inside; a sliding rod (710) is slidably connected inside the hollow rod (78), and the sliding rod (710) is slidably engaged with the circulating groove (79); an electric rod (711) is slidably connected inside the CNC machine body (1), and one end of the electric rod (711) is fixedly connected to the top end of the sliding rod (710).

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