Numerically controlled machine tool angular milling head

Abstract

The application discloses a numerical control machine tool angular milling head, and relates to the technical field of boring and milling head equipment, which comprises a connecting shell, a transmission assembly, a matching plate, a sliding block, a driving assembly and a milling cutter mounting piece. The upper end of the connecting shell is fixedly connected with a machine tool, and a transmission cavity is vertically arranged in the connecting shell. The transmission assembly is rotatably arranged in the transmission cavity and is fixedly connected with a machine tool spindle. The matching plate is fixedly connected below the connecting shell, and the matching plate is horizontally provided with a cross sliding groove which is communicated with the transmission cavity. The sliding block is slidingly arranged in the cross sliding groove, and a through hole is vertically arranged in the center of the sliding block. The driving assembly is arranged on the matching plate and drives the sliding block to move. The milling cutter mounting piece is fixedly arranged at the lower end of the sliding block. The application has the effect of reducing the machining direction of the existing angular milling head and solving the problem that the existing angular milling head cannot machine complex parts.

Description

Technical Field

[0001] This application relates to the field of boring and milling head equipment technology, and in particular to a CNC machine tool corner milling head. Background Technology

[0002] CNC milling machines are automated machining equipment developed from general milling machines. The machining processes of the two are basically the same, and their structures are also quite similar. When dealing with end-face machining, CNC milling machines often use angle milling heads to expand the machine's machining range. They are widely used when machining large workpieces or products requiring high precision.

[0003] A related CNC machine tool angle milling head includes a fixed structure, a transmission structure, and a milling structure. In use, the angle milling head is mounted on the spindle of a vertical milling machine, and the internal structure drives the milling structure to process materials.

[0004] However, existing angle milling heads are limited by machine tools, and the cutting tools can only machine in a limited number of directions, making it impossible to process more complex and unusual parts. Utility Model Content

[0005] To address the limitations of existing angle milling heads in terms of limited machining directions and inability to process complex parts, this application provides a CNC machine tool angle milling head.

[0006] This application provides a CNC machine tool angle milling head, which adopts the following technical solution: A CNC machine tool corner milling head, comprising: The connecting housing is fixedly connected to the machine tool at its upper end, and a transmission cavity is vertically arranged inside the connecting housing; The transmission assembly is rotatably mounted in the transmission cavity and is fixedly connected to the machine tool spindle. The mating plate is fixedly connected to the lower part of the connecting housing. The mating plate is horizontally provided with a cross groove, which communicates with the transmission cavity. The slider is slidably disposed within a cross groove, and a through hole is vertically disposed at the center of the slider. A drive component is mounted on the mating plate and drives the slider to move. The milling cutter mounting component is fixedly mounted on the lower end of the slider.

[0007] By adopting the above technical solution, the connecting housing provides space for the transmission assembly, allowing the transmission assembly to rotate synchronously with the machine tool spindle within the transmission cavity when the machine tool spindle rotates. The drive assembly enables the slider to slide in the cross groove. Simultaneously, it allows the milling cutter mounting component to transmit power in different directions, thereby expanding the machining direction and range of the CNC machine tool's angle milling head.

[0008] Optionally, the transmission components include: A drive shaft is rotatably mounted within a through hole; The universal coupling has its upper end fixedly connected to the machine tool spindle and its lower end fixedly connected to the drive shaft.

[0009] By adopting the above technical solution, the universal coupling enables a flexible connection between the drive shaft and the machine tool spindle, effectively absorbing and compensating for angular and positional deviations between them, thereby improving the adaptability of the angle milling head. The drive shaft is rotatably mounted within the through hole of the slide block, allowing the transmission components to flexibly adjust their position as the slide block moves within the cross groove, enhancing the machining flexibility of the angle milling head.

[0010] Optionally, the driver components include: The first motor track is horizontally fixed on the upper end of the mating plate, and the first motor track is set on the edge of the mating plate; The second motor track is horizontally fixed on the upper end of the mating plate and is located on the edge of the mating plate. The second motor track is perpendicular to the first motor track. The first motor is slidably mounted on the first motor track; The second motor is slidably mounted on the second motor track; The first threaded rod has one end fixedly mounted on the output end of the first motor, and the first threaded rod engages with the thread on the slider. The second threaded rod has one end fixedly mounted on the output end of the second motor, and the second threaded rod engages with the thread on the slider. The track for the first motor is higher than the track for the second motor.

[0011] By adopting the above technical solution, the first threaded rod is configured so that when the first motor rotates, the first threaded rod rotates synchronously, driving the slider to slide along the cross groove. The second threaded rod is configured so that when the second motor rotates, the second threaded rod rotates synchronously, driving the slider to slide along the cross groove, thereby improving the machining range of the angle milling head.

[0012] Optional, the milling cutter mount includes: The tool mounting housing has its upper end fixedly connected to the lower end of the slider by a fastener, and the tool mounting housing has a mating groove in the horizontal axis direction. A horizontal bevel gear is fixedly mounted at the bottom end of the drive shaft. Vertical bevel gear, which meshes with a horizontal bevel gear; The milling cutter is installed inside the tool mounting housing and fixed to the vertical bevel gear. The milling cutter is rotatably mounted on the tool mounting housing through a mating groove.

[0013] By adopting the above technical solutions, the tool mounting housing provides space for the tool mounting component and allows the tool mounting component to move synchronously with the slider, thus expanding the machining range of the tool; the horizontal bevel gear allows it to rotate synchronously with the drive shaft when the drive shaft rotates, and the vertical bevel gear converts the vertical rotation output of the horizontal bevel gear into a horizontal rotation output; the milling cutter enables power output to mill the workpiece.

[0014] Optionally, the drive shaft is rotatably connected to the inner wall of the through hole via a first bearing.

[0015] By adopting the above technical solution, the setting of the first bearing makes the rotation of the transmission shaft in the through hole smoother and unaffected by the slider, thereby improving the stability of the transmission.

[0016] Optionally, a second bearing is fixedly installed in the groove, and the inner circumference of the second bearing is fixedly connected to the milling cutter.

[0017] By adopting the above technical solution, the second bearing makes the rotation of the milling cutter in the mating groove more stable, thereby improving the machining accuracy of the milling cutter.

[0018] Optionally, a square protrusion is fixedly provided on the periphery of the slider, and the square protrusion is slidably disposed in the cross groove.

[0019] By adopting the above technical solution, the square convex plate makes the movement of the slider in the cross groove more stable, reduces the vibration generated by the rotation of the drive shaft, and improves the stability of the angle milling head.

[0020] Optionally, the fastener is a bolt.

[0021] By adopting the above technical solution, the bolts allow for quick installation and disassembly of the slider and milling cutter mounting components, facilitating the inspection and maintenance of the inside of the angle milling head.

[0022] Optionally, the universal coupling is a telescopic universal coupling.

[0023] By adopting the above technical solution, the telescopic universal coupling can achieve precise axial position adjustment, enabling the angle milling head to maintain stable power output when moving.

[0024] Optionally, multiple sets of the first bearing are provided at intervals along the length of the drive shaft.

[0025] By adopting the above technical solution, the arrangement of multiple sets of bearings can increase the stability of the drive shaft during rotation.

[0026] In summary, the embodiments of the present invention provide a CNC machine tool angle milling head, which includes at least one of the following beneficial technical effects: 1. The connection housing provides space for the transmission assembly, so that when the machine tool spindle rotates, the transmission assembly rotates synchronously with the machine tool spindle in the transmission cavity. The drive assembly can drive the slider to slide in the cross groove, and at the same time drive the milling cutter mounting part to transmit in different directions, thereby expanding the processing direction and range of the CNC machine tool angle milling head.

[0027] 2. The universal coupling enables a flexible connection between the drive shaft and the machine tool spindle, effectively absorbing and compensating for angular and positional deviations between them, thereby improving the adaptability of the angle milling head. The drive shaft is rotatably mounted within the through hole of the slide block, allowing the transmission components to flexibly adjust their position as the slide block moves within the cross groove, enhancing the machining flexibility of the angle milling head. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a CNC machine tool angle milling head provided in an embodiment of the present invention; Figure 2 A sectional view of a CNC machine tool corner milling head provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the drive assembly in a CNC machine tool corner milling head, provided by an embodiment of the present invention; Figure 4 This is a cross-sectional view of a slider in a CNC machine tool angle milling head, provided as an embodiment of the present invention.

[0029] Explanation of the markings in the image: 1. Connecting housing; 11. Mating plate; 12. Slider; 13. Transmission cavity; 14. Cross groove; 15. Through hole; 16. Mating groove; 17. Square convex plate; 18. Bolt; 19. Machine tool spindle; 2. Transmission assembly; 21. Universal coupling; 22. Transmission shaft; 23. First bearing; 31. First motor track; 32. Second motor track; 33. First motor; 34. Second motor; 35. First threaded rod; 36. Second threaded rod; 37. Sliding block; 38. Support block; 4. Milling cutter mounting part; 41. Tool mounting housing; 42. Horizontal bevel gear; 43. Vertical bevel gear; 44. Milling cutter; 45. Second bearing. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] Combination Figure 1 , Figure 2 and Figure 4This application discloses a CNC machine tool corner milling head, including: a connecting housing 1, a transmission assembly 2, a mating plate 11, a slider 12, a drive assembly, and a milling cutter mounting part 4. The upper end of the connecting housing 1 is fixedly connected to the machine tool, and a transmission cavity 13 is vertically arranged inside the connecting housing 1. The transmission assembly 2 is rotatably arranged in the transmission cavity 13, and the upper end of the transmission assembly 2 is fixedly connected to the machine tool spindle 19. The mating plate 11 is fixedly connected to the lower part of the connecting housing 1, and a cross groove 14 is horizontally arranged on the mating plate 11, which communicates with the transmission cavity 13. The slider 12 is slidably arranged in the cross groove 14, and a through hole 15 is vertically arranged in the center of the slider 12. The drive assembly is arranged on the mating plate 11 and drives the slider 12 to move. The milling cutter mounting part 4 is fixedly arranged at the lower end of the slider 12.

[0032] In this embodiment, the connecting housing 1 is cylindrical and has a transmission cavity 13 inside. The mating plate 11 is square, with cross grooves 14 on the upper and lower surfaces and a through groove in the middle. The slider 12 is cuboid, with the length and width being the same as the width of the cross groove 14. It has a through hole 15 in the vertical direction. A square protrusion 17 is provided in the middle of the periphery of the slider 12. The height of the square protrusion 17 is the same as the height of the through groove of the mating plate 11. Two protrusions are fixedly connected to the two vertical sides of the upper end of the slider 12. The protrusions are cuboid and have threaded through holes 15 along the direction parallel to the side of the slider 12. The threaded through holes 15 of the two protrusions are at different heights. The threaded through hole 15 of the upper protrusion is at the same height as the first threaded rod 35, and the threaded through hole 15 of the lower protrusion is at the same height as the second threaded rod 36. The milling cutter mounting part 4 is cuboid, with a hollow shell inside. Its upper surface is fixedly connected to the lower end of the slider 12 by bolts 18.

[0033] In practical use, the connecting housing 1 and the mating plate 11 are fixedly mounted on the machine tool. The transmission component 2 passes through the transmission cavity 13 and the through hole 15 on the slider 12, transmitting the rotational power of the machine tool spindle 19 to the milling cutter mounting component 4, driving the milling cutter 44 to rotate to achieve the purpose of milling. The drive component drives the slider 12 to slide laterally or longitudinally along the cross groove 14, driving the milling cutter mounting component 4 to move laterally or longitudinally. When the milling cutter mounting component 4 moves laterally, the milling cutter 44 moves in the X-axis direction and mills. When the milling cutter mounting component 4 moves longitudinally, the milling cutter 44 moves in the Y-axis direction and mills, thereby expanding the processing range of the milling cutter 44. Combination Figure 2 In one specific embodiment, the transmission assembly 2 includes: a universal coupling 21, a transmission shaft 22, and a first bearing 23; the upper end of the universal coupling 21 is fixedly connected to the machine tool spindle 19, and the lower end of the universal coupling 21 is fixedly connected to the transmission shaft 22; the transmission shaft 22 is rotatably disposed in the through hole 15.

[0034] In this embodiment, the universal coupling 21 is composed of universal joints at both ends and a telescopic hydraulic rod in the middle. The universal coupling 21 is disposed in the transmission cavity 13. The upper universal joint is fixedly connected to the machine tool spindle 19, and the lower universal joint is fixedly connected to the transmission shaft 22. The transmission shaft 22 is cylindrical and passes through the through hole 15 in the center of the slider 12. The transmission shaft 22 is connected to the inner wall of the through hole 15 through the first bearing 23. The outer ring of the first bearing 23 is interference-fitted with the through hole 15, and the inner ring is transition-fitted with the transmission shaft 22. Multiple sets of the first bearing 23 are arranged at intervals along the length of the transmission shaft 22 to increase the stability of the transmission shaft 22 when rotating.

[0035] In practical use, the universal coupling 21 rotates through the power of the machine tool spindle 19, and the transmission shaft 22 transmits power to rotate within the through hole 15. When the slider 12 moves horizontally, the transmission shaft 22 moves synchronously, and the hydraulic telescopic rod of the universal coupling 21 is stretched or compressed. That is, when the slider 12 moves away from the center of the cross groove 14, the hydraulic telescopic rod is stretched, and when the slider 12 moves closer to the center of the cross groove 14, the hydraulic telescopic rod is compressed, thus ensuring the stability of the transmission.

[0036] Combination Figure 3 and Figure 4 In a specific embodiment, the driving assembly includes: a first motor track 31, a second motor track 32, a first motor 33, a second motor 34, a first threaded rod 35, and a second threaded rod 36. The first motor track 31 is horizontally fixedly disposed on the upper end of the mating plate 11 and is disposed on the edge of the mating plate 11. The second motor track 32 is horizontally fixedly disposed on the upper end of the mating plate 11 and is disposed on the edge of the mating plate 11, and is perpendicular to the first motor track 31. The first motor 33 is slidably disposed on the first motor track 31. The second motor 34 is slidably disposed on the second motor track 32. One end of the first threaded rod 35 is fixedly disposed on the output end of the first motor 33, and the first threaded rod 35 engages with the internal thread of the upper protrusion of the slider 12. One end of the second threaded rod 36 is fixedly disposed on the output end of the second motor 34, and the second threaded rod 36 engages with the internal thread of the lower protrusion of the slider 12.

[0037] In this embodiment, both the first motor track 31 and the second motor track 32 are concave elongated strips, fixedly mounted in the track groove on the upper surface of the mating plate 11. A sliding block 37 is fixedly mounted at the bottom of the first motor 33. The sliding block 37 is cuboid in shape, and its width is the same as the width of the first motor track 31. A sliding block 37 is fixedly mounted at the bottom of the second motor 34. The sliding block 37 is cuboid in shape, and its width is the same as the width of the second motor track 32. The height of the sliding block 37 below the first motor 33 is higher than that below the second motor 34. A support block 38 is provided at the end of the first threaded rod 35, and a support block 38 is provided at the end of the second threaded rod 36. The support block 38 has a groove at its contact position with the mating plate 11. It should be noted that the support block 38 connected to the first threaded rod 35 is higher than the support block 38 connected to the second threaded rod 36. It should be noted that both the first motor 33 and the second motor 34 are electrically connected to an external power supply. This connection method is common knowledge to those skilled in the art, and therefore will not be described in detail in this embodiment.

[0038] In practical use, when the first motor 33 is started, the first motor 33 drives the first threaded rod 35 to rotate, causing the slider 12 to move along the direction of the first threaded rod 35 on the cross groove 14. At the same time, the slider 12 drives the second motor 34 and the second threaded rod 36 to slide along the second motor track 32. When the second motor 34 is started, the second motor 34 drives the second threaded rod 36 to rotate, causing the slider 12 to move along the direction of the second threaded rod 36 on the cross groove 14. At the same time, the slider 12 drives the first motor 33 and the first threaded rod 35 to slide along the first motor track 31.

[0039] Combination Figure 3 In a specific embodiment, the milling cutter mounting component 4 includes: a tool mounting housing 41, a horizontal bevel gear 42, a vertical bevel gear 43, and a milling cutter 44. The upper end of the tool mounting housing 41 is fixedly connected to the lower end of the slider 12 by a fastener. A mating groove 16 is provided in the horizontal axis direction of the tool mounting housing 41. The horizontal bevel gear 42 is fixedly disposed at the bottom end of the transmission shaft 22. The vertical bevel gear 43 meshes with the horizontal bevel gear 42. The milling cutter 44 passes through the tool mounting housing 41 and is fixed to the vertical bevel gear 43. The milling cutter 44 is rotatably disposed on the tool mounting housing 41 through the mating groove 16. A second bearing 45 is fixedly disposed in the mating groove 16. The inner circumference of the second bearing 45 is fixedly connected to the milling cutter 44.

[0040] In this embodiment, the tool mounting housing 41 is rectangular with a hollow interior. A through hole 15 is provided at the center of the upper surface for the drive shaft 22 to drive. Bolt holes 18 are provided around the through hole 15, so that the tool mounting housing 41 and the slider 12 are fixedly connected by bolts 18. The drive shaft 22 passes through the through hole 15 into the tool mounting housing 41. A horizontal bevel gear 42 is fixedly provided at the end of the drive shaft 22. A vertical bevel gear 43 meshes with the horizontal bevel gear 42. A mating groove 16 is provided at one end of the tool mounting housing 41 along the axial direction of the vertical bevel gear 43, and a circular groove is provided at the other end. The end of the milling cutter 44 is fitted into the circular groove. The milling cutter 44 is fixedly provided on the inner hole of the vertical bevel gear 43. The tip of the milling cutter 44 is exposed outside the tool mounting housing 41 through the second bearing 45 on the mating groove 16.

[0041] In practical use, when the drive shaft 22 drives the horizontal bevel gear 42 to rotate along the vertical axis, the horizontal bevel gear 42 drives the vertical bevel gear 43 to rotate along the horizontal axis. The rotation of the vertical bevel gear 43 drives the milling cutter 44 to rotate, thereby realizing the milling cutter 44's processing of the material. When the slider 12 slides in the cross groove 14, it drives the tool mounting housing 41 to move, thereby driving the milling cutter 44 to move horizontally, realizing the angle milling head's processing in multiple directions.

[0042] The implementation principle of this application is as follows: the rotation of the machine tool spindle 19 drives the universal coupling 21 to rotate, the rotation of the universal coupling 21 drives the transmission shaft 22 to rotate, thereby driving the horizontal bevel gear 42 at the lower end of the transmission shaft 22 to rotate, the horizontal bevel gear 42 drives the vertical bevel gear 43 to rotate along the horizontal axis, driving the milling cutter 44 to rotate along the horizontal axis, thereby realizing the processing of materials; when the first motor 33 starts, it drives the first threaded rod 35 to rotate, thereby driving the slider 12 meshing with the first threaded rod 35 to move along the cross groove 14 on the mating plate 11 longitudinally. The movement of the milling cutter mounting part 4 fixed at the lower end of the slider 12 causes it to move along the Y-axis. When the second motor 34 starts, it drives the second threaded rod 36 to rotate, thereby causing the slider 12, which meshes with the second threaded rod 36, to move laterally along the cross groove 14 on the mating plate 11. This causes the milling cutter mounting part 4 fixed at the lower end of the slider 12 to move along the X-axis. Since the machine tool spindle 19 can move in the Z-axis direction, the angle milling head can move in the X, Y, and Z-axis directions, enabling the angle milling head to perform machining in multiple directions.

[0043] When the motor of the drive component rotates, it drives the threaded rod to rotate, thereby causing the slider 12, which meshes with the threaded rod, to move horizontally along the cross groove 14 on the mating plate 11. This causes the milling cutter mounting part 4, which is fixed to the lower end of the slider 12, to move horizontally, thus enabling the angle milling head to process in multiple directions.

[0044] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A CNC machine tool angle milling head, characterized in that, include: A connecting housing (1) is fixedly connected to the machine tool at its upper end, and a transmission cavity (13) is vertically arranged inside the connecting housing (1). Transmission assembly (2), which is rotatably disposed in the transmission cavity (13), and is fixedly connected to the machine tool spindle (19); A mating plate (11) is fixedly connected to the lower part of the connecting housing (1). The mating plate (11) is horizontally provided with a cross groove (14), which is connected to the transmission cavity (13). The slider (12) is slidably disposed in the cross groove (14), and a through hole (15) is vertically disposed in the center of the slider (12). A driving component is disposed on the mating plate (11) and drives the slider (12) to move. The milling cutter mounting component (4) is fixedly disposed at the lower end of the slider (12).

2. A CNC machine tool angle milling head according to claim 1, characterized in that: The transmission assembly (2) includes: A drive shaft (22) is rotatably disposed within the through hole (15); Universal coupling (21), the upper end of which is fixedly connected to the machine tool spindle (19), and the lower end of which is fixedly connected to the transmission shaft (22).

3. A CNC machine tool angle milling head according to claim 1, characterized in that: One end of the slider (12) is disposed in the transmission cavity (13), and the slider (12) is provided with threads on its periphery within the transmission cavity (13). The driving assembly includes: The first motor track (31) is horizontally fixed on the upper end of the mating plate (11) and is located on the edge of the mating plate (11). The second motor track (32) is horizontally fixed on the upper end of the mating plate (11), and the second motor track (32) is located on the edge of the mating plate (11). The second motor track (32) is perpendicular to the first motor track (31). The first motor (33) is slidably mounted on the first motor track (31). The second motor (34) is slidably mounted on the second motor track (32); The first threaded rod (35) has one end fixedly disposed at the output end of the first motor (33), and the first threaded rod (35) engages with the thread; The second threaded rod (36) has one end fixedly disposed at the output end of the second motor (34), and the second threaded rod (36) engages with the thread; The first motor track (31) is higher than the second motor track (32).

4. A CNC machine tool angle milling head according to claim 2, characterized in that: The milling cutter mounting component (4) includes: The upper end of the tool mounting housing (41) is fixedly connected to the lower end of the slider (12) by a fastener, and the tool mounting housing (41) is provided with a mating groove (16) in the horizontal axis direction. A horizontal bevel gear (42) is fixedly mounted on the bottom end of the transmission shaft (22); A vertical bevel gear (43) meshes with the horizontal bevel gear (42); The milling cutter (44) is inserted into the tool mounting housing (41) and fixed to the vertical bevel gear (43). The milling cutter (44) is rotatably mounted on the tool mounting housing (41) through the mating groove (16).

5. A CNC machine tool angle milling head according to claim 2, characterized in that: The drive shaft (22) is rotatably connected to the inner wall of the through hole (15) via the first bearing (23).

6. A CNC machine tool angle milling head according to claim 4, characterized in that: A second bearing (45) is fixedly installed inside the mating groove (16), and the inner circumference of the second bearing (45) is fixedly connected to the milling cutter (44).

7. A CNC machine tool angle milling head according to claim 1, characterized in that: A square protrusion plate (17) is fixedly provided on the periphery of the slider (12), and the square protrusion plate (17) is slidably disposed in the cross groove (14).

8. A CNC machine tool angle milling head according to claim 1, characterized in that: The fastener is a bolt (18).

9. A CNC machine tool angle milling head according to claim 2, characterized in that: The universal coupling (21) is a telescopic universal coupling (21).

10. A CNC machine tool angle milling head according to claim 5, characterized in that: The first bearing (23) is provided in multiple sets at intervals along the length direction of the transmission shaft (22).

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