A power turret for CNC machine tools

Abstract

The present invention discloses a power turret for a numerically controlled machine tool, and relates to the technical field of numerically controlled machine tools. The power turret for a numerically controlled machine tool comprises a turret base, and also comprises a cutter disc body, wherein the cutter disc body is mounted at one end of the turret base, and a cutter disc drive sleeve is provided between the cutter disc body and the turret base, and the cutter disc drive sleeve is used for rotating the cutter disc body at any angle on the turret base. The present invention drives the power rod to retract and extend through a telescopic member, that is, the cutter shaft and the connecting claw are disengaged, and then drives the power rod to rotate a fixed angle through a rotating member, so that the connecting claw can be accurately connected to the adjacent cutter shaft. This separate transmission mode of the cutter disc body and the internal power rod can not only switch the tool faster, but also will not interfere with the free rotation angle of the cutter disc body, thereby facilitating the cutter disc body to adjust the feed angle of the tool, and improving the flexibility of the tool feed.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, in particular to a power turret for numerically controlled machine tools. Background Art

[0002] A power turret is a machine with its own power source that can independently provide main motion and feed motion to the tool. Power turret technology is one of the core technologies in turning-milling compound machine tools. Turning-milling compound machine tools can realize the processing of complex parts on the same machine tool. All processing such as turning, drilling, tapping, end cutting, side grooving, side milling, angle drilling, curve milling, etc. are completed on a turning-milling compound CNC machine tool, which greatly reduces the production process and accumulated tolerances. The power turrets equipped with turning-milling compound CNC machine tools generally include disc turrets, square turrets and crown turrets, and disc turrets are the most widely used.

[0003] The Chinese utility model patent with publication number CN215919115U discloses a new servo-powered turret structure that can automatically exchange tools. This device can install more tool holders and realize complex parts and automated processing. There is no need to shut down the machine tool to replace the tool holder. Manual position change is changed to automatic change from the outside of the machine tool, which reduces the labor intensity and danger of the operator, improves the efficiency of machine tool use, and reduces the time for part processing.

[0004] At present, most of the power turrets on the market need to disengage the shaft connector groups inside the tool holder and the tool holder power transmission shaft from the tool holder transmission shaft before the tool disc rotates to the next tool number when changing tools. Then the tool disc can be rotated to the next tool number position. After the tool disc rotates to the next tool number position, the shaft connector groups inside the tool holder are meshed with each other and the tool holder power transmission shaft is meshed with the tool holder transmission shaft to achieve tool change. In this process, in order to improve the accuracy of tool change, it is usually necessary to rotate the tool disc at an equal angle, which greatly reduces the flexibility of the tool. Moreover, when a turret with this structure is used on a three-axis machine tool, the feed angle is often unable to be controlled, resulting in a decrease in processing flexibility. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a power turret for a CNC machine tool, which solves the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a power tool turret for a CNC machine tool, comprising a tool turret base and a tool disc body, wherein the tool disc body is installed at one end of the tool turret base, and a tool disc drive sleeve is provided between the tool disc body and the tool turret base, and the tool disc drive sleeve is used for the tool disc body to rotate at any angle on the tool turret base; a tool shaft, wherein the tool shafts are evenly arranged on the side walls of the tool disc body, and the tool shafts are rotatably connected to the side walls of the tool disc body, and the angle between two adjacent tool shafts is a fixed angle; a first drive member, wherein the first drive member is arranged in the tool turret base, and the first drive member is used to drive the tool The disc body and the cutter shaft rotate, and the rotation of the cutter disc body is used to change the orientation of the cutter shaft and the feed angle of the effective cutter, and the rotation of the cutter shaft is used to drive the rotation of the effective cutter; a power rod, the power rod is located in the cutter disc body, and one end of the power rod is provided with a connecting claw that can be engaged with any cutter shaft, a telescopic part for driving the power rod to extend and retract is provided in the cutter disc body, and a rotating part for driving the power rod to rotate is provided in the cutter disc body; the telescopic part drives the power rod to retract and extend once, and the rotation angle of the power rod around the center of the cutter disc body is the fixed angle, so that the connecting claw switches between two adjacent cutter shafts.

[0007] Furthermore, the power rod includes a turntable rotatably installed in the cutter disc body, a turntable drive sleeve sleeved in the cutter disc drive sleeve is fixed on one side of the turntable, and a first support seat is fixed on the upper surface of the turntable, and a second support seat is fixed on the upper surface of the turntable opposite to the first support seat, a first sliding sleeve is rotatably installed inside the first support seat, a second sliding sleeve is fixed on the second support seat, a second sliding rod is slidably connected in the second sliding sleeve, and an end of the second sliding rod close to the first sliding sleeve is rotatably connected to a second sliding rod slidably connected to the first sliding sleeve A slide rod, the other end of the first slide rod is fixedly connected to the connecting claw; the telescopic part includes a wheel drive shaft rotatably installed inside the turntable drive sleeve, the upper end of the wheel drive shaft passes through the turntable and is fixed with an eccentric wheel, and the lower surface of the second slide rod is provided with a limiting groove adapted to the eccentric wheel; the rotating part includes a knife shaft drive sleeve sleeved between the wheel drive shaft and the turntable drive sleeve, the upper end of the knife shaft drive sleeve passes through the turntable and is installed with a second bevel gear, and the first slide sleeve is fixedly sleeved on the outer side with a first bevel gear meshing with the second bevel gear.

[0008] Furthermore, one end of the second slide bar passes through the second support seat and is installed with a limit plate, and a return spring is installed on the outer side of the second slide bar between the limit plate and the second support seat.

[0009] Furthermore, the first driving member includes a power servo motor fixed on the turret base, a hydraulic telescopic cylinder is installed at the output end of the power servo motor, a second friction disc is installed at the telescopic end of the hydraulic telescopic cylinder, a reduction gear box is installed on the turret base, the output end of the reduction gear box is fixedly connected to the cutter disc drive sleeve, and a power input shaft is installed at the input end of the reduction gear box, one end of the power input shaft passes through the reduction gear box and is installed with a first friction disc adapted to the second friction disc, and the distance between the first friction disc and the second friction disc is a clutch gap; a power gear is provided on the outer fixed sleeve of the hydraulic telescopic cylinder, one end of the cutter shaft drive sleeve extends into the turret base and is installed with a driven gear, and the driven gear is meshed with the power gear.

[0010] Furthermore, it also includes a second driving member, which is used to drive the turntable and the eccentric wheel disc to rotate; the second driving member includes an angle servo motor fixed to the outside of the turret base, and a rotating shaft is fixed to the output end of the angle servo motor. A first linkage gear is provided in a fixed sleeve on the outside of the rotating shaft, and one end of the wheel disc drive shaft extends into the turret base and is installed with a wheel disc gear, and the wheel disc gear is meshed with the first linkage gear; a second linkage gear is also fixed on the outside of the rotating shaft, and one end of the turntable drive shaft sleeve extends into the inside of the turret base and is installed with a turntable gear, and the turntable gear is meshed with the second linkage gear.

[0011] Furthermore, a plug hole is provided inside the power input shaft, a guide rod is slidably installed inside the plug hole, and the other end of the guide rod passes through the first friction disk and is fixedly connected to the second friction disk.

[0012] Furthermore, a cross boss is provided at one end of the connecting claw, a ball bearing is mounted on the surface of the cross boss, and one end of the knife shaft extends into the knife disc body and is provided with a claw groove engaged with the cross boss.

[0013] Furthermore, a mounting groove is provided on the outer side of the cutter disc body at the position of the cutter shaft, and a cutter seat is detachably fixed on the mounting groove.

[0014] Furthermore, the wheel drive shaft and the inner wall of the cutter shaft drive sleeve are rotatably connected via a first bearing, the cutter shaft drive sleeve and the inner wall of the turntable drive sleeve are rotatably connected via a second bearing, and the turntable drive sleeve and the inner wall of the cutter disc drive sleeve are rotatably connected via a third bearing.

[0015] Furthermore, a cover plate is installed on the outside of the cutter disc body, and a sealing gasket is provided at the connection between the cover plate and the cutter disc body.

[0016] The present invention has the following beneficial effects:

[0017] (1) The power turret for the CNC machine tool drives the power rod to retract and extend through the telescopic part, that is, the tool shaft and the connecting claw are clutched, and then the power rod is driven to rotate a fixed angle through the rotating part, so that the connecting claw and the adjacent tool shaft can be accurately connected. This separate transmission method of the tool disc body and the internal power rod can not only switch the tool faster, but also will not interfere with the free rotation angle of the tool disc body, which is conducive to the tool disc body adjusting the tool feed angle and improving the flexibility of the tool feed.

[0018] (2) The power tool turret for the CNC machine tool drives the turntable gear to rotate through the second linkage gear, thereby causing the turntable drive shaft sleeve to rotate, and further causing the turntable to drive the power rod to rotate. This is a fixed angle between the two tool shafts, and then the power switching of the tool shaft can be realized. During this process, the first linkage gear drives the wheel gear to rotate, thereby causing the wheel drive shaft to drive the eccentric wheel to rotate one circle, and further causing the telescopic part to complete a contraction-extension cycle, thereby controlling the power switching of the tool shaft, making the tool holder switching more stable and rapid.

[0019] (3) The power tool turret for the CNC machine tool can drive the tool shaft to rotate the sleeve through the meshing between the power gear and the driven gear, and then drive the second bevel gear to rotate. Through the meshing between the second bevel gear and the first bevel gear, the first sleeve can drive the first slide rod to rotate, and the first slide rod can further drive the connecting claw to rotate, so that the tool shaft can rotate.

[0020] (4) The power turret for the CNC machine tool makes the second friction disc contact with the first friction disc through the hydraulic telescopic cylinder. At this time, the power source output by the power servo motor is transmitted to the second friction disc by the hydraulic telescopic cylinder, and the rotational force is further transmitted to the inside of the power input shaft. The speed of the power input shaft is decelerated by the reduction gear box 7 and output by the cutter disc drive sleeve, so as to better control the rotation angle of the cutter disc drive sleeve, and further control the rotation angle of the cutter disc body, which is conducive to the precise adjustment of the effective tool feed angle on the cutter disc body.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4It is a schematic diagram of the structure inside the turret base of the present invention;

[0026] Figure 5 It is a schematic diagram of the installation structure of the turntable in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the cutter head main body in the present invention;

[0028] Figure 7 This is a diagram showing the internal structure of the cutter head body of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the power rod in the present invention;

[0030] Fig. 9 For the present invention Figure 8 Schematic diagram of the internal structure;

[0031] Fig.10 It is an exploded view of the cutter head body in the present invention;

[0032] Fig.11 This is an exploded view of the second sliding rod when it is installed in the present invention.

[0033] In the figure, 1, turret base; 2, cutter body; 3, mounting slot; 4, cutter seat; 5, power servo motor; 6, angle servo motor; 7, reduction gear box; 8, hydraulic telescopic cylinder; 9, rotating shaft; 10, second linkage gear; 11, first linkage gear; 12, power gear; 13, turntable; 14, first support seat; 15, first slide sleeve; 16, second support seat; 17, second slide sleeve; 18, first slide rod; 19, connecting claw; 20, cutter shaft; 21, claw groove; 22, limit groove; 23, limit plate; 24, return spring; 25, eccentric wheel; 26, cutter disc drive sleeve; 27, turntable drive sleeve; 28, cutter shaft drive sleeve; 29, wheel disc drive shaft; 30, power input shaft; 31, first friction disc; 32, second friction disc; 33, turntable gear; 34, driven gear; 35, wheel disc gear; 36, first bevel gear; 37, second slide rod; 38, second bevel gear. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] See also Figure 1 - Fig.11 The embodiment of the present invention provides a technical solution: a power turret for a CNC machine tool, comprising a turret base 1, and also comprising a cutter disc body 2, wherein the cross section of the cutter disc body 2 is preferably a regular octagon, the cutter disc body 2 is mounted on one end of the turret base 1, and a cutter disc drive sleeve 26 is provided between the cutter disc body 2 and the turret base 1, and the cutter disc drive sleeve 26 is used for the cutter disc body 2 to rotate at any angle on the turret base 1, so as to facilitate the adjustment of the tool on the turret body 2 at any angle.

[0037] In addition, the power tool turret for CNC machine tools provided in this embodiment also includes a tool shaft 20, which is evenly arranged on the side wall of the tool disc body 2. Preferably, the number of tool shafts 20 is eight, and the tool shafts 20 are rotatably connected to the side wall of the tool disc body 2. The angle between two adjacent tool shafts 20 is a fixed angle, and this fixed angle is preferably 45°.

[0038] In order to realize the rotation of the cutter shaft 20 and the cutter disc body 2, the present embodiment also includes a first driving member, which is arranged in the turret base 1, and the first driving member is used to drive the cutter disc body 2 and the cutter shaft 20 to rotate. The rotation of the cutter disc body 2 is used to change the orientation and feed angle of the cutter shaft 20 of the effective tool, and the rotation of the cutter shaft 20 is used to drive the rotation of the effective tool, wherein the effective tool is a working tool.

[0039] In addition, in order to realize the transmission switching of the cutter shaft 20, the present embodiment also includes a power rod, which is located in the cutter disc body 2, and one end of the power rod is provided with a connecting claw 19 that can be engaged with any cutter shaft 20. A telescopic part for driving the power rod to extend and retract is provided in the cutter disc body 2, and a rotating part for driving the power rod to rotate is provided in the cutter disc body 2. The telescopic part drives the power rod to retract and extend once, and the power rod rotates around the center of the cutter disc body 2 at a fixed angle so that the connecting claw 19 can switch between two adjacent cutter shafts 20.

[0040] When the tool feed angle needs to be adjusted, the turret body 2 is rotated through the first driving member to control the feed angle of the effective tool. During this process, the connecting claw 19 is always connected to the tool shaft 20. Therefore, when the transmission of the tool shaft 20 is switched, it is only necessary to rotate the connecting claw 19 to the above-mentioned fixed angle and connect it to the next tool shaft 20. For this reason, the present embodiment first drives the power rod to retract through the telescopic member, that is, the tool shaft 20 is separated from the connecting claw 19, and then the telescopic member pushes the connecting claw 19 to connect the connecting claw 19 to the adjacent tool shaft 20. During this process, the power rod is driven to rotate a fixed angle through the rotating member, so that the connecting claw 19 can be accurately connected to the adjacent tool shaft 20. This separate transmission method of the cutter head body 2 and the internal power rod can not only switch the tool faster, but also will not interfere with the free rotation angle of the cutter head body 2, thereby facilitating the cutter head body 2 to adjust the tool feed angle.

[0041] like Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, the power rod includes a turntable 13 rotatably installed in the cutter disc body 2, and a turntable drive sleeve 27 sleeved in the cutter disc drive sleeve 26 is fixed on one side of the turntable 13, and the turntable drive sleeve 27 can drive the turntable 13 to rotate, and a first support seat 14 is fixed on the upper surface of the turntable 13, and a second support seat 16 is fixed on the upper surface of the turntable 13 on the opposite side of the first support seat 14, and a line between the first support seat 14 and the second support seat 16 passes through the center of the turntable 13, and a first sleeve 15 is rotatably installed inside the first support seat 14, a second sleeve 17 is fixed on the second support seat 16, and a second slide rod 37 is slidably connected in the second sleeve 17, and one end of the second slide rod 37 close to the first sleeve 15 is rotatably connected to the first slide rod 18 slidably connected to the first sleeve 15, and the other end of the first slide rod 18 is fixed to the connecting claw 19.

[0042] The telescopic part includes a wheel drive shaft 29 rotatably installed inside the turntable drive shaft sleeve 27. The upper end of the wheel drive shaft 29 passes through the turntable 13 and is fixed with an eccentric wheel 25. The wheel drive shaft 29 can drive the eccentric wheel 25 to rotate. A limiting groove 22 adapted to the eccentric wheel 25 is provided on the lower surface of the second slide bar 37. The eccentric wheel 25 is driven to rotate by the wheel drive shaft 29, and the eccentric wheel 25 is connected to the limiting groove 22, so that the second slide bar 37 slides on the second slide sleeve 17, thereby driving the first slide bar 18 to slide inside the first slide sleeve 15, and then controlling the connection claw 19 to engage and disengage with the knife shaft 20.

[0043] The above-mentioned rotating part includes a knife shaft driving sleeve 28 which is sleeved between the wheel drive shaft 29 and the turntable drive sleeve 27. The upper end of the knife shaft driving sleeve 28 passes through the turntable 13 and is installed with a second bevel gear 38. The first sleeve 15 is fixedly sleeved on the outer side with a first bevel gear 36 which meshes with the second bevel gear 38. The knife shaft driving sleeve 28 drives the second bevel gear 38 to rotate. Through the meshing between the second bevel gear 38 and the first bevel gear 36, since the first slide bar 18 and the second slide bar 37 are rotationally connected, the first sleeve 15 can drive the first slide bar 18 to rotate, and further the first slide bar 18 can drive the connecting claw 19 to rotate, and the knife shaft 20 can be rotated by the engagement between the connecting claw 19 and the knife shaft 20.

[0044] like Figure 2 , Figure 3 , Figure 5 , Figure 8 , Fig. 9 and Fig.11 As shown, in order to better realize the reset of the second slide bar 37 after sliding, a limit plate 23 is installed on one end of the second slide bar 37 through the second support seat 16, and a reset spring 24 is installed on the outer side of the second slide bar 37 between the limit plate 23 and the second support seat 16. The elastic force in the reset spring 24 makes the second slide bar 37 move toward the first support seat 14, and then the second slide bar 37 can be reset synchronously after the eccentric wheel disc 25 is reset, which is beneficial to the next power switching of the knife shaft 20.

[0045] like Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9As shown, the first driving member includes a power servo motor 5 fixed on the turret base 1, a hydraulic telescopic cylinder 8 is installed at the output end of the power servo motor 5, and a second friction disc 32 is installed at the telescopic end of the hydraulic telescopic cylinder 8. A reduction gear box 7 is installed on the turret base 1, and the output end of the reduction gear box 7 is fixedly connected to the cutter disc drive shaft sleeve 26 to better control the rotation angle of the cutter disc drive shaft sleeve 26, and further control the rotation angle of the cutter disc body 2, which is beneficial to the adjustment of the effective tool feed angle on the cutter disc body 2, and a power input shaft 30 is installed at the input end of the reduction gear box 7, one end of the power input shaft 30 passes through the reduction gear box 7 and is installed with a first friction disc 31 adapted to the second friction disc 32, and the first friction The distance between the disc 31 and the second friction disc 32 is a clutch gap. The second friction disc 32 is driven to move by the hydraulic telescopic cylinder 8, so that the second friction disc 32 contacts the first friction disc 31. At this time, the power source output by the power servo motor 5 is transmitted to the second friction disc 32 by the hydraulic telescopic cylinder 8. Through the cooperation between the second friction disc 32 and the first friction disc 31, the rotational force is transmitted to the inside of the power input shaft 30, and the speed of the power input shaft 30 is reduced by the reduction gear box 7 and output by the cutter disc drive sleeve 26, so as to better control the rotation angle of the cutter disc drive sleeve 26, and further control the rotation angle of the cutter disc body 2, thereby facilitating the adjustment of the effective tool feed angle on the cutter disc body 2.

[0046] In order to realize the driving of the knife shaft 20, a power gear 12 is fixedly sleeved on the outer side of the hydraulic telescopic cylinder 8, one end of the knife shaft driving sleeve 28 extends into the turret base 1 and is installed with a driven gear 34, the driven gear 34 is meshed with the power gear 12, and the driven gear 34 is meshed with the power gear 12, so that the driven gear 34 can drive the knife shaft driving sleeve 28 to rotate, and the knife shaft driving sleeve 28 drives the second bevel gear 38 to rotate, and the meshing between the second bevel gear 38 and the first bevel gear 36, because the first slide bar 18 and the second slide bar 37 are rotatably connected, the first slide sleeve 15 can drive the first slide bar 18 to rotate, and the first slide bar 18 further drives the connecting claw 19 to rotate, and the knife shaft 20 is rotated by the engagement between the connecting claw 19 and the knife shaft 20.

[0047] like Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9As shown, in order to better drive the turntable 13 and the eccentric wheel disc 25 to rotate, the power turret for CNC machine tools provided in this embodiment also includes a second driving component, and the second driving component includes an angle servo motor 6 fixed to the outside of the turret base 1, and a rotating shaft 9 is fixed to the output end of the angle servo motor 6. A first linkage gear 11 is fixedly sleeved on the outside of the rotating shaft 9. One end of the wheel drive shaft 29 extends into the turret base 1 and is installed with a wheel gear 35, and the wheel gear 35 is meshed with the first linkage gear 11.

[0048] A second linkage gear 10 is fixedly sleeved on the outer side of the rotating shaft 9 . One end of the turntable driving sleeve 27 extends to the inside of the turret base 1 and is installed with a turntable gear 33 . The turntable gear 33 is meshed with the second linkage gear 10 .

[0049] In this embodiment, the ratio of the number of teeth on the wheel gear 35 and the first linkage gear 11 is preferably 1:2, and the ratio of the number of teeth on the second linkage gear 10 and the turntable gear 33 is 1:4. When the angle servo motor 6 drives the rotating shaft 9 to rotate 180°, the second linkage gear 10 can drive the turntable gear 33 to rotate 45°, so that the turntable gear 33 drives the turntable drive sleeve 27 to rotate 45°, and further drives the turntable 13 to rotate the power rod 45°. This is a fixed angle between the two knife shafts 20, and then the power switching of the knife shaft 20 can be realized. During this process, the first linkage gear 11 drives the wheel gear 35 to rotate 360°, so that the wheel drive shaft 29 drives the eccentric wheel 25 to rotate 360°, and further enables the telescopic member to complete a contraction-extension cycle, thereby controlling the power switching of the knife shaft 20.

[0050] like Figure 4 As shown, in order to better enable the first friction disk 31 and the second friction disk 32 to be accurately docked, a socket is opened inside the power input shaft 30, and a guide rod is slidably installed inside the socket. The other end of the guide rod passes through the first friction disk 31 and is fixedly connected to the second friction disk 32. The second friction disk 32 drives the guide rod to slide inside the socket, thereby providing axial support for the docking of the first friction disk 31 and the second friction disk 32, so as to ensure that the docking of the first friction disk 31 and the second friction disk 32 is more stable, which is further beneficial to the rotational force on the power servo motor 5 being transmitted to the power input shaft 30 through the first friction disk 31 and the second friction disk 32.

[0051] like Figure 8 , Fig. 9 and Fig.11As shown, in order to avoid damage to the knife shaft 20 caused by the friction when the connecting claw 19 is connected to the knife shaft 20, a cross boss is provided at one end of the connecting claw 19, and a ball is installed on the surface of the cross boss. One end of the knife shaft 20 extends into the cutter disc body 2 and is provided with a claw groove 21 that is engaged with the cross boss. Through the setting of the ball, the friction between the knife shaft 20 and the connecting claw 19 is greatly reduced, thereby reducing the damage to the knife shaft 20. Under the action of the ball, the rotation angle generated by the connecting claw 19 during the contact with the knife shaft 20 will not cause the knife shaft 20 to rotate significantly, thereby increasing the convenience for the rapid docking of the connecting claw 19 and the knife shaft 20.

[0052] like Figure 1 and Figure 2 As shown, in order to install different types of cutting tools, a mounting groove 3 is provided on the outer side of the cutter disc body 2 at the position of the cutter shaft 20, and a cutter seat 4 is detachably fixed on the mounting groove 3, and a cutting tool is mounted on the cutter seat 4.

[0053] like Figure 8 and Fig. 9 As shown, in order to improve the stability of the wheel drive shaft 29, the knife shaft drive sleeve 28, the turntable drive sleeve 27 and the knife disc drive sleeve 26 during rotation and reduce the vibration of the shaft system, the wheel drive shaft 29 and the inner wall of the knife shaft drive sleeve 28 are rotatably connected via a first bearing, the knife shaft drive sleeve 28 and the inner wall of the turntable drive sleeve 27 are rotatably connected via a second bearing, and the turntable drive sleeve 27 and the inner wall of the knife disc drive sleeve 26 are rotatably connected via a third bearing.

[0054] like Figure 1 and Fig.11 As shown, in order to prevent dust, impurities, etc. from entering the cutter disc body 2, a cover plate is installed on the outside of the cutter disc body 2, and a sealing gasket is provided at the connection between the cover plate and the cutter disc body 2 to improve the sealing effect of the cutter disc body 2.

[0055] When in use (working), the rotating shaft 9 is driven to rotate by the angle servo motor 6, and the second linkage gear 10 can further drive the turntable gear 33 to rotate, so that the turntable gear 33 drives the turntable drive sleeve 27 to rotate, and further the turntable 13 drives the power rod to rotate to a fixed angle between the two knife shafts 20, and then the power switching of the knife shaft 20 can be realized. During this process, the first linkage gear 11 drives the wheel gear 35 to rotate, so that the wheel drive shaft 29 drives the eccentric wheel 25 to rotate one circle, and further the telescopic part completes a contraction-extension cycle, thereby controlling the power switching of the knife shaft 20.

[0056] Start the power servo motor 5, so that the hydraulic cylinder 8 drives the power gear 12 to rotate, and through the meshing between the power gear 12 and the driven gear 34, the driven gear 34 can drive the knife shaft driving sleeve 28 to rotate, and the knife shaft driving sleeve 28 drives the second bevel gear 38 to rotate, and through the meshing between the second bevel gear 38 and the first bevel gear 36, since the first slide bar 18 and the second slide bar 37 are rotatably connected, the first sleeve 15 can drive the first slide bar 18 to rotate, and further the first slide bar 18 drives the connecting claw 19 to rotate, and the knife shaft 20 is rotated by the engagement between the connecting claw 19 and the knife shaft 20.

[0057] The second friction disc 32 is driven to move by the hydraulic telescopic cylinder 8 so that the second friction disc 32 contacts the first friction disc 31. At this time, the power source output by the power servo motor 5 is transmitted to the second friction disc 32 by the hydraulic telescopic cylinder 8. Through the cooperation between the second friction disc 32 and the first friction disc 31, the rotational force is transmitted to the inside of the power input shaft 30. The speed of the power input shaft 30 is reduced by the reduction gear box 7 and output by the cutter disc drive sleeve 26, so as to better control the rotation angle of the cutter disc drive sleeve 26, and further control the rotation angle of the cutter disc body 2, which is beneficial to the adjustment of the effective tool feed angle on the cutter disc body 2.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A power turret for a numerically controlled machine tool, comprising a turret base (1), characterized in that: Also includes: A cutter disc body (2), wherein the cutter disc body (2) is mounted on one end of a turret base (1), and a cutter disc drive sleeve (26) is provided between the cutter disc body (2) and the turret base (1), wherein the cutter disc drive sleeve (26) is used to drive the cutter disc body (2) to rotate at any angle on the turret base (1); The knife shafts (20) are evenly arranged on the side wall of the knife disc body (2), and the knife shafts (20) are rotatably connected to the side wall of the knife disc body (2), and the angle between two adjacent knife shafts (20) is a fixed angle; A first driving member, the first driving member is arranged in the turret base (1), and the first driving member is used to drive the cutter disc body (2) and the cutter shaft (20) to rotate, the rotation of the cutter disc body (2) is used to change the orientation and feed angle of the cutter shaft (20) of the effective cutter, and the rotation of the cutter shaft (20) is used to drive the rotation of the effective cutter; A power rod, the power rod is located in the cutter head body (2), and one end of the power rod is provided with a connecting claw (19) capable of engaging with any cutter shaft (20), a telescopic member for driving the power rod to extend and retract is provided in the cutter head body (2), and a rotating member for driving the power rod to rotate is provided in the cutter head body (2); The telescopic member drives the power rod to retract and extend once, and the power rod rotates around the center of the cutter head body (2) at the fixed angle, so that the connecting claw (19) switches between two adjacent cutter shafts (20); The power rod comprises a turntable (13) rotatably mounted in the cutter disc body (2), a turntable drive sleeve (27) sleeved in the cutter disc drive sleeve (26) being fixed on one side of the turntable (13), a first support seat (14) being fixed on the upper surface of the turntable (13), and a second support seat (16) being fixed on the upper surface of the turntable (13) on the opposite side of the first support seat (14), a first sliding sleeve (15) being rotatably mounted inside the first support seat (14), a second sliding sleeve (17) being fixed on the second support seat (16), a second sliding rod (37) being slidably connected inside the second sliding sleeve (17), an end of the second sliding rod (37) close to the first sliding sleeve (15) being rotatably connected to a first sliding rod (18) slidably connected to the first sliding sleeve (15), and the other end of the first sliding rod (18) being fixedly connected to a connecting claw (19); The telescopic member comprises a wheel drive shaft (29) rotatably mounted inside a turntable drive shaft sleeve (27); the upper end of the wheel drive shaft (29) passes through the turntable (13) and is fixed with an eccentric wheel disc (25); and a limiting groove (22) adapted to the eccentric wheel disc (25) is formed on the lower surface of the second slide rod (37); The rotating member comprises a knife shaft drive sleeve (28) sleeved between a wheel drive shaft (29) and a turntable drive sleeve (27); the upper end of the knife shaft drive sleeve (28) passes through the turntable (13) and is provided with a second bevel gear (38); and the first sliding sleeve (15) is fixedly sleeved outside with a first bevel gear (36) meshing with the second bevel gear (38).

2. The power turret for a CNC machine tool according to claim 1, characterized in that: One end of the second slide bar (37) passes through the second support seat (16) and is installed with a limit plate (23), and a return spring (24) is installed on the outer side of the second slide bar (37) between the limit plate (23) and the second support seat (16).

3. The power turret for a CNC machine tool according to claim 2, characterized in that: The first driving member comprises a power servo motor (5) fixed on the turret base (1); a hydraulic telescopic cylinder (8) is installed at the output end of the power servo motor (5); a second friction disc (32) is installed at the telescopic end of the hydraulic telescopic cylinder (8); a reduction gear box (7) is installed on the turret base (1); the output end of the reduction gear box (7) is fixedly connected to the cutter disc drive shaft sleeve (26); and a power input shaft (30) is installed at the input end of the reduction gear box (7); one end of the power input shaft (30) passes through the reduction gear box (7) and is installed with a first friction disc (31) adapted to the second friction disc (32); the distance between the first friction disc (31) and the second friction disc (32) is a clutch clearance; A power gear (12) is disposed on the outer fixed sleeve of the hydraulic telescopic cylinder (8); one end of the knife shaft driving sleeve (28) extends into the turret base (1) and is provided with a driven gear (34); the driven gear (34) is meshed with the power gear (12).

4. The power turret for a CNC machine tool according to claim 3, characterized in that: It also includes a second driving member, which is used to drive the rotating disk (13) and the eccentric wheel disk (25) to rotate; The second driving member comprises an angle servo motor (6) fixed to the outside of the turret base (1), a rotating shaft (9) is fixed to the output end of the angle servo motor (6), a first linkage gear (11) is fixedly sleeved on the outside of the rotating shaft (9), one end of the wheel drive shaft (29) extends into the turret base (1) and is provided with a wheel gear (35), and the wheel gear (35) is meshed with the first linkage gear (11); A second linkage gear (10) is fixedly sleeved on the outer side of the rotating shaft (9); one end of the turntable drive sleeve (27) extends to the inside of the turret base (1) and is provided with a turntable gear (33); the turntable gear (33) is meshed with the second linkage gear (10).

5. The power turret for a CNC machine tool according to claim 3, characterized in that: A plug hole is provided inside the power input shaft (30), a guide rod is slidably installed inside the plug hole, and the other end of the guide rod passes through the first friction disk (31) and is fixedly connected to the second friction disk (32).

6. A power turret for a CNC machine tool according to any one of claims 1 to 5, characterized in that: One end of the connecting claw (19) is provided with a cross boss, and a ball bearing is installed on the surface of the cross boss. One end of the knife shaft (20) extends into the knife disc body (2) and is provided with a claw groove (21) engaged with the cross boss.

7. The power turret for a CNC machine tool according to claim 6, characterized in that: The outer side of the cutter disc body (2) is provided with a mounting groove (3) at the position of the cutter shaft (20), and a cutter seat (4) is detachably fixed on the mounting groove (3).

8. The power turret for a CNC machine tool according to claim 4, characterized in that: The wheel drive shaft (29) is rotatably connected to the inner wall of the blade shaft drive sleeve (28) via a first bearing, the blade shaft drive sleeve (28) is rotatably connected to the inner wall of the turntable drive sleeve (27) via a second bearing, and the turntable drive sleeve (27) is rotatably connected to the inner wall of the blade disc drive sleeve (26) via a third bearing.

9. The power turret for a CNC machine tool according to claim 6, characterized in that: A cover plate is installed on the outside of the cutter disc body (2), and a sealing gasket is provided at the connection between the cover plate and the cutter disc body (2).

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