A six-axis CNC lathe with a differential-compensated Y-axis

Abstract

The present invention discloses a six-axis numerically controlled lathe with a differential compensation Y-axis, which includes a base, supporting feet, and the supporting feet arranged symmetrically in pairs are fixedly installed on the bottom surface of the base; support columns, two symmetrically arranged support columns penetrate through the top surface of the base, and the support columns are slidably connected to the top surface of the base; a support plate, the support plate is fixedly installed on the top surface of the support column; a lathe housing, the lathe housing is fixedly installed on the top surface of the support plate. This six-axis numerically controlled lathe with a differential compensation Y-axis adds the differential compensation function of the Y-axis, and complex-shaped parts can be processed with only one clamping. At the same time, the cutting time and non-cutting time for processing complex shapes are greatly reduced, and the productivity is greatly improved. At the same time, it is convenient to adjust the height, making it suitable for different people to use, improving the applicability, and facilitating movement, making the movement of the machine tool more convenient and flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled lathes, and particularly to a six-axis numerically controlled lathe with a differential Y-axis. Background Art

[0002] A numerically controlled lathe is a high-precision and high-efficiency automatic machine tool. It automatically processes the machined parts according to the pre-programmed processing program. The machine tool has a wide range of processing technological performances, can process complex workpieces such as straight cylindrical, inclined cylindrical, circular arcs, and various threads, grooves, worms, etc., has various compensation functions such as linear interpolation and circular arc interpolation, and has played a good economic effect in the mass production of complex parts;

[0003] However, only the X-axis and Z-axis are available on the currently used numerically controlled lathes, which results in longer cutting time and non-cutting time when processing workpieces with complex shapes, and lower work efficiency. At the same time, the existing numerically controlled lathes cannot be adjusted in height, so it is difficult to be applicable to people of different heights to operate the machine tool, and the applicability is poor. In addition, most of the existing numerically controlled lathes are large and heavy, difficult to move, and have poor performance. In view of this, a six-axis numerically controlled lathe with a differential Y-axis is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a six-axis numerically controlled lathe with a differential Y-axis to solve the problems of low work efficiency, inconvenient height adjustment and movement of the existing numerically controlled lathes mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A six-axis numerically controlled lathe with a differential Y-axis, including a base,

[0006] Foot supports, the pairwise symmetrically arranged foot supports are fixedly installed on the bottom surface of the base;

[0007] Support columns, two symmetrically arranged support columns penetrate through the top surface of the base, and the support columns are slidably connected to the top surface of the base;

[0008] Support plates, the support plates are fixedly installed on the top surfaces of the support columns;

[0009] Lathe housing, the lathe housing is fixedly installed on the top surface of the support plate;

[0010] Processing mechanism, the processing mechanism is arranged on the top surface of the support plate;

[0011] Rotating mechanism, the rotating mechanism is arranged on the inner top surface of the base;

[0012] Transmission mechanism, the transmission mechanism is connected to the rotating mechanism;

[0013] A height adjustment mechanism, which is connected to the transmission mechanism;

[0014] A moving mechanism, which is connected to the height adjustment mechanism.

[0015] Adopting the above technical solution is convenient for improving the working efficiency of workpiece processing, and at the same time is convenient for height adjustment and movement.

[0016] As a preferred technical solution of the present invention, the processing mechanism includes:

[0017] A bed body, which is fixedly installed on the top surface of the support plate, and the bed body is located inside the lathe housing;

[0018] A main shaft, which is installed at the left end of the top surface of the bed body;

[0019] A tailstock, which is installed at the right end of the top surface of the bed body;

[0020] A Z-axis servo motor, which is installed on the top surface of the bed body;

[0021] A Z-axis ball screw, which is key-connected to the shaft end of the Z-axis servo motor;

[0022] A bracket, which is slidably connected to the top surface of the bed body, and the bracket and the Z-axis ball screw form a threaded connection mechanism;

[0023] An X-axis servo motor, which is installed on the bracket;

[0024] A Y-axis servo motor, which is installed on the bracket;

[0025] A tool rest, which is installed on the bracket.

[0026] Adopting the above technical solution is convenient for performing a Y-axis interpolation during workpiece processing by adding the interpolation function of the Y-axis, so as to ensure high-precision processing.

[0027] As a preferred technical solution of the present invention, the rotation mechanism includes:

[0028] A driving motor, which is highly installed on the inner top surface of the base;

[0029] A driving screw rod, one end of which is key-connected to the shaft end of the driving motor, and the other end of which is bearing-connected to the inner wall surface of the base;

[0030] A rack, which is slidably connected to the inner top surface of the base, the driving screw rod passes through the rack, and the driving screw rod is threadedly connected to the rack;

[0031] Fixing plates, two of the fixing plates arranged symmetrically are fixedly installed on the inner top surface of the base;

[0032] A rotating shaft, the rotating shaft penetrates through the fixing plate, and the rotating shaft is connected to the fixing plate by a bearing;

[0033] A rotating gear, the rotating gear is fixedly sleeved on the surface of the rotating shaft, and the rotating gear is meshed and connected with the rack.

[0034] Adopting the above technical solution, it is convenient for the rack to drive the rotating shaft to rotate through the rotating gear when moving.

[0035] As a preferred technical solution of the present invention, the transmission mechanism includes:

[0036] Drive shafts, the tops of two of the drive shafts arranged symmetrically are connected to the inner top surface of the base by bearings;

[0037] Bevel gear sets, the bevel gear sets are installed at the bottom ends of the drive shafts, and the bevel gear sets are connected to the shaft ends of the rotating shafts;

[0038] A driving gear, the driving gear is fixedly sleeved on the surface of the drive shaft;

[0039] A driven gear, the driven gear is rotatably connected to the inner top surface of the base by a bearing, and the driven gear is meshed and connected with the driving gear.

[0040] Adopting the above technical solution, it is convenient for the rotating shaft to drive the drive shaft to rotate through the bevel gear set when rotating, so that the driving gear drives the driven gear to rotate.

[0041] As a preferred technical solution of the present invention, the tooth number ratio of the driving gear to the driven gear is 1:4.

[0042] Adopting the above technical solution, it is convenient for the driving gear to drive the driven gear to rotate more labor - saving.

[0043] As a preferred technical solution of the present invention, the height - adjusting mechanism includes:

[0044] An adjusting screw rod, the bottom end of the adjusting screw rod is connected to the inner bottom surface of the base by a bearing, and the top end of the adjusting screw rod is fixedly connected to the bottom surface of the driven gear;

[0045] A bearing plate, the bearing plate is slidably connected to the inner wall surface of the base, and the top surface of the bearing plate is fixedly connected to the bottom surface of the support column, and the adjusting screw rod penetrates through the bearing plate, and at the same time, the adjusting screw rod is threadedly connected to the bearing plate.

[0046] Adopting the above technical solution facilitates the realization of height adjustment.

[0047] As a preferred technical solution of the present invention, the moving mechanism includes:

[0048] A moving plate, which is slidably connected to the inner wall surface of the base, and the moving plate is located below the bearing plate;

[0049] A through hole, which is formed through the moving plate, and the adjusting screw rod passes through the through hole;

[0050] Sliding columns, the two symmetrically arranged sliding columns are fixedly and vertically installed on the bottom surface of the moving plate, and the sliding columns pass through the bottom surface of the base and are slidably connected to the bottom surface of the base.

[0051] Adopting the above technical solution facilitates the movement of the machine tool after the base is jacked up.

[0052] Compared with the prior art, the beneficial effects of the present invention are as follows: The six-axis CNC lathe with differential Y-axis adds the differential function of the Y-axis, and complex-shaped parts can be processed with only one clamping. At the same time, the cutting time and non-cutting time for complex-shaped processing are greatly reduced, and the productivity is greatly improved. At the same time, it is convenient to adjust the height, making it suitable for different people to use, improving the applicability, and facilitating movement, making the movement of the machine tool more convenient and flexible;

[0053] 1. By adding the differential function of the Y-axis, it is suitable for processing medium and small parts with complex shapes. At the same time, by adding the Y-axis, it provides more free up, down, left and right operability for the tool, so that various high-precision processing of complex shapes such as ultra-precision, multi-faceted processing, and circular arc interpolation can be performed, greatly improving the productivity;

[0054] 2. By starting the driving motor, the worm rotates. By rotating the gear, the rotating shaft rotates, so that the transmission shaft drives the driving gear to rotate through the action of the bevel gear set. Furthermore, the adjusting screw rod rotates through the action of the driven gear, and finally the bearing plate drives the support column and the support plate to move in the vertical direction, realizing the adjustment of the height of the lathe and making it suitable for people of different heights to operate;

[0055] 3. When the bearing plate continues to move downward, after the bearing plate touches the moving plate, under the continuous rotation of the adjusting screw rod, the sliding column touches the ground and jacks up the base. At this time, a forklift can be used to move the lathe, realizing the convenience and flexibility of the lathe movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a front view structural schematic diagram of the present invention;

[0057] Figure 2 Schematic diagram of the three-dimensional connection structure between the bed body and the main shaft of the present invention;

[0058] Figure 3 Schematic diagram of the structure of the Z-axis servo motor and the Z-axis ball screw of the present invention;

[0059] Figure 4 Schematic diagram of the partial connection structure of the front view section of the present invention;

[0060] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at position A in;

[0061] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure at position B in;

[0062] Figure 7 Schematic diagram of the left side view section connection structure between the rack and the rotating gear of the present invention;

[0063] Figure 8 Schematic diagram of the structure of the bearing plate and the support column of the present invention.

[0064] In the figure: 1, base; 2, foot; 3, support column; 4, support plate; 5, lathe housing; 6, bed body; 7, main shaft; 8, tailstock; 9, Z-axis servo motor; 10, Z-axis ball screw; 11, bracket; 12, X-axis servo motor; 13, Y-axis servo motor; 14, tool rest; 15, drive motor; 16, drive screw; 17, fixing plate; 18, rotating shaft; 19, rotating gear; 20, transmission shaft; 21, bevel gear set; 22, driving gear; 23, driven gear; 24, adjusting screw; 25, bearing plate; 26, moving plate; 27, through hole; 28, sliding column; 29, rack. Detailed implementation manners

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0066] Please refer to Figure 1-8, Technical solution of the present invention: A six-axis CNC lathe with differential compensation Y-axis, including a base 1, support feet 2, support columns 3, a support plate 4, a lathe housing 5, a bed 6, a main shaft 7, a tailstock 8, a Z-axis servo motor 9, a Z-axis ball screw 10, a carriage 11, an X-axis servo motor 12, a Y-axis servo motor 13, a tool rest 14, a driving motor 15, a driving screw 16, a fixing plate 17, a rotating shaft 18, a rotating gear 19, a transmission shaft 20, a bevel gear set 21, a driving gear 22, a driven gear 23, an adjusting screw 24, a bearing plate 25, a moving plate 26, a through hole 27, a sliding column 28 and a rack 29. The support feet 2 are symmetrically arranged in pairs and fixedly installed on the bottom surface of the base 1. The support columns 3 are symmetrically arranged, and the two support columns 3 penetrate through the top surface of the base 1 and are slidably connected to the top surface of the base 1. The support plate 4 is fixedly installed on the top surface of the support column 3. The lathe housing 5 is fixedly installed on the top surface of the support plate 4. The processing mechanism is arranged on the top surface of the support plate 4. The rotating mechanism is arranged on the inner top surface of the base 1. The transmission mechanism is connected to the rotating mechanism. The height adjusting mechanism is connected to the transmission mechanism. The moving mechanism is connected to the height adjusting mechanism;

[0067] The bed 6 is fixedly installed on the top surface of the support plate 4 and is located inside the lathe housing 5. The main shaft 7 is installed at the left end of the top surface of the bed 6. The tailstock 8 is installed at the right end of the top surface of the bed 6. The Z-axis servo motor 9 is installed on the top surface of the bed 6. The Z-axis ball screw 10 is key-connected to the shaft end of the Z-axis servo motor 9. The carriage 11 is slidably connected to the top surface of the bed 6 and forms a threaded connection mechanism with the Z-axis ball screw 10. The X-axis servo motor 12 is installed on the carriage 11. The Y-axis servo motor 13 is installed on the carriage 11. The tool rest 14 is installed on the carriage 11;

[0068] The driving motor 15 is installed at a high position on the inner top surface of the base 1. One end of the driving screw 16 is key-connected to the shaft end of the driving motor 15, and the other end of the driving screw 16 is bearing-connected to the inner wall surface of the base 1. The rack 29 is slidably connected to the inner top surface of the base 1, and the driving screw 16 penetrates through the rack 29 and is threadedly connected to the rack 29. The two symmetrically arranged fixing plates 17 are fixedly installed on the inner top surface of the base 1. The rotating shaft 18 penetrates through the fixing plate 17 and is bearing-connected to the fixing plate 17;

[0069] The rotating gear 19 is fixedly sleeved on the surface of the rotating shaft 18 and is meshed with the rack 29;

[0070] The transmission shaft 20, the tops of two symmetrically arranged transmission shafts 20 are connected to the inner top surface of the base 1 through bearings, the bevel gear set 21, the bevel gear set 21 is installed at the bottom end of the transmission shaft 20, and the bevel gear set 21 is connected to the shaft end of the rotating shaft 18. The driving gear 22, the driving gear 22 is fixedly sleeved on the surface of the transmission shaft 20. The driven gear 23, the driven gear 23 is rotatably connected to the inner top surface of the base 1 through a bearing, and the driven gear 23 is meshed and connected with the driving gear 22. The tooth number ratio of the driving gear 22 to the driven gear 23 is 1:4;

[0071] The adjusting screw rod 24, the bottom end of the adjusting screw rod 24 is connected to the inner bottom surface of the base 1 through a bearing, and the top end of the adjusting screw rod 24 is fixedly connected to the bottom surface of the driven gear 23. The bearing plate 25, the bearing plate 25 is slidably connected to the inner wall surface of the base 1, and the top surface of the bearing plate 25 is fixedly connected to the bottom surface of the support column 3. And the adjusting screw rod 24 penetrates through the bearing plate 25, and at the same time, the adjusting screw rod 24 is threadedly connected with the bearing plate 25;

[0072] The moving plate 26, the moving plate 26 is slidably connected to the inner wall surface of the base 1, and the moving plate 26 is located below the bearing plate 25. The through hole 27, the through hole 27 is formed through the moving plate 26, and the adjusting screw rod 24 penetrates through the through hole 27. The sliding columns 28, two symmetrically arranged sliding columns 28 are fixedly and vertically installed on the bottom surface of the moving plate 26, and the sliding columns 28 penetrate through the bottom surface of the base 1, and the sliding columns 28 are slidably connected to the bottom surface of the base 1.

[0073] Working principle: During the processing of parts, multi-axial movement adjustment can be carried out. By increasing the interpolation function of the Y axis, the machining accuracy of the workpiece is improved. At the same time, it provides more free up-and-down, left-and-right operability for the tool, so that various high-precision machining of complex shapes such as ultra-precision, multi-sided machining, and circular arc interpolation can be performed, greatly reducing the cutting time and non-cutting time of complex shape machining, and improving work efficiency;

[0074] When height adjustment is required, the driving motor 15 is started to make the driving screw rod 16 rotate, so that the rack 29 threadedly connected to the driving screw rod 16 moves, so that the rotating gear 19 meshed with the rack 29 drives the rotating shaft 18 to rotate. When the rotating shaft 18 rotates, the transmission shaft 20 is driven to rotate through the action of the bevel gear set 21, so that the transmission shaft 20 drives the driving gear 22 to rotate, so that the driven gear 23 meshed with the driving gear 22 rotates;

[0075] When the driven gear 23 rotates, it drives the adjusting lead screw 24 to rotate synchronously, causing the bearing plate 25 threadedly connected to the adjusting lead screw 24 to move in the vertical direction, so that the support column 3 drives the support plate 4 to move synchronously in the vertical direction, thereby realizing the adjustment of the height of the lathe to suit the operation of people of different heights;

[0076] When controlling the rotation of the adjusting lead screw 24 to continuously move the bearing plate 25 downward, after the bearing plate 25 touches the moving plate 26, when the adjusting lead screw 24 continues to rotate and the bearing plate 25 continues to move relative to the adjusting lead screw 24, under the resistance and limiting action of the moving plate 26, the sliding column 28 touches the ground and jacks up the base 1. At this time, the lathe can be moved by using a forklift, improving the convenience of lathe movement. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0077] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A six-axis CNC lathe with a differential compensation Y-axis, including a base (1), characterized in that, It further includes: Support feet (2), the support feet (2) which are symmetrically arranged in pairs are fixedly installed on the bottom surface of the base (1); Support columns (3), two symmetrically arranged support columns (3) penetrate through the top surface of the base (1), and the support columns (3) are slidably connected to the top surface of the base (1); Support plate (4), the support plate (4) is fixedly installed on the top surface of the support column (3); Lathe housing (5), the lathe housing (5) is fixedly installed on the top surface of the support plate (4); Processing mechanism, the processing mechanism is arranged on the top surface of the support plate (4); Rotating mechanism, the rotating mechanism is arranged on the inner top surface of the base (1); Transmission mechanism, the transmission mechanism is connected to the rotating mechanism; Height adjustment mechanism, the height adjustment mechanism is connected to the transmission mechanism; Moving mechanism, the moving mechanism is connected to the height adjustment mechanism; The rotating mechanism includes: Drive motor (15), the drive motor (15) is highly installed on the inner top surface of the base (1); Drive lead screw (16), one end of the drive lead screw (16) is key-connected to the shaft end of the drive motor (15), and the other end of the drive lead screw (16) is bearing-connected to the inner wall surface of the base (1); Rack (29), the rack (29) is slidably connected to the inner top surface of the base (1), and the drive lead screw (16) penetrates through the rack (29), and the drive lead screw (16) is threadedly connected to the rack (29); Fixed plates (17), two symmetrically arranged fixed plates (17) are fixedly installed on the inner top surface of the base (1); Rotating shaft (18), the rotating shaft (18) penetrates through the fixed plate (17), and the rotating shaft (18) is bearing-connected to the fixed plate (17); Rotating gear (19), the rotating gear (19) is fixedly sleeved on the surface of the rotating shaft (18), and the rotating gear (19) is meshed and connected to the rack (29); The transmission mechanism includes: Drive shafts (20), the tops of two symmetrically arranged drive shafts (20) are bearing-connected to the inner top surface of the base (1); Bevel gear set (21), the bevel gear set (21) is installed at the bottom end of the drive shaft (20), and the bevel gear set (21) is connected to the shaft end of the rotating shaft (18); Drive gear (22), the drive gear (22) is fixedly sleeved on the surface of the drive shaft (20); Driven gear (23), the driven gear (23) is rotatably connected to the inner top surface of the base (1) through a bearing, and the driven gear (23) is meshed and connected to the drive gear (22); The height adjustment mechanism includes: Adjusting lead screw (24), the bottom end of the adjusting lead screw (24) is bearing-connected to the inner bottom surface of the base (1), and the top end of the adjusting lead screw (24) is fixedly connected to the bottom surface of the driven gear (23); A bearing plate (25), the bearing plate (25) is slidably connected to the inner wall surface of the base (1), and the top surface of the bearing plate (25) is fixedly connected to the bottom surface of the support column (3), and the adjusting screw rod (24) passes through the bearing plate (25), and at the same time, the adjusting screw rod (24) is threadedly connected to the bearing plate (25).

2. The six-axis CNC lathe with differential-compensated Y-axis according to claim 1, wherein The processing mechanism includes: A bed body (6), the bed body (6) is fixedly installed on the top surface of the support plate (4), and the bed body (6) is located inside the lathe housing (5); A main shaft (7), the main shaft (7) is installed at the left end of the top surface of the bed body (6); A tailstock (8), the tailstock (8) is installed at the right end of the top surface of the bed body (6); A Z-axis servo motor (9), the Z-axis servo motor (9) is installed on the top surface of the bed body (6); A Z-axis ball screw (10), the Z-axis ball screw (10) is key-connected to the shaft end of the Z-axis servo motor (9); A carriage (11), the carriage (11) is slidably connected to the top surface of the bed body (6), and the carriage (11) and the Z-axis ball screw (10) form a threaded connection mechanism; An X-axis servo motor (12), the X-axis servo motor (12) is installed on the carriage (11); A Y-axis servo motor (13), the Y-axis servo motor (13) is installed on the carriage (11); A tool rest (14), the tool rest (14) is installed on the carriage (11).

3. A six-axis CNC lathe with a differential-compensated Y-axis according to claim 1, characterized in that, The tooth number ratio of the driving gear (22) to the driven gear (23) is 1:

4.

4. A six-axis CNC lathe with a differential compensation Y-axis according to claim 1, characterized in that, The moving mechanism includes: A moving plate (26), the moving plate (26) is slidably connected to the inner wall surface of the base (1), and the moving plate (26) is located below the bearing plate (25); A through hole (27), the through hole (27) is formed through the moving plate (26), and the adjusting screw rod (24) passes through the through hole (27); Slide columns (28), the slide columns (28) arranged symmetrically in pairs are fixedly and vertically installed on the bottom surface of the moving plate (26), and the slide columns (28) pass through the bottom surface of the base (1), and the slide columns (28) are slidably connected to the bottom surface of the base (1).

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