A turning-milling combined numerical control lathe

Abstract

The utility model relates to a kind of turning-milling combined numerical control lathe, including saddle, and the inclined plane and horizontal plane are arranged on saddle, the left side of the horizontal plane is provided with first spindle mechanism, the right side of the inclined plane is provided with second spindle mechanism, and Z-axis movement device of control second spindle mechanism moves along Z-axis direction;The right side of the horizontal plane is provided with second tool tower, and three-dimensional movement mechanism of control second tool tower moves along three-axis direction relative to first spindle mechanism or second spindle mechanism, the left side of the inclined plane is provided with first tool tower, and two-dimensional movement mechanism of control first tool tower moves along Z-axis direction and X-axis direction relative to first spindle mechanism or second spindle mechanism;This numerical control lathe can be independently moved and process workpiece by two groups of main shaft and tool tower, and the second tool tower in it can be inserted Y-axis structure, so that first tool tower and second tool tower can simultaneously process workpiece on first main shaft, realize turning-milling combined operation.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathes, specifically a CNC lathe with milling and turning capabilities. Background Technology

[0002] Current CNC lathe structures, as shown in Chinese patent document (application number 201821990857.2), include a spindle structure and a turret structure. In this prior art, the workpiece is fixed to the spindle structure during machining. After single-head machining of the workpiece's front side using the turret structure, a manual or robotic arm needs to enter the CNC lathe to flip and fix the workpiece on the spindle before performing secondary machining on the back side. This structure results in low machining efficiency and a limited range of machining operations. Therefore, the applicant has improved and perfected the CNC lathe structure to solve the above problems and provide a suitable option for consumers. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned existing problems and provide a simple and reasonable CNC lathe with milling and turning capabilities.

[0004] A CNC lathe with milling and turning capabilities includes a saddle with an inclined surface and a horizontal surface. A first spindle mechanism is arranged on the left side of the horizontal surface, and a second spindle mechanism opposite to the first spindle mechanism and a Z-axis motion device for controlling the movement of the second spindle mechanism along the Z-axis are arranged on the right side of the inclined surface. A second turret is arranged on the right side of the horizontal surface and a three-dimensional motion mechanism for controlling the movement of the second turret relative to the first spindle mechanism or the second spindle mechanism along three axes are arranged. A first turret is arranged on the left side of the inclined surface and a two-dimensional motion mechanism for controlling the movement of the first turret relative to the first spindle mechanism or the second spindle mechanism along the Z-axis and X-axis is arranged.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, both the first and second turrets include a drive shaft that rotates around the Z-axis and a cutter head fixed to the drive shaft. The two cutter heads are located on the lower or upper side of the first or second spindle mechanism relative to the workpiece for feeding or returning along the X-axis direction.

[0007] As a further embodiment, the first spindle mechanism includes a fixed base, a first spindle box, and a first rotating spindle. The fixed base is fixed on the saddle and has a connecting inclined surface at its top. The first spindle box is fixed on the connecting inclined surface and extends outward above the inclined surface. The first rotating spindle is fixed at the protruding end of the first spindle box.

[0008] As a further embodiment, the second spindle mechanism includes a sliding base, a second spindle box, and a second rotating spindle. The sliding base is slidably connected to the inclined surface via a Z-axis motion device. The second spindle box is fixed to the top surface of the sliding base. The second rotating spindle is mounted on the second spindle box and is coaxially aligned with the first rotating spindle.

[0009] As a further embodiment, the two-dimensional motion mechanism includes a sliding base, a connecting slide plate, a Z-axis motion device, and an X-axis motion device. The sliding base is slidably connected to the inclined surface via the Z-axis motion device, and the connecting slide plate is slidably connected to the sliding base via the X-axis motion device. The first turret is tilted and fixed on the connecting slide plate.

[0010] As a further embodiment, the three-dimensional motion mechanism includes a sliding base, a support saddle, and a connecting slide plate. The connecting slide plate is slidably connected to a horizontal surface via a Z-axis motion device. The support saddle is slidably connected to the top surface of the sliding base via a Y-axis motion device. The support saddle has an inclined mounting surface. The connecting slide plate is slidably connected to the inclined mounting surface via an X-axis motion device. The second turret is tilted and fixed on the connecting slide plate.

[0011] As a further solution, the Z-axis motion device mainly includes:

[0012] The first fixed slide rail is fixed on the saddle.

[0013] The first movable slider is fixed on the corresponding sliding base and is slidably connected to the first fixed slide rail;

[0014] The first transmission lead screw is fixed on the saddle by a lead screw seat;

[0015] The first bearing is threadedly connected to the first transmission screw and fixedly connected to the corresponding sliding base;

[0016] The first motor is fixed on the saddle, and its output shaft is drivenly connected to one end of the first transmission screw.

[0017] As a further embodiment, the X-axis motion device mainly includes:

[0018] The second fixed slide rail is fixed on the connecting slide plate;

[0019] The second movable slider is fixed on the sliding base and is slidably connected to the second fixed slide rail;

[0020] The second transmission lead screw is fixed on the sliding base by a lead screw seat, and one end of the second transmission lead screw is connected to a driven wheel;

[0021] The second bearing is threadedly connected to the second transmission screw and fixedly connected to the connecting slide plate;

[0022] The second motor is fixed on the sliding base, and its output shaft is connected to the drive wheel. A flexible transmission belt connects the drive wheel and the driven wheel.

[0023] As a further embodiment, the Y-axis motion device mainly includes:

[0024] The third fixed slide rail is fixed on the support saddle;

[0025] The third movable slider is fixed on the top surface of the sliding base and is slidably connected to the third fixed slide rail;

[0026] The third transmission lead screw is fixed on the inclined mounting surface by a lead screw seat;

[0027] The third bearing is threadedly connected to the third transmission screw and fixedly connected to the support saddle.

[0028] The third motor is fixed on the support saddle, and its output shaft is connected to one end of the third transmission lead screw.

[0029] The beneficial effects of this utility model are as follows:

[0030] This utility model discloses a CNC lathe with milling and turning capabilities. This CNC lathe can independently move and process workpieces through two sets of spindles and tool turrets. The second tool turret can virtually interpolate the Y-axis structure, so that the first and second tool turrets can simultaneously process the workpiece on the first spindle, realizing milling and turning operations. Moreover, after the second spindle is connected to the workpiece on the first spindle, it can continue to process the back of the workpiece, eliminating the need for manual unloading and material changing processes, and improving the processing efficiency of the CNC lathe. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the left side structure of the CNC lathe in this utility model.

[0033] Figure 3 This is a schematic diagram of the right side structure of the CNC lathe in this utility model. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] See Figures 1 to 3 As shown, a CNC lathe with milling and turning capabilities includes a saddle 1, on which an inclined surface A and a horizontal surface B are provided. A first spindle mechanism 2 is provided on the left side of the horizontal surface B, and a second spindle mechanism 3 opposite to the first spindle mechanism 2 is provided on the right side of the inclined surface A, along with a Z-axis motion device 41 for controlling the movement of the second spindle mechanism 3 along the Z-axis. A second turret 5 is provided on the right side of the horizontal surface B, along with a three-dimensional motion mechanism 6 for controlling the movement of the second turret 5 relative to the first spindle mechanism 2 or the second spindle mechanism 3 along three axes. A first turret 7 is provided on the left side of the inclined surface A, along with a two-dimensional motion mechanism 8 for controlling the movement of the first turret 7 relative to the first spindle mechanism 2 or the second spindle mechanism 3 along the Z-axis and X-axis.

[0036] This CNC lathe can move and process workpieces independently through two sets of spindles and tool turrets. The second tool turret can virtually insert the Y-axis structure, so that the first tool turret 7 and the second tool turret 5 can also process the workpiece on the first spindle at the same time, realizing milling and turning compound operation. Moreover, after the second spindle is connected to the workpiece of the first spindle, it can continue to process the back of the workpiece, eliminating the need for manual unloading and material changing, and improving the processing efficiency of the CNC lathe.

[0037] The milling and turning operation of a CNC lathe includes the following steps:

[0038] Processing step 1: The first spindle mechanism 2 fixes the long shaft type workpiece, and the two-dimensional motion mechanism 8 drives the first turret 7 to mill the head of the workpiece.

[0039] Processing step two: If necessary, the three-dimensional motion mechanism 6 drives the second turret 5 and the first turret 7 to simultaneously mill the workpiece head on the first spindle mechanism 2.

[0040] Processing step 3: After the head of the workpiece is milled by the first spindle mechanism 2, the second spindle mechanism 3 connects to the workpiece of the first spindle mechanism 2. Then, the second turret 5 is responsible for cutting off the workpiece and transferring the cut workpiece to the second spindle mechanism 3. The first spindle mechanism 2 fixes the new workpiece. At this time, the first turret 7 mills the head of the new workpiece, while the second turret 5 mills the tail of the old workpiece.

[0041] Processing step four: The finished workpiece is removed from the second spindle mechanism 3 by manual labor or a robotic arm, and then reconnected to the workpiece of the first spindle mechanism 2. The above steps are repeated during this process.

[0042] Both the first turret 7 and the second turret 5 include a drive shaft 71 that rotates around the Z-axis and a tool disc 72 fixed to the drive shaft (the reference numerals in the figure show the first turret 7 as an example);

[0043] The two tool discs 72 of the first tool turret 7 are located on the lower side of the first spindle mechanism 2 or the second spindle mechanism 3 along the X-axis direction, relative to the workpiece for feeding or returning.

[0044] The two tool discs 72 of the second tool turret 5 are located on the upper side of the first spindle mechanism 2 or the second spindle mechanism 3 along the X-axis direction, relative to the workpiece for feeding or returning. This structure can avoid interference between the upper and lower tools of the first tool turret 7 and the second tool turret 5.

[0045] The first spindle mechanism 2 includes a fixed base 21, a first spindle box 22, and a first rotating spindle 23. The fixed base 21 is fixed on the saddle 1 and has a connecting inclined surface at its top. The first spindle box 22 is fixed on the connecting inclined surface and extends outward to above the inclined surface A. The first rotating spindle 23 is fixed at the protruding end of the first spindle box 22.

[0046] The second spindle mechanism 3 includes a sliding base 9, a second spindle box 31, and a second rotating spindle 32. The sliding base 9 is slidably connected to the inclined surface A via a Z-axis motion device 41. The second spindle box 31 is fixed to the top surface of the sliding base 9. The second rotating spindle 32 is mounted on the second spindle box 31, and the second rotating spindle 32 is coaxially arranged opposite to the first rotating spindle 23.

[0047] The two-dimensional motion mechanism 8 includes a sliding base 9, a connecting slide plate 10, a Z-axis motion device 41, and an X-axis motion device. The sliding base 9 is slidably connected to the inclined surface A through the Z-axis motion device 41, and the connecting slide plate 10 is slidably connected to the sliding base 9 through the X-axis motion device. The first turret 7 is tilted and fixed on the connecting slide plate 10.

[0048] The three-dimensional motion mechanism 6 includes a sliding base 9, a support saddle 11, and a connecting slide plate 10. The connecting slide plate 10 is slidably connected to the horizontal plane B via a Z-axis motion device 41. The support saddle 11 is slidably connected to the top surface of the sliding base 9 via a Y-axis motion device. The support saddle 11 is provided with an inclined mounting surface 111. The connecting slide plate 10 is slidably connected to the inclined mounting surface 111 via an X-axis motion device. The second turret 5 is inclinedly fixed on the connecting slide plate 10.

[0049] The Z-axis motion devices 41 described above have the same structure and mainly include:

[0050] The first fixed slide rail 411 is fixed on the saddle 1;

[0051] The first movable slider 412 is fixed on the corresponding sliding base 9, and the first movable slider 412 is slidably connected to the first fixed slide rail 411.

[0052] The first transmission lead screw is fixed on the saddle 1 by a lead screw seat;

[0053] The first bearing is threadedly connected to the first transmission screw and fixedly connected to the corresponding sliding base 9;

[0054] The first motor is fixed on the saddle 1, and its output shaft is drivenly connected to one end of the first transmission screw.

[0055] The X-axis motion device of the two-dimensional motion mechanism 8 and the X-axis motion device of the three-dimensional motion mechanism 6 have basically the same structure. Taking the X-axis motion device of the two-dimensional motion mechanism 8 as an example, it mainly includes:

[0056] The second fixed slide rail 421 is fixed on the connecting slide plate 10 (the second fixed slide rail 421 of the three-dimensional motion mechanism 6 is fixed on the inclined mounting surface 111).

[0057] The second movable slider 422 is fixed on the sliding base 9 and is slidably connected to the second fixed slide rail 421.

[0058] The second transmission lead screw is fixed on the sliding base 9 by a lead screw seat, and one end of the second transmission lead screw is connected to a driven wheel (the second transmission lead screw of the three-dimensional motion mechanism 6 is fixed on the inclined mounting surface 111, and one end of the second transmission lead screw is directly connected to the output end of the second motor).

[0059] The second bearing is threadedly connected to the second transmission screw and fixedly connected to the connecting slide plate 10;

[0060] The second motor is fixed on the sliding base 9, and its output shaft is connected to the drive wheel. A flexible transmission belt connects the drive wheel and the driven wheel (the second motor of the three-dimensional motion mechanism 6 is fixed on the top of the support saddle 11).

[0061] The Y-axis motion device mainly includes;

[0062] The third fixed slide rail 431 is fixed on the support saddle 11;

[0063] The third movable slider 432 is fixed on the top surface of the sliding base 9, and the third movable slider 432 is slidably connected to the third fixed slide rail 431;

[0064] The third transmission lead screw is fixed on the inclined mounting surface 111 by a lead screw seat;

[0065] The third bearing is threadedly connected to the third transmission screw and fixedly connected to the support saddle 11.

[0066] The third motor is fixed on the support saddle 11, and its output shaft is driven to one end of the third transmission lead screw.

[0067] Furthermore, the aforementioned lead screw, bearing, and motor structure are existing technologies in the lathe field, and therefore are not specifically marked in the accompanying drawings.

[0068] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A CNC lathe with milling and turning capabilities, comprising a saddle (1), wherein the saddle (1) is provided with an inclined surface (A) and a horizontal surface (B), characterized in that: A first spindle mechanism (2) is provided on the left side of the horizontal plane (B), and a second spindle mechanism (3) opposite to the first spindle mechanism (2) and a Z-axis motion device (41) for controlling the second spindle mechanism (3) to move along the Z-axis are provided on the right side of the inclined plane (A); a second turret (5) and a three-dimensional motion mechanism (6) for controlling the second turret (5) to move relative to the first spindle mechanism (2) or the second spindle mechanism (3) along three axes are provided on the right side of the horizontal plane (B); a first turret (7) and a two-dimensional motion mechanism (8) for controlling the first turret (7) to move relative to the first spindle mechanism (2) or the second spindle mechanism (3) along the Z-axis and X-axis are provided on the left side of the inclined plane (A).

2. The CNC lathe with milling and turning capabilities according to claim 1, characterized in that: The first turret (7) and the second turret (5) both include a drive shaft (71) that rotates around the Z-axis and a cutter head (72) fixed on the drive shaft. The two cutter heads (72) are located on the lower or upper side of the first spindle mechanism (2) or the second spindle mechanism (3) along the X-axis direction, relative to the workpiece for feeding or returning.

3. A CNC lathe with milling and turning capabilities according to claim 1, characterized in that: The first spindle mechanism (2) includes a fixed seat (21), a first spindle box (22) and a first rotating spindle (23). The fixed seat (21) is fixed on the saddle (1) and has a connecting inclined surface at the top. The first spindle box (22) is fixed on the connecting inclined surface and extends outward to above the inclined surface (A). The first rotating spindle (23) is fixed at the protruding end of the first spindle box (22).

4. A CNC lathe with milling and turning capabilities according to claim 3, characterized in that: The second spindle mechanism (3) includes a sliding base (9), a second spindle box (31), and a second rotating spindle (32). The sliding base (9) is slidably connected to the inclined surface (A) via a Z-axis motion device (41). The second spindle box (31) is fixed on the top surface of the sliding base (9). The second rotating spindle (32) is mounted on the second spindle box (31), and the second rotating spindle (32) is coaxially arranged opposite to the first rotating spindle (23).

5. A CNC lathe with milling and turning capabilities according to claim 1, characterized in that: The two-dimensional motion mechanism (8) includes a sliding base (9), a connecting slide plate (10), a Z-axis motion device (41), and an X-axis motion device. The sliding base (9) is slidably connected to the inclined surface (A) through the Z-axis motion device (41). The connecting slide plate (10) is slidably connected to the sliding base (9) through the X-axis motion device. The first turret (7) is tilted and fixed on the connecting slide plate (10).

6. A CNC lathe with milling and turning capabilities according to claim 1, characterized in that: The three-dimensional motion mechanism (6) includes a sliding base (9), a support saddle (11), and a connecting slide plate (10). The connecting slide plate (10) is slidably connected to the horizontal plane (B) via a Z-axis motion device (41). The support saddle (11) is slidably connected to the top surface of the sliding base (9) via a Y-axis motion device. The support saddle (11) is provided with an inclined mounting surface (111). The connecting slide plate (10) is slidably connected to the inclined mounting surface (111) via an X-axis motion device. The second turret (5) is inclinedly fixed on the connecting slide plate (10).

7. A CNC lathe with milling and turning capabilities according to any one of claims 4-6, characterized in that: The Z-axis motion device (41) mainly includes: The first fixed slide rail (411) is fixed on the saddle (1); The first movable slider (412) is fixed on the corresponding sliding base (9), and the first movable slider (412) is slidably connected to the first fixed slide rail (411); The first transmission lead screw is fixed to the saddle (1) by a lead screw seat; The first bearing is threadedly connected to the first transmission screw and fixedly connected to the corresponding sliding base (9); The first motor is fixed on the saddle (1) and its output shaft is connected to one end of the first transmission screw.

8. A CNC lathe with milling and turning capabilities according to claim 5, characterized in that: The X-axis motion device mainly includes: The second fixed slide rail (421) is fixed on the connecting slide plate (10); The second movable slider (422) is fixed on the sliding base (9) and is slidably connected to the second fixed slide rail (421); The second transmission screw is fixed on the sliding base (9) by a screw seat, and one end of the second transmission screw is connected to a driven wheel; The second bearing is threadedly connected to the second transmission screw and fixedly connected to the connecting slide plate (10); The second motor is fixed on the sliding base (9) and its output shaft is connected to the driving wheel. A flexible transmission belt connects the driving wheel and the driven wheel.

9. A CNC lathe with milling and turning capabilities according to claim 6, characterized in that: The Y-axis motion device mainly includes; The third fixed slide rail (431) is fixed on the support saddle (11); The third movable slider (432) is fixed on the top surface of the sliding base (9) and is slidably connected to the third fixed slide rail (431); The third transmission lead screw is fixed on the inclined mounting surface (111) by a lead screw seat; The third bearing is threadedly connected to the third transmission screw and fixedly connected to the support saddle (11); The third motor is fixed on the support saddle (11), and its output shaft is connected to one end of the third transmission screw.

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