CN210789967U - Long shaft turning machine tool - Google Patents

Abstract

The utility model belongs to the technical field of major axis class parts machining equipment, concretely relates to major axis turning lathe. A long shaft turning machine tool comprises a machine body, wherein a main shaft used for driving a workpiece to rotate is arranged on the machine body, a first clamping device and a second clamping device used for clamping the workpiece are arranged on the machine body on one side of the main shaft, a first cutter tower and a second cutter tower are arranged on the machine body and distributed on the upper side and the lower side of the workpiece, the first clamping device, the second clamping device, the first cutter tower and the second cutter tower are matched with each other to process the workpiece in the rotating process of the main shaft workpiece, a rotating tailstock used for fixing a plurality of cutters and tips is movably arranged on the machine body, and the tips on the rotating tailstock are movably abutted to center holes of the workpiece. The utility model has the advantages of all processes of a major axis work piece can be accomplished to machining precision height, processing speed piece, a equipment.

Description

Long shaft turning machine tool

Technical Field

The utility model belongs to the technical field of major axis class parts machining equipment, concretely relates to major axis turning lathe.

Background

When a long shaft part is processed and produced, due to the processing particularity, rotary processing is generally adopted, one end of the long shaft is fixed, and the other end of the long shaft is suspended for processing, so that the long shaft can shake up and down or back and forth in a small amplitude in the processing process, and a cutter on a cutter tower can shake when being processed, so that the processed part has low precision and poor roughness; the long shaft class part of simultaneous processing needs to use many different machines to carry out different processes, for example: the long shaft is roughly turned to be smooth in surface, a center hole and the like are confirmed, and then the long shaft is clamped on a finish turning machine to be subjected to subsequent processing procedures.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a major axis turning lathe through increasing the sword tower, designs first clamping device and the first clamping device that can move about at will. When processing, first clamping device, first sword tower, the cooperation of second sword tower and main shaft, can carry out processes such as rough turning and finish turning to the major axis work piece, and utilize first sword tower and second sword tower to carry out two-sided processing to the major axis work piece simultaneously, when offsetting preceding single face processing, the sword tower is to the stress of the production of work piece, the clamping device who increases simultaneously can guarantee that the major axis work piece can not rock, solve the sword that shakes during processing, it is low to process out the part precision, the poor influence of roughness, lead to the problem of qualification rate decline, utilize a lathe can accomplish a major axis work piece's whole processes, can avoid many times clamping, influence the problem of precision.

The purpose of the utility model is realized like this:

the long shaft turning machine tool comprises a machine body, wherein a main shaft used for driving a workpiece to rotate is arranged on the machine body, a first clamping device and a second clamping device used for clamping the workpiece are arranged on the machine body on one side of the main shaft, a first cutter tower and a second cutter tower are arranged on the machine body and distributed on the upper side and the lower side of the workpiece, and the first clamping device, the second clamping device, the first cutter tower and the second cutter tower are matched with each other to process the workpiece in the rotating process of the main shaft workpiece.

Preferably, a rotating tailstock for fixing a plurality of cutters and apexes is movably arranged on the lathe bed, and the apexes on the rotating tailstock are movably abutted against the central hole of the workpiece.

Preferably, the first clamping device comprises a second ram, a second expansion plate is movably arranged in the second ram, a second driver is arranged at one end of the second ram, the second driver drives the second expansion plate to move, and a center frame used for clamping the workpiece is arranged at one end of the expansion plate.

Preferably, a telescopic tip device is arranged on the bed body.

Preferably, the center device comprises a first ram, a first expansion plate is movably arranged in the first ram, a first driver is arranged at one end of the first ram, the first driver drives the first expansion plate to move in the first ram, and a center and a power unit assembly for drilling a center hole are arranged at one end of the first expansion plate.

Preferably, a limiting plate is arranged on the first ram, a fixing groove is formed in the limiting plate, and a wedge block used for compensating a gap between the first expansion plate and the first ram is arranged in the fixing groove.

Preferably, the power unit component comprises a fixed seat, the fixed seat is detachably arranged at one end part of the expansion plate, one end of the fixed seat is movably provided with a drill bit, one end of the fixed seat is provided with a driver III, and the driver III drives the drill bit to rotate.

Preferably, the bottom of the ram II is provided with an oil storage tank, the bottom of the oil storage tank is provided with an oil filling hole, and the oil filling hole is communicated with the side wall and the oil storage tank.

Preferably, a detection device for detecting workpiece data is arranged on the lathe bed;

a sliding seat is movably arranged on the lathe bed, a driving device is arranged on the sliding seat, and the driving device drives the first tool turret or the second tool turret to move.

Preferably, a limiting sleeve is arranged in the sliding seat, and one end of the limiting sleeve is movably abutted against the driving device.

Preferably, the oil storage tank is arranged at the bottom of the first ram, the oil filling hole is formed in the bottom of the oil storage tank, and the oil filling hole is communicated with the side wall and the oil storage tank.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model discloses an improvement to current major axis machine tool, the single face processing mode before the change, increase a sword tower, first sword tower and second sword tower set up respectively in the upper and lower both sides of work piece and in the coplanar, two centre frame clamping device that can move at will have been increased simultaneously, in processing, can be through two centre frame clamping device centre gripping major axis work pieces simultaneously, first sword tower and second sword tower can work simultaneously, cooperate first clamping device and second clamping device, carry out different processes such as rough turning, finish turning to the work piece, accomplish all processes that processing major axis work piece needs through a lathe, change machine tooling has been saved, the trouble of many times clamping, machining precision has been guaranteed; simultaneously the advantage of the design of first sword tower and second sword tower makes the power that both processing produced offset each other, prevents that the power that the processing produced from leading to the work piece crooked, influences the work piece precision, guarantees the qualification rate of production.

Drawings

Fig. 1 is a schematic view of the overall structure in embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of a first turret with a protective cover according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of a first turret with a hidden protective cover according to embodiment 1 of the present invention.

Fig. 4 is one of the schematic structural diagrams of the first turret in embodiment 1 of the present invention.

Fig. 5 is a second schematic structural view of the first turret according to embodiment 1 of the present invention.

Fig. 6 is one of the schematic structural diagrams of the center device in embodiment 1 of the present invention.

Fig. 7 is a second schematic structural view of a center device according to embodiment 1 of the present invention.

Fig. 8 is a schematic view of a holding device in embodiment 1 of the present invention.

Fig. 9 is a schematic structural view of a ram ii in embodiment 1 of the present invention.

Fig. 10 is a schematic structural diagram of a material conveying device in embodiment 1 of the present invention.

Fig. 11 is a schematic view of the overall structure in embodiment 2 of the present invention.

Fig. 12 is a schematic view of a rotating tailstock in embodiment 2 of the present invention.

Fig. 13 is a schematic view of the overall structure in embodiment 3 of the present invention.

Reference numerals: 1-a lathe bed; 11-a main shaft; 111-rotating tailstock; 112-a third drive member; 113-a turret seat; 12 a drive member; 13-a first movable aperture; 131-a first guide rail; 132-a third drive member; 133-a third lead screw; 134-a third screw boss; 135-secondary main shaft; 14-a first slide rail; 15-a first screw base; 16-a first drive member; 17-a first lead screw; 18-a second slide rail; 19-a second movable aperture; 191-a third slide rail; 192-a motor; 193-fourth lead screw; 194-a fourth screw sleeve; 2-a tip device; 21-ram one; 22-a first expansion plate; 221-a limit boss; 23-driver one; 231-apex; 232-a power unit assembly; 233-fixed seat; 234-a drill bit; 235-driver three; 24-a limiting plate; 241-fixing grooves; 242-wedges; 3-a first turret; 4-a second turret; 5-a clamping device; 51-ram II; 511-oil reservoir; 512-oil hole; 52-a second expansion plate; 53-driver two; 54-a center frame; 6-a slide seat; 61-a drive device; 611-a second drive member; 612-a second lead screw;

613-second screw base; 62-a limit sleeve; 7, a detection device; 8-a protective cover; 9-second clamping means. 10-a material conveying device; 101-a fixed mount; 102-a first slide rail; 103-a second fixed seat; 104-driver four; 105-a moving bar; 106-a second slide rail; 107-driver five; 108-a clamp.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Embodiment 1 is as shown in fig. 1, a major axis turning machine tool, including a machine tool body 11, a column is arranged on the machine tool body, a spindle 11 is arranged on the column, a driving part 12 is arranged on a rear side surface of the column, the driving part 12 is a servo motor, the driving part 12 drives the spindle 11 to rotate through a synchronous belt, a first movable hole 13 is formed in the other side of the column, a tip device 2 is movably arranged in the first movable hole 13, the tip device 2 is mainly used for assisting the spindle 11 to clamp a workpiece, and the end of the workpiece is prevented from shaking in a machining process to affect a machining precision.

The column of the lathe bed 1 is provided with a first tool turret 3 and a second tool turret 4, the first tool turret 3 and the second tool turret 4 are vertically distributed and are arranged at the upper side and the lower side of a clamped workpiece, the column is also movably provided with a first clamping device 5 and a second clamping device 9, a long-axis workpiece can be clamped simultaneously through the first clamping device 5 and the second clamping device 9, a centre hole of an end face is firstly determined and drilled through a centre device 2, then the workpiece is propped against, then the first tool turret 3 and the second tool turret 4 can simultaneously work, different working procedures such as rough turning, fine turning and the like can be carried out by matching with the clamping devices, the first tool turret 3 and the second tool turret 4 can simultaneously carry out different working procedures or the same working procedure on the workpiece, the two tool turrets are arranged for the purpose of utilizing the stress generated when the first tool turret 3 works to offset the stress generated by the opposite second tool turret 4, the condition that the stress that avoids a sword tower during operation to produce makes the work piece buckle takes place, guarantees machining precision and product percent of pass, reduction in production cost sets up two sword towers simultaneously and can also accelerate production rate, improves production efficiency. The first clamping device 5, the second clamping device 9, the first tool turret 3 and the second tool turret 4 which are arranged on the stand column of the lathe bed 1 can be matched to work, the work pieces are subjected to procedures such as rough turning and finish turning, the previous equipment can only process long shaft work pieces after rough turning, the lathe of the application can process blank materials of long shafts, complete machining procedures of one long shaft can be carried out through the equipment, the equipment does not need to be replaced, the cost can be saved, and meanwhile, the production speed can be improved.

As shown in fig. 2 to 4, the first turret 3 and the second turret 4 have the same structure, and the structure for realizing the movement is also the same, so the explanation of the structure is made by taking the first turret 3 as an example: the lathe body 1 is provided with a first slide rail 14, the first slide rail 14 is provided with a slide seat 6, the slide seat 6 is provided with a first screw rod seat 15, the lathe body 1 is provided with a first driving piece 16, the output end of the first driving piece 16 is connected with a first screw rod 17, and the first driving piece 16 drives the slide seat 6 to move transversely through the matching of the first screw rod 17 and the first screw rod seat 15. The sliding base 6 is provided with a driving device 61 and a first cutter tower 3, the sliding base 6 is provided with a second sliding rail 18, the first cutter tower 3 is arranged on the second sliding rail 18, the driving device 61 comprises a second driving piece 611, and the second driving piece 611 drives the first cutter tower 3 to move up and down through the matching of a second screw rod 612 and a second screw rod seat 613. The transmission mode of the screw rod and the screw rod seat has the advantages that the precision is high, the screw rod transmission mechanism can well meet the requirement of a machining long shaft and other workpieces with high precision requirements, the first driving part 16 and the second driving part 611 both adopt servo motors, and the servo motors have the advantages of high precision and can ensure the accuracy of the displacement of the turret; the overload resistance is strong, the load which is three times of the rated torque can be borne, and the method is particularly suitable for occasions with instant load fluctuation and requirements on quick starting; the low-speed running is stable, and the stepping running phenomenon similar to that of a stepping motor can not be generated during the low-speed running. The above arrangement is all for guaranteeing the stability of the operation of the turret and the rotation accuracy of the mobile position, can guarantee the machining precision of the equipment, and guarantee the qualification rate of products.

The first tool turret 3 and the second tool turret 4 are both power tool turrets, different tools such as a finish turning tool and a rough turning tool can be installed, the first tool turret 3 and the second tool turret 4 can simultaneously process the same procedure or different procedures, and the single tool turret can also operate, so that the practicability is higher. The two tool turrets work to offset the stress generated during work, so that the workpiece is prevented from being bent. Meanwhile, the production speed can be accelerated on the premise of ensuring higher processing precision.

As shown in fig. 2, in order to ensure that the generated scraps do not affect the equipment, protective covers 8 are respectively arranged on the first turret 3 and the second turret 4, and the protective covers 8 can well protect and prevent the scraps from entering the first turret 3 and the sliding base 6, so that the service life of the equipment can be prolonged.

As shown in fig. 5, a limiting sleeve 62 is disposed in the sliding base 6, and the limiting sleeve 62 can limit the moving position of the second screw rod seat 613, so as to limit the moving position of the first turret 3, effectively avoid the collision between the first turret 3 and the second turret 4, and protect the equipment from being damaged due to misoperation.

As shown in fig. 6-7, a first guide rail 131 and a third driving member 132 are disposed in the first movable hole 13, the center device 2 is disposed on the first guide rail 131 by means of a sliding block, the third driving member 132 drives the center device 2 to move on the first guide rail 131 through cooperation of a third lead screw 133 and a third lead screw seat 134, the center device 2 includes a ram one 21, a first expansion plate 22 is movably disposed in the ram one 21, one end of the ram one 21 is provided with a first driver 23, an output end of the first driver 23 is movably connected with the first expansion plate 22, the first driver 23 drives the first expansion plate 22 to move in the ram one 21, the other end of the first expansion plate 22 is provided with a center 231 and a power unit assembly 232, the center 231 is used for supporting a workpiece, the power unit assembly 232 includes a fixed seat 233, the fixed seat 233 is detachably disposed at an end of the first expansion plate 22, the fixed seat 233 is provided with a drill 234 and a third, the driver three 235 drives the drill bit 234 to rotate, which is designed for some long shafts that require a central hole. In order to prevent that expansion plate 22 from stretching out the overlength, be provided with spacing boss 221 at expansion plate 22 and driver 23 link, spacing boss 221 and 21 tip activity butt of ram, can restrict the extended position of expansion plate 22, guarantee the normal function of equipment, spacing boss 221 still plays the effect of location simultaneously, can guarantee the accuracy of the power unit subassembly 232 shift position on the expansion plate 22, guarantee the accuracy of drilling.

As shown in fig. 7, in order to ensure that the first expansion plate 22 always moves in the first ram 21, the first ram 21 is provided with the limiting plate 24, which is certainly worn when in use, and once the first expansion plate 22 is worn, the first ram 21 may shake, which may affect the machining precision, in order to avoid such situation, the limiting plate 24 is provided with a fixing groove 241, a wedge 242 is arranged in the fixing groove 241, and the wedge 242 functions to compensate a gap between the first expansion plate 22 and the first ram 21, so as to ensure that the first expansion plate 22 does not shake to affect the machining precision.

As shown in fig. 1 and 8, a second movable hole 19 is formed in the column, and a first clamping device 5 and a second clamping device 9 are movably disposed in the second movable hole 19, and since the first clamping device 5 and the second clamping device 9 have the same structure, only the structure of the first clamping device 5 will be described, and the structure of the first clamping device 5 is as follows: a third sliding rail 191 and a motor 192 are arranged in the second movable hole 19, a first clamping device 5 is movably arranged on the third sliding rail 191, and the motor 192 drives the first clamping device 5 to transversely move through a fourth screw 193 and a fourth screw sleeve 194. The advantage that sets up ability lateral shifting is the interval of conveniently adjusting first clamping device 5 and second clamping device 9, can the multiple model, the work piece of length difference of centre gripping. The applicability of the equipment is improved, and meanwhile, the processing is convenient. The first tool turret 3 and the second tool turret 4 can be matched to perform procedures such as rough turning and fine turning, the clamping position can be adjusted freely by the first clamping device 5 and the second clamping device 9, and the processing is convenient.

As shown in fig. 8, the first clamping device 5 includes a ram two 51, a telescopic plate two 52 is movably disposed in the ram two 51, a second driver 53 is disposed at one end of the ram two 51, the second driver 53 is preferably a servo motor, an output end of the second driver 53 is movably connected with the telescopic plate two 52, the second driver 53 drives the telescopic plate two 52 to move in the ram two 51, a center frame 54 is disposed at the other end of the telescopic plate two 52, the center frame 54 is preferably a hydraulic custom center frame, the center frame 54 is opened and closed through hydraulic control, the movable telescopic plate two 52 can make the center frame 54 perform telescopic motion, such that the advantage of the design is that after the workpiece is processed, the center frame 54 opens the second driver 53 controller to contract, and the workpiece only remains the clamping of the spindle 11, such that the blanking is more convenient, a blanking manipulator can also be installed on the machine tool, and automatic blanking is performed by the manipulator, the advantage of this technical scheme is that the centre frame 54 and the telescopic centre device 2 do not interfere the blanking of the workpiece, so that the workpiece can be blanked more quickly and conveniently, and the material changing speed is increased.

As shown in fig. 1, the bed 1 is provided with a detection device 7, the detection device 7 is mainly used for detecting various data of the processed workpiece to ensure the qualification rate of the product, and the detection device 7 adopts a laser interferometer to detect the data of the workpiece.

As shown in fig. 9, oil storage grooves 511 are formed in the bottoms of the first ram 21 and the second ram 51, oil filling holes 512 are formed in the bottoms of the oil storage grooves 511, and the oil filling holes 512 communicate the side walls with the oil storage grooves 511. The second ram 51 is filled with oil conveniently, the lubrication degree is guaranteed, and abrasion is reduced.

As shown in fig. 10, because first clamping device 5 and second clamping device 9 are that lateral shifting sets up, but the device itself still has flexible function simultaneously, such design can set up material transporting device 10 on fuselage 1, the automatic unloading of work piece can be realized to first clamping device 5 and the motion of second clamping device 9 cooperation material transporting device 10, realize automated production, reduce manual operation, accelerate production rate, simultaneously can also avoid because the artifical product of taking, because of the condition emergence that the collision or drop caused the product to damage, can also guarantee personal safety.

The material transporting device 10 comprises a fixed frame 101, a first sliding rail 102 is arranged on the fixed frame 101, a second fixed seat 103 is movably arranged on the first sliding rail 102, a fourth driver 104 and a synchronous belt are arranged on the fixed frame 101, the fourth driver 104 is preferably a motor, the second fixed seat 103 is connected with the synchronous belt, and the fourth driver 104 drives the second fixed seat 103 to move on the first sliding rail 102 through the synchronous belt. A moving rod 105 is arranged on the second fixed seat 103, a second slide rail 106 is arranged on the moving rod 105, a slide block is arranged on the second fixed seat 103, the moving rod 105 moves up and down on the second fixed seat 103 through the matching of the second slide rail 106 and the slide block, a fifth driver 107 is arranged on the second fixed seat 103 for driving the moving rod 105 to move, a gear is arranged at the output end of the fifth driver 107, a rack is arranged on the moving rod 105, the fifth driver 107 drives the moving rod 105 to move up and down through the matching of the gear and the rack, the first slide rail 102 and the second slide rail 106 are mainly arranged for enabling the moving rod 105 to move up and down and left and right, and for more conveniently moving workpieces, a clamping piece 108 is arranged at the lower end of the moving rod 105 and used for clamping workpieces processed on a machine. After the machine tool finishes processing a workpiece, the workpiece is firstly loosened by the spindle, the first clamping device 5 and the second clamping device 9 firstly move the workpiece to the clamping range of the spindle, the workpiece is clamped by the clamping piece 108 of the material conveying device 10, then the first clamping device 5 and the second clamping device 9 retract into the machine body, so that the workpiece is completely clamped by the material conveying device 10, after the clamping is finished, the workpiece can be conveyed to a set position by the material conveying device 10, because the workpiece is generally heavier in weight, if manual conveying is adopted, the efficiency is very low, meanwhile, improper conveying is possible, harm is caused to the body of a worker, the material conveying device 10 is mechanically operated, the clamping is firmer, meanwhile, fatigue is not generated, the production rate can be ensured, and meanwhile, the production safety can be improved.

Example 2:

as shown in fig. 11 to 12, the other structures of the bed are the same as those of embodiment 1, except that: embodiment 2 does not have the centre device 2 that can stretch, has changed centre device 2 into rotatory tailstock, and the concrete structure is as follows: one end of the upright column is movably provided with a third slide rail, the third slide rail is movably provided with a rotary tailstock 111, the upright column is provided with a third driving part 112, and the third driving part 112 controls the movement of the rotary tailstock 111 through a screw rod.

The rotary tailstock 111 has other functions besides the basic function of propping against a workpiece, so the rotary tailstock 111 has good bearing capacity, based on the requirement, a turret seat is designed, the turret seat wraps the whole rotary tailstock 111 body, only a cutter part is reserved on the outer side for processing the workpiece, the bearing capacity of the rotary tailstock can be greatly increased, and meanwhile, various cutters, such as a tip, a boring cutter, a drill bit and the like, are arranged on the rotary tailstock and used for processing the workpiece, such as turning the workpiece into a hexagon and the like. The use is simple and convenient, and the requirements of workpieces on various procedures can be met. The main body of the rotating tailstock is applied to a power knife tower.

Example 3:

as shown in fig. 13, the technical solution of the embodiment 3 is substantially the same as the structure of the embodiments 1 and 2, and the difference is that a movable auxiliary main spindle 135 is provided on the bed, the movement mode of the auxiliary main spindle 135 is the same as the transverse movement mode of the center device 2, and the transverse movement of the auxiliary main spindle 135 is controlled through the motor lead screw transmission, and the auxiliary main spindle 135 is applied to fixing through the auxiliary main spindle 135 when a processed workpiece is too thin, so that the fixing can be firmer, and the use is simple and convenient.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (11)

1. The utility model provides a major axis turning lathe, includes lathe bed (1), is provided with main shaft (11) that are used for driving the rotation of work piece on lathe bed (1), its characterized in that: the machine tool comprises a main shaft (11), wherein a first clamping device (5) and a second clamping device (9) which are used for clamping workpieces are arranged on a tool body (1) on one side of the main shaft (11), a first cutter tower (3) and a second cutter tower (4) are arranged on the tool body (1) and distributed on the upper side and the lower side of the workpieces, and the first clamping device (5), the second clamping device (9), the first cutter tower (3) and the second cutter tower (4) are matched with each other to process the workpieces in the rotating process of the main shaft (11).

2. A long axis turning machine as claimed in claim 1, wherein: the lathe bed (1) is movably provided with a rotary tailstock for fixing a plurality of cutters and finials, and the finials on the rotary tailstock are movably abutted against the center hole of the workpiece.

3. A long axis turning machine as claimed in claim 1, wherein: the first clamping device (5) comprises a second ram (51), a second expansion plate (52) is movably arranged in the second ram (51), a second driver (53) is arranged at one end of the second ram (51), the second driver (53) drives the second expansion plate (52) to move, and a center frame (54) used for clamping a workpiece is arranged at one end of the first expansion plate (22).

4. A long axis turning machine as claimed in claim 1, wherein: the lathe bed (1) is provided with a telescopic centre device (2).

5. The long axis turning machine of claim 4, wherein: the centre device (2) comprises a ram I (21), a first expansion plate (22) is movably arranged in the ram I (21), a first driver (23) is arranged at one end of the ram I (21), the first driver (23) drives the first expansion plate (22) to move in the ram I (21), and a centre (231) and a power unit assembly (232) for drilling a central hole are arranged at one end of the first expansion plate (22).

6. The long axis turning machine of claim 5, wherein: a limiting plate (24) is arranged on the first ram (21), a fixing groove (241) is formed in the limiting plate (24), and a wedge block (242) used for compensating a gap between the first expansion plate (22) and the first ram (21) is arranged in the fixing groove (241).

7. The long axis turning machine of claim 5, wherein: the power unit component (232) comprises a fixed seat (233), the fixed seat (233) is detachably arranged at the end of the first expansion plate (22), a drill bit (234) is movably arranged at one end of the fixed seat (233), a driver III (235) is arranged at one end of the fixed seat (233), and the driver III (235) drives the drill bit (234) to rotate.

8. A long axis turning machine as claimed in claim 3, wherein: an oil storage tank (511) is formed in the bottom of the second ram (51), an oil filling hole (512) is formed in the bottom of the oil storage tank (511), and the side wall of the oil filling hole (512) is communicated with the oil storage tank (511).

9. A long axis turning machine as claimed in claim 1, wherein: the lathe bed (1) is provided with a detection device (7) for detecting workpiece data;

a sliding seat (6) is movably arranged on the lathe bed (1), a driving device (61) is arranged on the sliding seat (6), and the driving device (61) drives the first cutter tower (3) or the second cutter tower (4) to move.

10. A long axis turning machine as claimed in claim 9, wherein: a limiting sleeve (62) is arranged in the sliding seat (6), and one end of the limiting sleeve (62) is movably abutted against the driving device (61).

11. The long axis turning machine of claim 5, wherein: an oil storage tank (511) is formed in the bottom of the first ram (21), an oil filling hole (512) is formed in the bottom of the oil storage tank (511), and the side wall of the oil filling hole (512) is communicated with the oil storage tank (511).

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