CN111761079A - Double-spindle double-tool turret machine tool capable of inverting and reversing - Google Patents

Abstract

The invention provides a double-spindle double-turret machine tool, which belongs to the field of numerical control machines and comprises a machine tool body, wherein a mounting platform horizontally arranged along an X axis is arranged on the machine tool body, an X axis guide rail is horizontally arranged on the mounting platform, a first upright post and a second upright post are sequentially arranged above the mounting platform, a first driving part for driving the first upright post to move along the X axis guide rail and a second driving part for driving the second upright post to move along the X axis guide rail are also arranged on the machine tool body, a first main shaft part is arranged on the first upright post, a second turret part is arranged on the second upright post, a first turret part is arranged on one side of the machine tool body positioned on the first main shaft part, and a second main shaft part is arranged between the first upright post and the second upright post. The automatic feeding device has the functions of automatic feeding, automatic processing and automatic discharging, and has high automation degree; the machine tool is combined forward and backward, the workpiece does not need to be turned over during processing, and continuous production can be carried out; the X-axis guide rail is horizontally arranged to move more stably, and the machining precision is high; and each mechanism of the machine tool has compact structure and compact layout of the whole machine.

Description

Double-spindle double-tool turret machine tool capable of inverting and reversing

Technical Field

The invention relates to the field of machine tools, in particular to a double-spindle double-turret forward and backward vertical lathe.

Background

With the joyful and development of the national equipment manufacturing industry, the numerically controlled lathe, as a mainstream product of the lathe industry, has become a key device for realizing the modernization of the equipment manufacturing industry.

The positive and negative handstand vehicle is one of a plurality of lathes, has large output torque of a main shaft of the positive and negative handstand vehicle, is mainly used for the automobile industry, and particularly is used for processing disk parts such as hubs, brake discs and the like. The tool turret is fixed when the positive and negative inversion lathe processes a workpiece, the main shaft is integrated with a clamp to clamp the workpiece, and the main shaft drives the workpiece to rotate and move during turning to complete turning.

As shown in a patent with publication number CN204770699U named as an automatic positive and negative inverted composite numerical control turning center, the automatic positive and negative inverted composite numerical control turning center comprises two main shaft parts and two tool tower parts, a machine tool is combined positively and negatively, a workpiece does not need to be turned over during processing, and the processing efficiency is high.

As shown in the above patent, a vertical bed is provided on the machine tool, a guide rail is provided on the side surface of the bed along the X-axis direction, two carriages are hung on the guide rail, and the spindle on the left side and the turret on the right side are respectively mounted on the two carriages to realize left-right movement. The carriage is hung on the side surface of the lathe bed in the structure, and the main shaft and the cutter tower are heavy and are integrated with the power driving part, so that the pressure on the guide rail is very large when the carriage moves and the main shaft and the cutter tower act, the guide rail is easy to deform, and the movement of the main shaft and the cutter tower is unstable, thereby influencing the processing precision.

Disclosure of Invention

In view of the above, the present invention provides a double-spindle double-turret machine tool with a stable motion of the spindle and turret and a high machining precision.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides a two main shaft double knives tower just handstand lathe, includes the lathe bed, be equipped with the mounting platform who sets up along X axle level on the lathe bed, the last X axle guide rail that has crouched of mounting platform, first stand and second stand have stood in proper order in the mounting platform top, first stand and second stand all slide and connect in X axle guide rail, still be equipped with the first drive division of drive first stand along X axle guide rail motion, drive the second drive division of second stand along X axle guide rail motion on the lathe bed, be equipped with first main shaft portion on the first stand, be equipped with second sword tower portion on the second stand, one side that the lathe bed is located first main shaft portion is equipped with first sword tower portion, the lathe bed is located and is equipped with second main shaft portion between first stand and the second stand.

According to the technical scheme, the mounting platform is horizontally arranged, the X-axis guide rail is horizontally laid on the mounting platform, so that the first stand column and the second stand column are pressed on the X-axis guide rail on the mounting platform, the weight of the first stand column and the weight of the second stand column are supported by the mounting platform, when the first stand column and the second stand column move, lateral shearing force cannot be generated on the X-axis guide rail, and therefore bending deformation of the X-axis guide rail is effectively avoided; in addition, the X-axis guide rail is horizontally arranged to replace a side hanging arrangement, so that the pressure of the X-axis guide rail on the first stand column and the second stand column is more uniform, unilateral stress is avoided, the first stand column and the second stand column are more stable and reliable in movement, and the machining precision of the machine tool is improved;

in addition, the machine tool is combined forward and backward, the workpiece does not need to be turned over during processing, and the processing efficiency and the processing precision of the machine tool are effectively improved.

Preferably, the first spindle portion comprises a first spindle which is vertically connected to the first upright in a sliding manner, a third driving portion which drives the first spindle to move up and down, a first hydraulic chuck arranged on the first spindle, and a fourth driving portion which drives the first spindle to rotate, and the first spindle acts on the first tool tower portion.

Through the technical scheme, the first spindle can transversely move along the X-axis guide rail direction, can vertically move up and down, and can also rotate; under the effect of first hydraulic chuck, work piece can be snatched to first main shaft, and degree of automation is high.

Preferably, the first tool tower part comprises a first tool disc rotationally connected to the lathe bed and a first power part driving the first tool disc to rotate, the first tool disc is located below the first spindle, and a rotation axis of the first tool disc is perpendicular to a rotation axis of the first spindle.

Through the technical scheme, the first cutter disc can rotate around the rotation axis of the first cutter disc to realize the switching of the cutters; the first cutter disc is positioned below the first main shaft, and the rotating axis of the first cutter disc is horizontally arranged, so that the occupied space is reduced, and the structure of the machine tool is more compact.

Preferably, the second spindle unit includes a second spindle standing on the bed, a second hydraulic chuck disposed on the second spindle, and a fifth driving unit for driving the second spindle to rotate.

Through the technical scheme, the second spindle can rotate under the action of the fifth driving part, and the workpiece is clamped through the second hydraulic chuck.

Preferably, the second turret portion includes that vertical slip is connected in the mount pad of second stand, the second power portion of drive mount pad up-and-down motion, rotate the second cutter dish of connecting in the mount pad bottom, drive second cutter dish pivoted third power portion, the vertical setting of axis of rotation of second cutter dish.

Through above-mentioned technical scheme, the second stand can drive the second cutter dish along X axle direction round trip movement, and the vertical direction that can follow is reciprocated to the second cutter dish under the effect of second power portion to the axis that the second cutter dish can also be around self vertical setting is from changeing the cutter and is acted on the second main shaft.

Preferably, a plurality of cutter mounting positions are arranged on the second cutter disc in the circumferential direction, a blanking clamping jaw is arranged on one of the cutter mounting positions, and a workpiece blanking platform is arranged on the lathe bed and on one side, far away from the second main shaft part, of the second cutter disc.

Through the technical scheme, the second cutter disc can be provided with not only the cutter, but also the blanking clamping jaw, and after the workpiece is machined on the second spindle, the cutter disc is rotated, and the blanking clamping jaw is rotated to the position above the second spindle, so that the workpiece can be directly grabbed; then, the cutter disc is rotated, and the blanking clamping jaw is rotated to the workpiece blanking platform, so that the unloading can be carried out; the process can easily realize workpiece blanking without an additional manipulator, and has the advantages of compact structure, convenient and stable blanking.

Preferably, the workpiece blanking platform comprises a first guide rail, a workpiece conveying belt arranged on the first guide rail, and a sixth driving portion for driving the conveying belt to move, and one end of the first guide rail is located on one side, away from the second main shaft portion, of the second cutter disc.

Through the technical scheme, when the workpiece falls on the first guide rail, the workpiece can be conveyed out of the machine tool by the aid of the workpiece conveying belt, and workpiece conveying and unloading are completed.

Preferably, an automatic feeding mechanism is arranged on the bed body and on one side of the first main shaft part, which is far away from the second main shaft part.

Through the technical scheme, the automatic feeding mechanism can realize automatic feeding of workpieces on the machine tool, labor force is saved, and feeding is more convenient and stable.

Preferably, the automatic feeding mechanism comprises a first-stage feeding platform arranged on the lathe bed and a seventh driving part for driving the first-stage feeding platform to move towards the first main shaft part, the first-stage feeding platform is connected to the rack in a sliding mode, a second-stage feeding platform and an eighth driving part for driving the second-stage feeding platform to move towards the first main shaft part are arranged on the first-stage feeding platform, the second-stage feeding platform is connected to the first-stage feeding platform in a sliding mode, and a feeding platform is arranged on the second-stage feeding platform.

According to the technical scheme, the workpiece is positioned on the feeding platform, and the workpiece is accurately fed below the first spindle in a two-stage feeding mode, so that the first spindle only needs to move downwards to take the workpiece, and does not need to move transversely when taking the workpiece, and the step that the spindle positions the workpiece and moves transversely to find the position of the workpiece is omitted; the final feeding position of the two-stage feeding platform can be positioned, the positioning is single, errors caused by multi-step positioning are reduced, the accuracy of workpiece feeding is guaranteed, and the feeding process is smoother and more convenient.

Preferably, the automatic feeding mechanism further comprises a feeding mechanism arranged on one side of the lathe bed, the feeding mechanism comprises a feeding platform and a feeding clamping claw, a guide rail support is arranged on the feeding platform, a movable support is connected to the guide rail support in a sliding mode, a ninth driving portion for driving the movable support to move is arranged on the guide rail support, the feeding clamping claw is connected to the movable support in a sliding mode along the vertical direction of the movable support, and a tenth driving portion for driving the feeding clamping claw to move is arranged on the movable support.

Through above-mentioned technical scheme, the material loading clamping jaw can be automatically got the work piece from the material feeding platform is got and is sent to the material loading bench to realize full-automatic feeding, degree of automation is higher.

The technical effects of the invention are mainly reflected in the following aspects:

1. the automatic feeding, processing and discharging device has the functions of automatic feeding, automatic processing and automatic discharging, and has high automation degree;

2. the machine tool is combined forward and backward, and the workpiece does not need to be turned over during processing, so that the processing efficiency and the processing precision of the machine tool are effectively improved;

3. the first main shaft can process the next workpiece while the second main shaft processes the previous workpiece, the machine tool continuously and stably operates, and the processing efficiency is high;

4. the X-axis guide rail is horizontally arranged, and the first upright post and the second upright post are vertically and horizontally arranged on the X-axis guide rail to replace a side hanging mode, so that the machine tool is more stable in movement and high in machining precision;

5. each mechanism of the machine tool has compact structure, small occupied area and compact layout of the whole machine.

Drawings

Fig. 1 is a schematic structural view of a machine tool main body portion in the embodiment, intended to show a structure at a mounting platform;

FIG. 2 is a schematic structural view of a first state of the machine tool as a whole in the embodiment, in which the primary feeding platform and the secondary feeding platform are both in the end positions;

FIG. 3 is a structural diagram of the machine tool in a second state in which the primary feeding table and the secondary feeding table are both in the initial positions;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

fig. 6 is an enlarged view of the portion C in fig. 3.

Reference numerals: 1. a bed body; 2. mounting a platform; 3. an X-axis guide rail; 4. a first upright post; 5. a second upright post; 6. a first main shaft portion; 61. a first main shaft; 62. a third driving section; 63. a first hydraulic chuck; 64. a fourth driving section; 7. a second turret portion; 71. a mounting seat; 72. a second power section; 73. a second cutter disc; 74. a third power section; 8. a first blade tower portion; 81. a first cutter disc; 82. a first power section; 9. a second main shaft portion; 91. a second main shaft; 92. a second hydraulic chuck; 93. a fifth driving section; 10. a first driving section; 11. a second driving section; 12. a tool mounting position; 13. blanking clamping jaws; 14. detecting the probe; 15. a strut; 16. an outer cover baffle; 17. a housing baffle; 18. a feed port; 19. a bin gate; 20. a thirteenth driving section; 21. flying a cutter; 100. a workpiece blanking platform; 101. a first guide rail; 102. a workpiece conveyor belt; 103. a sixth driving section; 104. a feeding end; 105. a discharge end; 106. a striker plate; 107. an eleventh driving section; 108. an inductor; 109. a second guide rail; 200. an automatic feeding mechanism; 210. a first-stage feeding platform; 220. a seventh driving section; 230. a secondary feeding platform; 240. an eighth driving section; 250. a feeding table; 260. a feeding mechanism; 261. a feeding platform; 2611. a material rack; 2612. a feeding tray; 262. a feeding clamping jaw; 263. a rail bracket; 264. moving the support; 265. a ninth driving section; 266. a tenth driving section; 267. an elastic buffer member; 269. a first sensor.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

The double-spindle double-turret machine tool shown in the attached figures 1 and 2 comprises a machine body 1, wherein a mounting platform 2 horizontally arranged along an X axis is arranged on the machine body 1, and an X-axis guide rail 3 is horizontally arranged on the mounting platform 2. First stand 4 and second stand 5 have stood in proper order above mounting platform 2, and first stand 4 and second stand 5 all slide to be connected in X axle guide rail 3. The lathe bed 1 is also provided with a first driving part 10 for driving the first upright post 4 to move along the X-axis guide rail 3 and a second driving part 11 for driving the second upright post 5 to move along the X-axis guide rail 3. The first upright post 4 is provided with a first main shaft part 6, and the second upright post 5 is provided with a second turret part 7. One side of the lathe bed 1, which is positioned on the first main shaft part 6, is provided with a first tool tower part 8, and a second main shaft part 9 is arranged between the first upright post 4 and the second upright post 5 of the lathe bed 1. In order to realize automatic feeding and automatic discharging, an automatic feeding mechanism 200 is arranged on the lathe bed 1 and positioned on one side of the first main shaft part 6, which is far away from the second main shaft part 9; a workpiece blanking platform 100 is arranged on the lathe bed 1 on the side of the second tool disc 73 away from the second main shaft part 9.

With reference to fig. 1 and 2, the first main shaft portion 6 includes a first main shaft 61 vertically slidably connected to the first column 4, a third driving portion 62 for driving the first main shaft 61 to move up and down, a first hydraulic chuck 63 disposed on the first main shaft 61, and a fourth driving portion 64 for driving the first main shaft 61 to rotate, and the first main shaft 61 is disposed vertically downward and acts on the first turret portion 8.

The first tool tower 8 includes a first tool disc 81 rotatably connected to the bed 1 and a first power unit 82 for driving the first tool disc 81 to rotate, the first tool disc 81 is located below the first spindle 61, and a rotation axis of the first tool disc 81 is perpendicular to a rotation axis of the first spindle 61.

Referring to fig. 1, 3 and 5, the second spindle 9 includes a second spindle 91 standing on the bed 1, a second hydraulic chuck 92 provided on the second spindle 91, and a fifth driving portion 93 for driving the second spindle 91 to rotate. The second main shaft 91 is further provided with a fly cutter 21 in the circumferential direction, and the fly cutter 21 can complete hexagonal turning of a workpiece. Wherein, a detection probe 14 is arranged on the lathe bed 1 and between the first main shaft 61 and the second main shaft 91. Here, a supporting rod 15 is provided on the bed 1 at the second spindle 91, and the detection probe 14 stands on the supporting rod 15 with the probe of the detection probe 14 facing upward. When the first spindle 61 finishes processing the workpiece, the workpiece can be driven to move towards the detection probe 14, and the detection probe 14 is used for detecting the size condition of the workpiece on the first spindle 61, so that whether the cutter is broken or damaged is judged, the condition of the cutter is predicted in advance, the cutter is replaced in time, defective products are blocked in time, and the processing efficiency is improved.

With reference to fig. 1, 3 and 6, the second turret portion 7 includes a mounting seat 71 vertically slidably connected to the second column 5, a second power portion 72 driving the mounting seat 71 to move up and down, a second cutter disc 73 rotatably connected to the bottom of the mounting seat 71, and a third power portion 74 driving the second cutter disc 73 to rotate, and a rotation axis of the second cutter disc 73 is vertically arranged. The second cutter disc 73 is circumferentially provided with a plurality of cutter mounting positions 12, one of the cutter mounting positions 12 is provided with a blanking clamping jaw 13, and the blanking clamping jaw 13 is matched with the workpiece blanking platform 100 for use.

Referring to fig. 2, 3 and 6, the workpiece blanking platform 100 includes a first guide rail 101, a workpiece conveying belt 102 disposed on the first guide rail 101, and a sixth driving portion 103 for driving the conveying belt to move. One end of the first guide rail 101 is located on the side of the second cutter disc 73 remote from the second main shaft portion 9. The end of the first guide rail 101 away from the second cutter disc 73 is received with a second guide rail 109, and the end of the second guide rail 109 away from the first guide rail 101 is disposed obliquely downward. The workpiece is conveyed from the first guide rail 101 to the second guide rail 109 through the workpiece conveying belt 102, and automatically falls to the collection box by the inclined surface of the second guide rail 109, so that the workpiece conveying is completed.

Wherein, the lathe bed 1 is provided with a cover baffle 16 on one side of the first guide rail 101, and the first guide rail 101 passes through the cover baffle 16. The side of the first guide 101, which is located on the housing baffle 16 near the second cutter disc 73, is a feed end 104, and the side of the first guide 101, which is located on the housing baffle 16 away from the second cutter disc 73, is a discharge end 105. A striker plate 106 for opening and closing the feed end 104 is slidably connected to the feed end 104. The first guide rail 101 is provided with an eleventh driving part 107 for driving the striker plate 106 to move and a sensor 108 for sensing whether the material falls on the workpiece conveyor belt 102. When the sensor 108 senses that the workpiece falls on the workpiece conveying belt 102 of the first guide rail 101, an electric signal is sent to the eleventh driving part 107, the eleventh driving part 107 drives the striker plate 106 to move, and the striker plate 106 blocks the feeding end 104; here, since the machine tool does not stop processing other workpieces during the conveying of the workpiece, the material baffle 106 can prevent the inner scraps of the machine tool from entering the first guide rail 101 and causing scratching of the workpiece during the conveying of the workpiece.

Referring to fig. 2, 3 and 4, the automatic feeding mechanism 200 includes a primary feeding platform 210 disposed on the bed 1, and a seventh driving portion 220 for driving the primary feeding platform 210 to move toward the first main shaft portion 6. The first feeding platform 210 is slidably connected to the frame, and the second feeding platform 230 and an eighth driving part 240 for driving the second feeding platform 230 to move toward the first main shaft 61 are disposed on the first feeding platform 210. The secondary feeding platform 230 is connected to the primary feeding platform 210 in a sliding manner, and a feeding platform 250 is arranged on the secondary feeding platform 230; the feeding table 250 is vertically connected to the second-stage feeding platform 230 in a sliding manner, and an elastic buffer 267 for limiting the movement of the feeding table 250 is arranged on the second-stage feeding platform 230. When the first main shaft 61 takes the material, if the first main shaft 61 moves downwards, the feeding table 250 can buffer in the vertical direction, so as to avoid the damage of the parts caused by rigid contact.

The automatic feeding mechanism 200 further comprises a feeding mechanism 260 arranged on one side of the machine body 1, and the feeding mechanism 260 comprises a feeding platform 261 and a feeding clamping claw 262. The feeding platform 261 is provided with a guide rail bracket 263, the guide rail bracket 263 is connected with a movable bracket 264 in a sliding manner, and the guide rail bracket 263 is provided with a ninth driving part 265 for driving the movable bracket 264 to move. The feeding clamping jaw 262 is connected to the movable bracket 264 in a sliding manner along the vertical direction of the movable bracket 264, and the movable bracket 264 is provided with a tenth driving part 266 for driving the feeding clamping jaw 262 to move.

Here, the feeding platform 261 includes a rack 2611, a feeding tray 2612. The material rest 2611 is provided with a twelfth driving part (not shown in the figure) for driving the material feeding plate 2612 to reciprocate along a horizontal straight line, and the moving direction of the material feeding plate 2612 is perpendicular to the moving direction of the movable support 264. When the first row of workpieces on the feed tray 2612 is completed, the feed tray 2612 may move forward to bring the second row of workpieces under the loading jaws 262 for gripping.

In addition, a first sensor 269 for sensing whether the workpiece is placed on the loading table 250 is provided on the rail bracket 263. When the first sensor 269 senses that a workpiece is placed on the loading table 250, an electric signal is transmitted to the first driving part 10 and the second driving part 11, so that the primary feeding platform 210 and the secondary feeding platform 230 move to deliver the loading table 250 to a designated position. Both ends of the primary feeding platform 210 are provided with a second sensor (not shown) for sensing the position of the secondary feeding platform 230. The second sensors at both ends are used for judging whether the secondary feeding platform 230 is located at the start position or the end position; when the secondary feeding platform 230 is at the end position, that is, the feeding table 250 is located below the first main shaft 61, the second sensor gives an electric signal to the driving part of the first main shaft 61, the first main shaft 61 starts to take a material, and then the secondary feeding platform 230 moves to the start position; when the secondary feeding platform 230 is at the start position, that is, the feeding table 250 is located below the feeding clamping jaws 262, the second sensor gives an electric signal to the driving part of the feeding clamping jaws 262, the feeding clamping jaws 262 place the workpiece on the feeding table 250, and then the secondary feeding platform 230 moves toward the end position.

A shell baffle 17 is arranged on one side of the machine body 1 close to the feeding platform 261, a feeding port 18 for the first-stage feeding platform 210 and the second-stage feeding platform 230 to pass through and a bin gate 19 for opening and closing the feeding port 18 are arranged on the shell baffle 17, and a thirteenth driving part 20 for driving the bin gate 19 to open and close is further arranged on the shell baffle 17. When the workpiece is in a processing state, the bin gate 19 closes the feeding port 18, so that scraps are prevented from being ejected out, and the smoothness and accuracy of the movement of the feeding platform are prevented from being influenced.

The following examples illustrate the general machining steps of the machine tool:

1. the feeding mechanism automatically feeds materials;

2. the first main shaft clamps the workpiece and sequentially performs excircle processing, inner hole processing and the like on the lower part of the workpiece;

3. carrying out online detection on the workpiece machined by the first spindle;

4. the first main shaft drives a workpiece to be subjected to hexagonal turning by a fly cutter on the second main shaft;

5. the first main shaft conveys the workpiece to the position above the second main shaft, and the second main shaft clamps the workpiece;

6. the second tool tower part is used for processing the outer circle, the inner hole, the side hole and the like of the upper part of the workpiece on the second main shaft;

7. a blanking clamping jaw on the second tool tower part takes materials from the second main shaft and is placed at a workpiece blanking platform;

8. and the workpiece blanking platform conveys the workpiece to a specified position for collection.

The whole process of feeding, processing, detecting and discharging is automatically carried out, the automation degree is high, manual operation is replaced, the processing efficiency is high, and the processing precision is high.

The driving part and the power part can be power parts such as a motor, an air cylinder, a hydraulic cylinder and the like, and are selected and matched according to the practical application environment.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims (10)

1. The utility model provides a two main shafts two turrets machine tool just handstand, includes lathe bed (1), characterized by: be equipped with on lathe bed (1) along mounting platform (2) that X axle level set up, X axle guide rail (3) have crouched on mounting platform (2), first stand (4) and second stand (5) have stood in proper order above mounting platform (2), first stand (4) and second stand (5) all slide and connect in X axle guide rail (3), still be equipped with on lathe bed (1) and drive first stand (4) along first drive division (10) of X axle guide rail (3) motion, drive second stand (5) along second drive division (11) of X axle guide rail (3) motion, be equipped with first main shaft (61) portion (6) on first stand (4), be equipped with second sword tower portion (7) on second stand (5), one side that lathe bed (1) is located first main shaft (61) portion (6) is equipped with first sword tower portion (8), lathe bed (1) is located and is equipped with second main shaft portion (5) between first stand (4) and second stand (5), one side that lathe bed (1) is located first main shaft (6) is equipped with second sword tower portion (8), first sword tower portion ( (9).

2. The double-spindle double-turret machine tool according to claim 1, wherein: the first main shaft part (6) comprises a first main shaft (61) which is vertically connected to the first upright post (4) in a sliding mode, a third driving part (62) which drives the first main shaft (61) to move up and down, a first hydraulic chuck (63) arranged on the first main shaft (61), and a fourth driving part (64) which drives the first main shaft (61) to rotate, and the first main shaft (61) acts on the first cutter tower part (8).

3. The double-spindle double-turret machine tool according to claim 2, wherein: the first tool tower part (8) comprises a first tool disc (81) rotationally connected to the lathe bed (1) and a first power part (82) driving the first tool disc (81) to rotate, the first tool disc (81) is located below the first spindle (61), and the rotating axis of the first tool disc (81) is perpendicular to that of the first spindle (61).

4. The double-spindle double-turret machine tool according to claim 1, wherein: the second main shaft part (9) comprises a second main shaft (91) standing on the lathe bed (1), a second hydraulic chuck (92) arranged on the second main shaft (91) and a fifth driving part (93) for driving the second main shaft (91) to rotate.

5. The double-spindle double-turret machine tool according to claim 1, wherein: the second tool tower part (7) comprises a vertical sliding connection part, a second power part (72), a second tool disc (73) and a third power part (74), wherein the second power part is connected to a mounting seat (71) of the second upright post (5) in a sliding mode, drives the mounting seat (71) to move up and down, the second tool disc (73) is connected to the bottom of the mounting seat (71) in a rotating mode, the third power part drives the second tool disc (73) to rotate, and the rotating axis of the second tool disc (73) is vertically arranged.

6. The double-spindle double-turret machine tool according to claim 5, wherein: the lathe is characterized in that a plurality of cutter mounting positions (12) are arranged on the second cutter disc (73) in the circumferential direction, a blanking clamping jaw (13) is arranged on one cutter mounting position (12), and a workpiece blanking platform (100) is arranged on the lathe bed (1) and on one side, far away from the second spindle (91), of the second cutter disc (73).

7. The double-spindle double-turret machine tool according to claim 6, wherein: the workpiece blanking platform (100) comprises a first guide rail (101), a workpiece conveying belt (102) arranged on the first guide rail (101), and a sixth driving portion (103) used for driving the conveying belt to move, wherein one end of the first guide rail (101) is located on one side, away from the second main shaft portion (9), of the second cutter disc (73).

8. The double-spindle double-turret machine tool according to claim 1, wherein: and an automatic feeding mechanism (200) is arranged on the lathe bed (1) and positioned on one side of the first main shaft part (6) far away from the second main shaft part (9).

9. The double-spindle double-turret machine tool according to claim 8, wherein: the automatic feeding mechanism (200) comprises a first-level feeding platform (210) arranged on the lathe bed (1), and a seventh driving part (220) for driving the first-level feeding platform (210) to move towards the direction of the first main shaft part (6), wherein the first-level feeding platform (210) is connected to the rack in a sliding manner, an eighth driving part (240) for driving a second-level feeding platform (230) to move towards the direction of the first main shaft (61) is arranged on the first-level feeding platform (210), the second-level feeding platform (230) is connected to the first-level feeding platform (210) in a sliding manner, and a feeding platform (250) is arranged on the second-level feeding platform (230).

10. The double-spindle double-turret machine tool according to claim 9, wherein: automatic feeding mechanism (200) are still including feeding mechanism (260) of locating lathe bed (1) one side, feeding mechanism (260) are including feeding platform (261), material loading clamping jaw (262), be equipped with rail brackets (263) on feeding platform (261), it has movable support (264) to slide on rail brackets (263) to be connected with, be equipped with ninth drive division (265) that drive movable support (264) moved on rail brackets (263), material loading clamping jaw (262) are slided along the vertical direction of moving support (264) and are connected in movable support (264), be equipped with tenth drive division (266) that drive material loading clamping jaw (262) removed on movable support (264).

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