CN116197421B - Numerical control lathe capable of improving feeding efficiency - Google Patents

Abstract

The invention relates to the technical field of numerically controlled lathes, in particular to a numerically controlled lathe capable of improving feeding efficiency, which comprises a lathe base, a spindle box, a spindle, a longitudinal slide carriage, a transverse slide carriage and a tool rest, wherein one end of the spindle extends out of the spindle box and faces the tool rest, the numerically controlled lathe further comprises a charging tray, the charging tray is rotationally connected to the outer part of the spindle box and faces one surface of the tool rest, a plurality of charging ports are uniformly formed in the charging tray in a penetrating manner near the edge, and the distance from the center of a circle of each charging port to the center of the charging tray is consistent with the distance from the center of the spindle to the rotation axis of the charging tray. According to the invention, a plurality of workpieces can be placed on the charging tray at the same time, and the charging tray can carry the workpieces to sequentially enter the processing stations, so that the charging can be completed only by rotating the charging tray after the workpieces at the processing stations are processed, and the charging efficiency is improved.

Description

Numerical control lathe capable of improving feeding efficiency

Technical Field

The invention relates to the technical field of numerically controlled lathes, in particular to a numerically controlled lathe capable of improving feeding efficiency.

Background

At present, a numerical control lathe is one of the numerical control lathes which are widely used, is mainly used for cutting processing of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of any cone angle, complex rotation inner and outer curved surfaces, cylindrical threads, conical threads and the like, and can be used for grooving, drilling, reaming, boring and the like.

The existing numerical control lathe generally comprises a lathe base, a spindle box, a spindle, a sliding seat, a tool rest and other structures, wherein one end of the spindle extends out of the spindle box and is connected with a three-jaw chuck. In the use process, one end of a workpiece is fixed on a three-jaw chuck and a spindle box is started, and then the position of a tool rest is moved through a sliding seat so as to carry out different processing treatments; and after the machining is finished, closing the spindle box, loosening the three-jaw chuck, taking out the machined workpiece, and then putting the workpiece into the next workpiece for continuous machining, so that the machining is repeated. After each processing, the material taking and discharging steps are needed to be carried out, so that the subsequent processing can be carried out, and the delay time is relatively shortened, and the working efficiency is affected.

In addition, the workpiece is required to be washed in the specific machining process, and the cutting fluid can play roles in cooling and lubricating, so that the machining precision of the workpiece is improved. However, although the cutting fluid is a nontoxic substance, and the worker does not have obvious damage when touching once occasionally, if touching for a long time, certain damage is generated to the skin of the human body, therefore, when the worker takes the processed workpiece, the surface of the workpiece is generally washed by an air gun to wash away the cutting fluid attached to the surface of the workpiece. This step is not only cumbersome, but also affects the efficiency of the worker in taking and discharging the material. In view of the above, we propose a numerically controlled lathe capable of improving the feeding efficiency to well solve the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a numerical control lathe capable of improving feeding efficiency, which is used for solving the problems in the background technology.

The invention is realized by the following technical scheme:

the utility model provides a numerical control lathe that can improve material loading efficiency, includes lathe base, headstock, main shaft, indulge slide carriage, horizontal slide carriage and knife rest, the one end of main shaft stretches out to the outside of headstock and just to the knife rest still includes:

the charging disc is rotationally connected to the outside of the spindle box and is opposite to one surface of the tool rest, a plurality of charging ports are uniformly formed in the charging disc in a penetrating manner near the edge part, the distance from the center of the charging ports to the rotation axis of the charging disc is consistent with the distance from the center shaft of the spindle to the rotation axis of the charging disc, the charging ports are rotationally connected with a butt joint, one surface of the butt joint, facing the tool rest, is fixedly connected with a three-jaw chuck, and one surface of the butt joint, facing the spindle box, is provided with a butt joint hole;

the driven joint is coaxially connected to the end part of the main shaft, a butt joint block capable of sliding along the axial direction of the main shaft is connected to the driven joint in a sliding manner, and a butt joint shaft used for being inserted into the butt joint hole is arranged on the butt joint block;

the blowing mechanism is arranged above the lathe base and comprises a blowing main pipe and a plurality of blowing branch pipes, the blowing main pipe is connected with an air source, the blowing branch pipes are communicated with the blowing main pipe, and the blowing ends of the blowing branch pipes are pointed to the circle center of the charging tray.

Optionally, the outside of charging tray still overlaps and is equipped with stable seat circle, stable seat circle with charging tray concentric shaft sets up, stable seat circle with the surface fixed connection of headstock, first bearing has been cup jointed to stable seat circle's inside, charging tray with the inner circle interference fit of first bearing is connected.

Optionally, the outer surface of the stable seat ring is also provided with a driving motor, an output shaft of the driving motor is coaxially connected with a driving gear, a through hole for the driving gear to pass through is formed in the side wall of the stable seat ring, a driven gear ring is fixedly sleeved on the outer surface of the charging tray, and the driven gear ring is meshed with the driving gear; the main air blowing pipe is arranged outside the stable seat ring, a plurality of air blowing branch pipes penetrate through the side wall of the stable seat ring and extend into the stable seat ring, and the main air blowing pipe is further provided with an electromagnetic valve.

Optionally, a power supply is further arranged outside the stable seat ring, two conductive copper sheets are fixedly arranged on the inner surface of the stable seat ring, the two conductive copper sheets are positioned between a three-jaw chuck of a processing station and a three-jaw chuck of a next station, the two conductive copper sheets are respectively connected with the positive electrode and the negative electrode of the power supply through wires, and the electromagnetic valve is connected with the conductive copper sheets in series; the driven gear ring consists of a ring edge and a plurality of teeth uniformly distributed on the outer surface of the ring edge, wherein one tooth of the charging port is made of a metal conductive material, the other teeth and the ring edge are made of insulating materials, and when the charging port rotates to a position where the conductive copper sheets are opposite to the region, the teeth are abutted to the two conductive copper sheets.

Optionally, the one end of driven joint back to the main shaft has seted up and has hidden the chamber, the butt joint piece activity set up in hide the intracavity, still seted up the sliding port that distributes along main shaft axis direction on driven joint's the lateral wall, radially protruding shaping has the sliding block on the lateral wall of butt joint piece, the sliding block activity run through the sliding port stretches out to hiding the intracavity.

Optionally, the side wall of stable seat circle just runs through to set up movable mouth in the position department of main shaft, sliding connection has the displacement piece in the movable mouth, the inner of displacement piece is equipped with the connecting rod, the end of connecting rod is equipped with the lantern ring, the lantern ring movable sleeve establish with outside the driven joint, just the lantern ring still is located the one side of butt joint piece back to the main shaft.

Optionally, a guiding groove axially distributed along the spindle is formed in the inner end of the hidden cavity, a guiding rod is movably inserted into the guiding groove, and one end of the guiding rod extends out of the guiding groove and is fixedly connected with the butt joint block.

Optionally, a pushing spring is further sleeved outside the guide rod, and two ends of the pushing spring are respectively abutted to the inner end of the hidden cavity and the butt joint block.

Compared with the prior art, the invention provides the numerical control lathe capable of improving the feeding efficiency, which has the following beneficial effects:

1. according to the invention, a plurality of workpieces can be placed on the charging tray at the same time, and the charging tray can carry the workpieces to sequentially enter the processing stations, so that the charging can be completed only by rotating the charging tray after the workpieces at the processing stations are processed, and the charging efficiency is improved;

2. the invention is also provided with a blow-drying mechanism which can blow the cutting fluid on the surface of the workpiece, thereby eliminating the need of manually holding an air gun to clean the workpiece and further improving the material-changing efficiency;

3. the invention is also provided with the conductive copper sheets, the periphery of the driven gear ring is provided with the metal teeth corresponding to the charging holes one by one, when the metal teeth are contacted with the two conductive copper sheets, the electromagnetic valve is electrified and the blow-drying mechanism starts to work, so that accurate blowing is realized.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic front view of a loading tray according to example 1 of the present invention;

FIG. 3 is a cross-sectional view of the structure of the loading tray of the present invention;

FIG. 4 is a schematic view of the structure of the driven joint of the present invention;

FIG. 5 is a schematic view of a stable seat ring according to embodiment 1 of the present invention;

FIG. 6 is an enlarged corresponding view at A in FIG. 3;

FIG. 7 is an enlarged view of FIG. 3 at B;

FIG. 8 is a schematic circuit diagram of the circuit connection of embodiment 1 of the present invention;

FIG. 9 is a schematic front view of a loading tray of example 2 of the present invention;

FIG. 10 is a schematic front view of a loading tray of example 2 of the present invention;

fig. 11 is a circuit connection diagram of embodiment 2 of the present invention.

In the figure: 100. a lathe base; 101. a spindle box; 102. a main shaft; 103. a vertical slide carriage; 104. a horizontal slide carriage; 105. a tool holder; 200. a charging tray; 201. a charging port; 202. butt joint; 203. a three-jaw chuck; 204. a butt joint hole; 205. a driven gear ring; 2051. a rim; 2052. teeth; 206. a rotating shaft; 207. a second bearing; 300. a driven joint; 301. a butt joint block; 302. a butt joint shaft; 303. hiding the cavity; 304. a sliding port; 305. a sliding block; 306. a guide groove; 307. a guide rod; 308. a pushing spring; 400. a blow-drying mechanism; 401. a blowing main pipe; 402. a blowing branch pipe; 403. an electromagnetic valve; 500. stabilizing the seat ring; 501. a first bearing; 502. a driving motor; 503. a drive gear; 504. a through hole; 505. a movable opening; 506. a displacement block; 507. a connecting rod; 508. a collar; 600. a power supply; 700. a conductive copper sheet; 701. a conductive block; 702. an insulating block.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-8, a numerically controlled lathe capable of improving feeding efficiency includes a lathe base 100, a headstock 101, a main shaft 102, a longitudinal slide carriage 103, a transverse slide carriage 104 and a tool rest 105, wherein one end of the main shaft 102 extends out of the headstock 101 and faces the tool rest 105, the numerically controlled lathe further includes a loading tray 200, the loading tray 200 is rotatably connected to the outside of the headstock 101 and faces one side of the tool rest 105, specifically, a rotating shaft 206 is arranged at the center position of the loading tray 200, the other end of the rotating shaft 206 is rotatably connected to the outer surface of the headstock 101, a plurality of loading ports 201 are uniformly arranged on the loading tray 200 and near the edge part in a penetrating manner, the distance from the center of the circle of the loading ports 201 to the rotating shaft center of the loading tray 200 is consistent with the distance from the center of the main shaft 102 to the rotating shaft center of the loading tray 200, an abutment 202 is rotatably connected to one side of the loading ports 201, the abutment 202 is fixedly connected to the three-jaw chuck 203 on one side of the tool rest 105, and an abutment hole 204 is formed on one side of the abutment 202 facing the headstock 101; wherein, the charging port 201 is also internally provided with a second bearing 207, and the butt joint 202 is in interference fit connection with the inner ring of the second bearing 207, so that the butt joint 202 is rotationally connected in the charging port 201; the three-jaw chuck 203 is fixedly connected to the butt joint 202 by a bolt, and both are coaxially disposed.

Further, the embodiment further includes a driven joint 300, the driven joint 300 is coaxially connected to the end of the main shaft 102, a docking block 301 capable of sliding along the axial direction of the main shaft 102 is slidably connected to the driven joint 300, and a docking shaft 302 for being inserted into the docking hole 204 is disposed on the docking block 301; specifically, a hidden cavity 303 is formed at one end of the driven joint 300 facing away from the main shaft 102, as shown in fig. 7, a butt joint block 301 is movably arranged in the hidden cavity 303, sliding ports 304 distributed along the axial direction of the main shaft 102 are further formed on the side wall of the driven joint 300, sliding blocks 305 are formed on the side wall of the butt joint block 301 in a protruding manner along the radial direction, and the sliding blocks 305 movably penetrate through the sliding ports 304 and extend into the hidden cavity 303; the inner end of the hidden cavity 303 is provided with a guide groove 306 which is axially distributed along the main shaft 102, a guide rod 307 is movably inserted into the guide groove 306, one end of the guide rod 307 extends out of the guide groove 306 and is fixedly connected with the butt joint block 301, a pushing spring 308 is sleeved outside the guide rod 307, two ends of the pushing spring 308 are respectively abutted with the inner end of the hidden cavity 303 and the butt joint block 301, and in a natural state, the pushing spring 308 is in a compressed state, namely the pushing spring 308 has a trend of pushing the butt joint block 301 forwards. In addition, as shown in fig. 4, the number of the docking holes 204 is four, and when the four docking shafts 302 are inserted into the docking holes 204, the spindle 102 can indirectly drive the three-jaw chuck 203 to rotate.

In addition, the outside of charging tray 200 still overlaps and is equipped with stable seat circle 500, and stable seat circle 500 and charging tray 200 concentric shaft set up, and stable seat circle 500 and the surface fixed connection of headstock 101, the inside of stable seat circle 500 has cup jointed first bearing 501, and charging tray 200 is connected with the inner circle interference fit of first bearing 501, consequently, charging tray 200 also with stable seat circle 500 normal running fit, the effect is the stability when improving charging tray 200 rotation. A movable opening 505 is arranged on the side wall of the stable seat ring 500 and is in penetrating connection with the position facing the main shaft 102, a displacement block 506 is connected in a sliding manner in the movable opening 505, a connecting rod 507 is arranged at the inner end of the displacement block 506, a lantern ring 508 is arranged at the tail end of the connecting rod 507, the lantern ring 508 is movably sleeved outside the driven joint 300, and the lantern ring 508 is also positioned at one side of the butt joint block 301 facing away from the main shaft 102; specifically, the displacement block 506 can slide in the movable opening 505 along the axial direction of the main shaft 102, two ends of the connecting rod 507 are respectively welded and fixed with the collar 508 and the displacement block 506, and when the displacement block 506 moves towards the side close to the main shaft 102, the collar 508 can push the butt joint block 301 to synchronously move, so that the butt joint shaft 302 is pulled out from the butt joint hole 204, and the machined workpiece can be replaced conveniently.

Further, the embodiment further comprises a blow-drying mechanism 400, the blow-drying mechanism 400 is arranged above the lathe base 100, the blow-drying mechanism 400 comprises a blow main pipe 401 and a plurality of blow branch pipes 402, the blow main pipe 401 is connected with an air source, the plurality of blow branch pipes 402 are communicated with the blow main pipe 401, and the blow ends of the plurality of blow branch pipes 402 are all directed to the circle center of the charging tray 200; wherein, the air supply can be the air compressor machine, and specifically, the main pipe 401 of blowing sets up in the outside of stabilizing the seat circle 500, and a plurality of branch pipes 402 of blowing all pass the lateral wall of stabilizing the seat circle 500 and stretch into in the stabilizing the seat circle 500, and still be provided with solenoid valve 403 on the main pipe of blowing, when solenoid valve 403 circular telegram, then branch pipe 402 of blowing blows, when solenoid valve 403 outage, then branch pipe 402 of blowing does not blow.

In addition, the outer surface of the stable seat ring 500 is also provided with a driving motor 502, an output shaft of the driving motor 502 is coaxially connected with a driving gear 503, a through hole 504 for the driving gear 503 to pass through is formed in the side wall of the stable seat ring 500, a driven gear ring 205 is fixedly sleeved on the outer surface of the charging tray 200, and the driven gear ring 205 is meshed with the driving gear 503; specifically, the driven gear ring 205 is composed of a rim 2051 and a plurality of teeth 2052 uniformly distributed on the outer surface of the rim 2051, wherein one tooth 2052 facing the charging port 201 is made of a metal conductive material, and the rest teeth 2052 and the rim 2051 are made of insulating materials; the driven gear ring 205 is made of PC, and the driven gear ring 205 is glued to the outer annular wall of the charging tray 200, which is different from the conventional gear, in this embodiment, the driven gear ring 205 has a plurality of teeth 2052 made of metal, specifically four teeth 2052 made of metal are respectively in one-to-one correspondence with the four charging ports 201, as shown in fig. 2, the teeth 2052 made of metal are on the same straight line with the center of the corresponding charging port 201 and charging tray 200, and the teeth 2052 made of metal are specifically made of copper and glued to the rim 2051.

The outer part of the stable seat ring 500 is also provided with a power supply 600, the inner surface of the stable seat ring 500 is fixedly provided with two conductive copper sheets 700, and the two conductive copper sheets 700 are positioned between the three-jaw chuck 203 of the processing station and the three-jaw chuck 203 of the next station, as shown in fig. 2; the two conductive copper sheets 700 are respectively connected with the anode and the cathode of the power supply 600 through wires, and the electromagnetic valve 403 is connected with the conductive copper sheets 700 in series; when the charging port 201 rotates to the area where the conductive copper sheets 700 are opposite, the teeth 2052 are abutted against the two conductive copper sheets 700; because the tooth 2052 facing the charging port 201 is made of metal, when the tooth 2052 made of metal contacts the two conductive copper sheets 700, the electromagnetic valve 403 is electrified, and the blow-drying mechanism 400 starts to work, so that the workpiece is precisely blown.

In summary, in the specific working process of the present embodiment, four workpieces are first fixed on four three-jaw chucks 203 respectively, wherein the lowest three-jaw chuck 203 is at the processing station, and the spindle 102 can drive the lowest three-jaw chuck 203 to rotate during the specific working process; after the workpiece at the processing position is processed, a worker firstly needs to manually push the displacement block 506 towards one side close to the main shaft 102 to enable the docking shaft 302 to be separated from the docking hole 204, and then the charging tray 200 is controlled to rotate 90 degrees clockwise through the driving motor 502 to enable the next three-jaw chuck 203 to move to the processing position. When the charging tray 200 rotates, one tooth 2052 made of metal can be in contact with two conductive copper sheets 700, so that the electromagnetic valve 403 is electrified, the blow-drying mechanism 400 works and blows air to the surface of a workpiece to blow off the cutting fluid on the surface of the workpiece, and manual cleaning is not needed; in addition, when the loading tray 200 is rotated in place, the worker can release the displacement block 506, and then the docking shaft 302 can be abutted against the end of the docking head 202 under the urging force of the urging spring 308, at this time, the worker can slightly rotate the three-jaw chuck 203 of the processing station, so that the docking shaft 302 can be smoothly aligned and inserted into the docking hole 204. Compared with the prior art, the material taking and discharging steps of the embodiment can be synchronously performed when the workpiece is processed, so that the material changing time is shortened, and the processing efficiency of enterprises is improved.

Example 2

Referring to fig. 9-11, the difference between the present embodiment and embodiment 1 is that: five air blowing branch pipes 402 in the embodiment are provided, and each air blowing branch pipe 402 is provided with an electromagnetic valve 403 to control the on-off of the air blowing branch pipe 402; the conductive copper sheet 700 is formed by a conductive block 701 and an insulating block 702 at intervals, wherein the conductive block 701 is five, the five conductive blocks 701 and the five electromagnetic valves 403 are in one-to-one correspondence, the insulating block 702 is made of plastic materials, the plurality of conductive blocks 701 and the plurality of insulating blocks 702 are arranged at intervals, and the conductive blocks 701 and the insulating blocks 702 are fixed by cementing. Since the number of the conductive copper sheets 700 is two, two conductive blocks 701 are corresponding to each electromagnetic valve 403, the two conductive blocks 701 are respectively connected with the positive and negative poles of the power supply 600 through wires, and the corresponding electromagnetic valve 403 is connected with the two conductive blocks 701 in series.

In the practical use process of the embodiment, when the charging tray 200 rotates, the teeth 2052 made of metal material are contacted with each conductive block 701 sequentially, so that the electromagnetic valves 403 can be powered on sequentially; specifically, when the workpiece moves to the opposite position of a certain air blowing branch pipe 402, the air blowing branch pipe 402 is just conducted and blows, and when the workpiece leaves the opposite position of the air blowing branch pipe 402, the electromagnetic valve 403 on the air blowing branch pipe 402 is just powered off, so that accurate air blowing can be realized. Compared with embodiment 1, the several air-blowing branch pipes 402 in this embodiment can work sequentially, but not all at the same time, so that accurate utilization of air can be realized; also, since only one of the air-blowing branch pipes 402 in embodiment 2 is operated at the same time, the air-blowing flow rate of this air-blowing branch pipe 402 is also greater than that of the single air-blowing branch pipe 402 in embodiment 1, thereby helping to blow the surface of the workpiece cleaner.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a numerical control lathe that can improve material loading efficiency, includes lathe base (100), headstock (101), main shaft (102), indulge slide carriage (103), horizontal slide carriage (104) and knife rest (105), the one end of main shaft (102) stretches out to the outside of headstock (101) and just to knife rest (105), its characterized in that still includes:

the device comprises a loading disc (200), wherein the loading disc (200) is rotationally connected to the outside of a spindle box (101) and is opposite to one surface of a tool rest (105), a plurality of loading ports (201) are uniformly and penetratingly formed in the loading disc (200) near the edge, the distance from the center of a circle of the loading ports (201) to the rotational axis of the loading disc (200) is consistent with the distance from the central axis of a spindle (102) to the rotational axis of the loading disc (200), an abutment (202) is rotationally connected to the loading ports (201), a three-jaw chuck (203) is fixedly connected to one surface of the abutment (202) facing the tool rest (105), and an abutment hole (204) is formed in one surface of the abutment (202) facing the spindle box (101);

the driven joint (300) is coaxially connected to the end part of the main shaft (102), a butt joint block (301) capable of axially sliding along the main shaft (102) is connected to the driven joint (300) in a sliding manner, and a butt joint shaft (302) for being inserted into the butt joint hole (204) is arranged on the butt joint block (301);

the blowing mechanism (400) is arranged above the lathe base (100), the blowing mechanism (400) comprises a blowing main pipe (401) and a plurality of blowing branch pipes (402), the blowing main pipe (401) is connected with an air source, the blowing branch pipes (402) are communicated with the blowing main pipe (401), and the blowing ends of the blowing branch pipes (402) are pointed to the circle center of the charging tray (200).

2. The numerical control lathe capable of improving feeding efficiency according to claim 1, wherein: the outside of charging tray (200) still overlaps and is equipped with stable seat circle (500), stable seat circle (500) with charging tray (200) concentric shaft sets up, stable seat circle (500) with the surface fixed connection of headstock (101), first bearing (501) have been cup jointed to the inside of stable seat circle (500), charging tray (200) with the inner circle interference fit of first bearing (501) is connected.

3. The numerical control lathe capable of improving feeding efficiency according to claim 2, wherein: the outer surface of the stable seat ring (500) is also provided with a driving motor (502), an output shaft of the driving motor (502) is coaxially connected with a driving gear (503), a through hole (504) for the driving gear (503) to pass through is formed in the side wall of the stable seat ring (500), a driven gear ring (205) is fixedly sleeved on the outer surface of the charging tray (200), and the driven gear ring (205) is meshed with the driving gear (503); the main air blowing pipe (401) is arranged outside the stable seat ring (500), a plurality of air blowing branch pipes (402) penetrate through the side wall of the stable seat ring (500) and extend into the stable seat ring (500), and the main air blowing pipe (401) is further provided with an electromagnetic valve (403).

4. A numerically controlled lathe capable of improving feeding efficiency according to claim 3, wherein: the external part of the stable seat ring (500) is also provided with a power supply (600), the inner surface of the stable seat ring (500) is fixedly provided with two conductive copper sheets (700), the two conductive copper sheets (700) are positioned between a three-jaw chuck (203) of a processing station and a three-jaw chuck (203) of a next station, the two conductive copper sheets (700) are respectively connected with the anode and the cathode of the power supply (600) through wires, and the electromagnetic valve (403) and the conductive copper sheets (700) are arranged in series; the driven gear ring (205) is composed of a ring edge (2051) and a plurality of teeth (2052) uniformly distributed on the outer surface of the ring edge (2051), wherein one tooth (2052) of the charging port (201) is made of a metal conductive material, the other teeth (2052) and the ring edge (2051) are made of insulating materials, and when the charging port (201) rotates to the region opposite to the conductive copper sheet (700), the teeth (2052) are abutted to the two conductive copper sheets (700).

5. The numerical control lathe capable of improving feeding efficiency according to claim 2, wherein: the utility model discloses a hidden chamber (303) has been seted up to one end of driven joint (300) dorsad main shaft (102), butt joint piece (301) activity set up in hide in chamber (303), sliding port (304) along main shaft (102) axis direction distribution have still been seted up on the lateral wall of driven joint (300), radially protruding shaping has sliding block (305) on the lateral wall of butt joint piece (301), sliding block (305) activity run through sliding port (304) and stretch out to hide in chamber (303).

6. The numerical control lathe capable of improving feeding efficiency according to claim 5, wherein: the side wall of the stable seat ring (500) is provided with a movable opening (505) in a penetrating manner at a position opposite to the main shaft (102), the movable opening (505) is connected with a displacement block (506) in a sliding manner, the inner end of the displacement block (506) is provided with a connecting rod (507), the tail end of the connecting rod (507) is provided with a lantern ring (508), the lantern ring (508) is movably sleeved outside the driven joint (300), and the lantern ring (508) is further positioned on one side of the butt joint block (301) opposite to the main shaft (102).

7. The numerical control lathe capable of improving feeding efficiency according to claim 6, wherein: the inner end of the hidden cavity (303) is provided with guide grooves (306) which are axially distributed along the main shaft (102), guide rods (307) are movably inserted into the guide grooves (306), and one ends of the guide rods (307) extend out of the guide grooves (306) and are fixedly connected with the butt joint blocks (301).

8. The numerical control lathe capable of improving feeding efficiency according to claim 7, wherein: the outside of guide bar (307) still overlaps is equipped with pushing spring (308), pushing spring (308) both ends respectively with hide the inner in chamber (303) and butt joint piece (301) butt joint.