CN210548665U

CN210548665U - Automatic electric spark puncher

Info

Publication number: CN210548665U
Application number: CN201920957217.XU
Authority: CN
Inventors: 徐宏伟; 崔祥
Original assignee: Changzhou Demalite Cnc Machinery Co ltd
Current assignee: Changzhou Demalite Cnc Machinery Co ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-05-19
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to an automatic electric spark perforating machine, which comprises a machine base, a workbench, a perforating mechanism, a feeding mechanism, an installation manipulator and a recovery manipulator, wherein the perforating mechanism is used for carrying out electric spark perforation on a workpiece and comprises a main frame, a discharging assembly, a lifting motor, a guide assembly, a positioning assembly and a nozzle assembly which are arranged on the main frame, the discharging assembly comprises a sliding block and a discharging rotating head, the feeding mechanism is used for automatically feeding copper pipes and comprises a fixing frame, a blanking plate, a storage cylinder, a rotary driving assembly and a protective assembly, the automatic electric spark perforating machine realizes the accurate and high-efficiency automatic pipe replacement and feeding of the copper pipes with different specifications by utilizing the mutual matching operation of the perforating mechanism, the feeding mechanism, the installation manipulator and the recovery manipulator, and simultaneously realizes the concentricity of the center holes of the copper pipes by utilizing the matching of the guide assembly, the, the accuracy of electric spark perforation is improved, the manual labor is reduced, and the production efficiency is greatly improved.

Description

Automatic electric spark puncher

Technical Field

The utility model relates to an electric spark perforating machine especially relates to an automatic perforating machine of electric spark.

Background

The electric spark perforation processing technology is a special processing technology, a thin metal copper pipe which continuously moves vertically is used as an electrode, pulse electric spark discharge is carried out on a workpiece to remove metal and form, a small hole with the minimum size of 0.015mm can be technically realized, and the electric spark perforation processing technology is an effective technical means for realizing the efficient processing of the tiny hole on the conductive materials such as metal alloy and the like.

In the process of porous electric spark perforation processing, when workpiece materials are removed through discharge erosion, the electrodes are continuously worn, in order to realize batch processing of hole groups, the consumption of copper pipe electrodes is very high, the copper pipe is often required to be manually replaced, the copper pipe is installed with a new copper pipe and a waste copper pipe is disassembled, and the manual excessive participation leads to low perforation efficiency of an electric spark perforating machine.

In the prior art, for feeding and supplementing of copper pipes, some enterprises research out and use principle structures including electrode pushing strips, electrode turntables and the like, so that the copper pipes are discharged from the electrode turntables for placing the copper pipes, but because the electrode turntables are used for placing the copper pipes with different specifications even though different diameter-sized pipelines are used for placing the copper pipes, the copper pipes are difficult to clamp and position according to different diameters of the copper pipes during blanking, the copper pipes are already in an inclined state during blanking due to arrangement, and the copper pipes are very unfavorable for subsequent procedures.

In addition, in the process of descending the copper pipe, when the electric spark rotary chuck drives the copper pipe to descend and punch, the central positions of the upper end and the lower end of the copper pipe are not on the same straight line, so that the rejection amount of the copper pipe is large, the forming effect of punching is poor, the copper pipe jumps and increases during rotation, and particularly for micropores with the hole diameter of 0.01mm-0.015mm, small eccentricity has great influence on the processing of the small holes, so that the matching arrangement and the automatic clamping of the guide assembly and the positioning assembly are very important during electric spark punching, further, after punching, the slight vibration of an electrode can possibly damage the holes which are just punched on the surface of a workpiece, and the nozzle for automatically adjusting the position is also very important.

SUMMERY OF THE UTILITY MODEL

How to integrate one full-automatic electric spark puncher changes the full automatization into by original semi-automatization, and the course of working need not any manual operation, does not need manual operation at the realization electric spark, and when the new copper pipe feeding of automatic installation, demolish useless copper pipe reloading, guarantee that the accuracy of punching is high, the problem that the punching effect is good to wait to solve urgently.

The utility model aims at prior art's defect, provide one kind and can realize the automatic puncher of electric spark that full automatization and accuracy are high, the perforation effect is good.

The utility model discloses a realize through following technical scheme: an automatic electric spark puncher comprises a base, a workbench, a punching mechanism, a feeding mechanism, an installation manipulator and a recovery manipulator;

the workbench is arranged on the base and used for placing a workpiece;

the punching mechanism is arranged above the workbench, the punching mechanism is used for performing electric spark punching on a workpiece and comprises a lifting main shaft, a discharging assembly, a lifting motor, a lifting screw rod, a guiding assembly, a positioning assembly and a nozzle assembly, the discharging assembly, the lifting motor, the lifting screw rod, the guiding assembly, the positioning assembly and the nozzle assembly are arranged on the lifting main shaft, the lifting main shaft is fixed on the base, the discharging assembly comprises a sliding block and a discharging rotating head arranged on the sliding block, the sliding block is arranged on the lifting main shaft, the bottom of the discharging rotating head is connected with a rotating chuck used for clamping a copper pipe, the lifting motor and the lifting screw rod are arranged in the lifting main shaft, the lifting motor is connected with the lifting screw rod, the sliding block is connected with a screw rod nut and used for driving the sliding block to ascend and descend vertically, the guiding assembly is correspondingly arranged below the rotating chuck and is, the positioning assembly is used for positioning the copper pipe, the nozzle assembly is arranged on one side of the positioning assembly and fixed on the lifting spindle, and the nozzle assembly is used for cooling the copper pipe during electric spark punching;

the feeding mechanism is arranged on one side of the perforating mechanism and is used for automatically feeding copper pipes and comprises a fixing frame, a blanking plate, a storage cylinder, a rotary driving assembly and a protective assembly, wherein the fixing frame is arranged on one side of the main frame, the blanking plate is fixed on the fixing frame, the storage cylinder is arranged on the blanking plate, the storage cylinder is in a circular pipe shape, a plurality of storage through holes for storing the copper pipes are uniformly distributed on the storage cylinder along the circumferential direction of the outer circumferential surface, the blanking plate is provided with a discharge hole, the discharge hole is arranged corresponding to the storage through holes and only used for discharging one storage through hole, the rotary driving assembly is connected with the storage cylinder, the rotary driving assembly is used for driving the storage cylinder to rotate relative to the blanking plate and enabling the copper pipes to be discharged from the discharge hole, the protective assembly is arranged at the bottom of the fixing frame and is, the copper pipe blanking device comprises a protective pressing plate and a second positive and negative tooth screw rod, wherein the protective pressing plate comprises a first protective block and a second protective block, the first protective block and the second protective block are abutted against each other to form a discharge groove column, the discharge groove column is used for blanking a copper pipe, a left connecting plate and a right connecting plate are connected onto the second positive and negative tooth screw rod, the left connecting plate is fixedly connected with the first protective block, the right connecting plate is fixedly connected with the second protective block, the second positive and negative tooth screw rod is connected with a second motor, and the first protective block and the second protective block are close to or far away from each other through a driving ball screw of the second motor so as to change the size of the discharge groove column and further blanking;

the mounting manipulator is arranged on one side of the storage cylinder and is used for transferring the copper pipe discharged from the storage cylinder to the position right below the rotary chuck;

the recycling manipulator is arranged on one side of the discharging assembly and used for detaching the perforated waste copper pipe.

In order to enable two ends of a copper pipe to be located on the same vertical straight line and reduce vibration during punching, a special guide assembly is arranged, the guide assembly comprises an installation fixing block, an installation base connected with the installation fixing block and an adjustable copper pipe stroking assembly, a cavity is formed between the installation fixing block and the installation base, the adjustable copper pipe stroking assembly is arranged in the cavity, the adjustable copper pipe stroking assembly comprises a first positive and negative screw rod, an orthodontic nut, an anti-thread nut, a first movable arm and a second movable arm, the first positive and negative screw rod is inserted in the cavity and is rotatably connected with the installation fixing block and the installation base through bearings, a positive thread section and an anti-thread section are respectively arranged on the first positive and negative screw rod, the orthodontic nut is provided with a positive thread section, the anti-thread nut is arranged on the anti-thread section, and one end of the first movable arm and one end of the second movable arm are respectively connected with the positive thread nut and, The anti-tooth nut is fixedly connected, the other end of the anti-tooth nut extends out of the cavity, symmetrical notches are formed between the other ends of the first movable arm and the second movable arm, the first positive and negative tooth lead screw can drive the positive tooth nut and the negative tooth nut to move inwards or outwards along the cavity simultaneously through rotation, so that the notches between the first movable arm and the second movable arm are controlled to be opened and closed, one ends of the first movable arm and the second movable arm are sleeved outside the positive tooth nut and the negative tooth nut respectively and are locked with the positive tooth nut and the negative tooth nut respectively through tightening screws, and the V-shaped notches between the first movable arm and the second movable arm are matched to form a diamond-shaped groove.

In order to further enable the two ends of the copper pipe to be positioned on the same vertical straight line and reduce vibration during perforation, a positioning assembly matched with the guide assembly is arranged, the positioning assembly comprises a first installation connecting block, a first spherical seat installation plate fixed on the first installation connecting block and a guide universal adjusting assembly arranged at one end of the first spherical seat installation plate, the guide universal adjusting assembly comprises a first spherical seat, a guide fixing seat, a cover plate and a guide, an installation hole is formed in the first spherical seat installation plate, the first spherical seat is fixed in the installation hole through the cover plate, an inner spherical surface is arranged in the first spherical seat, the cover plate comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate cover the first spherical seat in the installation hole, the spherical seat and the guide fixing seat are fixed with the installation connecting block through a locking screw, and the guide fixing seat is provided with a spherical head part, the ball head part is arranged in the inner spherical surface of the first spherical surface seat and can rotate along the inner spherical surface, a central hole is formed in the guider fixing seat, and the guider is coaxially fixed in the central hole.

In order to facilitate guiding and enhance accuracy, the first spherical seat comprises two symmetrically arranged clamping blocks, a central hole for assembling a guider fixing seat is formed between the two clamping blocks, a locking groove is formed in one side of the first spherical seat mounting plate and is communicated with the mounting hole, a locking screw capable of controlling the locking groove to be closed or opened is arranged on the locking groove, the guider fixing seat is provided with an extending part extending downwards, a threaded hole communicated with the central hole is formed in one side of the extending part, a guider fastening screw is arranged in the threaded hole, a taper guiding surface is formed in the upper end of the guider, the guider fixing seat is mounted in the first spherical seat, the position is adjusted, then the upper cover plate is positioned in the first spherical seat mounting plate through the upper cover plate and the lower cover plate, and in a natural state, the installation position of the guider is firstly ensured through a tool, namely, the central hole of the guider fixing seat is concentric and parallel with the central hole of, then lock the first spherical seat through the locking screw, remove frock installation director at last, fasten the screw through the director and die the director, realize locking, can not receive torsion at this in-process. After the tool is removed, because no torsion exists, the center holes of the guider and the guider fixing seat are completely concentric and parallel with the center hole of the main shaft of the rotating head of the puncher, and the operation is quite convenient.

In order to prevent the nozzle from aiming at the electrode when perforating, in time cool off, prevent that the electrode from striking the loss, set up the high nozzle assembly of oil spout accuracy, nozzle assembly includes second erection joint piece and sets up the angle valve case in second erection joint piece, be provided with water inlet and delivery port on the second erection joint piece, the delivery port is provided with universal faucet subassembly, universal faucet subassembly includes second sphere seat and faucet, the second sphere seat is fixed in the delivery port outer end, has interior sphere in the second sphere seat, the faucet includes rotating part and outlet pipe, the rotating part sets up in the interior sphere in the second sphere seat, the rotating part has the outer sphere with interior sphere matched with outward, outlet pipe and rotating part fixed connection, the outlet pipe sets up outside the second sphere seat.

In order to facilitate water spray cooling, the water outlet pipe and the rotating part are integrally formed, and the water outlet pipe and the rotating part are respectively provided with a water outlet channel communicated with the water outlet.

In order to facilitate the rotation of the storage cylinder relative to the lower blanking plate, the rotary driving assembly comprises a first motor, a triple gear set and a first rotary cylinder, a first connecting plate is fixed at the bottom of the first motor, a coupling, an intermediate gear shaft and a synchronous gear shaft are sequentially connected and arranged in the triple gear set in a matching mode, the coupling is connected with the output end of the first motor, the top of the synchronous gear shaft is connected with a connecting shaft, the top of the connecting shaft is fixedly connected with the inner circumferential surface of the storage cylinder, the first motor drives the intermediate gear shaft and drives the synchronous gear shaft to rotate, so that the connecting shaft drives the storage cylinder to rotate, the first rotary cylinder is connected to one side, close to the base, of the fixing frame, and the rotary cylinder is used for driving the.

In order to limit the position of the copper pipe after the copper pipe descends from the discharging groove column, a limiting disc is arranged below the discharging hole, the limiting disc is connected with a telescopic cylinder, and the telescopic cylinder is used for driving the limiting disc to ascend and descend.

In order to store copper pipes with different diameters, the storage through holes are uniformly distributed on the storage cylinder according to the size, a sealing cover is arranged, and the sealing cover is provided with a number mark.

In order to facilitate the installation of a new copper pipe and the removal of a waste copper pipe, the installation manipulator or the recovery manipulator comprises a first clamping jaw, a second clamping jaw, a finger cylinder, a guide sleeve, a hollow optical axis, a double-rod cylinder and a second rotary cylinder, the first clamping jaw and the second clamping jaw are both connected with the finger cylinder, the finger cylinder is used for driving the first clamping jaw and the second clamping jaw to mutually approach and clamp the copper pipe, one end of the hollow optical shaft is connected with a first connecting block, the other end of the hollow optical shaft is connected with a second connecting block, a guide sleeve fixing hole is formed in the second connecting block, the guide sleeve is arranged in the guide sleeve fixing hole, the hollow optical axis is arranged in the guide sleeve, the second connecting block is connected with the double-rod cylinder, the double-rod cylinder is used for driving the finger cylinder to stretch and retract, the second rotary cylinder is connected with a third connecting block and used for driving the third connecting block to rotate so as to drive the installation manipulator or the recovery manipulator to rotate.

The utility model has the advantages that: this automatic puncher of electric spark utilizes perforating mechanism, feed mechanism, installation manipulator and the operation of mutually supporting of retrieving the manipulator, realizes the accurate of the copper pipe of different specifications, high-efficiently automatic tube replacement feeding, utilizes the cooperation of direction subassembly, locating component and rotatory chuck to realize that the centre bore of copper pipe is concentric simultaneously, has improved the fenestrate accuracy of electric spark, utilizes the automatic useless copper pipe of demolising of manipulator of retrieving at last, further reduces the hand labor, has greatly improved production efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the perforating mechanism and the feeding mechanism;

FIG. 3 is a top view of the guide assembly of the piercing mechanism;

FIG. 4 is a side view of a guide assembly of the piercing mechanism;

3 FIG. 35 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 34 3; 3

FIG. 6 is a schematic view of the configuration of the guide assembly of the piercing mechanism when the first and second arms are engaged;

FIG. 7 is a cross-sectional view of a positioning assembly of the piercing mechanism;

FIG. 8 is a top view of the positioning assembly of the piercing mechanism;

FIG. 9 is a schematic view of the nozzle assembly and positioning assembly of the piercing mechanism in combination;

FIG. 10 is a cross-sectional view of a nozzle assembly of the piercing mechanism;

FIG. 11 is a right side view of the feed mechanism;

FIG. 12 is a top view of the storage cylinder of the feed mechanism;

FIG. 13 is a cross-sectional view of the feed mechanism;

FIG. 14 is a cross-sectional view of the installation or recovery robot;

in the figure: 1. a machine base; 2. a work table; 3. a punching mechanism; 31. lifting the main shaft; 32. a discharge assembly; 321. A slider; 322. a discharge rotating head; 323. rotating the chuck; 33. a guide assembly; 331. an orthodontic nut; 332. a first movable arm; 333. a second movable arm; 334. mounting a fixed block; 335. a first positive and negative tooth screw rod; 336. a counter-threaded nut; 337. installing a base; 338. a bearing; 339. a notch; 34. a positioning assembly; 341. A first spherical seat mounting plate; 342. a first mounting connection block; 343. a cover plate; 344. a first spherical seat; 345. a guider fixing seat; 346. a guide; 347. fixing screws; 348. locking screws; 349. a locking groove; 35. a nozzle assembly; 351. mounting a plate; 352. an angle valve spool; 353. a second mounting connecting block; 354. A water inlet; 355. a water outlet; 356. a standby water outlet; 357. a second spherical seat; 358. a rotating part; 359. an oil outlet pipe; 4. a feeding mechanism; 41. a fixed mount; 42. a blanking plate; 421. a discharge port 43 and a storage cylinder; 431. a storage via; 432. sealing the cover; 441. a first motor; 442. a triple gear set; 443. a first swing cylinder; 444. a coupling; 445. an intermediate gear shaft; 446. a connecting shaft; 447. a synchronizing gear shaft; 451. a first guard block; 452. a second guard block; 453. a second positive and negative tooth screw rod; 454. a left connecting plate; 455. a right connecting plate; 456. a second motor; 5. installing a mechanical arm; 51. a first jaw; 52. a second jaw; 53. a finger cylinder; 54. a guide sleeve; 541. a hollow optical axis; 55. a double-rod cylinder; 56. a second rotary cylinder; 57. a first connection block; 58. a second connecting block; 59. a third connecting block; 6. a recovery manipulator; 7. a limiting disc.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

As shown in fig. 1 and 2, the automatic electric spark drilling machine comprises a machine base 1, a workbench 2, a drilling mechanism 3, a feeding mechanism 4, a mounting manipulator 5 and a recovery manipulator 6, wherein the workbench 2 is arranged on the machine base 1, and the workbench 2 is used for placing workpieces. The punching mechanism 3 is arranged above the workbench 2, the punching mechanism 3 is used for performing electric spark punching on a workpiece, and comprises a lifting spindle 31, a discharging assembly 32, a lifting motor, a lifting lead screw, a guiding assembly 33, a positioning assembly 34 and a nozzle assembly 35 which are arranged on the lifting spindle 31, the lifting spindle 31 is fixed on the machine base 1, the discharging assembly 32 comprises a sliding block 321 and a discharging rotating head 322 arranged on the sliding block 321, the sliding block 321 is arranged on the lifting spindle 31, a first travel switch is arranged at the bottom of the lifting spindle 31, a track plate is arranged at the side, abutted against the sliding block 321, of the lifting spindle 31, a sleeve plate is connected to the back of the sliding block 321, the sliding block 321 is arranged on the track plate through a sleeve plate step and can lift up and down along the track plate, a second travel switch is connected to the bottom of the sleeve plate, the first travel switch and the second travel switch are arranged in a matched manner, when the sleeve plate drives the sliding block 321 to move, the slide block 321 is not lowered any more and the discharge rotating head 322 is rotated no more to perform the rotating discharge, a rotating chuck 323 for clamping the copper tube is connected to the bottom of the discharge rotating head 322, the lifting motor and the lifting screw rod are arranged in the lifting main shaft 31, the lifting motor is connected with the sliding block 321 and is used for driving the sliding block 321 to lift up and down, the lifting motor is connected with the lifting screw rod, the sliding block 321 drives the lifting screw rod through the lifting motor to realize lifting, the guide assembly 33 is correspondingly arranged below the rotating chuck 323 and at the bottom of the lifting spindle 31, the guide assembly 33 is used for installing and guiding the copper pipe, the positioning component 34 is arranged below the guide component 33 and above the workbench 2, the positioning component 34 is used for positioning the copper pipe, the nozzle assembly 35 is arranged on one side of the positioning assembly 34 and fixed on the main frame 31, and the nozzle assembly 35 is used for cooling a copper pipe during electric spark punching;

as shown in fig. 3-6, in order to make the middle and two ends of the copper tube in the same vertical line and reduce vibration during punching, a special guide assembly 33 is provided, the guide assembly 33 includes a mounting fixing block 334, a mounting base 337 connected with the mounting fixing block 334, and an adjustable copper stroking tube assembly, a cavity is formed between the mounting fixing block 334 and the mounting base 337, the adjustable copper stroking tube assembly is disposed in the cavity, the adjustable copper stroking tube assembly includes a first positive and negative screw rod 335, a positive screw nut 331, a negative screw nut 336, a first movable arm 332, and a second movable arm 333, the first positive and negative screw rod 335 is inserted in the cavity and rotatably connected with the mounting fixing block 334 and the mounting base 337 through a bearing 338, the first positive and negative screw rod 335 is respectively provided with a positive screw thread section and a negative screw section, the positive screw nut 331 is provided with a positive screw section, the anti-tooth nut 336 is arranged on the anti-tooth thread section, one end of each of the first movable arm 332 and the second movable arm 333 is fixedly connected with the corresponding one of the orthodontic nut 331 and the anti-tooth nut 336, the other end of each of the first movable arm 332 and the second movable arm 333 extends out of the cavity, a symmetrical notch 339 is formed between the other end of each of the first movable arm 332 and the second movable arm 333, the first positive and negative tooth lead screw 335 can drive the corresponding one of the orthodontic nut 331 and the corresponding one of the anti-tooth nut 336 to move inwards or outwards along the cavity through rotation, the telescopic cylinder is used for driving the notch 339 between the first movable arm 332 and the second movable arm 333 to be opened and closed, one end of each of the first movable arm 332 and the second movable arm 333 is sleeved outside the corresponding one of the orthodontic nut 331 and the corresponding one of the anti-tooth nut 336 and is locked with the corresponding one of the orthodontic nut 331 and the corresponding one of the anti-.

As shown in fig. 7 and 8, in order to further enable two ends of the copper pipe to be in the same vertical line and reduce vibration during punching, a positioning assembly 34 is provided, which is matched with the guiding assembly 33, the positioning assembly 34 includes a first mounting connecting block 342, a first spherical seat mounting plate 341 fixed on the first mounting connecting block 342, and a guide universal adjusting assembly provided at one end of the first spherical seat mounting plate 341, the guide universal adjusting assembly includes a first spherical seat 344, a guide fixing seat 345, a cover plate 343 and a guide 346, the first spherical seat mounting plate 341 is provided with a mounting hole, the first spherical seat 344 is fixed in the mounting hole through the cover plate 343, the cover plate is fixed through a fixing screw 347, the first spherical seat 344 has an inner spherical surface therein, the cover plate 343 includes an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate cover the first spherical seat 344 in the mounting hole, the guider fixing seat 345 is provided with a ball head which is arranged in an inner spherical surface of the first spherical seat 344 and can rotate along the inner spherical surface, a central hole is formed in the guider fixing seat 345, the guider 346 is coaxially fixed in the central hole, in order to facilitate guiding and enhance accuracy, the first spherical seat 344 comprises two symmetrically arranged clamping blocks, a central hole for assembling the guider fixing seat 345 is formed between the two clamping blocks, one side of the first spherical seat mounting plate 341 is provided with a locking groove 349, the locking groove 349 is communicated with the mounting hole, the locking groove 349 is provided with a locking screw 348 which can drive the locking groove 349 to close or open, the guider fixing seat 345 is provided with an extension part which extends downwards, one side of the extension part is provided with a threaded hole communicated with the central hole, and the fastening screw of the guider 346 is arranged in the threaded hole, the upper end of the guide 346 is provided with a tapered guide surface, so that the copper pipe can slide to the center along the tapered guide surface.

As shown in fig. 9 and 10, in order to improve the punching efficiency and the precision of the through hole, and reduce the electrode loss, a controllable nozzle assembly 35 is provided, the nozzle assembly 35 includes a second mounting connection block 353 and an angle valve spool 352 disposed in the second mounting connection block 353, the second mounting connection block 353 is provided with a water inlet and a water outlet, the water outlet is provided with a universal water nozzle assembly, the universal water nozzle assembly includes a second spherical seat 357 and a water nozzle, the second spherical seat 357 is fixed at the outer end of the water outlet, the second spherical seat 357 has an inner spherical surface, the water nozzle includes a rotating portion 358 and a water outlet pipe 359, the rotating portion 358 is disposed in the inner spherical surface of the second spherical seat 357, the rotating portion 358 has an outer spherical surface matching with the inner spherical surface, the water outlet pipe 359 is fixedly connected with the rotating portion 358, the water outlet pipe 359 is disposed outside the second spherical seat 357, in order to facilitate water spray cooling, the water outlet pipe 359 and the rotating portion 358 are integrally formed, and the water outlet pipe 359 and the rotating portion 358 are respectively provided with a water outlet passage communicated with the water outlet.

As shown in fig. 11-13, the feeding mechanism 4 is disposed at one side of the piercing mechanism 3, the feeding mechanism 4 is used for automatically feeding copper tubes, and includes a fixing frame 41, a blanking plate 42, a storage cylinder 43, a rotary driving component and a protection component, the fixing frame 41 is disposed at one side of the main frame 31, the blanking plate 42 is fixed on the fixing frame 41, the storage cylinder 43 is disposed on the blanking plate 42, the storage cylinder 43 is in a circular tube shape and is circumferentially and uniformly distributed with a plurality of storage through holes 431 for storing copper tubes along an outer circumferential surface, the storage through holes are U-shaped holes with openings facing the outer circumferential surface of the storage cylinder 43, in order to store copper tubes with different diameters, the storage through holes 431 are provided with a plurality of groups and are uniformly distributed on the storage cylinder, the storage through holes 431 can be through holes with different diameters, the storage through holes 431 are provided with a sealing cover 432, the sealing cover 432 is, according to the mark, copper pipes of different specifications are rotated, the discharging plate 42 is provided with a discharging port 421, the discharging port 421 corresponds to the storage through hole 431 and only allows one storage through hole 431 to discharge, the rotary driving assembly is connected with the storage cylinder 43 and is used for driving the storage cylinder 43 to rotate relative to the discharging plate 42 and discharging the copper pipes from the discharging port 421, in order to facilitate driving the storage cylinder 43 to rotate relative to the discharging plate 42, the rotary driving assembly comprises a first motor 441, a triple gear set 442 and a first rotary cylinder 443, a first connecting plate is fixed at the bottom of the first motor 441, a coupling 444, an intermediate gear shaft 445 and a synchronous gear shaft 447 are sequentially connected and matched in the triple gear set 442, the coupling 444 is connected with the output end of the first motor 441, the top of the synchronous gear shaft 447 is connected with a connecting shaft 446, and the bottom of the connecting shaft 446 is provided with a bearing, the top of the connecting shaft 446 is fixedly connected with the inner circumferential surface of the storage cylinder 43, the first motor 441 drives the intermediate gear shaft 445 and drives the synchronizing gear shaft 447 to rotate, so that the connecting shaft 446 drives the storage cylinder 43 to rotate, the first rotary cylinder 443 is connected to one side of the fixed frame 41 close to the lifting main shaft 31, and the rotary cylinder is used for driving the fixed frame 41 to rotate. The protective assembly is arranged at the bottom of the fixing frame 41 and is used for limiting the dropping position of a copper pipe so as to ensure the accuracy of the blanking position of the copper pipe, and comprises a protective pressing plate and a second positive and negative tooth screw rod 453, wherein the protective pressing plate comprises a first protective block 451 and a second protective block 452, the first protective block 451 and the second protective block 452 are mutually abutted to form a discharge chute column for blanking the copper pipe, a left connecting plate 454 and a right connecting plate 455 are connected to the second positive and negative tooth screw rod 453, the left connecting plate 454 is fixedly connected with the first protective block 451, the right connecting plate 455 is fixedly connected with the second protective block 452, the second positive and negative tooth screw rod 453 is connected with a second motor 456, the first protective block 451 and the second protective block 452 are mutually close to or mutually far away through a driving ball screw of the second motor 456 so as to change the size of the discharge chute column and then blanking, the position of the copper pipe is limited after the copper pipe descends from the discharge, the discharge gate 421 below is equipped with spacing dish 7, spacing dish 7 is connected with telescopic cylinder, telescopic cylinder is used for driving its lift, and after the copper pipe fell into spacing dish 7, the copper pipe was pressed from both sides tightly to finger cylinder 53 drive clamping jaw 51 and clamping jaw 52 on the installation hand 5, and telescopic cylinder drive spacing dish 7 descends, dodges out the motion that double-pole cylinder 55 on the installation manipulator promoted finger cylinder 53 and the tight copper pipe of clamp moved to under the rotary chuck 323.

As shown in fig. 14, the installation manipulator 5 is disposed at one side of the storage cylinder 43, the installation manipulator 5 is used for transferring the copper tubes discharged from the storage cylinder 43 to the rotary chuck 323, the recovery manipulator 6 is disposed at one side of the discharge assembly 32, the recovery manipulator 6 is used for removing the waste copper tubes after perforation, one side of the recovery manipulator 6 is provided with a recovery barrel, the waste copper tubes can be placed in the recovery barrel after the recovery manipulator 6 recovers the waste copper tubes, in order to install new copper tubes and remove the waste copper tubes, the installation manipulator 5 or the recovery manipulator 6 comprises a first clamping jaw 51, a second clamping jaw 52, a finger cylinder 53, a guide sleeve 54, a hollow optical axis 541, a two-rod cylinder 55 and a second rotary cylinder 56, the first clamping jaw 51 and the second clamping jaw 52 are both connected with the finger cylinder 53, the finger cylinder 53 is used for driving the first clamping jaw 51 and the second clamping jaw 52 to approach each other and clamp the copper tubes, the utility model discloses a mechanical equipment, including cavity optical axis 541, guide pin cylinder 55, hollow optical axis 541, double-rod cylinder 56, double-rod cylinder 55, double-rod cylinder 54, second revolving cylinder 56, and thereby the installation manipulator 5 is driven to rotate or the recovery manipulator 6 is rotated, hollow optical axis 541 one end is connected with first connecting block 57 and its other end is connected with second connecting block 58, the guide pin bushing fixed orifices has been seted up on the second connecting block 58, guide pin bushing 54 sets up in the guide pin bushing fixed orifices, hollow optical axis 541 sets up in guide pin bushing 54, second connecting block 58.

The utility model discloses a theory of operation: by utilizing the fact that a large number of copper pipes with different diameters can be placed in the storage cylinder 43, the mounting manipulator 5 rotates to the lower portion of the discharge groove column, namely the upper portion of the limiting disc 7, the first clamping jaw 51 and the second clamping jaw 52 are in a state of being far away from each other, at the moment, the storage cylinder 43 rotates, one storage through hole is aligned with the discharge port 421, the copper pipes are discharged from the discharge port 421 to reach the discharge groove column formed by the first protection block 451 and the second protection block 452, according to the diameter of the copper pipes, the size of the discharge groove column is changed by the mutual distance or approach of the first protection block 451 and the second protection block 452, so that the copper pipes are well limited and pass through, at the moment, the finger cylinder 53 is used for driving the first clamping jaw 51 and the second clamping jaw 52 to approach each other to clamp the copper pipes, the double-rod cylinder 55 acts to push the finger cylinder 53 to transfer the copper pipes to the notch 339 of the guide assembly 33, and by utilizing the relative movement, the telescopic cylinder can be adjusted according to copper pipes of different models and specifications to drive the first movable arm 332 and the second movable arm 333 to drive the size of the notch 339 according to the diameter of the copper pipe, and the central position of the copper pipe is constant all the time in the adjustment process to reduce the integral jumping error of the copper pipe, so that the copper pipe is accurately and efficiently poured into the notch 339, at this time, the slider 321 drives the discharge rotating head 322 and the rotating chuck 323 to descend, after the copper pipe is clamped by the rotating chuck 323, the rotating chuck 323 continues to drive the copper pipe to descend into the guide 346 in the positioning assembly 34, and then the installation manipulator 5 reversely moves to return to the initial origin. Positioning assembly 34 utilizes the spherical surface cooperation to realize universal regulation, guarantee through the frock that director 346 is concentric with the centre bore of rotating chuck 323, and then carry out the electrode perforation, and simultaneously, nozzle assembly 35 sprays spark oil and cools off the electrode, shorten when the copper pipe can not regard as the electrode to use in the use, retrieve manipulator 6 and rotate to rotating chuck 323 below and press from both sides tight copper pipe additional, after rotating chuck 323 unclamped the copper pipe, retrieve manipulator 6 and remove the copper pipe, meanwhile, installation manipulator 5 presss from both sides the copper pipe dress in direction subassembly 33, carry out next operation cycle.

Compared with the prior art, the automatic electric spark perforating machine utilizes the mutual matching operation of the perforating mechanism 3, the feeding mechanism 4, the mounting manipulator 5 and the recovery manipulator 6 to realize accurate and efficient automatic tube replacement and feeding of copper tubes with different specifications, and simultaneously utilizes the matching of the guide component 33, the positioning component 34 and the rotary chuck 323 to realize the concentricity of the center holes of the copper tubes, thereby improving the accuracy of electric spark perforation, and finally utilizes the recovery manipulator 6 to automatically remove waste copper tubes, further reducing the manual labor and greatly improving the production efficiency.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. An automatic electric spark perforating machine is characterized in that: comprises a base (1), a workbench (2), a perforating mechanism (3), a feeding mechanism (4), a mounting manipulator (5) and a recovery manipulator (6);

the workbench (2) is arranged on the machine base (1), and the workbench (2) is used for placing workpieces;

the punching mechanism (3) is arranged above the workbench (2), the punching mechanism (3) is used for performing electric spark punching on a workpiece, and comprises a lifting spindle (31), a discharging assembly (32), a lifting screw rod, a lifting motor, a guiding assembly (33), a positioning assembly (34) and a nozzle assembly (35) which are arranged on the lifting spindle (31), the lifting spindle (31) is fixed on the machine base (1), the discharging assembly (32) comprises a sliding block (321) and a discharging rotating head (322) arranged on the sliding block (321), the sliding block (321) is arranged on the lifting spindle (31), the bottom of the discharging rotating head (322) is connected with a rotating chuck (323) used for clamping a copper pipe, the lifting motor is connected with the lifting screw rod, the lifting motor and the lifting screw rod are both arranged in the lifting spindle (31), and the lifting motor drives the sliding block (321) to lift up and down through a screw rod nut, the guide assembly (33) is correspondingly arranged below the rotary chuck (323) and positioned at the bottom of the lifting spindle (31), the guide assembly (33) is used for installing and guiding a copper pipe, the positioning assembly (34) is arranged below the guide assembly (33) and positioned above the workbench (2), the positioning assembly (34) is used for positioning the copper pipe, the nozzle assembly (35) is arranged on one side of the positioning assembly (34) and fixed on the lifting spindle (31), and the nozzle assembly (35) is used for cooling the copper pipe during electric spark perforation;

the feeding mechanism (4) is arranged on one side of the perforating mechanism (3), the feeding mechanism (4) is used for automatically feeding copper pipes and comprises a fixing frame (41), a blanking plate (42), a storage cylinder (43), a rotary driving assembly and a protection assembly, the fixing frame (41) is arranged on one side of the lifting spindle (31), the blanking plate (42) is fixed on the fixing frame (41), the storage cylinder (43) is arranged on the blanking plate (42), the storage cylinder (43) is in a circular tube shape, a plurality of storage through holes (431) for storing the copper pipes are uniformly distributed on the circumferential direction of the outer circumferential surface of the storage cylinder (43), the blanking plate (42) is provided with a discharge port (421), the discharge port (421) and the storage through holes (431) are correspondingly arranged and only provided for discharging one storage through hole (431), the rotary driving assembly is connected with the storage cylinder (43), and is used for driving the storage cylinder (43) to rotate relative to the blanking plate (42) and enabling the copper pipes to be discharged from the discharge port, the protective assembly is arranged at the bottom of the fixing frame (41) and used for limiting the dropping position of a copper pipe so as to ensure the accuracy of the blanking position of the copper pipe, and comprises a protective pressing plate and a second positive and negative tooth screw rod (453), wherein the protective pressing plate comprises a first protective block (451) and a second protective block (452), the first protective block (451) and the second protective block (452) are abutted against each other to form a discharge chute column used for blanking the copper pipe, a left connecting plate (454) and a right connecting plate (455) are connected to the second positive and negative tooth screw rod (453), the left connecting plate (454) is fixedly connected with the first protective block (451), the right connecting plate (455) is fixedly connected with the second protective block (452), the second positive and negative tooth screw rod (453) is connected with a second motor (456), and the first protective block (451) and the second protective block (452) are close to or far away from each other through a driving ball screw rod of the second motor (456), so as to change the size of the discharging groove column and then discharge;

the mounting manipulator (5) is arranged on one side of the storage cylinder (43), and the mounting manipulator (5) is used for transferring the copper pipe discharged from the storage cylinder (43) to the position right below the rotary chuck (323);

the recovery manipulator (6) is arranged on one side of the discharge assembly (32), and the recovery manipulator (6) is used for dismounting the punched waste copper pipe.

2. The automated spark erosion drilling machine as set forth in claim 1, wherein: the guide assembly (33) comprises an installation fixing block (334), an installation base (337) connected with the installation fixing block (334) and an adjustable copper pipe stroking assembly, a cavity is formed between the installation fixing block (334) and the installation base (337), the adjustable copper pipe stroking assembly is arranged in the cavity, the adjustable copper pipe stroking assembly comprises a first positive and negative screw rod (335), an orthodontic nut (331), an anti-screw nut (336), a first movable arm (332) and a second movable arm (333), the first positive and negative screw rod (335) is inserted in the cavity and is rotatably connected with the installation fixing block (334) and the installation base (337) through a bearing (338), the first positive and negative screw rod (335) is respectively provided with an orthodontic screw thread section and an anti-screw thread section, the orthodontic nut (331) is provided with an orthodontic screw thread section, the anti-screw nut (336) is arranged on the anti-screw thread section, one ends of the first movable arm (332) and the second movable arm (333) are respectively and fixedly connected with the orthodontic nut (331) and the anti-orthodontic nut (336), the other ends extend out of the cavity, and the other ends of the first movable arm (332) and the second movable arm (333) are provided with symmetrical notches (339), the first positive and negative tooth screw rod (335) can simultaneously move inwards or outwards along the cavity by rotationally driving the positive tooth nut (331) and the negative tooth nut (336), thereby controlling the opening and closing of the notch 339 between the first movable arm 332 and the second movable arm 333, one ends of the first movable arm (332) and the second movable arm (333) are respectively sleeved outside the orthodontic nut (331) and the anti-tooth nut (336), and respectively realize locking with the orthodontic nut (331) and the contra-dental nut (336) through a set screw, notches (339) between the first movable arm (332) and the second movable arm (333) are matched to form a diamond-shaped groove.

3. The automated spark erosion drilling machine as set forth in claim 1, wherein: the positioning assembly (34) comprises a first mounting connecting block (342), a first spherical seat mounting plate (341) fixed on the first mounting connecting block (342), and a guider universal adjusting assembly arranged at one end of the first spherical seat mounting plate (341), the guider universal adjusting assembly comprises a first spherical seat (344), a guider fixing seat (345), a cover plate (343) and a guider (346), the first spherical seat mounting plate (341) is provided with a mounting hole, the first spherical seat (344) is fixed in the mounting hole through the cover plate (343), the first spherical seat (344) is internally provided with an inner spherical surface, the cover plate (343) comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate cover the first spherical seat (344) in the mounting hole, the guider fixing seat (345) is provided with a ball head part, and the ball head part is arranged in the inner spherical surface of the first spherical seat (344), and can rotate along the inner spherical surface, a central hole is arranged in the guider fixing seat (345), and the guider (346) is coaxially fixed in the central hole.

4. The automated spark erosion drilling machine as set forth in claim 3, wherein: first sphere seat (344) includes the clamp splice that two symmetries set up, forms the centre bore that is used for assembling director fixing base (345) between two clamp splices, locking groove (349) have been seted up to first sphere seat mounting panel (341) one side, locking groove (349) and mounting hole intercommunication are provided with locking screw (348) that steerable locking groove (349) is closed or opened on locking groove (349), director fixing base (345) has downwardly extending's extension, the screw hole that is linked together with the centre bore is seted up to extension one side, threaded hole is provided with director (346) fastening screw, tapering spigot surface has been seted up to director (346) upper end.

5. The automated spark erosion drilling machine as set forth in claim 1, wherein: the nozzle assembly (35) comprises a second mounting connection block (353) and an angle valve spool (352) arranged in the second mounting connection block (353), a water inlet and a water outlet are formed in the second mounting connection block (353), a universal water outlet nozzle assembly is arranged on the water outlet, the universal water outlet nozzle assembly comprises a second spherical seat (357) and a water outlet nozzle, the second spherical seat (357) is fixed at the outer end of the water outlet, an inner spherical surface is arranged in the second spherical seat (357), the water outlet nozzle comprises a rotating portion (358) and a water outlet pipe (359), the rotating portion (358) is arranged in the inner spherical surface of the second spherical seat (357), an outer spherical surface matched with the inner spherical surface is arranged outside the rotating portion (358), the water outlet pipe (359) is fixedly connected with the rotating portion (358), and the water outlet pipe (359) is arranged outside the second spherical seat (357).

6. The automated spark erosion drilling machine as set forth in claim 5, wherein: outlet pipe (359) and rotating part (358) integrated into one piece, outlet pipe (359), rotating part (358) have respectively with the delivery port intercommunication go out water channel.

7. The automated spark erosion drilling machine as set forth in claim 1, wherein: the rotary driving assembly comprises a first motor (441), a triple gear set (442) and a first rotary cylinder (443), a first connecting plate is fixed at the bottom of the first motor (441), a shaft coupler (444), an intermediate gear shaft (445) and a synchronous gear shaft (447) are sequentially connected and matched in the triple gear set (442), the shaft coupler (444) is connected with the output end of the first motor (441), a connecting shaft (446) is connected to the top of the synchronous gear shaft (447), the top of the connecting shaft (446) is fixedly connected with the inner circumferential surface of the storage cylinder (43), the first motor (441) drives the intermediate gear shaft (445) and drives the synchronous gear shaft (447) to rotate, so that the connecting shaft (446) drives the storage cylinder (43) to rotate, and the first rotary cylinder (443) is connected to one side, close to the lifting main shaft (31), of the fixing frame (41), the rotary cylinder is used for driving the fixing frame (41) to rotate.

8. The automated spark erosion drilling machine as set forth in claim 2, wherein: discharge gate (421) below is equipped with spacing dish (7), spacing dish (7) are connected with telescopic cylinder, telescopic cylinder is used for driving spacing dish (7) and goes up and down.

9. The automated spark erosion drilling machine as set forth in claim 1, wherein: the storage through holes (431) are provided with a plurality of groups and are evenly distributed on the storage cylinder, the storage through holes (431) are provided with sealing covers (432), and the sealing covers (432) are provided with digital marks.

10. The automated spark erosion drilling machine as set forth in claim 1, wherein: the installation manipulator (5) or the recovery manipulator (6) comprises a first clamping jaw (51), a second clamping jaw (52), a finger cylinder (53), a guide sleeve (54), a hollow optical axis (541) double-rod cylinder (55) and a second rotary cylinder (56), wherein the first clamping jaw (51) and the second clamping jaw (52) are connected with the finger cylinder (53), the finger cylinder (53) is used for driving the first clamping jaw (51) and the second clamping jaw (52) to be close to each other and clamp a copper pipe, one end of the hollow optical axis (541) is connected with a first connecting block (57) and the other end of the hollow optical axis (541) is connected with a second connecting block (58), a guide sleeve fixing hole is formed in the second connecting block (58), the guide sleeve (54) is arranged in the guide sleeve fixing hole, the hollow optical axis (541) is arranged in the guide sleeve (54), and the second connecting block (58) is connected with the double-rod cylinder (55), the double-rod cylinder (55) is used for driving the finger cylinder (53) to stretch, the second rotary cylinder (56) is connected with a third connecting block (59), and the second rotary cylinder (56) is used for driving the third connecting block (59) to rotate so as to drive the installation manipulator (5) or the recovery manipulator (6) to rotate.