CN112296457A

CN112296457A - Vibrating type electrolytic forming processing device for blisk

Info

Publication number: CN112296457A
Application number: CN202011266448.XA
Authority: CN
Inventors: 夏任波; 徐波; 夏健波
Original assignee: Changzhou Xinjiang Intelligent Equipment Co Ltd
Current assignee: Changzhou Xinjiang Intelligent Equipment Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-02-02

Abstract

The invention provides a vibrating type electrolytic forming processing device of a blisk, which comprises a tool table arranged on a lathe bed, wherein the tool table can slide along the Y-axis direction, a C-axis is arranged on the tool table, a rotating shaft for fixing the blisk is arranged on the C-axis along the Y-axis direction, a support is arranged above the tool table, a main shaft for driving the support to move along the Z-axis is arranged on the support, two cathodes which are arranged oppositely are connected on the support in a sliding manner, a driving assembly for driving the two cathodes to mutually approach or separate along the X-axis direction is arranged on the support, and a vibrating assembly for driving the cathodes to vibrate in a reciprocating manner along the X-axis direction is also arranged on the two cathodes. According to the vibrating type electrolytic forming processing device for the blisk, the vibrating component and the driving component are arranged on the cathode, so that heat and electrolytic products generated in the processing process can be rapidly removed, the electrolyte is effectively updated, the cathode is prevented from being burnt out, and the processing quality of blisk blades is effectively improved.

Description

Vibrating type electrolytic forming processing device for blisk

Technical Field

The invention relates to the technical field of electrolytic machining, in particular to a vibrating type electrolytic forming machining device for a blisk.

Background

Electrochemical machining is a method for forming a workpiece into a predetermined size and shape by using a tool cathode based on the principle of electrochemical anodic dissolution. During the machining process, the workpiece is connected with the positive pole of a power supply, and the cathode of the tool is connected with the negative pole of the power supply. A certain interelectrode gap is maintained between the workpiece anode and the tool cathode, and an electrolyte flowing at a high speed is introduced into the interelectrode gap to form a conductive path between the workpiece and the cathode. The workpiece material is continuously dissolved and eroded along with the feeding of the cathode to the workpiece, the electrolysis product is taken away by the electrolyte flowing at high speed, and when the cathode is fed to a preset position, the processing is finished. Compared with the traditional processing technology, the electrochemical machining has the advantages of no cathode loss, wide machining range, high machining surface quality and the like, so that the electrochemical machining is widely applied to machining of aeroengine parts such as blisks, diffusers and the like.

In the prior art, the electrochemical machining equipment for machining the blades by the blisk is provided with two electrolytic cathodes, a blade back of the machined blade and a blade basin of the machined blade, wherein the two electrolytic cathodes are continuously close to the blades under the control of a driving mechanism, electrolyte is sprayed into a machining gap, and materials on two sides of the blades are gradually removed by electrochemical machining under the action of an electric field and a flow field. However, when the machining gap is too small, the electrolyte is difficult to spray, so that a large amount of heat is difficult to discharge during electrolytic machining, and when the machining gap is too small, the cathode is easy to burn due to short circuit, so that the production speed and the production quality are affected.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a vibrating type electrolytic forming processing device for a blisk.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a vibrating electrolytic forming processingequipment of blisk, is including locating the frock platform on the lathe bed, the frock platform can be followed Y axle direction and slided, be equipped with the C axle on the frock bench, C epaxial revolving axle that is used for fixed blisk that is equipped with along Y axle direction, frock bench side is equipped with the support, be equipped with the main shaft that is used for driving the support and removes along the Z axle on the support, sliding connection has two negative poles of relative setting on the support, be equipped with the drive assembly that two negative poles of drive are close to each other or keep away from along X axle direction on the support, two still be equipped with the vibration subassembly that is used for driving negative pole along X axle direction reciprocating vibration on the negative pole.

The blade disc workpiece is arranged on the rotating shaft and is in a vertical state, the workpiece is connected with the positive pole of a power supply, the negative pole of the power supply is connected with the negative pole of the power supply, and the tool table slides back and forth along the Y axis to enable the blade disc to be positioned at the correct position below the main shaft; the main shaft is used for driving the cathode to approach the blade disc along the Z axis, namely the vertical direction; in the forming electrolytic machining process of the blade, the driving assembly drives the two cathodes to mutually approach to carry out electrolytic machining on the blade basin and the blade back of the blade, and the blade basin and the blade back cathode do reciprocating motion with certain amplitude under the driving of the vibrating mechanism, namely the cathodes continuously do reciprocating vibration while feeding to the blade material; when the cathode feeds to the blade blank, because the machining gap is smaller and the machining area is large, in a certain vibration period, when the cathode approaches to the blade, the surface material of the blade is gradually electrolyzed and removed, and when the cathode vibrates away from the blade, the machining gap is enlarged, so that heat and electrolysis products generated in the machining process can be quickly removed, the electrolyte is effectively updated, and the preparation is made for the next machining period. Therefore, the surface quality, the forming precision and the like of the processing can be effectively improved.

In the vibration electrolytic machining, a power supply of electrolytic machining is supplied in a time-sharing mode, when the cathode moves to the blades in one period of reciprocating vibration of the cathode, the power supply supplies power and provides group pulses, at the moment, the surface material of the blade blank is subjected to electrolytic machining and is gradually removed, when the cathode vibrates away from the blades, the power supply of the electrolytic machining stops supplying power, at the moment, the electrolytic reaction stops, the distance between the cathode and the blades is increased, and the discharge of electrolytic products is facilitated.

Further, in order to drive the reciprocal vibration of negative pole, the vibration subassembly includes first slip table and second slip table, be equipped with the cavity in the first slip table, the cavity is located to the second slip table, second slip table lower extreme is connected with the negative pole, be equipped with on the cavity lateral wall with second slip table complex slide rail, the slide rail axis sets up along the X axle direction, one side that the slide rail was kept away from to the second slip table is equipped with two parallel arrangement's spacing, spacing axis sets up along the Z axle direction, first slip table is close to and is equipped with vibrating motor on the lateral wall of spacing, the vibrating motor output extends to between two spacing, be equipped with on the vibrating motor output with two spacing complex cams.

Thereby vibrating motor rotates the rotation that drives the cam and does not stop, and the cam rotates the in-process, constantly stirs the spacing strip of both sides, makes the second slip table make a round trip to slide on the slide rail.

Further, carry out electrochemical machining to blade leaf basin and leaf back of the body for two cathodes are close to each other, drive assembly includes servo motor and lead screw, X axle sliding connection is followed with the support to first slip table, the lead screw both ends are rotated with the support and are connected, the lead screw passes first slip table and first slip table threaded connection, servo motor locates to be connected with screw drive on the support. The servo motor rotates forwards and backwards to drive the screw rod to rotate forwards and backwards, so that the cathode is driven to be close to or far away from the blade.

Further, the negative pole includes C shape extension and electrode tip, C shape extension upper end with the second slip table is connected, C shape extension lower extreme with the electrode tip is connected, be equipped with the delivery port on the electrode tip, be equipped with the water inlet nozzle on the second slip table, be equipped with the inlet channel who feeds through water inlet nozzle and delivery port in the C shape extension. The water inlet nozzle is arranged on the second sliding table, when the second sliding table does reciprocating vibration, the supply of electrolyte cannot be influenced, the electrolyte is sprayed out from the cathode water outlet to the machining gap, the machining gap is a gap between a cathode and a workpiece anode, the electrochemical machining is non-contact machining, the machining power supply is turned on, a certain voltage (generally 14-24V and pulse current) is applied, the two cathodes are controlled and driven to move oppositely, namely the blade basin cathode and the blade back cathode feed to the blade simultaneously, and materials on two sides of the blade are removed by electrochemical machining gradually under the action of an electric field and a flow field.

Further, in order to process a circle of blades on the blade disc blank, one of the electrode heads on the two cathodes is matched with the blade back of the blade, and the other electrode head is matched with the blade basin of the blade. The two cathodes are matched with each other to form a blade, and the rotating shaft rotates by a certain angle to form a circle of blades on the blade disc blank.

Further, the tool table is made of non-conductive materials such as marble and the like, and the flatness is high and the structural strength is high.

The invention has the beneficial effects that: according to the vibrating type electrolytic forming processing device for the blisk, the vibrating component and the driving component are arranged on the cathode, the surface material of the blade is gradually electrolyzed and removed when the cathode vibrates towards the blade in the blade processing process, and the processing gap is enlarged when the cathode vibrates away from the blade, so that heat and electrolytic products generated in the processing process can be rapidly removed, the electrolyte is effectively updated, the cathode is prevented from being burnt out, and the processing quality of the blisk blade is effectively improved.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

fig. 3 is a schematic structural view of the vibration assembly.

In the figure: 1. the device comprises a tooling table, 2, a C shaft, 3, a leaf disc, 3-1, blades, 4, a support, 5, a main shaft, 6, a cathode, 6-1, a C-shaped extension part, 6-2, an electrode tip, 7, a first sliding table, 8, a second sliding table, 9, a sliding rail, 10, a limiting strip, 11, a vibration motor, 12, a cam, 13, a servo motor, 14, a lead screw, 15 and a water inlet nozzle.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

As shown in fig. 1-3, the vibrating type electrolytic forming processing device for blisk of the present invention comprises a tooling table 1 disposed on a lathe bed, the tool table 1 is made of marble, the tool table 1 can slide along the Y-axis direction, a C-axis 2 is arranged on the tool table 1, a rotating shaft for fixing the blade disc 3 is arranged on the C shaft 2 along the Y-axis direction, a support 4 is arranged above the tooling table 1, the bracket 4 is provided with a main shaft 5 for driving the bracket 4 to move along the Z axis, the bracket 4 is connected with two cathodes 6 which are arranged oppositely in a sliding way, the two cathodes 6 are respectively matched with the blade back and the blade basin of the blade 3-1, and the support 4 is provided with a driving component for driving the two cathodes 6 to mutually approach or separate along the X-axis direction, and the two cathodes 6 are also provided with a vibration component for driving the cathodes 6 to vibrate in a reciprocating manner along the X-axis direction.

The vibration subassembly includes first slip table 7 and second slip table 8, be equipped with the cavity in the first slip table 7, the cavity is located to second slip table 8, 8 lower extremes of second slip table are connected with negative pole 6, be equipped with on the cavity lateral wall with 8 complex slide rails 9 of second slip table, slide rail 9 axis sets up along the X axle direction, one side that slide rail 9 was kept away from to second slip table 8 is equipped with two parallel arrangement's spacing 10, spacing 10 axes sets up along the Z axle direction, be equipped with vibrating motor 11 on the lateral wall that first slip table 7 is close to spacing 10, vibrating motor 11 output extends to between two spacing 10, be equipped with on the vibrating motor 11 output with two spacing 10 complex cams 12.

Drive assembly includes servo motor 13 and lead screw 14, X axle sliding connection is followed with support 4 to first slip table 7, lead screw 14 both ends are rotated with support 4 and are connected, lead screw 14 passes first slip table 7 and first slip table 7 threaded connection, servo motor 13 is located on support 4 and is connected with lead screw 14 transmission.

The cathode 6 comprises a C-shaped extension part 6-1 and an electrode tip 6-2, the upper end of the C-shaped extension part 6-1 is connected with the second sliding table 8, the lower end of the C-shaped extension part 6-1 is connected with the electrode tip 6-2, a water outlet is formed in the electrode tip 6-2, a water inlet nozzle 15 is formed in the second sliding table 8, and a liquid inlet channel for communicating the water inlet nozzle 15 with the water outlet is formed in the C-shaped extension part 6-1.

The working process is as follows:

the blank of the leaf disc 3 is arranged on a rotating shaft of a C shaft 2, a tool table 1 moves along a Y shaft to enable the leaf disc 3 to move below a cathode 6, a main shaft 5 drives the cathode 6 to descend, in the forming electrolytic machining process of the blade 3-1, servo motors 13 on two sides of a support 4 drive two lead screws 14 to rotate, so that the two cathodes 6 are driven to move oppositely, when a mechanism drives two first sliding tables 7 to feed the blade 3-1 (namely forming and fine machining of the blade 3-1), a leaf basin and a leaf back cathode 6 do left and right reciprocating motion with certain amplitude under the driving of a vibrating mechanism, namely, the cathode 6 continuously does reciprocating vibration along the X shaft while feeding to the blade 3-1.

In the vibration electrolytic machining, a power supply of electrolytic machining is supplied in a time-sharing mode, in one period of reciprocating vibration of the cathode 6, when the cathode 6 moves towards the blade 3-1, the power supply supplies power, pulse groups are supplied, the surface material of a blank of the blade 3-1 is subjected to electrolytic machining and is gradually removed, when the cathode 6 vibrates away from the blade 3-1, the power supply of the electrolytic machining stops, the electrolytic reaction stops, the distance between the cathode 6 and the blade 3-1 is increased, and the electrolytic products are conveniently discharged.

Directions and references (e.g., up, down, left, right, etc.) may be used in the present disclosure only to aid in the description of features in the figures. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a vibrating electrolytic forming processingequipment of blisk which characterized in that: including locating frock platform (1) on the lathe bed, frock platform (1) can be followed Y axle direction and slided, be equipped with C axle (2) on frock platform (1), be equipped with the revolving axle that is used for fixed bladed disk (3) along Y axle direction on C axle (2), frock platform (1) top is equipped with support (4), be equipped with on support (4) and be used for driving main shaft (5) that support (4) removed along the Z axle, sliding connection has two negative pole (6) of relative setting on support (4), be equipped with the drive assembly that two negative pole (6) of drive are close to each other or keep away from along X axle direction on support (4), two still be equipped with the vibration subassembly that is used for driving negative pole (6) along X axle direction reciprocating vibration on negative pole (6).

2. A vibrating type electrolytic machining device for blisk, as set forth in claim 1, wherein: the vibration assembly comprises a first sliding table (7) and a second sliding table (8), a cavity is arranged in the first sliding table (7), the second sliding table (8) is arranged in the cavity, the lower end of the second sliding table (8) is connected with the cathode (6), a slide rail (9) matched with the second sliding table (8) is arranged on the side wall of the cavity, the axis of the slide rail (9) is arranged along the X-axis direction, two parallel limiting strips (10) are arranged on one side of the second sliding table (8) far away from the sliding rail (9), the axis of the limiting strip (10) is arranged along the Z-axis direction, the side wall of the first sliding table (7) close to the limiting strip (10) is provided with a vibration motor (11), the output end of the vibration motor (11) extends to the position between the two limit strips (10), and the output end of the vibration motor (11) is provided with a cam (12) matched with the two limiting strips (10).

3. A vibrating type electrolytic machining device for blisk, according to claim 1 or 2, characterized in that: drive assembly includes servo motor (13) and lead screw (14), X axle sliding connection is followed with support (4) in first slip table (7), lead screw (14) both ends are rotated with support (4) and are connected, lead screw (14) pass first slip table (7) and first slip table (7) threaded connection, servo motor (13) are located on support (4) and are connected with lead screw (14) transmission.

4. A vibrating type electrolytic machining device for blisk, as set forth in claim 2, wherein: the cathode (6) comprises a C-shaped extension part (6-1) and an electrode tip (6-2), the upper end of the C-shaped extension part (6-1) is connected with the second sliding table (8), the lower end of the C-shaped extension part (6-1) is connected with the electrode tip (6-2), a water outlet is formed in the electrode tip (6-2), a water inlet nozzle (15) is formed in the second sliding table (8), and a liquid inlet channel for communicating the water inlet nozzle (15) with the water outlet is formed in the C-shaped extension part (6-1).

5. A vibrating type electrolytic machining device for blisks, as set forth in claim 4, wherein: one of the electrode heads (6-2) on the two cathodes (6) is matched with the blade back of the blade (3-1), and the other electrode head is matched with the blade basin of the blade (3-1).

6. A vibrating type electrolytic machining device for blisk, as set forth in claim 1, wherein: the tool table (1) is made of non-conductive materials such as marble and the like, and is high in flatness and structural strength.