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Beam electrode rotary clamping device for multi-channel discharge ablation milling

[Application (patent) number: CN201810703601.7; Applicant: Nanjing University of Aeronautics and Astronautics; Inventor: Qiu Mingbo; Fu Jiongbo; Ma Jianjian;]
Summary:
A cluster electrode rotating clamping device used for multi-channel discharge ablation milling processing includes a timing belt (3), a DC motor (5), an SMC rotary joint (9), and a conductive slip ring (17). It is characterized in that the DC motor (5) and the cluster electrode (7) are connected to the transmission through a synchronous belt (3); the conductive slip ring (17) and the rotor end wire (16) are connected to the lead wire (13) of the cluster electrode. The stator lead wire (20) of the ring (17) is connected to the power supply wire of the EDM machine to realize the power supply of the cluster electrode; one end of the rotary joint connector (8) is in interference fit with the intake pipe of the cluster electrode (7), and the other end is connected with The tube nut (23) is in an interference fit, and the rotating end of the tube nut (23) and the SMC rotary joint (9) are connected by a pipe thread, thereby realizing the intake and fogging of the bundle electrode. The invention can realize the charging, charging mist and rotation of the cluster electrode, and is used for multi-channel discharge ablation milling processing of special shapes of planes, grooves and molds.
Sovereign items:
1. A cluster electrode rotating clamping device for multi-channel discharge ablation milling processing, comprising an aluminum profile (1, 12), a timing belt wheel (2, 21), a timing belt (3), and a motor base (4 ), DC motor (5), fastening screws (6, 11, 15, 19), bundle electrode (7), rotary joint connector (8), SMC rotary joint (9), rotary joint fixing member (10), Angle piece (14), conductive slip ring (17), conductive slip ring seat (18), chip guard (22), pipe nut (23), shaft sleeve (24, 25, 26), bearing (27). It is characterized in that the aluminum profile (1) is fixed on the spindle of the EDM machine tool, the aluminum profile (12) and the aluminum profile (1) are fixed by the corner piece (14) and the fastening screw (15), and the DC motor (5) is fixed on the motor On the seat (4), the motor seat (4) and the conductive slip ring seat (18) are fixed on the aluminum profile (1) with fastening screws (6, 19); the shaft sleeve (24, 25, 26) is installed in an interference fit The cluster electrode (7); the shaft sleeve (25) and the DC motor (5) are equipped with synchronous belt wheels (2, 21) on the output shaft. The DC motor (5) and the cluster electrode (7) are connected to the drive through a synchronous belt (3) ; The conductive slip ring (17) and the bearing (27) are interference-mounted on the conductive slip ring seat (18); the conductive slip ring (17) rotor-end lead (16) is connected to the lead-in lead (13) of the bundle electrode, The conductive slip ring (17), the stator end wire (20) is connected to the power line of the EDM machine, so as to realize the power supply of the cluster electrode; one end of the rotary joint connector (8) is in interference fit with the intake pipe of the cluster electrode (7), The other end is in an interference fit with the pipe nut (23). The pipe nut (23) and the SMC rotary joint (9) are connected at one end through a pipe thread to achieve air intake and fog in the bundle electrode. The fixed joint (9) passes through the fixed end. Rotary Joint Fixing ( 10) It is fixed on the aluminum profile (12); since a large number of ablated particles are generated during the multi-channel discharge ablation milling process, in order to prevent the ablated particles from causing the cluster electrode (7), the bushing (26) and the bearing ( 27), install a chip blocking plate (22) on the lower end of the conductive slip ring seat (18).
Claim:
Ranch
1. A cluster electrode rotating clamping device for multi-channel discharge ablation milling processing, comprising an aluminum profile (1, 12), a timing belt wheel (2, 21), a timing belt (3), and a motor base (4 ), DC motor (5), fastening screws (6, 11, 15, 19), bundle electrode (7), rotary joint connector (8), SMC rotary joint (9), rotary joint fixing member (10), Angle piece (14), conductive slip ring (17), conductive slip ring seat (18), chip guard (22), pipe nut (23), shaft sleeve (24, 25, 26), bearing (27). It is characterized in that the aluminum profile (1) is fixed on the spindle of the EDM machine tool, the aluminum profile (12) and the aluminum profile (1) are fixed by the corner piece (14) and the fastening screw (15), and the DC motor (5) is fixed on the motor On the seat (4), the motor seat (4) and the conductive slip ring seat (18) are fixed on the aluminum profile (1) with fastening screws (6, 19); the shaft sleeve (24, 25, 26) is installed in an interference fit The cluster electrode (7); the shaft sleeve (25) and the DC motor (5) are equipped with synchronous belt wheels (2, 21) on the output shaft. The DC motor (5) and the cluster electrode (7) are connected to the drive through a synchronous belt (3) ; The conductive slip ring (17) and the bearing (27) are interference-mounted on the conductive slip ring seat (18); the conductive slip ring (17) rotor-end lead (16) is connected to the lead-in lead (13) of the bundle electrode, The conductive slip ring (17), the stator end wire (20) is connected to the power line of the EDM machine, so as to realize the power supply of the cluster electrode; one end of the rotary joint connector (8) is in interference fit with the intake pipe of the cluster electrode (7), The other end is in an interference fit with the pipe nut (23). The pipe nut (23) and the SMC rotary joint (9) are connected at one end through a pipe thread to achieve air intake and fog in the bundle electrode. The fixed joint (9) passes through the fixed end. Rotary Joint Fixing ( 10) It is fixed on the aluminum profile (12); since a large number of ablated particles are generated during the multi-channel discharge ablation milling process, in order to prevent the ablated particles from causing the cluster electrode (7), the bushing (26) and the bearing ( 27), install a chip blocking plate (22) on the lower end of the conductive slip ring seat (18).
The rotating device for collecting electrode rotating clamp according to claim 1, characterized in that the motor rotates at a speed of 100r / min-1000r / min, and the collecting electrode (7) is driven to rotate by a synchronous belt (3).
3. The rotating device for a cluster electrode according to claim 1, characterized in that the conductive slip ring seat (18) is made of PLA or ABS material through fused deposition molding (FDM), and is fixed to aluminum by fastening screws (19) Profile (1).
4. The cluster electrode rotating clamping device according to claim 1, characterized in that a conductive slip ring (17) is used to realize the charging of the cluster electrode during the rotation, and the conductive slip ring (17) is a via hole conductive slip ring. , The number of conductive slip rings is 6-48 lines, and the current of each channel is 10-30A.
The rotating electrode clamping device for a cluster electrode according to claim 1, characterized in that the bearing (27) is a sealed bearing, and the chip blocking plate (22) is fixed to the lower end of the conductive slip ring seat (18) by glue to prevent erosion. The particles cause blockages between the cluster electrode (7), the shaft sleeve (26), and the bearing (27).
The device for rotating and clamping a bundled electrode according to claim 1, characterized in that the SMC rotary joint (9) is used to realize the intake and fogging of the bundled electrode during the rotation. The working pressure of aerosol is 0.01 ~ 1MPa.
7. The rotating device of a cluster electrode according to claim 1, characterized in that the rotary joint connector (8) is made of PLA or ABS material through fusion deposition molding (FDM), and one end is in interference with the intake pipe of the cluster electrode (7) The other end is in an interference fit with the pipe nut (23), and both ends are sealed with resin AB glue.
8. The rotating device of a cluster electrode according to claim 1, wherein the device is fixed to a spindle of the EDM machine by means of screw fastening.
Beam electrode rotary clamping device for multi-channel discharge ablation milling
Technical field
The invention relates to a cluster electrode rotating clamping device used for multi-channel electric discharge ablation milling processing, and is used for processing special shapes of planes, grooves, and molds, and in particular, it is used for multi-channel electric discharge ablation. Etching and milling processing, to realize the clamping device of the beam electrode power supply, intake mist, and rotation.
Background technique
EDM uses electric energy to convert heat into heat to remove workpiece materials. It is only related to the electrical conductivity of the object being processed, and has nothing to do with the mechanical properties such as hardness and strength of the object. It is an important method for metal processing. However, compared with mechanical processing methods, EDM has the disadvantages of low processing efficiency and relatively poor surface quality.
In order to improve the efficiency of EDM, Professor Liu Zhidong proposed an EDM-induced ablation machining method. This method introduces oxygen during the EDM discharge and uses the huge chemical energy generated by metal combustion to etch away the workpiece. Spark processing is increased by more than 10 times. Xu Anyang used functional electrodes for discharge atomization and ablation, and found that functional electrodes can improve processing efficiency and improve the surface quality of workpieces. The functional electrode is a cluster electrode made of a plurality of hollow copper tubes. Considering that each electrode in the cluster electrode is separately charged for electric discharge machining, it can achieve simultaneous discharge of multiple electrodes and multiple channels at the same time, which can greatly improve the processing efficiency of electric discharge discharge induced ablation processing.
Aiming at the multi-channel electric discharge ablation processing method, it is necessary to design a clamping device that realizes the charging of the beam electrode, the inlet mist, and the rotation to realize the multi-channel electric discharge ablation milling process.
Summary of the invention
The purpose of the present invention is to design a multi-channel discharge ablation machining method for a multi-channel discharge ablation milling process. A cluster electrode rotating clamping device is designed for multi-channel discharge ablation milling. FIG. 1 is a physical diagram of a cluster electrode. The processing of grooves and special shapes of the mold is specifically a clamping device used for multi-channel electric discharge ablation milling processing to realize the charging of the beam electrode, the induction mist, and the rotation.
The invention adopts the following technical solutions:
A cluster electrode rotating clamping device used for multi-channel discharge ablation milling processing, which comprises an aluminum profile (1, 12), a timing belt wheel (2, 21), a timing belt (3), a motor base (4), DC motor (5), fastening screws (6, 11, 15, 19), cluster electrode (7), rotary joint connector (8), SMC rotary joint (9), rotary joint fixing member (10), corner piece (14), conductive slip ring (17), conductive slip ring seat (18), chip guard (22), pipe nut (23), shaft sleeve (24, 25, 26), and bearing (27). It is characterized in that the aluminum profile (1) is fixed on the spindle of the EDM machine tool, the aluminum profile (12) and the aluminum profile (1) are fixed by the corner piece (14) and the fastening screw (15), and the DC motor (5) is fixed on the motor On the seat (4), the motor seat (4) and the conductive slip ring seat (18) are fixed on the aluminum profile (1) with fastening screws (6, 19); the shaft sleeve (24, 25, 26) is installed in an interference fit The cluster electrode (7); the shaft sleeve (25) and the DC motor (5) are equipped with synchronous belt wheels (2, 21) on the output shaft. The DC motor (5) and the cluster electrode (7) are connected to the drive through a synchronous belt (3) ; The conductive slip ring (17) and the bearing (27) are interference-mounted on the conductive slip ring seat (18); the conductive slip ring (17) rotor-end lead (16) is connected to the lead-in lead (13) of the bundle electrode, The conductive slip ring (17), the stator end wire (20) is connected to the power line of the EDM machine, so as to realize the power supply of the cluster electrode; one end of the rotary joint connector (8) is in interference fit with the intake pipe of the cluster electrode (7), The other end is in an interference fit with the pipe nut (23). The pipe nut (23) and the SMC rotary joint (9) are connected at one end through a pipe thread to achieve air intake and fog in the bundle electrode. The fixed joint (9) passes through the fixed end. Rotary Joint Fixing ( 10) It is fixed on the aluminum profile (12); since a large number of ablated particles are generated during the multi-channel discharge ablation milling process, in order to prevent the ablated particles from causing the cluster electrode (7), the bushing (26) and the bearing ( 27), install a chip blocking plate (22) on the lower end of the conductive slip ring seat (18).
The rotation speed of the DC motor (5) is 100r / min-1000r / min, and the beam collecting electrode (7) is driven to rotate by the synchronous belt (3).
The conductive slip ring seat (18) is made of PLA or ABS material through fused deposition molding (FDM), and is fixed on the aluminum profile (1) by using fastening screws (19).
The conductive slip ring (17) realizes the charging of the beam electrode during the rotation process. The conductive slip ring (17) is a through-hole conductive slip ring, and the number of the conductive slip ring is 6 to 48 lines, and each current is 10 -30A.
The bearing (27) is a sealed bearing, and the chip blocking plate (22) is fixed to the lower end of the conductive slip ring seat (18) by glue, thereby preventing the cluster electrode (7), the shaft sleeve (26) and the bearing (26) from being eroded by particles. 27).
The SMC rotary joint (9) realizes air intake and mist ingress of the beam collecting electrode during rotation. The working pressure of aerosol is 0.01 ~ 1MPa.
The rotary joint connector (8) is made of PLA or ABS material through fusion deposition molding (FDM). One end of the rotary joint is in interference fit with the inlet electrode of the cluster electrode (7), and the other end is in interference fit with the tube nut (23). All are sealed with resin AB glue.
The cluster electrode rotating clamping device is fastened to a spindle of an EDM machine by means of screw fastening.
The invention has the following beneficial effects:
The through-hole conductive slip ring and the SMC rotary joint realize the power supply and air intake mist of the cluster electrode during the rotation process, thereby realizing the multi-channel discharge ablation milling processing of the cluster electrode for planes, grooves, and molds. Processing of special shapes.
BRIEF DESCRIPTION OF THE DRAWINGS
Beam electrode rotary clamping device for multi-channel discharge ablation milling
Fig. 1 is a physical view of a collecting electrode.
Beam electrode rotary clamping device for multi-channel discharge ablation milling
FIG. 2 is a schematic structural diagram of the present invention.
Beam electrode rotary clamping device for multi-channel discharge ablation milling
Fig. 3 is an exploded view of a rotary joint portion of the present invention.
Beam electrode rotary clamping device for multi-channel discharge ablation milling
FIG. 4 is a structural diagram of a conductive slip ring base of the present invention.
Beam electrode rotary clamping device for multi-channel discharge ablation milling
Fig. 5 is an exploded view of a collecting electrode portion of the present invention.
detailed description
The invention is further described below with reference to the drawings and embodiments.
As shown in Figure 2-5,
A cluster electrode rotating clamping device used for multi-channel discharge ablation milling processing, which comprises an aluminum profile (1, 12), a timing belt wheel (2, 21), a timing belt (3), a motor base (4), DC motor (5), fastening screws (6, 11, 15, 19), cluster electrode (7), rotary joint connector (8), SMC rotary joint (9), rotary joint fixing member (10), corner piece (14), conductive slip ring (17), conductive slip ring seat (18), chip guard (22), pipe nut (23), shaft sleeve (24, 25, 26), and bearing (27). It is characterized in that the aluminum profile (1) is fixed on the spindle of the EDM machine tool, the aluminum profile (12) and the aluminum profile (1) are fixed by the corner piece (14) and the fastening screw (15), and the DC motor (5) is fixed on the motor On the seat (4), the motor seat (4) and the conductive slip ring seat (18) are fixed on the aluminum profile (1) with fastening screws (6, 19); the shaft sleeve (24, 25, 26) is installed in an interference fit The cluster electrode (7); the shaft sleeve (25) and the DC motor (5) are equipped with synchronous belt wheels (2, 21) on the output shaft. The DC motor (5) and the cluster electrode (7) are connected to the drive through a synchronous belt (3) ; The conductive slip ring (17) and the bearing (27) are interference-mounted on the conductive slip ring seat (18); the conductive slip ring (17) rotor-end lead (16) is connected to the lead-in lead (13) of the bundle electrode, The conductive slip ring (17), the stator end wire (20) is connected to the power line of the EDM machine, so as to realize the power supply of the cluster electrode; one end of the rotary joint connector (8) is in interference fit with the intake pipe of the cluster electrode (7), The other end is in an interference fit with the pipe nut (23). The pipe nut (23) and the SMC rotary joint (9) are connected at one end through a pipe thread to achieve air intake and fog in the bundle electrode. The fixed joint (9) passes through the fixed end. Rotary Joint Fixing ( 10) It is fixed on the aluminum profile (12); since a large number of ablated particles are generated during the multi-channel discharge ablation milling process, in order to prevent the ablated particles from causing the cluster electrode (7), the bushing (26) and the bearing ( 27), install a chip blocking plate (22) on the lower end of the conductive slip ring seat (18).
During the processing, the motor rotates at a speed of 100r / min-1000r / min, and the cluster electrode (7) is rotated by a synchronous belt (3); the conductive slip ring (17) realizes each electrode of the cluster electrode separately during the rotation Power supply; the SMC rotary joint (9) is used to realize the intake and fog of the beam electrode during the rotation process, so that the multi-channel discharge ablation milling process of the beam electrode is used for the special shapes of planes, grooves, and molds. Surface processing.
The parts not involved in the present invention are the same as or can be implemented by using the existing technology.
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