Arc additive milling equipment

Abstract

The present invention discloses an arc additive milling processing equipment in the field of arc additive processing technology, comprising a milling platform, a milling mechanism installed on the surface of the milling platform, the milling mechanism comprising a rear shell and a front shell fixedly connected to the milling platform, a rotary cutter drum rotatably connected between the relative surfaces of the rear shell and the front shell, a transmission spindle rotatably connected to the inner wall of the rotary cutter drum, a conversion motor and a servo motor are respectively fixedly installed on the circumferential side surface of the rear shell, the output shaft end of the conversion motor is transmission-connected to the rotary cutter drum, the output shaft end of the servo motor is fixedly connected to the transmission spindle, a group of milling modules distributed in a circumferential array are installed on the surface of the rear shell, the inner wall of each milling module is clamped with a milling cutter head, and the specifications of the milling cutter head on each milling module are different. The present invention changes the single-cutter head structure of the traditional milling equipment into a multi-cutter head structure through the arrangement of structures such as milling modules, permanent magnets and linkage gears.

Description

Technical Field

[0001] The invention relates to the technical field of arc additive processing, and in particular to an arc additive milling processing device. Background Art

[0002] Arc additive manufacturing technology is a process that uses arc fuse technology to perform 3D forming of metal parts. That is, argon arc welding arc is used as a heat source to melt the metal wire and deposit it layer by layer to produce a three-dimensional metal blank that is close to the product design size requirements. Compared with other metal additive manufacturing technologies, arc additive manufacturing technology has the advantages of low equipment investment (only welding power supply, motion system and control system are required), high manufacturing efficiency (the additive speed can reach several kilograms per hour), stable equipment operation, and low operating cost (due to the electric-arc conversion rate of more than 85%, for lasers, the electric-light conversion rate is less than 10%, and the operating cost is lower).

[0003] In the process of milling objects by current electric arc additive milling processing devices, the objects are rarely reinforced and locked, which causes the objects to be displaced and deviated during the milling process, thereby affecting the pass rate of the milling processing of the objects. In order to solve the problems raised in the above background technology, the patent document with announcement number CN209006718U discloses an electric arc additive milling processing device, which uses two clamps to clamp and stabilize objects whose sizes are smaller than the processing table, thereby achieving locking and stabilization of objects whose sizes are smaller than the processing table, thereby improving the pass rate of milling of objects whose sizes are smaller than the processing table. However, in the actual processing process of electric arc additive, milling operations of multiple tool heads are often required on a workpiece, and the tool head replacement process of the existing milling device is relatively cumbersome and inconvenient to operate. Based on this, the present invention designs an electric arc additive milling processing equipment to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an arc additive milling processing device to solve the problem that the existing arc additive milling processing device mentioned in the above background technology is not convenient for online replacement of the milling device cutter head.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an arc additive milling processing device, comprising a milling platform, a surface of which is provided with a milling mechanism;

[0006] The milling mechanism includes a rear shell and a front shell fixedly connected to the milling platform, a rotary cutter drum is rotatably connected between the relative surfaces of the rear shell and the front shell, the inner wall of the rotary cutter drum is rotatably connected to the transmission main shaft, a conversion motor and a servo motor are respectively fixedly installed on the circumferential side surface of the rear shell, the output shaft end of the conversion motor is transmission-connected to the rotary cutter drum, the output shaft end of the servo motor is fixedly connected to the transmission main shaft, a group of milling modules distributed in a circular array are installed on the surface of the rotary cutter drum, a milling cutter head is clamped on the inner wall of each milling module, and the specifications of the milling cutter head on each milling module are different, a transmission gear is fixedly installed on the circumferential side surface of the transmission main shaft, and a linkage module cooperating with the transmission gear and the milling cutter head is fixedly installed on the inner wall of the front shell.

[0007] Preferably, the linkage module respectively includes a positioning plate fixedly connected to the front shell and a magnetic table fixedly connected to the front shell, a floating seat is arranged below the positioning plate, the inner wall of the floating seat is rotatably connected to a horizontally arranged coupling shaft, a driving wheel is fixedly installed on the end of the coupling shaft, a linkage gear meshing with a transmission gear is fixedly installed on the circumferential side of the coupling shaft, a group of damping telescopic tubes are fixedly installed between the relative surfaces of the positioning plate and the floating seat, each of the circumferential side surfaces of the damping telescopic tube is sleeved with a compression spring, a permanent magnet is fixedly installed on the bottom surface of the floating seat, and an electromagnet with the same magnetic property as the permanent magnet is fixedly installed on the surface of the magnetic table.

[0008] Preferably, the milling module includes a tool seat, the circumferential side surface of the tool seat is fixedly connected to the rotating cutter cylinder, the inner wall of the tool seat is clamped with a tool shaft, the inner wall of the tool shaft is clamped with a milling cutter head at a corresponding position, the circumferential side surface of the tool shaft is fixedly installed with a driven bevel gear, the inner wall of the tool seat is rotatably connected with a driven shaft, and the circumferential side surface of the driven shaft is respectively fixedly installed with a driven wheel cooperating with the driving wheel and an active bevel gear cooperating with the driven bevel gear.

[0009] Preferably, the axis of the knife shaft is perpendicular to the axis of the driven shaft, and the peripheral side surfaces of the driven wheel and the driving wheel are both provided with friction lines.

[0010] Preferably, the milling platform includes a frame, a dual-axis movable platform is fixedly installed at the lower part of the frame, a group of lifting push rods are fixedly installed at the top of the frame, the inner wall of the frame is slidably connected with a lifting platform, the bottom ends of a group of lifting push rods are fixedly connected to the lifting platform, and the surfaces of the rear shell and the front shell are fixedly connected to the lifting platform.

[0011] Preferably, the dual-axis movable platform includes a slide groove opened inside the frame, the inner wall of the slide groove is slidably connected to a longitudinal slide, the inner wall of the longitudinal slide is slidably connected to an axial slide, a clamping platform is fixedly installed on the top surface of the axial slide, a longitudinal push rod connected to the longitudinal slide is fixedly installed inside the frame, and an axial push rod fixedly connected to the axial slide is fixedly installed inside the longitudinal slide.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention changes the single-cutter head structure of the traditional milling equipment into a multi-cutter head structure through the arrangement of structures such as the milling module, the permanent magnet and the linkage gear, and when the workpiece is processed, multiple cutter heads can be replaced online. By realizing the above-mentioned online cutter head replacement function, the device can perform continuous multi-cutter head milling operations on the workpiece. By realizing the above-mentioned technical effects, the practicality and versatility of the equipment are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the rear shell and the front shell of the present invention;

[0016] Figure 3 For the present invention Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0017] Figure 4 It is a schematic diagram of the structure of the transmission main shaft and the rotary cutter drum of the present invention;

[0018] Figure 5 It is a schematic diagram of the structure of the driving wheel and the permanent magnet of the present invention;

[0019] Figure 6 It is a structural schematic diagram of the milling module of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1-rear shell, 2-front shell, 3-rotating cutter drum, 4-transmission spindle, 5-conversion motor, 6-servo motor, 7-milling module, 8-milling cutter head, 9-transmission gear, 10-positioning plate, 11-magnetic table, 12-floating seat, 13-coupling, 14-driving wheel, 15-linkage gear, 16-damping telescopic tube, 17-permanent magnet, 18-electromagnet, 19-cutter seat, 20-cutter shaft, 21-driven bevel gear, 22-driven shaft, 23-driven wheel, 24-driving bevel gear, 25-milling platform. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-6 , the present invention provides a technical solution: an arc additive milling processing device, comprising a milling platform 25, a surface of the milling platform 25 is equipped with a milling mechanism;

[0024] The milling platform 25 includes a frame, and a dual-axis movable platform is fixedly installed at the lower part of the frame. When in use, the arc additive material to be processed is placed on the dual-axis movable platform, and a fixture for the arc additive material is installed on the dual-axis movable platform;

[0025] The function of the dual-axis moving platform is to drive the arc additive to move longitudinally and axially, thereby changing the milling position of the arc additive;

[0026] The dual-axis mobile platform includes a slide groove opened inside the frame, the inner wall of the slide groove is slidably connected with a longitudinal slide seat, the inner wall of the longitudinal slide seat is slidably connected with an axial slide table, the top surface of the axial slide table is fixedly installed with a clamping table, the inside of the frame is fixedly installed with a longitudinal push rod connected with the longitudinal slide seat, and the inside of the longitudinal slide seat is fixedly installed with an axial push rod fixedly connected with the axial slide table;

[0027] A set of lifting push rods are fixedly installed on the top of the frame, and a lifting platform is slidably connected to the inner wall of the frame, and the bottom ends of the set of lifting push rods are fixedly connected to the lifting platform;

[0028] The milling mechanism comprises a rear shell 1 and a front shell 2 fixedly connected to the milling platform 25, and the surfaces of the rear shell 1 and the front shell 2 are fixedly connected to the lifting platform;

[0029] A rotary cutter drum 3 is rotatably connected between the relative surfaces of the rear shell 1 and the front shell 2, and a transmission main shaft 4 is rotatably connected to the inner wall of the rotary cutter drum 3. A conversion motor 5 and a servo motor 6 are respectively fixedly installed on the peripheral side of the rear shell 1. The output shaft end of the conversion motor 5 is transmission-connected to the rotary cutter drum 3, and the output shaft end of the servo motor 6 is fixedly connected to the transmission main shaft 4. A group of milling modules 7 distributed in a circumferential array are installed on the surface of the rotary cutter drum 3. A milling cutter head 8 is clamped on the inner wall of each milling module 7, and the specifications of the milling cutter head 8 on each milling module 7 are different;

[0030] When in use, the specifications and types of the milling cutter head 8 installed on each milling module 7 can be customized according to actual needs;

[0031] By setting the milling cutter head 8 installed on each milling module 7 to have different specifications, the processing equipment can perform various types of milling processing operations on the electric arc additive;

[0032] A transmission gear 9 is fixedly mounted on the peripheral side surface of the transmission main shaft 4 , and a linkage module cooperating with the transmission gear 9 and the milling cutter head 8 is fixedly mounted on the inner wall of the front housing 2 .

[0033] The linkage module includes a positioning plate 10 fixedly connected to the front shell 2 and a magnetic table 11 fixedly connected to the front shell 2, a floating seat 12 is arranged below the positioning plate 10, the inner wall of the floating seat 12 is rotatably connected with a horizontally arranged coupling shaft 13, a driving wheel 14 is fixedly installed at the end of the coupling shaft 13, a linkage gear 15 meshing with the transmission gear 9 is fixedly installed on the peripheral side of the coupling shaft 13, a group of damping telescopic tubes 16 are fixedly installed between the relative surfaces of the positioning plate 10 and the floating seat 12, and the peripheral side of each damping telescopic tube 16 is sleeved with a compression spring, a permanent magnet 17 is fixedly installed on the bottom surface of the floating seat 12, and an electromagnet 18 with the same magnetic property as the permanent magnet 17 is fixedly installed on the surface of the magnetic table 11;

[0034] The electromagnet 18 generates magnetism when it is energized and loses its magnetism when it is de-energized. After the electromagnet 18 is energized, a repulsive force is generated between it and the permanent magnet 17, thereby driving the floating seat 12 to move upward.

[0035] The milling module 7 includes a tool seat 19, the peripheral side surface of the tool seat 19 is fixedly connected to the rotary cutter drum 3, the inner wall of the tool seat 19 is clamped with a tool shaft 20, the inner wall of the tool shaft 20 is clamped with the milling cutter head 8 at the corresponding position, and a driven bevel gear 21 is fixedly installed on the peripheral side surface of the tool shaft 20, and a driven shaft 22 is rotatably connected to the inner wall of the tool seat 19, and a driven wheel 23 cooperating with the driving wheel 14 and an active bevel gear 24 cooperating with the driven bevel gear 21 are respectively fixedly installed on the peripheral side surface of the driven shaft 22.

[0036] The axis of the knife shaft 20 is perpendicular to the axis of the driven shaft 22 , and the peripheral sides of the driven wheel 23 and the driving wheel 14 are both provided with friction lines.

[0037] This device is mainly suitable for milling operations of arc additives. When in use, a fixture for arc additives is installed on the dual-axis mobile platform, and the arc additives to be processed are clamped and fixed by the fixture;

[0038] The function of the dual-axis mobile platform is to drive the arc material to move longitudinally and axially, and then change the milling position of the arc material. During the milling operation, a milling cutter head 8 of a specified specification is selected to move vertically downward, and then the milling operation is performed. After the milling cutter head 8 specification is selected or the milling cutter head 8 is working, the electromagnet 18 is not energized, and the driving wheel 14 is fitted with the driven wheel 23 above the milling cutter head 8 under the action of the compression spring. After fitting, the power source output by the transmission spindle 4 is then connected through the coupling The moving gear 15, the coupling shaft 13 and the driven wheel 23 are output to the cutter shaft 20, which then drives the milling cutter head 8 to perform milling operations. When the milling cutter head 8 needs to be replaced online, the electromagnet 18 is energized and the floating seat 12 is moved up. After moving up a specified stroke, the driving wheel 14 is fully lifted. After lifting, the conversion motor 5 drives the rotary cutter drum 3 to rotate, so that the milling cutter head 8 of the specified specification moves to the bottom of the driving wheel 14. After the movement is completed, the electromagnet 18 is powered off, and the tool changing operation is completed.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An arc additive milling processing device, comprising a milling platform (25), characterized in that: A milling mechanism is installed on the surface of the milling platform (25); The milling mechanism comprises a rear shell (1) and a front shell (2) fixedly connected to the milling platform (25); a rotary cutter drum (3) is rotatably connected between the opposing surfaces of the rear shell (1) and the front shell (2); the inner wall of the rotary cutter drum (3) is rotatably connected to a transmission main shaft (4); a conversion motor (5) and a servo motor (6) are respectively fixedly mounted on the circumferential side surface of the rear shell (1); the output shaft end of the conversion motor (5) is transmission-connected to the rotary cutter drum (3); the output shaft end of the servo motor (6) is fixedly connected to the transmission main shaft (4); a group of milling modules (7) distributed in a circumferential array are mounted on the surface of the rotary cutter drum (3); a milling cutter head (8) is clamped on the inner wall of each milling module (7); and each milling module (7) is provided with a plurality of milling modules (7) arranged in ... ) have different specifications of the milling cutter head (8) on the front shell (2). A transmission gear (9) is fixedly mounted on the peripheral side surface of the transmission main shaft (4). A linkage module cooperating with the transmission gear (9) and the milling cutter head (8) is fixedly mounted on the inner wall of the front shell (2). The linkage modules respectively include a positioning plate (10) fixedly connected to the front shell (2) and a magnetic table (11) fixedly connected to the front shell (2). A floating seat (12) is arranged below the positioning plate (10). The inner wall of the floating seat (12) is rotatably connected to a horizontally arranged coupling shaft (13). A driving wheel (14) is fixedly mounted on the end of the coupling shaft (13). A linkage gear (15) meshing with the transmission gear (9) is fixedly mounted on the peripheral side surface of the coupling shaft (13). The positioning plate (10) ) and the floating seat (12), a group of damping telescopic tubes (16) are fixedly installed between the relative surfaces of the floating seat (12), and the peripheral side surface of each damping telescopic tube (16) is sleeved with a compression spring. A permanent magnet (17) is fixedly installed on the bottom surface of the floating seat (12), and an electromagnet (18) with the same magnetic property as the permanent magnet (17) is fixedly installed on the surface of the magnetic table (11). The milling module (7) comprises a tool seat (19), and the peripheral side surface of the tool seat (19) is fixedly connected to the rotary cutter drum (3). The inner wall of the tool seat (19) is clamped with a tool shaft (20), and the inner wall of the tool shaft (20) is clamped with a milling cutter head (8) at a corresponding position. A driven bevel gear (21) is fixedly installed on the peripheral side surface of the tool shaft (20), and the inner wall of the tool seat (19) is clamped with a driven bevel gear (21). The wall is rotatably connected to a driven shaft (22), and the peripheral side surfaces of the driven shaft (22) are respectively fixedly mounted with a driven wheel (23) cooperating with the driving wheel (14) and a driving bevel gear (24) cooperating with the driven bevel gear (21), the axis of the knife shaft (20) is perpendicular to the axis of the driven shaft (22), and the peripheral side surfaces of the driven wheel (23) and the driving wheel (14) are both fixedly provided with friction lines, and the milling platform (25) comprises a frame, a dual-axis movable platform is fixedly mounted on the lower part of the frame, a group of lifting push rods are fixedly mounted on the top of the frame, a lifting platform is slidably connected to the inner wall of the frame, the bottom ends of the group of lifting push rods are fixedly connected to the lifting platform, and the surfaces of the rear shell (1) and the front shell (2) are fixedly connected to the lifting platform,The dual-axis mobile platform includes a slide slot opened inside the frame, the inner wall of the slide slot is slidably connected to a longitudinal slide seat, the inner wall of the longitudinal slide seat is slidably connected to an axial slide table, a clamping table is fixedly installed on the top surface of the axial slide table, a longitudinal push rod connected to the longitudinal slide seat is fixedly installed inside the frame, and an axial push rod fixedly connected to the axial slide table is fixedly installed inside the longitudinal slide seat.

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