CN113275737A - Laser-assisted material increasing and decreasing composite processing device and method - Google Patents
Laser-assisted material increasing and decreasing composite processing device and method Download PDFInfo
- Publication number
- CN113275737A CN113275737A CN202110571297.7A CN202110571297A CN113275737A CN 113275737 A CN113275737 A CN 113275737A CN 202110571297 A CN202110571297 A CN 202110571297A CN 113275737 A CN113275737 A CN 113275737A
- Authority
- CN
- China
- Prior art keywords
- support
- laser
- laser head
- groove
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
Abstract
The invention provides a laser-assisted material increase and decrease composite processing device and a method, wherein the device comprises: the laser-assisted additive manufacturing assembly comprises a laser head and a wire feeding nozzle, a first guide rail in the vertical direction is arranged on the side surface of the laser head, and the wire feeding nozzle is arranged at the tail end of the laser head and is suitable for feeding a welding wire to a laser focus of an additive manufacturing laser source; the support body comprises a support and a support, the support is arranged in parallel with the laser head, a first moving unit which is suitable for being matched with the first guide rail is arranged on the side face of the support, the first moving unit and the first guide rail are arranged in a sliding mode so as to adjust the laser head to move along the vertical direction relative to the support, the support is vertically arranged on the support, and the support is connected with the support in a sliding mode so as to adjust the distance between the support and the laser head; the material reducing and cutting assembly comprises a milling cutter, the milling cutter is arranged in parallel with the laser head and is arranged on one side, far away from the support, of the support. The device has compact structure and low manufacturing cost, and is suitable for field operation.
Description
Technical Field
The invention relates to the technical field of material increase and decrease manufacturing of metal parts, in particular to a laser-assisted material increase and decrease composite processing device and method.
Background
The traditional material reduction manufacturing method can not meet the more and more urgent requirements of high-end part design and rapid manufacturing in the industrial field in recent years. In recent years, the rising additive manufacturing technology well makes up the defects of the traditional manufacturing method due to a series of advantages, such as rapidness, flexibility, cost saving and the like, and is suitable for rapid manufacturing of complex parts.
Compared with the selective laser melting metal 3D printing (SLM) technology, the laser-assisted additive manufacturing (LAAM) technology is particularly suitable for the manufacturing and repairing processes of large-size metal parts. In order to better meet the market demand on precise and efficient manufacturing and repairing of metal parts with complex structures or stamping dies and solve the realistic problem that a material reducing cutter cannot reach after laser additive manufacturing, a laser-assisted material increasing and reducing composite manufacturing technology which is provided by combining a laser-assisted material increasing and reducing manufacturing technology with a traditional material reducing technology has become a hotspot of industrial research and product research and development. Through the combination of material increase and material reduction, the surface roughness and the forming precision of the formed part can be ensured in the material reduction process, the hollow part and the inner hole of the complex part can be machined through material reduction cutting in the forming process, a support structure which is difficult to remove in a pure material increase manufacturing method is avoided, and the manufacturing efficiency and the machining quality are greatly improved.
At present, in the design of a laser material increasing and decreasing composite manufacturing platform, two or more industrial robots are mainly adopted to respectively complete laser material increasing and mechanical material decreasing procedures, so that the flexible processing characteristics of the robots can be fully exerted, and the laser material increasing and decreasing composite manufacturing platform is more suitable for manufacturing large-scale metal parts with complex structures by virtue of the advantages of the laser material increasing and mechanical material decreasing procedures in the aspects of freedom degree and accessibility. However, the use of multiple robots significantly increases the manufacturing cost of the device, and the coordination of multiple robots also makes path planning and coordinate system setup more complicated. Although a single robot can be used to cooperate with the gantry machine tool to avoid the problem of coordination of multiple robots, the large gantry machine tool will significantly increase the floor space of the equipment, and the field operation cannot be realized.
Disclosure of Invention
The invention solves the problems that in the prior art, the laser material increasing and decreasing composite manufacturing platform is high in manufacturing cost, large in occupied area and difficult to operate on site.
In order to solve the above problems, the present invention provides a laser-assisted material-increasing/decreasing composite processing apparatus, including: a frame, a laser-assisted additive manufacturing assembly, and a subtractive cutting assembly, wherein,
the laser auxiliary additive manufacturing assembly comprises a laser head and a wire feeding nozzle, wherein a first guide rail in the vertical direction is arranged on the side surface of the laser head, and the wire feeding nozzle is arranged at the tail end of the laser head and is suitable for feeding a welding wire to a laser focus of an additive manufacturing laser source;
the support body comprises a support and a support, the support is arranged in parallel with the laser head, a first movement unit which is suitable for being matched with the first guide rail is arranged on the side face of the support, the first movement unit is arranged in a sliding mode with the first guide rail so as to adjust the laser head to move relative to the support along the vertical direction, the support is vertically arranged on the support, and the support is connected with the support in a sliding mode so as to adjust the distance between the support and the laser head;
the material reducing and cutting assembly comprises a milling cutter, wherein the milling cutter is arranged in parallel with the laser head and is arranged on one side, away from the support, of the support.
Preferably, a second guide rail is arranged on one side, close to the support, of the support, a second moving unit matched with the second guide rail is arranged on the support, and a connecting seat suitable for being connected with a manipulator is arranged on one side, far away from the support, of the support.
Preferably, the side of support still is provided with the adjusting knob, the adjusting knob includes first adjusting knob and second adjusting knob, first adjusting knob is suitable for the adjustment the laser head is relative the support moves along vertical direction, the second adjusting knob is suitable for the adjustment the support with the interval of laser head.
Preferably, the side of support still is provided with dust absorption pipe and dust absorption tube socket, the dust absorption pipe with the dust absorption tube socket sets up on with the side that the adjusting knob is relative, just the mouth of pipe of dust absorption pipe is towards milling cutter sets up, the pipe tail of dust absorption pipe is suitable for and is connected with industrial dust catcher, the dust absorption pipe passes through the fix with screw on the dust absorption tube socket.
Preferably, the laser-assisted material increase and decrease combined machining device further comprises fastening components, wherein the support and the joint of the support and the laser head are both provided with two groups of fastening components.
Preferably, the joint of the support and the joint of the support and the laser head are both provided with grooves suitable for accommodating the fastening components, the grooves comprise a first groove and a second groove, wherein,
the bracket is provided with the first groove, and the cross section of the first groove is in an inverted concave shape;
the support and the laser head are respectively provided with two second grooves, the two second grooves are symmetrically arranged at two sides of the first guide rail or the second guide rail, one end of each of the two second grooves is communicated with the first groove, the other end of each of the two second grooves extends towards the direction far away from the first guide rail or the second guide rail to form an extension part, and the width of one side, far away from the first groove, of each second groove is larger than that of one side, close to the first groove, of each second groove;
the first groove and the second groove are communicated and matched to form the groove.
Preferably, each set of the fastening assemblies includes a fastening bolt and a fastening clamp block, wherein,
the cross section of each fastening clamping block is L-shaped, the two fastening clamping blocks are symmetrically arranged in the groove, one side of each fastening clamping block with larger width is arranged in the second groove, and the other end of each fastening clamping block is arranged in the first groove;
the fastening bolt penetrates through the two fastening clamping blocks arranged in the first groove part and penetrates through the bracket, and the fastening bolt is in threaded connection with the fastening clamping blocks so as to adjust the two fastening clamping blocks to move oppositely.
Compared with the prior art, the laser-assisted material increase and decrease composite processing device disclosed by the invention combines laser-assisted material increase and decrease with mechanical material decrease, greatly improves the manufacturing efficiency and the processing quality, and has the advantages of compact structure, small volume, processing space saving and equipment manufacturing cost reduction; in addition, the device is through adjusting vertical distance or horizontal distance between laser head and the support to adjust vertical distance or horizontal distance between laser head and the milling cutter, and then adjust vertical distance or horizontal distance between laser focus and the milling cutter, can satisfy the different requirements to milling depth and laser focus simultaneously, easily realize the field work or the restoration to large-scale part or mould, and the device will send a nozzle setting at the end of laser head, welding wire and laser focus synchronous motion can realize 360 all-round motions, application scope is wider.
The invention also provides a laser-assisted material increase and decrease composite processing method, which is based on the laser-assisted material increase and decrease composite processing device, and comprises the following steps:
step S1, setting the processing parameters of the workpiece to be processed;
step S2, starting a milling cutter to mill the surface of the workpiece to be machined until a preset milling depth is reached;
step S3, starting a laser head to enable a laser focus to irradiate the milled area of the workpiece to be processed to form a molten pool, and starting a wire feeding nozzle to enable welding wires to be uniformly fed into the molten pool of the milled area of the workpiece to be processed to form an additive manufacturing layer;
step S4, repeating the steps S2 to S3, or repeating the steps S1 to S3 until a predetermined workpiece is obtained, and finishing the predetermined workpiece to obtain a workpiece.
Preferably, the method further comprises the following steps:
opening the industrial dust collector to enable the dust collection pipe to timely absorb the fragments in the milling process;
before the starting of the milling tool, the method further comprises:
and after the processing parameters of the workpiece to be processed are set, the fastening assembly is screwed down, so that the support, the support and the laser head are locked.
Preferably, the step S4 includes:
repeating the steps S2 to S3 after completing a first additive manufacturing layer if a plurality of metal deposition structures are additively manufactured on the surface of the workpiece to be processed;
repeating the steps S1 to S3 after completing the first additive manufacturing layer if the gradient structure metal deposition structure is additive manufactured on the surface of the workpiece to be processed.
Compared with the prior art, the laser-assisted material increase and decrease composite processing method can adjust the vertical distance and the horizontal distance between the laser focus and the milling cutter, can simultaneously meet different requirements of a workpiece to be processed on milling depth and laser focus, and can perform milling processing on the surface of the workpiece to be processed before additive manufacturing, so that on one hand, defects, oxides, stains and the like on the surface of the workpiece to be processed can be removed, macro-micro forming of an additive manufacturing layer can be effectively improved, defects such as cracks and inclusions are avoided, and the quality of the additive manufacturing layer is improved; on the other hand, the milling cutter converts mechanical energy into metal internal energy in the milling process, can play a role in preheating a to-be-additively-manufactured area, is favorable for optimizing a thermal cycle curve of an additively-manufactured metal raw material, refines crystal grains and inhibits the formation of additive manufacturing layer cracks; the composite processing method is easy to realize the field processing or repairing of large parts or dies, is particularly suitable for the field precise and efficient repairing of vulnerable key parts such as a male die, a punch and the like in a stamping die, and further reduces the manufacturing cost on the premise of ensuring the processing precision and quality.
Drawings
FIG. 1 is a schematic front view of a laser-assisted material-increasing and material-decreasing composite processing device according to an embodiment of the present invention;
FIG. 2 is a schematic rear view of a laser-assisted material-increasing and material-decreasing composite processing apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic bottom view of a laser-assisted material-increasing/decreasing composite processing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic partial cross-sectional view of a laser-assisted material-increasing and material-decreasing composite processing apparatus according to an embodiment of the present invention;
FIG. 5 is a process flow diagram of a composite processing method for increasing and decreasing material with the aid of laser in the embodiment of the present invention;
fig. 6 is a partial schematic view of a laser-assisted material-increasing and material-decreasing composite processing device in an embodiment of the invention.
Description of reference numerals:
1-a frame body; 2-laser assisted additive manufacturing of the component; 3-a material reducing cutting assembly; 4-a fastening assembly; 5-a groove; 6-a manipulator;
11-a support; 12-a scaffold; 21-a laser head; 22-wire feed nozzle; 31-a milling tool; 32-a drive motor; 41-fastening bolts; 42-fastening the clamping block; 51-a first groove; 52-a second groove;
121-an adjusting knob; 122-a dust suction pipe; 123-dust absorption pipe seat; 321-a stepping motor; 322-a transmission case; 521-an extension.
Detailed Description
At present, in the design of a laser material-increasing and material-reducing composite manufacturing platform, two or more industrial robots are mainly adopted to be respectively matched with a laser material-increasing processing device and a mechanical material-reducing processing device so as to complete the laser material-increasing and mechanical material-reducing processes, the flexible processing characteristics of the robots can be fully exerted, and the laser material-increasing and material-reducing composite manufacturing platform is more suitable for manufacturing large-scale metal parts with complex structures by virtue of the advantages of the laser material-increasing and material-reducing composite manufacturing platform in the aspects of freedom degree and accessibility. However, the adoption of multiple robots will significantly increase the manufacturing cost of the equipment, and the coordination of multiple robots also makes path planning and coordinate system setting more complicated; although a single robot can be used to cooperate with the gantry machine tool to avoid the problem of coordination of multiple robots, the large gantry machine tool will significantly increase the floor space of the equipment, and the field operation cannot be realized. In addition, in some existing laser material increase and decrease composite manufacturing platform designs, an additional laser module needs to be adopted to preheat the surface of a part, but the additional laser preheating module increases the manufacturing cost of equipment, and the relative position of each laser module and a material decrease and cutting module cannot be adjusted.
In order to solve the technical problems, the embodiment of the invention provides a laser-assisted material-increasing and material-decreasing composite processing device and a composite processing method, the device has small volume, saves processing space, only needs to be matched with a single industrial robot for use, and is easy to realize field processing or repairing of large parts or dies; the composite processing method reduces the manufacturing cost on the premise of ensuring the processing precision and performance.
The technical solutions in the embodiments of the present application will be described in detail and clearly with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the embodiments of the present application, the description of the term "some preferred embodiments" means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one preferred embodiment or preferred example of the present invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With reference to fig. 1 to 3, an embodiment of the present invention provides a laser-assisted material-increasing and material-decreasing composite processing apparatus, including: a frame body 1, a laser-assisted additive manufacturing assembly 2 and a material reducing and cutting assembly 3, wherein,
the laser auxiliary additive manufacturing assembly 2 comprises a laser head 21 and a wire feeding nozzle 22, wherein a first guide rail in the vertical direction is arranged on the side surface of the laser head 21, and the wire feeding nozzle 22 is arranged at the tail end of the laser head 21 and is suitable for feeding welding wires to a laser focus of an additive manufacturing laser source;
the frame body 1 comprises a support 11 and a support 12, the support 12 is arranged in parallel with the laser head 21, a first moving unit which is suitable for being matched with a first guide rail is arranged on the side surface of the support 12, the first moving unit and the first guide rail are arranged in a sliding mode so as to adjust the laser head 21 to move relative to the support 12 along the vertical direction, the support 12 is vertically arranged on the support 11, and the support 12 is connected with the support 11 in a sliding mode so as to adjust the distance between the support 11 and the laser head 21;
the material reducing cutting assembly 3 comprises a milling cutter 31, the milling cutter 31 is arranged in parallel with the laser head 21 and is arranged on the side of the support 11 away from the support 12.
The laser-assisted material increase and decrease composite processing device provided by the embodiment combines laser-assisted material increase and decrease with mechanical material decrease, greatly improves the manufacturing efficiency and the processing quality, and has the advantages of compact structure, small volume, processing space saving and equipment manufacturing cost reduction; the device is through adjusting vertical distance or horizontal distance between laser head and the support, thereby adjust vertical distance or horizontal distance between laser head and the milling cutter, and then adjust vertical distance or horizontal distance between laser focus and the milling cutter, can satisfy the different requirements to milling depth and laser focus simultaneously, easily realize the field work or the restoration to large-scale part or mould, further the cost is reduced under the prerequisite of guaranteeing machining precision and performance, and the device will send a nozzle setting at the end of laser head, welding wire and laser focus synchronous motion, can realize 360 all-round motion, application scope is wider. It should be noted that the support 12 is arranged parallel to the laser head 21, which means that the longitudinal direction of the support 12 is arranged parallel to the longitudinal direction of the laser head 21, and the arrangement of the milling cutter 31 parallel to the laser head 21 means that the axial direction of the milling cutter 31 is parallel to the longitudinal direction of the laser head 21.
In order to facilitate the sliding connection between the bracket 12 and the support 11, in some preferred embodiments, a second guide rail is disposed on a side of the support 11 close to the bracket 12, and a second moving unit is disposed on the bracket 12 and is matched with the second guide rail to slidably connect the bracket 12 and the support 11.
It should be noted that, in the embodiment of the present invention, specific kinds of the first guide rail, the second guide rail, and the first motion unit and the second motion unit are not further limited, and those skilled in the art may select according to actual situations as long as the first motion unit and the first guide rail are slidably connected, and the second motion unit and the second guide rail are slidably connected, for example: the first and second guide rails may be slide rails and the first and second moving units may be sliders, or the first and second guide rails may be toothed guide rails and the first and second moving units may be gears.
In this embodiment, the side of the support 12 remote from the support 11 is also provided with a coupling socket adapted to couple with the robot 6. Therefore, the manipulator 6 has the advantages of rapid response and high flexibility, the laser additive manufacturing and milling processing can be rapidly carried out on the workpiece to be processed, the device can be used for processing the workpiece to be processed only by being matched with a single manipulator, the manufacturing cost of equipment is further reduced, and the problem that a plurality of industrial robots are difficult to coordinate and cooperate is also avoided.
In this embodiment, in order to facilitate the adjustment of the vertical movement of the laser head 21 relative to the support 12 and the adjustment of the distance between the support 11 and the laser head 21, the side of the support 12 is further provided with an adjusting knob 121, the adjusting knob 121 comprises a first adjusting knob and a second adjusting knob, the first adjusting knob is suitable for adjusting the vertical movement of the laser head 21 relative to the support 12, and the second adjusting knob is suitable for adjusting the vertical movement of the support 11 and the laser head 21And (4) spacing. Therefore, the horizontal distance L between the milling cutter 31 and the laser focus O is adjusted by adjusting the second adjusting knob to drive the support 11 to move along the horizontal direction1Or, the milling depth and the distance L between the laser focus O and the surface of the workpiece to be processed are adjusted by adjusting the first adjusting knob to move the laser head 21 relative to the bracket 12 along the vertical direction2。
In the present embodiment, the material reducing and cutting assembly 3 further includes a driving motor 32, and an output rotating shaft of the driving motor 32 is connected with the milling cutter 31 to drive the milling cutter 31 to perform milling processing.
It should be noted that, in the present embodiment, the driving motor 32 is not further limited, and those skilled in the art may select the driving motor 32 according to actual situations as long as the driving motor 32 can drive the milling cutter 31 for milling. In some preferred embodiments, the driving motor 32 includes a stepping motor 321 and a transmission case 322, wherein the stepping motor 321 is parallel to the support 12 and is vertically disposed on the support 11 to further reduce the volume of the laser-assisted material-increasing and material-decreasing combined machining device and save the machining space, the transmission case 322 is disposed between the support 11 and the milling cutter 31, an output rotating shaft of the transmission case 322 is connected with the milling cutter 31, and the stepping motor 321 drives the output rotating shaft of the transmission case 322 to rotate, thereby driving the milling cutter 31 to rotate.
More preferably, the milling cutter 31 is detachably connected to the transmission case 322 in order to facilitate the replacement of the milling cutter 31 or the replacement of the kind of the milling cutter 31 in case the milling cutter 31 is damaged.
In some preferred embodiments, the side of the bracket 12 is further provided with a dust suction pipe 122, the dust suction pipe 122 is arranged on the side opposite to the adjusting knob 121, the nozzle of the dust suction pipe 122 is arranged towards the milling cutter 31, and the tail of the dust suction pipe 122 is suitable for being connected with an industrial dust collector. From this, the in-process operation of supplementary increase and decrease material combined machining of laser to in-process gettering piece, clean machined surface can effectively avoid the serious piece of oxidation to get into the molten bath again and form the crackle, has also avoided the piece to stir into milling cutter 31 and intermetallic gap simultaneously and has influenced the material reduction course of working, is favorable to prolonging the working life of milling cutter 31.
As shown in fig. 2, in some preferred embodiments, a suction pipe holder 123 is further provided on a side opposite to the adjustment knob 121 to fix the suction pipe 122. Therefore, the position of the dust suction pipe 122 can be prevented from being deviated, and thus, the debris can be better sucked.
In some alternative embodiments, the suction pipe 122 is fixed on the suction pipe base 123 by a screw, thereby adjusting the height H between the bottom of the suction pipe 122 and the surface of the workpiece to be machined in time by tightening or loosening the screw2。
In some preferred embodiments, the laser-assisted material-increasing and material-decreasing composite processing device further comprises a fastening assembly 4, and the fastening assembly 4 is arranged at the joint of the support 12 and the support 11 and at the joint of the support 12 and the laser head 21. Therefore, the support 12, the support 11 and the laser head 21 can be prevented from sliding relatively in the process of material increase and material decrease composite processing, and the processing precision is prevented from being influenced.
In order to better lock the support 12 and the support 11, the support 12 and the laser head 21, keep the stability in the material increase and decrease combined machining process and further ensure the machining precision, two groups of fastening assemblies 4 are arranged at the joint of the support 12 and the support 11 and the joint of the support 12 and the laser head 21.
It should be noted that the fastening assembly 4 at the joint of the support 12 and the support 11 is the same as the fastening assembly 4 at the joint of the support 12 and the laser head 21, and is also arranged at the joint of the support 12 and the support 11 and the joint of the support 12 and the laser head 21 in the same manner. In order to accommodate the fastening component 4, grooves 5 suitable for accommodating the fastening component 4 are formed at the joint of the support 12 and the support 11 and the joint of the support 12 and the laser head 21.
The arrangement of the fastening assembly 4 at the junction of the support 12 and the support 11, and the arrangement of the support 12 and the laser head 21 are exemplarily described below with reference to fig. 4.
As shown in fig. 4, a groove 5 adapted to receive the fastening assembly 4 is formed at the joint of the bracket 12 and the support 11, the groove 5 includes a first groove 51 and a second groove 52, wherein,
a first groove 51 is formed in the bracket 12, the cross section of the first groove 51 is in an inverted concave shape, and a second guide rail and a second moving unit are arranged in the middle of the first groove 51;
two second grooves 52 are formed in the support 11, the two second grooves 52 are symmetrically arranged on two sides of the second guide rail, one end of each of the two second grooves 52 is communicated with the first groove 51, and the other end of each of the two second grooves 52 extends in a direction away from the second guide rail to form an extending part 521, so that the width of one side, away from the first groove 51, of each second groove 52 is greater than the width of one side, close to the first groove 51, of each second groove 52;
the first recess 51 and the second recess 52 are fitted in communication to form the recess 5.
It should be noted that, the connecting portion of the support 12 and the laser head 21 is also provided with a groove 5 suitable for accommodating the fastening assembly 4, the support 12 is also provided with a first groove 51, the laser head 21 is also provided with two second grooves 52, the two second grooves 52 are symmetrically disposed on two sides of the first guide rail, and the other ends of the two second grooves 52 extend in the direction away from the first guide rail to form an extension portion 521, that is, the connection and the arrangement of the first groove 51 and the second groove 52 at the connecting portion of the support 12 and the laser head 21 are the same as the connection and the arrangement of the first groove 51 and the second groove 52 at the connecting portion of the support 12 and the support 11, and the description of this embodiment is omitted.
In this embodiment, each set of fastening members 4 is identical, and each set of fastening members 4 includes a fastening bolt 41 and a fastening clamp 42, wherein,
the cross section of the fastening clamping block 42 is L-shaped, the two fastening clamping blocks 42 are symmetrically arranged in the groove 5, one side of each fastening clamping block 42 with larger width is arranged in the second groove 52, the other end of each fastening clamping block 42 is arranged in the first groove 51, namely, the bottom of the fastening clamping block 42 with the L-shaped cross section is arranged in the second groove 52, and the top of the fastening clamping block 42 is arranged in the first groove 51;
the fastening bolt 41 is inserted through the two fastening blocks 42 provided in the first recess 51 portion and is inserted into the bracket 12.
In the present embodiment, the fastening bolt 41 is screwed with the fastening clamp block 42 to adjust the movement of the two fastening clamp blocks 42 toward each other. Specifically, the threads of the two fastening blocks 42 may be arranged in the same direction, but the threads of the fastening bolts 41 connected to the two fastening blocks 42 may be arranged in opposite directions, or the threads of the two fastening blocks 42 may be arranged in opposite directions, but the threads of the fastening bolts 41 connected to the two fastening blocks 42 may be arranged in the same direction. In some preferred embodiments, the two fastening blocks 42 have opposite thread directions, and the thread direction of the fastening bolt 41 connected to the two fastening blocks 42 is the same, so as to better perform fastening adjustment.
From this, through setting up matched with fastening clamp splice and recess, and drive two relative fastening clamp splices of setting and move in opposite directions through rotatory fastening bolt, thereby make the fastening clamp splice that cross sectional shape is "L" shape move in the second recess, and be close to or keep away from the extension, get into the extension of recess as fastening clamp splice, or during fastening clamp splice and guide rail and motion unit's both sides butt, support and laser head realize the fastening effect and unable relative slip, thereby after adjusting vertical distance or horizontal distance between laser head and the milling cutter, can avoid increasing and decreasing the in-process of material combined machining, support and support, take place relative slip between the laser head, influence machining precision.
With reference to fig. 5, an embodiment of the present invention further provides a composite processing method of laser-assisted material increase and decrease, and the composite processing method based on the laser-assisted material increase and decrease composite processing apparatus includes the following steps:
step S1, setting the processing parameters of the workpiece to be processed;
step S2, starting and driving the milling cutter 31 to mill the surface of the workpiece to be machined until a preset milling depth is reached;
step S3, starting the laser head 21 to enable the laser focus O to irradiate the milled area of the workpiece to be processed to form a molten pool, and starting the wire feeding nozzle 22 to enable the welding wire to be uniformly fed into the molten pool of the milled area of the workpiece to be processed to form an additive manufacturing layer;
and S4, repeating the steps S2 to S3 or repeating the steps S1 to S3 until a preset workpiece is obtained, and performing finish machining on the preset workpiece to obtain the workpiece.
The composite processing method of laser-assisted material increase and decrease provided by the embodiment can adjust the vertical distance and the horizontal distance between the laser focus and the milling cutter, can simultaneously meet different requirements of a workpiece to be processed on milling depth and laser focus, and can perform milling processing on the surface of the workpiece to be processed before additive manufacturing, on one hand, defects, oxides, stains and the like on the surface of the workpiece to be processed can be removed, macro-micro forming of an additive manufacturing layer can be effectively improved, defects such as cracks and inclusions are avoided, and the quality of the additive manufacturing layer is favorably improved (for example, the density, the plastic toughness, the hardness level and the like of the additive manufacturing layer are improved); on the other hand, the milling cutter converts mechanical energy into metal internal energy in the milling process, can play a role in preheating a to-be-additively-manufactured area, is favorable for optimizing a thermal cycle curve of an additively-manufactured metal raw material, refines crystal grains and inhibits the formation of additive manufacturing layer cracks. The composite processing method for increasing and decreasing materials with the assistance of laser provided by the embodiment is easy to realize field processing or repairing of large parts or dies, and is particularly suitable for field precise and efficient repairing of vulnerable key parts such as a male die and a punch in a stamping die.
It should be noted that the wire feeding nozzle 22 uniformly feeds the welding wire into the molten pool of the milled area of the workpiece to be processed, melts the welding wire with the aid of laser, and forms an additive manufacturing layer on the surface of the milled area of the workpiece to be processed. Therefore, the welding wire moves along with the laser focus, is heated more uniformly, can effectively inhibit the formation of additive manufacturing layer cracks, and elements in the formed additive manufacturing layer are distributed more uniformly.
In this embodiment, the processing parameters of the workpiece to be processed in step S1 include: the machining parameters of the milling cutter 31, the laser parameters, the relative position parameters between the milling cutter 31 and the laser head 21, the wire feeding parameters and the chemical composition of the welding wire are determined, so that the proper welding wire is added into the wire feeder in time, and the wire feeding nozzle 22 feeds the proper welding wire into a molten pool of a milled area of the workpiece to be machined.
In order to explain the processing parameters of the workpiece to be processed in more detail, the processing parameters of the workpiece to be processed are described with reference to fig. 6, in which:
the machining parameters of the milling cutter 31 comprise the feed speed V of the milling cutter 31131 rotational speed V of the milling tool2Milling depth H1Height H between the bottom of the dust suction pipe 122 and the surface of the workpiece to be machined2；
The laser parameters comprise the laser focus O and the distance L between the surface of the workpiece to be processed2Laser power, laser movement speed, and laser movement speed and feed speed V of the milling tool 311Equal;
the relative positional parameters between the milling tool 31 and the laser head 21 include the horizontal distance L of the milling tool 31 from the laser focus O1；
The wire feed parameters include wire feed rate and cross-sectional diameter of the wire.
It should be noted that, the feeding speed V of the milling tool 31 can be determined by those skilled in the art according to the milling surface roughness, the preheating temperature of the front part of the laser melting pool, the laser feeding speed, the rigidity of the milling tool 31, the hardness of the workpiece to be processed and other factors1And the rotational speed V of the milling tool 312(ii) a Determining the milling depth H according to the milling surface roughness, the preheating temperature at the front part of the laser molten pool, the laser feeding speed, the rigidity of the milling cutter 31, the hardness of the workpiece to be processed, the depth of an oxide layer, the thickness of the laser-assisted additive single-layer metal and other factors1(ii) a Determining the height H between the bottom of the dust suction pipe 122 and the surface of the workpiece to be processed according to the maximum diameter of the milling chips2To prevent debris from remaining in the space under the suction pipe 122; determining the distance L between the laser focus O and the surface of the workpiece to be processed according to the factors of the width of the laser melting pool, the preheating temperature at the front part of the laser melting pool, the melting point of the additive metal, the microstructure of the additive metal and the like2Laser power; the horizontal distance L of the milling tool 31 from the laser focus O is determined as a function of the preheating temperature of the laser bath front and the extreme positions resulting from the dimensions and the device design of the laser head 21, the support 11 and the gear box 3221The embodiment of the invention is directed to the feed speed V of the milling cutter 31131 rotational speed V of the milling tool2Milling depth H1Height H between the bottom of the dust suction pipe 122 and the surface of the workpiece to be machined2Distance L between laser focus O and workpiece surface to be processed2Laser power, horizontal distance L of milling tool 31 from laser focus O1And the specific values of the wire feed rate and the cross-sectional diameter of the wire are not further limited and can be determined by those skilled in the art based on the actual circumstances, such as: feed speed V of milling tool 311Can be 0.05-1mm/s, and the rotating speed V of the milling cutter 312Can be 50-3000rpm, and the milling depth H1Can be 0.1-1mm, the height H of the bottom of the dust suction pipe 122 and the surface of the workpiece to be processed2Can be 0.2-2mm, and the distance L between the laser focus O and the surface of the workpiece to be processed2Can be 0-5mm, the laser power can be 200-1Equal, horizontal distance L of milling tool 31 from laser focus O1May be 30-150mm, the wire feed rate may be 0.1-10mm/s, and the cross-sectional diameter of the wire may be 0.2-1.5 mm.
In this embodiment, before the step S2 of starting the driving motor 32 to drive the milling cutter 31, the method further includes: after the processing parameters of the workpiece to be processed are set, the fastening assembly 4 is screwed down, so that the support 12, the support 11, the support 12 and the laser head 21 are locked, and the problem that the processing precision is influenced due to relative sliding among the support 12, the support 11 and the laser head 21 in the process of material increase and decrease composite processing is avoided.
In this embodiment, the step S2, while the driving motor 32 is started to drive the milling cutter 31, further includes: the industrial dust collector is opened, so that the dust collection pipe 122 timely absorbs the fragments in the milling process, the fragments which are seriously oxidized are prevented from reentering the molten pool to form cracks, the fragments are prevented from being stirred into the gaps between the milling cutter 31 and the metal to influence the material reduction process, and the service life of the milling cutter 31 is prolonged.
It should be noted that, in the embodiment of the present invention, the preset milling depth is not further limited, and a person skilled in the art may determine the preset milling depth according to the surface defect of the workpiece to be processed, as long as the surface defect of the workpiece to be processed can be cleared away completely. Milling depth H1May be equal to presetMilling depth H to thoroughly clean the surface defects of the workpiece to be processed at one time1The milling depth can be smaller than the preset milling depth so as to clean the surface defects of the workpiece to be processed for multiple times until the surface defects of the workpiece to be processed are cleaned.
In this embodiment, step S4 includes: repeating steps S2 to S3 after completing the first additive manufacturing layer if the multi-layered metal deposition structure is additively manufactured on the surface of the workpiece to be processed; if the gradient structure metal deposition structure is additively manufactured on the surface of the workpiece to be processed, the steps S1 to S3 are repeated after the first additive manufacturing layer is completed.
It should be noted that, when the metal deposition structure with the gradient structure is additively manufactured on the surface of the workpiece to be processed, after the previous metal additive manufacturing is completed, the components of the welding wire and the powder element need to be replaced, and the processing parameter of the milling cutter 31, the laser parameter, the relative position parameter between the milling cutter 31 and the laser head 21, and the wire feeding parameter are adjusted in time, so as to ensure that the metal deposition structure with the gradient structure has better quality in the additive manufacturing.
Wherein after completing the first additive manufacturing layer, further comprising: the mechanical arm 6 is used for lifting the laser-assisted material-increasing and material-decreasing composite processing device integrally to the average height of a deposition layer. Thereby avoiding the relative distance (L) of the wire feed nozzle 22 from the newly formed surface to be additized2Value) changes, affecting the quality of the additive manufactured layer.
In the present embodiment, finishing the predetermined workpiece in step S4 includes: the driving motor 32 is started to drive the milling cutter 31 to perform precision milling on the predetermined workpiece surface.
And when the preset surface of the workpiece is subjected to precision milling and shaping, the processing parameters of milling processing are timely adjusted according to corresponding metal.
In order to further illustrate the present invention, the following examples are given to further illustrate the present invention. The methods used in the examples of the present invention are all conventional methods unless otherwise specified.
Example 1
The embodiment provides a composite processing method for additive manufacturing of a multilayer metal deposition structure on the surface of a workpiece to be processed based on a laser-assisted material increase and decrease composite processing device, which specifically comprises the following steps:
1.1, setting optimized machining parameters of the milling cutter 31: feed speed V of milling tool 31131 rotational speed V of the milling tool2Milling depth H1Height H between the bottom of the dust suction pipe 122 and the surface of the workpiece to be machined2(ii) a Laser parameters: distance L between laser focus O and workpiece surface to be processed2Laser power, laser movement speed, and laser movement speed and feed speed V of the milling tool 311Equal; relative position parameters between the milling tool 31 and the laser head 21: horizontal distance L of milling tool 31 from laser focus O1(ii) a Wire feeding parameters: the wire feeding speed and the section diameter of the welding wire are input into a control program, optimized processing parameters are input into the control program, and the chemical composition of the welding wire is determined, wherein the laser head 21 is adjusted to move in the vertical direction relative to the bracket 12 through adjusting a first adjusting button so as to adjust the milling depth H1Distance L between laser focus O and workpiece surface to be processed2(ii) a The distance between the support 11 and the laser head 21 is adjusted by adjusting the second adjusting button to adjust the horizontal distance L between the milling cutter 31 and the laser focus O1；
1.2, after the processing parameters of the workpiece to be processed are adjusted, rotating the fastening bolt 41 to enable the fastening clamp block 42 to enter the extension part 521 of the groove 5, screwing the fastening bolt 41 to enable the support 12, the support 11, the support 12 and the laser head 21 to be locked, starting the driving motor 32 to drive the milling cutter 31 to mill the surface of the workpiece to be processed until a preset milling depth is reached, cleaning away oxides, defects, stains and the like on the surface of the workpiece to be processed, and opening the industrial dust collector to enable the dust collection pipe 122 to timely absorb chips in the milling process while milling;
1.3, starting a laser head 21 to enable a laser focus O to irradiate a milled area of the workpiece to be machined so as to form a molten pool, starting a wire feeding nozzle 22 to enable a welding wire to be uniformly fed into the molten pool of the milled area of the workpiece to be machined, performing laser-assisted additive manufacturing on the milled area of the workpiece to be machined, and forming an additive manufacturing layer on the milled area of the workpiece to be machined;
1.4, after the first additive manufacturing layer is completed, the robot 6 integrally lifts the laser-assisted additive and subtractive composite processing device to an average height of a deposition layer, and repeats the steps 1.2 to 1.3 until a preset workpiece is obtained, the program closes the laser head 21 and the wire feed nozzle 22, the driving motor 32 is started to drive the milling cutter 31 to precisely mill the surface of the preset workpiece, the workpiece is obtained, the driving motor 32 and the industrial dust collector are closed, and the fastening bolt 41 is loosened.
Example 2
The embodiment provides a composite processing method for additive manufacturing of a metal deposition structure with a gradient structure on the surface of a workpiece to be processed based on a laser-assisted material increase and decrease composite processing device, and the processing method provided by the embodiment is the same as the processing method in embodiment 1, except that the following method is adopted in the last step:
after the first additive manufacturing layer is completed, the mechanical arm 6 lifts the laser-assisted additive and subtractive composite processing device to an average height of a deposition layer, and the steps 1.1 to 1.3 are repeated, namely after the former metal additive manufacturing is completed, components of welding wires and powder elements need to be replaced, and processing parameters, laser parameters, relative position parameters between the milling cutter 31 and the laser head 21 and wire feeding parameters are adjusted in time until a preset workpiece is obtained, the laser head 21 and the wire feeding nozzle 22 are closed by a program, the driving motor 32 is started to drive the milling cutter 31 to precisely mill the surface of the preset workpiece, the workpiece is obtained, the driving motor 32 and the industrial dust collector are closed, and the fastening bolt 41 is loosened.
Example 3
The embodiment also provides a composite processing method for repairing the defects on the surface of the punch or the punch based on the laser-assisted material increase and decrease composite processing device, so as to solve the defects of cracks, stains and the like on the surface of the punch or the punch, and the processing method provided by the embodiment is the same as the processing method in the embodiment 1, and is different from the processing method in the embodiment in that: the workpiece to be processed is a male die or a punch, and the last step adopts the following method:
after the first metal additive manufacturing layer is completed, the mechanical arm 6 lifts the laser-assisted material increase and decrease composite processing device to an average height of a deposition layer, and the steps 1.1 to 1.3 are repeated, namely after the former metal additive manufacturing is completed, components of welding wires and powder elements need to be replaced, and processing parameters, laser parameters, relative position parameters between the milling cutter 31 and the laser head 21 and wire feeding parameters are adjusted in time until a preset male die or a punch is obtained, the laser head 21 and the wire feeding nozzle 22 are closed by a program, the driving motor 32 is started to drive the milling cutter 31 to precisely mill the surface of the preset male die or punch, the male die or the punch is obtained, the driving motor 32 and the industrial dust collector are closed, and the fastening bolt 41 is loosened.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides a supplementary material composite processing device that increases and decreases of laser which characterized in that includes: a frame body (1), a laser-assisted additive manufacturing assembly (2) and a material reducing and cutting assembly (3), wherein,
the laser auxiliary additive manufacturing assembly (2) comprises a laser head (21) and a wire feeding nozzle (22), wherein a first guide rail in the vertical direction is arranged on the side face of the laser head (21), and the wire feeding nozzle (22) is arranged at the tail end of the laser head (21) and is suitable for feeding a welding wire to a laser focus of an additive manufacturing laser source;
the rack body (1) comprises a support (11) and a support (12), the support (12) and the laser head (21) are arranged in parallel, a first movement unit which is suitable for being matched with the first guide rail is arranged on the side face of the support (12), the first movement unit and the first guide rail are arranged in a sliding mode so as to adjust the laser head (21) to move along the vertical direction relative to the support (12), the support (12) is vertically arranged on the support (11), and the support (12) is connected with the support (11) in a sliding mode so as to adjust the distance between the support (11) and the laser head (21);
the material reducing and cutting assembly (3) comprises a milling cutter (31), wherein the milling cutter (31) is arranged in parallel with the laser head (21) and is arranged on one side, away from the support (12), of the support (11).
2. The laser-assisted material increasing and decreasing combined machining device according to claim 1, characterized in that a second guide rail is arranged on one side of the support (11) close to the support (12), a second movement unit matched with the second guide rail is arranged on the support (12), and a connecting seat suitable for being connected with a manipulator (6) is arranged on one side of the support (12) far away from the support (11).
3. The laser-assisted material-increasing and material-decreasing combined machining device according to claim 1, characterized in that an adjusting button (121) is further arranged on the side surface of the support (12), the adjusting button (121) comprises a first adjusting button and a second adjusting button, the first adjusting button is suitable for adjusting the vertical movement of the laser head (21) relative to the support (12), and the second adjusting button is suitable for adjusting the distance between the support (11) and the laser head (21).
4. The laser-assisted material increasing and decreasing combined machining device according to claim 3, characterized in that a dust suction pipe (122) and a dust suction pipe seat (123) are further arranged on the side face of the support (12), the dust suction pipe (122) and the dust suction pipe seat (123) are arranged on the side face opposite to the adjusting knob (121), the nozzle of the dust suction pipe (122) is arranged towards the milling cutter (31), the tail of the dust suction pipe (122) is suitable for being connected with an industrial dust collector, and the dust suction pipe (122) is fixed on the dust suction pipe seat (123) through a screw.
5. The laser-assisted material increase and decrease composite processing device according to claim 2, characterized in that the device further comprises a fastening assembly (4), and two sets of the fastening assemblies (4) are arranged at the joint of the support (12) and the support (11) and the joint of the support (12) and the laser head (21).
6. A laser-assisted material-adding and material-reducing combined machining device according to claim 5, characterized in that the joint of the support (12) and the support (11) and the joint of the support (12) and the laser head (21) are each provided with a groove (5) adapted to accommodate the fastening assembly (4), the grooves comprising a first groove (51) and a second groove (52), wherein,
the bracket (12) is provided with the first groove (51), and the cross section of the first groove (51) is in an inverted concave shape;
the support (11) and the laser head (21) are respectively provided with two second grooves (52), the two second grooves (52) are symmetrically arranged on two sides of the first guide rail or the second guide rail, one ends of the two second grooves (52) are communicated with the first groove (51), the other ends of the two second grooves (52) extend in the direction away from the first guide rail or the second guide rail to form an extension part (521), so that the width of one side, away from the first groove (51), of the second groove (52) is larger than the width of one side, close to the first groove (51), of the second groove (52);
the first groove (51) and the second groove (52) are communicated and matched to form the grooves.
7. The laser-assisted additive-subtractive composite machining apparatus according to claim 6, wherein each set of said fastening assemblies (4) comprises a fastening bolt (41) and a fastening clamp block (42), wherein,
the cross section of each fastening clamping block (42) is L-shaped, the two fastening clamping blocks (42) are symmetrically arranged in the groove (5), one side of each fastening clamping block (42) with larger width is arranged in the second groove (52), and the other end of each fastening clamping block (42) is arranged in the first groove (51);
the fastening bolt (41) penetrates through the two fastening clamping blocks (42) arranged at the first groove (51) part and penetrates through the bracket (12), and the fastening bolt (41) is in threaded connection with the fastening clamping blocks (42) so as to adjust the two fastening clamping blocks (42) to move oppositely.
8. A laser-assisted material increase/decrease composite processing method, based on the laser-assisted material increase/decrease composite processing apparatus according to any one of claims 1 to 7, comprising the steps of:
step S1, setting the processing parameters of the workpiece to be processed;
step S2, starting a milling cutter (31) to mill the surface of the workpiece to be machined until a preset milling depth is reached;
step S3, starting a laser head (21) to enable a laser focus to irradiate the milled area of the workpiece to be processed to form a molten pool, and starting a wire feeding nozzle (22) to enable a welding wire to be uniformly fed into the molten pool of the milled area of the workpiece to be processed to form an additive manufacturing layer;
and S4, repeating the steps S2 to S3 or repeating the steps S1 to S3 until a preset workpiece is obtained, and performing finish machining on the preset workpiece to obtain the workpiece.
9. The laser-assisted material increase/decrease composite processing method according to claim 8, further comprising:
opening an industrial dust collector to enable a dust collection pipe (122) to timely absorb the debris in the milling process;
before the activating the milling tool (31), further comprising:
and after the processing parameters of the workpiece to be processed are set, the fastening assembly (4) is screwed down, so that the support (12) and the support (11) as well as the support (12) and the laser head (21) are locked.
10. The laser-assisted material addition/subtraction composite processing method according to claim 8, wherein the step S4 includes:
repeating the steps S2 to S3 after completing a first additive manufacturing layer if a plurality of metal deposition structures are additively manufactured on the surface of the workpiece to be processed;
repeating the steps S1 to S3 after completing the first additive manufacturing layer if the gradient structure metal deposition structure is additive manufactured on the surface of the workpiece to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571297.7A CN113275737A (en) | 2021-05-25 | 2021-05-25 | Laser-assisted material increasing and decreasing composite processing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571297.7A CN113275737A (en) | 2021-05-25 | 2021-05-25 | Laser-assisted material increasing and decreasing composite processing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113275737A true CN113275737A (en) | 2021-08-20 |
Family
ID=77281557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110571297.7A Pending CN113275737A (en) | 2021-05-25 | 2021-05-25 | Laser-assisted material increasing and decreasing composite processing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113275737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561639A (en) * | 2022-02-28 | 2022-05-31 | 南京辉锐光电科技有限公司 | Workpiece surface repairing device |
-
2021
- 2021-05-25 CN CN202110571297.7A patent/CN113275737A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561639A (en) * | 2022-02-28 | 2022-05-31 | 南京辉锐光电科技有限公司 | Workpiece surface repairing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109623105B (en) | Additive and subtractive material cooperative manufacturing method | |
| WO2016165450A1 (en) | Angle-clearing-free welding method and double-head cutting saw having automatic machining function | |
| CN113275896A (en) | Milling material reduction and laser auxiliary material increase combined machining device and method | |
| CN113102780A (en) | Selective laser melting forming system and using method | |
| CN113231650A (en) | Laser and friction-assisted material increase device and method | |
| CN113275737A (en) | Laser-assisted material increasing and decreasing composite processing device and method | |
| CN113894408A (en) | Grooving and laser cutting combined all-in-one machine | |
| CN113275897A (en) | Laser and friction composite material increasing and decreasing machining device and method | |
| CN215392477U (en) | Laser and friction-assisted material increase device | |
| CN215316933U (en) | Laser-assisted material-increasing and material-decreasing composite processing device | |
| CN210877737U (en) | Gantry machine tool for efficiently machining | |
| CN215316931U (en) | Laser and friction composite material increasing and decreasing processing device | |
| CN215316932U (en) | Mechanical material reducing and laser material increasing synchronous processing device | |
| CN217942312U (en) | Six longmen automatic welder | |
| CN217890275U (en) | Cutting table for metal section processing machine | |
| CN217019361U (en) | Grooving and laser cutting combined all-in-one machine | |
| CN216656476U (en) | Large sheet metal part edge milling and cutting equipment | |
| CN215033690U (en) | Scrap iron collecting device of automatic mechanical processing equipment | |
| CN114953817A (en) | Multidirectional stone carving machine capable of preventing machine tool from being corroded and carving process thereof | |
| CN113478302A (en) | Numerical control double-side grinding structure | |
| CN113275895A (en) | Mechanical material reduction and laser material increase synchronous processing device and method | |
| CN219425962U (en) | Laser cutting, cleaning and welding integrated machine | |
| CN215700154U (en) | Machine tool with high-speed machining function | |
| CN110170846A (en) | It is a kind of with welding gun feed function Tang milling apparatus | |
| CN220240569U (en) | Intelligent rapid repair manufacturing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |