阅读说明：本技术 大型零件用可吸附式电磁场辅助装置 (Adsorbable electromagnetic field auxiliary device for large parts ) 是由 姚建华 王梁 蒋可静 张群莉 于 2019-12-03 设计创作，主要内容包括：大型零件用可吸附式电磁场辅助装置,包括一个可吸附在待加工零件上的铁芯,铁芯是一体式的矩形框架；两个横向边上各安装一个电磁线圈,两个电磁线圈以相反的磁场方向指向待加工零件；铁芯的纵向边安装有光电传感器,光电传感器感知激光头的纵向实时位置,光电传感器的数据输出端连接中央控制器；铁芯的纵向相对边各设有一个丝杆运动装置；电机的控制端连接中央控制器；铁芯的纵向相对边各设有一个电刷装置,电刷装置的电刷头在待加工零件表面滑行,两个电刷头形成定向的电场；电刷装置与滑块紧固连接；电机的控制端连接中央控制器,以调节电刷装置的位置,使两个电刷头与激光头始终保持一条直线,以保证激光加工区域的电场稳定性和均匀性。(An adsorptive electromagnetic field assisting device for large parts comprises iron cores which can be adsorbed on parts to be machined, wherein each iron core is a body type rectangular frame, electromagnetic coils are respectively installed on two transverse sides and point to the parts to be machined in opposite magnetic field directions, photoelectric sensors are installed on the longitudinal sides of the iron cores and sense the longitudinal real-time positions of laser heads, the data output ends of the photoelectric sensors are connected with a central controller, lead screw motion devices are respectively arranged on the longitudinal opposite sides of the iron cores, the control end of a motor is connected with the central controller, electric brush devices are respectively arranged on the longitudinal opposite sides of the iron cores, electric brush heads of the electric brush devices slide on the surfaces of the parts to be machined, two electric brush heads form directional electric fields, the electric brush devices are fixedly connected with sliders, the control end of the motor is connected with the central controller to adjust the positions of the electric brush devices, and the two electric brush heads and the laser heads are kept in straight lines all the time so as to guarantee the stability.)

1. Large-scale part is with adsorbable formula electromagnetic field auxiliary device, its characterized in that:

the magnetic field generator comprises iron cores (3) which can be adsorbed on a part (1) to be processed, wherein each iron core (3) is provided with a -type rectangular frame which comprises pairs of transverse edges and pairs of longitudinal edges, electromagnetic coils (2) are respectively arranged on the two transverse edges, the two electromagnetic coils (2) are connected in series to form a magnetic field direction, N levels point to the part (1) to be processed, and S levels point to the part (1) to be processed;

the laser head (5) moves in the inner space of the iron core (3); a photoelectric sensor (4) is installed on the longitudinal side of the iron core (3), the photoelectric sensor (4) senses the longitudinal real-time position of the laser head (5), and the data output end of the photoelectric sensor (4) is connected with a central controller; the photoelectric sensor (4) comprises a photoelectric emitter (401) and a photoelectric receiver (402) which are respectively arranged on two longitudinal edges;

the iron core (3) is provided with screw rod motion devices (6) on opposite longitudinal sides respectively, the two screw rod motion devices (6) are symmetrically arranged, each screw rod motion device (6) comprises a motor (601), a base (602), a screw rod (603) and a sliding block (604), the screw rod (603) is connected with the iron core (3) through the base (602), the motor (601) drives the screw rod (603) to rotate, internal threads of the sliding block (604) are meshed on the screw rod (603), and the control end of the motor (601) is connected with a central controller;

electric brush devices (7) are respectively arranged on the longitudinal opposite sides of the iron core (3), an electric brush head (701) of each electric brush device (7) slides on the surface of the part (1) to be processed to form a directional electric field, an electric brush clamp (702) of each electric brush device (7) is fixedly connected with a sliding block (604), an elastic copper sheet (703) is arranged on each electric brush clamp (702), the electric brush head (701) is far away from the surface of the part (1) to be processed and is in contact with the elastic copper sheet (703), and the elastic copper sheet (703) enables the electric brush head (701) to be always in contact with the part (1) to be processed in the motion process;

the brush fixture (702) and the slide block (604), at least of which is made of heat-resistant insulating material;

the control end of the motor (601) is connected with a central controller to adjust the position of the electric brush device (7) so that the two electric brush heads (701) and the laser head (5) always keep straight lines.

2. An absorbable type electromagnetic field auxiliary device for large parts as claimed in claim 1, wherein electromagnetic coils (2) are respectively provided at the bottom of the lateral opposite sides of the iron core (3), and the bottom of the lateral opposite sides of the electromagnetic coils (2) are in contact with the part (1) to be processed.

3. The adsorbable electromagnetic field auxiliary device for large parts according to claim 1, wherein the brush head (701) is an conductive block, and the contact surface between the brush head (701) and the part (1) to be processed is in the shape of a circular arc.

4. The adsorbable electromagnetic field assisting device for a large part according to claim 1, wherein: the brush fixture (702) is provided with a counter bore and is connected with the slide block (604) by a screw.

5. The adsorbable electromagnetic field assisting device for a large part according to claim 1, wherein: the surface to be processed of the part (1) to be processed is a plane, a curved surface, an inclined surface, a vertical surface or an elevation working surface.

Technical Field

The invention relates to electromagnetic field auxiliary devices for laser processing of large parts

Background

The large-scale parts are large in size and heavy in weight, the benefit loss caused by failure is immeasurable, the large-scale parts are inconvenient to disassemble and move, and therefore field repair is frequently carried out, along with the development of laser technology, laser processing is gradually applied to practical industrial application, the laser processing automation degree is high, the processing flexibility is high, the field processing of the failed parts can be well realized, so the laser repair is gradually applied to .

patent application No. CN201721648238.0 of Wang Beam of Zhejiang industry university includes vehicle frame, laser head, magnetic control tyre, etc., but said device only integrates the steady magnetic field to assist laser processing, it can not form Lorentz force, and its regulation and control air hole action is limited, at the same time, said device adopts 4 magnetic wheels to provide steady magnetic field, its contact surface with the part to be processed is small, and the magnetic field distribution formed between four magnetic wheels is not steady directional magnetic field, i.e. in the course of moving processing of laser head in working zone, the magnetic field directions are different, and the regulation and control action of magnetic field is not , so that the laser processing quality is not .

The invention provides electromagnetic field auxiliary devices for large part laser processing, which adopts type iron core as structural frame of the device, wherein the two iron core heads are respectively positive and negative poles of magnetic poles so as to be adsorbed on the part to be processed, the two iron core heads adopt large-size iron core heads so as to ensure that stable and equidirectional uniform field intensity is formed in the processing area, the electric field is provided by two electric brush devices, the two electric brushes move along with the laser head and are always kept on straight lines so as to ensure the stability and uniformity of the electric field in the laser processing area, the electric field and the magnetic field provided by the device jointly act to form directional Lorentz force, and additional volume force is provided for laser field repair so as to improve the laser processing quality.

Disclosure of Invention

The invention provides electromagnetic field auxiliary devices for laser processing of large parts, wherein the type iron core is adsorbed on the parts to be processed and provides a steady and even directional magnetic field, the electric brush device following the laser head provides a stable directional electric field, and the two are coupled to form a Lorentz force, thereby improving the quality of laser processing.

An adsorbable electromagnetic field auxiliary device for large parts comprises iron cores 3 adsorbable on parts to be machined 1, wherein each iron core 3 is provided with a -body type rectangular frame which comprises pairs of transverse edges and pairs of longitudinal edges, electromagnetic coils 2 are respectively arranged on the two transverse edges, the two electromagnetic coils 2 are connected in series to form a magnetic field direction, N-level points to the parts to be machined 1, and S-level points to the parts to be machined 1;

the laser head 5 moves in the inner space of the iron core 3; a photoelectric sensor 4 is arranged on the longitudinal edge of the iron core 3, the photoelectric sensor 4 senses the longitudinal real-time position of the laser head 5, and the data output end of the photoelectric sensor 4 is connected with the central controller; the photosensor 4 includes a photoelectric emitter 401 and a photoelectric receiver 402 mounted on the two longitudinal sides, respectively;

the iron core 3 is provided with lead screw motion devices 6 on the opposite longitudinal sides, and the two lead screw motion devices 6 are symmetrically arranged, wherein each lead screw motion device 6 comprises a motor 601, a base 602, a lead screw 603 and a slide block 604, the lead screw 603 is connected with the iron core 3 through the base 602, the motor 601 drives the lead screw 603 to rotate, and the internal thread of the slide block 604 is meshed on the lead screw 603;

the iron core 3 is provided with electric brush devices 7 on the longitudinal opposite sides, the electric brush head 701 of the electric brush device 7 slides on the surface of the part 1 to be processed to form a directional electric field, the electric brush clamp 702 of the electric brush device 7 is fixedly connected with the slide block 604, the electric brush clamp 702 is provided with an elastic copper sheet 703, the electric brush head 701 is far away from the surface 1 of the part 1 to be processed to be contacted with the elastic copper sheet 703, and the elastic copper sheet 703 enables the electric brush head 701 to be contacted with the part 1 to be processed all the time in the motion process;

the brush holder 702 and the slider 604, at least of which is made of heat-resistant insulating material;

the control end of the motor 601 is connected with a central controller to adjust the position of the brush device 7, so that the two brush heads 701 and the laser head 5 always keep straight lines.

Preferably, electromagnetic coils 2 are respectively arranged at the bottoms of the transversely opposite sides of the iron core 3, and the bottoms of the transversely opposite sides of the electromagnetic coils 2 are in contact with the part 1 to be machined.

Preferably, the brush head 701 is an conductor block, and the contact surface of the brush head 701 and the part 1 to be processed is in a circular arc shape.

Preferably, the brush fixture 702 is counter bored and attached to the slider 604 with screws.

Preferably, the surface to be machined of the part 1 to be machined is a plane surface, or a curved surface, or an inclined surface, or a vertical surface, or an elevation working surface.

The iron core 3 adopts an -body iron core, namely serving as a magnetic conduction iron core and a bearing structure frame of the device;

in the electromagnetic field device, two electromagnetic coils 2 form a stable directional uniform magnetic field in the mutual region, and the direction of the magnetic field can be changed along with the change of the current anode and the current cathode in the electromagnetic coils.

The two electric brush devices 7 and the laser head 5 are always kept on straight lines, so that the electric field at the laser head 7 is ensured to be a stable and directional uniform electric field, the electric field intensity is high, the current utilization rate is high, and the direction of the electric field can be changed along with the change of the positive pole and the negative pole of the current.

The magnetic and electric fields interact to form a stable Lorentz force with controllable direction. And the electric brush device 7 is followed with the laser head 5, thereby ensuring that the Lorentz force direction of the laser head 5 processing area is maintained stable.

The invention has the following two points:

(1) the electric brush device passes through the real-time detection of photoelectric sensor to the laser head position, converts position signal into the signal of telecommunication, and drive electric brush device and laser head remain straight lines throughout to ensure the laser beam machining in-process, the relative fixed position that the laser beam machining region is in the electric field region all the time, thereby guarantee that the electric field distribution direction in processing region is stable, and the syntropy is good, and the electric field size is stable.

(2) The device adopts an body type iron core as a magnetic conduction iron core and a structural framework, and the iron core head adopts a large-size structure, so that a large-area directional uniform magnetic field can be formed in a region to be processed, the stability of the direction and the size of the magnetic field is improved, and the magnetic field is coupled with an electric field to form a stable Lorentz force, thereby improving the laser processing quality.

Drawings

FIG. 1 is a schematic view of the overall assembly of the present invention

FIG. 2 is a schematic view of a brush assembly according to the present invention

FIG. 3 is a schematic view of a brush holder structure of the present invention

FIG. 4 is a schematic view of -core structure of the present invention

FIG. 5 is a schematic diagram of a lead screw movement device and a photoelectric sensor according to the present invention

FIG. 6 is a schematic top view of an electromagnetic field distribution of the present invention

In the figure, 1 part to be processed, 2 electromagnetic coils, 3- iron cores, 4 photoelectric sensors, 401 photoelectric transmitters, 402 photoelectric receivers, 5 laser heads, 6 lead screw motion devices, 601 motors, 602 bases, 603 lead screws, 604 sliders, 7 electric brush devices, 701 electric brush heads, 702 electric brush clamps, 703 elastic copper sheets, 704 connector lugs

Detailed description of the invention

The invention is further described with reference to the following figures.

The invention relates to an adsorbable electromagnetic field auxiliary device for large parts, which is an electromagnetic field device adsorbable on a part 1 to be processed and comprises an electromagnetic coil 2, a double-contact iron core 3, a photoelectric sensor 4, a laser head 5, a lead screw movement device 6 and an electric brush device 7.

The two ends of the iron core 3 of the electromagnetic field device form a magnetic field anode and cathode and are contacted with the part 1 to be processed to be adsorbed on the part 1 to be processed, the electromagnetic field device adopts iron cores, and the iron cores serve as the structural framework of the device;

the electromagnetic coil 2 consists of 2 coils connected in series, the direction of a formed magnetic field is that N levels point to the part 1 to be processed, and the other S levels point to the part 1 to be processed;

the photoelectric sensor 4 comprises a photoelectric emitter 401 and a photoelectric receiver 402, the laser head 5 moves in the internal space of the iron core 3, and the real-time position of the laser head 5 parallel to the direction of the lead screw 603 is sensed through the photoelectric sensor 4, so that the motor 601 is driven to adjust the position of the electric brush device 7, and the two electric brushes and the laser head 5 always keep straight lines;

the longitudinal opposite sides of the iron core 3 are respectively provided with screw rod moving devices 6, the two screw rod moving devices 6 are symmetrically arranged, the screw rod moving devices 6 comprise a motor 601, a base 602, a screw rod 603 and a sliding block 604, and the sliding block 604 is made of heat-insulating plastic;

the electric brush device 7 comprises an electric brush head 701, an electric brush clamp 702, an elastic copper sheet 703 and a connector lug 704, wherein the electric brush clamp 702 is fixedly connected with a sliding block 604, the electric brush head 701 adopts an type conductive block, the contact surface of the electric brush head and the part 1 to be processed is subjected to arc treatment, the surface which is far away from the part 1 to be processed is in contact with the elastic copper sheet 703, the electric brush head 701 is ensured to be always in contact with the part 1 to be processed in the motion process, the electric brush clamp 702 adopts a heat-resistant insulating material, a counter bore is arranged in the electric brush clamp 702, and the electric brush head 701 and the sliding block 604 are connected by a screw, so that the.

In the electromagnetic field device, two electromagnetic coils 2 form a stable directional uniform magnetic field in the mutual region, and the direction of the magnetic field can be changed along with the change of the current anode and the current cathode in the electromagnetic coils.

The two electric brush devices 7 and the laser head 5 are always kept on straight lines, so that the electric field at the laser head 7 is ensured to be a stable and directional uniform electric field, the electric field intensity is high, the current utilization rate is high, and the direction of the electric field can be changed along with the change of the positive pole and the negative pole of the current.

The magnetic and electric fields interact to form a stable Lorentz force with controllable direction. And the electric brush device 7 is followed with the laser head 5, thereby ensuring that the Lorentz force direction of the laser head 5 processing area is maintained stable.

The part 1 to be processed, to which the electromagnetic field device can be applied, is not limited to a horizontal plane part, and can be a curved surface, an angular working surface or a vertical working surface, and even an elevation working surface.

In the laser processing area, the stable electric field is coupled with the stable magnetic field to form directional Lorentz force, and an additional force field is provided for the laser processing area.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.