CN215145799U - Anti-collision protection device for laser cutting head and cutting head - Google Patents
Anti-collision protection device for laser cutting head and cutting head Download PDFInfo
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- CN215145799U CN215145799U CN202120842110.8U CN202120842110U CN215145799U CN 215145799 U CN215145799 U CN 215145799U CN 202120842110 U CN202120842110 U CN 202120842110U CN 215145799 U CN215145799 U CN 215145799U
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Abstract
The utility model relates to a laser cutting head and an anti-collision protection device of the cutting head, the anti-collision protection device comprises an upper protection part arranged at the lower end of an upper part of the cutting head and a lower protection part arranged at the upper end of a lower part of the cutting head, the upper protection part and the lower protection part are connected by a magnetic force suction connection structure, one of the opposite surfaces of the upper protection part and the lower protection part is provided with a positioning pin, and the other opposite surface is provided with a positioning hole matched with the positioning pin to form a repeated positioning structure; when colliding, the collision position that anticollision protection device made the cutting head separates with other positions, alleviates the cutting head damage problem that the effort that produces because the collision caused, and the simultaneous transmission signal makes the cutting machine stop the operation, forms the power-off protection, realizes mechanical structure part and circuit part duplicate protection, has alleviateed the damage at three-dimensional cutting head collision position, has avoided the work of operating personnel repetition regulation of luminance, can effectively save the cost, raises the efficiency.
Description
Technical Field
The utility model belongs to the technical field of laser cutting, concretely relates to anticollision protection device of laser cutting head and cutting head.
Background
Nowadays, laser cutting technology is widely applied to various fields including automobiles and aerospace, and besides cutting plates and pipes, the requirement for cutting three-dimensional parts with complex curved surface structures is gradually increased.
In the prior art, five-axis linkage is realized by adopting a three-dimensional cutting head on the basis of a traditional laser cutting machine. In the process of cutting complex three-dimensional parts, to maintain the laser path perpendicular to the work surface, the cutting head may collide with the workpiece or fixture surface, causing damage to the cutting head.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide an anticollision protection device of laser cutting head and cutting head, can be used to the three-dimensional cutting head, when bumping in the motion process of cutting head, play the effect of protection cutting head.
The technical scheme of the utility model is realized like this: the utility model discloses an anticollision protection device of cutting head, including setting up last protection portion at the upper portion of cutting head lower extreme and setting up the lower protection portion in the lower part upper end of cutting head, it is connected through magnetic force actuation connection structure with protection portion down to go up protection portion.
Furthermore, magnets are arranged on the lower end face of the upper protection part or/and the upper end face of the lower protection part; the magnet is embedded in the lower end face of the upper protection part or the upper end face of the lower protection part, when one protection device of the upper protection part and the lower protection part is provided with the magnet, the other protection device is provided with a metal part capable of being adsorbed by the magnet, and a magnetic attraction connection structure is formed.
Furthermore, one of the opposite surfaces of the upper protection part and the lower protection part is provided with a positioning pin, and the other opposite surface is provided with a positioning hole matched with the positioning pin, so that a repeated positioning structure is formed.
Furthermore, the upper protection part and the lower protection part are both provided with light path through holes, and when the upper protection part and the lower protection part are attracted through the magnetic attraction connecting structure, the light path through holes of the upper protection part are communicated with the light path through holes of the lower protection part; the light path through hole of the upper protection part is communicated with the light path through hole of the upper part of the cutting head, and the light path through hole of the lower protection part is communicated with the light path through hole of the lower part of the cutting head.
Furthermore, an upper circuit board is arranged on the lower end face of the upper protection part, a lower circuit board is arranged on the upper end face of the lower protection part, and the upper circuit board and the lower circuit board are arranged, wherein at least one conductor is arranged on the first circuit board, the conductors are distributed at intervals, a circuit branch is arranged on the second circuit board, at least one pair of thimbles are connected in series on the circuit branch, two thimbles in each pair of thimbles are arranged at intervals and are mutually insulated to form a disconnected circuit branch, when the lower end face of the upper protection part and the upper end face of the lower protection part are attracted through a magnetic attraction connecting structure, each pair of thimbles on the second circuit board are contacted with the conductor on the first circuit board, so that the disconnected circuit branch is closed through conducting the conductor between the two thimbles in each pair of thimbles on the second circuit board, when the upper protection part is separated from the lower protection part, at least one thimble on the second circuit board is separated from the conductor on the first circuit board, the closed loop is opened; when the first circuit board is the lower circuit board, the second circuit board is the upper circuit board, and when the first circuit board is the upper circuit board, the second circuit board is the lower circuit board.
Furthermore, a plurality of arc-shaped bent electric conductors are arranged on the first circuit board, the arc-shaped bent electric conductors are distributed on the same circumference at intervals, and an insulator is arranged between every two adjacent electric conductors; the second circuit board is provided with a plurality of pairs of thimbles, the number of pairs of thimbles is the same as the number of the electric conductors, so that each pair of thimbles corresponds to one electric conductor one by one; the thimble is a spring thimble; the conductor is a gold-plated conductor.
Furthermore, the insulator is curved in an arc shape, and the electric conductors and the insulator ring are distributed in a staggered manner at the same circumference to form a circular first circuit board; the annular first circuit board is embedded into a first groove arranged on the upper end surface of the lower protection part or the lower end surface of the upper protection part; the second circuit board is also arranged in a second groove formed in the lower end face of the upper protection part or the upper end face of the lower protection part, and the second circuit board corresponds to the first circuit board up and down.
Furthermore, two end points of the circuit branch are connected with an electric control system, and the electric control system is used for alarming or/and controlling the working state of the cutting machine according to the connection or disconnection of the circuit branch.
Further, a connecting piece is connected between the upper protection part and the lower protection part and used for pulling the lower protection part and the lower part of the cutting head when the upper protection part is separated from the lower protection part; the outer walls of the upper protection part and the lower protection part are respectively provided with a connecting piece fixing lug.
Further, the connecting piece is a tension spring or a rope.
Furthermore, the anti-collision protection device is externally provided with a dust cover.
The utility model also discloses a laser cutting head, including the upper segment of cutting head, the lower part of cutting head and as above anticollision protection device, anticollision protection device's last protection portion and lower protection portion between or be connected with the connecting piece between the upper segment of cutting head and the lower part of cutting head for hold the lower part of protection portion and cutting head down when last protection portion separates with lower protection portion.
Further, the connecting piece is a tension spring or a rope.
The utility model discloses following beneficial effect has at least: the utility model discloses can be used to three-dimensional cutting head, because anticollision protection device's last protection portion passes through magnetic force actuation connection structure with lower protection portion and is connected, when bumping, anticollision protection device makes the lower part of cutting head collide the position promptly and the upper portion part of cutting head promptly other position separation, alleviate the cutting head damage problem that the effort that produces owing to the collision caused, send signal simultaneously makes laser cutting machine shut down, form the outage protection, realize mechanical structure part and circuit part duplicate protection promptly, and after laser cutting machine resumes the operation, can realize the quick repeated location of mechanical structure, the damage at three-dimensional cutting head collision position has been alleviateed, the work of operating personnel repeated dimming has been avoided, can effectively save the cost, high efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an upper protection portion of an anti-collision protection device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lower protection portion of an anti-collision protection device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a laser cutting head according to an embodiment of the present invention;
fig. 4 is an enlarged view of the portion P of fig. 3.
In the drawing, 1 is an upper protection portion, 11 is a positioning pin, 12 is a metal portion, 13 is a second circuit board, 14 is an ejector pin, 15 is an electric wire, 16 is an end point, 17 is an optical path via hole of the upper protection portion, 2 is a lower protection portion, 21 is a positioning hole, 22 is a magnet, 23 is a first circuit board, 24 is a conductor, 25 is an insulator, 26 is an optical path via hole of the lower protection portion, 3 is a tension spring, 4 is an upper member of a cutting head, and 5 is a lower member of the cutting head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example one
Referring to fig. 1 to 4, the embodiment of the utility model provides an anticollision protection device of cutting head, including setting up last protection part 1 at the upper part 4 lower extreme of cutting head and setting up lower protection part 2 in the lower part 5 upper end of cutting head, it is connected through magnetic force actuation connection structure with lower protection part 2 to go up protection part 1, is connected the upper part 4 of cutting head with the lower part 5 of cutting head, goes up protection part 1, lower protection part 2 all is equipped with the light path via hole, and when the lower terminal surface of last protection part 1 and the up end of lower protection part 2 were through magnetic force actuation connection structure actuation, the light path via hole 17 of going up protection part and the light path via hole 26 intercommunication of lower protection part.
The optical path via 17 of the upper guard communicates with the optical path via of the upper part 4 of the cutting head and the optical path via 26 of the lower guard communicates with the optical path via of the lower part 5 of the cutting head.
Further, a magnet 22 is arranged on the lower end face of the upper protection part 1 or/and the upper end face of the lower protection part 2; the magnet 22 is embedded on the lower end face of the upper protection part 1 or the upper end face of the lower protection part 2, when one protection device of the upper protection part 1 and the lower protection part 2 is provided with the magnet 22, the other protection device is provided with the metal part 12 which can be adsorbed by the magnet 22, and a magnetic attraction connection structure is formed.
The utility model discloses be provided with round powerful magnet 22 on the lower terminal surface of last protection part 1 or the up end of lower protection part 2. In this embodiment, a strong magnet 22 is provided in one turn on the upper end surface of the lower guard 2. The upper protection member 1 is made of a metal material that can be attracted to the magnet 22 partially or entirely.
Furthermore, an upper circuit board is arranged on the lower end face of the upper protection part 1, a lower circuit board is arranged on the upper end face of the lower protection part 2, and of the upper circuit board and the lower circuit board, at least one conductor 24 is arranged on a first circuit board 23, the conductors 24 are distributed at intervals, a circuit branch is arranged on a second circuit board 13, at least one pair of thimbles 14 are connected in series on the circuit branch, two thimbles 14 in each pair of thimbles 14 are arranged at intervals and are mutually insulated to form an open circuit branch, when the lower end face of the upper protection part 1 and the upper end face of the lower protection part 2 are attracted through a magnetic attraction connecting structure, each pair of thimbles 14 on the second circuit board 13 are contacted with the conductor 24 on the first circuit board 23, two thimbles 14 in each pair of thimbles 14 on the second circuit board 13 are conducted through the conductor 24, the open circuit branch is closed, when the upper protection part 1 is separated from the lower protection part 2, the closed loop is opened when at least one thimble 14 on the second circuit board 13 is separated from the conductor 24 on the first circuit board 23; when the first circuit board 23 is a lower circuit board, the second circuit board 13 is an upper circuit board, and when the first circuit board 23 is an upper circuit board, the second circuit board 13 is a lower circuit board.
Furthermore, a plurality of arc-shaped bent electric conductors 24 are arranged on the first circuit board 23, the plurality of arc-shaped bent electric conductors 24 are distributed on the same circumference at intervals, and an insulator 25 is arranged between every two adjacent electric conductors 24; a plurality of pairs of thimbles 14 are arranged on the second circuit board 13, the number of pairs of thimbles 14 is the same as that of the electric conductors 24, so that each pair of thimbles 14 corresponds to one electric conductor 24; the ejector pin 14 is a spring ejector pin 14; the conductor 24 is a gold-plated conductor 24.
Further, the insulator 25 is curved in an arc shape, and the conductors 24 and the insulator 25 are distributed alternately around the same circumference to form a circular first circuit board 23; the annular first circuit board 23 is embedded into a first groove arranged on the upper end surface of the lower protection part 2 or the lower end surface of the upper protection part 1; the second circuit board 13 is also disposed in a second groove disposed on the lower end surface of the upper protection part 1 or the upper end surface of the lower protection part 2, and the second circuit board 13 vertically corresponds to the first circuit board 23.
The annular first circuit board 23 of the present embodiment is located inside the one-turn powerful magnet 22.
Furthermore, one of the opposite surfaces of the upper protection part 1 and the lower protection part 2 is provided with a positioning pin 11, and the other opposite surface is provided with a positioning hole 21 for matching with the positioning pin 11, so as to form a repeated positioning structure. The positioning pin 11 of the present embodiment is a spherical positioning pin 11, and the positioning hole 21 is a spherical positioning hole 21, which is in clearance fit with the spherical positioning pin 11. Preferably, the positioning hole 21 of the present embodiment is a blind hole. The positioning pin 11 of the present embodiment is disposed on the lower end surface of the upper protection member 1, the positioning pin 11 protrudes from the surface of the metal part, and the positioning hole 21 is located on the upper end surface of the lower protection member 2.
Further, the utility model discloses a locating pin 11 is a plurality of, and 11 ring circumference of a plurality of locating pins distribute, and thimble 14 is located a plurality of locating pins 11 place circumferences. Preferably, the second circuit board 13 is annular, and the second circuit board 13 is also located within the circumference of the plurality of positioning pins 11.
Further, the utility model discloses a locating hole 21 is a plurality of, and with 11 one-to-ones of locating pin, a plurality of locating holes 21 ring circumference distribute, and a plurality of locating holes 21 place circumference is located the outside of the annular first circuit board 23 of circle. Further, the circumference of the positioning holes 21 is the same as the circumference of the powerful magnet 22.
Furthermore, two end points of the circuit branch are connected with an electric control cabinet, and the electric control cabinet is used for alarming or/and controlling the working state of the cutting machine according to the connection or disconnection of the circuit branch.
When only one pair of thimbles 14 is connected in series on the circuit branch, two thimbles 14 in the pair of thimbles 14 are respectively connected with two end points 16 through electric wires 15; when a plurality of pairs of ejector pins 14 are connected in series on the circuit branch, two ends of the plurality of pairs of ejector pins 14 connected in series through electric wires 15 are connected with two end points 16 through the electric wires 15 respectively, and two ejector pins 14 in each pair of ejector pins 14 are arranged at intervals and are insulated from each other.
Further, a connecting piece is connected between the upper protection part 1 and the lower protection part 2 and used for pulling the lower protection part 2 and the lower part 5 of the cutting head when the upper protection part 1 is separated from the lower protection part 2; the outer walls of the upper protection part 1 and the lower protection part 2 are respectively provided with a connecting piece fixing lug.
Further, the connecting piece is a tension spring 3 or a rope.
Furthermore, the anti-collision protection device is externally provided with a dust cover.
In this embodiment, a pair of contact spring pins 14 (i.e., 2 contact spring pins 14) is uniformly distributed at 3 positions on the second circuit board 13, and the contact spring pins 14 are connected in series by wires 15 to form an open loop. The outer side of the ring is provided with 3 ball-head beads which protrude out of the surface of the metal part and are mechanical structures for repeated positioning.
In the embodiment, the middle part of the first circuit board 23 has three uniformly-distributed gold-plated conductive areas, insulators 25 are arranged between the gold-plated conductive areas, a circle of powerful magnets 22 are arranged around the gold-plated conductive areas, three concave spherical positioning pins 11 are arranged between the gold-plated conductive areas, and the three positioning pins 11 can be adjusted up and down.
When the anti-collision protection device is correctly installed, the upper part and the lower part of the anti-collision protection device are tightly adsorbed together through the powerful magnet 22, and the three spherical beads are attached to the three spherical positioning pins 11.
Two end points of the circuit branch of the embodiment are connected with a power supply. When the anti-collision device works normally, the power supply is electrified, the upper circuit board and the lower circuit board supply power to each spring thimble 14 through the electric conduction principle to form a closed circuit connected in series, and the electric control cabinet receives signals and displays that the anti-collision structure works normally.
When collision happens, because the connection part is of a magnet 22 attracting connection structure, the upper protection part 1 and the lower protection part 2 can be separated by the collision force, at the moment, after the spring thimble 14 of the upper circuit board and the conductive gold-plated area of the lower circuit board are separated, the series closed loop is disconnected, and the system gives an alarm to stop the cutting machine. It should be noted that the series configuration is contemplated herein, and that an abnormal condition exists as long as one of the contact spring pins 14 is not in contact with the underlying conductive region.
After the alarm, an operator can directly reduce the lower protection part 2 and the upper protection part 1 in a contact manner, the ball head beads and the positioning pins 11 form a repeated positioning device, the position maintaining part connected at each time can be guaranteed to change, and the repeated dimming process is also omitted. After the anti-collision protection device is reinstalled, a reset command is applied to the operation panel, and the equipment can continue to work. The anti-collision device is externally provided with a dust cover, and the purpose is to prevent external dust from polluting a light path after collision.
Example two
With reference to fig. 1 to 4, the present embodiment further discloses a laser cutting head, comprising an upper part 4 of the cutting head, a lower part 5 of the cutting head, and an anti-collision protection device according to the first embodiment, wherein the upper protection part 1 of the anti-collision protection device is disposed at a lower end of the upper part 4 of the cutting head, the lower protection part 2 of the anti-collision protection device is disposed at an upper end of the lower part 5 of the cutting head, and a connecting member is connected between the upper protection part 1 and the lower protection part 2 of the anti-collision protection device or between the upper part 4 of the cutting head and the lower part 5 of the cutting head, for pulling the lower protection part 2 and the lower part 5 of the cutting head when the upper protection part 1 is separated from the lower protection part 2.
Furthermore, the connecting piece can deform when stressed and can restore to the original shape when not stressed. The connecting piece will have the shock-absorbing capacity, and the extension spring is comparatively suitable, can produce the buffering protection after the collision takes place. When external force is applied, the upper protection part and the lower protection part of the anti-collision protection device are separated, the equipment is stopped at once to be protected and started, and the upper part and the lower part can be repositioned and restored by the tension spring structure and the magnetic structure.
Further, the connecting member may be a rope or the like.
The utility model discloses realize three-dimensional five laser cutting machine after the cutting head bumps, realize mechanical structure part and circuit part duplicate protection, and the function that can quick repeated location. The damage of the collision part of the three-dimensional cutting head is reduced, the repeated dimming work of an operator is avoided, the cost can be effectively saved, and the efficiency is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an anticollision protection device of cutting head which characterized in that: the cutting head comprises an upper protection part arranged at the lower end of an upper part of the cutting head and a lower protection part arranged at the upper end of a lower part of the cutting head, wherein the upper protection part and the lower protection part are connected through a magnetic attraction connecting structure.
2. The collision protection device of claim 1, wherein: the lower end face of the upper protection part or/and the upper end face of the lower protection part are/is provided with magnets; the magnet is embedded in the lower end face of the upper protection part or the upper end face of the lower protection part, when one protection device of the upper protection part and the lower protection part is provided with the magnet, the other protection device is provided with a metal part capable of being adsorbed by the magnet, and a magnetic attraction connection structure is formed.
3. The collision protection device of claim 1, wherein: one of the opposite surfaces of the upper protection part and the lower protection part is provided with a positioning pin, and the other opposite surface is provided with a positioning hole matched with the positioning pin to form a repeated positioning structure; the upper protection part and the lower protection part are both provided with light path through holes, and when the upper protection part and the lower protection part are attracted through the magnetic attraction connecting structure, the light path through hole of the upper protection part is communicated with the light path through hole of the lower protection part; the light path through hole of the upper protection part is communicated with the light path through hole of the upper part of the cutting head, and the light path through hole of the lower protection part is communicated with the light path through hole of the lower part of the cutting head.
4. The collision protection device of claim 1, wherein: the lower end face of the upper protection part is provided with an upper circuit board, the upper end face of the lower protection part is provided with a lower circuit board, the upper circuit board and the lower circuit board are arranged in the upper circuit board, wherein the first circuit board is provided with at least one electric conductor, the electric conductors are distributed at intervals, the second circuit board is provided with a circuit branch, the circuit branch is connected with at least one pair of thimbles in series, the two thimbles in each pair of thimbles are arranged at intervals and are mutually insulated to form a disconnected circuit branch, when the lower end face of the upper protection part and the upper end face of the lower protection part are attracted through a magnetic attraction connecting structure, each pair of thimbles on the second circuit board are contacted with the electric conductor on the first circuit board, the two thimbles in each pair of thimbles on the second circuit board are conducted through the electric conductor, the disconnected circuit branch is closed, when the upper protection part is separated from the lower protection part, at least one thimble on the second circuit board is separated from the electric conductor on the first circuit board, the closed loop is opened; when the first circuit board is the lower circuit board, the second circuit board is the upper circuit board, and when the first circuit board is the upper circuit board, the second circuit board is the lower circuit board.
5. The collision protection device of claim 4, wherein: the first circuit board is provided with a plurality of arc-shaped bent electric conductors which are distributed on the same circumference at intervals, and an insulator is arranged between every two adjacent electric conductors; the second circuit board is provided with a plurality of pairs of thimbles, the number of pairs of thimbles is the same as the number of the electric conductors, so that each pair of thimbles corresponds to one electric conductor one by one; the thimble is a spring thimble; the conductor is a gold-plated conductor.
6. The collision protection device of claim 5, wherein: the insulator is curved in an arc shape, and the electric conductors and the insulator ring are distributed in a staggered manner at the same circumference to form a circular first circuit board; the annular first circuit board is embedded into a first groove arranged on the upper end surface of the lower protection part or the lower end surface of the upper protection part; the second circuit board is also arranged in a second groove formed in the lower end face of the upper protection part or the upper end face of the lower protection part, and the second circuit board corresponds to the first circuit board up and down.
7. The collision protection device of claim 4, wherein: two end points of the circuit branch are connected with an electric control system, and the electric control system is used for alarming or/and controlling the working state of the cutting machine according to the connection or disconnection of the circuit branch.
8. The collision protection device of claim 1, wherein: a connecting piece is connected between the upper protection part and the lower protection part and used for pulling the lower protection part and the lower part of the cutting head when the upper protection part is separated from the lower protection part; the outer walls of the upper protection part and the lower protection part are respectively provided with a connecting piece fixing lug; the connecting piece is a tension spring or a rope; the anti-collision protection device is externally provided with a dust cover.
9. A laser cutting head, its characterized in that: comprising an upper part of the cutting head, a lower part of the cutting head and an anti-collision protection device according to any one of claims 1 to 7, a connecting piece being connected between the upper protection part and the lower protection part of the anti-collision protection device or between the upper part of the cutting head and the lower part of the cutting head for pulling the lower protection part and the lower part of the cutting head when the upper protection part is separated from the lower protection part.
10. The laser cutting head of claim 9, wherein: the connecting piece is a tension spring or a rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120842110.8U CN215145799U (en) | 2021-04-23 | 2021-04-23 | Anti-collision protection device for laser cutting head and cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120842110.8U CN215145799U (en) | 2021-04-23 | 2021-04-23 | Anti-collision protection device for laser cutting head and cutting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215145799U true CN215145799U (en) | 2021-12-14 |
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ID=79362582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120842110.8U Active CN215145799U (en) | 2021-04-23 | 2021-04-23 | Anti-collision protection device for laser cutting head and cutting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215145799U (en) |
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2021
- 2021-04-23 CN CN202120842110.8U patent/CN215145799U/en active Active
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