CN212470214U - Active obstacle avoidance laser cutting head and obstacle avoidance control system thereof - Google Patents
Active obstacle avoidance laser cutting head and obstacle avoidance control system thereof Download PDFInfo
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- CN212470214U CN212470214U CN202020411710.4U CN202020411710U CN212470214U CN 212470214 U CN212470214 U CN 212470214U CN 202020411710 U CN202020411710 U CN 202020411710U CN 212470214 U CN212470214 U CN 212470214U
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Abstract
The utility model provides an initiative is kept away barrier laser cutting head and is kept away barrier control system thereof, it is including installation round platform, ceramic ring, nozzle, first response ring and second response ring. The first induction ring comprises a first annular mounting seat arranged at the second end of the mounting round platform and a plurality of detection arms arranged on the first annular mounting seat. The second response ring is including installing second annular mount pad and detection ring on ceramic ring, and the detection ring is connected with second annular mount pad through a plurality of spokes. The detection ring detects the barrier by sensing the change of the capacitance, the outer diameter of the detection ring is larger than the diameter of the first end of the installation circular table, the capacitance sensing range is effectively expanded, and the sensitivity and the advance distance of the cutting head for avoiding the metal barrier are effectively improved. The detection ring can contact the detection arm through slight deformation, when collision is unavoidable, the detection ring touches the detection arm after deformation so as to trigger alarm, and the control system enables the system to stop quickly, thereby effectively avoiding collision.
Description
Technical Field
The utility model relates to a laser cutting field especially relates to an initiative is kept away barrier laser cutting head and is kept away barrier control system.
Background
When the laser cutting equipment is used for cutting and processing a plate material, the surface of the plate material sometimes has obstacles of tilting or protruding of a workpiece. In the laser processing process, when the machined part is tilted or a metal obstacle appears, the laser head and the obstacle collide with each other, the nozzle and the ceramic ring are damaged slightly, and the cutting head is directly collided to be scrapped seriously, so that the machining efficiency is seriously influenced. How to sense the existence of the obstacle in advance so as to avoid the obstacle by using a motion control mode is a function urgently required by the laser processing industry at present.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides an initiative is kept away barrier laser cutting head and is kept away barrier control system thereof aims at solving the problem that the scope of laser head response metal barrier is little and the rate of accuracy is low.
(II) technical scheme
In order to achieve the above object, the utility model provides an initiative is kept away barrier laser cutting head, initiative is kept away barrier laser cutting head and is included:
the diameter of the mounting circular truncated cone is gradually reduced from the first end to the second end;
the ceramic ring is arranged at the second end of the mounting circular truncated cone;
a nozzle disposed on the ceramic ring;
the first induction ring comprises a first annular mounting seat and a plurality of detection arms, the first annular mounting seat is arranged at the second end of the mounting circular table, and the first ends of the detection arms are arranged on the first annular mounting seat;
the second induction ring comprises a second ring-shaped mounting seat and a detection ring, the second ring-shaped mounting seat is mounted on the ceramic ring, and the detection ring is connected with the second ring-shaped mounting seat through a plurality of spokes;
the second end of the detection arm extends into the space between the second annular mounting seat and the detection ring;
the outer diameter of the detection ring is larger than the diameter of the first end of the installation round platform.
Preferably, the active obstacle avoidance laser cutting head further comprises an annular spring pressing sheet, and the annular spring pressing sheet is arranged between the second end of the mounting circular truncated cone and the first annular mounting seat.
Preferably, the plane where the first annular mounting seat is located is parallel to the plane where the second annular mounting seat is located, and the central point of the first annular mounting seat and the central point of the second annular mounting seat are both located on an extension line of the central axis of the mounting circular truncated cone.
Preferably, the distance between the detection arm and the inner circumference of the detection ring is 1mm-2 mm.
Preferably, the number of the detection arms is greater than or equal to three.
Preferably, the thickness of the first induction ring and the second induction ring is 0.8mm-1.2 mm.
Further, the utility model also provides an obstacle avoidance control system, which comprises a power supply, a capacitance detection circuit, a contact alarm circuit and the active obstacle avoidance laser cutting head;
the capacitance detection circuit and the contact alarm circuit are both connected with the power supply;
the second inductive loop is electrically connected with the capacitance detection circuit so as to be capable of sending the detected capacitance signal to the capacitance detection circuit;
the first induction ring and the second induction ring are connected with the contact alarm circuit.
(III) advantageous effects
The utility model has the advantages that: the detection ring is used for detecting the barrier by sensing the change of the capacitance, the outer diameter of the detection ring is larger than the diameter of the first end of the installation round platform, the capacitance induction range is effectively enlarged, the range of induction metal is enlarged, and the sensitivity and the advance distance of the cutting head for avoiding the metal barrier are effectively improved. The detection ring can contact the detection arm through slight deformation, when the detection ring cannot detect a barrier, the barrier can touch the detection ring firstly when collision cannot be avoided, the alarm is triggered after the detection arm is touched through deformation of the detection ring, the control system can enable the system to stop quickly, and the loss caused by collision is avoided effectively, so that the cutting head is protected effectively.
Drawings
Fig. 1 is a schematic view of the overall structure of the active obstacle avoidance laser cutting head of the present invention;
fig. 2 is a schematic structural view of a second sensing ring of the active obstacle avoidance laser cutting head of the present invention;
fig. 3 is the structure diagram of the first induction ring of the active obstacle avoidance laser cutting head of the present invention.
[ description of reference ]
1: a circular truncated cone is installed; 2: a ceramic ring; 3: a nozzle;
4: a first inductive loop; 41: a first annular mount; 42: a detection arm;
5: a second inductive loop; 51: a second annular mounting seat; 52: detecting the circular ring; 53: spokes;
6: and (4) pressing a ring-shaped spring.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides an initiative is kept away barrier laser cutting head, as shown in fig. 1, initiative is kept away barrier laser cutting head and is included: the device comprises a circular truncated cone 1, a ceramic ring 2, a nozzle 3, a first induction ring 4 and a second induction ring 5. Wherein, the diameter of installation round platform 1 reduces from first end to second end gradually, and ceramic ring 2 sets up in the second end of installation round platform 1 through the locking ring, and nozzle 3 sets up on ceramic ring 2.
The second sensing ring 5 comprises a second ring-shaped mounting seat 51 and a detection ring 52, the second ring-shaped mounting seat 51 is mounted between the ceramic ring 2 and the nozzle 3, and the detection ring 52 is connected with the second ring-shaped mounting seat 51 through a plurality of spokes 53. As shown in fig. 2, a second annular mounting seat 51 is mounted between the ceramic ring 2 and the nozzle 3 of the cutting head. The plane where the detection ring 52 is located is preferably a horizontal plane, so that a horizontal annular detection area is formed, the detection ring 52 is used for detecting obstacles by sensing the change of capacitance, the outer diameter of the detection ring 52 is larger than the diameter of the first end of the installation circular table 1, the capacitance induction range is effectively expanded, the metal induction range is enlarged, and the sensitivity and the advance distance of the cutting head for avoiding metal obstacles are effectively improved.
As shown in fig. 3, the first sensing ring 4 includes a first annular mounting seat 41 and a plurality of detecting arms 42, the first annular mounting seat 41 is disposed at a second end of the mounting circular table 1, a first end of the detecting arm 42 is disposed on the first annular mounting seat 41, and a second end of the detecting arm 42 extends between the second annular mounting seat 51 and the detecting ring 52. In a preferred embodiment, the angles between two adjacent detection arms 42 are the same, the second ends of the detection arms 42 are perpendicular to the plane of the detection ring 52, and the second ends of the detection arms 42 are close to the inner circumference of the detection ring 52. When the detection ring 52 cannot detect the obstacle and the collision is unavoidable, the obstacle firstly touches the detection ring 52, the deformation of the detection ring 52 touches the detection arm 42 and then triggers the alarm, the control system can quickly stop the system, the loss caused by the collision is effectively avoided, and the cutting head is effectively protected.
Furthermore, the active obstacle avoidance laser cutting head further comprises an annular spring pressing sheet 6, the first annular mounting base 41 is fixed to the second end of the mounting circular table 1 through a locking ring, and the annular spring pressing sheet 6 is arranged between the second end of the mounting circular table 1 and the first annular mounting base 41. The locking ring cooperates with the mounting boss 1 to effectively secure the first annular mounting seat 41 to the second end of the mounting boss 4. The annular spring pressing sheet 6 is arranged in a gap between the second end of the installation circular truncated cone 1 and the first annular installation seat 41, so that effective elastic support is provided for the first annular installation seat 41, and meanwhile, air leakage of the ceramic ring 2 can be avoided.
Preferably, the plane where the first annular mounting seat 41 is located is parallel to the plane where the second annular mounting seat 51 is located, and the center point of the first annular mounting seat 41 and the center point of the second annular mounting seat 51 are both located on the extension line of the central axis of the mounting circular truncated cone 1, so that the cutting heads are conveniently vertically stacked and mounted in sequence, the layout is reasonable, and the structure is more compact and firm.
Then, the distance between the detection arm 42 and the inner circumference of the detection ring 52 is 1mm-2mm, the detection ring 52 can touch the detection arm 42 only through slight deformation, so that an alarm is triggered, and the control system takes emergency measures according to the alarm technology to avoid further damage to the cutting head. The number of the detection arms 42 is greater than or equal to three, and when the detection ring 52 is deformed, the detection arms 42 can more effectively contact the detection ring 52, so that the detection accuracy of the detection ring 52 is improved.
And finally, the thicknesses of the first induction ring 4 and the second induction ring 5 are both 0.8mm-1.2 mm. When the detection ring 52 does not detect the current obstacle, the detection ring 52 firstly collides with the obstacle, the detection ring 52 made of a sheet with the thickness of 1.2mm or less deforms under slight collision, so that the detection arm 42 is touched, the detection arm 42 bends along with the deformation of the detection ring 52, a certain avoidance space is provided for collision, and the cutting head is effectively protected.
Additionally, the utility model also provides a keep away barrier control system keeps away barrier control system and includes power, electric capacity detection circuitry, contact warning circuit and as above initiatively keep away barrier laser cutting head. The capacitance detection circuit and the contact alarm circuit are both connected with a power supply; the second induction ring 5 is electrically connected with the capacitance detection circuit so as to be capable of sending the detected capacitance signal to the capacitance detection circuit; the first induction ring 4 and the second induction ring 5 are both connected with a contact alarm circuit. The control process of the obstacle avoidance control system is described as follows:
when the cutting head moves or fast moves to the processing part below, the obstacle avoidance control system detects the capacitance value of the detection ring 52 in real time and identifies the abnormal capacitance value, and when the capacitance value is at a safe level, the obstacle avoidance program does not interfere with the moving. When the obstacle avoidance control system detects that the capacitance value has abnormal change and detects that a metal obstacle appears in the moving direction of the cutting head, the active follow-up program is immediately started, and the response value, the speed and the acceleration of the up-and-down movement of the cutting head are controlled and improved. When the obstacle avoidance control system detects that an obstacle exists, the moving speed of the cutting head in the X-axis direction and the Y-axis direction is reduced according to data fed back by the capacitance value, and the Z-axis has sufficient time to perform the lifting action. When the collision can not be avoided, the detection ring 52 deforms and contacts the detection arm 42, so that the collision alarm can be triggered quickly when the cutting head is unavoidable or in misoperation, and the collision loss is reduced.
It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.
Claims (7)
1. The utility model provides an obstacle laser cutting head is kept away in initiative which characterized in that, the obstacle laser cutting head is kept away in initiative includes:
the diameter of the mounting circular truncated cone is gradually reduced from the first end to the second end;
the ceramic ring is arranged at the second end of the mounting circular truncated cone;
a nozzle disposed on the ceramic ring;
the first induction ring comprises a first annular mounting seat and a plurality of detection arms, the first annular mounting seat is arranged at the second end of the mounting circular table, and the first ends of the detection arms are arranged on the first annular mounting seat;
the second induction ring comprises a second ring-shaped mounting seat and a detection ring, the second ring-shaped mounting seat is mounted on the ceramic ring, and the detection ring is connected with the second ring-shaped mounting seat through a plurality of spokes;
the second end of the detection arm extends into the space between the second annular mounting seat and the detection ring;
the outer diameter of the detection ring is larger than the diameter of the first end of the installation round platform.
2. The active obstacle avoidance laser cutting head of claim 1, further comprising an annular spring pressing sheet disposed between the second end of the mounting boss and the first annular mounting seat.
3. The active obstacle avoidance laser cutting head of claim 1, wherein a plane of the first annular mounting seat is parallel to a plane of the second annular mounting seat, and a center point of the first annular mounting seat and a center point of the second annular mounting seat are both located on an extension line of a central axis of the mounting circular truncated cone.
4. An active obstacle avoidance laser cutting head according to any of claims 1 to 3, wherein the distance between the detection arm and the inner circumference of the detection ring is 1mm to 2 mm.
5. An active obstacle avoidance laser cutting head according to any of claims 1 to 3, wherein the number of said detection arms is greater than or equal to three.
6. An active obstacle avoidance laser cutting head according to any one of claims 1 to 3, wherein the first and second sensing rings are each 0.8mm to 1.2mm thick.
7. An obstacle avoidance control system, characterized in that the obstacle avoidance control system comprises a power supply, a capacitance detection circuit, a contact alarm circuit and the active obstacle avoidance laser cutting head of any one of claims 1-6;
the capacitance detection circuit and the contact alarm circuit are both connected with the power supply;
the second inductive loop is electrically connected with the capacitance detection circuit so as to be capable of sending the detected capacitance signal to the capacitance detection circuit;
the first induction ring and the second induction ring are connected with the contact alarm circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020411710.4U CN212470214U (en) | 2020-03-26 | 2020-03-26 | Active obstacle avoidance laser cutting head and obstacle avoidance control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020411710.4U CN212470214U (en) | 2020-03-26 | 2020-03-26 | Active obstacle avoidance laser cutting head and obstacle avoidance control system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN212470214U true CN212470214U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020411710.4U Active CN212470214U (en) | 2020-03-26 | 2020-03-26 | Active obstacle avoidance laser cutting head and obstacle avoidance control system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231735A (en) * | 2021-04-15 | 2021-08-10 | 大族激光科技产业集团股份有限公司 | Cutting head obstacle avoidance method and device, computer equipment and medium |
| CN115338548A (en) * | 2022-10-14 | 2022-11-15 | 四川智龙激光科技有限公司 | Obstacle avoiding method and system for cutting head of plane cutting machine |
-
2020
- 2020-03-26 CN CN202020411710.4U patent/CN212470214U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231735A (en) * | 2021-04-15 | 2021-08-10 | 大族激光科技产业集团股份有限公司 | Cutting head obstacle avoidance method and device, computer equipment and medium |
| CN115338548A (en) * | 2022-10-14 | 2022-11-15 | 四川智龙激光科技有限公司 | Obstacle avoiding method and system for cutting head of plane cutting machine |
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