CN220259903U - Anti-collision protection device for cutting head of single-beam double-head laser cutting machine - Google Patents
Anti-collision protection device for cutting head of single-beam double-head laser cutting machine Download PDFInfo
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- CN220259903U CN220259903U CN202321710647.4U CN202321710647U CN220259903U CN 220259903 U CN220259903 U CN 220259903U CN 202321710647 U CN202321710647 U CN 202321710647U CN 220259903 U CN220259903 U CN 220259903U
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- cutting
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- cutting head
- mirror cavity
- cavity box
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- 238000005520 cutting process Methods 0.000 title claims abstract description 100
- 238000003698 laser cutting Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000112 cooling gas Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000011364 vaporized material Substances 0.000 description 1
Abstract
The utility model discloses an anti-collision protection device for a cutting head of a single-beam double-head laser cutting machine, which comprises a main body, wherein the main body comprises a cross beam, a first cutting head and a second cutting head; the first cutting head and the second cutting head are both arranged on the cross beam, the first cutting head comprises a first shield, a travel switch is arranged on the first shield, the travel switch is used for controlling a first motor and a second motor, and the first motor and the second motor are respectively used for controlling the first cutting head and the second cutting head to transversely move; the second cutting head comprises a second shield, an anti-collision rod is arranged on the second shield, and the anti-collision rod is aligned to the travel switch; the safety distance between the two cutting heads can be controlled by the travel switch arranged on the first shield through the collision-preventing rod arranged on the second shield, and the normally closed contact of the travel switch cuts off the power supply of the first motor and the power supply of the second motor to stop the two cutting heads from moving in opposite directions.
Description
Technical Field
The utility model relates to an anti-collision protection device for a cutting head of a single-beam double-head laser cutting machine.
Background
The laser cutting machine focuses laser emitted from the laser into laser beams with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point, and high-pressure gas coaxial with the laser beam blows away the molten or gasified metal. Along with the movement of the relative positions of the light beam and the workpiece, the material is finally formed into a kerf, so that the aim of cutting is achieved.
The laser cutting processing replaces the traditional mechanical knife with invisible light beams, has the characteristics of high precision, rapid cutting, automatic typesetting, material saving, smooth cut, low processing cost and the like, is not limited by cutting pattern limitation, and is gradually improved or replaced by the traditional metal cutting process equipment. The mechanical part of the laser tool bit is not contacted with the workpiece, so that the surface of the workpiece is not scratched in work; the laser cutting speed is high, the notch is smooth and flat, and no subsequent processing is generally needed; the cutting heat affected zone is small, the deformation of the sheet material is small, and the cutting seam is narrow (0.1 mm-0.3 mm); the notch has no mechanical stress and no shearing burr; the processing precision is high, the repeatability is good, and the surface of the material is not damaged; numerical control programming can process any plan, can cut a whole plate with a large breadth, does not need to open a die, and is economical and time-saving.
During cutting by a laser cutter, the beam is focused to a very small focal point by the lens of the cutting head, which is fixed in the z-axis, to achieve a high power density at the focal point. At this time, the heat input by the beam far exceeds the part of the heat reflected, conducted or diffused by the material, the material is quickly heated to the melting and vaporizing temperature, and at the same time, a high-speed air flow blows out the melted and vaporized material from the coaxial or non-coaxial side to form a hole cut by the material. Along with the relative movement of the focus and the material, the holes form continuous slits with very narrow width, and the cutting of the material is completed.
However, the safety distance between two cutting heads of the existing single-beam double-head laser cutting machine is set by system software, the method depends on the reliability of the system, and abnormal situations such as zero point loss of the two cutting heads can cause the risk of collision of the cutting heads.
The utility model comprises the following steps:
the utility model aims to solve the defects in the prior art and provides an anti-collision protection device for a cutting head of a single-beam double-head laser cutting machine.
An anti-collision protection device for a cutting head of a single-beam double-head laser cutting machine comprises a main body, wherein the main body comprises a cross beam; the beam is provided with a plurality of cutting heads, the cutting heads are provided with shields, a motor for controlling the cutting heads to move along the beam is arranged in each shield, an anti-collision rod is arranged on the shield of one cutting head among two adjacent cutting heads, a travel switch is arranged on the passport of the other cutting head, and the anti-collision rods are aligned to the travel switch.
Working principle: when the two cutting heads are close to each other, the travel switch arranged on the first shield is touched by the anti-collision rod arranged on the second shield, and the normally closed contact of the travel switch cuts off the first motor power supply and the second motor power supply to stop the two cutting heads from moving in opposite directions.
In order to repair the machine in time, the first cutting head is provided with an alarm device, and the alarm device gives an alarm after the travel switch is closed by the anti-collision rod.
In order to ensure the cutting effect of the cutting head on the material, the cutting head comprises a connecting mechanism for connecting a servo transmission mechanism of the laser cutting machine; a mirror cavity box connected with the connecting mechanism and used for accommodating a focusing lens; and a cutting nozzle connected with the mirror cavity box,
the cutting head further includes a capacitance sensor that senses a capacitance value between the cutting tip and the workpiece being cut.
In order to facilitate the cooling of the machine, the side wall of the mirror cavity box is provided with an opening, and the focusing lens is arranged in an extraction mirror cavity which can be inserted into the mirror cavity box through the opening;
the side wall of the lens cavity is provided with a lens cavity handle and an adjusting screw for adjusting concentricity between the focusing lens and the optical axis of the cutting head; the side wall of the mirror cavity box is provided with a cutting auxiliary gas channel communicated with one side of the mirror cavity close to the cutting nozzle; the side wall of the mirror cavity box is provided with a cooling gas channel communicated to one side of the mirror cavity close to the connecting mechanism.
To facilitate adjustment of the spacing, the cutting head further comprises a screw adjustment mechanism for connecting the mirror box and the cutting nozzle and adjusting the relative distance between the focal point of the focusing lens and the cutting nozzle;
the screw adjusting mechanism comprises a lock nut in threaded engagement with the outer surface of the mirror cavity box, a focusing nut in threaded engagement with the outer surface of the lock nut, and a focusing sliding sleeve fixedly connected with the focusing nut and extending in the mirror cavity box along the axial direction;
a pair of conical expansion sleeves arranged between the outer surface of the focusing sliding sleeve and the inner surface of the mirror cavity box; the guide block is arranged on the inner surface of the mirror cavity box, and when the lock nut rotates relative to the mirror cavity box, the guide block acts on the conical expansion sleeve to move relatively along the axial direction and lock the focusing sliding sleeve and the mirror cavity box; the capacitive sensor is disposed between the screw adjustment mechanism and the cutting nozzle.
The beneficial effects are that: compared with the prior art, the utility model reduces the risk of mutual collision of the two cutting heads and has the double-guarantee effect: when system software is ensured, the safety distance between the two cutting heads can also be controlled by an anti-collision rod arranged on the second shield to touch a travel switch arranged on the first shield, and a normally closed contact of the travel switch cuts off a first motor power supply and a second motor power supply to stop the two cutting heads from moving in opposite directions; the structure is simple and the cost is low.
Drawings
FIG. 1 is a schematic illustration of a bump guard for a single beam, double head laser cutter head;
in the figure, 1, a cross beam, 2, a first cutting head, 3, a travel switch, 4, an anti-collision rod, 5 and a second cutting head.
Detailed Description
The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.
As shown in fig. 1, a cross beam 1, a first cutting head 2, a travel switch 3, an anti-collision rod 4 and a second cutting head 5;
an anti-collision protection device for a cutting head of a single-beam double-head laser cutting machine, wherein a main body comprises a cross beam; the beam is provided with two cutting heads, namely a first cutting head and a second cutting head;
the first cutting head 2 and the second cutting head 5 are both arranged on the cross beam 1, a first shield is arranged on the first cutting head 2, a travel switch 3 is arranged on the first shield, the travel switch 3 is used for controlling a first motor and a second motor, and the first motor and the second motor are respectively used for controlling the first cutting head 2 and the second cutting head 5 to transversely move;
the second cutting head 5 is provided with a second shield, the second shield is provided with an anti-collision rod 4, and the anti-collision rod 4 is aligned with the travel switch 3.
In this embodiment, the first cutting head 2 is provided with an alarm device, and the alarm device gives an alarm after the travel switch 3 is closed by the bumper bar 4.
In this embodiment, the cutting head includes a connection mechanism for connecting a servo drive mechanism of a laser cutting machine; a mirror cavity box connected with the connecting mechanism and used for accommodating a focusing lens; and a cutting nozzle connected with the mirror cavity box,
the cutting head further includes a capacitance sensor that senses a capacitance value between the cutting tip and the workpiece being cut.
In this embodiment, the side wall of the lens chamber box is provided with an opening, and the focusing lens is disposed in an extraction type lens chamber which can be inserted into the lens chamber box through the opening;
the side wall of the lens cavity is provided with a lens cavity handle and an adjusting screw for adjusting concentricity between the focusing lens and the optical axis of the cutting head; the side wall of the mirror cavity box is provided with a cutting auxiliary gas channel communicated with one side of the mirror cavity close to the cutting nozzle; the side wall of the mirror cavity box is provided with a cooling gas channel communicated to one side of the mirror cavity close to the connecting mechanism.
In this embodiment, the cutting head further includes a screw adjusting mechanism for connecting the mirror box and the cutting nozzle and adjusting a relative distance between a focal point of the focusing lens and the cutting nozzle;
the screw adjusting mechanism comprises a lock nut in threaded engagement with the outer surface of the mirror cavity box, a focusing nut in threaded engagement with the outer surface of the lock nut, and a focusing sliding sleeve fixedly connected with the focusing nut and extending in the mirror cavity box along the axial direction;
a pair of conical expansion sleeves arranged between the outer surface of the focusing sliding sleeve and the inner surface of the mirror cavity box; the guide block is arranged on the inner surface of the mirror cavity box, and when the lock nut rotates relative to the mirror cavity box, the guide block acts on the conical expansion sleeve to move relatively along the axial direction and lock the focusing sliding sleeve and the mirror cavity box; the capacitive sensor is disposed between the screw adjustment mechanism and the cutting nozzle.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. An anti-collision protection device for a cutting head of a single-beam double-head laser cutting machine comprises a main body, and is characterized in that the main body comprises a cross beam; the beam is provided with a plurality of cutting heads, the cutting heads are provided with shields, a motor for controlling the cutting heads to move along the beam is arranged in each shield, an anti-collision rod is arranged on the shield of one cutting head among two adjacent cutting heads, a travel switch is arranged on the passport of the other cutting head, and the anti-collision rods are aligned to the travel switch.
2. The anti-collision protection device for the cutting head of the single-beam double-head laser cutting machine according to claim 1, wherein the cutting head is provided with an alarm device, and the alarm device gives an alarm after the travel switch is closed by the anti-collision rod.
3. The bump protection device for a cutting head of a single-beam double-head laser cutting machine according to claim 1, wherein the cutting head comprises a connection mechanism for connecting a servo drive mechanism of the laser cutting machine; a mirror cavity box connected with the connecting mechanism and used for accommodating a focusing lens; and a cutting tip connected to the mirror cavity box;
the cutting head further includes a capacitance sensor that senses a capacitance value between the cutting tip and the workpiece being cut.
4. A bump protection device for a cutting head of a single beam double head laser cutting machine according to claim 3, wherein the side wall of the mirror cavity box is provided with an opening, and the focusing lens is arranged in an extraction type mirror cavity which can be inserted into the mirror cavity box through the opening;
the side wall of the lens cavity is provided with a lens cavity handle and an adjusting screw for adjusting concentricity between the focusing lens and the optical axis of the cutting head; the side wall of the mirror cavity box is provided with a cutting auxiliary gas channel communicated with one side of the mirror cavity close to the cutting nozzle; the side wall of the mirror cavity box is provided with a cooling gas channel communicated to one side of the mirror cavity close to the connecting mechanism.
5. The bump guard device for a single beam, double head laser cutter head of claim 4, wherein the cutter head further comprises a screw adjustment mechanism for connecting the mirror box and the cutting nozzle and adjusting the relative distance between the focal point of the focusing lens and the cutting nozzle;
the screw adjusting mechanism comprises a lock nut in threaded engagement with the outer surface of the mirror cavity box, a focusing nut in threaded engagement with the outer surface of the lock nut, and a focusing sliding sleeve fixedly connected with the focusing nut and extending in the mirror cavity box along the axial direction;
a pair of conical expansion sleeves arranged between the outer surface of the focusing sliding sleeve and the inner surface of the mirror cavity box; the guide block is arranged on the inner surface of the mirror cavity box, and when the lock nut rotates relative to the mirror cavity box, the guide block acts on the conical expansion sleeve to move relatively along the axial direction and lock the focusing sliding sleeve and the mirror cavity box; the capacitive sensor is disposed between the screw adjustment mechanism and the cutting nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321710647.4U CN220259903U (en) | 2023-06-30 | 2023-06-30 | Anti-collision protection device for cutting head of single-beam double-head laser cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321710647.4U CN220259903U (en) | 2023-06-30 | 2023-06-30 | Anti-collision protection device for cutting head of single-beam double-head laser cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220259903U true CN220259903U (en) | 2023-12-29 |
Family
ID=89303572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321710647.4U Active CN220259903U (en) | 2023-06-30 | 2023-06-30 | Anti-collision protection device for cutting head of single-beam double-head laser cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220259903U (en) |
-
2023
- 2023-06-30 CN CN202321710647.4U patent/CN220259903U/en active Active
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