CN209830646U - Protection mechanism of three-dimensional five-axis 3D laser cutting machine cutting head - Google Patents
Protection mechanism of three-dimensional five-axis 3D laser cutting machine cutting head Download PDFInfo
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- CN209830646U CN209830646U CN201920467985.7U CN201920467985U CN209830646U CN 209830646 U CN209830646 U CN 209830646U CN 201920467985 U CN201920467985 U CN 201920467985U CN 209830646 U CN209830646 U CN 209830646U
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Abstract
The utility model discloses a protection mechanism of a three-dimensional five-axis 3D laser cutting machine cutting head, the cutting head comprises a mounting frame, the mounting frame comprises a portal frame, a Y-axis mounting frame and a Z-axis mounting frame, the portal frame is provided with a beam, the laser cutting head moves left and right in the direction of the beam of the portal frame, the portal frame moves up and down in the vertical direction, the cutting head comprises a nozzle which is used as a sensing electrode of a capacitance sensor, the nozzle is connected with the capacitance sensor which is used for adjusting the distance between the nozzle and a workbench, the nozzle is connected with the capacitance sensor, a first tension sensor is arranged on the Y-axis mounting frame to limit the moving distance of the Z-axis mounting frame provided with a cutting head body in the vertical direction, a first tension spring is pulled when the Z-axis mounting frame moves, the first tension sensor detects the tension force received by the first tension spring, the first control module controls the second driving motor to stop rotating, so that a double-protection effect is achieved, and the damage probability of the laser cutting head is reduced.
Description
Technical Field
The utility model relates to a laser cutting field, concretely relates to protection mechanism of five three-dimensional 3D laser cutting machine cutting heads.
Background
The high-power laser cutting has become the middle-flow grinding column device for processing metal plates at present, and has the advantages of high processing efficiency, high precision and the like, which are popular in the market. With the improvement of the cutting requirement of a workpiece, the cutting requirement of the three-dimensional cutting is improved from two-dimensional cutting, the robot three-dimensional cutting can meet the processing work with low precision and efficiency requirements in the field by the advanced, flexible and rapid flexible processing characteristics of the robot three-dimensional cutting, but the existing common three-dimensional laser cutting machine generally processes a three-dimensional workpiece by adopting the rotation of a laser cutting head at any angle and any position in a three-dimensional space for processing devices with higher precision and efficiency requirements, especially for the cutting processing of the three-dimensional workpiece with a complex space curved surface.
However, in large-scale laser cutting equipment, the cutting range of the laser cutting head is large, the existing 3-dimensional laser cutting machine controls the distance between the cutting head and the workpiece by using the nozzle as a capacitance induction pole, on one hand, the distance between the laser head and the workpiece is controlled by using capacitance, and after the nozzle changes along with the temperature, the capacitance of the nozzle changes, so that the distance control is unstable, and the safety distance between the cutting head and the workpiece cannot be always kept.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a protection machanism of three-dimensional five-axis 3D laser cutting machine cutting head that can play multiple guard action.
In order to achieve the above object, the utility model provides a protection mechanism for a cutting head of a three-dimensional five-axis 3D laser cutting machine, the cutting head comprises a mounting frame, the mounting frame comprises a portal frame, a Y-axis mounting frame and a Z-axis mounting frame, the portal frame is provided with a beam, the Y-axis mounting frame is connected with the beam in a sliding manner, the Z-axis mounting frame is connected in a sliding manner in the vertical direction of the Y-axis mounting frame, the portal frame is provided with a first driving motor, the first driving motor drives the Y-axis mounting frame to slide on the beam, the Y-axis mounting frame is provided with a second driving motor, the second driving motor drives the Z-axis mounting frame to slide in the vertical direction of the Y-axis mounting frame, the cutting head comprises a nozzle which is used as an induction pole of a capacitance sensor, the nozzle is connected with the capacitance sensor, the capacitance sensor is provided with a capacitance threshold value for setting the minimum distance between the nozzle and the workbench, the capacitance sensor is coupled with the second driving motor, when the capacitance sensor reaches the capacitance threshold value, the capacitance sensor controls the second driving motor to stop rotating, the protection mechanism comprises a Z-axis protection mechanism, the Z-axis protection mechanism comprises a first mounting seat, a first tension sensor and a first control module, the first mounting seat is fixedly arranged on the Y-axis mounting frame, the first tension sensor is fixedly connected to the upper end of the first mounting seat, the first tension sensor is provided with a first tension spring, the first tension spring is connected with the Z-axis mounting frame, the first tension sensor transmits the type of the first tension sensor to the first control module, the first control module transmits an electric signal to the second driving motor, the first control module is provided with a tension threshold value, and when the detection value of the first tension sensor is larger than the tension threshold value, the first control module controls the second driving motor to stop rotating.
As a further improvement, be provided with between first extension spring and the Z axle mount frame and connect the rope, first mount pad is provided with the first locating seat that is used for the location to connect the rope, first extension spring is connected with the connection rope.
As a further improvement, be provided with first guide rail on the first mount pad, first reference seat and first guide rail sliding connection, it fixes on first reference seat to connect rope upper segment position, first reference seat is connected to first extension spring one end.
As the utility model discloses a further improvement, Z axle protection mechanism still includes that the third prevention hits the piece, and this third prevention hits the piece and sets up the glide direction downside that corresponds Z axle mounting bracket at Y axle mounting bracket, the third prevention hits the piece and is position proximity switch, the third prevention hits the shift position that the piece is used for detecting Z axle mounting bracket, and this third prevention hits the mounted position that the piece prescribes a limit to the stroke range that slides of Z axle mounting bracket, keeps the distance of cutting head and workstation, the third prevention hits the piece and is coupled with second driving motor.
As a further improvement, the nozzle is telescopic toper cover tubulose, the nozzle includes that the diameter degressive a plurality of toper sleeve pipe in proper order, and a plurality of toper sleeve pipe cup joints each other, and is adjacent be provided with the spring part between the toper sleeve pipe is intraductal.
The utility model provides a protection machanism of laser cutting machine cutting head, through connecting electric capacity sensor with the nozzle, and set up first force sensor at the Y axle mount frame, be used for injecing the Z axle mount frame of installing the cutting head body and at the ascending displacement distance of vertical side, stimulate first extension spring when the Z axle mount frame removes, first force sensor detects the pulling force that first extension spring received, when the pulling force value surpassed the pulling force threshold value, first control module control second driving motor stall, play the dual protection effect, reduce the damage probability of laser cutting head.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the nozzle of the present invention;
fig. 3 is a schematic view of the installation structure of the present invention.
Description of the drawings: b1, a portal frame; b2, Y-axis mounting rack; b3, a Z-axis mounting rack; b4, a beam; b5, a first driving motor; b6, a second crash block; b7, a second driving motor; b8, a third collision prevention block; c11, a first mounting seat; c12, a first tension sensor; c13, a first control module; c14, a first tension spring; c15, connecting ropes; c16, a first positioning seat; c17, a first guide rail; c18, nozzle; c19, taper sleeve; c20, a spring element.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, examples and effect examples, without limiting the present invention.
As shown in fig. 1-3, a protection mechanism for a cutting head of a three-dimensional five-axis 3D laser cutting machine, the cutting head includes a mounting bracket, the mounting bracket includes a gantry b1, a Y-axis mounting frame b2 and a Z-axis mounting frame b3, the gantry b1 is horizontally arranged above a workbench, the gantry b1 is provided with a column and a beam b4, the column is arranged at two sides of the workbench and supports the beam b4, the Y-axis mounting frame b2 is slidably connected with the beam b4, a guide rail is arranged on the beam b4, preferably, the Y-axis mounting frame b2 is slidably connected with the beam b4 by arranging a screw nut, the Z-axis b3 is slidably connected in the vertical direction of the Y-axis mounting frame b2, a first driving motor b5 is arranged on the gantry b1, the first driving motor b5 drives the screw to rotate, the Y-axis mounting frame b2 slides on the beam b4, and the Y-axis mounting frame b 539b 3 is arranged on the Y-axis mounting frame b2 6, the preferable Z-axis mounting bracket b3 is slidably connected with the Y-axis mounting bracket b2 by providing a lead screw nut, the Z-axis mounting bracket b3 is rotatably driven to slide in the vertical direction of the Y-axis mounting bracket b2 by providing a second driving motor b7, the cutting head comprises a nozzle c18, the nozzle c18 is used as a sensing electrode of a capacitance sensor, the nozzle c18 is made of metal, preferably red copper, the nozzle c18 is connected with a capacitance sensor, the capacitance sensor is used for adjusting the distance between the nozzle c18 and the workbench, the workbench arranged at the lower end is grounded, and the workpiece is in conductive contact with the workbench, the capacitance sensor is provided with a capacitance threshold for setting the minimum distance between the nozzle c18 and the workbench, the capacitance sensor is coupled with the second driving motor b7, when the capacitance sensor reaches the capacitance threshold, the capacitance sensor controls the second driving motor b7 to stop rotating, the protection mechanism comprises a Z-axis protection mechanism, the Z-axis protection mechanism comprises a first mounting seat c11, a first tension sensor c12 and a first control module c13, wherein the first mounting seat c11 is fixedly arranged on a Y-axis mounting frame b2, the first tension sensor c12 is fixedly connected to the upper end of a first mounting seat c11, the first tension sensor c12 is provided with a first tension spring c14, the first tension spring c14 is connected with the Z-axis mounting frame b3, the first tension sensor c12 transmits the model number to the first control module c13, the first control module c13 transmits an electric signal to a second driving motor b7, a tension threshold value is set in the first control module c13, and when the detection value of the first tension sensor c12 is larger than the tension threshold value, the first control module c13 controls the second driving motor b7 to stop rotating.
As an improved specific embodiment, a connection rope c15 is arranged between the first tension spring c14 and the Z-axis mounting bracket b3, the first mounting seat c11 is provided with a first positioning seat c16 for positioning the connection rope c15, the connection rope c15 penetrates through the first positioning seat c16, the first tension spring c14 is connected with the connection rope c15, and the movement stroke of the Z-axis mounting bracket b3 is longer, so that the first tension spring c14 is protected by the connection rope c15, the tension spring is prevented from being deformed due to overload, and the tension detection accuracy is reduced.
As an improved specific embodiment, the first installation seat c11 is provided with a first guide rail c17, the first positioning seat c16 is slidably connected to the first guide rail c17, the upper section of the connecting rope c15 is fixed to the first positioning seat c16, one end of the first tension spring c14 is connected to the first positioning seat c16, when the first positioning seat c16 slides to the middle section of the first guide rail c17, the tension force applied to the first tension spring c14 exceeds a threshold value, the first positioning seat c16 of the first tension spring acts as a buffer, and the second driving motor b7 is controlled to stop working before the distance between the nozzle c18 and the workbench reaches a safety limit value.
As a modified specific embodiment, the Z-axis protection mechanism further includes a third bump b8, the third bump b8 is disposed at the lower side of the Y-axis mounting frame b2 corresponding to the sliding direction of the Z-axis mounting frame b3, the third bump b8 is a position proximity switch, the third bump b8 is used for detecting the moving position of the Z-axis mounting frame b3, the mounting position of the third bump b8 defines the sliding travel range of the Z-axis mounting frame b3 and keeps the distance between the cutting head and the worktable, the third bump b8 is coupled with the second driving motor b7, and the effect of preventing the collision between the nozzle c18 and the worktable is further achieved by the arrangement of the bump.
As an improved specific embodiment, the nozzle c18 is in the shape of a telescopic tapered sleeve c19, the nozzle c18 includes a plurality of tapered sleeves c19 with successively decreasing diameters, the tapered sleeves c19 are sleeved with each other, a spring element is arranged between the adjacent tapered sleeves c19, and when a third collision prevention block b8 or a first tension sensor c12 fails in a circuit feedback system, the nozzle c18 collides with a workbench and contracts to play a role in buffering.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A protection mechanism of three-dimensional five-axis 3D laser cutting machine cutting head, the cutting head includes the mounting bracket, the mounting bracket includes portal frame (b1), Y axle mounting bracket (b2) and Z axle mounting bracket (b3), this portal frame (b1) is provided with crossbeam (b4), Y axle mounting bracket (b2) and crossbeam (b4) sliding connection, Z axle mounting bracket (b3) is at the vertical direction sliding connection of Y axle mounting bracket (b2), be provided with first driving motor (b5) on portal frame (b1), this first driving motor (b5) drive Y axle mounting bracket (b2) slide on crossbeam (b4), Y axle mounting bracket (b2) is provided with second driving motor (b7), this second driving motor (b7) drive Z axle mounting bracket (b3) slide in the vertical direction of Y axle (b2), its characterized in that: the cutting head comprises a nozzle (c18), the nozzle (c18) is used as an induction pole of a capacitance sensor, the nozzle (c18) is connected with the capacitance sensor, the capacitance sensor is used for adjusting the distance between the nozzle (c18) and a workbench, the capacitance sensor is provided with a capacitance threshold value for setting the minimum distance between the nozzle (c18) and the workbench, the capacitance sensor is coupled with a second driving motor (b7), when the capacitance sensor reaches the capacitance threshold value, the capacitance sensor controls a second driving motor (b7) to stop rotating, the protection mechanism comprises a Z-axis protection mechanism, the Z-axis protection mechanism comprises a first mounting seat (c11), a first tension sensor (c12) and a first control module (c13), the first mounting seat (c11) is fixedly arranged on a Y-axis mounting seat (b2), and the first tension sensor (c12) is fixedly connected to the upper end of a first mounting seat (c11), the first tension sensor (c12) is provided with a first tension spring (c14), the first tension spring (c14) is connected with a Z-axis mounting rack (b3), the first tension sensor (c12) transmits a model number to a first control module (c13), the first control module (c13) transmits an electric signal to a second driving motor (b7), a tension threshold value is set in the first control module (c13), and when a detection value of the first tension sensor (c12) is larger than the tension threshold value, the first control module (c13) controls the second driving motor (b7) to stop rotating.
2. The protection mechanism of the three-dimensional five-axis 3D laser cutting machine cutting head according to claim 1, characterized in that a connecting rope (c15) is arranged between the first tension spring (c14) and the Z-axis mounting frame (b3), the first mounting seat (c11) is provided with a first positioning seat (c16) for positioning the connecting rope (c15), and the first tension spring (c14) is connected with the connecting rope (c 15).
3. The protection mechanism of the three-dimensional five-axis 3D laser cutting machine cutting head according to claim 2, characterized in that a first guide rail (c17) is arranged on the first mounting seat (c11), the first positioning seat (c16) is slidably connected with the first guide rail (c17), the upper section of the connecting rope (c15) is fixed on the first positioning seat (c16), and one end of the first tension spring (c14) is connected with the first positioning seat (c 16).
4. The protection mechanism of the cutting head of the three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that the Z-axis protection mechanism further comprises a third collision block (b8), the third collision block (b8) is arranged at the lower side of the Y-axis mounting bracket (b2) corresponding to the sliding direction of the Z-axis mounting bracket (b3), the third collision block (b8) is a position proximity switch, the third collision block (b8) is used for detecting the moving position of the Z-axis mounting bracket (b3), the installation position of the third collision block (b8) defines the sliding travel range of the Z-axis mounting bracket (b3) and keeps the distance between the cutting head and the workbench, and the third collision block (b8) is coupled with the second driving motor (b 7).
5. The protection mechanism of the cutting head of the three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that the nozzle (c18) is in the shape of a telescopic conical sleeve (c19), the nozzle (c18) comprises a plurality of conical sleeves (c19) with successively decreasing diameters, the plurality of conical sleeves (c19) are sleeved with each other, and a spring element is arranged between the adjacent conical sleeves (c 19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467985.7U CN209830646U (en) | 2019-04-09 | 2019-04-09 | Protection mechanism of three-dimensional five-axis 3D laser cutting machine cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467985.7U CN209830646U (en) | 2019-04-09 | 2019-04-09 | Protection mechanism of three-dimensional five-axis 3D laser cutting machine cutting head |
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| CN209830646U true CN209830646U (en) | 2019-12-24 |
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| CN201920467985.7U Active CN209830646U (en) | 2019-04-09 | 2019-04-09 | Protection mechanism of three-dimensional five-axis 3D laser cutting machine cutting head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842326A (en) * | 2020-01-16 | 2020-02-28 | 广东电网有限责任公司东莞供电局 | Porous flame cutting device |
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2019
- 2019-04-09 CN CN201920467985.7U patent/CN209830646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842326A (en) * | 2020-01-16 | 2020-02-28 | 广东电网有限责任公司东莞供电局 | Porous flame cutting device |
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Address after: 325000 No. 4258, 3rd road, Binhai Park, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: Pentium laser (Zhejiang) Co.,Ltd. Address before: 325000 no.4258, 3rd road, Binhai Park, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee before: PENTA LASER (WENZHOU) Co.,Ltd. |