WO2020047697A1 - 一种激光切割机自动更换喷嘴装置 - Google Patents

一种激光切割机自动更换喷嘴装置 Download PDF

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Publication number
WO2020047697A1
WO2020047697A1 PCT/CN2018/103772 CN2018103772W WO2020047697A1 WO 2020047697 A1 WO2020047697 A1 WO 2020047697A1 CN 2018103772 W CN2018103772 W CN 2018103772W WO 2020047697 A1 WO2020047697 A1 WO 2020047697A1
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Prior art keywords
nozzle
hole
seat
cutting machine
gear shaft
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PCT/CN2018/103772
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English (en)
French (fr)
Inventor
冷志斌
凌步军
倪振兴
蒋亚
潘文金
贾明明
张宇
李亚敏
朱鹏程
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江苏亚威机床股份有限公司
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Priority to PCT/CN2018/103772 priority Critical patent/WO2020047697A1/zh
Publication of WO2020047697A1 publication Critical patent/WO2020047697A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment

Definitions

  • the invention relates to an automatic nozzle replacement device for a laser cutting machine.
  • the laser cutting machine industry has become more and more demanding in terms of cutting efficiency and degree of automation.
  • the machine's kinematic performance can be improved, and cutting can be improved by optimizing the cutting parameters of the process.
  • Quality by reducing the stagnation time of the cutting machine by equipped with an automatic loading and unloading device, only for different materials and different plate thicknesses.
  • the nozzle of the laser cutting machine is often replaced. Usually the nozzle is threaded on the cutting head. Manually, manual replacement is required.
  • a manual operation cycle may include the following five steps: cutting head suspension, removing the nozzle, identifying the nozzle to be installed, screwing the nozzle to be used, and performing nozzle calibration. It often requires consumption. 3-5 minutes or even longer, the nozzle replacement efficiency is low, and the labor intensity of the workers is high.
  • an object of the present invention is to provide a laser cutting machine automatic nozzle replacement device with simple structure, convenient operation, which can greatly improve the replacement efficiency of nozzles and low labor intensity of workers.
  • the utility model comprises a box body composed of an upper box body and a lower box body.
  • a plurality of synchronous gear shafts connected in series and a driving gear shaft for driving the rotation of the synchronous gear shaft are vertically arranged in the box body.
  • the driving gear shaft center is provided with a mounting hole and the synchronous gear shaft.
  • the shaft center is provided with a through hole, a guide rod is provided in the through hole, a nozzle placement seat is provided at the upper end of the guide rod, a guide pin is provided on the side wall of the guide rod, and a guide groove for receiving the guide pin is provided on the inner wall of the through hole.
  • a positioning block for positioning the nozzle is arranged at the upper end of the placing seat.
  • the lower end of the guide rod is provided with an axial cavity
  • a step is provided on the inner wall of the through hole of the synchronous gear shaft
  • a spring seat is provided in the through hole
  • an outer wall of the lower end of the spring seat is provided to cooperate with the step.
  • the lower end of the table is provided with a retaining ring that is clamped on the inner wall of the through hole.
  • the lower end of the spring seat is provided with an axial guide hole.
  • the axial guide hole is provided with a screw that penetrates the upper end of the spring seat and the axial recess of the guide rod. The bottom surface of the cavity is fixedly connected.
  • a spring is arranged in the axial concave cavity, and the spring is sleeved outside the spring seat and the screw.
  • the upper and lower ends of the spring respectively abut the bottom surface of the axial concave cavity and the upper end surface of the clamping table.
  • the lower end surface of the upper box body and the upper end surface of the lower box body are respectively provided with bearing mounting holes, the bearing mounting holes are internally connected with bearings, and the upper and lower ends of the driving gear shaft and the upper and lower ends of the synchronous gear shaft are respectively Connected to the bearing.
  • the bearing is a deep groove ball bearing.
  • a transition seat is provided at the upper end of the guide rod, and the nozzle placement seat is fixedly installed at the upper end of the transition seat.
  • a side wall of the upper box body is provided with an oil injection port.
  • the upper end surface of the transition seat is provided with a receiving cavity
  • the bottom surface of the receiving cavity is provided with a positioning hole
  • the lower end surface of the nozzle placement seat is provided with a positioning pin that cooperates with the positioning hole.
  • the screw is fixedly connected with the nozzle placing seat.
  • the number of the positioning blocks is two, the two positioning blocks are symmetrically distributed with respect to the axis of the nozzle placement seat, and the inner surfaces of the two positioning blocks are parallel.
  • the structure of the invention is simple. By adopting the structure, the rotation of the nozzle placing seat can drive the nozzle to rotate, realize the installation and disassembly of the nozzle, greatly improve the nozzle replacement efficiency, and reduce the labor intensity of workers.
  • FIG. 1 is a schematic structural diagram of the present invention.
  • Fig. 2 is a sectional view taken along A-A in Fig. 1.
  • FIG. 3 is a partially enlarged view of B in FIG. 2.
  • Figure 4 is a schematic diagram of the connection of the guide rod, the transition seat and the nozzle placement seat.
  • FIG. 5 is a partially enlarged view of C in FIG. 1.
  • 1 is the upper case
  • 2 is the lower case
  • 3 is the synchronous gear shaft
  • 4 is the drive gear shaft
  • 5 is the mounting hole
  • 6 is the guide rod
  • 7 is the nozzle placement seat
  • 8 is the guide pin
  • 9 is Positioning block
  • 10 is a spring seat
  • 11 is a clamping table
  • 12 is a retaining ring
  • 13 is an axial guide hole
  • 14 is a screw
  • 15 is a spring
  • 16 is a bearing
  • 17 is a transition seat
  • 18 is a fuel injection port
  • 19 is a positioning
  • the holes 20 are set screws.
  • a laser cutting machine automatic nozzle replacement device includes a box body composed of an upper box body 1 and a lower box body 2.
  • a plurality of synchronous gear shafts 3 connected in series and a driving gear shaft driving the rotation of the synchronous gear shaft 3 are vertically arranged in the box body. 4.
  • the driving gear shaft 4 is provided with a mounting hole 5 at its axis, and the synchronous gear shaft 3 is provided with a through hole at its center.
  • a guide rod 6 is provided in the through hole, and a nozzle placement seat 7 and a guide rod 6 are provided at the upper end of the guide rod 6.
  • a guide pin 8 is provided on the side wall, a guide groove for receiving the guide pin 8 is provided on the inner wall of the through hole, and a positioning block 9 for positioning the nozzle is provided on the upper end of the nozzle placing seat 7.
  • the lower end of the guide rod 6 is provided with an axial cavity
  • a step is provided on the inner wall of the through hole of the synchronous gear shaft 3
  • a spring seat 10 is provided in the through hole
  • an outer wall of the lower end of the spring seat 10 is provided.
  • the lower end of the clamping table 11 is provided with a retaining ring 12 which is caught on the inner wall of the through hole.
  • the lower end of the spring seat 10 is provided with an axial guide hole 13.
  • the axial guide hole 13 is provided with a screw 14.
  • the upper end of the 14 penetrating spring seat 10 is fixedly connected to the bottom surface of the axial cavity of the guide rod 6.
  • a spring 15 is arranged in the axial cavity.
  • the spring 15 is sleeved outside the spring seat 10 and the screw 14.
  • the upper and lower ends of the spring 15 respectively bear against the shaft.
  • the lower end surface of the upper box body 1 and the upper end surface of the lower box body 2 are respectively provided with bearing mounting holes, the bearing mounting holes are internally connected with bearings 16, the upper and lower ends of the driving gear shaft 4, and the synchronous gear.
  • the upper and lower ends of the shaft 3 are connected to bearings 16 respectively.
  • the bearing 16 is a deep groove ball bearing.
  • a transition seat 17 is provided on the upper end of the guide rod 6, and the nozzle placement seat 7 is fixedly installed on the upper end of the transition seat 17.
  • a side wall of the upper box body 1 is provided with an oil injection port 18.
  • the upper end surface of the transition base 17 is provided with a receiving cavity
  • the bottom surface of the receiving cavity is provided with a positioning hole 19
  • the lower end surface of the nozzle placement base 7 is provided with a positioning pin that cooperates with the positioning hole 19.
  • the wall is fixedly connected to the nozzle placement base 7 through a set screw 20.
  • the number of the positioning blocks 9 is two, and the two positioning blocks 9 are symmetrically distributed with respect to the axis of the nozzle placement base 7 and the inner surfaces of the two positioning blocks 9 are parallel.
  • the nozzle of this device adopts a slightly improved design based on the original Precitec nozzle.
  • the outer contour of the nozzle is modified to approximate a regular hexagon, and its width is slightly smaller than the distance between the inner surfaces of the two positioning blocks at the upper end of the nozzle placement seat. The inner surfaces of the two positioning blocks are pushed to realize the rotation of the nozzle and complete the installation and disassembly of the nozzle.
  • the cutting head When disassembling the nozzle, the cutting head goes down. Most of the time, the hexagonal surface of the nozzle does not match the positioning block of the nozzle placement seat. When the nozzle goes down with the cutting head, its bottom is in contact with the nozzle placement seat and is stressed. At the same time, the nozzle placement base and the transition base rotate slowly while being lowered by a spring under a force, so that the nozzle completely falls into the nozzle placement base, and the hexagonal surface of the nozzle contacts through the inner surface of the positioning block, smoothly. Achieve nozzle rotation.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

一种激光切割机自动更换喷嘴装置，包括由上盒体（1）和下盒体（2）组成的盒体，盒体内竖直放置串联连接的若干同步齿轮轴（3）和驱动同步齿轮轴（3）转动的驱动齿轮轴（4），驱动齿轮轴（4）轴心设有安装孔（5），同步齿轮轴（3）的轴心设有通孔，通孔内设有导向杆（6），导向杆（6）上端设有喷嘴摆放座（7），导向杆（6）侧壁上设有导向销（8），通孔内壁上设有容纳导向销（8）的导向槽，喷嘴摆放座（7）上端设有定位喷嘴的定位块（9）。本装置结构简单，通过采用本结构，喷嘴摆放座（7）的转动能够带动喷嘴旋转，实现喷嘴的安装和拆卸，大大提高了喷嘴更换效率，降低了工人的劳动强度。

Description

一种激光切割机自动更换喷嘴装置 技术领域
本发明涉及一种激光切割机自动更换喷嘴装置。
背景技术
随着现代工业智能化的不断发展，激光切割机行业在切割效率、自动化程度等方面要求越来越高，通过优化机械结构，高性能电机选型提高机床运动性能，通过优化工艺切割参数提高切割质量，通过配备自动上下料装置缩短切割停滞时间，单是针对不同材质不同板厚的板料，为了达到应有的切割效果，往往需要更换激光切割机的喷嘴，通常喷嘴采用螺纹连接在切割头上，需要人工进行手动更换，一个手动操作的循环过程大概有：切割头暂停、取下喷嘴、识别要装上去的喷嘴、将要用的喷嘴旋紧、执行喷嘴标定等五个步骤，往往需要消耗3-5分钟甚至更长的时间，更换喷嘴效率低下，工人劳动强度大。
发明内容
针对上述缺陷，本发明的目的在于提供一种结构简单，操作方便，能够大大提高喷嘴的更换效率，工人劳动强度低的一种激光切割机自动更换喷嘴装置。
为此本发明所采用的技术方案是：
包括由上盒体和下盒体组成的盒体，盒体内竖直放置串联连接的若干同步齿轮轴和驱动同步齿轮轴转动的驱动齿轮轴，驱动齿轮轴轴心设有安装孔，同步齿轮轴的轴心设有通孔，通孔内设有导向杆，导向杆上端设有喷嘴摆放座，导向杆侧壁上设有导向销，通孔内壁上设有容纳导向销的导向槽，喷嘴摆放座上端设有定位喷嘴的定位块。
作为上述技术方案的进一步改进，所述导向杆的下端设有轴向凹腔，同步齿轮轴的通孔内壁上设有台阶，通孔内设有弹簧座，弹簧座下端外壁设有与台阶配合的卡台，卡台下端设有卡在通孔内壁上的挡圈，弹簧座下端设有轴向导向孔，轴向导向孔内设有螺钉，螺钉贯穿弹簧座上端与导向杆的轴向凹腔底面固定连接，轴向凹腔内设有弹簧，弹簧套在弹簧座和螺钉外，弹簧上端和下端分别抵住轴向凹腔底面和卡台上端面。
作为上述技术方案的进一步改进，所述上盒体下端面和下盒体上端面分别设有轴承安装孔，所述轴承安装孔内接有轴承，驱动齿轮轴上下端和同步齿轮轴上下端分别与轴承连接。
作为上述技术方案的进一步改进，所述轴承为深沟球轴承。
作为上述技术方案的进一步改进，所述导向杆上端设有过渡座，所述喷嘴摆放座固定安装在过渡座上端。
作为上述技术方案的进一步改进，所述上盒体的侧壁上设有注油口。
作为上述技术方案的进一步改进，所述过渡座上端面设有容纳腔，容纳腔底面设有定位孔，喷嘴摆放座下端面设有与定位孔配合的定位销，容纳腔侧壁通过紧定螺钉与喷嘴摆放座固定连接。
作为上述技术方案的进一步改进，所述定位块的数量为两个，两个定位块相对于喷嘴摆放座轴心线对称分布，两个定位块的内侧表面平行。
本发明的优点是：
本发明结构简单，通过采用本结构，喷嘴摆放座的转动能够带动喷嘴旋转，实现喷嘴的安装和拆卸，大大提高了喷嘴更换效率，降低了工人的劳动强度。
附图说明
图1是本发明的结构示意图。
图2是图1中A-A的剖视图。
图3是图2中B的局部放大图。
图4是导向杆、过渡座和喷嘴摆放座的连接示意图。
图5是图1中C的局部放大图。
图中1是上盒体、2是下盒体、3是同步齿轮轴、4是驱动齿轮轴、5是安装孔、6是导向杆、7是喷嘴摆放座、8是导向销、9是定位块、10是弹簧座、11是卡台、12是挡圈、13是轴向导向孔、14是螺钉、15是弹簧、16是轴承、17是过渡座、18是注油口、19是定位孔、20是紧定螺钉。
具体实施方式
一种激光切割机自动更换喷嘴装置，包括由上盒体1和下盒体2组成的盒体，盒体内竖直放置串联连接的若干同步齿轮轴3和驱动同步齿轮轴3转动的驱动齿轮轴4，驱动齿轮轴4轴心设有安装孔5，同步齿轮轴3的轴心设有通孔，通孔内设有导向杆6，导向杆6上端设有喷嘴摆放座7，导向杆6侧壁上设有导向销8，通孔内壁上设有容纳导向销8的导向槽，喷嘴摆放座7上端设有定位喷嘴的定位块9。
作为上述技术方案的进一步改进，所述导向杆6的下端设有轴向凹腔，同步齿轮轴3的通孔内壁上设有台阶，通孔内设有弹簧座10，弹簧座10下端外壁设有与台阶配合的卡台11，卡台11下端设有卡在通孔内壁上的挡圈12，弹簧座10下端设有轴向导向孔13，轴向导向孔13内设有螺钉14，螺钉14贯穿弹簧座10上端与导向杆6的轴向凹腔底面固定连接，轴向凹腔内设有弹簧15，弹簧15套在弹簧座10和螺钉14外，弹簧15上端和下端分别抵住轴向凹腔底面和卡台11上端面。
作为上述技术方案的进一步改进，所述上盒体1下端面和下盒体2上端面分别设有轴承安装孔，所述轴承安装孔内接有轴承16，驱动齿轮轴4上下端和同步齿轮轴3上下端分别与轴承16连接。
作为上述技术方案的进一步改进，所述轴承16为深沟球轴承。
作为上述技术方案的进一步改进，所述导向杆6上端设有过渡座17，所述喷嘴摆放座7固定安装在过渡座17上端。
作为上述技术方案的进一步改进，所述上盒体1的侧壁上设有注油口18。
作为上述技术方案的进一步改进，所述过渡座17上端面设有容纳腔，容纳腔底面设有定位孔19，喷嘴摆放座7下端面设有与定位孔19配合的定位销，容纳腔侧壁通过紧定螺钉20与喷嘴摆放座7固定连接。
作为上述技术方案的进一步改进，所述定位块9的数量为两个，两个定位块9相对于喷嘴摆放座7轴心线对称分布，两个定位块9的内侧表面平行。
本装置的喷嘴采用在Precitec原装喷嘴基础上进行细微改进设计，喷嘴外轮廓修改为近似正六边形，其宽度略小于喷嘴摆放座上端两个定位块内侧表面的距离，通过摆放座旋转，两个定位块的内侧表面推动，实现喷嘴转动，完成喷嘴的安装于拆卸。
拆卸喷嘴时，切割头下探，绝大多数时候喷嘴的六角面与喷嘴摆放座的连个定位块不匹配，当喷嘴随着切割头下探，其底部与喷嘴摆放座接触并受力时，喷嘴摆放座连同过渡座一边旋转一边在受力的情况下通过弹簧缓慢下降，这样喷嘴就会完全掉进了喷嘴摆放座中，喷嘴的六角面通过定位块的内侧表面接触，顺利实现喷嘴旋转。
需要强调的是：以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (8)

  1. 一种激光切割机自动更换喷嘴装置，其特征在于，包括由上盒体和下盒体组成的盒体，盒体内竖直放置串联连接的若干同步齿轮轴和驱动同步齿轮轴转动的驱动齿轮轴，驱动齿轮轴轴心设有安装孔，同步齿轮轴的轴心设有通孔，通孔内设有导向杆，导向杆上端设有喷嘴摆放座，导向杆侧壁上设有导向销，通孔内壁上设有容纳导向销的导向槽，喷嘴摆放座上端设有定位喷嘴的定位块。
  2. 根据权利要求1所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述导向杆的下端设有轴向凹腔，同步齿轮轴的通孔内壁上设有台阶，通孔内设有弹簧座，弹簧座下端外壁设有与台阶配合的卡台，卡台下端设有卡在通孔内壁上的挡圈，弹簧座下端设有轴向导向孔，轴向导向孔内设有螺钉，螺钉贯穿弹簧座上端与导向杆的轴向凹腔底面固定连接，轴向凹腔内设有弹簧，弹簧套在弹簧座和螺钉外，弹簧上端和下端分别抵住轴向凹腔底面和卡台上端面。
  3. 根据权利要求1所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述上盒体下端面和下盒体上端面分别设有轴承安装孔，所述轴承安装孔内接有轴承，驱动齿轮轴上下端和同步齿轮轴上下端分别与轴承连接。
  4. 根据权利要求3所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述轴承为深沟球轴承。
  5. 根据权利要求1所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述导向杆上端设有过渡座，所述喷嘴摆放座固定安装在过渡座上端。
  6. 根据权利要求1所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述上盒体的侧壁上设有注油口。
  7. 根据权利要求5所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述过渡座上端面设有容纳腔，容纳腔底面设有定位孔，喷嘴摆放座下端面设有与定位孔配合的定位销，容纳腔侧壁通过紧定螺钉与喷嘴摆放座固定连接。
  8. 根据权利要求1所述的一种激光切割机自动更换喷嘴装置，其特征在于，所述定位块的数量为两个，两个定位块相对于喷嘴摆放座轴心线对称分布，两个定位块的内侧表面平行。
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