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  • 磨床維修真的有這么難么?安吉圓磨機械說“NO”
  • 本站編輯:xghl發布日期:2020-02-22 11:14 瀏覽次數:
磨床維修(bj-anda.com)前的準備工作主要包括對所修機床修前狀態的調查,即對機床的精度狀況、故障情況的調查和分析,然后編制技術準備書,制定基本修理方案,列出所要更換或修復零件的明細表。準備工作的好壞直接影響到大修工作的順利進行和維修質量,應力求準確、全面、可行。
 
下面小編主要介紹下磨床的操作以及維修:
矩形槽的切削:
 
1.在切削較窄的矩形槽時,主切削刃寬度與溝槽的寬度相等,刀頭長度略大于槽深,車刀一次直進車出。
 
2.車削較寬的矩形槽,可用較窄的切槽刀,分幾次左右竄刀粗車,在槽底面和兩側面留出余量后,用精車刀車至尺寸。
 
成形槽的切削:
 
成形槽包括圓弧槽和梯形槽等。
 
1)較窄的圓弧槽或梯形槽,磨床將車槽刀刃磨成與成形槽的形狀和尺寸相同的形式,一次橫向進給車出。
 
2)較寬較深的成形槽,特別是內孔的成形槽,由于受到車刀剛度的制約,往往采取以下兩種方法:
 
①分兩步切削。一般是先用切槽刀車出直槽,然后用成形刀車削成形。
 
②左右竄刀進給或斜向進給。車床當威形槽特寬特深時,可在中滑板橫向進鮐的同時,搖動小滑板,使車刀作或左或右的微量移動,磨床形成單面切削的左右竄刀進給;或在中滑板橫向進給的同時,搖動小滑板,使車刀沿一個方向作微量移動的單面斜向進給。粗車后留有綜量,再用精車刀車至尺寸。
斜溝槽的切削:
 
磨床主軸不動作的故障原因
 
(1)電磁盤未吸磁
 
(2)主軸激活開關故障
 
(3)電磁開關故障
 
(4)控制線送脫磨床
 
(5)主軸聯軸器損壞
 
(6)主軸馬達故障
 
故障排除對策
 
(1)激活電磁盤電磁開關
 
(2)更換(照光)
 
(3)更換電磁開關
 
(4)檢查或更換控制線電路
 
(5)更換主軸聯軸器
 
(6)更換主軸開關
其實在磨床維修的磨削過程中產生振動,使砂輪和工件問相對位置發生周期性的變動,使工件表面產生振紋,嚴重影響加工質量和精度。
 
要提高磨削后的工件精度,除努力消除上述因素的影響外,還必須注意工件加工過程中定位基準的合理選擇、裝夾方法、砂輪的選擇與正確修理、合理選擇磨削用量和工藝方法。
 
 安吉圓磨機械科技有限公司創始于2016年,前身浙江勤龍機械科技股份有限公司,主要從事數控臥軸圓臺平面磨床設備的研發、生產、銷售。公司的信念是創新、誠信、思想、態度。
The preparatory work before grinding machine maintenance (www.zjqinlong. Com) mainly includes the investigation and analysis of the pre maintenance status of the repaired machine tool, that is, the investigation and analysis of the accuracy status and failure status of the machine tool, and then the preparation of technology, the formulation of basic repair plan, and the list of parts to be replaced or repaired. The quality of preparation work directly affects the smooth progress of overhaul work and maintenance quality, and it should be accurate, comprehensive and feasible.
 
 
 
The following editor mainly introduces the operation and maintenance of the lower grinder:
 
Cutting of rectangular groove:
 
 
 
1. When cutting a narrow rectangular groove, the width of the main cutting edge is equal to the width of the groove, the length of the tool head is slightly greater than the depth of the groove, and the turning tool goes in and out at a time.
 
 
 
2. For turning wide rectangular groove, narrow groove cutter can be used, and the rough turning can be done by several times of left and right tool shifting. After the allowance is left at the bottom and both sides of the groove, the fine turning tool can be used to turn to the size.
 
 
 
Cutting of forming groove:
 
 
 
Forming groove includes arc groove and trapezoid groove.
 
 
 
1) For the narrow arc groove or trapezoid groove, the grinding machine grinds the cutting edge of the groove into the form of the same shape and size as the forming groove, and feeds the groove out once.
 
 
 
2) Due to the rigidity of turning tool, the forming groove with wide and deep, especially the forming groove with inner hole, usually adopts the following two methods:
 
 
 
① Cut in two steps. Generally, the straight groove is first turned with a slotting cutter, and then turned with a forming cutter.
 
 
 
② Left and right tool shifting feed or oblique feed. When the groove of lathe is extremely wide and deep, the small sliding plate can be shaken to make the turning tool move slightly to the left or right while the middle sliding plate moves horizontally, and the grinding machine can form the left and right tool shifting feed of single side cutting; or when the middle sliding plate moves horizontally, the small sliding plate can be shaken to make the turning tool move slightly to the single side oblique feed along one direction. After the rough turning, a comprehensive amount shall be reserved, and then the fine turning tool shall be turned to the size.
 
Cutting of inclined groove:
 
 
 
Causes of failure of grinding machine spindle
 
 
 
(1) Electromagnetic disk is not magnetized
 
 
 
(2) Spindle activation switch fault
 
 
 
(3) Electromagnetic switch failure
 
 
 
(4) Control wire feed grinder
 
 
 
(5) Main shaft coupling damaged
 
 
 
(6) Spindle motor failure
 
 
 
Troubleshooting Countermeasures
 
 
 
(1) Activate the electromagnetic switch of the electromagnetic disk
 
 
 
(2) Replacement (lighting)
 
 
 
(3) Replace the electromagnetic switch
 
 
 
(4) Check or replace the control line circuit
 
 
 
(5) Replace the spindle coupling
 
 
 
(6) Replace the spindle switch
 
In fact, vibration occurs in the grinding process of grinder maintenance, which makes the relative position between the grinding wheel and the workpiece change periodically, and makes the workpiece surface produce vibration pattern, which seriously affects the processing quality and accuracy.
 
 
 
In order to improve the precision of the workpiece after grinding, in addition to eliminating the influence of the above factors, we must also pay attention to the reasonable selection of the positioning datum, the clamping method, the selection and correct repair of the grinding wheel, and the reasonable selection of the grinding amount and process method in the process of workpiece processing.
 
 
 
Anji round grinding machinery technology Co., Ltd. was founded in 2016, formerly Zhejiang Qinlong Machinery Technology Co., Ltd., mainly engaged in the research and development, production and sales of CNC horizontal axis round table surface grinder equipment. The belief of the company is innovation, honesty, thought and attitude.
 

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