【正文】 程序應(yīng)包括固定循環(huán)和刀尖半徑半徑補償姓名：機器 時間：小結(jié)：刀具備注 運行1粗車2完成輪廓3開槽4攻螺紋5鉆孔本章問題：1 哪一個是控制車削直徑的軸線？2 使用硬質(zhì)卡盤抓的弊端？3 定義表面尺寸常數(shù)控制4 在旋轉(zhuǎn)中心上的走刀半徑中心是在哪個軸線上？5 切削圓弧和半徑時為什么刀尖半徑補償是必須的 ？6 固定循環(huán)中哪個字母地址控制切削深度？7 使用粗車循環(huán)時，？8 描述何時開槽循環(huán)將被使用？9 使用G76螺紋切削循環(huán)時哪個字母地址代表斜度？10，調(diào)用G76螺紋切削循環(huán)之前必須做什么？，編寫圖921程序。NO080 M30。 N0040 GOO 。 N0010 T0505。這可確保整個螺紋長度的適當(dāng)?shù)挠嗔繒幌鳒p。 。 Z 。螺紋切削循環(huán)(G76)G76為螺紋切削循環(huán)，可以通過使用本段代碼信息來減少多行編程。 N0035 G28 N0040 T0500。 N0015 G92 。是不可能的表達進給速度的一個開槽周期。控制器的角度來看的立場，該工具之前，向要求的開槽周期和用途的信息，以建立槽的寬度和深度的立場。 Z ，是槽底的寬。下面的例子為正確的開槽循環(huán)格式。 N0045 M30。 N0025 G00 。 N0005 G40。下個指令表為端面啄式鉆孔循環(huán)正確的格式：N0010 G74 Z1 25 。 N0065 G01 。 N0045 G01 1:,01。N0020 G96 S400 M03。N0001 G90 G20。當(dāng)那結(jié)束循環(huán)命令被調(diào)用時,結(jié)束循環(huán)的進刀量同時也被指定。N0080 T0100。N0060 G02 Xl .00 。 N0035 G00 。N0015 G92 X5,800 。下面我們利用圖915來舉例 ，為了便于理解，我們消除了TNR補償，使用了粗車固定循環(huán)（見圖9－16 ） 。這個程序有一個雙重的目的：它告訴控制器多大的余量，和它現(xiàn)在的Z方向上的坐標(biāo)，即刀具下次循環(huán)需要走的路徑。G71循環(huán)讀取指定數(shù)目的塊，以確定部分工件資料，并確定每次走刀路徑，切削深度，以及有多少次的重復(fù)循環(huán)。固定循環(huán)一個循環(huán)可以做一個路線指定。調(diào)用固定循環(huán)需要先編寫一個簡單的程序： （ 1 ）設(shè)置合適的X和Z軸并做快速點位移（G00） 。N0085 M30。 N0065 G01 。 N0045 G01 。 N0015 G92 。 915的數(shù)據(jù)是普通的刀尖半徑補償實例。圖 914 刀尖半徑方向矢量引用補償，程序?qū)⒉坏貌蛔鞒龆c移動。該刀具提示或假想車刀的刀尖有一個特定位置或方向，從中心的刀尖半徑。當(dāng)應(yīng)該采用右刀補時，就應(yīng)該調(diào)用 g42。刀尖半徑補償，可以是左刀補也可以是右刀補。大部分的刀具，我們使用的時候有半徑誤差。 (Threading cycle)N0060 G28。 (Direct RPM input)N0030 GOO 。 N000S G40。 (Grooving cycle call) N0035 G28 (Return to home through ) N0040 T0500。 (Tool 5, .125 wide grooving tool) N0015 G92 。Figure 917 Peck drilling cycle.GROOVING CYCLE (G75)The grooving cycle is used to cut grooves of varying widths automatically. To use the grooving cycle, the tool must be positioned to the start of the groove prior to calling the grooving cycle. Through a series of letter addresses, the controller can be manded to cut a groove of varying width and next example shows the proper format for the grooving cycle. NO010 G7S DO 。 (Rapid position the drill to the center of the stock and .200 of an inch in front of the work face) N00B0 G74 。 N0010 T0606。 (Profile of the part)N0070 GOO 。 (Profile of the part)N0050 G01 。N0025 GOO 。N0005 G40。N0075 G28。 (Profile of the part)N0055 G01 。 (Rapid position that indicates to the controllerour stock size and Z clearance point)N0030 G71 P35 Q65 D600 R010。N0010 T0101。N0085 M30。 (Profile of the part) N0065 G01 。 (Profile of the part) N0045 G01 。 N0015 G92 。Figure 912 Toolnose radius pensation allows us toprogram the part, not the tool path. The mathematical calculations that are needed to program a part profile with angles and radii, without the aid of cutter diameter pensation, can be very involved.on a turning center. When we set the X and Z axes of the tool, we create a square point on the tool. Most of the tools we use for turning have radii. To pensate for the radii, we need to use TNR pensation, which saves us from having to mathematically calculate the cutter path (see Figure 912).TNR pensation also lets us use the same program for a variety of tool types. With TNR pensation capabilities, the insert radius size can be ignored and the part profile can be programmed. The exact size of the cutting tool to be used is entered into the offset file, and when the offset is called, the tool path will automatically be offset by the tool radius.Toolnose radius pensation can be to the right or left of the part determine which offset you need, imagine yourself walking behind the cutting tool. Do you want the tool to the left of the programmed path or to the right (see Figure 913)? Figure 913 Toolnose pensation.Compensation direction is controlled by a Gcode. When a pensation to the left is desired, a G41 is used. When a pensation to the right is needed,a G42 is used. When using these cutter pensation codes, you need to specify how much the controller is to offset. The size of the radius is placed in the nose radius offset table, which is typically located adjacent to the tool file under the tool number being used. Toolnose radius information can be determined from catalogs or the insert