Normal > surface quality and finish machining, often use planar grinding method. The machine tool with planar commonly used grinding is planar grinder, the working surface of emery wheel can be circumferential surface, also can be end panel. Normal >1. Main type and athletic Normal > should use means of grinding of emery wheel periphery, grinder main shaft presses horizontal layout; When using means of grinding of emery wheel end panel, grinder main shaft presses vertical layout. When planar grinding, workpiece can install the rectangular table that making move back and forth move point-blank to go up, also can install the circular workbench that making circular motion to go up. Normal Align=center> pursues the Normal > presses the combination of main shaft layout and workbench appearance, common and planar grinder can divide for following 4 kinds: Normal > (1) lie grinder of plane of axial quadrature table (graph 1a) is in this kind of machine tool, workpiece by grip of rectangular electromagnetism workbench. Arenaceous rotate rotates advocate athletic N, workbench makes fore-and-aft reciprocate F1, emery wheel wears intermittent upend to cut F2 of athletic F3 and transverse feed motion. (2) grinder of plane of table of quadrature of vertical scroll of painting or calligraphy (graph 1b) is on this kind of machine tool, arenaceous rotate rotates advocate athletic N, rectangular table makes fore-and-aft reciprocate F1, emery wheel wears intermittent upend to cut athletic F2. (3) grinder of plane of round table of vertical scroll of painting or calligraphy (graph 1c) is on this kind of machine tool, arenaceous rotate rotates advocate athletic circular table rotates F1 of circumferential feed motion, emery wheel wears intermittent upend to cut athletic F2. (4) lie grinder of plane of axial round table (graph 1d) is on this kind of machine tool, arenaceous rotate rotates advocate athletic N, circular table rotates F1 of circumferential feed motion, emery wheel wears F2 of successive radial feed motion and intermittent upend to cut athletic F3. In addition, the line of centre of turning circle of workbench can be adjusted to tilt the position, so that grinding cone. In 4 kinds of afore-mentioned planar grinder, the planar grinding machine that uses grinding of emery wheel end panel and the planar grinder photograph that use flange grinding are compared, often compare as a result of the emery wheel diameter of end panel grinding big, what can grind a workpiece at the same time is completely wide, grinding area is larger, so, productivity is taller. But, when end panel grinding, emery wheel and workpiece surface are camber line or surface contact, osculatory area is large, refrigeration is difficult, cut bits to eliminate not easily also, so, treatment precision and exterior surface roughness are a bit poor. Grinder of round table plane and photograph of grinder of quadrature table plane are compared, the productivity of round table is some more tallish, because round table is successive feed,this is, and quadrature table has reversal time loss. But, round table is only comfortable the end panel of annular spare parts at grinding small part and big diameter, cannot grinding grows a spare parts. And quadrature table but conveniently grinding all sorts of commonly used spare partses, include a diameter to be less than the annular spare parts of quadrature stage width. Current, those who use morer is to lie grinder of plane of axial quadrature table and grinder of plane of round table of vertical scroll of painting or calligraphy. Normal >2. Lie Normal > lies grinder of plane of axial quadrature stage is shown 2 times like the graph. The grinding spindle of this kind of machine tool is normally by inside drive even type asynchronous electromotor directly. Often electric machinery axis is main shaft, dynamoelectric stator is installed the body carapace of 3 is worn in emery wheel inside. Emery wheel is worn 3 but the transverse feed that along slide carriage the swallow end slideway of 4 makes intermittence moves (the hand is moved or fluid moves) . Slide carriage 4 wear one case 3 with emery wheel, the upend that along pillar the slideway of 5 makes intermittence cuts motion (the hand moves) . Workbench the slideway of 1 makes 2 edges lathe bed fore-and-aft reciprocate (fluid drive) . Normal Align=center> pursues 2 lie Normal Align=center>1, lathe bed 2, workbench 3, emery wheel wears 4, slide carriage 5, pillar Normal > lie the treatment mass that grinder of plane of axial quadrature stage can reach is: Normal > common precision: After test specimen essence is ground, the parallelism that treatment faces tool reference plane is 0. 015mm ／ 1000mm, ra=0 of exterior surface roughness.
32 ～ 0.
63um; Normal > high accuracy class: After test specimen essence is ground, the parallelism that treatment faces tool reference plane is 0.
005mm ／ 1000mm, ra=0 of exterior surface roughness.
04~0.
01um. Normal >3. Normal > vertical scroll of painting or calligraphy pursues 3 are shown. Emery wheel wears the main shaft of 1 also is by inside electromotor of the asynchronous that connect form is direct drive. Emery wheel is worn 1 but edge pillar the slideway of 2, the upend that makes intermittence cuts motion. Circular table 4 rotate circumferential feed moves. Assemble and unassemble to facilitate workpiece, circular table 4 still can slideway of edge lathe bed is fore-and-aft and mobile. Because emery wheel diameter is big, often use so set an emery wheel. This kind of emery wheel makes cold fluid easy and irruptive cutting makes emery wheel jams not easily. Productivity of this kind of machine tool is tall, apply to produce group by group. Normal Align=center> pursues Normal Align=center>1, emery wheel is worn 2, pillar 3, base 4, workbench 5, lathe bed CNC Milling
CNC Machining