TWI642503B - Discarding trimming and chamfering tools - Google Patents

Abstract

The discarding and chamfering tool of the present invention comprises a arbor, the arbor of which is provided with a set of rods, wherein the arranging rod is inserted into a patrol guide wheel and a discarded milling cutter, wherein The end face of the sleeve rod is provided with an inner screw hole and is locked by a bolt. The patrol guide wheel of the invention can be rolled against the casting or the workpiece, so that the discarded milling cutter will be attached to the casting or the contour of the workpiece. The parting line is used for burr milling. When the casting is not linear, the discarding and chamfering tools can be clamped by the robot arm or the floating milling cutter, and can be laterally fine-tuned (about 0.5~1mm). Elastic yaw) corrects the error between the path of the program and the shape of the casting, which in turn allows the discarding cutter to precisely mill the burrs against the parting line.

Description

Discarding trimming and chamfering tools

The invention relates to a structural improvement of a milling cutter, in particular to a discarding trimming and chamfering tool for milling a burr or a chamfer of a non-linear casting joint line.

Generally, workpieces formed by stamping, die-casting, or casting may have partial material overflow at the joint surface of the forming mold due to excessive high pressure, mold wear, excessive temperature, or poor mold clamping. The cavity is left with burrs on both sides of the workpiece, causing defects. Some minor defects are tolerable. If the burrs are abnormally thickened and become intolerable defects, they need to be processed and removed. The common processing method is manual use. Grinding or grinding of grinders to remove burrs, noise and dust generated by grinding or sandblasting make the working environment worse. Operators must wear dustproof equipment, and the working environment must also use air purification equipment. The equipment cost is relatively high. Grinding of grinding wheels is also potentially dangerous. The flaking of the grinding wheel particles or the burrs of the burrs are caused by grinding and cracking and high-speed flying, which is very easy to hurt the operators or others. Such high-risk work is not only high salary but also unwilling. In this work, the production and quality of grinding or sand blasting by artificial means is not stable, so Some manufacturers is based robot operation instead of doing so, in order to solve the problem of manpower shortage, the number of production and quality stability.

However, the initial investment of robotic equipment is very expensive. If it is not mass production or economic benefits of investment, and then use robots instead of manpower for grinding or sandblasting, the harsh working environment has not been improved, and environmental pollution has not been reduced. Just solution The problem of insufficient labor is not solved at all for small quantities of goods, but it is also removed by conventional manual grinding or sand blasting.

The removal of the burrs of conventional castings relies on manual use of grinding or sand blasting, resulting in a harsh working environment, unstable quality and output, flaking of the grinding wheel particles during work or chipping at the end of the burrs and high-speed flying, which is easy to injure and operate. Personnel, work with such high risk and high risk to health has been gradually reduced and willing to be low, and the turnover rate of personnel is high. The alternative to robots can only be suitable for mass production of workpieces. At best, it only solves the problem of labor shortage and environmental pollution. Nor has it been reduced or improved.

The discarding and chamfering tool of the present invention comprises a arbor, the arbor of which is provided with a set of rods, wherein the arranging rod is inserted into a patrol guide wheel and a discarded milling cutter, wherein The end of the sleeve rod is provided with an inner screw hole and is locked by a bolt.

The patrol guide wheel of the present invention can be rolled against the casting or the workpiece, so that the discarded milling cutter will perform burr milling on the parting line of the casting or the contour of the workpiece, and when the casting is not straight, The discarding and chamfering tool can be clamped by a robot arm or a floating milling cutter, and can be laterally fine-tuned (about 0.5~1 mm elastic yaw) to correct the error between the program path and the shape of the casting, thereby making The discarding cutter precisely mills the burrs against the parting line.

1‧‧‧Disposable trimming and chamfering tools

11‧‧‧Cutter

12‧‧‧Setting rod

121‧‧‧Inner hole

13‧‧‧Road guide wheel

14‧‧‧Disposable milling cutter

141‧‧‧Positioning holes

142‧‧‧Nuts hole

143‧‧‧Perforation

15‧‧‧ bolt

20‧‧‧ bushing

30‧‧‧ castings

31‧‧‧Mamma

32‧‧‧Dividing line

P1‧‧‧ guided path

P2‧‧‧ cutting path

Figure 1 is a perspective view of the system of the present invention.

Figure 2 is a sectional view of the combination of the present invention

Figure 3 is a cross-sectional view of the combination of the chamfering embodiments of the present invention

Figure 4 is a diagram showing an embodiment of the reverse assembly of the patrol guide wheel and the discarded milling cutter of the present invention.

Figure 5 is a schematic view of the bushing of the patrol guide wheel of the present invention.

Figure 6 is another schematic view of the bushing guide bushing of the present invention.

Figure 7 is a schematic view of the edging of the milled casting of the present invention

Figure 8 is an enlarged schematic view of Fig. 7 of the present invention

Figure 9 is a schematic view of a curved profile casting of the present invention

Figure 10 is a schematic view of the guiding path of the present invention

Figure 11 is a schematic view showing the cutting path of the disposable milling cutter of the present invention.

Figure 12 is a schematic view of the chamfering process of the present invention

The discarding and chamfering tool 1 of the present invention, as shown in Figures 1 and 2, includes a cutter bar 11 having a set of rods 12 at the front end thereof, and the sleeve rod 12 is placed A patrol guide wheel 13 and a discarded milling cutter 14 are disposed on the end surface of the sleeve rod 12 and are locked by a bolt 15.

One end of the discarding cutter 14 is provided with a positioning hole 141 which is sleeved in the sleeve rod 12 at the front end of the cutter rod 11, and the other end of the discarding cutter 14 is provided with a nut hole. 142, the bolt 15 is inserted. In the embodiment, the discarding cutter 14 is a side cutter. Referring to FIG. 3, the discarding cutter 14 is also provided as a chamfering cutter, and can be implemented. For the chamfering process, as shown in FIG. 4, the assembly positions of the patrol guide wheel 13 and the retractable milling cutter 14 are mutually replaced, and the inner hole of the discarded milling cutter 14 is set as a perforation 143. The sleeve is placed in the uppermost layer, and the bolt 15 for locking is constructed using a non-head screw, and the bolt 15 having a brim is used to lock the patrol guide wheel 13.

The patrol guide wheel 13 can be set as a bearing or as a ring-shaped rim, so as to lean against the casting or the workpiece to roll, so that the discarded milling cutter 14 will be along the casting or the workpiece. The contour is milled. In addition, the outer peripheral surface of the patrol guide wheel 13 can be sleeved with bushings 20 of different thicknesses. As shown in FIGS. 5 and 6, the lining guide wheel 13 can be sleeved with different thicknesses of the bushing 20 to be discarded. The gap between the milling cutter 14 and the casting 30 is suitable for different castings or workpieces.

Referring to Figures 7 and 8, the present invention is applied to an embodiment of burr milling. The casting 30 has burrs 31 at the parting line 32. When the present invention is near the casting 30, the patrol guide 13 is used. Abutting the casting 30, the cutting surface of the discarded milling cutter 14 is subjected to burr 31 milling against the parting line 32. As shown in Fig. 9, when the casting 30 is shaped as a non-linear line, such as a curve, the discarded trimming The chamfering tool 12 can be clamped by a robot arm or a floating milling cutter, and can be laterally fine-tuned (about 0.5~1 mm elastic yaw), and the processing path set by the processing machine and the actual shape of the actual casting 30 are inevitable. In some minor errors, the patrol guide wheel 13 abuts against the outer curve of the casting 30 and is laterally fine-tuned to produce a precise guiding path P1 (as shown in FIG. 10), so that the cutting surface of the discarded milling cutter 14 The burr 31 is milled against the parting line 32, so that the cutting path P2 (shown in Fig. 11) performed by the disposable milling cutter 14 will be carried out along the guiding path P2 to precisely remove the burrs 31.

Referring to Figures 5, 6 and 10, the castings 30 of different curvatures must be fitted with the bushings 20 of different thicknesses into the edge-trimming guides 13, thereby changing the gap between the discarded milling cutters 14 and the castings 30, thereby avoiding the occurrence of The phenomenon of cutting can be applied to castings 30 or workpieces of different curvatures.

Referring to Figures 3 and 12, the disposable milling cutter 14 is an embodiment of a chamfering cutter, which performs a chamfering operation, especially when a curved outer shape is used, with a side trimming function, even if the workpiece When the curve is slightly different from the curve path of the machine tool programming, this The cutting path of the invention can still accurately perform the chamfering operation of the workpiece to the same width without causing overcutting or intermittent cutting.

In summary, the present invention replaces the grinding by milling to reduce environmental pollution, whether it is suitable for a large amount or a small amount of production, and the patrol guide wheel can be rolled against the casting or the workpiece, so that the discarded milling cutter will be attached. The casting line or the parting line of the contour of the workpiece is used for rough milling, which is practical and innovative.

Claims (3)

A discarding trimming and chamfering tool comprises a cutter rod, a set of rods is arranged at a front end of the cutter rod, and the sleeve rod is inserted into a patrol guide wheel and a discarded cutter, and the sleeve is placed The rod end face is provided with an inner screw hole and is locked by a bolt. The discarding trimming and chamfering cutter according to claim 1, wherein one end of the discarding cutter is provided with a positioning hole, and the positioning hole is sleeved to the sleeve rod at the front end of the cutter rod, The other end of the discarding cutter is provided with a nut hole for the bolt inserter. The discarding trimming and chamfering cutter according to claim 1, wherein the inner hole of the discarded milling cutter is set as a perforation, and is sleeved into the uppermost layer of the sleeve rod to have a bolt with a brim edge. Lock the patrol guide wheel.