JPH0663257U - Machining center Cutting oil spray pipe - Google Patents

Abstract

(57) [Abstract] [Purpose] A tool that sprays cutting oil without depleting it on the main part of the machining center that displaces cutting oil in response to blade changes. [Structure] A hollow tube is arranged in a plane perpendicular to the cutting tool mounting spindle, and the holes or holes are staggered for the length corresponding to the longest length of the cutting tool, and cutting oil is not interrupted at the cutting point. Corresponds to the replacement of the cutting tool by spraying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a method of spraying cutting oil for maintaining the life of a cutting tool.

[0002]

[Prior art]

 Generally, it is natural to spray cutting oil on a cutting tool that rotates at 2,500 to 6,000 rpm, but the method is to enlarge the vicinity of the rotating main spindle 2 of the machining center 1 shown in FIG. In the case of the conventional machining center shown in FIG. 2, the tips 4 of the flexible pipes 3, 3, 3 near the rotary spindle 2 are provided at the bases of the flexible pipes 3, 3, 3 on the processed portion 6 of the workpiece 5. It is customary to aim and spread the distance with the valve 7 and also in the direction of the flexible pipes 3, 3, 3.

However, in the machining center 1, the shape and the depth are different depending on the processed portion, and the length of the cutting tool 8 is exchanged with 100 to 320 mm. Not aiming), aiming roughly and spreading the spray over a wide area. However, due to the nature of the machine, when the number of workpieces to be processed 5 is large, the cutting tools are often replaced with about 20 times, and it is troublesome to adjust the flexible pipes 3, 3 each time, and sometimes the cutting is performed. The hydraulic fluid pressure may cause the curvatures of the flexible pipes 3, 3 and 3 to change. As a result, the work piece 6 may run out of oil and the cutting tool may be damaged. It became an upper problem.

[0004]

[Problems to be solved by the device]

 Therefore, in order to solve it, it is necessary to extend the entire length of the cutting blade from the longest cutting tool tip to the shortest effective cutting tool rear end so as to correspond to the displacement of the work piece 6 for any replacement cutting tool in the tool magazine (9 in Fig. 1). It is to maintain the life and quality of the cutting tool so that the cutting oil will not be sprinkled sufficiently and the cutting oil will not be sufficiently run out.

[0005]

[Means for Solving the Problems]

 To this end, match the longest distance from the rotary spindle 2 of the cutting tool that is expected to be replaced, and the shank part (Fig. 3) of the work piece (shown in Fig. 3) or the replacement cutting tool when the cutting tool is replaced. 16) of the machining center, arrange a cutting oil distribution pipe in a plane substantially perpendicular to the rotating spindle 2 of the machining center, and the dispersion pipe extends in the longitudinal direction on the surface facing the axis of the rotating spindle 2. A hole or a long hole is provided in zigzag.

[0006]

[Action]

 By doing so, the tool magazine (9 in Fig. 1) in which the cutting tool group is stored is expected to be replaced with the longest effective cutting edge from the tip of the rotary spindle 2 of the cutting tool to the shortest effective cutting edge. Even if the position of the portion to be processed 6 has changed recently, cutting oil is sprayed during cutting, and the cooling and lubrication necessary for cutting are fulfilled.

[0007]

【Example】

 Now, the present invention will be described with reference to FIGS. FIG. 3 is a side view of the cutting oil spray pipe 12 fixed to the main spindle 10 of the main body 10 of the machining center 1 through the bracket 11 via the bracket 11. Then, cutting oil is pressure-fed from the pipe 13 to the cutting oil spray pipe 12, and the oil liquid 14 is sprayed on the blade 8. The cutting tool 8 has a shank portion 15 and is held by the main shaft portion 2. Reference numeral 16 represents a shank that passes when the cutting tool is replaced. FIG. 4 is a view of FIG. 3 viewed from different angles. The circle 17 is the locus of the center of the shank of the blade when the blade is exchanged by the blade exchange tool 18. FIG. 5 is a view A of FIG. 3, in which a plurality of long holes 19 are provided in a zigzag pattern over the entire length of the lower surface of the cutting oil spray pipe 12. FIG. 6 is a sectional view taken along line BB of FIG. FIG. 7 shows a modification of the present invention, in which holes 21 are staggered over the entire length of the lower surface of the pipe 20 fixed in parallel so as to aim at the axis of the main shaft portion 2. FIG. 8 is a sectional view taken along line CC of FIG. 7.

The operation will now be described with reference to the drawings. As shown in FIG. 3, through the cutting oil spray pipe 12 installed and fixed on the work part 6 at an angle of about 60 degrees in a plane substantially perpendicular to the axis of the main shaft portion 2, the cutting oil spray pipe 12 shown in FIG. From the long hole 19, cutting oil diluted 20 times with Neocool S30V (trade name) pumped from the pipe 13 is jetted and sprayed. Then, in order to make the jet pressures almost equal, the cross section of the cutting oil spray pipe 12 becomes smaller toward the tip as shown in FIG. 6 and the static pressure is lowered so that the tip is far away, and the long holes 19 are substantially parallel. Due to the staggered holes, the cutting oil 14 is not interrupted and is uniformly sprayed over the entire length of the blade 8 regardless of its length. Further, in the case of a short cutting tool, the work piece 5a comes close to the main body 10 and is covered with the cutting oil liquid 14, but the cutting oil liquid 14 is collected by the pan (22 in FIG. 1) at the bottom of the machine. That is not a problem because it is done.

Therefore, even if a blade having a length different from about half of that of the longest blade is set on the chuck portion 15 of the main spindle portion 2 by exchanging the blade, the different workpiece 6a of the workpiece 5a will be processed. However, the sprayed oil liquid 14 is always well distributed and does not hinder the cooling and lubrication of the cutting tool, and the fine adjustment of the spraying pipe when exchanging the cutting tool can be omitted. Furthermore, as shown in FIGS. 7 and 8, as a modified example, the pipes are arranged in a staggered manner over the holes such as the holes or the long holes 21 of the cutting oil spray pipe 20 in which the pipes are joined in parallel, and the cutting oil spray oil In order to make the oil liquid 14 uniform over the entire length of the cutting tool, the opening area of the hole is gradually reduced toward the tip (equal in the figure). In addition, the sprayed oil liquid 14 is always well distributed and does not hinder the cooling and lubrication of the cutting tool, and the fine adjustment of the spraying pipe when exchanging the cutting tool can be omitted.

[0010]

[Effect of device]

 In this way, since the cutting oil spray pipe of the flexible tube was devised as described above, it is not necessary to adjust and aim the oil liquid every time the cutting tool is changed in spraying the cutting oil in the machining center, and the misadjustment is eliminated. Since it does not damage the cutting tool or shorten the life of the tool, it is very beneficial.

[Brief description of drawings]

FIG. 1 is a front view of a machining center.

FIG. 2 is an enlarged side view of a main shaft portion of the machining center shown in FIG.

FIG. 3 is a side view of the cutting oil spray pipe of the present invention mounted near the main shaft portion.

FIG. 4 is a front view of FIG. 3 viewed from the main axis direction.

5 is an A view of FIG.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a cutting oil spray pipe diagram of a modified example.

8 is a sectional view taken along line CC of FIG.

[Explanation of Codes] 1 Machining Center 2 Main Shaft Part 3 Flexible Tube 4 Jet Port 5, 5a Workpiece 6, 6a Workpiece Part 7 Valve 8 Cutting Tool 9 Tool Magazine 10 Machining Center Body 11 Bracket 12 Cutting Oil Dispersion Pipe 13 Piping 14 Cutting Oil Oil liquid 15 Shank part 16 Shank 17 Replacement cutting tool shank locus 18 Cutting tool replacement jig 19 Long hole 20 Pipe 21 Hole 22 Saucepan

Claims (2)

[Scope of utility model registration request] 1. A tool for spraying cutting oil to a rotating cutting tool of a machining center, which is adapted to constantly rotate a main spindle shaft core corresponding to the longest and shortest lengths of a cutting tool group from the tip of the main shaft of the machining center to the tip of the cutting tool. Characteristically, holes or long holes for jetting cutting oil are arranged in a staggered manner in a hollow pipe arranged in a substantially vertical plane, and the cutting oil is continuously sprayed from the farthest cutting edge to the cutting edge of the above cutting tool group. And cutting oil sprinkler. 2. The cutting oil spraying device according to claim 1, wherein the hollow pipes are connected in parallel, and holes or long holes through which cutting oil is ejected are arranged in a staggered manner over both pipes.