JPH04115511U - machine tool turret - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a waterproof structure that allows the turret to rotate at high speed without any hindrance. [Structure] A turret 6 is supported on the tool rest main body 1 and driven via a rotation shaft 2 by a rotation motor 5. A positioning coupling 7 is interposed between the tool rest main body 1 and the turret 6. The turret 6 is clamped and unclamped to the tool post body 1 by the clamp cylinder 8. Turret body 1
Labyrinth portions 13 and 14 having a multilayer structure are provided at opposing portions of the turret 6 and the turret 6. A narrow gap 15 that is bent in multiple stages is formed between each labyrinth part 13 and 14. Cutting water from the outside is deenergized by the slit 15 and discharged outside the machine by the centrifugal force generated by the rotation of the turret 6, thereby preventing it from entering the inside of the tool rest. Since the turret 6 is rotated without contacting the turret main body 1, no frictional resistance is generated, and the labyrinth part 1
3 and 14 are also prevented.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was developed to protect machine tool turrets, especially those in which the turret rotates at high speed. It concerns the structure of water.

0002

[Conventional technology]

As a conventional waterproof structure for a tool post, for example, the technique shown in FIG. 3 is known. figure , 21 is a tool rest main body, and 22 is a turret on which multiple tools (not shown) are attached. , 23 is a pivot shaft for rotating the turret 22. Turret 22 of the tool rest main body 21 A contact seal 24 such as an O-ring or a dust seal is attached to the side. Matatare sauce A seal wall 25 is provided on the cut 22 so as to surround the contact type seal 24. There is. Then, the contact type seal 24 and the seal wall 25 connect the tool rest main body 21 to the sag. The gap with the cutter 22 is sealed to prevent cutting water from entering inside the turret. It has become.

0003

[Problem that the idea aims to solve]

However, according to the conventional waterproof structure, the frictional resistance and wear of the contact seal 24 are low. There is a problem in that the wear becomes an obstacle to high-speed rotation of the turret 22.

0004 Therefore, the challenge with this idea was to provide a waterproof structure that would allow the turret to rotate at high speed without any hindrance. Our goal is to provide machine tool turrets with improved quality.

[0005]

[Means to solve the problem]

In order to solve the above problem, the tool post of this invention has a turret on the main body of the tool post. It is supported in a rotatable manner and has a multi-layered structure on the part where the tool rest body and the turret face each other. Each labyrinth part is provided with a rinsing part, and a slit that bends in multiple stages is formed between each labyrinth part. configured.

[0006]

[Effect]

In the turret of this invention, cutting water that tries to enter from the outside becomes a labyrinth. The energy is dissipated by the multi-stage slits formed between the parts, and the centrifugal force generated by the rotation of the turret activates the machine. It is discharged to the outside and is prevented from entering the inside of the tool post. In addition, the turret Since the turret is rotated without contacting the turret body, no frictional resistance is generated and the turret is Abrasion of the billinth part is also prevented, and as a result, the turret can be rotated at high speed without any trouble. I can do it.

[0007]

【Example】

Hereinafter, embodiments embodying this invention will be described based on the drawings. Figure 1 shows the present invention 2 is a cross-sectional view showing a turret according to an embodiment of the present invention, and FIG. 2 is a portion of FIG. 1 showing the waterproof structure in detail. It is an enlarged sectional view. As shown in FIG. One end of the pivot shaft 2 is connected to a pivot motor 5 via a gear 4. connected. At the other end of the rotation axis 2 is a turret on which multiple tools (not shown) are attached. 6 are connected to each other and rotated at high speed via the rotation shaft 2 by the rotation motor 5. Ta The turret 6 is positioned between the turret 6 and the tool rest main body 1 when indexing the tool. A coupling 7 is interposed therebetween. A clamp cylinder 8 is attached to the pivot shaft 2. It is fixed by the cutter 9 and selectively applies hydraulic pressure to the two hydraulic pipes 10 of the turret main body 1. The turret 6 can be clamped or unclamped to the tool rest main body 1 by is configured so that it can be accessed.

[0008] A sealing member 12 is joined to the surface of the tool rest main body 1 facing the turret 6, and the sealing member 12 is The rail member 12 is provided with a main body side labyrinth portion 13. Also, turret 6 A turret-side labyrinth portion 14 is disposed on the surface facing the tool rest main body 1. It is provided so as to mesh with the rinse part 13. Then, as shown in Figure 2, this A narrow gap 15 is formed between these labyrinth parts 13 and 14, which bends in multiple stages. Ru. Each of the labyrinth parts 13 and 14 has a plurality of protrusions 16 extending in the axial direction. It has a multi-layered structure, and a drainage groove 17 is carved on the outer peripheral surface of each protrusion 16. A V-groove 18 is carved on the inner circumferential surface of each protrusion 16 to allow water droplets running there to fall into the drainage groove 17. It is set up.

[0009] Therefore, in the tool post of this embodiment configured as described above, The cutting water that has entered is removed by the multi-stage slits 15 formed between the labyrinth parts 13 and 14. It is deenergized, received by the drain groove 17, and discharged outside the machine by the centrifugal force caused by the rotation of the turret 6, and the blade is removed. It can prevent intrusion into the inside of the table. In addition, the turret 6 is connected to the tool rest main body through the slit 15. Unlike conventional contact type seals, frictional resistance is reduced because the seals are rotated without contact. This also prevents the labyrinth parts 13 and 14 from being worn out, and as a result, dripping is prevented. The kit 6 can be turned at high speed without any trouble.

0010 Note that this invention is not limited to the above embodiments; for example, each labyrinth The number of protrusions 16 on the space parts 13 and 14 can be changed, or the bent shape of the slit 15 can be changed. Alternatively, the idea of the present invention can be applied, such as applying the waterproof structure of the above embodiment to a work table. The shape and configuration of each part may be changed as appropriate without departing from the spirit of the invention. It is possible.

[0011]

[Effect of the idea]

As detailed above, this invention prevents cutting water from entering from the outside. is deenergized by the multi-stage slits formed between the labyrinth, preventing it from entering the inside of the tool post. In addition, the turret can be rotated without contacting the turret body to reduce frictional resistance. This eliminates friction and prevents wear on the labyrinth part, allowing the turret to operate at high speeds without any problems. It has the excellent effect of being able to turn.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a tool rest according to an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of FIG. 1 showing the waterproof structure in detail.

FIG. 3 is a cutaway side view of a main part showing a conventional tool rest.

[Explanation of symbols]

1. Turret body, 2. Swivel axis, 3. Bearing, 4.
Gear, 5... Rotating motor, 6... Turret, 7... Coupling, 8... Clamp cylinder, 9... Nut,
10... Hydraulic piping, 12... Seal member, 13... Body side labyrinth part, 14... Turret side labyrinth part, 1
5...Slit, 16...Protrusion, 17...Water groove, 18...
V groove.

Claims (1)

[Scope of utility model registration request] 1. A turret is rotatably supported on a tool rest main body, and labyrinth portions each having a multilayer structure are provided at opposing portions of the tool rest main body and the turret, and between each labyrinth portion there is provided a turret that is bent in multiple stages. A machine tool turret characterized by having a gap formed therein.