JP3214808U - Power supply device - Google Patents

Abstract

Provided is a power supply device that has a high connection strength to a machine tool, has less unnecessary vibration during processing, and can stably supply a suitable power source to various types of tools. A power supply device (1) that is attached to a machine tool (50) having a rotary magazine (53) and supplies a power source to a tool (57), a rotary joint (10) attached near the rotation center of the magazine (53), and a rotary The first tube 12 connected to the joint 10 and the second tube 14 having one end connected to the rotary joint 10 and the other end connected to the tool 57, the rotary joint 10 being a magazine by a flange portion. It is fixed to the outer periphery of the magazine 53 by the arm 16 that extends from the flange to the outer periphery of the magazine 53. Thereby, the connection strength to the machine tool 50 is increased, and the power source can be supplied to the tool 57 in a stable state. [Selection] Figure 1

Description

  The present invention relates to a power supply device that is attached to a machine tool and can supply fluid, electricity, light, and the like to a tool of the machine tool.

  A machine tool such as a machining center has a magazine to which a plurality of tools can be attached, and an apparatus that can process a workpiece in various forms by selecting and using a necessary tool from the tools attached to the magazine. It is. 2. Description of the Related Art Conventionally, an apparatus that is attached to a machine tool magazine such as a machining center and supplies fluid, electricity, light, or the like to a tool used for processing via a tube or the like is known.

  For example, Patent Document 1 discloses a device that supplies and receives a plurality of fluids such as air, water, and oil, which are power sources, electricity, light, or the like, to a tool of a machine tool. The apparatus of this document has a rotary joint fixed via a flange in the vicinity of the rotation center of a magazine fixing a tool holder or the like. The rotary joint is connected to a connecting tube and an electric cable connected to an open / close adjuster and a distribution device, and to a supply pipe connected to a tool holder. Accordingly, a necessary power source can be supplied from a connecting tube or the like to a tool attached to the machine tool via a flow path passing through a rotary joint, a supply pipe, or the like.

Utility Model Registration No. 3180234

  However, in the power supply apparatus in which the rotary joint is attached in the vicinity of the rotation center of the magazine as in the prior art described above, there is room for improvement in order to increase the connection strength and stability to the machine tool such as the rotary joint. It was.

  Specifically, a load is easily applied to the rotary joint or a flange serving as a connecting portion thereof due to a load due to the weight of the rotary joint, a tube, or the like, or a load on the rotary joint due to rotation of a magazine or a processing operation with a tool. For this reason, the rotary joint, flange, tube, and the like have a problem in that unnecessary vibration and deformation due to a load easily occur and become unstable.

  Moreover, since the rotary joint or the like is unstable, the tools that can be attached are limited, and it is difficult to attach a tool having a large size or load, such as an ultrasonic vibrator. In particular, when a large and heavy load tool is connected, unnecessary vibration of the rotary joint or the like increases, and problems such as the rotary joint or the like being detached from the machine tool may occur.

  The present invention has been made in view of the above circumstances, and its purpose is to have high connection strength to machine tools, less unnecessary vibration during processing, etc. An object of the present invention is to provide a power supply device capable of stably supplying a suitable power source.

  A power supply apparatus according to the present invention is a power supply apparatus that is attached to a machine tool including a rotary magazine to which a plurality of tools can be attached, and that can supply a power source to the tool, in the vicinity of the rotation center of the magazine. A rotary joint to be attached; a first tube connected to the rotary joint to supply the power source to the rotary joint; one end connected to the rotary joint and the other end connected to the tool to A second tube that supplies the tool to the tool from the rotary joint, and the rotary joint is fixed to the magazine by a flange portion and extends from the flange portion in the outer peripheral direction of the magazine. It is characterized by being fixed to the outer peripheral part vicinity of the said magazine.

  According to the power supply device of the present invention, the power supply device can be attached to a machine tool having a rotary magazine to which a plurality of tools can be attached, the rotary joint being attached in the vicinity of the rotation center of the magazine, and the rotary joint. A first tube connected to supply the power source to the rotary joint, and a second tube connected at one end to the rotary joint and connected to the tool at the other end to supply the power source from the rotary joint to the tool. The rotary joint is fixed to the magazine by the flange portion, and is fixed to the vicinity of the outer peripheral portion of the magazine by an arm portion extending from the flange portion in the outer peripheral direction of the magazine. Thereby, the mounting strength of the rotary joint can be increased by the arm portion fixed to the magazine, and the stability of the rotary joint, the flange portion, the second tube, etc. can be increased to suppress vibration. In addition, since the rotary joint or the like is difficult to come off, it is possible to increase the size of the tool, increase the processing speed, shorten the tool change time, and increase the processing efficiency of the machine tool.

  Further, according to the power supply device of the present invention, the magazine is provided in the vicinity of the outer periphery of the magazine, the tool mounting member for storing the tool, and the cover that covers the tool mounting member and extends to the vicinity of the rotation center of the magazine. The rotary joint may be fixed to the cover member via the flange portion and may be fixed to the cover member and the tool mounting member via the arm portion. As a result, even for machine tools in which the rotation center of the magazine is formed by a resin cover member, etc., the power supply device of the present invention can be mounted in a stable state with little fluctuation of the rotary joint, etc. The speed can be increased.

  Further, the arm portion may be fixed to the magazine by being fastened together with an existing fixture formed to fix the cover member of the machine tool to the tool mounting member. Thereby, it is not necessary to newly form a screw hole or the like for fixing the arm portion in the magazine, and the power supply device can be easily attached.

  Further, according to the power supply device of the present invention, the power supply device may include a protective rail having one end fixed to the flange portion and the other end fixed to the tool, and the second tube may be inserted into the protective rail. . Thereby, the joint strength between the tool used in the machine tool and the rotary joint is increased by the protective rail, and vibrations of the second tube, the tool, and the like are suppressed. In addition, since the tool is stably supported, the tool exchange performance and machining performance of the machine tool can be improved.

  Moreover, according to the power supply device of the present invention, the second tube may be connected to an ultrasonic vibrator serving as a tool. Thereby, automatic replacement of the ultrasonic vibrator in the machine tool is facilitated, and the performance of the machine tool can be improved.

It is a perspective view showing the state where the power supply device concerning the embodiment of the present invention is attached to the machine tool. It is the (A) top view of the magazine to which the power supply device concerning the embodiment of the present invention is attached, and (B) the front view.

Hereinafter, a power supply device according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a state in which a power supply device 1 according to an embodiment of the present invention is attached to a machine tool 50, and schematically shows the power supply device 1 and the machine tool 50. The power supply device 1 is a device that supplies a power source such as fluid, electricity, and light to a plurality of tools 57 provided in the machine tool 50.

  As shown in FIG. 1, the machine tool 50 to which the power supply apparatus 1 is attached is, for example, a small three-axis machining center. The machine tool 50 is mounted with a magazine 53 to which a plurality of tools 56 and 57 are attached, a spindle 51 on which the tools 56 and 57 selected from the magazine 53 are attached, and a workpiece W to be processed. Table 52.

  The main shaft 51 has, for example, a motor (not shown) and the like, and the tools 56 and 57 fixed to the main shaft 51 can be rotated by the motor or the like. Thereby, the tools 56 and 57 can perform the cutting process etc. of the workpiece | work W. FIG. The main shaft 51 is provided so as to be movable in the vertical direction.

  The table 52 includes, for example, a chuck device (not shown), and the workpiece W can be fixed to the upper surface of the table 52 by the chuck device or the like. The table 52 is provided so as to be movable in the horizontal direction.

  The magazine 53 is a rotary device formed in a substantially disk shape for storing a plurality of tools 56 and 57, a tool mounting member 54 to which the plurality of tools 56 and 57 are mounted, and a cover member that covers the tool mounting member 54. 55.

  The magazine 53 is connected to an automatic tool changer composed of a control device, a motor, etc. (not shown), and is rotated in the left-right direction by the automatic tool changer. Further, the lower portion of the magazine 53 can be moved in the front-rear direction by the automatic tool changer.

  Next, a method for changing the tools 56 and 57 attached to the main shaft 51 will be described. First, the tools 56 and 57 attached to the main shaft 51 are removed. Specifically, by moving the lower portion of the magazine 53 rearward by an automatic tool changer, the tools 56 and 57 attached to the main shaft 51 are sandwiched and stored in the tool attachment member 54 of the magazine 53. Then, the tools 56 and 57 are removed from the main shaft 51 by moving the lower portion of the magazine 53 forward.

  Next, the automatic tool changer rotates the magazine 53 so that the tools 56 and 57 newly attached to the main shaft 51 are positioned below. Then, new tools 56 and 57 are attached to the main shaft 51 by the reverse procedure of removing the tools 56 and 57 from the main shaft 51. The tools 56 and 57 are exchanged by the above operation.

  The power supply device 1 is a device that supplies a power source to a tool 57 attached to the machine tool 50. Specifically, the power supply device 1 includes a rotary joint 10 fixed to the magazine 53, a first tube 12 that supplies a power source to the rotary joint 10, and a second that supplies a power source from the rotary joint 10 to the tool 57. Tube 14.

  The rotary joint 10 is a member for supplying the power source supplied from the first tube 12 to the second tube 14, and is attached near the rotation center of the magazine 53.

  The first tube 12 and the second tube 14 are, for example, flexible tubes, hoses, pipes, wirings, etc., for example, air hoses that supply air, tubes that supply liquids such as water and oil, An electric cable, a cable for communication such as optical communication, and the like.

  The first tube 12 is housed inside the cover pipe 13 by bundling a plurality of tubes, wires, and the like. The cover pipe 13 is formed by, for example, a coil hose or an expansion cylinder. Thereby, the 1st tube 12 can be protected from foreign materials, such as cutting waste.

To the first tube 12 or the cover pipe 13, a power source generator 20, a distribution device 21, an opening / closing regulator 22, and the like may be connected.
The power source generator 20 is a device for sending the power source to the tool 57, for example, a compressor that blows air, a hydraulic device that supplies liquid, etc., electrical equipment for sending electricity, the tool 57 and optical communication, etc. A communication device or the like. As a result, a power source such as air, liquid, electricity, or light can be supplied to the tool 57. Therefore, for example, various types of tools such as an air nozzle, an air chuck, an electric driver, an inspection tool, a high-speed spindle, and an ultrasonic vibrator can be used as the tool 57.

The distribution device 21 is a device for distributing the power source supplied from the power source generator 20 to an arbitrary tool 57.
The open / close adjuster 22 is a device for adjusting the amount of the power source supplied from the power source generator 20.

  The power source generator 20, the distribution device 21, and the opening / closing regulator 22 are connected to a control device (not shown). For example, the control device controls the machine tool 50, the power source generation device 20, the distribution device 21, and the open / close adjuster 22 based on the state and input of the tool 57 obtained by the communication device. Thereby, the power source supplied to the tool 57 can be adjusted suitably.

  Further, the power source generator 20, the distribution device 21, the opening / closing regulator 22, and the tool 57 are connected by the first tube 12 and the second tube 14. Thereby, for example, problems such as communication failure in wireless communication and contact failure in contact with contacts can be prevented, and the accuracy of the machine tool 50 can be improved.

  FIG. 2A is a plan view of the magazine 53 to which the power supply device 1 is attached, and is a view of the surface of the magazine 53 to which the rotary joint 10 is attached. FIG. 2B is a front view of the magazine 53 to which the power supply device 1 is attached, and is a view of the outer periphery of the magazine 53 and the like viewed from a direction perpendicular to the rotation axis of the magazine 53.

  As shown in FIG. 2B, the magazine 53 includes a tool mounting member 54 provided in the vicinity of the outer periphery of the magazine 53, and a cover member 55 extending from the vicinity of the outer periphery of the magazine 53 to the vicinity of the rotation center. Have.

  The tool attachment member 54 is a member in which the tools 56 and 57 are accommodated. The tool attachment member 54 is formed, for example, in a substantially hollow disk shape using metal or the like as a material, and tool attachment portions in which the tools 56 and 57 are accommodated are formed at substantially equal intervals on the outer periphery of the tool attachment member 54. Yes.

  The cover member 55 is formed, for example, in a substantially disk shape using a synthetic resin or the like as a material, and is fixed to the tool attachment member 54 by the fixtures 17 and 18 so as to cover the tool attachment member 54. By providing the cover member 55, it is possible to prevent the tool mounting member 54 from being soiled by cutting waste or the like. The fixtures 17 and 18 are, for example, screws or the like, the fixture 17 fixes the cover member 55 and the tool attachment member 54, and the fixture 18 is an arm described later on the cover member 55 and the tool attachment member 54. The part 16 is fixed.

  As shown in FIGS. 2A and 2B, the rotary joint 10 has a substantially cylindrical shape, and the vicinity of one end thereof is fixed near the rotation center of the magazine 53. Specifically, the rotary joint 10 is fixed to the cover member 55 of the magazine 53 by a substantially disc-shaped or substantially cylindrical flange portion 11. For fixing the rotary joint 10, the flange portion 11, and the cover member 55, for example, a screw or the like (not shown) may be used.

  The rotary joint 10 fixed to the magazine 53 can prevent the first tube 12 and the second tube 14 connected to the rotary joint 10 from being entangled or twisted when the magazine 53 rotates.

  The second tube 14 has one end connected to the rotary joint 10 and the other end connected to the tool 57. The second tube 14 is a tube or wiring suitable for the tool 57 to be connected. For example, when the tool 57 is an air spindle, an air tube for air, a power transmission cable, a communication cable, and the like are connected to the air spindle as the second tube 14.

  As described above, with the configuration in which the second tube 14 is connected to the plurality of tools 57, various types of tools 57 can be provided in the machine tool 50 (see FIG. 1). Processing operations can be performed.

  The second tube 14 is inserted into the protection rail 15 having one end fixed to the flange portion 11 with a screw or the like and the other end fixed to the tool 57, and is covered with the protection rail 15. The protective rail 15 is a duct or the like formed in a substantially chain shape. Specifically, the protection rail 15 is formed by connecting a plurality of substantially cylindrical members formed of synthetic resin or the like.

  By providing the protective rail 15, the bonding strength between the tool 57 used in the machine tool 50 and the rotary joint 10 is increased, and vibrations of the second tube 14 and the tool 57 are suppressed. Inappropriate bending or twisting of the second tube 14 is prevented, and the tool 57 is stably supported. Therefore, the replacement performance, processing performance, maintainability, and safety of the tools 56 and 57 in the machine tool 50 are improved. Is increased.

  Further, the power supply device 1 has an arm portion 16 having one end connected to the flange portion 11 of the rotary joint 10 and the other end connected to the vicinity of the outer peripheral surface of the tool attachment member 54. That is, the rotary joint 10 is fixed in the vicinity of the outer peripheral portion of the magazine 53 by the arm portion 16 extending from the flange portion 11 in the outer peripheral direction of the magazine 53.

  The arm portion 16 is formed in a substantially plate shape using, for example, a metal, a high-strength synthetic resin material, or the like. In addition, the arm portion 16 is formed with a bent portion 16 a that is bent so as to substantially follow the outer peripheral surface of the tool mounting member 54. The bent portion 16 a is fixed to the cover member 55 and the tool mounting member 54 of the magazine 53 by the fixture 18.

  The fixing tool 18 is a screw or the like that is substantially the same as the fixing tool 17 for fixing the cover member 55 and the tool mounting member 54, and the arm portion 16 has the cover member 55 and You may fix to the screw hole etc. which were formed in the tool attachment member 54. FIG.

  That is, the arm portion 16 may be fixed to the magazine 53 using an existing screw hole or the like formed in the magazine 53. Thereby, it is not necessary to newly form a screw hole or the like for fixing the arm portion 16 in the magazine 53, and the power supply device 1 can be easily attached.

  By providing the arm portion 16, the mounting strength of the rotary joint 10 can be increased, and the stability of the rotary joint 10, the flange portion 11, the second tube 14, the protective rail 15, etc. can be increased to suppress vibration. it can.

  In particular, as with the machine tool 50 illustrated in the present embodiment, the power supply device 1 is also subject to fluctuations such as the rotary joint 10 in a machine tool in which the rotation center of the magazine 53 is formed by a resin cover member 55 or the like. It can be attached in a stable state with little.

  In addition, since the rotary joint 10 and the like are not easily detached by being fixed by the arm portion 16, it is possible to attach a larger tool 57, increase the processing speed, shorten the replacement time of the tools 56 and 57, and the like. Thus, the machining efficiency of the machine tool 50 can be increased.

  For example, in the power supply device 1 according to the present invention in which the protection rail 15 and the arm portion 16 are provided, the second tube 14 may be connected to an ultrasonic vibrator that becomes a tool 57 larger than the conventional one. Thereby, automatic replacement of the ultrasonic vibrator in the machine tool 50 is facilitated, and the performance of the machine tool 50 can be improved.

  In the description of the present embodiment, in FIGS. 2A and 2B, the magazine 53 to which the power supply device 1 is attached is an example in which the total number of tools 56 and tools 57 is 21. Although shown, the number of tools 56 and 57 is not limited to this.

  2A shows an example in which four arm portions 16 are formed, the number of arm portions 16 is not limited to this. For example, the strength and stability of the rotary joint 10 and the like can be increased by increasing the number of arm portions 16. Further, in order to facilitate the mounting operation of the power supply device 1, the number of the arm portions 16 can be reduced.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Power supply apparatus 10 Rotary joint 11 Flange part 12 1st tube 13 Cover pipe 14 2nd tube 15 Protection rail 16 Arm part 16a Bending part 17 Fixing tool 18 Fixing tool 20 Power source generator 21 Distribution apparatus 22 Opening and closing Adjuster 50 Machine tool 51 Spindle 52 Table 53 Magazine 54 Tool mounting member 55 Cover member 56 Tool 57 Tool

Claims (4)

A power supply device attached to a machine tool having a rotary magazine to which a plurality of tools are attached and capable of supplying a power source to the tools,
A rotary joint attached near the rotation center of the magazine;
A first tube connected to the rotary joint for supplying the power source to the rotary joint;
A second tube having one end connected to the rotary joint and the other end connected to the tool to supply the power source from the rotary joint to the tool;
The rotary joint is fixed to the magazine by a flange portion, and is fixed to the vicinity of the outer peripheral portion of the magazine by an arm portion extending from the flange portion in the outer peripheral direction of the magazine. . The magazine includes a tool mounting member that is provided near the outer periphery of the magazine and stores the tool, and a cover member that covers the tool mounting member and extends to the vicinity of the rotation center of the magazine,
2. The power according to claim 1, wherein the rotary joint is fixed to the cover member via the flange portion, and is fixed to the cover member and the tool mounting member via the arm portion. Feeding device. One end is fixed to the flange portion, and the other end has a protective rail fixed to the tool.
The power supply apparatus according to claim 1, wherein the second tube is inserted into the protective rail. The power supply device according to any one of claims 1 to 3, wherein the second tube is connected to an ultrasonic vibrator serving as the tool.

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