阅读说明：本技术 一种用于机械轴的中心出气机构 (Central air outlet mechanism for mechanical shaft ) 是由 李存杰 李兆杰 欧阳潜 于 2021-05-20 设计创作，主要内容包括：本发明公开了一种用于机械轴的中心出气机构,包括后盖,后盖中部插设有后盖环,后盖右表面开设有中心吹气孔,后盖上表面左右两端螺纹内接有锁固螺钉,锁固螺钉表面下端活动连接有打刀环,后盖前、后端设置密封槽圈,密封槽圈与打刀环构成密封环机构,后盖内壁固定内接有密封圈,后盖上表面固定内接有转子,转子内壁活动内接有拉杆,打刀环中部插设有转子芯,打刀环径向插设有导正销,打刀环中部开设有气封环,导正销中部开设有T型线路,T型线路前两端与周边的气封环相通,拉杆中心处开设有盲孔；拉杆后端开始有径向槽,导正销贯穿内接在径向槽内部,使得该装置在使用时可实现吹气带走污渍,且无刀状态下防尘效果更好。(The invention discloses a central air outlet mechanism for a mechanical shaft, which comprises a rear cover, wherein a rear cover ring is inserted in the middle of the rear cover, a central air blowing hole is formed in the right surface of the rear cover, locking screws are connected in threads at the left end and the right end of the upper surface of the rear cover in an internal connection mode, a cutter beating ring is movably connected at the lower end of the surface of each locking screw, sealing groove rings are arranged at the front end and the rear end of the rear cover, each sealing groove ring and the cutter beating ring form a sealing ring mechanism, a sealing ring is fixedly connected in the inner wall of the rear cover in an internal connection mode, a rotor is fixedly connected in the upper surface of the rear cover in an internal connection mode, a pull rod is movably connected in the inner wall of the rotor in an internal connection mode, a rotor core is inserted in the cutter beating ring, a guide pin is radially inserted in the cutter beating ring, an air sealing ring is arranged in the middle of the cutter beating ring, a T-shaped circuit is arranged in the middle of the guide pin, the front two ends of the T-shaped circuit are communicated with the peripheral air sealing ring, and a blind hole is formed in the center of the pull rod; the rear end of the pull rod starts to be provided with a radial groove, and the guide pin penetrates and is internally connected in the radial groove, so that the device can blow air to take away stains when in use, and the dustproof effect is better in a non-knife state.)

1. The utility model provides a center mechanism of giving vent to anger for mechanical axis, includes back lid (1), center hole (2) of blowing has been seted up on back lid (1) right side surface, both ends screw thread is internal to have lock screw (3) about back lid (1) upper surface, lock screw (3) surface lower extreme swing joint has knife ring (4) of beating, back lid (1) inner wall is fixed to be internal to have sealing washer (5), back lid (1) upper surface is fixed to be internal to have rotor (6), rotor (6) inner wall activity is internal to have pull rod (7), its characterized in that: the rotor core is inserted in the middle of the knife striking ring (4), the guide pin (8) is radially inserted in the knife striking ring (4), and the air seal ring is arranged in the middle of the knife striking ring (4).

2. The central air outlet mechanism for the mechanical shaft according to claim 1, wherein: a blind hole is formed in the center of the pull rod (7); the rear end of the pull rod (7) is provided with a radial groove, and the guide pin (8) penetrates and is inscribed in the radial groove.

3. The central air outlet mechanism for the mechanical shaft according to claim 1, wherein: the front end and the rear end of the rear cover (1) are provided with sealing groove rings, and the sealing groove rings and the cutter beating ring (4) form a sealing ring mechanism.

4. The central air outlet mechanism for the mechanical shaft according to claim 1, wherein: a rear cover ring is inserted in the middle of the rear cover (1).

5. The central air outlet mechanism for the mechanical shaft according to claim 1, wherein: and a T-shaped circuit is arranged in the middle of the guide pin (8), and the front two ends of the T-shaped circuit are communicated with the peripheral gas seal ring.

Technical Field

The invention relates to the technical field of main shafts, in particular to a central air outlet mechanism for a mechanical shaft.

Background

When the machine tool is used for processing; when the spindle is used for tool changing, due to the influence of negative pressure in the spindle, the chip foam attached to the front end of the spindle is easy to cause, and water vapor enters the conical surface of the rotor and the conical surface of the tool holder; therefore, the precision of the main shaft and the cutter handle is influenced, or water at the front end enters the main shaft, so that the service lives of the main shaft and the cutter handle are influenced; due to the particularity of the mechanical shaft, the block on the market is lacked or adopts a continuous air blowing mode; in such a way, when a cutter is clamped, high air pressure exists at the front end of the main shaft, and low air pressure exists outside, so that external dust and water vapor can enter; a main shaft is researched, and air blowing can be realized only when a knife is loosened.

Disclosure of Invention

The present invention is directed to a central air outlet mechanism for a mechanical shaft, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a center mechanism of giving vent to anger for mechanical axis, includes the back lid, back lid right side surface has seted up central gas hole, both ends screw inscription has the lock solid screw about back lid upper surface, lock solid screw surface lower extreme swing joint has the cutter ring, back lid inner wall is fixed to be inscribed with the sealing washer, back lid upper surface is fixed to be inscribed with the rotor, rotor inner wall activity inscription has the pull rod, cutter ring inside is inserted and is equipped with the rotor core, cutter ring radial insertion is equipped with the guide pin, cutter ring middle part has seted up the atmoseal ring.

Preferably, a blind hole is formed in the center of the pull rod; the rear end of the pull rod is provided with a radial groove, and the guide pin penetrates and is internally connected in the radial groove.

Preferably, the front end and the rear end of the rear cover are provided with sealing groove rings, and the sealing groove rings and the cutter beating ring form a sealing ring mechanism.

Preferably, a rear cover ring is inserted in the middle of the rear cover.

Preferably, a T-shaped circuit is arranged in the middle of the guide pin, and the front two ends of the T-shaped circuit are communicated with the peripheral air seal ring.

Compared with the prior art, the invention has the beneficial effects that:

(1) when the cutter is released, the center air outlet mechanism for the mechanical shaft pushes the cutter beating ring to move forwards, so that a piston of the cutter beating ring is in contact with a sealing groove of the rear cover; forming a sealing cavity of the front cover, then enabling an air path to enter a hole in the middle of the guide pin from two ends of the guide pin, then enabling the air path to penetrate through the hole in the middle of the pull rod, enabling the air path to enter a conical surface where the knife handle is contacted with the rotor [ W1], realizing air blowing on the conical surface of the knife handle and an inner hole of the rotor, taking away dust and dirt adsorbed on the surface of the knife handle and splashing, canceling pressure applied on a knife beating ring after the knife is pushed out, enabling the pull rod to retreat under the action of a disc at the moment, enabling the knife beating ring to retreat through the guide pin, opening the knife beating ring and the rear end of the rear cover, and discharging air flow from the rear end of the guide pin; the gas circuit of front end disappears for under no sword state, the front end of leading positive round pin this moment is because central gas circuit forms the high atmospheric pressure, makes outside dirt, and the water stain flows back into from the outside and leads in the positive round pin, stops in the place that gas can not blow, makes the device can realize blowing when using and take away the spot, and does not have the sword state under dustproof effect better.

(2) The center air outlet mechanism for the mechanical shaft has the advantages that when the cutter is clamped, the cutter is moved forwards, so that the air path is opened, air blowing is realized, after the cutter handle is clamped, the cutter ring is moved backwards under the thrust of the reaction of the disc, at the moment, the air path at the rear end is opened, and air flow is discharged and does not pass through the pull rod to enter the front end of the guide pin; the air channel that effectual prevention was blown in the center is behind the double-layered sword, and at front end stroke atmospheric pressure, lead to leading the dead man to form the atmospheric pressure difference around, influence the use accuracy of leading the dead man to and dynamic balance, this mechanism simple structure only needs to increase the seal groove, realizes that the center blows in real time, has effectively ensured the use accuracy and the dynamic balance degree of leading the dead man.

Drawings

FIG. 1 is a schematic view of a gas outlet structure in a knife clamping state according to the present invention;

FIG. 2 is a schematic view of a blowing structure in a clamped state according to the present invention;

FIG. 3 is a perspective view of a guide pin according to the present invention;

FIG. 4 is a longitudinal sectional view of the pilot pin of the present invention;

FIG. 5 is a top view of a pilot pin according to the present invention;

FIG. 6 is a schematic perspective view of a cutter ring according to the present invention;

FIG. 7 is a cross-sectional view of the cutting ring according to the present invention;

FIG. 8 is a schematic longitudinal sectional view of the ring for punching a knife according to the present invention.

In the figure: 1. a rear cover; 2. a central air blowing hole; 3. locking screws; 4. a cutter ring is arranged; 5. a seal ring; 6. a rotor; 7. a pull rod; 8. and a pilot pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution: a central air outlet mechanism for a mechanical shaft comprises a rear cover 1, wherein a rear cover ring is inserted in the middle of the rear cover 1, a central air blowing hole 2 is formed in the right surface of the rear cover 1, locking screws 3 are connected in threads at the left end and the right end of the upper surface of the rear cover 1, a knife ring 4 is movably connected to the lower end of the surface of each locking screw 3, sealing groove rings are arranged at the front end and the rear end of the rear cover 1 and form a sealing ring mechanism together with the knife ring 4, a sealing ring 5 is fixedly connected in the inner wall of the rear cover 1, a rotor 6 is fixedly connected in the upper surface of the rear cover 1, a pull rod 7 is movably connected in the inner wall of the rotor 6, a rotor core is inserted in the middle of the knife ring 4, a guide pin 8 is radially inserted in the knife ring 4, an air sealing ring is arranged in the middle of the knife ring 4, a T-shaped line is arranged in the middle of the guide pin 8, the front two ends of the T-shaped line are communicated with the peripheral air sealing ring, and a blind hole is formed in the center of the pull rod 7; a radial groove is formed at the rear end of the pull rod 7, the guide pin 8 penetrates and is internally connected in the radial groove, and when the knife is released, the knife beating ring 4 is pushed to move forwards, so that the piston of the knife beating ring 4 is in contact with the sealing groove of the rear cover 1; forming a sealing cavity of a front cover, then enabling an air path to enter a hole in the middle of a guide pin 8 from two ends of the guide pin 8, then enabling the air path to penetrate through the hole in the middle of a pull rod 7, pulling a claw assembly and enter a conical surface of a knife handle contacted with the guide pin 8, realizing air blowing on the conical surface of the knife handle and an inner hole of a rotor 6, taking away dust and dirt adsorbed on the surface of the knife handle and splashing, canceling pressure applied on a knife ring 4 after the knife is pushed out, enabling the pull rod 7 to retreat under the action of a disc at the moment, enabling the knife ring 4 to retreat through the guide pin 8, opening the knife ring 4 and the rear end of a rear cover 1, and discharging air flow from the rear end of the guide pin 8; the air path at the front end disappears, so that in a cutter-free state, the front end of the guide pin 8 forms high air pressure due to the central air path, so that external dust and dirt and water traces flow backwards into the guide pin 8 from the outside and stay in a place where air cannot be blown, and therefore, the air path can realize air blowing in a cutter feeding and clamping state; under the state of no knife or knife clamping, the gas circuit at the rear end is opened to realize exhaust;

the second step is that: when clamping the cutter; the cutter is moved before replacing, so that an air path is opened to realize air blowing, after the cutter handle is clamped, the cutter ring 4 is moved backwards under the thrust of the reaction of the disc, at the moment, the air path at the rear end is opened, and air flow is discharged and does not pass through the pull rod 7 to enter the front end of the guide pin 8; the air pressure difference around leading the formation of the guide pin 8 is effectively prevented from influencing the use precision and the dynamic balance of the guide pin 8 due to the air path of central air blowing and the air pressure of the front end stroke after the cutter clamping, the structure of the mechanism is simple, only a sealing groove needs to be added, and the central real-time air blowing is realized.

Specifically, when the invention is used:

the first step is as follows: when the knife is released, the knife beating ring 4 is pushed to move forwards, so that the piston of the knife beating ring 4 is contacted with the sealing groove of the rear cover 1; forming a sealing cavity of a front cover, then enabling an air path to enter a hole in the middle of a guide pin 8 from two ends of the guide pin 8, then enabling the air path to penetrate through the hole in the middle of a pull rod 7, pulling a claw assembly and enter a conical surface of a knife handle contacted with the guide pin 8, realizing air blowing on the conical surface of the knife handle and an inner hole of a rotor 6, taking away dust and dirt adsorbed on the surface of the knife handle and splashing, canceling pressure applied on a knife ring 4 after the knife is pushed out, enabling the pull rod 7 to retreat under the action of a disc at the moment, enabling the knife ring 4 to retreat through the guide pin 8, opening the knife ring 4 and the rear end of a rear cover 1, and discharging air flow from the rear end of the guide pin 8; the air path at the front end disappears, so that in a cutter-free state, the front end of the guide pin 8 forms high air pressure due to the central air path, so that external dust and dirt and water traces flow backwards into the guide pin 8 from the outside and stay in a place where air cannot be blown, and therefore, the air path can realize air blowing in a cutter feeding and clamping state; under the state of no knife or knife clamping, the gas circuit at the rear end is opened to realize exhaust;

the second step is that: when clamping the cutter; the cutter is moved before replacing, so that an air path is opened to realize air blowing, after the cutter handle is clamped, the cutter ring 4 is moved backwards under the thrust of the reaction of the disc, at the moment, the air path at the rear end is opened, and air flow is discharged and does not pass through the pull rod 7 to enter the front end of the guide pin 8; the air pressure difference around leading the formation of the guide pin 8 is effectively prevented from influencing the use precision and the dynamic balance of the guide pin 8 due to the air path of central air blowing and the air pressure of the front end stroke after the cutter clamping, the structure of the mechanism is simple, only a sealing groove needs to be added, and the central real-time air blowing is realized.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.