JP2021088051A - Spring structure for machine tool - Google Patents

Spring structure for machine tool Download PDF

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Publication number
JP2021088051A
JP2021088051A JP2020126964A JP2020126964A JP2021088051A JP 2021088051 A JP2021088051 A JP 2021088051A JP 2020126964 A JP2020126964 A JP 2020126964A JP 2020126964 A JP2020126964 A JP 2020126964A JP 2021088051 A JP2021088051 A JP 2021088051A
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wall
air cylinder
sealing plate
plate
spring structure
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JP6814368B1 (en
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陳武夷
Wuyi Chen
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Hangzhou Muye Machinery Technology Co Ltd
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Hangzhou Muye Machinery Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0218—Mono-tubular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F16F9/435—Filling or drainage arrangements, e.g. for supply of gas via opening in cylinder wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F16F9/437—Drainage arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Machine Tool Units (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

To provide a spring structure for a machine tool that can accurately vary a buffering effect as a whole of the spring structure, has high buffering accuracy, can deal with different operation situations and has high practicability.SOLUTION: A spring structure for a machine tool includes an upper plate 1, a lower plate 2, and compression springs 3 provided vertically between the upper plate and the lower plate. The two compression springs are arranged in parallel, and an air tube 4 is provided vertically between the two compression springs. A lower end of the air tube is fixedly connected to the lower plate. A link 5 is provided vertically inside the air tube, and an upper end of the link is extended from the air tube and fixedly connected to the upper plate. A side wall of the lower end of the link and an inner wall of the air tube are provided to form a tight seal between the walls, and an annular shielding shoulder 4a is formed integrally in the inner wall of the lower end of the air tube.SELECTED DRAWING: Figure 1

Description

本発明は、機械技術分野に関し、特に工作機械の付属部品に関し、具体的には工作機械用のばね構造に関する。 The present invention relates to the field of machine technology, particularly to accessory parts of machine tools, and specifically to spring structures for machine tools.

ばねは、弾性で働く機械部品であり、弾性材料から作られる部品は、外部の力の作用によって変形し、外部の力がなくなった後にまた原状に戻る。 A spring is a mechanical part that works elastically, and a part made of an elastic material is deformed by the action of an external force and returns to its original state after the external force disappears.

例えば、ＣＮ２０１６２０９１２０６２．４には、ばね本体を含み、ばね本体の両端面には、端面固定パネルが設けられ、ばね本体は、一対の円柱状の中空螺旋体であり、固定パネルは、ばね本体、すなわち二つの螺旋体を固定するためのフック、を有する円形パネルであり、フックは、ばね本体の中心軸と平行する方向に沿ってばね本体の外側に設けられる圧縮ばねが開示されている。 For example, CN201620912062.4 includes a spring body, end face fixing panels are provided on both end faces of the spring body, the spring body is a pair of columnar hollow spiral bodies, and the fixing panel is a spring body, that is, It is a circular panel having hooks for fixing the two spiral bodies, and the hooks are disclosed as compression springs provided on the outside of the spring body along a direction parallel to the central axis of the spring body.

上記の圧縮ばねは、二つのばね本体によって緩衝機能を果たすが、二つのばね本体の緩衝範囲が変わらないため、緩衝精度が良くなく、高精度の稼働状況による需要を満たせないデメリットを有する。 The above compression spring functions as a buffer by two spring bodies, but since the buffer ranges of the two spring bodies do not change, the cushioning accuracy is not good, and there is a demerit that the demand due to high-precision operating conditions cannot be satisfied.

中国特許出願公開第２０６０１７５２３号明細書Chinese Patent Application Publication No. 206017523

本発明は、上記の技術的問題を解決するために、工作機械用のばね構造を提供し、緩衝精度を高める。 The present invention provides a spring structure for machine tools to solve the above technical problems and enhances cushioning accuracy.

上記の目的を実現するために、本発明の工作機械用のばね構造は、上板と、下板と、前記上板及び前記下板の間に鉛直に設けられる圧縮ばねと、を含み、前記圧縮ばねは、二つ並列して設けられ、二つの前記圧縮ばねの間には、空気筒が鉛直に設けられ、前記空気筒の下端は、前記下板と固定して接続され、前記空気筒の内部には、リンクが鉛直に設けられ、前記リンクの上端は、前記空気筒から延出して前記上板と固定して接続され、前記リンクの下端側壁と前記空気筒の内壁とは、両者の間に密封を形成して設けられ、前記空気筒における下端の内壁には、環状遮蔽肩が一体成形され、前記環状遮蔽肩は、前記空気筒の内部空洞を、上空間と下空間とに分割し、前記上空間には、密封板が水平に設けられ、前記密封板の外径は、前記上空間の内径より小さくなり、前記密封板と前記空気筒とは、摺動可能に接続され、前記密封板は、前記環状遮蔽肩の上端口を密封するように、前記環状遮蔽肩に当接して設けられ、前記下空間には、前記環状遮蔽肩の上端口を開けるように、前記密封板に上昇する傾向を与える伸縮ばねが設けられ、前記空気筒の側壁には、貫通するように、前記上空間と連通する通気孔が設けられ、前記空気筒の外部には、前記通気孔と連通する空気ノズルが固定され、前記下板には、貫通するように、前記下空間と連通する排気孔が設けられる。 In order to achieve the above object, the spring structure for a machine tool of the present invention includes an upper plate, a lower plate, and a compression spring provided vertically between the upper plate and the lower plate, and the compression spring. Are provided in parallel, an air cylinder is vertically provided between the two compression springs, and the lower end of the air cylinder is fixedly connected to the lower plate and is connected to the inside of the air cylinder. Is provided with a link vertically, the upper end of the link extends from the air cylinder and is fixedly connected to the upper plate, and the lower end side wall of the link and the inner wall of the air cylinder are between the two. An annular shielding shoulder is integrally formed on the inner wall of the lower end of the air cylinder, and the annular shielding shoulder divides the internal cavity of the air cylinder into an upper space and a lower space. A sealing plate is horizontally provided in the upper space, the outer diameter of the sealing plate is smaller than the inner diameter of the upper space, and the sealing plate and the air cylinder are slidably connected to each other. The sealing plate is provided in contact with the annular shielding shoulder so as to seal the upper end opening of the annular shielding shoulder, and in the lower space, the sealing plate is provided so as to open the upper end opening of the annular shielding shoulder. A telescopic spring that gives a tendency to rise is provided, a vent hole that communicates with the upper space is provided on the side wall of the air cylinder so as to penetrate, and the outside of the air cylinder communicates with the vent hole. The air nozzle is fixed, and the lower plate is provided with an exhaust hole communicating with the lower space so as to penetrate the lower plate.

使用手順：初期状態の時、前記密封板が前記伸縮ばねの作用によって上昇し、前記環状遮蔽肩の上端口が開けられる。図に示すように、使用時に、前記空気ノズルが前記上空間の内部に圧縮空気を注入し、前記密封板が気圧の作用によって前記伸縮ばねの弾力を克服して前記環状遮蔽肩の上端口を閉じるまで下降し、前記上空間内の気圧が設定値に達した時、給気を停止する。作動時に、前記上板が外部の力の作用によって二つの前記圧縮ばねの弾力と圧縮空気の圧力を同時に克服して下降し、緩衝を実現する。図に示すように、前記空気筒内の圧縮空気が緩衝機能を果たさない時、前記空気ノズルにより前記空気筒内の圧縮空気を排出し、この時、前記密封板が前記伸縮ばねの作用によって上昇するため、前記環状遮蔽肩の上端口が再び開けられ、前記リンクは止められずに摺動できる。 Procedure of use: In the initial state, the sealing plate is raised by the action of the telescopic spring, and the upper end opening of the annular shielding shoulder is opened. As shown in the figure, during use, the air nozzle injects compressed air into the upper space, and the sealing plate overcomes the elasticity of the telescopic spring by the action of atmospheric pressure to open the upper end opening of the annular shielding shoulder. It descends until it closes, and when the air pressure in the upper space reaches the set value, the air supply is stopped. At the time of operation, the upper plate simultaneously overcomes the elasticity of the two compression springs and the pressure of the compressed air by the action of an external force and descends to realize buffering. As shown in the figure, when the compressed air in the air cylinder does not function as a buffer, the compressed air in the air cylinder is discharged by the air nozzle, and at this time, the sealing plate is raised by the action of the telescopic spring. Therefore, the upper end opening of the annular shielding shoulder is opened again, and the link can slide without being stopped.

前記工作機械用のばね構造において、前記リンクの外側壁と前記空気筒の内側壁とは、互いに対応する円柱面であり、両者が当接して設けられることで、前記リンクの摺動性と摺動安定性を確保する。 In the spring structure for a machine tool, the outer wall of the link and the inner side wall of the air cylinder are cylindrical surfaces corresponding to each other, and when both are provided in contact with each other, the slidability and sliding of the link are achieved. Ensure dynamic stability.

前記工作機械用のばね構造において、前記リンクの外側壁には、環状凹溝が形成され、前記環状凹溝には、ガスケットが設けられ、前記ガスケットの外側壁は、前記空気筒の内側壁と当接することで、前記リンクと前記空気筒との間に、信頼できる密封を形成する。 In the spring structure for a machine tool, an annular groove is formed in the outer wall of the link, a gasket is provided in the annular groove, and the outer wall of the gasket is formed with the inner side wall of the air cylinder. Upon contact, a reliable seal is formed between the link and the air cylinder.

前記工作機械用のばね構造において、前記密封板の下壁には、環状をなす位置決め溝が形成され、前記位置決め溝には、環状ガスケットが固定され、前記環状ガスケットの上壁は、前記位置決め溝の下壁と当接し、前記密封板の下壁は、前記密封板が前記環状遮蔽肩に圧着される時に、前記環状遮蔽肩の上壁に押圧することができ、前記環状遮蔽肩の上端口を密封する効果を強める。 In the spring structure for a machine tool, an annular positioning groove is formed on the lower wall of the sealing plate, an annular gasket is fixed to the positioning groove, and the upper wall of the annular gasket is the positioning groove. In contact with the lower wall, the lower wall of the sealing plate can be pressed against the upper wall of the annular shielding shoulder when the sealing plate is crimped to the annular shielding shoulder, and the upper end opening of the annular shielding shoulder. Strengthen the effect of sealing.

前記工作機械用のばね構造において、前記下板の上壁には、案内柱が垂直に固定され、前記案内柱には、導管が外装され、前記導管の上端は、前記環状遮蔽肩を通り抜けて前記密封板と固定して接続され、前記伸縮ばねは、前記導管に外装され、前記伸縮ばねの両端は、それぞれ前記密封板及び前記下板と当接する。 In the spring structure for a machine tool, a guide column is vertically fixed to the upper wall of the lower plate, a conduit is attached to the guide column, and the upper end of the conduit passes through the annular shielding shoulder. Fixedly connected to the sealing plate, the telescopic spring is exteriorized by the conduit, and both ends of the telescopic spring come into contact with the sealing plate and the lower plate, respectively.

前記工作機械用のばね構造において、前記通気孔は、長尺状をなし、且つ傾斜して設けられ、前記通気孔の上端口と下端口は、それぞれ前記空気筒の外側壁と内側壁に位置し、前記通気孔の下端口は、前記密封板の上壁に正対し、これによって、前記密封板は、前記伸縮ばねの弾力を克服して下降することがしやすく、操作効率と便利性を向上させる。 In the spring structure for the machine tool, the ventilation holes are elongated and provided at an angle, and the upper end port and the lower end port of the ventilation holes are located on the outer wall and the inner wall surface of the air cylinder, respectively. However, the lower end port of the ventilation hole faces the upper wall of the sealing plate, whereby the sealing plate easily overcomes the elasticity of the telescopic spring and descends, which improves operation efficiency and convenience. Improve.

前記工作機械用のばね構造において、前記空気筒の外側壁には、管状をなす入気部が一体成形され、前記通気孔の上端口は、前記入気部と連通して設けられ、前記空気ノズルは、管状をなす排気部を含み、前記排気部は、前記入気部の内部に螺合される。 In the spring structure for a machine tool, a tubular air inlet portion is integrally formed on the outer wall of the air cylinder, and the upper end port of the vent hole is provided so as to communicate with the air inlet portion. The nozzle includes a tubular exhaust portion, and the exhaust portion is screwed into the inside of the air inlet portion.

本発明に関わる工作機械用のばね構造は、従来技術と比べ、下記のメリットを有する。 The spring structure for machine tools according to the present invention has the following merits as compared with the prior art.

空気筒と、密封板と、伸縮ばねと、空気ノズルと、排気孔などの部品から構成される緩衝構成材を設けることによって、空気筒内の気圧を変えることで、ばね構造全体の緩衝効果を精確に変えることができ、緩衝精度が高くなる他、本発明のばね構造が異なる稼働状況に対応でき、実用性が高まる。 By providing a buffer component consisting of an empty cylinder, a sealing plate, a telescopic spring, an air nozzle, and parts such as an exhaust hole, the air pressure inside the air cylinder can be changed to provide a buffer effect for the entire spring structure. It can be changed accurately, the cushioning accuracy is improved, and the spring structure of the present invention can cope with different operating conditions, which enhances practicality.

リンクは、空気筒内の圧縮空気を圧縮することで緩衝効果を実現できる他、緩衝プロセス全体に良好な緩衝効果を実現し、一石二鳥のメリットを有する上に、構造が簡単で、取付が便利である。 The link can achieve a cushioning effect by compressing the compressed air in the air cylinder, and also achieves a good buffering effect for the entire buffering process, which has the advantages of two birds with one stone, and is simple in structure and convenient to install. is there.

本願に記載の各方向が、図１と同じ向きに装置を見た際の方向である。 Each direction described in the present application is a direction when the device is viewed in the same direction as in FIG.

空気空間内に圧縮空気が貯蔵されている時の工作機械用のばね構造の構造図である。It is a structural drawing of a spring structure for a machine tool when compressed air is stored in an air space. 図１におけるＡの部分の構造図である。It is a structural drawing of the part A in FIG. 空気空間内に圧縮空気が貯蔵されていない時の工作機械用のばね構造の構造図である。It is a structural drawing of the spring structure for a machine tool when compressed air is not stored in the air space.

以下、図１〜図３を参照しながら本実施形態について説明する。本発明の実施例に係る技術的内容を明確かつ完全に説明する。明らかに、以下に説明する実施例は、本発明の実施例の一部にすぎず、すべての実施例ではない。本発明の実施例に基づいて、当業者は、創作的な努力なしで得られるすべての実施例は、本発明の保護範囲内に含まれる。 Hereinafter, the present embodiment will be described with reference to FIGS. 1 to 3. The technical contents of the embodiments of the present invention will be described clearly and completely. Obviously, the examples described below are only a part of the examples of the present invention and not all of them. Based on the examples of the present invention, those skilled in the art will include all examples obtained without creative effort within the scope of protection of the present invention.

図１に示すように、本発明の工作機械用のばね構造は、正対して設けられる上板１及び下板２と、上板１及び下板２の間に鉛直に設けられる圧縮ばね３と、を含み、圧縮ばね３は、二つ並列して設けられる。本実施例において、圧縮ばね３の両端は、いずれも溶接によって上板１及び下板２に固定して接続される。 As shown in FIG. 1, the spring structure for a machine tool of the present invention includes an upper plate 1 and a lower plate 2 provided facing each other and a compression spring 3 provided vertically between the upper plate 1 and the lower plate 2. , And two compression springs 3 are provided in parallel. In this embodiment, both ends of the compression spring 3 are fixedly connected to the upper plate 1 and the lower plate 2 by welding.

具体的には、二つの圧縮ばね３の間には、空気筒４が鉛直に設けられ、空気筒４の下端は、下板２と固定して接続される。空気筒４と下板２とは、溶接によって固定して接続されることが好適である。空気筒４の内部には、リンク５が鉛直に設けられ、リンク５の上端は、空気筒４から延出して上板１と固定して接続され、リンク５の下端側壁と空気筒４の内壁とは、両者の間に密封を形成して設けられる。本実施例において、リンク５の外側壁と空気筒４の内側壁とは、互いに対応する円柱面であり、両者が当接して設けられるため、リンク５の摺動性と摺動の安定性が確保される。リンク５の外側壁には、環状凹溝が形成され、環状凹溝は、リンク５と同一軸線に形成され、環状凹溝には、ガスケット６が設けられ、ガスケット６の外側壁は、空気筒４の内側壁と当接して設けられ、これによって、リンク５と空気筒４との間に、信頼できる密封が形成される。 Specifically, an air cylinder 4 is vertically provided between the two compression springs 3, and the lower end of the air cylinder 4 is fixedly connected to the lower plate 2. It is preferable that the empty cylinder 4 and the lower plate 2 are fixedly connected by welding. A link 5 is vertically provided inside the empty cylinder 4, the upper end of the link 5 extends from the air cylinder 4 and is fixedly connected to the upper plate 1, and the lower end side wall of the link 5 and the inner wall of the air cylinder 4 are connected. Is provided by forming a seal between the two. In this embodiment, the outer wall of the link 5 and the inner side wall of the air cylinder 4 are cylindrical surfaces corresponding to each other, and since they are provided in contact with each other, the slidability and sliding stability of the link 5 are improved. Secured. An annular groove is formed on the outer wall of the link 5, the annular groove is formed on the same axis as the link 5, a gasket 6 is provided on the annular groove, and the outer wall of the gasket 6 is an air cylinder. It is provided in contact with the inner wall of 4 to form a reliable seal between the link 5 and the air cylinder 4.

空気筒４における下端の内壁には、環状遮蔽肩４ａが一体成形され、環状遮蔽肩４ａは、空気筒４と同一軸線に配置される。環状遮蔽肩４ａは、空気筒４の内部空洞を、上空間４ｂと下空間４ｃとに分割し、上空間４ｂには、密封板７が水平に設けられ、好ましくは、密封板７は、空気筒４と同一軸線に配置される。密封板７の外径は、上空間４ｂの内径より小さくなるため、密封板７の側壁と空気筒４の内側壁との間には、環状隙間が形成する。密封板７と空気筒４とは、摺動可能に接続され、密封板７は、環状遮蔽肩４ａの上端口を密封するように、環状遮蔽肩４ａに当接して設けられ、下空間４ｃには、環状遮蔽肩４ａの上端口を開けるように、密封板７に上昇する傾向を与える伸縮ばね８が設けられる。具体的には、下板２の上壁には、案内柱９が垂直に固定され、好ましくは、案内柱９と下板２とは、溶接によって固定して接続される。案内柱９には、導管１０が外装され、導管１０の上端は、環状遮蔽肩４ａを通り抜けて密封板７と固定して接続され、伸縮ばね８は、導管１０に外装され、伸縮ばね８の両端は、それぞれ密封板７及び下板２と当接する。密封板７の下壁には、環状をなす位置決め溝が形成され、位置決め溝には、環状ガスケット１１が固定され、環状ガスケット１１の上壁は、位置決め溝の下壁と当接し、密封板７の下壁は、密封板７が環状遮蔽肩４ａに圧着される時に、環状遮蔽肩４ａの上壁に押圧することができるため、環状遮蔽肩４ａの上端口を密封する効果が強化される。 An annular shielding shoulder 4a is integrally molded on the inner wall of the lower end of the empty cylinder 4, and the annular shielding shoulder 4a is arranged on the same axis as the air cylinder 4. The annular shielding shoulder 4a divides the internal cavity of the air cylinder 4 into an upper space 4b and a lower space 4c, and a sealing plate 7 is horizontally provided in the upper space 4b. It is arranged on the same axis as the cylinder 4. Since the outer diameter of the sealing plate 7 is smaller than the inner diameter of the upper space 4b, an annular gap is formed between the side wall of the sealing plate 7 and the inner side wall of the air cylinder 4. The sealing plate 7 and the air cylinder 4 are slidably connected, and the sealing plate 7 is provided in contact with the annular shielding shoulder 4a so as to seal the upper end port of the annular shielding shoulder 4a, and is provided in the lower space 4c. Is provided with a telescopic spring 8 that gives the sealing plate 7 a tendency to rise so as to open the upper end opening of the annular shielding shoulder 4a. Specifically, the guide pillar 9 is vertically fixed to the upper wall of the lower plate 2, and preferably, the guide pillar 9 and the lower plate 2 are fixed and connected by welding. A conduit 10 is externally attached to the guide pillar 9, the upper end of the conduit 10 passes through the annular shielding shoulder 4a and is fixedly connected to the sealing plate 7, and the telescopic spring 8 is externally attached to the conduit 10 and is connected to the telescopic spring 8. Both ends come into contact with the sealing plate 7 and the lower plate 2, respectively. An annular positioning groove is formed on the lower wall of the sealing plate 7, an annular gasket 11 is fixed to the positioning groove, the upper wall of the annular gasket 11 abuts on the lower wall of the positioning groove, and the sealing plate 7 Since the lower wall can be pressed against the upper wall of the annular shielding shoulder 4a when the sealing plate 7 is crimped to the annular shielding shoulder 4a, the effect of sealing the upper end opening of the annular shielding shoulder 4a is enhanced.

図１と図２に示すように、空気筒４の側壁には、貫通するように、上空間４ｂと連通する通気孔４ｄが設けられ、空気筒４の外部には、通気孔４ｄと連通する空気ノズル４が固定され、下板２には、貫通するように、下空間４ｃと連通する排気孔２ａが設けられ、排気孔２ａは、少なくとも二つある。更に、通気孔４ｄは、長尺状をなし、且つ傾斜して設けられ、通気孔４ｄの上端口と下端口は、それぞれ空気筒４の外側壁と内側壁に位置し、通気孔４ｄの下端口は、密封板７の上壁に正対するため、密封板７は、伸縮ばね８の弾力を克服して下降することがしやすく、操作効率と便利性を向上させる。空気筒４の外側壁には、管状をなす入気部４ｅが一体成形され、通気孔４ｄの上端口は、入気部４ｅと連通して設けられ、空気ノズル４は、管状をなす排気部を含み、排気部は、入気部４ｅの内部に螺合される。 As shown in FIGS. 1 and 2, the side wall of the air cylinder 4 is provided with a ventilation hole 4d that communicates with the upper space 4b so as to penetrate, and the outside of the air cylinder 4 communicates with the ventilation hole 4d. The air nozzle 4 is fixed, and the lower plate 2 is provided with exhaust holes 2a communicating with the lower space 4c so as to penetrate the lower plate 2, and there are at least two exhaust holes 2a. Further, the ventilation holes 4d are elongated and provided so as to be inclined, and the upper end port and the lower end port of the ventilation holes 4d are located on the outer wall and the inner side wall of the air cylinder 4, respectively, and are below the ventilation holes 4d. Since the end opening faces the upper wall of the sealing plate 7, the sealing plate 7 easily overcomes the elasticity of the telescopic spring 8 and descends, improving operation efficiency and convenience. A tubular air inlet portion 4e is integrally molded on the outer wall of the empty cylinder 4, the upper end port of the ventilation hole 4d is provided in communication with the air inlet portion 4e, and the air nozzle 4 is a tubular exhaust portion. The exhaust portion is screwed into the inside of the air inlet portion 4e.

使用手順：図３に示すように、初期状態の時、密封板７が伸縮ばね８の作用によって上昇し、環状遮蔽肩４ａの上端口が開けられる。図１に示すように、使用時に、空気ノズル１２が上空間４ｂの内部に圧縮空気を注入し、密封板７が気圧の作用によって伸縮ばね８の弾力を克服して環状遮蔽肩４ａの上端口を閉じるまで下降し、上空間４ｂ内の気圧が設定値に達した時、給気を停止する。作動時に、上板１が外部の力の作用によって二つの圧縮ばね３の弾力と圧縮空気の圧力を同時に克服して下降し、緩衝を実現する。図３に示すように、空気筒４内の圧縮空気が緩衝機能を果たさない時、空気ノズル１２により空気筒４内の圧縮空気を排出し、この時、密封板７が伸縮ばね８の作用によって上昇するため、環状遮蔽肩４ａの上端口が再び開けられ、リンク５は止められずに摺動できる。 Procedure of use: As shown in FIG. 3, in the initial state, the sealing plate 7 is raised by the action of the telescopic spring 8 to open the upper end opening of the annular shielding shoulder 4a. As shown in FIG. 1, during use, the air nozzle 12 injects compressed air into the upper space 4b, and the sealing plate 7 overcomes the elasticity of the telescopic spring 8 by the action of atmospheric pressure, and the upper end opening of the annular shielding shoulder 4a. It descends until it closes, and when the air pressure in the upper space 4b reaches the set value, the air supply is stopped. At the time of operation, the upper plate 1 simultaneously overcomes the elasticity of the two compression springs 3 and the pressure of the compressed air by the action of an external force and descends to realize buffering. As shown in FIG. 3, when the compressed air in the air cylinder 4 does not perform the buffering function, the compressed air in the air cylinder 4 is discharged by the air nozzle 12, and at this time, the sealing plate 7 is acted on by the expansion / contraction spring 8. As it rises, the upper end opening of the annular shielding shoulder 4a is opened again, and the link 5 can slide without being stopped.

１ 上板
２ 下板
２ａ 排気孔
３ 圧縮ばね
４ 空気筒
４ａ 環状遮蔽肩
４ｂ 上空間
４ｃ 下空間
４ｄ 通気孔
４ｅ 入気部
５ リンク
６ ガスケット
７ 密封板
８ 伸縮ばね
９ 案内柱
１０ 導管
１１ 環状ガスケット
１２ 空気ノズル 1 Upper plate 2 Lower plate 2a Exhaust hole 3 Compression spring 4 Empty cylinder 4a Circular shielding shoulder 4b Upper space 4c Lower space 4d Ventilation hole 4e Air inlet 5 Link 6 Gasket 7 Sealing plate 8 Telescopic spring 9 Guide pillar 10 Conduit 11 Circular gasket 12 air nozzle

Claims (7)

工作機械用のばね構造であって、
上板と、下板と、前記上板及び前記下板の間に鉛直に設けられる圧縮ばねと、を含み、
前記圧縮ばねは、二つ並列して設けられ、
二つの前記圧縮ばねの間には、空気筒が鉛直に設けられ、
前記空気筒の下端は、前記下板と固定して接続され、
前記空気筒の内部には、リンクが鉛直に設けられ、
前記リンクの上端は、前記空気筒から延出して前記上板と固定して接続され、
前記リンクの下端側壁と前記空気筒の内壁とは、両者の間に密封を形成して設けられ、
前記空気筒における下端の内壁には、環状遮蔽肩が一体成形され、
前記環状遮蔽肩は、前記空気筒の内部空洞を、上空間と下空間とに分割し、
前記上空間には、密封板が水平に設けられ、
前記密封板の外径は、前記上空間の内径より小さくなり、
前記密封板と前記空気筒とは、摺動可能に接続され、
前記密封板は、前記環状遮蔽肩の上端口を密封するように、前記環状遮蔽肩に当接して設けられ、
前記下空間には、前記環状遮蔽肩の上端口を開けるように、前記密封板に上昇する傾向を与える伸縮ばねが設けられ、
前記空気筒の側壁には、貫通するように、前記上空間と連通する通気孔が設けられ、
前記空気筒の外部には、前記通気孔と連通する空気ノズルが固定され、
前記下板には、貫通するように、前記下空間と連通する排気孔が設けられる、
ことを特徴とする工作機械用のばね構造。 A spring structure for machine tools
Includes an upper plate, a lower plate, and a compression spring provided vertically between the upper plate and the lower plate.
Two compression springs are provided in parallel.
An air cylinder is provided vertically between the two compression springs.
The lower end of the air cylinder is fixedly connected to the lower plate and connected.
A link is vertically provided inside the air cylinder.
The upper end of the link extends from the air cylinder and is fixedly connected to the upper plate.
The lower end side wall of the link and the inner wall of the air cylinder are provided so as to form a seal between them.
An annular shielding shoulder is integrally molded on the inner wall of the lower end of the air cylinder.
The annular shielding shoulder divides the internal cavity of the air cylinder into an upper space and a lower space.
A sealing plate is horizontally provided in the upper space.
The outer diameter of the sealing plate is smaller than the inner diameter of the upper space.
The sealing plate and the air cylinder are slidably connected to each other.
The sealing plate is provided in contact with the annular shielding shoulder so as to seal the upper end opening of the annular shielding shoulder.
The lower space is provided with a telescopic spring that gives the sealing plate a tendency to rise so as to open the upper end opening of the annular shielding shoulder.
The side wall of the air cylinder is provided with a ventilation hole that communicates with the upper space so as to penetrate the air cylinder.
An air nozzle communicating with the ventilation hole is fixed to the outside of the air cylinder.
The lower plate is provided with an exhaust hole that communicates with the lower space so as to penetrate the lower plate.
A spring structure for machine tools that is characterized by this. 前記リンクの外側壁と前記空気筒の内側壁とは、互いに対応する円柱面であり、両者が当接して設けられる、
ことを特徴とする請求項１に記載の工作機械用のばね構造。 The outer wall of the link and the inner side wall of the air cylinder are cylindrical surfaces corresponding to each other, and are provided in contact with each other.
The spring structure for a machine tool according to claim 1. 前記リンクの外側壁には、環状凹溝が形成され、
前記環状凹溝には、ガスケットが設けられ、
前記ガスケットの外側壁は、前記空気筒の内側壁と当接する、
ことを特徴とする請求項２に記載の工作機械用のばね構造。 An annular groove is formed on the outer wall of the link.
A gasket is provided in the annular groove.
The outer wall of the gasket comes into contact with the inner wall of the air cylinder.
2. The spring structure for a machine tool according to claim 2. 前記密封板の下壁には、環状をなす位置決め溝が形成され、
前記位置決め溝には、環状ガスケットが固定され、
前記環状ガスケットの上壁は、前記位置決め溝の下壁と当接し、
前記密封板の下壁は、前記密封板が前記環状遮蔽肩に圧着される時に、前記環状遮蔽肩の上壁に押圧することができる、
ことを特徴とする請求項１に記載の工作機械用のばね構造。 An annular positioning groove is formed on the lower wall of the sealing plate.
An annular gasket is fixed to the positioning groove.
The upper wall of the annular gasket comes into contact with the lower wall of the positioning groove.
The lower wall of the sealing plate can be pressed against the upper wall of the annular shielding shoulder when the sealing plate is crimped to the annular shielding shoulder.
The spring structure for a machine tool according to claim 1. 前記下板の上壁には、案内柱が垂直に固定され、
前記案内柱には、導管が外装され、
前記導管の上端は、前記環状遮蔽肩を通り抜けて前記密封板と固定して接続され、
前記伸縮ばねは、前記導管に外装され、
前記伸縮ばねの両端は、それぞれ前記密封板及び前記下板と当接する、
ことを特徴とする請求項１又は請求項２又は請求項３又は請求項４に記載の工作機械用のばね構造。 A guide pillar is vertically fixed to the upper wall of the lower plate.
A conduit is externally attached to the guide pillar.
The upper end of the conduit passes through the annular shielding shoulder and is fixedly connected to the sealing plate.
The telescopic spring is externally attached to the conduit.
Both ends of the telescopic spring come into contact with the sealing plate and the lower plate, respectively.
The spring structure for a machine tool according to claim 1 or 2, or 3, 3 or 4, wherein the spring structure is characterized in that. 前記通気孔は、長尺状をなし、且つ傾斜して設けられ、
前記通気孔の上端口と下端口は、それぞれ前記空気筒の外側壁と内側壁に位置し、
前記通気孔の下端口は、前記密封板の上壁に正対する、
ことを特徴とする請求項１に記載の工作機械用のばね構造。 The ventilation holes have an elongated shape and are provided so as to be inclined.
The upper end port and the lower end port of the ventilation hole are located on the outer wall and the inner side wall of the air cylinder, respectively.
The lower end of the ventilation hole faces the upper wall of the sealing plate.
The spring structure for a machine tool according to claim 1. 前記空気筒の外側壁には、管状をなす入気部が一体成形され、
前記通気孔の上端口は、前記入気部と連通して設けられ、
前記空気ノズルは、管状をなす排気部を含み、
前記排気部は、前記入気部の内部に螺合される、
ことを特徴とする請求項６に記載の工作機械用のばね構造。 A tubular air inlet is integrally molded on the outer wall of the air cylinder.
The upper end port of the ventilation hole is provided so as to communicate with the air inlet portion.
The air nozzle includes a tubular exhaust section.
The exhaust portion is screwed into the inside of the air inlet portion.
The spring structure for a machine tool according to claim 6.
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GB2586431A (en) 2021-02-17
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CN111022557B (en) 2021-07-09
JP6814368B1 (en) 2021-01-20
GB202019643D0 (en) 2021-01-27

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