WO2022021579A1 - Machine-outil de rectification d'engrenages à commande numérique - Google Patents

Machine-outil de rectification d'engrenages à commande numérique Download PDF

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Publication number
WO2022021579A1
WO2022021579A1 PCT/CN2020/115936 CN2020115936W WO2022021579A1 WO 2022021579 A1 WO2022021579 A1 WO 2022021579A1 CN 2020115936 W CN2020115936 W CN 2020115936W WO 2022021579 A1 WO2022021579 A1 WO 2022021579A1
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WO
WIPO (PCT)
Prior art keywords
axis
vertical beam
mounting seat
machine tool
guide rail
Prior art date
Application number
PCT/CN2020/115936
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English (en)
Chinese (zh)
Inventor
李长顺
邹文毅
蒋恺
史伟
尚吉顺
周庆华
张春晖
Original Assignee
湖南中大创远数控装备有限公司
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Application filed by 湖南中大创远数控装备有限公司 filed Critical 湖南中大创远数控装备有限公司
Publication of WO2022021579A1 publication Critical patent/WO2022021579A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
    • B23F5/02—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding
    • B23F5/06—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding the tool being a grinding disc with a plane front surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines

Definitions

  • the invention relates to a numerical control machine tool, in particular to a numerical control gear grinding machine tool.
  • a traditional CNC gear machine tool consists of a body 1, a tool axis C axis 2, a tool mounting box 3, a first sliding table 4, a workpiece axis A axis 5, a workpiece mounting box 6, a second sliding table 7 and other components assembled.
  • the machine body 1 includes a machine base 11 and an eccentric gantry 12 located above the machine base.
  • the front of the eccentric gantry 12 forms a first vertical side ⁇ , which is used to install the tool axis C axis 2.
  • the rear extension expands the inner side to form a second vertical side surface ⁇ for mounting the workpiece axis A axis 5 , and the second vertical side surface ⁇ is substantially perpendicular to the first vertical side surface ⁇ in the middle.
  • the first vertical side ⁇ of the eccentric gantry 12 is provided with a first linear guide 13 along the first direction (ie, the X direction). Driven by the first motor 14 and the screw mechanism, it can move back and forth in the X direction.
  • the tool shaft C axis 2 is installed on the lower end of the tool installation box 3 and can rotate around the axis C.
  • the tool installation box 3 is installed on the first sliding table through bearings. 4. Inside the first sliding table 4 is installed a second motor (not shown in the figure) that can drive the tool mounting box 3 to rotate around the vertical axis.
  • the first vertical side surface ⁇ is provided with a groove at a position corresponding to the first motor 14 to accommodate part of the volume of the first motor 14 and reduce the lateral height of the screw mechanism.
  • the second vertical side ⁇ of the eccentric gantry 12 is provided with a second linear guide 15 along the second direction (ie the Y direction);
  • the second sliding table 7 moves in the direction, the second sliding table 7 is provided with a third linear guide rail 17 along the third direction (ie the Z direction), and the third linear guide rail 17 is equipped with a fourth motor 18 and a lead screw mechanism to drive
  • the lower part of the workpiece mounting box 6 moving in the third direction, the workpiece axis A axis 5 is mounted on the front end of the workpiece mounting box 6 and can rotate around the axis A.
  • the beam of the eccentric gantry 12 also extends a certain distance back, but its extension length is shorter than that of the wider column. 4) a groove for accommodating the third motor 16 is provided, and the lead screw driven by the third motor 16 passes through the beam from the bottom of the groove and cooperates with the nut part.
  • the numerical control gear machine tool with the above structure has better static rigidity and dynamic rigidity.
  • the first sliding table 4 is installed on the first linear guide rail 13 on the first vertical side ⁇ , and the overall weight of the first sliding table 4 and the tool mounting box 3 is carried on the first vertical side ⁇ .
  • the requirements for the first linear guide 13 and the corresponding drive are high, which leads to an increase in production cost.
  • the second sliding table 7 is installed on the second linear guide rail 15 on the second vertical side ⁇ , and the second vertical side ⁇ faces another column of the eccentric gantry 12, so the production and assembly of the second sliding table 7 is difficult.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a CNC gear grinding machine tool with stable transmission, low cost and convenient assembly.
  • the numerical control gear grinding machine tool of the embodiment of the present invention it comprises:
  • a bed the bed is provided with a first vertical beam, a second vertical beam and a beam erected on the first vertical beam and the second vertical beam, and a plurality of beams extending along the horizontal X-axis direction are arranged on the horizontal beam
  • the X-axis guide rail, at least one of the X-axis guide rail is distributed on the horizontal plane on the beam;
  • the first mounting seat is slidably arranged on the X-axis guide rail;
  • the grinding wheel box is rotatably arranged on the first mounting seat around the vertical axis of rotation B;
  • the C-axis of the grinding wheel main shaft is arranged in the grinding wheel box along the direction perpendicular to the B-axis of the rotation axis;
  • a second mounting seat is disposed on the side of the first vertical beam close to the second vertical beam so as to move along the vertical Y-axis direction;
  • the workpiece box is arranged on the second mounting seat so as to move along the horizontal Z-axis direction;
  • the A-axis of the workpiece spindle is arranged in the workpiece box along the direction parallel to the Z-axis.
  • X, Y, Z movement adjustment can be realized between the A axis of the workpiece spindle and the C axis of the grinding wheel spindle, and the angle adjustment between the two can be realized through the B axis of the rotary axis. It can realize the processing functions of traditional machine tools.
  • the X-axis guide rail for installing the first mounting seat is located on the horizontal plane of the beam, which can effectively reduce the strength requirements of the X-axis guide rail compared with the traditional machine tool structure, which is beneficial to reduce the production cost. , improve transmission stability.
  • at least one X-axis guide rail is arranged on the horizontal plane of the beam, which is also beneficial to improve the assembly efficiency of the first mounting seat.
  • the beam is provided with a first step, and the X-axis guide rail is provided on two end faces of the first step.
  • the first mounting seat is located on the side of the beam, and the first mounting seat has a convex portion adapted to the first step.
  • the first vertical beam is provided with a Y-axis guide rail on the side close to the second vertical beam and the side adjacent thereto, and the second mounting seat is slidably arranged on the Y-axis on the rail.
  • a side surface of the first vertical beam close to the second vertical beam is provided with a second step extending along the Y-axis direction at one end of the grinding wheel box, and the Y-axis guide rail is provided on both end faces of the second step.
  • the Y-axis guide rail disposed on the end face of the second step close to the second vertical beam is located at the edge of the area of the second vertical beam facing the second step Or the second vertical beam is facing the outer side of the area of the second step.
  • the first mounting seat is provided with a first escaping cavity
  • the grinding wheel case is partially fitted into the first escaping cavity
  • the second mounting seat is provided with a second escaping cavity.
  • the first mounting seat and the second mounting seat are respectively provided with a reinforcing structure corresponding to the first recess cavity and the second recess.
  • a grinding wheel dresser is provided on the workpiece box.
  • Fig. 1 is the first structural representation of the present invention
  • Fig. 2 is the second structure schematic diagram of the present invention.
  • Fig. 3 is the third structural representation of the present invention.
  • FIG. 4 is a schematic diagram of a conventional structure.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • the present invention proposes a CNC gear grinding machine tool, which includes:
  • the bed 100 the bed 100 is provided with a first vertical beam 101, a second vertical beam 103, and a beam 102 erected on the first vertical beam 101 and the second vertical beam 103, and the beam 102 is provided with a plurality of lines along the horizontal X axis X-axis guide rails 106 extending in the direction, at least one X-axis guide rail 106 is distributed on the horizontal plane on the beam 102;
  • the first mounting seat 200 is slidably arranged on the X-axis guide rail 106;
  • the grinding wheel box 201 is rotatably arranged on the first mounting seat 200 around the vertical axis of rotation B;
  • the C axis of the grinding wheel main shaft is arranged in the grinding wheel box 201 along the direction perpendicular to the B axis of the rotation axis;
  • the second mounting seat 301 is disposed on the side of the first vertical beam 101 close to the second vertical beam 103 so as to move along the vertical Y-axis direction;
  • the workpiece box 300 is disposed on the second mounting seat 301 so as to move along the horizontal Z-axis direction;
  • the A-axis of the workpiece spindle is disposed in the workpiece box 300 along a direction parallel to the Z-axis.
  • X, Y, Z movement adjustment can be realized between the A axis of the workpiece spindle and the C axis of the grinding wheel spindle, and the angle adjustment between the two can be realized through the B axis of the rotary axis. It can realize the processing functions of traditional machine tools.
  • the X-axis guide rail 106 for installing the first mounting seat 200 is located on the horizontal plane of the beam 102, which can effectively reduce the strength requirements of the X-axis guide rail 106 compared with the traditional machine tool structure. Conducive to reducing production costs and improving transmission stability.
  • disposing at least one X-axis guide rail 106 on the horizontal plane of the beam 102 is also beneficial to improve the assembly efficiency of the first mounting seat 200 .
  • a first step 104 is formed on one side of the upper end surface of the beam 102 , and the X-axis guide rail 106 is disposed on the upper end surface and the outer side of the first step 104 .
  • the first mounting seat 200 is located on the side of the beam 102 , and the first mounting seat 200 has a convex portion that is adapted to the first step 104 .
  • the first step 104 formed by the depression can reduce the overall height of the first mounting seat 200 installed on the beam 102, which is beneficial to improve the integrity of the machine tool, and can achieve weight reduction to a certain extent.
  • the subsidence depth of the first step 104 can be set according to the actual size of the beam 102 , and can be flexibly set on the premise of ensuring the strength and stiffness requirements of the beam 102 , which will not be described in detail here.
  • the first vertical beam 101 is provided with the Y-axis guide rail 107 on the side close to the second vertical beam 103 and the side adjacent thereto, and the second mounting seat 301 is slidably arranged on the Y-axis guide rail 107 . Since the side of the first vertical beam 101 close to the second vertical beam 103 is blocked by the second vertical beam 103 , if all the Y-axis guide rails 107 are arranged on the side, it will inevitably be affected by the blocking by the second vertical beam 103 .
  • the side adjacent to the second vertical beam 103 facing the second vertical beam 103 may be either the side of the first vertical beam 101 close to the grinding wheel box 201 or the side far away from the grinding wheel box 201 .
  • a side surface of the first vertical beam 101 close to the second vertical beam 103 is provided with a second step 105 extending in the Y-axis direction at one end of the first vertical beam 101 near the grinding wheel box 201, and a Y-axis guide rail 107 is formed. It is disposed on the end face of the second step 105 facing the grinding wheel box 201 and the end face facing the second vertical beam 103 .
  • the structure design of the CNC gear grinding machine tool in this embodiment is to form the second step 105 by indentation, compared with the structure design of directly disposing the Y-axis guide rail 107 on the side of the first vertical beam 101 close to the grinding wheel box 201, The latter needs to extend the first mounting seat 200 to the outside to ensure that sufficient space is reserved between the grinding wheel box 201 and the first vertical beam 101 along the Z-axis direction, so that the first mounting seat 200 and the grinding wheel box 201 are relatively opposite to each other.
  • the overall moment of the beam 102 is large, and the former can effectively shorten the distance from the grinding wheel spindle C axis to the end face of the beam 102, thereby reducing the moment and improving the stability and accuracy of the transmission of the grinding wheel box 201 and the first mounting seat 200.
  • the Y-axis guide rail 107 disposed on the end surface of the second step 105 close to the second vertical beam 103 is located on the side of the second vertical beam 103 facing the second step 105
  • the edge of the area or the second vertical beam 103 is facing the outside of the area of the second step 105 .
  • the setting of the above position can also be used to weaken or eliminate the influence of the second vertical beam 103 .
  • the first mounting seat 200 is provided with a first recess cavity
  • the grinding wheel case 201 is partially fitted into the first recess cavity
  • the second mounting seat 301 is provided with a second recess cavity
  • the workpiece box 300 is partially allocated into the second recess cavity.
  • the first mounting seat 200 and the second mounting seat 301 are respectively provided with reinforcing structures corresponding to the first and second abdicating cavity.
  • the reinforcing structure can be arranged in the first and second escaping concave cavities, and can also be arranged outside the first and second escrow cavities.
  • the reinforcing structure may be a structure such as a reinforcing rib, a reinforcing rib, etc., which is not specifically limited here.
  • the numerical control gear grinding machine tool in this embodiment can effectively improve the structural strength of the first mounting seat 200 and the second mounting seat 301 by strengthening the structure, thereby helping to ensure transmission stability, and also improving the bearing processing capacity of the machine tool.
  • the workpiece box 300 is provided with a grinding wheel dresser, and the grinding wheel dresser is used for dressing the grinding wheel.
  • the rotation axis of the grinding wheel dresser is arranged parallel to the A axis of the workpiece spindle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)

Abstract

La présente invention concerne une machine-outil de rectification d'engrenages à commande numérique, comprenant un corps de lit (100), une première base de montage (200), un corps de boîte de meule (201), un arbre principal de meule C, une seconde base de montage (301), un corps de boîte à pièce à usiner (300) et un arbre principal de pièce à usiner A. Un réglage de mouvement d'axe X, d'axe Y et d'axe Z peut être obtenu entre l'arbre principal de pièce à usiner A et l'arbre principal de meule C de la machine-outil de rectification d'engrenages à commande numérique, le réglage d'angle entre l'arbre principal de pièce à usiner A et l'arbre principal de meule C peut être obtenu au moyen d'un arbre rotatif B, la fonction d'usinage d'une machine-outil classique peut être obtenue, et au moins un rail de guidage d'axe X est disposé sur une face horizontale d'une traverse, de telle sorte que les exigences de résistance, etc. du rail de guidage d'axe X peuvent être efficacement réduites, ce qui permet de réduire le coût de production et d'améliorer la stabilité de transmission, et permet également d'améliorer l'efficacité d'assemblage de la première base de montage.
PCT/CN2020/115936 2020-07-29 2020-09-17 Machine-outil de rectification d'engrenages à commande numérique WO2022021579A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010741604.7A CN111975120A (zh) 2020-07-29 2020-07-29 一种数控磨齿加工机床
CN202010741604.7 2020-07-29

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WO2022021579A1 true WO2022021579A1 (fr) 2022-02-03

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WO (1) WO2022021579A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115008266B (zh) * 2022-08-05 2022-11-18 湖南中大创远数控装备有限公司 一种工具磨床

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200603936A (en) * 2004-07-28 2006-02-01 Yeong Chin Machinery Ind Co Ltd Three-rail-type beam structure for portal integrated processing device
DE102013001797A1 (de) * 2013-02-01 2014-08-07 Liebherr-Verzahntechnik Gmbh Verzahnungsschleifmaschine mit Abrichtvorrichtung und Verfahren zum Abrichten eines Schleifwerkzeugs mittels der Abrichtvorrichtung
CN203830852U (zh) * 2014-05-23 2014-09-17 湖南中大创远数控装备有限公司 一种数控齿轮机床
CN105081476A (zh) * 2014-05-23 2015-11-25 湖南中大创远数控装备有限公司 一种数控齿轮机床
CN206286663U (zh) * 2016-10-27 2017-06-30 哈尔滨量具刃具集团有限责任公司 数控螺旋锥齿轮磨齿机床
CN108555399A (zh) * 2018-06-26 2018-09-21 湖南中大创远数控装备有限公司 一种齿轮加工机床
CN210677199U (zh) * 2019-07-01 2020-06-05 湖南中大创远数控装备有限公司 一种磨齿机
CN211102703U (zh) * 2019-10-18 2020-07-28 广东艾普升智能装备有限公司 一种龙门铣床

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200603936A (en) * 2004-07-28 2006-02-01 Yeong Chin Machinery Ind Co Ltd Three-rail-type beam structure for portal integrated processing device
DE102013001797A1 (de) * 2013-02-01 2014-08-07 Liebherr-Verzahntechnik Gmbh Verzahnungsschleifmaschine mit Abrichtvorrichtung und Verfahren zum Abrichten eines Schleifwerkzeugs mittels der Abrichtvorrichtung
CN203830852U (zh) * 2014-05-23 2014-09-17 湖南中大创远数控装备有限公司 一种数控齿轮机床
CN105081476A (zh) * 2014-05-23 2015-11-25 湖南中大创远数控装备有限公司 一种数控齿轮机床
CN206286663U (zh) * 2016-10-27 2017-06-30 哈尔滨量具刃具集团有限责任公司 数控螺旋锥齿轮磨齿机床
CN108555399A (zh) * 2018-06-26 2018-09-21 湖南中大创远数控装备有限公司 一种齿轮加工机床
CN210677199U (zh) * 2019-07-01 2020-06-05 湖南中大创远数控装备有限公司 一种磨齿机
CN211102703U (zh) * 2019-10-18 2020-07-28 广东艾普升智能装备有限公司 一种龙门铣床

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