CN118123497A - A CNC drilling and tapping machine tool with multi-axis independent feeding - Google Patents

A CNC drilling and tapping machine tool with multi-axis independent feeding Download PDF

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Publication number
CN118123497A
CN118123497A CN202410324460.3A CN202410324460A CN118123497A CN 118123497 A CN118123497 A CN 118123497A CN 202410324460 A CN202410324460 A CN 202410324460A CN 118123497 A CN118123497 A CN 118123497A
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drilling
tapping
feeding
seat
sleeve
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石荣资
张云峰
唐磊
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Zhuji Wensu Intelligent Equipment Co ltd
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Zhuji Wensu Intelligent Equipment Co ltd
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Priority to CN202410324460.3A priority Critical patent/CN118123497A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • B23P23/02—Machine tools for performing different machining operations
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/28—Electric drives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention relates to a multi-axis independent feeding numerical control drilling and tapping machine tool, which comprises a base, wherein the rear end of the base is fixedly connected with a stand column, a drilling and tapping machine head is fixedly sleeved on the upper portion of the stand column, the drilling and tapping machine head comprises a machine head seat, the machine head seat comprises a middle bearing seat, a front feeding seat and a rear clamping seat, a plurality of feeding grooves which are transversely arranged are formed in the front end face of the feeding seat, vertical drilling and tapping feeding components are respectively inserted in the feeding grooves, and a feeding driving component and a drilling and tapping driving component which are opposite to the drilling and tapping feeding components are respectively arranged on the upper end faces of the feeding seat and the bearing seat. The numerical control drilling and tapping machine tool is provided with a plurality of groups of processing shafts capable of being fed independently, the processing shafts based on independent feeding can realize multi-hole simultaneous processing, the processing shafts comprise hole sites with different heights and the same height, independent processing of single holes can be realized, and the influence of adjacent processing shafts can be avoided.

Description

一种多轴独立进给的数控钻攻机床A CNC drilling and tapping machine tool with multi-axis independent feeding

技术领域：Technical field:

本发明涉及数控钻攻机床的技术领域，更具体地说涉及一种多轴独立进给的数控钻攻机床。The invention relates to the technical field of numerically controlled drilling and tapping machine tools, and more specifically to a numerically controlled drilling and tapping machine tool with multi-axis independent feeding.

背景技术：Background technique:

多轴数控钻攻机床俗称多轴器、多孔钻或多轴钻孔器，是一种运用于机械领域钻孔、攻牙的机床设备，可用来钻孔或攻牙。目前的多轴数控钻攻机床上的多根钻攻主轴一般都是同时进给的，即可以在同一工件同时进行钻孔或攻丝；但其钻孔的深度或攻丝的长度都是一致的，但在对一些台阶结构的工件进行钻孔时，因为其钻孔孔位在高度不一致的台阶面上，进而同时进给结构的多轴数控钻攻机床就无法实现其同时钻孔或攻丝；而且有些工件上存在间距较近的孔位，而多轴数控钻攻机床上进给轴之间的间距大于孔位之间的间距，进而无法实现采用多轴数控钻攻机床进行钻孔，进而有人提出是否可以设计一款多轴但每根轴都可以进行独立进给的多轴数控钻攻机床，进而可以实现不同高度孔位的同时加工，而且还可以实现采用独立单轴多次加工间距过近的孔位。Multi-axis CNC drilling and tapping machine tools are commonly known as multi-axis devices, multi-hole drills or multi-axis drills. They are a type of machine tool equipment used in the field of machinery for drilling and tapping. At present, the multiple drilling and tapping spindles on the multi-axis CNC drilling and tapping machine tools are generally fed simultaneously, that is, the same workpiece can be drilled or tapped at the same time; but the depth of the drilling or the length of the tapping are consistent, but when drilling some workpieces with step structures, because the drilling holes are on the step surfaces with inconsistent heights, the multi-axis CNC drilling and tapping machine tools with simultaneous feeding structures cannot achieve simultaneous drilling or tapping; and some workpieces have holes with close spacing, and the spacing between the feed axes on the multi-axis CNC drilling and tapping machine tools is greater than the spacing between the holes, so it is impossible to use the multi-axis CNC drilling and tapping machine tools for drilling. Some people have proposed whether it is possible to design a multi-axis CNC drilling and tapping machine tool with multiple axes but each axis can be fed independently, so that different height holes can be processed simultaneously, and holes with close spacing can be processed multiple times using independent single axes.

发明内容：Summary of the invention:

本发明的目的就是针对现有技术之不足，而提供了一种多轴独立进给的数控钻攻机床，其数控钻攻机床上设有多组可以独立进给的加工轴，基于独立进给的加工轴可以实现多孔的同时加工以及单孔的独立加工。The purpose of the present invention is to address the deficiencies of the prior art and to provide a multi-axis independently fed CNC drilling and tapping machine tool, which is provided with multiple groups of machining axes that can be fed independently. The independently fed machining axes can realize simultaneous machining of multiple holes and independent machining of a single hole.

一种多轴独立进给的数控钻攻机床，包括底座，底座的后端固定连接有立柱，立柱的上部插套固定有钻攻机头，钻攻机头上套设有防护罩，钻攻机头包括机头座，机头座包括中部的承接座、前部的进给座和后部的夹持座，进给座的前端面上成型有若干横向排列的进给槽，进给槽内分别插设有竖向的钻攻进给组件，进给座和承接座的上端面上分别设置有与钻攻进给组件相对的进给驱动组件和钻攻驱动组件；A multi-axis independently fed CNC drilling and tapping machine tool comprises a base, a column is fixedly connected to the rear end of the base, a drilling and tapping machine head is fixed to the upper sleeve of the column, a protective cover is mounted on the drilling and tapping machine head, the drilling and tapping machine head comprises a machine head seat, the machine head seat comprises a receiving seat in the middle, a feeding seat in the front and a clamping seat in the rear, a plurality of feed grooves arranged laterally are formed on the front end surface of the feed seat, vertical drilling and tapping feed assemblies are respectively inserted in the feed grooves, and a feed drive assembly and a drilling and tapping drive assembly opposite to the drilling and tapping feed assembly are respectively arranged on the upper end surfaces of the feed seat and the receiving seat;

钻攻进给组件包括竖向的进给筒套，进给筒套内插设有竖向的旋转主轴，旋转主轴的下端成型有钻夹套，钻夹套内插设有钻夹头，所述进给筒套的下端伸出机头座的下端面成型有连接套，钻夹套通过轴承连接在进给筒套的连接套内；进给筒套的上端固接有纵向的联动座，联动座的前端插接固定有滚珠螺母，滚珠螺母上螺接有竖向的滚珠丝杠，滚珠丝杠的上、下端分别通过轴承连接在机头座上，滚珠丝杠的上端伸出机头座成型有竖向的支轴；所述钻攻进给组件上旋转主轴的上端成型有竖向的花键轴，花键轴伸出机头座插套有竖向的花键连接套，花键连接套的下部通过轴承连接在机头座上；The drilling and tapping feed assembly comprises a vertical feed sleeve, a vertical rotating main shaft is inserted in the feed sleeve, a drill sleeve is formed at the lower end of the rotating main shaft, a drill chuck is inserted in the drill sleeve, the lower end of the feed sleeve extends out of the lower end surface of the machine head seat and is formed with a connecting sleeve, and the drill sleeve is connected to the connecting sleeve of the feed sleeve through a bearing; the upper end of the feed sleeve is fixedly connected with a longitudinal linkage seat, the front end of the linkage seat is plugged and fixed with a ball nut, a vertical ball screw is screwed on the ball nut, the upper and lower ends of the ball screw are respectively connected to the machine head seat through bearings, and the upper end of the ball screw extends out of the machine head seat to form a vertical support shaft; the upper end of the rotating main shaft on the drilling and tapping feed assembly is formed with a vertical spline shaft, the spline shaft extends out of the machine head seat and is inserted with a vertical spline connecting sleeve, and the lower part of the spline connecting sleeve is connected to the machine head seat through a bearing;

进给驱动组件包括若干固定在进给座上的筒座，筒座的上端固定连接有竖向的进给电机，进给电机的转轴和滚珠丝杠上端的支轴分别插在筒座内并通过联轴器相固接在一起；The feed drive assembly includes a plurality of cartridge seats fixed on the feed seat, the upper end of the cartridge seat is fixedly connected with a vertical feed motor, the rotating shaft of the feed motor and the support shaft at the upper end of the ball screw are respectively inserted into the cartridge seat and fixedly connected together through a coupling;

钻攻驱动组件包括固定在承接座上呈“冂”字形的电机支座，电机支座上固接有竖向的钻攻电机，钻攻电机的转轴上插套固接有主动带轮，主动带轮通过第一传动带连接有第一传动带轮；所述的钻攻进给组件的花键连接套上分别插套有第一传动带轮或第二传动带轮，相邻的第二传动带轮之间套设有第二传动带；所述钻攻机头上相邻的旋转主轴之间通过第一传动带轮或第二传动带传动连接。The drilling and tapping drive assembly includes a motor support in the shape of a Chinese character "冂" fixed on a receiving seat, a vertical drilling and tapping motor is fixedly connected to the motor support, a driving pulley is fixedly connected to a sleeve on the rotating shaft of the drilling and tapping motor, and the driving pulley is connected to the first transmission pulley through a first transmission belt; the first transmission pulley or the second transmission pulley is respectively sleeved on the spline connecting sleeve of the drilling and tapping feed assembly, and a second transmission belt is sleeved between adjacent second transmission pulleys; adjacent rotating spindles on the drilling and tapping machine head are connected through the first transmission pulley or the second transmission belt.

优选的，所述钻攻机头上的钻攻进给组件设有三组，钻攻驱动组件上的主动带轮设有两个，主动带轮分别插套固定在钻攻机头左侧相邻的花键连接套上；Preferably, the drilling and tapping feed assembly on the drilling and tapping head is provided with three groups, and the drilling and tapping drive assembly is provided with two active pulleys, which are respectively inserted and fixed on the adjacent spline connection sleeves on the left side of the drilling and tapping head;

所述的第二传动带轮设有两个，第二传动带轮分别插套固定在钻攻机头右侧相邻的花键连接套上。There are two second transmission belt wheels, which are respectively inserted and fixed on the adjacent spline connection sleeves on the right side of the drilling and tapping machine head.

优选的，所述钻攻进给组件上进给筒套的中心轴线、旋转主轴的中心轴线和花键连接套的中心轴线相重合；所述钻夹套的上端成型有贯穿钻夹套两侧相对外壁的退刀孔，所述的进给筒套下端两侧的外壁上成型有与退刀孔相对的插槽。Preferably, the central axis of the feed sleeve on the drilling and tapping feed assembly, the central axis of the rotating spindle and the central axis of the spline connecting sleeve coincide with each other; the upper end of the drill sleeve is formed with a tool withdrawal hole penetrating the opposite outer walls on both sides of the drill sleeve, and the outer walls on both sides of the lower end of the feed sleeve are formed with slots opposite to the tool withdrawal hole.

优选的，所述连接套上侧的内壁插设有挡圈，挡圈抵靠在轴承外圈的下端上；Preferably, a retaining ring is inserted into the inner wall of the upper side of the connecting sleeve, and the retaining ring abuts against the lower end of the outer ring of the bearing;

所述钻夹套下部的外壁上成型有挡环，挡环上插套并抵靠有截面呈L型的套圈，套圈的上端面抵靠在轴承外圈的下端面，套圈的下端面上抵靠有压环，压环螺接在连接套下端的内壁上。A retaining ring is formed on the outer wall of the lower part of the drill sleeve, and a ferrule with an L-shaped cross-section is inserted into and abutted against the retaining ring. The upper end face of the ferrule abuts against the lower end face of the bearing outer ring, and a pressure ring abuts against the lower end face of the ferrule, which is screwed on the inner wall of the lower end of the connecting sleeve.

优选的，所述钻攻驱动组件上的第一传动带和第二传动带的外壁上分别抵靠有张紧轮，张紧轮上铰接有张紧支架，张紧支架固接在机头座上。Preferably, outer walls of the first transmission belt and the second transmission belt on the drilling and tapping drive assembly are respectively abutted against tensioning wheels, a tensioning bracket is hinged on the tensioning wheel, and the tensioning bracket is fixed to the machine head seat.

优选的，所述机头座的夹持座上成型有竖向圆形的夹持孔，夹持孔后侧的内壁上成型有贯穿夹持座后端面的切槽，切槽一侧的夹持座上插接有若干夹持螺栓，夹持螺栓的末端螺接在切槽另一侧的夹持座上；所述的立柱插设在机头座的夹持孔内，夹持孔的内壁压持在立柱上；所述夹持座两侧的外侧壁上成型有纵向的耳座。Preferably, a vertical circular clamping hole is formed on the clamping seat of the machine head seat, a groove penetrating the rear end surface of the clamping seat is formed on the inner wall on the rear side of the clamping hole, a plurality of clamping bolts are inserted into the clamping seat on one side of the groove, and the ends of the clamping bolts are screwed onto the clamping seat on the other side of the groove; the column is inserted into the clamping hole of the machine head seat, and the inner wall of the clamping hole is pressed on the column; longitudinal ear seats are formed on the outer walls on both sides of the clamping seat.

优选的，所述钻攻进给组件正下方的底座上成型有矩形的工件装夹台，工件装夹台的四周成型有环形的沟槽；所述的工件装夹台上成型有若干道横向的T型槽。Preferably, a rectangular workpiece clamping platform is formed on the base directly below the drilling and tapping feed assembly, and an annular groove is formed around the workpiece clamping platform; and a plurality of transverse T-slots are formed on the workpiece clamping platform.

本发明的有益效果在于：The beneficial effects of the present invention are:

本数控钻攻机床上设有多组可以独立进给的加工轴，基于独立进给的加工轴可以实现多孔的同时加工，包括不同高度和同一高度的孔位，还有可以实现单孔的独立加工，不会受相邻的加工轴的影响。This CNC drilling and tapping machine is equipped with multiple groups of machining axes that can be fed independently. Based on the independent feeding of the machining axes, multiple holes can be processed simultaneously, including holes of different heights and the same height. It can also realize independent processing of a single hole without being affected by adjacent machining axes.

附图说明：Description of the drawings:

图1为本发明立体的结构示意图；FIG1 is a schematic diagram of a three-dimensional structure of the present invention;

图2为本发明侧视的结构示意图；FIG2 is a schematic diagram of the structure of the present invention from a side view;

图3为本发明内钻攻机头的立体结构示意图；FIG3 is a schematic diagram of the three-dimensional structure of the internal drilling and tapping head of the present invention;

图4为本发明内钻攻机头的正视结构示意图；FIG4 is a front view of the structure of the internal drilling and tapping head of the present invention;

图5为本发明内钻攻机头的俯视结构示意图；FIG5 is a schematic diagram of the top view of the internal drilling and tapping head of the present invention;

图6为本发明钻攻机头内钻攻进给组件的立体结构示意图；FIG6 is a schematic diagram of the three-dimensional structure of the drilling and tapping feed assembly in the drilling and tapping head of the present invention;

图7为本发明钻攻机头内钻攻进给组件的剖视示意图。FIG. 7 is a schematic cross-sectional view of the drilling and tapping feed assembly in the drilling and tapping head of the present invention.

图中：1、底座；2、立柱；3、钻攻机头；31、机头座；32、钻攻进给组件；33、钻攻驱动组件；34、进给驱动组件；35、夹持螺栓；36、张紧轮；37、张紧支架；4、防护罩；41、壳罩；42、机玻璃盖板。In the figure: 1. base; 2. column; 3. drilling and tapping head; 31. head seat; 32. drilling and tapping feed assembly; 33. drilling and tapping drive assembly; 34. feed drive assembly; 35. clamping bolt; 36. tensioning wheel; 37. tensioning bracket; 4. protective cover; 41. shell cover; 42. organic glass cover.

具体实施方式：Detailed ways:

实施例：见图1至7所示，一种多轴独立进给的数控钻攻机床，包括底座1，底座1的后端固定连接有立柱2，立柱2的上部插套固定有钻攻机头3，钻攻机头3上套设有防护罩4，钻攻机头3包括机头座31，机头座31包括中部的承接座311、前部的进给座312和后部的夹持座313，进给座312的前端面上成型有若干横向排列的进给槽314，进给槽314内分别插设有竖向的钻攻进给组件32，进给座312和承接座311的上端面上分别设置有与钻攻进给组件32相对的进给驱动组件34和钻攻驱动组件33；Embodiment: As shown in Figures 1 to 7, a multi-axis independently fed CNC drilling and tapping machine tool comprises a base 1, a column 2 is fixedly connected to the rear end of the base 1, a drilling and tapping head 3 is fixed to the upper sleeve of the column 2, a protective cover 4 is sleeved on the drilling and tapping head 3, the drilling and tapping head 3 comprises a head seat 31, the head seat 31 comprises a receiving seat 311 in the middle, a feed seat 312 in the front and a clamping seat 313 in the rear, a front end surface of the feed seat 312 is formed with a plurality of transversely arranged feed grooves 314, vertical drilling and tapping feed assemblies 32 are respectively inserted in the feed grooves 314, and a feed drive assembly 34 and a drilling and tapping drive assembly 33 opposite to the drilling and tapping feed assembly 32 are respectively arranged on the upper end surfaces of the feed seat 312 and the receiving seat 311;

钻攻进给组件32包括竖向的进给筒套321，进给筒套321内插设有竖向的旋转主轴322，旋转主轴322的下端成型有钻夹套3221，钻夹套3221内插设有钻夹头323，所述进给筒套321的下端伸出机头座31的下端面成型有连接套3211，钻夹套3221通过轴承连接在进给筒套321的连接套3211内；进给筒套321的上端固接有纵向的联动座325，联动座325的前端插接固定有滚珠螺母326，滚珠螺母326上螺接有竖向的滚珠丝杠327，滚珠丝杠327的上、下端分别通过轴承连接在机头座31上，滚珠丝杠327的上端伸出机头座31成型有竖向的支轴3271；所述钻攻进给组件32上旋转主轴322的上端成型有竖向的花键轴3222，花键轴3222伸出机头座31插套有竖向的花键连接套328，花键连接套328的下部通过轴承连接在机头座31上；The drilling and tapping feed assembly 32 includes a vertical feed sleeve 321, a vertical rotating spindle 322 is inserted into the feed sleeve 321, a drill chuck 323 is inserted into the drill chuck 3221 at the lower end of the rotating spindle 322, and a connecting sleeve 3211 is formed on the lower end surface of the feed sleeve 321 extending out of the head seat 31, and the drill chuck 3221 is connected to the connecting sleeve 3211 of the feed sleeve 321 through a bearing; a longitudinal linkage seat 325 is fixedly connected to the upper end of the feed sleeve 321, and a front end of the linkage seat 325 is inserted into the front end of the linkage seat 325. A ball nut 326 is fixed to the drill bit 326, a vertical ball screw 327 is screwed on the ball nut 326, the upper and lower ends of the ball screw 327 are connected to the machine head seat 31 through bearings respectively, and the upper end of the ball screw 327 extends out of the machine head seat 31 to form a vertical support shaft 3271; the upper end of the rotating main shaft 322 on the drilling and tapping feed assembly 32 is formed with a vertical spline shaft 3222, the spline shaft 3222 extends out of the machine head seat 31 and is inserted with a vertical spline connection sleeve 328, and the lower part of the spline connection sleeve 328 is connected to the machine head seat 31 through a bearing;

进给驱动组件34包括若干固定在进给座312上的筒座342，筒座342的上端固定连接有竖向的进给电机341，进给电机341的转轴和滚珠丝杠327上端的支轴3271分别插在筒座342内并通过联轴器相固接在一起；The feed drive assembly 34 includes a plurality of cartridge seats 342 fixed on the feed seat 312, the upper end of the cartridge seat 342 is fixedly connected with a vertical feed motor 341, the rotating shaft of the feed motor 341 and the support shaft 3271 at the upper end of the ball screw 327 are respectively inserted into the cartridge seat 342 and fixedly connected together through a coupling;

钻攻驱动组件33包括固定在承接座311上呈“冂”字形的电机支座331，电机支座331上固接有竖向的钻攻电机332，钻攻电机332的转轴上插套固接有主动带轮333，主动带轮333通过第一传动带334连接有第一传动带轮335；所述的钻攻进给组件32的花键连接套328上分别插套有第一传动带轮335或第二传动带轮336，相邻的第二传动带轮336之间套设有第二传动带337；所述钻攻机头3上相邻的旋转主轴322之间通过第一传动带轮335或第二传动带337传动连接；The drilling and tapping drive assembly 33 includes a motor support 331 in the shape of a Chinese character "冂" fixed on the receiving seat 311, a vertical drilling and tapping motor 332 is fixedly connected to the motor support 331, a driving pulley 333 is fixedly connected to the rotating shaft of the drilling and tapping motor 332, and the driving pulley 333 is connected to the first driving pulley 335 through the first transmission belt 334; the spline connection sleeve 328 of the drilling and tapping feed assembly 32 is respectively inserted with the first transmission pulley 335 or the second transmission pulley 336, and a second transmission belt 337 is sleeved between adjacent second transmission pulleys 336; the adjacent rotating spindles 322 on the drilling and tapping head 3 are connected through the first transmission pulley 335 or the second transmission belt 337;

所述的钻攻电机332和进给电机341均采用伺服电机。The drilling motor 332 and the feeding motor 341 are both servo motors.

所述钻攻机头3上的钻攻进给组件32设有三组，钻攻驱动组件33上的主动带轮333设有两个，主动带轮333分别插套固定在钻攻机头3左侧相邻的花键连接套328上；The drilling and tapping feed assembly 32 on the drilling and tapping head 3 is provided with three groups, and the drilling and tapping drive assembly 33 is provided with two active pulleys 333, which are respectively inserted and fixed on the adjacent spline connection sleeve 328 on the left side of the drilling and tapping head 3;

所述的第二传动带轮336设有两个，第二传动带轮336分别插套固定在钻攻机头3右侧相邻的花键连接套328上。There are two second transmission pulleys 336 , which are respectively inserted and fixed on the adjacent spline connection sleeves 328 on the right side of the drilling and tapping head 3 .

所述钻攻进给组件32上进给筒套321的中心轴线、旋转主轴322的中心轴线和花键连接套328的中心轴线相重合；所述钻夹套3221的上端成型有贯穿钻夹套3221两侧相对外壁的退刀孔3224，所述的进给筒套321下端两侧的外壁上成型有与退刀孔3224相对的插槽3212。The central axis of the feed sleeve 321 on the drilling and tapping feed assembly 32, the central axis of the rotating spindle 322 and the central axis of the spline connecting sleeve 328 coincide with each other; the upper end of the drill sleeve 3221 is formed with a tool withdrawal hole 3224 penetrating the opposite outer walls on both sides of the drill sleeve 3221, and the outer walls on both sides of the lower end of the feed sleeve 321 are formed with slots 3212 opposite to the tool withdrawal hole 3224.

所述连接套3211上侧的内壁插设有挡圈3310，挡圈3310抵靠在轴承外圈的下端上；A retaining ring 3310 is inserted into the inner wall of the upper side of the connecting sleeve 3211, and the retaining ring 3310 abuts against the lower end of the outer ring of the bearing;

所述钻夹套3221下部的外壁上成型有挡环3223，挡环3223上插套并抵靠有截面呈L型的套圈339，套圈339的上端面抵靠在轴承外圈的下端面，套圈339的下端面上抵靠有压环324，压环324螺接在连接套3211下端的内壁上。A retaining ring 3223 is formed on the outer wall of the lower part of the drill sleeve 3221, and a ring 339 with an L-shaped cross-section is inserted into and abutted against the retaining ring 3223. The upper end surface of the ring 339 abuts against the lower end surface of the bearing outer ring, and the lower end surface of the ring 339 abuts against a pressing ring 324, which is screwed onto the inner wall of the lower end of the connecting sleeve 3211.

所述钻攻驱动组件33上的第一传动带334和第二传动带337的外壁上分别抵靠有张紧轮36，张紧轮36上铰接有张紧支架37，张紧支架37固接在机头座31上。The outer walls of the first transmission belt 334 and the second transmission belt 337 on the drilling and tapping drive assembly 33 are respectively abutted against tensioning wheels 36 , and a tensioning bracket 37 is hinged on the tensioning wheel 36 , and the tensioning bracket 37 is fixed to the machine head base 31 .

所述机头座31的夹持座313上成型有竖向圆形的夹持孔315，夹持孔315后侧的内壁上成型有贯穿夹持座313后端面的切槽316，切槽316一侧的夹持座313上插接有若干夹持螺栓35，夹持螺栓35的末端螺接在切槽316另一侧的夹持座313上；所述的立柱2插设在机头座31的夹持孔315内，夹持孔315的内壁压持在立柱2上；所述夹持座313两侧的外侧壁上成型有纵向的耳座317。A vertical circular clamping hole 315 is formed on the clamping seat 313 of the machine head seat 31, and a groove 316 penetrating the rear end surface of the clamping seat 313 is formed on the inner wall of the rear side of the clamping hole 315. A plurality of clamping bolts 35 are inserted into the clamping seat 313 on one side of the groove 316, and the ends of the clamping bolts 35 are screwed onto the clamping seat 313 on the other side of the groove 316; the column 2 is inserted into the clamping hole 315 of the machine head seat 31, and the inner wall of the clamping hole 315 is pressed on the column 2; longitudinal ear seats 317 are formed on the outer side walls on both sides of the clamping seat 313.

所述钻攻进给组件32正下方的底座1上成型有矩形的工件装夹台11，工件装夹台11的四周成型有环形的沟槽13；所述的工件装夹台11上成型有若干道横向的T型槽12。A rectangular workpiece clamping platform 11 is formed on the base 1 directly below the drilling and tapping feed assembly 32 , and an annular groove 13 is formed around the workpiece clamping platform 11 ; a plurality of transverse T-shaped grooves 12 are formed on the workpiece clamping platform 11 .

所述的防护罩4包括设置在钻攻机头3前侧、上侧和左、右两侧的壳罩41，壳罩41的前侧设有与进给槽314相对的窗口，窗口处设有透明的有机玻璃盖板42，有机玻璃盖板固定在壳罩41上。The protective cover 4 includes a shell cover 41 arranged on the front side, upper side, left and right sides of the drilling and tapping head 3. The front side of the shell cover 41 is provided with a window opposite to the feed slot 314. A transparent organic glass cover plate 42 is provided at the window, and the organic glass cover plate is fixed on the shell cover 41.

工作原理：本发明为多轴独立进给的数控钻攻机床，其数控钻攻机床的结构如图1所示，但主要技术特征体现在钻攻机头3上，如图3所示；Working principle: The present invention is a CNC drilling and tapping machine tool with multi-axis independent feeding. The structure of the CNC drilling and tapping machine tool is shown in FIG1 , but the main technical features are reflected in the drilling and tapping machine head 3 , as shown in FIG3 ;

钻攻机头3的机头座31设有多组钻攻进给组件32，多组钻攻进给组件32分别设有多组可以实现其独立上、下移动(即独立进给)的进给驱动组件34，还设有可以实现其多组钻攻进给组件32上旋转主轴322同时转动的钻攻驱动组件33；The headstock 31 of the drilling and tapping head 3 is provided with a plurality of drilling and tapping feed assemblies 32, each of which is provided with a plurality of feed drive assemblies 34 capable of realizing independent upward and downward movement (i.e., independent feeding), and a drilling and tapping drive assembly 33 capable of realizing simultaneous rotation of the rotating spindles 322 on the plurality of drilling and tapping feed assemblies 32;

钻攻驱动组件33的动力来自钻攻电机332，通过带传动可以实现每组钻攻进给组件32内的旋转主轴322同时旋转；The power of the drilling and tapping drive assembly 33 comes from the drilling and tapping motor 332, and the rotating spindle 322 in each set of drilling and tapping feed assembly 32 can be rotated simultaneously through belt transmission;

而进给驱动组件34是基于进给电机341配合多组钻攻进给组件32上的滚珠丝杠327可以实现钻攻进给组件32上的进给筒套321独立升降，基于花键连接，进给筒套321可以带动旋转的旋转主轴322上、下移动；The feed drive assembly 34 is based on the feed motor 341 and the ball screws 327 on the multiple drilling feed assemblies 32, which can realize the independent lifting of the feed sleeve 321 on the drilling feed assembly 32. Based on the spline connection, the feed sleeve 321 can drive the rotating spindle 322 to move up and down;

从而每组钻攻进给组件32内的旋转主轴322的高度可以独立控制，就可以加工同一高度的孔位或不同高度的孔位；Thus, the height of the rotating spindle 322 in each drilling and tapping feed assembly 32 can be independently controlled, so that holes at the same height or holes at different heights can be processed;

而且每组钻攻进给组件32都是独立，不会受相邻的钻攻进给组件32的干涉，就可以单独加工钻孔；相比同时进给的多轴数控钻攻机床，功能更为完善。Moreover, each set of drilling and tapping feed components 32 is independent and will not be interfered by adjacent drilling and tapping feed components 32, so it can process drilling holes independently; compared with multi-axis CNC drilling and tapping machine tools that feed simultaneously, the function is more complete.

所述实施例用以例示性说明本发明，而非用于限制本发明。任何本领域技术人员均可在不违背本发明的精神及范畴下，对所述实施例进行修改，因此本发明的权利保护范围，应如本发明的权利要求所列。The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore, the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims (7)

1. The utility model provides a lathe is attacked in numerical control of multiaxis independent feed, includes base (1), the rear end fixedly connected with stand (2) of base (1), and the upper portion plug bush of stand (2) is fixed with and bores and attack aircraft nose (3), bores and attack the cover on aircraft nose (3) and be equipped with protection casing (4), bores and attacks aircraft nose (3) including headstock (31), headstock (31) including the holding seat (311) at middle part, feeding seat (312) at front portion and clamping seat (313) at rear portion, its characterized in that: a plurality of transversely arranged feeding grooves (314) are formed in the front end face of the feeding seat (312), vertical drilling and tapping components (32) are respectively inserted in the feeding grooves (314), and a feeding driving component (34) and a drilling and tapping driving component (33) which are opposite to the drilling and tapping components (32) are respectively arranged on the upper end faces of the feeding seat (312) and the bearing seat (311);
The drilling and tapping feeding assembly (32) comprises a vertical feeding barrel sleeve (321), a vertical rotating main shaft (322) is inserted in the feeding barrel sleeve (321), a drilling clamp sleeve (3221) is formed at the lower end of the rotating main shaft (322), a drilling clamp head (323) is inserted in the drilling clamp sleeve (3221), a connecting sleeve (3211) is formed at the lower end face of the feeding barrel sleeve (321) extending out of the headstock (31), and the drilling clamp sleeve (3221) is connected in the connecting sleeve (3211) of the feeding barrel sleeve (321) through a bearing; the upper end of the feeding cylinder sleeve (321) is fixedly connected with a longitudinal linkage seat (325), the front end of the linkage seat (325) is fixedly connected with a ball nut (326) in an inserting way, a vertical ball screw (327) is connected on the ball nut (326) in a threaded way, the upper end and the lower end of the ball screw (327) are respectively connected on the headstock (31) through bearings, and a vertical supporting shaft (3271) is formed by extending out of the headstock (31) from the upper end of the ball screw (327); the upper end of a rotary main shaft (322) on the drilling and tapping assembly (32) is provided with a vertical spline shaft (3222), the spline shaft (3222) extends out of the headstock (31) and is sleeved with a vertical spline connecting sleeve (328), and the lower part of the spline connecting sleeve (328) is connected to the headstock (31) through a bearing;
The feeding driving assembly (34) comprises a plurality of cylinder seats (342) fixed on the feeding seat (312), the upper ends of the cylinder seats (342) are fixedly connected with a vertical feeding motor (341), and a rotating shaft of the feeding motor (341) and a fulcrum (3271) at the upper end of the ball screw (327) are respectively inserted into the cylinder seats (342) and fixedly connected together through a coupler;
The drilling and tapping driving assembly (33) comprises a motor support (331) which is fixed on the bearing seat (311) and is in a 冂 shape, a vertical drilling and tapping motor (332) is fixedly connected on the motor support (331), a driving belt wheel (333) is fixedly connected on a rotating shaft of the drilling and tapping motor (332) in a sleeved mode, and the driving belt wheel (333) is connected with a first driving belt wheel (335) through a first driving belt (334); a first driving belt wheel (335) or a second driving belt wheel (336) is respectively inserted on the spline connecting sleeve (328) of the drilling and tapping assembly (32), and a second driving belt (337) is sleeved between the adjacent second driving belt wheels (336); adjacent rotary spindles (322) on the drilling and tapping machine head (3) are in transmission connection through a first transmission belt wheel (335) or a second transmission belt (337).
2. The multi-axis independent feeding numerical control drilling and tapping machine tool according to claim 1, wherein: three groups of drilling and tapping feeding assemblies (32) on the drilling and tapping machine head (3) are arranged, two driving pulleys (333) on the drilling and tapping driving assembly (33) are arranged, and the driving pulleys (333) are respectively inserted and fixed on adjacent spline connecting sleeves (328) on the left side of the drilling and tapping machine head (3);
two second driving pulleys (336) are arranged, and the second driving pulleys (336) are respectively inserted and fixed on adjacent spline connecting sleeves (328) on the right side of the drilling and tapping machine head (3).
3. The multi-axis independent feeding numerical control drilling and tapping machine tool according to claim 1, wherein: the central axis of the feeding barrel sleeve (321), the central axis of the rotating main shaft (322) and the central axis of the spline connecting sleeve (328) on the drilling and tapping assembly (32) are overlapped; the upper end of the drill clamping sleeve (3221) is provided with a tool withdrawal hole (3224) penetrating through the opposite outer walls of the two sides of the drill clamping sleeve (3221), and the outer walls of the two sides of the lower end of the feed cylinder sleeve (321) are provided with slots (3212) opposite to the tool withdrawal hole (3224).
4. A multi-axis independently fed numerically controlled drilling and tapping machine as in claim 3, wherein: a retainer ring (3310) is inserted into the inner wall of the upper side of the connecting sleeve (3211), and the retainer ring (3310) abuts against the lower end of the bearing outer ring;
The outer wall of the lower part of the drill clamping sleeve (3221) is provided with a baffle ring (3223), the baffle ring (3223) is inserted and abutted against a ferrule (339) with an L-shaped section, the upper end face of the ferrule (339) is abutted against the lower end face of the bearing outer ring, the lower end face of the ferrule (339) is abutted against a compression ring (324), and the compression ring (324) is in threaded connection with the inner wall of the lower end of the connecting sleeve (3211).
5. The multi-axis independent feeding numerical control drilling and tapping machine tool according to claim 4, wherein: the outer walls of a first driving belt (334) and a second driving belt (337) on the drilling and tapping driving assembly (33) are respectively abutted against a tensioning wheel (36), a tensioning support (37) is hinged on the tensioning wheel (36), and the tensioning support (37) is fixedly connected on the headstock (31).
6. The multi-axis independent feeding numerical control drilling and tapping machine tool according to claim 1, wherein: a vertical circular clamping hole (315) is formed in a clamping seat (313) of the headstock (31), a cutting groove (316) penetrating through the rear end face of the clamping seat (313) is formed in the inner wall of the rear side of the clamping hole (315), a plurality of clamping bolts (35) are inserted into the clamping seat (313) on one side of the cutting groove (316), and the tail ends of the clamping bolts (35) are in threaded connection with the clamping seat (313) on the other side of the cutting groove (316); the upright post (2) is inserted into a clamping hole (315) of the headstock (31), and the inner wall of the clamping hole (315) is pressed on the upright post (2); longitudinal lugs (317) are formed on the outer side walls of the two sides of the clamping seat (313).
7. The multi-axis independent feeding numerical control drilling and tapping machine tool according to claim 1, wherein: a rectangular workpiece clamping table (11) is formed on the base (1) right below the drilling and tapping assembly (32), and annular grooves (13) are formed around the workpiece clamping table (11); a plurality of transverse T-shaped grooves (12) are formed in the workpiece clamping table (11).
CN202410324460.3A 2024-03-21 2024-03-21 A CNC drilling and tapping machine tool with multi-axis independent feeding Pending CN118123497A (en)

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CN211277538U (en) * 2019-12-06 2020-08-18 石狮市群利精密科技有限公司 Novel drilling and tapping main shaft
CN114102142A (en) * 2021-12-03 2022-03-01 宁波佰易自动化科技有限公司 Multi-shaft turning and milling composite numerical control machine tool
CN219685615U (en) * 2022-12-22 2023-09-15 上海擎朗智能科技有限公司 Tray dismounting structure and robot

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CN207495083U (en) * 2017-10-23 2018-06-15 杭州博阳机械有限公司 A kind of numerical control drilling and tapping machine
CN211277538U (en) * 2019-12-06 2020-08-18 石狮市群利精密科技有限公司 Novel drilling and tapping main shaft
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