WO2015196856A1 - 直进式静压伺服动力主轴头及工作方法 - Google Patents

直进式静压伺服动力主轴头及工作方法 Download PDF

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Publication number
WO2015196856A1
WO2015196856A1 PCT/CN2015/077315 CN2015077315W WO2015196856A1 WO 2015196856 A1 WO2015196856 A1 WO 2015196856A1 CN 2015077315 W CN2015077315 W CN 2015077315W WO 2015196856 A1 WO2015196856 A1 WO 2015196856A1
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WO
WIPO (PCT)
Prior art keywords
spindle
sleeve
screw
cylinder
spindle head
Prior art date
Application number
PCT/CN2015/077315
Other languages
English (en)
French (fr)
Inventor
廖竹霖
Original Assignee
杭州贝克机械有限公司
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Publication of WO2015196856A1 publication Critical patent/WO2015196856A1/zh

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Classifications

    • 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
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • 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
    • B23Q5/32—Feeding working-spindles
    • B23Q5/326—Feeding working-spindles screw-operated
    • 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
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • 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
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/15553—Tensioning devices or tool holders, e.g. grippers
    • 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
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means

Definitions

  • the invention relates to a direct-flow static pressure servo power spindle head capable of satisfying high-speed movement and high-rigid cutting capability, and at the same time, achieving frictionless movement of the inner wall of the spindle sleeve shell in the spindle sleeve and the spindle head casting shell. And working methods, is the field of dynamic drilling, milling, boring machine power spindle head manufacturing.
  • the name 'hydraulic vibration drilling power head' includes a drilling power head mechanism, the drilling power head mechanism comprising a first servo motor, a left end cover, a main shaft, a first static pressure sliding bearing, a second static pressure sliding bearing, An outer casing, a right end cover, a flutter body, an elastic end cap, and a chuck for assembling the drill, the output shaft of the first servo motor is coupled to the main shaft, and the outer casing has a cavity therein, a static pressure sliding bearing is mounted on the left end of the outer casing cavity, the second static pressure sliding bearing is mounted on the right end of the outer casing cavity, and the left end cover is connected to the left end of the outer casing, the right end cover and The right end of the outer casing is connected, and the main shaft sequentially passes through the left end cover, the first static pressure sliding bearing, the cavity, the second static pressure sliding bearing and the right end cover and protrudes from the right end cover, the first static sliding sliding The oil in
  • the shortcomings are as follows: First, the machining spindle travel range is fixed, the application range is small; second, automatic tool change cannot be realized; third, the machining accuracy is low.
  • Design purpose to avoid the shortcomings in the background technology, to design a kind of high-speed movement, and high-rigid cutting ability, while at the same time achieving the frictionless movement of the inner wall of the spindle sleeve shell in the spindle sleeve and the spindle head casting shell Straight-type hydrostatic servo power spindle head and working method.
  • Design plan In order to achieve the above design goals. 1.
  • the servo motor drives the screw to rotate through the coupling, and the design of the screw rod driving the spindle sleeve back and forth through the screw connecting plate connected with the spindle sleeve is one of the technical features of the present invention.
  • the purpose of the design is that the main shaft sleeve is located in the main shaft sleeve casting shell in the casting head shell of the main shaft, and the inner wall of the main shaft sleeve casting shell is matched with the outer wall of the main shaft sleeve by a high precision gap oil film, and the oil film adopts a static pressure circulating low pressure.
  • the bolt-type cylindrical roller roller mounting holes are respectively arranged on both sides of the screw connecting plate, and the two bolt-type cylindrical roller rollers respectively pass through the bolt-type cylindrical roller roller mounting holes on both sides of the screw connecting plate and are locked
  • the design of the nut screwing is the second technical feature of the present invention.
  • the long circular hole in the two sides of the spindle head casting shell is the front and rear movement stroke of the main shaft sleeve, and the inner wall of the main shaft and the main shaft sleeve are integrally positioned by high-precision bearings, and the main shaft drives the inner sleeve of the bearing to rotate.
  • the front and rear movement stroke of the spindle sleeve is the movement stroke of the main shaft.
  • the two cylindrical roller rollers of the two cylindrical cylindrical roller rollers are used in this application.
  • the bolt type of the bolt-type cylindrical roller roller passes through the bolt type on both sides of the screw connecting plate
  • the cylindrical roller roller mounting hole is locked by a lock nut, so that the roller in the bolt type cylindrical roller roller and the bolt type cylindrical roller on the inner wall surface of the long circular hole in the both sides of the casting head shell of the spindle head are realized.
  • the rolling pad of the roller pad minimizes the wear and tear, and at the same time, the spindle concentricity is ensured by adjusting the thickness of the bolt-type cylindrical roller roller pad.
  • the design that the main shaft is made of a power shaft and a spline shaft by taper screw insertion and docking is the third technical feature of the present invention.
  • the purpose of this design is that since the length of the power shaft and the spline shaft constituting the main shaft is about 1 m, if it is not segmented, it is not possible to manufacture a through hole of about 1 m in the center of the shaft, and it is long.
  • the overall spindle of about 1 meter is very expensive to manufacture and it is difficult to ensure its rigidity.
  • the application of the component body docking structure not only realizes the straight opening hole of the power shaft and the spline shaft axis, but also realizes the purpose of opening the through hole of the power shaft and the spline shaft axis, that is, realizing automatic and rapid tool change.
  • the purpose of the shaft is greatly reduced, and the rigidity of the shaft is greatly reduced.
  • a straight-through hydrostatic servo power spindle head the servo motor is connected to one end of the screw through a coupling, one end of the screw connecting plate is connected with the screw nut, and the other end of the screw connecting plate is connected with the spindle sleeve
  • the spindle sleeve is located in the spindle sleeve casting shell in the casting shell of the spindle head, and the shell screw and the screw nut rotate to drive the spindle sleeve to move back and forth, and the bolt type cylindrical roller roller is installed on both sides of the screw connecting plate.
  • two bolt-type cylindrical roller rollers respectively pass through the bolt-type cylindrical roller roller mounting holes on both sides of the screw connecting plate and are screwed to the lock nut, and two cylindrical rollers of the two bolt-type cylindrical roller rollers
  • the sub-roller is in rolling engagement with a bolt-type cylindrical roller roller pad on the inner wall surface of the long circular hole in the two sides of the casting head of the spindle head, and the main shaft is placed in the main shaft sleeve through the bearing, and the power input end of the main shaft is a spline shaft.
  • the spline shaft is sleeved with a spline sleeve, and the spline sleeve has an inherent timing belt pulley.
  • the timing belt pulley forms a power transmission through the timing belt and the synchronous pulley on the motor shaft.
  • the main shaft is a hollow through hole spindle, and the hollow through hole spindle is provided.
  • the first invention can perform feed cutting without a sliding table, and has high processing precision and wide application range; and second, two of the bolt-type cylindrical roller rollers on both sides of the screw connecting plate.
  • the cylindrical roller rollers are respectively designed to be rolled and matched with the bolt-type cylindrical roller roller pad on the inner wall surface of the long circular hole in the two sides of the casting shell of the spindle head, thereby avoiding the rotation of the spindle sleeve and satisfying the requirements.
  • the front and rear adjustment of the spindle stroke ensures the smooth machining and cutting of the spindle, improves the transmission precision of the screw and the service life of the screw; the third is the lubrication of the spindle sleeve and the spindle sleeve casting shell in the casting shell of the spindle head.
  • the oil adopts the design of the oil core to support the spindle sleeve in an all-round manner, and realizes that the spindle sleeve casting shell of the spindle head casting shell fully supports the spindle sleeve with a length dimension larger than twice the diameter of the spindle sleeve, thereby ensuring the spindle machining axis;
  • the spline spindle and the spindle are designed in a split manner, which not only realizes the spline spindle and the spindle core hollow through hole, but also reduces the production cost of the spindle and the spline spindle.
  • the purpose of automatically changing the tool by the hydraulic power head and the servo power head is realized.
  • FIG. 1 is a schematic perspective view of a straight-through static pressure servo power spindle head.
  • FIG. 2 is a partial perspective structural view of FIG. 1.
  • FIG. 2 is a partial perspective structural view of FIG. 1.
  • FIG 3 is a schematic cross-sectional structural view of a main shaft.
  • FIG. 4 is a schematic structural view of a screw connecting plate.
  • Example 1 Referring to Figures 1-3.
  • a direct-flow static pressure servo power spindle head comprising a PLC controller, the servo motor 1-1 is connected with one end of the screw rod 1-3 through the coupling 1-2, and the screw rod 1-13 is further coupled with the spindle head casting shell 1 -10 upper screw support 17 is matched (for example, the screw is matched with the screw support), one end of the screw connection plate 1-4 is connected with the screw nut 1-16, and the other end of the screw connection plate 1-4 is The spindle sleeves 1-9 are connected, and the spindle sleeves 1-9 are located in the spindle sleeve casting shells 1-14 in the spindle head casting shell, and the shell screws 1-3 and the screw nut rotate and drive the spindle sleeves 1-9
  • bolt-type cylindrical roller roller mounting holes are respectively arranged on both sides of the screw connecting plate 1-4, and two bolt-type cylindrical roller rollers 1-5 are respectively passed through the bolt type on both sides of the screw connecting plate 1-4
  • the automatic quick tool change mechanism realizes rapid automatic tool change by the spindle 1-7, the servo motor 1-1 drives the screw 1-3 through the coupling 1-2, and the screw 1-3 is fixed on the screw connection plate 1-4 , the screw connecting plate 1-4 is connected with the spindle sleeve 1-9, the spindle sleeve 1-9 and the spindle spindle 1-11 are assembled by bearing to complete the spindle, and the spline spindle 1-13 is mounted on the spindle spindle At the end of 1-11, the spline spindle is retracted to the designated point of the tool change.
  • the cylinder 3-10 is mounted on the bottom plate 3-12 and the bottom plate 3-9 of the cutter cylinder, and the cylinder 3-10 and the cutter insert 3- 11
  • the knife insert 3-11 is installed in the knife bottom plate 3-12, and the knife bottom plate 3-12 is provided with an inner groove to position the knife insert 3-11, and the knife insert and the flower are pushed out.
  • the key ring groove 3-13 cooperates, the cylinder 3-10 pushes a certain stroke and senses the tool change signal, and the knife insert 3-11 supports the spline ring groove 3-13 to prevent the cylinder 3-7 pressure against the screw when the tool is changed.
  • the cylinder 3-7 moves, the cylinder 3-7 is installed on the bottom plate 3-9 of the cutter cylinder through the cylinder support ring 3-6,
  • the bottom plate 3-9 of the knife cylinder is fixed on the bottom plate 3-12 of the knife, and the knife oil is used.
  • the bottom plate 3-9 presses the cutter insert 3-11; the cylinder piston extends, the cylinder joint is connected with the cylinder, the cylinder joint 3-8 is in contact with the cutter connecting rod 3-16, and the cutter connecting rod 3-16 is pushed forward.
  • the knife connecting rod 3-16 is in contact with the spindle tool bar 3-21, and the disk spring 3-20 on the spindle tool bar 3-21 is compressed, so that the claw 3 connected to the spindle bar 3-21 is connected.
  • -22 forward action, release the claws 3-22, to quickly change the tool 3-23; press the tool change button, the cylinder 3-7 is connected to the cylinder joint 3-8 to return to the original stroke position, the spindle tool bar 3-
  • the disc spring 3-20 reaction force on the 21 tightens the tool, and at the same time, the knife connecting rod 3-21 is pushed out, and the knife connecting rod 3-21 is installed with O-rings 3-14 and 3-17 to prevent hitting.
  • the knife connecting rod 3-21 is moved.
  • the PLC detects the cylinder piston reset signal
  • the cylinder 3-10 pulls the knife insert 3-11 to reset, and after the cylinder piston is reset, the straight-through static pressure servo power spindle head operation is allowed.
  • the spindles 1-7 are formed by the spindle spindles 1-11 and the spline shafts 1-13 being butt-joined by taper screws 1-12, and the axes of the power shafts 1-11 and the spline shafts 1-13 are through holes. Hollow shaft.
  • the inner wall of the spindle sleeve casting shell 1-14 and the outer wall of the spindle sleeve 1-9 are matched with the oil film of the gap.
  • One or more oil ring grooves are formed in the inner wall of the main shaft sleeve casting shell 1-14 in the spindle head casting shell.
  • the spindle sleeves 1-9 are located within the spindle sleeve housing 1-14 of the spindle head casting housing and the spindle sleeve housings 1-14 are filled with oiling holes.
  • the screw connecting plates 1-4 are connected by a gourd-shaped screw, the upper part of the gourd-shaped screw connecting rod is connected with the screw nut, and the lower part is connected with the spindle sleeve 1-9.
  • the pressure regulating nut 3-18 is screwed onto the spindle tool bar 3-21 at one end of the disc spring 3-20.
  • Embodiment 2 On the basis of Embodiment 1, a working method of a direct-injection static pressure servo power spindle head, when the spindle 1-7 needs to adjust the working stroke, the servo motor 1-1 drives the screw rod 1 through the coupling -3 rotation, the screw nut on the screw 1-3 drives the screw connection plate 1-4 to rotate, the screw connection plate 1-4 drives the spindle sleeve 1-9 to move, and the spindle sleeve 1-9 drives the spindle 1-7 moving, at the same time, two cylindrical roller rollers in the bolt-type cylindrical roller rollers 1-5 on both sides of the screw connecting plate 1-4 and the strips on both sides of the spindle head casting shell 1-10 The bolt-type cylindrical roller roller pad 1-6 on the inner wall surface of the circular hole 1-15 is rollingly matched; when the spindle 1-7 needs to work, the motor drives the flower on the spline shaft 1-3 through the synchronous pulley transmission mechanism. The key sleeve rotates, and the s

Abstract

一种直进式静压伺服动力主轴头，其中伺服电机（1-1）通过联轴器（1-2）与丝杆（1-3）一端连接，丝杆连接板（1-4）一端与丝杆螺母（1-16）连接，丝杆连接板（1-4）另一端与主轴套筒（1-9）连接，主轴套筒位于主轴头铸件壳（1-10）中的主轴套筒铸壳（1-14）内，丝杆（1-3）与丝杆螺母（1-16）旋转且带动主轴套筒（1-9）前后移动，丝杆连接板（1-4）两侧对开有螺栓型圆柱滚子滚轮安装孔，两个螺栓型圆柱滚子滚轮（1-5）分别穿过丝杆连接板两侧的螺栓型圆柱滚子滚轮安装孔并与锁紧螺母（1-8）旋接，所述两个圆柱滚子滚轮（1-5）与位于主轴头铸件壳（1-10）两侧的长条圆孔（1-15）内壁面上的螺栓型圆柱滚子滚轮垫板（1-6）滚动配合。所述主轴头既能满足高速运动，又具有高刚性切削能力，同时又能实现主轴套筒与主轴头铸件壳中的主轴套筒壳内壁之间的无摩擦移动。还披露了一种直进式静压伺服动力主轴头的工作方法。

Description

直进式静压伺服动力主轴头及工作方法 Technical Field
本发明涉及一种既能满足高速运动，又具有高刚性切削能力，同时又能实现主轴套筒与主轴头铸件壳中的主轴套筒壳内壁无摩擦移动的直进式静压伺服动力主轴头及工作方法，属动钻、铣、镗床动力主轴头制造领域。
Background Art
CN103801729A 、名称'液压振动钻削动力头'，包括钻削动力头机构，所述钻削动力头机构包括第一伺服电机、左端盖、主轴、第一静压滑动轴承、第二静压滑动轴承、外壳体、右端盖、颤振体、弹性端盖和用于装配钻头的卡头，所述第一伺服电机的输出轴与所述主轴连接，所述外壳体内部开有容腔，所述第一静压滑动轴承安装于所述外壳体容腔左端，所述第二静压滑动轴承安装于所述外壳体容腔右端，所述左端盖与所述外壳体左端连接，所述右端盖与所述外壳体右端连接，所述主轴依次穿过左端盖、第一静压滑动轴承、容腔、第二静压滑动轴承和右端盖并伸出所述右端盖，所述第一静压滑动轴承与第二静压滑动轴承的进油口通过所述外壳体中的进油流道连通，所述进油流道与外壳体的进油口连通，所述外壳体的进油口与减压阀的出油口连接，所述第一静压滑动轴承与第二静压滑动轴承的回油口通过所述外壳体中部的回油流道与油箱回油口连接，所述颤振体与所述主轴的右端连接，所述颤振体中部开有进出油孔，高频激振阀的出油口与外壳体的进出油口连接，并通过外壳体中的进出流道和所述主轴中的轴向流道与所述进出油孔连通，所述颤振体右端与弹性端盖连接，所述颤振体右端与所述弹性端盖左端构成一个振动容腔，所述弹性端盖右端与卡头固定连接。
 Technical Problem
其不足之处：一是加工主轴行程范围为固定式，适用范围小；二是无法实现自动换刀；三是加工精度低。
Technical Solution
设计目的：避免背景技术中的不足之处，设计一种既能满足高速运动，又具有高刚性切削能力，同时又能实现主轴套筒与主轴头铸件壳中的主轴套筒壳内壁无摩擦移动的直进式静压伺服动力主轴头及工作方法。
设计方案：为了实现上述设计目的。1、伺服电机通过联轴器带动丝杆旋转，丝杆通过与主轴套筒连接的丝杆连接板带动主轴套筒前后移动的设计，是本发明的技术特征之一。这样设计的目的在于：由于主轴套筒位于主轴头铸件壳中的主轴套筒铸壳内，而主轴套筒铸壳内壁与主轴套筒外壁为高精密间隙油膜配合，该油膜采用静压循环低压给油产生油膜，因而消除主轴套筒与主轴头铸件壳中的主轴套筒铸壳之间的装配公差，其油膜使主轴头铸件壳中的主轴套筒铸壳内壁与主轴套筒外壁之间不会产生摩擦，实现了高精度无摩损移动。2、丝杆连接板两侧对开有螺栓型圆柱滚子滚轮安装孔，两个螺栓型圆柱滚子滚轮分别穿过丝杆连接板两侧的螺栓型圆柱滚子滚轮安装孔且与锁紧螺母旋接的设计，是本发明的技术特征之二。这样设计的目的在于：由于主轴头铸件壳两侧中的长条圆孔系为主轴套筒前后移动行程，而主轴与主轴套筒内壁采用高精密轴承定位一体，主轴带动轴承内套旋转，因而主轴套筒前后移动行程即为主轴的移动行程，为了确保主轴直线行程的高精准，防止主轴转动带动主轴套筒转动，本申请采用两个螺栓型圆柱滚子滚轮中的两个圆柱滚子滚轮与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合，其螺栓型圆柱滚子滚轮中螺栓部穿过丝杆连接板两侧的螺栓型圆柱滚子滚轮安装孔且采用锁紧螺母锁紧，这样既实现了螺栓型圆柱滚子滚轮中的滚轮与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合，最大限度地降低了摩损，同时通过对螺栓型圆柱滚子滚轮垫板厚度的调整，确保了主轴同心度，使得主轴加工切削平稳进行，提高丝杆传动精度及丝杆使用寿命，避免了主轴启动旋转对丝杆的冲击及损害。3、主轴由动力轴和花键轴采用锥度螺丝插接对接而成的设计，是本发明的技术特征之三。这样设计的目的在于：由于构成主轴的动力轴和花键轴的长度在1米左右，如果不将其分段设计，不仅无法在轴的中心制造长在1米左右的通孔，而且长达1米左右的整体主轴的制造成本非常昂贵，并且难以确保其刚性。本申请将其设计成分体对接结构不仅可以实现动力轴和花键轴轴心的顺长开通孔，而且使动力轴和花键轴轴心的开通孔的目的得以实现，即实现自动快速换刀的目，并且大大地降低了轴的制造成本，确保了其刚性要求。
技术方案1：一种直进式静压伺服动力主轴头，伺服电机通过联轴器与丝杆一端连接，丝杆连接板一端与丝杆螺母连接，丝杆连接板另一端与主轴套筒连接，主轴套筒位于主轴头铸件壳中的主轴套筒铸壳内，壳丝杆与丝杆螺母旋且带动主轴套筒前后移动，丝杆连接板两侧对开有螺栓型圆柱滚子滚轮安装孔，两个螺栓型圆柱滚子滚轮分别穿过丝杆连接板两侧的螺栓型圆柱滚子滚轮安装孔且与锁紧螺母旋接，两个螺栓型圆柱滚子滚轮中的两个圆柱滚子滚轮与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合，主轴通过轴承位于主轴套筒内，主轴的动力输入端为花键轴，花键轴上套有花键套，花键套上固有同步带轮，同步带轮通过同步带与电机轴上的同步带轮形成动力传输，主轴为空心通孔主轴，空心通孔主轴设有自动快速换刀机构。
技术方案2：一种直进式静压伺服动力主轴头的工作方法，主轴需要调节工作行程时，伺服电机通过联轴器驱动丝杆转动，套在丝杆上的丝杆螺母带动丝杆连接板转动，丝杆连接板带动主轴套筒移动，主轴套筒带动主轴移动同时，位于丝杆连接板两侧的螺栓型圆柱滚子滚轮中的两个圆柱滚子滚轮分别与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合；主轴需要工作时，电机通过同步带轮传动机构带动套在花键轴上的花键轴套转动，花键轴套带动花键轴及主轴旋转。
Advantageous Effects
本发明与背景技术相比，一是主轴头无需滑台既可进行进给切削，且加工精度高、适用范围广；二是位于丝杆连接板两侧的螺栓型圆柱滚子滚轮中的两个圆柱滚子滚轮分别与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合的设计，既避免了主轴套筒的转动，又实现了满足了主轴行程前后调节，确保了主轴的平稳加工切削，提高丝杆了传动精度及丝杆使用寿命；三是主轴套筒与主轴头铸件壳中主轴套筒铸壳的配合公差尺寸内注满润滑油，采用油分子全方位支撑主轴套筒的设计，实现了主轴头铸件壳中主轴套筒铸壳全支持主轴套筒的长度尺寸大于两倍主轴套筒直径，从而确保主轴加工轴心度；四是花键主轴与主轴的采用分体式方法设计，既实现了花键主轴与主轴轴心空心通孔的目的，减少主轴与花键主轴生产成本，实现了油压动力头及伺服动力头自动换刀具的目的。
Description of Drawings
图1是直进式静压伺服动力主轴头的立体结构示意图。
图2是图1的局部立体结构示意图。
图3是主轴的剖视结构示意图。
图4是丝杆连接板的结构示意图。
 Best Mode
实施例1：参照附图1-3。一种直进式静压伺服动力主轴头，包括PLC控制器，伺服电机1-1通过联轴器1-2与丝杆1-3一端连接，丝杆1-13另与主轴头铸件壳1-10上丝杆支撑座17配合（如丝杆采用轴承与丝杆支撑座配合），丝杆连接板1-4一端与丝杆螺母1-16连接，丝杆连接板1-4另一端与主轴套筒1-9连接，主轴套筒1-9位于主轴头铸件壳中的主轴套筒铸壳1-14内，壳丝杆1-3与丝杆螺母旋且带动主轴套筒1-9前后移动，丝杆连接板1-4两侧对开有螺栓型圆柱滚子滚轮安装孔，两个螺栓型圆柱滚子滚轮1-5分别穿过丝杆连接板1-4两侧的螺栓型圆柱滚子滚轮安装孔且与锁紧螺母1-8旋接，两个螺栓型圆柱滚子滚轮1-5中的两个圆柱滚子滚轮与位于主轴头铸件壳1-10两侧中的长条圆孔1-15内壁面上的螺栓型圆柱滚子滚轮垫板1-6滚动配合，主轴1-7通过轴承位于主轴套筒1-9内，主轴1-7的动力输入端为花键轴1-13，花键轴1-3上套有花键套，花键套上固有同步带轮，同步带轮通过同步带与电机轴上的同步带轮形成动力传输，主轴1-7为空心通孔主轴，空心通孔主轴设有自动快速换刀机构，即：
自动快速换刀机构由主轴1-7实现快速自动换刀，伺服电机1-1通过联轴器1-2驱动丝杆1-3，丝杆1-3固定于丝杆连接板1-4上，丝杆连接板1-4与主轴套筒1-9连接，主轴套筒1-9与主轴心轴1-11通过轴承配合组装完成主轴，花键主轴1-13安装于主轴心轴1-11尾端，实现花键主轴退到换刀指定点，气缸3-10安装于打刀底板3-12和打刀油缸底板3-9上，气缸3-10与打刀插片3-11通过螺纹连接动作，打刀插片3-11安装在打刀底板3-12中，打刀底板3-12设有内槽可以定位打刀插片3-11，推出打刀插片与花键环槽3-13配合，气缸3-10推出一定行程后感应到换刀信号，打刀插片3-11支撑花键环槽3-13，防止换刀时油缸3-7压力对丝杆1-3及轴承的的损伤，实现自动换刀或按下换刀按钮，使得油缸3-7动作，油缸3-7通过油缸支撑圈3-6安装于打刀油缸底板3-9上，打刀油缸底板3-9固定在打刀底板3-12上，打刀油缸底板3-9压住打刀插片3-11；油缸活塞伸出，油缸接头与油缸连接，油缸接头3-8与打刀连接杆3-16接触，推动打刀连接杆3-16往前走动，打刀连接杆3-16与主轴打刀杆3-21接触，压缩主轴打刀杆3-21上的碟簧3-20，使得与主轴打刀杆3-21上连接的拉爪3-22往前动作，松开拉爪3-22，实现快速换刀具3-23；按下换刀按钮，油缸3-7连接油缸接头3-8退回到原行程位置，主轴打刀杆3-21上的碟簧3-20反作用力拉紧刀具，同时把打刀连接杆3-21往后顶出，打刀连接杆3-21安装有O型圈3-14和3-17可以防止打刀连接杆3-21窜动，当PLC检测到油缸活塞复位信号后，气缸3-10拉动打刀插片3-11复位，气缸活塞复位后，允许直进式静压伺服动力主轴头操作。
主轴1-7由主轴心轴1-11和花键轴1-13采用锥度螺丝1-12插接对接而成，其动力轴1-11和花键轴1-13的轴心为通孔空心轴。主轴头铸件壳1-10中主轴套筒铸壳1-14内壁与主轴套筒1-9外壁为间隙油膜配合。主轴头铸件壳中的主轴套筒铸壳1-14内壁开有一道一以上油环槽。主轴套筒1-9位于主轴头铸件壳中的主轴套筒壳1-14内且主轴套筒壳1-14开有注油孔。
丝杆连接板1-4呈葫芦形丝杆连接，葫芦形丝杆连接板上部与丝杆螺母连接、下部与主轴套筒1-9连接。调压螺母3-18旋接在碟簧3-20一端的主轴打刀杆3-21上。
实施例2：在实施例1的基础上，一种直进式静压伺服动力主轴头的工作方法，主轴1-7需要调节工作行程时，伺服电机1-1通过联轴器驱动丝杆1-3转动，套在丝杆1-3上的丝杆螺母带动丝杆连接板1-4转动，丝杆连接板1-4带动主轴套筒1-9移动，主轴套筒1-9带动主轴1-7移动同时，位于丝杆连接板1-4两侧的螺栓型圆柱滚子滚轮1-5中的两个圆柱滚子滚轮分别与位于主轴头铸件壳1-10两侧中的长条圆孔1-15内壁面上的螺栓型圆柱滚子滚轮垫板1-6滚动配合；主轴1-7需要工作时，电机通过同步带轮传动机构带动套在花键轴1-3上的花键轴套转动，花键轴套带动花键轴及主轴旋转。
需要理解到的是：上述实施例虽然对本发明的设计思路作了比较详细的文字描述，但是这些文字描述，只是对本发明设计思路的简单文字描述，而不是对本发明设计思路的限制，任何不超出本发明设计思路的组合、增加或修改，均落入本发明的保护范围内。

Claims (9)

  1. 一种直进式静压伺服动力主轴头，包括PLC控制器，其特征是：伺服电机通过联轴器与丝杆一端连接，丝杆连接板一端与丝杆螺母连接，丝杆连接板另一端与主轴套筒连接，主轴套筒位于主轴头铸件壳中的主轴套筒铸壳内，壳丝杆与丝杆螺母旋且带动主轴套筒前后移动，丝杆连接板两侧对开有螺栓型圆柱滚子滚轮安装孔，两个螺栓型圆柱滚子滚轮分别穿过丝杆连接板两侧的螺栓型圆柱滚子滚轮安装孔且与锁紧螺母旋接，两个螺栓型圆柱滚子滚轮中的两个圆柱滚子滚轮与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合，主轴通过轴承位于主轴套筒内，主轴的动力输入端为花键轴，花键轴上套有花键套，花键套上固有同步带轮，同步带轮通过同步带与电机轴上的同步带轮形成动力传输，主轴为空心通孔主轴，空心通孔主轴设有自动快速换刀机构。
  2. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：自动快速换刀机构由主轴实现快速自动换刀，气缸安装于打刀底板和打刀油缸底板上，气缸与打刀插片通过螺纹连接动作，打刀插片安装在打刀底板中，打刀底板设有内槽可以定位打刀插片，推出打刀插片与花键环槽配合，气缸推出一定行程后感应到换刀信号，打刀插片支撑花键环槽，防止换刀时油缸压力对丝杆及轴承的的损伤，实现自动换刀或按下换刀按钮，使得油缸动作，油缸通过油缸支撑圈安装于打刀油缸底板上，打刀油缸底板固定在打刀底板上，打刀油缸底板压住打刀插片；油缸活塞伸出，油缸接头与油缸连接，油缸接头与打刀连接杆接触，推动打刀连接杆往前走动，打刀连接杆与主轴打刀杆接触，压缩主轴打刀杆上的碟簧，使得与主轴打刀杆上连接的拉爪往前动作，松开拉爪，实现快速换刀具；按下换刀按钮，油缸连接油缸接头退回到原行程位置，主轴打刀杆上的碟簧反作用力拉紧刀具，同时把打刀连接杆往后顶出，打刀连接杆安装有O型圈可以防止打刀连接杆窜动，当PLC检测到油缸活塞复位信号后，气缸拉动打刀插片复位，气缸活塞复位后，允许直进式静压伺服动力主轴头操作。
  3. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：主轴由主轴心轴和花键轴采用锥度螺丝插接对接而成，其动力轴和花键轴的轴心为通孔空心轴。
  4. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：主轴头铸件壳中主轴套筒铸壳内壁与主轴套筒外壁为间隙油膜配合。
  5. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：主轴套筒位于主轴头铸件壳中的主轴套筒壳内且主轴套筒壳开有注油孔。
  6. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：丝杆连接板呈葫芦形丝杆连接，葫芦形丝杆连接板上部与丝杆螺母连接、下部与主轴套筒连接。
  7. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：主轴头铸件壳中的主轴套筒铸壳内壁开有一道一以上油环槽。
  8. 根据权利要求1所述的直进式静压伺服动力主轴头，其特征是：调压螺母旋接在碟簧一端的主轴打刀杆上。
  9. 一种直进式静压伺服动力主轴头的工作方法，其特征是：主轴需要调节工作行程时，伺服电机通过联轴器驱动丝杆转动，套在丝杆上的丝杆螺母带动丝杆连接板转动，丝杆连接板带动主轴套筒移动，主轴套筒带动主轴移动同时，位于丝杆连接板两侧的螺栓型圆柱滚子滚轮中的两个圆柱滚子滚轮分别与位于主轴头铸件壳两侧中的长条圆孔内壁面上的螺栓型圆柱滚子滚轮垫板滚动配合；主轴需要工作时，电机通过同步带轮传动机构带动套在花键轴上的花键轴套转动，花键轴套带动花键轴及主轴旋转。
PCT/CN2015/077315 2014-06-24 2015-04-23 直进式静压伺服动力主轴头及工作方法 WO2015196856A1 (zh)

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