CN209532121U - A kind of machining center main shaft installed without bolt - Google Patents
A kind of machining center main shaft installed without bolt Download PDFInfo
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- CN209532121U CN209532121U CN201920007310.4U CN201920007310U CN209532121U CN 209532121 U CN209532121 U CN 209532121U CN 201920007310 U CN201920007310 U CN 201920007310U CN 209532121 U CN209532121 U CN 209532121U
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- machining center
- main shaft
- center main
- face
- connecting flange
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Abstract
The utility model discloses a kind of machining center main shafts installed without bolt, it mainly wears to connect by connecting flange by machining center main shaft and be constituted in spindle box, the machining center major axis horizontal or vertically-mounted, the connecting flange is set to machining center front-end of spindle portion, and the rear end face of connecting flange is bonded with the front end face of spindle box, several straight pins are equipped with it is characterized by: circumferentially wearing on the connecting flange, connecting flange is fixedly connected by the straight pin with spindle box, external screw thread is equipped in the partial outer face that machining center rear-end of spindle portion protrudes from spindle box rear end face, a locking nut is also bolted on the external screw thread, the rear end face of spindle box is fixed in machining center rear-end of spindle portion by the locking nut.The utility model uses cylinder pin connection, and in the case where connecting flange outer diameter is constant, the installation space of straight pin is smaller, and so as to install larger sized bearing, so that the rigidity of machining center main shaft becomes strong, service life is elongated.
Description
Technical field
The utility model relates to machine tooling equipment technical fields, and in particular to a kind of machining center installed without bolt
Main shaft.
Background technique
Machining center main shaft is the chief component of machining center, is arranged in main shaft by bearing activity in machining center
There is a main shaft axis body；The running accuracy and the rigidity of structure of machining center main shaft be determine processing quality and stock-removing efficiency it is important because
Element, and the radial and axial bounce occurred on the direction for influencing machining accuracy when the rotation of machining center main shaft, depend mainly on
The manufacture and assembling quality of machining center main shaft and bearing；The rigidity of structure of machining center main shaft depends mainly on the bending of main shaft
Rigidity, the rigidity of bearing and damping.
The connection of existing machining center main shaft and 8 M10 of spindle box, in the case where connecting flange outer diameter is constant,
Consider the space of installation bolt, the bearing maximum inner diameter of machining center front-end of spindle can only accomplish φ 70；Bearing load carrying capacity is poor,
Locating effect is bad, causes running accuracy low, it would be highly desirable to improve.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of machining center main shaft installed without bolt, the processing
End bearing becomes larger before central principal axis, and the rigidity change of machining center main shaft is strong, service life is elongated.
In order to solve the above technical problems, the utility model adopts the following technical scheme: one kind of the utility model does not have to spiral shell
The machining center main shaft of bolt installation, mainly is worn to connect and constitutes in spindle box by machining center main shaft by connecting flange, described to add
The horizontal or vertical installation of work central principal axis, the connecting flange are set to machining center front-end of spindle portion, and the rear end of connecting flange
Face is bonded with the front end face of spindle box, and innovative point is: it is circumferentially worn on the connecting flange and is equipped with several straight pins, institute
It states straight pin and is fixedly connected with connecting flange with spindle box, protrude from spindle box rear end face in machining center rear-end of spindle portion
Partial outer face be equipped with external screw thread, be also bolted with a locking nut on the external screw thread, the locking nut is by machining center
The rear end face of spindle box is fixed in rear-end of spindle portion.
Preferably, machining center front-end of spindle portion is additionally provided with bearing, and the bearing is set in machining center main shaft, and
The axis of bearing is overlapped with machining center main-shaft axis.
Preferably, the maximum inner diameter of the bearing is φ 90.
Preferably, machining center front-end of spindle face is additionally provided with internal taper hole, the axis and machining center of the internal taper hole
Main-shaft axis is overlapped.
Preferably, the maximum taper of the internal taper hole is BT50.
Preferably, the straight pin circular array distribution, and the specification of straight pin is φ 6.
Preferably, spacing is between the center line of the straight pin and the outer round surface in machining center front-end of spindle portion
3.5mm。
Preferably, the locking nut includes nut and sunk screw, the outer round surface of the nut to inner circle flank
It is drilled with perforative threaded hole, the threaded hole matches with sunk screw.
The utility model has the beneficial effects that
The utility model is by the way that by machining center main shaft and spindle box cylinder pin connection, machining center rear-end of spindle is locked
Tight nut is fixed；In the case where connecting flange outer diameter is constant, installation space needed for straight pin is smaller, before machining center main shaft
The space of end installation bearing becomes larger, and the bearing of larger inner diameter size can be installed, to lead to the advantage that
1) bearing of machining center front-end of spindle becomes larger, and the rigidity of machining center main shaft becomes strong, and service life is elongated；
2) machining center main shaft mounting means becomes simply, tailored appearance；
3) internal taper hole in machining center front-end of spindle face can become BT50 from BT40；
4) the utility model locks the rear end face of machining center main shaft and spindle box using locking nut, and locking nut is filled
Divide after screwing, press the front end face of spindle box, to eliminate installation gap, not will receive the influence of parts machining error,
Improve the reliability that machining center main shaft is connect with spindle box.
Detailed description of the invention
In order to more clearly illustrate the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some realities recorded in the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the machining center main shaft that the utility model does not have to bolt installation.
Fig. 2 is the structural schematic diagram of locking nut in Fig. 1.
Fig. 3 is the structural schematic diagram for the machining center main shaft installed before improving with bolt.
1- machining center main shaft；2- connecting flange；3- spindle box；4- straight pin；5- locking nut；6- bearing；7- inner cone
Hole；8- bolt；9- external screw thread；10- nut；11- sunk screw.
Specific embodiment
The technical solution of the utility model will be clearly and completely described by specific embodiment below.
A kind of machining center main shaft installed without bolt of the utility model, specific structure is as shown in Figure 1, mainly by adding
Work central principal axis 1 is worn to connect and be constituted in spindle box 3 by connecting flange 2, wherein the horizontal or vertical installation of machining center main shaft 1,
And connecting flange 2 is set to 1 front end of machining center main shaft, and the rear end face of connecting flange 2 is bonded with the front end face of spindle box 3.
The innovative point of the utility model is equipped with several straight pins 4 circumferentially to wear on connecting flange 2, and straight pin 4
Connecting flange 2 is fixedly connected with spindle box 3；As shown in Figure 1, the diameter phi 6 of the straight pin 4, and circular array is distributed, circle
Spacing is 3.5mm between the outer round surface of 1 front end of center line and machining center main shaft of pin 4, it is seen that needed for straight pin 4
Installation space is smaller；And the partial outer face that 1 rear end of main shaft protrudes from 3 rear end face of spindle box in machining center is equipped with external screw thread
9, a locking nut 5 is also bolted on external screw thread 9,1 rear end of machining center main shaft is fixed with locking nut 5；Wherein, it locks
The specific structure of nut 5 is as shown in Fig. 2, locking nut 5 includes nut 10 and sunk screw 11, and the outer round surface of nut 10 is to interior
Round thread face is drilled with perforative threaded hole, and threaded hole matches with sunk screw 11.The utility model is locked using locking nut 5
Determine the rear end face of machining center main shaft 1 Yu spindle box 3, after locking nut 5 is sufficiently screwed, presses the front end face of spindle box 3, from
And installation gap is eliminated, it not will receive the influence of parts machining error, improve machining center main shaft 1 and spindle box 3 connects
The reliability connect.
The utility model is additionally provided with bearing 6 in 1 front end of main shaft in machining center, as shown in Figure 1, the most imperial palace of the bearing 6
Diameter is φ 90, and bearing 6 is set in machining center main shaft 1, and the axis of bearing 6 is overlapped with 1 axis of machining center main shaft.
1 front end face of main shaft is additionally provided with internal taper hole 7 to the utility model in machining center, as shown in Figure 1, the axis of internal taper hole 7
It is overlapped with 1 axis of machining center main shaft, and the maximum taper of internal taper hole 7 is BT50.
The utility model is by the way that machining center main shaft 1 to be connect with the straight pin 4 of φ 6 of spindle box 3, machining center main shaft
1 mounting means becomes simply, tailored appearance；As shown in Figure 1, Figure 3, compared in Fig. 3 using bolt 8 connection by the way of, even
In the case that 2 outer diameter of acting flange is constant, installation space needed for the straight pin 4 of φ 6 is smaller, the axis of 1 front end of machining center main shaft
Holding 6 maximum inner diameters can accomplish that φ 90, bearing 6 become larger, so that the rigidity of machining center main shaft 1 becomes strong, service life is elongated；
And the internal taper hole 7 of 1 front end face of machining center main shaft can become BT50 from BT40.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical new to this
The conception and scope of type is defined, without departing from the design concept of the present utility model, ordinary skill skill in this field
Art personnel should all fall into the protection scope of the utility model to all variations and modifications that the technical solution of the utility model is made,
The claimed technology contents of the utility model, are all documented in technical requirements book.
Claims (8)
1. a kind of machining center main shaft installed without bolt, is mainly worn by connecting flange by machining center main shaft and is connect in main shaft
It being constituted in case, the machining center major axis horizontal or vertically-mounted, the connecting flange is set to machining center front-end of spindle portion, and
The rear end face of connecting flange is bonded with the front end face of spindle box, it is characterised in that: is circumferentially worn and is equipped on the connecting flange
Connecting flange is fixedly connected by several straight pins, the straight pin with spindle box, prominent in machining center rear-end of spindle portion
It is equipped with external screw thread in the partial outer face of spindle box rear end face, is also bolted with a locking nut, the locking on the external screw thread
The rear end face of spindle box is fixed in machining center rear-end of spindle portion by nut.
2. a kind of machining center main shaft installed without bolt according to claim 1, it is characterised in that: in the processing
Heart front-end of spindle portion is additionally provided with bearing, and the bearing is set in machining center main shaft, and the axis of bearing and machining center main shaft
Axis is overlapped.
3. a kind of machining center main shaft installed without bolt according to claim 2, it is characterised in that: the bearing
Maximum inner diameter is φ 90.
4. a kind of machining center main shaft installed without bolt according to claim 1, it is characterised in that: in the processing
Heart front-end of spindle face is additionally provided with internal taper hole, and the axis of the internal taper hole is overlapped with machining center main-shaft axis.
5. a kind of machining center main shaft installed without bolt according to claim 4, it is characterised in that: the internal taper hole
Maximum taper be BT50.
6. a kind of machining center main shaft installed without bolt according to claim 1, it is characterised in that: the straight pin
Circular array distribution, and the specification of straight pin is φ 6.
7. a kind of machining center main shaft installed without bolt according to claim 6, it is characterised in that: the straight pin
Center line and machining center front-end of spindle portion outer round surface between spacing be 3.5mm.
8. a kind of machining center main shaft installed without bolt according to claim 1, it is characterised in that: the locking screw
Main bag includes nut and sunk screw, and outer round surface to the inner circle flank of the nut is drilled with perforative threaded hole, the screw thread
Hole matches with sunk screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920007310.4U CN209532121U (en) | 2019-01-03 | 2019-01-03 | A kind of machining center main shaft installed without bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920007310.4U CN209532121U (en) | 2019-01-03 | 2019-01-03 | A kind of machining center main shaft installed without bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209532121U true CN209532121U (en) | 2019-10-25 |
Family
ID=68268391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920007310.4U Active CN209532121U (en) | 2019-01-03 | 2019-01-03 | A kind of machining center main shaft installed without bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209532121U (en) |
-
2019
- 2019-01-03 CN CN201920007310.4U patent/CN209532121U/en active Active
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