CN206123270U - Vertical machining center cutter main shaft structure - Google Patents

Abstract

The utility model discloses a vertical machining center cutter main shaft structure, main content is: the front end housing is installed on the left end face of casing, the left side angular contact ball bearing install on the main shaft, interior spacer is installed on the main shaft, the right side angular contact ball bearing install on the main shaft, preceding locking nut installed is on the main shaft, outer spacer is installed in the centre bore of casing, preceding sealed lid is installed in the centre bore of casing, the oil scraper ring is installed on the main shaft, deep groove ball bearing installs on the main shaft, rear sealing ring installs on the main shaft, the rear end cap is installed on the right -hand member face of casing, synchronous pulley installs on the main shaft, back locking nut installed is on the main shaft, the handle of a knife is installed in the taper hole of main shaft, the pull rod is installed in the centre bore of main shaft, the steel ball is installed in the radial hole of pull rod, the adjustment is filled up and is installed on the pull rod, dish spring cover is on the pull rod, dish spring right -hand member face top is on the left end face of uide bushing, the uide bushing is installed on the pull rod, two nuts are installed on the pull rod.

Description

Tool spindle structure of a vertical machining center

technical field

The utility model relates to the technical field of tool spindles, in particular to a tool spindle structure of a vertical machining center.

Background technique

The development history of machining centers fully proves that the lag in the development of machining center spindles has always been one of the bottlenecks restricting the development of my country's industry. The quality of the tool spindle of the vertical machining center affects the accuracy of the entire machining center. At present, the electric spindle is mainly used for high-speed machining, and achieves high efficiency and high precision goals through high speed. At present, the maximum speed of the high-speed electric spindle used in the machining center in China is as high as 30,000r/min, while the general speed is 15,000r/min. However, because the speed of the electric spindle is too high, the torque is generally very low, which cannot meet the high-torque processing on the machining center. need. Moreover, the tool spindle of the existing vertical machining center has a complex structure, very complicated installation and disassembly, low running precision, and poor stability and reliability.

Utility model content

The technical problem to be solved by the utility model is to disclose a tool spindle structure of a vertical machining center for the shortcomings of the above-mentioned prior art, which has a simple structure, convenient installation and disassembly, high operating precision, good stability and high reliability.

The technical solution adopted by the utility model to solve the technical problem is: a vertical machining center tool spindle structure, including a tool handle, an angular contact ball bearing, a front sealing cover, an end face key, a front sealing ring, an outer spacer sleeve, an inner spacer Sleeve, steel ball, oil deflector ring, rear end cover, disc spring, double nut, pull rod, guide sleeve, rear lock nut, common flat key, synchronous pulley, rear sealing ring, deep groove ball bearing, adjustment pad, front lock nut, housing, front end cover and main shaft; the end face key is fixed on the left end face of the main shaft by screws, the front end cover is fixed on the left end face of the housing by screws, and the front sealing ring is installed on the On the main shaft and the left end face of the front sealing ring is on the step on the left side of the main shaft, the angular contact ball bearing mentioned on the left is installed on the main shaft and the left side of the inner ring of the left angular contact ball bearing is on the right end of the front sealing ring On the surface, the inner spacer is installed on the main shaft and the left end face of the inner spacer is against the right end face of the inner ring of the left angular contact ball bearing, the angular contact ball bearing on the right is installed on the main shaft and the right angular contact ball bearing The left side of the inner ring of the contact ball bearing is pushed against the right end face of the inner spacer, the front lock nut is installed on the main shaft and the left end face of the front lock nut is pushed against the right side of the inner ring of the right angular contact ball bearing Above, the outer spacer is installed in the center hole of the housing and the outer spacer is located between the outer ring of the left angular contact ball bearing and the outer ring of the right angular contact ball bearing, and the front sealing cover is installed in the housing In the center hole and the right end surface of the front sealing cover is pushed against the left end surface of the outer ring of the left angular contact ball bearing, the right end surface of the front end cover is pushed against the left end surface of the front sealing cover, and the oil deflector ring is installed on the main shaft And the left end surface of the oil deflector ring is on the step on the right side of the main shaft, the deep groove ball bearing is installed on the main shaft and the left end surface of the inner ring of the deep groove ball bearing is on the right end surface of the oil deflector ring, the rear sealing ring is installed On the main shaft and the left end face of the rear seal ring is pushed against the right end face of the inner ring of the deep groove ball bearing, the rear end cover is installed on the right end face of the housing through screws, and the synchronous pulley is installed on the main shaft through ordinary flat keys and the left end surface of the synchronous pulley is on the right end surface of the rear seal ring, the rear lock nut is installed on the main shaft and the left end surface of the rear lock nut is on the right end surface of the synchronous pulley, the tool handle is installed In the tapered hole of the main shaft and the right end of the handle is located in the center hole of the tie rod, the tie rod is installed in the center hole of the main shaft, the steel ball is installed in the radial hole of the tie rod and the steel ball is pushed against the groove of the handle , the adjustment pad is installed on the pull rod and the left end surface of the adjustment pad is on the step of the central hole of the main shaft, the disc spring is sleeved on the pull rod and the left end face of the disc spring is on the right end face of the adjustment pad, the right end of the disc spring is The surface abuts on the left end face of the guide sleeve, the guide sleeve is installed on the pull rod, the double nuts are installed on the pull rod and the left end face of the double nuts abuts on the right end face of the guide sleeve.

As a preferred embodiment of the present invention, the axis of the pull rod coincides with the axis of the main shaft, and the axis of the housing coincides with the axis of the main shaft.

As a preferred embodiment of the present utility model, an annular boss is provided on the outer surface of the housing.

As a preferred embodiment of the present invention, a sealing ring is installed between the outer cylindrical surface on the left side of the pull rod and the inner hole of the main shaft, and the sealing ring is stuck in the annular groove of the pull rod.

The tool spindle structure of the vertical machining center adopts a fixed layout at both ends. The front end of the spindle is a pair of angular contact ball bearings installed back-to-back, and a deep groove ball bearing is installed at the rear end. The rear end of the main shaft adopts deep groove ball bearings. In addition to ensuring the radial force and axial force on the main shaft, the deep groove ball bearings are suitable for high-speed or even extremely high-speed operation, and are very durable and do not require frequent maintenance.

Compared with the prior art, the utility model has the following advantages:

The utility model discloses a tool spindle structure of a vertical machining center, which adopts the method of fixing both ends, which improves the operation accuracy and stability of the spindle, and has high reliability; it is convenient to install and disassemble, simple to maintain, and very convenient to install the tool.

Description of drawings

Fig. 1 is a schematic structural view of a specific embodiment of the present invention.

Explanation of reference signs:

1: Tool handle, 2: Angular contact ball bearing, 3: Front sealing cover, 4: End face key, 5: Front sealing ring, 6: Outer spacer, 7: Inner spacer, 8: Steel ball, 9: Oil retainer Ring, 10: rear end cover, 11: disc spring, 12: double nut, 13: tie rod, 14: guide sleeve, 15: rear lock nut, 16: ordinary flat key, 17: synchronous pulley, 18: rear seal Ring, 19: deep groove ball bearing, 20: adjusting pad, 21: front lock nut, 22: housing, 23: front end cover, 24: main shaft.

detailed description

Describe the specific implementation of the utility model below in conjunction with accompanying drawing and embodiment:

It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the scope of the utility model. The limited conditions of implementation, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and the purpose that the utility model can produce, should still fall within the technology disclosed in the utility model. within the scope of the content.

At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable range of the utility model, and the change or adjustment of its relative relationship, without any substantial change in the technical content, shall also be regarded as the practicable scope of the utility model.

As shown in Figure 1, it shows the specific implementation of the present utility model; Sealing cover 3, end face key 4, front sealing ring 5, outer spacer 6, inner spacer 7, steel ball 8, oil retaining ring 9, rear end cover 10, disc spring 11, double nut 12, pull rod 13, guide sleeve 14. Rear lock nut 15, ordinary flat key 16, synchronous pulley 17, rear seal ring 18, deep groove ball bearing 19, adjustment pad 20, front lock nut 21, housing 22, front end cover 23 and main shaft 24; The end face key 4 is fixedly installed on the left end face of the main shaft 24 by screws, the front end cover 23 is fixed on the left end face of the housing 22 by screws, the front seal ring 5 is installed on the main shaft 24 and the front seal ring 5. The left end surface rests on the step on the left side of the main shaft 24. The angular contact ball bearing 2 described on the left is installed on the main shaft 24 and the left side of the inner ring of the left angular contact ball bearing 2 rests on the right end of the front sealing ring 5. On the surface, the inner spacer 7 is installed on the main shaft 24 and the left end surface of the inner spacer 7 is on the right end surface of the inner ring of the left angular contact ball bearing 2, and the angular contact ball bearing 2 on the right side is installed on the main shaft 24 and the left side of the inner ring of the right angular contact ball bearing 2 pushes against the right end face of the inner spacer 7, the front lock nut 21 is installed on the main shaft 24 and the left end face of the front lock nut 21 is pushed against the right end face On the right side of the inner ring of the side angular contact ball bearing 2, the outer spacer 6 is installed in the center hole of the housing 22 and the outer spacer 6 is located on the outer ring of the left angular contact ball bearing 2 and the right angular contact ball Between the outer rings of the bearings 2, the front sealing cover 3 is installed in the center hole of the housing 22 and the right end surface of the front sealing cover 3 is pushed against the left end surface of the outer ring of the left angular contact ball bearing 2, the front end cover 23 The right end face of the front sealing cover 3 is pushed against the left end face of the front seal cover 3, the oil deflector ring 9 is installed on the main shaft 24 and the left end face of the oil deflector ring 9 is pushed against the step on the right side of the main shaft 24, and the deep groove ball bearing 19 is installed On the main shaft 24 and the left end surface of the inner ring of the deep groove ball bearing 19 abuts on the right end surface of the oil deflector ring 9, the rear sealing ring 18 is installed on the main shaft 24 and the left end surface of the rear sealing ring 18 abuts on the deep groove ball bearing 19 On the right end face of the inner ring, the rear end cover 10 is mounted on the right end face of the housing 22 through screws, the synchronous pulley 17 is mounted on the main shaft 24 through a common flat key 16 and the left end face of the synchronous pulley 17 is On the right end face of the rear seal ring 18, the rear lock nut 15 is installed on the main shaft 24 and the left end face of the rear lock nut 15 is pushed against the right end face of the synchronous pulley 17, and the tool handle 1 is installed on the main shaft 24 and the right end of the handle 1 is located in the center hole of the pull rod 13, the pull rod 13 is installed in the center hole of the main shaft 24, the steel ball 8 is installed in the radial hole of the pull rod 13 and the steel ball 8 stands on the knife In the groove of the handle 1, the adjustment pad 20 is installed on the pull rod 13 and the left end surface of the adjustment pad 20 rests on the step of the central hole of the main shaft 24, the disc spring 11 is set on the pull rod 13 and the left end face of the disc spring 10 is on top On the right end surface of the adjustment pad 20, the right end surface of the disc spring 10 is pushed against the left end of the guide sleeve 14. On the surface, the guide sleeve 14 is installed on the pull rod 13 , the double nut 12 is installed on the pull rod 13 and the left end surface of the double nut 12 abuts on the right end surface of the guide sleeve 14 .

Preferably, the axis of the pull rod 13 coincides with the axis of the main shaft 24 , and the axis of the housing 22 coincides with the axis of the main shaft 24 .

Preferably, an annular boss is provided on the outer surface of the housing 22 .

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiment. Make various changes.

Many other changes and modifications can be made without departing from the spirit and scope of the present invention. It should be understood that the invention is not limited to specific embodiments, and the scope of the invention is defined by the appended claims.

Claims (4)

1. A tool spindle structure of a vertical machining center, characterized in that it includes a tool handle, an angular contact ball bearing, a front sealing cover, an end face key, a front sealing ring, an outer spacer, an inner spacer, a steel ball, and an oil retaining ring , rear end cover, disc spring, double nut, pull rod, guide sleeve, rear lock nut, ordinary flat key, synchronous pulley, rear sealing ring, deep groove ball bearing, adjusting pad, front lock nut, housing, front end Cover and main shaft; the end face key is fixed on the left end face of the main shaft by screws, the front end cover is fixed on the left end face of the housing by screws, the front sealing ring is installed on the main shaft and the left end face of the front sealing ring On the step on the left side of the main shaft, the angular contact ball bearing on the left is installed on the main shaft and the left side of the inner ring of the left angular contact ball bearing is on the right end face of the front sealing ring, the inner spacer Installed on the main shaft and the left end face of the inner spacer is against the right end face of the inner ring of the left angular contact ball bearing, the angular contact ball bearing described on the right is installed on the main shaft and the left side of the inner ring of the right angular contact ball bearing face against the right end face of the inner spacer, the front lock nut is installed on the main shaft and the left end face of the front lock nut is on the right side of the inner ring of the right angular contact ball bearing, the outer spacer is installed In the central hole of the housing and the outer spacer is located between the outer ring of the left angular contact ball bearing and the outer ring of the right angular contact ball bearing, the front sealing cover is installed in the central hole of the housing and the right end of the front sealing cover face abuts on the left end face of the left angular contact ball bearing outer ring, the right end face of the front end cover is abutted on the left end face of the front sealing cover, the oil deflector ring is installed on the main shaft and the left end face of the oil deflector ring is abutted on the On the step on the right side of the main shaft, the deep groove ball bearing is installed on the main shaft and the left end surface of the inner ring of the deep groove ball bearing is on the right end surface of the oil deflector ring, the rear sealing ring is installed on the main shaft and the left end of the rear sealing ring The surface top is on the right end face of the inner ring of the deep groove ball bearing, the rear end cover is installed on the right end face of the housing through screws, the synchronous pulley is installed on the main shaft through an ordinary flat key and the left end face of the synchronous pulley The rear lock nut is mounted on the main shaft and the left end face of the rear lock nut is supported on the right end face of the synchronous pulley. The tool handle is installed in the taper hole of the main shaft and the knife The right end of the handle is located in the center hole of the pull rod, the pull rod is installed in the center hole of the main shaft, the steel ball is installed in the radial hole of the pull rod and the steel ball is pushed against the groove of the handle, the adjustment pad is installed in the pull rod and the left end face of the adjustment pad is on the step of the center hole of the main shaft, the disc spring is set on the pull rod and the left end face of the disc spring is on the right end face of the adjustment pad, and the right end face of the disc spring is on the left end face of the guide sleeve Above, the guide sleeve is installed on the pull rod, the double nut is installed on the pull rod and the left end surface of the double nut bears on the right end surface of the guide sleeve. 2. The tool spindle structure of a vertical machining center according to claim 1, wherein the axis of the pull rod coincides with the axis of the spindle, and the axis of the housing coincides with the axis of the spindle. 3. The tool spindle structure of a vertical machining center according to claim 1, wherein an annular boss is provided on the outer surface of the housing. 4. The tool spindle structure of a vertical machining center as claimed in claim 1, wherein a seal ring is installed between the outer cylindrical surface on the left side of the pull rod and the inner hole of the spindle, and the seal ring is stuck in the annular recess of the pull rod. slot.