CN213671833U

CN213671833U - Main spindle box of machining center

Info

Publication number: CN213671833U
Application number: CN202022716694.2U
Authority: CN
Inventors: 李泽彪; 熊明漳
Original assignee: Shenzhen Taizheng Precision Machinery Co ltd
Current assignee: Shenzhen Taizheng Precision Machinery Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-13
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses a spindle box of a machining center, which comprises a box body, wherein one end of the box body is formed into a first mounting end, and the other end of the box body is formed into a second mounting end; the first mounting end is provided with a mounting cavity and a shaft hole, and the mounting cavity and the shaft hole are distributed up and down and are communicated; the inner diameter of the mounting cavity is larger than that of the shaft hole; the second mounting end is provided with a mounting seat, and a through hole for the external nut to be connected in a penetrating way is formed in the mounting seat; a plurality of first transverse reinforcing ribs and a plurality of first longitudinal processing ribs are arranged outside the first mounting end, and the plurality of first transverse reinforcing ribs are distributed at intervals in the height direction of the first mounting end; the plurality of first longitudinal processing ribs are distributed at intervals in the circumferential direction of the first mounting end; the first mounting end is connected with the second mounting end through a triangular reinforcing rib. The first mounting end of the utility model can be provided with the motor and the main shaft, while the second mounting end can be provided with the screw rod transmission mechanism on the machine tool, so that the main shaft and the transmission part can operate independently and relatively stably; and the box body has better integral strength.

Description

Main spindle box of machining center

Technical Field

The utility model relates to the technical field of machining, especially, relate to a machining center's headstock.

Background

At present, a main shaft part of a machining center consists of a main shaft power, a transmission, a main shaft box and the like, and is one of important executing parts of forming movement of the machining center, so that the main shaft part of the machining center is required to have high running precision, long-term precision retentivity and long-term running precision stability. Among a plurality of parts, the main spindle box is the largest part, the structure of the main spindle box has close relation with the overall performance of a machine tool, the mechanical property of the main spindle box is improved, and the main spindle box has important significance for improving the quality of machine tool products and ensuring the machining precision.

The main spindle box belongs to box parts and is structurally characterized in that a cavity is formed by surrounding thin walls and is used for supporting, connecting and bearing parts, containing other types of parts and keeping the relative position and relative movement relationship among all the parts. The reinforcing ribs have a very large influence on the rigidity of the spindle head, so the arrangement of the reinforcing ribs is important in order to ensure the mechanical characteristics of the spindle head.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a spindle box of a machining center, wherein a first mounting end of the spindle box can be provided with a motor and a spindle, and a second mounting end of the spindle box can be provided with a screw rod transmission mechanism on a machine tool, so that the spindle and a transmission part can operate independently and relatively stably; and the box body has better integral strength.

The purpose of the utility model is realized by adopting the following technical scheme:

a main spindle box of a machining center comprises a box body, wherein one end of the box body is formed into a first mounting end, and the other end of the box body is formed into a second mounting end; the first mounting end is provided with a mounting cavity and a shaft hole, and the mounting cavity and the shaft hole are distributed up and down and are communicated; the inner diameter of the mounting cavity is larger than that of the shaft hole; the second mounting end is provided with a mounting seat, and a through hole for the external nut to be connected in a penetrating way is formed in the mounting seat; a plurality of first transverse reinforcing ribs and a plurality of first longitudinal processing ribs are arranged outside the first mounting end, and the plurality of first transverse reinforcing ribs are distributed at intervals in the height direction of the first mounting end; the plurality of first longitudinal processing ribs are distributed at intervals in the circumferential direction of the first mounting end; the first mounting end is connected with the second mounting end through a triangular reinforcing rib.

Preferably, a reinforcing section is arranged between the first mounting end and the second mounting end, the reinforcing section comprises two side plates, a plurality of second transverse reinforcing ribs and a plurality of second longitudinal reinforcing ribs, and the two side plates are respectively connected to two sides of the first mounting end and two sides of the second mounting end; the plurality of second transverse reinforcing ribs are connected between the two side plates and are distributed at intervals in the height direction of the side plates; and a second longitudinal reinforcing rib is connected among the second transverse reinforcing ribs.

Preferably, the side plate is provided with a hanging ring hole; the suspension ring holes on the two side plates are correspondingly arranged.

Preferably, the mounting seat comprises a connecting block and two mounting pieces, the two mounting pieces are arranged on the side surface of the second mounting end at intervals, and the connecting block is connected between the two mounting pieces; the through hole is formed in the connecting block.

Preferably, a sliding block is arranged on the side face of the second mounting end, and a sliding groove is formed in the sliding block.

Preferably, the box body is made in an integrated forming mode.

Preferably, the side surface of the first mounting end is provided with a heat dissipation port, and the heat dissipation port is distributed on the outer side of the mounting cavity and is communicated with the mounting cavity; a plurality of first horizontal strengthening rib and a plurality of first vertical strengthening rib distribute in the outside in shaft hole.

Compared with the prior art, the beneficial effects of the utility model reside in that: the first mounting end can be provided with a motor and a spindle, and the second mounting end can be provided with a screw rod transmission mechanism on a machine tool, so that the spindle and a transmission part can operate independently, and the operation process is not interfered with each other and is relatively stable. In addition, a plurality of first transverse reinforcing ribs and a plurality of first longitudinal reinforcing ribs are arranged outside the first mounting end for mounting the motor and the spindle, and the first mounting end is connected with the second mounting end through the triangular reinforcing ribs, so that the overall weight of the box body can be reduced, and the overall strength of the box body can be guaranteed.

Drawings

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

fig. 2 is a schematic view of another perspective structure of the present invention;

fig. 3 is a cross-sectional view of the present invention.

In the figure: 10. a first mounting end; 11. a first transverse stiffener; 12. a first longitudinal reinforcing rib; 13. a heat dissipation port; 14. a mounting cavity; 15. a shaft hole; 20. a second mounting end; 21. perforating the hole; 22. mounting a sheet; 23. a chute; 30. a triangular reinforcing rib; 40. a reinforcement section; 41. a side plate; 42. a suspension ring hole; 43. a second transverse reinforcing rib; 44. a second longitudinal stiffener.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

a headstock of a machining center, as shown in fig. 1, 2 and 3, includes a housing having one end formed as a first mounting end 10 and the other end formed as a second mounting end 20. Specifically, the first mounting end 10 is provided with a mounting cavity 14 and a shaft hole 15, the mounting cavity 14 and the shaft hole 15 are distributed vertically and penetrate through, and the inner diameter of the mounting cavity 14 is larger than that of the shaft hole 15. The second mounting end 20 is provided with a mounting seat, a through hole 21 is formed in the mounting seat, and the through hole 21 can be used for an external nut to be through connected and fixed.

In addition, a plurality of first transverse reinforcing ribs 11 and a plurality of first longitudinal processing ribs are arranged outside the first mounting end 10, and the plurality of first transverse reinforcing ribs 11 are distributed at intervals in the height direction of the first mounting end 10; a plurality of first longitudinal processing ribs are distributed at intervals in the circumferential direction of the first mounting end 10; the first mounting end 10 is engaged with the second mounting end 20 by a triangular rib 30.

On the basis of the structure, use the utility model discloses a during machining center's headstock, this headstock specifically can be applied to machining center's lathe on, when the assembly, can be with processing main shaft cross-under in shaft hole 15, and spindle motor then the mountable is in installation cavity 14, and spindle motor's pivot and main shaft are connected. Meanwhile, a nut of a screw rod transmission mechanism on the machine tool is penetrated in the through hole 21 and fixed, the screw rod is driven to rotate through the screw rod driven by a screw rod motor, the screw rod can be driven to rotate, the nut can be guided to move up and down through a guide mechanism in the screw rod rotating process, and then the box body is driven to move up and down integrally, so that the main shaft moves up and down to process.

It should be noted that the first mounting end 10 can mount a motor and a spindle, and the second mounting end 20 can mount a screw transmission mechanism on a machine tool, so that the spindle and the transmission component operate independently, and the operation process is not interfered with each other and is relatively stable. In addition, a plurality of first transverse reinforcing ribs 11 and a plurality of first longitudinal reinforcing ribs 12 are arranged outside the first mounting end 10 for mounting the motor and the spindle, and the first mounting end 10 is connected with the second mounting end 20 through the triangular reinforcing ribs 30, so that the overall weight of the box body can be reduced, and the overall strength of the box body can be ensured.

Further, a reinforcing section 40 may be disposed between the first mounting end 10 and the second mounting end 20, wherein the reinforcing section 40 includes two side plates 41, a plurality of second transverse reinforcing ribs 43 and a plurality of second longitudinal reinforcing ribs 44, the two side plates 41 are respectively connected to two sides of the first mounting end 10 and the second mounting end 20, the plurality of second transverse reinforcing ribs 43 are connected between the two side plates 41, and the plurality of second transverse reinforcing ribs 43 are spaced apart from each other in the height direction of the side plates 41; the second longitudinal beads 44 are connected between the plurality of second transverse beads 43. On this structure basis, the first installation end 10 and the second installation end 20 of box alright link up through two curb plates 41, and two curb plates 41 link up through a plurality of horizontal strengthening ribs 43 of second, strengthen fixedly through a plurality of vertical strengthening ribs 44 of second simultaneously, and the structural strength of formation is great, and whole quality is lighter.

More specifically, a suspension ring hole 42 may be further provided on the side plate 41; the suspension loop holes 42 on the two side plates 41 are correspondingly arranged, connecting wires can penetrate through the suspension loop holes 42 of the two side plates 41, the box body can be lifted by adopting a lifting mode through the connecting wires, the box body can be turned over, and the operation is convenient.

Further, the mounting base in this embodiment includes a connecting block and two mounting pieces 22, the two mounting pieces 22 are disposed at an interval on the side of the second mounting end 20, the connecting block is connected between the two mounting pieces 22, and the through hole 21 is disposed on the connecting block. Therefore, the mounting seat is formed by processing two mounting pieces 22 in a connecting block mode, and then the connecting block is provided with the through hole 21, so that the mounting seat is convenient to process. And in the nut is installed to the through hole 21, the two installation sheets 22 can be protected outside the nut, and the installation structure of the nut is relatively stable.

Preferably, a sliding block is arranged on the side surface of the second mounting end 20 in the embodiment, and a sliding groove 23 is arranged on the sliding block, so that the sliding groove 23 can be used for sliding assembly of a sliding rod on a machine tool, when the screw rod rotates, the rotation of the nut can be guided and converted into up-and-down movement under the sliding fit of the sliding rod and the sliding groove 23, and the assembly is convenient.

Preferably, the box body is made in an integrated forming mode, and compared with a structure formed by assembling parts such as bolts, the rigidity is better, and therefore the integral precision and the stability are better.

Further, still can be equipped with thermovent 13 on first installation end 10 side, thermovent 13 distributes in the outside of installation cavity 14 and link up with installation cavity 14, so, spindle motor is driving the main shaft and is rotating the in-process, and the heat that produces can be by thermovent 13 effluvium, avoids spindle motor's the too high of work heat, increase of service life.

In addition, the plurality of first transverse reinforcing ribs 11 and the plurality of first longitudinal reinforcing ribs 12 are distributed on the outer side of the shaft hole 15, and the weight of the first mounting end 10 is large after the spindle motor is assembled, so that the center of mass is located at the upper part, the plurality of first transverse reinforcing ribs 11 and the plurality of first longitudinal reinforcing ribs 12 are arranged on the outer side of the shaft hole 15 located at the lower end, the center of the lower end can be weighted, the integral center of mass of the box body moves downwards relatively, the load required by transmission is smaller, and the rigidity of the box body is.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The main spindle box of the machining center is characterized by comprising a box body, wherein one end of the box body is formed into a first mounting end, and the other end of the box body is formed into a second mounting end; the first mounting end is provided with a mounting cavity and a shaft hole, and the mounting cavity and the shaft hole are distributed up and down and are communicated; the inner diameter of the mounting cavity is larger than that of the shaft hole; the second mounting end is provided with a mounting seat, and a through hole for the external nut to be connected in a penetrating way is formed in the mounting seat; a plurality of first transverse reinforcing ribs and a plurality of first longitudinal processing ribs are arranged outside the first mounting end, and the plurality of first transverse reinforcing ribs are distributed at intervals in the height direction of the first mounting end; the plurality of first longitudinal processing ribs are distributed at intervals in the circumferential direction of the first mounting end; the first mounting end is connected with the second mounting end through a triangular reinforcing rib.

2. The main spindle box of the machining center according to claim 1, wherein a reinforcing section is disposed between the first mounting end and the second mounting end, the reinforcing section includes two side plates, a plurality of second transverse ribs and a plurality of second longitudinal ribs, the two side plates are respectively connected to two sides of the first mounting end and the second mounting end; the plurality of second transverse reinforcing ribs are connected between the two side plates and are distributed at intervals in the height direction of the side plates; and a second longitudinal reinforcing rib is connected among the second transverse reinforcing ribs.

3. The main spindle box of a machining center according to claim 2, wherein a suspension ring hole is provided on the side plate; the suspension ring holes on the two side plates are correspondingly arranged.

4. The main spindle box of a machining center according to any one of claims 1 to 3, wherein the mounting seat includes a connecting block and two mounting pieces, the two mounting pieces are spaced apart from each other at a side of the second mounting end, and the connecting block is connected between the two mounting pieces; the through hole is formed in the connecting block.

5. The main spindle box of a machining center according to any one of claims 1 to 3, wherein a slide block is provided on a side surface of the second mounting end, and a slide groove is provided on the slide block.

6. A headstock for a machining center according to any one of claims 1 to 3 wherein said housing is formed in one piece.

7. The spindle box of the machining center according to any one of claims 1 to 3, wherein a side face of the first mounting end is provided with a heat dissipation port, and the heat dissipation port is distributed outside the mounting cavity and is communicated with the mounting cavity; a plurality of first horizontal strengthening rib and a plurality of first vertical strengthening rib distribute in the outside in shaft hole.