CN213033706U

CN213033706U - Device for boring deep hole

Info

Publication number: CN213033706U
Application number: CN202021879759.9U
Authority: CN
Inventors: 甘元江; 霍迎春; 聂夫
Original assignee: Chongqing Nachuan Haiyu Machinery Co ltd
Current assignee: Chongqing Nachuan Haiyu Machinery Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-04-23
Anticipated expiration: 2030-09-01

Abstract

The utility model provides a device for boring deep holes, which comprises a boring cutter bar arranged on a machine tool, wherein the boring cutter bar can rotate and move in a telescopic way under the driving of the machine tool, and a boring cutter mounting part for mounting a boring cutter is arranged on the boring cutter bar; the boring tool comprises a boring tool mounting portion and is characterized by further comprising a first support, wherein a bearing bush mounting base is arranged on the first support, a bearing bush is arranged on the bearing bush mounting base, the boring tool bar is movably sleeved in the bearing bush, and the bearing bush is arranged between the boring tool mounting portion and the free end of the boring tool bar. The utility model provides a boring cutter arbor warp in the work and shake, influence the machining precision's of the deep trompil of boring problem during the deep trompil of boring.

Description

Device for boring deep hole

Technical Field

The utility model relates to the technical field of machining, especially, relate to a wear equipment of boring deep hole.

Background

When a boring machine is used for boring deep holes, the boring rod is too long, the rigidity of the boring rod is poor, and the boring rod is easy to deform and shake, so that the precision of the machined holes is not high. In order to improve the processing precision of the deep hole, it is necessary to design an auxiliary device to improve the processing precision of the deep hole.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides a wear equipment of boring deep hole, its problem that the machining precision is not high of having solved dark trompil.

According to the embodiment of the utility model, a wear equipment of boring deep hole, including the boring cutter pole that sets up on the lathe, the boring cutter pole can rotate and the concertina movement under the drive of lathe, be provided with the boring cutter installation department of installation boring cutter on the boring cutter pole;

the boring tool comprises a boring tool mounting portion and is characterized by further comprising a first support, wherein a bearing bush mounting base is arranged on the first support, a bearing bush is arranged on the bearing bush mounting base, the boring tool bar is movably sleeved in the bearing bush, and the bearing bush is arranged between the boring tool mounting portion and the free end of the boring tool bar.

Compared with the prior art, the utility model discloses following beneficial effect has:

through set up the axle bush mount pad on first support, the boring cutter arbor passes the axle bush on the axle bush mount pad, has increased a restriction point on the boring cutter arbor in other words for the rigidity of boring cutter arbor is strengthened, and deformation and shake reduce in work, have improved the precision of the deep trompil of boring.

As an improved scheme, an oil containing cup is further arranged on the bearing bush mounting seat, and oil passages which are communicated with each other are arranged on the oil containing cup, the bearing bush mounting seat and the bearing bush, so that the oil containing cup is communicated with the inside of the bearing bush.

The improvement has the effect of lubricating the joint of the bearing bush and the boring cutter rod.

As an improvement, the bearing shell mounting seat comprises a bearing shell seat and a bearing shell cover.

The improvement has the effect that the bearing bush is arranged between the bearing bush seat and the bearing bush cover, so that the bearing bush is convenient to replace and maintain.

As an improved scheme, the boring device further comprises a second support, wherein a half bearing bush is arranged on the second support, and the free end of the boring cutter rod is supported on the half bearing bush.

The improved boring device has the advantages that the free end of the boring cutter rod is semi-supported, so that the rigidity of the boring cutter rod is further enhanced, the deformation and the vibration are reduced in the working process, and the boring depth tapping precision is improved.

As an improved scheme, a chromium coating is further arranged on the boring cutter rod and is positioned between the free end of the boring cutter rod and the boring cutter mounting part.

The improvement has the effect that the chromium coating has good wear resistance and can improve the normal working time.

As an improved scheme, a chamfer is arranged on the free end of the boring cutter rod.

The improved structure has the effect that when the boring cutter rod moves telescopically, the chamfer plays a role in guiding when the free end of the boring cutter rod passes through the bearing bush.

Further, the chamfer is between 4 ° and 6 °.

Drawings

Fig. 1 is a schematic structural diagram of the device for boring a deep hole according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Fig. 3 is an enlarged schematic view of fig. 1 at D.

In the above drawings: 1. boring a cutter bar; 2. a first bracket; 3. a bearing bush seat; 4. a bearing cap; 5. bearing bushes; 6. a bolt; 7. a bolt; 8. a workpiece; 9. a pin; 10. a second bracket; 11. half bearing shells; 12. filling an oil cup; 13. a boring cutter mounting part.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1 and 3, the embodiment of the utility model provides a wear equipment of boring deep hole, boring cutter arbor 1 sets up on the drilling machine, is provided with the boring cutter installation department 13 of installation boring cutter on boring cutter arbor 1, and boring cutter arbor 1 can rotate and concertina movement under the drive of drilling machine to bore the trompil to work piece 8. A bearing bush mounting seat is mounted on the first support 2 through a bolt 6, a bearing bush 5 is arranged in the bearing bush mounting seat, the boring cutter rod 1 is movably sleeved in the bearing bush 5, the bearing bush 5 is located between the boring cutter mounting portion 13 and the free end of the boring cutter rod 1, and the boring cutter mounting portion 13 comprises a plurality of step holes internally provided with threads.

As shown in fig. 1 to 3, the bearing bush mounting seat includes a bearing bush seat 3 and a bearing bush cap 4, the bearing bush cap 4 is rotatably coupled to the bearing bush seat 3 by a pin 9, and the other end of the bearing bush cap 4 is coupled to the bearing bush seat 3 by a bolt 7. The bearing bush cover 4 is further in threaded connection with an oil containing cup 12, and the oil containing cup 12, the bearing bush cover 4 and the bearing bush 5 are all provided with oil ducts which are communicated with each other, so that the oil containing cup 12 is communicated with the inside of the bearing bush 5, and lubricating oil in the oil containing cup 12 can lubricate the joint surface of the bearing bush 5 and the boring cutter rod 1.

As shown in fig. 1, in order to further enhance the rigidity of the boring bar 1, a second bracket 10 is further provided at the free end of the boring bar 1, a half bush 11 is provided on the second bracket 10, and the free end of the boring bar 1 is supported on the half bush 11. The free end of the boring bar 1 is provided with a chamfer angle C, which is between 4 ° and 6 °, and may be typically 5 °.

In order to enhance the wear resistance of the surface of the boring bar, a chromium plating layer is provided between the free end of the boring bar 1 and the boring mounting portion 13, i.e., between the sections B in fig. 1.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The device for boring the deep hole in the penetrating way is characterized by comprising a boring cutter bar (1) arranged on a machine tool, wherein the boring cutter bar (1) can rotate and move in a telescopic way under the driving of the machine tool, and a boring cutter mounting part (13) for mounting a boring cutter is arranged on the boring cutter bar (1);

still include first support (2), be provided with the axle bush mount pad on first support (2), be provided with axle bush (5) on the axle bush mount pad, boring cutter arbor (1) movably cup joints in axle bush (5), axle bush (5) arrange in boring cutter installation department (13) with between the free end of boring cutter arbor (1).

2. The deep hole boring device according to claim 1, wherein the bearing bush mounting seat is further provided with an oil cup (12), and the oil cup (12), the bearing bush mounting seat and the bearing bush (5) are provided with oil passages communicated with each other, so that the oil cup (12) is communicated with the inside of the bearing bush (5).

3. An apparatus for through-boring deep holes according to claim 1, wherein the bearing bush mounting seat comprises a bearing bush seat (3) and a bearing bush cover (4).

4. A device for through-boring deep holes according to claim 1, 2 or 3, further comprising a second support (10), wherein a half shell (11) is arranged on the second support (10), and the free end of the boring bar (1) is supported on the half shell (11).

5. The deep hole through boring device as claimed in claim 1, characterized in that a chromium coating is provided on the boring bar (1), said chromium coating being located between the free end of the boring bar (1) and the boring mounting (13).

6. A device for through-boring deep holes according to claim 1, characterised in that the free end of the boring bar (1) is provided with a chamfer.

7. The apparatus of claim 6, wherein the chamfer is between 4 ° and 6 °.