CN210996526U

CN210996526U - Special boring cutter tool

Info

Publication number: CN210996526U
Application number: CN201921921446.2U
Authority: CN
Inventors: 陈俊峰; 崔青青; 赵艺文; 李丽娟; 阿亚鸽
Original assignee: Luoyang Changfeng Electronic Technology Co ltd
Current assignee: Luoyang Changfeng Electronic Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-14
Anticipated expiration: 2029-11-08

Abstract

A special boring tool relates to the field of boring tools and comprises a sleeve rod, a transmission shaft, a rotating shaft and a rotating shaft fixing block, wherein a square groove is formed in the end surface of one end of the sleeve rod, a circular hole is formed in the end surface of the other end of the sleeve rod, a tool mounting hole is formed in one side surface of the square groove, and a rotating shaft positioning hole is formed in the other side surface, opposite to the square groove, of the square groove; the middle part of the rotating shaft fixing block is fixed with the loop bar, and the inner end of the rotating shaft fixing block is provided with a rotating shaft fixing hole; a first centripetal bearing is arranged at the inner end of the rotating shaft, a second centripetal bearing is arranged on the shaft body in the middle of the rotating shaft, a first helical gear is fixed on the shaft body at the outer end of the rotating shaft, and a clamping piece is arranged on the outer end face of the rotating shaft; a second bevel gear is fixed on the shaft body at the inner end of the transmission shaft, the second bevel gear is meshed with the first bevel gear, a third radial bearing is installed on the shaft body in the middle of the transmission shaft, and the shaft body at the outer end of the transmission shaft is rotatably sealed with the outer end of the loop bar through a sealing device; the special boring tool can be used for processing the inner wall of a shell or a deep hole, is convenient to disassemble and assemble, and is stable in structure and high in processing precision.

Description

Special boring cutter tool

Technical Field

The utility model belongs to the technical field of the boring cutter instrument and specifically relates to a special boring cutter instrument for processing deep hole inner wall is related to.

Background

The boring cutter is one of boring cutters, is generally a round handle, is also a square cutter bar used for larger workpieces, is used for inner hole machining, hole expanding, profiling and the like in the most common occasions, and can be used on a boring machine, a lathe or a milling machine; the boring cutter head has multiple mounting modes, wherein an embedded cutter head with a mounting hole in the center is commonly used, can be sleeved on a rotating shaft and is positioned and fastened through a clamping piece, and the dismounting is convenient; the common boring tool is only used for processing the outer surface of a workpiece, and a deep hole boring tool is also used, the boring tool is conveyed to the hole depth of the workpiece through a sleeve rod to process a deep hole, but the deep hole boring tool can only process towards the hole along the axial direction of the existing deep hole, and the tool bit cannot be steered to process the inner wall surface of the deep hole; for example, when a simulated missile shell is machined, because the diameter of the shell is smaller, people cannot enter the shell, when the inner wall surface of the shell needs to be machined, a cutter head perpendicular to the axis of the loop bar needs to be installed at the inner end of the loop bar, and after the inner end of the loop bar extends into the shell, the cutter head can be machined corresponding to the inner wall surface of the shell.

Disclosure of Invention

In order to overcome not enough among the background art, the utility model discloses a special boring cutter instrument can not only process the inner wall of casing or deep hole, and the dismouting of being convenient for moreover, and the structure is firm, and the machining precision is high.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a special boring tool comprises a sleeve rod, a transmission shaft, a rotating shaft and a rotating shaft fixing block, wherein a square groove which is matched with the rotating shaft fixing block and is inserted into is formed in the end face of one end of the sleeve rod, a circular hole which penetrates through the square groove along the axial direction of the sleeve rod is formed in the center of the end face of the other end of the sleeve rod, a tool mounting hole with an axis which is perpendicular to the axis of the circular hole is formed in one side face of the square groove, and a rotating shaft positioning hole which is coaxial with the tool mounting hole is formed in the other; the middle part of the rotating shaft fixing block is detachably and fixedly connected with the loop bar through a pin shaft, and a rotating shaft fixing hole coaxial with the rotating shaft positioning hole is formed in the inner end of the rotating shaft fixing block; the axis of the rotating shaft is coaxial with the axis of the rotating shaft fixing hole, a first radial bearing is arranged between the inner wall of the rotating shaft positioning hole and the corresponding rotating shaft body, a second radial bearing is arranged between the inner wall of the rotating shaft fixing hole and the corresponding rotating shaft body, a first helical gear with inward teeth is coaxially detachably fixed on the rotating shaft body between the rotating shaft fixing hole and the cutter mounting hole, a step for accommodating the first helical gear is arranged on one side of the rotating shaft fixing block corresponding to the cutter mounting hole, and a clamping piece for mounting a cutter head is detachably and fixedly connected to the end part of the rotating shaft corresponding to the cutter mounting hole; the coaxial circular hole of locating of transmission shaft, the inner shaft body of transmission shaft stretches into square groove and coaxial detachable and is fixed with tooth second helical gear inwards, second helical gear and first helical gear meshing can drive first helical gear and rotate, install third radial bearing between the shaft body in the middle part of circular port and the transmission shaft that corresponds, the outer end shaft body of transmission shaft passes through sealing device and the outer end rotation seal of loop bar.

Further, the outer end face of the rotating shaft fixing block is provided with a threaded hole which is coaxial with the transmission shaft, and the threaded hole is connected with the inner end of a supporting rod through a screw.

Furthermore, a baffle plate used for sealing the inner end of the sleeve rod is fixed on the rod body of the supporting rod.

Further, the outer end of bracing piece is equipped with the mounting panel, the face center of mounting panel is equipped with the through-hole that adaptation bracing piece outer end passed, the mounting panel passes through the mount pad and takes machined part inner wall fixed connection.

Further, the loop bar corresponds the side that sets up the cutter mounting hole and is equipped with the guiding gutter along the loop bar axial, the inslot of guiding gutter can be dismantled and is fixed with condenser tube, condenser tube's the inner mouth of pipe corresponds with the cutter mounting hole, condenser tube's outer end extends to loop bar outer end and overlaps and be equipped with the quick-operation joint that is used for connecting water intake pipe.

Further, the first radial bearing and the second radial bearing are respectively provided with two.

Furthermore, the third axial bearings are provided with two third axial bearings which are respectively close to two ends of the transmission shaft.

Further, the third axial bearing is provided as an angular contact radial bearing.

Furthermore, the rotating shaft is fixedly connected with the clamping piece through a screw screwed into the end face of the rotating shaft.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a special boring cutter instrument, with the pivot through first radial bearing and second radial bearing fix respectively in pivot locating hole and pivot fixed orifices, guarantee the pivot and rotate steadily, pass through the third radial bearing with the transmission shaft and fix in the circular port, guarantee the transmission shaft and rotate steadily, and under the condition that pivot axis and transmission shaft axis intersect perpendicularly, utilize the second helical gear of transmission shaft inner and the first helical gear meshing of pivot outer end, when making the transmission shaft rotate under the drive of drive arrangement, can drive the pivot and rotate, and then drive the boring cutter of pivot outer end installation and carry out the processing operation, thereby realize the utility model discloses go deep into casing or deep hole, carry out the effect of processing to its inner wall; simultaneously, the rotating shaft fixing block and the sleeve rod are detachably fixed through the pin shaft, so that the whole boring cutter tool is convenient to disassemble and assemble, stable in connection, stable in transmission and high in machining precision, the clamping piece is detachably fixed with the rotating shaft through the screw, the tool bit of the boring cutter is convenient to replace, and the boring cutter tool is more convenient to use.

Drawings

Fig. 1 is a schematic diagram of the present invention.

In the figure: 1. a loop bar; 101, a circular hole; 102. a square groove; 103. a rotating shaft positioning hole; 104. a cutter mounting hole; 2. a second radial bearing; 3. a first radial bearing; 4. a rotating shaft; 5. a rotating shaft fixing block; 501. a rotating shaft fixing hole; 6. a pin shaft; 7. a sealing device; 8. a third radial bearing; 9. a drive shaft; 10. a cooling water pipe; 11. a quick connector; 12. a diversion trench; 13. a second helical gear; 14. a first helical gear; 15. a screw; 16. a fastener; 17. a support bar; 18. a baffle plate; 19. mounting a plate; 20. and (7) mounting a seat.

Detailed Description

The present invention can be explained in detail by the following embodiments, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention, and the present invention is not limited to the following embodiments; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present application, and for the convenience of describing the present invention, it is not intended to indicate or imply that the device or element referred to must have a particular orientation:

the special boring tool described with reference to fig. 1 comprises a sleeve rod 1, a transmission shaft 9, a rotating shaft 4 and a rotating shaft fixing block 5, wherein a square groove 102 into which the rotating shaft fixing block 5 is inserted is formed in an end surface of one end of the sleeve rod 1, and the rotating shaft fixing block 5 is inserted into one side, close to the end surface, of the square groove 102, so that the rotating shaft fixing block 5 can be conveniently disassembled and assembled; a circular hole 101 which penetrates through the square groove 102 along the axial direction of the loop bar 1 is formed in the center of the end face of the other end of the loop bar 1, a cutter mounting hole 104 with an axis which is perpendicular to the axis of the circular hole 101 is formed in one side face of the square groove 102, a rotating shaft positioning hole 103 which is coaxial with the cutter mounting hole 104 is formed in the other side face, opposite to the square groove 102, of the loop bar 1, and the cutter mounting hole 104 and the rotating shaft positioning hole 103 are both round holes and penetrate through the outer wall of the;

the middle part of the rotating shaft fixing block 5 is detachably and fixedly connected with the loop bar 1 through a pin shaft 6, namely, connecting holes are formed in the middle part of the rotating shaft fixing block 5 and the corresponding positions of the loop bar 1 along the radial direction of the loop bar 1, the rotating shaft fixing block 5 and the loop bar 1 are fixed through inserting the pin shaft 6 into the connecting holes, and the rotating shaft fixing block 5 is convenient to disassemble and assemble; the inner end of the rotating shaft fixing block 5 is provided with a rotating shaft fixing hole 501 coaxial with the rotating shaft positioning hole 103, and the diameter of the rotating shaft fixing hole 501 is smaller than that of the rotating shaft positioning hole 103, so that a bearing is convenient to mount; according to the requirement, the outer end face of the rotating shaft fixing block 5 is provided with a threaded hole which is coaxial with the transmission shaft 9, the threaded hole is connected with the inner end of a support rod 17 in a threaded manner, so that the support rod 17 is convenient to disassemble and assemble, the support rod 17 fixes the inner end of the loop bar 1, and the stability of the whole loop bar is ensured; in addition, a baffle 18 for sealing the inner end of the sleeve rod 1 is fixed on the rod body of the support rod 17, and after the support rod 17 is screwed tightly, the baffle 18 is just attached and sealed with the end face of the inner end of the sleeve rod 1; in addition, the outer end of the supporting rod 17 is provided with an installation plate 19, the center of the plate surface of the installation plate 19 is provided with a through hole which is matched with the outer end of the supporting rod 17 to penetrate, the installation plate 17 is fixedly connected with the inner wall of the workpiece to be machined through an installation seat 20, the installation plate 17 can be fixed with the inner end of a deep hole or a shell through the installation seat 20, the supporting rod 17 can be conveniently inserted into the through hole of the installation plate, and the;

the axis of the rotating shaft 4 is coaxial with the axis of the rotating shaft fixing hole 501, a first radial bearing 3 is arranged between the inner wall of the rotating shaft positioning hole 103 and the corresponding shaft body of the rotating shaft 4, the inner end of the first radial bearing 3 can be positioned through a step hole correspondingly arranged in the rotating shaft fixing hole 501, and the outer end of the first radial bearing can be positioned through a set screw screwed in the end surface of the inner end of the rotating shaft 4; two first radial bearings 3 are arranged as required to ensure the rotating shaft 4 to rotate stably; a second radial bearing 2 is arranged between the inner wall of the rotating shaft fixing hole 501 and the shaft body of the corresponding rotating shaft 4, the inner end of the second radial bearing 2 can be positioned through a step hole correspondingly arranged in the rotating shaft fixing hole 501, and the outer end of the second radial bearing 2 can be positioned through a shaft sleeve abutted against the first bevel gear 14; two second radial bearings 2 are arranged as required to ensure the rotating shaft 4 to rotate stably;

a first bevel gear 14 with inward teeth is coaxially and detachably fixed on the shaft body of the rotating shaft 4 between the rotating shaft fixing hole 501 and the cutter mounting hole 104, a step for accommodating the first bevel gear 14 is arranged on one side, corresponding to the cutter mounting hole 104, of the rotating shaft fixing block 5, a clamping piece 16 for mounting a cutter head is fixedly connected to the end face, close to the cutter mounting hole 104, of the rotating shaft 4 through a screw 15, and the clamping piece 16 needs to be dismounted by screwing out the screw 15 when the cutter head is mounted; according to the requirement, the side surface of the sleeve rod 1, which is correspondingly provided with the cutter mounting hole 104, is provided with a flow guide groove 12 along the axial direction of the sleeve rod 1, a cooling water pipe 10 is detachably fixed in the groove of the flow guide groove 12, an inner end pipe orifice of the cooling water pipe 10 corresponds to the cutter mounting hole 104, the outer end of the cooling water pipe 10 extends to the outer end of the sleeve rod 1 and is sleeved with a quick connector 11 for connecting a water inlet pipeline, the outer end of the cooling water pipe 10 is communicated with the water inlet pipeline through the quick connector 11, and the cutter head can be cooled by sprinkling when the cutter head works;

the transmission shaft 9 is coaxially arranged in the circular hole 101, the inner end shaft body of the transmission shaft 9 extends into one side of the square groove 102 far away from the inner end surface of the loop bar 1 and is coaxially detachably fixed with a second bevel gear 13 with inward teeth, the second bevel gear 13 is meshed with the first bevel gear 14 and can drive the first bevel gear 14 to rotate, in addition, the outer end of the transmission shaft 9 is connected with a driving device which drives the transmission shaft 9 to rotate by taking the axis thereof as the center, under the condition that the axis of the rotating shaft 4 is vertically crossed with the axis of the transmission shaft 9, the second bevel gear 13 at the inner end of the transmission shaft 9 is meshed with the first bevel gear 14 at the outer end of the rotating shaft 4, so that the rotating shaft 4 is driven to rotate when the transmission shaft 9 is driven to rotate by the driving device, further driving the boring cutter arranged at the outer end of the rotating shaft 4 to carry out processing operation, thereby realizing the function that the utility model extends into the shell or the deep hole to process the inner wall of the shell or the deep hole;

a third radial bearing 8 is arranged between the circular hole 101 and the middle shaft body of the corresponding transmission shaft 9, two third radial bearings 8 are arranged according to requirements and are respectively close to two ends of the transmission shaft 9, the third radial bearings 8 are arranged in the step air arranged at two ends of the circular hole 101 through bearing seats, and the third radial bearings 8 are positioned by installing baffle plates at the outer ends of the third radial bearings 8; in addition, the third radial bearing 8 is an angular contact radial bearing, and the two angular contact radial bearings are used in pairs, are reversely mounted, bear radial load and bidirectional axial load, and are particularly suitable for bearing torque; the outer end shaft body of transmission shaft 9 passes through sealing device 7 and the outer end rotary seal of loop bar 1, under the circumstances that does not hinder transmission shaft 9 pivoted, guarantees oil-tight, prevents that outside foul from getting into.

The part of the utility model not detailed is prior art.

Claims

1. A special boring cutter tool is characterized in that: the tool comprises a sleeve rod (1), a transmission shaft (9), a rotating shaft (4) and a rotating shaft fixing block (5), wherein a square groove (102) matched with the rotating shaft fixing block (5) in an inserted mode is formed in one end face of the sleeve rod (1), a circular hole (101) penetrating through the square groove (102) along the axial direction of the sleeve rod (1) is formed in the center of the other end face of the sleeve rod (1), a tool mounting hole (104) with the axis perpendicular to that of the circular hole (101) is formed in one side face of the square groove (102), and a rotating shaft positioning hole (103) coaxial with the tool mounting hole (104) is formed in the other side face, opposite to the square groove (102); the middle part of the rotating shaft fixing block (5) is detachably and fixedly connected with the loop bar (1) through a pin shaft (6), and a rotating shaft fixing hole (501) coaxial with the rotating shaft positioning hole (103) is formed in the inner end of the rotating shaft fixing block (5); the axial line of the rotating shaft (4) is coaxial with the axial line of the rotating shaft fixing hole (501), a first radial bearing (3) is arranged between the inner wall of the rotating shaft positioning hole (103) and the corresponding shaft body of the rotating shaft (4), a second radial bearing (2) is arranged between the inner wall of the rotating shaft fixing hole (501) and the corresponding shaft body of the rotating shaft (4), a first bevel gear (14) with inward teeth is coaxially and detachably fixed on the shaft body of the rotating shaft (4) between the rotating shaft fixing hole (501) and the cutter mounting hole (104), a step for accommodating the first bevel gear (14) is arranged on one side of the rotating shaft fixing block (5) corresponding to the cutter mounting hole (104), and a clamping piece (16) for mounting a cutter head is detachably and fixedly connected to the end part of the rotating shaft (4) corresponding to the cutter mounting hole; the utility model discloses a bearing, including transmission shaft (9), square groove (102), second helical gear (13) that tooth is fixed with inwards, transmission shaft (9) are coaxial to be located in circular port (101), the inner shaft body of transmission shaft (9) stretches into square groove (102) and coaxial can dismantle and be fixed with tooth second helical gear (13) inwards, second helical gear (13) and first helical gear (14) meshing and can drive first helical gear (14) and rotate, install third radial bearing (8) between circular port (101) and the transmission shaft (9) middle part shaft body that corresponds, the outer end shaft body of transmission shaft (9) passes through sealing device (7) and the outer end rotary seal of loop bar (1).

2. The special boring tool as claimed in claim 1, wherein: the outer end face of the rotating shaft fixing block (5) is provided with a threaded hole coaxial with the transmission shaft (9), and the threaded hole is in threaded connection with the inner end of a supporting rod (17).

3. The special boring tool as claimed in claim 2, wherein: a baffle (18) used for sealing the inner end of the sleeve rod (1) is fixed on the rod body of the supporting rod (17).

4. The special boring tool as claimed in claim 2, wherein: the outer end of bracing piece (17) is equipped with mounting panel (19), the face center of mounting panel (19) is equipped with the through-hole that adaptation bracing piece (17) outer end passed, mounting panel (19) pass through mount pad (20) and take machined part inner wall fixed connection.

5. The special boring tool as claimed in claim 1, wherein: the side that loop bar (1) corresponds and sets up cutter mounting hole (104) is equipped with guiding gutter (12) along loop bar (1) axial, the inslot of guiding gutter (12) can be dismantled and is fixed with cooling water pipe (10), the inner mouth of pipe and cutter mounting hole (104) of cooling water pipe (10) correspond, the outer end of cooling water pipe (10) extends to loop bar (1) outer end and cover and is equipped with quick-operation joint (11) that are used for connecting the inlet channel.

6. The special boring tool as claimed in claim 1, wherein: the first radial bearing (3) and the second radial bearing (2) are respectively provided with two.

7. The special boring tool as claimed in claim 1, wherein: and two third radial bearings (8) are arranged and are respectively close to two ends of the transmission shaft (9).

8. The special boring tool as claimed in claim 1, wherein: the third radial bearing (8) is an angular contact radial bearing.

9. The special boring tool as claimed in claim 1, wherein: the rotating shaft (4) is fixedly connected with the clamping piece (16) through a screw (15) screwed into the end surface of the rotating shaft.