CN108500345A

CN108500345A - A kind of boring bar tool

Info

Publication number: CN108500345A
Application number: CN201810241163.7A
Authority: CN
Inventors: 周磊; 赵世荣; 徐德胜; 李鹤
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2018-03-22
Filing date: 2018-03-22
Publication date: 2018-09-07

Abstract

The present invention discloses a kind of boring bar tool, including shell, and the drive shaft being connected with external connection power component is equipped in the shell, and the one end of drive shaft far from external connection power component is equipped with driving portion；Further include several fixtures for being installed on shell, each fixture is located at one end in shell and is equipped with follower, and driving portion can drive each follower to rotate, to drive each fixture respective central axes of having mercy on to rotate；In each fixture, at least partly fixture is floating holder, and floating holder can carry out displacement in shell around drive shaft, to adjust its installation site.Boring bar tool provided by the present invention can carry out drilling operation, to greatly improve efficiency, the precision of drilling to multiple holes simultaneously；Floating holder can carry out displacement in shell around drive shaft, the spacing of each fixture be adjusted, to meet the boring requirement of different pitchs of holes, after position to be installed is fixed, it can ensure that the consistency of the adjacent spacing of wells, the precision of drilling are greatly improved, the qualification rate of drilled products is guaranteed.

Description

A kind of boring bar tool

Technical field

The present invention relates to drilling technique field more particularly to a kind of boring bar tools.

Background technology

Boring bar tool is the common tool in Automatic manual transmission field, is usually used cooperatively with air drill, may include collet, folder The output shaft that head is fixed on air drill provides the drill bit to match for collet when in use, you can carries out drilling operation.

However, usually only tool can only once bore a hole to existing boring bar tool in operation there are one collet, it is this There is the defect of the following aspects when in use in the boring bar tool of form：1) drilling efficiency is relatively low, when drilling hole amount is more, It needs to expend a large amount of human and material resources and time cost；2) borehole accuracy is relatively low, when one borehole operation, before and after needing guarantee Left and right 360 degree spatial dimensions in verticality, it is more demanding to the work capacity of operating personnel, and it is adjacent two drill between Away from being difficult to ensure, tend to the situation for causing the adjacent spacing of wells excessive or too small, drilled products when in use, assembled in situ Personnel are frequently necessary to carry out secondary operation to the drilling, can influence efficiency of assembling instead.

Therefore, how to provide that a kind of drilling efficiency is high, boring bar tool with high accuracy, be still that those skilled in the art urgently solve Certainly the technical issues of.

Invention content

The object of the present invention is to provide a kind of boring bar tool, the drilling efficiency of the boring bar tool is higher, precision is higher.

In order to solve the above technical problems, the present invention provides a kind of boring bar tool, including shell, be equipped in the shell with it is external The drive shaft that power part is connected, the one end of the drive shaft far from the external connection power component are equipped with driving portion；Further include Several fixtures of the shell are installed on, one end that each fixture is located in the shell is equipped with follower, the driving Portion can drive each follower rotation, to drive each fixture respective central axes of having mercy on to rotate；In each fixture, until Small part fixture is floating holder, and the floating holder can carry out displacement in the shell around the drive shaft, with adjustment Its installation site.

Boring bar tool provided by the present invention, as soon as multiple fixtures can be driven to be rotated simultaneously by drive shaft, It is to say, can drilling operation be carried out to multiple holes simultaneously, the efficiency of drilling, which can get, to be greatly improved；And it synchronizes and is bored in multiple holes When taking, being installed on the drill bit of each fixture can mutually support, the relatively easy control of verticality of drilling operation, and drilling difficulty can be big Width declines, and is more advantageous to the precision for ensureing drilling.

At least there is the floating holder of a part in the boring bar tool in what is more important, can be in shell around drive shaft Displacement is carried out, the installation site of each floating holder can be easily adjusted, and then adjust the spacing of each fixture, to meet different holes The boring requirement of spacing；After position to be installed is fixed, the distance between adjacent two fixture it was determined that can ensure that adjacent in turn The precision of the consistency of the spacing of wells, drilling is greatly improved, and the qualification rate of drilled products is guaranteed, can be largely It avoids erecting yard that drilled products are carried out with the situation of secondary operation, also advantageously improves efficiency of assembling.

Optionally, the shell includes the first shell in tubbiness, and the open top of the first shell is equipped with lid, described Lid is equipped with path aperture circumferentially；The floating holder is installed on the path aperture, and can be in the path aperture Circumferentially slide.

Optionally, the floating holder includes the follower, collet and the mounting cylinder of coaxial arrangement, and the collet stretches out The first shell, and can be rotated synchronously with the follower；The mounting cylinder is installed on the path aperture, and can be along institute Path aperture sliding is stated, the mounting cylinder is located at the limiting section that one end in the first shell is equipped with radially evagination, the peace Fitted tube is also outer to be cased with locating piece, operates the locating piece, the locating piece, the limiting section is enabled to push against the lid respectively The internal face of body, outside wall surface, to position the mounting cylinder.

Optionally, the locating piece is threadedly coupled with the mounting cylinder.

Optionally, further include pollutant baffle plate, the pollutant baffle plate is fixed on the mounting cylinder, with the sliding of the floating holder, The pollutant baffle plate can gradually block the path aperture.

Optionally, in each fixture, include at least a stationary fixture, the stationary fixture include the follower, The collet and the mounting cylinder, the mounting cylinder are fixed on the lid.

Optionally, the shell further includes tubular second shell, and the second shell and the first shell are coaxial Setting, and it is fixed on the outside wall surface of the bottom plate of the first shell；The bottom plate, which is equipped with, is connected to the first shell, described second The axis hole of shell, one end that the drive shaft is equipped with the driving portion are located in the first shell, and the other end passes through the axis The second shell is simultaneously stretched into hole.

Optionally, the peripheral wall of the second shell is equipped with several mounting holes, and each mounting hole is circumferentially spaced, also Including connector, the connector can pass through each mounting hole, and the external connection power component is fixed on described second Shell；The external connection power component includes power collet, and the peripheral wall of the second shell is equipped with handle hole, passes through the operation The elasticity of the power collet can be adjusted in hole.

Optionally, the driving portion is driving gear, and the follower is the driven tooth being meshed with the driving gear Wheel.

Optionally, the outside wall surface of the bottom plate of the first shell is equipped with level meter.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of specific implementation mode of boring bar tool provided by the present invention；

Fig. 2 is the structural schematic diagram of Fig. 1 middle casings；

Fig. 3 is the structural schematic diagram of lid in Fig. 1；

Fig. 4 is the attachment structure schematic diagram of stationary fixture, floating holder and driving portion in Fig. 1；

Fig. 5 is the structural schematic diagram of fixture in Fig. 1；

Fig. 6 is the structural schematic diagram of pollutant baffle plate；

Fig. 7 is the attachment structure schematic diagram of drive shaft and driven shaft in Fig. 1.

The reference numerals are as follows in Fig. 1-7：

1 shell, 11 first shells, 111 bottom plates, 111a axis holes, 12 second shells, 121 mounting holes, 122 handle holes, 13 lids Body, 131 path apertures, 132 location holes；

2 drive shafts, 21 driving portions；

3 fixtures, 31 floating holders, 311 followers, 312 collets, 313 mounting cylinders, 313a limiting sections, 314 locating pieces, 315 Driven shaft, 32 stationary fixtures；

4 pollutant baffle plates, 41 mounting holes.

Specific implementation mode

It is below in conjunction with the accompanying drawings and specific real in order to make those skilled in the art more fully understand technical scheme of the present invention Applying example, the present invention is described in further detail.

It is described herein it is " several " be that exponential quantity is uncertain multiple, it is usually more than two；And when using " several " table When showing the quantity of certain several component, the quantity for being not offered as these components is identical.

The words such as " first " described herein, " second ", be merely for convenience of description scheme same or like two with On structure or component, be not offered as certain particular determination to sequence.

A kind of structural schematic diagram for specific implementation mode that -7, Fig. 1 is boring bar tool provided by the present invention is please referred to Fig.1, Fig. 2 is the structural schematic diagram of Fig. 1 middle casings, and Fig. 3 is the structural schematic diagram of lid in Fig. 1, and Fig. 4 is stationary fixture, activity in Fig. 1 The attachment structure schematic diagram of fixture and driving portion, Fig. 5 are the structural schematic diagram of fixture in Fig. 1, and Fig. 6 is the structural representation of pollutant baffle plate Figure, Fig. 7 are the attachment structure schematic diagram of drive shaft and driven shaft in Fig. 1.

As shown in Figure 1, the present invention provides a kind of boring bar tool, including shell 1, it is equipped with and external connection power portion in the shell 1 The drive shaft 2 that part is connected, the one end of drive shaft 2 far from external connection power component is equipped with driving portion 21, if being also equipped in shell 1 Dry fixture 3, each fixture 3 are located at one end in shell 1 and are equipped with follower 311, and each follower 311 can with above-mentioned driving portion 21 To be sequentially connected.

Above-mentioned each fixture 3 can install matched drill bit, when external connection power component is run, may make driving Axis 2, driving portion 21 rotate synchronously, and then each follower 311 is driven to rotate, to drive the respective central axes of having mercy on of each fixture 3 to rotate, So as to be carried out at the same time drilling operation to multiple holes, the efficiency of drilling, which can get, to be greatly improved.

Moreover, when multiple holes are carried out at the same time and drill through, being installed on the drill bit of each fixture 3 can mutually support, drilling operation The relatively easy control of verticality, drilling difficulty can be greatly reduced, be more advantageous to ensure drilling precision.To be deposited on front-rear direction For two fixtures 3, verticality in the front-back direction can be positioned by being installed on the drill bit of two fixtures 3, in practical operation, it is only necessary to Ensure the verticality of left and right directions, compared with the prior art, the difficulty of drilling operation can decline to a great extent；Further, when There are three fixtures 3 and each fixture 3 is not in same straight line, and the vertical of entire plane can be positioned by being installed on the drill bit of each fixture 3 Degree, in this way, when being drilled, operating personnel only need to provide compressing along boring direction without the problem of considering further that verticality Power, operating process are more simple.

The above-mentioned description as described in the directions such as "front", "rear", "left", "right" or position relationship, is relative to operating personnel For, for operating personnel when carrying out operation, the direction where left hand, the right hand is respectively left-hand, dextrad, in the horizontal plane, with The perpendicular direction of left and right directions is front-rear direction.

What is more important, in above-mentioned each fixture 3, at least there is part fixture 3 is floating holder 31, the floating holder 31 can carry out displacement in shell 1 around drive shaft 2, easily to adjust the installation site of respective activity fixture 31, and then adjust The spacing of whole each fixture 3, so as to meet the boring requirement of different pitchs of holes.After position to be installed is fixed, adjacent two folder It was determined that can ensure that the consistency of the adjacent spacing of wells in turn, the precision of drilling is greatly improved the distance between tool 3, The qualification rate of drilled products is guaranteed, and can largely avoid erecting yard that drilled products are carried out with the feelings of secondary operation Shape also advantageously improves efficiency of assembling.

Specifically, as shown in Figure 2 and Figure 3, above-mentioned shell 1 may include the first shell 11 and lid 13 in tubbiness, lid 13 can be fixed on the open top of first shell 11 by screw etc., and are enclosed with the bottom wall of first shell 11, side wall Installation cavity, the drive mechanisms such as driving portion 21 above-mentioned and driving section 311 can be installed in the installation cavity, so, first Shell 11 is also referred to as transmission case.Lid 13 is also provided with path aperture 131 circumferentially, is installed on the path aperture Fixture 3 in 131 is above-mentioned floating holder 31, and floating holder 31 can circumferentially be slided in path aperture 131, with Just its installation site is adjusted.

It can be one-to-one relationship between path aperture 131 and floating holder 31, at this point, path aperture 131 can be arc The length in shape hole, the arcuate socket defines the active strokes range of respective activity fixture 31.Path aperture 131 and floating holder 31 it Between or one-to-many relationship, i.e. multiple floating holders 31 can be installed in a path aperture 131, the path aperture 131 is still Can be arcuate socket, but the arcuate socket should have larger arc length, to accommodate multiple floating holders 31, alternatively, the path Hole 131 or looping pit, at this point, all fixtures 3 all can be floating holder 31, each floating holder 31 can be spaced peace Loaded in the looping pit.

At least may include a stationary fixture 32 in fact, in above-mentioned each fixture 3, using as reference, to convenient Adjust the spacing between adjoining clips 3.When installation, generally circular location hole 132, geometrical clamp can be set on lid 13 Tool 32 is installed in the location hole 132.

It should be appreciated that whether differing only in for above-mentioned floating holder 31, stationary fixture 32 can be in first shell 11 It is mobile, specifically, that is, it is that fixture 3 in the installation form of lid 13, is installed on the path aperture 131 with certain stroke range Fixture 3 be floating holder 31, and it is stationary fixture 32 to be installed on the fixture 3 of location hole 132 then；In other words, it is above-mentioned about The differentiation of floating holder 31, stationary fixture 32 can't bring the structure of the two excessive difference, the two to may be used completely Identical structure can also make subtle variation according to the difference of installation form in structure, in embodiments of the present invention, activity folder Tool 31, stationary fixture 32 preferably use identical structure, in order to process, install.

By taking floating holder 31 as an example, structure is specifically referred to Fig. 4, Fig. 5, and floating holder 31 may include coaxial arrangement Follower 311, collet 312 and mounting cylinder 313, collet 312 can stretch out first shell 11, and with inside first shell 11 Follower 311 is sequentially connected by driven shaft 315, so that collet 312 can be rotated synchronously with follower 311；Mounting cylinder 313 It is not involved in the rotation of collet 312, is mainly used for positioning the installation site of floating holder 31, can lead between driven shaft 315 Bearing connection is crossed, to realize the relative rotation of the two.

Specifically, mounting cylinder 313 can be installed on path aperture 131, and can be slided along path aperture 131, mounting cylinder 313 One end in first shell 11 can be equipped with the limiting section 313a of radially evagination, and limiting section 313a is specifically as follows convex Block, annular convex shoulder etc.；Mounting cylinder 313 outer can also be cased with locating piece 314, operate locating piece 314, enable to locating piece 314, Limiting section 313a pushes against the internal face of lid 13, outside wall surface respectively, with location and installation cylinder 313, and then fixes floating holder 31 Installation site.

Above-mentioned locating piece 314 is specifically as follows silk braid, and with internal thread, the outer wall of mounting cylinder 313 can be equipped with outer spiral shell Line, when which being socketed on the outer wall of mounting cylinder 313 and gradually being tightened, silk braid can be with lid towards one end of lid 13 13 outside wall surface pushes against, and limiting section 313a is forced to be pushed against with the internal face towards the end face of lid 13 and lid 13, Jin Ergu Dingan County's fitted tube 313.

Stationary fixture 32 is roughly the same with the structure of floating holder 31, can also include follower 311, collet 312, peace Fitted tube 313 and the driven shaft 315 being connected between follower 311 and collet 312, also may be used between mounting cylinder 313 and lid 13 To be positioned with limiting section 313a using locating piece 314 above-mentioned.The difference is that due to the installation position of stationary fixture 32 It sets without adjustment, can also be determined in such a way that welding, bonding etc. are fixedly connected between mounting cylinder 313 and lid 13 Position.

Further, as shown in fig. 6, can also include pollutant baffle plate 4, pollutant baffle plate 4 be specifically as follows arc panel, thereon can be with Equipped with mounting hole 41, pollutant baffle plate 4 can be socketed on mounting cylinder 313 by mounting hole 41, then be pressed by above-mentioned locating piece 314 Tightly in the upper surface of lid 13.When the sliding in path aperture 131 of floating holder 31, pollutant baffle plate 4 can be synchronized in lid 13 Upper surface slide, and path aperture 131 is gradually blocked, to largely prevent metal fillings generated in boring procedure etc. from passing through Path aperture 131 enters in installation cavity, causes shadow to the normal operation of the drive mechanisms such as driving portion in installation cavity 21 and follower 311 It rings.

Mounting hole 41 can be set to one end of pollutant baffle plate 4, that is to say, that when pollutant baffle plate 4 is installed on floating holder 31, blocked sewage Plate 4 can be located at the side of floating holder 31.Using Fig. 1 as visual angle, floating holder 31 is located at one end of path aperture 131 in Fig. 1, is Convenient for description, in the circumferential, the position that path aperture 131 is equipped in Fig. 1 can be defined as to the downside of floating holder 31, it will be in Fig. 1 Position between floating holder 31 and stationary fixture 32 is defined as the upside of floating holder 31, and pollutant baffle plate 4 is mountable to activity The upside of fixture 31；When floating holder 31 along path aperture 131 gradually close to stationary fixture 32 when, pollutant baffle plate 4 can be blocked gradually The path aperture 131 that floating holder 31 slips over.

Certainly, which can not also exist, at this time, it is necessary to which operating personnel are periodically from floating holder 31 and path Installation cavity inside is cleared up in gap between 131 end of hole, to prevent metal detritus accumulation in installation cavity from excessively influencing The normal operation of drive mechanism.

As shown in fig. 7, in a specific embodiment, tooth can be passed through between above-mentioned drive shaft 2 and driven shaft 315 Wheel transmission, driving portion 21 can be driving gear, and follower 311 can be the driven gear being meshed with driving gear.In this way, When floating holder 31 circumferentially carries out displacement, can still be kept between the follower 311 and driving portion 21 of the floating holder 31 The relationship being meshed, effectively to avoid the interruption of power transmission, to ensure the normal work of boring bar tool provided by the present invention.

In another embodiment specific implementation mode, belt wheel transmission or chain can also be used between drive shaft 2 and driven shaft 315 Wheel transmission, by taking belt wheel transmission as an example, above-mentioned driving portion 21 can be driving pulley, and follower 311 can be driven pulley, in turn Transmission belt can be set between, to realize the transmission of power, and when floating holder 31 circumferentially carries out displacement, actively Transmission belt between belt wheel and driven pulley can remain that tensioning state, power transmission will not equally interrupt.

For boring bar tool involved in the respective embodiments described above, following present invention embodiment will combine Fig. 1, Fig. 2 couple Connection structure between boring bar tool and external connection power component provided by the present invention is further described through.

Above-mentioned shell 1 can also include tubular second shell 12, and second shell 12 can be coaxial with first shell 11 Setting, and it is fixed on the outside wall surface of the bottom plate 111 of first shell 11, using Fig. 2 as visual angle, i.e., first shell 11 can be located at second The top of shell 12；Bottom plate 111 can be equipped with the axis hole 111a of connection first shell 11, second shell 12, and drive shaft 2, which is equipped with, drives The one end in dynamic portion 21 can be located in first shell 11, and the other end can pass through axis hole 111a and stretch into second shell 12.

External connection power component is specifically as follows air drill, which may include power collet, and power collet can stretch into In two shells 12, and it is connected with drive shaft 2.The peripheral wall of second shell 12 can be equipped with several mounting holes 121, each mounting hole 121 Can be circumferentially spaced, connector can also be set, which can be screw or pin etc., when mounted, connection Part can pass through each mounting hole 121, and external connection power component is fixed on second shell 12；The peripheral wall of second shell 12 can be with Equipped with handle hole 122, the elasticity of power collet can also be adjusted by handle hole 122, in order to power collet Installation and dismounting.

It is also provided with level meter in the outside wall surface of the bottom plate 111 of first shell 11, passes through level meter operating personnel It can easily determine the levelness of 111 outside wall surface of bottom plate, and then confirm the verticality of each fixture 3, be more advantageous to guarantee drilling Precision.

It the above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as Protection scope of the present invention.

Claims

1. a kind of boring bar tool, which is characterized in that be equipped with including shell (1), in the shell (1) and be connected with external connection power component Drive shaft (2), the drive shaft (2) far from the external connection power component one end be equipped with driving portion (21)；

Further include several fixtures (3) for being installed on the shell (1), each fixture (3) is located at one end in the shell (1) It is equipped with follower (311), the driving portion (21) can drive each follower (311) to rotate, to drive each folder Has (3) rich respective central axes rotation；

In each fixture (3), at least partly fixture (3) is floating holder (31), and the floating holder (31) can be described Displacement is carried out around the drive shaft (2) in shell (1), to adjust its installation site.

2. boring bar tool according to claim 1, which is characterized in that the shell (1) includes the first shell in tubbiness (11), the open top of the first shell (11) is equipped with lid (13), and the lid (13) is equipped with path aperture circumferentially (131)；

The floating holder (31) is installed on the path aperture (131), and can circumferentially be slided in the path aperture (131) It is dynamic.

3. boring bar tool according to claim 2, which is characterized in that the floating holder (31) includes the described of coaxial arrangement Follower (311), collet (312) and mounting cylinder (313), the collet (312) stretch out the first shell (11), and can be with The follower (311) rotates synchronously；

The mounting cylinder (313) is installed on the path aperture (131), and can be slided along the path aperture (131), the installation Cylinder (313) is located at the limiting section (313a) that one end in the first shell (11) is equipped with radially evagination, the mounting cylinder (313) also outer to be cased with locating piece (314), the locating piece (314) is operated, the locating piece (314), the limit are enabled to (313a) pushes against the internal face of the lid (13), outside wall surface respectively in portion, to position the mounting cylinder (313).

4. boring bar tool according to claim 3, which is characterized in that the locating piece (314) and the mounting cylinder (313) spiral shell Line connects.

5. boring bar tool according to claim 3, which is characterized in that further include pollutant baffle plate (4), the pollutant baffle plate (4) is fixed In the mounting cylinder (313), with the sliding of the floating holder (31), the pollutant baffle plate (4) can gradually block the path Hole (131).

6. boring bar tool according to claim 3, which is characterized in that in each fixture (3), include at least a geometrical clamp Have (32), the stationary fixture (32) includes the follower (311), the collet (312) and the mounting cylinder (313), institute It states mounting cylinder (313) and is fixed on the lid (13).

7. according to any one of the claim 2-6 boring bar tools, which is characterized in that the shell (1) further includes being cylindrical in shape Second shell (12), the second shell (12) and the first shell (11) are coaxially disposed, and are fixed on the first shell The outside wall surface of the bottom plate (111) of body (11)；

The bottom plate (111) is equipped with the axis hole (111a) for being connected to the first shell (11), the second shell (12), the drive One end that moving axis (2) is equipped with the driving portion (21) is located in the first shell (11), and the other end passes through the axis hole (111a) and stretch into the second shell (12).

8. boring bar tool according to claim 7, which is characterized in that the peripheral wall of the second shell (12) is equipped with several fixations Hole (121), each mounting hole (121) is circumferentially spaced, further includes connector, and the connector can pass through each described The external connection power component is fixed on the second shell (12) by mounting hole (121)；

The external connection power component includes power collet, and the peripheral wall of the second shell (12) is equipped with handle hole (122), passes through The elasticity of the power collet can be adjusted in the handle hole (122).

9. according to any one of the claim 1-6 boring bar tools, which is characterized in that the driving portion (21) is driving tooth Wheel, the follower (311) is the driven gear being meshed with the driving gear.

10. according to any one of the claim 1-6 boring bar tools, which is characterized in that the bottom plate of the first shell (11) (111) outside wall surface is equipped with level meter.