CN222242765U - A deep hole precision boring tool - Google Patents
A deep hole precision boring tool Download PDFInfo
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- CN222242765U CN222242765U CN202421033628.7U CN202421033628U CN222242765U CN 222242765 U CN222242765 U CN 222242765U CN 202421033628 U CN202421033628 U CN 202421033628U CN 222242765 U CN222242765 U CN 222242765U
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- wear
- resistant sleeve
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- hole
- deep hole
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- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 49
- 239000010687 lubricating oil Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims 6
- 239000007924 injection Substances 0.000 claims 6
- 238000003754 machining Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Drilling And Boring (AREA)
Abstract
本实用新型属于机械加工技术领域，具体涉及一种深孔精镗孔工装，包括镗杆以及用于支撑镗杆的第一支撑件和第二支撑件；第一支撑件包括限位件和定位件，限位件内设有第一耐磨套，定位件用于将限位件可拆卸固定在工件的深孔孔口处；第二支撑件包括支撑座，支撑座可拆卸固定安装在工件远离深孔孔口的一侧，支撑座上设有支撑块，支撑块上设有至少一个通孔，每个通孔内均设有第二耐磨套；镗杆的一端设有能够安装在机床上的万向联轴器，机床能够带动镗杆在第一耐磨套和第二耐磨套内旋转，镗杆上设有用于加工工件深孔的刀具；以解决现有工装难以实现工件的深孔加工以及难以保证孔的加工质量的问题。
The utility model belongs to the technical field of mechanical processing, and specifically relates to a deep hole precision boring tool, comprising a boring bar and a first support member and a second support member for supporting the boring bar; the first support member comprises a limit member and a positioning member, a first wear-resistant sleeve is arranged in the limit member, and the positioning member is used to detachably fix the limit member at the deep hole opening of a workpiece; the second support member comprises a support seat, the support seat is detachably fixedly mounted on a side of the workpiece away from the deep hole opening, a support block is arranged on the support seat, at least one through hole is arranged on the support block, and a second wear-resistant sleeve is arranged in each through hole; a universal coupling which can be mounted on a machine tool is arranged at one end of the boring bar, the machine tool can drive the boring bar to rotate in the first wear-resistant sleeve and the second wear-resistant sleeve, and a tool for machining the deep hole of the workpiece is arranged on the boring bar; the problem that it is difficult for existing tooling to realize deep hole machining of the workpiece and to ensure the machining quality of the hole is solved.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a deep hole fine boring tool.
Background
The finish boring is a further processing of forging, casting or drilling holes, and can enlarge the aperture, improve the precision, reduce the surface roughness and correct the deflection of the original hole axis well. In the machining production industry, for units without large machining centers or special equipment, deep hole machining of certain large workpieces is a difficult problem, for example, the workpieces shown in fig. 1-2 comprise multiple strings of holes, the axial length of each group of holes is 1930mm, the deep hole machining of the workpieces is difficult to realize by the length of the boring rod of the existing machine tool, the boring rod is usually used for machining by adopting the boring rod provided with a finish boring head in a main shaft hole, the boring rod is influenced by the hole depth of the workpieces, the boring rod needs to be hung longer, vibration is larger in the machining process, the boring head with the finish boring tool is larger in size and easy to droop, and coaxiality and cylindricity of the holes are difficult to ensure.
Disclosure of utility model
The utility model aims to provide a deep hole finish boring tool, which solves the problems that the existing tool is difficult to realize deep hole processing of a workpiece and the processing quality of a hole is difficult to ensure.
In order to solve the technical problems, the utility model provides the following technical scheme:
A deep hole finish boring tool comprises a boring bar, a first supporting piece and a second supporting piece, wherein the first supporting piece and the second supporting piece are used for supporting the boring bar;
The first supporting piece comprises a limiting piece and a positioning piece, a first wear-resistant sleeve is arranged in the limiting piece, and the positioning piece is used for detachably fixing the limiting piece at a deep hole opening of the workpiece;
the second supporting piece comprises a supporting seat which is detachably and fixedly arranged on one side, far away from the orifice of the deep hole, of the workpiece, a supporting block is arranged on the supporting seat, at least one through hole is formed in the supporting block, and a second wear-resistant sleeve is arranged in each through hole;
One end of the boring bar is provided with a universal coupling, the universal coupling is arranged on a machine tool during processing, the other end of the boring bar sequentially penetrates through the first wear-resistant sleeve and the second wear-resistant sleeve, the machine tool can drive the boring bar to rotate in the first wear-resistant sleeve and the second wear-resistant sleeve, and a cutter for processing deep holes of a workpiece is arranged on the boring bar;
The first support piece and the second support piece are respectively provided with a first oiling channel and a second oiling channel, the first oiling channel is used for conveying lubricating oil between the first wear-resistant sleeve and the boring bar, and the second oiling channel is used for conveying lubricating oil between the second wear-resistant sleeve and the boring bar.
The locating piece comprises a locating cover plate and a locating taper sleeve, the locating cover plate is detachably fixed on the end face of the limiting block, and the locating taper sleeve is tightly attached to the inner wall of the deep hole of the workpiece and the outer wall of the limiting block.
Further, an oil filling hole is formed in the positioning cover plate, an oil passing hole is formed in the limiting block, an oil outlet is formed in the first wear-resistant sleeve, the oil filling hole, the oil passing hole and the oil outlet are mutually communicated to form a first oil filling channel, and a first sealing ring is arranged between the positioning cover plate and the first wear-resistant sleeve and used for preventing lubricating oil from penetrating into the workpiece.
Further, at least one limiting plate is detachably and fixedly arranged on the supporting block, and the limiting plate fixes the second wear-resistant sleeve in the through hole.
Further, the support block is provided with at least one oil filling port, the second wear-resistant sleeve is provided with an oil outlet, the oil filling port and the oil outlet are mutually communicated to form a second oil filling channel, and a second sealing ring is arranged between the limiting plate and the second wear-resistant sleeve and used for preventing lubricating oil from penetrating into the workpiece.
Further, one end of the supporting seat is in threaded connection with the end face of the workpiece, the other end of the supporting seat is fixed on the other end face of the workpiece through the locking device, the locking device comprises a locking taper sleeve and a locking cover plate, the locking cover plate is detachably fixed on the workpiece, and the locking cover plate enables the locking taper sleeve to be tightly attached to the inner wall of the workpiece and the outer wall of the supporting seat.
Further, the first wear-resistant sleeve and the second wear-resistant sleeve are respectively provided with annular grooves, and the two annular grooves are respectively communicated with the first oiling channel and the second oiling channel.
Further, the first wear-resistant sleeve and the second wear-resistant sleeve are made of copper alloy materials.
The technical principle of the utility model is as follows:
During machining, a workpiece is installed on a workbench of a machine tool, a first supporting piece is installed at an orifice of a deep hole to be machined, a second supporting piece is installed on the workpiece, the first wear-resistant sleeve and the second wear-resistant sleeve are located on the same axis with the deep hole to be machined, then a universal coupling on a boring rod is connected to the machine tool, the workpiece is driven to move through the workbench, the boring rod sequentially penetrates through the first wear-resistant sleeve and the second wear-resistant sleeve, a cutter is installed on the boring rod through a hole at the upper end of the workpiece, the boring rod and the cutter are driven to rotate through the machine tool, deep hole finish boring machining of the workpiece can be achieved through the machine tool driving the workpiece to move, and lubricating oil is added into a first oiling channel and a second oiling channel in the machining process.
Compared with the prior art, the utility model has the following beneficial technical effects:
According to the utility model, a deep hole of a workpiece is machined in a penetrating and boring mode, the first support piece and the second support piece are used for supporting two sides of the boring bar respectively, so that the boring bar can be prevented from being overhung too much, vibration of the boring bar in the machining process is reduced, the first wear-resistant sleeve and the second wear-resistant sleeve have good supporting rigidity, rough machining cutting amount is large, finish machining precision is controllable, and machining quality of holes is good.
The first wear-resisting sleeve of the first supporting piece is fixed by adopting a positioning taper sleeve, one end of the supporting seat of the second supporting piece is positioned by adopting a hole, the other end of the supporting seat is fixed by adopting a locking taper sleeve, the positioning accuracy is good, the connection is reliable, and the assembly is convenient and quick.
Drawings
FIG. 1 is an assembled elevation view of the present utility model with a workpiece;
FIG. 2 is a top view of the assembly of the present utility model with a workpiece;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
FIG. 4 is an enlarged schematic view at B in FIG. 1;
fig. 5 is an enlarged schematic view at C in fig. 2.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include:
Boring bar 1, universal coupling 11, cutter 12;
The device comprises a first supporting piece 2, a limiting block 21, an oil passing hole 211, a first wear-resistant sleeve 22, an oil outlet 221, a limiting cover plate 23, a first sealing ring 231, a positioning cover plate 24, an oil filling hole 241 and a positioning taper sleeve 25;
The device comprises a second supporting piece 3, a supporting seat 31, a supporting block 32, a through hole 321, an oil filling port 322, a second wear-resistant sleeve 33, an oil outlet 331, a limiting plate 34, a second sealing ring 341, a locking taper sleeve 35 and a locking cover plate 36;
Work 4, deep hole 41, mounting hole 42.
Examples
The workpiece 4 shown in fig. 1-2 comprises three series of holes, each group of holes has an axial length of 1930mm, the right side of the workpiece 4 comprises a mounting hole 42, and in order to process a deep hole 41 on the workpiece 4, the utility model discloses a deep hole finish boring tool, which comprises a boring bar 1, a first support 2 and a second support 3 for supporting the boring bar 1.
As shown in figures 1 and 3, the first supporting piece 2 comprises a limiting piece and a positioning piece, the limiting piece comprises a limiting block 21 and a limiting cover plate 23, a mounting groove is formed in the limiting block 21, a first wear-resistant sleeve 22 is arranged in the mounting groove, the first wear-resistant sleeve 22 is made of copper alloy materials, the limiting cover plate 23 is fixed at the right end of the limiting block 21 through screws, the first wear-resistant sleeve 22 is fixed in the mounting groove, the positioning piece is used for detachably fixing the limiting piece at a deep hole 41 orifice of a workpiece 4, the positioning piece comprises a positioning cover plate 24 and a positioning taper sleeve 25, the positioning cover plate 24 is fixed on the left end face of the limiting block 21 through bolts, the positioning taper sleeve 25 is pressed between the workpiece 4 and the limiting block 21 by the positioning cover plate 24, the positioning taper sleeve 25 is tightly attached to the inner wall of the deep hole 41 to be processed of the workpiece 4 and the outer wall of the limiting block 21, the first supporting piece 2 is simple and quick to assemble, and the positioning taper sleeve 25 is used for positioning and locking, positioning accuracy is high, and processing quality of the hole is improved.
As shown in fig. 3, the positioning cover plate 24 is provided with an oil filling hole 241, the limiting block 21 is provided with an oil passing hole 211, the first wear-resistant sleeve 22 is provided with an oil outlet 221 and an annular groove communicated with the oil outlet 221, the oil filling hole 241, the oil passing hole 211 and the oil outlet 221 are mutually communicated to form a first oil filling channel, and a first sealing ring 231 is arranged between the positioning cover plate 24 and the first wear-resistant sleeve 22 and used for preventing lubricating oil from penetrating into the workpiece 4.
As shown in fig. 1 and 2, the second supporting piece 3 is installed in an installation hole 42 of the workpiece 4, the second supporting piece 3 comprises a supporting seat 31, one end of the supporting seat 31 is fixed on the rear end face of the workpiece 4 through a bolt, the other end of the supporting seat 31 is fixed on the front end face of the workpiece 4 through a locking device, as shown in fig. 5, the locking device comprises a locking taper sleeve 35 and a locking cover plate 36, the locking cover plate 36 is fixed on the front end face of the workpiece 4 through a screw, the locking cover plate 36 presses the locking taper sleeve 35 into a gap between the workpiece 4 and the supporting seat 31, the locking taper sleeve 35 is tightly attached to the inner wall of the workpiece 4 and the outer wall of the supporting seat 31, and two ends of the supporting seat 31 are locked and positioned through holes and the locking taper sleeve 35 respectively, so that the positioning accuracy is good.
As shown in fig. 3, a supporting block 32 is formed on the supporting seat 31, at least one through hole 321 is formed on the supporting block 32, three through holes 321 are formed in the embodiment, the three through holes 321 respectively correspond to three deep holes 41 to be processed of the workpiece 4, a second wear-resistant sleeve 33 is arranged in each through hole 321, the second wear-resistant sleeve 33 is made of copper alloy materials, three limiting plates 34 are fixed on the supporting block 32 through screws, the three limiting plates 34 respectively fix the three second wear-resistant sleeves 33 in the through holes 321, as shown in fig. 4, three oil filling ports 322 are formed in the supporting block 32, an oil outlet 331 and a ring groove communicated with the oil outlet 331 are formed in each second wear-resistant sleeve 33, the oil filling ports 322 and the oil outlet 331 which correspond to each other are communicated to form a second oil filling channel, a second sealing ring 341 is arranged between the limiting plates 34 and the second wear-resistant sleeves 33 and used for preventing lubricating oil from penetrating into the workpiece 4, and the second supporting piece 3 is convenient and fast to assemble and reliable in connection, and can improve the processing quality of the holes of the workpiece 4.
When the deep hole 41 of the workpiece 4 is machined, the workpiece 4 is installed on a workbench of a machine tool, the first supporting piece 2 is installed at the hole opening of the deep hole 41 to be machined, the second supporting piece 3 is installed in the installation hole 42 of the workpiece 4, as shown in fig. 1 and 2, one end of the boring bar 1 is connected with a universal coupling 11, the boring bar 1 is installed on a machine tool spindle through the universal coupling 11, the workpiece 4 is moved through the workbench, the free end of the boring bar 1 sequentially passes through the first wear-resistant sleeve 22 and the second wear-resistant sleeve 33, the cutter 12 is installed on the boring bar 1 through the hole at the upper end of the workpiece 4, the prop is used for machining the deep hole 41 of the workpiece 4, after the cutter 12 is installed, the boring bar 1 and the cutter 12 are driven to rotate through the machine tool spindle, the workpiece 4 is driven to move through the workbench, and the deep hole 41 of the workpiece 4 is machined, lubricating oil is conveyed between the first wear-resistant sleeve 22 and the boring bar 1 through the first oiling channel, and the second oiling channel is conveyed between the second wear-resistant sleeve 33 and the boring bar 1 in the machining process.
The utility model adopts a boring mode to process the deep holes 41 of the workpiece 4, and the first support piece 2 and the second support piece 3 respectively support the two sides of the boring bar 1, so that the boring bar 1 can be prevented from being overhung too much, the vibration of the boring bar 1 in the processing process is reduced, the first wear-resistant sleeve 22 and the second wear-resistant sleeve 33 have better supporting rigidity, the rough machining cutting amount is large, the precision of finish machining is controllable, the machining quality of holes is good, the first support piece 2 and the second support piece 3 are convenient and quick to install and operate, and the machining of a series of coaxial deep holes 41 can be completed by one-time installation, so that the machining efficiency of the workpiece 4 is effectively improved.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421033628.7U CN222242765U (en) | 2024-05-13 | 2024-05-13 | A deep hole precision boring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421033628.7U CN222242765U (en) | 2024-05-13 | 2024-05-13 | A deep hole precision boring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222242765U true CN222242765U (en) | 2024-12-27 |
Family
ID=93987004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421033628.7U Active CN222242765U (en) | 2024-05-13 | 2024-05-13 | A deep hole precision boring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222242765U (en) |
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2024
- 2024-05-13 CN CN202421033628.7U patent/CN222242765U/en active Active
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