CN109079198B - Propeller taper hole processing device - Google Patents
Propeller taper hole processing device Download PDFInfo
- Publication number
- CN109079198B CN109079198B CN201811266347.5A CN201811266347A CN109079198B CN 109079198 B CN109079198 B CN 109079198B CN 201811266347 A CN201811266347 A CN 201811266347A CN 109079198 B CN109079198 B CN 109079198B
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- China
- Prior art keywords
- boring bar
- gear shaft
- base
- servo motor
- feeding
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 22
- 238000009434 installation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a propeller taper hole processing device, which comprises a base, a rotating mechanism, a feeding mechanism and a digital display measuring mechanism, wherein the base is provided with a plurality of screw holes; the base is fixed on the foundation, the rotating mechanism is vertically supported on the upper side of the base and comprises a first servo motor, a rotating disc, a connecting disc and a boring bar; the feeding mechanism comprises a feeding driving unit and a feeding cutting unit, the feeding driving unit comprises a second servo motor, a second gear shaft, a third gear shaft, a ball cage universal joint and an overload clutch, and the feeding cutting unit comprises a ball screw, a nut seat, a cutter holder, a cutter and a double-row linear rolling guide rail; the digital display measuring mechanism is arranged on one side of the boring bar mounting groove. The invention has the advantages of simple structure, low cost, convenient operation, time and labor saving, safety and reliability, low requirement on the skills of operators, and shortened manufacturing period of products while improving the working efficiency.
Description
Technical Field
The invention relates to a taper hole machining device, in particular to a machining device for machining a taper hole of a large marine propeller, and belongs to the technical field of machining equipment.
Background
The taper hole of the large marine propeller has particularly large aperture, and the machining precision requirement on the taper hole is particularly high, so that a machining device with particularly good performance is required. Most of the existing machining of the propeller taper holes for ships is performed through a large vertical lathe, the machining equipment is large in size and low in machining efficiency, machining precision of the taper holes is difficult to ensure, and after machining, a scraper or a small grinding wheel grinding head is usually adopted for carrying out matched grinding so that the precision of the taper holes can meet the requirement. In addition, there is a taper hole processing device, the boring bar shaft (sliding screw) of the device is connected with the guide rail slide block, the boring bar is fixed on the guide rail slide block, while processing the taper hole, the main axis of the machine tool drives the boring bar device to rotate, the guide rail slide block drives the boring bar to move up and down to finish cutting, the device can process the taper hole of the large-scale screw propeller, but because the guide rail slide block is easy to abrade on both sides of the guide rail slide block when sliding in the guide rail, the center of the guide rail slide block after wearing will deviate, the center of the boring bar installed on the guide rail slide block also deviates correspondingly, it is difficult to guarantee the taper and processing precision of the taper hole, still need to match grinding with the scraper or small grinding wheel to make the precision of the taper hole meet the requirement. The two processing devices are high in risk, labor and time are wasted, repeated operation is needed, the process is complex, the skill requirements on operators are high, the manufacturing cost of the propeller is greatly increased, and the manufacturing period is prolonged.
Disclosure of Invention
The invention aims to provide a propeller taper hole processing device which is simple in structure, convenient to operate, time-saving and labor-saving, high in processing efficiency and high in processing precision.
The invention is realized by the following technical scheme:
a propeller taper hole processing device comprises a base, a rotating mechanism, a feeding mechanism and a digital display measuring mechanism; the base is fixed on a foundation, the rotating mechanism is vertically supported on the upper side of the base, the rotating mechanism comprises a first servo motor, a rotating disc, a connecting disc and a boring bar, the first servo motor is vertically fixed on one side in the base, the rotating disc, the connecting disc and the boring bar are sequentially and vertically arranged on the upper side of the base from bottom to top, the rotating disc is supported on the upper side of the base through a bearing, an inner gear of the rotating disc is meshed with a first gear shaft on an output shaft of the first servo motor, and the bottom and the top of the connecting disc are fixedly connected with the top of the rotating disc and the bottom of the boring bar respectively; the feeding mechanism comprises a feeding driving unit and a feeding cutting unit, the feeding driving unit comprises a second servo motor, a second gear shaft, a third gear shaft, a ball cage universal joint and an overload clutch, the second servo motor is vertically fixed in the middle of the base, the lower end of the second gear shaft is fixedly connected with the output shaft of the second servo motor through a coupler, the middle of the second gear shaft is supported on the middle of the bottom of the connecting disc, the second gear shaft is meshed with the third gear shaft, the third gear shaft is supported on one side of the bottom of the connecting disc, and the upper end of the third gear shaft is fixedly connected with the lower end of the overload clutch through the ball cage universal joint; the feeding cutting unit is arranged in the mounting groove at one side of the boring bar and comprises a ball screw, a nut seat, a cutter holder, a cutting knife and double-row linear rolling guide rails, wherein the upper end and the lower end of the ball screw are respectively supported on supporting seats at the upper end and the lower end of the boring bar mounting groove; the digital display measuring mechanism is arranged on one side of the boring bar mounting groove.
The object of the present invention can be further achieved by the following technical means.
The screw taper hole processing device comprises the digital display measuring mechanism, wherein the digital display measuring mechanism comprises a magnetic grating ruler, a reading head and a display, the magnetic grating ruler is fixed on one side of a boring bar mounting groove, the reading head is fixed on one side of a tool apron, and the display is connected to the reading head.
In the propeller taper hole processing device, the upper side and the lower side of the tool apron are respectively provided with the shield, and the two ends of the shield are respectively fixedly connected with one side of the tool apron and one end of the boring bar; the shield is a spring steel rolling shutter type shield.
In the propeller taper hole processing device, the boring bar is conical, and the top of the boring bar is provided with the hanging ring.
In the propeller taper hole processing device, the included angle between the center line of the ball screw and the center line of the boring bar is 0.5-2 degrees.
The invention realizes the processing of the propeller taper hole through the rotation of the boring bar and the up-down linear motion of the tool apron, has simple structure and low cost, can be processed by only hanging the boring bar into the propeller taper hole when in use, has convenient operation, time and labor saving, safety and reliability, has low requirements on the skills of operators, improves the working efficiency and shortens the manufacturing period of products. The two sides of the tool apron are respectively supported on the sliding blocks of the double-row linear rolling guide rail, the center of the cutting tool can be prevented from deviating, so that the machining precision of a conical hole of the screw is guaranteed, the ball screw and the third gear shaft are in transition through the ball cage universal joint, the relative displacement between the ball screw and the third gear shaft during installation and operation can be compensated, the transmission precision and the speed can be well guaranteed, in addition, the overload clutch is further arranged at the lower end of the ball screw, when overload conditions occur in the machining process, the overload clutch is automatically disengaged when the transmission torque exceeds a set value, the ball screw and the tool can be effectively protected from being damaged, and after overload is eliminated, the ball screw and the tool can be manually reset through the lever. The digital display measuring mechanism on one side of the boring bar mounting groove can easily measure the length dimension of the oil groove in the propeller taper hole, the measurement is accurate and reliable, the upper side and the lower side of the tool apron are both provided with shields, and copper scraps or copper powder generated in the processing process can be prevented from splashing on the surfaces of the double-row linear rolling guide rail and the ball screw to cause damage. The invention can effectively ensure the machining precision of the propeller taper hole, can meet the required precision requirement without being matched with grinding after machining, and has high machining efficiency.
Advantages and features of the invention will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic drawing of a machining process for machining a propeller cone hole using the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1, the present invention includes a base 1, a rotating mechanism 2, a feeding mechanism 3, and a digital display measuring mechanism 4. The base 1 is fixed on the foundation 5 through rag bolts, the rotating mechanism 2 is vertically supported on the upper side of the base 1, the rotating mechanism 2 comprises a first servo motor 21, a rotating disc 22, a connecting disc 23 and a boring bar 24, the first servo motor 21 is vertically fixed on the left side in the base 1, the rotating disc 22, the connecting disc 23 and the boring bar 24 are sequentially and vertically arranged on the upper side of the base 1 from bottom to top, the rotating disc 22 is supported on the upper side of the base 1 through bearings, an inner gear of the rotating disc 22 is meshed with a first gear shaft 25 on an output shaft of the first servo motor 21, the bottom and the top of the connecting disc 23 are fixedly connected with the top of the rotating disc 22 and the bottom of the boring bar 24 through fasteners, the boring bar 24 is conical, and a hanging ring 26 is arranged on the top of the boring bar 24.
As shown in fig. 1 and 2, the feeding mechanism 3 includes a feeding driving unit 31 and a feeding cutting unit 32, the feeding driving unit 31 includes a second servo motor 311, a second gear shaft 312, a third gear shaft 313, a ball cage universal joint 314 and an overload clutch 315, the second servo motor 311 is vertically fixed in the middle of the base 1, the lower end of the second gear shaft 312 is fixedly connected with the output shaft of the second servo motor 311 through a coupling 316, the middle of the second gear shaft 312 is supported on the middle of the bottom of the connecting disc 23 through a bearing, the second gear shaft 312 is meshed with the third gear shaft 313, the third gear shaft 313 is supported on the left side of the bottom of the connecting disc 23 through a bearing, the upper end of the third gear shaft 313 is fixedly connected with the lower end of the overload clutch 315 through the ball cage universal joint 314, and the overload clutch 315 is a ball overload clutch.
The feed cutting unit 32 is arranged in a mounting groove 241 on the left side of the boring bar 24, the feed cutting unit 32 comprises a ball screw 321, a nut seat 322, a cutter seat 323, a cutting knife 324 and a double-row linear rolling guide 325, the upper end and the lower end of the ball screw 321 are respectively supported on a supporting seat 326 on the upper end and the lower end of the mounting groove 241 of the boring bar 24 through bearings, the included angle between the center line of the ball screw 321 and the center line of the boring bar 24 is 0.5-2 degrees, in the embodiment, the included angle between the center line of the ball screw 321 and the center line of the boring bar 24 is 1 degree, the lower end of the ball screw 321 is fixedly connected with the upper end of an overload clutch 315, the nut seat 322 is screwed on the ball screw 321, the cutter seat 323 is fixed on the nut seat 322 through a fastener, the cutter knife rest 324 is vertically fixed on the cutter seat 323 through a knife sleeve 327 and a round nut 328, the two sides of the cutter seat 323 are respectively fixed on a sliding block of the double-row linear rolling guide 325 through fasteners, the double-row linear rolling guide 325 is respectively fixed on the step surfaces on the two sides of the mounting groove 241 of the boring bar 24 through the fastener, and the mounting reference surface of the supporting seat 326 is parallel to the step surface of the double-row linear rolling guide 325 so as to ensure the parallelism of the guide 321 and the linear rolling guide 325. The upper side and the lower side of the tool apron 323 are respectively provided with a shield 329, two ends of the shield 329 are respectively fixedly connected with one side of the tool apron 323 and one end of the boring bar 324, and the shield 329 is a spring steel rolling curtain type shield.
As shown in fig. 2, the digital measuring mechanism 4 is disposed on the left side of the mounting groove 241 of the boring bar 24, the digital measuring mechanism 4 includes a magnetic grating ruler 41, a reading head 42 and a display 43, the magnetic grating ruler 41 is fixed on the left side of the boring bar mounting groove 241, the reading head 42 is fixed on the left side of the tool apron 323, and the display 43 is connected to the reading head 42.
The invention takes the installation surface of the double-row linear rolling guide rail 325 and the installation surface of the supporting seat 326 as installation bases, thereby ensuring that the device has uniform installation references. The machining of the propeller taper hole is achieved by the linear motion of the tool holder 323 and the rotational motion of the boring bar 24.
The straightness of the tool apron 323 moving on the double-row linear rolling guide rail 325 is ensured by selecting the double-row linear rolling guide rail 325 with P-level precision, the ball cage universal joint 314 and a uniform installation datum plane, and the straightness can reach +/-0.01 mm/m.
As shown in fig. 3, when machining the taper hole of the propeller, firstly, the base 1 provided with the first servo motor 21, the second servo motor 311 and the rotating disk 22 is placed into the foundation 5 at the lower side of the working platform 6, the base 1 is fixed through foundation bolts, meanwhile, the propeller 7 is supported on the equal-height pad 8 at the upper side of the working platform 6, then, the boring bar assembly is hung into the taper hole of the propeller 7 through the hanging ring 26, the bottom of the connecting disk 23 is connected with the top of the rotating disk 22, meanwhile, the second gear shaft 312 is connected with the coupler 316 on the second servo motor 311, the top end of the boring bar 24 is fixed at the top of the propeller 7 through the sliding bearing 9 and the supporting frame 10, and at the moment, the cutting knife 324 is contacted with the inner wall of the taper hole of the propeller 7, and then the machining can be performed.
When in processing, the first servo motor 21 is started, the first servo motor 21 drives the boring bar 24 to rotate through the first gear shaft 25, the rotating disc 22 and the connecting disc 23, the boring bar 24 drives the feeding cutting unit 32 to rotate, and the cutting knife 324 rotates along with the boring bar. Meanwhile, the second servo motor 311 is started, the second servo motor 311 drives the ball screw 321 to rotate through the second gear shaft 312, the third gear shaft 313 and the overload clutch 315, at the moment, the nut seat 322 moves linearly on the ball screw 321, the nut seat 322 drives the tool apron 323 to move and feed along the double-row linear rolling guide rail 325, and thus the cutting tool 324 rotates and feeds linearly, and machining of a propeller taper hole is completed. After the processing of the propeller taper hole is finished, the first servo motor 21 is turned off, the boring bar 24 stops rotating, the cutting knife 324 stops rotating along with the boring bar, the cutting knife 324 moves up and down under the drive of the knife holder 323 to process the oil groove on the propeller taper hole, and the length and the size of the oil groove can be mapped through the display 43 after the processing of the oil groove is finished.
In addition to the above embodiments, other embodiments of the present invention are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present invention.
Claims (1)
1. A propeller taper hole processing device comprises a base, a rotating mechanism and a feeding mechanism; the base is fixed on a foundation, the rotating mechanism is vertically supported on the upper side of the base, the rotating mechanism comprises a first servo motor, a rotating disc, a connecting disc and a boring bar, the first servo motor is vertically fixed on one side in the base, the rotating disc, the connecting disc and the boring bar are sequentially and vertically arranged on the upper side of the base from bottom to top, the rotating disc is supported on the upper side of the base through a bearing, an inner gear of the rotating disc is meshed with a first gear shaft on an output shaft of the first servo motor, and the bottom and the top of the connecting disc are fixedly connected with the top of the rotating disc and the bottom of the boring bar respectively; the feeding mechanism comprises a feeding driving unit and a feeding cutting unit, the feeding driving unit comprises a second servo motor, a second gear shaft, a third gear shaft, a ball cage universal joint and an overload clutch, the second servo motor is vertically fixed in the middle of the base, the lower end of the second gear shaft is fixedly connected with the output shaft of the second servo motor through a coupler, the middle of the second gear shaft is supported on the middle of the bottom of the connecting disc, the second gear shaft is meshed with the third gear shaft, the third gear shaft is supported on one side of the bottom of the connecting disc, and the upper end of the third gear shaft is fixedly connected with the lower end of the overload clutch through the ball cage universal joint; the feeding cutting unit is arranged in the mounting groove at one side of the boring bar and comprises a ball screw, a nut seat, a cutter seat and a cutter, wherein the upper end and the lower end of the ball screw are respectively supported on the supporting seats at the upper end and the lower end of the boring bar mounting groove, the lower end of the ball screw is fixedly connected with the upper end of the overload clutch, the nut seat is screwed on the ball screw, the cutter seat is fixed on the nut seat, and the cutter is vertically fixed on the cutter seat; the method is characterized in that: the digital display measuring mechanism is arranged on one side of the boring bar mounting groove and comprises a magnetic grating ruler, a reading head and a display, wherein the magnetic grating ruler is fixed on one side of the boring bar mounting groove, the reading head is fixed on one side of the tool apron, and the display is connected to the reading head; the feeding cutting unit further comprises double-row linear rolling guide rails, two sides of the cutter holder are respectively and fixedly supported on sliding blocks of the double-row linear rolling guide rails, and the double-row linear rolling guide rails are respectively and parallelly fixed on step surfaces at two sides of the boring bar mounting groove; the upper side and the lower side of the tool apron are respectively provided with a shield, and two ends of the shield are respectively fixedly connected with one side of the tool apron and one end of the boring bar; the shield is a spring steel rolling shutter type shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266347.5A CN109079198B (en) | 2018-10-29 | 2018-10-29 | Propeller taper hole processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266347.5A CN109079198B (en) | 2018-10-29 | 2018-10-29 | Propeller taper hole processing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109079198A CN109079198A (en) | 2018-12-25 |
| CN109079198B true CN109079198B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266347.5A Active CN109079198B (en) | 2018-10-29 | 2018-10-29 | Propeller taper hole processing device |
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| Country | Link |
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| CN (1) | CN109079198B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191889A (en) * | 2020-10-26 | 2021-01-08 | 辽宁顺达机械制造(集团)有限公司 | Boring device for conical hole of rudder blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333609A (en) * | 1998-05-29 | 1999-12-07 | Mitsubishi Heavy Ind Ltd | Taper boring device |
| CN1887488A (en) * | 2006-07-26 | 2007-01-03 | 渤海船舶重工有限责任公司 | Conic hole boring machine with adjustable taper |
| CN201235468Y (en) * | 2007-06-18 | 2009-05-13 | 大连船用推进器有限公司 | Machining apparatus for large-scale screw propeller hub hanging hole |
| CN107775021A (en) * | 2017-11-02 | 2018-03-09 | 齐齐哈尔齐机工业产品有限公司 | A kind of propeller inner hole processes boring bar device |
| CN209050148U (en) * | 2018-10-29 | 2019-07-02 | 中船动力有限公司 | Propeller cone hole machine device |
-
2018
- 2018-10-29 CN CN201811266347.5A patent/CN109079198B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333609A (en) * | 1998-05-29 | 1999-12-07 | Mitsubishi Heavy Ind Ltd | Taper boring device |
| CN1887488A (en) * | 2006-07-26 | 2007-01-03 | 渤海船舶重工有限责任公司 | Conic hole boring machine with adjustable taper |
| CN201235468Y (en) * | 2007-06-18 | 2009-05-13 | 大连船用推进器有限公司 | Machining apparatus for large-scale screw propeller hub hanging hole |
| CN107775021A (en) * | 2017-11-02 | 2018-03-09 | 齐齐哈尔齐机工业产品有限公司 | A kind of propeller inner hole processes boring bar device |
| CN209050148U (en) * | 2018-10-29 | 2019-07-02 | 中船动力有限公司 | Propeller cone hole machine device |
Non-Patent Citations (1)
| Title |
|---|
| 李淑芳.机械装配与维修技术.西安电子科技大学出版社,2017,139-142. * |
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| CN109079198A (en) | 2018-12-25 |
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