CN113280097A - Tooth-shaped turntable part for automatic production line and numerical control machining method thereof - Google Patents
Tooth-shaped turntable part for automatic production line and numerical control machining method thereof Download PDFInfo
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- CN113280097A CN113280097A CN202110606640.7A CN202110606640A CN113280097A CN 113280097 A CN113280097 A CN 113280097A CN 202110606640 A CN202110606640 A CN 202110606640A CN 113280097 A CN113280097 A CN 113280097A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003754 machining Methods 0.000 title claims description 37
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000003801 milling Methods 0.000 claims description 17
- 238000005553 drilling Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000007514 turning Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to a tooth-shaped turntable part for an automatic assembly line, which comprises a tooth-shaped turntable body, wherein the tooth-shaped turntable body sequentially comprises an outer part, an outer connecting part, an inner connecting part and a central mounting part from outside to inside; the outer ring of the outer part is provided with external teeth, the outer connecting part is composed of a plurality of hollow circular rings which are sequentially connected, the inner connecting part is composed of a plurality of connecting rods, the outer connecting part is connected between the outer part and the inner connecting part, and the inner connecting part is connected between the outer connecting part and the central mounting part. Through the outer connecting portion that sets up the cavity ring and constitute to the inner connecting portion that a plurality of connecting rods are constituteed, can reduce the weight of profile of tooth carousel, increase with outside area of contact, guarantee that the high temperature that profile of tooth carousel produced in the transmission in-process in time distributes away, avoid the heat to concentrate, be difficult for making profile of tooth carousel take place deformation to guarantee its long-term effectual high load operation.
Description
Technical Field
The invention belongs to the technical field of mechanical parts, and particularly relates to a tooth-shaped turntable part for an automatic assembly line and a numerical control machining method thereof.
Background
The gear is a common mechanical transmission part, and the tooth-shaped turntable is a common gear and is mainly applied to medical instruments such as centrifuges and the like. The toothed turntables are mechanical parts with teeth which can be meshed with each other, and the toothed turntables have the function of transmitting the transmission of one shaft to the other shaft and also can realize the actions of speed reduction, speed increase and the like.
High temperature is easily generated on the toothed turntable in the transmission process, so that the toothed turntable deforms, and mechanical failure occurs on the toothed turntable. In addition, the existing toothed turntable is relatively serious in abrasion, relatively slow in transmission reaction and relatively high in noise during transmission, the service life of the toothed turntable is shortened, the working reliability of the toothed turntable is greatly reduced, and meanwhile, the production cost is relatively high, the weight of the toothed turntable is relatively heavy, and the toothed turntable is inconvenient to transport.
In addition, in the processing and manufacturing of the toothed turntable parts, the precision requirement of the middle hole and the external toothed profile of the toothed turntable is high, the size is small, the processing is difficult, the labor cost and the production time cost are increased, the technology is concerned, and how to process the toothed turntable with high precision is a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the problems and provide a tooth-shaped turntable part for an automatic assembly line and a numerical control machining method thereof.
The purpose of the invention is realized by the following technical scheme:
a tooth-shaped turntable part for an automatic assembly line comprises a tooth-shaped turntable body, wherein the tooth-shaped turntable body sequentially comprises an outer part, an outer connecting part, an inner connecting part and a center mounting part from outside to inside;
the outer ring of the outer part is provided with external teeth, the outer connecting part is composed of a plurality of hollow circular rings which are sequentially connected, the inner connecting part is composed of a plurality of connecting rods, the outer connecting part is connected between the outer part and the inner connecting part, and the inner connecting part is connected between the outer connecting part and the central mounting part.
This profile of tooth carousel part through the outer junction portion that sets up the cavity ring and constitute to the inner junction portion that a plurality of connecting rods are constituteed, can reduce the weight of profile of tooth carousel by a wide margin, simultaneously because the cavity is more, increases with outside area of contact, can guarantee that the high temperature that profile of tooth carousel produced in the transmission process in time distributes away, avoids the heat to concentrate, is difficult for making profile of tooth carousel take place deformation to can guarantee its long-term effectual high load operation.
Furthermore, the outer connecting part is composed of a plurality of sequentially tangent hollow circular rings with the same size.
Further, the diameter of the hollow circular ring is 1/4-1/3 of the diameter of the tooth-shaped turntable.
Furthermore, the number of the hollow circular rings is 6-9.
Furthermore, the connecting rods of the inner connecting part are arranged in one-to-one correspondence with the hollow circular rings, and the connecting rods of the inner connecting part are arranged along the radial direction of the tooth-shaped turntable and are in a spoke shape.
Further, the central mounting part is a circular tube.
Further, a notch is formed between every two adjacent hollow circular rings at the joint of the outer part and the outer connecting part. The arrangement of the grooves is beneficial to reducing noise when the toothed turntable works and further reducing the weight of the toothed turntable.
Furthermore, the inner ring of the outer part in the groove is provided with a lug, and the lug is arranged to enhance the strength of the toothed turntable, so that the requirement of high-strength use is met while the reduction is realized.
The lug is provided with a through hole. The through holes are arranged, so that the weight of the tooth-shaped turntable is reduced, and heat dissipation is facilitated.
A numerical control machining method for tooth-shaped turntable parts of an automatic assembly line comprises the following steps:
(1) designing a tooth-shaped turntable part;
(2) drawing the outline, the shape and the size of the tooth-shaped turntable by utilizing UG software to obtain a three-dimensional part drawing of the tooth-shaped turntable part;
(3) deriving a two-dimensional engineering drawing;
(4) formulating technological rules and processing techniques of the tooth-shaped turntable parts;
(5) and determining a proper feed path track to finish numerical control simulation machining.
Numerical control machining is carried out on a five-axis numerical control lathe, one end face of a tooth-shaped turntable is an A end, and the other end face of the tooth-shaped turntable is a B end, and the method specifically comprises the following steps:
reserving a middle protruding cylinder, milling the outline of the side edge, milling eight phi 12mm large round holes in the part with the allowance of 0.5mm, removing the plane allowance, and performing semi-finishing on the eight phi 12mm large round holes;
changing a tool, and continuously and finely machining eight phi 12mm large holes by using a phi 12mm boring tool;
changing a tool, and processing eight phi 10mm round holes by using a phi 10mm boring tool;
changing a tool, and processing eight peripheral 0.2mm chamfers of a circle with phi 12mm by using a flat bottom tool with phi 5 mmR0.5;
changing a tool, and performing rough machining and finish machining on the middle petal-shaped hole by using a flat-bottomed cutter with the diameter of phi 2 mm;
changing a tool, and sequentially processing outer ring special-shaped grooves by using flat-bottomed tools with the diameter of 0.5 mm;
changing a tool, and drilling out eight holes with the diameter of 1.25mm from the outside by using a drilling tool with the diameter of 1.25 mm;
changing a tool, and punching out the central circular hole by using a punching tool with the diameter of phi 2 mm;
changing a tool, and chamfering by 0.1mm by using a flat bottom tool with the phi of 2mm and the sharp angle of 45 degrees R0.5;
changing a tool, and roughly processing the outer ring tooth profile by using a phi 1mm flat bed cutter;
changing a tool, and performing finish machining on the outer ring tooth profile by using a flat-bottomed cutter with the diameter of 0.5 mm;
and 2, turning and clamping the end A, milling the surface of the end A, clamping the milled side tooth profile of the end A by using a clamp, milling a plane by using a flat-bottom cutter with the diameter phi of 5mm, keeping the allowance of the part, wherein the allowance is 0.5mm, and performing finish machining to remove the allowance.
The five-axis machine tool is selected, so that the manual clamping and tool changing steps are reduced, the machining time is reduced, and the requirements of form and position tolerance and dimensional tolerance precision are met.
Compared with the prior art, the invention has the following technical effects:
1. the outer connecting part consisting of the hollow circular ring and the inner connecting part consisting of the connecting rods are arranged on the toothed turntable part, so that the weight of the toothed turntable can be greatly reduced, the number of cavities is large, the contact area with the outside is increased, high temperature generated in the transmission process of the toothed turntable can be guaranteed to be timely distributed, heat concentration is avoided, the toothed turntable is not prone to deformation, and long-term effective high-load operation of the toothed turntable can be guaranteed.
2. The connecting part of the outer part and the outer connecting part is provided with a groove between every two adjacent hollow circular rings, which is beneficial to reducing noise when the toothed turntable works and further reducing the weight of the toothed turntable.
3. The inner ring of the outer part in the groove is provided with the convex blocks, the convex blocks are beneficial to enhancing the strength of the toothed turntable and meeting the requirement of high-strength use while reducing, and the convex blocks are provided with the through holes, so that the weight of the toothed turntable is reduced and the heat dissipation is facilitated.
4. By adopting a specific numerical control machining process, the problems that the machined surface of the toothed turntable part is improperly selected, the steps are disordered, the machining procedure is complex, and the precision is influenced by the need of disassembling and assembling the cutter for many times in the machining production are solved, and the dimensional precision of the toothed turntable part is improved.
Drawings
FIG. 1 is a three-dimensional view of a toothed turntable part of the present invention;
FIG. 2 is a tool path diagram at the end A of a tooth-shaped turntable part;
FIG. 3 is a B-end tool path diagram of a toothed turntable part;
in the figure: 1-an outer member; 2-an external connection; 3-an inner connection; 4-a central mounting portion; 5-slotting; 6-through holes; 7-bump.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Referring to fig. 1, a toothed turntable part for an automated production line comprises a toothed turntable body, wherein the toothed turntable body sequentially comprises an outer part 1, an outer connecting part 2, an inner connecting part 3 and a central mounting part 4 from outside to inside;
the outer ring of the outer part 1 is provided with external teeth, the outer connecting part 2 is composed of a plurality of hollow circular rings which are connected in sequence, the inner connecting part 3 is composed of a plurality of connecting rods, the outer connecting part 2 is connected between the outer part 1 and the inner connecting part 3, and the inner connecting part 3 is connected between the outer connecting part 2 and the central mounting part 4.
Outer connecting portion 2 comprises a plurality of tangent and the same cavity ring of size in proper order, and the diameter of cavity ring is 1/4 ~ 1/3 of profile of tooth carousel diameter, and the number of cavity ring is 6 ~ 9, and this embodiment sets up 8, and the connecting rod of in-connection portion 3 sets up with each cavity ring one-to-one, and the radial setting of profile of tooth carousel is followed to a plurality of connecting rods of in-connection portion 3, is spoke form, and central installation department 4 is a pipe.
The connecting part of the outer part 1 and the outer connecting part 2 is provided with a slot 5 between every two adjacent hollow circular rings, and the slot 5 is arranged, so that the noise is reduced when the toothed turntable works, and the weight of the toothed turntable is further reduced.
The inner ring of the outer part 1 in the slot 5 is provided with the convex blocks 7, the arrangement of the convex blocks 7 is beneficial to enhancing the strength of the toothed turntable and meeting the requirement of high-strength use while reducing, and the through holes 6 are arranged on the convex blocks 7 and are beneficial to reducing the weight of the toothed turntable and dissipating heat.
This profile of tooth carousel part through the outer junction portion 2 that sets up the cavity ring and constitute to the inner junction portion 3 that a plurality of connecting rods are constituteed, can reduce the weight of profile of tooth carousel by a wide margin, simultaneously because the cavity is more, increases with outside area of contact, can guarantee that the high temperature that profile of tooth carousel produced in the transmission process in time distributes away, avoids the heat to concentrate, is difficult for making profile of tooth carousel emergence deformation to can guarantee its long-term effectual high load operation.
A numerical control machining method for tooth-shaped turntable parts for an automatic assembly line comprises the following steps:
designing cutter parameters (tooth number, diameter, spiral angle, front angle, rear angle, RC), processing parameters (cutting depth, feeding, rotating speed) and part information (material);
establishing a three-dimensional model of a part;
designing a milling feed path;
changing a tool and designing a milling groove feed path;
turning and clamping, and selecting proper tool path data;
designing turning tool path data;
and (5) changing the tool and machining the groove.
Processing a threaded hole;
simulation machining, aiming at improving the precision of the tooth-shaped turntable part and optimizing the tool position track
Carrying out numerical control machining on a numerical control lathe, taking one end face of a tooth-shaped turntable as an A end and the other end face as a B end, and as shown in figures 2 and 3, the method specifically comprises the following steps:
reserving a middle protruding cylinder, milling the outline of the side edge, milling eight phi 12mm large round holes in the part with the allowance of 0.5mm, removing the plane allowance, and performing semi-finishing on the eight phi 12mm large round holes;
changing a tool, and continuously and finely machining eight phi 12mm large holes by using a phi 12mm boring tool;
changing a tool, and processing eight phi 10mm round holes by using a phi 10mm boring tool;
changing a tool, and processing eight peripheral 0.2mm chamfers of a circle with phi 12mm by using a flat bottom tool with phi 5 mmR0.5;
changing a tool, and performing rough machining and finish machining on the middle petal-shaped hole by using a flat-bottomed cutter with the diameter of phi 2 mm;
changing a tool, and sequentially processing outer ring special-shaped grooves by using flat-bottomed tools with the diameter of 0.5 mm;
changing a tool, and drilling out eight holes with the diameter of 1.25mm from the outside by using a drilling tool with the diameter of 1.25 mm;
changing a tool, and punching out the central circular hole by using a punching tool with the diameter of phi 2 mm;
changing a tool, and chamfering by 0.1mm by using a flat bottom tool with the phi of 2mm and the sharp angle of 45 degrees R0.5;
changing a tool, and roughly processing the outer ring tooth profile by using a phi 1mm flat bed cutter;
changing a tool, and performing finish machining on the outer ring tooth profile by using a flat-bottomed cutter with the diameter of 0.5 mm;
and 2, turning and clamping the end A, milling the surface of the end A, clamping the milled side tooth profile of the end A by using a clamp, milling a plane by using a flat-bottom cutter with the diameter phi of 5mm, keeping the allowance of the part, wherein the allowance is 0.5mm, and performing finish machining to remove the allowance.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A tooth-shaped turntable part for an automatic assembly line comprises a tooth-shaped turntable body and is characterized in that the tooth-shaped turntable body sequentially comprises an outer part, an outer connecting part, an inner connecting part and a center mounting part from outside to inside;
the outer ring of the outer part is provided with external teeth, the outer connecting part is composed of a plurality of hollow circular rings which are sequentially connected, the inner connecting part is composed of a plurality of connecting rods, the outer connecting part is connected between the outer part and the inner connecting part, and the inner connecting part is connected between the outer connecting part and the central mounting part.
2. A toothed carousel for an automated assembly line according to claim 1, characterized in that said external connection consists of a plurality of hollow rings of the same size, tangent to one another.
3. The toothed turntable part for an automated production line of claim 2, wherein the diameter of the hollow circular ring is 1/4-1/3 of the diameter of the toothed turntable.
4. The toothed turntable part for the automated production line according to claim 2, wherein the number of the hollow circular rings is 6-9.
5. The toothed turntable component for an automated production line according to claim 2, wherein the connecting rods of the inner connecting portion are arranged in one-to-one correspondence with each hollow circular ring, and the connecting rods of the inner connecting portion are arranged in a radial direction of the toothed turntable and are in a spoke shape.
6. A toothed turret part for an automated line according to claim 1 wherein the central mounting portion is a circular tube.
7. A toothed wheel part for an automated line according to claim 1, characterized in that the junction of said outer part with said outer connection is provided with a slot between two adjacent hollow rings.
8. A toothed wheel part for an automated line according to claim 7, wherein said groove is provided with a projection on the inner circumference of said outer member, said projection being provided with a through hole.
9. The numerical control machining method of the toothed turntable part for the automatic assembly line as set forth in claim 1, characterized by comprising the steps of:
(1) designing a tooth-shaped turntable part;
(2) drawing the outline, the shape and the size of the tooth-shaped turntable by utilizing UG software to obtain a three-dimensional part drawing of the tooth-shaped turntable part;
(3) deriving a two-dimensional engineering drawing;
(4) formulating technological rules and processing techniques of the tooth-shaped turntable parts;
(5) and determining a proper feed path track to finish numerical control simulation machining.
10. The numerical control machining method for the toothed turntable part of the automatic assembly line according to claim 9,
carrying out numerical control machining on a numerical control lathe, taking one end face of a tooth-shaped turntable as an A end and the other end face as a B end, and the specific method comprises the following steps:
step 1, clamping a B end, clamping the B end by using a four-jaw chuck, processing the A end, firstly milling out a plane of the A end by using a phi 5mm flat bed knife, and then carrying out finish machining, wherein the balance is 0.5 mm;
reserving a middle protruding cylinder, milling the outline of the side edge, milling eight phi 12mm large round holes in the part with the allowance of 0.5mm, removing the plane allowance, and performing semi-finishing on the eight phi 12mm large round holes;
changing a tool, and continuously and finely machining eight phi 12mm large holes by using a phi 12mm boring tool;
changing a tool, and processing eight phi 10mm round holes by using a phi 10mm boring tool;
changing a tool, and processing eight peripheral 0.2mm chamfers of a circle with phi 12mm by using a flat bottom tool with phi 5 mmR0.5;
changing a tool, and performing rough machining and finish machining on the middle petal-shaped hole by using a flat-bottomed cutter with the diameter of phi 2 mm;
changing a tool, and sequentially processing outer ring special-shaped grooves by using flat-bottomed tools with the diameter of 0.5 mm;
changing a tool, and drilling out eight holes with the diameter of 1.25mm from the outside by using a drilling tool with the diameter of 1.25 mm;
changing a tool, and punching out the central circular hole by using a punching tool with the diameter of phi 2 mm;
changing a tool, and chamfering by 0.1mm by using a flat bottom tool with the phi of 2mm and the sharp angle of 45 degrees R0.5;
changing a tool, and roughly processing the outer ring tooth profile by using a phi 1mm flat bed cutter;
changing a tool, and performing finish machining on the outer ring tooth profile by using a flat-bottomed cutter with the diameter of 0.5 mm;
and 2, turning and clamping the end A, milling the surface of the end A, clamping the milled side tooth profile of the end A by using a clamp, milling a plane by using a flat-bottom cutter with the diameter phi of 5mm, keeping the allowance of the part, wherein the allowance is 0.5mm, and performing finish machining to remove the allowance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110606640.7A CN113280097A (en) | 2021-05-27 | 2021-05-27 | Tooth-shaped turntable part for automatic production line and numerical control machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110606640.7A CN113280097A (en) | 2021-05-27 | 2021-05-27 | Tooth-shaped turntable part for automatic production line and numerical control machining method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6319470A (en) * | 1986-07-10 | 1988-01-27 | Akai Electric Co Ltd | Power transmission mechanism |
| JPH09177945A (en) * | 1995-12-28 | 1997-07-11 | Polyplastics Co | Low noise resin gear and drive noise reducing method of resin gear |
| US20100011892A1 (en) * | 2005-04-29 | 2010-01-21 | Valeo Systemes D'essuyage | Toothed wheel |
| CN105508561A (en) * | 2016-01-29 | 2016-04-20 | 江苏保捷锻压有限公司 | Internally-hollow automobile gear |
| CN111502998A (en) * | 2020-04-30 | 2020-08-07 | 上海建桥学院 | Axisymmetric porous disc type rotor adapter and numerical control machining method thereof |
-
2021
- 2021-05-27 CN CN202110606640.7A patent/CN113280097A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6319470A (en) * | 1986-07-10 | 1988-01-27 | Akai Electric Co Ltd | Power transmission mechanism |
| JPH09177945A (en) * | 1995-12-28 | 1997-07-11 | Polyplastics Co | Low noise resin gear and drive noise reducing method of resin gear |
| US20100011892A1 (en) * | 2005-04-29 | 2010-01-21 | Valeo Systemes D'essuyage | Toothed wheel |
| CN105508561A (en) * | 2016-01-29 | 2016-04-20 | 江苏保捷锻压有限公司 | Internally-hollow automobile gear |
| CN111502998A (en) * | 2020-04-30 | 2020-08-07 | 上海建桥学院 | Axisymmetric porous disc type rotor adapter and numerical control machining method thereof |
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Application publication date: 20210820 |
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