CN215433096U - Crankshaft main journal processing and polishing device - Google Patents
Crankshaft main journal processing and polishing device Download PDFInfo
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- CN215433096U CN215433096U CN202022985447.2U CN202022985447U CN215433096U CN 215433096 U CN215433096 U CN 215433096U CN 202022985447 U CN202022985447 U CN 202022985447U CN 215433096 U CN215433096 U CN 215433096U
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- crankshaft
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Abstract
The utility model discloses a crankshaft main journal processing and polishing device which comprises a machine tool, a tool rest arranged on the machine tool, a tool apron arranged on the tool rest, a polishing block fixedly arranged on the tool apron and folding leatheroid attached to the surface of a crankshaft main journal, wherein one end of the polishing block is provided with a concave arc surface matched with the outer circle surface of the crankshaft main journal, and the folding leatheroid is tightly pressed on the outer circle surface of the crankshaft main journal through the concave arc surface. And polishing the outer circle surface of the main journal of the crankshaft by the folded sand paper pressed by the polishing block. Compared with manual polishing, the polishing block can ensure that the surface is stressed uniformly, the straightness of a workpiece is better, the machine polishing efficiency is higher, and the stability is better than that of manual polishing. In addition, the polishing block is made of nylon, so that the polishing block has certain toughness and has a certain protection effect on workpieces.
Description
Technical Field
The utility model belongs to crankshaft machining equipment, and particularly relates to a crankshaft main journal machining and polishing device.
Background
The finished crankshaft product has high requirements on the roughness, the levelness of the shaft diameter and the contact surface of the main journal, and the roughness, the levelness and the contact surface of the main journal after finish machining need to be ensured. Therefore, after the cutter finishes each main journal, the sand paper polishing needs to be carried out on the main journal, so that the roughness and the levelness meet the product requirements.
As shown in fig. 1-2, the conventional method is to rub the outer circumferential surface of a main journal 1 of a crankshaft 10 to be polished (each part B in fig. 1) with a piece of folding leatheroid paper 2 attached to the outer circumferential surface of the main journal, and then hold and press the leatheroid paper 2 with a hand 3.
However, the manual polishing is different from person to person, which not only wastes time and labor, but also cannot obtain effective stability in terms of roughness, levelness and contact surface, and has poor straightness.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a crankshaft main journal processing and polishing device which has the polishing effects of higher efficiency, good stability, uniform stress, good straightness and the like.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a bent axle main journal processing burnishing device, includes the lathe, locates the knife rest on the lathe, locates the blade holder on the knife rest, sets firmly polishing block on the blade holder, attaches the folding husky leather paper of locating bent axle main journal surface, and polishing block one end has the concave arc face with bent axle main journal excircle surface assorted to compress tightly folding husky leather paper on bent axle main journal excircle surface through concave arc face.
The polishing block is arranged in the mounting groove through the convex block and is fixedly connected through a bolt.
The polishing block is made of nylon materials.
The specifications of the folding sand paper are respectively 80#, 120#, 240#, and 320 #.
Compared with the prior art, the crankshaft main journal processing and polishing device has the following advantages:
1) the stress is uniform: compared with manual polishing, the polishing block can ensure that the surface is stressed uniformly and the straightness of the workpiece is better.
2) The polishing efficiency is higher: compared with manual polishing, the machine polishing efficiency is higher.
3) The product stability is better: the difference of manual polishing is different from person to person, but the stability of the polishing block is much better than that of the manual polishing.
4) The polishing block is made of nylon, has certain toughness and has certain protection effect on workpieces.
Drawings
The following detailed description of the present invention is made with reference to the accompanying drawings and the embodiments:
FIG. 1 is a schematic structural view of a crankshaft;
FIG. 2 is a partial schematic view of a prior art main journal polished by hand;
FIG. 3 is a schematic view of the structure of the polishing apparatus of the present invention;
FIG. 4 is a block diagram of the polishing block of the present invention;
fig. 5 is a schematic polishing view of the polishing apparatus of the present invention.
Detailed Description
The crankshaft main journal processing and polishing device comprises a machine tool (not shown in the figures), a tool rest 5 (generally a main tool rest) arranged on the machine tool, a tool apron 6 arranged on the tool rest 5, a polishing block 4 fixedly arranged on the tool apron 6 and a piece of folding leatheroid paper 2 attached to the surface of a crankshaft main journal 1, wherein one end of the polishing block 4 is provided with a convex block 41 for installation, the convex block 41 is fixed in a matched installation groove 7 arranged on the tool apron 6 and is fixedly connected through a plurality of bolts 8, the other end of the polishing block is provided with a concave arc surface 42 matched with the outer circle surface of the crankshaft main journal 1, and the piece of folding leatheroid paper 2 is tightly pressed on the outer circle surface of the crankshaft main journal 1 through the concave arc surface 42. The folding sand paper 2 can adopt a plurality of specifications such as 80#, 120#, 240#, 320# and the like.
As an example, the polishing block 4 is made of a flexible buffer material, preferably nylon, or other similar buffer materials. The polishing block 4 made of nylon material has high mechanical strength, good toughness, higher tensile strength and compressive strength, and outstanding fatigue resistance and corrosion resistance.
The method for polishing by adopting the crankshaft main journal 1 polishing device comprises the following steps:
a. firstly, mounting a polishing block 4 on a tool apron 6 of a tool rest 5 of a machine tool;
b. then adopting folding sand paper 2 to attach on the surface of the excircle of the crankshaft main journal 1 to be polished;
c. then the folded sand paper 2 is pressed tightly through the concave cambered surface 42 of the polishing block 4;
d. the crankshaft is controlled to rotate, and the outer circle surface of the crankshaft main journal 1 is polished through the folded sand paper 2 pressed by the polishing block 4.
In step d, the rotation speed of the crankshaft is controlled to be 10-30 rpm, preferably 20 rpm. And in steps b-d, the specification of the folded sand paper can be respectively 80#, 120#, 240#, 320#, and the sand paper is polished once in the order of the specification from coarse to fine.
Compared with the prior art, the processing and polishing device has the following advantages:
1) the stress is uniform: compared with manual polishing, the polishing block 4 can ensure that the surface is stressed uniformly and the straightness of the workpiece is better.
2) The polishing efficiency is higher: compared with manual polishing, the machine polishing efficiency is higher.
3) The product stability is better: the difference between manual polishing is different, but the stability of the same polishing block 4 is much better than that of manual polishing.
4) The polishing block 4 is made of nylon, has certain toughness and has a certain protection effect on workpieces.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (4)
1. The utility model provides a bent axle main journal processing burnishing device which characterized in that: the polishing device comprises a machine tool, a tool rest arranged on the machine tool, a tool apron arranged on the tool rest, a polishing block fixedly arranged on the tool apron and a piece of folding leatheroid attached to the surface of a main journal of a crankshaft, wherein one end of the polishing block is provided with a concave arc surface matched with the surface of the excircle of the main journal of the crankshaft, and the piece of folding leatheroid is tightly pressed on the surface of the excircle of the main journal of the crankshaft through the concave arc surface.
2. The crankshaft main journal processing and polishing device according to claim 1, characterized in that: the polishing block is arranged in the mounting groove through the convex block and is fixedly connected through a bolt.
3. A crankshaft main journal processing and polishing device according to claim 1 or 2, characterized in that: the polishing block is made of nylon materials.
4. The crankshaft main journal processing and polishing device according to claim 1, characterized in that: the specification of the folding sand-skin paper is 80#, 120#, 240# or 320 #.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022985447.2U CN215433096U (en) | 2020-12-10 | 2020-12-10 | Crankshaft main journal processing and polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022985447.2U CN215433096U (en) | 2020-12-10 | 2020-12-10 | Crankshaft main journal processing and polishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215433096U true CN215433096U (en) | 2022-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022985447.2U Active CN215433096U (en) | 2020-12-10 | 2020-12-10 | Crankshaft main journal processing and polishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215433096U (en) |
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2020
- 2020-12-10 CN CN202022985447.2U patent/CN215433096U/en active Active
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