CN220329648U - Split type plastic plug - Google Patents
Split type plastic plug Download PDFInfo
- Publication number
- CN220329648U CN220329648U CN202322005115.7U CN202322005115U CN220329648U CN 220329648 U CN220329648 U CN 220329648U CN 202322005115 U CN202322005115 U CN 202322005115U CN 220329648 U CN220329648 U CN 220329648U
- Authority
- CN
- China
- Prior art keywords
- shaping
- rod
- connecting rod
- section
- split
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007493 shaping process Methods 0.000 claims abstract description 105
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000004323 axial length Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a split shaping mandrel, which comprises a shaping rod and a connecting rod, wherein the shaping rod and the connecting rod are connected through a connecting piece; the shaping rod is made of tungsten-cobalt hard alloy. The shaping mandrel in the application is formed by integrating a shaping rod and a connecting rod through bolts. If the inner hole size of the rolled shaft sleeve needs to be replaced or adjusted, the shaping rod is detached from the end head of the connecting rod for reinstallation, the replacement is convenient and quick, and the time is greatly saved. The service life of the shaping core rod is prolonged, and the production cost of the shaping core rod is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of rolled shaft sleeve processing, in particular to a split shaping core rod.
Background
The rolled shaft sleeve is a thin-wall shaft sleeve rolled by a bearing material or a steel belt coated with the bearing material, and after the bearing material is coiled, the geometric accuracy of the shaft sleeve is poor, and the shaft sleeve needs to be shaped by a shaping die so as to improve the dimensional accuracy. At present, shaping equipment is mainly adopted to match with a shaping die for shaping, namely, a feeding tool is adopted to press the rolled shaft sleeve into a die cavity of a shaping female die for shaping the outer circle of the rolled shaft sleeve, and meanwhile, a shaping core rod is adopted for shaping the inner circle of the rolled shaft sleeve. The inner circle of the shaping female die is shaped by the back and forth movement of an integral shaping core rod fixed on the sliding block under the condition that the shaping female die is fixed. At present, most shaping core rods are of an integrated long structure, and the length of the shaping core rods is far greater than the height of the shaping female die. The integral shaping core rod is made of Cr12MoV, and the overall manufacturing cost is high. Although the heat treatment hardness is HRC58-62, the shaping core rod and the rolled shaft sleeve are inevitably abraded in the use process, and the integral shaping core rod can only be scrapped after the size abrasion reaches the limit; in addition, when changing or adjusting the hole size of the rolled shaft sleeve, the integral shaping core rod needs to be detached from the sliding block for replacement, and the time consumption is long.
Disclosure of Invention
The utility model aims to solve the technical problems and provide a split shaping mandrel, which reduces the cost and the replacement time.
The aim of the utility model can be achieved by the following technical scheme:
the split shaping core rod comprises a shaping rod and a connecting rod, wherein the shaping rod is connected with the connecting rod through a connecting piece; the shaping rod is made of tungsten-cobalt hard alloy.
Further, the shaping rod is composed of a guide section, a shaping section and a connecting section in sequence from the end head to the direction of the connecting rod, and the outer diameter of the guide section is smaller than that of the shaping section.
Still further, the axial length of the guide section is not less than 8mm, and the axial length of the shaping section is not less than 3mm.
In a further scheme, the included angle between the extension line of the outer side wall of the guide section and the outer side wall of the shaping section is 2 degrees plus or minus 0.5 degrees.
In a further scheme, the side wall surface of the guide section is connected with the front end surface through an arc, and the central angle of the arc is not less than 30 degrees.
Further, a through shaft hole is formed in the middle of the shaping rod, a threaded hole is formed in one end of the connecting rod, and the other end of the connecting rod is fixedly connected with the sliding block; the connecting piece is a bolt, and the bolt passes through the shaft hole and then is connected with the threaded hole, so that the shaping rod and the connecting rod are connected into a whole.
The shaping rod and the connecting rod are connected through the connecting piece after being clamped relatively.
Further, at least one matched clamping column and at least one matched groove are respectively arranged on the end surfaces, which are contacted after the shaping rod is connected with the connecting rod.
More preferably, the clamping posts and the grooves are intermittently arranged.
The shaping mandrel in the application is formed by integrating a shaping rod and a connecting rod through bolts. If the inner hole size of the rolled shaft sleeve needs to be replaced or adjusted, the shaping rod is detached from the end head of the connecting rod for reinstallation, the replacement is convenient and quick, and the time is greatly saved.
YG8 material is selected to be made into the shaping rod, the hardness of the shaping rod is far greater than that of an existing shaping core rod made of Cr12MoV material (the hardness of the shaping core rod is only HRC 58-62), the abrasion in the use process is reduced to a great extent, and the service life of the shaping core rod is prolonged. The connecting rod can be made of common steel, and the volume of the shaping rod only occupies a small part of the whole shaping core rod, so that the production cost of the shaping core rod can be greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a cross-sectional view of a plastic rod according to the present utility model.
In the figure: 1-a bolt; 2-shaping bars, 21-guiding sections, 22-shaping sections, 23-connecting sections and 24-shaft holes; 3-connecting rod, 31-screw hole.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
Referring to fig. 1-2, a split shaping mandrel comprises a shaping rod 2 and a connecting rod 3, wherein the shaping rod 2 and the connecting rod 3 are connected into a whole through a connecting piece; the shaping rod 2 is made of tungsten-cobalt cemented carbide (YG 8).
In this embodiment, a through shaft hole 24 is formed in the middle of the shaping rod 2, a threaded hole 31 is formed at one end of the connecting rod 3, and the other end is fixedly connected with the slider; the connecting piece is a bolt 1, and the bolt 1 passes through the shaft hole 24 and then is connected with the threaded hole 31, so that the shaping rod 2 and the connecting rod 3 are connected into a whole.
YG8 mainly comprises tungsten carbide (WC) and binder cobalt (Co) and other metals, wherein the tungsten carbide provides high hardness and wear resistance of the hard alloy, and cobalt plays a role of the binder, so that the toughness and impact resistance of the material are improved, and the hardness HRA is between 89 and 92, and the tungsten carbide has excellent wear resistance and cutting performance.
Therefore, YG8 material is selected to be made into the shaping rod 2, the hardness of the shaping rod is far greater than that of the existing shaping core rod made of Cr12MoV material (the hardness of the shaping core rod is only HRC 58-62), the abrasion in the use process is reduced to a great extent, and the service life of the shaping core rod is prolonged. The connecting rod 3 can be made of common steel, and the volume of the shaping rod only occupies a small part of the whole shaping core rod, so that the production cost of the shaping core rod can be greatly reduced.
In addition, the swage plug in this application is integrally joined by a swage rod 2 and a connector rod 3 by a bolt 1. If the inner hole size of the rolled shaft sleeve needs to be replaced or adjusted, the shaping rod 2 is detached from the end head of the connecting rod 3 and reinstalled, the replacement is convenient and quick, and the time is greatly saved.
As shown in fig. 2, the shaping rod 2 sequentially comprises a guide section 21, a shaping section 22 and a connecting section 23 from the end to the connecting rod 3, wherein the outer diameter of the guide section 21 is smaller than that of the shaping section 22, and specifically, the included angle between the outer side wall of the guide section 21 and the extension line of the outer side wall of the shaping section 22 is 2 degrees plus or minus 0.5 degrees. So that the guide section with smaller outer diameter can better enter the inner hole of the rolled shaft sleeve to play a role in guiding; while the outer diameter of the connecting section 23 is smaller than the outer diameter of the shaping section 22 and is the same as the outer diameter of the end of the connecting rod. And the side wall surface of the guide section 21 is connected with the front end surface through an arc, and the central angle R of the arc is not less than 30 degrees, so that friction between the guide section 21 and the inner hole of the rolled shaft sleeve is avoided, resistance is reduced, and the guide section 21 can enter the inner hole of the rolled shaft sleeve more smoothly. The outer diameter of the shaping section 22 positioned in the middle is slightly larger, and the inner hole of the rolled shaft sleeve is just extruded, so that the shaping effect is achieved. The outer diameter of the specific shaping section 22 can be correspondingly set according to the aperture of the inner hole of the rolled shaft sleeve to be shaped, and can be exchanged according to the requirement.
In order to make the connection between the shaping rod 2 and the connecting rod 3 stable, no deviation or uneven force is generated in the shaping process, at least one matched clamping column and at least one matched groove (not shown in the figure) are respectively arranged on the end surfaces of the shaping rod and the connecting rod which are contacted after being connected, and the shaping rod and the connecting rod are connected through bolts after being clamped relatively, so that the connection stability between the shaping rod and the connecting rod is enhanced.
More preferably, the clamping columns and the grooves are arranged intermittently, so that the clamping columns are not easy to shake after being inserted. When the shaping rod 2 is detached and replaced, the bolt is unscrewed and taken out, and then the shaping rod 2 is rotated to separate the clamping column or the groove on the shaping rod from the groove or the clamping column on the connecting rod 3, and the rotation is used for conveniently separating the clamping column from the groove. And simultaneously, the connection is also rotary extrusion connection.
In order to increase the service life of the shaping rod 2 and reduce the resistance during shaping, the axial length of the guide section 21 is not less than 8mm and the axial length of the shaping section 22 is not less than 3mm. The roughness of the outer surface of the shaping rod 2 in this embodiment is not greater than ra0.2.
The structure of plastic plug is split type in this embodiment, comprises plastic stick and connective bar, only needs to be according to the plastic stick of a plurality of specifications of the hole design assorted of roll-up axle sleeve, then changes at any time, and the connective bar is fixed on the slider always to reduce the debugging time, and strong adaptability. In addition, because the materials of the shaping rod and the connecting rod are different, the manufacturing cost of the shaping rod and the connecting rod can be reduced, and the service life of the shaping core rod can be prolonged.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. A split shaping core rod is characterized in that: the shaping rod (2) is fixedly connected with the connecting rod (3) through a connecting piece; the shaping rod (2) is made of tungsten-cobalt hard alloy;
the shaping rod (2) sequentially comprises a guide section (21), a shaping section (22) and a connecting section (23) from the end head to the direction of the connecting rod (3), and the outer diameter of the guide section (21) is smaller than that of the shaping section (22).
2. The split plastic mandrel as claimed in claim 1, wherein: the axial length of the guide section (21) is not less than 8mm, and the axial length of the shaping section (22) is not less than 3mm.
3. The split plastic mandrel as claimed in claim 1, wherein: the included angle between the outer side wall of the guide section (21) and the extension line of the outer side wall of the shaping section (22) is 2 degrees plus or minus 0.5 degrees.
4. The split plastic mandrel as claimed in claim 1, wherein: the side wall surface and the front end surface of the guide section (21) are connected through an arc, and the central angle of the arc is not less than 30 degrees.
5. The split plastic mandrel as claimed in claim 1, wherein: the middle of the shaping rod (2) is provided with a through shaft hole (24), one end of the connecting rod (3) is provided with a threaded hole (31), and the other end of the connecting rod is fixedly connected with the sliding block; the connecting piece is a bolt (1), and the bolt (1) passes through the shaft hole (24) and then is connected with the threaded hole (31), so that the shaping rod (2) and the connecting rod (3) are connected into a whole.
6. The split plastic mandrel as claimed in claim 1, wherein: the shaping rod and the connecting rod are connected through the connecting piece after being clamped relatively.
7. The split plastic mandrel as claimed in claim 1, wherein: the end surfaces of the shaping rod and the connecting rod, which are contacted after being connected, are respectively provided with at least one matched clamping column and a groove.
8. The split plastic mandrel as claimed in claim 7, wherein: the clamping columns and the grooves are discontinuously arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322005115.7U CN220329648U (en) | 2023-07-26 | 2023-07-26 | Split type plastic plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322005115.7U CN220329648U (en) | 2023-07-26 | 2023-07-26 | Split type plastic plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220329648U true CN220329648U (en) | 2024-01-12 |
Family
ID=89444007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322005115.7U Active CN220329648U (en) | 2023-07-26 | 2023-07-26 | Split type plastic plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220329648U (en) |
-
2023
- 2023-07-26 CN CN202322005115.7U patent/CN220329648U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101595602B1 (en) | Cutting tool and a process for making such a cutting tool | |
| CN104723045B (en) | A kind of processing technique of the big aspect ratio axle of inner bore of step | |
| CN220329648U (en) | Split type plastic plug | |
| CN202447407U (en) | Mould special for cold-drawing steel pipe | |
| CN100421868C (en) | Processing technique for forming air nozzle of lighter | |
| CN102581551A (en) | Method for forming workpieces with deep-hole spiral special-shaped curved surfaces | |
| CA2138811C (en) | Die for extruding elongate articles having longitudinal orifices | |
| CN108723275B (en) | Combined die for eccentric bolt processing | |
| CN208495685U (en) | Oil pipe bolt Combined mold for processing | |
| CN208495667U (en) | A kind of tool tooling producing cutter ring product | |
| CN108723274B (en) | Combined die for processing oil pipe bolt | |
| CN112570611B (en) | Differential mechanism shell extrusion punching process | |
| CN211516576U (en) | Generator claw utmost point centre bore shaping device | |
| CN110434186B (en) | Cold machining process and cold extrusion elongation die for ultra-deep hole slender part | |
| CN213033654U (en) | Light alloy bar extrusion die | |
| CN2827573Y (en) | Micropore wire drawing die down punch | |
| CN212494797U (en) | Tungsten steel inlaying die | |
| CN216441397U (en) | Combined drawing die for groove type part | |
| CN201175771Y (en) | Adjustable machine-clipped worm screw tool | |
| CN215279637U (en) | Roller type spring coiling machine material guide plate | |
| CN217798726U (en) | Combined type thread rolling die | |
| CN212598990U (en) | Large-aperture inner hole rough boring device | |
| CN218396320U (en) | PCD thread milling cutter | |
| CN112893505B (en) | High-precision matched power supply shell extrusion die | |
| CN214866201U (en) | Aluminum profile extrusion die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |