CN110791643A - Bearing ring heat treatment top shape frock - Google Patents
Bearing ring heat treatment top shape frock Download PDFInfo
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- CN110791643A CN110791643A CN201911376232.6A CN201911376232A CN110791643A CN 110791643 A CN110791643 A CN 110791643A CN 201911376232 A CN201911376232 A CN 201911376232A CN 110791643 A CN110791643 A CN 110791643A
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- bearing ring
- heat treatment
- end part
- ejector
- connecting sleeve
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to a bearing ring heat treatment top-shaped tool, which comprises: the end part top head, the top rod and the middle connecting sleeve are connected; the number of the end part top heads and the number of the ejector rods are 2, and the 2 end part top heads are respectively connected to the 2 ejector rods; the outer surfaces of the 2 ejector rods are provided with thread structures, the inner wall of the middle connecting sleeve is provided with internal threads matched with the threads on the outer surfaces of the ejector rods, one ends of the 2 ejector rods, which are far away from the end part top heads, are butted and connected together through a middle connecting sleeve, and the joints of the end part top heads and the ejector rods are of detachable structures; the middle sleeve is sleeved on the ejector rod in a spiral mode, when the ejector rod and the middle connecting sleeve are matched with a certain part of threads to be invalid, the ejector rod can be replaced, and the whole tool does not need to be scrapped; the design method is provided. The material consumption is less, the loading and unloading are convenient, the occupied space for storing the material is small, the production efficiency is high, and the production cost is saved; the bearing ring top shape can be suitable for bearing rings with standard or specified sizes and can also be used for top shapes of bearing rings with different sizes.
Description
Technical Field
The invention relates to the technical field of bearing ring shaping, in particular to a top-shaped tool for heat treatment of a bearing ring, which is widely applied to the heat treatment process of the bearing ring.
Background
In the ferrule heat treatment production process, the ferrule is heated at high temperature, and in order to ensure the product quality, the ferrule which is easy to deform also needs to be subjected to heat shaping. In the conventional common thermal shaping method, shaping is carried out when the temperature of the ring is higher after the ring is discharged from a furnace, and whether the bearing ring is deformed or not is measured one by one after the highest point of deformation is measured and knocking is carried out.
However, the bearing ring quenched by the traditional method still cannot avoid the deformation, the deformed bearing ring needs to be reworked again, and the reworked ring product is easy to shrink and crack, so that the rejection rate is increased.
Therefore, the tool which is convenient for shaping in the heat treatment process of the bearing ring can be manufactured, and the key technical problem in the industry is solved.
Disclosure of Invention
In view of the technical problems in the prior art, the invention aims to provide a bearing ring heat treatment top-shaped tool which is simple in structure, convenient to use, applicable to bearing rings with standard or specified sizes, and capable of being used for top shapes of bearing rings with different sizes, improving the use frequency of the top-shaped tool, facilitating assembly and disassembly and achieving high production efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: bearing ring thermal treatment top shape frock includes: the end part top head, the top rod and the middle connecting sleeve are connected; the number of the end part top heads and the number of the ejector rods are 2, and the 2 end part top heads are respectively connected to the 2 ejector rods; the outer surfaces of the 2 ejector rods are provided with thread structures, the inner wall of the middle connecting sleeve is provided with internal threads matched with the threads on the outer surfaces of the ejector rods, one ends of the 2 ejector rods, which are far away from the end part top heads, are butted and connected together through a middle connecting sleeve, and the joints of the end part top heads and the ejector rods are of detachable structures;
specifically, the diameter of the ejector rod is 36mm, and the inner diameter of the middle connecting sleeve is 38 mm; the middle connecting sleeve is sleeved on the outer wall of the ejector rod;
furthermore, an internal thread structure is arranged at one end of the end part top head connected with the ejector rod, and the internal thread is matched with the external thread on the outer surface of the ejector rod, so that the end part top head is convenient to replace from the ejector rod when damaged, and the end part top head and the ejector rod are not required to be replaced from the whole tool;
further, the end plug comprises a bayonet form and a tightening form;
the bottom of the end top in the bayonet form is provided with a groove, and the width of the groove is determined according to the diameter sizes of different ferrules; this form enables a standardized top shape of the bearing ring;
however, as the size range of the bearing is enlarged, in order to avoid the problem that different sets are frequently replaced due to the adoption of a standardized top shape of the bearing ring, the invention adopts the following technical scheme;
the center of one side of the end top, which is far away from the direction of the ejector rod, is provided with a groove, and the designed structure has the function that when the outer ring of the double-row ball bearing needs to be subjected to heat treatment and subjected to top shape, the groove of the end top is matched with the bulges formed on the inner wall of the outer ring by the two rolling bodies of the bearing, so that the top shape of the outer ring of the bearing is realized;
the width of the groove is 10 mm;
furthermore, a steel ball is arranged in a groove of the jacking type end jacking head, the steel ball is arranged to have the function that when the inner ring needs to be subjected to heat treatment jacking, a point contact jacking shape is formed between the steel ball in the groove of the end jacking head and the inner wall of the bearing inner ring, the point contact jacking shape can reduce the contact area between the jacking head and the ring, the jacking force is more concentrated, and the jacking effect is better;
the diameter of the steel ball is larger than the width of the groove of the end top, and the steel ball is clamped at the position of the groove opening in the using process to be in contact with the inner wall of the inner ring, so that the top shape of the inner ring is realized;
further, the length of the intermediate connecting sleeve is determined according to the diameter of the ferrule;
the technical scheme of the invention has the following beneficial effects:
in the structure, the middle sleeve is sleeved on the ejector rod in a spiral mode, and when the ejector rod and the middle connecting sleeve are matched with a certain part of threads to be invalid, the ejector rod can be replaced without scrapping the whole tool; the design method is provided. The material consumption is less, the loading and unloading are convenient, the occupied space for storing the material is small, the production efficiency is high, and the production cost is saved; the bearing ring top shape can be suitable for bearing rings with standard or specified sizes and can also be used for top shapes of bearing rings with different sizes.
Drawings
FIG. 1 is a connection structure diagram of an end plug and a top rod of the top tool of the invention (for an outer ring).
Fig. 2 is a structural diagram of a middle connecting sleeve of the top-shaped tool.
FIG. 3 is a connection structure diagram of the end plug and the ejector pin of the top tool of the present invention (for inner ring).
Fig. 4 is a front end-top view of fig. 3.
FIG. 5 is a drawing showing the bayonet type connection between the end of the tool and the rod.
Fig. 6 is a view a-a of fig. 5.
Fig. 7 is a view showing the construction of an intermediate connection bushing connected to the jack rod of fig. 5.
Fig. 8 is a view a-a of fig. 7.
Fig. 9 is an overall assembly view of a bayonet style end plug of the present invention.
In the figure, 1, an end top head, 2, a push rod, 3, a middle connecting sleeve, 4, a bayonet type end top head groove, 5, a jacking type end top head groove, 6 and a steel ball.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example 1
As shown in the figure, the bearing ring heat treatment top-shaped tool comprises: the device comprises an end top head 1, a top rod 2 and a middle connecting sleeve 3; the number of the end part top heads 1 and the number of the ejector rods 2 are 2, and 2 end part top heads 1 are respectively connected to 2 ejector rods 2; the outer surface of 2 of the ejector rods 2 is provided with a thread structure, the inner wall of the middle connecting sleeve 3 is provided with an internal thread matched with the thread of the outer surface of the ejector rod 2, one ends of the 2 ejector rods 2, which are far away from the end part top 1, are butted and connected together through the middle connecting sleeve 3, and the joint of the end part top 1 and the ejector rod 2 is of a detachable structure;
specifically, the diameter of the ejector rod 2 is 27mm, and the inner diameter of the middle connecting sleeve 3 is matched with the outer diameter of the ejector rod; the middle connecting sleeve 3 is sleeved on the outer wall of the ejector rod 2;
an internal thread structure is arranged at one end of the end part top head 1 connected with the ejector rod 2, the internal thread is matched with the external thread on the outer surface of the ejector rod 2, so that the end part top head 1 is convenient to replace from the ejector rod 2 when damaged, and the end part top head 1 and the ejector rod 2 are not required to be replaced from the whole tool;
further, the end plug 1 is in a bayonet form;
the bottom of the end top in the bayonet form is provided with a groove 4, and the width of the groove 4 is determined according to the diameter sizes of different ferrules; this form allows for a standardized top shape of the bearing ring.
Example 2
With the increase of the size range of the bearing, in order to avoid the problem that different sets are frequently replaced due to the adoption of a standardized top shape of the bearing ring, the invention adopts the following technical scheme;
bearing ring thermal treatment top shape frock includes: the device comprises an end top head 1, a top rod 2 and a middle connecting sleeve 3; the number of the end part top heads 1 and the number of the ejector rods 2 are 2, and 2 end part top heads 1 are respectively connected to 2 ejector rods 2; the outer surface of 2 of the ejector rods 2 is provided with a thread structure, the inner wall of the middle connecting sleeve 3 is provided with an internal thread matched with the thread of the outer surface of the ejector rod 2, one ends of the 2 ejector rods 2, which are far away from the end part top 1, are butted and connected together through the middle connecting sleeve 3, and the joint of the end part top 1 and the ejector rod 2 is of a detachable structure;
the diameter of the ejector rod 2 is 36mm, and the inner diameter of the middle connecting sleeve 3 is 38 mm; the middle connecting sleeve 3 is sleeved on the outer wall of the ejector rod 2;
the end part top head 1 is in a tightly-jacking mode;
the center of one side of the end top 1 far away from the direction of the ejector rod 2 is provided with a groove 5, and the design structure has the function that when the outer ring of the double-row ball bearing needs to be subjected to heat treatment and subjected to top shape, the groove 5 of the end top is matched with the bulges formed on the inner wall of the outer ring by the two rolling bodies of the bearing, so that the top shape of the outer ring of the bearing is realized;
the width of the groove 5 is 10 mm.
Example 3
Bearing ring thermal treatment top shape frock includes: the device comprises an end top head 1, a top rod 2 and a middle connecting sleeve 3; the number of the end part top heads 1 and the number of the ejector rods 2 are 2, and 2 end part top heads 1 are respectively connected to 2 ejector rods 2; the outer surface of 2 of the ejector rods 2 is provided with a thread structure, the inner wall of the middle connecting sleeve 3 is provided with an internal thread matched with the thread of the outer surface of the ejector rod 2, one ends of the 2 ejector rods 2, which are far away from the end part top 1, are butted and connected together through the middle connecting sleeve 3, and the joint of the end part top 1 and the ejector rod 2 is of a detachable structure;
the diameter of the ejector rod 2 is 36mm, and the inner diameter of the middle connecting sleeve 3 is 38 mm; the middle connecting sleeve 3 is sleeved on the outer wall of the ejector rod 2;
the end part top head 1 is in a tightly-jacking mode;
furthermore, a steel ball 6 is arranged in a groove 5 of the jacking type end jacking head, the steel ball 6 is arranged to have the function that when the inner ring needs to be subjected to heat treatment and jacking, a point contact jacking shape is formed between the steel ball 6 in the groove 5 of the end jacking head and the inner wall of the bearing inner ring, the point contact jacking shape can reduce the contact area between the jacking head and the ring, so that jacking force is more concentrated, and the jacking effect is better;
by adopting the structure of the embodiment, the structure is simple in design, ingenious in use, cost-saving and very good in top-shaped effect; the technical problems of high manufacturing cost and troublesome assembly and disassembly of the top-shaped tool are thoroughly solved.
Claims (8)
1. Bearing ring thermal treatment top shape frock, its characterized in that: comprises an end top head, a top rod and a middle connecting sleeve; the number of the end part top heads and the number of the ejector rods are 2, and the 2 end part top heads are respectively connected to the 2 ejector rods; 2 the surface of ejector pin is equipped with helicitic texture, middle adapter sleeve inside wall be equipped with ejector pin surface screw thread matched with internal thread, 2 the ejector pin keep away from the butt joint of the one end that is equipped with the tip top separately and link together through middle adapter sleeve, tip top and ejector pin junction are detachable structure.
2. The bearing ring heat treatment top-shaped tool according to claim 1, characterized in that: and an internal thread structure is arranged at one end of the end part top head connected with the ejector rod, and the internal thread is matched with the external thread on the outer surface of the ejector rod.
3. The bearing ring heat treatment top-shaped tool according to claim 1, characterized in that: the end top comprises a bayonet form and a tightening form.
4. The bearing ring heat treatment top-shaped tool according to claim 3, characterized in that: the bottom of the end top in the bayonet form is provided with a groove, and the width of the groove is determined according to the diameter sizes of different ferrules.
5. The bearing ring heat treatment top-shaped tool according to claim 3, characterized in that: the center of one side of the end top far away from the direction of the mandril is provided with a groove.
6. The bearing ring heat treatment top-shaped tool according to claim 5, characterized in that: the width of the groove is 10 mm.
7. The bearing ring heat treatment top-shaped tool according to claim 5, characterized in that: and a steel ball is also arranged in the groove of the jacking type end jacking head, and a point contact jacking shape is formed between the steel ball in the groove of the end jacking head and the inner wall of the bearing inner ring.
8. The bearing ring heat treatment top-shaped tool according to claim 1, characterized in that: the length of the intermediate connecting sleeve is determined according to the diameter of the ferrule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376232.6A CN110791643A (en) | 2019-12-27 | 2019-12-27 | Bearing ring heat treatment top shape frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376232.6A CN110791643A (en) | 2019-12-27 | 2019-12-27 | Bearing ring heat treatment top shape frock |
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| Publication Number | Publication Date |
|---|---|
| CN110791643A true CN110791643A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911376232.6A Pending CN110791643A (en) | 2019-12-27 | 2019-12-27 | Bearing ring heat treatment top shape frock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663095A (en) * | 2020-06-28 | 2020-09-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Combined carburizing tooling charging basket |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004230450A (en) * | 2003-01-31 | 2004-08-19 | Kobe Steel Ltd | Inside grooved tube and apparatus and method for manufacturing the same |
| CN1994664A (en) * | 2006-11-16 | 2007-07-11 | 洛阳Lyc轴承有限公司 | Heat processed bearing ring shaping method and shaping prop |
| CN208696015U (en) * | 2018-09-05 | 2019-04-05 | 张家港市纳德轴承有限公司 | A kind of chuck push type bearing ring supporting device |
| CN209829917U (en) * | 2019-02-19 | 2019-12-24 | 洛阳Lyc轴承有限公司 | Conical bearing outer ring shaping ejector |
| CN210099390U (en) * | 2019-02-19 | 2020-02-21 | 洛阳Lyc轴承有限公司 | Multipurpose shaping top for bearing outer ring |
-
2019
- 2019-12-27 CN CN201911376232.6A patent/CN110791643A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004230450A (en) * | 2003-01-31 | 2004-08-19 | Kobe Steel Ltd | Inside grooved tube and apparatus and method for manufacturing the same |
| CN1994664A (en) * | 2006-11-16 | 2007-07-11 | 洛阳Lyc轴承有限公司 | Heat processed bearing ring shaping method and shaping prop |
| CN208696015U (en) * | 2018-09-05 | 2019-04-05 | 张家港市纳德轴承有限公司 | A kind of chuck push type bearing ring supporting device |
| CN209829917U (en) * | 2019-02-19 | 2019-12-24 | 洛阳Lyc轴承有限公司 | Conical bearing outer ring shaping ejector |
| CN210099390U (en) * | 2019-02-19 | 2020-02-21 | 洛阳Lyc轴承有限公司 | Multipurpose shaping top for bearing outer ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663095A (en) * | 2020-06-28 | 2020-09-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Combined carburizing tooling charging basket |
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