CN209830148U - Cross roller bearing ring forging rolling device - Google Patents
Cross roller bearing ring forging rolling device Download PDFInfo
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- CN209830148U CN209830148U CN201920489754.6U CN201920489754U CN209830148U CN 209830148 U CN209830148 U CN 209830148U CN 201920489754 U CN201920489754 U CN 201920489754U CN 209830148 U CN209830148 U CN 209830148U
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Abstract
The utility model discloses a device for rolling crossed roller bearing ring forgings, which comprises a mandrel of a ring rolling machine, install assembled mould assembly at the dabber, assembled mould assembly establishes the outside sleeve pipe at the dabber including the cover, and the position that sheathed tube circumference is close to the lower extreme is equipped with the step portion with a set of pipe body coupling, and the top position from the bottom up of step portion is equipped with bottom support ring, mould, upper portion support ring and packing ring in proper order, and upper portion support ring equals with bottom support ring's external diameter, and upper portion support ring's external diameter is greater than the biggest external diameter of mould, and sheathed tube top outer wall position is equipped with the external screw thread, the utility model has the advantages of simple structure and reasonable design, can be with rolling mould design split type structure, effectually avoided the mould to take place to lead to whole condemned phenomenon after damaging, reduced manufacturing cost to can be convenient for.
Description
Technical Field
The utility model belongs to the technical field of the forging processingequipment, concretely relates to crossed roller bearing ring forging system device.
Background
The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body. At present, the bearing has various types, and different types of bearings can be selected according to different use occasions, wherein the crossed roller bearing is a special type bearing with an inner ring divided and an outer ring rotating. Since the divided inner ring or outer ring is fixed to the cross roller collar after the rollers and the space holders are fitted therein to prevent separation from each other, the operation of mounting the cross roller collar is simple. Because the rollers are arranged in a crossed manner, the load in all directions can be borne by only 1 set of crossed roller collars, and compared with the traditional model, the rigidity is improved by 3-4 times. Meanwhile, since the inner ring or the outer ring of the crossed roller bearing is of a two-split structure, the bearing clearance can be adjusted, and even if preload is applied, high-precision rotational motion can be obtained.
The ring of the traditional bearing is mostly processed by turning, grinding and the like, but for a large-scale crossed roller bearing, because the size of the ring is overlarge, the traditional mechanical processing mode is not suitable, a ring rolling machine is adopted in the prior art to process the ring in a rolling mode, and the ring is a ring piece, so the processing mode is also called a ring piece rolling method, the ring piece rolling is a plastic forming process which reduces the wall thickness of the ring piece, enlarges the diameter and deforms the section profile by means of the ring rolling machine, compared with the integral die forging, the ring rolling method has the obvious advantages of greatly reducing the equipment tonnage and investment, reducing the vibration impact, saving energy and materials, reducing the production cost and the like, and is an advanced seamless processing technology for various ring pieces such as bearing rings, gear rings, flange rings, train wheels, wheel hubs, gas turbine rings and the like.
At present, at the in-process of rolling the lasso, because the lasso kind is different, need install different moulds on the dabber of ring rolling machine, and current mould formula structure as an organic whole, the structure is heavy, when carrying out the processing of different kinds of lassos, need spend a large amount of operating time and carry out the change of mould, and because mould weight is heavier, accident also takes place easily, after the mould is impaired, because mould wholeness characteristics cause scrapping of mould, the cost is increased, the production efficiency of bearing ring is reduced.
Disclosure of Invention
The utility model discloses a solve above-mentioned technical problem, provide a device is rolled to crossed roller bearing ring forging, can be with rolling the mould design for split type structure, effectually avoided the mould to take place to lead to whole condemned phenomenon after damaging, reduced manufacturing cost to can be convenient for assemble and dismantle, be favorable to production efficiency's improvement.
The utility model adopts the technical proposal that: a cross roller bearing ring forging rolling device comprises a mandrel of a ring rolling machine, wherein an assembled die assembly is mounted on the mandrel, the assembled die assembly comprises a sleeve which is sleeved outside the mandrel, a step part which is integrally connected with the sleeve is arranged at a position, close to the lower end, of the circumference of the sleeve, a bottom support ring, a die, an upper support ring and a gasket are sequentially sleeved above the step part from bottom to top, the outer diameters of the upper support ring and the bottom support ring are equal, the outer diameter of the upper support ring is larger than the maximum outer diameter of the die, external threads are arranged at the position of the outer wall above the sleeve, and a locking nut is connected above the outer wall of; the mold comprises a body and an annular bulge part which is integrally connected to the middle part of the outer ring of the body and has a triangular section.
The die is characterized by further comprising a ring blank which is in contact with the outer wall of the die, the outer diameter of the ring blank is driven by a driving roller of a ring rolling machine, and guide rollers which play a role in guiding are arranged on the two sides of the driving roller.
And the other end of the ring blank is provided with two axial conical rollers which are arranged on the ring rolling machine and are respectively arranged at the upper side and the lower side of the ring blank.
The cross section of the annular convex part is an isosceles triangle, and two equal sides of the isosceles triangle are symmetrically arranged relative to the horizontal plane.
The isosceles triangle is an isosceles right triangle.
When the ring rolling machine works, the ring blank is arranged between the driving roller and the mandrel, the ring blank is positioned between the upper support ring and the lower support ring, the ring rolling machine is started, the driving roller drives the ring blank to rotate, the inner diameter of the ring blank is rolled by using the die, the inner diameter of the ring blank is gradually increased, and the shape of the inner wall of the ring blank corresponds to that of the outer wall of the die; meanwhile, the thickness of the ring blank is gradually reduced by the axial conical roller until the ring blank reaches the size requirement and then stops working; when another sleeve is required to be rolled, the locking nut is loosened until the locking nut is disassembled, the washer, the upper support ring and the die are disassembled in sequence, the new die is replaced, the upper support ring, the washer and the locking nut are installed again, and therefore the purpose of replacing the die can be achieved, and the device is convenient and fast.
The assembled die assembly comprises a sleeve sleeved outside the mandrel, and a step part integrally connected with the sleeve is arranged at the position, close to the lower end, of the circumference of the sleeve; the purpose of this is: the sleeve is used as an installation carrier, so that the damage to the mandrel caused by the direct installation of the die, the upper support ring and the bottom support ring on the mandrel is avoided, the whole assembly type die assembly can be conveniently disassembled and installed, and the step part is used for limiting the downward movement of the part sleeved on the sleeve, so that the purpose of positioning is achieved.
A bottom support ring, a die, an upper support ring and a gasket are sequentially sleeved at the position above the step part from bottom to top, the outer diameters of the upper support ring and the bottom support ring are equal, and the outer diameter of the upper support ring is larger than the maximum outer diameter of the die; the purpose of this is: the ring blank can be limited by the upper supporting ring and the bottom supporting ring, so that the ring blank is always contacted with the die during working, and the grinding quality of the workpiece is improved.
An external thread is arranged on the outer wall of the upper part of the sleeve, and the locking nut is connected to the upper part of the outer wall of the sleeve through a thread; the purpose of this is: the washer, the upper support ring, the die and the bottom support ring are locked on the sleeve through the locking nut, so that the relative movement among parts is avoided during working, and the stability of rolling processing is improved.
The die comprises a body and an annular bulge part which is integrally connected to the middle part of an outer ring of the body and has a triangular section; the purpose of this is: the cross roller bearing ring grinding machine can conveniently grind a workpiece into a shape corresponding to the shape of a die, and meets the processing requirement of the cross roller bearing ring.
The utility model has the advantages that: the utility model has the advantages of simple structure and reasonable design, can be with rolling the mould design for split type structure, effectually avoided the mould to take place to lead to whole condemned phenomenon after damaging, reduced manufacturing cost to can be convenient for assemble and dismantle, be favorable to production efficiency's improvement.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a view of the ring blank processing structure of the present invention.
The labels in the figure are: 1. a mandrel; 2. locking the nut; 3. a gasket; 4. an upper support ring; 5. a mold; 501. a body; 502. a boss portion; 6. a bottom support ring; 7. a sleeve; 8. a drive roller; 9. a guide roller; 10. ring blank; 11. and (4) axial conical rollers.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in the figure, the device for rolling the crossed roller bearing ring forge piece comprises a mandrel 1 of a ring rolling mill, wherein an assembly type die 5 assembly is installed on the mandrel 1, the assembly type die 5 assembly comprises a sleeve 7 sleeved outside the mandrel 1, a step part integrally connected with the sleeve 7 is arranged at a position, close to the lower end, of the circumference of the sleeve 7, a bottom support ring 6, a die 5, an upper support ring 4 and a gasket 3 are sequentially sleeved at the upper position of the step part from bottom to top, the outer diameters of the upper support ring 4 and the bottom support ring 6 are equal, the outer diameter of the upper support ring 4 is larger than the maximum outer diameter of the die 5, external threads are arranged at the upper outer wall position of the sleeve 7, and a locking nut 2; the mold 5 includes a body 501 and an annular protrusion 502 having a triangular cross section integrally connected to a middle portion of an outer ring of the body 501.
The ring rolling machine is characterized by further comprising a ring blank 10 contacted with the outer wall of the die 5, the outer diameter of the ring blank 10 is driven by a driving roller 8 of the ring rolling machine, and guide rollers 9 playing a role in guiding are arranged on the two sides of the driving roller 8.
The other end of the ring blank 10 is provided with two axial conical rollers 11 arranged on the ring rolling machine, and the two axial conical rollers 11 are respectively arranged at the upper side and the lower side of the ring blank 10.
The cross section of the annular convex part 502 is an isosceles triangle, and two equal sides of the isosceles triangle are symmetrically arranged relative to the horizontal plane.
The isosceles triangle is an isosceles right triangle.
When the ring rolling machine works, the ring blank 10 is arranged between the driving roller 8 and the mandrel 1, the ring blank 10 is positioned between the upper support ring 4 and the lower support ring, the ring rolling machine is started, the driving roller 8 drives the ring blank 10 to rotate, the inner diameter of the ring blank 10 is rolled by the mold 5, the inner diameter of the ring blank 10 is gradually increased, and meanwhile, the shape of the inner wall of the ring blank 10 corresponds to that of the outer wall of the mold 5; meanwhile, the thickness of the ring blank 10 is gradually reduced by the axial conical roller 11 until the ring blank 10 meets the size requirement and then stops working; when another sleeve 7 needs to be rolled, the locking nut 2 is loosened until the locking nut is disassembled, the washer 3, the upper support ring 4 and the die 5 are disassembled in sequence, the new die 5 is replaced, the upper support ring 4, the washer 3 and the locking nut 2 are installed again, and therefore the purpose of replacing the die 5 can be achieved, and the method is convenient and fast.
Claims (5)
1. The utility model provides a device is rolled to crossed roller bearing ring forging which characterized in that: the mold comprises a mandrel of a ring rolling machine, wherein an assembled mold assembly is arranged on the mandrel, the assembled mold assembly comprises a sleeve sleeved outside the mandrel, a step part integrally connected with the sleeve is arranged at a position, close to the lower end, of the circumference of the sleeve, a bottom support ring, a mold, an upper support ring and a gasket are sequentially sleeved above the step part from bottom to top, the outer diameters of the upper support ring and the bottom support ring are equal, the outer diameter of the upper support ring is larger than the maximum outer diameter of the mold, external threads are arranged at the position of the outer wall above the sleeve, and a locking nut is connected to the position above; the mold comprises a body and an annular bulge part which is integrally connected to the middle part of the outer ring of the body and has a triangular section.
2. The device for rolling the crossed roller bearing ring forge piece according to claim 1, wherein: the ring rolling machine is characterized by further comprising a ring blank contacted with the outer wall of the die, the outer diameter of the ring blank is driven by a driving roller of the ring rolling machine, and guide rollers playing a role in guiding are arranged on the two sides of the driving roller.
3. The device for rolling the crossed roller bearing ring forging according to claim 2, wherein: the other end of the ring blank is provided with two axial conical rollers which are arranged on the ring rolling machine and are respectively arranged at the upper side and the lower side of the ring blank.
4. The device for rolling the crossed roller bearing ring forge piece according to claim 1, wherein: the section of the annular convex part is an isosceles triangle, and two equal sides of the isosceles triangle are symmetrically arranged relative to the horizontal plane.
5. The device for rolling the crossed roller bearing ring forging according to claim 4, wherein: the isosceles triangle is an isosceles right triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489754.6U CN209830148U (en) | 2019-04-12 | 2019-04-12 | Cross roller bearing ring forging rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489754.6U CN209830148U (en) | 2019-04-12 | 2019-04-12 | Cross roller bearing ring forging rolling device |
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| Publication Number | Publication Date |
|---|---|
| CN209830148U true CN209830148U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920489754.6U Active CN209830148U (en) | 2019-04-12 | 2019-04-12 | Cross roller bearing ring forging rolling device |
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| CN (1) | CN209830148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024795A (en) * | 2020-09-25 | 2020-12-04 | 洛阳Lyc轴承有限公司 | Profiling grinding and expanding method and device for inner diameter of large annular forging |
| CN116422818A (en) * | 2023-06-10 | 2023-07-14 | 山西奔马铸锻有限公司 | Ring rolling machine die for symmetrical flange forging processing |
-
2019
- 2019-04-12 CN CN201920489754.6U patent/CN209830148U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024795A (en) * | 2020-09-25 | 2020-12-04 | 洛阳Lyc轴承有限公司 | Profiling grinding and expanding method and device for inner diameter of large annular forging |
| CN116422818A (en) * | 2023-06-10 | 2023-07-14 | 山西奔马铸锻有限公司 | Ring rolling machine die for symmetrical flange forging processing |
| CN116422818B (en) * | 2023-06-10 | 2023-08-15 | 山西奔马铸锻有限公司 | Ring rolling machine die for symmetrical flange forging processing |
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