CN216326556U - Thin-wall ring piece machining tool - Google Patents
Thin-wall ring piece machining tool Download PDFInfo
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- CN216326556U CN216326556U CN202123064890.7U CN202123064890U CN216326556U CN 216326556 U CN216326556 U CN 216326556U CN 202123064890 U CN202123064890 U CN 202123064890U CN 216326556 U CN216326556 U CN 216326556U
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Abstract
The utility model provides a thin-wall ring machining tool. Comprises a base, a plurality of supporting seats and a pressing mechanism; the supporting seat and the pressing mechanism are movably connected with the base, and the supporting seats and the pressing mechanisms are arranged at intervals along the circumferential direction of the base; the pressing mechanism comprises a height adjusting assembly and a pressing plate arranged on the height adjusting assembly, and a radial pressing part and an axial pressing part are arranged on the pressing plate and are respectively used for pressing the thin-wall ring piece in the radial direction or the axial direction. According to the utility model, the blank of the thin-wall ring piece is arranged on the processing tool, so that the deformation of the thin-wall ring piece in the processing process is controlled, and the processing precision of the thin-wall ring piece is favorably improved.
Description
Technical Field
The utility model relates to the technical field of part machining, in particular to a thin-wall ring machining tool.
Background
The main bearing of the heading machine belongs to a low-speed heavy-load bearing, is a core component for bearing load when the heading machine is under severe working conditions such as excavation and rock breaking, and has high bearing capacity requirement. The floating ring is used as an embedded raceway of a main bearing of the tunneling machine, needs to cope with huge impact during working, has high requirement on the mechanical property of the floating ring, belongs to a thin-wall ring with large diameter and small wall thickness, is easy to deform, crack and have uneven structure when being forged independently, and restricts the product performance of the floating ring.
And most of the traditional annular blank forging processes adopt an axial die-splitting forging mode, so that although the process is simple, the raw material waste is large, only one workpiece can be forged at one time, and the production efficiency is low.
In summary, a thin-wall ring processing tool is urgently needed to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a thin-wall ring machining tool to solve the problem of deformation control of a thin-wall ring.
In order to achieve the purpose, the utility model provides a thin-wall ring processing tool which comprises a base, a plurality of supporting seats and a pressing mechanism, wherein the supporting seats are arranged on the base; the supporting seat and the pressing mechanism are movably connected with the base, and the supporting seats and the pressing mechanisms are arranged at intervals along the circumferential direction of the base; the pressing mechanism comprises a height adjusting assembly and a pressing plate arranged on the height adjusting assembly, and a radial pressing part and an axial pressing part are arranged on the pressing plate and are respectively used for pressing the thin-wall ring piece in the radial direction or the axial direction.
Preferably, the pressing plate is a Z-shaped structural member; the radial compression part is positioned on the right-angle inner side of the Z-shaped structural part, and the axial compression part is positioned at the bottom of the Z-shaped structural part.
Preferably, the pressure plate is rotatably connected with the height adjusting assembly.
Preferably, the pressing mechanism further comprises a mounting seat and a pressing screw rod; the height adjusting assembly is arranged on the mounting seat; the compression screw penetrates through the pressing plate and is in threaded connection with the mounting seat.
Preferably, the supporting seat and the pressing mechanism are both in sliding connection with the base, and a plurality of sliding rails are arranged on the base along the radial direction of the base.
The technical scheme of the utility model has the following beneficial effects:
(1) according to the utility model, the support seat and the pressing mechanism which are movably connected with the base are arranged on the thin-wall ring processing tool, so that the thin-wall ring processing tool can be suitable for supporting and fixing thin-wall rings with different specifications, and the deformation of the thin-wall rings during processing can be conveniently controlled; the pressing mechanism comprises a height adjusting assembly and a pressing plate, a radial pressing part and an axial pressing part are arranged on the pressing plate, multiple pressing modes can be realized on the thin-wall ring piece, and various machining procedures can be matched conveniently.
(2) In the utility model, the pressing plate is a Z-shaped structural member, and the radial compression and the axial compression of the thin-wall ring piece can be respectively realized through different parts of the pressing plate.
(3) According to the utility model, the position of the pressing plate can be conveniently adjusted through the rotary connection between the height adjusting component and the pressing plate, so that the pressing plate can compress the thin-wall ring blank when being positioned at the inner ring and the outer ring of the thin-wall ring blank, and the installation position of the compressing mechanism does not need to be integrally adjusted.
(4) In the utility model, the pressing mechanism is also provided with a pressing screw, when the thin-wall ring blank is axially pressed, the height position of the pressing plate is firstly adjusted through the height adjusting component, so that the axial pressing part is abutted against the upper surface of the thin-wall ring blank, and then the pressing screw is screwed tightly, so that further pressing is realized, and the situation of blank displacement in the processing process is avoided.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of a bearing outer ring and a floating ring in a main bearing according to an embodiment of the present application;
fig. 2 is a schematic view of a ring blank obtained in step B of the thin-walled ring processing method in the embodiment of the present application;
fig. 3 is a schematic diagram illustrating the cutting of the first blank and the second blank in step D of the thin-walled ring processing method in the embodiment of the present application;
FIG. 4 is a top view of a thin-walled ring machining tool in an embodiment of the present application;
FIG. 5 is a sectional view A-A of FIG. 4 in an embodiment of the present application;
FIG. 6 is a schematic structural view of a platen in an embodiment of the present application;
FIG. 7 is a schematic view of the axial compression mode during the machining of the inner ring of the second blank in the embodiment of the application;
FIG. 8 is a schematic view of the radial compaction performed during machining of the upper surface of the second billet in the example of the present application;
FIG. 9 is a schematic view of the axial compression of the second blank outer ring during machining in the embodiment of the present application;
the device comprises a base 1, a base 1.1, a sliding rail 2, a supporting seat 3, a pressing mechanism 3.1, a height adjusting assembly 3.2, a pressing plate 3.2.1, a radial pressing part 3.2.2, an axial pressing part 3.3, a mounting seat 3.4, a pressing screw rod 4, a bearing outer ring 5, a floating ring 6, a ring blank 7, a radial annular groove 8, a first blank 9 and a second blank.
Detailed Description
Embodiments of the utility model will be described in detail below with reference to the drawings, but the utility model can be implemented in many different ways, which are defined and covered by the claims.
Example (b):
referring to fig. 1 to 9, the embodiment of the thin-wall ring processing tool is applied to processing, manufacturing and deformation control of a bearing outer ring and a floating ring of a main bearing of a heading machine. Referring to fig. 1, the main bearing of the heading machine comprises a bearing outer ring 4 and a floating ring 5, wherein the floating ring 5 is a thin-wall ring prepared in the embodiment.
A thin-wall ring machining tool comprises a base 1, a plurality of supporting seats 2 and a pressing mechanism 3; the supporting seats 2 and the pressing mechanisms 3 are movably connected with the base 1, and the supporting seats 2 and the pressing mechanisms 3 are arranged at intervals along the circumferential direction of the base 1, as shown in fig. 4; the pressing mechanism 3 comprises a height adjusting component 3.1 and a pressing plate 3.2 arranged on the height adjusting component 3.1, wherein a radial pressing part 3.2.1 and an axial pressing part 3.2.2 are arranged on the pressing plate 3.2 and are respectively used for pressing the thin-wall ring piece in the radial direction or the axial direction, so that the deformation of the thin-wall ring piece in the processing process is controlled, and the processing precision of the thin-wall ring piece is improved.
Referring to fig. 6, the press plate 3.2 is a Z-shaped structural member; the radial pressing part 3.2.1 is positioned at the right-angle inner side of the Z-shaped structural member, and the radial pressing of the thin-wall ring blank is realized by abutting the radial pressing part 3.2.1 against the circumferential surface of the inner ring or the outer ring of the thin-wall ring blank; the axial pressing part 3.2.2 is positioned at the bottom of the Z-shaped structural member, presses the axial pressing part 3.2.2 on the upper surface of the thin-wall ring blank, and is combined with the supporting seat 2 to realize the axial pressing of the thin-wall ring blank.
The pressing plate 3.2 is rotatably connected with the height adjusting component 3.1, so that the orientation of the pressing plate 3.2 can be adjusted conveniently, and the pressing plate can press the thin-wall ring blank when positioned at the inner ring and the outer ring of the thin-wall ring blank without integrally adjusting the installation position of the pressing mechanism 3, as shown in fig. 5, 7 to 9.
Referring to fig. 7 and 9, the pressing mechanism 3 further includes a mounting seat 3.3 and a pressing screw 3.4; the height adjusting assembly 3.1 is arranged on the mounting base 3.3; the pressing screw 3.4 penetrates through the pressing plate 3.2 and is in threaded connection with the mounting base 3.3, when the thin-wall ring blank is axially pressed, the height position of the pressing plate 3.2 is adjusted through the height adjusting assembly 3.1, the axial pressing portion 3.2.2 is abutted against the upper surface of the thin-wall ring blank, and then the pressing screw 3.4 is screwed down, so that further pressing is realized, and the situation of blank displacement in the machining process is avoided. In this embodiment, height adjusting component 3.1 is the adjusting bolt subassembly with mount pad 3.3 threaded connection, is equipped with the screw hole on the mount pad 3.3, and through the threaded connection position of adjustment height adjusting component 3.1 and mount pad 3.3, the adjustment of clamp plate 3.2 height position is realized to the degree of depth that height adjusting component 3.1 twisted the screw hole.
The supporting seat 2 and the pressing mechanism 3 are both connected with the base 1 in a sliding manner, and a plurality of sliding rails 1.1 are arranged on the base 1 along the radial direction of the base, as shown in fig. 4. Through adjusting the positions of the supporting seat 2 and the pressing mechanism 3, the thin-wall ring processing tool is suitable for supporting and fixing thin-wall ring blanks of different specifications, and the universality of the thin-wall ring processing tool is improved.
A thin-wall ring processing method adopts the thin-wall ring processing tool and comprises the following steps:
step A: forging the blank material to prepare a ring blank from the blank material;
because the floating ring 5 is a thin-wall ring with a large diameter and a small wall thickness, when the thin-wall ring is forged alone, the conditions of deformation, cracking, uneven structure and the like are easy to occur, and the mechanical properties of the floating ring 5 and the bearing outer ring 4 are different, so that the performance of the main bearing is influenced.
The blank used in the embodiment is used for forging blanks for forming the bearing outer ring 4 and the floating ring 5 (namely thin-wall ring members), the blanks for the bearing outer ring 4 and the floating ring 5 are used as a whole to be subjected to combined forging according to the forging process and requirements of the bearing outer ring 4, meanwhile, the process flows of heating, plastic deformation, cooling of a forged piece, punching and the like are carried out, and the ring blank 6 with consistent mechanical properties and uniform structure can be obtained after the inspection is qualified, wherein the inspection items comprise shape and size, surface quality, metallographic structure, mechanical properties and the like.
And B: roughly turning the inner ring and the outer ring of the ring blank 6, and turning a radial annular groove 7 on the inner ring of the ring blank 6;
after rough turning, reserving machining allowances in the axial direction of the inner ring of the ring blank 6, the outer ring of the ring blank 6 and the ring blank 6; the minimum distance L between the radial annular groove 7 and the end face of the ring blank is 8-10 mm larger than the thickness of the thin-wall ring piece.
In the embodiment, the radial machining allowance of the inner ring of the ring blank 6 is 5mm, the radial machining allowance of the outer ring of the ring blank 6 is 5mm, the total machining allowance in the radial direction of the ring blank 6 is 10mm, and the axial machining allowance of the ring blank 6 is 8mm, wherein the machining allowance is relative to the size of the bearing outer ring 4, and the thin-wall ring piece has fewer blanks, so that the blanks can be directly cut on the ring blank 6 of the bearing outer ring 4, and the purpose of saving the blanks is realized.
The minimum distance L between the radial annular groove 7 and the end face of the ring blank 6 is 8 mm-10 mm larger than the thickness of the thin-wall ring piece, and is used for reserving the axial machining allowance of the floating ring 5 blank, in the embodiment, the groove width of the radial annular groove 7 is less than 25mm, and the groove depth is less than 160mm, so that the machining allowance of the bearing outer ring 4 and the floating ring 5 is prevented from being influenced by the overlarge size of the radial annular groove 7.
And C: quenching and tempering the ring blank 6;
the blanks of the bearing outer ring 4 and the floating ring 5 are treated by thermal refining as a whole, so that the strength, the plasticity and the toughness of the ring blank 6 can be integrally improved, and the ring blank 6 with good comprehensive mechanical properties is obtained.
Step D: cutting the ring blank 6 after the thermal refining from the radial annular groove 7 (namely, firstly feeding the cutting from the radial annular groove 7 along the radial direction, and then feeding the cutting to the radial annular groove 7 from the axial direction) to obtain a first blank 8 and a second blank 9;
after all outer surfaces are roughly turned, the ring blank 6 is cut from the radial annular groove 7 and divided into a first blank 8 and a second blank 9, wherein the first blank 8 is used for preparing the bearing outer ring 4, the second blank 9 is used for preparing the floating ring 5 (namely a thin-wall ring piece), and when the cutting is carried out, the second blank 9 is ensured to have a machining allowance of more than 5mm in the radial direction. In the embodiment, the difference value of more than 15mm exists between the inner diameter of the bearing outer ring 4 at the splitting part and the outer diameter of the floating ring 5, so that the sufficient machining allowance can be ensured.
Step E: the first blank 8 and the second blank 9 are processed separately, in this embodiment, the second blank 9 is set on a thin-wall ring processing tool to be processed into a thin-wall ring (i.e. the floating ring 5).
In this embodiment, the first blank 8 and the second blank 9 after being split are respectively processed into the bearing outer ring 4 and the floating ring 5, wherein the step of processing the floating ring 5 is as follows:
e1: according to the specification of the second blank 9, the supporting seat 2 and the pressing mechanism 3 on the sliding rail 1.1 are slid, so that the supporting seat 2 is located at a proper position to support the second blank 9, and the pressing mechanism 3 is located at a proper position to fix the second blank 9; in this embodiment, in order to uniformly support and fix the annular second blank 9, the plurality of supporting seats 2 and the pressing mechanism 3 are uniformly arranged on the base 1.
E2: the second blank 9 is placed on the supporting seat 2, the radial pressing part 3.2.1 of the pressing plate 3.2 is abutted against the outer ring of the second blank 9, and as shown in fig. 5 or fig. 8, the upper surface and the lower surface of the second blank 9 are turned, and a reference surface C and a raceway surface D are machined.
E3: uniformly arranging a plurality of pressing mechanisms 3 along the outer ring of the second blank 9, enabling the axial pressing part 3.2.2 of the pressing plate 3.2 to abut against the upper surface of the second blank 9, and turning the inner ring of the second blank 9, as shown in fig. 7;
the pressing mechanisms 3 are uniformly arranged along the inner ring of the second blank 9, the axial pressing portion 3.2.2 of the pressing plate 3.2 is abutted against the upper surface of the second blank 9, and the outer ring of the second blank 9 is turned, as shown in fig. 9.
E4: after grinding the end face of the thin-wall ring member (i.e. the floating ring 5), quenching the upper and lower end faces of the thin-wall ring member (i.e. the floating ring 5), as can be seen from fig. 1, the upper end face of the floating ring 5 is in contact with the roller, the lower end face is in contact with the belleville spring set, and the mechanical properties of the upper and lower end faces of the floating ring 5 can be improved by quenching.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A thin-wall ring machining tool is characterized by comprising a base (1), a plurality of supporting seats (2) and a pressing mechanism (3); the supporting seats (2) and the pressing mechanisms (3) are movably connected with the base (1), and the supporting seats (2) and the pressing mechanisms (3) are arranged at intervals along the circumferential direction of the base (1); the pressing mechanism (3) comprises a height adjusting assembly (3.1) and a pressing plate (3.2) arranged on the height adjusting assembly (3.1), wherein a radial pressing part (3.2.1) and an axial pressing part (3.2.2) are arranged on the pressing plate (3.2) and are respectively used for pressing the thin-wall ring piece in the radial direction or the axial direction.
2. The thin-walled ring machining tool according to claim 1, characterized in that the pressing plate (3.2) is a Z-shaped structural member; the radial pressing part (3.2.1) is located on the right-angle inner side of the Z-shaped structural part, and the axial pressing part (3.2.2) is located at the bottom of the Z-shaped structural part.
3. The thin-walled ring machining tool according to claim 1, characterized in that the pressure plate (3.2) is rotatably connected with the height adjusting assembly (3.1).
4. The thin-walled ring machining tool according to any one of claims 1 to 3, characterized in that the pressing mechanism (3) further comprises a mounting seat (3.3) and a pressing screw (3.4); the height adjusting assembly (3.1) is arranged on the mounting seat (3.3); the compression screw (3.4) penetrates through the pressing plate (3.2) and is in threaded connection with the mounting base (3.3).
5. The thin-wall ring machining tool according to claim 1, characterized in that the supporting seat (2) and the pressing mechanism (3) are connected with the base (1) in a sliding manner, and a plurality of sliding rails (1.1) are arranged on the base (1) along the radial direction of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123064890.7U CN216326556U (en) | 2021-12-08 | 2021-12-08 | Thin-wall ring piece machining tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123064890.7U CN216326556U (en) | 2021-12-08 | 2021-12-08 | Thin-wall ring piece machining tool |
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| Publication Number | Publication Date |
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| CN216326556U true CN216326556U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123064890.7U Active CN216326556U (en) | 2021-12-08 | 2021-12-08 | Thin-wall ring piece machining tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491472A (en) * | 2022-11-03 | 2022-12-20 | 中国铁建重工集团股份有限公司 | Quenching anti-deformation device for ring part and thin-wall part machining method |
-
2021
- 2021-12-08 CN CN202123064890.7U patent/CN216326556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491472A (en) * | 2022-11-03 | 2022-12-20 | 中国铁建重工集团股份有限公司 | Quenching anti-deformation device for ring part and thin-wall part machining method |
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