CN111804856A - A Parallel Drive Single Ring Roller Spinning Mechanism - Google Patents

Abstract

The invention discloses a parallel-transmission single-ring roller rotary rolling mechanism which comprises a ring roller assembly, a rack, a bottom plate seat and a transmission assembly, wherein the rack is arranged on the rack; the ring roller assembly is arranged in the frame; the frame is arranged above the bottom plate seat and is rotationally connected with the bottom plate seat; the transmission assembly is fixedly arranged on the frame; the transmission assembly penetrates through the machine frame and is meshed with the driven cylindrical gear of the ring roller assembly. The invention realizes the adjustment of three process parameters of the contact spin-rolling of the inner surface of the ring roller and the outer surface of the tubular workpiece; the driving cylindrical gear is driven by the coupler, so that the power transmission problem when the sleeve on the left and the right of the ring roller bracket rotates around the self rotation center line to adjust the feeding angle is solved; the problem of pressing adjustment is solved by the axial translation of the sleeves on the left and right of the ring roller support; the deflection problem of the ring roller is solved through the rotation of the cylindrical boss on the lower surface of the bottom plate of the machine frame.

Description

A Parallel Drive Single Ring Roller Spinning Mechanism

technical field

The invention relates to the technical field of spinning and rolling, in particular to a single-ring roll spinning mechanism with parallel transmission.

Background technique

Spinning and rolling are the main processing methods for high-end tubular workpieces. Spinning is widely used because of its good surface quality and small deformation force. The cross-rolling process can achieve large rolling and provide larger force and energy parameters, but the surface quality is poor, and the additional deformation of the workpiece is more obvious. In the traditional rotary wheel spinning machine and skew rolling, the outer surface of the deformation die is in contact with the outer surface of the workpiece. The contact angle of the rotary wheel or the roller and the blank of the tubular workpiece is small, which is prone to longitudinal cracks and deformation. Defects such as obvious ripples appear on the surface. Combining spinning and skew rolling makes it possible to take into account the advantages of the two processes when the axis of the rotary wheel and the mandrel are set at a staggered angle (feeding angle). However, the traditional spinning method has a limited function of adjusting the attitude of the roller, and the skew rolling method can adjust the attitude of the roll, but the structure is complicated. At the same time, in order to be able to process thick-walled tube-shaped workpieces, the spinning method of the ring-shaped roller (ring roll) can make the tube-shaped workpiece and the ring roll contact deformation area with a larger wrap angle and a larger metal axial elongation. and smaller circumferential deformation and radial deformation rates.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a single-ring roll rolling mechanism with parallel transmission, so as to solve the problems existing in the above-mentioned prior art. And the rotation of the frame can realize the adjustment of the three process parameters of the reduction and thinning, the deflection angle of the roll and the feeding angle.

In order to achieve the above purpose, the present invention provides the following solutions: the present invention provides a single-ring roll rolling mechanism with parallel transmission, comprising: a ring roll assembly, a frame, a base plate seat and a transmission assembly; the ring roll assembly is installed on the the frame is arranged above the bottom plate base and is rotatably connected with the bottom plate base; the transmission assembly is fixedly arranged on the frame; the transmission assembly penetrates the frame and is connected with the ring The driven spur gear of the roller assembly meshes.

Preferably, the present invention is based on that the inner surface of the ring roll is in contact with the outer surface of the tubular workpiece and spin-rolled, so that the deformation zone in contact with the tubular blank has a larger wrap angle, and the material has smaller circumferential deformation and The radial deformation rate and the large axial elongation of the metal are an economical and rapid technology for forming thin-walled rotary parts; at the same time, it can realize the independent adjustment of the reduction reduction and the feeding angle. The vertical arrangement of the gear shaft and the axis of the tubular workpiece solves the interference problem between the roller transmission device and the support at both ends of the tubular workpiece, the transmission of the tubular workpiece, and the adjustment of the feeding angle. The adjustment of the feeding angle and the main drive layout problem.

The frame is of a rectangular structure; a second circular hole is formed in the center of two opposite faces of the frame; a sixth circular hole is also formed on any surface of the two opposite faces of the frame; The axis is parallel to the rotation axis of the second circular hole and is on the same horizontal plane; the center of the remaining two opposite surfaces of the frame is respectively provided with a third circular hole for fixing and installing the ring roller assembly.

The ring roller assembly also includes a ring roller, a ring roller body and a bracket; the ring roller is a ring roller; the ring roller is installed on the inner surface of the ring roller barrel, and the driven spur gear is installed on the ring roller. On the roller body, a bearing is provided on both sides of the driven cylindrical gear.

Preferably, the ring roller can be installed on the inner surface of the ring roller cylinder or at one end of the ring roller cylinder.

The inner surface of the ring roller is convex toward the central axis of the ring roller, and is an annular surface swept by an arc-shaped curve generatrix.

A first circular hole is defined in the center of two opposite side surfaces of the bracket; The circular holes are in the same horizontal plane; the center of the other two sides of the bracket is respectively formed with a sleeve outward; the two first circular holes are matched with the ring roller body through the two bearings; the two sleeves are installed separately In the corresponding third circular hole; the first circular hole, the second circular hole and the central axis of the ring roller body coincide; the central axis of the fifth circular hole and the sixth circular hole coincide.

Preferably, the fifth circular hole is adjacent to the sixth circular hole for installing the transmission assembly.

The bottom of the frame is also provided with a bottom plate, the bottom plate includes a central part and an extension part arranged on one side of the central part; a boss is formed on the bottom surface of the central part, and the boss is installed on the the fourth round hole opened on the base plate seat; the transmission component is fixedly arranged on the extension part.

Preferably, the central axis of the boss is set to X3.

The transmission assembly includes a driving cylindrical gear shaft, a motor and a coupling; two bearings are sleeved at both ends of the driving cylindrical gear shaft, and the driving cylindrical gear shaft is mounted on the two fifth circles through the two bearings. one end of the coupling is connected with the drive cylindrical gear shaft with a key, and the other end is connected with the output end of the motor in a transmission connection; the drive cylindrical gear shaft is meshed with the driven cylindrical gear.

Further, the motor is fixedly arranged on the extension part; and the coupling adopts a universal coupling.

Preferably, the central axis of the ring roller is set as X1, and the central axis of the driving spur gear shaft is set as X2.

Preferably, the shaft end feather key or the guide flat key of the driving spur gear shaft is connected with the coupling.

A side push adjustment jack wire and a feed angle adjustment jack wire are also provided; the feed angle adjustment jack wire is arranged on the two opposite surfaces where the second round hole is opened; the side push adjustment jack wire is arranged on the The other two opposite surfaces of the frame; the side push adjustment jacks and the feed angle adjustment jacks are provided with a number of them, and they all run through the vertical surfaces to which they belong and are in conflict with the side walls of the bracket.

A frame adjustment jack wire is also provided; two uprights are formed on the edge of the upper surface of the base plate, and the two uprights are symmetrical about the center of the fourth circular hole; the two uprights are both provided with the same mounting holes; the machine There are two rack adjusting jack screws, which are installed in the mounting holes of the two uprights, respectively penetrate the rack and interfere with the side walls of the bracket.

The preferred frame adjustment jack wire, side push adjustment jack wire and feed angle adjustment jack wire adjust the position of the ring roll, respectively, to generate the thinning amount Δt and the feed angle β, so that the billet can be formed and rotated according to different requirements. .

The invention discloses the following technical effects: the invention realizes the adjustment of three process parameters of the contact spinning between the inner surface of the ring roll and the outer surface of the tubular workpiece. The coupling is used to drive the driving cylindrical gear, which solves the problem of power transmission when the left and right sleeves of the ring roller support rotate around the center line of their own rotation to adjust the feeding angle; the axial translation of the left and right sleeves of the ring roller support solves the problem. The problem of pressing down adjustment; the yaw problem of the ring roller is solved by the rotation of the cylindrical boss on the lower surface of the frame bottom plate.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic diagram of the ring roll assembly of the present invention.

Figure 3 is a schematic view of the structure of the ring roll of the present invention.

Figure 4 is an isometric view of the frame structure of the present invention.

Figure 5 is a rear side view of the frame structure of the present invention.

FIG. 6 is a schematic diagram of the structure of the base plate seat of the present invention.

FIG. 7 is a schematic diagram of the structure of the stent of the present invention.

Figure 8 is a schematic diagram of the transmission assembly of the present invention.

Among them, 1-ring roller assembly; 11-ring roller; 12-ring roller body; 13-driven bevel gear; 14-ring surface; 2-frame; 21-second round hole, 22-third round hole ; 23- base plate; 24- extension part; 25- sixth round hole; 26- boss; 3- base plate seat; 31- fourth round hole; 32- column; 4- bracket; 41- first round hole; 42 -Sleeve; 43-Fifth round hole, 5-Transmission component; 51-Drive bevel gear shaft; 52-Coupling; 53-Motor; 8-Rack adjustment top wire; 9-Tube-shaped workpiece; 10-Mand rod; X1-Central axis of ring roller; X2-Central axis of driving bevel gear shaft; X3-Central axis of boss; Δt-Thinning amount and β- Feed angle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The present invention provides a single ring roll spinning mechanism with parallel transmission, comprising: a ring roll assembly 1, a frame 2, a base plate 3 and a transmission assembly 5; the ring roll assembly 1 is installed in the frame 2; the frame 2 is arranged in Above the bottom plate base 3 and rotatably connected with the bottom plate base 3 ; the transmission assembly 5 is provided with two groups and is fixedly arranged on the frame 2 ;

The frame 2 has a rectangular structure; a second circular hole 21 is provided in the center of the two opposite faces of the frame 2; The rotation axes of the second circular holes 21 are parallel and on the same horizontal plane; the center of the other two opposite surfaces of the frame 2 is respectively provided with a third circular hole 22 for fixing and installing the ring roller assembly 1 .

The ring roller assembly 1 also includes a ring roller 11, a ring roller body 12 and a bracket 4; the ring roller 11 is a ring cylindrical roller; the ring roller 11 is installed on the inner surface of the ring roller body 12, and the driven cylindrical gear 13 is installed on the ring roller On the cylinder body 12 , a bearing is provided on both sides of the driven cylindrical gear 13 .

The inner surface of the ring roller 11 protrudes toward the central axis of the ring roller 11 , and is swept by the arc-shaped curved generatrix to form an annular curved surface 14 .

A first round hole 41 is defined in the center of the two opposite side surfaces of the bracket 4; On the same horizontal plane; the center of the other two sides of the bracket 4 is respectively formed with a sleeve 42 outward; the two first circular holes 41 are matched with the ring roller body 12 through two bearings; the two sleeves 42 are respectively installed in the corresponding third circular holes 22; the first circular hole 41, the second circular hole 21 and the central axis of the ring roller body 12 coincide; the fifth circular hole 43 and the central axis of the sixth circular hole 25 coincide.

The bottom of the rack 2 is also provided with a bottom plate 23, and the bottom plate 23 includes a central portion and an extension portion 24 arranged on one side of the central portion; In the fourth round hole 31 ; the transmission assembly 5 is fixedly arranged on the extension part 24 .

The transmission assembly 5 includes a drive spur gear shaft 51, a motor 53 and a coupling 52; two bearings are sleeved at both ends of the drive spur gear shaft 51, and the drive spur gear shaft 51 is installed in the two fifth round holes 43 through the two bearings; One end of the coupling 52 is connected with the driving spur gear shaft 51 by a key, and the other end is connected with the output end of the motor 53 in a transmission connection; the driving spur gear shaft 51 is engaged with the driven spur gear 13 .

Also provided with a side push adjustment jack wire 6 and a feed angle adjustment jack wire 7; the feed angle adjustment jack wire 7 is arranged on the two opposite surfaces with the second round hole 21; the side push adjustment jack wire 6 is arranged on the frame 2 The other two opposite surfaces; the side push adjusting top wire 6 and the feeding angle adjusting top wire 7 are provided with a number of them, and they all run through the vertical surfaces to which they belong and are in conflict with the side walls of the bracket 4 .

A rack adjustment top wire 8 is also provided; two uprights 32 are also formed on the edge of the upper surface of the base plate 3, and the two uprights 32 are symmetrical about the center of the fourth round hole 31; the two uprights 32 are both provided with the same mounting holes; There are two jack wires 8 installed in the two mounting holes, and are arranged on the same side as the feed angle adjustment jack wires 7 , and respectively penetrate through their respective elevations and interfere with the side walls of the bracket 4 .

A blank is also provided, and the blank completely penetrates the two second circular holes 21; the blank includes a mandrel 10 and a tubular workpiece 9 sleeved on the outer surface of the mandrel 10; the outer surface of the tubular workpiece 9 is in contact with the annular curved surface 14 .

In an embodiment of the present invention, there are four side-push adjusting jacks 6 and feeding angle adjusting jacks 7 on a vertical surface at equal intervals, and are respectively arranged just above and below the circular hole.

In yet another embodiment of the present invention, taking the processing of a seamless steel pipe with a blank size of φ57 mm as an example, the equipment structure is adjusted to meet the processing requirements. The blank size of the tubular workpiece 9 is: outer diameter φ57mm, wall thickness 35mm; core mold 10 size: inner diameter φ50mm The inner surface of the tubular workpiece 9 is sleeved on the outer surface of the mandrel 10 .

The specific adjustment process is as follows:

The ring roller 11 is installed on the inner surface of the ring roller body 12, and the feed angle adjustment jack screw 7 runs, so that the sleeves 42 in the two groups of brackets 4 are respectively rotated around the axis X2 of the third circular hole 22 in the frame 2, from The driving cylindrical gear 13 rotates around the axis X2 of the driving cylindrical gear 51 as a whole without changing the meshing relationship with the driving cylindrical gear 51; adjust the feeding angle β=0.5°; The table 26 and the fourth circular hole 31 rotate in the axis X3, and the adjustment angle γ=10°; A circular hole 41 is moved to the lowest position in contact with the annular curved surface 14; the side push adjustment jack wire 6 is adjusted so that the annular curved surface 14 of the two sets of annular cylindrical rollers 11 is in contact with the outer surface of the tubular workpiece 9 blank to determine the amount of thinning Adjust the base point A, the tubular workpiece 9 is withdrawn, and the side push adjustment jack screw 6 runs, so that the base point A moves in the direction of the axis X1 to adjust the amount of thinning, especially the two groups of ring roller brackets 4 move in opposite directions, and the amount of thinning after adjustment is Δt=1.5mm.

The transmission assembly 5 is running, the motor 53 is installed on the extension part 24, especially two motors; when the motor 53 is running, the driving spur gear shaft 51 is driven to rotate in the fifth circular hole 43 through the coupling 52, and the driven spur gear 13 is driven. The driven cylindrical gear 13 is connected with the ring roller body 12, and drives the ring roller body 12 to rotate around the axis X2 in the first circular hole 41 of the bracket 4; the ring roller 11 is installed on the inner surface of the ring roller body 12, It rotates with the ring roller body 12 . The motor input speed n=800rpm, the bevel gear reduction ratio i=4, and the ring roller output speed n'=200rpm.

The blank is fed at a constant speed, and the feeding speed is v=2mm/s. The blank of the tubular workpiece 9 is processed uniformly under the rotation of the ring roller.

The invention discloses the following technical effects: the invention realizes the adjustment of three process parameters of the contact spinning between the inner surface of the ring roll and the outer surface of the tubular workpiece. The coupling is used to drive the driving cylindrical gear, which solves the problem of power transmission when the left and right sleeves of the ring roller support rotate around the center line of their own rotation to adjust the feeding angle; the axial translation of the left and right sleeves of the ring roller support solves the problem. The problem of pressing down adjustment; the yaw problem of the ring roller is solved by the rotation of the cylindrical boss on the lower surface of the frame bottom plate.

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The above-mentioned embodiments are only to describe the preferred modes of the present invention, but not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Variations and improvements should fall within the protection scope determined by the claims of the present invention.

Claims (10)

1. The utility model provides a parallel drive's monocyclic roller rolls mechanism soon which characterized in that includes: the device comprises a ring roller assembly (1), a frame (2), a bottom plate seat (3) and a transmission assembly (5); the ring roller assembly (1) is arranged in the frame (2); the rack (2) is arranged above the bottom plate seat (3) and is rotationally connected with the bottom plate seat (3); the two groups of transmission assemblies (5) are arranged and fixedly arranged on the rack (2); the transmission assembly (5) penetrates through the machine frame (2) and is meshed with a driven cylindrical gear (13) of the ring roller assembly (1).

2. The parallel driven single ring roll spin-rolling mechanism of claim 1, wherein: the rack (2) is of a rectangular structure; the centers of two opposite surfaces of the frame (2) are respectively provided with a second round hole (21); any surface of two opposite surfaces of the frame (2) is also provided with a sixth round hole (25); the rotary axis of the sixth round hole (25) is parallel to the rotary axis of the second round hole (21) and is positioned on the same horizontal plane; and the centers of the other two opposite surfaces of the frame (2) are respectively provided with a third round hole (22) for fixedly mounting the ring roller assembly (1).

3. The parallel driven single ring roll spin-rolling mechanism of claim 2, wherein: the ring roller assembly (1) further comprises a ring roller (11), a ring roller body (12) and a bracket (4); the ring roller (11) is a ring-shaped roller; the ring roller (11) is arranged on the inner surface of the ring roller body (12), the driven cylindrical gear (13) is arranged on the ring roller body (12), and two bearings are respectively arranged on two sides of the driven cylindrical gear (13).

4. The parallel driven single ring roll spin-rolling mechanism of claim 3, wherein: the inner surface of the ring roller (11) protrudes to the central axis of the ring roller (11) and is swept by an arc-shaped curved bus to form an annular curved surface (14).

5. The parallel driven single ring roll spin-rolling mechanism of claim 3, wherein: the centers of two opposite side surfaces on the bracket (4) are respectively provided with a first round hole (41); two coaxial fifth round holes (43) are formed in one side of the two first round holes (41), and the fifth round holes (43) and the first round holes (41) are located on the same horizontal plane; the centers of the other two side surfaces of the bracket (4) are respectively outwards formed with a sleeve (42); the two first round holes (41) are matched with the annular roller body (12) through two bearings; the two sleeves (42) are respectively arranged in the corresponding third round holes (22); the first round hole (41), the second round hole (21) and the central axis of the ring roller body (12) are superposed; the central axis of the fifth round hole (43) is superposed with that of the sixth round hole (25).

6. The parallel driven single ring roll spin-rolling mechanism of claim 2, wherein: the bottom of the rack (2) is also provided with a bottom plate (23), and the bottom plate (23) comprises a central part and an extension part (24) arranged on one side of the central part; a boss (26) is formed on the central bottom surface of the central part downwards, and the boss (26) is arranged in a fourth round hole (31) formed in the bottom plate seat (3); the extending part (24) is fixedly provided with the transmission assembly (5).

7. The parallel driven single ring roll spin-rolling mechanism of claim 5, wherein: the transmission assembly (5) comprises a driving cylindrical gear shaft (51), a motor (53) and a coupling (52); two bearings are sleeved at two ends of the driving cylindrical gear shaft (51), and the driving cylindrical gear shaft (51) is installed in the two fifth round holes (43) through the two bearings; one end of the coupler (52) is connected with the driving cylindrical gear shaft (51) in a key mode, and the other end of the coupler is in transmission connection with the output end of the motor (53); the driving cylindrical gear shaft (51) is meshed with the driven cylindrical gear (13).

8. The parallel driven single ring roll spin-rolling mechanism of claim 2, wherein: a lateral pushing adjusting jackscrew (6) and a feeding angle adjusting jackscrew (7) are also arranged; the feeding angle adjusting jackscrew (7) is arranged on two opposite surfaces provided with the second round holes (21); the lateral pushing adjusting jackscrews (6) are arranged on the other two opposite surfaces of the rack (2); the side-push adjusting jackscrew (6) and the feeding angle adjusting jackscrew (7) are provided with a plurality of jackscrews, penetrate through the vertical faces of the side-push adjusting jackscrews and are abutted against the side wall of the support (4).

9. The parallel driven single ring roll spin-rolling mechanism of claim 8, wherein: a frame adjusting jackscrew (8) is also arranged; two upright columns (32) are further formed on the edge of the upper surface of the bottom plate seat (3), and the two upright columns (32) are centrosymmetric with respect to the fourth round hole (31); the two upright posts (32) are provided with the same mounting holes; the two frame adjusting jackscrews (8) are arranged in the two mounting holes, arranged on the same side with the feed angle adjusting jackscrew (7) and respectively penetrate through the vertical faces and are abutted against the side wall of the support (4).

10. The parallel driven single ring roll spin-rolling mechanism of claim 4, wherein: a blank is also arranged, and the blank completely penetrates through the two second round holes (21); the blank comprises a core rod (10) and a pipe-shaped workpiece (9) sleeved on the outer surface of the core rod (10); the outer surface of the tubular workpiece (9) is in contact with the annular curved surface (14).

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