Alignment roll finishing device for tubular workpiece

Abstract

The invention relates to the technical field of roll finishing, in particular to an alignment roll finishing device for a tubular workpiece. In order to solve the problem that deformation of the tubular workpiece is easily caused by an existing roll finishing method for the tubular workpiece, the invention provides a novel alignment roll finishing device for the tubular workpiece. Comprising a horizontal double-shaft machining center, a first outer supporting driving assembly, a second outer supporting driving assembly, an outer rolling assembly, an inner supporting driving assembly and an inner rolling assembly. The first outer supporting driving assembly and the second outer supporting driving assembly are used for driving the outer rolling assembly to move up and down, the inner supporting driving assembly is used for driving the inner rolling assembly to move up and down, and therefore alignment rolling machining of the inner cylindrical surface and the outer cylindrical surface of the tubular workpiece is achieved. By means of the roll finishing device, the situation that deformation is prone to occurring in the roll finishing process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rolling processing, in particular to the technical field of rolling processing suitable for tubular workpieces, and specifically to a positioning rolling processing device facing the tubular workpiece. Background Art

[0002] Tubular workpieces are widely used in the fields of industry, aerospace, military, etc., so the processing of tubular workpieces is also very important, especially the rolling processing of tubular workpieces. The traditional rolling processing method for tubular workpieces is to process the inner cylindrical surface or the outer cylindrical surface of the tubular workpiece alone, but this rolling processing method is easy to cause deformation of the tubular workpiece, especially the thin-walled tubular workpiece, thus affecting the final processing quality of the tubular workpiece. Summary of the invention

[0003] In order to solve the problem that the existing rolling processing method for tubular workpieces easily causes deformation of the tubular workpieces, the present invention provides a new positioning rolling processing device for tubular workpieces.

[0004] The present invention is achieved by adopting the following technical solutions: A positioning rolling processing device for a tubular workpiece, comprising a horizontal double-axis machining center, a positioning axis, a first outer support drive assembly, a second outer support drive assembly, an outer rolling assembly, an inner support drive assembly, and an inner rolling assembly; The horizontal double-axis machining center includes a moving spindle, a rotating spindle, a tool holder, and a three-jaw chuck that can realize linear feeding in the left and right directions. The moving spindle and the rotating spindle are distributed left and right and arranged coaxially. The tool holder is coaxially fixed to the right side of the moving spindle, and the three-jaw chuck is fixed to the left side of the rotating spindle. The positioning shaft is coaxially fixed to the right side of the tool handle; The first outer support driving assembly includes a first outer circular ring block, which is formed by splicing a first upper arc block, a first lower arc block, a first front arc block, and a first rear arc block separately. The first outer circular ring block is coaxially sleeved on the positioning shaft and arranged close to the right side of the tool handle. The first upper arc block and the first lower arc block are respectively fixedly connected to the top and bottom of the positioning shaft through a first hydraulic column, and the axial directions of the two first hydraulic columns are arranged in the up-down direction. The first front arc block and the first rear arc block are respectively fixedly connected to the front side and the rear side of the positioning shaft through a first connecting column. The second outer support driving assembly includes a second outer circular ring block and a second inner circular ring block. The second outer circular ring block is formed by splicing a second upper arc block, a second lower arc block, a second front arc block and a second rear arc block. The second outer circular ring block is coaxially arranged with the first outer circular ring block. The inner diameter and outer diameter of the second outer circular ring block are equal to the inner diameter and outer diameter of the first outer circular ring block. The second inner circular ring block is coaxially arranged in the second outer circular ring block and the inner diameter of the second inner circular ring block is larger than the outer diameter of the tubular workpiece to be rolled. The arc block and the second lower arc block are respectively fixedly connected to the top and bottom of the outer circumferential surface of the second inner circular ring block through a second hydraulic column, and the axial directions of the two second hydraulic columns are arranged in the up-down direction. The second front arc block and the second rear arc block are respectively fixedly connected to the front side and the rear side of the outer circumferential surface of the second inner circular ring block through a second connecting column, and the second front arc block and the second rear arc block are respectively fixedly connected to the first front arc block and the first rear arc block through a fixing column. The inner support driving assembly comprises a third upper arc block, a third lower arc block, and a third inner circular ring block. The third upper arc block and the third lower arc block are the upper and lower parts of the same circular ring block. The third upper arc block and the third lower arc block are symmetrically arranged on the radial outer side of the third inner circular ring block. The third upper arc block and the third lower arc block are respectively fixedly connected to the top and the bottom of the outer circumferential surface of the third inner circular ring block through a third hydraulic column. The axial directions of the two third hydraulic columns are arranged up and down. The third inner circular ring block is coaxially sleeved and fixed outside the positioning shaft and is arranged close to the right side of the first outer support driving assembly. The outer rolling assembly comprises an upper outer strip rolling block and a lower outer strip rolling block. The length directions of the upper outer strip rolling block and the lower outer strip rolling block are arranged along the left-right direction. The left and right ends of the upper outer strip rolling block are respectively fixedly connected to the right end face of the first upper arc block and the left end face of the second upper arc block. The left and right ends of the lower outer strip rolling block are respectively fixedly connected to the right end face of the first lower arc block and the left end face of the second lower arc block. The bottom of the upper outer strip rolling block and the top of the lower outer strip rolling block are both rotatably mounted with a plurality of outer rolling balls for rolling the outer circumferential surface of the tubular workpiece. The inner rolling assembly includes an upper inner strip rolling block and a lower inner strip rolling block. The length directions of the upper inner strip rolling block and the lower inner strip rolling block are arranged along the left-right direction. The top of the upper inner strip rolling block and the bottom of the lower inner strip rolling block are both rotatably installed with multiple inner rolling balls for rolling the inner circumferential surface of the pipe workpiece. The upper inner strip rolling block is fixed to the top of the third upper arc block, and the lower inner strip rolling block is fixed to the bottom of the third lower arc block.

[0005] Principle description: The processing device drives the outer rolling assembly to move up and down through the first outer support drive assembly and the second outer support drive assembly, and drives the inner rolling assembly to move up and down through the inner support drive assembly. Specifically, the first hydraulic column, the second hydraulic column, and the third hydraulic column are driven to extend and retract according to the wall thickness and inner diameter of the tubular workpiece, so that the first upper arc block, the first lower arc block, the second upper arc block, the second lower arc block, the third upper arc block, and the third lower arc block are moved up and down, thereby driving the inner rolling assembly and the outer rolling assembly to move up and down for adjustment. After adjustment, the rotation of the tubular workpiece is coordinated to realize the counter-position rolling processing of the inner and outer cylindrical surfaces of the tubular workpiece. Among them, when in use, the length of the inner rolling assembly and the outer rolling assembly needs to be determined according to the length of the tubular workpiece to be processed.

[0006] Furthermore, the oil ports of the two first hydraulic columns are located on the left side of the first hydraulic column, the oil ports of the two second hydraulic columns are located on the right side of the second hydraulic column, and the oil ports of the two third hydraulic columns are located on the left side of the third hydraulic column. The oil port positions are standardized, which facilitates the layout of hydraulic pipelines.

[0007] Furthermore, the first outer support driving assembly also includes a first inner ring block, which is coaxially arranged inside the first outer ring block, and the first inner ring block is sleeved outside the positioning shaft, wherein one of the first hydraulic columns is located between the first upper arc block and the top of the outer circumferential surface of the first inner ring block, and another first hydraulic column is located between the first lower arc block and the bottom of the outer circumferential surface of the first inner ring block, wherein one of the first connecting columns is located between the first front arc block and the front side of the outer circumferential surface of the first inner ring block, and another first connecting column is located between the first rear arc block and the rear side of the outer circumferential surface of the first inner ring block, and the left end face of the first inner ring block is provided with two axially arranged through holes respectively connected to the oil inlets of the two third hydraulic columns. When in use, the two hydraulic pipelines that need to be connected to the two third hydraulic columns are respectively passed through the two through holes and then respectively connected to the oil inlets of the two third hydraulic columns, so that the hydraulic pipeline wiring of the overall device is neat.

[0008] Furthermore, a first upper connecting ear is extended outwardly from the outer edge of the right end face of the first upper arc-shaped block, and a vertically arranged upper connecting hole is provided on the first upper connecting ear. A first upper connecting notch is provided on the outer edge of the left end face of the upper outer strip-shaped rolling block, which is matched with the first upper connecting ear. A first upper connecting notch is provided with a first upper threaded hole matched with the first upper connecting hole. The first upper connecting bolt passes through the first upper connecting hole and is tightened in the first upper threaded hole, thereby realizing a fixed connection between the right end face of the first upper arc-shaped block and the left end portion of the upper outer strip-shaped rolling block. This structure is convenient for installation and disassembly. Unloading; a first lower connecting ear extends outward from the outer edge of the right end face of the first lower arc-shaped block, and a vertically arranged first lower connecting ear is provided on the first lower connecting ear, and a first lower connecting notch matched with the first lower connecting ear is provided on the outer edge of the left end face of the lower outer strip-shaped rolling block, and a first lower threaded hole matched with the first lower connecting hole is provided on the first lower connecting notch, and the first lower connecting bolt passes through the first lower connecting hole and is tightened in the first lower threaded hole, thereby realizing a fixed connection between the right end face of the first lower arc-shaped block and the left end portion of the lower outer strip-shaped rolling block, and this structure is convenient for installation and disassembly.

[0009] Furthermore, a second upper connecting ear is extended outwardly from the outer edge of the left end face of the second upper arc-shaped block, and a vertically arranged second upper connecting hole is provided on the second upper connecting ear. A second upper connecting notch is provided on the outer edge of the right end face of the upper outer strip-shaped rolling block, which is matched with the second upper connecting ear. A second upper connecting notch is provided with a second upper threaded hole which is matched with the second upper connecting hole. The second upper connecting bolt passes through the second upper connecting hole and is tightened in the second upper threaded hole, thereby realizing a fixed connection between the left end face of the second upper arc-shaped block and the right end portion of the upper outer strip-shaped rolling block. This structure is convenient for installation and Disassembly; a second lower connecting ear extends outward from the outer edge of the left end face of the second lower arc block, and a vertically arranged second lower connecting ear is provided on the second lower connecting ear, and a second lower connecting notch matched with the second lower connecting ear is provided on the outer edge of the right end face of the lower outer strip-shaped rolling block, and a second lower threaded hole matched with the second lower connecting hole is provided on the second lower connecting notch, and the second lower connecting bolt passes through the second lower connecting hole and is tightened to the second lower threaded hole, thereby realizing a fixed connection between the left end face of the second lower arc block and the right end portion of the lower outer strip-shaped rolling block. This structure is convenient for installation and disassembly.

[0010] Furthermore, third upper connecting ears are extended upward from the left and right end portions of the top of the third upper arc block, and third upper connecting notches are provided on the left and right end portions of the bottom surface of the upper inner strip-shaped rolling block to match the third upper connecting ears, and vertically arranged third upper threaded holes are provided on the two third upper connecting ears, and third upper connecting notches are provided at the two third upper connecting notches to match the corresponding third upper threaded holes, and two third upper connecting bolts are tightened to the corresponding third upper threaded holes after passing through the corresponding third upper connecting holes, thereby fixing the upper inner strip-shaped rolling block to the top of the third upper arc block. This structure is convenient for installation and disassembly.

[0011] Furthermore, third lower connecting ears are extended downwardly from the left and right end portions of the bottom of the third lower arc block, and the left and right end portions of the top surface of the lower inner strip-shaped rolling block are provided with third lower connecting notches matched with the third lower connecting ears, and the third lower connecting ears are provided with vertically arranged third lower threaded holes, and the third lower connecting notches are provided with third lower connecting holes matched with the third lower threaded holes, and two third lower connecting bolts are passed through the corresponding third lower connecting holes and tightened to the corresponding third lower threaded holes, thereby fixing the lower inner strip-shaped rolling block to the bottom of the third lower arc block. This structure is convenient for installation and disassembly.

[0012] Furthermore, there are four external rolling balls rollingly installed at the bottom of the upper outer strip rolling block and the top of the lower outer strip rolling block, and the four external rolling balls are evenly arranged along the length direction of the upper outer strip rolling block or the lower outer strip rolling block, so the structure is concrete and standardized.

[0013] Furthermore, there are four inner rolling balls rollingly installed at the top of the upper inner strip rolling block and the bottom of the lower inner strip rolling block, and the four inner rolling balls are evenly arranged along the length direction of the upper inner strip rolling block or the lower inner strip rolling block, so the structure is concrete and standardized.

[0014] The beneficial effects of the present invention are as follows: 1) The rolling processing device can realize the simultaneous positioning and rolling processing of the inner and outer cylindrical surfaces of the tubular workpiece, avoiding the deformation that is easy to occur during the rolling processing, thereby ensuring the processing accuracy of the inner and outer cylindrical surfaces of the tubular workpiece, and ensuring the efficient implementation of the finishing and strengthening processing of the inner and outer cylindrical surfaces of the tubular workpiece; 2) The rolling processing device can realize the positioning and rolling processing of tubular workpieces with different apertures and different wall thicknesses; 3) The rolling processing device effectively improves the rolling processing efficiency of tubular workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the alignment rolling processing device of the present invention; Figure 2 is a structural schematic diagram of a first outer support drive assembly; Figure 3 This is a schematic diagram of the telescopic state of the first outer support driving assembly; Figure 4 is a structural schematic diagram of a second outer support driving assembly; Figure 5 It is a schematic diagram of the structure of the inner support drive assembly.

[0018] In the figure: 1-moving spindle, 2-rotating spindle, 3-tool handle, 4-three-jaw chuck, 5-positioning shaft, 6-first outer support drive assembly, 601-first upper arc block, 602-first lower arc block, 603-first front arc block, 604-first rear arc block, 605-first hydraulic column, 606-first connecting column, 607-first inner ring block, 608-through hole, 7-second outer support drive assembly, 701-second upper arc block, 702-second lower arc block, 703-second front arc block, 704-second rear arc Block, 705-second hydraulic column, 706-second connecting column, 707-second inner circular ring block, 8-inner support drive assembly, 801-third upper arc block, 802-third lower arc block, 803-third inner circular ring block, 804-third hydraulic column, 805-third upper threaded hole, 806-third lower threaded hole, 901-upper outer strip rolling block, 902-lower outer strip rolling block, 903-outer rolling ball, 101-upper inner strip rolling block, 102-lower inner strip rolling block, 103-inner rolling ball, 11-tubular workpiece. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0020] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 5 As shown, a positioning rolling processing device for a tubular workpiece includes a horizontal dual-axis machining center, a positioning axis 5, a first outer support drive assembly 6, a second outer support drive assembly 7, an outer rolling assembly, an inner support drive assembly 8, and an inner rolling assembly; The horizontal double-axis machining center includes a moving spindle 1 capable of realizing linear feeding in the left and right directions, a rotating spindle 2, a tool holder 3, and a three-jaw chuck 4. The moving spindle 1 and the rotating spindle 2 are distributed left and right and arranged coaxially. The tool holder 3 is coaxially fixed to the right side of the moving spindle 1, and the three-jaw chuck 4 is fixed to the left side of the rotating spindle 2. The positioning shaft 5 is coaxially fixed to the right side of the tool handle 3; The first outer support driving assembly 6 includes a first outer circular ring block, which is formed by splicing a first upper arc block 601, a first lower arc block 602, a first front arc block 603, and a first rear arc block 604. The first outer circular ring block is coaxially sleeved on the positioning shaft 5 and arranged close to the right side of the tool handle 3. The first upper arc block 601 and the first lower arc block 602 are respectively fixedly connected to the top and bottom of the positioning shaft 5 through a first hydraulic column 605. The axial directions of the two first hydraulic columns 605 are arranged in the up-down direction. The first front arc block 603 and the first rear arc block 604 are respectively fixedly connected to the front side and the rear side of the positioning shaft 5 through a first connecting column 606. The second outer support driving assembly 7 includes a second outer circular ring block and a second inner circular ring block 707. The second outer circular ring block is formed by splicing a second upper arc block 701, a second lower arc block 702, a second front arc block 703, and a second rear arc block 704. The second outer circular ring block is coaxially arranged with the first outer circular ring block. The inner diameter and outer diameter of the second outer circular ring block are equal to the inner diameter and outer diameter of the first outer circular ring block. The second inner circular ring block 707 is coaxially arranged in the second outer circular ring block and the inner diameter of the second inner circular ring block 707 is larger than the outer diameter of the tubular workpiece 11 to be rolled. The second upper arc block 701, The second lower arc block 702 is respectively fixedly connected to the top and bottom of the outer circumferential surface of the second inner circular ring block 707 through a second hydraulic column 705, and the axial directions of the two second hydraulic columns 705 are arranged in the up-down direction. The second front arc block 703 and the second rear arc block 704 are respectively fixedly connected to the front side and the rear side of the outer circumferential surface of the second inner circular ring block 707 through a second connecting column 706, and the second front arc block 703 and the second rear arc block 704 are respectively fixedly connected to the first front arc block 603 and the first rear arc block 604 through a fixing column. The inner support driving assembly 8 includes a third upper arc block 801, a third lower arc block 802, and a third inner circular ring block 803. The third upper arc block 801 and the third lower arc block 802 are the upper and lower parts of the same circular ring block. The third upper arc block 801 and the third lower arc block 802 are symmetrically arranged on the radial outer side of the third inner circular ring block 803. The third upper arc block 801 and the third lower arc block 802 are respectively fixedly connected to the top and bottom of the outer circumferential surface of the third inner circular ring block 803 through a third hydraulic column 804. The axial directions of the two third hydraulic columns 804 are arranged up and down. The third inner circular ring block 803 is coaxially sleeved and fixed to the outside of the positioning shaft 5 and is arranged close to the right side of the first outer support driving assembly 6. The outer rolling assembly includes an upper outer strip rolling block 901 and a lower outer strip rolling block 902. The length directions of the upper outer strip rolling block 901 and the lower outer strip rolling block 902 are arranged along the left-right direction. The left and right ends of the upper outer strip rolling block 901 are respectively fixedly connected to the right end face of the first upper arc block 601 and the left end face of the second upper arc block 701. The left and right ends of the lower outer strip rolling block 902 are respectively fixedly connected to the right end face of the first lower arc block 602 and the left end face of the second lower arc block 702. The bottom of the upper outer strip rolling block 901 and the top of the lower outer strip rolling block 902 are both rotatably mounted with a plurality of outer rolling balls 903 for rolling the outer circumferential surface of the tubular workpiece 11. The inner rolling assembly includes an upper inner strip rolling block 101 and a lower inner strip rolling block 102. The length directions of the upper inner strip rolling block 101 and the lower inner strip rolling block 102 are arranged along the left-right direction. The top of the upper inner strip rolling block 101 and the bottom of the lower inner strip rolling block 102 are both rollingly installed with multiple inner rolling balls 103 for rolling the inner circumferential surface of the tube workpiece. The upper inner strip rolling block 101 is fixed to the top of the third upper arc block 801, and the lower inner strip rolling block 102 is fixed to the bottom of the third lower arc block 802.

[0024] Principle description: The processing device drives the outer rolling assembly to move up and down through the first outer support driving assembly 6 and the second outer support driving assembly 7, and drives the inner rolling assembly to move up and down through the inner support driving assembly 8. Specifically, the first hydraulic column 605, the second hydraulic column 705, and the third hydraulic column 804 are driven to extend and retract according to the wall thickness and inner diameter of the tubular workpiece 11, so that the first upper arc block 601, the first lower arc block 602, the second upper arc block 701, the second lower arc block 702, the third upper arc block 801, and the third lower arc block 802 move up and down, thereby driving the inner rolling assembly and the outer rolling assembly to move up and down for adjustment. After adjustment, the inner and outer cylindrical surfaces of the tubular workpiece 11 are matched with the rotation of the tubular workpiece 11 to realize the counter-position rolling processing. When in use, the length of the inner rolling assembly and the outer rolling assembly shall be determined according to the length of the tubular workpiece 11 to be processed.

[0025] Furthermore, the oil ports of the two first hydraulic columns 605 are both located on the left side of the first hydraulic column 605, the oil ports of the two second hydraulic columns 705 are both located on the right side of the second hydraulic column 705, and the oil ports of the two third hydraulic columns 804 are both located on the left side of the third hydraulic column 804. The oil port positions are standardized, which facilitates the layout of hydraulic pipelines.

[0026] In specific implementation, the first outer support drive assembly 6 also includes a first inner ring block 607, which is coaxially arranged in the first outer ring block, and the first inner ring block 607 is sleeved on the outside of the positioning shaft 5. One of the first hydraulic columns 605 is located between the first upper arc block 601 and the top of the outer circumferential surface of the first inner ring block 607, and the other first hydraulic column 605 is located between the first lower arc block 602 and the bottom of the outer circumferential surface of the first inner ring block 607. One of the first connecting columns 606 is located between the first front arc block 603 and the front side of the outer circumferential surface of the first inner ring block 607, and the other first connecting column 606 is located between the first rear arc block 604 and the rear side of the outer circumferential surface of the first inner ring block 607. The left end face of the first inner ring block 607 is provided with two axially arranged through holes 608 that are respectively connected to the oil inlets of the two third hydraulic columns 804. When in use, the two hydraulic pipelines that need to be connected to the two third hydraulic columns 804 are passed through the two through holes 608 respectively and then connected to the oil inlets of the two third hydraulic columns 804 respectively, so that the hydraulic pipeline wiring of the entire device is neat.

[0027] In specific implementation, a first upper connecting ear is extended outward from the outer edge of the right end face of the first upper arc block 601, and a vertically arranged upper connecting hole is provided on the first upper connecting ear. A first upper connecting notch is provided on the outer edge of the left end face of the upper outer strip rolling block 901, which is matched with the first upper connecting ear. A first upper connecting notch is provided with a first upper threaded hole matched with the first upper connecting hole. The first upper connecting bolt passes through the first upper connecting hole and is tightened in the first upper threaded hole, thereby realizing a fixed connection between the right end face of the first upper arc block 601 and the left end portion of the upper outer strip rolling block 901. This structure is convenient for installation and disassembly. Unloading; a first lower connecting ear extends outward from the outer edge of the right end face of the first lower arc block 602, and a first lower connecting ear is provided with a vertically arranged first lower connecting hole, and the outer edge of the left end face of the lower outer strip-shaped rolling block 902 is provided with a first lower connecting notch matched with the first lower connecting ear, and the first lower connecting notch is provided with a first lower threaded hole matched with the first lower connecting hole, and the first lower connecting bolt passes through the first lower connecting hole and is tightened to the first lower threaded hole, thereby realizing a fixed connection between the right end face of the first lower arc block 602 and the left end portion of the lower outer strip-shaped rolling block 902, and this structure is convenient for installation and disassembly.

[0028] In specific implementation, a second upper connecting ear extends outward from the outer edge of the left end face of the second upper arc block 701, and a second upper connecting ear is provided on the second upper connecting hole arranged vertically, and a second upper connecting notch is provided on the outer edge of the right end face of the upper outer strip rolling block 901, which is matched with the second upper connecting ear, and a second upper connecting notch is provided with a second upper threaded hole matched with the second upper connecting hole, and the second upper connecting bolt passes through the second upper connecting hole and is tightened in the second upper threaded hole, thereby realizing a fixed connection between the left end face of the second upper arc block 701 and the right end portion of the upper outer strip rolling block 901, and this structure is convenient for installation and Disassembly; a second lower connecting ear extends outward from the outer edge of the left end face of the second lower arc block 702, and a vertically arranged second lower connecting ear is provided on the second lower connecting ear, and a second lower connecting notch matched with the second lower connecting ear is provided on the outer edge of the right end face of the lower outer strip-shaped rolling block 902, and a second lower connecting notch matched with the second lower connecting ear is provided on the second lower connecting notch, and a second lower threaded hole matched with the second lower connecting hole is provided on the second lower connecting notch, and the second lower connecting bolt passes through the second lower connecting hole and is tightened to the second lower threaded hole, thereby realizing a fixed connection between the left end face of the second lower arc block 702 and the right end portion of the lower outer strip-shaped rolling block 902, and this structure is convenient for installation and disassembly.

[0029] In specific implementation, the left and right ends of the top of the third upper arc block 801 are both extended upward with third upper connecting ears, the left and right ends of the bottom surface of the upper inner strip-shaped rolling block 101 are both provided with third upper connecting notches matched with the third upper connecting ears, the two third upper connecting ears are both provided with vertically arranged third upper threaded holes 805, the two third upper connecting notches are both provided with third upper connecting holes matched with the corresponding third upper threaded holes 805, the two third upper connecting bolts are both passed through the corresponding third upper connecting holes and tightened to the corresponding third upper threaded holes 805, so that the upper inner strip-shaped rolling block 101 is fixed to the top of the third upper arc block 801, and this structure is convenient for installation and disassembly; In specific implementation, third lower connecting ears are extended downward from the left and right ends of the bottom of the third lower arc block 802, and the left and right ends of the top surface of the lower inner strip-shaped rolling block 102 are provided with third lower connecting notches matched with the third lower connecting ears, and the third lower connecting ears are provided with vertically arranged third lower threaded holes 806, and the third lower connecting notches are provided with third lower connecting holes matched with the third lower threaded holes 806, and two third lower connecting bolts are passed through the corresponding third lower connecting holes and tightened to the corresponding third lower threaded holes 806, so that the lower inner strip-shaped rolling block 102 is fixed to the bottom of the third lower arc block 802. This structure is convenient for installation and disassembly.

[0030] In specific implementation, there are four external rolling balls 903 rollingly installed at the bottom of the upper outer strip rolling block 901 and the top of the lower outer strip rolling block 902, and the four external rolling balls 903 are evenly arranged along the length direction of the upper outer strip rolling block 901 or the lower outer strip rolling block 902, so that the structure is concretized and standardized.

[0031] In specific implementation, there are four inner rolling balls 103 rollingly installed at the top of the upper inner strip rolling block 101 and the bottom of the lower inner strip rolling block 102, and the four inner rolling balls 103 are evenly arranged along the length direction of the upper inner strip rolling block 101 or the lower inner strip rolling block 102, so that the structure is concretized and standardized.

[0032] The above is only a specific implementation of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A positioning rolling processing device for a tubular workpiece, characterized in that: It comprises a horizontal dual-axis machining center, a positioning axis (5), a first outer support drive assembly (6), a second outer support drive assembly (7), an outer rolling assembly, an inner support drive assembly (8), and an inner rolling assembly; The horizontal double-axis machining center comprises a movable spindle (1) capable of realizing linear feeding in the left-right direction, a rotating spindle (2), a tool holder (3), and a three-jaw chuck (4); the movable spindle (1) and the rotating spindle (2) are distributed left and right and arranged coaxially; the tool holder (3) is coaxially fixed to the right side of the movable spindle (1), and the three-jaw chuck (4) is fixed to the left side of the rotating spindle (2); The positioning shaft (5) is coaxially fixed to the right side of the tool handle (3); The first outer support driving assembly (6) comprises a first outer circular ring block, which is formed by splicing a first upper arc block (601), a first lower arc block (602), a first front arc block (603), and a first rear arc block (604) in separate parts. The first outer circular ring block is coaxially sleeved on the positioning shaft (5) and arranged close to the right side of the tool handle (3). The first upper arc block (601) and the first lower arc block (602) are respectively fixedly connected to the top and bottom of the positioning shaft (5) via a first hydraulic column (605). The axial directions of the two first hydraulic columns (605) are arranged in the up-down direction. The first front arc block (603) and the first rear arc block (604) are respectively fixedly connected to the front side and the rear side of the positioning shaft (5) via a first connecting column (606). The second outer support driving assembly (7) comprises a second outer circular ring block and a second inner circular ring block (707); the second outer circular ring block is formed by splicing a second upper arc block (701), a second lower arc block (702), a second front arc block (703), and a second rear arc block (704); the second outer circular ring block is coaxially arranged with the first outer circular ring block; the inner diameter and outer diameter of the second outer circular ring block are equal to the inner diameter and outer diameter of the first outer circular ring block; the second inner circular ring block (707) is coaxially arranged inside the second outer circular ring block; and the inner diameter of the second inner circular ring block (707) is larger than the outer diameter of the tubular workpiece (11) to be rolled; the second upper arc block (701), the second The lower arc blocks (702) are respectively fixedly connected to the top and bottom of the outer circumferential surface of the second inner circular ring block (707) via a second hydraulic column (705); the axial directions of the two second hydraulic columns (705) are arranged in the up-down direction; the second front arc block (703) and the second rear arc block (704) are respectively fixedly connected to the front side and the rear side of the outer circumferential surface of the second inner circular ring block (707) via a second connecting column (706); the second front arc block (703) and the second rear arc block (704) are respectively fixedly connected to the first front arc block (603) and the first rear arc block (604) via a fixing column; The inner support driving assembly (8) comprises a third upper arc block (801), a third lower arc block (802), and a third inner circular ring block (803); the third upper arc block (801) and the third lower arc block (802) are the upper and lower parts of the same circular ring block; the third upper arc block (801) and the third lower arc block (802) are symmetrically arranged radially outside the third inner circular ring block (803); the third upper arc block (801) and the third lower arc block (802) are respectively fixedly connected to the top and bottom of the outer circumferential surface of the third inner circular ring block (803) through a third hydraulic column (804); the two third hydraulic columns (804) are axially arranged up and down; the third inner circular ring block (803) is coaxially sleeved and fixed outside the positioning shaft (5) and is arranged close to the right side of the first outer support driving assembly (6); The outer rolling assembly comprises an upper outer strip rolling block (901) and a lower outer strip rolling block (902); the length directions of the upper outer strip rolling block (901) and the lower outer strip rolling block (902) are arranged along the left-right direction; the left and right ends of the upper outer strip rolling block (901) are respectively fixedly connected to the right end face of the first upper arc block (601) and the left end face of the second upper arc block (701); the left and right ends of the lower outer strip rolling block (902) are respectively fixedly connected to the right end face of the first lower arc block (602) and the left end face of the second lower arc block (702); and a plurality of outer rolling balls (903) for rolling the outer circumferential surface of a tubular workpiece are both rotatably mounted on the bottom of the upper outer strip rolling block (901) and the top of the lower outer strip rolling block (902); The inner rolling assembly comprises an upper inner strip rolling block (101) and a lower inner strip rolling block (102); the length directions of the upper inner strip rolling block (101) and the lower inner strip rolling block (102) are arranged in the left-right direction; a plurality of inner rolling balls (103) for rolling the inner circumferential surface of a tube workpiece are rotatably mounted on the top of the upper inner strip rolling block (101) and the bottom of the lower inner strip rolling block (102); the upper inner strip rolling block (101) is fixed to the top of the third upper arc block (801), and the lower inner strip rolling block (102) is fixed to the bottom of the third lower arc block (802).

2. The device for rolling a tubular workpiece according to claim 1, characterized in that: The oil ports of the two first hydraulic columns (605) are both located on the left side of the first hydraulic column (605), the oil ports of the two second hydraulic columns (705) are both located on the right side of the second hydraulic column (705), and the oil ports of the two third hydraulic columns (804) are both located on the left side of the third hydraulic column (804).

3. The device for rolling a tubular workpiece according to claim 1, characterized in that: The first outer support drive assembly (6) also includes a first inner ring block (607), which is coaxially arranged inside the first outer ring block. The first inner ring block (607) is sleeved on the outside of the positioning shaft (5), one of the first hydraulic columns (605) is located between the first upper arc block (601) and the top of the outer circumferential surface of the first inner ring block (607), and the other first hydraulic column (605) is located between the first lower arc block (602) and the outer circumferential surface of the first inner ring block (607). The first connecting column (606) is located between the bottom of the circumferential surface, wherein one of the first connecting columns (606) is located between the front side of the outer circumferential surface of the first front arc block (603) and the first inner ring block (607), and the other first connecting column (606) is located between the rear side of the outer circumferential surface of the first rear arc block (604) and the first inner ring block (607). The left end surface of the first inner ring block (607) is provided with a plurality of through holes (608) which are axially arranged and respectively communicated with the oil ports of the two third hydraulic columns (804).

4. The device for rolling a tubular workpiece according to claim 3, characterized in that: A first upper connecting ear is extended outwardly from the outer edge of the right end face of the first upper arc block (601), and a vertically arranged upper connecting hole is provided on the first upper connecting ear; a first upper connecting notch is provided on the outer edge of the left end face of the upper outer strip-shaped rolling block (901) and matched with the first upper connecting ear; a first upper connecting notch is provided on the first upper connecting notch and matched with the first upper connecting hole; a first upper connecting bolt is tightened into the first upper threaded hole after passing through the first upper connecting hole; a first lower connecting ear is extended outwardly from the outer edge of the right end face of the first lower arc block (602), and a vertically arranged first lower connecting ear is provided on the first lower connecting ear; a first lower connecting notch is provided on the outer edge of the left end face of the lower outer strip-shaped rolling block (902) and matched with the first lower connecting ear; a first lower connecting notch is provided on the first lower connecting notch and matched with the first lower connecting hole; a first lower connecting bolt is tightened into the first lower threaded hole after passing through the first lower connecting hole.

5. The device for rolling a tubular workpiece according to claim 4, characterized in that: A second upper connecting ear is extended outwardly from the outer edge of the left end face of the second upper arc block (701), and a second upper connecting ear is provided with a vertically arranged second upper connecting hole. A second upper connecting notch is provided on the outer edge of the right end face of the upper outer strip-shaped rolling block (901) and matched with the second upper connecting ear. A second upper connecting notch is provided on the second upper connecting notch and matched with the second upper connecting hole. The second upper connecting bolt is tightened into the second upper threaded hole after passing through the second upper connecting hole. A second lower connecting ear is extended outwardly from the outer edge of the left end face of the second lower arc block (702), and a second lower connecting ear is provided with a vertically arranged second lower connecting hole. A second lower connecting notch is provided on the outer edge of the right end face of the lower outer strip-shaped rolling block (902) and matched with the second lower connecting ear. A second lower connecting notch is provided on the second lower connecting notch and matched with the second lower connecting hole. The second lower connecting bolt is tightened into the second lower threaded hole after passing through the second lower connecting hole.

6. The device for rolling a tubular workpiece according to claim 5, characterized in that: The left and right ends of the top of the third upper arc block (801) are both provided with third upper connecting ears extending upwards, the left and right ends of the bottom surface of the upper inner strip-shaped rolling block (101) are both provided with third upper connecting notches matching the third upper connecting ears, the two third upper connecting ears are both provided with vertically arranged third upper threaded holes (805), the two third upper connecting notches are both provided with third upper connecting holes matching the corresponding third upper threaded holes (805), and the two third upper connecting bolts are both passed through the corresponding third upper connecting holes and then tightened in the corresponding third upper threaded holes (805).

7. The device for rolling a tubular workpiece according to claim 6, characterized in that: The left and right ends of the bottom of the third lower arc block (802) both extend downwardly with third lower connecting ears, the left and right ends of the top surface of the lower inner strip-shaped rolling block (102) both have third lower connecting notches matched with the third lower connecting ears, the third lower connecting ears are each provided with a vertically arranged third lower threaded hole (806), the third lower connecting notch is provided with a third lower connecting hole matched with the third lower threaded hole (806), and two third lower connecting bolts are both passed through the corresponding third lower connecting holes and tightened in the corresponding third lower threaded hole (806).

8. The device for rolling a tubular workpiece according to claim 7, characterized in that: There are four external rolling balls (903) that are rollingly mounted at the bottom of the upper external strip-shaped rolling block (901) and the top of the lower external strip-shaped rolling block (902), and the four external rolling balls (903) are evenly arranged along the length direction of the upper external strip-shaped rolling block (901) or the lower external strip-shaped rolling block (902).

9. The device for rolling a tubular workpiece according to claim 8, characterized in that: There are four inner rolling balls (103) rollingly mounted on the top of the upper inner strip rolling block (101) and the bottom of the lower inner strip rolling block (102), and the four inner rolling balls (103) are evenly arranged along the length direction of the upper inner strip rolling block (101) or the lower inner strip rolling block (102).

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