CN110893445A

CN110893445A - Flaring device for aluminum alloy pipe

Info

Publication number: CN110893445A
Application number: CN201911339734.1A
Authority: CN
Inventors: 李秀坤; 刘围芹; 李兴康; 战丽丽; 刘璐; 刘阵; 全列宁
Original assignee: JIANGSU JINXIN ELECTRICAL EQUIPMENT CO Ltd
Current assignee: JIANGSU JINXIN ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-03-20

Abstract

An aluminum alloy pipe flaring device. The invention relates to the technical field of aluminum pipe flaring, in particular to an improvement of an aluminum alloy pipe flaring device. The flaring device for the aluminum alloy pipe is simple in structure and easy to operate, and improves the automation degree and the product precision. The invention relates to an aluminum alloy pipe flaring device, which adopts a spinning flaring mode to replace the prior flaring mode of a hydraulic die, improves the automation degree of equipment and the product precision, and can control the wall thickness of a pipe in a flaring area by controlling the moving tracks of a spinning wheel in the X-axis and Y-axis directions, namely controlling the material flowing direction, thereby realizing the equal wall thickness or wall thickness increase of a product, meeting the requirements of the strength performance and the arcing performance of a shell and improving the product precision. In addition, the flaring fixture is a two-half-circle mold, the encircling is a whole circle all the time, the flaring sections and the non-flaring sections of the two half-circle mold are integrated, the concentricity of the flaring fixture is high, the concentricity of the two ends of the pipe after flaring is ensured, and the quality of products is further ensured.

Description

Flaring device for aluminum alloy pipe

Technical Field

The invention relates to the technical field of aluminum pipe flaring, in particular to an improvement of an aluminum alloy pipe flaring device.

Background

In order to reduce the diameter of a GIS/GIL shell for high-voltage power transmission and distribution and reduce the usage amount of sulfur hexafluoride gas, thereby saving the cost and reducing the risk of environmental pollution. The shell is made of a small-caliber aluminum alloy pipe, and in order to ensure the internal insulation performance and the arcing performance of the shell, equal-wall-thickness flaring work is required to be carried out on two ends of the small-caliber aluminum alloy pipe. The two ends of the pipe are flared by a hydraulic die, the wall thickness of the pipe at the flaring part is reduced by about 30%, and the concentricity of the flaring parts at the two ends is 2mm at most.

The national intellectual property office discloses a Chinese patent invention in 2019, 3 and 26, with the patent name: an aluminum sheath flaring device, which is disclosed as follows: CN208643888U, which is operated by a hydraulic press, does not need manpower in the operation process, and eliminates potential safety hazards; the center line of the aluminum pipe clamping and fixing device and the center line of the vertebral body are designed on the same line, force is uniformly applied in the operation process, and the accuracy of the result is improved.

However, the above technical scheme has the defects that the wall thickness reduction amount of the flaring section is large, and the requirements of the strength performance and the arcing performance of the shell cannot be met; the concentricity error of the two ends of the pipe after flaring is large, great difficulty is caused to the assembly of the subsequent internal components of the shell, the rejection rate of products is high, and the like.

Disclosure of Invention

Aiming at the original technical defects, the invention provides the flaring device for the aluminum alloy pipe, which has a simple structure and is easy to operate, and the automation degree and the product precision are improved.

The technical scheme of the invention is as follows:

the pipe clamping device comprises a base, a main shaft driving mechanism, an X-axis driving mechanism, a Y-axis driving mechanism, a spinning wheel and at least one pipe clamping and fixing device; the spindle driving mechanism comprises a spindle box, a motor and a spindle, and the spindle is horizontally arranged on the spindle box and is connected with the output end of the motor; the X-axis driving mechanism comprises an X-axis motor, an X-axis ball screw and an X-axis driving box, the X-axis ball screw is connected with the output end of the X-axis motor, and the X-axis ball screw is arranged in the X-axis driving box; the Y-axis driving mechanism comprises a Y-axis driving box, a Y-axis ball screw and a Y-axis motor, the Y-axis ball screw is connected with the output end of the Y-axis motor, and the Y-axis ball screw is arranged in the Y-axis driving box; the Y-axis driving box is arranged on the base, a Y-axis guide rail is arranged at the top of the Y-axis driving box, the Y-axis guide rail is connected with a Y-axis sliding seat in a sliding mode, the Y-axis ball screw is in transmission connection with the Y-axis sliding seat, and the Y-axis motor drives the Y-axis sliding seat to move in the Y-axis direction; the Y-axis sliding seat is respectively provided with the spindle box and the motor, the output end of the spindle is vertically connected with the X-axis driving box, an X-axis guide rail is arranged in the Y-axis direction of the X-axis driving box, an X-axis sliding clamp is arranged on the X-axis guide rail in a sliding manner, the X-axis ball screw is in transmission connection with the X-axis sliding clamp, and the X-axis motor drives the X-axis sliding clamp to move in the X-axis direction; the X-axis sliding clamp is provided with a spinning wheel seat, the spinning wheel seat is provided with a spinning wheel, and the pipe clamping and fixing device and the base are arranged on the same horizontal line.

The pipe clamping and fixing device comprises a support frame and a flaring clamp, the flaring clamp comprises a fixed semicircular mould and a movable semicircular mould, and an inner cavity of the flaring clamp forms a whole circle after the flaring clamp surrounds the fixed semicircular mould, the fixed semicircular mould is fixedly installed at one end of the support frame, and the movable semicircular mould is movably connected at the other end of the support frame through a power pushing device.

The power pushing device comprises a fixed seat, a hydraulic cylinder arranged on the fixed seat, a linear guide rail arranged on the fixed seat, a connecting plate and a hydraulic rod, wherein the connecting plate is arranged on the linear guide rail in a sliding mode, the connecting plate is connected with the back face of the movable semicircular die, the inner end of the hydraulic rod is connected with the hydraulic cylinder, and the outer end of the hydraulic rod is connected with the connecting plate.

The fixed semicircular die and the movable semicircular die both comprise a non-flaring section and a flaring section, and the non-flaring section and the flaring section are connected into a whole.

The invention relates to an aluminum alloy pipe flaring device, which adopts a spinning flaring mode to replace the original hydraulic die flaring mode, and improves the automation degree of equipment and the product precision; the X-axis driving mechanism is used for driving the spinning wheel to move in the X-axis direction to find the center of a pipe needing to be flared, the center is used as a reference point, then the X-axis driving mechanism and the Y-axis driving mechanism continuously move in the X-axis direction and the Y-axis direction simultaneously to achieve interpolation spinning flaring, the moving track of the spinning wheel in the X-axis direction and the Y-axis direction, namely the material flowing direction, is controlled to control the wall thickness of the pipe in a flaring area, the equal wall thickness or wall thickness increase of a product is achieved, the requirements of the strength performance and the arcing performance of the shell are met, and the precision of the product is improved. In addition, the flaring fixture is a two-half-circle mold, the encircling is a whole circle all the time, the flaring sections and the non-flaring sections of the two half-circle mold are integrated, the concentricity of the flaring fixture is high, the concentricity of the two ends of the pipe after flaring is ensured, and the quality of products is further ensured.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a schematic view of the power propulsion apparatus of the present invention;

FIG. 5 is a cross-sectional view of a flaring fixture of the present invention;

in the figure: 1-a base; 2-spinning wheel; 3-a spindle drive mechanism; 4-X axis drive mechanism; 5-Y axis drive mechanism; 6-a pipe clamping and fixing mechanism; 7-a pipe;

301-main spindle box; 302-a motor; 303-a main shaft;

401-X axis motor; 402-X axis ball screw; 403-X axis drive box; 404-X axis guide rails; 405-X axis slide clamp; 406-a spinning wheel seat;

501-Y axis motor; 502-Y axis ball screw; 503-Y axis drive box; 504-Y-axis guide rails; 505-Y axis slide mount;

601-a support frame; 602-flaring die; 603-a powered propulsion means; 604-a fixation device;

6021-fixing the semicircular mold; 6022-moving the semicircular mold; 6023-flared section; 6024-non-flaring segments.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The invention is further illustrated with reference to the following examples, which are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 3, an aluminum alloy tube flaring device in an embodiment includes a base 1, a main shaft driving mechanism 3, an X-axis driving mechanism 4, a Y-axis driving mechanism 5, a spinning wheel 2, and at least one tube clamping and fixing device 6; the spindle driving mechanism 3 comprises a spindle box 301, a motor 302 and a spindle 303, wherein the spindle 303 is horizontally arranged on the spindle box 301 and is connected with the output end of the motor 302; the X-axis driving mechanism 4 comprises an X-axis motor 401, an X-axis ball screw 402 and an X-axis driving box 403, wherein the X-axis ball screw 402 is connected with the output end of the X-axis motor 401, and the X-axis ball screw 402 is arranged in the X-axis driving box 403; the Y-axis driving mechanism 5 comprises a Y-axis driving box 503, a Y-axis ball screw 502 and a Y-axis motor 501, the Y-axis ball screw 502 is connected with the output end of the Y-axis motor 501, and the Y-axis ball screw 502 is arranged in the Y-axis driving box 503; the base 1 is provided with the Y-axis driving box 503, a Y-axis guide rail 504 is arranged at the top of the Y-axis driving box 503, the Y-axis guide rail 504 is connected with a Y-axis sliding seat 505 in a sliding manner, the Y-axis ball screw 502 is connected with the Y-axis sliding seat 505 in a transmission manner, and the Y-axis motor 501 drives the Y-axis sliding seat 505 to move in the Y-axis direction; the main spindle box 301 and the motor 302 are respectively arranged on the Y-axis sliding seat 505, the output end of the main spindle 303 is vertically connected with the X-axis driving box 403, an X-axis guide rail 404 is arranged in the Y-axis direction of the X-axis driving box 403, an X-axis sliding clamp 405 is arranged on the X-axis guide rail 404 in a sliding manner, the X-axis ball screw 402 is in transmission connection with the X-axis sliding clamp 405, and the X-axis motor 401 drives the X-axis sliding clamp 405 to move in the X-axis direction; the X-axis sliding clamp 405 is provided with a spinning wheel seat 406, the spinning wheel seat 406 is provided with a spinning wheel 2, and the pipe clamping and fixing device 6 and the base 1 are arranged on the same horizontal line.

The pipe clamping and fixing device 6 is used for fixing the pipe 7, and the center line of the pipe 7 on the pipe clamping and fixing device 6 is at the same height as the center line of the spinning wheel 2.

The aluminum alloy pipe flaring device comprises 1 main shaft and 2 feed shafts. The device is when the operation, take the center that the spinning wheel 2 found the tubular product 7 that needs the reaming through X axle actuating mechanism 4 drive X axle slip anchor clamps 405, use this center as the benchmark, during spinning, X axle actuating mechanism 4 drive X axle slip anchor clamps 405 drive spinning wheel 2 at the incessant operation of X axle direction, Y axle actuating mechanism 5 drive headstock 3 drives spinning wheel 2 at Y axle direction back-and-forth movement, realize interpolation spinning, through control material flow direction control flaring zone tubular product wall thickness, and then can guarantee the equal wall thickness or the wall thickness that increases of tubular product, satisfy shell strength property and arcing performance requirement, above-mentioned actuating mechanism all is connected with control system, give the instruction through control system and process, product accuracy has been improved.

Referring to fig. 1, the tube clamping and fixing device 6 includes a support frame 601 and a flaring fixture 602, the flaring fixture 602 includes a fixed semicircular mold 6021 and a movable semicircular mold 6022, and an inner cavity of the fixed semicircular mold 6021 forms a complete circle after being surrounded, the fixed semicircular mold 6021 is fixedly installed at one end of the support frame 601, and the movable semicircular mold 6022 is movably connected to the other end of the support frame 601 through a power pushing device 603.

Referring to fig. 4, the power pushing apparatus 603 includes a fixing base 6031, a hydraulic cylinder 6032 installed on the fixing base 6031, a linear guide 6033 installed on the fixing base 6031, a connecting plate 6034, and a hydraulic rod 6035, wherein the connecting plate 6034 is slidably disposed on the linear guide 6033, the connecting plate 6034 is connected to the back of the movable semicircular mold 6022, an inner end of the hydraulic rod 6035 is connected to the hydraulic cylinder 6032, and an outer end of the hydraulic rod 6035 is connected to the connecting plate 6034.

The pipe 7 to be flared is clamped on the pipe clamping and fixing mechanism 6, and the movable semicircular die 6022 is pushed by the hydraulic cylinder 6032 and guided by the linear guide rail 6033. The hydraulic cylinder 6032 is supplied with oil all the time in the process of spinning, so that the two half dies are always in a full circle after being assembled, and the surrounded inner diameters of the fixed semicircular die 6021 and the movable semicircular die 6022 are matched with the outer diameter of the pipe 7.

In addition, as for the fixing and installation measure of the fixed semicircular mold 6021, reference may be made to the fixing device 604 shown in fig. 1, where the fixing device 604 includes a fixing seat 6031 and a connecting plate 6034, the back surface of the fixed semicircular mold 6021 is connected to the connecting plate 6034, and the connecting plate 6034 is connected to the fixing seat 6031 through a connecting rod, so that the fixed semicircular mold 6021 is fixedly installed on one end of the supporting frame 601. The fixed semicircular die can also be fixed and installed by conventional means in the technical field, and is not limited to the embodiment.

Referring to fig. 5, the fixed and movable

semicircular dies

6021 and 6022 each include a non-flared section 6023 and a flared section 6024, the non-flared section 6023 and the flared section 6024 being integrally connected.

The flaring fixture 602 is manufactured by one-time clamping and forming by a numerical control lathe, and is cut by using a molybdenum wire with the diameter of 0.1-0.12mm cut by slow wire cutting, so that the roundness of the base material is not damaged, and the concentricity of the non-flaring section 6023 and the flaring section 6024 is also ensured. Meanwhile, the concentricity of the flaring at the two ends of the pipe cannot be guaranteed, convenience is brought to the assembly and the manufacture of subsequent internal components of the shell, and the rejection rate of products is reduced.

The aluminum alloy pipe flaring device comprises the following working steps:

firstly, a pipe 7 to be flared is arranged on a pipe clamping and fixing mechanism 6, a flaring clamp 602 clamps the pipe 7 to be flared and fixes the pipe on a support frame 601, and a spinning wheel 2 is in an initial state; the X-axis driving mechanism 4 works to drive the spinning wheel 2 to find the center of the pipe 7 to be flared, and the center is taken as a datum point; during spinning, the X-axis driving mechanism 4 continuously operates, meanwhile, the Y-axis driving mechanism 5 pushes the spindle box 3 to enable the spinning wheel 2 to move in the Y-axis direction to be close to the portion, needing to be flared, of the pipe to be flared, and then the spinning wheel 2 conducts spinning flaring under the driving of the X-axis driving mechanism 4 and the Y-axis driving mechanism 5 until the spinning flaring is achieved to the qualified size. After the pipe needing flaring is finished, the Y-axis driving mechanism 5 stops operating, the Y-axis driving mechanism 5 drives the spinning wheel 2 to move in the Y-axis direction and far away from the flaring part of the pipe 7 to be flared, meanwhile, the main shaft driving mechanism 3 stops rotating, the spinning wheel returns to the initial position, and the pipe 7 which is spun and flared is taken down.

According to the flaring device for the aluminum alloy pipe, disclosed by the invention, the control system controls each driving mechanism, so that the tracks of the spinning wheel 2 in the X-axis and Y-axis directions are accurately controlled, the thickness of the pipe at the flaring part is equal to or larger than the thickness of the original pipe, and the service performance and the product precision of a product are further ensured.

The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. An aluminum alloy pipe flaring device is characterized by comprising a base, a main shaft driving mechanism, an X-axis driving mechanism, a Y-axis driving mechanism, a spinning wheel and at least one pipe clamping and fixing device;

the spindle driving mechanism comprises a spindle box, a motor and a spindle, wherein the spindle is horizontally arranged on the spindle box and is connected with the output end of the motor; the X-axis driving mechanism comprises an X-axis motor, an X-axis ball screw and an X-axis driving box, the X-axis ball screw is connected with the output end of the X-axis motor, and the X-axis ball screw is arranged in the X-axis driving box;

the Y-axis driving mechanism comprises a Y-axis driving box, a Y-axis ball screw and a Y-axis motor, the Y-axis ball screw is connected with the output end of the Y-axis motor, and the Y-axis ball screw is arranged in the Y-axis driving box;

the Y-axis driving box is arranged on the base, a Y-axis guide rail is arranged at the top of the Y-axis driving box, the Y-axis guide rail is connected with a Y-axis sliding seat in a sliding mode, the Y-axis ball screw is in transmission connection with the Y-axis sliding seat, and the Y-axis motor drives the Y-axis sliding seat to move in the Y-axis direction; the Y-axis sliding seat is respectively provided with the spindle box and the motor, the output end of the spindle is vertically connected with the X-axis driving box, an X-axis guide rail is arranged in the Y-axis direction of the X-axis driving box, an X-axis sliding clamp is arranged on the X-axis guide rail in a sliding manner, the X-axis ball screw is in transmission connection with the X-axis sliding clamp, and the X-axis motor drives the X-axis sliding clamp to move in the X-axis direction; the X-axis sliding clamp is provided with a spinning wheel seat, the spinning wheel seat is provided with a spinning wheel, and the pipe clamping and fixing device and the base are arranged on the same horizontal line.

2. The aluminum alloy pipe flaring device of claim 1, wherein the pipe clamping and fixing device comprises a support frame and a flaring clamp, the flaring clamp comprises a fixed semicircular mould and a movable semicircular mould, an inner cavity of the flaring clamp forms a whole circle after the flaring clamp surrounds the fixed semicircular mould and the movable semicircular mould, the fixed semicircular mould is fixedly arranged at one end of the support frame, and the movable semicircular mould is movably connected at the other end of the support frame through a power pushing device.

3. The aluminum alloy pipe flaring device of claim 2, wherein the power pushing device comprises a fixed seat, a hydraulic cylinder installed on the fixed seat, a linear guide rail installed on the fixed seat, a connecting plate and a hydraulic rod, the connecting plate is slidably arranged on the linear guide rail, the connecting plate is connected with the back of the movable semicircular mold, the inner end of the hydraulic rod is connected with the hydraulic cylinder, and the outer end of the hydraulic rod is connected with the connecting plate.

4. The aluminum alloy pipe flaring device of claim 2, wherein said fixed semi-circular die and said movable semi-circular die each comprise a non-flaring segment and a flaring segment, and said non-flaring segment and flaring segment are integrally connected.