Anti-deformation flaring device for port of metal pipe fitting

Abstract

The utility model relates to the technical field of metal processing, and particularly discloses a metal pipe fitting port anti-deformation flaring device which comprises a base body, a mounting frame is fixedly arranged at the top of the base body, a driving assembly is arranged below the mounting frame, and the driving assembly is in driving connection with a second-stage diameter expanding head assembly. Inserting grooves are formed in the surface of the first-stage expanding head body at equal intervals, inserting blocks are arranged on the inclined face of an inner cavity of the second-stage expanding head body and located in the inserting grooves, the second-stage expanding head body is finally moved to the first-stage expanding head body, the inclined angles of the conical faces of the second-stage expanding head body and the first-stage expanding head body are the same, and the conical faces are coplanar, so that it is guaranteed that the inclined position of a pipe fitting flaring is flat; a sliding groove and an annular groove are formed in the surface of the connecting part, a sliding block is installed on the inner wall of the second-stage expanding head body and located in the annular groove or the sliding groove, and when the sliding block is located in the annular groove, the second-stage expanding head body is pushed to drive the first-stage expanding head body to conduct primary expanding, and the second-stage expanding head body is rotated to enable the sliding block to be aligned with the sliding groove.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a metal pipe port anti-deformation expanding device. Background Art

[0002] Metal pipe fittings refer to tubular components made of metal materials (such as steel, copper, aluminum, stainless steel, etc.) with specific geometric shapes and functions. They are used in pipeline systems or mechanical structures to achieve connection, diversion, diversion, diameter reduction, sealing, etc.

[0003] During the processing of metal pipes, in order to meet different application requirements, a flaring device is needed to expand the end diameter of the metal pipe to form a specific size. However, during the flaring process, large-diameter flaring will cause severe local deformation of the material, resulting in cracks, uneven wall thickness and other problems. Traditional segmented flaring requires replacing flaring heads of different diameters in sequence, which involves many steps and is complicated to operate. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an anti-deformation expanding device for metal pipe ports, which has the advantages of directly completing two-stage expansion from small to large diameters through an integrated operation, and solves the problem that large-diameter expansion will cause severe local deformation of the material, and the traditional segmented type needs to replace the expanding heads of different diameters in sequence, which has many steps and complicated operation.

[0005] The utility model discloses a metal pipe port deformation prevention expansion device, comprising a base, a mounting frame is fixedly provided on the top of the base, a driving assembly is provided below the mounting frame, the driving assembly is connected to a secondary expanding head assembly, the secondary expanding head assembly comprises a secondary expanding head body, the secondary expanding head body is fixedly connected to the driving assembly, both sides of the vertical section inner wall of the secondary expanding head body are fixedly provided with sliders, the inclined surface of the inner cavity of the secondary expanding head body is fixedly provided with four plug-ins, and one end of the four plug-ins extends to the outside of the secondary expanding head body, the secondary expanding head The inner cavity of the diameter head assembly is movably provided with a first-level expanding head assembly, and the first-level expanding head assembly includes a connecting part, which is movably provided in the inner cavity of the second-level expanding head body and the driving assembly, and both sides of the surface of the connecting part are provided with sliding grooves adapted to the slider, and the surface of the connecting part and one end of the sliding groove are provided with an annular groove, and one end of the connecting part is fixed with a first-level expanding head body, and the surface of the first-level expanding head body is provided with four slots adapted to the plug block at equal distances, and the top of the base is fixed with a forming cavity, and the top of the base is provided with a clamping assembly used in conjunction with the forming cavity.

[0006] The utility model discloses a device for preventing deformation and expanding of a metal pipe port, wherein the driving assembly includes two fixed columns, the tops of the two fixed columns are fixedly connected to the horizontal plate part of the mounting frame, the bottoms of the two fixed columns are fixedly connected to the mounting blocks, the bottoms of the mounting blocks are fixedly provided with a sliding ring, and the other end of the connecting part passes through the inner cavity of the sliding ring and the mounting block, both sides of the surface of the sliding ring are movably clamped with sliding blocks, the inner cavities of the two sliding blocks are fixedly provided with expanding cylinders, one end of the two expanding cylinders is fixedly provided with a connecting block, and one end of the two connecting blocks is fixedly connected to the surface of the secondary expanding head body.

[0007] The utility model provides a device for anti-deformation expansion of a metal pipe port, wherein a driving motor is fixedly provided on one side of the top of the mounting block, one end of the driving motor is rotatably connected to a rotating rod, one end of the rotating rod is rotatably connected to a driving gear, a toothed disc is meshed on the surface of the driving gear, and two expanding cylinders are fixedly provided in the inner cavity of the toothed disc.

[0008] The utility model provides a metal pipe port anti-deformation expansion device, wherein a connecting column is fixedly provided on the other side of the top of the mounting block, an auxiliary gear is movably provided on the top of the connecting column, and the auxiliary gear is meshed and connected with a gear disk.

[0009] The utility model provides a device for preventing deformation and expanding the port of a metal pipe fitting, wherein the clamping assembly includes two fixed blocks, the two fixed blocks are respectively fixed on both sides of the top of the base body, the inner cavities of the two fixed blocks are fixed with a clamping cylinder, one end of the two clamping cylinders is fixed with a push plate, one side of the push plate is fixed with two push rods, and one end of the two push rods is fixedly connected to the clamping plate.

[0010] The utility model provides a metal pipe port deformation prevention and expansion device, wherein guide blocks are fixedly provided on both sides of the bottom of two push plates, and a guide groove used in conjunction with the guide blocks is opened on the top of the base.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model realizes the two-stage diameter expansion of the pipe fitting, which can release stress gradually, avoiding excessive single diameter expansion which may cause local severe deformation of the material, thereby causing cracks, uneven wall thickness and other problems. At the same time, the integrated operation can directly complete the two-stage expansion from small to large diameter, without stopping the machine to replace the expanding heads of different diameters, shortening the processing cycle and improving production efficiency.

[0013] The inserting block of the utility model extends out of the secondary enlarging head body, which can lift the pipe fitting first, making it easy for one end of the tapered surface of the secondary enlarging head body to be inserted into the pipe fitting, thereby ensuring stable expansion of the pipe fitting.

[0014] 3. The utility model supports and fixes the pipe fittings by arranging a clamping assembly, thereby ensuring the stability of the pipe fittings during the expansion process, avoiding the pipe fittings from shaking or displacement due to pressure during the expansion process, thereby causing deviation in the expansion position of the pipe fittings, and at the same time, providing auxiliary support for the expansion part of the pipe fittings to ensure the integrity of the shape of the expansion part of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the first-stage expanding head assembly and the second-stage expanding head assembly of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the first-stage expansion head assembly of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the secondary expansion head assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the two-stage expansion head body of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the toothed disc and the mounting block of the utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0024] : In the figure: 1. base; 2. mounting frame; 3. driving assembly; 301. connecting block; 302. flaring cylinder; 303. sliding block; 304. sliding ring; 305. mounting block; 306. driving motor; 307. rotating rod; 308. driving gear; 309. toothed disc; 310. connecting column; 311. auxiliary gear; 312. fixing column; 4. primary expanding head assembly; 401. primary expanding head body; 402. connecting part; 403. slide groove; 404. annular groove; 405. slot; 5. secondary expanding head assembly; 501. secondary expanding head body; 502. sliding block; 503. insert block; 6. forming cavity; 7. clamping assembly; 701. fixing block; 702. clamping cylinder; 703. push plate; 704. push rod; 705. clamping plate; 706. guide block; 8. guide groove. DETAILED DESCRIPTION

[0025] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0026] See also Figure 1-8 The utility model is a metal pipe port deformation prevention expansion device, comprising a base 1, a mounting frame 2 is fixedly provided on the top of the base 1, a driving assembly 3 is provided below the mounting frame 2, the driving assembly 3 is connected to the secondary expanding head assembly 5, the secondary expanding head assembly 5 comprises a secondary expanding head body 501, the secondary expanding head body 501 is fixedly connected to the driving assembly 3, both sides of the vertical section of the inner wall of the secondary expanding head body 501 are fixedly provided with sliders 502, the inclined surface of the inner cavity of the secondary expanding head body 501 is fixedly provided with four plug-in blocks 503, and one end of the four plug-in blocks 503 extends to the outside of the secondary expanding head body 501, and the inner cavity of the secondary expanding head assembly 5 is movable A first-stage expanding head assembly 4 is provided, and the first-stage expanding head assembly 4 includes a connecting part 402, which is movably arranged in the inner cavity of the second-stage expanding head body 501 and the driving assembly 3, and both sides of the surface of the connecting part 402 are provided with sliding grooves 403 adapted to the slider 502, and the surface of the connecting part 402 and one end of the sliding groove 403 are provided with an annular groove 404, and one end of the connecting part 402 is fixed with the first-stage expanding head body 401, and four slots 405 adapted to the plug block 503 are equidistantly provided on the surface of the first-stage expanding head body 401, a forming cavity 6 is fixedly provided on the top of the base 1, and a clamping assembly 7 used in conjunction with the forming cavity 6 is provided on the top of the base 1.

[0027] The surface of the first-stage enlarging head body 401 is provided with slots 405 at equal distances, and the inclined surface of the inner cavity of the second-stage enlarging head body 501 is provided with an insert block 503, and the insert block 503 is located in the slot 405. The second-stage enlarging head body 501 is finally moved to the first-stage enlarging head body 401. The conical surfaces of the two have the same inclination angle and are coplanar, ensuring that the inclined part of the pipe expansion is flat. The surface of the connecting part 402 is provided with a slide groove 403 and an annular groove 404. A slider 502 is installed on the inner wall of the second-stage enlarging head body 501, and the slider 502 is located in the annular groove 404 or the slide groove 403. When the slider 502 is located in the annular groove 404, pushing the second-stage enlarging head body 501 will drive the first-stage enlarging head body 401 to expand once, rotating the second-stage enlarging head body 501 to align the slider 502 with the slide groove 403, pushing the second-stage enlarging head body 501 a second time will cause the second-stage enlarging head body 501 to move for secondary expansion.

[0028] The driving assembly 3 includes two fixed columns 312, the tops of the two fixed columns 312 are fixedly connected to the cross-plate part of the mounting frame 2, and the bottoms of the two fixed columns 312 are fixedly connected to the mounting block 305. The bottom of the mounting block 305 is fixedly provided with a sliding ring 304, and the other end of the connecting portion 402 passes through the inner cavity of the sliding ring 304 and the mounting block 305, and the inner cavity of the cross-plate part of the mounting frame 2 is provided with a through hole adapted to the connecting portion 402. By providing the through hole, the stroke of the first-stage expanding head assembly 4 and the second-stage expanding head assembly 5 can be increased. The sliding blocks 303 are movably connected to both sides of the surface of the sliding ring 304, and an annular groove is provided on the sliding block 304. The inner end of the sliding block 303 is inserted into the annular groove. The inner cavities of the two sliding blocks 303 are fixed with flaring cylinders 302, and one end of the two flaring cylinders 302 is fixed with a connecting block 301, and one end of the two connecting blocks 301 is fixedly connected to the surface of the second-stage expanding head body 501.

[0029] During the first expansion, the slider 502 is located in the annular groove 404, and the expansion cylinder 302 is started. The expansion cylinder 302 drives the secondary expansion head body 501 to move downward, and the downward movement of the secondary expansion head body 501 drives the slider 502 to move downward, and the downward movement of the slider 502 drives the connecting part 402 to move downward, and the downward movement of the connecting part 402 drives the primary expansion head body 401 to move downward to expand the pipe fitting once.

[0030] A driving motor 306 is fixedly provided on one side of the top of the mounting block 305. One end of the driving motor 306 is rotatably connected to a rotating rod 307. One end of the rotating rod 307 is rotatably connected to a driving gear 308. A toothed disc 309 is meshed on the surface of the driving gear 308, and two flared cylinders 302 are fixedly provided in the inner cavity of the toothed disc 309.

[0031] After one flaring is completed, the driving motor 306 is started, and the driving motor 306 drives the rotating rod 307 to rotate, and the rotating rod 307 drives the driving gear 308 to rotate, and the driving gear 308 drives the toothed disc 309 to rotate, and the toothed disc 309 drives the two flaring cylinders 302 to rotate, and the two flaring cylinders 302 drive the two connecting blocks 301 to rotate, and the two connecting blocks 301 drive the secondary expanding head body 501 to rotate, and the secondary expanding head body 501 drives the slider 502 and the insert block 503 to move, and when the slider 502 and the insert block 503 move to align with the slide groove 403 and the slot 405, the two flaring cylinders 302 are started, and the two connecting blocks 301 are pushed downward by the two flaring cylinders 302, and the secondary expanding head body 501 is driven downward by the two connecting blocks 301. The second expanding head body 501 moves downward, driving the slider 502 to slide downward into the inner cavity of the slide groove 403, and then the extended part of the plug block 503 slides into the inner cavity of the slot 405 and lifts the pipe fitting. The extended part of the plug block 503 is the same length as the tapered groove part of the slot 405, and the inclination angle of the outer surface of the plug block 503 is the same as the inclination angle of the tapered surface of the second expanding head body 501 and the first expanding head body 401. The lower end of the tapered end of the second expanding head body 501 is provided with an oblique angle. During the secondary expansion, the plug block 503 first expands the pipe fitting a little, and then the second expanding head body 501 is inserted through the oblique angle to perform the secondary expansion work. When the secondary expansion is completed, the conical surface of the second expanding head body 501, the conical surface of the first expanding head body 401 and the outer surface of the plug block 503 form a complete and smooth conical surface, ensuring the expansion effect.

[0032] A connecting column 310 is fixedly provided on the other side of the top of the mounting block 305 . An auxiliary gear 311 is movably provided on the top of the connecting column 310 , and the auxiliary gear 311 is meshed and connected with the gear disc 309 .

[0033] The sizes and tooth pitches of the driving gear 308 and the auxiliary gear 311 are consistent. By arranging the auxiliary gear 311 to cooperate with the rotation of the toothed disc 309, the stability of the toothed disc 309 is increased and the transmission efficiency of the toothed disc 309 is improved.

[0034] The clamping assembly 7 includes two fixed blocks 701, which are respectively fixed on both sides of the top of the base 1. The inner cavities of the two fixed blocks 701 are fixed with clamping cylinders 702, and one end of the two clamping cylinders 702 is fixed with a push plate 703. Two push rods 704 are fixed on one side of the push plate 703, and one end of the two push rods 704 is fixedly connected to the clamping plate 705.

[0035] When clamping the pipe fitting, the two clamping cylinders 702 are started at the same time, and the push plate 703 is driven to move by the two clamping cylinders 702, and the push rod 704 is driven to move by the movement of the push plate 703, and the clamping plate 705 is driven to move by the movement of the push rod 704. When the clamping plate 705 moves and is in close contact with the surface of the pipe fitting, the pipe fitting can be supported and fixed, which increases the stability of the pipe fitting during the processing and ensures the smooth progress of the flaring work and the integrity of the shape of the flared part of the pipe fitting.

[0036] Guide blocks 706 are fixedly provided on both sides of the bottom of the two push plates 703 , and a guide groove 8 for use with the guide blocks 706 is provided on the top of the base body 1 .

[0037] The movement of the push plate 703 drives the guide block 706 to slide in the guide groove 8. The cooperation between the guide block 706 and the guide groove 8 increases the stability of the push plate 703, avoids the push plate 703 from getting stuck or offset during the movement, and thus reduces the efficiency of supporting and fixing the pipe fittings.

[0038] When using the present invention: first, apply lubricant on the primary enlarging head body 401 and the secondary enlarging head body 501, place the pipe to be processed in the forming cavity 6, and then clamp it with the clamping assembly 7, then start the flaring cylinder 302, and the secondary enlarging head body 501 and the slider 502 are driven to move downward by the flaring cylinder 302, and the connecting portion 402 and the primary enlarging head body 401 are driven to move downward by the secondary enlarging head body 501 and the slider 502. The pipe is expanded once. After the expansion is completed, the driving motor 306 is started. The driving motor 306 drives the rotating rod 307 and the driving gear 308 to rotate. The driving gear 308 rotates to drive the toothed disc 309, the expansion cylinder 302, the connecting block 301 and the secondary expansion head body 501 to rotate. When the secondary expansion head body 501 rotates until the slider 502 on its inner wall is aligned with the slide groove 403, the two expansion cylinders 302 are started and driven by the expansion cylinder 302. The connecting block 301 and the secondary expanding head body 501 move downward to perform secondary expanding of the pipe. After the secondary expanding is completed, the expanding cylinder 302 is started, and the secondary expanding head body 501 and the slider 502 are driven upward by the expanding cylinder 302. When the slider 502 moves out of the slide groove 403 and is located at the annular groove 404, the driving motor 306 is started, and the driving motor 306 drives the rotating rod 307, the driving gear 308, the toothed disc 309, the expanding cylinder 302 and the secondary expanding head body 501 to move upward. 02. The connecting block 301, the secondary expanding head body 501 and the slider 502 rotate. When the slider 502 rotates to engage with the connecting part 402, the expanding cylinder 302 is started, and the secondary expanding head body 501 and the slider 502 are driven to move upward by the expanding cylinder 302. The connecting part 402 and the primary expanding head body 401 are driven upward by the secondary expanding head body 501 and the slider 502, so that the primary expanding head body 401 can be separated from the inner cavity of the pipe.

[0039] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A metal pipe port anti-deformation expansion device, comprising a base (1), characterized in that: A mounting frame (2) is fixedly provided on the top of the base (1), a driving assembly (3) is provided below the mounting frame (2), the driving assembly (3) is connected to a secondary expanding head assembly (5), the secondary expanding head assembly (5) comprises a secondary expanding head body (501), the secondary expanding head body (501) is fixedly connected to the driving assembly (3), both sides of the inner wall of the vertical section of the secondary expanding head body (501) are fixedly provided with sliders (502), the inclined surface of the inner cavity of the secondary expanding head body (501) is fixedly provided with four plugs (503), and one end of each of the four plugs (503) extends to the outside of the secondary expanding head body (501), the inner cavity of the secondary expanding head assembly (5) is movably provided with a primary expanding head assembly (4), the primary expanding head assembly (5) is fixedly provided with a slider (502), and the inclined surface of the inner cavity of the secondary expanding head body (501) is fixedly provided with four plugs (503), and one end of each of the four plugs (503) extends to the outside of the secondary expanding head body (501), the inner cavity of the secondary expanding head assembly (5) is movably provided with a primary expanding head assembly (4), and the primary expanding head assembly (5) is fixedly provided with a slider (502), and the inclined surface of the inner cavity of the secondary expanding head body (501) is fixedly provided with a slider (502), and the inclined surface of the inner cavity of the secondary expanding head body (501) is fixedly provided with a slider (502), and the inclined surface of the inner cavity of the secondary expanding head body (501) is fixedly provided with a slider (503), and the inclined surface of the inclined surface of the inner cavity of the secondary expanding head body (501) is fixedly provided with a slider (503), and the inclined surface of the inclined surface of the inclined surface of the inclined surface of the inclined surface The diameter head assembly (4) includes a connecting portion (402), the connecting portion (402) being movably arranged in the inner cavity of the secondary diameter expanding head body (501) and the driving assembly (3), the surface of the connecting portion (402) being provided with a slide groove (403) adapted to the slider (502) on both sides, the surface of the connecting portion (402) being provided with an annular groove (404) at one end of the slide groove (403), the first diameter expanding head body (401) being fixedly arranged at one end of the connecting portion (402), the surface of the first diameter expanding head body (401) being provided with four slots (405) adapted to the plug (503) being equidistantly arranged, the top of the base (1) being provided with a forming cavity (6), and the top of the base (1) being provided with a clamping assembly (7) used in conjunction with the forming cavity (6).

2. The metal pipe port anti-deformation expansion device according to claim 1, characterized in that: The driving assembly (3) includes two fixed columns (312), the tops of the two fixed columns (312) are fixedly connected to the horizontal plate portion of the mounting frame (2), the bottoms of the two fixed columns (312) are fixedly connected to the mounting block (305), the bottom of the mounting block (305) is fixedly provided with a sliding ring (304), and the other end of the connecting portion (402) passes through the inner cavity of the sliding ring (304) and the mounting block (305), both sides of the surface of the sliding ring (304) are movably connected with sliding blocks (303), the inner cavities of the two sliding blocks (303) are fixedly provided with flaring cylinders (302), one end of the two flaring cylinders (302) is fixedly provided with a connecting block (301), and one end of the two connecting blocks (301) is fixedly connected to the surface of the secondary expanding head body (501).

3. The metal pipe port anti-deformation expansion device according to claim 2, characterized in that: A driving motor (306) is fixedly provided on one side of the top of the mounting block (305), one end of the driving motor (306) is rotatably connected to a rotating rod (307), one end of the rotating rod (307) is rotatably connected to a driving gear (308), a toothed disc (309) is meshed on the surface of the driving gear (308), and two flared cylinders (302) are fixedly provided in the inner cavity of the toothed disc (309).

4. The metal pipe port anti-deformation expansion device according to claim 3, characterized in that: A connecting column (310) is fixedly provided on the other side of the top of the mounting block (305), and an auxiliary gear (311) is movably provided on the top of the connecting column (310), and the auxiliary gear (311) is meshed and connected with the toothed disc (309).

5. The metal pipe port anti-deformation expansion device according to claim 1, characterized in that: The clamping assembly (7) includes two fixed blocks (701), the two fixed blocks (701) are respectively fixed on both sides of the top of the base (1), the inner cavities of the two fixed blocks (701) are fixed with a clamping cylinder (702), one end of the two clamping cylinders (702) is fixed with a push plate (703), one side of the push plate (703) is fixed with two push rods (704), and one end of the two push rods (704) is fixedly connected to the clamping plate (705).

6. The metal pipe port anti-deformation expansion device according to claim 5, characterized in that: Guide blocks (706) are fixedly provided on both sides of the bottom of the two push plates (703), and a guide groove (8) for use with the guide blocks (706) is provided on the top of the base body (1).

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