Reamer for flange

Abstract

The utility model relates to a broaching machine for a flange. The broaching machine comprises a workbench, the flange arranged on the workbench, a broaching device for broaching the flange, a supporting piece for supporting the position of the flange and a fixing device for fixing the position of the flange. A working area is arranged on the workbench; the supporting piece is arranged at the upper part of the working area; the fixing device is arranged in the working area; the reaming device is arranged on the workbench; and the fixing device is used for fixing the position of the flange. The problems that when a broaching machine is used for broaching a flange, a simple fixing mechanism is mostly adopted for fixing the flange, so that deviation of the flange is easily caused when the flange is subjected to broaching machining, broaching failure is caused, and the requirement for flange broaching is difficult to meet are solved.

Description

Technical Field

[0001] The utility model relates to the field of flanges, in particular to a hole expanding machine used for flanges. Background Art

[0002] In the prior art, flange, also known as flange flange or flange, is a part that connects shafts to each other and is used for connection between pipe ends. It is also used as flange on equipment inlet and outlet, used for connection between two devices, such as reducer flange. Flange connection or flange joint refers to a detachable connection composed of flange, gasket and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices. It is used on equipment to refer to the inlet and outlet flanges of the equipment. There are holes on the flange, and the bolts connect the two flanges tightly. The flanges are sealed with gaskets. Flanges are divided into threaded flanges, welded flanges and clamping flanges. Hole expander, also known as ring rolling machine, is an advanced equipment for processing ring forgings. It is widely used in the production of ring holes in industrial fields such as bearings, engineering machinery, petrochemicals, aerospace, and power generation.

[0003] When processing the flange, a reamer is needed to perform the reaming operation on it. At present, the reamer in the prior art mostly adopts a simple fixing mechanism to fix the flange when reaming the flange. Therefore, it is easy to cause the flange to deviate during the reaming process, resulting in reaming failure. Therefore, it is difficult to meet the demand for flange reaming. Therefore, we make improvements on this and propose a reamer for flanges. Utility Model Content

[0004] The embodiment of the present application provides a reaming machine for flanges, thereby solving the problem that most reaming machines in the prior art use a simple fixing mechanism to fix the flange when reaming the flange. Therefore, the flange may be easily offset during the reaming process, resulting in reaming failure, making it difficult to meet the demand for flange reaming.

[0005] The technical solution adopted in the embodiments of the present application is as follows.

[0006] A reaming machine for flanges, comprising a workbench, a flange arranged on the workbench, a reaming device for reaming the flange, a support member for supporting the position of the flange, and a fixing device for fixing the position of the flange; a work area is opened on the workbench; the support member is arranged at the upper part of the work area; the fixing device is arranged in the work area; the reaming device is arranged on the workbench; and the fixing device fixes the position of the flange.

[0007] A further technical solution is: a avoidance hole corresponding to the middle hole of the flange is opened on the support member.

[0008] A further technical solution is: the fixing device includes a first threaded rod, a second threaded rod rotating in the working area, a first bevel gear arranged on the first threaded rod, a second bevel gear arranged on the second threaded rod, a clamping piece fixing the flange position and a rotating device driving the first threaded rod to rotate; the length of the first threaded rod is twice that of the second threaded rod; two groups of the second threaded rods are relatively arranged; four groups of clamping pieces are arranged in a circular array; the active ends of the clamping pieces are all facing the flange; the first bevel gear is meshed with the second bevel gear; the bottom of the clamping piece is in contact with the bottom of the working area; the active end of the rotating device is connected to the first threaded rod.

[0009] A further technical solution is: the first threaded rod is a bidirectional screw rod; the clamping piece is threadedly connected to threads on two opposite sides of the first threaded rod.

[0010] A further technical solution is: a pressing block is provided on the clamping member; a slope is provided on the pressing block; the slope presses against the top of the flange; the slope presses down the flange to prevent the flange from shifting in position as the reaming device moves upward.

[0011] A further technical solution is that the support member and the first threaded rod and the second threaded rod are staggered in position.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] 1. Since the workbench is square, a work area is provided in the center of the workbench, and the work area is circular. A support is fixedly connected to the upper part of the work area. The support consists of four groups of support rods and a group of circular plates. A avoidance hole corresponding to the center hole of the flange is provided in the middle of the support. A first threaded rod and a second threaded rod are rotatably connected in the work area. The first threaded rod is a bidirectional screw rod. The length of the first threaded rod is twice the length of the second threaded rod. A clamping piece is threadedly penetrated on the threads on both sides of the first threaded rod. A first bevel gear is provided on the first threaded rod. Two groups of the second threaded rod are relatively provided. The threaded rod rotates in the working area, and a second bevel gear is provided on the end face of the second threaded rod, which meshes with the first bevel gear. When the first threaded rod rotates, it drives the second threaded rod to rotate, thereby driving the clamping piece to synchronously approach or move away from one side of the flange. A lower pressing block is provided on the clamping piece, and an inclined surface is provided at the bottom of the lower pressing block, which corresponds to the bottom wall of the flange. As the clamping piece gradually approaches the flange, the inclined surface presses the flange at the same time, preventing the flange from shifting in position as the reaming device moves up. The clamping piece contacts the bottom of the working area, and slides along the working area, thereby realizing the rapid clamping of the flange position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the structure of the reamer used for flanges.

[0015] Figure 2 It is a top view of the hole expanding machine used for flange in the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the internal structure of the reamer for flanges.

[0017] Figure 4 It is a cross-sectional view of the hole expanding machine used for flange in the utility model.

[0018] In the figure: 1. workbench; 11. working area; 2. flange; 3. reaming device; 4. support member; 41. avoidance hole; 5. fixing device; 51. first threaded rod; 52. second threaded rod; 53. first bevel gear; 54. second bevel gear; 55. clamping member; 551. lower pressure block; 552. inclined surface; 56. rotating device. DETAILED DESCRIPTION

[0019] The embodiment of the present application provides a reaming machine for flanges, thereby solving the problem that most reaming machines in the prior art use a simple fixing mechanism to fix the flange when reaming the flange. Therefore, the flange may be easily offset during the reaming process, resulting in reaming failure, making it difficult to meet the demand for flange reaming.

[0020] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] A reaming machine for flanges, comprising a workbench 1, a flange 2 arranged on the workbench 1, a reaming device 3 for reaming the flange 2, a support member 4 for supporting the position of the flange 2, and a fixing device 5 for fixing the position of the flange 2; a work area 11 is opened on the workbench 1; the support member 4 is arranged at the upper part of the work area 11; the fixing device 5 is arranged in the work area 11; the reaming device 3 is arranged on the workbench 1; and the fixing device 5 fixes the position of the flange 2.

[0023] The support member 4 is provided with an avoidance hole 41 corresponding to the middle hole of the flange 2 .

[0024] The fixing device 5 includes a first threaded rod 51, a second threaded rod 52 rotating in the working area 11, a first bevel gear 53 arranged on the first threaded rod 51, a second bevel gear 54 arranged on the second threaded rod 52, a clamping piece 55 fixing the position of the flange 2 and a rotating device 56 driving the first threaded rod 51 to rotate; the length of the first threaded rod 51 is twice that of the second threaded rod 52; two groups of second threaded rods 52 are arranged opposite to each other; four groups of clamping pieces 55 are arranged in a circular array; the active ends of the clamping pieces 55 are all facing the flange 2; the first bevel gear 53 is meshed with the second bevel gear 54; the bottom of the clamping piece 55 is in contact with the bottom of the working area 11; the active end of the rotating device 56 is connected to the first threaded rod 51.

[0025] The first threaded rod 51 is a bidirectional threaded rod; the threads on two opposite sides of the first threaded rod 51 are both threadedly connected with a clamping member 55 .

[0026] The clamping member 55 is provided with a pressing block 551 ; the pressing block 551 is provided with an inclined surface 552 ; the inclined surface 552 presses against the top of the flange 2 ; the inclined surface 552 presses down the flange 2 to prevent the flange 2 from shifting in position as the reaming device 3 moves upward.

[0027] The support member 4 is staggered with the first threaded rod 51 and the second threaded rod 52 .

[0028] The workbench 1 is square, and a work area 11 is provided in the center of the workbench 1. The work area 11 is circular, and a support member 4 is fixedly connected to the upper part of the work area 11. The support member 4 is composed of four groups of support rods and a group of circular plates. A avoidance hole 41 corresponding to the center hole of the flange 2 is provided in the middle of the support member 4. A first threaded rod 51 and a second threaded rod 52 are rotatably connected in the work area 11. The first threaded rod 51 is a bidirectional screw rod. The length of the first threaded rod 51 is twice the length of the second threaded rod 52. A clamping member 55 is threadedly penetrated on both sides of the first threaded rod 51. A first bevel gear 53 is provided on the first threaded rod 51. Two groups of second threaded rods 52 are relatively provided. The second threaded rod 52 Rotating in the working area 11, the end face of the second threaded rod 52 is provided with a second bevel gear 54, and the second bevel gear 54 is meshed with the first bevel gear 53. When the first threaded rod 51 rotates, it drives the second threaded rod 52 to rotate, thereby driving the clamping piece 55 to synchronously approach or move away from one side of the flange 2. A lower pressing block 551 is provided on the clamping piece 55, and a slope 552 is provided at the bottom of the lower pressing block 551. The slope 552 corresponds to the bottom wall of the flange 2. As the clamping piece 55 gradually approaches the flange 2, the slope 552 presses the flange 2 to prevent the flange 2 from shifting in position as the reaming device 3 moves up. The clamping piece 55 contacts the bottom of the working area 11 and slides along the working area 11.

[0029] Since the workbench 1 is square, a work area 11 is provided in the center of the workbench 1, and the work area 11 is circular. A support member 4 is fixedly connected to the upper part of the work area 11. The support member 4 is composed of four groups of support rods and a group of circular plates. A avoidance hole 41 corresponding to the center hole of the flange 2 is provided in the middle of the support member 4. A first threaded rod 51 and a second threaded rod 52 are rotatably connected in the work area 11. The first threaded rod 51 is a bidirectional screw rod. The length of the first threaded rod 51 is twice the length of the second threaded rod 52. A clamping member 55 is threadedly penetrated on both sides of the first threaded rod 51. A first bevel gear 53 is provided on the first threaded rod 51. Two groups of second threaded rods 52 are relatively provided. The second threaded rod 52 rotates on the work area 11. In the area 11, the end face of the second threaded rod 52 is provided with a second bevel gear 54, and the second bevel gear 54 is meshed with the first bevel gear 53. When the first threaded rod 51 rotates, it drives the second threaded rod 52 to rotate, thereby driving the clamping member 55 to synchronously approach or move away from one side of the flange 2. A lower pressing block 551 is provided on the clamping member 55, and a slope 552 is provided at the bottom of the lower pressing block 551. The slope 552 corresponds to the bottom wall of the flange 2. As the clamping member 55 gradually approaches the flange 2, the slope 552 presses the flange 2 to prevent the flange 2 from shifting as the reaming device 3 moves upward. The clamping member 55 contacts the bottom of the working area 11, and the clamping member 55 slides along the working area 11, thereby realizing the rapid clamping of the flange 2.

[0030] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A hole reamer for flanges, It is characterized in that The invention comprises a workbench (1), a flange (2) arranged on the workbench (1), a hole expanding device (3) for expanding the hole of the flange (2), a support member (4) for supporting the position of the flange (2), and a fixing device (5) for fixing the position of the flange (2); a work area (11) is provided on the workbench (1); the support member (4) is arranged at the upper part of the work area (11); the fixing device (5) is arranged in the work area (11); the hole expanding device (3) is arranged on the workbench (1); and the fixing device (5) fixes the position of the flange (2).

2. The flange reamer according to claim 1, It is characterized in that The support member (4) is provided with an avoidance hole (41) corresponding to the middle hole of the flange (2).

3. The flange reamer according to claim 1, It is characterized in that The fixing device (5) comprises a first threaded rod (51), a second threaded rod (52) rotating in the working area (11), a first bevel gear (53) arranged on the first threaded rod (51), a second bevel gear (54) arranged on the second threaded rod (52), a pressing member (55) fixing the position of the flange (2), and a rotating device (56) driving the first threaded rod (51) to rotate; the first threaded rod (51) is twice as long as the second threaded rod (52); two groups of the second threaded rod (52) are arranged opposite to each other; four groups of the pressing members (55) are arranged in a circumferential array; the active ends of the pressing members (55) are all facing the flange (2); the first bevel gear (53) is meshed with the second bevel gear (54); the bottom of the pressing member (55) is in contact with the bottom of the working area (11); and the active end of the rotating device (56) is connected to the first threaded rod (51).

4. The flange expansion machine according to claim 3, It is characterized in that The first threaded rod (51) is a bidirectional threaded rod; the pressing member (55) is threadedly connected to threads on two opposite sides of the first threaded rod (51).

5. The hole expanding machine for flange according to claim 3, It is characterized in that The clamping member (55) is provided with a pressing block (551); the pressing block (551) is provided with an inclined surface (552); the inclined surface (552) presses against the top of the flange (2); the inclined surface (552) presses down the flange (2) to prevent the flange (2) from shifting in position as the reaming device (3) moves upward.

6. The flange expansion machine according to claim 3, It is characterized in that The support member (4) is staggered with the first threaded rod (51) and the second threaded rod (52).

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