Flat welding flange reaming device

Abstract

The utility model discloses a flat welding flange reaming device which comprises a bottom plate, a placing table is fixedly connected to the upper end of the bottom plate, a clamping mechanism is arranged in the placing table, and the clamping mechanism is used for fixing a flat welding flange. A lifting mechanism is arranged on the rear side of the upper end of the bottom plate, a reaming mechanism is arranged at the upper end of the placing table, and the bottom plate is connected with the reaming mechanism through the lifting mechanism. According to the utility model, the reaming mechanism is arranged, the flat welding flange to be reamed is placed on the placing table, then the clamping mechanism is used for clamping and fixing the flat welding flange, and after the flat welding flange is fixed, the lifting mechanism works to drive the reaming mechanism to move downwards; and at the moment, the eight mounting holes in the flat welding flange can be subjected to reaming operation at the same time, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat welding flange hole enlargement, in particular to a flat welding flange hole enlargement device. Background Art

[0002] A flat weld flange is a flange that is connected to a container or pipe by a corner weld. It is an arbitrary type of flange. During design, it is checked as an integral or loose flange based on the degree of integrity of the connection between the flange ring and the straight section. The flange ring is available in two types: with a neck and without a neck. Compared with the necked butt-weld flange, the flat weld flange has a simple structure and saves material. When processing the flat weld flange, it is usually necessary to expand the original hole on the flange through a hole expansion device.

[0003] However, when the existing hole reaming device is reaming the mounting holes on the flat welding flange, it can only reame one mounting hole at a time. Although this achieves the purpose of hole reaming, during the hole reaming process, after the hole reaming of one mounting hole is completed, the position of the flat welding flange needs to be changed before the hole reaming of another mounting hole can be performed, which makes the work efficiency relatively low and the operation more complicated. Therefore, it is necessary to design a flat welding flange hole reaming device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a flat welding flange hole expanding device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flat welding flange reaming device, comprising a base plate, the upper end of the base plate is fixedly connected to a placing table, a clamping mechanism is arranged inside the placing table, and the clamping mechanism is used to fix the flat welding flange; a lifting mechanism is arranged on the rear side of the upper end of the base plate, a reaming mechanism is arranged on the upper end of the placing table, and the base plate is connected to the reaming mechanism through the lifting mechanism.

[0006] As a further description of the above technical solution:

[0007] The clamping mechanism includes a cylinder, a movable disk, a transmission rod, an extrusion rod and a fixed cylinder. The upper end of the base plate is fixedly connected to the cylinder, and the cylinder is located inside the placement table. The protruding end of the cylinder is fixedly connected to the movable disk. The movable disk is rotatably connected to the transmission rod inside, and the end of the transmission rod away from the movable disk is rotatably connected to the extrusion rod. The upper end of the placement table is fixedly connected to the fixed cylinder, and the extrusion rod and the fixed cylinder are slidably connected.

[0008] As a further description of the above technical solution:

[0009] The lifting mechanism includes a support column, a first motor, a screw rod and a slider. The upper end of the base plate is fixedly connected to the support column, the screw rod is rotatably connected inside the support column, the slider is threadedly connected to the circumferential surface of the screw rod, the slider is located inside the support column and is slidably connected to the support column, the upper end of the support column is fixedly connected to the first motor, and the output end of the first motor is fixedly connected to the screw rod.

[0010] As a further description of the above technical solution:

[0011] The reaming mechanism includes a mounting plate, a second motor, a rotating shaft, a first gear, a supporting shaft, a second gear and a reaming drill. The front end of the slider is fixedly connected to the mounting plate, the rotating shaft and the supporting shaft are rotatably connected inside the mounting plate, eight supporting shafts are provided and evenly distributed around the rotating shaft, the upper end of the mounting plate is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the rotating shaft, the circumferential surface of the rotating shaft is fixedly connected to the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected to the supporting shaft, and the lower end of the support shaft is fixedly connected to the reaming drill.

[0012] As a further description of the above technical solution:

[0013] A protective shell is fixedly connected to the lower end of the mounting plate, and the first gear and the second gear are both located inside the protective shell.

[0014] As a further description of the above technical solution:

[0015] The lower end of the slider is fixedly connected with a connecting rod, the end of the connecting rod away from the slider is fixedly connected with a moving ring, the upper end of the moving ring is fixedly connected with a positioning column, the positioning column is located at the lower end of the reamer and corresponds to the reamer one by one.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the flat welding flange reaming device sets a reaming mechanism, places the flat welding flange to be reamed on a placing table, and then uses a clamping mechanism to clamp and fix the flat welding flange. After the flat welding flange is fixed, the lifting mechanism can drive the reaming mechanism to move downward. Since the reaming mechanism is provided with eight reaming drills, the eight mounting holes on the flat welding flange can be reamed at the same time, thereby improving work efficiency.

[0018] 2. Compared with the prior art, this flat welding flange reaming device, by setting a connecting rod, a movable ring and a positioning column, after the reaming mechanism rises and resets, the upper end of the movable ring is flush with the upper end of the placement table, so that the top end of the positioning column is higher than the upper end surface of the placement table by a certain distance. In this way, with the cooperation of the positioning column, the eight mounting holes on the flat welding flange can be positioned, thereby facilitating the subsequent reaming operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a flat welding flange hole expansion device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a flat welding flange hole expansion device proposed by the utility model;

[0021] Figure 3 A flat welding flange hole expansion device proposed by the utility model Figure 2 Enlarged view of part A in the middle;

[0022] Figure 4 A flat welding flange hole expansion device proposed by the utility model Figure 2 Enlarged view of part B.

[0023] Legend:

[0024] 1. Base plate; 2. Placement table; 3. Lifting mechanism; 301. Support column; 302. First motor; 303. Screw rod; 304. Slider; 4. Clamping mechanism; 401. Cylinder; 402. Moving disk; 403. Transmission rod; 404. Extrusion rod; 405. Fixed cylinder; 5. Reaming mechanism; 501. Mounting plate; 502. Second motor; 503. Rotating shaft; 504. First gear; 505. Support shaft; 506. Second gear; 507. Reaming drill; 6. Connecting rod; 7. Moving ring; 8. Positioning column; 9. Protective shell. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-4The utility model provides a flat welding flange reaming device, comprising a base plate 1, a placing table 2 is fixedly connected to the upper end of the base plate 1, a clamping mechanism 4 is arranged inside the placing table 2, and the clamping mechanism 4 is used to fix the flat welding flange; a lifting mechanism 3 is arranged on the rear side of the upper end of the base plate 1, a reaming mechanism 5 is arranged on the upper end of the placing table 2, and the base plate 1 is connected to the reaming mechanism 5 through the lifting mechanism 3.

[0027] Specifically, the flat welding flange to be expanded is placed on the placement table 2, and then the flat welding flange is clamped and fixed by the clamping mechanism 4. After the flat welding flange is fixed, the lifting mechanism 3 is operated to drive the expansion mechanism 5 to move downward. Since the expansion mechanism 5 is provided with eight expansion drills 507, the eight mounting holes on the flat welding flange can be expanded at the same time, thereby improving work efficiency.

[0028] The clamping mechanism 4 includes a cylinder 401, a movable disk 402, a transmission rod 403, an extrusion rod 404 and a fixed cylinder 405. The upper end of the base plate 1 is fixedly connected to the cylinder 401, and the cylinder 401 is located inside the placement table 2. The extended end of the cylinder 401 is fixedly connected to the movable disk 402, and the movable disk 402 is rotatably connected to the transmission rod 403. The end of the transmission rod 403 away from the movable disk 402 is rotatably connected to the extrusion rod 404. The upper end of the placement table 2 is fixedly connected to the fixed cylinder 405, and the extrusion rod 404 is slidably connected to the fixed cylinder 405. When working, when performing the clamping operation, the cylinder 401 extends out, and at this time, with the cooperation of the movable disk 402 and the transmission rod 403, the extrusion rod 404 can be driven to slide inside the fixed cylinder 405, so that the extrusion rod 404 moves toward the flat welding flange. When the extrusion rod 404 contacts the inner wall of the flat welding flange, the flat welding flange can be clamped and fixed under the action of the extrusion rod 404.

[0029] The lifting mechanism 3 includes a support column 301, a first motor 302, a screw rod 303 and a slider 304. The upper end of the base plate 1 is fixedly connected to the support column 301, and the screw rod 303 is rotatably connected inside the support column 301. The circumferential surface of the screw rod 303 is threadedly connected to the slider 304. The slider 304 is located inside the support column 301 and is slidably connected to the support column 301. The upper end of the support column 301 is fixedly connected to the first motor 302, and the output end of the first motor 302 is fixedly connected to the screw rod 303. When working, by turning on the first motor 302, the slider 304 can be driven to slide inside the support column 301 under the action of the screw rod 303, thereby facilitating the reaming mechanism 5 to move up and down. When the reaming mechanism 5 moves downward, it is convenient to carry out reaming operations.

[0030] The reaming mechanism 5 includes a mounting plate 501, a second motor 502, a rotating shaft 503, a first gear 504, a support shaft 505, a second gear 506 and a reaming drill 507. The front end of the slider 304 is fixedly connected to the mounting plate 501, and the rotating shaft 503 and the support shaft 505 are rotatably connected inside the mounting plate 501. There are eight support shafts 505, which are evenly distributed around the rotating shaft 503. The upper end of the mounting plate 501 is fixedly connected to the second motor 502, and the output end of the second motor 502 is fixedly connected to the rotating shaft 503. The circumferential surface of the rotating shaft 503 is fixedly connected to the first gear 504, and the first gear 504 is meshed with the second gear 506. The second gear 506 is meshed with the second gear 506. The support shafts 505 are fixedly connected, and a reaming drill 507 is fixedly connected to the lower end of the support shaft 505. When working, by turning on the second motor 502, the first gear 504 can be driven to rotate under the action of the rotating shaft 503, and then the support shaft 505 can be driven to rotate with the cooperation of the second gear 506. As the support shaft 505 rotates, the reaming drill 507 can be driven to rotate, and then the reaming operation can be achieved under the action of the reaming drill 507. Since the reaming mechanism 5 is provided with eight reaming drills 507, and the eight reaming drills 507 rotate at the same time, the eight mounting holes on the flat welding flange can be reamed at the same time, thereby improving work efficiency.

[0031] A protective shell 9 is fixedly connected to the lower end of the mounting plate 501, and the first gear 504 and the second gear 506 are both located inside the protective shell 9. When working, the protective shell 9 not only serves the purpose of protection, but also can support the support shaft 505 and the rotating shaft 503.

[0032] The lower end of the slider 304 is fixedly connected to a connecting rod 6, and the end of the connecting rod 6 away from the slider 304 is fixedly connected to a moving ring 7. The upper end of the moving ring 7 is fixedly connected to a positioning column 8. The positioning column 8 is located at the lower end of the reaming drill 507 and corresponds to the reaming drill 507 one by one. When working, after the reaming mechanism 5 rises and resets, the upper end of the moving ring 7 is flush with the upper end of the placement table 2, so that the top end of the positioning column 8 is higher than the upper end surface of the placement table 2 by a certain distance. In this way, with the cooperation of the positioning column 8, the eight mounting holes on the flat welding flange can be positioned, thereby facilitating the subsequent reaming operation.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat welding flange hole expansion device, comprising a bottom plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a placement platform (2), and a clamping mechanism (4) is arranged inside the placement platform (2), and the clamping mechanism (4) is used to fix the flat welding flange; a lifting mechanism (3) is arranged on the rear side of the upper end of the base plate (1), and a hole expansion mechanism (5) is arranged on the upper end of the placement platform (2), and the base plate (1) is connected to the hole expansion mechanism (5) via the lifting mechanism (3); The lifting mechanism (3) comprises a support column (301), a first motor (302), a screw rod (303) and a slider (304); the upper end of the base plate (1) is fixedly connected to the support column (301); the screw rod (303) is rotatably connected inside the support column (301); the circumferential surface of the screw rod (303) is threadedly connected to the slider (304); the slider (304) is located inside the support column (301) and is slidably connected to the support column (301); the upper end of the support column (301) is fixedly connected to the first motor (302); and the output end of the first motor (302) is fixedly connected to the screw rod (303); The reaming mechanism (5) comprises a mounting plate (501), a second motor (502), a rotating shaft (503), a first gear (504), a supporting shaft (505), a second gear (506) and a reaming drill (507). The front end of the slider (304) is fixedly connected to the mounting plate (501). The mounting plate (501) is rotatably connected to the rotating shaft (503) and the supporting shaft (505). Eight supporting shafts (505) are provided and are evenly distributed on the rotating shaft (503). ), the upper end of the mounting plate (501) is fixedly connected to a second motor (502), the output end of the second motor (502) is fixedly connected to a rotating shaft (503), the circumferential surface of the rotating shaft (503) is fixedly connected to a first gear (504), the first gear (504) is meshed with a second gear (506), the second gear (506) is fixedly connected to a supporting shaft (505), and the lower end of the supporting shaft (505) is fixedly connected to a reamer (507).

2. A flat welding flange hole expanding device according to claim 1, characterized in that: The clamping mechanism (4) comprises a cylinder (401), a movable disk (402), a transmission rod (403), an extrusion rod (404) and a fixed cylinder (405); the upper end of the base plate (1) is fixedly connected to the cylinder (401); the cylinder (401) is located inside the placement table (2); the protruding end of the cylinder (401) is fixedly connected to the movable disk (402); the movable disk (402) is rotatably connected to the transmission rod (403); the end of the transmission rod (403) away from the movable disk (402) is rotatably connected to the extrusion rod (404); the upper end of the placement table (2) is fixedly connected to the fixed cylinder (405); the extrusion rod (404) and the fixed cylinder (405) are slidably connected.

3. The flat welding flange hole expanding device according to claim 1, characterized in that: The lower end of the mounting plate (501) is fixedly connected to a protective shell (9), and the first gear (504) and the second gear (506) are both located inside the protective shell (9).

4. A flat welding flange hole expanding device according to claim 3, characterized in that: The lower end of the slider (304) is fixedly connected to a connecting rod (6), the end of the connecting rod (6) away from the slider (304) is fixedly connected to a moving ring (7), the upper end of the moving ring (7) is fixedly connected to a positioning column (8), and the positioning column (8) is located at the lower end of the reamer (507) and corresponds one-to-one with the reamer (507).

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