Positioning tool for flange machining

By designing a positioning fixture consisting of a base plate, a flip plate, a guide rail, a cylinder, and a screw drive mechanism, the problem of difficult positioning of irregular pipe fittings in existing technologies has been solved, enabling stable connection and welding of flanges and pipe fittings and improving welding efficiency.

CN223718724UActive Publication Date: 2025-12-26JIANHU BOAO HYDRAULIC MACHINERY MFG
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Patent Information

Application Number
CN202520071289.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2025-12-26
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Existing positioning fixtures are difficult to adapt to different types of pipe fittings, especially irregular pipe fittings, making it inconvenient to weld flanges to pipe fittings.

Method used

A positioning fixture comprising a base plate, a flipping plate, a guide rail, a cylinder, a screw drive mechanism, and a support unit was designed. The flange is fixed by a positioning column, the support unit adapts to the head and tail of the pipe fitting, the screw drive mechanism adjusts the position and height, and the cylinder adjusts the angle of the flipping plate and the movement of the sliding plate to achieve stable docking and clamping of the pipe fitting.

Benefits of technology

It enables stable positioning and welding of pipe fittings of different models and bending directions, has strong adaptability, and improves the welding efficiency of flanges and pipe fittings.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223718724U_ABST
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Abstract

The utility model discloses a positioning tool for flange processing, which comprises a bottom plate, one side of the bottom plate is connected with a wall plate, the wall plate is hinged with an overturning plate, the bottom plate is provided with a driving mechanism for controlling the overturning plate to rotate, the overturning plate is provided with a guide rail and a first air cylinder, the guide rail is connected with a sliding plate in a sliding manner, and the first air cylinder is connected with the sliding plate. The sliding plate is connected with a positioning column used for installing a flange, and a pressing mechanism is installed at the upper end of the sliding plate. The bottom plate is in transmission connection with a first sliding seat and a second sliding seat through two sets of first lead screw transmission mechanisms correspondingly, the first sliding seat and the second sliding seat are in transmission connection with a first lifting seat and a second lifting seat through two sets of second lead screw transmission mechanisms correspondingly, and a first supporting part is installed on the first lifting seat. And a second supporting part is mounted on the second lifting seat. The flange is fixed through the positioning column, the head of the pipe fitting is supported through the first supporting part, and the tail of the pipe fitting is supported through the second supporting part, so that the pipe fitting bending device is adaptive to pipe fittings with different bending directions.
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Description

TECHNICAL FIELD

[0001] The utility model relates to flange frock technical field, concretely is a kind of positioning frock for flange processing. BACKGROUND

[0002] In the process of flange processing, sometimes need to weld flange and pipeline, so need to position pipeline and flange.But pipeline has straight line type, also has special shape, such as S type, Z type and so on.Current positioning frock has the following problems when fixing flange and special-shaped pipeline: the angle of pipe bending, the direction of bending and the width of pipe are different, current positioning frock is difficult to position different types of pipe fittings, so that the welding of flange and pipe fitting is inconvenient. SUMMARY

[0003] In view of the deficiencies of prior art, the utility model provides a positioning frock for flange processing to solve the problems mentioned in the background.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] A positioning frock for flange processing, including bottom plate, the side of bottom plate is connected with wallboard, and the wallboard is hingedly connected with turnover plate, and the bottom plate is equipped with drive mechanism for controlling the rotation of turnover plate, and the turnover plate is equipped with guide rail and first air cylinder, and the guide rail is slidably connected with L-shaped sliding plate, and the telescopic end of first air cylinder is connected with sliding plate, and the sliding plate is connected with positioning column for installing flange through screw, and the upper end of sliding plate is installed with pressing mechanism;The bottom plate is equipped with two groups of parallel first screw rod transmission mechanisms, and the first screw rod transmission mechanisms are respectively transmissionally connected with first sliding seat and second sliding seat, and the first sliding seat and second sliding seat are respectively installed with vertical second screw rod transmission mechanism, and the second screw rod transmission mechanisms are respectively transmissionally connected with first lifting seat and second lifting seat, and the first lifting seat is installed with first support part, and the second lifting seat is installed with second support part.

[0006] Preferably, the drive mechanism is a second air cylinder hinged to the bottom plate, and the telescopic end of the second air cylinder is movably connected to the bottom surface of the turnover plate.

[0007] The above technical scheme controls the extension of the second air cylinder, which can drive the turnover plate to rotate upward or downward.

[0008] Preferably, the pressing mechanism comprises a hinged seat connected to the upper end of the sliding plate, a third cylinder hinged to the hinged seat, a connecting plate connected to the inner side of the hinged seat through a screw, a first connecting piece movably connected to the outer side of the connecting plate, a second connecting piece movably connected to the inner side of the connecting plate, a third connecting piece movably connected to the second connecting piece, the upper ends of the third connecting piece and the first connecting piece are movably connected to the telescopic end of the third cylinder, the bottom surface of the end of the second connecting piece away from the connecting plate is connected with a pressing rod, the bottom surface of the pressing rod is connected with a pressing block, and the bottom surface of the pressing block is arc-shaped.

[0009] The technical scheme has the advantages that the positioning column is inserted into the inner wall of the flange, then the pipe fitting is placed on the first support part and the second support part, one end of the pipe fitting is butted with the flange, then the third cylinder is controlled to extend, the pressing rod is driven to descend through the action of the first connecting piece, the third connecting piece and the second connecting piece, the pipe fitting is pressed tightly through the pressing block, and the pipe fitting is kept stable for welding.

[0010] Preferably, the first support part comprises a first support plate connected to the first lifting seat and a U-shaped plate connected to the first support plate.

[0011] The technical scheme has the advantages that the U-shaped plate is used for supporting the head of the pipe fitting, the first lifting seat can be driven to ascend and descend through the second screw rod transmission mechanism on the first sliding seat, and thus different heights of pipe fittings can be adapted.

[0012] Preferably, the second support part comprises a second support plate connected to the second lifting seat, an arc-shaped pressing plate hinged to one side of the second support plate, an arc-shaped groove arranged at the upper end of the second support plate, a rubber block with elasticity connected to the inner side of the pressing plate, and the pressing plate and the second support plate are connected through bolts at the ends away from the hinged point.

[0013] The technical scheme has the advantages that the arc-shaped groove is used for supporting the tail of the pipe fitting, the tail of the pipe fitting is placed in the arc-shaped groove, then the pipe fitting is pressed on the second support plate through the pressing plate, and the rubber block can prevent the pipe fitting from being damaged.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The positioning column can fix the flange, the first support part can support the head of the pipe fitting, the second support part can support the tail of the pipe fitting, the positions of the first sliding seat and the second sliding seat can be adjusted through the two groups of first screw rod transmission mechanisms, the heights of the first lifting seat and the second lifting seat can be adjusted through the two groups of second screw rod transmission mechanisms, and thus pipe fittings with different heights and different bending directions can be adapted.

[0016] In addition, the first cylinder works to push the sliding plate to move, so that the flange is butted with the pipe fitting, and the second cylinder works to adjust the angle of the turnover plate to adapt to the installation angle of the pipe fitting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the utility model;

[0018] Figure 2 It is a schematic view of the positioning column and the pressing mechanism;

[0019] Figure 3 It is a schematic view of the first support part and the second support part;

[0020] In the drawing: 1 - bottom plate, 2 - wallboard, 3 - turnover plate, 4 - guide rail, 5 - first air cylinder, 6 - slide plate, 7 - positioning column, 8 - first screw rod transmission mechanism, 9 - first slide, 10 - second slide, 11 - second screw rod transmission mechanism, 12 - first lifting seat, 13 - second lifting seat, 14 - second air cylinder, 15 - hinged seat, 16 - third air cylinder, 17 - connecting plate, 18 - first connecting piece, 19 - second connecting piece, 20 - third connecting piece, 21 - pressing rod, 22 - pressing block, 23 - first support plate, 24 - U-shaped plate, 25 - second support plate, 26 - pressing plate, 27 - rubber block, 28 - pipe fitting, 29 - flange. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-3 A kind of positioning tool for flange machining, including bottom plate 1, the side of bottom plate 1 is connected with wallboard 2, turnover plate 3 is hinged on wallboard 2, driving mechanism for controlling the rotation of turnover plate is arranged on bottom plate 1, the driving mechanism is second air cylinder 14 hinged on bottom plate, the telescopic end of second air cylinder 14 is movably connected with the bottom surface of turnover plate 3.Control second air cylinder 14 extends, can drive turnover plate 3 to rotate upwards or downwards.

[0024] The turnover plate 3 is provided with a guide rail 4 and a first cylinder 5, the guide rail 4 is slidably connected with an L-shaped slide plate 6, the first cylinder 5 is connected with the slide plate 6, the slide plate 6 is connected with a positioning column 7 for mounting a flange through a screw, and the upper end of the slide plate 6 is provided with a pressing mechanism. The positioning column 7 can be inserted into the flange to fix the flange, and the slide plate 6 can slide on the guide rail 4 through the operation of the first cylinder 5, so that the flange is butt-jointed with a pipe fitting. When the positioning column is inserted into the inner wall of the flange, in order to stabilize the flange, the outer wall of the positioning column can be sleeved with a rubber sleeve which has elasticity and friction force, and the rubber sleeve can keep the flange stable due to the elasticity and friction force after the flange is inserted into the rubber sleeve.

[0025] The pressing mechanism comprises a hinged seat 15 connected to the upper end of the slide plate, a third cylinder 16 hinged to the hinged seat, a connecting plate 17 connected to the inner side of the hinged seat through a screw, a first connecting piece 18 movably connected to the outer side of the connecting plate, a second connecting piece 19 movably connected to the inner side of the connecting plate, a third connecting piece 20 movably connected to the second connecting piece 19, the upper ends of the third connecting piece 20 and the first connecting piece 18 are movably connected with the extension end of the third cylinder 16, the bottom surface of the end of the second connecting piece 19 away from the connecting plate is connected with a pressing rod 21, the bottom surface of the pressing rod 21 is connected with a pressing block 22, and the bottom surface of the pressing block is arc-shaped. The third cylinder 16 is controlled to extend, the pressing rod 21 is driven to descend through the action of the first connecting piece 18, the third connecting piece 20 and the second connecting piece 19, and the pipe fitting is pressed tightly through the pressing block 22.

[0026] The bottom plate 1 is provided with two groups of parallel first screw rod transmission mechanisms 8, and the first screw rod transmission mechanisms 8 are respectively transmissionally connected with a first sliding seat 9 and a second sliding seat 10, the first sliding seat and the second sliding seat can be controlled to move forward and backward on the bottom plate through the two groups of first screw rod transmission mechanisms, the first sliding seat 9 and the second sliding seat 10 are both provided with vertical second screw rod transmission mechanisms 11, the second screw rod transmission mechanisms 11 are respectively transmissionally connected with a first lifting seat 12 and a second lifting seat 13, the first lifting seat and the second lifting seat can be controlled to lift and lower through the two groups of second screw rod transmission mechanisms. The first lifting seat 12 is provided with a first supporting part, and the second lifting seat 13 is provided with a second supporting part. The first screw rod transmission mechanism and the second screw rod transmission mechanism in the embodiment are both driven by a driving screw rod to drive the corresponding sliding seat to rotate, the transmission mode is a common transmission mode, and the detailed structure and principle of the first screw rod transmission mechanism and the second screw rod transmission mechanism are not described in detail. Figure 1 It can be seen that the specific structure of the screw rod transmission mechanism in the embodiment, and therefore the specific structure and principle of the first screw rod transmission mechanism and the second screw rod transmission mechanism are not described in detail.

[0027] The working principle of the embodiment is as follows:

[0028] The flange inner wall is inserted by the positioning column 7, and then the pipe 28 is placed on the first support part and the second support part. The head of the pipe is supported by the first support part, and the tail of the pipe is supported by the second support part. The positions of the first sliding seat 9 and the second sliding seat 10 can be adjusted by the two groups of first screw rod transmission mechanisms 8, and the heights of the first lifting seat 12 and the second lifting seat 13 can be adjusted by the two groups of second screw rod transmission mechanisms 11, so that the pipes of different heights and different bending directions can be supported. After the pipe is placed, the angle of the turnover plate 3 is adjusted by the work of the second cylinder 14, the sliding plate 6 is driven to move by the work of the first cylinder 5, the flange 29 is butt-jointed with the pipe 28, then the third cylinder 16 is controlled to extend, the pressure rod 21 is driven to descend by the actions of the first connecting piece 18, the second connecting piece 19 and the third connecting piece 20, and the pipe is pressed tightly by the pressing block 22, so that the pipe is kept stable for welding.

[0029] Embodiment 2

[0030] The first support part includes the first support plate 23 connected to the first lifting seat and the U-shaped plate 24 connected to the first support plate. The U-shaped plate 24 is used to support the head of the pipe, and the first lifting seat 12 can be lifted and lowered by the second screw rod transmission mechanism 11 on the first sliding seat 9, so as to adapt to the pipes of different heights.

[0031] The second support part includes the second support plate 25 connected to the second lifting seat, the pressing plate 26 hingedly connected to one side of the second support plate and in an arc shape, the arc-shaped groove provided at the upper end of the second support plate 25, the rubber block 27 with elasticity connected to the inner side of the pressing plate 26, and the ends of the pressing plate 26 and the second support plate 25 away from the hinged point being connected by bolts. The arc-shaped groove is used to support the tail of the pipe. The tail of the pipe is placed in the arc-shaped groove, and then the pipe is pressed on the second support plate 25 by the pressing plate 26, so that the pipe is kept stable, and the rubber block 27 can prevent the pipe from being damaged.

[0032] It should be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for flange machining, characterized by: The utility model provides a wallboard automatic folding device, including bottom plate (1), one side of bottom plate (1) is connected with wallboard (2), and the wallboard (2) is hinged with turnover board (3), and the bottom plate (1) is equipped with the drive mechanism of control turnover board rotation, and the turnover board (3) is equipped with guide rail (4) and first cylinder (5), and the guide rail (4) is slidably connected with the slide plate (6) of L type, and the telescopic end of first cylinder (5) is connected with slide plate (6), and slide plate (6) is connected with the positioning column (7) for installing flange through screw, and the upper end of slide plate (6) is installed with the pressing mechanism, The bottom plate (1) is provided with two groups of parallel first lead screw transmission mechanisms (8), and the first lead screw transmission mechanisms (8) are respectively connected with first sliding seat (9) and second sliding seat (10) in drive mode, the first sliding seat (9) and the second sliding seat (10) are all installed with vertical second lead screw transmission mechanism (11), and the second lead screw transmission mechanisms (11) are respectively connected with first lifting seat (12) and second lifting seat (13) in drive mode, and the first lifting seat (12) is installed with a first support part, and the second lifting seat (13) is installed with a second support part.

2. The positioning tool for machining flange according to claim 1, characterized in that: The drive mechanism is a second cylinder (14) hinged to the bottom plate, and the telescopic end of the second cylinder (14) is movably connected to the bottom surface of the turnover board (3).

3. The positioning tool for machining flange according to claim 2, characterized in that: The pressing mechanism includes a hinged seat (15) connected to the upper end of the slide plate, a third cylinder (16) hinged to the hinged seat, a connecting plate (17) connected to the inner side of the hinged seat by screws, a first connecting piece (18) movably connected to the outer side of the connecting plate, a second connecting piece (19) movably connected to the inner side of the connecting plate, a third connecting piece (20) movably connected to the second connecting piece (19), the upper ends of the third connecting piece (20) and the first connecting piece (18) are movably connected to the telescopic end of the third cylinder (16), a pressure rod (21) is connected to the bottom surface of the end of the second connecting piece (19) away from the connecting plate, a pressure block (22) is connected to the bottom surface of the pressure rod (21), and the bottom surface of the pressure block is arc-shaped.

4. The positioning tool for machining flange according to claim 3, characterized in that: The first support part includes a first support plate (23) connected to the first lifting seat and a U-shaped plate (24) connected to the first support plate.

5. The positioning tool for machining flange according to claim 4, characterized in that: The second support part includes a second support plate (25) connected to the second lifting seat, an arc-shaped pressing plate (26) hinged to one side of the second support plate, an arc-shaped groove is arranged on the upper end of the second support plate (25), a rubber block (27) with elasticity is connected to the inner side of the pressing plate (26), and the ends of the pressing plate (26) and the second support plate (25) away from the hinge point are connected by bolts.