Cam pump flange welding tool

Abstract

The utility model relates to the technical field of flange welding equipment, in particular to a flange welding tool for a cam pump. The flange welding tool comprises a rack, a rotating table, a first clamping piece, a second clamping piece and an attaching mechanism. The rotating table is rotationally connected with the rack, the first clamping piece and the second clamping piece are installed on the rack, the attaching mechanism and the mechanical arm are arranged on the rack, and the welding gun is detachably connected to the mechanical arm; the first clamping piece comprises a clamping base, a clamping height adjusting piece and an angle adjusting piece, a clamping stand column is fixedly connected to the clamping base, the clamping height adjusting piece is connected with the clamping stand column through a screw, and the clamping height adjusting piece is rotationally connected with the angle adjusting piece; the plane clamping device solves the problem that due to the radian of the surface of the pump body, a traditional plane clamping device can not make full contact with the surface of the pump body easily, and therefore the clamping effect is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of flange welding equipment, in particular to a cam pump flange welding tool. Background Art

[0002] In the field of industrial fluid handling, cam pumps, as a positive displacement pump, are widely used to transport high-viscosity media containing solid particles. The structure of a cam pump usually includes a pump body and a flange mounted on the pump body, and the accurate alignment and firm connection of the flange are crucial to the performance of the pump. During the manufacturing and maintenance of the cam pump, the installation of the flange usually requires the use of special welding tools to ensure its coaxiality and stability with the pump body.

[0003] Traditional cam pump flange welding tooling designs focus primarily on providing sufficient clamping force to ensure accurate positioning of the flange during welding. However, this type of tooling has limitations when it comes to pump bodies with complex geometries, especially when the pump body surface has curvatures or irregular contours. The curvature of the pump body surface makes it difficult for traditional flat clamping devices to fully contact the pump body surface, resulting in poor clamping and even gaps in certain areas. This not only affects the quality of the weld, but can also cause stress concentration during the welding process, ultimately affecting the overall performance and service life of the cam pump.

[0004] For example, during the clamping process, if there is a gap between the curved surface of the pump body and the tooling, the flange may be slightly displaced under the action of welding thermal stress, which will directly lead to coaxial deviation between the flange and the pump body, thus affecting the sealing and operating efficiency of the pump. In addition, uneven clamping force may also cause local deformation of the pump body, further aggravating the coaxiality problem and reducing the reliability and efficiency of the pump.

[0005] In order to solve the above technical problems, the utility model designs a cam pump flange welding tool. Utility Model Content

[0006] The utility model provides a cam pump flange welding tool, which aims to solve the problem that the curvature of the pump body surface makes it difficult for the traditional plane clamping device to fully contact the pump body surface, resulting in poor clamping effect. The technical solution is as follows:

[0007] A cam pump flange welding tool, characterized in that it comprises a frame, a rotating table, a first clamping member, a second clamping member, and a clamping mechanism; the rotating table is rotatably connected to the frame, the first clamping member and the second clamping member are installed on the frame, the frame is provided with a clamping mechanism and a manipulator, and the manipulator is detachably connected to a welding gun;

[0008] The first clamping member includes a clamping base, a clamping height adjustment member and an angle adjustment member, the clamping base is fixedly connected to a clamping column, the clamping height adjustment member is screwed to the clamping column, the clamping height adjustment member is rotatably connected to the angle adjustment member, and the angle adjustment member is detachably connected to an arc member.

[0009] Preferably, the number of the first clamping member and the number of the second clamping member are plural.

[0010] Based on the above technical solution, the rotating platform includes a rotating motor and a cam pump mounting platform. The rotating motor is installed on a motor mounting seat. The output end of the rotating motor is connected to the cam pump mounting platform. A positioning piece is fixed to the cam pump mounting platform.

[0011] Preferably, the positioning member is a positioning pin.

[0012] Based on the above technical solution, a silicone pad is connected to the arc-shaped member.

[0013] On the basis of the above technical solution, the clamping mechanism includes a clamping cylinder, a clamping motor and an opposed double-piston cylinder, the cylinder body of the clamping cylinder is installed on the clamping mounting plate, and the free end of its piston rod is connected to the clamping sliding plate; the clamping motor is installed on the clamping sliding plate, and the output end of the clamping motor is connected to a connecting head, and the connecting head is disassembled and connected to the opposed double-piston cylinder.

[0014] Based on the above technical solution, a slide rail is installed on the close mounting plate, and the close sliding plate is slidably connected to the slide rail.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model has the following beneficial effects: on the one hand, the tooling can provide uniform and stable clamping force, avoiding the uneven distribution of clamping force caused by mismatched contact surfaces in traditional tooling, and reducing the risk of vibration and displacement during welding. On the other hand, the design of supporting the inner wall of the flange from the inside of the flange to close to the pump body effectively disperses the external force on the flange, reduces the risk of flange deformation, and thus enhances the stability and mechanical strength of the entire pump body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 : A schematic diagram of the structure of the utility model;

[0019] Figure 2 : A schematic diagram of the structure of the rotating platform of the utility model;

[0020] Figure 3 : A schematic structural diagram of the first clamping member of the utility model;

[0021] Figure 4 : A structural schematic diagram of the clamping mechanism of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below with reference to the accompanying drawings and examples:

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figure 1 As shown, a cam pump flange welding tool is characterized in that it includes a frame 1, a rotating table 2, a first clamping member 3, a second clamping member 4, and a clamping mechanism 5; the rotating table 2 is rotatably connected to the frame 1, the first clamping member 3 and the second clamping member 4 are installed on the frame 1, the frame 1 is provided with a clamping mechanism 5 and a manipulator 7, and the manipulator 7 is detachably connected to a welding gun 8;

[0027] like Figure 3As shown, the first clamping member 3 includes a clamping base 31, a clamping height adjustment member 33 and an angle adjustment member 34. The clamping base 31 is fixedly connected to a clamping column 32. The clamping height adjustment member 33 is screwed to the clamping column 32. The clamping height adjustment member 33 is rotatably connected to the angle adjustment member 34. The angle adjustment member 34 is detachably connected to an arc-shaped member 35. The clamping height adjustment member 33 is provided with a plurality of bolt holes for installing the clamping height adjustment member 33. The clamping height adjustment member 33 can be fixedly installed at a suitable height. The angle of the angle adjustment member 34 can be adjusted so that the arc-shaped member 35 is close to the pump body.

[0028] The plurality of first clamping members 3 and second clamping members 4 can automatically adjust the contact state with the pump body surface during the clamping process, ensuring good positioning and stable clamping effect throughout the entire welding process, thereby solving the clamping problem caused by the curvature of the pump body surface.

[0029] There are multiple first clamping members 3 and second clamping members 4. Multiple first clamping members 3 and second clamping members 4 are arranged around the rotating table 2, and the angle adjustment members 34 thereon are adjusted so that the clamping members fix and position the pump body. Multiple first clamping members 3 and second clamping members 4 should be arranged correspondingly to provide uniform clamping force.

[0030] like Figure 2 As shown, the rotating platform 2 includes a rotating motor 22 and a cam pump mounting platform 23 . The rotating motor 22 is mounted on a motor mounting seat 21 . The output end of the rotating motor 22 is connected to the cam pump mounting platform 23 . A positioning member 24 is fixed to the cam pump mounting platform 23 .

[0031] The positioning member 24 is a positioning pin. It is inserted into a pre-drilled hole to ensure the coaxiality of the flange and the pump body or pipe interface. The positioning pin can be rigid or spring-loaded to accommodate slight position changes. The positioning member 24 can also be a magnetic positioner. For ferromagnetic materials, the magnetic positioner can quickly absorb and fix the flange, which is particularly suitable for situations where the flange needs to be quickly replaced.

[0032] The arc-shaped member 35 is connected with a silicone pad, which can protect the pump body from being damaged during the clamping process.

[0033] like Figure 4As shown, the pressing mechanism 5 includes a pressing cylinder 52, a pressing motor 54 and an opposed double-piston cylinder 6. The cylinder body of the pressing cylinder 52 is mounted on a pressing mounting plate 51, and the free end of its piston rod is connected to a pressing sliding plate 53; the pressing motor 54 is mounted on the pressing sliding plate 53, and the output end of the pressing motor 54 is connected to a connector 55, and the connector 55 is disassembled and connected to the opposed double-piston cylinder 6. The internal structure of the opposed double-piston cylinder is characterized by having two pistons arranged face to face, and the two pistons share a hollow cylinder barrel. When compressed air is input to one end of the cylinder, the corresponding piston will be pushed forward, while the piston at the other end moves in the opposite direction under the action of the spring force or other reaction force. This design enables the opposed double-piston cylinder to achieve bidirectional synchronous motion, that is, the two pistons can extend and retract simultaneously and relatively.

[0034] Supporting the inner wall of the flange against the pump body from the inside can help control the deformation of the flange during heating and ensure the coaxiality and geometric accuracy between the flange and the pump body after cooling. It can also effectively disperse the external force on the flange and reduce the risk of flange deformation, thereby enhancing the stability and mechanical strength of the entire pump structure.

[0035] The close mounting plate 51 is mounted on a slide rail 511 , and the close sliding plate 53 is slidably connected to the slide rail 511 .

[0036] When in use, the pump body is placed on the cam pump mounting platform 23, and the positioning member 24 fixes the pump body. The clamping height adjustment member 33 and the angle adjustment member 34 are adjusted so that the arc member 35 is attached to the pump body. After adjustment, the clamping base 31 is fixed on the frame 1. Multiple clamping members are provided so that the multiple clamping members clamp the pump body.

[0037] The flange is placed on the opposed double-piston cylinder 6, and the two pistons of the opposed double-piston cylinder 6 jointly support the inner wall of the flange. The pressing cylinder 52 and the pressing motor 54 are controlled to align the flange with the pump body, and the flange is pressed against the place where the pump body needs to be welded. During alignment, a dial indicator or a laser alignment tool can be used to measure the coaxiality of the flange and the pump body to ensure the welding quality.

[0038] The manipulator 7 is driven to weld with a welding gun 8. After welding the flange on one side, the motor 22 is turned to work, the cam pump mounting platform 23 is turned, and then the flange on the other end is welded.

[0039] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A cam pump flange welding tool, characterized in that: The invention comprises a frame (1), a rotating table (2), a first clamping member (3), a second clamping member (4), and a pressing mechanism (5); the rotating table (2) is rotatably connected to the frame (1); the first clamping member (3) and the second clamping member (4) are mounted on the frame (1); the pressing mechanism (5) and a manipulator (7) are arranged on the frame (1); and a welding gun (8) is detachably connected to the manipulator (7); The first clamping member (3) comprises a clamping base (31), a clamping height adjustment member (33) and an angle adjustment member (34); the clamping base (31) is fixedly connected to a clamping column (32); the clamping height adjustment member (33) is screwed to the clamping column (32); the clamping height adjustment member (33) is rotatably connected to the angle adjustment member (34); and the angle adjustment member (34) is detachably connected to a curved member (35).

2. The cam pump flange welding tool according to claim 1, characterized in that: The first clamping member (3) and the second clamping member (4) are provided in plural numbers.

3. The cam pump flange welding tool according to claim 1, characterized in that: The rotating platform (2) comprises a rotating motor (22) and a cam pump mounting platform (23); the rotating motor (22) is mounted on a motor mounting seat (21); an output end of the rotating motor (22) is connected to the cam pump mounting platform (23); and a positioning member (24) is fixed to the cam pump mounting platform (23).

4. The cam pump flange welding tool according to claim 3, characterized in that: The positioning member (24) is a positioning pin.

5. The cam pump flange welding tool according to claim 1, characterized in that: The arc-shaped member (35) is connected to a silica gel pad.

6. The cam pump flange welding tool according to claim 1, characterized in that: The pressing mechanism (5) comprises a pressing cylinder (52), a pressing motor (54) and an opposed double-piston cylinder (6); the cylinder body of the pressing cylinder (52) is mounted on a pressing mounting plate (51), and the free end of its piston rod is connected to a pressing sliding plate (53); the pressing motor (54) is mounted on the pressing sliding plate (53), and the output end of the pressing motor (54) is connected to a connector (55), and the connector (55) is detachably connected to the opposed double-piston cylinder (6).

7. The cam pump flange welding tool according to claim 6, characterized in that: The close-fitting mounting plate (51) is mounted on a slide rail (511), and the close-fitting sliding plate (53) is slidably connected to the slide rail (511).

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