Rotor pump body flange machining and positioning tool

Abstract

The utility model relates to a rotor pump body flange machining positioning tool, which belongs to the technical field of flange machining and comprises a workbench for bearing a rotor pump body flange and a positioning mechanism mounted at the top of the workbench. The positioning mechanism comprises a plurality of pressing plates arranged at the top of the workbench in a sliding mode and distributed in the circumferential direction in an array mode, material pressing slopes arranged at the ends, close to the flange, of the pressing plates, and a driving mechanism installed in the workbench and used for pushing the pressing plates towards the flange side at the same time. Through driving of the driving mechanism, after the pressing plates move at the same time, rotor pump body flanges with different diameters and thickness dimensions can be clamped and positioned through the material pressing inclined faces, the application range is wide, through arrangement of the material pressing inclined faces, the pressing plates can generate pressing force in the transverse direction and the vertical direction when the flanges are extruded, and therefore the pressing effect of the rotor pump body flanges is improved. And the rubber pad can elastically buffer the flange extruded by the pressing plate, so that the surface of the flange is unlikely to be crushed by the pressing plate.

Description

Technical Field

[0001] This utility model belongs to the field of flange processing technology, specifically relating to a positioning tooling for processing rotor pump body flanges. Background Technology

[0002] A rotor pump body flange is a flange connection used to connect a rotor pump to other pipelines or equipment. The rotor pump body flange ensures continuous liquid flow within the system through flange connections. Specifically, the rotor pump body flange is part of the rotor pump and is typically made of stainless steel or other metal materials, possessing high strength and corrosion resistance, capable of withstanding pressure and temperature changes within the system. When machining rotor pump body flanges, such as by drilling holes, positioning fixtures are required to position the flange to prevent displacement during machining and reduce machining accuracy.

[0003] When operators use positioning fixtures to position the flanges of rotor pump bodies, they often face the problem of differences in flange size specifications. Different models of rotor pump body flanges have different diameters, thicknesses, and other parameters. When operators face these flanges of different sizes, the limitations of traditional positioning fixtures become apparent. Some positioning fixtures have fixed dimensions and can only position flanges of the same model. As a result, operators often need to frequently change positioning fixtures of different models. However, changing to positioning fixtures that are suitable for flanges of that size is time-consuming and laborious, reducing processing efficiency. In this regard, this application proposes a positioning fixture for processing rotor pump body flanges. Utility Model Content

[0004] The purpose of this utility model is to provide a machining and positioning fixture for rotor pump body flange in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A positioning fixture for machining a rotor pump body flange includes a worktable for supporting the rotor pump body flange and a positioning mechanism installed on the top of the worktable. The positioning mechanism includes a plurality of pressure plates slidably disposed on the top of the worktable and arranged in a circumferential array, a pressure inclined surface disposed on one end of the pressure plate near the flange, and a drive mechanism installed inside the worktable for simultaneously pushing the pressure plates toward the flange side. A rubber pad is fixedly provided on the pressure inclined surface side of the pressure plate, and a rubber strip is fixedly provided at the bottom edge of the pressure plate. The rubber strip abuts against the top of the worktable.

[0007] As a further optimization of this utility model, a door is provided on one side of the workbench, and several limiting notches are provided on the top of the workbench. Each limiting notch of the workbench is slidably connected with a matching limiting plate, and the limiting plates are respectively fixedly connected to the bottom of the pressure plates.

[0008] As a further optimization of this utility model, a number of crossbars are fixedly provided inside the workbench, and one end of each crossbar passes through and extends to the outside of the limiting plate.

[0009] As a further optimization of this utility model, several inclined plates are fixedly provided at the bottom ends of several limiting plates. The driving mechanism includes a loop frame movably disposed between the outer walls of several inclined plates and an electric push rod fixedly installed on the inner bottom of the workbench for driving the loop frame to rise and fall. The inner side wall of the loop frame abuts against the inclined surface of the inclined plate.

[0010] As a further optimization of this utility model, a counterweight plate for pressing down the inclined plate is provided between several of the spiral frames, and a telescopic rod is fixed between the top of the counterweight plate and the bottom of the inner side of the workbench, with the counterweight plate located above the spiral frame.

[0011] As a further optimization of this utility model, a number of rollers are rotatably provided on the bottom outer side of the spiral frame, and the rollers are engaged with and abut against the outer wall of the inclined plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. Driven by the drive mechanism, several pressure plates move simultaneously and can use the pressure plate slope to clamp and position rotor pump body flanges of different diameters and thicknesses. It has a wide range of applications. The pressure plate slope generates different clamping forces in the horizontal and vertical directions when the pressure plates squeeze the flange, thereby stably positioning and fixing the flange. The rubber pad can provide elastic buffering for the flange squeezed by the pressure plate, so that the flange surface is not easily damaged by the pressure plate.

[0014] 2. The extension and retraction of the electric push rod drives the rise and fall of the return frame. After the return frame rises, it is guided by the inclined surface of the inclined plate, and several pressure plates are pressed towards the flange side at the same time to position the flange. After the return frame moves down, under the weight of the counterweight plate, the pressure plates and other components will move away from the flange, thereby realizing the unidirectional reciprocating movement of the pressure plates. When the pressure plates move, they can always cover the limit notch, preventing the chips generated during processing from entering the worktable through the limit notch and affecting the operation of various components. It is convenient and practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is another perspective schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a longitudinal sectional view of the present invention;

[0018] Figure 4 This is a utility model Figure 3 Enlarged view of the A-structure;

[0019] Figure 5 This is a utility model Figure 3 Enlarged view of the B-structure.

[0020] In the diagram: 1. Workbench; 11. Box door; 12. Limiting notch; 2. Pressure plate; 21. Pressing slope; 22. Rubber pad; 23. Rubber strip; 3. Limiting plate; 31. Inclined plate; 32. Crossbar; 33. Reverse frame; 34. Electric push rod; 4. Counterweight plate; 41. Telescopic rod; 42. Roller. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example

[0023] like Figure 1-5 As shown, a positioning fixture for machining a rotor pump body flange includes a worktable 1 and a positioning mechanism. The worktable 1 can support the rotor pump body flange. In use, the flange of the rotor pump body can be placed in the middle of the top surface of the worktable 1. A door 11 is rotatably provided on one side of the worktable 1. Opening the door 11 allows for the inspection and maintenance of the internal components of the worktable 1.

[0024] like Figure 2-4 As shown, the positioning mechanism is installed on the top of the workbench 1. The positioning mechanism includes several pressure plates 2 that are slidably disposed on the top of the workbench 1 and distributed in a circumferential array, a pressing inclined surface 21 disposed on the end of the pressure plate 2 near the flange, and a drive mechanism installed in the workbench 1 for simultaneously pushing the pressure plates 2 toward the flange side. A rubber pad 22 is fixedly provided on the pressing inclined surface 21 side of the pressure plate 2.

[0025] The drive mechanism can drive the pressure plate 2 to move. After several pressure plates 2 move at the same time, they can use the pressure inclined surface 21 to clamp and position the rotor pump body flanges of different diameters and thicknesses on the top of the workbench 1. The inclined surface 21 of the pressure plate 2 squeezes the flange, so that the pressure plate 2 will generate different lateral and vertical clamping forces when squeezing the flange, thereby stably positioning and fixing the flange. The rubber pad 22 can provide elastic buffer and soft protection for the flange squeezed by the pressure plate 2, so that the flange surface will not make hard contact with the pressure plate 2, thus making the flange surface less likely to be damaged by the pressure plate 2.

[0026] like Figure 3-4As shown, the top of the workbench 1 has several limiting notches 12. Each limiting notch 12 of the workbench 1 is slidably connected to a matching limiting plate 3. The limiting plates 3 are fixedly connected to the bottom of several pressure plates 2. Several crossbars 32 are fixedly installed inside the workbench 1. One end of the crossbar 32 passes through and extends to the outside of the limiting plate 3. The workbench 1 can limit the limiting plate 3 through the limiting notches 12 and allow the limiting plate 3 to slide laterally within the limiting notches 12. The pressure plates 2 are fitted against the top of the workbench 1. The workbench 1 can support and limit the pressure plates 2. The crossbars 32 can support and limit the limiting plates 3, so that the limiting plates 3 and pressure plates 2 can only move laterally.

[0027] like Figure 3-5 As shown, several limiting plates 3 are respectively fixedly provided with several inclined plates 31 at their bottom ends. The driving mechanism includes a circular frame 33 movably disposed between the outer walls of the several inclined plates 31, and an electric push rod 34 fixedly installed on the inner bottom of the workbench 1 for driving the circular frame 33 to rise and fall. The inner wall of the circular frame 33 abuts against the inclined surface of the inclined plate 31. The electric push rod 34 is connected to the bottom of the circular frame 33 and the inner bottom of the workbench 1. The number of electric push rods 34 is one or more. The model of the electric push rod 34 can be DTW500. The extension and retraction of the electric push rod 34 can drive the circular frame 33 to rise and fall. After the circular frame 33 rises, it will be guided by the inclined surface of the inclined plate 31 and press several pressure plates 2 simultaneously toward the flange side to position and fix the flange.

[0028] like Figure 3-5 As shown, a counterweight plate 4 for pressing down the inclined plate 31 is provided between several loop frames 33, and a telescopic rod 41 is fixed between the top of the counterweight plate 4 and the bottom of the inner side of the workbench 1. The counterweight plate 4 is located above the loop frame 33. Several rollers 42 are rotatably provided on the bottom of the outer side of the loop frame 33. The rollers 42 cooperate to abut against the outer wall of the inclined plate 31. The telescopic rod 41 limits the counterweight plate 4, so that the counterweight plate 4 can only move up and down.

[0029] When the rotating frame 33 moves down, under the pressure of the counterweight plate 4 on several inclined plates 31, the pressure plate 2 and other components will move away from the flange, thereby realizing the unidirectional reciprocating movement of the pressure plate 2. The rotation of the roller 42 can reduce the resistance and wear between the counterweight plate 4 and the inclined plates 31, and extend the service life of the inclined plates 31 and other components.

[0030] like Figure 3-4As shown, a rubber strip 23 is fixedly provided at the bottom edge of the pressure plate 2. The rubber strip 23 is in contact with the top of the worktable 1. The length and width of the pressure plate 2 are greater than the length and width of the limiting notch 12, so that the pressure plate 2 can always cover the limiting notch 12 when it moves, preventing the processing debris from entering the worktable 1 through the limiting notch 12 and affecting the operation of various components. In addition, the rubber strip 23 can fill the gap between the pressure plate 2 and the worktable 1 under its own elasticity, so that the processing debris is not easy to enter the bottom of the pressure plate 2 and enter the limiting notch 12 through the movement of the pressure plate 2.

[0031] It should be noted that, when using this type of rotor pump body flange processing and positioning fixture, first place the rotor pump body flange in the middle of the top surface of the workbench 1, and then control the extension and retraction of the electric push rod 34 to drive the return frame 33 to move up and down.

[0032] When the rotating frame 33 is raised, it will be guided by the inclined surface of the inclined plate 31, and several pressure plates 2 will be pressed towards the flange side at the same time, and the counterweight plate 4 will be lifted. At this time, after several pressure plates 2 move at the same time, they can use the pressure inclined surface 21 to clamp and position the rotor pump body flanges of different diameters and thicknesses on the top of the workbench 1, so as to facilitate subsequent processing such as opening holes. The inclined pressure of the pressure inclined surface 21 on the flange will generate different lateral and vertical clamping forces when the pressure plate 2 squeezes the flange, thereby stabilizing and fixing the flange. The rubber pad 22 can provide elastic buffer and soft protection for the flange squeezed by the pressure plate 2, so that the flange surface will not have hard contact with the pressure plate 2, thus making the flange surface less likely to be damaged by the pressure plate 2.

[0033] When the return frame 33 moves down, under the pressure of the counterweight plate 4 on several inclined plates 31, the pressure plate 2 and other components will move away from the flange, thereby realizing the unidirectional reciprocating movement of the pressure plate 2. The rotation of the roller 42 can reduce the resistance and wear between the counterweight plate 4 and the inclined plates 31, and extend the service life of the inclined plates 31 and other components. When the pressure plate 2 moves, it can always cover the limiting notch 12, preventing the chips generated during processing from entering the worktable 1 through the limiting notch 12 and affecting the operation of each component.

[0034] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A positioning fixture for machining a rotor pump body flange, comprising a worktable (1) for supporting the rotor pump body flange and a positioning mechanism mounted on the top of the worktable (1), characterized in that: The positioning mechanism includes several pressure plates (2) that are slidably disposed on the top of the workbench (1) and arranged in a circumferential array, a pressure inclined surface (21) disposed on the pressure plate (2) near the flange end, and a drive mechanism installed in the workbench (1) for simultaneously pushing the pressure plate (2) toward the flange side. A rubber pad (22) is fixedly provided on the pressure inclined surface (21) side of the pressure plate (2), and a rubber strip (23) is fixedly provided at the bottom edge of the pressure plate (2). The rubber strip (23) abuts against the top of the workbench (1).

2. The rotor pump body flange machining and positioning fixture according to claim 1, characterized in that: The workbench (1) has a rotating door (11) on one side, and several limiting notches (12) are opened on the top of the workbench (1). Each limiting notch (12) of the workbench (1) is slidably connected with a matching limiting plate (3), and several limiting plates (3) are respectively fixedly connected to the bottom of several pressure plates (2).

3. The rotor pump body flange machining and positioning fixture according to claim 2, characterized in that: The workbench (1) is fixedly provided with several crossbars (32), one end of which passes through and extends to the outside of the limiting plate (3).

4. The rotor pump body flange machining and positioning fixture according to claim 3, characterized in that: Several inclined plates (31) are fixedly provided at the bottom ends of several limiting plates (3). The driving mechanism includes a loop frame (33) movably disposed between the outer walls of several inclined plates (31) and an electric push rod (34) fixedly installed on the inner bottom of the workbench (1) for driving the loop frame (33) to rise and fall. The inner wall of the loop frame (33) abuts against the inclined surface of the inclined plate (31).

5. The rotor pump body flange machining and positioning fixture according to claim 4, characterized in that: The interior of several of the spiral frames (33) is provided with a counterweight plate (4) for pressing down the inclined plate (31) and a telescopic rod (41) fixed between the top of the counterweight plate (4) and the bottom of the inner side of the workbench (1). The counterweight plate (4) is located above the spiral frame (33).

6. The positioning fixture for machining a rotor pump body flange according to claim 5, characterized in that: The bottom outer side of the spiral frame (33) is provided with several rollers (42), which are engaged with the outer wall of the inclined plate (31).

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