Fixture for machining impeller of fire pump

By designing a fire pump impeller clamp that includes a base, a fixing component, and a lateral movement component, and utilizing the cooperation of a turntable and a plug-in bracket to achieve convenient flipping, the problem of needing to disassemble and reassemble the fire pump impeller after flipping in the existing technology is solved, thus improving work efficiency.

CN224012269UActive Publication Date: 2026-03-20NANJING WANGYANG PUMP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing fire pump impeller machining fixtures need to be removed and re-fixed after being flipped, resulting in a waste of manpower and time and low work efficiency.

Method used

A clamp comprising a base, a fixing component, and a lateral movement component was designed. Through the cooperation of a turntable and a plug-in bracket, the fire pump impeller can be easily rotated, avoiding the disassembly and assembly process. Springs and limit modules are used to ensure stability after rotation.

Benefits of technology

This technology enables convenient reversal of the fire pump impeller, reducing manpower and time consumption and improving processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fire pump machining equipment, in particular to a clamp for machining a fire pump impeller. Comprising a base, a fixing assembly, a transverse moving assembly and a mounting plate, the fixing assembly comprises a U-shaped frame, a rectangular frame, a driving rod, an inserting frame, a spring, a rotating disc and a limiting module, the U-shaped frame is fixedly connected with the mounting plate and located above the mounting plate, the rectangular frame is rotationally arranged in the U-shaped frame, the driving rod is connected with the rectangular frame and penetrates through the U-shaped frame, and the rotating disc is fixedly connected with the driving rod; the inserting frame is movably connected with the rotating disc and penetrates through the rotating disc, the U-shaped frame is provided with two limiting holes, the inserting frame is further matched with the two limiting holes, the two ends of the spring are fixedly connected with the inserting frame and the rotating disc respectively, and the limiting module is arranged on the U-shaped frame. Manpower and time are greatly reduced, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of fire pump processing equipment, and in particular to a fixture for processing fire pump impellers. Background Technology

[0002] Fire pumps, as the name suggests, are pumps used for firefighting. Imported products, fire pumps are categorized in different ways. They are characterized by their fully sealed, leak-free, and corrosion-resistant features, and are widely used in environmental protection, water treatment, and firefighting departments. They are used to pump various liquids and are ideal for creating leak-free, pollution-free, and civilized workshops and factories. The pump types are all similar, differing only in head and flow rate. In the production process of fire pumps, the impeller is a crucial component, directly determining the pump's energy consumption. However, current impeller manufacturing fixtures are relatively fixed and cannot fully adapt to the various processes involved in impeller processing.

[0003] In the existing technology patent CN216179943U, a fixture for processing fire pump impellers is disclosed. The impeller fixing fixture is installed on the fixture fixing seat by fixing bolts. The fixture fixing seat is fixedly installed on the fixture adjustment bracket. The processing position can be adjusted according to different processing tools, providing a better processing field of view. Moreover, it can realize the rapid clamping of workpieces and improve the processing efficiency of impellers.

[0004] However, in the existing methods described above, after flipping the fire pump impeller, it is necessary to first release the fixing of the fire pump impeller, and then flip the fire pump impeller to fix it again, which requires a lot of manpower and time and has low work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a fixture for processing fire pump impellers, which solves the problem in the prior art that after flipping the fire pump impeller, it is necessary to first release the fixing of the fire pump impeller and then flip the fire pump impeller to fix it, which requires a lot of manpower and time and has low work efficiency.

[0006] To achieve the above objectives, this utility model employs a fixture for processing fire pump impellers, comprising a base, a fixing component, a transverse component, and a mounting plate. The transverse component is disposed above the base, the mounting plate is connected to the transverse component, and the fixing component is disposed above the mounting plate.

[0007] The fixing assembly includes a U-shaped frame, a rectangular frame, a drive rod, a plug-in bracket, a spring, a turntable, and a limiting module. The U-shaped frame is fixedly connected to the mounting plate and located above the mounting plate. The rectangular frame is rotatably disposed within the U-shaped frame. The drive rod is connected to the rectangular frame and passes through the U-shaped frame. The turntable is fixedly connected to the drive rod. The plug-in bracket is movably connected to the turntable and passes through the turntable. The U-shaped frame has two limiting holes, and the plug-in bracket is also adapted to the two limiting holes. The two ends of the spring are fixedly connected to the plug-in bracket and the turntable, respectively. The limiting module is disposed on the U-shaped frame.

[0008] The limiting module includes a fixed clamping block, a movable clamping block, a threaded rod, a handwheel, and a sleeve. The fixed clamping block is fixedly connected to the rectangular frame and located on the inner side wall of the rectangular frame. The movable clamping block is located inside the rectangular frame. The sleeve is fixedly connected to the rectangular frame and passes through the rectangular frame. The threaded rod is threadedly engaged with the sleeve and passes through the sleeve. The handwheel is connected to the threaded rod.

[0009] The fixing component further includes a limiting block, which is movably connected to the plug-in frame and located between the plug-in frame and the turntable.

[0010] The fixing component further includes two arc blocks, both of which are fixedly connected to the plug-in frame and are located on the outer side wall of the plug-in frame.

[0011] The lateral movement assembly includes two lead screw nuts and two lead screws. The base has two mounting slots, and each mounting slot is rotatably equipped with a lead screw. Each lead screw nut is threadedly engaged with the corresponding lead screw. The mounting plate is fixedly connected to the two lead screw nuts and is located above the base.

[0012] This utility model discloses a fixture for processing fire pump impellers. When processing a fire pump impeller, the impeller is first positioned within a rectangular frame and then fixed using a fixing component. One side of the impeller is then processed. When it is necessary to flip the impeller, the plug-in bracket is pulled from the outside of the turntable, disengaging it from the limiting hole of the U-shaped frame. The spring is stretched, releasing the turntable. Rotating the turntable then drives the drive rod, causing the rectangular frame to rotate within the U-shaped frame. The impeller is then flipped. The plug-in bracket is then released, re-entering the limiting hole of the U-shaped frame, fixing the turntable and preventing further movement of the rectangular frame. The impeller within the rectangular frame is then processed. This method facilitates easy flipping of the fire pump impeller without disassembly, significantly reducing manpower and time, and improving work efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the fixture for machining fire pump impellers according to this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the rectangular frame of the fixture for processing fire pump impellers according to this utility model, showing the removal of restrictions.

[0016] Figure 3 This is a side view of the structure of the fixture for machining fire pump impellers according to this utility model.

[0017] Figure 4 This is the utility model Figure 3 A cross-sectional view of the AA line structure.

[0018] 101-Base, 102-Mounting plate, 103-U-shaped frame, 104-Rectangular frame, 105-Drive rod, 106-Plug-in bracket, 107-Spring, 108-Turntable, 109-Limiting hole, 110-Fixed clamping block, 111-Movable clamping block, 112-Threaded rod, 113-Handwheel, 114-Sleeve, 115-Limiting block, 116-Arc block, 117-Screw nut, 118-Screw, 119-Mounting groove, 120-Motor. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1-4 This utility model provides a fixture for processing fire pump impellers: including a base 101, a fixing component, a transverse component and a mounting plate 102, wherein the transverse component is disposed above the base 101, the mounting plate 102 is connected to the transverse component, and the fixing component is disposed above the mounting plate 102;

[0021] The fixing assembly includes a U-shaped frame 103, a rectangular frame 104, a drive rod 105, a plug-in bracket 106, a spring 107, a turntable 108, and a limiting module. The U-shaped frame 103 is fixedly connected to the mounting plate 102 and is located above the mounting plate 102. The rectangular frame 104 is rotatably disposed within the U-shaped frame 103. The drive rod 105 is connected to the rectangular frame 104 and passes through the U-shaped frame 103. The turntable 108 is fixedly connected to the drive rod 105. The plug-in bracket 106 is movably connected to the turntable 108 and passes through the turntable 108. The U-shaped frame 103 has two limiting holes 109. The plug-in bracket 106 is also adapted to the two limiting holes 109. The two ends of the spring 107 are fixedly connected to the plug-in bracket 106 and the turntable 108, respectively. The limiting module is disposed on the U-shaped frame 103.

[0022] In this embodiment, when processing the fire pump impeller, the fire pump impeller is first placed within the rectangular frame 104 and then fixed using the fixing assembly. Then, one side of the fire pump impeller is processed. When it is necessary to flip the fire pump impeller, the plug-in bracket 106 is pulled outward from the turntable 108, causing the plug-in bracket 106 to disengage from the limiting hole 109 of the U-shaped frame 103. The spring 107 is stretched, and the turntable 108 is released from its restriction. Then, rotating the turntable 108 drives the drive rod 105 to rotate. The drive rod 105 causes the rectangular frame 104 to rotate within the U-shaped frame 103, thereby flipping the fire pump impeller. Then, the plug-in bracket 106 is released, and it enters the limiting hole 109 of the U-shaped frame 103, fixing the turntable 108 and preventing the rectangular frame 104 from moving further. Subsequently, the fire pump impeller within the rectangular frame 104 is processed. By using the above method, the fire pump impeller can be easily flipped without disassembly, greatly reducing manpower and time and improving work efficiency.

[0023] Furthermore, the limiting module includes a fixed clamping block 110, a movable clamping block 111, a threaded rod 112, a handwheel 113, and a sleeve 114. The fixed clamping block 110 is fixedly connected to the rectangular frame 104 and is located on the inner side wall of the rectangular frame 104. The movable clamping block 111 is located inside the rectangular frame 104. The sleeve 114 is fixedly connected to the rectangular frame 104 and passes through the rectangular frame 104. The threaded rod 112 is threadedly engaged with the sleeve 114 and passes through the sleeve 114. The handwheel 113 is connected to the threaded rod 112.

[0024] In this embodiment, when fixing the fire pump impeller, the fire pump impeller is positioned between the fixed clamping block 110 and the movable clamping block 111. Then, the handwheel 113 is rotated, which drives the threaded rod 112 to rotate. Since the threaded rod 112 is threadedly engaged with the sleeve 114, the threaded rod 112 moves within the sleeve 114, and the movable clamping block 111 is driven to move until the movable clamping block 111 clamps and fixes the fire pump impeller.

[0025] Furthermore, the fixing component also includes a limiting block 115, which is movably connected to the plug-in bracket 106 and located between the plug-in bracket 106 and the turntable 108.

[0026] In this embodiment, the limiting block 115 on the plug-in bracket 106 can continuously compress the plug-in bracket 106 without requiring personnel to continuously pull the plug-in bracket 106.

[0027] Furthermore, the fixing component also includes two arc blocks 116, both of which are fixedly connected to the plug-in frame 106 and are located on the outer side wall of the plug-in frame 106.

[0028] In this embodiment, by providing the arc block 116 on the plug-in bracket 106, the plug-in bracket 106 can easily enter the limiting hole 109 of the U-shaped bracket 103 through the arc block 116, making operation convenient.

[0029] Furthermore, the lateral movement assembly includes two lead screws 118 and nuts 117, and two lead screws 118. The base 101 has two mounting slots 119, and each mounting slot 119 is rotatably provided with a lead screw 118. Each lead screw 118 nut 117 is threadedly engaged with the corresponding lead screw 118. The mounting plate 102 is fixedly connected to both lead screws 118 and nuts 117 and is located above the base 101.

[0030] In this embodiment, when the position of the mounting plate 102 needs to be adjusted, the motor 120 on the outside of the rectangular frame 104 is started. The motor 120 controls the lead screw 118 to rotate in the mounting groove 119. Since the nut 117 of the lead screw 118 is threadedly engaged with the lead screw 118, the nut 117 of the lead screw 118 will be driven to move laterally in the mounting groove 119. Then the mounting plate 102 moves accordingly. After the adjustment is appropriate, the rotation of the lead screw 118 is stopped.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A fixture for machining fire pump impellers, comprising a base, characterized in that, It also includes a fixing component, a traversing component, and a mounting plate. The traversing component is disposed above the base, the mounting plate is connected to the traversing component, and the fixing component is disposed above the mounting plate. The fixing assembly includes a U-shaped frame, a rectangular frame, a drive rod, a plug-in bracket, a spring, a turntable, and a limiting module. The U-shaped frame is fixedly connected to the mounting plate and located above the mounting plate. The rectangular frame is rotatably disposed within the U-shaped frame. The drive rod is connected to the rectangular frame and passes through the U-shaped frame. The turntable is fixedly connected to the drive rod. The plug-in bracket is movably connected to the turntable and passes through the turntable. The U-shaped frame has two limiting holes, and the plug-in bracket is also adapted to the two limiting holes. The two ends of the spring are fixedly connected to the plug-in bracket and the turntable, respectively. The limiting module is disposed on the U-shaped frame.

2. The fixture for machining fire pump impellers as described in claim 1, characterized in that, The limiting module includes a fixed clamping block, a movable clamping block, a threaded rod, a handwheel, and a sleeve. The fixed clamping block is fixedly connected to the rectangular frame and located on the inner side wall of the rectangular frame. The movable clamping block is located inside the rectangular frame. The sleeve is fixedly connected to the rectangular frame and passes through the rectangular frame. The threaded rod is threadedly engaged with the sleeve and passes through the sleeve. The handwheel is connected to the threaded rod.

3. The fixture for machining fire pump impellers as described in claim 2, characterized in that, The fixing component also includes a limiting block, which is movably connected to the plug-in bracket and located between the plug-in bracket and the turntable.

4. The fixture for machining fire pump impellers as described in claim 3, characterized in that, The fixing component also includes two arc blocks, both of which are fixedly connected to the plug frame and are located on the outer side wall of the plug frame.

5. The fixture for machining fire pump impellers as described in claim 1, characterized in that, The lateral movement assembly includes two lead screw nuts and two lead screws. The base has two mounting slots, and each mounting slot is rotatably equipped with a lead screw. Each lead screw nut is threadedly engaged with the corresponding lead screw. The mounting plate is fixedly connected to the two lead screw nuts and is located above the base.