Metal pump body shell machining clamp

Abstract

The utility model discloses a metal pump body shell machining clamp, which relates to the technical field of machining, and comprises a bottom plate, stand columns are distributed above the bottom plate, a top plate is arranged at the upper ends of the stand columns, a limiting pin is arranged behind the top plate, drill bushings are distributed on the top plate in a surrounding manner, eccentric parts are arranged on the stand columns on the two sides in front, and the eccentric parts are arranged on the top plate. And a screwing part is arranged in the middle of the bottom plate. The drilling machine has the advantages of being compact in structure, easy and convenient to operate, accurate in positioning, high in adaptability, high in stability, good in safety, capable of improving efficiency, easy to maintain, capable of reducing interference, accurate in guiding and the like, the pump shell can be rapidly fixed by simplifying the setting process and improving the positioning accuracy and stability, safety and accuracy in the drilling process are guaranteed, and the drilling efficiency is improved. Meanwhile, the operation complexity and the maintenance difficulty are reduced, and the production efficiency and the machining quality are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a machining fixture for a metal pump body shell. Background Technique

[0002] The function of the pump shell is to collect the liquid thrown by the inner impeller, and at the same time convert part of the kinetic energy of the high-speed liquid into static pressure energy. During the machining process of the pump shell, drilling is required to facilitate the subsequent assembly of the pump shell. At present, according to the structural characteristics of the pump shell, those skilled in the art will design different fixtures according to the situation to perform drilling operations to improve efficiency and accuracy. For example, the authorized patent CN201821169350.0, a drilling positioning fixture for a water pump shell, can well solve the drilling operation. Most of the pump shells are cast, and then the outer circle of the flange will be turned, and then the drilling operation will be carried out. The outer circle of the flange can be used as the base surface for clamping and machining. Therefore, a special drilling fixture is designed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a machining fixture for a metal pump body shell to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A machining fixture for a metal pump body shell, including a bottom plate, columns are distributed above the bottom plate, a top plate is provided at the upper end of the columns, a limit pin is provided behind the top plate, drill sleeves are distributed around the top plate, eccentric parts are provided on the two front columns, and a tightening part is provided in the middle of the bottom plate.

[0005] Further: The eccentric part includes an eccentric sleeve, the eccentric sleeve is sleeved on the column, a short rod is inserted into the side wall of the eccentric sleeve, and a spring is provided below the eccentric sleeve, and the spring is sleeved on the column.

[0006] Further: The tightening part includes a tightening seat and a screw sleeve, the screw sleeve is fixedly connected to the center of the bottom plate, a screw column is provided at the center of the tightening seat, the screw column is matched with the screw sleeve, and a tightening handle is inserted on the side of the tightening seat.

[0007] Preferably: At least two limit pins are provided and are distributed on the left and right sides of the top plate.

[0008] Preferably: Mounting holes are provided on the bottom plate, and positioning pins are provided below the bottom plate.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model has the advantages of compact structure, simple operation, accurate positioning, strong adaptability, high stability, good safety, improved efficiency, easy maintenance, reduced interference, and precise guidance. By simplifying the setting process, improving the positioning accuracy and stability, it can quickly fix the pump casing, ensure the safety and accuracy of the drilling process, while reducing the operation complexity and maintenance difficulty, and effectively improving the production efficiency and processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is a front view of the present utility model;

[0012] Figure 3 is a schematic A-A sectional view;

[0013] Figure 4 is a schematic B-B sectional view;

[0014] Figure 5 is a working diagram of the present utility model;

[0015] Figure 6 is an enlarged schematic view at C.

[0016] In the figure: 1, bottom plate; 2, column; 3, top plate; 4, limit pin; 5, drill bushing; 6, eccentric part; 7, tightening part; 8, spring; 9, positioning pin; 10, pump casing; 601, eccentric sleeve; 602, short rod; 701, tightening seat; 702, screw sleeve; 703, tightening handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will describe the present utility model in combination with the drawings in the embodiments of the present utility model. The following description is based on the embodiments, but it should be noted that the present utility model is not limited to these embodiments. In the following detailed description of the present utility model, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present utility model.

[0018] In addition, those of ordinary skill in the art should understand that the provided drawings are only for illustrating the purpose, features and advantages of the present utility model, and the drawings are not actually drawn to scale.

[0019] At the same time, unless the context clearly requires, the words such as "including" and "comprising" in the whole specification and claims should be interpreted as the meaning of including rather than exclusive or exhaustive meaning; that is, the meaning of "including but not limited to".

[0020] Please refer to Figures 1-6The utility model provides a technical solution: it includes a bottom plate 1, a column 2 is distributed above the bottom plate 1, a top plate 3 is provided at the upper end of the column 2, a limit pin 4 is provided behind the top plate 3, a drill sleeve 5 is distributed around the top plate 3, an eccentric part 6 is provided on the two side columns 2 in the front, and a tightening part 7 is provided in the middle of the bottom plate 1.

[0021] The eccentric part 6 includes an eccentric sleeve 601 , which is sleeved on the column 2 , and a short rod 602 is inserted into the side wall of the eccentric sleeve 601 . A spring 8 is provided below the eccentric sleeve 601 , and the spring 8 is sleeved on the column 2 .

[0022] The tightening portion 7 includes a tightening seat 701 and a screw sleeve 702 . The screw sleeve 702 is fixedly connected to the center of the bottom plate 1 . A stud is provided at the center of the tightening seat 701 . The stud cooperates with the screw sleeve 702 . A tightening handle 703 is inserted at the side of the tightening seat 701 .

[0023] At least two limit pins 4 are provided and are distributed on the left and right sides of the top plate 3 .

[0024] The bottom plate 1 is provided with a mounting hole, and a positioning pin 9 is provided below the bottom plate 1 .

[0025] When using the utility model, the base plate 1 is set on the workbench of the drilling rig through the existing fastening parts, and then the worker places the pump casing 10 on the tightening seat 701. The maximum diameter of the flange above the pump casing 10 is smaller than the distance between the outer walls of the two columns 2. During the placement of the flange, the eccentric sleeve 601 needs to be pressed down to prevent interference until the pump casing 10 is completely placed on the tightening seat 701, and then the tightening handle 703 is turned to make the tightening seat 701 rise to stabilize the upper and lower ends, and then the eccentric sleeves 601 on both sides are reset and raised due to the action of the spring 8, and then the existing long steel pipe is used to sleeve the short rod 602 and pull the eccentric sleeve 601 to squeeze the flange edge and lock it, and the limit pin 4 and the eccentric sleeve 601 are used to limit the four points, and finally the drilling can be carried out through the guide of the drill sleeve 5 by turning the head, and the operation is relatively convenient and fast.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal pump shell processing fixture, characterized in that: The invention comprises a bottom plate (1), a column (2) is arranged above the bottom plate (1), a top plate (3) is arranged at the upper end of the column (2), a limit pin (4) is arranged behind the top plate (3), a drill sleeve (5) is arranged around the top plate (3), an eccentric part (6) is arranged on the two side columns (2) at the front, and a tightening part (7) is arranged in the middle of the bottom plate (1).

2. A metal pump housing processing fixture according to claim 1, characterized in that: The eccentric part (6) comprises an eccentric sleeve (601), the eccentric sleeve (601) is sleeved on the column (2), a short rod (602) is inserted into the side wall of the eccentric sleeve (601), a spring (8) is provided below the eccentric sleeve (601), and the spring (8) is sleeved on the column (2).

3. A metal pump housing processing fixture according to claim 1, characterized in that: The tightening portion (7) comprises a tightening seat (701) and a screw sleeve (702), wherein the screw sleeve (702) is fixedly connected to the center of the bottom plate (1), a stud is provided at the center of the tightening seat (701), the stud cooperates with the screw sleeve (702), and a tightening handle (703) is inserted on the side of the tightening seat (701).

4. A metal pump housing processing fixture according to claim 1, characterized in that: At least two limit pins (4) are provided and are distributed on the left and right sides of the top plate (3).

5. A metal pump shell processing fixture according to claim 1, characterized in that: A mounting hole is provided on the base plate (1), and a positioning pin (9) is provided below the base plate (1).

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