CN212652541U

CN212652541U - Novel pump case broaching anchor clamps

Info

Publication number: CN212652541U
Application number: CN202021400697.9U
Authority: CN
Inventors: 黄卫华
Original assignee: Changsha Haoxin Industrial Equipment Co ltd
Current assignee: Changsha Haoxin Industrial Equipment Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-03-05
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a novel pump case broaching anchor clamps, its characterized in that: including die, pinhole, pin, location slider and terrace die, radial symmetry is equipped with the pinhole on the die, the pin is worn to be equipped with by the adaptation in the pinhole, the pin top is equipped with the location slider, the location slider with the die is the adaptation, press from both sides between die and the terrace die and be equipped with the pump case, terrace die and pump case inner wall connection. The utility model discloses the location slider, with terrace die and die cooperation, utilize numerical control finish machining to fix a position with a heart sky, make anchor clamps and work piece closely laminate together, punch forming with the hydraulic press; the purpose of the pin bolt is to simplify the design of the clamp and improve the practicability and stability of the clamp.

Description

Novel pump case broaching anchor clamps

Technical Field

The utility model belongs to the technical field of pump case parts machining technique and specifically relates to a novel pump case broaching anchor clamps are related to.

Background

The centrifugal pump (centrifugal pump) is a pump which conveys liquid by means of centrifugal force generated when an impeller rotates, and mechanical energy is transmitted to the liquid by means of blades due to interaction of the blades and the liquid in the rotating process of the rotating impeller, so that the pressure energy of the liquid is increased, and the purpose of conveying the liquid is achieved; the centrifugal pump has various forms such as vertical type, horizontal type, single stage, multistage, single suction, double suction, self suction and the like.

The pump casing of the centrifugal pump is a volute casing for containing and conveying liquid, and consists of a pump cover and a volute body, and the pump casing is a fixed part. The pump cover is a suction chamber of the pump, and is used for uniformly guiding water in the water suction pipe to the impeller with minimum loss, and the suction chamber can be divided into a straight conical suction chamber, an annular suction chamber and a semi-spiral suction chamber according to the structure; the volute body is composed of a volute chamber and a diffusion conical pipe, the volute chamber is mainly used for collecting water flow thrown out by an impeller and keeping the water flow speed in the volute chamber to be a constant by means of continuous increase of the water flow cross section of the volute chamber so as to reduce head loss, after the water is discharged from the volute chamber, the water flows through the diffusion conical pipe to flow into a pressure pipe, and the diffusion conical pipe is used for reducing the water flow speed and converting partial kinetic energy of the water flow into pressure energy. In the traditional pump case processing broaching process, a spring or a high-strength adhesive is used in a female die, the female die is tightly pushed, positioned and quickly closed for stamping, the spring has great limitation, a die cavity needs to be designed according to the size of a workpiece and the compression force of the spring and the space of an upper die for demoulding, the cavity can be greatly inflexible in operation, the workpiece needs to be marked by eyes and then stamped, the efficiency is low, the workpiece is easily set to be partially empty and pulled partially, and the workpiece is scrapped.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel pump case broaching anchor clamps.

The technical scheme of the utility model is that: the utility model provides a novel pump case broaching anchor clamps, includes die, pinhole, pin, location slider and terrace die, radial symmetry is equipped with the pinhole on the die, the pin is worn to be equipped with by the adaptation in the pinhole, the pin top is equipped with the location slider, the location slider with the die is the adaptation, press from both sides between die and the terrace die and be equipped with the pump case, terrace die and pump case inner wall connection.

Preferably, the die with the location slider is the setting of cylinder type logical chamber, just the die with the location slider is coaxial setting.

Preferably, an outer end face R angle of the water inlet end of the pump shell is matched with the R angle of the female die.

Preferably, the inner end surface R angle of the water inlet end of the pump shell is matched with the angle R of the male die.

Preferably, the male die is integrally formed, the upper part and the lower part of the male die are both cylinders, and the middle part of the male die is cage-shaped.

Preferably, the cylinder of the upper part of the male is longer than the cylinder of the lower part.

Preferably, the cylinder of the upper part of the male die is of equal diameter to the cylinder of the lower part.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the positioning slide block is matched with the male die and the female die, concentric and hollow positioning is carried out by utilizing numerical control finish machining, so that the clamp and the workpiece are tightly attached together, and the workpiece is subjected to punch forming by an oil press; the pin bolt aims to simplify the design of the clamp and improve the practicability and stability of the clamp;

(2) the positioning slide block is fixed on the wall of the female die through a pin instead of a spring, so that the space of a cavity is saved, materials are saved, the die is easy to remove after the processing is finished, the positioning is convenient and the operation is simple;

(3) the workpiece is not easy to be placed in a cavity and pulled off, so that the workpiece is scrapped, and the production efficiency and the product yield are greatly improved;

drawings

Fig. 1 is an exploded view of the structure of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in figure 1, the novel pump shell broaching fixture comprises a female die 1, a male die 2, a pump shell 3, a pin hole 4, a pin 5 and a positioning slide block 6.

The die 1 is radially and symmetrically provided with pin holes 4, pins 5 are inserted into the pin holes 4 in a matching manner, positioning sliders 6 are arranged above the pins 5, the positioning sliders are fixed on the walls of the die through pins instead of springs, cavity space is saved, materials are saved, demoulding is easy after processing, positioning is convenient and easy to operate, the positioning sliders 6 are matched with the die 1, the die 1 and the positioning sliders 6 are both arranged in a cylindrical through cavity, the die 1 and the positioning sliders 6 are coaxially arranged, a pump shell 3 is clamped between the die 1 and a male die 2, the male die 2 is connected with the inner wall of the pump shell 3, the positioning sliders 6 are matched with the male die 2 and the die 1, and concentric empty positioning is realized by numerical control finish machining, so that a clamp is tightly attached to a workpiece, and the workpiece; the purpose of the pin bolt is to simplify the design of the clamp and improve the practicability and stability of the clamp.

The outer end face R angle of the water inlet end of the pump shell 3 is matched with the R angle of the female die 1, and the inner end face R angle of the water inlet end of the pump shell 3 is matched with the R angle of the male die 2, so that size deviation of the pump shell 3 to be processed in the processing process can be reduced.

The male die 2 is integrally formed, the upper portion and the lower portion of the male die 2 are both cylinders, the middle portion of the male die 2 is in a cage shape, the cylinder on the upper portion of the male die 2 is longer than the cylinder on the lower portion, the diameter of the cylinder on the upper portion of the male die 2 is equal to that of the cylinder on the lower portion, the pull hole of the pump shell 3 to be processed can meet the qualified standard, and the pull hole can not be too long.

The utility model discloses a theory of operation does: the pin 5 penetrates into the pin hole 4, the positioning slide block 6 is installed in the female die 1, the positioning slide block 6 is abutted to the pin 5, the center of the outer end face of the pump shell 3 to be processed is placed on the positioning slide block 6, the male die 2 is placed, the male die 2 is matched with the female die 1, the male die 2 is positioned and processed, the numerical control finish machining and concentric empty positioning are utilized, the clamp and the to-be-processed part of the pump shell 3 are tightly attached together, the clamp and the to-be-processed part of the pump shell are formed by an oil press, the to-be-processed pump shell 3 is not prone to empty and inclined, workpieces are scrapped.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the right of the present invention should not be limited thereby, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.

Claims

1. The utility model provides a novel pump case broaching anchor clamps which characterized in that: including die (1), pinhole (4), pin (5), location slider (6) and terrace die (2), radial symmetry is equipped with pinhole (4) on die (1), pin (5) are worn to be equipped with by the adaptation in pinhole (4), pin (5) top is equipped with location slider (6), location slider (6) with die (1) is the adaptation, press from both sides between die (1) and terrace die (2) and be equipped with pump case (3), terrace die (2) and pump case (3) inner wall connection.

2. The novel pump casing broaching fixture of claim 1, wherein: die (1) with location slider (6) are the cylinder type and lead to the chamber setting, just die (1) with location slider (6) are coaxial setting.

3. The novel pump casing broaching fixture of claim 1, wherein: and the R angle of the outer end surface of the water inlet end of the pump shell (3) is matched with the R angle of the female die (1).

4. The novel pump casing broaching fixture of claim 1, wherein: and the R angle of the inner end surface of the water inlet end of the pump shell (3) is matched with the R angle of the male die (2).

5. The novel pump casing broaching fixture of claim 1, wherein: the male die (2) is integrally formed, the upper portion and the lower portion of the male die (2) are both cylinders, and the middle portion of the male die (2) is cage-shaped.

6. The novel pump casing broaching fixture of claim 5, wherein: the cylinder at the upper part of the male die (2) is longer than the cylinder at the lower part.

7. The novel pump casing broaching fixture of claim 6, wherein: the diameter of the cylinder at the upper part of the male die (2) is equal to that of the cylinder at the lower part.