CN212793023U - Centrifugal pump shell processing device - Google Patents

Abstract

The utility model provides a centrifugal pump casing processingequipment includes the lathe, installs knife rest and anchor clamps on the lathe, the lathe includes the main shaft and installs the chuck on the main shaft, anchor clamps are including pressing from both sides the anchor clamps body, disc and the closing device of pressing from both sides tight in the chuck, the upper and lower both ends of the anchor clamps body have round platform and lower round platform, the disc passes through the mounting screw on last round platform, closing device includes clamp plate and compression screw, will wait to process the casing through closing device and compress tightly between chuck and clamp plate. The utility model discloses centrifugal pump shell processingequipment is through increasing anchor clamps between the chuck and waiting to process the casing to this solves the clamping difficult problem of hole or tang diameter and is less than 200 mm's centrifugal pump shell on vertical lathe, and the clamping rigidity is strong, can satisfy the requirement of size precision, form and position tolerance, roughness, improves production efficiency, reduction in production cost.

Description

Centrifugal pump shell processing device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a parts machining technical field, in particular to centrifugal pump casing processingequipment.

[ background of the invention ]

The working table of the vertical lathe used by the current pump industry factory is at least 800mm, and the minimum diameter of the inner hole of the part which can be tightened by four claws on the chuck is more than 200 mm. The centrifugal pump shell is an eccentric part, and the machining of a through hole or a spigot, an end face and an inlet flange of the centrifugal pump shell is usually completed on a vertical lathe, but the centrifugal pump shell cannot be machined on a vertical lathe because the diameter of the through hole or the spigot is less than 200mm, and is usually machined on a horizontal lathe. When the shell end face and the via hole or the spigot are machined on a horizontal lathe, the centrifugal pump shell is an eccentric part, meanwhile, a balance device is difficult to install on a horizontal lathe chuck, the distance from a clamping inlet flange to a cantilever of the shell end face is long, the clamping rigidity is poor, a workpiece is easy to vibrate when rotating, and the size precision, the form and position tolerance and the surface roughness of the centrifugal pump shell end face and the via hole or the spigot are difficult to guarantee. In order to meet the requirements of size precision, form and position tolerance and surface roughness of the end face of the shell and the through hole or spigot, the rotating speed of a workpiece needs to be reduced, and clamping and turning need to be carried out more than 3 times. Therefore, the clamping and alignment for multiple times are time-consuming, the machining precision is low, the efficiency is low, and the manufacturing cost is increased.

Therefore, the problem to be solved in the field is to provide a machining device for a centrifugal pump shell with a hole or a spigot with the diameter smaller than 200 mm.

[ Utility model ] content

To the above problem, the utility model discloses centrifugal pump shell processingequipment is through increasing anchor clamps between the chuck and waiting to process the casing to this solves the clamping difficult problem of the centrifugal pump shell that hole or tang diameter are less than 200mm on vertical lathe, and the clamping rigidity is strong, can satisfy size precision, form and position tolerance, roughness's requirement, improves production efficiency, reduction in production cost.

In order to solve the problem, the utility model discloses centrifugal pump shell processingequipment includes the lathe, installs knife rest and anchor clamps on the lathe, the lathe includes the main shaft and installs the epaxial chuck of main, anchor clamps are including pressing from both sides the anchor clamps body, disc and the closing device of pressing from both sides tight in the chuck, the upper and lower both ends of the anchor clamps body have round platform and lower round platform, the disc passes through the mounting screw on last round platform, closing device includes clamp plate and clamp bolt, will wait to process the casing and compress tightly between chuck and clamp plate through closing device.

Furthermore, the pressing plate is of a structure shaped like a Chinese character 'jing' and is placed on the upper end face of the shell to be processed, four pressing bolts are respectively connected to four corners of the pressing plate, and nuts are connected to the pressing bolts after the pressing bolts penetrate through the pressing plate.

Further, one end of the pressing bolt is screwed on the chuck.

Furthermore, the utility model discloses centrifugal pump shell processingequipment is through increasing anchor clamps between the chuck and treating to process the casing to this solves the hole or tang diameter and is less than the difficult problem of 200 mm's centrifugal pump shell clamping on vertical lathe, and the clamping rigidity is strong, can satisfy size precision, form and position tolerance, roughness's requirement, improves production efficiency, reduction in production cost.

[ description of the drawings ]

Fig. 1 is a clamping schematic diagram of the processing device for the centrifugal pump housing of the present invention.

Fig. 2 is a top view of the hold-down device in the processing device of the centrifugal pump casing of the utility model.

[ detailed description ] embodiments

The directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are only used for explaining and explaining the present invention, but not for limiting the scope of the present invention.

Referring to fig. 1 to 2, the component structure of the processing device for the centrifugal pump housing of the present invention is shown, which comprises a machine tool 1, a tool rest 2 mounted on the machine tool, and a clamp 3. The machine tool 1 is a vertical machine tool, and includes a spindle and a chuck 101 mounted on the spindle. The clamp 3 comprises a clamp body 301 clamped in the chuck 101, and an upper circular truncated cone 302 and a lower circular truncated cone 303 are arranged at the upper end and the lower end of the clamp body 301. The fixture 3 further comprises a disc 304, the disc 304 is mounted on the upper circular truncated cone 302 through screws, and discs 304 of different sizes are designed according to centrifugal pump housings of different sizes, so that machining requirements of various product sizes are met. The fixture body is arranged on a chuck 102 of the machine tool 1 through a lower circular table 303 of the fixture body, and is positioned and clamped through four claws on the chuck 102. The clamp 3 further comprises a pressing device 305 which comprises a pressing plate 3051 and four pressing bolts 3052, wherein the pressing plate 3051 is of a structure shaped like a Chinese character 'jing', and is placed on the upper end face of the shell to be processed, the four pressing bolts 3052 are respectively connected to four corners of the pressing plate 3051 and penetrate through the pressing plate to be connected with nuts. When the centrifugal pump shell is clamped, the lower end of the shell is sleeved on the disc 304, one end of the compression bolt 3052 is screwed on the chuck 101, and then the nut at the end of the compression bolt is screwed, so that the shell to be processed is compressed between the pressing plate and the chuck.

The utility model discloses centrifugal pump shell processingequipment is through increasing anchor clamps between the chuck and waiting to process the casing to this solves the clamping difficult problem of hole or tang diameter and is less than 200 mm's centrifugal pump shell on vertical lathe, and the clamping rigidity is strong, can satisfy the requirement of size precision, form and position tolerance, roughness, improves production efficiency, reduction in production cost.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1. The centrifugal pump shell machining device is characterized by comprising a machine tool (1), a tool rest (2) and a clamp (3), wherein the tool rest (2) and the clamp (3) are mounted on the machine tool, the machine tool (1) comprises a main shaft and a chuck (101) mounted on the main shaft, the clamp (3) comprises a clamp body (301) clamped in the chuck (101), a disc (304) and a pressing device (305), the upper end and the lower end of the clamp body (301) are provided with an upper round table (302) and a lower round table (303), the disc (304) is mounted on the upper round table (302) through screws, the pressing device (305) comprises a pressing plate (3051) and a pressing bolt (3052), and a shell to be machined is pressed between the disc (304) and the pressing plate through the pressing device.

2. The centrifugal pump casing processing device according to claim 1, wherein the pressure plate (3051) is of a structure like a Chinese character 'jing', and is placed on the upper end face of the casing to be processed, the four pressure bolts (3052) are respectively connected to the four corners of the pressure plate (3051), and nuts are connected after the pressure plate passes through the four pressure bolts.

3. Centrifugal pump housing machining apparatus according to claim 1, characterized in that one end of the hold-down bolt (3052) is screwed to the chuck (101).

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