Positioning device for impeller machining

Abstract

The utility model discloses a positioning device for impeller processing, which comprises a tool base, a central positioning groove is arranged on the upper surface of the tool base, a group of corresponding arc-shaped grooves are arranged on two side groove walls of the central positioning groove, a clamp is arranged in each groove, a screw is arranged in the center of the central positioning groove, and a screw is arranged in the screw. The screw is provided with a locking piece, a plurality of elastic stand columns are further arranged on the upper surface of the tool base, and the elastic stand columns are arranged in a circle along the periphery of the center positioning groove. When the impeller is accurately positioned and fixed, the impeller can be prevented from being subjected to circumferential force in the machining process, and workpiece rotation or displacement is avoided, so that the machining precision of the impeller is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of impeller processing, in particular to a positioning device used for impeller processing. Background Art

[0002] During the machining of the turbocharger impeller, the blade profile needs to be milled. New turbochargers generally use integral impellers with spatial curved surfaces, which have complex curved surface structures. Therefore, they need to be milled using a five-axis CNC machining center during the machining process. The previous integral blank is machined by removing material, and nearly one-third of the material needs to be removed. Since the removal of a large amount of material requires the use of large-diameter tools for rough machining, a certain circumferential force will be generated, which may cause the workpiece to rotate and affect the machining accuracy of the impeller. Therefore, the impeller needs to be positioned;

[0003] The traditional method is to directly position the impeller through the guide column, but this method has great limitations. First, the positioning effect is not good when only positioning is performed through the guide column, and the impeller often shifts during the processing. Summary of the invention

[0004] The purpose of the utility model is to provide a positioning device for impeller machining to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for impeller processing, comprising a tooling base, the upper surface of the tooling base is provided with a central positioning groove, the groove walls on both sides of the central positioning groove are provided with a group of corresponding arc-shaped grooves, each of the grooves is provided with a clamp, the center of the central positioning groove is provided with a screw, and the screw is equipped with a locking piece,

[0006] The upper surface of the tooling base is also provided with a plurality of elastic columns, and the plurality of elastic columns are arranged in a circle along the periphery of the central positioning groove.

[0007] Preferably, the clamp comprises a threaded push rod and an arc-shaped clamp block, and the threaded push rod and the arc-shaped clamp block are both installed in the groove;

[0008] One end of the threaded push rod passes through the groove and extends to the outside, and a handle is arranged on the side of the threaded rod, and the other end of the threaded push rod is transferred to the rear side of the arc-shaped clamping block.

[0009] Preferably, a rubber layer is provided on the front side of the arc-shaped clamping block.

[0010] Preferably, the locking member includes a washer and a locking nut.

[0011] Preferably, the elastic column is made of rubber material.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the utility model has a simple structure. When positioning the impeller, the impeller needs to be put on the screw. At this time, the bottom of the impeller is embedded in the center positioning groove. The worker rotates the handles on both sides to push the arc-shaped clamping blocks on both sides to clamp the bottom of the impeller. At the same time, the edge of the impeller will be tightly attached to the elastic column. Since the elastic column has a certain elasticity, it fits perfectly with the edge of the impeller, which can not only increase the friction and prevent the impeller from shifting, but also reduce the vibration generated during large-diameter tool processing.

[0013] In summary, the positioning device provided by the utility model can not only realize the precise positioning and fixation of the impeller, but also prevent the impeller from being subjected to circumferential force during the processing, thereby preventing the workpiece from rotating or shifting, thereby ensuring the processing accuracy of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the tooling base of the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-2 The utility model provides a technical solution: a positioning device for impeller processing, comprising a tooling base 1, a central positioning groove 11 is provided on the upper surface of the tooling base 1, and a group of corresponding arc-shaped grooves 12 are provided on the groove walls on both sides of the central positioning groove 11, and then a group of clamps 2 are taken and installed in the corresponding grooves 12,

[0018] In addition, a screw 13 is arranged at the center of the central positioning groove 11. The screw 13 is equipped with a locking member 3. The locking member 3 includes a washer 31 and a locking nut 32.

[0019] The upper surface of the tooling base 1 is also provided with a plurality of elastic columns 4 made of rubber material. The plurality of elastic columns 4 are arranged in a circle along the periphery of the central positioning groove 11. The circle surrounded by the plurality of elastic columns 4 is equivalent to the raised anti-slip structure on the tooling base 1. When the edge of the impeller fits on the elastic column, it can not only increase the friction but also reduce shock.

[0020] In this embodiment, the clamp 2 includes a threaded push rod 21 and an arc-shaped clamp block 22, wherein a rubber layer 221 is provided on the front side of each arc-shaped clamp block 22;

[0021] Then install the threaded push rod 21 and the arc-shaped clamp block 22 in the groove 12. The specific installation structure is as follows;

[0022] One end of the threaded push rod 21 is extended to the outside through the groove 12, and a handle 23 is provided on the side of the threaded push rod 21. Then the arc clamping block 22 is embedded in the groove 12, and the rear side of the arc clamping block 22 is transferred to the other end of the threaded push rod 21.

[0023] The positioning device provided by the utility model is used to position the impeller. The specific operation steps are as follows: the impeller is sleeved onto the screw rod. At this time, the bottom of the impeller is embedded in the central positioning groove, and the edge of the impeller is tightly attached to the elastic column. Then the worker sleeves the gasket onto the screw rod. At this time, the gasket is attached to the top of the impeller, and then the top of the screw rod is locked with a nut;

[0024] Then the worker rotates the handles on both sides to push the arc-shaped clamps on both sides to further clamp the bottom of the impeller, thereby achieving precise positioning and fixation of the impeller.

[0025] 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 positioning device for impeller machining, comprising a tooling base (1), characterized in that: The upper surface of the tooling base (1) is provided with a central positioning groove (11), and the groove walls on both sides of the central positioning groove (11) are provided with a group of corresponding arc-shaped grooves (12), each of the grooves (12) is provided with a clamp (2), and the center of the central positioning groove (11) is provided with a screw (13), and the screw (13) is equipped with a locking member (3). The upper surface of the tooling base (1) is also provided with a plurality of elastic columns (4), and the plurality of elastic columns (4) are arranged in a circle along the periphery of the central positioning groove (11).

2. A positioning device for impeller machining according to claim 1, characterized in that: The clamp (2) comprises a threaded push rod (21) and an arc-shaped clamp block (22), and the threaded push rod (21) and the arc-shaped clamp block (22) are both installed in the groove (12); One end of the threaded push rod (21) passes through the groove (12) and extends to the outside, and a handle (23) is provided on the side of the threaded push rod (21), and the other end of the threaded push rod (21) is connected to the rear side of the arc-shaped clamping block (22).

3. A positioning device for impeller machining according to claim 2, characterized in that: A rubber layer (221) is provided on the front side of the arc-shaped clamping block (22).

4. A positioning device for impeller machining according to claim 1, characterized in that: The locking member (3) comprises a gasket (31) and a locking nut (32).

5. A positioning device for impeller machining according to claim 1, characterized in that: The elastic column (4) is made of rubber material.

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