Volute machining and positioning tool

Abstract

The utility model discloses a volute machining positioning tool which comprises a machining machine frame, the machining machine frame is a frame of a rectangular structure, a fixing plate is arranged on the machining machine frame, a rotating base is arranged on the fixing plate, a mechanical chuck is arranged on the rotating base, and a telescopic positioning mechanism is arranged on the rotating base. According to the volute machining positioning tool, in the volute machining process, in order to solve the problem that in the volute machining process, vibration is generated when a machining head conducts volute machining, and consequently the precision of volute machining is insufficient, after indexing rotation of the indexing rotating assembly is completed, the indexing rotating assembly can rotate in the volute machining process, and therefore the machining precision of the volute is improved. And through the telescopic effect of the telescopic positioning mechanism, the limiting clamping block is in friction engagement with the limiting ring, limiting of the mechanical chuck is achieved, and the situation that the machining precision is affected due to vibration of the mechanical chuck is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of volute machining technology, specifically is a volute machining positioning frock. BACKGROUND

[0002] In the modern volute machining process, in order to guarantee the blanking precision of machining tool in the volute processing process, the volute needs to be fixed, and the posture of the volute is kept, and the fixing of the volute at the present stage mainly adopts the fixing mode of chuck.

[0003] In the machining process of the turbine shell at the present stage, in order to cooperate with the positioning of the volute machining tool, the fixed chuck of the turbine shell needs to have a rotating effect, however, the turbine chuck at the present stage is driven by the structure of gear box due to the rotating demand, however, in order to guarantee that the meshing position is not too tight during rotation, there is usually a small meshing allowance between the gears, but such a small meshing allowance will cause slight vibration when the machining head rotates and touches the workpiece, resulting in low workpiece machining precision, in view of this, the above problems are deeply researched, and the case is generated. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a volute machining positioning frock, which solves the problems of the prior art.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a volute machining positioning frock, comprising a machining machine frame, the machining machine frame is a rectangular structure frame, a fixed plate is arranged on the machining machine frame, a rotating base is arranged on the fixed plate, a mechanical chuck is arranged on the rotating base, and a telescopic positioning mechanism is arranged on the rotating base.

[0006] The bottom of the rotating base is provided with a dividing rotation assembly, and the dividing rotation assembly is connected with the mechanical chuck.

[0007] The telescopic positioning mechanism comprises a telescopic slot, the telescopic slot is formed in the rotating base, a telescopic mounting seat is arranged in the lower part of the telescopic slot in correspondence, an electromagnet is arranged at the bottom of the telescopic mounting seat, a telescopic piston is assembled in the telescopic mounting seat, a telescopic control magnet is fixedly arranged on the telescopic piston, and a telescopic counteracting spring is embedded in the telescopic mounting seat and in contact with the telescopic piston.

[0008] One side of the telescopic piston is provided with a telescopic plug rod, the telescopic plug rod is matched with the telescopic slot, a positioning clamping block is arranged on the telescopic plug rod, and the bottom surface of the mechanical chuck is provided with a limiting ring.

[0009] Preferably, the machining machine frame is a rectangular structure frame, the bottom surface of the machining machine frame is provided with two pairs of supporting legs, and a switch door is arranged on one side of the machining machine frame.

[0010] Preferably, the positioning block is a ramp-structured plate, and the side edge of the limiting ring is a slope structure matched with the positioning block.

[0011] Preferably, the top of the telescopic mounting base is provided with a connecting flange connected with the bottom surface of the telescopic groove.

[0012] Preferably, the telescopic piston is a column-structured plate, and the diameter of the telescopic piston is matched with the inner diameter of the telescopic mounting base.

[0013] Preferably, the indexing rotation assembly comprises an indexing motor, the indexing motor is arranged in the machining machine frame, the drive end of the indexing motor is connected with an indexing gear, the bottom surface of the mechanical chuck is provided with a coaxial gear, and the coaxial gear is engaged with the indexing gear.

[0014] Beneficial effects

[0015] The utility model provides a volute machining positioning frock. Have the following beneficial effects: this volute machining positioning frock, in the volute machining process, in order to avoid the vibration of the machining head to the volute machining, leads to the problem of the insufficient precision of volute machining, and then the above-mentioned indexing rotation assembly is engaged with the limiting ring through the telescopic action of the telescopic positioning mechanism after indexing rotation is completed, realizes the limiting of mechanical chuck, avoids the vibration of mechanical chuck and influences the machining precision. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is first three-dimensional structure schematic view of volute machining positioning frock of the utility model.

[0017] Fig. 2 It is second three-dimensional structure schematic view of volute machining positioning frock of the utility model.

[0018] Fig. 3 It is partial sectional view structure schematic view of volute machining positioning frock of the utility model.

[0019] In the drawing: 1, machining machine frame;2, fixed plate;3, rotation base;4, mechanical chuck;5, telescopic positioning mechanism;6, indexing rotation assembly;51, telescopic mounting base;52, electromagnet;53, telescopic piston;54, telescopic control magnet;55, telescopic counteracting spring;56, telescopic inserting rod;57, positioning block;58, limiting ring;61, indexing motor;62, indexing gear;63, coaxial gear. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-3 The present application provides an implementation scheme: in the processing of modern turbine shell, the turbine chuck is driven by the structure of gear box due to the rotation requirement, however, in order to ensure that the meshing position is not too tight during rotation, there is usually a small meshing allowance between the gears, but such a small meshing allowance will cause slight vibration when the processing head and the workpiece are in contact and the processing head rotates and touches the workpiece, resulting in low workpiece processing precision.

[0022] In view of the above problems, according to the drawings attached to the specification Figs. 1-3 It can be known that the present application discloses a vortex shell processing positioning tool, which comprises a processing machine frame 1, wherein the processing machine frame 1 is a rectangular frame, a fixed plate 2 is arranged on the processing machine frame 1, the fixed plate 2 is a CNC processed equipment table, a rotary base 3 is arranged on the fixed plate 2, a mechanical chuck 4 is arranged on the rotary base 3, the rotary base 3 supports and installs the mechanical chuck 4, the bottom of the rotary base 3 is provided with a dividing rotation assembly 6, the dividing rotation assembly 6 is connected with the mechanical chuck 4, the mechanical chuck 4 is adjusted in a dividing rotation manner through the dividing rotation assembly 6, so as to adjust the angle and position of the vortex shell clamped by the mechanical chuck 4, and the mechanical chuck 4 is prevented from being damaged.

[0023] Further, in order to avoid the gear gap from shaking during the dividing process of the dividing rotation assembly 6, a telescopic positioning mechanism 5 is arranged on the rotary base 3, the mechanical chuck 4 can be limited through the telescopic positioning mechanism 5, so that the position of the mechanical chuck 4 is kept stable after the angle adjustment of the mechanical chuck 4 is completed, and vibration or micro-motion caused by the touch of the processing head is avoided.

[0024] Specifically, according to the drawings attached to the specification Figs. 1-3 It can be known that the telescopic positioning mechanism 5 comprises a telescopic groove, the telescopic groove is arranged on the rotary base 3, a telescopic mounting seat 51 is arranged at the lower part of the telescopic groove in correspondence, an electromagnet 52 is arranged at the bottom of the telescopic mounting seat 51, a telescopic piston 53 is assembled in the telescopic mounting seat 51, a telescopic control magnet 54 is fixedly arranged on the telescopic piston 53, a telescopic counter-pushing spring 55 is embedded in the telescopic mounting seat 51 and is in contact with the telescopic piston 53, a positioning clamping block 57 is arranged on a telescopic plug rod 56, and a limiting ring 58 is arranged on the bottom surface of the mechanical chuck 4.

[0025] In the specific implementation process, one side of the telescopic piston 53 is provided with a telescopic plug 56 matched with the telescopic slot. The telescopic plug 56 is controlled by the electromagnet 52 as a control power device. When the indexing rotating assembly 6 works, the electromagnet 52 generates an attractive force to move the telescopic control magnet 54 by the electromagnetic force, so that the telescopic control magnet 54 moves towards the electromagnet 52 along the telescopic mounting seat 51. The telescopic piston 53 is further driven to move the telescopic plug 56, so that the telescopic plug 56 drives the positioning clamping block 57 to separate from the limiting ring 58, and the telescopic plug 56 is separated from the limiting of the mechanical chuck 4. When the indexing rotating assembly 6 stops working, the electromagnet 52 is reversely connected to the power supply, the telescopic control magnet is reversely pushed by the electromagnetic force, and the telescopic control magnet is pushed by the telescopic control magnet. The telescopic piston 53 is driven by the telescopic piston 53, so that the positioning clamping block 57 is in contact with the limiting ring 58. The friction between the two relative positions fixes the positioning clamping block 57 to the limiting ring 58, so that the indexing rotating assembly 6 is prevented from being affected by vibration.

[0026] As a preferred solution, further, the machining frame 1 is a rectangular frame, the bottom surface of the machining frame 1 is provided with two pairs of supporting legs, and one side of the machining frame 1 is provided with a switch door. The supporting legs support the machining frame 1, and the switch door opens the machining frame 1, so that the indexing rotating assembly 6 and the telescopic positioning mechanism 5 are convenient to maintain.

[0027] As a preferred solution, further, the positioning clamping block 57 is a slope structure plate, and the side of the limiting ring 58 is a slope structure matched with the positioning clamping block 57. The slope structure increases the contact area between the positioning clamping block 57 and the limiting ring 58.

[0028] As a preferred solution, further, the top of the telescopic mounting seat 51 is provided with a connecting flange connected with the bottom surface of the telescopic slot. The connecting flange connects the telescopic mounting seat 51 to the bottom surface of the telescopic slot, so that the telescopic mounting seat 51 is convenient to disassemble and maintain.

[0029] As a preferred solution, further, the telescopic piston 53 is a cylindrical structure plate, and the diameter of the telescopic piston 53 is matched with the inner diameter of the telescopic mounting seat 51.

[0030] As a preferred solution, further, according to the description attached Figs. 1-3 It can be known that the above-mentioned indexing rotating assembly 6 comprises an indexing motor 61. The indexing motor 61 is arranged in the machining frame 1. The drive end of the indexing motor 61 is connected with an indexing gear 62. The bottom surface of the mechanical chuck 4 is provided with a coaxial gear 63 matched with the indexing gear 62.

[0031] In the implementation process, the indexing motor 61 drives the indexing gear 62 to rotate, and then the indexing gear 62 meshes with the coaxial gear 63, and then the coaxial gear 63 drives the mechanical chuck 4 to rotate, so that the mechanical chuck 4 rotates by indexing, facilitating the use and adjustment of the mechanical chuck 4.

[0032] In summary, the volute machining positioning tool can avoid the vibration of the machining head on the volute machining, thereby avoiding the problem of insufficient machining precision of the volute, and after the indexing rotation of the indexing rotation assembly 6 is completed, the telescopic positioning mechanism 5 is telescoped to make the limiting block and the limiting ring 58 frictionally engage, thereby limiting the mechanical chuck 4 and avoiding the vibration of the mechanical chuck 4 to affect the machining precision.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A volute machining positioning tool, comprising a machining machine frame (1), the machining machine frame (1) is a rectangular structure frame, a fixed plate (2) is arranged on the machining machine frame (1), a rotating base (3) is arranged on the fixed plate (2), and a mechanical chuck (4) is arranged on the rotating base (3), characterized in that, The telescopic positioning mechanism (5) is arranged on the rotating base (3); The bottom of the rotating base (3) is provided with a indexing rotating assembly (6), which is connected with the mechanical chuck (4); The telescopic positioning mechanism (5) comprises a telescopic slot, the telescopic slot is arranged on the rotating base (3), the bottom of the telescopic slot is provided with a telescopic mounting seat (51), the bottom of the telescopic mounting seat (51) is provided with an electromagnet (52), the telescopic mounting seat (51) is assembled with a telescopic piston (53), the telescopic piston (53) is fixedly provided with a telescopic control magnet (54), the telescopic mounting seat (51) is embedded with a telescopic counteracting spring (55) in contact with the telescopic piston (53); One side of the telescopic piston (53) is provided with a telescopic plug rod (56), the telescopic plug rod (56) is matched with the telescopic slot, the telescopic plug rod (56) is provided with a positioning clamping block (57), the bottom surface of the mechanical chuck (4) is provided with a limiting ring (58).

2. A positioning tool for processing a volute according to claim 1, characterized in that, The processing machine frame (1) is a rectangular frame, the bottom surface of the processing machine frame (1) is provided with two pairs of supporting legs, one side of the processing machine frame (1) is provided with a switch door.

3. A positioning tool for processing a volute according to claim 2, characterized in that, The positioning clamping block (57) is a slope structure plate, the side of the limiting ring (58) is a slope structure matched with the positioning clamping block (57).

4. A positioning tool for processing a volute according to claim 3, characterized in that, The top of the telescopic mounting seat (51) is provided with a connecting flange, the connecting flange is connected with the bottom surface of the telescopic slot.

5. A volute machining positioning fixture according to claim 4, wherein The telescopic piston (53) is a cylindrical structure plate, the diameter of the telescopic piston (53) is matched with the inner diameter of the telescopic mounting seat (51).

6. A volute machining positioning tooling as claimed in claim 5, wherein, The indexing rotating assembly (6) comprises an indexing motor (61), the processing machine frame (1) is provided with the indexing motor (61), the drive end of the indexing motor (61) is connected with an indexing gear (62), the bottom surface of the mechanical chuck (4) is provided with a coaxial gear (63), the coaxial gear (63) is engaged with the indexing gear (62).

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