Impeller machining clamp with material overturning function

Abstract

The utility model relates to a kind of impeller processing clamps with material turning function in the technical field of impeller processing, including base, the positioning table of being equipped with to the positioning of workpiece in the middle part of base top surface, the stepped hole of being equipped with in the middle part of positioning table upper big lower small;Further include: mounting shaft, the necked threaded section with radial through-hole of outer end portion is equipped in the both ends of mounting shaft, and necked threaded section is screwed with compression nut;The necked threaded section of mounting shaft lower end is screwed in stepped hole small diameter section, and its compression nut is located in the inner cavity of stepped hole large diameter section;The utility model is in situ overturning of impeller on clamp by the cooperation of vertically overturning mechanism, plug rod and mounting shaft of symmetrical arrangement, solve the problem of traditional technology using crane to hang off workpiece to turn over (crane waits and moves at low speed), greatly shorten material turning time, while eliminating the risk of blade damage in hoisting process.

Description

Technical Field

[0001] This utility model relates to the field of impeller processing technology, and in particular to an impeller processing fixture with a material turning function. Background Technology

[0002] Large impellers are typically large-sized impellers and are key components in fluid machinery. Their precision and performance directly affect the operating efficiency and service life of the entire equipment. During the impeller machining process, frequent turning or milling is required.

[0003] However, while existing impeller positioning fixtures can guarantee positioning accuracy and stability, they lack the function of flipping the impeller. When it is necessary to flip the impeller, a crane is often used to lift the impeller away from the fixture, and then after flipping it from the outside, it is lifted back into the fixture for positioning and clamping. This method is not only time-consuming (the crane travels slowly, and sometimes it is necessary to wait for the crane to be idle), but using a crane to flip the material can also easily cause damage to the blades (which have relatively low strength) in the impeller.

[0004] To address this, we designed an impeller machining fixture with a material turning function. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses an impeller processing fixture with a material turning function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A jig for machining impellers with a tilting function includes a base, a positioning platform for positioning the workpiece is provided in the center of the top surface of the base, and a stepped hole with a larger upper section and a smaller lower section is provided in the center of the positioning platform; it also includes:

[0008] The mounting shaft has necked thread sections with radial through holes at both ends, and clamping nuts are screwed onto the necked thread sections; the necked thread section at the lower end of the mounting shaft is screwed onto the small diameter section of the stepped hole, and the clamping nut on it is located in the inner cavity of the large diameter section of the stepped hole.

[0009] Two vertical flipping mechanisms are symmetrically arranged at both ends of the base, and the flipping parts at both ends have mating holes corresponding to the radial through holes at both ends of the mounting shaft;

[0010] Two insert rods are capable of being inserted into and mating with radial through holes and mating holes located on the same axis;

[0011] The vertical flipping mechanism includes a telescopic device for driving the flipping part to rise and fall.

[0012] Furthermore, the vertical flipping mechanism includes:

[0013] A vertical guide rail is provided at the end of the base;

[0014] The mounting bracket is movable up and down on the vertical guide rail;

[0015] A vertical flipping and positioning machine is located on the top of the mounting frame, with its flipping part facing the positioning platform and equipped with a flipping plate; both ends of the flipping plate are provided with the mating holes;

[0016] The telescopic device is vertically mounted on the mounting frame or base and is used to drive the mounting frame to rise or fall, thereby driving the vertical tilting and positioning machine to rise or fall.

[0017] Furthermore, the positioning stage includes:

[0018] The main body has a T-shaped cross-section, and the top plate of the main body has several vertical threaded holes along its circumference;

[0019] The top support screw is screwed into the vertical threaded hole and is used to axially level the workpiece.

[0020] Furthermore, the top of the vertical threaded hole is provided with a flared neck;

[0021] The upper end of the top support screw is provided with a necked section, and the upper end of the necked section is provided with a ball head, which is ball-jointed with a top plate.

[0022] Furthermore, the main body top plate is provided with an upward extension plate on its periphery, and the extension plate is provided with a number of radial push rods at uniform intervals along its periphery for radial leveling of the workpiece.

[0023] Furthermore, the main body top plate is provided with two rings of vertical threaded holes.

[0024] Furthermore, the length of the support screw installed in the vertical threaded hole of the inner ring is greater than the length of the support screw installed in the vertical threaded hole of the outer ring.

[0025] Furthermore, the positioning platform is installed on the center of the top surface of the base using a horizontal rotary positioner.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. Through the symmetrical vertical flipping mechanism and the cooperation of the insertion rod and the mounting shaft, the impeller can be flipped in place on the fixture, eliminating the need for a crane to lift the workpiece and flip it, greatly shortening the flipping time (avoiding crane waiting and low-speed movement), and eliminating the risk of blade damage during the lifting process;

[0028] 2. The design allows for independent height adjustment via the top support screw of the positioning table, which, together with the ball head and top plate, adapts to the bottom surface of the workpiece to ensure axial positioning accuracy. At the same time, the radial position of the workpiece can be finely adjusted via the radial push rod on the extension plate to eliminate eccentricity error.

[0029] 3. The design of the double-ring vertical threaded hole, with the inner / outer ring of different length top support screws, allows the fixture to be well adapted to the positioning and clamping of the large-diameter end and small-diameter end of the impeller. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a top view of the present invention;

[0032] Figure 3 This is a cross-sectional view (AA) of the present invention;

[0033] Figure 4 for Figure 3 Enlarged view of part I in the image;

[0034] Figure 5 This is a schematic diagram of the process of flipping the workpiece according to the present invention.

[0035] In the diagram: 1. Base; 2. Positioning platform; 21. Main body; 22. Top support screw; 221. Necked section; 23. Ball head; 24. Top plate; 25. Extension plate; 26. Radial push rod; 201. Stepped hole; 202. Vertical threaded hole; 3. Mounting shaft; 31. Necked threaded section; 32. Compression nut; 301. Radial through hole; 4. Vertical flipping mechanism; 41. Vertical guide rail; 42. Mounting bracket; 43. Vertical flipping positioner; 44. Flipping plate; 45. Telescopic device; 401. Mating hole; 5. Insert rod; 6. Horizontal rotary positioner. Detailed Implementation

[0036] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0037] Example 1, in conjunction with Appendix Figure 1-5 A wheel processing fixture with a material turning function includes a base 1, a positioning table 2 for positioning the workpiece is provided in the middle of the top surface of the base 1, the workpiece is positioned and fixed by the positioning table 2, and the positioning table 2 is provided in the middle of the table with a stepped hole 201 that is larger at the top and smaller at the bottom; it also includes a mounting shaft 3, both ends of the mounting shaft 3 are provided with necked thread sections 31, and the outer end of the necked thread section 31 is provided with a radial through hole 301, and the necked thread section 31 is screwed with a clamping nut 32, which is used to press down the workpiece and fix the workpiece.

[0038] Among them, the necked thread section 31 at the lower end of the mounting shaft 3 is screwed into the small diameter section of the stepped hole 201, and the clamping nut 32 on it is located in the inner cavity of the large diameter section of the stepped hole 201.

[0039] The base 1 is also provided with two vertical flipping mechanisms 4 symmetrically at both ends. The flipping part of the vertical flipping mechanism 4 has mating holes 401 at both ends corresponding to the radial through holes 301 at both ends of the mounting shaft 3.

[0040] It should be noted that the vertical tilting mechanism 4 has a telescopic device 45 for driving the tilting part to rise and fall.

[0041] When it is necessary to flip the workpiece, firstly rotate the mounting shaft 3 so that it is free from the small diameter section of the stepped hole 201. Then, use the telescopic device 45 to drive the flipping part of the vertical flipping mechanism 4 to rise, so that the mating hole 401 at the upper end of the vertical flipping mechanism 4 is coaxial with the radial through hole 301 at the upper end of the mounting shaft 3. Then, insert the rod 5 into the radial through hole 301 at the upper end of the mounting shaft 3 and the two mating holes 401 at the upper end of the vertical flipping mechanism 4. Then, the telescopic device 45 drives the flipping part of the vertical flipping mechanism 4 to rise again, ensuring that the workpiece has flipping space. Then, use another rod 5 to insert into the radial through hole 301 at the lower end of the mounting shaft 3 and the two mating holes 401 at the lower end of the vertical flipping mechanism 4. At this time, the vertical flipping mechanism 4 is used to flip the workpiece. Then, according to the above principle, the flipped workpiece can be clamped and fixed. This solves the technical problem of long time and safety hazards caused by the existing technology of using a crane to lift the workpiece away from the flipping and then lift it to the fixture for positioning and clamping.

[0042] As needed, the positioning platform 2 is installed on the center of the top surface of the base 1 by a horizontal rotary positioner 6.

[0043] In one possible implementation, the vertical flipping mechanism 4 includes a vertical guide rail 41 located at the end of the base 1. The vertical guide rail 41 is provided with a mounting frame 42 that can move up and down. A vertical flipping positioner 43 is mounted on the top of the mounting frame 42, and the flipping part of the vertical flipping positioner 43 faces the positioning table 2 and is equipped with a flipping plate 44. The flipping plate 44 has mating holes 401 at both ends.

[0044] In this embodiment, the telescopic device 45 is vertically mounted on the mounting frame 42 or the base 1. That is, the extension of the telescopic device 45 causes the mounting frame 42 to rise, which in turn causes the vertical flipping and positioning machine 43 and the flipping plate 44 to rise.

[0045] In one possible implementation, the positioning table 2 includes a main body 21 with a T-shaped cross-section. The top plate of the main body 21 has several vertical threaded holes 202 along its circumference, and each vertical threaded hole 202 is screwed with a support screw 22. That is, by rotating the support screw 22, the support screw 22 rises and supports the bottom surface of the workpiece, so that the workpiece is in a vertical state; then the workpiece is fixed by the clamping nut 32 screwed to the necked thread section 31.

[0046] Furthermore, since the diameters at both ends of the workpiece are different, the top plate of the main body 21 is provided with two rings of vertical threaded holes 202. The top support screw 22 installed in the inner ring of the vertical threaded hole 202 performs operation when the small diameter end of the workpiece is placed on the positioning table 2, and the top support screw 22 installed in the outer ring of the vertical threaded hole 202 performs operation when the large diameter end of the workpiece is placed on the positioning table 2.

[0047] As needed, to facilitate the rotation of the support screw 22 installed in the vertical threaded hole 202 of the inner ring, the length of the support screw 22 installed in the vertical threaded hole 202 of the inner ring is greater than the length of the support screw 22 installed in the vertical threaded hole 202 of the outer ring. That is, when rotating the support screw 22 of the inner ring, the support screw 22 of the outer ring will not obstruct the rotation of the wrench used to rotate the support screw 22 of the inner ring.

[0048] In this embodiment, the top plate of the main body 21 is provided with an upward extension plate 25 on its periphery, and the extension plate 25 is provided with a plurality of radial push rods 26 at uniform intervals along its periphery for radial leveling of the workpiece.

[0049] When positioning and clamping the workpiece, first place the workpiece on the top surface of the main body 21, then rotate the corresponding radial push rod 26 according to the radial position of the workpiece to adjust the radial position of the workpiece so that the bottom of the workpiece is located at the center of the main body 21. Then, according to the axial position (tilted state) of the workpiece, rotate the corresponding top support screw 22 to make the workpiece and the main body 21 coaxial. Then, use the clamping nut 32 to press down on the workpiece to fix it.

[0050] Example 2, in conjunction with Appendix Figure 3-4 A type of impeller machining fixture with a material turning function, which differs from Embodiment 1 in that the vertical threaded hole 202 and the top support screw 22 are optimized:

[0051] The top of the vertical threaded hole 202 is provided with a flared neck;

[0052] The upper end of the top support screw 22 is provided with a necked section 221, and the upper end of the necked section 221 is provided with a ball head 23, which is ball-jointed with a top plate 24.

[0053] It should be noted that the workpiece shown in the attached diagram only shows the central shaft of the impeller; the impeller blades are not shown.

[0054] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A jig for processing impellers with a turning function, comprising a base (1), wherein a positioning platform (2) for positioning the workpiece is provided in the middle of the top surface of the base (1), characterized in that: The positioning platform (2) has a stepped hole (201) in the middle that is larger at the top and smaller at the bottom; it also includes: Mounting shaft (3), both ends of the mounting shaft (3) are provided with necked threaded sections (31) with radial through holes (301) at the outer ends, and the necked threaded sections (31) are screwed with clamping nuts (32); the necked threaded section (31) at the lower end of the mounting shaft (3) is screwed into the small diameter section of the stepped hole (201), and the clamping nut (32) on it is located in the inner cavity of the large diameter section of the stepped hole (201); Two vertical flipping mechanisms (4) are symmetrically arranged at both ends of the base (1), and the flipping parts have mating holes (401) corresponding to the radial through holes (301) at both ends of the mounting shaft (3). Two insert rods (5) are capable of being inserted into and mating with a radial through hole (301) and a mating hole (401) located on the same axis. The vertical flipping mechanism (4) has a telescopic device (45) for driving its flipping part to rise and fall.

2. The impeller machining fixture with a material turning function according to claim 1, characterized in that: The vertical flipping mechanism (4) includes: A vertical guide rail (41) is provided at the end of the base (1); The mounting bracket (42) is movable up and down on the vertical guide rail (41); A vertical flipping and positioning machine (43) is located on the top of the mounting frame (42), with its flipping part facing the positioning table (2) and a flipping plate (44) installed thereon; both ends of the flipping plate (44) are provided with the mating holes (401). The telescopic device (45) is vertically mounted on the mounting frame (42) or the base (1) to drive the mounting frame (42) to rise or fall, thereby driving the vertical flipping and positioning machine (43) to rise or fall.

3. The impeller machining fixture with a material turning function according to claim 2, characterized in that: The positioning stage (2) includes: The main body (21) has a T-shaped cross-section, and the top plate of the main body (21) has several vertical threaded holes (202) along its circumference. The top support screw (22) is screwed into the vertical threaded hole (202) and is used to axially level the workpiece.

4. The impeller machining fixture with a material turning function according to claim 3, characterized in that: The top of the vertical threaded hole (202) is provided with a flared neck; The upper end of the top support screw (22) is provided with a necked section (221), and the upper end of the necked section (221) is provided with a ball head (23), and the ball head (23) is ball-jointed with a top plate (24).

5. The impeller machining fixture with a material turning function according to claim 3, characterized in that: The main body (21) has an upward extension plate (25) on its top plate. The extension plate (25) has a number of radial push rods (26) evenly spaced around its circumference for radial leveling of the workpiece.

6. A wheel machining fixture with a material turning function according to any one of claims 3-5, characterized in that: The top plate of the main body (21) is provided with two rings of vertical threaded holes (202).

7. The impeller machining fixture with a material turning function according to claim 6, characterized in that: The length of the top support screw (22) installed in the inner ring vertical threaded hole (202) is greater than the length of the top support screw (22) installed in the outer ring vertical threaded hole (202).

8. The impeller machining fixture with a material turning function according to claim 1, characterized in that: The positioning platform (2) is installed on the top center of the base (1) by a horizontal rotation positioner (6).

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