A flexible tooling for high-precision rotating body and a clamping method thereof

By adopting high-precision flexible tooling in the processing of rotary bodies, using bidirectional force support and vacuum adsorption technology, the problems of instability and low accuracy of large rotary bodies are solved, and efficient and stable processing effects are achieved.

CN113172445BActive Publication Date: 2025-06-06宁波航工智能装备有限公司
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202110522734.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-05-13
Publication Date
2025-06-06
Estimated Expiration
2041-05-13

AI Technical Summary

Technical Problem

In the prior art, when processing large rotary bodies, it is difficult to stabilize the support of the concave and convex ribs on the outer circumference, resulting in problems of low machining instability and accuracy.

Method used

A high-precision flexible tooling is adopted, including a rotary wheel, a radial module and an auxiliary module. The stability of the rotary body during processing is ensured through the bidirectional force support of the first and second force application components and combined with the adsorption force of the vacuum adsorption unit.

Benefits of technology

It improves the stability and accuracy of rotary body processing, reduces the vibration of tool module, and realizes efficient clamping and processing of large rotary bodies.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN113172445B_ABST
    Figure CN113172445B_ABST
Patent Text Reader

Abstract

The present invention discloses a flexible tooling for a high-precision rotating body and a clamping method thereof, comprising a tooling assembly and a tool module for processing the rotating body, wherein the rotating body has a conical outer peripheral surface, and the outer peripheral surface is provided with convex ribs staggered in both horizontal and vertical directions, and the tooling assembly comprises: a turntable; a plurality of radial modules, which are arranged radially along the rotating body, and the radial module comprises a first force-applying component and a second force-applying component, wherein the first force-applying component has an arc-shaped end surface matching the contour of the inner wall of the rotating body, and the rotating body is positioned on the arc-shaped end surface; the first force-applying component moves radially along the rotating body and presses against the inner wall of the rotating body to provide a first force radially outward to the rotating body, and the second force-applying component moves with the first force-applying component and provides a second force radially inward to the rotating body; an auxiliary module, wherein the auxiliary module is arranged below the radial module, and the auxiliary module is abutted against the bottom of the rotating body, thereby effectively increasing processing stability and processing accuracy.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of rotating body processing equipment, and in particular to a flexible tooling for a high-precision rotating body and a clamping method thereof. Background Art

[0002] At present, in the field of mechanical processing, the processing of rotating bodies is very common, especially large rotating body workpieces used in aerospace, which usually need to mill the inner and outer peripheral surfaces. For the outer peripheral surface of such rotating body workpieces, the existing processing method is usually to set a processing tool on both the inner and outer peripheral surfaces to achieve the processing effect. However, for the rotating body with concave and convex ribs on the outer peripheral surface, it is difficult to set the external tool, thereby increasing the requirements for the inner peripheral surface tool;

[0003] A thin-walled rotating body clamping tool in the prior art. The Chinese invention patent with the authorization announcement number CN107538247B includes a working turntable and a clamping arm unit, the clamping arm unit includes a plurality of clamping arms extending in the front-to-back direction and arranged at intervals along the circumference of the working turntable, each clamping arm is provided with at least two support columns for press-fitting with the rotating positioning surface of the corresponding thin-walled rotating body at intervals along the front-to-back direction, each support column has a press end for forming a positioning cylindrical surface corresponding to the rotating positioning surface of the thin-walled rotating body, and the working turntable is provided with a mounting structure for adjusting the position of each clamping arm along the radial direction of the working turntable to obtain the positioning cylindrical surfaces of different radial sizes. , it can be adjusted according to the size of the corresponding rotating body tooling, but its adjustment function is actually realized by multiple adjustment holes on the working turntable. This kind of tooling is difficult to adjust, and multiple adjustment holes need to be fixed in the circumferential direction, and the support on the inner circumference is simply supported by the top pressure of the support column. The top pressure is actually achieved by the forming shape of the support column itself, and there are deviations in the outer dimensions of multiple support columns in the circumferential direction. The supporting effects on the rotating body are different, which is not conducive to processing, especially for large rotating bodies with an inner diameter of 300 cm and a wall thickness of 1.5 mm. For the larger the size of the rotating body, the more obvious the instability of its processing. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a flexible tooling for a high-precision rotating body and a clamping method thereof, so as to effectively increase processing stability and processing accuracy.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a flexible tooling for a high-precision rotating body, comprising a tooling assembly and a tool module for processing the rotating body, the rotating body having a tapered outer peripheral surface, and the outer peripheral surface is provided with convex ribs staggered in horizontal and vertical directions, the tooling assembly comprises: a turntable; a plurality of radial modules, arranged radially along the rotating body, the radial module comprising a first force-applying component and a second force-applying component, the first force-applying component having an arc-shaped end surface matching the contour of the inner wall of the rotating body, the second force-applying component exposed on the arc-shaped end surface, and the rotating body being positioned on the arc-shaped end surface; the first force-applying component moves radially along the rotating body and presses against the inner wall of the rotating body to provide a first force radially outward of the rotating body, the second force-applying component moves with the first force-applying component and provides a second force radially inward of the rotating body, the second force is applied between the convex ribs staggered in horizontal and vertical directions; an auxiliary module, the auxiliary module is arranged below the radial module, and the auxiliary module is abutted against the bottom of the rotating body to provide a vertical supporting force.

[0006] Furthermore, a skirt extending radially outward is provided at the bottom of the rotating body, and the skirt abuts against a horizontal end surface of the auxiliary module. The auxiliary module also includes a pressing block, and the pressing block is pressed against the upper end surface of the skirt.

[0007] Furthermore, a dividing track is provided on the turntable, and the radial modules are confined to move within the dividing track. The number of the dividing tracks is four, the number of the radial modules is four, and the dividing tracks are evenly distributed about the center of the turntable.

[0008] Furthermore, the top of the rotating body has a top edge extending inwardly, and the radial module has a lifting component arranged on the upper part of the first force-applying component. The lifting component includes a top plate matching the contour of the inner wall of the top edge, and the top plate moves vertically and abuts against the inner wall of the top edge.

[0009] Furthermore, the radial module also includes a radial travel platform, and the first force-applying component is arranged on the radial travel platform, wherein the first force-applying component includes a bracket and an arc-shaped support seat arranged on the radial travel platform, and the arc-shaped support seat is provided with an opening for accommodating the second force-applying component, and the openings are arranged at intervals along the axial and circumferential directions.

[0010] Furthermore, the second force-applying component includes a support block arranged on the opening and a connecting piece arranged on the back of the arc-shaped support seat, the support block is provided with a plurality of adsorption units, the connecting piece connects at least two support blocks, and the support block is flush with the end surface of the arc-shaped support seat.

[0011] Furthermore, the adsorption units are arranged in sequence and at intervals along the generatrix of the rotating body, and the adsorption units on the same horizontal plane are arranged in sequence and at intervals along the circumferential direction of the rotating body.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: during clamping, the auxiliary module provides vertical support force for the rotating body.

[0013] The rotating body is placed on the auxiliary module by hoisting, and the rotating body is adjusted to be coaxial with the turntable, so as to complete the preliminary positioning of the rotating body, and the first force-applying component is driven by the radial travel platform to radially press against the inner circumference of the rotating body, and the arc-shaped support seat of the first force-applying component provides radial outward pressure for the rotating body. At the same time, the second force-applying component moves with the first force-applying component, and the support block on the second force-applying component and the arc-shaped support seat form an arc-shaped end face, thereby increasing the structural compactness of the first force-applying component and the second force-applying component. While the support block provides a certain pressure, the adsorption unit thereon works to provide radial inward adsorption force for the rotating body, thereby ensuring the stability of the rotating body itself when processing the outer circumference of the rotating body, and avoiding the tool module from vibrating.

[0014] The rotating body is supported bidirectionally by radially inward and radially outward forces, and the second force of adsorption acts between the two convex ribs staggered horizontally and vertically, thereby limiting the shaking of the thin wall of the rotating body, increasing stability and processing accuracy, and the processing area is formed by the adsorption unit exposed on the arc end face, which can meet the needs of partial clamping and overall clamping of large rotating bodies;

[0015] The radial module is circumferentially arranged on the turntable, and the rotating body can be quickly positioned through the rotation of the turntable and the tool module. At the same time, by adjusting the radial position of the radial module, the rotating body with different inner diameters can be clamped within a certain range. In addition, the jacking assembly, the radial travel platform, the first force-applying assembly and the second force-applying assembly can move synchronously, thereby effectively ensuring the consistency of the force applied to the rotating body. The entire clamping action solves the operational difficulty of manual clamping, reduces safety hazards, and the clamping positioning is simple and easy to operate.

[0016] A method for processing a flexible tooling of a high-precision rotating body, characterized in that the processing method comprises:

[0017] Step 1: Loading the rotating body: hoist the rotating body blank to the top of the turntable, adjust the rotating body and the turntable to be coaxial, adjust the support block to be located in the horizontal and vertical staggered convex ribs, and place the skirt on the auxiliary module, and press the pressing block on the skirt;

[0018] Step 2: Positioning and clamping the rotating body: The tool module is also connected to an online measurement system. After the tool module completes the tool setting, it sends a signal to the online measurement system and the radial module. After receiving the signal, the radial module moves forward, driving the first force-applying component and the second force-applying component to press against the inner circumference of the rotating body. The current thickness of the rotating body is obtained through the online measurement system, thereby obtaining the feed amount of the tool module. At the same time, the arc end face is set as the processing area.

[0019] Step 3: Positioning and clamping the rotating body 2: Start the vacuum pump, connect the vacuum pump to the adsorption unit, and control the adsorption unit on the processing area to adsorb the inner circumference of the rotating body to provide radial inward adsorption force;

[0020] Step 4: Processing of the rotating body 1: At this time, the tool module processes the convex ribs on the outer peripheral surface of the rotating body according to the path, and the path refers to the generatrix of the rotating body;

[0021] Step 5: Rotating body inspection: turn off the vacuum pump, return the radial module to its original position, and obtain the current thickness of the rotating body through the online measurement system. If it is qualified, continue to run; if it is unqualified, return to step 2;

[0022] Step 6: Rotating body processing 2: Turn the turntable to align the radial module with the next processing area, return to step 2 and continue to operate until the entire rotating body outer peripheral surface processing is completed.

[0023] Further, in step five: the turntable drives the radial module to rotate 45° clockwise, enters steps two and three, and the tool module rotates 45° counterclockwise, enters step four and continues to run, and repeats this cycle 8 times to complete the entire outer peripheral surface processing of the rotary body.

[0024] Furthermore, the online measurement system refers to ultrasonic testing;

[0025] In step 2, positioning detection is also included: manually using a feeler gauge to check the fit between the arc end surface and the inner circumference of the rotating body. If it is qualified, continue to run; if it is unqualified, return to step 1 and perform debugging;

[0026] In step two, vertical positioning and clamping are also included: after the first force-applying component is in place, the jacking component is activated to abut the top plate against the inner wall of the top edge of the rotating body to provide vertical limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the tooling assembly and the rotating body of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the tooling assembly of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a radial module on a turntable of the present invention;

[0030] Figure 4 A schematic diagram of clamping a rotating body on a tooling assembly according to the present invention;

[0031] Figure 5 It is a schematic diagram of clamping another rotating body on a tooling assembly of the present invention;

[0032] Figure 6It is a schematic structural diagram of the first force-applying assembly and the second force-applying assembly of the present invention;

[0033] Figure 7 A schematic structural diagram of the first force-applying assembly and the second force-applying assembly of the present invention from another angle;

[0034] Figure 8 is an exploded schematic diagram of the second force-applying component of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the jacking assembly of the present invention;

[0036] In the figure: 1, rotating body; 1.1, convex rib; 1.2, skirt; 1.3, top edge; 2, turntable; 2.1, indexing track; 2.2, rotary drive mechanism; 3, first force-applying component; 3.1, arc-shaped end surface; 3.2, bracket; 3.3, arc-shaped support seat; 3.4, opening; 4, second force-applying component; 4.1, support block; 4.2, connecting piece; 4.3, adsorption unit; 5, auxiliary module; 5.1, horizontal end surface; 5.2, pressing block; 6, lifting component; 6.1, top plate; 6.2, ruler; 6.3, indicator; 6.4, vertical drive module; 7, radial travel platform; DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0039] like Figure 1-9 As shown, a flexible tooling for a high-precision rotating body comprises a tooling assembly and a tool module for processing a rotating body 1, wherein the rotating body 1 has a conical outer peripheral surface, and the outer peripheral surface is provided with convex ribs 1.1 staggered in horizontal and vertical directions, and the convex ribs 1.1 form a grid on the rotating body 1, and the tooling assembly comprises:

[0040] A turntable 2, wherein a rotation drive mechanism 2.2 is provided at the bottom of the turntable 2, and a support seat and a working platform are provided at the bottom of the rotation drive mechanism 2.2;

[0041] A plurality of radial modules are arranged radially along the rotating body 1, wherein the radial modules include a first force-applying component 3 and a second force-applying component 4, wherein the first force-applying component 3 has an arc-shaped end surface 3.1 matching the inner wall profile of the rotating body 1, and the second force-applying component 4 is exposed on the arc-shaped end surface 3.1;

[0042] The first force-applying component 3 moves radially along the rotating body 1 and presses against the inner wall of the rotating body 1 to provide a first force radially outward of the rotating body 1, and the first force refers to the pressing force supported on the inner peripheral surface of the rotating body 1. The second force-applying component 4 moves along with the first force-applying component 3 and provides a second force radially inward of the rotating body 1, and the second force refers to the adsorption force on the inner peripheral surface of the rotating body 1 by vacuum adsorption. Since the wall thickness at the grid of the rotating body 1 is the weakest, the second force is applied between the ribs 1.1 staggered horizontally and vertically, thereby reducing the vibration at the grid during processing, and the rotating body 1 is positioned on the arc-shaped end surface 3.1 by moving the radial module in the radial direction;

[0043] The auxiliary module 5 is arranged below the radial module, and the auxiliary module 5 is abutted against the bottom of the rotating body 1 to provide vertical supporting force.

[0044] As an example of the processing of the rotating body 1 of the invention, the rotating body 1 has a tapered outer circumferential surface, a skirt 1.2 is extended outward at the bottom of the outer circumferential surface, and a top edge 1.3 is extended inward at the top of the outer circumferential surface. The top edge 1.3 is upturned, and the top and bottom of the rotating body 1 are formed with two circular holes of different sizes. The maximum outer diameter of the rotating body 1 is 3250mm, and its maximum wall thickness is 25mm. The thickness of the vertical rib 1.1 is 4mm, the thickness of the horizontal rib 1.1 is 4mm, and the wall thickness at the thinnest point is 1.5mm.

[0045] As another example of the processing of the rotating body 1 of the present invention, the rotating body 1 has a cylindrical first outer peripheral surface, a conical second outer peripheral surface at the bottom of the first outer peripheral surface, a skirt 1.2 extending outward from the bottom of the second outer peripheral surface, and another skirt 1.2 extending horizontally outward from the top of the first outer peripheral surface.

[0046] Optionally, the second force of the second force applying component 4 may also be applied by a magnetic member.

[0047] In other embodiments, the bottom of the rotating body 1 is provided with a skirt 1.2 extending radially outward, and the skirt 1.2 abuts against the horizontal end surface 5.1 of the auxiliary module 5, and the auxiliary module 5 also includes a pressing block 5.2, and the pressing block 5.2 is pressed on the upper end surface of the skirt 1.2, thereby limiting the vertical position of the rotating body 1.

[0048] Specifically, a dividing track 2.1 is provided on the turntable 2, and the radial modules are confined to move within the dividing track 2.1. There are four dividing tracks 2.1 and four radial modules, and the dividing tracks 2.1 are evenly distributed about the center of the turntable 2.

[0049] In other embodiments, the top of the rotating body 1 has an inwardly extending top edge 1.3, the radial module has a lifting assembly 6 arranged on the upper part of the first force-applying assembly 3, the lifting assembly 6 includes a top plate 6.1 matching the inner wall contour of the top edge 1.3, and a vertical driving module 6.4 for driving the top plate 6.1 to vertically lift and lower, and the top plate 6.1 is driven by the vertical driving module 6.4 to move and abut against the inner wall of the top edge 1.3.

[0050] As an embodiment of the jacking assembly 6, the vertical drive module 6.4 includes two vertical slide rails and a vertical slider disposed thereon. In order to provide the vertical slider with upward power, a driving member is disposed at the bottom of the vertical slide rails. The driving member may be a pulley transmission mechanism controlled by a motor, and its driving wheel is connected to a screw rod disposed between the two vertical slide rails. The screw rod drives the two vertical slide rails to rise relative to the vertical slider, thereby lifting and lowering the top plate 6.1 disposed on the top of the vertical slide rails.

[0051] As another embodiment of the jacking assembly 6, the driving member can also be a pulley transmission mechanism driven manually, and a vertical scale 6.2 and an indicator 6.3 are arranged on the outer side of the vertical slide rail to control the vertical movement distance of each jacking assembly 6.

[0052] In other embodiments, the top edge 1.3 of the rotating body 1 has a tendency to tilt upward toward the axis of the rotating body 1, and the top plate 6.1 of the jacking assembly 6 has a contour matching therewith. Preferably, a third force-applying assembly having an adsorption unit 4.3 may also be provided on the top plate 6.1 to increase the stability of the processing of the rotating body 1.

[0053] Specifically, the radial module also includes a radial travel platform 7, the first force-applying component 3 is arranged on the radial travel platform 7, and the lifting component 6 is also arranged on the radial travel platform 7, wherein the first force-applying component 3 includes a bracket 3.2 and an arc-shaped support seat 3.3 arranged on the radial travel platform 7, and the arc-shaped support seat 3.3 is provided with an opening 3.4 for accommodating the second force-applying component 4, and the openings 3.4 are arranged at intervals in the axial and circumferential directions, and the arrangement direction thereof is the same as the direction of the grid-like ribs 1.1 on the rotating body 1, and each opening 3.4 is located between the ribs 1.1 that are staggered horizontally and vertically, that is, located at the thin wall of the rotating body 1.

[0054] As an explanation for the radial movement of the radial module, a radial slide rail, a radial slider and a radial screw are provided at the bottom of the radial moving platform 7. The radial moving platform 7 is arranged on the radial slider, and the radial screw provides driving force to drive the radial slider to move on the radial slide rail.

[0055] Specifically, the second force-applying component 4 includes a support block 4.1 arranged on the opening 3.4 and a connecting piece 4.2 arranged on the back of the arc-shaped support seat 3.3, the support block 4.1 is provided with a plurality of adsorption units 4.3, the connecting piece 4.2 connects at least two support blocks 4.1, and the support block 4.1 is flush with the end face of the arc-shaped support seat 3.3, thereby forming an arc-shaped end face 3.1 together with the end face of the arc-shaped support seat 3.3, wherein the adsorption unit 4.3 is composed of a quick connector, a plug and a bolt with a vent hole, and the adsorption force is provided to the adsorption unit 4.3 by the operation of a vacuum pump.

[0056] In this embodiment, the number of adsorption units 4.3 on one support block 4.1 is nine, and the nine adsorption units 4.3 are arranged alternately in the transverse direction and the longitudinal direction.

[0057] Specifically, the adsorption units 4.3 are arranged in sequence and at intervals along the generatrix of the rotating body 1, and the adsorption units 4.3 on the same horizontal plane are arranged in sequence and at intervals along the circumferential direction of the rotating body 1.

[0058] During clamping, the auxiliary module 5 provides vertical support force for the rotating body 1.

[0059] The rotating body 1 is placed on the auxiliary module 5 by hoisting, and the rotating body 1 is adjusted to be coaxial with the turntable 2, so as to complete the preliminary positioning of the rotating body 1, and the first force-applying component 3 is driven by the radial travel platform 7 to radially press against the inner circumference of the rotating body 1, and the arc-shaped support seat 3.3 of the first force-applying component 3 provides a radially outward pressure for the rotating body 1. At the same time, the second force-applying component 4 moves with the first force-applying component 3, and the support block 4.1 on the second force-applying component 4 and the arc-shaped support seat 3.3 form an arc-shaped end surface 3.1, which increases the structural compactness of the first force-applying component 3 and the second force-applying component 4. While the support block 4.1 provides a certain pressure, the adsorption unit 4.3 thereon works to provide a radially inward adsorption force for the rotating body 1, thereby ensuring the stability of the rotating body 1 itself when the outer circumference of the rotating body 1 is processed, and avoiding the tool module from trembling.

[0060] The rotating body 1 is supported bidirectionally by radially inward and radially outward forces, and the second force as adsorption acts between the two convex ribs 1.1 that are staggered horizontally and vertically, thereby limiting the shaking of the thin wall of the rotating body 1, increasing stability and processing accuracy, and the adsorption unit 4.3 exposed on the arc end surface 3.1 forms a processing area, which can meet the needs of partial clamping and overall clamping of a large rotating body 1;

[0061] The radial module is circumferentially arranged on the turntable 2, and the rotating body 1 can be quickly positioned by rotating the turntable 2 and the tool module. At the same time, by adjusting the radial position of the radial module, the rotating body 1 with different inner diameters can be clamped within a certain range. In addition, the lifting component 6, the radial travel platform 7, the first force component 3 and the second force component 4 can move synchronously, thereby effectively ensuring the consistency of the force applied to the rotating body 1. The entire clamping action solves the operational difficulty of manual clamping, reduces safety hazards, and has simple clamping positioning and convenient operation.

[0062] A method for processing a flexible tooling of a high-precision rotating body 1, characterized in that the processing method comprises:

[0063] Step 1: Loading the rotating body 1: hoist the blank of the rotating body 1 to be processed above the turntable 2, adjust the rotating body 1 to be coaxial with the turntable 2, adjust the support block 4.1 to be located in the ribs 1.1 staggered in the horizontal and vertical directions, and at the same time place the skirt 1.2 on the auxiliary module 5, and press the pressing block 5.2 on the skirt 1.2;

[0064] Step 2: Positioning and clamping the rotating body 1: The tool module is also connected to an online measurement system. After the tool module completes the tool setting, it sends a signal to the online measurement system and the radial module. After receiving the signal, the radial module moves forward, driving the first force-applying component 3 and the second force-applying component 4 to press against the inner circumference of the rotating body 1. The current thickness of the rotating body 1 is obtained through the online measurement system, thereby obtaining the feed amount of the tool module. At the same time, the arc end surface 3.1 is set as the processing area;

[0065] Step 3: Positioning and clamping the rotating body 1 2: Start the vacuum pump, connect the vacuum pump to the adsorption unit 4.3, and control the adsorption unit 4.3 on the processing area to adsorb the inner circumference of the rotating body 1 to provide radial inward adsorption force;

[0066] Step 4: Processing the rotating body 1 1: At this time, the tool module processes the convex rib 1.1 on the outer peripheral surface of the rotating body 1 according to the path, and the path refers to the generatrix of the rotating body 1;

[0067] Step 5: Detection of the rotating body 1: Turn off the vacuum pump, return the radial module to its original position, and obtain the current thickness of the rotating body 1 through the online measurement system. If it is qualified, continue to run; if it is unqualified, return to step 2;

[0068] Step 6: Processing 2 of the rotating body 1: Turn the turntable 2 to align the radial module with the next processing area, return to step 2 and continue to operate until the outer peripheral surface of the entire rotating body 1 is processed.

[0069] Specifically, in step five: the turntable 2 drives the radial module to rotate 45° clockwise, and enters steps two and three, the tool module rotates 45° counterclockwise, enters step four and continues to run, and this cycle is repeated 8 times to complete the outer peripheral surface processing of the entire rotating body 1.

[0070] Specifically, the online measurement system refers to ultrasonic detection, which can realize real-time measurement during the processing and obtain the current thickness of the rotating body 1 through ultrasonic feedback;

[0071] In step 2, positioning detection is also included: manually use a feeler gauge to check the fit between the arc end surface 3.1 and the inner circumference of the rotating body 1. If it is qualified, continue to run; if it is unqualified, return to step 1 and perform debugging;

[0072] In step 2, vertical positioning and clamping are also included: after the first force-applying component 3 is in place, the lifting component 6 is activated to abut the top plate 6.1 against the inner wall of the top edge 1.3 of the rotating body 1 to provide vertical limiting.

[0073] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A flexible tooling for a high-precision rotating body, comprising a tooling assembly and a tool module for processing a rotating body (1), wherein the rotating body (1) has a conical outer peripheral surface, and the outer peripheral surface is provided with convex ribs (1.1) staggered in transverse and longitudinal directions, It is characterized in that The tooling assembly comprises: a turntable (2); A plurality of radial modules are arranged radially along the rotating body (1), the radial modules comprising a first force-applying component (3) and a second force-applying component (4), the first force-applying component (3) having an arc-shaped end surface (3.1) matching the inner wall profile of the rotating body (1), the second force-applying component (4) being exposed on the arc-shaped end surface (3.1), and the rotating body (1) being positioned on the arc-shaped end surface (3.1); The first force-applying component (3) moves radially along the rotating body (1) and presses against the inner wall of the rotating body (1) to provide a first force radially outward to the rotating body (1); the second force-applying component (4) moves along with the first force-applying component (3) and provides a second force radially inward to the rotating body (1), the second force being applied between the convex ribs (1.1) that are staggered in both the horizontal and vertical directions; An auxiliary module (5), the auxiliary module (5) being arranged below the radial module, and the auxiliary module (5) being abutted against the bottom of the rotating body (1) to provide vertical supporting force; The radial module also includes a radial travel platform (7), the first force-applying component (3) being arranged on the radial travel platform (7), wherein the first force-applying component (3) includes a bracket (3.2) and an arc-shaped support seat (3.3) arranged on the radial travel platform (7), the arc-shaped support seat (3.3) being provided with an opening (3.4) for accommodating the second force-applying component (4), and the openings (3.4) being arranged at intervals in the axial direction and the circumferential direction; The second force-applying component (4) comprises a support block (4.1) arranged on the opening (3.4) and a connecting piece (4.2) arranged on the back of the arc-shaped support seat (3.3); a plurality of adsorption units (4.3) are arranged on the support block (4.1); the connecting piece (4.2) connects at least two support blocks (4.1); and the support block (4.1) is flush with the end surface of the arc-shaped support seat (3.3); the adsorption units (4.3) are arranged in sequence and at intervals along the generatrix of the rotating body (1); and the adsorption units (4.3) on the same horizontal plane are arranged in sequence and at intervals along the circumference of the rotating body (1).

2. A flexible tooling for a high-precision rotating body according to claim 1, Features: The bottom of the rotating body (1) is provided with a skirt (1.2) extending radially outward, the skirt (1.2) abuts against the horizontal end surface (5.1) of the auxiliary module (5), and the auxiliary module (5) also includes a pressing block (5.2), and the pressing block (5.2) is pressed on the upper end surface of the skirt (1.2).

3. A flexible tooling for a high-precision rotating body according to claim 1, Features: The turntable (2) is provided with a dividing track (2.1), the radial modules are confined to move within the dividing track (2.1), the number of the dividing tracks (2.1) is four, the number of the radial modules is four, and the dividing tracks (2.1) are evenly distributed about the center of the turntable (2).

4. A flexible tooling for a high-precision rotating body according to claim 2, Features: The top of the rotating body (1) has a top edge (1.3) extending inwardly, and the radial module has a lifting component (6) arranged on the upper part of the first force-applying component (3), and the lifting component (6) includes a top plate (6.1) matching the inner wall profile of the top edge (1.3), and the top plate (6.1) moves vertically and abuts against the inner wall of the top edge (1.3).

5. A method for processing a flexible tooling for a high-precision rotating body, applied to the flexible tooling for a high-precision rotating body as claimed in claim 4, It is characterized in that The processing method comprises: Step 1, loading the rotating body (1): hoist the rotating body (1) blank to be processed above the turntable (2), adjust the rotating body (1) and the turntable (2) to be coaxial, adjust the support block (4.1) to be located in the ribs (1.1) that are staggered horizontally and vertically, and at the same time place the skirt (1.2) on the auxiliary module (5), and press the pressing block (5.2) on the skirt (1.2); Step 2, positioning and clamping of the rotating body (1): the tool module is also connected to an online measurement system. After the tool module completes tool alignment, it sends a signal to the online measurement system and the radial module. After receiving the signal, the radial module moves forward, driving the first force-applying component (3) and the second force-applying component (4) to press against the inner circumference of the rotating body (1). The first force-applying component (3) has an arc-shaped end face (3.1) matching the inner wall profile of the rotating body (1). The current thickness of the rotating body (1) is obtained through the online measurement system, thereby obtaining the feed amount of the tool module. At the same time, the arc-shaped end face (3.1) is set as the processing area. Step 3, positioning and clamping the rotating body (1) 2: start the vacuum pump, the vacuum pump is connected to the adsorption unit (4.3), and the adsorption unit (4.3) on the processing area is controlled to adsorb the inner circumference of the rotating body (1) to provide radial inward adsorption force; Step 4: Processing the rotating body (1) 1: At this time, the tool module processes the convex rib (1.1) on the outer peripheral surface of the rotating body (1) according to the path, and the path refers to the generatrix of the rotating body (1); Step 5: Testing the rotating body (1): Turn off the vacuum pump, return the radial module to its original position, and obtain the current thickness of the rotating body (1) through the online measurement system. If the thickness is qualified, continue to run; if not, return to step 2; Step 6: Processing the rotating body (1) 2: Rotate the turntable (2) to align the radial module with the next processing area, return to step 2 and continue to operate until the outer peripheral surface of the entire rotating body (1) is processed.

6. A method for processing a flexible tooling for a high-precision rotating body according to claim 5, Features: In step 5: the turntable (2) drives the radial module to rotate 45° clockwise, and enters steps 2 and 3. The tool module rotates 45° counterclockwise, and enters step 4 and continues to run. This cycle is repeated 8 times to complete the processing of the outer peripheral surface of the entire rotating body (1).

7. A method for processing a flexible tooling for a high-precision rotating body according to claim 5, Features: The online measurement system refers to ultrasonic testing; In step 2, positioning detection is also included: manually using a feeler gauge to check the fit between the arc-shaped end surface (3.1) and the inner circumference of the rotating body (1). If it is qualified, the operation continues; if it is unqualified, the operation returns to step 1 and is debugged; In step two, vertical positioning and clamping are also included: after the first force-applying component (3) is in place, the lifting component (6) is activated to abut the top plate (6.1) against the inner wall of the top edge (1.3) of the rotating body (1) to provide vertical limiting.

Citation Information

Patent Citations

  • A thin-walled rotating body clamping fixture

    CN107538247B

  • Pneumatic fastening tool for shield conical surface arc scraping plate

    CN111843564A

  • Flexible tool for high-precision rotary body

    CN215035411U