Auxiliary support device

Abstract

The present invention relates to the field of precision machining technology, and specifically provides an auxiliary support device, including: a support plate, a magnetic control table, a cylinder and a magnetizer, the magnetic control table is provided with a magnetically controllable N-pole region and an S-pole region, each magnetic pole region is provided with an outer magnetizer, and the outer magnetizers do not contact each other; a cylinder is provided inside the structure composed of all outer magnetizers, and an inner magnetizer is provided on the upper surface of the cylinder, and the inner magnetizers are in one-to-one contact with the outer magnetizers, and the inner magnetizers do not contact each other; a spherical magnetizer is located on the upper surface of the structure composed of all inner magnetizers, and the upper surface of the spherical magnetizer is connected to the support plate. The present invention realizes the locking and loosening of the workpiece position through the magnetic principle, and can realize the locking and loosening of 6 degrees of freedom at the same time. It has the characteristics of simple structure, excellent support performance, high stability, etc., effectively solves the shortcomings of traditional hydraulic floating support, and provides stable and safe support for the cutting processing of large aluminum alloy structural components.

Description

Technical Field

[0001] The invention belongs to the technical field of precision machining, and in particular relates to an auxiliary supporting device. Background Art

[0002] Large lightweight aluminum components have the characteristics of low density and high strength, which can reduce the weight of the structure while ensuring the strength of the structure. Due to its excellent performance, it has been widely used in aerospace, automobile manufacturing, construction and many other fields. With the continuous advancement of science and technology and the continuous improvement of technology, the application scope of lightweight aluminum components will continue to expand.

[0003] During the cutting process of large aluminum alloy structural components, due to the large amount of material removal, internal stress deformation is easily generated, which in turn affects the workpiece accuracy, product rigidity and clamping efficiency, which poses certain challenges in the field of metal cutting. Because it is necessary to consider the internal stress released by the material, the production efficiency of large-sized lightweight components is often difficult to improve. One of the important reasons is that the residual stress generated during the processing needs to be released. If the process of releasing stress is repeated continuously, it will take a lot of time to adjust, change the clamping position or re-clamp, affecting the processing efficiency.

[0004] At present, the clamping tools for large lightweight aluminum parts use hydraulic floating supports, which play the role of uniform load, reduce vibration, adaptive adjustment, and improve processing accuracy, which helps to reduce processing errors and improve product accuracy and consistency. However, hydraulic floating supports have the following disadvantages:

[0005] First, the hydraulic floating support device is in point contact with the workpiece, has low contact stiffness, and can only provide support force perpendicular to the contact surface, and has no support effect in other directions.

[0006] Second, after long-term use of the hydraulic system, the seals will wear and harden and lose their sealing effect. In addition, when installing the seals, if they are not installed correctly or damaged during the installation process, it will also cause hydraulic leakage and lose its supporting function.

[0007] Third, the components and pipelines of the hydraulic system usually require a large installation space, which may cause layout difficulties for equipment or places with limited space. In some compact mechanical structures, it is difficult to find a suitable installation location for the huge hydraulic system.

[0008] Therefore, it is urgent to design an auxiliary support device that can realize multi-degree-of-freedom constraints and have good support stability. Summary of the invention

[0009] In view of this, the present invention aims to provide an auxiliary support device, which realizes multi-degree-of-freedom constraint of the workpiece through the principle of magnetic adsorption and a cylinder, thereby solving the drawbacks of traditional hydraulic support devices that only have a supporting function in the vertical direction, poor supporting stiffness, complex structure, large installation space and easy leakage.

[0010] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0011] The invention provides an auxiliary support device, comprising: a support plate, a magnetic control table, a cylinder, an outer magnetic conductor, an inner magnetic conductor and a spherical magnetic conductor;

[0012] Among them, a magnetically controllable array is provided on the magnetic control table, and N-pole regions and S-pole regions that do not touch each other are alternately arranged in the array;

[0013] An outer magnet is arranged on each N-pole region and S-pole region, and the outer magnets do not contact each other; the interior of the structure composed of all the outer magnets forms a cavity perpendicular to the magnetic control table; the cylinder is located in the cavity, and the upper surface of the cylinder is provided with inner magnets equal to the number of the outer magnets, and the inner magnets are in one-to-one contact with the outer magnets, and the inner magnets do not contact each other;

[0014] The spherical magnetizer is located on the upper surface of the structure composed of all inner magnetizers. The upper surface of the structure composed of all inner magnetizers is a concave spherical surface. The lower surface of the spherical magnetizer is a convex spherical surface matched with the concave spherical surface. The upper surface of the spherical magnetizer is connected to the support plate.

[0015] Preferably, a 2×2 array is provided on the magnetic control table, and the magnetic size and presence of the N-pole region and the S-pole region in the array are controllable.

[0016] Preferably, the magnetism of the N-pole region and the S-pole region is controlled by an electromagnetic switch or by a permanent magnet.

[0017] Preferably, the N-pole region and the S-pole region are magnetized in sequence along the outer magnetizer, the inner magnetizer, and the spherical magnetizer in a magnetic state, so that adjacent outer magnetizers attract each other, and adjacent inner magnetizers attract each other, and the positioning and retraction of the workpiece is achieved through the support plate;

[0018] When the N-pole region and the S-pole region are in a non-magnetic state, there is no attraction between adjacent outer magnets, and there is no attraction between adjacent inner magnets. The workpiece is displaced by pushing the outer magnets, inner magnets and spherical magnets to achieve stress release.

[0019] Preferably, all the outer magnetic conductive structures and all the inner magnetic conductive structures are cylindrical.

[0020] Preferably, the cylinder includes a first non-magnetic frame and a piston, and the first non-magnetic frame includes: a hollow cylinder with an open upper bottom surface and a closed lower bottom surface, and three spacers and an air pipe are evenly arranged on the side of the cylinder, and the spacers and the air pipe are both located between adjacent external magnetic conductors to prevent the external magnetic conductors from contacting each other.

[0021] Preferably, the piston is arranged in the first non-magnetic frame and is sealed with the inner cavity of the first non-magnetic frame by a sealing ring. Air is charged and discharged into the first non-magnetic frame through an air pipe, and the air pressure is used to push the magnetic conductor on the upper surface of the cylinder to move up and down.

[0022] Preferably, it also includes a second non-magnetic frame, which is in the shape of a cross and consists of two mutually perpendicular non-magnetic plates. The second non-magnetic frame is located between the inner magnetic conductors to prevent the inner magnetic conductors from contacting each other.

[0023] Preferably, the static friction between the outer magnetic conductor and the first non-magnetic frame can be adjusted by controlling the magnetic magnitudes of the N-pole region and the S-pole region.

[0024] Compared with the prior art, the invention can achieve the following beneficial effects:

[0025] The present invention realizes the locking and loosening of the workpiece position through the magnetic principle, and can realize the locking and loosening of 6 degrees of freedom at the same time. The outer conductive magnet and the magnetic control table form a plane motion pair, which can ensure the locking and loosening degrees of freedom in two horizontal directions; the outer conductive magnet and the inner conductive magnet form a cylindrical motion pair, which can ensure the locking and loosening degrees of freedom in the height direction; the inner conductive magnet and the spherical conductive magnet form a spherical rotation motion pair, which can ensure the locking and loosening degrees of freedom in three rotation directions. During the workpiece processing, the internal stress generated by the workpiece processing can be effectively released by controlling the magnetic switch. In addition, compared with the traditional support device, the auxiliary support device of the present invention has better support stiffness and position retention ability for the workpiece, which solves the problem that the traditional support device can only provide support force in the direction perpendicular to the contact surface. In addition, the static friction between the conductive magnets can be adjusted by controlling the magnetic size. When the force applied to the workpiece is greater than the static friction during the processing, the conductive magnet in the auxiliary support device will have a protective displacement, which plays a role in safety protection for the workpiece. By adjusting the magnetism, the auxiliary support device can adapt to the processing requirements of different workpieces and avoid problems such as damage to the workpiece during the processing.

[0026] The auxiliary support device of the present invention has a simple structure, high reliability, and low control difficulty. Compared with the traditional hydraulic floating support device, it does not require the design of pipelines and hydraulic stations, will not have problems such as leakage, and has a smaller installation space.

[0027] The present invention not only drives the relative movement between the inner and outer magnetic conductors through the cylinder, but also can realize pre-loading of the workpiece support force through the cylinder during the installation of the auxiliary support device, balance the gravity of the workpiece, avoid the interference of the workpiece gravity during the stress release process, and realize higher-precision support. Traditional hydraulic floating support devices cannot realize gravity unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0029] Figure 1 is a schematic structural diagram of an auxiliary supporting device provided according to an embodiment of the present invention;

[0030] Figure 2 is a schematic diagram of an auxiliary supporting device supporting a workpiece according to an embodiment of the present invention;

[0031] Figure 3 is a schematic structural diagram of a magnetic control table provided according to an embodiment of the present invention;

[0032] Figure 4 is an internal structural diagram of an auxiliary supporting device provided according to an embodiment of the present invention;

[0033] Figure 5 is a schematic structural diagram of an outer magnetic conductor and an inner magnetic conductor provided according to an embodiment of the present invention;

[0034] Figure 6 is a structural schematic diagram of a first non-magnetic frame and a cylinder provided according to an embodiment of the present invention;

[0035] Figure 7 is a schematic structural diagram of a second non-magnetic frame provided according to an embodiment of the present invention;

[0036] Figure 8 It is a schematic diagram of magnetic circuit transmission provided according to an embodiment of the present invention.

[0037] Reference numerals include:

[0038] Support plate 1, magnetron 2, first non-magnetic frame 3, air pipe 31, second non-magnetic frame 4, outer magnet 5, inner magnet 6, spherical magnet 7, piston 8, sealing ring 81. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the invention clearer, the invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the invention and do not constitute a limitation to the invention. Similar components in different embodiments use associated similar component numbers. In the following embodiments, many detailed descriptions are to enable the invention to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other components, materials, and methods. In some cases, some operations related to the invention are not shown or described in the specification, in order to avoid the core part of the invention being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to form various implementation methods. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary sequence, unless otherwise specified that a certain sequence must be followed.

[0041] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0042] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0044] See also Figure 1 In one embodiment of the present invention, an auxiliary support device is provided for locking and loosening the position of a workpiece based on the principle of magnetic adsorption, which can meet the support requirements of the current large aluminum alloy structural parts during cutting and processing, and can release the internal stress of the workpiece during processing. Specifically, its structure includes: a support plate 1, a magnetic control table 2, a first non-magnetic frame 3, a second non-magnetic frame 4, a magnetizer and a cylinder, wherein the support plate 1 is the connection basis between the auxiliary support device and the workpiece. Before the workpiece is processed, it is usually necessary to use bolts or other bonding methods to connect the support plate 1 and the workpiece. Therefore, the support plate 1 usually adopts a circular flat plate or a flange structure.

[0045] Depending on the size of the workpiece, a single auxiliary support device can be used to support the workpiece, or multiple auxiliary support devices can be used to support the workpiece at multiple points. For large-sized workpieces, single-point support will cause the workpiece to deform or generate internal stress due to its own gravity. Therefore, for large-sized workpieces, please refer to Figure 2 , usually it is necessary to use multiple magnetic support units for multi-point support to improve the rigidity of the support and reduce the deformation of the workpiece under the action of processing force and gravity.

[0046] See also Figure 3, the magnetic control table 2 serves as the installation foundation of the auxiliary support device and is also a magnetic field generating component. It generally includes a base at the bottom and a magnetically controllable array arranged thereon. The base is usually a cylinder with a relatively large diameter, and multiple alternately arranged and non-touching N-pole regions and S-pole regions are provided on the upper surface of the cylinder. The N-pole regions and S-pole regions are collectively referred to as magnetic pole regions. Generally, a 2×2 array, including two N-pole regions and two S-pole regions, is designed. The presence or absence and the magnitude of the magnetism of the N-pole regions and S-pole regions are both controllable. It can be understood that the N-pole regions and S-pole regions themselves do not have magnetism but are magnetic conductors. It is through electromagnetic effects or permanent magnets that the N-pole regions and S-pole regions become magnets with corresponding magnetism. Specifically, an electromagnet circuit can be constructed through electromagnetic effects. When the switch is closed, the N-pole regions and S-pole regions exhibit the N-pole and S-pole of a magnet; when the switch is opened, the N-pole regions and S-pole regions are completely demagnetized. As an alternative embodiment, a permanent magnet can also be controlled by hand or a mechanical structure so that the N-pole of the permanent magnet contacts the N-pole region of the magnetic control table 2, and the S-pole of the permanent magnet contacts the S-pole region of the magnetic control table 2.

[0047] In addition, the N-pole regions and S-pole regions do not touch each other. Therefore, the overall 4 magnetic pole regions present a "field" shape design, and the N-pole regions and S-pole regions can be designed either as convex with respect to the upper surface of the cylindrical surface of the magnetic control table 2 or as in the same plane as the upper surface of the cylindrical surface.

[0048] Please refer to Figure 4 , Figure 5 and Figure 6 , the magnetic conductor mainly includes an outer magnetic conductor 5, an inner magnetic conductor 6, and a spherical magnetic conductor 7. Among them, both the outer magnetic conductor 5 and the inner magnetic conductor 6 are petal-shaped designs, and the number of the outer magnetic conductor 5 and the inner magnetic conductor 6 is equal and equal to the number of magnetic pole regions. One outer magnetic conductor 5 is provided on the upper surface of each magnetic pole region, and the outer magnetic conductors 5 do not touch each other complementarily. It can be understood that the outer magnetic conductor 5 is placed on the magnetic pole region, and there is no connection relationship between them. The structure formed by the 4 outer magnetic conductors 5 in space presents a cylinder, and a cylindrical cavity perpendicular to the magnetic control table 2 is formed inside the cylinder. A cylinder is provided inside the cylindrical cavity, and the cylinder includes a first non-magnetic frame 3 and a piston 8. Among them, the first non-magnetic frame 3 is made of non-magnetic conductive material, and its overall structure is: a hollow cylinder with an open upper bottom surface and a closed lower bottom surface, and three partitions and a trachea 31 are evenly provided on the side surface of the hollow cylinder. The partitions are integrally formed with the hollow cylinder, and their spatial distribution is in the gap between two outer magnetic conductors 5 to prevent the outer magnetic conductors 5 from being pushed by the workpiece when releasing stress and causing different outer magnetic conductors 5 to contact each other. The trachea 31 is mainly used to connect to an air pump externally, and air is filled and discharged into the cylinder through the trachea 31 to adjust the air pressure in the cylinder, unload the gravity of the workpiece, and drive the inner magnetic conductor 6 arranged above the cylinder to move in the height direction.

[0049] The piston 8 is arranged in the hollow cavity of the first non-magnetic frame 3. The overall structure of the piston 8 is a hollow cylinder with a closed upper bottom surface and an open lower bottom surface. The outer side of the piston 8 is sealed and connected to the first non-magnetic frame 3 through a sealing ring 81. The first non-magnetic frame 3 and the piston 8 form a cylinder structure. The gas in the cylinder is filled or drawn out through the air pipe 31, driving the piston 8 to move upward or downward along the first non-magnetic frame 3, thereby pushing the inner conductive magnet 6 above it to move.

[0050] The structure composed of four inner magnets 6 is also cylindrical, and is arranged in the cavity composed of the outer magnet 5, located above the cylinder, and in contact with the upper surface of the piston 8. The inner magnets 6 correspond to the outer magnets 5 one by one, and the inner magnets 6 contact the corresponding outer magnets 5, but different inner magnets 6 do not contact each other. To ensure the magnetic isolation between the inner magnets 6, please refer to Figure 7 A second non-magnetic frame 4 is arranged in the gap between the inner magnets 6. The second non-magnetic frame 4 is in a "cross" shape and is composed of two mutually perpendicular non-magnetic plates to prevent the inner magnets 6 from contacting each other. The upper base of the cylindrical structure formed by the second non-magnetic frame 4 and the inner magnets 6 is a concave spherical surface, and a spherical magnet 7 is arranged in the concave spherical surface. The lower surface of the spherical magnet 7 is matched with the concave spherical surface, that is, the surface shape is consistent, which facilitates the spherical magnet 7 to rotate with three degrees of freedom. The upper surface of the spherical magnet 7 is a smooth plane, and a threaded blind hole is arranged at the center position. The support plate 1 can be fixedly connected to the upper surface of the spherical magnet 7 by bolts.

[0051] Based on the above structure, the supporting process of the auxiliary supporting device and the stress release principle of the workpiece are described as follows:

[0052] First, design the number and support points of the auxiliary support device according to the size of the workpiece, fix the auxiliary support device and the workpiece to the workpiece table of the processing equipment, disconnect the magnetic control switch of the magnetic control table 2, so that there is no magnetic field inside the auxiliary support device, and all magnetic conductors are in a relaxed state. Fix the workpiece and the support plate 1 by bolts or bonding, adjust the auxiliary support device, and adjust the posture of the workpiece to a suitable position. Inflate or exhaust air into the cylinder through the air pipe 31, and adjust the air supply pressure of the cylinder to a suitable value. The pressure value needs to be adjusted according to the weight of the workpiece, so that the supporting force of the cylinder is equivalent to the gravity of the workpiece, so as to achieve the support preload, unload the gravity of the workpiece, and avoid the gravity of the workpiece affecting the stress release in the subsequent processing process.

[0053] Close the magnetic switch of magnetic control table 2 to form an adsorption magnetic field. For details, please refer to Figure 8, describing the magnetic transfer process, after the magnetic control switch is turned on, the N-pole region has magnetism, showing the N-pole of the magnet, and accordingly, the magnetism will be transferred from the N-pole region to the outer magnet 5 above the N-pole region. The outer magnet 5 does not contact other outer magnets 5, and no magnetic transfer will occur. However, the outer magnet 5 contacts the corresponding inner magnet 6, so the magnetism will be transferred from the outer magnet 5 to the corresponding inner magnet 6. The inner magnet 6 contacts the spherical magnet 7, so the magnetism will be transferred to the spherical magnet 7. Since the magnetism between adjacent magnetic pole regions is opposite, the magnetism of the N-pole region will be transferred from the spherical magnet 7 to the corresponding inner magnet 6 above the S-pole region, and then from the inner magnet 6 to the corresponding outer magnet 5 above the S-pole region, and finally return to the S-pole region to form a magnetic loop. Therefore, after the magnetic control switch is turned on, the corresponding outer magnet 5 and inner magnet 6 above the N-pole region present as the N-pole of the magnet; the corresponding outer magnet 5 and inner magnet 6 above the S-pole region present as the S-pole of the magnet, forming a magnetic field. Under the action of the magnetic field, the adjacent outer magnets 5 attract each other, and the inner magnets 6 attract each other. Under the action of the mutual attraction between the outer magnets 5, pressure is generated between the outer magnet 5 and the first non-magnetic frame 3, thereby increasing the static friction force and achieving the locking of the workpiece position. During the workpiece processing, the static friction force can ensure that the workpiece will not further push the auxiliary support device to move after being subjected to the processing force.

[0054] In addition, since the static friction force is proportional to the positive pressure caused by the mutual attraction between the magnetic conductors, the positive pressure can be adjusted by adjusting the size of the magnetic field, and then the maximum static friction force can be adjusted. When the processing force is greater than the maximum static friction force, the magnetic support will have a protective displacement, that is, the auxiliary support device is forced to displace, which can play a role in safety protection of the workpiece and avoid damage to the workpiece caused by the rigid support.

[0055] After closing the magnetic control switch of the magnetic control table 2, the workpiece can be processed. During the processing, the magnetic control switch can be opened and closed multiple times to achieve the locking and loosening of the workpiece, thereby achieving the release of the internal stress of the workpiece. Specifically, during the processing of the workpiece, stress will be generated inside the workpiece. In order to avoid the stress causing the workpiece to deform and affect the processing accuracy, the magnetic control switch is opened once in a while to make the magnetic field inside the auxiliary support device disappear, and the static friction caused by the magnetic attraction also disappears. A plane kinematic pair is formed between the magnetostat 2 and the outer magnet 5. Under the action of the internal stress of the workpiece, a relative small displacement can be achieved between the magnetostat 2 and the outer magnet 5 to eliminate the stress in the horizontal direction; a cylindrical kinematic pair is formed between the outer magnet 5 and the inner magnet 6. Under the action of the internal stress of the workpiece, the inner magnet 6 can achieve a small displacement in the height direction to eliminate the stress in the vertical direction; a spherical magnet 7 and the concave spherical surface on the upper surface of the inner magnet 6 form a spherical rotation kinematic pair. Under the action of the internal stress of the workpiece, the spherical magnet 7 can achieve spherical rotation to eliminate the stress in the spherical rotation direction, and a total of 6 degrees of freedom stress release is achieved. After the stress is released, the magnetic control switch is closed again to lock the workpiece and continue the subsequent processing. Repeat the above workpiece locking and stress release process until the workpiece is processed. The auxiliary support device can not only realize the 6 degrees of freedom locking and positioning support in the process of the craft, but also continuously release the workpiece stress to avoid the workpiece stress affecting the workpiece processing surface shape accuracy. During the stress release process, if the displacement of the magnetizer is too large, the cylinder can be used to compensate in the height direction, or the position of the magnetron 2 can be adjusted.

[0056] In short, the above description is only a preferred embodiment of this specification and is not intended to limit the protection scope of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included in the protection scope of this specification.

[0057] The systems, devices, modules or units described in one or more of the above embodiments may be implemented by a computer chip or entity, or by a product having a certain function. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0058] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0059] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0060] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Claims

1. An auxiliary support device, characterized in that: include: Support plate, magnetic control table, cylinder, outer magnet, inner magnet and spherical magnet; Wherein, the magnetic control table is provided with a magnetically controllable array, in which N-pole regions and S-pole regions which do not touch each other are alternately arranged; An outer magnet is arranged on each N-pole region and S-pole region, and the outer magnets do not contact each other; the interior of the structure composed of all the outer magnets forms a cavity perpendicular to the magnetic control table; the cylinder is located in the cavity, and the upper surface of the cylinder is provided with inner magnets equal to the number of the outer magnets, and the inner magnets are in one-to-one contact with the outer magnets, and the inner magnets do not contact each other; The spherical magnetizer is located on the upper surface of the structure composed of all inner magnetizers. The upper surface of the structure composed of all inner magnetizers is a concave spherical surface. The lower surface of the spherical magnetizer is a convex spherical surface matched with the concave spherical surface. The upper surface of the spherical magnetizer is connected to the support plate.

2. The auxiliary support device according to claim 1, characterized in that: The magnetic control table is provided with a 2×2 array, and the magnetic size and presence of the N-pole region and the S-pole region in the array are controllable.

3. The auxiliary support device according to claim 2, characterized in that: The magnetism of the N-pole region and the S-pole region is controlled by an electromagnetic switch or by a permanent magnet.

4. The auxiliary support device according to claim 3, characterized in that: The N-pole region and the S-pole region are in a magnetic state, and conduct magnetism along the outer magnetic conductor, the inner magnetic conductor, and the spherical magnetic conductor in sequence, so that the adjacent outer magnetic conductors attract each other, and the adjacent inner magnetic conductors attract each other, and the positioning and retraction of the workpiece is realized through the support plate; When the N-pole region and the S-pole region are in a non-magnetic state, there is no attraction between adjacent outer magnets, and there is no attraction between adjacent inner magnets. The workpiece is displaced by pushing the outer magnets, inner magnets and spherical magnets to achieve stress release.

5. The auxiliary support device according to claim 1, characterized in that: All the outer magnetic conductive structures and all the inner magnetic conductive structures are cylindrical.

6. The auxiliary support device according to claim 1, characterized in that: The cylinder includes a first non-magnetic frame and a piston. The first non-magnetic frame includes: a hollow cylinder with an open upper bottom surface and a closed lower bottom surface, and three spacers and an air pipe are evenly arranged on the side of the cylinder. The spacers and the air pipe are both located between adjacent external magnetic conductors to prevent the external magnetic conductors from contacting each other.

7. The auxiliary support device according to claim 6, characterized in that: The piston is arranged in the first non-magnetic frame and is sealed with the inner cavity of the first non-magnetic frame through a sealing ring. Air is charged and discharged into the first non-magnetic frame through the air pipe, and the air pressure is used to push the magnetic conductor in the upper surface of the cylinder to move up and down.

8. The auxiliary support device according to claim 1, characterized in that: It also includes a second non-magnetic frame, which is in a "cross" shape and consists of two non-magnetic plates that are perpendicular to each other. The second non-magnetic frame is located between the inner magnetic conductors to prevent the inner magnetic conductors from contacting each other.

9. The auxiliary support device according to claim 6, characterized in that: By controlling the magnetic magnitudes of the N-pole region and the S-pole region, the static friction force between the outer magnetic conductor and the first non-magnetic frame can be adjusted.

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