A block and clamp device

Abstract

The application discloses a split block and an adaptive clamping device, and belongs to the technical field of machining. The split block comprises a main body seat and a split clamp body. The main body seat is used for being fixed to a clamping area. The split clamp body comprises multiple levels of clamp bodies. Each level is provided with multiple clamp bodies. One side of each clamp body, which is opposite to the main body seat, is a clamping surface. Multiple clamp bodies of a first level are rotationally connected to the main body seat. In multiple clamp bodies of adjacent levels, adjacent corresponding clamp bodies are rotationally connected, and the clamping surfaces of the clamp bodies of the n level are in contact. Multiple clamp bodies of the same level are spaced apart and independent of each other. The clamping surfaces of multiple clamp bodies of the N level are in contact with the outer surface of a workpiece to be clamped, thereby forming multiple contact points. The adaptive clamping device comprises a chuck and multiple split blocks. Multiple split blocks are spaced apart and installed on the chuck, and the split clamp positions of the split blocks are opposite to each other. The application can adapt to different special-shaped workpieces, automatically adjust and match the special-shaped workpieces, and realize automatic adaptation to the shapes of the special-shaped workpieces.

Description

Technical Field

[0001] This application belongs to the field of machining technology, and in particular relates to a row block and an adaptive clamping device. Background Technology

[0002] In CNC machining, the ability to process complex and irregularly shaped workpieces is limited by clamping technology. Clamping irregularly shaped workpieces can be achieved by designing specific tooling, but the design and manufacture of such tooling prolongs the manufacturing cycle and leads to wasted funds and low asset utilization. Alternatively, the manufacturing process can be modified, but this modification increases the complexity of the steps and the cumbersome operation for personnel. For relatively complex irregularly shaped workpieces, the inability to clamp and fix them properly renders them unprocessable, negatively impacting subsequent scientific research and experiments.

[0003] Existing clamping devices have difficulty adapting to the shape of irregularly shaped workpieces, which can easily lead to loose clamping or slippage. Utility Model Content

[0004] This application aims to solve the technical problem of difficulty in shape adaptation in existing clamping devices. To this end, this application provides a dividing block and an adaptive clamping device that can adapt to different irregular workpieces, automatically adjust and match with the irregular workpiece, and realize automatic adaptation and fixed clamping of the irregular workpiece shape.

[0005] In a first aspect, embodiments of this application provide a line break block, which includes:

[0006] Main body base, used to fix it to the clamping area;

[0007] The graded clamp includes multiple clamp bodies, with each grade having multiple clamp bodies. The side of each clamp body facing away from the main body is the clamping surface. Multiple clamp bodies of the first grade are rotatably connected to the main body. In the multiple clamp bodies of adjacent grades, each clamp body of grade n is rotatably connected to multiple clamp bodies of grade n+1, and they contact the clamping surface of the clamp body of grade n. Multiple clamp bodies of the same grade are spaced apart and independent of each other. The clamping surfaces of multiple clamp bodies of grade N are used to contact the surface of the workpiece to be clamped in a rotatable manner, forming multiple contact points. Here, n is an integer greater than or equal to 1, and the maximum value of n is N.

[0008] In some embodiments, the first contact surface between the main body and the first-level clamp body, and the second contact surface between the n-level clamp body and the corresponding connected n+1-level clamp body are both set as arc-shaped surfaces, so that the first-level clamp body and the main body are rotated and fitted together, and the n+1-level clamp body and the corresponding connected n-level clamp body are rotated and fitted together.

[0009] In some implementations, the curvature of the first contact surface and the rotation radius of the first-stage clamp relative to the main body satisfy the radius of curvature formula.

[0010] In some implementations, the curvature of the second contact surface and the rotation radius of the n+1-level clamp relative to the n-level clamp satisfy the radius of curvature formula.

[0011] In some embodiments, a first magnet and a second magnet are also included, with opposite magnetic surfaces of the first magnet and the second magnet; the first magnet is disposed on the main body base, and the second magnet is disposed on the clamping body of the first level, or the first magnet is disposed on the clamping surface of the clamping body of the nth level, and the second magnet is disposed on the corresponding clamping body of the n+1th level.

[0012] In some embodiments, the first magnet and the second magnet are a group; multiple groups of first magnets and second magnets are respectively disposed on the main body base, the first-level clamp body, or respectively disposed on the clamp body of the nth level and the corresponding clamp body of the n+1th level.

[0013] In some embodiments, the side of each clamp body facing the main body is provided with a slot, so that the corresponding clamp bodies of adjacent levels and the clamp body of the main body and the clamp body of the first level are limited and locked in the direction of rotation axis.

[0014] Secondly, embodiments of this application provide an adaptive clamping device, including a chuck and a plurality of the above-mentioned dividing blocks, wherein the plurality of dividing blocks are installed on the chuck at intervals, and the dividing clamps of each dividing block are positioned relative to each other.

[0015] In some embodiments, the chuck includes a chuck base and three jaws, which are spaced apart in a triangular arrangement. Each jaw is connected to a main body base in a one-to-one correspondence, enabling each graded clamp to hold the surface of the workpiece to be clamped from three directions.

[0016] In some embodiments, the chuck also includes multiple locking elements connected to the jaws for securing the jaws to the chuck seat.

[0017] As can be seen from the above technical solution, the beneficial effects of this application are as follows:

[0018] 1. The dividing block of this application provides clamping support and operating basis for the grading clamp through the main body. The grading clamp includes multiple levels, and the clamp body of each level can rotate. Multiple clamp bodies of the first level are rotatably connected to the main body, and corresponding clamp bodies of adjacent levels are rotatably connected to each other, thus forming multiple clamp bodies that can rotate at multiple levels. The clamp bodies of different levels transmit the rotation angle step by step. The multiple clamp bodies of the Nth level have sufficient rotational freedom relative to the main body, so that they can match and contact the surface of the workpiece to be clamped. The clamping surfaces of the multiple clamp bodies of the Nth level can contact the outer surface of the workpiece to be clamped, forming multiple contact points, thereby adapting to different irregular workpieces, automatically adjusting and matching with the irregular workpiece, and realizing automatic adaptation to the shape of the irregular workpiece.

[0019] 2. The clamping device of this application applies force from different directions to the workpiece to be clamped through multiple dividing blocks, which enables the grading clamps on the multiple dividing blocks to rotate within a certain angle, so as to match the surface of the workpiece to be clamped between the multiple dividing blocks, and thus the multiple dividing blocks can fix the workpiece to be clamped tightly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced one by one below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other embodiments and drawings can be obtained based on these drawings without creative effort. Various schematic diagrams according to the embodiments of this application are shown in the accompanying drawings. These drawings are not necessarily drawn to scale. For the purpose of clarity, some details have been enlarged and some details may have been omitted.

[0021] Figure 1 A perspective view of an embodiment of the row-dividing block of this utility model is shown;

[0022] Figure 2 A top-view perspective view of an embodiment of the row-blocking mechanism of this utility model is shown;

[0023] Figure 3 A partial schematic diagram of an embodiment of the line divider block of this utility model is shown;

[0024] Figure 4 A top view schematic diagram of an embodiment of the adaptive clamping device of this utility model is shown;

[0025] Reference numerals: 100, dividing block; 101, jaws; 110, main body base; 111, positioning groove; 120, grading clamp; 1201, clamping surface; 1202, first contact surface; 1203, second contact surface; 121, primary clamp body; 122, secondary clamp body; 130, magnet; 131, first magnetic component; 132, second magnetic component; 200, chuck; 210, chuck base; 220, chuck claw; 230, locking component. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application. The described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments in this application, they can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] This application is described below with reference to the accompanying drawings and specific embodiments:

[0028] Please refer to Figure 1 According to a first aspect of this application, a dividing block 100 is provided, comprising: a main body 110 and a classifying clamp 120, the classifying clamp 120 being rotatably connected to the main body 110. The main body 110 is used to fix to the clamping area, and the main body 110 is block-shaped, serving as the base part of the dividing block 100 and providing support for the classifying clamp 120; the classifying clamp 120 includes multiple clamping bodies, which are arranged in layers along the direction of clamping force, with multiple clamping bodies in each level. The side of each clamping body opposite to the main body 110 is a clamping surface 1201, which faces the workpiece to be clamped. The multiple clamping bodies of a level are rotatably connected to the main body 110, and each clamping body of a level is referred to as a level clamping body 121. The level clamping body 121 and the main body 110 can be connected by a conventional rotating connection structure, such as a hinge connection, pivot connection, or pin connection, so that the level clamping body 121 and the main body 110 are connected by a conventional rotating connection structure. The clamps can rotate at a certain angle; in multiple clamps of adjacent levels, each clamp of level n is rotatably connected to multiple clamps of level n+1, such as two clamps connected to the clamp of the previous level 121, forming multi-level clamps in this manner, and the size of the clamp of level n+1 is smaller than that of the clamp of level n, and the clamp of level n+1 contacts the clamp of level n on the clamping surface 1201 of the clamp of level n; the multiple clamps of the same level are spaced apart and independent of each other, that is, different clamps of the same level can rotate independently without affecting each other, and the clamping surface 1201 of the multiple clamps of level N is used to contact the surface of the workpiece to be clamped in a rotating manner, forming multiple contact points; where n is an integer greater than or equal to 1, and the maximum value of n is N, such as Figure 1 The middle part is a two-level hierarchical clamp 120 structure with N=2.

[0029] The existing clamping device has a problem with the shape adaptation of its jaws 101 during clamping. One side of the jaws 101 cannot match the workpiece to be clamped well. This is due to the irregularity of the shape of the irregular workpiece and the clamping edge. The surface of the irregular workpiece and the clamping edge cannot make good contact or fit well. Some can only achieve point and local clamping, resulting in unstable contact. In this application, the main body 110 provides clamping support and operating basis for the grading clamp 120. The grading clamp 120 includes multiple levels, and the clamp body of each level can rotate. Multiple clamp bodies of the first level are rotatably connected to the main body 110, and corresponding clamp bodies of adjacent levels are rotatably connected to each other, thus forming multiple clamp bodies that can rotate at multiple levels. The clamp bodies of different levels transmit the rotation angle step by step. The multiple clamp bodies of the N levels have sufficient rotational freedom relative to the main body 110, so that they can match and contact the surface of the workpiece to be clamped. The clamping surface 1201 of the multiple clamp bodies of the N levels can contact the outer surface of the workpiece to be clamped, forming multiple contact points, thereby adapting to different irregular workpieces, automatically adjusting and matching with the irregular workpiece, and realizing automatic adaptation to the shape of the irregular workpiece.

[0030] Please refer to Figure 2 In some embodiments, the first contact surface 1202 between the main body 110 and the first-level clamp 121, and the second contact surface 1203 between the n-level clamp and the corresponding connected n+1-level clamp, are all designed as arc-shaped surfaces, so that the first-level clamp 121 and the main body 110 rotate and fit together, and the n+1-level clamp and the corresponding connected n-level clamp rotate and fit together. Due to the arc-shaped surface design, the main body 110 contacts and rotates and fits together with the first-level clamp 121, and the main body 110 can provide support for the first-level clamp 121. Furthermore, between adjacent levels of clamps, the n-level clamp and the n+1-level clamp rotate and fit together, and the n-level clamp can provide support for the n+1-level clamp. In this way, when the graded clamp 120 fits together with the outer surface of the workpiece to be clamped, the clamps at each level can transmit force and rotation angle step by step. This application adopts a multi-level clamping structure. The N-level multiple clamping bodies increase the contact area, thereby expanding the clamping shape range and the ability to clamp irregularly shaped workpieces, and reducing the deformation and damage of workpieces during the clamping process of the dividing block 100.

[0031] In some embodiments, the graded clamp 120 includes a primary clamp body 121 and a secondary clamp body 122. The primary clamp body 121 is connected to the main body 110 in the manner described above. The arrangement between the secondary clamp body 122 and the primary clamp body 121 is the same as the arrangement between the n-level clamp body and the n+1-level clamp body described above. Multiple secondary clamp bodies 122 are rotatably connected to the primary clamp body 121, and the arc-shaped surface of each secondary clamp body 122 is fitted to the primary clamp body 121. The clamping surface of the secondary clamp body 122 is set as a flat surface or an arc-shaped surface, which can be determined according to the shape of the workpiece to be clamped.

[0032] In some embodiments, the curvature of the first contact surface 1202 and the rotation radius of the first-level clamp 121 relative to the main body 110 satisfy the radius of curvature formula. In some embodiments, the curvature of the second contact surface 1203 and the rotation radius of the (n+1)th-level clamp relative to the nth-level clamp satisfy the radius of curvature formula. The first contact surface 1202 and the second contact surface 1203 are the contact surfaces between the grading clamp 120 and the main body 110, and inside the grading clamp 120. The curvature of each contact surface and the rotation radius of the corresponding clamp satisfy the radius of curvature formula, which ensures that the clamps of each level can always remain in contact with the clamping surface 1201 during rotation. This facilitates force transmission and provides support between clamps of different levels.

[0033] The radius of the arc of the first contact surface 1202 and the second contact surface 1203 at each stage of machining, or the radius of the arc of each contact surface during assembly, can be determined by the curvature of each contact surface. The curvature of the curve is the rate of rotation of the tangent direction angle with respect to the arc length at a certain point on the curve, indicating the degree to which the curve deviates from a straight line. For the curve, it is the radius of the arc closest to the curve at that point. The radius of curvature is the radius of the circle that best suits the normal cross section or its combination. Therefore, the machining dimensions of each clamp body of the grading clamp 120 can be derived by using the radius of curvature.

[0034] Please refer to Figure 3 In some embodiments, the dividing block 100 is further provided with a magnet 130, which includes a first magnet 130 and a second magnet 130. The opposite end faces of the first magnet 130 and the second magnet 130 are of opposite magnetic properties. The first magnet 130 is disposed on the main body base 110, and the second magnet 130 is disposed on the first-level clamp 121, or the first magnet 130 is disposed on the clamping surface 1201 of the n-level clamp, and the second magnet 130 is disposed on the corresponding clamp of the n+1-level clamp. Specifically, a slot is formed on the surface of the main body 110 facing the first-stage clamp 121. The shape and size of the first magnet 130 match the slot, and the first magnet 130 is embedded in the slot. Another slot is formed on the surface of the first-stage clamp 121 facing the main body 110, and the shape and size of the second magnet 130 also match the slot, and the second magnet 130 is embedded therein. Due to the opposite magnetic properties, a magnetic attraction force is generated between the first magnet 130 and the second magnet 130. Similarly, the same arrangement is used between the clamps of adjacent stages. The clamps of stage n and stage n+1 interact through the first magnet 130 and the second magnet 130. In this way, under the action of the first magnet 130 and the second magnet 130, the first-stage clamp 121 and the main body 110, and the corresponding clamps of adjacent stages, can automatically return to their original positions.

[0035] In some embodiments, the first magnet 130 and the second magnet 130 are a group; multiple groups of the first magnet 130 and the second magnet 130 are respectively disposed on the main body base 110, the first-level clamp 121, or respectively disposed on the clamp of the nth level and the corresponding clamp of the n+1th level. Both the first magnet 130 and the second magnet 130 are magnets and are block-shaped. It is necessary to ensure that the opposite end faces of the first magnet 130 and the second magnet 130 are of opposite magnetic properties during installation. In order to balance the force, two groups of the first magnet 130 and the second magnet 130 can be disposed between the main body base 110 and the first-level clamp 121, or between the corresponding clamps of adjacent levels, respectively located near the two sides of the clamp itself. The above settings serve two purposes: first, to ensure that each clamping body does not rotate out of the limit and has a limiting effect within the effective clamping range; second, after the jaw 101 deforms and rotates, the principle of like poles repulsion of magnets is used to use magnetic force to make the movable jaw 101 reset itself, ensuring that the position of the jaw 101 before and after clamping is consistent, and ensuring that the clamping effect is stable each time.

[0036] In some embodiments, each level of clamp body has a slot facing the main body 110, which limits and locks the corresponding clamp bodies of adjacent levels, and the main body 110 and the first-level clamp body 121, in the direction of rotation. The slots enable the opening, closing, and rotation of the jaws 101, thereby ensuring that each clamp body of the N levels can adapt to the shape of complex irregular structures, increasing the contact points between the grading clamp 120 and irregular workpieces, and increasing the relative contact area. The slots and rotating structure between adjacent clamp bodies give the grading clamp 120 body high rigidity, adjustable gap between the jaws 101 and the workpiece, making it suitable for heavy-duty applications and providing high clamping accuracy.

[0037] In some embodiments, the slot is designed as a dovetail groove, that is, the middle of the side of the clamp body facing the main body 110 is recessed relative to the two ends. The slot makes the position and gap between adjacent clamp bodies adjustable, and the clamp body has high rigidity. The contact area between adjacent clamp bodies is small, the friction is small, and it can withstand a larger load. The wear between adjacent clamp bodies is small, so the grading clamp 120 has a long service life.

[0038] Please refer to Figure 4According to a second aspect of this application, an adaptive clamping device is provided, including a chuck 200 and a plurality of the above-mentioned row blocks 100. The plurality of row blocks 100 are installed at intervals on the chuck 200, and the grading clamps 120 of each row block 100 are positioned opposite each other. The row block 100 and the chuck 200 can be connected by welding or by detachment. For example, the row block 100 can be bolted to the chuck 200. The multiple row blocks 100 are arranged at intervals so that the clamping surfaces 1201 of the graded clamps 120 on each row block are arranged in opposite directions. The multiple row blocks 100 fix the workpiece to be clamped from multiple directions, ensuring that the jaws 101 adapt to the shape of complex irregular structures. In this way, the multiple row blocks 100 can approach each other to clamp the irregular workpiece. At the same time, the clamps of different levels rotate and adapt to the shape of the irregular workpiece. The clamps of multiple N-level clamps fit against the surface of the irregular workpiece and are fixed and clamped. After clamping, the jaws 101 are opened, and the clamps of each level of the multiple row blocks 100 can automatically return to their initial positions after being separated from the irregular workpiece.

[0039] Existing clamping devices suffer from difficulties in adapting the shape of their jaws 101 during clamping, resulting in inadequate matching and secure clamping of the workpiece. In contrast, the clamping device of this application applies forces from different directions to the workpiece via multiple dividing blocks 100. This allows the graded clamps 120 on the dividing blocks 100 to rotate within a certain angle, ensuring surface contact and matching between the dividing blocks 100 and the workpiece, thereby securing the workpiece securely. This design provides higher rigidity and stability, enabling it to withstand heavy workloads while maintaining precise positioning and offering high-precision clamping action. Furthermore, it provides flexible clamping for irregularly shaped workpieces, achieving conformal clamping and automatic resetting, reducing the time required for manual resetting of the jaws 101 during clamping.

[0040] Please refer to Figure 4 In some embodiments, the chuck 200 includes a chuck base 210 and three jaws 220, which is the existing three-jaw chuck structure. The three jaws 220 are arranged in a triangular pattern with their inner ends facing each other. The jaws 220 are provided with threaded holes, and the main body 110 of the dividing block 100 is provided with corresponding threaded holes. Screws can be used to fix the main body 110 to the jaws 220. The jaws 220 are provided with positioning holes, and the chuck base 210 is also provided with corresponding connecting holes in three different radial directions. The jaws 220 can be connected and fixed to the chuck base 210 through the positioning holes and connecting holes. The jaws 220 are connected to the main body 110 one-to-one, so that each dividing clamp 120 can clamp the outer surface of the workpiece to be clamped from three directions.

[0041] In some embodiments, the chuck 200 further includes multiple locking elements 230 connected to the jaws 220 for fixing the jaws 220 to the chuck seat 210. The locking elements 230 can be screws or bolts, and they fix the jaws 220 to the chuck seat 210 through threaded holes in the jaws 220. The position of the jaws 220 relative to the chuck seat 210 is flexibly adjustable to accommodate workpieces of different sizes. Each jaw 220 can be connected to at least two locking elements 230, and the multiple locking elements 230 position and fix the three jaws 220 to accommodate the workpieces to be clamped.

[0042] Regarding the specific implementation methods of this application, it should be noted that:

[0043] In the description of this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," "connected," etc., should be interpreted broadly. For example, "fixed" can refer to a fixed connection, a detachable connection, or an integral molding; "connection" can refer to a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components or the interaction between two components, unless otherwise expressly limited; "connected" can refer to the internal connection of two parts and the connection between two parts, or the spatial connection between them, whereby the two parts are directly or indirectly connected through the part forming the space. The terms "set," "installed," "equipped with," "configured," etc., should also be interpreted broadly. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] In the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the system or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. All directional indications are only used to explain the relative positional relationship and movement between components in a specific orientation. If the specific orientation changes, the directional indication will also change accordingly.

[0045] In the description of this application, the use of terms such as "some embodiments," "optional embodiments," "example," "specific example," "optional example," or "optional embodiment," etc., indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application, but does not imply that these embodiments illustrate and describe all possible forms of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0046] The present invention has been described in detail above with reference to specific embodiments and exemplary examples. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments; the above description should not be construed as a limitation of the present invention. Technical solutions between various embodiments can be combined with each other, but must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application. Although embodiments of the present application have been shown and described, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. Those skilled in the art will understand that various other specific changes and combinations of embodiments based on the technical teachings disclosed in this application, without departing from the essence of the present application, are still within the scope of protection defined by the claims of the present invention and their equivalent technical solutions.

Claims

1. A line break block, characterized in that, include: Main body (110) for fixing to the clamping area; A graded clamp (120) includes multiple clamp bodies, with multiple clamp bodies in each grade. The side of each clamp body facing away from the main body (110) is a clamping surface (1201). Multiple clamp bodies in one grade are rotatably connected to the main body (110). In adjacent grades, each clamp body in grade n is rotatably connected to multiple clamp bodies in grade n+1, and they contact the clamping surface (1201) of the clamp body in grade n. Multiple clamp bodies in the same grade are spaced apart and independent of each other. The clamping surface (1201) of the multiple clamp bodies in grade N is used to contact the outer surface of the workpiece to be clamped in a rotatable manner, forming multiple contact points. Here, n is an integer greater than or equal to 1, and the maximum value of n is N.

2. The line break block according to claim 1, characterized in that, The first contact surface (1202) between the main body base (110) and the first contact surface (1203) between the n-level clamp body and the corresponding connected n+1-level clamp body are all set as arc surfaces, so that the first-level clamp body and the main body base (110) rotate and fit together, and the n+1-level clamp body and the corresponding connected n-level clamp body rotate and fit together.

3. The line break block according to claim 2, characterized in that, The curvature of the first contact surface (1202) and the rotation radius of the first-order clamp relative to the main body (110) satisfy the curvature radius formula.

4. The line break block according to claim 2, characterized in that, The curvature of the second contact surface (1203) and the rotation radius of the clamp body at level n+1 relative to the clamp body at level n satisfy the curvature radius formula.

5. The line break block according to claim 1, characterized in that, It also includes a first magnet (130) and a second magnet (130), the opposite end faces of the first magnet (130) and the second magnet (130) are opposite magnetic; the first magnet (130) is disposed on the main body seat (110), the second magnet (130) is disposed on the clamping body of the first level, or the first magnet (130) is disposed on the clamping surface (1201) of the clamping body of the nth level, and the second magnet (130) is disposed on the corresponding clamping body of the n+1th level.

6. The line break block according to claim 5, characterized in that, The first magnet (130) and the second magnet (130) are a group; multiple groups of the first magnet (130) and the second magnet (130) are respectively disposed on the main body base (110), the first-level clamp body, or respectively disposed on the clamp body at the nth level and the corresponding clamp body at the n+1th level.

7. The line break block according to claim 1, characterized in that, Each of the clamps at each level has a slot facing the main body (110) so that the corresponding clamps of adjacent levels and the clamps of the main body (110) and the clamps of the first level are locked in a limiting and locking manner in the rotation axis direction.

8. An adaptive clamping device, characterized in that, It includes a chuck (200) and a plurality of line blocks as described in any one of claims 1-7, wherein the plurality of line blocks are installed at intervals on the chuck (200) and the grading clamps (120) of each line block are positioned opposite each other.

9. The adaptive clamping device according to claim 8, characterized in that, The chuck (200) includes a chuck base (210) and three jaws (220). The three jaws (220) are arranged in a triangular pattern and are connected to the main body base (110) in a one-to-one correspondence, so that each of the graded clamps (120) can clamp the surface of the workpiece to be clamped from three directions.

10. The adaptive clamping device according to claim 9, characterized in that, The chuck (200) also includes a plurality of locking members (230), which are connected to the jaws (220) and are used to fix the jaws (220) to the chuck seat (210).

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