Multi-angle adjustable polishing support device for machining

Abstract

The utility model belongs to the technical field of mechanical processing workpiece polishing, and disclose a kind of multi-angle adjustable polishing support device for machining, to solve the problem of low polishing efficiency of special-shaped workpiece, poor adaptability.This device is with double-layer support base as rigidity base, realize core regulating function by three-dimensional multidirectional adjusting platform, combine bench vice fixed platform, four sets of adjusting components and upper fixed plate constitute complete system, its core lies in the synergic control of four sets of adjusting components, component is made of ball joint and electric control servo telescopic link closed loop regulating link, realize three-dimensional space angle regulation and control by accurate calculation telescopic amount, the multidirectional rotation of ball joint cooperates with the orientation limit of offset distance constraint hole, ensure that platform stable deflection;Stress balance design of upper and lower clamping improves the regulating accuracy and structural stability, bench vice fixed platform can quickly fix various workpieces, with platform synchronous change angle, so that special-shaped workpiece polishing surface can be flexibly adapted to grinding tool, significantly improve production efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of workpiece grinding technology in mechanical processing, specifically a multi-angle adjustable grinding support device for mechanical processing. Background Technology

[0002] In the field of machining, the application scope of irregularly shaped workpieces is constantly expanding, covering multiple high-end industries such as aerospace, automobile manufacturing, and precision instruments. Due to their complex structure, varied curvature, and stringent tolerance requirements, the surface grinding process for these workpieces has always been a technical challenge in the production process. Compared to workpieces with regular geometric shapes, grinding irregularly shaped workpieces faces greater challenges, especially in ensuring grinding accuracy and surface roughness consistency. Improving processing efficiency and reducing production costs have become key issues restricting the upgrading of related industries. Currently, the industry mainly relies on two traditional methods for grinding irregularly shaped workpieces. One method involves using specific conforming fixtures for clamping and processing. Technicians need to design a dedicated fixture based on the unique structure of each irregularly shaped workpiece, fixing the workpiece using a conforming structure and forcibly transforming the surface to be ground into a plane or regular angle compatible with the grinding wheel. While this method can guarantee grinding accuracy to a certain extent, it has significant limitations: the design and manufacturing cycle of dedicated fixtures is long, and the unit cost is high. Especially when workpiece batches are small and varied, the reuse rate of the fixtures is extremely low, significantly increasing production input. Furthermore, the fixtures lack adjustment flexibility; if the workpiece dimensions or surface parameters change slightly, the entire fixture may face the risk of being scrapped, making it difficult to adapt to the needs of flexible production. Secondly, for more complex irregularly shaped workpieces, companies often have to rely on manual grinding. Operators hold the grinding tools or workpieces and judge the grinding angle and force based on experience. However, the stability of manual operation is difficult to control: on the one hand, prolonged operation can easily lead to fatigue, causing quality defects such as scratches, dents, or over-grinding on the ground surface, requiring more manpower for subsequent repairs; on the other hand, manual grinding is extremely inefficient, especially for workpieces with multiple curved surfaces, where grinding a single piece can take 5-8 times longer than machining, severely restricting the overall production line cycle time. In addition, the metal dust and noise generated during manual grinding pose a threat to the health of operators, requiring companies to invest additional in protective equipment and health management costs, further increasing the production burden. As the manufacturing industry continues to demand higher product precision and production efficiency, traditional grinding methods are gradually becoming inadequate for modern production needs. The market urgently requires a universal grinding auxiliary device that can adapt to various irregularly shaped workpieces, flexibly adjust the grinding angle, and balance precision and efficiency. This would address industry pain points such as the high cost of specialized tooling and the inconsistent quality of manual grinding, thereby driving the automation and intelligent upgrading of the machining field. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a multi-angle adjustable grinding support device for machining, thereby solving the problems of low efficiency and high cost in existing irregular workpiece grinding operations mentioned in the background art.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a multi-angle adjustable grinding support device for machining, comprising: A double-layer support base, wherein the double-layer support base is a rigid support structure and is fixedly installed on the ground; A three-dimensional multi-directional adjustment platform, wherein the three-dimensional multi-directional adjustment platform is a square plate structure, wherein the three-dimensional multi-directional adjustment platform is set above the double-layer support base, and the three-dimensional multi-directional adjustment platform (2) is movable and retractable; A bench vise fixing table is fixedly mounted above a three-dimensional multi-directional adjustment platform, and multiple sets of T-slots are provided on the bench vise fixing table. Four sets of adjustment components are respectively located at the four corners of the three-dimensional multi-directional adjustment platform; The upper fixed plate is positioned directly above the three-dimensional multi-directional adjustment platform and is fixedly connected to the ceiling.

[0005] Preferably, the double-layer support base includes an upper support plate, a lower support plate, and multiple sets of support feet. The upper support plate and the lower support plate are fixed to the ground by the multiple sets of support feet, and both the upper support plate and the lower support plate are parallel to the ground.

[0006] Preferably, the three-dimensional multi-directional adjustment platform includes a central base plate and four sets of movable telescopic components. The central base plate has four sets of corner grooves, and the four sets of movable telescopic components are located at the four corners of the central base plate. Highly elastic ribs are provided at the adjacent locations of the four sets of movable telescopic components.

[0007] Preferably, the adjustment assembly includes a ball joint and an electrically controlled servo telescopic rod. The ball joint is fixedly mounted on the movable telescopic member, and the electrically controlled servo telescopic rod is fixedly mounted on the lower plate of the support base at the corresponding ball joint position, with the output direction of the electrically controlled servo telescopic rod being vertically upward.

[0008] Preferably, the ball joint includes a joint cavity, a multi-directional rotating ball core, an upper push rod, and a lower push rod. The joint cavity is fixedly connected to the movable telescopic member. A spherical cavity is formed inside the joint cavity, and the spherical cavity has two sets of opposing circular connecting holes to the outside. A rotatable multi-directional rotating ball core is provided inside the joint cavity. The upper push rod passes through one set of circular connecting holes and is fixedly connected to the multi-directional rotating ball core. The lower push rod passes through the other set of circular connecting holes and is fixedly connected to the multi-directional rotating ball core.

[0009] Preferably, both the upper and lower push rods are perfectly circular rods, their axes are coaxial, and their center lines pass through the center of the multi-directional rotating ball core.

[0010] Preferably, the upper plate of the support base has a lower offset constraint hole corresponding to the lower push rod, and all four sets of lower push rods pass through the lower offset constraint hole and are fixedly connected to the output rod of the electrically controlled servo telescopic rod.

[0011] Preferably, multiple sets of fixing rods are provided above the upper fixed plate, the upper fixed plate is fixedly connected to the ceiling through the fixing rods, and the upper fixed plate is parallel to the upper plate of the support base. Four sets of upper offset constraint holes corresponding to the upper top rods are opened on the upper fixed plate, and all four sets of upper top rods pass through the upper offset constraint holes.

[0012] Compared with the prior art, this utility model provides a multi-angle adjustable grinding support device for machining, which has the following advantages: This multi-angle adjustable grinding stand device for machining is equipped with a double-layer support base, a three-dimensional multi-directional adjustment platform, a bench vise fixing table, four sets of adjustment components, and an upper fixed plate. It fixes the grinding wheel and allows for multi-directional adjustment of the workpiece in three-dimensional space by changing the longitudinal coordinates of the four corner points of the three-dimensional multi-directional adjustment platform. It can adapt to various irregularly shaped workpieces, adjusting them to suitable angles for grinding. The workpiece is mechanically controlled to change its posture for grinding, eliminating the need for manual grinding by hand. It is convenient and simple to use, and does not require the creation of specific corresponding tooling for irregularly shaped parts, significantly saving costs, increasing production efficiency, improving production quality, and enhancing practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the ball joint structure of this utility model; Figure 3 This is a schematic diagram of the double-layer support structure of this utility model; Figure 4 This is a schematic diagram of the upper plate structure of this utility model; Figure 5 This is a cross-sectional schematic diagram of the three-dimensional multi-directional adjustment platform of this utility model.

[0014] In the diagram: 1. Double-layer support base; 2. Three-dimensional multi-directional adjustment platform; 3. Bench vise fixing table; 4. Adjustment component; 5. Upper fixed plate; 6. Upper plate of support base; 7. Lower plate of support base; 8. Ball joint; 9. Electrically controlled servo telescopic rod; 10. Joint cavity; 11. Multi-directional rotating ball core; 12. Upper push rod; 13. Lower push rod; 14. Circular connecting hole; 15. Lower offset constraint hole; 16. Fixing rod; 17. Upper offset constraint hole; 18. Central base plate; 19. Movable telescopic component; 20. High-elasticity rib bundle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a technical solution: A multi-angle adjustable grinding support device for machining includes: Double-layer support base 1, which is a rigid support structure, is fixedly installed on the ground; The three-dimensional multi-directional adjustment platform 2 is a square plate structure. The three-dimensional multi-directional adjustment platform 2 is set above the double-layer support base 1. The three-dimensional multi-directional adjustment platform 2 is movable and retractable. The bench vise fixing table 3 is fixedly set above the three-dimensional multi-directional adjustment platform 2. The bench vise fixing table 3 has multiple sets of T-slots. The bench vise fixing table 3 facilitates the fixing of workpieces. The workpieces can be fixed directly using the bench vise or vise of the machining lathe, and the workpieces can be adjusted in three dimensions along with the three-dimensional multi-directional adjustment platform 2.

[0017] Four sets of adjustment components 4 are respectively set at the four corners of the three-dimensional multi-directional adjustment platform 2. Although three points can define a plane, theoretically, three sets of adjustment components 4 can be used to realize the three-dimensional multi-directional adjustment of the three-dimensional multi-directional adjustment platform 2. However, the coordinate calculation of three sets of adjustment components 4 is complicated. Using four sets of adjustment components 4 conforms to the orthogonal coordinate system and can be directly calculated using trigonometric functions. With the tilt angle A of the target workpiece as known information, and the projection distance X of the adjustment component 4 from the coordinate point circle, the height Y to be adjusted is Y=XtanA.

[0018] The upper fixed plate 5 is positioned directly above the three-dimensional multi-directional adjustment platform 2 and is fixedly connected to the ceiling. Alternatively, the upper fixed plate 5 can be fixed to the ceiling using larger support legs, but this would significantly increase the floor space and potentially obstruct the mold. Fixing it to the ceiling results in a smaller floor space and less space obstruction.

[0019] Furthermore, the double-layer support base 1 includes an upper support plate 6, a lower support plate 7, and multiple sets of support feet. The upper support plate 6 and the lower support plate 7 are fixed to the ground by the multiple sets of support feet, and both the upper support plate 6 and the lower support plate 7 are parallel to the ground.

[0020] Furthermore, the three-dimensional multi-directional adjustment platform 2 includes a central base plate 18 and four sets of movable telescopic members 19. The central base plate 18 has four sets of corner grooves, and the four sets of movable telescopic members 19 are located at the four corners of the central base plate 18. High-elasticity ribs 20 are arranged adjacent to each of the four sets of movable telescopic members 19. The four sets of movable telescopic members 19 can extend and retract relative to the central base plate 18. As the tilt angle of the entire three-dimensional multi-directional adjustment platform 2 changes, the movable telescopic members 19 move within the corner grooves to adapt to changes in the tilt distance from the adjustment component 4 to the center. The high-elasticity ribs 20 provide tensile force to prevent the entire three-dimensional multi-directional adjustment platform 2 from disintegrating.

[0021] Furthermore, the adjustment component 4 includes a ball joint 8 and an electrically controlled servo telescopic rod 9. The ball joint 8 is fixedly mounted on the movable telescopic component 19, and the electrically controlled servo telescopic rod 9 is fixedly mounted on the lower plate 7 of the support base at the position corresponding to the ball joint 8, with the output direction of the electrically controlled servo telescopic rod 9 vertically upward. The electrically controlled servo telescopic rod 9 must be equipped with a device capable of precisely controlling the lifting stroke. The controller is not limited; any commonly used controllers in this technical field are applicable. The controller is typically provided by the supplier of the servo telescopic rod.

[0022] Furthermore, the ball joint 8 includes a joint cavity 10, a multi-directional rotating ball core 11, an upper push rod 12, and a lower push rod 13. The joint cavity 10 is fixedly connected to the movable telescopic member 19. A spherical cavity is formed inside the joint cavity 10, and the spherical cavity has two sets of opposing circular connecting holes 14 with the outside. A rotatable multi-directional rotating ball core 11 is provided inside the joint cavity 10. The upper push rod 12 passes through one set of circular connecting holes 14 and is fixedly connected to the multi-directional rotating ball core 11. The lower push rod 13 passes through the other set of circular connecting holes 14 and is fixedly connected to the multi-directional rotating ball core 11.

[0023] Furthermore, both the upper push rod 12 and the lower push rod 13 are perfectly circular rods, with their axes coaxial. The centerlines of the upper push rod 12 and the lower push rod 13 pass through the center of the multi-directional rotating ball core 11. The circular rods distribute the force evenly, better resisting deflection torque, and their round shape without sharp edges makes multi-directional rotation adjustment more stable.

[0024] Furthermore, the upper plate 6 of the support base has lower offset constraint holes 15 corresponding to the lower push rods 13. All four sets of lower push rods 13 pass through the lower offset constraint holes 15 and are fixedly connected to the output rods of the electrically controlled servo telescopic rods 9. The main functions of the upper plate 6 and the upper fixed plate 5 of the support base are to limit the direction of the upper push rods 12 and the lower push rods 13, and to resist the deflection torque (the deflection torque on the adjustment component 4 generated by the three-dimensional multi-directional adjustment platform 2 under the action of gravity after rotation).

[0025] Furthermore, multiple sets of fixing rods 16 are provided above the upper fixed plate 5. The upper fixed plate 5 is fixedly connected to the ceiling through the fixing rods 16. The upper fixed plate 5 is parallel to the upper plate 6 of the support base. Four sets of upper offset constraint holes 17 corresponding to the upper top rods 12 are opened on the upper fixed plate 5. All four sets of upper top rods 12 pass through the upper offset constraint holes 17.

[0026] Structural Description: Double-layer support base 1: A rigid support structure, fixed to the ground, consisting of an upper support plate 6, a lower support plate 7, and multiple sets of support feet, providing a stable foundation for the device; Three-dimensional multi-directional adjustment platform 2: a square plate structure, located above the double-layer support base 1, with four corners connected by four sets of adjustment components 4, which can realize three-dimensional spatial angle deflection; Bench vise fixing table 3: Fixed above the three-dimensional multi-directional adjustment platform 2, with multiple sets of T-slots for quickly fixing various lathe bench vises or vises to clamp workpieces; Adjustment component 4: There are four sets in total, located at the four corners of the three-dimensional multi-directional adjustment platform 2. They consist of ball joints 8 and electrically controlled servo telescopic rods 9, and are the key execution units for realizing multi-angle adjustment. Upper fixed plate 5: Located directly above the three-dimensional multi-directional adjustment platform 2, it is connected to the ceiling through the fixed rod 16, forming a force balance system with the double-layer support base 1; Upper support plate 6: A component of the double-layer support plate 1, which is fixed to the ground and parallel to the ground with the lower support plate 7 via support feet, and has a lower offset constraint hole 15. Lower support plate 7: A component of the double-layer support 1, used to fix the electrically controlled servo telescopic rod 9, parallel to the upper support plate 6 and fixed to the ground by support feet; Ball joint 8: fixed on the three-dimensional multi-directional adjustment platform 2, including joint cavity 10, multi-directional rotating ball core 11, upper push rod 12 and lower push rod 13, which can realize multi-directional rotation; Electrically controlled servo telescopic rod 9: Fixed to the ball joint 8 on the lower plate 7 of the support base, with the output direction vertically upward, it can precisely control the telescopic length to adjust the angle; Joint cavity 10: A component of the ball joint 8, fixedly connected to the three-dimensional multi-directional adjustment platform 2, containing a spherical cavity and two sets of opposing circular connecting holes 14; Multi-directional rotating ball core 11: It is rotatable in the spherical cavity of the joint cavity 10 and is fixedly connected to the upper push rod 12 and the lower push rod 13 respectively to realize multi-directional rotation; Top rod 12: a perfectly round rod that passes through the perfectly round connecting hole 14 of the joint cavity 10 and is fixed to the multi-directional rotating ball core 11. Its axis passes through the center of the multi-directional rotating ball core 11, and its top end passes through the upper offset constraint hole 17 of the upper fixed plate 5. Lower push rod 13: a circular rod, coaxial with the upper push rod 12, passes through another set of circular connecting holes 14 in the joint cavity 10 and is fixed to the multi-directional rotating ball core 11, passes through the lower offset constraint hole 15 in the upper plate 6 of the support base and is connected to the output rod of the electrically controlled servo telescopic rod 9. Circular connecting hole 14: Located on the joint cavity 10, there are two sets of opposite holes, which allow the upper push rod 12 and the lower push rod 13 to pass through and communicate with the spherical cavity inside the joint cavity 10. Lower offset constraint hole 15: It is opened on the upper plate 6 of the support base, corresponding to the lower push rod 13, so that the lower push rod 13 can pass through and form a guide and limit for it; Fixed rod 16: Located above the upper fixed plate 5, used to fix the upper fixed plate 5 to the ceiling, so that the upper fixed plate 5 forms a stable upper support point; Upper offset constraint hole 17: It is opened on the upper fixed plate 5, corresponding to the upper push rod 12, so that the upper push rod 12 can pass through and form a guide limit for it; Central base plate 18: A component of the three-dimensional multi-directional adjustment platform 2, used to support the vise fixing platform 3; Movable telescopic component 19: A component of the three-dimensional multi-directional adjustment platform 2, which can move relative to the central base plate 18 to adapt to changes in the tilt distance of the adjustment component 4 to the center; High-elasticity ribs 20: Composed of multiple sets of elastic wires, they provide tensile force and ensure that the entire three-dimensional multi-directional adjustment platform 2 will not fall apart.

[0027] Working principle: The device achieves multi-angle grinding adjustment of irregular workpieces through the coordinated control of four sets of adjustment components 4. Its working principle is based on the precise control and stable support mechanism of three-dimensional spatial angle.

[0028] During operation, the double-layer support base 1 serves as the rigid foundation of the entire system. Through the upper support plate 6, lower support plate 7, and support feet, a stable frame structure is formed, ensuring overall structural stability during adjustment. The three-dimensional multi-directional adjustment platform 2, as the core adjustment component, is connected to the double-layer support base 1 and the upper fixed plate 5 at its four corners via four sets of adjustment components 4, forming a coordinated constraint system.

[0029] The four sets of adjustment components 4 are the key execution units for realizing multi-angle adjustment. Each set of components consists of a ball joint 8 and an electrically controlled servo telescopic rod 9 forming a closed-loop adjustment link. When it is necessary to adjust the workpiece angle, the required extension amount of the four sets of electrically controlled servo telescopic rods 9 is calculated according to the target angle parameters. The lifting height of the corresponding electrically controlled servo telescopic rod 9 can be directly obtained through trigonometric function calculation. When the entire three-dimensional multi-directional adjustment platform 2 is tilted, the four sets of adjustment components 4 are constrained by the upper and lower push rods, and the projection distance is inconvenient. The tilt distance of the four sets of adjustment components 4 to the center changes. At this time, the movable telescopic component 19 plays a role. The movable telescopic component 19 can move relative to the central base plate 18 to adapt to the change in the tilt distance of the adjustment components 4 to the center.

[0030] After receiving the command, the electrically controlled servo telescopic rod 9 precisely changes its telescopic length, transmitting the force to the ball joint 8 through the lower push rod 13. The multi-directional rotating ball core 11 inside the ball joint 8 can rotate freely within the spherical cavity of the joint cavity 10. Combined with the coaxial design of the upper push rod 12 and the lower push rod 13, the three-dimensional multi-directional adjustment platform 2 can achieve angular deflection around any axis. At this time, the lower offset constraint hole 15 of the upper plate 6 of the support base and the upper offset constraint hole 17 of the upper fixed plate 5 form guide limits for the lower push rod 13 and the upper push rod 12, respectively. This allows the rod to sway within a certain range as the platform adjusts, while also offsetting the lateral torque generated when the platform deflects through the constraint of the hole wall, preventing the adjustment component 4 from deforming due to force imbalance.

[0031] The bench vise fixing table 3 serves as a workpiece bearing component. Its T-slots allow for the quick and easy securing of various lathe bench vises or vises, ensuring stable clamping of irregularly shaped workpieces of different specifications. When the three-dimensional multi-directional adjustment platform 2 completes its angle adjustment under the drive of the four sets of adjustment components 4, the bench vise fixing table 3 moves synchronously with the platform, causing the workpiece to undergo multi-angle transformations in three-dimensional space until the surface to be ground is adjusted to the optimal working angle that matches the grinding wheel.

[0032] Throughout the adjustment process, the upper fixed plate 5 is connected to the ceiling via the fixing rod 16, forming a stable upper support point. This, in conjunction with the lower support of the double-layer support base 1, constitutes a "clamping" force balance system. This design not only reduces the floor space required and avoids spatial interference with the grinding tool operation, but also ensures the stability and accuracy of the adjustment process through structural mechanics optimization. This allows irregularly shaped workpieces to flexibly change angles during grinding operations while maintaining reliable positioning accuracy, effectively improving the efficiency and quality of grinding operations.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle adjustable grinding support device for machining, characterized in that, include: Double-layer support base (1), the double-layer support base (1) is a rigid support structure, and the double-layer support base (1) is fixedly installed on the ground; A three-dimensional multi-directional adjustment platform (2) is a square plate structure. The three-dimensional multi-directional adjustment platform (2) is located above the double-layer support base (1). The three-dimensional multi-directional adjustment platform (2) is movable and retractable. A bench vise fixing table (3) is fixedly installed above a three-dimensional multi-directional adjustment platform (2). Multiple T-slots are provided on the bench vise fixing table (3). Four sets of adjustment components (4) are respectively set at the four corners of the three-dimensional multi-directional adjustment platform (2); The upper fixed plate (5) is located directly above the three-dimensional multi-directional adjustment platform (2) and is fixedly connected to the ceiling.

2. The multi-angle adjustable grinding support device for machining according to claim 1, characterized in that, The double-layer support base (1) includes an upper support plate (6), a lower support plate (7), and multiple sets of support feet. The upper support plate (6) and the lower support plate (7) are fixed to the ground by multiple sets of support feet, and both the upper support plate (6) and the lower support plate (7) are parallel to the ground.

3. The multi-angle adjustable grinding support device for machining according to claim 2, characterized in that, The three-dimensional multi-directional adjustment platform (2) includes a central base plate (18) and four sets of movable telescopic components (19). The central base plate (18) has four sets of corner grooves. The four sets of movable telescopic components (19) are located at the four corners of the central base plate (18). High elastic rib bundles (20) are provided at the adjacent positions of the four sets of movable telescopic components (19).

4. The multi-angle adjustable grinding support device for machining according to claim 3, characterized in that, The adjustment component (4) includes a ball joint (8) and an electrically controlled servo telescopic rod (9). The ball joint (8) is fixedly mounted on the movable telescopic component (19). The electrically controlled servo telescopic rod (9) is fixedly mounted on the lower plate (7) of the support base at the position corresponding to the ball joint (8). The output direction of the electrically controlled servo telescopic rod (9) is vertically upward.

5. The multi-angle adjustable grinding support device for machining according to claim 4, characterized in that, The ball joint (8) includes a joint cavity (10), a multi-directional rotating ball core (11), an upper push rod (12), and a lower push rod (13). The joint cavity (10) is fixedly connected to the movable telescopic member (19). A spherical cavity is provided inside the joint cavity (10), and the spherical cavity has two sets of opposing circular connecting holes (14) with the outside. A rotatable multi-directional rotating ball core (11) is provided inside the joint cavity (10). The upper push rod (12) passes through one set of circular connecting holes (14) and is fixedly connected to the multi-directional rotating ball core (11). The lower push rod (13) passes through another set of circular connecting holes (14) and is fixedly connected to the multi-directional rotating ball core (11).

6. The multi-angle adjustable grinding support device for machining according to claim 5, characterized in that, The upper push rod (12) and the lower push rod (13) are both circular rods. The upper push rod (12) and the lower push rod (13) are coaxial, and the axis of the upper push rod (12) and the lower push rod (13) passes through the center of the multi-directional rotating ball core (11).

7. The multi-angle adjustable grinding support device for machining according to claim 5, characterized in that, The upper plate (6) of the support base is provided with a lower offset constraint hole (15) corresponding to the lower push rod (13). All four sets of lower push rods (13) pass through the lower offset constraint hole (15) and are fixedly connected to the output rod of the electric servo telescopic rod (9).

8. The multi-angle adjustable grinding support device for machining according to claim 5, characterized in that, Multiple sets of fixing rods (16) are provided above the upper fixed plate (5). The upper fixed plate (5) is fixedly connected to the ceiling through the fixing rods (16). The upper fixed plate (5) is parallel to the upper plate (6) of the support base. Four sets of upper offset constraint holes (17) corresponding to the upper top rods (12) are opened on the upper fixed plate (5). All four sets of upper top rods (12) pass through the upper offset constraint holes (17).

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