A precision five-axis grinding machine

Abstract

The present invention provides a precision five-axis grinder, which can achieve precise grinding of complex shapes through the flexible movement of the X, Y, and Z axes combined with the clamping assembly to clamp and rotate the workpiece, thereby improving the processing accuracy and processing quality of the workpiece. Since the drive assembly plays a driving role, the reciprocating motion of the processing spindle is smoother and more robust, and the control of the processing depth and motion trajectory is more refined, thereby being able to meet different processing needs. By rationally arranging the various components, the overall stability is improved, the vibration and instability that may occur during the processing are reduced, and the service life of the equipment is helped to extend. Since the clamping assembly has both clamping and rotation functions, it can be used for different types of grinding and processing processes, increasing the versatility of the equipment. Therefore, the present invention solves the technical problem of insufficient workpiece grinding accuracy of five-axis grinders in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece grinding, in particular to a precision five-axis grinding machine. Background Art

[0002] With the development of precision manufacturing, the requirements for machine tools to achieve higher accuracy, stability, and versatility are becoming increasingly stringent. Five-axis grinding machines, in particular, are gaining widespread attention and application in fields such as aerospace, automotive manufacturing, and precision instruments, due to their significant advantages in machining complex surfaces, improving machining efficiency, and enhancing machining quality.

[0003] In the prior art, in traditional five-axis grinders, the movement of the spindle usually relies on complex mechanical transmission structures and control systems, which not only increases the complexity and cost of the equipment, but also easily leads to unstable movement, thereby affecting the workpiece grinding accuracy of the five-axis grinder. Summary of the Invention

[0004] The purpose of the present invention is to provide a precision five-axis grinding machine, which solves the technical problem of insufficient workpiece grinding accuracy of five-axis grinding machines in the prior art.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A precision five-axis grinding machine comprises a first moving assembly, a second moving assembly, and a third moving assembly that are perpendicularly distributed to each other, wherein the first moving assembly is connected to the second moving assembly, and the first moving assembly is provided with a clamping assembly for clamping and rotating a workpiece;

[0007] The third moving assembly is mounted with a driving assembly, the driving assembly comprising a driving base connected to the third moving assembly, a machining spindle being slidably connected within the driving base, a driving motor being mounted at one end of the driving base, an eccentric being mounted on the output shaft of the driving motor, and a connecting rod being hingedly connected to the eccentric to drive the machining spindle to reciprocate;

[0008] A grinding wheel for grinding the workpiece is installed on the machining spindle, the second moving component is used to drive the first moving component to move along the Y-axis direction, the first moving component is used to drive the clamping component to move along the X-axis direction, and the third moving component is used to drive the driving component to move along the Z-axis direction.

[0009] Optionally, the eccentric member includes a first eccentric block fixedly connected to the output shaft of the drive motor, the first eccentric block is slidably connected to a second eccentric block, and one end of the connecting rod away from the machining spindle is hinged to the second eccentric block;

[0010] The first eccentric block is threadedly connected with a first adjusting rod and a second adjusting rod which are arranged opposite to each other. The first adjusting rod and the second adjusting rod are both used to adjust the installation position of the second eccentric block on the first eccentric block.

[0011] Optionally, the second eccentric block is provided with a first adjustment slot and a second adjustment slot at intervals, the first adjustment rod is embedded in the first adjustment slot and abuts against the inner wall of the first adjustment slot, and the second adjustment rod is embedded in the second adjustment slot and abuts against the inner wall of the second adjustment slot;

[0012] The first eccentric block is provided with a first inclined surface, and the second eccentric block is provided with a second inclined surface corresponding to the first inclined surface.

[0013] Optionally, a guide rail and a sealing box for covering the guide rail are installed in the driving base, the guide rail is slidably connected to a slider, the slider is fixedly connected to an adapter plate, and the machining spindle is sleeved with a movable plate fixedly connected to the adapter plate;

[0014] One end of the connecting rod away from the eccentric piece is hinged to the movable plate, and both ends of the sealing box are equipped with joints for achieving liquid inlet and outlet.

[0015] Optionally, a reading head is installed on one side of the adapter plate, and a grating scale corresponding to the reading head is installed on the side wall of the sealing box;

[0016] A first sealing ring and a second sealing ring are installed in the sealing box. The first sealing ring abuts against the inner wall of the driving base, and the second sealing ring abuts against the inner wall of the adapter plate.

[0017] Optionally, the projected area of the adapter plate is larger than the projected area of the sealing box, a limit platform is fixedly installed in the driving base, a limit groove is provided through the limit platform, and a limit plate that slides with the limit groove is fixedly installed at one end of the movable plate away from the connecting rod.

[0018] Optionally, a first cover plate and a second cover plate are mounted on the driving base, the first cover plate is provided with a first opening for accommodating the reciprocating motion of the machining spindle, and the driving base is mounted with a detection assembly located in the second cover plate;

[0019] A second opening for accommodating the detection component for detection activities is provided at the bottom of the second cover plate. A sealed motor is installed on one side of the second cover plate. A sealing plate for sealing the second opening is installed on the output shaft of the sealed motor.

[0020] Optionally, the number of the second openings is set to two, the detection assembly includes a detection base fixedly connected to the driving base, the detection base is provided with a telescopic member, a detection camera and a detection probe, and the telescopic member is used to drive the detection probe to perform telescopic movement;

[0021] The number of the second openings is set to two, the detection camera corresponds to one of the second openings, and the detection probe corresponds to the other second opening.

[0022] Optionally, the clamping assembly includes a clamping platform, on which a rotary cylinder and a first ejector are relatively distributed, the rotary cylinder is slidably connected to the clamping platform, a clamping cylinder is installed on both sides of the clamping platform, and a connecting rod for driving the rotary cylinder to perform telescopic movement is fixedly connected to the telescopic rod of the clamping cylinder;

[0023] The rotary cylinder is equipped with a second ejector pin corresponding to the first ejector pin. The first ejector pin and the second ejector pin are both used to clamp the workpiece. The rotary cylinder is used to drive the second ejector pin to rotate so that the second ejector pin drives the workpiece to rotate.

[0024] Optionally, a first marble seat is installed at the bottom of the second movable assembly, a steel frame base is fixedly installed at the bottom of the first marble seat, a second marble seat is vertically fixedly installed at one end of the first marble seat, and the third movable assembly is installed on the second marble seat.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention provides a precision five-axis grinder, which can achieve precise grinding of complex shapes through the flexible movement of the X, Y, and Z axes combined with the clamping assembly to clamp and rotate the workpiece, thereby improving the processing accuracy and processing quality of the workpiece. Since the drive assembly plays a driving role, the reciprocating motion of the processing spindle is smoother and more robust, and the control of the processing depth and motion trajectory is more precise, thereby being able to meet different processing needs. By rationally arranging the various components, the overall stability is improved, the vibration and instability that may occur during the processing are reduced, and the service life of the equipment is helped to extend. Since the clamping assembly has both clamping and rotation functions, it can be used for different types of grinding and processing processes, increasing the versatility of the equipment. The grinder is suitable for processing workpieces of different specifications and materials, which enhances the versatility of the equipment. Therefore, the present invention solves the technical problem of insufficient workpiece grinding accuracy of five-axis grinders in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of a precision five-axis grinding machine provided by an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of the three-dimensional structure of a drive assembly in a precision five-axis grinder provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the exploded structure of a drive assembly in a precision five-axis grinder provided by an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the internal structure of a drive assembly in a precision five-axis grinder provided by an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the exploded structure of an eccentric member in a precision five-axis grinder provided by an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of the three-dimensional structure of a clamping assembly in a precision five-axis grinding machine provided by an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of the partial structure of a drive assembly in a precision five-axis grinder provided by an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of the partial cross-sectional structure of a drive assembly in a precision five-axis grinder provided by an embodiment of the present invention.

[0037] Illustration:

[0038] 10. First moving assembly; 20. Second moving assembly; 30. Third moving assembly;

[0039] 40. Drive assembly; 41. Drive base; 42. Drive motor; 43. Eccentric piece; 431. First eccentric block; 4311. First inclined surface; 432. Second eccentric block; 4321. First adjustment slot; 4322. Second adjustment slot; 4323. Second inclined surface; 44. Connecting rod; 45. First adjustment rod; 46. Second adjustment rod; 47. Guide rail; 48. Connector; 49. Sealing box; 410. Slider; 411. Adapter plate; 412. Reading head; 413. Grating scale; 414. First sealing ring; 415. Second sealing ring; 416. Limiting platform; 4161. Limiting slot; 417. Limiting plate; 418. First cover plate; 4181. First opening; 419. Second cover plate; 4191. Second opening;

[0040] 51. Machining spindle; 511. Moving plate; 52. Grinding wheel;

[0041] 60. Clamping assembly; 61. Clamping platform; 62. Rotating cylinder; 63. First ejector pin; 64. Clamping cylinder; 65. Connecting rod; 66. Second ejector pin; 67. Light source;

[0042] 70. Sealed motor; 80. Sealing plate;

[0043] 90. Detection assembly; 91. Detection base; 92. Telescopic member; 93. Detection camera; 94. Detection probe;

[0044] 100, first marble base; 200, steel frame base; 300, second marble base; 400, workpiece. DETAILED DESCRIPTION

[0045] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0047] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0048] The embodiment of the present invention provides a precision five-axis grinding machine, such as Figures 1 to 8 As shown, it includes a first moving assembly 10, a second moving assembly 20, and a third moving assembly 30 that are vertically distributed to each other. The first moving assembly 10 is connected to the second moving assembly 20. The first moving assembly 10 is provided with a clamping assembly 60 for clamping and rotating the workpiece 400.

[0049] A driving assembly 40 is mounted on the third moving assembly 30. The driving assembly 40 includes a driving base 41 connected to the third moving assembly 30. A machining spindle 51 is slidably connected to the driving base 41. A driving motor 42 is mounted on one end of the driving base 41. An eccentric member 43 is mounted on the output shaft of the driving motor 42. The eccentric member 43 is hingedly connected to a connecting rod 44 for driving the machining spindle 51 to reciprocate.

[0050] A grinding wheel 52 is mounted on the machining spindle 51 for grinding the workpiece 400. The second movable assembly 20 is used to drive the first movable assembly 10 to move along the Y-axis. The first movable assembly 10 is used to drive the clamping assembly 60 to move along the X-axis. The third movable assembly 30 is used to drive the driving assembly 40 to move along the Z-axis. In this embodiment, the first movable assembly 10, the second movable assembly 20, and the third movable assembly 30 are all driven by motors and are linear drive structures well known to those skilled in the art, and will not be described in detail here.

[0051] It should be noted that the present invention provides a precision five-axis grinder, which can achieve precise grinding of complex shapes through the flexible movement of the X, Y, and Z axes, combined with the clamping assembly 60 to clamp and rotate the workpiece 400, thereby improving the processing accuracy and processing quality of the workpiece 400. Since the drive assembly 40 plays a driving role, the reciprocating motion of the processing spindle 51 is smoother and more robust, and the control of the processing depth and motion trajectory is more refined, thereby being able to meet different processing requirements. By rationally arranging the various components, the overall stability is improved, the vibration and instability that may occur during the processing are reduced, and the service life of the equipment is helped to extend. Since the clamping assembly 60 has both clamping and rotation functions, it can be used for different types of grinding and processing processes, increasing the versatility of the equipment. The grinder is suitable for processing workpieces 400 of different specifications and materials, which enhances the versatility of the equipment. Therefore, the present invention solves the technical problem of insufficient grinding accuracy of the workpiece 400 of the five-axis grinder in the prior art.

[0052] like Figures 3 to 5As shown, the eccentric member 43 includes a first eccentric block 431 fixedly connected to the output shaft of the drive motor 42, the first eccentric block 431 is slidably connected to the second eccentric block 432, and the end of the connecting rod 44 away from the machining spindle 51 is hinged to the second eccentric block 432; in this embodiment, the second eccentric block 432 is arranged at an angle;

[0053] A first adjusting rod 45 and a second adjusting rod 46 which are opposite to each other are threadedly connected to the first eccentric block 431 . The first adjusting rod 45 and the second adjusting rod 46 are both used to adjust the installation position of the second eccentric block 432 on the first eccentric block 431 .

[0054] Specifically, when the driving motor 42 moves, it drives the first eccentric block 431 and the second eccentric block 432 to rotate, and through the motion transmission of the connecting rod 44, drives the processing spindle 51 to reciprocating linear motion, so that the grinding wheel 52 can form the required processing route on the surface of the workpiece 400, thereby improving the processing accuracy of the workpiece 400.

[0055] It should be noted that when adjusting the position of the second eccentric mass 432, by loosening the first adjusting rod 45 and tightening the second adjusting rod 46, the hinge point between the connecting rod 44 and the second eccentric mass 432 is moved away from the rotation center of the first eccentric mass 431, thereby increasing the movement distance of the driving spindle; conversely, by tightening the first adjusting rod 45 and loosening the second adjusting rod 46, the hinge point between the connecting rod 44 and the second eccentric mass 432 is close to the rotation center of the first eccentric mass 431, thereby reducing the movement distance of the driving spindle, thereby realizing the adjustable reciprocating distance of the driving spindle.

[0056] like Figure 5 As shown, the second eccentric block 432 is separated into a first adjustment groove 4321 and a second adjustment groove 4322. The first adjustment rod 45 is embedded in the first adjustment groove 4321 and abuts against the inner wall of the first adjustment groove 4321. The second adjustment rod 46 is embedded in the second adjustment groove 4322 and abuts against the inner wall of the second adjustment groove 4322.

[0057] The first eccentric block 431 is provided with a first inclined surface 4311 , and the second eccentric block 432 is provided with a second inclined surface 4323 corresponding to the first inclined surface 4311 .

[0058] It should be noted that the spaced-apart first and second adjustment slots 4321, 4322 facilitate the accommodation of the first and second adjustment rods 45, 46, and adjust the specific position of the second eccentric mass 432 on the first eccentric mass 431, thereby changing the eccentricity and operating trajectory of the second eccentric mass 432 and enhancing the adaptability of the equipment under different processing conditions. The provision of the first and second inclined surfaces 4311, 4323 increases the contact between the first and second eccentric masses 431, 432, and reduces looseness during movement, thereby improving the stability of the mechanical system and reducing the failure rate.

[0059] like Figures 2 to 5 As shown, a guide rail 47 and a sealing box 49 for covering the guide rail 47 are installed in the driving base 41. The guide rail 47 is slidably connected to a slider 410, and the slider 410 is fixedly connected to an adapter plate 411. The processing spindle 51 is sleeved with a movable plate 511 fixedly connected to the adapter plate 411;

[0060] The end of the connecting rod 44, away from the eccentric member 43, is hingedly connected to the movable plate 511. Joints 48 for fluid inlet and outlet are installed at both ends of the sealing box 49. In practice, the two joints 48 allow oil or water to be injected into the sealing box 49. When the drive motor 42 is activated, it rotates the eccentric member 43, causing the connecting rod 44 to move the movable plate 511, thereby achieving reciprocating linear motion of the machining spindle 51. Simultaneously, the movable plate 511 moves the adapter plate 411. Because the slider 410 is fixedly connected to the adapter plate 411, the adapter plate 411 drives the slider 410 in reciprocating linear motion on the guide rail 47.

[0061] It should be noted that the guide rail 47 provides a precise motion path for the slider 410. Combined with the use of the movable plate 511 and the adapter plate 411, this enhances the precision and stability of the drive assembly 40, contributing to high-quality machining results. The provision of the connector 48 allows for rapid adjustment of lubrication and cooling conditions based on machining needs, enhancing the adaptability of the equipment. The lubricating fluid (such as oil or water) within the sealed box 49 effectively reduces frictional heat between the slider 410 and the guide rail 47, thereby reducing equipment damage due to overheating and maintaining efficient operation over time.

[0062] like Figure 7 and Figure 8 As shown, a reading head 412 is installed on one side of the adapter plate 411, and a grating scale 413 corresponding to the reading head 412 is installed on the side wall of the sealing box 49;

[0063] A first sealing ring 414 and a second sealing ring 415 are installed in the sealing box 49. The first sealing ring 414 abuts against the inner wall of the driving base 41, and the second sealing ring 415 abuts against the inner wall of the adapter plate 411. In this embodiment, the reading head 412 is a well-known structure to those skilled in the art and will not be described in detail here.

[0064] It should be noted that the movement position of the adapter plate 411 is monitored in real time through the use of the reading head 412 and the grating scale 413. When the adapter plate 411 moves, the reading head 412 can measure its precise position by reading the code on the grating scale 413, providing feedback information for the precision machining of the workpiece 400, enabling high-precision control and improving the machining accuracy of the five-axis grinder. The sealing effect of the first sealing ring 414 and the second sealing ring 415 reduces liquid leakage and dust intrusion, thereby reducing the risk of wear and failure and enhancing the stability and reliability of the equipment.

[0065] like Figure 7 and Figure 8 As shown, the projection area of the adapter plate 411 is larger than the projection area of the sealing box 49, and a limiting platform 416 is fixedly installed in the driving base 41. The limiting platform 416 is provided with a limiting groove 4161, and the end of the movable plate 511 away from the connecting rod 44 is fixedly installed with a limiting plate 417 that slides with the limiting groove 4161.

[0066] It should be noted that because the projected area of adapter plate 411 is larger than that of sealing box 49, adapter plate 411 effectively seals sealing box 49 during its reciprocating linear motion, preventing the escape of liquid within sealing box 49. The limiting groove 4161 and limiting plate 417 work together to ensure that movable plate 511 does not exceed the restricted range. If movable plate 511 moves excessively due to a malfunction or other reason, limiting plate 417 will restrict its trajectory, preventing damage to the equipment.

[0067] like Figures 2 to 5 As shown, a first cover plate 418 and a second cover plate 419 are mounted on the driving base 41. The first cover plate 418 is provided with a first opening 4181 for accommodating the reciprocating motion of the machining spindle 51. The driving base 41 is mounted with a detection assembly 90 located in the second cover plate 419.

[0068] A second opening 4191 is provided at the bottom of the second cover plate 419 for accommodating the detection component 90 for detection activities. A sealing motor 70 is installed on one side of the second cover plate 419 . A sealing plate 80 for sealing the second opening 4191 is installed on the output shaft of the sealing motor 70 .

[0069] Specifically, when the detection component 90 is working, the clamping component 60 avoids the position, and the sealing motor 70 drives the sealing plate 80 to rotate, so that the sealing plate 80 is away from the second opening 4191; then, the detection component 90 can realize the detection function.

[0070] It should be noted that when testing is required, the sealing motor 70 is started, driving the sealing plate 80 to rotate. Through the rotation operation, the sealing plate 80 will move away from the second opening 4191, ensuring that the detection assembly 90 can perform the detection operation through the second opening 4191. When the detection assembly 90 is working, the clamping assembly 60 avoids the position to ensure that the clamping assembly 60 does not interfere with the detection operation of the detection assembly 90. Integrating the detection assembly 90 into the drive base 41 reduces the external space requirement, improves the compactness of the five-axis grinder, and also improves the maintainability of the five-axis grinder.

[0071] like Figures 2 to 5 As shown, the number of the second openings 4191 is set to two, and the detection assembly 90 includes a detection base 91 fixedly connected to the driving base 41. The detection base 91 is provided with a telescopic member 92, a detection camera 93 and a detection probe 94. The telescopic member 92 is used to drive the detection probe 94 to perform telescopic movement;

[0072] There are two second openings 4191, with the detection camera 93 corresponding to one of the second openings 4191 and the detection probe 94 corresponding to the other second opening 4191. In this embodiment, the telescopic member 92 is a telescopic cylinder or a telescopic motor, which can drive the detection camera 93 and the detection probe 94 to perform synchronous telescopic motion.

[0073] It should be noted that when the system needs to perform visual inspection, the detection camera 93 observes through the first second opening 4191 and provides image feedback of the state of the workpiece 400. When physical contact detection is required, the detection probe 94 is driven to perform telescopic movement by the telescopic member 92, so that the detection probe 94 extends into the other second opening 4191, and can perform measurements at different contact points. By setting up two second openings 4191, different types of detection can be performed at the same time, avoiding repeated operations in time and space, thereby improving overall work efficiency. Through the use of the detection probe 94 and the detection camera 93, high-precision detection and monitoring can be achieved, and multi-level feedback information can be provided to ensure the accuracy and reliability of the processing process.

[0074] like Figure 1 and Figure 6As shown, the clamping assembly 60 includes a clamping platform 61, on which a rotary cylinder 62 and a first ejector pin 63 are relatively distributed. The rotary cylinder 62 is slidably connected to the clamping platform 61. A clamping cylinder 64 is installed on both sides of the clamping platform 61. The telescopic rod of the clamping cylinder 64 is fixedly connected to a connecting rod 65 for driving the rotary cylinder 62 to perform telescopic movement. In this embodiment, the clamping cylinder 64 drives the rotary cylinder 62 to move along the C-axis direction.

[0075] A second ejector pin 66 is mounted on the rotary cylinder 62, corresponding to the first ejector pin 63. Both the first ejector pin 63 and the second ejector pin 66 are used to clamp the workpiece 400. The rotary cylinder 62 is used to drive the second ejector pin 66 to rotate, thereby causing the second ejector pin 66 to rotate the workpiece 400. In this embodiment, the first ejector pin 63 is fixed to the clamping platform 61, which is mounted with a light source 67 for illuminating the detection assembly 90. The first ejector pin 63 and the second ejector pin 66 are located on the same straight line, and the rotary cylinder 62 is used to drive the second ejector pin 66 to rotate along the A-axis.

[0076] It should be noted that the clamping cylinder 64 drives the rotating cylinder 62 to move along the C-axis, bringing the second ejector pin 66 closer to the first ejector pin 63. The first ejector pin 63 and the second ejector pin 66 then clamp the workpiece 400. The rotating cylinder 62 drives the second ejector pin 66 to rotate along the A-axis, causing the second ejector pin 66 to rotate the workpiece 400. Combined with the reciprocating linear motion of the machining spindle 51, the grinding wheel 52 grinds multiple surfaces of the workpiece 400. The use of the light source 67 ensures that the detection assembly 90 can operate under good lighting conditions, thereby improving the quality and efficiency of workpiece 400 inspection.

[0077] like Figure 1 As shown, a first marble seat 100 is installed at the bottom of the second movable assembly 20, a steel frame base 200 is fixedly installed at the bottom of the first marble seat 100, a second marble seat 300 is vertically fixedly installed at one end of the first marble seat 100, and the third movable assembly 30 is installed on the second marble seat 300.

[0078] It should be noted that both the first marble base 100 and the second marble base 300 are made of marble. Due to its excellent rigidity and stability, it can effectively suppress vibration and transmission, ensuring a stable working environment during high-precision grinding, reducing machining errors caused by vibration, and improving the machining performance and reliability of the entire grinder. The steel frame base 200 at the bottom provides strong support for the entire five-axis grinder. The first marble base 100 and the second marble base 300 fixed above it form a layered structure that can effectively disperse the load caused by the movement of the first moving assembly 10, the second moving assembly 20, and the third moving assembly 30.

[0079] Working principle: The present invention provides a precision five-axis grinder, which can achieve precise grinding of complex shapes through the flexible movement of the X, Y, and Z axes, combined with the clamping assembly 60 to clamp and rotate the workpiece 400, thereby improving the processing accuracy and processing quality of the workpiece 400. Since the drive assembly 40 plays a driving role, the reciprocating motion of the processing spindle 51 is smoother and more robust, and the control of the processing depth and motion trajectory is more precise, thereby being able to meet different processing needs. By rationally arranging the various components, the overall stability is improved, the vibration and instability that may occur during the processing are reduced, and the service life of the equipment is helped to extend. Since the clamping assembly 60 has both clamping and rotation functions, it can be used for different types of grinding and processing processes, increasing the versatility of the equipment. The grinder is suitable for processing workpieces 400 of different specifications and materials, which enhances the versatility of the equipment. Therefore, the present invention solves the technical problem of insufficient grinding accuracy of the workpiece 400 of the five-axis grinder in the prior art.

[0080] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A precision five-axis grinding machine, characterized in that: The invention comprises a first moving assembly (10), a second moving assembly (20), and a third moving assembly (30) which are vertically distributed to each other, wherein the first moving assembly (10) is connected to the second moving assembly (20), and the first moving assembly (10) is provided with a clamping assembly (60) for clamping and rotating a workpiece (400); A driving assembly (40) is mounted on the third moving assembly (30), the driving assembly (40) comprising a driving base (41) connected to the third moving assembly (30), a processing spindle (51) being slidably connected in the driving base (41), a driving motor (42) being mounted on one end of the driving base (41), an eccentric member (43) being mounted on the output shaft of the driving motor (42), and a connecting rod (44) being hingedly connected to the eccentric member (43) for driving the processing spindle (51) to perform reciprocating motion; A grinding wheel (52) for grinding a workpiece (400) is mounted on the machining spindle (51), the second moving assembly (20) is used to drive the first moving assembly (10) to move along the Y-axis direction, the first moving assembly (10) is used to drive the clamping assembly (60) to move along the X-axis direction, and the third moving assembly (30) is used to drive the driving assembly (40) to move along the Z-axis direction; A guide rail (47) and a sealing box (49) for covering the guide rail (47) are installed in the driving base (41); the guide rail (47) is slidably connected to a slider (410); the slider (410) is fixedly connected to an adapter plate (411); and the machining spindle (51) is sleeved with a movable plate (511) fixedly connected to the adapter plate (411); One end of the connecting rod (44) away from the eccentric member (43) is hinged to the movable plate (511), and both ends of the sealing box (49) are equipped with joints (48) for achieving liquid inlet and outlet; A reading head (412) is installed on one side of the adapter plate (411), and a grating ruler (413) corresponding to the reading head (412) is installed on the side wall of the sealing box (49); A first sealing ring (414) and a second sealing ring (415) are installed in the sealing box (49), the first sealing ring (414) abuts against the inner wall of the driving base (41), and the second sealing ring (415) abuts against the inner wall of the adapter plate (411).

2. The precision five-axis grinding machine according to claim 1, characterized in that: The eccentric member (43) includes a first eccentric block (431) fixedly connected to the output shaft of the drive motor (42), the first eccentric block (431) is slidably connected to a second eccentric block (432), and an end of the connecting rod (44) away from the machining spindle (51) is hinged to the second eccentric block (432); A first adjusting rod (45) and a second adjusting rod (46) are threadedly connected to the first eccentric block (431), and the first adjusting rod (45) and the second adjusting rod (46) are both used to adjust the installation position of the second eccentric block (432) on the first eccentric block (431).

3. The precision five-axis grinding machine according to claim 2, characterized in that: The second eccentric block (432) is provided with a first adjustment groove (4321) and a second adjustment groove (4322) at intervals, the first adjustment rod (45) is embedded in the first adjustment groove (4321) and abuts against the inner wall of the first adjustment groove (4321), and the second adjustment rod (46) is embedded in the second adjustment groove (4322) and abuts against the inner wall of the second adjustment groove (4322); The first eccentric block (431) is provided with a first inclined surface (4311), and the second eccentric block (432) is provided with a second inclined surface (4323) corresponding to the first inclined surface (4311).

4. The precision five-axis grinding machine according to claim 1, characterized in that: The projected area of the adapter plate (411) is larger than the projected area of the sealing box (49); a limiting platform (416) is fixedly installed in the driving base (41); a limiting groove (4161) is provided through the limiting platform (416); and a limiting plate (417) that is slidably engaged with the limiting groove (4161) is fixedly installed at one end of the movable plate (511) away from the connecting rod (44).

5. The precision five-axis grinding machine according to claim 1 or 2, characterized in that: A first cover plate (418) and a second cover plate (419) are mounted on the driving base (41); the first cover plate (418) is provided with a first opening (4181) for accommodating the reciprocating motion of the machining spindle (51); and a detection assembly (90) located within the second cover plate (419) is mounted on the driving base (41); A second opening (4191) for accommodating the detection component (90) for performing detection activities is provided at the bottom of the second cover plate (419), a sealed motor (70) is installed on one side of the second cover plate (419), and a sealing plate (80) for sealing the second opening (4191) is installed on the output shaft of the sealed motor (70).

6. The precision five-axis grinding machine according to claim 5, characterized in that: The number of the second openings (4191) is set to two, the detection assembly (90) includes a detection base (91) fixedly connected to the driving base (41), the detection base (91) is provided with a telescopic member (92), a detection camera (93) and a detection probe (94), and the telescopic member (92) is used to drive the detection probe (94) to perform telescopic movement; The number of the second openings (4191) is set to two, the detection camera (93) corresponds to one of the second openings (4191), and the detection probe (94) corresponds to the other second opening (4191).

7. The precision five-axis grinding machine according to claim 1 or 2, characterized in that: The clamping assembly (60) includes a clamping platform (61), a rotating cylinder (62) and a first ejector pin (63) are relatively distributed on the clamping platform (61), the rotating cylinder (62) is slidably connected to the clamping platform (61), and clamping cylinders (64) are installed on both sides of the clamping platform (61), and a connecting rod (65) for driving the rotating cylinder (62) to perform telescopic movement is fixedly connected to the telescopic rod of the clamping cylinder (64); A second thimble (66) corresponding to the first thimble (63) is mounted on the rotary cylinder (62). The first thimble (63) and the second thimble (66) are both used to clamp the workpiece (400). The rotary cylinder (62) is used to drive the second thimble (66) to perform rotational motion, so that the second thimble (66) drives the workpiece (400) to perform rotational motion.

8. The precision five-axis grinding machine according to claim 1, characterized in that: A first marble seat (100) is installed at the bottom of the second movable assembly (20), a steel frame base (200) is fixedly installed at the bottom of the first marble seat (100), a second marble seat (300) is vertically fixedly installed at one end of the first marble seat (100), and the third movable assembly (30) is installed on the second marble seat (300).

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