A flexible grinding machine and a rectangular path control method

Abstract

The present invention discloses a flexible grinding machine and a rectangular path control method, including a grinding equipment body. A clamping mechanism for clamping a workpiece is arranged inside the grinding equipment body. A swinging telescopic rod assembly that can rotate around the clamping mechanism is arranged inside the grinding equipment body. A flexible grinding wheel assembly is arranged at the outer end of the swinging telescopic rod assembly, ensuring that the flexible grinding wheel can closely fit the outer contour of a rectangular workpiece, achieving high-precision grinding, effectively reducing grinding errors, and improving product quality. With the flexible adjustment of the width and length control mechanisms, the grinding machine can cope with the unevenness of the workpiece surface, the change of the corner arc, etc. It can quickly adjust the length control mechanism and the width control mechanism according to the size of the outer contour of the rectangular workpiece, so that the flexible grinding wheel assembly always closely adheres to the movement when moving around the outer contour of the workpiece, achieving precise grinding. At the same time, it can adapt to more rectangular products for processing, with strong adaptability.

Description

Technical Field

[0001] The present invention relates to a flexible grinding device, in particular to a flexible grinding machine and a rectangular path control method. Background Art

[0002] In modern manufacturing and various precision machining fields, workpiece grinding is a key process. Traditional grinding methods mostly rely on manual operation of grinding tools, which have many drawbacks. On the one hand, manual grinding is inefficient. Workers need to repeat high-intensity labor for a long time, which not only easily causes fatigue, resulting in unstable grinding quality, but also has limited output per unit time, making it difficult to meet the rapid delivery requirements of large-scale industrial production. Moreover, manual grinding is difficult to ensure high precision and consistency. Human operation is interfered by factors such as skill proficiency, physical strength, and mood. For workpieces with complex shapes, such as rectangular workpieces with irregular outer contours, it is very difficult to accurately control the grinding path and force, resulting in uneven product quality and a high rejection rate. With the gradual rise of automation technology, some semi-automatic grinding equipment has emerged. However, existing semi-automatic grinding machines often have poor adaptability. Most of them can only grind workpieces with fixed sizes and simple shapes, and lack the ability to flexibly handle rectangular workpieces with different length and width dimensions and variable contours. Their clamping mechanisms are not intelligent enough to quickly and firmly position and clamp workpieces of various specifications; the grinding path control is rough and it is difficult to achieve precise adjustment according to the real-time contour of the workpiece, resulting in unsatisfactory grinding effects. Either the workpiece is over-ground and damaged, or there are defects due to insufficient grinding.

[0003] Therefore, existing flexible grinding devices need to be further improved. Summary of the Invention

[0004] The purpose of the present invention is to provide a flexible grinding machine and a rectangular path control method, which can automatically adjust the rectangular path grinding and adapt to the flexible edge grinding of different rectangular workpieces.

[0005] To achieve the above purpose, the present invention adopts the following solutions:

[0006] A flexible grinding machine includes a grinding equipment body. A clamping mechanism for clamping a workpiece is arranged inside the grinding equipment body. A swinging telescopic rod assembly that can rotate around the clamping mechanism is arranged inside the grinding equipment body. A flexible grinding wheel assembly is arranged at the outer end of the swinging telescopic rod assembly. A width control mechanism for controlling the width range of the edge grinding of the flexible grinding wheel assembly and a length control mechanism for controlling the length range of the edge grinding of the flexible grinding wheel assembly are arranged inside the grinding equipment body. A guide wheel is arranged at the outer end of the swinging telescopic rod assembly. The guide wheel cooperates with the width control mechanism and the length control mechanism to limit the extension distance during the rotation of the swinging telescopic rod assembly. A visual inspection component for detecting the length and width contours of the workpiece is arranged on the grinding equipment body.

[0007] Furthermore, the clamping mechanism includes a fixed base plate arranged in the main body of the grinding equipment, a circular positioning seat is provided in the middle of the fixed base plate, an upper support frame is provided above the fixed base plate, a lifting mechanism is provided on the upper support frame, and a clamping part is provided at the lower end of the lifting mechanism that can cooperate with the circular positioning seat to fix the workpiece.

[0008] Furthermore, the lower surface of the pressing portion and the upper surface of the circular positioning seat are each provided with an anti-slip structure;

[0009] A second base is provided under the fixed base plate, a mode switching motor is provided in the grinding equipment body, the output end of the mode switching motor is fixedly connected to the second base, a displacement component is provided on the second base, and a plurality of auxiliary grinding structures are provided at the front end of the displacement component.

[0010] Furthermore, the swing telescopic rod assembly includes a rotating ring body sleeved on the outer circumferential wall of the circular positioning seat, an elastic telescopic rod assembly is provided on one side of the rotating ring body, a passive gear is provided on the outer circumferential wall of the rotating ring body, an active motor is provided on the fixed base plate on one side of the rotating ring body, and a driving gear is provided at the output end of the active motor, and the driving gear and the passive gear are engaged for transmission.

[0011] Furthermore, the elastic telescopic rod assembly includes a telescopic sleeve arranged on one side of the rotating ring body, a telescopic inner rod is movably arranged in the telescopic sleeve, and an elastic structure for keeping the telescopic inner rod pushed outward is provided between the telescopic sleeve and the telescopic inner rod.

[0012] Furthermore, the flexible grinding wheel assembly includes a grinding wheel motor arranged at the outer end of the telescopic inner rod, and the flexible grinding wheel is installed on the grinding wheel motor.

[0013] Furthermore, the length control mechanism includes two transverse guide grooves arranged on the left and right sides of the fixed base plate, a longitudinal limit rod is movably arranged in the transverse guide groove, a central axis body is provided on the lower surface of the fixed base plate, a first synchronous gear is sleeved on the central axis body, and two first eccentric shafts are evenly distributed on the end surface of the first synchronous gear around the center circumference of the first synchronous gear, a first hinge shaft is provided on the lower end surface of the longitudinal limit rod, a first connecting rod is hinged between the first eccentric shaft and a corresponding first hinge shaft, a first forward and reverse motor is provided on the lower end surface of the fixed base plate, a first gear is provided at the output end of the first forward and reverse motor, and the first gear and the first synchronous gear are engaged for transmission.

[0014] Further, the width control mechanism includes two longitudinal guide grooves disposed on the front and rear sides of the fixed bottom plate. A transverse limiting rod is movably disposed in the longitudinal guide grooves. A second synchronous gear is sleeved on the central shaft body. Two second eccentric shafts are circumferentially distributed around the center of the second synchronous gear on the end face of the second synchronous gear. A second hinge shaft is disposed on the lower end face of the transverse limiting rod. A second connecting rod is hinged between the second hinge shaft and one of the corresponding second eccentric shafts. A second forward and reverse motor is disposed on the lower end face of the fixed bottom plate. A second gear is disposed at the output end of the second forward and reverse motor. The second gear is in meshing transmission with the second synchronous gear.

[0015] Further, the first synchronous gear and the second synchronous gear are stacked up and down on the central shaft body, and the first forward and reverse motor and the second forward and reverse motor are spaced left and right on the fixed bottom plate;

[0016] The longitudinal limiting rod and the transverse limiting rod are stacked up and down;

[0017] The visual inspection assembly includes a plurality of cameras disposed on the upper support frame. The plurality of cameras are used to detect the length and width dimensions of the workpiece.

[0018] A rectangular path control method includes the following steps

[0019] S1. The visual inspection assembly is started to work to capture the length and width contour information of the workpiece after being centered and clamped;

[0020] S2. A control module is disposed in the grinding device body. After receiving the contour information, the control module calculates according to a preset algorithm to calculate the actual outer contour size;

[0021] S3. Calculate by combining the data of the outer contour size and the diameter size of the flexible grinding wheel to obtain the rotation angle data values of the first forward and reverse motor and the second forward and reverse motor, so as to adjust the distance between the two longitudinal limiting rods and the two transverse limiting rods, and make the flexible grinding wheel adapt to the outer contour size of the current rectangular workpiece, and ensure that the flexible grinding wheel is in close contact with the outer contour of the rectangular workpiece for flexible grinding;

[0022] S4. Control the rectangular movement path size of the flexible grinding wheel through the two longitudinal limiting rods and the two transverse limiting rods, so as to adapt to the outer contour grinding of the current workpiece.

[0023] In summary, the beneficial effects of the present invention compared with the prior art are:

[0024] The present invention solves the deficiencies existing in the existing flexible grinding equipment. Through the structural arrangement of the present invention, the following advantages are achieved, ensuring that the flexible grinding wheel can closely fit the outer contour of the rectangular workpiece, realizing high-precision grinding, effectively reducing the grinding error, improving the product quality. The elastic telescopic rod assembly endows the flexible grinding wheel with a certain self-adaptive ability, and with the flexible adjustment of the width and length control mechanisms, the grinding machine can cope with the unevenness of the workpiece surface, the change of the corner arc, etc., meet the diversified grinding requirements, broaden the application scenarios of the equipment, and can quickly adjust the length control mechanism and the width control mechanism according to the size of the outer contour of the rectangular workpiece, so that the flexible grinding wheel assembly always closely adheres to the movement when moving around the outer contour of the workpiece, realizing precise grinding, and at the same time adapting to more rectangular products for processing, with strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Structural schematic diagrams of two grinding devices of the present invention;

[0026] Figure 2 Left view of the switching of two grinding modes of the present invention;

[0027] Figure 3 Stereogram of the equipment of the present invention;

[0028] Figure 4 Cross-sectional view of the present invention;

[0029] Figure 5 One of the stereograms of the present invention;

[0030] Figure 6 Another stereogram of the present invention;

[0031] Figure 7 One of the structural schematic diagrams of the present invention;

[0032] Figure 8 Another structural schematic diagram of the present invention;

[0033] Figure 9 The third structural schematic diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-9, the present invention provides a flexible grinding machine, including a grinding equipment body 1. A clamping mechanism 2 for clamping a workpiece is arranged inside the grinding equipment body 1. A swing telescopic rod assembly 3 that can rotate around the clamping mechanism 2 is arranged inside the grinding equipment body 1. A flexible grinding wheel assembly 4 is arranged at the outer end of the swing telescopic rod assembly 3. A width control mechanism 5 for controlling the edge grinding width range of the flexible grinding wheel assembly 4 and a length control mechanism 6 for controlling the edge grinding length range of the flexible grinding wheel assembly 4 are arranged inside the grinding equipment body 1. A guide wheel 7 is arranged at the outer end of the swing telescopic rod assembly 3. The guide wheel 7 cooperates with the width control mechanism 5 and the length control mechanism 6 to limit the extension distance during the rotation of the swing telescopic rod assembly 3. A visualization detection component 8 for detecting the length and width contours of the workpiece is arranged on the grinding equipment body 1;

[0036] First, place the workpiece to be ground on the clamping mechanism 2 inside the grinding equipment body 1. Specifically, align the workpiece with the circular positioning seat 202 in the middle of the fixed bottom plate 200. The circular positioning seat 202 plays a role in preliminary positioning, ensuring that the workpiece is placed relatively centered, which is convenient for subsequent precise grinding. Then, start the lifting mechanism 204 on the upper support frame 203 at the rear end of the fixed bottom plate 200. The lifting mechanism 204 drives the pressing part 205 at its lower end to move downward. Since anti-slip structures are provided on the lower surface of the pressing part 205 and the upper surface of the circular positioning seat 202, such as textured rubber pads or serrated protrusions, etc., when the pressing part 205 cooperates with the circular positioning seat 202, a large frictional force can be generated to firmly fix the workpiece, avoiding the displacement of the workpiece caused by factors such as vibration and rotational force generated during the subsequent grinding process, and laying a foundation for high-precision grinding.

[0037] After the workpiece is clamped, the driving motor 304 located on one side of the fixed bottom plate 200 starts to work. The driving gear 305 arranged at the output end of the driving motor 304 meshes with the driven gear 303 sleeved on the circumferential outer wall of the rotating ring body 301 of the circular positioning seat 202 for transmission. When the driving motor 304 rotates, through the precise meshing between the gears, the power is smoothly transmitted to the rotating ring body 301, driving the rotating ring body 301 to rotate stably around the circular positioning seat 202. The elastic telescopic rod assembly 302 arranged on one side of the rotating ring body 301 rotates synchronously. The telescopic inner rod 3022 movably arranged in the telescopic sleeve 3021 of the elastic telescopic rod assembly 302, due to the elastic structure 3023 arranged between the two, such as elastic elements like springs, makes the telescopic inner rod 3022 always keep the tendency of protruding outward. At the same time, the grinding wheel motor 401 at the outer end of the telescopic inner rod 3022 starts, driving the flexible grinding wheel 402 installed on it to rotate at a high speed, preparing to grind the outer contour surface of the rectangular workpiece.

[0038] Edge grinding width control: During the grinding process, the edge grinding width range is precisely regulated by the width control mechanism 5. A transverse limiting rod 502 is movably arranged in the longitudinal guide grooves 501 provided on the front and rear sides of the fixed bottom plate 200. Two second eccentric shafts 504 are evenly distributed around the center circumference of the end face of the second synchronous gear 503 sleeved on the central shaft body 602. A second connecting rod 506 is hinged between the second hinge shaft 505 on the lower end face of the transverse limiting rod 502 and the corresponding second eccentric shaft 504. When the second forward and reverse motor 507 on the lower end face of the fixed bottom plate 200 is started, the second gear 508 at its output end drives the second synchronous gear 503 to rotate. As the second synchronous gear 503 rotates, through the linkage of the second eccentric shaft 504 and the second connecting rod 506, the transverse limiting rod 502 is driven to perform a reciprocating linear motion in the longitudinal guide groove 501. The position change of the transverse limiting rod 502 limits the extension distance of the swing telescopic rod assembly 3 in the width direction, thereby precisely controlling the edge grinding width of the flexible grinding wheel assembly 4 and enabling it to be adaptively adjusted according to the width requirements of different workpieces.

[0039] Edge grinding length control: Similar to the edge grinding width control, the edge grinding length range is controlled by the length control mechanism 6. A longitudinal limiting rod 606 is movably arranged in the transverse guide grooves 601 on the left and right sides of the fixed bottom plate 200. A first synchronous gear 603 is sleeved on the central shaft body 602. Two first eccentric shafts 604 are evenly distributed around the circumference of the end face of the first synchronous gear 603. A first connecting rod 605 is hinged between the first hinge shaft 6050 on the lower end face of the longitudinal limiting rod 606 and the first eccentric shaft 604. When the first forward and reverse motor 607 on the lower end face of the fixed bottom plate 200 is started, the first gear 608 at its output end drives the first synchronous gear 603 to rotate. During the rotation of the first synchronous gear 603, with the synergistic effect of the first eccentric shaft 604 and the first connecting rod 605, the longitudinal limiting rod 606 performs a reciprocating linear motion in the transverse guide groove 601. The displacement of the longitudinal limiting rod 606 changes the extension boundary of the swing telescopic rod assembly 3 in the length direction, thereby precisely controlling the edge grinding length of the flexible grinding wheel assembly 4 and meeting the grinding requirements in the length direction of different workpieces.

[0040] The guide wheel 7 provided at the outer end of the swing telescopic rod assembly 3 plays a key auxiliary positioning role during the entire grinding process. The guide wheel 7 operates in coordination with the width control mechanism 5 and the length control mechanism 6. When the rotating ring body 301 drives the elastic telescopic rod assembly 302 to rotate, the guide wheel 7 rolls along the boundary defined by the longitudinal limiting rod 606 and the transverse limiting rod 502, restricting the extension distance of the swing telescopic rod assembly 3 during rotation in real time, realizing the movement along a rectangular path, preventing the flexible grinding wheel assembly 4 from deviating from the predetermined grinding path due to various external force factors, and further ensuring that the flexible grinding wheel 402 always closely adheres to the outer contour of the workpiece and performs grinding according to the precisely set path and range, greatly improving the grinding accuracy and stability.

[0041] The visualization detection component 8 on the grinding equipment body 1 provides intelligent data support for the entire grinding process. A plurality of cameras 801 located on the upper support frame 203 are activated in advance before grinding to quickly and accurately detect the length and width contours of the workpiece, and obtain detailed dimension information of the workpiece. These image data are transmitted to the control module built into the equipment. The control module analyzes and calculates the data according to the preset algorithm to obtain key parameters such as the grinding edge width and length required for the current workpiece. Subsequently, the control module accurately controls the rotation angle, direction of the first forward and reverse motor 607 and the second forward and reverse motor 507, and the rotation speed of the grinding wheel motor 401, etc. according to the calculation results.

[0042] The clamping mechanism 2 of the present invention includes a fixed bottom plate 200 arranged inside the grinding equipment body 1. A circular positioning seat 202 is arranged in the middle of the fixed bottom plate 200. An upper support frame 203 is arranged above the fixed bottom plate 200. A lifting mechanism 204 is arranged on the upper support frame 203. A pressing part 205 that can cooperate with the circular positioning seat 202 to fix the workpiece is arranged at the lower end of the lifting mechanism 204.

[0043] Anti-slip structures are respectively arranged on the lower surface of the pressing part 205 and the upper surface of the circular positioning seat 202 of the present invention;

[0044] A second base 201 is arranged below the fixed bottom plate. A mode switching motor 300 is arranged inside the grinding equipment body 1. The output end of the mode switching motor 300 is fixedly connected to the second base 201. A displacement component 3000 is arranged on the second base 201. A plurality of auxiliary grinding structures 400 are arranged at the front end of the displacement component 3000;

[0045] The mode switching motor 300 can drive the switching of two grinding devices on the fixed bottom plate 200 and the second base 201, and can switch two different grinding modes in the same grinding equipment body 1 according to processing requirements to meet more grinding needs;

[0046] The displacement component 3000 is used to clamp the workpiece for feeding, and feed it to a plurality of auxiliary grinding structures 400 for grinding work in different directions.

[0047] The swing telescopic rod assembly 3 of the present invention includes a rotating ring body 301 sleeved on the circumferential outer wall of the circular positioning seat 202. An elastic telescopic rod assembly 302 is arranged on one side of the rotating ring body 301. A passive gear 303 is arranged on the circumferential outer wall of the rotating ring body 301. An active motor 304 is arranged on the fixed bottom plate 200 on one side of the rotating ring body 301. An active gear 305 is arranged at the output end of the active motor 304. The active gear 305 is meshed with the passive gear 303 for transmission.

[0048] The elastic telescopic rod assembly 302 of the present invention includes a telescopic sleeve 3021 provided on one side of the rotating ring body 301. A telescopic inner rod 3022 is movably arranged in the telescopic sleeve 3021. An elastic structure 3023 for keeping the telescopic inner rod 3022 pushed outwards is arranged between the telescopic sleeve 3021 and the telescopic inner rod 3022.

[0049] The flexible grinding wheel assembly 4 of the present invention includes a grinding wheel motor 401 provided at the outer end of the telescopic inner rod 3022. A flexible grinding wheel 402 is installed on the grinding wheel motor 401;

[0050] The length control mechanism 6 of the present invention includes two transverse guide grooves 601 provided on the left and right sides of the fixed base plate 200. A longitudinal limiting rod 606 is movably arranged in the transverse guide groove 601. A central shaft body 602 is provided on the lower surface of the fixed base plate 200. A first synchronous gear 603 is sleeved on the central shaft body 602. Two first eccentric shafts 604 are evenly distributed around the center of the first synchronous gear 603 on the end face of the first synchronous gear 603. A first hinge shaft 6050 is provided on the lower end face of the longitudinal limiting rod 606. A first connecting rod 605 is hinged between the first eccentric shaft 604 and a corresponding first hinge shaft 6050. A first forward and reverse motor 607 is provided on the lower end face of the fixed base plate 200. A first gear 608 is provided at the output end of the first forward and reverse motor 607. The first gear 608 and the first synchronous gear 603 are in meshing transmission.

[0051] The width control mechanism 5 of the present invention includes two longitudinal guide grooves 501 provided on the front and back sides of the fixed base plate 200. A transverse limiting rod 502 is movably arranged in the longitudinal guide groove 501. A second synchronous gear 503 is sleeved on the central shaft body 602. Two second eccentric shafts 504 are evenly distributed around the center of the second synchronous gear 503 on the end face of the second synchronous gear 503. A second hinge shaft 505 is provided on the lower end face of the transverse limiting rod 502. A second connecting rod 506 is hinged between the second hinge shaft 505 and a corresponding second eccentric shaft 504. A second forward and reverse motor 507 is provided on the lower end face of the fixed base plate 200. A second gear 508 is provided at the output end of the second forward and reverse motor 507. The second gear 508 and the second synchronous gear 503 are in meshing transmission.

[0052] The first synchronous gear 603 and the second synchronous gear 503 of the present invention are stacked up and down on the central shaft body 602. The first forward and reverse motor 607 and the second forward and reverse motor 507 are arranged at intervals left and right on the fixed base plate 200;

[0053] The longitudinal limiting rod 606 and the transverse limiting rod 502 are arranged in an up-and-down stacked manner;

[0054] The visual inspection component 8 includes a plurality of cameras 801 arranged on the upper support frame 203, and the plurality of cameras 801 are used to detect the length and width dimensions of the workpiece.

[0055] A rectangular path control method includes the following steps:

[0056] S1. The visual inspection component 8 starts to work and captures the length and width contour information of the workpiece after being centered and clamped;

[0057] S2. A control module is arranged in the grinding equipment body 1. After receiving the contour information, the control module calculates according to a preset algorithm to calculate the actual outer contour size;

[0058] S3. Calculate by combining the outer contour size data and the diameter size of the flexible grinding wheel 402 to obtain the rotation angle data values of the first forward and reverse motor 607 and the second forward and reverse motor 507, adjust the spacing distance between the two longitudinal limiting rods 606 and the two transverse limiting rods 502, and make the flexible grinding wheel 402 adapt to the outer contour size of the current rectangular workpiece, so as to ensure that the flexible grinding wheel 402 abuts against the outer contour of the rectangular workpiece for flexible grinding;

[0059] S4. Control the rectangular movement path size of the flexible grinding wheel 402 through the two longitudinal limiting rods 606 and the two transverse limiting rods 502, so as to adapt to the outer contour grinding of the current workpiece.

[0060] The visual inspection component 8 starts to operate first. With its precise image acquisition ability, it scans the centered and clamped workpiece in all directions, quickly and accurately captures the length and width contour information of the workpiece. The high-resolution lens used by the camera is combined with the advanced optical sensing technology to ensure that the acquired image is clear and complete, providing a solid data foundation for the subsequent precise grinding operation.

[0061] An intelligent control module is carefully arranged inside the grinding equipment body 1. This module is like the "intelligent brain" of the grinding machine. When receiving the contour information transmitted by the visual inspection component, it immediately and efficiently starts the pre-built precise algorithm program. Through in-depth analysis and complex operations on the image data, it accurately calculates the actual outer contour size of the workpiece, and successfully converts the two-dimensional visual image into a quantitative size value for the equipment to precisely perform the grinding operation.

[0062] The control module further leverages its powerful integration and computational capabilities, cleverly combining the acquired outer contour dimension data with the known diameter of the flexible grinding wheel 402. Based on a rigorous geometric relationship model, it fully considers key factors such as the grinding wheel's fit with the workpiece's outer contour during the grinding process and the grinding allowance. Through a series of complex and precise mathematical calculations, it ultimately derives the precise rotation angle data required for each of the first forward and reverse motors 607 and the second forward and reverse motors 507. Subsequently, the two motors are precisely driven to operate, and the motors drive the corresponding gears to work in perfect harmony, prompting the two longitudinal limit rods 606 and the two transverse limit rods 502 to move flexibly and precisely within the transverse guide grooves, thereby achieving millimeter-level fine adjustment of the distance between them. This ensures that the flexible grinding wheel 402 perfectly matches the outer contour dimensions of the current rectangular workpiece, allowing it to consistently and tightly fit the outer contour of the rectangular workpiece during the grinding operation, allowing for stable and efficient flexible grinding operations.

[0063] Throughout the entire grinding process, the precise boundaries defined by the two longitudinal limit rods 606 and the two transverse limit rods 502 act as an invisible yet precise "track" for the flexible grinding wheel 402, strictly controlling the rectangular movement path of the flexible grinding wheel 402. As the various components of the grinding machine operate in an orderly and coordinated manner, the flexible grinding wheel 402 follows the rectangular path carefully planned by the limit rods, meticulously grinding the workpiece's outer contour in all directions and without blind spots, ensuring the highest possible grinding quality standards and perfectly meeting the diverse grinding needs of workpieces.

[0064] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible grinding machine, comprising a grinding equipment body (1), characterized in that: A clamping mechanism (2) for clamping a workpiece is provided inside the grinding equipment body (1). A swing telescopic rod assembly (3) that can rotate around the clamping mechanism (2) is provided inside the grinding equipment body (1). A flexible grinding wheel assembly (4) is provided at the outer end of the swing telescopic rod assembly (3). A width control mechanism (5) for controlling the grinding edge width range of the flexible grinding wheel assembly (4) and a length control mechanism (6) for controlling the grinding edge length range of the flexible grinding wheel assembly (4) are provided inside the grinding equipment body (1). A guide wheel (7) is provided at the outer end of the swing telescopic rod assembly (3). The guide wheel (7) cooperates with the width control mechanism (5) and the length control mechanism (6) to limit the extension distance during the rotation of the swing telescopic rod assembly (3). A visual inspection component (8) for detecting the length and width profile of the workpiece is provided on the grinding equipment body (1). The clamping mechanism (2) includes a fixed bottom plate (200) provided inside the grinding equipment body (1). The length control mechanism (6) includes two transverse guide grooves (601) provided on the left and right sides of the fixed bottom plate (200). A longitudinal limiting rod (606) is movably provided inside the transverse guide grooves (601). A central shaft body (602) is provided on the lower surface of the fixed bottom plate (200). A first synchronous gear (603) is sleeved on the central shaft body (602). Two first eccentric shafts (604) are circumferentially distributed around the center of the first synchronous gear (603) on the end face of the first synchronous gear (603). A first hinge shaft (6050) is provided on the lower end face of the longitudinal limiting rod (606). A first connecting rod (605) is hinged between the first eccentric shaft (604) and a corresponding first hinge shaft (6050). A first forward and reverse motor (607) is provided on the lower end face of the fixed bottom plate (200). A first gear (608) is provided at the output end of the first forward and reverse motor (607). The first gear (608) and the first synchronous gear (603) are meshed and driven.

2. The flexible grinding machine according to claim 1, characterized in that: The clamping mechanism (2) further includes a circular positioning seat (202) provided in the middle of the fixed bottom plate (200). An upper support frame (203) is provided above the fixed bottom plate (200). A lifting mechanism (204) is provided on the upper support frame (203). A pressing part (205) that can cooperate with the circular positioning seat (202) to fix the workpiece is provided at the lower end of the lifting mechanism (204).

3. The flexible grinding machine according to claim 2, characterized in that: Anti-slip structures are provided on the lower surface of the pressing part (205) and the upper surface of the circular positioning seat (202). A second base (201) is provided below the fixed bottom plate (200). A mode switching motor (300) is provided inside the grinding equipment body (1). The output end of the mode switching motor (300) is fixedly connected to the second base (201). A displacement component (3000) is provided on the second base (201). A plurality of auxiliary grinding structures (400) are provided at the front end of the displacement component (3000).

4. The flexible grinding machine according to claim 3, wherein: The swing telescopic rod assembly (3) includes a rotating ring body (301) sleeved on the circumferential outer wall of the circular positioning seat (202). An elastic telescopic rod assembly (302) is arranged on one side of the rotating ring body (301). A passive gear (303) is arranged on the circumferential outer wall of the rotating ring body (301). An active motor (304) is arranged on the fixed bottom plate (200) on one side of the rotating ring body (301). An active gear (305) is arranged at the output end of the active motor (304). The active gear (305) and the passive gear (303) are in meshing transmission.

5. The flexible grinding machine according to claim 4, wherein: The elastic telescopic rod assembly (302) includes a telescopic sleeve (3021) arranged on one side of the rotating ring body (301). A telescopic inner rod (3022) is movably arranged in the telescopic sleeve (3021). An elastic structure (3023) for keeping the telescopic inner rod (3022) pushed outwards is arranged between the telescopic sleeve (3021) and the telescopic inner rod (3022).

6. The flexible grinding machine according to claim 5, characterized in that: The flexible grinding wheel assembly (4) includes a grinding wheel motor (401) arranged at the outer end of the telescopic inner rod (3022). A flexible grinding wheel (402) is installed on the grinding wheel motor (401).

7. A flexible grinding machine according to claim 6, characterized in that: The width control mechanism (5) includes two longitudinal guide grooves (501) arranged on the front and rear sides of the fixed bottom plate (200). A transverse limiting rod (502) is movably arranged in the longitudinal guide grooves (501). A second synchronous gear (503) is sleeved on the central shaft body (602). Two second eccentric shafts (504) are evenly distributed around the center of the second synchronous gear (503) on the end face of the second synchronous gear (503). A second hinge shaft (505) is arranged on the lower end face of the transverse limiting rod (502). A second connecting rod (506) is hinged between the second hinge shaft (505) and one corresponding second eccentric shaft (504). A second forward and reverse motor (507) is arranged on the lower end face of the fixed bottom plate (200). A second gear (508) is arranged at the output end of the second forward and reverse motor (507). The second gear (508) and the second synchronous gear (503) are in meshing transmission.

8. A flexible grinding machine according to claim 7, characterized in that: The first synchronous gear (603) and the second synchronous gear (503) are stacked up and down on the central shaft body (602). The first forward and reverse motor (607) and the second forward and reverse motor (507) are arranged at left and right intervals on the fixed bottom plate (200); The longitudinal limiting rod (606) and the transverse limiting rod (502) are stacked up and down; The visual inspection component (8) includes a plurality of cameras (801) arranged on the upper support frame (203). The plurality of cameras (801) are used to detect the length and width dimensions of the workpiece.

9. A rectangular path control method, including a flexible grinding machine as described in claim 7, characterized in that The rectangular path control method includes the following steps. S1. The visual inspection component (8) starts to work and captures the length and width contour information of the workpiece after being centered and clamped. S2. It includes a control module. After receiving the contour information, the control module calculates according to a preset algorithm to obtain the actual outer contour size. S3. Calculate by combining the data of the outer contour size and the diameter size of the flexible grinding wheel (402) to obtain the rotation angle data values of the first forward and reverse motor (607) and the second forward and reverse motor (507), adjust the spacing distances between the two longitudinal limit rods (606) and the two transverse limit rods (502), so that the flexible grinding wheel (402) adapts to the outer contour size of the current rectangular workpiece, and ensure that the flexible grinding wheel (402) is in close contact with the outer contour of the rectangular workpiece for flexible grinding. S4. Control the rectangular movement path size of the flexible grinding wheel (402) through the two longitudinal limit rods (606) and the two transverse limit rods (502), so as to adapt to the outer contour grinding of the current workpiece.

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