An intercondylar floating condyle milling device for femoral condyles and an intercondylar milling method

Abstract

The application provides an intercondylar floating polishing device for femoral condyle and an intercondylar polishing method. The device comprises an intercondylar plane floating polishing module, an intercondylar corner floating polishing module and an intercondylar beam floating polishing module which are arranged in an upper and lower spaced manner. The intercondylar plane floating polishing module is used for polishing the intercondylar plane of the femoral condyle to be polished, the intercondylar corner floating polishing module is used for polishing the intercondylar corner of the femoral condyle to be polished, and the intercondylar beam floating polishing module is used for polishing the intercondylar beam of the femoral condyle to be polished. The intercondylar floating polishing device for femoral condyle can be used for various polishing and meets the polishing needs of the intercondylar plane of the femoral condyle. The device is simple in structure, convenient and practical, and solves the problems of slow polishing efficiency and unstable polishing quality caused by using different tools for polishing the intercondylar plane of the femoral condyle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing, in particular to an intercondylar floating polishing device for femoral condyle and an intercondylar polishing method. BACKGROUND

[0002] At present, in the intercondylar polishing process of femoral condyle, the intercondyle of the blank is roughened by a machining center, and then polished manually. Different workpieces or different polishing equipment are required for polishing different positions of the intercondyle. Multiple different polishing equipment not only occupies the limited space of the factory, but also increases the investment and burden of the enterprise. At the same time, due to the high size and appearance requirements of the product, the experience of the polishing workers is required, and there are problems such as slow polishing efficiency and unstable polishing quality. SUMMARY

[0003] In view of this, the present application provides an intercondylar floating polishing device for femoral condyle and an intercondylar polishing method, which aims to solve the problem of slow polishing efficiency and unstable polishing quality caused by using different tools to manually polish the intercondyle of femoral condyle.

[0004] In one aspect, the present application provides an intercondylar floating polishing device for femoral condyle, which comprises: an intercondylar plane floating polishing module, an intercondylar corner floating polishing module and an intercondylar beam floating polishing module; wherein the intercondylar plane floating polishing module, the intercondylar corner floating polishing module and the intercondylar beam floating polishing module are arranged in an upper and lower spaced manner, the intercondylar plane floating polishing module is used for polishing the intercondylar plane of the femoral condyle to be polished, the intercondylar corner floating polishing module is used for polishing the intercondylar corner of the femoral condyle to be polished, and the intercondylar beam floating polishing module is used for polishing the intercondylar beam of the femoral condyle to be polished.

[0005] Further, the intercondylar floating polishing device for femoral condyle comprises: a first floating assembly; a sand belt polishing assembly arranged on the power output end of the first floating assembly, the first floating assembly is used to drive the sand belt polishing assembly to float, so that the power output end of the sand belt polishing assembly and the femoral condyle to be polished are in constant force contact to complete the polishing of the intercondylar plane.

[0006] Further, the above-mentioned intercondylar floating polishing device of femoral condyle, the sand belt polishing assembly comprises: a polishing mounting frame; a tensioning guide rail arranged on the polishing mounting frame and serving as a guide; a tensioning support frame movably arranged on the tensioning guide rail along the length direction of the tensioning guide rail, and the tensioning support frame is connected with an adjusting driving element for driving the tensioning support frame to move along the length direction of the tensioning guide rail, so as to realize the switching of the tensioning state and the loosening state of the polishing sand belt, and further realize the replacement of the polishing sand belt; a power wheel rotatably arranged on the tensioning support frame; two or three sand gun rods arranged on the same plane and arranged on one side of the power wheel, one of the sand gun rods is arranged along the floating direction of the articular surface floating assembly where the polishing mounting frame is arranged, and the other or two sand gun rods are arranged perpendicular to the floating direction of the articular surface floating assembly where the polishing mounting frame is arranged; and an intercondylar plane polishing sand belt arranged around the outer periphery of the power wheel and each sand gun rod, the intercondylar plane polishing sand belt can rotate along the power wheel and each sand gun rod, and further realizes the polishing of the intercondylar plane through the intercondylar plane polishing sand belt at the sand gun rod.

[0007] Further, the above-mentioned intercondylar floating polishing device of femoral condyle, each sand gun rod is provided with an end support wheel at the end away from the power wheel, for rotating and supporting the intercondylar plane polishing sand belt.

[0008] Further, the above-mentioned intercondylar floating polishing device of femoral condyle, an auxiliary roller is arranged between the power wheel and the two sand gun rods, for guiding the trajectory of the intercondylar plane polishing sand belt during rotation.

[0009] Further, the above-mentioned intercondylar floating polishing device of femoral condyle, the intercondylar corner floating polishing module comprises: a second floating assembly; and a grinding head polishing assembly arranged on the power output end of the second floating assembly, the second floating assembly is used to drive the grinding head polishing assembly to float, so that the power output end of the grinding head polishing assembly maintains constant force contact with the femoral condyle to be polished to complete the polishing of the intercondylar corner.

[0010] Further, the above-mentioned intercondylar floating polishing device of femoral condyle, the grinding head polishing assembly comprises: an electric grinding shaft; and a grinding tool handle arranged at the end of the electric grinding shaft, for supporting the grinding head to polish the intercondylar corner of the workpiece to be polished.

[0011] Furthermore, the aforementioned intercondylar floating grinding device for the femoral condyle includes an intercondylar beam floating grinding module comprising: a third floating component; and a wheel grinding component disposed on the power output end of the third floating component. The third floating component is used to drive the wheel grinding component to float, so that the power output end of the wheel grinding component maintains constant force contact with the femoral condyle to be ground to complete the grinding of the intercondylar beam.

[0012] Furthermore, in the aforementioned intercondylar floating grinding device for the femoral condyle, the wheel grinding assembly includes: a rotating grinding shaft connected to a wheel drive component for driving the rotating grinding shaft to rotate; and a grinding wheel disposed at the power output end of the rotating grinding shaft for grinding the intercondylar crossbeam of the workpiece to be ground.

[0013] Furthermore, the present invention also proposes a method for intercondylar grinding of the femoral condyle, comprising the following steps: using an intercondylar beam floating grinding module to grind the intercondylar beam of the femoral condyle to be ground; after the intercondylar beam is ground, using an intercondylar plane floating grinding module to grind the intercondylar plane of the femoral condyle to be ground; after the intercondylar plane is ground, using an intercondylar corner floating grinding module to grind the intercondylar corner of the femoral condyle to be ground.

[0014] The intercondylar floating grinding device and method for femoral condyles provided by this invention grind the intercondylar plane of the femoral condyle to be ground using an intercondylar plane floating grinding module, the intercondylar corner floating grinding module, and the intercondylar beam floating grinding module. This intercondylar floating grinding device can perform various grinding operations to meet the grinding needs of the intercondylar region of the femoral condyle. It is a simple, convenient and practical intercondylar floating grinding device for femoral condyles, solving the problems of slow grinding efficiency and unstable grinding quality caused by the use of different tools in existing manual grinding of the intercondylar region of the femoral condyle. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0016] Figure 1 A schematic diagram of the intercondylar floating grinding device for the femoral condyle provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the intercondylar plane floating polishing module provided in an embodiment of the present invention;

[0018] Figure 3This is a schematic diagram of the structure of the first floating component provided in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the intercondylar angle floating grinding module provided in an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the floating grinding module for the intercondylar beam provided in an embodiment of the present invention;

[0021] Figure 6 A flowchart illustrating the intercondylar polishing method provided in an embodiment of the present invention;

[0022] Explanation of reference numerals in the attached drawings: 1-Floating grinding bracket, 2-Intercondylar plane floating grinding module, 21-First floating component, 211-Mounting support, 212-Floating guide rail, 213-Floating drive component, 214-Floating plate, 215-Position sensor, 216-Bellblock dust cover, 22-Belt sanding assembly, 221-Grinding mounting bracket, 2211-Grinding support base plate, 2212-Guide rail mounting bracket, 222-Tensioning support bracket, 2221-Hinge plate, 2222-Fixed support plate, 2223-Rotating shaft, 2224-Adjusting component, 223-Drive wheel, 224-Sand gun rod, 225 - Intercondylar plane grinding sanding belt, 226- End support wheel, 227- Adjustment drive component, 228- Auxiliary roller, 229- Sanding belt drive component, 2210- Bellows cover, 3- Intercondylar angle floating grinding module, 31- Second floating component, 32- Grinding head grinding component, 321- Electric grinding shaft, 322- Grinding tool holder, 323- Grinding head, 324- Electric spindle fixing block, 4- Intercondylar crossbeam floating grinding module, 41- Third floating component, 42- Wheel grinding component, 421- Rotary grinding shaft, 422- Wheel drive component, 423- Grinding wheel, 424- Wheel grinding bearing seat, 425- Pressure plate. Detailed Implementation

[0023] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features described herein are combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Equipment Example:

[0025] See Figure 1This is a schematic diagram of the intercondylar floating grinding device for the femoral condyle provided in an embodiment of the present invention. As shown in the figure, this intercondylar floating grinding device for the femoral condyle, as an integrated floating grinding device, includes: a floating grinding support 1, an intercondylar plane floating grinding module 2, an intercondylar corner floating grinding module 3, and an intercondylar beam floating grinding module 4; wherein, the floating grinding support 1 serves a supporting function; the intercondylar plane floating grinding module 2, the intercondylar corner floating grinding module 3, and the intercondylar beam floating grinding module 4 are arranged vertically and alternately on the floating grinding support 1, the intercondylar plane floating grinding module 2 is used to grind the intercondylar plane of the femoral condyle to be ground, the intercondylar corner floating grinding module 3 is used to grind the intercondylar corner of the femoral condyle to be ground, and the intercondylar beam floating grinding module 4 is used to grind the intercondylar beam of the femoral condyle to be ground.

[0026] Specifically, the floating grinding bracket 1 provides support and is welded from carbon steel profiles. The intercondylar plane floating grinding module 2 is positioned on top of the floating grinding bracket 1 to grind the intercondylar plane of the femoral condyle to be ground. In this embodiment, two intercondylar plane floating grinding modules 2 are arranged at intervals along the same horizontal position. Both modules 2 are abrasive belt grinding modules, enabling rapid grinding of the intercondylar plane and improving grinding efficiency. The two modules 2 use abrasive belts with different mesh sizes to achieve different roughnesses on the intercondylar plane, specifically grinding from coarse to fine to ensure the desired roughness is achieved. The intercondylar angle floating grinding module 3 is positioned in the middle of the floating grinding support 1, between the intercondylar plane floating grinding module 2 and the intercondylar beam floating grinding module 4. It grinds the intercondylar angle of the femoral condyle to be ground. In this embodiment, there are two intercondylar angle floating grinding modules 3, arranged at intervals along the same horizontal position. Both modules 3 are grinding head modules, grinding the small intercondylar angle of the femoral condyle to ensure accuracy and avoid grinding other areas. The grinding heads 323 of the two modules 3 are different to grind different angle positions. The intercondylar beam floating grinding module 4 is located at the lower part of the floating grinding support 1. It grinds the intercondylar beam of the femoral condyle to be ground. In this embodiment, the intercondylar beam floating grinding module 4 is a wheel grinding module, which grinds the intercondylar beam of the femoral condyle to be ground to ensure grinding efficiency. The intercondylar region of the femoral condyle to be ground has a beam that connects the two posterior condyles.

[0027] See Figure 2This is a schematic diagram of the intercondylar plane floating grinding module provided in an embodiment of the present invention. The intercondylar plane floating grinding module 2 includes: a first floating component 21 and an abrasive belt grinding component 22; wherein, the abrasive belt grinding component 22 is disposed on the power output end of the first floating component 21, and the first floating component 21 is used to drive the abrasive belt grinding component 22 to float, so that the power output end of the abrasive belt grinding component 22 maintains constant force contact with the femoral condyle to be ground to complete the grinding of the intercondylar plane.

[0028] Specifically, the fixed end of the first floating component 21 is fixedly mounted on the floating grinding bracket 1 with screws, and the fixed end of the abrasive belt grinding component 22 is fixedly mounted on the power output end of the first floating component 21. This allows the abrasive belt grinding component 22 to float along with the power output end of the first floating component 21, maintaining a constant force contact between the power output end of the abrasive belt grinding component 22 (i.e., the abrasive belt) and the intercondylar plane of the femoral condyle to be ground, thus completing the grinding of the intercondylar plane. Furthermore, the floating of the first floating component 21 also compensates for the grinding of the femoral condyle. Here, constant force refers to cutting force, which can be adjusted by the floating of the first floating component 21. The first floating component 21 also has a compensation function, namely grinding compensation. That is, the cutting force of the abrasive belt is greatest when it is new, but as the number of grinding cycles increases, the cutting force of the abrasive belt decreases. Correspondingly, we increase this thrust, i.e., constant force, to compensate for this cutting force.

[0029] In one embodiment of this example, the structure of the first floating component 21 is described in Chinese Publication No. CN216608577 U, which discloses a floating component for a grinding device. The structure will not be described in detail in this embodiment.

[0030] In other embodiments of this example, such as Figure 3As shown, the first floating assembly 21 includes: a mounting support 211, a floating guide rail 212, a floating drive component 213, and a floating plate 214. The mounting support 211 provides support; the floating guide rail 212 is mounted on the mounting support 211 and provides floating guidance; the floating plate 214 is movably mounted on the floating guide rail 212, and the floating plate 214 is connected to the floating drive component 213, which drives the floating plate 214 to move along the floating guide rail 212, thus achieving floating. Specifically, the mounting support 211 is fixed to the frame 1 or the floating grinding bracket 1 with screws. The fixed ends of the floating guide rail 212 and the floating drive component 213 are both installed inside the mounting support 211. The floating guide rail 212 provides support and guidance. The floating plate 214 is mounted on the floating guide rail 212, and the floating drive component 213 provides power, driving the floating plate 214 to move left and right, thus achieving floating. In this embodiment, a position sensor 215 is also provided on the mounting bracket 211 to obtain the position of the floating plate 214. The position sensor 215 is connected to a floating controller to control the floating drive component 213 based on the position of the floating plate 214, thereby controlling the movement of the floating plate 214. This allows the floating plate 214 to move left and right, maintaining a constant contact force between the abrasive belt of the belt grinding assembly 22 and the femoral condyle to be ground, and also achieving grinding compensation. The position sensor 215 is a grating ruler, installed on the side of the mounting bracket 211. In this embodiment, an accordion dust cover 216 is provided between the mounting bracket 211 and the floating plate 214 to cover the exposed portion between the mounting bracket and the floating plate 214, serving a dustproof function.

[0031] See also Figure 2The belt sander assembly 22 is a narrow belt sander, including: a sanding mounting frame 221, a tension guide rail, a tension support frame 222, a drive wheel 223, a sanding gun rod 224, and an intercondylar surface sanding belt 225. The sanding mounting frame 221 provides support; the tension guide rail is mounted on the sanding mounting frame 221 and provides guidance; the tension support frame 222 is movably mounted on the tension guide rail along its length, and is connected to an adjustment drive component 227 to drive the tension support frame 222 to move along the length of the tension guide rail, thereby switching the sanding belt between tensioned and untensioned states and allowing for belt replacement; the drive wheel 223 is rotatably mounted on the tension support frame 222; and two or three sanding gun rods are mounted on the same plane. 224 are all arranged on one side of the power wheel 223. One sanding gun rod 224 is arranged along the floating direction of the first floating component 21, and the other one or two sanding gun rods 224 are arranged perpendicular to the floating direction of the first floating component 21. Each sanding gun rod 224 has an end support wheel 226 at the end away from the power wheel 223. The intercondylar plane grinding sanding belt 225 is wrapped around the outer periphery of the power wheel 223, each sanding gun rod 224 and each end support wheel 226. An auxiliary roller 228 is provided between the power wheel 223 and the two sanding gun rods 224 to guide the trajectory of the intercondylar plane grinding sanding belt 225 when it rotates, so that the intercondylar plane grinding sanding belt 225 can rotate along the power wheel 223 and each sanding gun rod 224, and thus the intercondylar plane is ground by the intercondylar plane grinding sanding belt 225 at the sanding gun rod 224.

[0032] Specifically, the grinding mounting bracket 221 is fixedly mounted on the floating plate 214 of the first floating component 21, so that the first floating component 21 drives the sanding belt grinding component 22 to move in one direction, achieving floating and grinding compensation. The tensioning guide rail is mounted on the grinding mounting bracket 221 to guide the movement of the tensioning support bracket 222; in this embodiment, the tensioning guide rail is arranged perpendicular to the floating direction of the floating plate 214, but it can also be arranged parallel or along other directions. The perpendicular arrangement makes the structure of the first grinding module compact. The tensioning support frame 222 is movably mounted on the tensioning guide rail along its length. The adjusting drive component 227 is a cylinder, with its fixed end fixedly mounted on the grinding mounting frame 221 and its power output end fixedly connected to the tensioning support frame 222. This cylinder drives the tensioning support frame 222 to slide along the tensioning guide rail, thereby moving the power wheel 223 mounted on the tensioning support frame 222. This causes the intercondylar surface grinding belt 225 wound around the power wheel 223 to loosen or tighten. In this embodiment, the tensioning support frame 222 has two stroke points along the tensioning guide rail, respectively switching between the loosened and tightened states of the intercondylar surface grinding belt 225. To prevent dust from entering the interior of the grinding mounting frame 221, preferably, a bellows cover 2210 is provided between the grinding mounting frame 221 and the tensioning support frame 222 to cover the exposed portion between them, preventing dust from entering.

[0033] In this embodiment, the drive wheel 223 is positioned on the side opposite to the tensioning support frame 222 (e.g., Figure 2On the left side, there are multiple sanding gun rods 224 located on the same plane. Each sanding gun rod 224 has an end support wheel 226 at the sanding belt support end. The end support wheel 226 is rotatably mounted on the sanding belt support end of the sanding gun rod 224. There are two or three sanding gun rods 224. In this embodiment, three are used as an example. One is a forward sanding gun rod 224, which is arranged parallel to the length direction of the tensioning guide rail, that is, perpendicular to the floating direction of the floating plate 214. It grinds the intercondylar plane through the side sanding belt, especially to grind the two side walls of the intercondylar groove of the U-shaped structure. That is, constant force contact and compensation are achieved through floating. The other two are lateral sanding gun rods 224, arranged perpendicularly to the lateral sanding gun rod 224 on both sides, i.e., parallel to the floating direction of the floating plate 214. They grind the intercondylar plane through the sanding belt at their ends, especially achieving grinding of the groove depth of the U-shaped intercondylar groove, i.e., achieving constant force contact and compensation through floating. Of course, there are also two sanding gun rods 224, one lateral and one forward. In this embodiment, the drive wheel 223 is connected to a sanding belt drive 229, used to drive the drive wheel 223 to rotate, thereby achieving grinding of the intercondylar plane. The drive wheel 223 is a servo motor, with its fixed end mounted on the tension support frame 222, and its power output end, i.e., the power shaft, connected to the drive wheel 223 via a key. In this embodiment, to allow the intercondylar grinding belt 225 to wrap around the outer periphery of the drive wheel 223 and each sanding gun rod 224, auxiliary rollers 228 are provided on the trajectory of the intercondylar grinding belt 225, located outside the belt, to limit its movement and guide its rotation. In this embodiment, when there are two sanding gun rods 224, there are three auxiliary rollers 228; when there are three sanding gun rods 224, there are four auxiliary rollers 228.

[0034] In this embodiment, the grinding mounting bracket 221 includes a grinding support base plate 2211 and a guide rail mounting bracket 2212; wherein, the grinding support base plate 2211 is fixed on the floating plate 214, and the sanding belt grinding assembly 22 is driven by the first floating component 21 to achieve unidirectional movement, and the guide rail mounting bracket 2212 is installed on the rear side of the grinding support base plate 2211.

[0035] In this embodiment, the tensioning support frame 222 includes: a hinge plate 2221 and a fixed support plate 2222; wherein, the fixed support plate 2222 is used to provide rotational support for the drive wheel 223; the fixed support plate 2222 is rotatably connected to the hinge plate 2221 and is used to adjust the axial angle of the drive wheel 223 so that the intercondylar plane grinding sanding belt 225 can be balanced and wound around the drive wheel 223, avoiding the intercondylar plane grinding sanding belt 225 from jumping and solving the problem of the sanding belt running off course and flying off from the drive wheel 223 during rotation. Specifically, the hinge plate 2221 is slidably mounted on the guide rail, and the fixed support plate 2222 has an inverted L-shaped structure. Its bottom end is rotatably connected to the hinge plate 2221 via a rotating shaft 2223. The fixed support plate 2222 is hinged to the power output end of the adjusting drive component 227 via an adjusting component 2224. One end of the adjusting component 2224 is hinged to the power output end of the adjusting drive component 227, and the other end is fixed to the fixed support plate 2222. When adjusting the axis of the power wheel 223, the adjustment is made through the adjusting component 2224 and the fixed support plate 2222 to adjust the angle of the axis of the power wheel 223. After the adjustment is completed, the components are tightened to prevent the adjusting component 2224 and the fixed support plate 2222 from rotating arbitrarily.

[0036] See Figure 4 This is a schematic diagram of the intercondylar angle floating grinding module provided in an embodiment of the present invention. As shown in the figure, the intercondylar angle floating grinding module 3 includes: a second floating component 31 and a grinding head component 32; wherein, the grinding head component 32 is disposed on the power output end of the second floating component 31, and the second floating component 31 is used to drive the grinding head component 32 to float, so that the power output end of the grinding head component 32 maintains constant force contact with the femoral condyle to be ground to complete the grinding of the intercondylar angle. Specifically, the fixed end of the second floating component 31 is fixedly mounted on the floating grinding bracket 1 by screws, and the grinding head grinding component 32 is mounted on the power output end of the second floating component 31 so that the grinding head grinding component 32 as a whole can float with the power output end of the second floating component 31, so that the power output end of the grinding head grinding component 32, i.e. the grinding head 323, maintains constant force contact with the intercondylar angle of the femoral condyle to be ground, thereby completing the grinding of the intercondylar angle. Of course, the grinding compensation of the femoral condyle to be ground is also achieved by the floating of the second floating component 31.

[0037] See also Figure 4The grinding head assembly 32 includes an electric grinding shaft 321 and a grinding shank 322. The grinding shank 322 is located at the end of the electric grinding shaft 321 and is used to support the grinding head 323 for grinding the intercondylar angle of the femoral condyle. Specifically, the electric grinding shaft 321 is mounted on the floating plate 214 of the second floating assembly 31 via an electric spindle fixing block 324, which holds the electric grinding shaft 321 in a clamping manner so that it floats synchronously with the floating plate 214 of the second floating assembly 31. In this embodiment, the electric spindle fixing block 324 is fixedly installed on the floating plate 214 of the second floating assembly 31. The electric grinding shaft 321 is perpendicular to the floating direction of the second floating assembly 31 and is rotatably mounted on the electric spindle fixing block 324. This allows the second floating assembly 31 to float synchronously when the electric grinding shaft 321 drives the grinding handle 322 and the grinding head 323 to rotate and grind, achieving constant force contact and compensation in the grinding direction. One end of the grinding handle 322 is detachably connected to the front end of the electric grinding shaft 321, and the other end of the grinding handle 322 is locked with the grinding head 323. The grinding head 323 rotates under the driving action of the electric grinding shaft 321, thereby achieving the rotation of the grinding head 323 and thus grinding the intercondylar angle.

[0038] It can be seen that the grinding head assembly 32 is driven by an electric grinding shaft 321. Compared with servo motor drive, it has a higher speed and the corner position is smoother when grinding.

[0039] See Figure 5 This is a schematic diagram of the intercondylar beam floating grinding module provided in an embodiment of the present invention. As shown in the figure, the intercondylar beam floating grinding module 4 includes: a third floating component 41 and a wheel grinding component 42; wherein, the wheel grinding component 42 is disposed on the power output end of the third floating component 41, and the third floating component 41 is used to drive the wheel grinding component 42 to float, so that the power output end of the wheel grinding component 42 maintains constant force contact with the femoral condyle to be ground to complete the grinding of the intercondylar beam. Specifically, the fixed end of the third floating component 41 is fixedly mounted on the floating grinding bracket 1 by screws, and the wheel grinding component 42 is mounted on the power output end of the third floating component 41 so that the wheel grinding component 42 as a whole can float with the power output end of the third floating component 41, so that the power output end of the wheel grinding component 42 maintains constant force contact with the intercondylar beam of the femoral condyle to be ground, thereby completing the grinding of the intercondylar beam. Of course, the grinding compensation of the femoral condyle to be ground is also achieved by the floating of the third floating component 41.

[0040] In this embodiment, the third floating component 41 and the second floating component 31 refer to the first floating component 21, and will not be described in detail here.

[0041] See also Figure 5The wheel grinding assembly 42 includes a rotating grinding shaft 421, a wheel drive component 422, and a grinding wheel 423. The rotating grinding shaft 421 is connected to the wheel drive component 422 for driving the rotating grinding shaft 421 to rotate. The grinding wheel 423 is located at the power output end of the rotating grinding shaft 421 and is used to grind the intercondylar eminence of the femoral condyle. Specifically, the rotating grinding shaft 421 is mounted on the floating plate 214 of the third floating assembly 41 via a wheel grinding bearing seat 424, so as to move with the floating plate 214 of the third floating assembly 41. The rotating grinding shaft 421 passes through the wheel grinding bearing seat 424, its right end is connected to the wheel drive component 422, and a pressure plate 425 is provided at the left end of the rotating grinding shaft 421 for fixing the grinding wheel 423. The drive component 422 is a servo spindle. When it rotates, it drives the grinding wheel 423 at the front end to rotate by rotating the grinding shaft 421. The grinding wheel 423 contacts the crossbeam of the workpiece to be ground, thus achieving the grinding effect. Compared with an electric spindle, the servo spindle has a lower speed and higher torque, which improves the grinding efficiency.

[0042] In summary, the intercondylar floating grinding device for femoral condyles provided in this embodiment grinds the intercondylar plane of the femoral condyle using an intercondylar plane floating grinding module, the intercondylar corner floating grinding module, and the intercondylar beam floating grinding module. This device can perform various grinding operations to meet the grinding needs of the intercondylar region of the femoral condyle. It is a simple, convenient, and practical intercondylar floating grinding device for femoral condyles, solving the problems of slow grinding efficiency and unstable grinding quality caused by using different tools in existing manual grinding of the intercondylar region of the femoral condyle.

[0043] Method Implementation Examples:

[0044] See Figure 6 This is a flowchart illustrating the intercondylar grinding method for the femoral condyle provided in this embodiment of the invention. As shown in the figure, this intercondylar grinding method uses the aforementioned floating intercondylar grinding device to grind the intercondylar region of the femoral condyle, and includes the following steps:

[0045] Step S1: The intercondylar beam floating grinding module is used to grind the intercondylar beam of the femoral condyle to be ground.

[0046] Step S2: After the intercondylar beam is ground, the intercondylar plane floating grinding module is used to grind the intercondylar plane of the femoral condyle to be ground.

[0047] Step S3: After the intercondylar plane is ground, the intercondylar angle floating grinding module is used to grind the intercondylar angle of the femoral condyle to be ground.

[0048] In summary, the intercondylar floating grinding device for femoral condyles provided in this embodiment grinds the intercondylar plane of the femoral condyle using an intercondylar plane floating grinding module, the intercondylar corner floating grinding module, and the intercondylar beam floating grinding module. This intercondylar floating grinding device can perform various grinding operations to meet the needs of intercondylar grinding of the femoral condyles. It is a simple, convenient, and practical intercondylar floating grinding device for femoral condyles, solving the problems of slow grinding efficiency and unstable grinding quality caused by using different tools in existing manual grinding of the intercondylar region of the femoral condyle.

[0049] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0050] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection through an intermediate medium; or they may refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A floating intercondylar grinding device for the femoral condyle, characterized in that, The intercondylar floating polishing device includes: an intercondylar planar floating polishing module, an intercondylar corner floating polishing module, and an intercondylar crossbeam floating polishing module; wherein, The intercondylar plane floating grinding module, the intercondylar angle floating grinding module, and the intercondylar beam floating grinding module are arranged vertically at intervals. The intercondylar plane floating grinding module is used to grind the intercondylar plane of the femoral condyle to be ground, the intercondylar angle floating grinding module is used to grind the intercondylar angle of the femoral condyle to be ground, and the intercondylar beam floating grinding module is used to grind the intercondylar beam of the femoral condyle to be ground. The intercondylar plane floating polishing module includes: First floating component; A belt abrasive assembly is mounted on the power output end of the first floating assembly. The first floating assembly is used to drive the belt abrasive assembly to float so that the power output end of the belt abrasive assembly maintains constant force contact with the femoral condyle to be abraded to complete the abrasion of the intercondylar plane. The belt abrasive assembly includes: Grinding the mounting bracket; The tension guide rail is set on the grinding mounting bracket and serves as a guide; The tensioning support frame is movably mounted on the tensioning guide rail along its length direction. The tensioning support frame is connected to an adjustment drive component to drive the tensioning support frame to move along the length direction of the tensioning guide rail, thereby switching the tensioned and untensioned states of the abrasive belt and thus enabling the replacement of the abrasive belt. The drive wheel is rotatably mounted on the tensioning support frame; Two or three sanding gun rods are arranged on the same plane, all on one side of the power wheel. One of the sanding gun rods is arranged along the floating direction of the joint surface floating assembly where the grinding mounting frame is located, and the other or two sanding gun rods are arranged perpendicular to the floating direction of the joint surface floating assembly where the grinding mounting frame is located. A sanding belt for grinding the intercondylar plane is arranged around the outer periphery of the power wheel and each of the sanding gun rods. The sanding belt for grinding the intercondylar plane can rotate along the power wheel and each of the sanding gun rods, thereby achieving the grinding of the intercondylar plane through the sanding belt for grinding the intercondylar plane at the sanding gun rods.

2. The intercondylar floating grinding device for the femoral condyle according to claim 1, characterized in that, Each of the sanding gun rods has an end support wheel at the end away from the power wheel, which is used to rotate and support the sanding belt for grinding the intercondylar plane.

3. The intercondylar floating grinding device for the femoral condyle according to claim 1, characterized in that, An auxiliary roller is provided between the power wheel and the two sanding gun rods to guide the trajectory of the sanding belt rotating during the intercondylar plane grinding.

4. The intercondylar floating grinding device for the femoral condyle according to any one of claims 1 to 3, characterized in that, The intercondylar angle floating polishing module includes: Second floating component; The grinding head assembly is mounted on the power output end of the second floating assembly. The second floating assembly is used to drive the grinding head assembly to float so that the power output end of the grinding head assembly maintains constant force contact with the femoral condyle to be ground to complete the grinding of the intercondylar angle.

5. The intercondylar floating grinding device for the femoral condyle according to claim 4, characterized in that, The grinding head assembly includes: Electric grinder shaft; A grinding shank, located at the end of the electric grinding shaft, is used to support the grinding head for grinding the intercondylar angle of the workpiece to be ground.

6. The intercondylar floating grinding device for the femoral condyle according to any one of claims 1 to 3, characterized in that, The intercondylar crossbeam floating grinding module includes: Third floating component; A wheel grinding assembly is mounted on the power output end of the third floating assembly. The third floating assembly is used to drive the wheel grinding assembly to float, so that the power output end of the wheel grinding assembly maintains constant force contact with the femoral condyle to be ground to complete the grinding of the intercondylar beam.

7. The intercondylar floating grinding device for the femoral condyle according to claim 6, characterized in that, The wheel grinding assembly includes: The rotating grinding shaft is connected to a wheel drive component, which is used to drive the rotating grinding shaft to rotate. A grinding wheel, located at the power output end of the rotating grinding shaft, is used to grind the intercondylar crossbeam of the workpiece to be ground.

8. A method for intercondylar grinding using the intercondylar floating grinding device of any one of claims 1 to 7, characterized in that, Includes the following steps: The intercondylar beam floating grinding module is used to grind the intercondylar beam of the femoral condyle to be ground; After the intercondylar beam is ground, the intercondylar plane floating grinding module is used to grind the intercondylar plane of the femoral condyle to be ground; After the intercondylar plane is ground, the intercondylar angle floating grinding module is used to grind the intercondylar angle of the femoral condyle to be ground.

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