A femoral prosthesis machining apparatus

Abstract

This invention discloses a femoral prosthesis processing device, which relates to the field of femoral prosthesis processing technology. It includes a fixation frame with three rotating holes. The two rotating holes on the right side are vertically arranged. A motor is fixedly connected to the rear side of the fixation frame, and a first gear is fixedly connected to the output end of the motor. A rotating rod is rotatably connected to the inner wall of each rotating hole via a bearing. A second gear is fixedly connected to the outer wall of the rear end of the rotating rod, and the outer wall of the second gear meshes with the outer wall of the first gear. An abrasive belt is fitted onto the front side of the outer wall of the three rotating rods. A tensioning mechanism and a cooling mechanism are provided on the front side of the fixation frame. This invention uses a rotatable abrasive belt to grind the workpiece and adjusts the tension of the abrasive belt using a liftable pressure wheel, thereby reducing grinding errors. It is highly practical and can reduce dimensional errors generated during femoral prosthesis processing.

Description

Technical Field

[0001] This invention relates to the field of femoral prosthesis processing technology, specifically to a femoral prosthesis processing device. Background Technology

[0002] The femur, also known as the thigh bone, tibia, or femur, is the longest tubular bone in the human body. Its upper end forms the hip joint with the acetabulum, and its lower end forms the knee joint with the patella and the upper end of the tibia, supporting the body's weight.

[0003] After a joint injury, the damaged joint needs to be replaced with an artificial prosthesis to support the patient's movement needs. Artificial hip joint prostheses are the most mature and complex system among joint prostheses. There are many brands and types of prostheses available on the market. When choosing a prosthesis that is suitable for a patient, differences in materials, size, manufacturing process, and the patient's physical condition need to be considered.

[0004] During the production of implants, the metal parts used need to be polished and adapted. During the polishing process, factors such as thermal deformation of the abrasive belt can cause changes in pressure between the abrasive belt and the implant with a preset movement path, which in turn affects the polishing effect. Therefore, a device is needed to reduce the polishing error caused by pressure changes during the polishing process.

[0005] Therefore, it is necessary to design a femoral prosthesis processing equipment that is highly practical and can reduce dimensional errors in the processing of femoral prostheses. Summary of the Invention

[0006] The purpose of this invention is to provide a femoral prosthesis processing device to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a femoral prosthesis processing device, including a fixation frame, the fixation frame having three rotating holes, the two rotating holes on the right side being vertically arranged, a motor fixedly connected to the rear side of the fixation frame, a first gear fixedly connected to the output end of the motor, a rotating rod rotatably connected to the inner wall of the rotating hole via a bearing, a second gear fixedly connected to the outer wall of the rear end of the rotating rod, the outer wall of the second gear meshing with the outer wall of the first gear, an abrasive belt sleeved on the front side of the outer wall of the three rotating rods, a tensioning mechanism and a cooling mechanism provided on the front side of the fixation frame, a support mechanism provided on the right side of the fixation frame, and a control module fixedly connected to the upper rear side of the fixation frame;

[0008] The tensioning mechanism includes a fixed component and a lifting and lowering pressure wheel and bearing wheel on the fixed component. The pressure wheel can adjust the tension of the sanding belt by its own lifting and lowering displacement.

[0009] The cooling mechanism includes a flow guiding component and a cooling box. A channel is provided on the upper rear part of the cooling box, and the inner wall of the channel has a structure that is higher on both sides and lower in the middle.

[0010] According to the above technical solution, the fixing assembly includes a first electric telescopic rod, the outer wall of which is fixedly connected to the lower front part of the fixing frame, a first fixing seat fixedly connected to the upper end of the first electric telescopic rod, a pressure wheel rotatably connected to the rear side of the first fixing seat via a bearing, the lower side of the outer wall of the pressure wheel contacting the outer wall of the inner ring of the sanding belt, the fixing assembly also includes a spring frame, the lower end of which is fixedly connected to the upper front part of the fixing frame, a first spring fixedly connected to the lower side of the spring frame, an upper pull plate fixedly connected to the lower end of the first spring, a sliding rod slidably connected to the upper front part of the fixing frame, a lower pull plate fixedly connected to the upper end of the sliding rod, a groove formed on the upper side of the lower pull plate, a tensioner fixedly connected to the lower side of the inner wall of the groove, the upper surface of the tensioner fixedly connected to the lower end of the upper pull plate, a second fixing seat fixedly connected to the front side of the sliding rod, a bearing wheel rotatably connected to the lower rear part of the second fixing seat via a bearing, the upper side of the bearing wheel contacting the outer wall of the inner ring of the sanding belt.

[0011] According to the above technical solution, the tensioner is electrically connected to the control module, the first electric telescopic rod is electrically connected to the control module, the sanding belt can pull the pressure wheel to move up and down, and when the tensioner bears a tension exceeding a preset threshold, the first electric telescopic rod can be activated by the control module to perform telescopic operation.

[0012] According to the above technical solution, the flow guiding assembly includes a rear fixing plate, the rear side of which is fixedly connected to the outer wall of the fixing frame, the rear side of the cooling box is fixedly connected to the front side of the rear fixing plate, a channel is provided on the upper rear side of the cooling box, an exhaust duct is provided on the lower rear side of the cooling box, a sealing box is fixedly connected to the right side of the cooling box, the rear side of the sealing box is fixedly connected to the front side of the rear fixing plate, the interior of the sealing box has a hollow structure, and the left side of the sealing box is connected to the channel and the exhaust duct on the cooling box respectively, an opening is provided on the right side of the sealing box, a drain port is provided on the lower side of the exhaust duct inside the cooling box, a sealing door is hinged to the inner wall of the drain port, a filter screen is fixedly connected to the left side of the inner wall of the exhaust duct, a duct is fixedly connected to the left end of the inner wall of the exhaust duct, the other end of the duct extends through the fixing frame to the rear side of the fixing frame, a fan is fixedly connected to the rear side of the fixing frame, the rear end of the duct is fixedly connected to the input end of the fan, and the interior of the exhaust duct is connected to the input end of the fan through the duct.

[0013] According to the above technical solution, the upper part of the sanding belt is located inside the channel inside the cooling box, and the sanding belt passes through the left side of the cooling box and the right side of the sealing box. The outer wall of the sanding belt does not contact the inner wall of the cooling box or the sealing box.

[0014] According to the above technical solution, the support mechanism includes two slides. The outer wall of the slide is fixedly connected to the rear side of the fixed frame. A slide frame is slidably connected to the inner wall of the slide. A second spring is fixedly connected to the rear side of the outer wall of the slide frame. The other end of the second spring is fixedly connected to the outer wall of the right slide. A hinge rod is hinged to the inner wall of the left end of the slide frame through a torsion spring. The front and rear ends of the hinge rod extend through the slide frame to the front and rear sides of the slide frame. An extension arm is fixedly connected to the front end of the hinge rod. A support wheel is rotatably connected to the right side of the extension arm through a bearing.

[0015] According to the above technical solution, the support mechanism further includes a second electric telescopic rod, which is electrically connected to the control module and fixedly connected to the rear inner wall of the slide. A friction block is fixedly connected to one end of the second electric telescopic rod, and the outer wall of the friction block is slidably connected to the outer wall of the slide. The friction block is located on the right side of the hinge rod. A second magnet is also fixedly connected to the outer wall of the slide, and a first magnet is fixedly connected to the right side of the outer wall of the slide block. The first magnet is located to the left of the second magnet.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention grinds the workpiece by setting a rotatable sanding belt, and adjusts the tension of the sanding belt by using a liftable pressure wheel, thereby reducing grinding errors;

[0017] By incorporating a cooling box with channels inside, the airflow can carry away surface debris as the sanding belt passes through the channels. Furthermore, the airflow cools down as it passes through the middle of the channels, thereby reducing thermal deformation.

[0018] By setting up support wheels to support the sanding belt, the pressure deformation of the center of the sanding point can be reduced when the surface of the prosthesis with multiple ridges and sharp corners is sanded, thereby preventing the sanding of the workpiece from being too heavy on both sides due to the sanding belt being squeezed in the center and the two sides moving towards the center.

[0019] By incorporating a second magnet and a first magnet, the slide can attract the second magnet and the first magnet together when the slide is pushed to the left. After a single grinding cycle, the first magnet and the second magnet can be separated, and the second spring can quickly push the slide to the right, thereby shaking off the adhering material on the sanding belt surface and reducing grinding errors. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the tensioning mechanism structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the cooling mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the cooling box of the present invention;

[0026] Figure 6 This is a schematic diagram of the rear structure of the support mechanism of the present invention;

[0027] In the diagram: 1. Fixing frame; 2. Motor; 3. First gear; 4. Rotating rod; 5. Second gear; 6. Sanding belt; 7. Tensioning mechanism; 8. Cooling mechanism; 9. Support mechanism; 10. Control module; 701. First electric telescopic rod; 702. First fixed seat; 703. Pressure wheel; 704. Spring frame; 705. First spring; 706. Upper pull plate; 707. Slide rod; 708. Lower pull plate; 709. Tensioner; 710. The... 711 Fixed base; 801 Pressure bearing wheel; 802 Rear fixed plate; 803 Cooling box; 804 Sealing box; 805 Sealing door; 806 Filter screen; 807 Air duct; 808 Fan; 901 Slide seat; 902 Slide frame; 903 Second spring; 904 Hinge rod; 905 Extension arm; 906 Support wheel; 907 Second electric telescopic rod; 908 Friction block; 909 First magnet; 910 Second magnet. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-6The present invention provides a technical solution: a femoral prosthesis processing device, including a fixation frame 1, which has three rotating holes. The two rotating holes on the right side are vertically arranged. A motor 2 is fixedly connected to the rear side of the fixation frame 1. A first gear 3 is fixedly connected to the output end of the motor 2. A rotating rod 4 is rotatably connected to the inner wall of the rotating hole through a bearing. A second gear 5 is fixedly connected to the outer wall of the rear end of the rotating rod 4. The outer wall of the second gear 5 meshes with the outer wall of the first gear 3. A sanding belt 6 is sleeved on the front side of the outer wall of the three rotating rods 4. A tensioning mechanism 7 and a cooling mechanism 8 are provided on the front side of the fixation frame 1. A support mechanism 9 is provided on the right side of the fixation frame 1. A control module 10 is fixedly connected to the upper rear side of the fixation frame 1.

[0030] During the polishing process, after the Honjo is installed, the motor 2 can be started, and the motor 2 will drive the rotating rod 4 to rotate through the transmission of the first gear 3 and the second gear 5. In turn, the rotating rod 4 will drive the sanding belt 6 to rotate, and the femoral prosthesis will be held by the robotic arm and moved to the right side of the sanding belt 6 for polishing.

[0031] The tensioning mechanism 7 includes a fixing component and structures such as a liftable pressure wheel 703 and a bearing wheel 711 on the fixing component. The pressure wheel 703 can adjust the tension of the sanding belt 6 by its own lifting displacement. The fixing component includes a first electric telescopic rod 701, the outer wall of which is fixedly connected to the lower front part of the fixing frame 1. The upper end of the first electric telescopic rod 701 is fixedly connected to a first fixing seat 702. The rear side of the first fixing seat 702 is rotatably connected to the pressure wheel 703 through a bearing. The lower side of the outer wall of the pressure wheel 703 contacts the outer wall of the inner ring of the sanding belt 6. The fixing component also includes a spring frame 704, the lower end of which is fixedly connected to the upper front part of the fixing frame 1. The lower side of the spring frame 704 is fixedly connected to a first spring 705, and the lower end of the first spring 705 is fixedly connected to an upper pull plate 706. A sliding rod 707 is slidably connected to the upper front side of the 1. A pull-down plate 708 is fixedly connected to the upper end of the sliding rod 707. A groove is opened on the upper side of the pull-down plate 708. A tensioner 709 is fixedly connected to the lower side of the inner wall of the groove. The upper surface of the tensioner 709 is fixedly connected to the lower end of the upper pull plate 706. A second fixed seat 710 is fixedly connected to the front side of the sliding rod 707. A bearing wheel 711 is rotatably connected to the lower rear side of the second fixed seat 710 through a bearing. The upper side of the bearing wheel 711 contacts the outer wall of the inner ring of the sanding belt 6. The tensioner 709 is electrically connected to the control module 10. The first electric telescopic rod 701 is electrically connected to the control module 10. The sanding belt 6 can pull the bearing wheel 711 to move up and down. When the tensioner 709 bears a tension exceeding a preset threshold, the first electric telescopic rod 701 can be activated by the control module 10 to perform telescopic operation.

[0032] During the polishing process, the sanding belt 6 undergoes intense friction with the skeleton body, causing it to heat up and deform. At this time, the downward pressure on the upper side of the pressure roller 711 decreases, which causes the tensioner 709 to detect a decrease in the tension between the pull plate 708 and the upper pull plate 706. When the tension exceeds the preset threshold, the control module 10 controls the first electric telescopic rod 701 to extend and retract. When the sanding belt 6 becomes loose, the lower side of the sanding belt 6 is pulled down by extending and retracting the first electric telescopic rod 701, which drives the first fixed seat 702 and the pressure roller 703 to move down. This tightens the sanding belt 6, causing it to pull the pressure roller 711 down, and thus the tension between the pull plate 708 and the upper pull plate 706 returns to within the preset threshold. This ensures the tightness of the right side of the sanding belt 6, maintains the friction between the sanding belt 6 and the prosthesis, and avoids polishing errors caused by the deformation of the sanding belt 6.

[0033] The cooling mechanism 8 includes a flow guiding component and a cooling box 802. A channel is provided on the upper rear side of the cooling box 802, with the inner wall of the channel having a height difference between the sides and a lower middle section. The flow guiding component includes a rear fixing plate 801, the rear side of which is fixedly connected to the outer wall of the fixing frame 1. The rear side of the cooling box 802 is fixedly connected to the front side of the rear fixing plate 801. A channel is provided on the upper rear side of the cooling box 802, and an exhaust duct is provided on the lower rear side of the cooling box 802. A sealing box 803 is fixedly connected to the right side of the cooling box 802, with the rear side of the sealing box 803 fixedly connected to the front side of the rear fixing plate 801. The interior of the sealing box 803 has a hollow structure, and the left side of the sealing box 803 is connected to both the channel and the exhaust duct on the cooling box 802. An opening is provided on the right side of the cooling box 802. A drain outlet is provided on the lower side of the exhaust channel inside the cooling box 802. A sealing door 804 is hinged to the inner wall of the drain outlet. A filter screen 805 is fixedly connected to the left side of the inner wall of the exhaust channel. A duct 806 is fixedly connected to the left end of the inner wall of the exhaust channel. The other end of the duct 806 extends through the fixing frame 1 to the rear side of the fixing frame 1. A fan 807 is fixedly connected to the rear side of the fixing frame 1. The rear end of the duct 806 is fixedly connected to the input end of the fan 807. The interior of the exhaust channel is connected to the input end of the fan 807 through the duct 806. The upper part of the sanding belt 6 is located inside the channel inside the cooling box 802. The sanding belt 6 passes through the left side of the cooling box 802 and the right side of the sealing box 803. The outer wall of the sanding belt 6 does not contact the inner wall of the cooling box 802 or the sealing box 803.

[0034] During the movement of the sanding belt 6, it quickly shuttles through the channel inside the cooling box 802, causing the airflow on the surface of the sanding belt 6 to rush into the channel from the left side of the cooling box 802. Then, the airflow is compressed at the narrower part in the middle of the channel. When the airflow passes through the right side of the channel, the internal space of the channel increases instantaneously, causing the gas to diffuse outward instantly. This causes the rapidly diffusing airflow to carry away the metal debris adhering to the surface of the sanding belt 6. Furthermore, when the airflow passes through the narrower part in the middle of the channel, the airflow temperature decreases, which in turn lowers the surface temperature of the sanding belt 6. The airflow carrying metal debris is drawn into the exhaust duct by the fan 807 through the air duct 806. Since there is an opening on the right side of the sealing box 803, some airflow will enter the interior of the sealing box 803 from the right side due to the suction force of the fan 807 and blow onto the surface of the sanding belt 6, further cleaning and cooling the surface of the sanding belt 6. Subsequently, the metal debris is filtered by the filter screen 805 and left inside the lower side of the cooling box 802. After use, if it is necessary to clean the metal debris, the sealing door 804 can be opened for cleaning.

[0035] The support mechanism 9 includes two slides 901. The outer wall of the slide 901 is fixedly connected to the rear side of the fixed frame 1. The inner wall of the slide 901 is slidably connected to a slide 902. The rear side of the outer wall of the slide 902 is fixedly connected to a second spring 903. The other end of the second spring 903 is fixedly connected to the outer wall of the right slide 901. The inner wall of the left end of the slide 902 is hinged to a hinge rod 904 by a torsion spring. The front and rear ends of the hinge rod 904 extend through the slide 902 to the front and rear sides of the slide 902. The front end of the hinge rod 904 is fixedly connected to an extension arm 905. The right side of the extension arm 905 is rotatably connected to a support wheel 906 by a bearing.

[0036] During use, the slide 902, supported by the second spring 903, supports the hinge rod 904 to the right left side of the sanding belt 6. Under the support of the hinge rod 904, the extension arm 905 contacts the outer wall of the support wheel 906 with the outer wall of the sanding belt 6. This allows the upper and lower sides of the right side of the sanding point of the sanding belt 6 to be supported by the support wheel 906. Consequently, the deformation of the middle part of the sanding point due to pressure is reduced by the support of the two support wheels 906, thereby reducing the amount of indentation at the contact point between the sanding belt and the prosthesis, and thus reducing sanding errors.

[0037] The support mechanism 9 also includes a second electric telescopic rod 907, which is electrically connected to the control module 10. The second electric telescopic rod 907 is fixedly connected to the rear inner wall of the slide 902. A friction block 908 is fixedly connected to one end of the second electric telescopic rod 907. The outer wall of the friction block 908 is slidably connected to the outer wall of the slide 902. The friction block 908 is located to the right of the hinge rod 904. A second magnet 910 is also fixedly connected to the outer wall of the slide 902. A first magnet 909 is fixedly connected to the right side of the outer wall of the slide 901. The first magnet 909 is located to the left of the second magnet 910.

[0038] When the support rollers 906 support the grinding point, when the workpiece presses against the abrasive belt 6 to the left, the two support rollers 906 expand upward and downward. Simultaneously, the expansion of the support rollers 906 causes the extension arm 905 and hinge rod 904 to deflect, and the slide 902 is pushed to the left, causing the second magnet 910 to contact the first magnet 909. The second spring 903 is compressed and deformed to store energy. During the workpiece's movement to the right after a single grinding cycle, the pressure on the support rollers 906 gradually decreases. When the pressure on the support rollers 906 decreases, the elastic force of the second spring 903 is greater than that of the second... The force of attraction between magnet 910 and first magnet 909 will cause second magnet 910 to separate from first magnet 909 instantly, causing slide 902 to move quickly to the right, thereby pushing support wheel 906 to quickly impact the surface of sanding belt 6, thus removing the adhering substances on the surface of sanding belt 6. In use, depending on the material of sanding belt 6, the second electric telescopic rod 907 can be activated to push friction block 908 to contact the rear end of hinge rod 904, thereby adjusting the friction between friction block 908 and the outer wall of hinge rod 904, thereby controlling the force required for deflection of support wheel 906, and controlling the deformation of sanding belt 6 when in contact with workpiece.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A femoral prosthesis processing device, comprising a fixation frame (1), wherein the fixation frame (1) has three rotating holes, the two rotating holes on the right side being vertically arranged, a motor (2) is fixedly connected to the rear side of the fixation frame (1), a first gear (3) is fixedly connected to the output end of the motor (2), a rotating rod (4) is rotatably connected to the inner wall of the rotating hole via a bearing, a second gear (5) is fixedly connected to the outer wall of the rear end of the rotating rod (4), the outer wall of the second gear (5) meshes with the outer wall of the first gear (3), and an abrasive belt (6) is sleeved on the front side of the outer wall of the three rotating rods (4), characterized in that: The front side of the fixed frame (1) is provided with a tensioning mechanism (7) and a cooling mechanism (8), the right side of the fixed frame (1) is provided with a support mechanism (9), and the upper rear side of the fixed frame (1) is fixedly connected with a control module (10). The tensioning mechanism (7) includes a fixed component and a lifting and lowering pressure wheel (703) and bearing wheel (711) structure on the fixed component. The pressure wheel (703) can adjust the tension of the sand belt (6) by its own lifting displacement. The cooling mechanism (8) includes a flow guiding component and a cooling box (802). A channel is provided on the upper rear part of the cooling box (802), and the inner wall of the channel has a structure that is high on both sides and low in the middle. The fixing assembly includes a first electric telescopic rod (701), the outer wall of which is fixedly connected to the lower front part of the fixing frame (1), and a first fixing seat (702) fixedly connected to the upper end of the first electric telescopic rod (701). A pressure wheel (703) is rotatably connected to the rear side of the first fixing seat (702) via a bearing. The lower side of the outer wall of the pressure wheel (703) contacts the outer wall of the inner ring of the sanding belt (6). The fixing assembly also includes a spring frame (704), the lower end of which is fixedly connected to the upper front part of the fixing frame (1). A first spring (705) is fixedly connected to the lower side of the spring frame (704). The lower end of the 05) is fixedly connected to an upper pull plate (706), and the upper front side of the fixed frame (1) is slidably connected to a slide rod (707). The upper end of the slide rod (707) is fixedly connected to a lower pull plate (708). The upper side of the lower pull plate (708) is provided with a sliding groove. The lower side of the inner wall of the sliding groove is fixedly connected to a tensioner (709). The upper surface of the tensioner (709) is fixedly connected to the lower end of the upper pull plate (706). The front side of the slide rod (707) is fixedly connected to a second fixed seat (710). The lower rear side of the second fixed seat (710) is rotatably connected to a bearing wheel (711) through a bearing. The upper side of the bearing wheel (711) is in contact with the outer wall of the inner ring of the sand belt (6).

2. The femoral prosthesis processing equipment according to claim 1, characterized in that: The tensioner (709) is electrically connected to the control module (10), the first electric telescopic rod (701) is electrically connected to the control module (10), the sand belt (6) can pull the pressure wheel (711) to move up and down, and when the tensioner (709) bears a tension exceeding a preset threshold, the first electric telescopic rod (701) can be activated by the control module (10) to perform telescopic operation.

3. The femoral prosthesis processing equipment according to claim 2, characterized in that: The flow guiding assembly includes a rear fixing plate (801), the rear side of which is fixedly connected to the outer wall of the fixing frame (1). The rear side of the cooling box (802) is fixedly connected to the front side of the rear fixing plate (801). A channel is provided on the upper rear side of the cooling box (802), and an exhaust channel is provided on the lower rear side of the cooling box (802). A sealing box (803) is fixedly connected to the right side of the cooling box (802). The rear side of the sealing box (803) is fixedly connected to the front side of the rear fixing plate (801). The interior of the sealing box (803) is a hollow structure, and the left side of the sealing box (803) is connected to the channel and the exhaust channel on the cooling box (802) respectively. The sealing box (803) has an opening on the right side, and the cooling box (802) has a drain port on the lower side of the internal exhaust channel. The drain port is hinged with a door (804). A filter screen (805) is fixedly connected to the left side of the inner wall of the exhaust channel. A duct (806) is fixedly connected to the left end of the inner wall of the exhaust channel. The other end of the duct (806) extends through the fixing frame (1) to the rear side of the fixing frame (1). A fan (807) is fixedly connected to the rear side of the fixing frame (1). The rear end of the duct (806) is fixedly connected to the input end of the fan (807). The interior of the exhaust channel is connected to the input end of the fan (807) through the duct (806).

4. The femoral prosthesis processing equipment according to claim 3, characterized in that: The upper part of the sanding belt (6) is located inside the channel inside the cooling box (802), and the sanding belt (6) passes through the left side of the cooling box (802) and the right side of the sealing box (803). The outer wall of the sanding belt (6) does not contact the inner wall of the cooling box (802) and the sealing box (803).

5. The femoral prosthesis processing equipment according to claim 4, characterized in that: The support mechanism (9) includes two slides (901). The outer wall of the slide (901) is fixedly connected to the rear side of the fixed frame (1). The inner wall of the slide (901) is slidably connected to a slide frame (902). The rear side of the outer wall of the slide frame (902) is fixedly connected to a second spring (903). The other end of the second spring (903) is fixedly connected to the outer wall of the right slide (901). The inner wall of the left end of the slide frame (902) is hinged to a hinge rod (904) by a torsion spring. The front and rear ends of the hinge rod (904) extend through the slide frame (902) to the front and rear sides of the slide frame (902). The front end of the hinge rod (904) is fixedly connected to an extension arm (905). The right side of the extension arm (905) is rotatably connected to a support wheel (906) by a bearing.

6. The femoral prosthesis processing equipment according to claim 5, characterized in that: The support mechanism (9) further includes a second electric telescopic rod (907), which is electrically connected to the control module (10). The second electric telescopic rod (907) is fixedly connected to the rear inner wall of the slide (902). One end of the second electric telescopic rod (907) is fixedly connected to a friction block (908). The outer wall of the friction block (908) is slidably connected to the outer wall of the slide (902). The friction block (908) is located on the right side of the hinge rod (904). The outer wall of the slide (902) is also fixedly connected to a second magnet (910). The right side of the outer wall of the slide (901) is fixedly connected to a first magnet (909). The first magnet (909) is located on the left side of the second magnet (910).

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