CN114367909A

CN114367909A - Grinding and polishing system of medical artificial limb

Info

Publication number: CN114367909A
Application number: CN202210282012.2A
Authority: CN
Inventors: 张妙媛; 周琳; 刘劲松; 何英; 陈爱灵; 彭敏; 龙承萍
Original assignee: Second Xiangya Hospital of Central South University
Current assignee: Second Xiangya Hospital of Central South University
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-04-19
Anticipated expiration: 2042-03-22
Also published as: CN114367909B

Abstract

The invention discloses a grinding and polishing system of a medical artificial limb, which is characterized in that the bottom end of the artificial limb is arranged in a clamping groove when in use, and the artificial limb is clamped and fixed by a clamping part, namely the clamping part is vertically arranged when in grinding and polishing; the first driving part drives the lifting ring to descend to sleeve the artificial limb, then the second driving part is started to drive the rotating ring to rotate, so that the polishing block is driven to rotate, the artificial limb positioned in the middle of the rotating ring is circumferentially polished by the rotating polishing block, and the polishing block can circumferentially polish and polish the artificial limb from top to bottom by matching with the first driving part.

Description

Grinding and polishing system of medical artificial limb

Technical Field

The invention relates to the technical field of grinding and polishing, in particular to a grinding and polishing system for a medical artificial limb.

Background

Sanding, which is one of the surface modification techniques, refers to a process of changing the physical properties of the surface of a material by friction with the aid of a rough object (e.g., sandpaper containing particles of relatively high hardness), the main purpose being to obtain a specific surface roughness.

The polishing is that the surface of a polishing piece is pressed on the abrasive belt with proper pressure on the abrasive belt moving at high speed, certain convex parts of the surface of the polishing piece are cut off under the action of moving friction force, meanwhile, the surface of the polishing piece also generates plastic deformation, and the convex parts are pressed in or filled in the concave parts after moving for a certain distance. The leveling process of cutting convex filling concave is repeated in large scale at high speed, and the polishing effect of polishing paste is added to make the original relatively rough surface of polishing member become smooth and bright.

In the process of grinding and polishing the medical artificial limb, the position of the artificial limb needs to be fixed, and then the rotary polishing head is contacted with the outer surface of the artificial limb to realize grinding and polishing; and each position of the artificial limb needs to be ground and polished, so that the position of the artificial limb needs to be changed for many times, and the working efficiency is greatly reduced.

Disclosure of Invention

The invention mainly aims to provide a grinding and polishing system for a medical artificial limb, and aims to solve the problem that the position of the artificial limb needs to be changed for many times when the artificial limb is ground and polished at present, and the working efficiency is greatly reduced.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a grinding and polishing system of a medical artificial limb comprises a base, a supporting seat, a clamping part, a vertical arm and a grinding assembly; the supporting seat is arranged on the upper surface of the base; the upper surface of the supporting seat is provided with a clamping groove; the clamping groove is provided with the clamping component; the clamping component is used for clamping and fixing the bottom end of the artificial limb;

the vertical arm is vertically arranged on the base; the polishing assembly comprises a lifting ring, a rotating ring, a first driving part, a second driving part, a polishing block and a polishing sheet; the lifting ring is vertically and movably connected to the vertical arm; the central axis of the lifting ring is vertically arranged; the rotating ring is rotatably embedded in the lifting ring; the rotating ring, the lifting ring and the clamping groove share a common central axis; the polishing block is connected to the inner wall of the rotating ring; the polishing piece is arranged on one side of the polishing block, which faces the center of the rotating ring; the first driving part is used for driving the lifting ring to vertically lift; the second driving component is used for driving the rotating ring to rotate relative to the lifting ring.

Preferably, the clamping component comprises a first hydraulic cylinder, a second hydraulic cylinder, a first clamping head and a second clamping head; the first hydraulic cylinder and the second hydraulic cylinder are horizontally embedded in the supporting seat, and the telescopic end of the first hydraulic cylinder and the telescopic end of the second hydraulic cylinder can extend into the clamping groove; the first clamping head is arranged at the telescopic end of the first hydraulic cylinder, and the second clamping head is arranged at the telescopic end of the second hydraulic cylinder; the first and second gripping heads are diametrically opposed to each other; the first clamping head and the second clamping head are used for clamping the bottom end of the fixed clamp.

Preferably, the device further comprises a first supporting arm and a second supporting arm; the first driving part comprises a linear sliding table module, a first sliding block and a second sliding block; the first support arm and the second support arm are both vertically connected to the vertical arm and are parallel to each other; the first support arm is provided with a first slide rail which extends vertically; the second supporting arm is provided with a second sliding rail which extends vertically; the first sliding block and the second sliding block are respectively arranged on two sides of the outer wall of the lifting ring; the first sliding block is sleeved on the first sliding rail in a sliding fit manner; the second sliding block is sleeved on the second sliding rail in a sliding fit manner; the linear sliding table module is vertically arranged on the vertical arm; the slip table of sharp slip table module connect in the outer wall of lift ring.

Preferably, the structure that the rotating ring is rotatably embedded in the lifting ring is as follows: the outer wall of the rotating ring is provided with a first annular groove and a second annular groove; the inner wall of the lifting ring is provided with a third annular groove and a fourth annular groove; said first and third annular grooves are diametrically opposed to each other, and said second and fourth annular grooves are diametrically opposed to each other; steel balls are embedded between the first annular groove and the third annular groove in a matched rolling manner; and steel balls are embedded between the second annular groove and the fourth annular groove in a matched rolling manner.

Preferably, the second driving part comprises a first external gear ring, a first gear, a rotating shaft and a first motor; the first outer gear ring is coaxially sleeved on the outer wall of the rotating ring, and the first outer gear ring is positioned between the first annular groove and the second annular groove; the inner wall of the lifting ring is provided with a cavity groove; the first gear is coaxially fixed on the rotating shaft; the rotating shaft is rotatably arranged in the lifting ring in a penetrating way and is vertically arranged; the first gear is positioned in the cavity groove, and the first gear partially extends out of the cavity groove and is meshed with the first outer gear ring; one end of the rotating shaft extends out of the lower surface of the lifting ring; the first motor is arranged on the lower surface of the lifting ring and is in driving connection with the rotating shaft.

Preferably, the grinding assembly further comprises a rotating sleeve, a movable cylinder, a limiting rod and a third driving part; the rotating sleeve is rotatably connected to the inner wall of the rotating ring through a bearing, and the central axis of the rotating sleeve is horizontally arranged; the inner wall of the rotating sleeve is provided with an internal thread, and the outer wall of the movable cylinder is provided with an external thread matched with the internal thread; the movable cylinder is matched and screwed in the rotating sleeve;

the movable cylinder comprises a first end and a second end which are arranged oppositely, and the second end is closer to the center of the rotating ring than the first end; the movable cylinder is provided with a limiting groove extending along the central axis direction of the body, and the vertical section of the limiting groove is rectangular; the limiting groove penetrates through the first end; the limiting rod is fixed on the inner wall of the rotating ring and is positioned in the rotating sleeve; the limiting rod is matched with the limiting groove and is embedded in the limiting groove in a sliding manner; the vertical section of the limiting rod is rectangular; the grinding block is arranged at the second end; the third driving part is used for driving the rotary sleeve to rotate.

Preferably, the third drive component comprises a second external gear ring, a second gear and a second motor; the second outer gear ring is coaxially sleeved on the outer wall of the rotating sleeve; the second motor is arranged on the inner wall of the rotating ring, and the second gear is coaxially connected with the second motor; the second gear is meshed with the second external gear ring.

Preferably, a limiting rope is connected between the inner groove bottom of the limiting groove and the limiting rod; the length of the limiting rope is smaller than that of the limiting groove along the central axis direction of the movable cylinder; the length of the limiting rod is smaller than that of the rotary sleeve; the length of the limiting groove in the direction of the central axis of the movable cylinder is greater than that of the rotary sleeve.

Preferably, the grinding assembly further comprises a connecting plate, a connecting rod, a movable block, a baffle and a first spring; the connecting plate is connected to the second end; the connecting rod is horizontally connected to one side of the connecting plate, which is far away from the second end; the movable block is provided with a movable groove which vertically penetrates through the body; the movable block comprises a first cavity plate and a second cavity plate which are opposite to each other, and the second cavity plate is closer to the center of the rotating ring than the first cavity plate; the connecting rod penetrates through the first cavity plate in a sliding mode; one end of the connecting rod, which is far away from the connecting plate, is connected with the baffle; the baffle is positioned in the movable groove; the first spring is sleeved on the connecting rod, one end of the first spring is connected to the connecting plate, and the other end of the first spring is connected to the first cavity plate; the first spring is in a compressed state, and the elastic force of the first spring enables the baffle plate to have a tendency of abutting against the first cavity plate; the grinding block is connected to one side of the second cavity plate, which is far away from the first cavity plate.

Preferably, the grinding assembly further comprises a bearing block, a connecting column, a universal ball head, a second spring and a third spring; the bearing block is connected to the center of one side of the polishing block, which is far away from the polishing sheet; one end of the connecting column is connected to one side of the second cavity plate, which is far away from the first cavity plate; the other end of the connecting column is connected with the universal ball head; one side of the bearing block, which is far away from the grinding block, is provided with a spherical inner groove; the universal ball head is movably embedded in the spherical inner groove in a matching manner; one end of the second spring is connected to one side of the second cavity plate, which is far away from the first cavity plate; the other end of the second spring is connected with the grinding block; one end of the third spring is connected to one side of the second cavity plate, which is far away from the first cavity plate; the other end of the third spring is connected with the grinding block; the second spring and the third spring are symmetrical with the connecting column; the second spring and the third spring are both in a stretched state.

Compared with the prior art, the invention at least has the following beneficial effects:

when the grinding and polishing system for the medical artificial limb is used, the bottom end of the artificial limb is placed in the clamping groove, and the artificial limb is clamped and fixed through the clamping part, namely the clamping part is vertically arranged during grinding and polishing; the first driving part drives the lifting ring to descend to sleeve the artificial limb, then the second driving part is started to drive the rotating ring to rotate, so that the polishing block is driven to rotate, the artificial limb positioned in the middle of the rotating ring is circumferentially polished by the rotating polishing block, and the polishing block can circumferentially polish and polish the artificial limb from top to bottom by matching with the first driving part.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a grinding and polishing system for a medical prosthesis according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is another structural diagram of FIG. 3;

FIG. 5 is an enlarged view of the structure at C in FIG. 1;

FIG. 6 is an enlarged view of a portion of the structure of FIG. 5;

FIG. 7 is a schematic top view of a portion of an embodiment of a polishing system for a medical prosthesis according to the present invention;

fig. 8 is a schematic cross-sectional view of a partial structure of an embodiment of a sanding and polishing system for a medical prosthesis according to the present invention.

Description of reference numerals:

110. a base; 120. a supporting seat; 130. a vertical arm; 140. a first support arm; 150. a second support arm; 160. a first slide rail; 170. a second slide rail; 180. a first slider; 190. a second slider; 210. a cross arm; 220. a third hydraulic cylinder; 230. a carrier plate; 240. a fourth hydraulic cylinder; 250. a movable arm; 260. a support pillar; 270. a rotating arm; 280. a third motor; 290. polishing head; 310. a butting rod; 320. a butting head; 330. a linear sliding table module; 340. a fifth hydraulic cylinder; 350. a sixth hydraulic cylinder; 360. a first hydraulic cylinder; 370. a second hydraulic cylinder; 380. a first gripping head; 390. a second gripping head; 410. a clamping groove; 420. a lifting ring; 430. a rotating ring; 440. an annular disc; 450. a first annular groove; 460. a second annular groove; 470. a third annular groove; 480. a fourth annular groove; 490. a first outer ring gear; 510. a cavity groove; 520. a first gear; 530. a rotating shaft; 540. a first motor; 550. a bearing seat; 560. a bearing; 570. a second outer gear ring; 580. rotating the sleeve; 590. a second gear; 610. a second motor; 620. a movable barrel; 630. a connecting plate; 640. a connecting rod; 650. a first spring; 660. a movable block; 670. a movable groove; 680. a first cavity plate; 690. a second cavity plate; 710. a baffle plate; 720. connecting columns; 730. a universal ball head; 740. a bearing block; 750. grinding blocks; 760. grinding the sheets; 770. a second spring; 780. a third spring; 790. a fourth spring; 810. an oil pump; 820. an oil liquid chamber; 830. a through hole; 840. a movable cavity; 850. a piston head; 860. a travel bar; 870. a movable rod; 880. a first clamp arm; 890. a second clamp arm; 910. a clamping member; 920. a first end; 930. a second end; 940. a limiting rod; 950. a limiting groove; 960. a fifth spring; 970. and a limiting rope.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a grinding and polishing system for a medical artificial limb.

Referring to fig. 1 to 8, in an embodiment of the present invention, the grinding and polishing system for a medical prosthesis comprises a base 110, a supporting base 120, a clamping member, a vertical arm 130 and a grinding assembly; the supporting base 120 is disposed on the upper surface of the base 110; the upper surface of the support base 120 is provided with a clamping groove 410, the clamping groove 410 is a circular groove, and the upper part of the clamping groove 410 is open; the grip groove 410 is provided with a grip member; the clamping component is used for clamping and fixing the bottom end of the artificial limb.

The vertical arm 130 is vertically disposed on the base 110; the grinding assembly comprises a lifting ring 420, a rotating ring 430, a first driving part, a second driving part, a grinding block 750 and a grinding sheet 760; the lifting ring 420 is vertically movably connected to the vertical arm 130; the central axis of the lifting ring 420 is arranged vertically; the rotating ring 430 is rotatably embedded in the lifting ring 420; the rotating ring 430, the lifting ring 420 and the clamping groove 410 share a central axis; the sanding block 750 is connected to the inner wall of the rotating ring 430; the polishing sheet 760 is detachably provided to a side of the polishing block 750 facing the center of the rotating ring 430 (the polishing sheet 760 herein may be detached and replaced with a polishing sheet); the first driving part is used for driving the lifting ring 420 to vertically lift; the second driving part is used for driving the rotating ring 430 to rotate relative to the lifting ring 420.

When the grinding and polishing system for the medical artificial limb is used, the bottom end of the artificial limb is placed in the clamping groove 410, and the artificial limb is clamped and fixed through the clamping part, namely the clamping part is vertically arranged during grinding and polishing; then, the lifting ring 420 is driven to descend by the first driving part to sleeve the artificial limb, then the second driving part is started to drive the rotating ring 430 to rotate, so that the polishing block 750 is driven to rotate, the artificial limb positioned in the middle of the rotating ring 430 is circumferentially polished by the rotating polishing block 750, and then the polishing block 750 can circumferentially polish and polish the artificial limb from top to bottom by matching with the first driving part, namely, the polishing and polishing system of the medical artificial limb provided by the invention can polish and polish all positions of the artificial limb on the premise of not changing the position of the artificial limb, so that the working efficiency is greatly improved.

Further, as shown in fig. 2, the gripping member includes a first hydraulic cylinder 360, a second hydraulic cylinder 370, a first gripping head 380, and a second gripping head 390; the first hydraulic cylinder 360 and the second hydraulic cylinder 370 are horizontally embedded in the support base 120, and the telescopic end of the first hydraulic cylinder 360 and the telescopic end of the second hydraulic cylinder 370 can extend into the clamping groove 410; the first gripping head 380 is disposed at the telescopic end of the first hydraulic cylinder 360, and the second gripping head 390 is disposed at the telescopic end of the second hydraulic cylinder 370; the first and second

gripping heads

380 and 390 are diametrically opposed to each other; the first clamping head 380 and the second clamping head 390 are used to clamp the bottom end of the stationary clamp. The first clamping head 380 and the second clamping head 390 are both arc-shaped, so that the workpiece to be ground can be clamped and fixed conveniently.

Meanwhile, the grinding and polishing system of the medical prosthesis further comprises a first support arm 140 and a second support arm 150; the first driving part comprises a linear sliding table module 330, a first sliding block 180 and a second sliding block 190; the first and

second support arms

140 and 150 are vertically connected to the vertical arm 130 and are parallel to each other; the first support arm 140 is provided with a first slide rail 160 extending vertically; the second support arm 150 is provided with a second slide rail 170 extending vertically; the first slider 180 and the second slider 190 are respectively arranged at two sides of the outer wall of the lifting ring 420; the first sliding block 180 is slidably fitted and sleeved on the first sliding rail 160; the second sliding block 190 is slidably fitted and sleeved on the second sliding rail 170; the linear sliding table module 330 is vertically arranged on the vertical arm 130; the slip table of the linear slip table module 330 is connected to the outer wall of the lifting ring 420. Through the technical scheme, the specific structure that the lifting ring 420 is vertically and movably connected to the vertical arm 130 is perfected.

In addition, the structure of the rotating ring 430 rotatably embedded in the lifting ring 420 is: the outer wall of the rotating ring 430 is provided with a first annular groove 450 and a second annular groove 460, and the first annular groove 450 is parallel to the second annular groove 460 and is horizontally arranged; a third annular groove 470 and a fourth annular groove 480 are formed in the inner wall of the lifting ring 420, and the third annular groove 470 is parallel to the fourth annular groove 480 and is horizontally arranged; the first annular groove 450 and the third annular groove 470 are diametrically opposed to each other, and the second annular groove 460 and the fourth annular groove 480 are diametrically opposed to each other; steel balls are embedded between the first annular groove 450 and the third annular groove 470 in a matched rolling manner; steel balls are embedded between the second annular groove 460 and the fourth annular groove 480 in a matched rolling manner.

Meanwhile, the second driving part includes a first outer ring gear 490, a first gear 520, a rotation shaft 530, and a first motor 540; the first outer gear ring 490 is coaxially sleeved on the outer wall of the rotating ring 430, and the first outer gear ring 490 is located between the first annular groove 450 and the second annular groove 460; the inner wall of the lifting ring 420 is provided with a cavity groove 510; the first gear 520 is coaxially fixed on the rotating shaft 530; the rotating shaft 530 is rotatably inserted through the lifting ring 420, and the rotating shaft 530 is vertically arranged; first gear 520 is positioned within cavity 510, and first gear 520 partially extends out of cavity 510 and meshes with first outer ring gear 490; one end of the rotation shaft 530 is extended out of the lower surface of the lifting ring 420; the first motor 540 is disposed on the lower surface of the lifting ring 420 and is drivingly connected to the rotating shaft 530. Through the technical scheme, the specific structure that the second driving part drives the rotating ring 430 to rotate is perfected.

In addition, the grinding assembly further comprises a rotating sleeve 580, a movable barrel 620, a limiting rod 940 and a third driving part; the rotary sleeve 580 is rotatably connected to the inner wall of the rotary ring 430 through a bearing 560, and the central axis of the rotary sleeve 580 is horizontally arranged; specifically, the bearing seat 550 is arranged on the inner wall of the rotating ring 430, the rotating sleeve 580 is rotatably connected to the bearing seat 550 through the bearing 560, and the central axis of the rotating sleeve 580 is horizontally arranged; the inner wall of the rotary sleeve 580 is provided with internal threads, and the outer wall of the movable barrel 620 is provided with external threads matched with the internal threads; the movable cylinder 620 is screwed in the rotary sleeve 580, and the movable cylinder 620 and the rotary sleeve 580 share a central axis.

The movable cylinder 620 includes a first end 920 and a second end 930 arranged oppositely, and the second end 930 is closer to the center of the rotation ring 430 than the first end 920; the movable cylinder 620 is provided with a limit groove 950 extending along the central axis direction of the body, and the vertical section of the limit groove 950 is rectangular; the limiting groove 950 penetrates through the first end 920; the limiting rod 940 is fixed on the inner wall of the rotating ring 430 (specifically, the limiting rod 940 is fixedly connected to the bearing seat 550), and the limiting rod 940 is located in the rotating sleeve 580; the limiting rod 940 is matched and slidably embedded in the limiting groove 950; the vertical section of the limiting rod 940 is rectangular, and the movable cylinder 620 can only horizontally move and cannot rotate by arranging the limiting groove 950 and the limiting rod 940; the sanding block 750 is disposed at the second end 930; the third driving member is used for driving the rotation of the rotation sleeve 580.

Through the technical scheme, the third driving part can drive the rotary sleeve 580 to rotate, so that the movable cylinder 620 is driven to horizontally move under the action of the internal thread and the external thread, and the horizontal position of the polishing block 750 is adjusted, so that the polishing machine is suitable for workpieces to be polished of different sizes.

Specifically, the third driving part includes a second external ring gear 570, a second gear 590 and a second motor 610; the second outer gear ring 570 is coaxially sleeved on the outer wall of the rotary sleeve 580; the second motor 610 is disposed on an inner wall of the rotating ring 430 (specifically, the second motor 610 is connected to the carrying seat 740), and the second gear 590 is coaxially connected to the second motor 610; the second gear 590 is engaged with the second external gear ring 570. That is, the second motor 610 drives the second gear 590 to rotate, and then drives the second external gear 570 to rotate, and then drives the rotating sleeve 580 to rotate.

In addition, a limit rope 970 (flexible steel cable) is connected between the inner groove bottom of the limit groove 950 and the limit rod 940; the length of the limit rope 970 is smaller than the length of the limit groove 950 along the central axis direction of the movable cylinder 620; the length of the limiting rod 940 is less than that of the rotary sleeve 580; the length of the limiting groove 950 along the central axis of the movable cylinder 620 is greater than that of the rotary sleeve 580. By the arrangement, the limiting rod 940 can be prevented from being separated from the limiting groove 950, so that the movable barrel 620 is prevented from being separated from the rotary sleeve 580, and the working stability of the whole system is ensured.

Meanwhile, as shown in fig. 5, 7 and 8, the sanding assembly further includes a connecting plate 630, a connecting rod 640, a movable block 660, a baffle 710 and a first spring 650; the connection plate 630 is connected to the second end 930; the connecting rod 640 is horizontally connected to a side of the connecting plate 630 facing away from the second end 930; the movable block 660 is provided with a movable groove 670 vertically penetrating through the body; the movable block 660 includes a first cavity plate 680 and a second cavity plate 690 opposite to each other, and the second cavity plate 690 is closer to the center of the rotation ring 430 than the first cavity plate 680; the connecting rod 640 is slidably inserted through the first cavity plate 680; one end of the connecting rod 640 far away from the connecting plate 630 is connected with a baffle 710; the baffle 710 is positioned in the movable groove 670; the first spring 650 is sleeved on the connecting rod 640, one end of the first spring 650 is connected to the connecting plate 630, and the other end of the first spring 650 is connected to the first cavity plate 680; the first spring 650 is in a compressed state, and the elastic force of the first spring 650 makes the baffle 710 have a tendency to abut against the first cavity plate 680; the sanding block 750 is attached to the side of the second cavity plate 690 facing away from the first cavity plate 680.

Through the technical scheme, the grinding block 750 can be elastically abutted against the outer surface of the workpiece to be ground under the action of the first spring 650, and is more suitable for grinding and polishing the artificial limb with irregular outer diameter so as to improve grinding and polishing effects.

In addition, the grinding assembly further comprises a bearing block 740, a connecting column 720, a universal ball head 730, a second spring 770, a third spring 780, a fourth spring 960 and a fifth spring; the carrier block 740 is attached to a central location of a side of the sanding block 750 facing away from the sanding sheet 760; one end of the connecting post 720 is connected to a side of the second cavity plate 690 facing away from the first cavity plate 680; the other end of the connecting column 720 is connected with a universal ball head 730; a spherical inner groove (not numbered) is formed in one side of the bearing block 740, which is far away from the polishing block 750; the universal ball head 730 is movably embedded in the spherical inner groove in a matching way; one end of the second spring 770 is connected to a side of the second cavity plate 690 facing away from the first cavity plate 680; the other end of the second spring 770 is connected to the sanding block 750; one end of the third spring 780 is connected to a side of the second cavity plate 690 facing away from the first cavity plate 680; the other end of the third spring 780 is connected to the sanding block 750; the second spring 770 and the third spring 780 are symmetrical about the connection post 720; the second spring 770 and the third spring 780 are both in tension; one end of the fourth spring 790 is connected to a side of the second cavity plate 690 facing away from the first cavity plate 680; the other end of the fourth spring 790 is connected to a sanding block 750; one end of the fifth spring 960 is connected to a side of the second plate 690 facing away from the first plate 680; the other end of the fifth spring 960 is connected to the sanding block 750; the fourth spring 790 and the fifth spring 960 are symmetrical with the connection post 720; the fourth spring 790 and the fifth spring 960 are both in tension; the second spring 770 and the third spring 780 are respectively located at both sides of the connection column 720 in the horizontal direction, the fourth spring 790 and the fifth spring 960 are respectively located at both sides of the connection column 720 in the vertical direction, and the fourth spring 790 is located above the fifth spring 960.

Through the above technical solution, the bearing block 740 can rotate in any direction, but in a normal state (i.e. when the polishing sheet 760 is not abutted to a workpiece to be polished), the second spring 770, the third spring 780, the fourth spring 790 and the fifth spring 960 have the same stretching degree and the same length, i.e. the polishing block 750 is in a vertical state; when the polishing sheet 760 abuts against a workpiece to be polished, under the action of the second spring 770, the third spring 780, the fourth spring 790, the fifth spring 960 and the universal ball head 730, the polishing sheet 760 can be adjusted in a certain angle according to the shape of the outer surface of the workpiece to be polished, so that the polishing sheet 760 is more attached to the workpiece to be polished, and polishing effects are improved.

Meanwhile, referring to fig. 1, fig. 3 and fig. 4, the grinding and polishing system of the medical prosthesis further includes a cross arm 210, a third hydraulic cylinder 220, a carrier plate 230, a movable arm 250, a support column 260, a rotating arm 270, a fourth hydraulic cylinder 240, a fifth hydraulic cylinder 340, a sixth hydraulic cylinder 350, an abutment rod 310, an abutment head 320, a third motor 280 and a grinding head 290; the cross arm 210 is horizontally fixed on the vertical arm 130, and the cross arm 210 is positioned right above the supporting seat 120; the base 110 of the third hydraulic cylinder 220 is fixed to the lower surface of the cross arm 210; the telescopic end of the third hydraulic cylinder 220 is connected with a bearing plate 230; the third hydraulic cylinder 220 is used for driving the carrier plate 230 to vertically lift; the carrier plate 230 is horizontally arranged, and the movable arm 250 is horizontally and slidably connected to the lower surface of the carrier plate 230; the base 110 of the fourth hydraulic cylinder 240 is fixed to the lower surface of the carrier plate 230; the telescopic end of the fourth hydraulic cylinder 240 is connected to the movable arm 250 for driving the movable arm 250 to move horizontally; the support column 260 is vertically connected to the lower side of the movable arm 250; the rotating arm 270 is hinged to the bottom end of the supporting column 260; the rotation plane of the rotation arm 270 is a vertical plane, and the rotation plane of the rotation arm 270 is parallel to the vertical arm 130.

The middle outer wall of the rotating arm 270 is connected with a butting rod 310, and the butting rod 310 is perpendicular to the rotating arm 270; one end of the abutting rod 310 far away from the rotating arm 270 is provided with an abutting head 320; one end of the rotating arm 270, which is far away from the supporting column 260, is connected with a third motor 280, an output shaft of the third motor 280 is detachably connected with a polishing head 290, and an output shaft of the third motor 280 is perpendicular to the abutting rod 310; the base 110 of the fifth hydraulic cylinder 340 is hinged to the supporting column 260, and the telescopic end of the fifth hydraulic cylinder 340 is hinged to the middle of the rotating arm 270; the base 110 of the sixth hydraulic cylinder 350 is hinged to the lower side of the movable arm 250, and the telescopic end of the sixth hydraulic cylinder 350 is hinged to the middle of the cylinder body of the fifth hydraulic cylinder 340.

Through above-mentioned technical scheme, firstly can treat the top of the work piece of polishing and carry out the butt to further guarantee to treat the stability of the work piece of polishing at the in-process of polishing, secondly can treat the top of the work piece of polishing through the head 290 of polishing and polish, filled the blind area of polishing of the subassembly of polishing.

During the specific use, through the cooperation of third pneumatic cylinder 220 and fourth pneumatic cylinder 240 to adjust carrier plate 230 to suitable position, then make rotor arm 270 keep the horizontality through the cooperation of fifth pneumatic cylinder 340 and sixth pneumatic cylinder 350, then restart third pneumatic cylinder 220, and then make the top that the butt head 320 butt pushed down the work piece of waiting to polish.

When the top end of the workpiece to be polished needs to be polished, the rotating arm 270 is adjusted to a proper position (for example, as shown in fig. 4) through the cooperation of the fifth hydraulic cylinder 340 and the sixth hydraulic cylinder 350, and then the third motor 280 is started, so that the polishing head 290 can be driven to polish and polish the top end of the workpiece to be polished (when polishing is needed, the polishing head 290 is replaced by a polishing sheet); in addition, in the polishing process, the fifth hydraulic cylinder 340 and the sixth hydraulic cylinder 350 can be started in real time to cooperate with each other to drive the rotating arm 270 to rotate back and forth, so that the working angle of the polishing head 290 is adjusted to polish the top end of the workpiece to be polished more comprehensively.

In addition, referring to fig. 1, 5 and 6, the grinding and polishing system of the medical prosthesis further comprises a fixing component; the stationary assembly includes an annular disc 440, an oil pump 810, a moving rod 860, a clamping member 910, a moving rod 870, and a piston head 850; the annular disc 440 is fixed on the upper side of the rotating ring 430, and the annular disc 440 and the rotating ring 430 are coaxial; the annular disc 440 is horizontally disposed, and the annular disc 440 is located above the upper surface of the lifting ring 420; the outer diameter of the annular disc 440 is larger than the inner diameter of the lifting ring 420; an oil liquid cavity 820, a through hole 830 and a movable cavity 840 are formed in the lifting ring 420; the oil cavity 820 and the through hole 830 share a central axis, and two ends of the through hole 830 are respectively communicated with the oil cavity 820 and the movable cavity 840; the central axis of the through hole 830 is horizontally arranged; the movable rod 860 is slidably arranged in the through hole 830; the travel bar 860 includes a third end (not numbered) and a fourth end (not numbered) opposite to each other; the third end is located in the oil chamber 820 and is connected with a piston head 850; the piston head 850 is embedded in the oil chamber 820 in a sliding fit manner; the fourth end is positioned in the movable cavity 840 and is connected with a movable rod 870; the movable rod 860 and the through hole 830 share a central axis, and the movable rod 870 is vertically arranged; the movable cavity 840 penetrates through the upper surface of the lifting ring 420; the movable rod 870 extends upwardly from the movable chamber 840 and is coupled to the clamp 910.

The movable rod 870 is located outside the annular disc 440; the clamp 910 includes a first clamp arm 880 and a second clamp arm 890 disposed opposite each other; the distance between the first clip arm 880 and the second clip arm 890 is gradually decreased inward for clipping the fixing ring-shaped disc 440; the first clamping arm 880 is positioned above the second clamping arm 890, the annular disc 440 can be embedded between the first clamping arm 880 and the second clamping arm 890, and the first clamping arm 880 and the second clamping arm 890 are symmetrically arranged with the annular disc 440; the inner walls of the first clamping arm 880 and the second clamping arm 890 are inclined and are provided with rubber layers (not shown) in an attaching manner; the oil pump 810 is disposed on the lifting ring 420; the output end of the oil pump 810 is communicated with the oil cavity 820 through an oil pipe; the oil pump 810 is used for outputting hydraulic oil to drive the piston head 850 to move along the oil chamber 820, so as to drive the movable rod 870 to translate, and further drive the clamping member to approach the annular disc 440, so that the first clamping arm 880 and the second clamping arm 890 clamp the annular disc 440, thereby fixing the rotating ring 430.

Through the technical scheme, the annular disc 440 can be emergently braked through the oil pump 810, and then the whole rotating ring 430 is emergently braked, so that the polishing is emergently stopped, the emergency in the production process is met, and the practicability of the system is improved.

Specifically, when the rotating ring 430 needs to be braked emergently, the oil pump 810 is started, hydraulic oil enters the oil liquid chamber 820, the piston head 850 is further pushed to move towards the direction close to the rotating ring 430, the moving rod 860 and the moving rod 870 are further driven to move, the clamping piece 910 is further driven to move towards the direction close to the annular disc 440, the first clamping arm 880 and the second clamping arm 890 clamp the outer edge of the annular disc 440, and the annular disc 440 is further fixed, so that the purpose of emergency braking is achieved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A grinding and polishing system of a medical artificial limb is characterized by comprising a base, a supporting seat, a clamping part, a vertical arm and a grinding assembly; the supporting seat is arranged on the upper surface of the base; the upper surface of the supporting seat is provided with a clamping groove; the clamping groove is provided with the clamping component; the clamping component is used for clamping and fixing the bottom end of the artificial limb;

2. A medical prosthesis buffing system according to claim 1, wherein the clamping member includes a first hydraulic cylinder, a second hydraulic cylinder, a first clamping head and a second clamping head; the first hydraulic cylinder and the second hydraulic cylinder are horizontally embedded in the supporting seat, and the telescopic end of the first hydraulic cylinder and the telescopic end of the second hydraulic cylinder can extend into the clamping groove; the first clamping head is arranged at the telescopic end of the first hydraulic cylinder, and the second clamping head is arranged at the telescopic end of the second hydraulic cylinder; the first and second gripping heads are diametrically opposed to each other; the first clamping head and the second clamping head are used for clamping the bottom end of the fixed clamp.

3. A medical prosthesis buffing system according to claim 1, further comprising a first support arm and a second support arm; the first driving part comprises a linear sliding table module, a first sliding block and a second sliding block; the first support arm and the second support arm are both vertically connected to the vertical arm and are parallel to each other; the first support arm is provided with a first slide rail which extends vertically; the second supporting arm is provided with a second sliding rail which extends vertically; the first sliding block and the second sliding block are respectively arranged on two sides of the outer wall of the lifting ring; the first sliding block is sleeved on the first sliding rail in a sliding fit manner; the second sliding block is sleeved on the second sliding rail in a sliding fit manner; the linear sliding table module is vertically arranged on the vertical arm; the slip table of sharp slip table module connect in the outer wall of lift ring.

4. A grinding and polishing system for a medical prosthesis according to claim 1, wherein the structure of the rotation ring rotatably embedded in the lifting ring is: the outer wall of the rotating ring is provided with a first annular groove and a second annular groove; the inner wall of the lifting ring is provided with a third annular groove and a fourth annular groove; said first and third annular grooves are diametrically opposed to each other, and said second and fourth annular grooves are diametrically opposed to each other; steel balls are embedded between the first annular groove and the third annular groove in a matched rolling manner; and steel balls are embedded between the second annular groove and the fourth annular groove in a matched rolling manner.

5. A medical prosthesis buffing system according to claim 4, wherein the second drive member includes a first external gear ring, a first gear, a shaft and a first motor; the first outer gear ring is coaxially sleeved on the outer wall of the rotating ring, and the first outer gear ring is positioned between the first annular groove and the second annular groove; the inner wall of the lifting ring is provided with a cavity groove; the first gear is coaxially fixed on the rotating shaft; the rotating shaft is rotatably arranged in the lifting ring in a penetrating way and is vertically arranged; the first gear is positioned in the cavity groove, and the first gear partially extends out of the cavity groove and is meshed with the first outer gear ring; one end of the rotating shaft extends out of the lower surface of the lifting ring; the first motor is arranged on the lower surface of the lifting ring and is in driving connection with the rotating shaft.

6. A medical prosthesis finishing system as claimed in claim 1, wherein said finishing assembly further comprises a swivel sleeve, a movable barrel, a stop rod and a third drive member; the rotating sleeve is rotatably connected to the inner wall of the rotating ring through a bearing, and the central axis of the rotating sleeve is horizontally arranged; the inner wall of the rotating sleeve is provided with an internal thread, and the outer wall of the movable cylinder is provided with an external thread matched with the internal thread; the movable cylinder is matched and screwed in the rotating sleeve;

7. A medical prosthesis buffing system according to claim 6, wherein the third drive member includes a second external gear ring, a second gear and a second motor; the second outer gear ring is coaxially sleeved on the outer wall of the rotating sleeve; the second motor is arranged on the inner wall of the rotating ring, and the second gear is coaxially connected with the second motor; the second gear is meshed with the second external gear ring.

8. A grinding and polishing system for a medical prosthesis according to claim 6, wherein a limiting rope is connected between the inner groove bottom of the limiting groove and the limiting rod; the length of the limiting rope is smaller than that of the limiting groove along the central axis direction of the movable cylinder; the length of the limiting rod is smaller than that of the rotary sleeve; the length of the limiting groove in the direction of the central axis of the movable cylinder is greater than that of the rotary sleeve.

9. A sanding polishing system for a medical prosthesis according to claim 6, wherein said sanding assembly further includes a connecting plate, a connecting rod, a movable block, a flap, and a first spring; the connecting plate is connected to the second end; the connecting rod is horizontally connected to one side of the connecting plate, which is far away from the second end; the movable block is provided with a movable groove which vertically penetrates through the body; the movable block comprises a first cavity plate and a second cavity plate which are opposite to each other, and the second cavity plate is closer to the center of the rotating ring than the first cavity plate; the connecting rod penetrates through the first cavity plate in a sliding mode; one end of the connecting rod, which is far away from the connecting plate, is connected with the baffle; the baffle is positioned in the movable groove; the first spring is sleeved on the connecting rod, one end of the first spring is connected to the connecting plate, and the other end of the first spring is connected to the first cavity plate; the first spring is in a compressed state, and the elastic force of the first spring enables the baffle plate to have a tendency of abutting against the first cavity plate; the grinding block is connected to one side of the second cavity plate, which is far away from the first cavity plate.

10. A medical prosthesis finishing system as claimed in claim 9, wherein said finishing assembly further comprises a carrier block, a connection post, a universal ball head, a second spring and a third spring; the bearing block is connected to the center of one side of the polishing block, which is far away from the polishing sheet; one end of the connecting column is connected to one side of the second cavity plate, which is far away from the first cavity plate; the other end of the connecting column is connected with the universal ball head; one side of the bearing block, which is far away from the grinding block, is provided with a spherical inner groove; the universal ball head is movably embedded in the spherical inner groove in a matching manner; one end of the second spring is connected to one side of the second cavity plate, which is far away from the first cavity plate; the other end of the second spring is connected with the grinding block; one end of the third spring is connected to one side of the second cavity plate, which is far away from the first cavity plate; the other end of the third spring is connected with the grinding block; the second spring and the third spring are symmetrical with the connecting column; the second spring and the third spring are both in a stretched state.