Inner wall grinding device for precision parts of medical apparatus and instruments
By combining the ultrasonic grinder with sliding blocks, sliding rods, sliding arc clamping blocks, and hydraulic rods, the problem of parts colliding with the grinding tank during the grinding process is solved, achieving automated clamping and stable conveying, thereby improving production efficiency and part yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-06
- Publication Date
- 2026-03-24
AI Technical Summary
Existing grinding devices for precision medical device components cause damage when the parts collide with the inner wall of the grinding tank during high-frequency vibration, affecting their use.
The design of the ultrasonic grinder, combined with sliding blocks, sliding rods, sliding arc clamping blocks, and hydraulic rods, enables automatic clamping and stable conveying of parts. The dual clamping mode and silicone pads prevent shaking and damage, and the combination of a power motor and gear system achieves a fully automated process.
This ensures that parts do not collide with the grinding tank during the grinding process, thereby improving production efficiency and yield, simplifying the equipment structure, reducing failure points, and meeting the consistency requirements of mass production.
Smart Images
Figure CN121715932A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical instrument polishing, in particular to an inner wall polishing device for precise parts of medical instruments. BACKGROUND
[0002] The inner wall polishing of precise parts of medical instruments directly relates to medical safety, and the traditional manual method cannot meet the requirements, so the development of automatic and intelligent special polishing devices is promoted. The current mainstream device is committed to realizing ultra-high precision and eliminating pollution, and the future trend will focus on process intelligent closed loop and digital flexible manufacturing to pursue surface quality, in order to match the extreme needs of the next generation of ultra-precision medical instruments.
[0003] The existing inner wall polishing device for precise parts of medical instruments, in the process of polishing the medical instrument parts, when the medical instrument parts are polished in the polishing pool, the medium in the polishing pool is driven to polish the medical instrument parts through high-frequency vibration. In the process of high-frequency vibration, the medical instrument parts are moved, so that the medical instrument parts collide with the inner wall of the polishing pool, which can damage the medical instrument parts and affect the subsequent use. SUMMARY
[0004] The purpose of the present application is to provide an inner wall polishing device for precise parts of medical instruments to solve the problem that the existing inner wall polishing device for precise parts of medical instruments, in the process of polishing the medical instrument parts, when the medical instrument parts are polished in the polishing pool, the medium in the polishing pool is driven to polish the medical instrument parts through high-frequency vibration. In the process of high-frequency vibration, the medical instrument parts are moved, so that the medical instrument parts collide with the inner wall of the polishing pool, which can damage the medical instrument parts and affect the subsequent use.
[0005] To achieve the above purpose, the present application provides the following technical scheme: an inner wall polishing device for precise parts of medical instruments, comprising an ultrasonic polisher, a polishing pool is arranged on the ultrasonic polisher, conveying belts are arranged on both sides of the ultrasonic polisher, a sliding block is slidably connected to the ultrasonic polisher, a sliding rod is slidably connected to the inside of the sliding block, a sliding column is fixedly connected to one side of the sliding rod, a fixed block is fixedly connected to the other end of the sliding rod, a pair of sliding arc clamping blocks are slidably connected to one side of the fixed block, a limiting sliding groove is formed in the inside of the fixed block, the sliding arc clamping blocks are slidably connected with the limiting sliding groove, a double-end hydraulic rod is fixedly connected between the two sliding arc clamping blocks, a fixed tube is formed in the inside of the fixed block, sealing rods are slidably connected to both ends of the fixed tube, the other ends of the two sealing rods are respectively fixedly connected with the two sliding arc clamping blocks; The device can automatically clamp the parts when polishing the parts, and can prevent the parts from colliding with the polishing pool when polishing the inner wall of the parts.
[0006] Further, the middle section of the fixed pipe is fixedly communicated with a conveying pipe for conveying hydraulic oil in the fixed pipe, and the other end of the conveying pipe is fixedly communicated with a pair of sliding pipes.
[0007] Further, the inside of each of the two sliding pipes is slidingly connected with a control slide rod, and the other end of the control slide rod is fixedly connected with a sliding rail, which is slidingly connected with the inside of the sliding arc clamp block.
[0008] Further, the sliding rail is slidingly connected with a sliding clamp block, which is located in the inside of the sliding arc clamp block.
[0009] Further, the inside of the sliding arc clamp block is provided with an inclined sliding groove, which is slidingly connected with the sliding clamp block and is used for guiding the sliding track of the sliding clamp block.
[0010] Further, the other end of the sliding block is fixedly connected with a fixed seat, the fixed seat is fixedly installed with a power motor, and the power output end of the power motor is fixedly connected with a gear.
[0011] Further, the ultrasonic polisher is fixedly installed with a rack, which is meshingly connected with the gear.
[0012] Further, the ultrasonic polisher is provided with a first straight sliding groove, a first inclined groove, a second straight sliding groove, a second inclined sliding groove and a third straight sliding groove, which are mutually communicated.
[0013] Further, the sliding column is slidingly connected with the first straight sliding groove, the first inclined groove, the second straight sliding groove, the second inclined sliding groove and the third straight sliding groove.
[0014] Compared with the known prior art, the technical scheme provided by the present application has the following beneficial effects: Firstly, the sliding arc clamp block is driven by the double-end hydraulic rod to preliminarily clamp the circular pipe part, when the preliminary clamping is performed, the sealing rod extrudes the hydraulic oil in the fixed pipe, the hydraulic oil enters the sliding pipe through the conveying pipe, pushes the control slide rod to make the sliding clamp block slide out of the inside of the sliding arc clamp block, and the outside of the part is clamped again, this double clamping mode, in cooperation with the silica gel soft pad, can not only prevent the thin-walled circular pipe from shaking or falling off in the ultrasonic vibration and liquid flow, but also can avoid the damage of hard contact to the surface of the part, and ensure the yield of the fragile medical instrument parts. Secondly, the application realizes the full-automatic process of "conveying-clamping-immersion polishing-moving out-unloading" of the parts by the cooperation of the power motor, the gear and the rack, the sliding groove track on the ultrasonic polishing machine, ensures that the inner wall of each part can be evenly and sufficiently treated in the ultrasonic polishing pool, significantly improves the production efficiency, and meets the strict requirements of consistency of batch production of medical devices. Thirdly, when the part polishing is completed and moves to the unloading position, the application only needs to control the reverse sliding of the double-end hydraulic rod, absorbs the hydraulic oil in the sliding pipe by the negative pressure generated in the fixed pipe, automatically retracts the sliding clamp block by the force of the mechanical structure itself, does not need to additionally set a complex cylinder or motor to control the reset, greatly simplifies the structure of the device, reduces the fault points, and enables the device to quickly return to the initial state for processing of the next part. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0016] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2 It is a schematic diagram of the gear structure of the present application. Figure 3 It is a schematic diagram of the fixed block cross-section structure of the present application. Figure 4 It is a schematic diagram of the sliding arc clamp block cross-section structure of the present application. Figure 5 It is a schematic diagram of the sliding clamp block sliding structure of the present application.
[0017] In the figure: 1, ultrasonic polishing machine; 2, polishing pool; 3, conveying belt; 4, sliding block; 5, sliding rod; 6, sliding column; 7, fixed block; 8, sliding arc clamp block; 9, limiting sliding groove; 10, double-end hydraulic rod; 11, fixed pipe; 12, sealing rod; 13, conveying pipe; 14, sliding pipe; 15, control sliding rod; 16, sliding track; 17, sliding clamp block; 18, inclined sliding groove; 19, fixed seat; 20, power motor; 21, gear; 22, rack; 23, first straight sliding groove; 24, first inclined groove; 25, second straight sliding groove; 26, second inclined sliding groove; 27, third straight sliding groove. DETAILED DESCRIPTION
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0019] The present invention will be further described below with reference to embodiments.
[0020] Example: A device for grinding the inner wall of precision parts for medical devices, such as... Figures 1-5 As shown, the device includes an ultrasonic polisher 1. The ultrasonic polisher 1 is existing technology, and its specific working principle will not be elaborated upon. The ultrasonic polisher 1 is equipped with a polishing tank 2, and conveyor belts 3 are installed on both sides of the ultrasonic polisher 1. It should be noted that the conveyor belts 3 have grooves to prevent the cylindrical parts from falling off during transport. Figure 1 The left conveyor belt 3 transports the parts to be polished to the ultrasonic polisher 1, while the right conveyor belt 3 transports the polished parts to the next processing location. A sliding block 4 is slidably connected to the ultrasonic polisher 1; the sliding block 4 will not separate from the ultrasonic polisher 1. A sliding rod 5 is slidably connected inside the sliding block 4. A sliding column 6 is fixedly connected to one side of the sliding rod 5, and a fixing block 7 is fixedly connected to the other end of the sliding rod 5. A pair of sliding arc clamping blocks 8 are slidably connected to one side of the fixing block 7. The design of the two sliding arc clamping blocks 8 allows for clamping of cylindrical parts. The arc design ensures a more secure clamping of the parts, and the arc design also ensures face-to-face contact at the clamping points, preventing damage to the parts. The fixing block 7 has an internal opening... A limiting groove 9 is provided, and the sliding arc clamping block 8 is slidably connected to the limiting groove 9. The design of the limiting groove 9 can limit the position of the sliding arc clamping block 8 and prevent the sliding arc clamping block 8 from deviating during the sliding process. A double-ended hydraulic rod 10 is fixedly connected between the two sliding arc clamping blocks 8. A fixing tube 11 is opened inside the fixing block 7. Both ends of the fixing tube 11 are slidably connected to sealing rods 12. The other ends of the two sealing rods 12 are fixedly connected to the two sliding arc clamping blocks 8 respectively. Through the design of the fixing tube 11 and the sealing rods 12, the double-ended hydraulic rod 10 can drive the sliding arc clamping block 8 to slide towards the middle. When clamping the part, it can drive the sealing rods 12 to slide together, so that the sealing rods 12 can squeeze the hydraulic oil in the fixing tube 11. The device can automatically clamp the parts when polishing the parts, and it is necessary to note that the medical device parts mainly aimed at are fixed-diameter round pipes, which can prevent the parts from colliding with the polishing pool 2 when polishing the inner wall of the parts.
[0021] The middle section of the fixed pipe 11 is fixedly communicated with a delivery pipe 13 for delivering hydraulic oil in the fixed pipe 11, and the other end of the delivery pipe 13 is fixedly communicated with a pair of sliding pipes 14.
[0022] The interiors of the two sliding pipes 14 are slidably connected with control slide rods 15, and after the hydraulic oil is delivered into the sliding pipes 14, the control slide rods 15 can be driven to push the sliding rails 16 to slide together.
[0023] The sliding rails 16 are slidably connected with sliding clamps 17 inside the sliding arc clamps 8.
[0024] The interiors of the sliding arc clamps 8 are provided with inclined sliding grooves 18 slidably connected with the sliding clamps 17, and the inclined sliding grooves 18 are used to guide the sliding tracks of the sliding clamps 17.
[0025] The other end of the sliding block 4 is fixedly connected with a fixed seat 19, and the fixed seat 19 is fixedly installed with a power motor 20, which can be limited by the fixed seat 19.
[0026] The ultrasonic polishing machine 1 is fixedly installed with a rack 22 engaged with the gear 21, and through the cooperation between the gear 21 and the rack 22, the power motor 20 can drive the fixed seat 19, the sliding block 4, the sliding rod 5, the fixed block 7 and the sliding arc clamp 8 to slide together.
[0027] The ultrasonic polishing machine 1 is provided with a first straight sliding groove 23, a first inclined groove 24, a second straight sliding groove 25, a second inclined sliding groove 26 and a third straight sliding groove 27, which are interconnected.
[0028] The sliding column 6 is slidably connected with the first straight sliding groove 23, the first inclined groove 24, the second straight sliding groove 25, the second inclined sliding groove 26 and the third straight sliding groove 27, which can guide the position of the sliding column 6.
[0029] The parts to be processed are first conveyed between the two sliding arc clamping blocks 8 by the conveyor belt 3, and then the double-end hydraulic rod 10 is started, so that the double-end hydraulic rod 10 can drive the two sliding arc clamping blocks 8 on both sides to clamp the parts, so that the parts can be clamped between the two sliding arc clamping blocks 8. When the double-end hydraulic rod 10 pulls the two sliding arc clamping blocks 8 to slide in the middle, it can drive the sealing rod 12 to slide together, so that the sealing rod 12 can extrude the hydraulic oil in the fixed pipe 11, so that the hydraulic oil in the fixed pipe 11 can flow into the two sliding pipes 14 through the conveying pipe 13. After the hydraulic oil enters the sliding pipe 14, it can push the control slide rod 15 to slide inside the sliding pipe 14. While the control slide rod 15 is sliding, it can drive the sliding rail 16 to slide to both sides of the sliding arc clamping block 8; While the sliding rail 16 is sliding, it can drive the sliding clamping block 17 to slide together, so that the sliding clamping block 17 can slide inside the inclined sliding groove 18. Under the guidance of the inclined sliding groove 18, the sliding clamping block 17 can slide to the side close to the part, so that the sliding clamping block 17 can also clamp and fix the outside of the part. Through such design, the clamping contact area of the part can be increased, so that the part can be further stably clamped, preventing the part from shaking and detaching from the clamping during subsequent polishing of the part. It should be noted that the contact positions of the sliding clamping block 17 and the sliding arc clamping block 8 with the part are provided with silica gel soft pads, which can prevent the clamped part from sliding and also prevent damage to the part. After the position of the part is clamped and fixed, the power motor 20 is started, so that the power motor 20 drives the gear 21 to rotate, so that the gear 21 drives the fixed seat 19, the sliding block 4, the sliding rod 5, the sliding column 6, the fixed block 7 and the sliding arc clamping block 8 to slide under the cooperation of the rack 22, so that the sliding column 6 can slide at the first straight sliding groove 23. When sliding to the first inclined groove 24, under the guidance of the first inclined groove 24, the sliding column 6 can drive the sliding rod 5, the fixed block 7 and the sliding arc clamping block 8 to slide downward, so that the sliding arc clamping block 8 can drive the part to slide into the inside of the polishing pool 2, so that the ultrasonic polisher 1 can polish the inner wall of the part. After the part is polished, the power motor 20 is continued to be started, so that the sliding column 6 can slide in the second straight sliding groove 25, so that the sliding column 6 can slide into the second inclined sliding groove 26. Under the guidance of the second inclined sliding groove 26, the sliding column 6, the fixed block 7, the sliding arc clamping block 8 and the part can be taken out from the inside of the polishing pool 2; When the sliding column 6 slides into the right end of the third straight sliding groove 27, the double-end hydraulic rod 10 is started at this time, so that the double-end hydraulic rod 10 pushes the sliding arc clamp block 8 on both sides to slide, so that the sealing rod 12 slides in the fixed pipe 11, so that the fixed pipe 11 can be pumped, so that the hydraulic oil can be sucked back in the sliding pipe 14 through the delivery pipe 13, so that the control slide rod 15 can slide in the sliding pipe 14, and the sliding clamp block 17 can slide in the inclined sliding groove 18, so that the control slide rod 15, the sliding rail 16 and the sliding clamp block 17 can be restored to the initial position, facilitating clamping of subsequent parts; It should be noted that the connection between all pipes and rods is sealed to prevent medium from entering.
[0030] In the embodiment: the double-end hydraulic rod 10 can drive the sliding arc clamp block 8 to clamp the part, and the sliding arc clamp block 8 is designed in a circular arc shape, so that the clamping position can be changed to face-to-face contact to prevent damage to the part. The sliding arc clamp block 8 can drive the sealing rod 12 to slide together, so that the sealing rod 12 can extrude the hydraulic oil in the fixed pipe 11, so that the hydraulic oil in the fixed pipe 11 can flow into the sliding pipe 14 through the delivery pipe 13, so that the control slide rod 15 can push the sliding rail 16 and the sliding clamp block 17 to slide, so that the sliding clamp block 17 can slide out of the inside of the sliding arc clamp block 8 under the guidance of the inclined sliding groove 18, and the sliding clamp block 17 can approach the position of the part, so that the sliding clamp block 17 can also clamp the part, so that the part can be more stably clamped. The positions of the sliding arc clamp block 8 and the sliding clamp block 17 that contact the part are also provided with silicone soft pads, which can prevent the clamped part from sliding and also prevent damage to the part.
[0031] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.
Claims
1. A device for grinding the inner wall of precision parts for medical devices, comprising an ultrasonic grinder (1), wherein a grinding tank (2) is provided on the ultrasonic grinder (1), and conveyor belts (3) are provided on both sides of the ultrasonic grinder (1), characterized in that: The ultrasonic polisher (1) is slidably connected to a sliding block (4), and a sliding rod (5) is slidably connected inside the sliding block (4). A sliding column (6) is fixedly connected to one side of the sliding rod (5), and a fixed block (7) is fixedly connected to the other end of the sliding rod (5). A pair of sliding arc clamping blocks (8) are slidably connected to one side of the fixed block (7). A limiting groove (9) is opened inside the fixed block (7). The sliding arc clamping block (8) is slidably connected to the limiting groove (9). A double-ended hydraulic rod (10) is fixedly connected between the two sliding arc clamping blocks (8). A fixed tube (11) is opened inside the fixed block (7). A sealing rod (12) is slidably connected to both ends of the fixed tube (11). The other ends of the two sealing rods (12) are fixedly connected to the two sliding arc clamping blocks (8) respectively. When grinding parts, the device can automatically clamp the parts to prevent the parts from colliding with the grinding pool (2) when grinding the inner wall of the parts.
2. The inner wall grinding device for precision medical device components according to claim 1, characterized in that: The middle section of the fixed pipe (11) is fixedly connected to a conveying pipe (13), which is used to convey hydraulic oil in the fixed pipe (11). The other end of the conveying pipe (13) is fixedly connected to a pair of sliding pipes (14).
3. The inner wall grinding device for precision medical device components according to claim 2, characterized in that: Both of the sliding tubes (14) are slidably connected to control slide rods (15), and the other end of the control slide rods (15) is fixedly connected to a sliding track (16), which is slidably connected to the inside of the sliding arc clamp (8).
4. The inner wall grinding device for precision medical device components according to claim 3, characterized in that: A sliding clamp (17) is slidably connected on the sliding track (16), and the sliding clamp (17) is located inside the sliding arc clamp (8).
5. The inner wall grinding device for precision medical device parts according to claim 4, characterized in that: The sliding arc clamp (8) has an inclined groove (18) inside. The inclined groove (18) is slidably connected to the sliding clamp (17). The inclined groove (18) is used to guide the sliding trajectory of the sliding clamp (17).
6. The inner wall grinding device for precision medical device components according to claim 1, characterized in that: The other end of the sliding block (4) is fixedly connected to a fixed seat (19), and a power motor (20) is fixedly installed on the fixed seat (19). The power output end of the power motor (20) is fixedly connected to a gear (21).
7. The inner wall grinding device for precision medical device components according to claim 6, characterized in that: A rack (22) is fixedly installed on the ultrasonic polisher (1), and the rack (22) meshes with the gear (21).
8. The inner wall grinding device for precision medical device parts according to claim 1, characterized in that: The ultrasonic polisher (1) is provided with a first straight groove (23), a first inclined groove (24), a second straight groove (25), a second inclined groove (26) and a third straight groove (27), and the first straight groove (23), the first inclined groove (24), the second straight groove (25), the second inclined groove (26) and the third straight groove (27) are interconnected.
9. The inner wall grinding device for precision medical device components according to claim 8, characterized in that: The sliding column (6) is slidably connected to the first straight sliding groove (23), the first inclined groove (24), the second straight sliding groove (25), the second inclined sliding groove (26) and the third straight sliding groove (27).