Tibia stem processing tool

Abstract

The utility model relates to a tibia stem machining tool which comprises a square body. The body is provided with a concave profiling placing groove; the profiling placing groove is provided with a pressing part which can slightly deform outwards in the radial direction; an extrusion part is movably arranged on the inner side of the body; and the extrusion part can drive the pressing part to expand outwards to clamp the tibia stem. The utility model has the advantages of reasonable structure, practical function, simplicity and convenience in operation, high precision, good stability and the like, and can effectively meet various requirements in the tibia stem processing process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment processing tooling, in particular to a tibial stem processing tooling. Background Art

[0002] During the machining process, the tibial stem requires precise positioning and secure clamping to ensure machining accuracy and quality. Traditional tibial stem machining tooling can suffer from uneven clamping force, an inability to accommodate tibial stems of varying sizes, damage to the stem during clamping, and operational inconvenience.

[0003] In view of this, it is of great significance to design a tibial stem processing tooling that can effectively solve these problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a tibial stem processing tooling which has the advantages of reasonable structure, practical functions, simple operation, high precision, good stability, etc., and can effectively meet various requirements in the tibial stem processing process to solve the above technical problems.

[0005] In order to realize the above technical solution, the technical solution of the utility model is as follows: a tibial stem processing tool, comprising a square body; the body is provided with an inwardly concave contoured placement groove; the contoured placement groove is provided with a clamping part that can be slightly deformed radially outward; the inner side of the body is movably provided with an extrusion part; the extrusion part can drive the clamping part to expand outward to complete the clamping of the tibial stem.

[0006] Furthermore, the pressing portion is integrally formed with the body; a deformation groove is provided in a circumferential array on the pressing portion; an insertion groove is provided along the axial direction of the pressing portion; and the extrusion portion is movably inserted in the insertion groove.

[0007] Furthermore, the extrusion part includes a clamping screw horizontally screwed on the main body; one end face of the clamping screw is in contact with and connected to an extrusion block slidably arranged on the inner side of the main body; an elastic component is provided on one side of the extrusion block; a deformation pin is movably provided above the extrusion block; and the deformation pin is movably inserted in the insertion slot.

[0008] Furthermore, an extrusion surface is inclined on one side of the extrusion block; one end of the deformation needle is in line contact with the extrusion surface; and one end of the deformation needle is provided with a cylindrical roller.

[0009] Furthermore, the insertion groove is arranged in a truncated cone shape.

[0010] Furthermore, the width of the deformation groove is 0.2 mm.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) The contoured placement groove design on the main body enables precise contour positioning of the tibial stem, providing an accurate positioning basis for processing. The design of the clamping portion, which can slightly deform radially outward, combined with the function of the extrusion portion, can achieve uniform clamping of the tibial stem. This uniform clamping force ensures that all parts of the tibial stem are evenly stressed during processing, preventing displacement or deformation, thereby greatly improving the processing accuracy and quality. Compared with traditional clamping methods, this tool can better ensure the processing accuracy of the tibial stem and reduce dimensional deviation and surface roughness problems caused by uneven clamping.

[0013] 2) The slightly deformable design of the compression section and the provision of an elastic component in the extrusion section effectively prevent damage to the tibial stem during the clamping process. When the clamping force is applied, the compression section adaptively conforms to the surface of the tibial stem through the deformation of the deformation groove, while the elastic component absorbs some of the impact force, acting as a buffer. This design ensures sufficient clamping force to secure the tibial stem while minimizing the risk of damage to the tibial stem. This provides important protection, especially for tibial stems made of brittle materials or requiring high surface precision.

[0014] 3) The structural design of the tibial stem processing tool is relatively simple, consisting primarily of a main body, a clamping portion, and an extrusion portion. This simple structure makes it easy for operators to understand and operate during use. The tibial stem can be clamped and loosened by rotating the clamping screw, and the clamping force can be precisely controlled according to actual needs. This easily controllable clamping force improves the flexibility and controllability of the processing process, meeting the requirements of different processing techniques and tibial stem materials, while also reducing the operator's skill requirements and operational difficulty.

[0015] 4) Due to the micro-deformability of the clamping section and the adjustability of the extrusion section, this tooling can accommodate the processing needs of tibial stems of varying sizes and shapes. Whether it's a standard-sized tibial stem or a workpiece with varying dimensions, optimal clamping can be achieved by adjusting the clamping force and the degree of deformation of the clamping section. Furthermore, the tooling offers high stability during machining, withstanding external interference such as cutting forces and vibration, ensuring smooth machining and improving production efficiency and consistent product quality.

[0016] In summary, the tibial stem processing tooling has the advantages of reasonable structure, practical functions, easy operation, high precision and good stability. It can effectively meet various needs in the tibial stem processing process and provide a reliable guarantee for improving the processing quality and production efficiency of the tibial stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0018] Figure 1 A three-dimensional image of the tibial stem machining tooling;

[0019] Figure 2 This is the front view of the tibial stem processing tooling. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Please see the attached Figures 1 to 2 As shown: A tibial stem processing tool, comprising a square body 1; the body 1 is provided with an inwardly concave contour placement groove 2; the contour placement groove 2 is provided with a pressing portion 3 that can be slightly deformed radially outward; the inner side of the body 1 is movably provided with an extrusion portion 4; the extrusion portion 4 can drive the pressing portion 3 to expand outward to complete the clamping of the tibial stem. Through the design of the contour placement groove on the body, the tibial stem can be accurately contoured and positioned, providing an accurate position basis for processing. The design of the compression portion that can be slightly deformed radially outward, combined with the action of the extrusion portion, can achieve uniform clamping of the tibial stem. This uniform clamping force can ensure that all parts of the tibial stem are subjected to uniform force during the processing process, and no displacement or deformation will occur, thereby greatly improving the processing accuracy and quality. Compared with traditional clamping methods, this tool can better ensure the processing accuracy of the tibial stem and reduce the dimensional deviation and surface roughness problems caused by uneven clamping.

[0023] On the basis of the above embodiment, the pressing part 3 is integrally formed with the main body 1; a deformation groove 31 is provided in a circumferential array on the pressing part 3; an insertion groove 32 is provided along the axial direction of the pressing part 3; and the extrusion part 4 is movably inserted in the insertion groove 32. The above design effectively avoids damage to the tibial stem during the clamping process. When the clamping force is applied, the pressing part can adaptively fit the surface of the tibial stem through the deformation of the deformation groove, and the elastic component can absorb part of the impact force and play a buffering role. This design method can not only ensure sufficient clamping force to fix the tibial stem, but also minimize the risk of damage to the tibial stem. It plays an important protective role, especially for tibial stems with brittle materials or high surface accuracy requirements.

[0024] Based on the above embodiment, the extrusion part 4 includes a clamping screw 41 horizontally screwed on the main body 1; one end face of the clamping screw 41 is in contact with and connected to an extrusion block 42 slidably arranged on the inner side of the main body 1; an elastic component 44 is provided on one side of the extrusion block 42; a deformation pin 45 is movably provided above the extrusion block 42; the deformation pin 45 is movably inserted in the insertion slot 32.

[0025] Based on the above embodiment, one side of the extrusion block 42 is provided with an extrusion surface at an angle; one end of the deformation needle 45 is in line contact with the extrusion surface; and one end of the deformation needle 45 is provided with a cylindrical roller.

[0026] Based on the above embodiment, the insertion slot 32 is configured in a truncated cone shape.

[0027] Based on the above embodiment, the width of the deformation groove 31 is 0.2 mm.

[0028] The practical operation is as follows: Tibial Stem Placement: Carefully place the tibial stem to be processed into the contoured placement slot of the main body, ensuring it fits snugly into the groove to achieve initial positioning. During placement, be careful to avoid collisions with other tooling components to prevent damage to the tooling or the tibial stem. Clamping: Rotate the compression screw in the extrusion section, pushing the extrusion block to slide inside the main body. The extrusion surface of the extrusion block acts on the deformation pin, causing it to move within the insertion slot, thereby driving the compression section outward and clamping the tibial stem. While rotating the compression screw, the operator should control the rotation speed and force according to the pre-set clamping force, while observing the clamping state of the tibial stem to ensure a secure and even clamping. The appropriate clamping force can be determined by feel or using appropriate testing tools to avoid deformation or damage to the tibial stem caused by over-clamping. Sufficient clamping force should also be ensured to prevent displacement of the tibial stem during processing. Processing: After the tibial stem is clamped, processing operations such as cutting, grinding, and drilling can be performed. During the machining process, the operator should carefully observe the machining progress to ensure smooth operation. Also, regularly check the clamping state of the tibial stem for changes. If any abnormality is detected, the process should be stopped and adjusted immediately. Loosening and Removal: After machining is complete, reverse the compression screw to return the extrusion block and deformation pin to their initial positions. The elastic restoring force of the compression element allows the clamping portion to return to its original state, releasing the clamping state of the tibial stem. The machined tibial stem can then be carefully removed from the tooling, taking care to avoid damaging the tibial stem and tooling.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art should be able to utilize the technical contents disclosed above and make equivalent embodiments that are equivalent changes by making slight changes or modifications without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A tibial stem processing tool, characterized in that: The invention comprises a square body (1); the body (1) is provided with an inwardly concave contour placement groove (2); the contour placement groove (2) is provided with a clamping portion (3) which can be slightly deformed radially outward; an extrusion portion (4) is movably provided on the inner side of the body (1); the extrusion portion (4) can drive the clamping portion (3) to expand outward to complete the clamping of the tibial stem.

2. The tibial stem processing tool according to claim 1, characterized in that: The pressing portion (3) and the main body (1) are integrally formed; a deformation groove (31) is provided in a circumferential array on the pressing portion (3); an insertion groove (32) is provided along the axial direction of the pressing portion (3); and the extrusion portion (4) is movably inserted into the insertion groove (32).

3. The tibial stem processing tool according to claim 2, characterized in that: The extrusion portion (4) includes a clamping screw (41) horizontally screwed onto the body (1); one end face of the clamping screw (41) is in contact with an extrusion block (42) slidably arranged on the inner side of the body (1); an elastic component (44) is provided on one side of the extrusion block (42); a deformation pin (45) is movably provided above the extrusion block (42); and the deformation pin (45) is movably inserted into the insertion slot (32).

4. The tibial stem processing tool according to claim 3, characterized in that: One side of the extrusion block (42) is provided with an extrusion surface in an inclined manner; one end of the deformation needle (45) is in line contact with the extrusion surface; and one end of the deformation needle (45) is provided with a columnar roller.

5. The tibial stem processing tool according to claim 3, characterized in that: The insertion groove (32) is arranged in a truncated cone shape.

6. The tibial stem processing tool according to claim 2, characterized in that: The width of the deformation groove (31) is 0.2 mm.

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