Humerus shaft tool

By designing a humeral shaft tooling with contour placement slots, fine-tuning components, and clamping components, the problems of inaccurate positioning and unstable clamping in humeral shaft machining were solved, achieving precise positioning, stable clamping, and efficient cooling, thus improving machining accuracy and efficiency.

CN223969194UActive Publication Date: 2026-03-06XIAMEN CHANGZHUN MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422836070.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2026-03-06
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Traditional humeral shaft tooling suffers from problems such as inaccurate positioning, unreasonable clamping methods, inability to fine-tune, and improper handling of debris and coolant, which affect machining accuracy and safety.

Method used

A humeral backbone tooling was designed, comprising a tooling body, a fine-tuning component, and a clamping component. It achieves precise positioning, stable clamping, and efficient cooling by using a contour placement slot for initial positioning, a fine-tuning component for horizontal fine-tuning, and a clamping component for vertical clamping. Combined with a collection slot for collecting debris and a jet hole for cooling, it achieves precise positioning, stable clamping, and efficient cooling.

Benefits of technology

It improves the precision and stability of humeral shaft machining, reduces machining errors and vibrations, extends tooling life, and improves machining quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223969194U_ABST
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Abstract

The utility model relates to a humerus shaft tool which comprises a tool body, a fixing part and a fixing part. A concave profiling placing groove is formed in the convex part; collecting grooves on the inner side are arranged on the profiling placing groove in an array manner; the fine adjustment assembly is embedded in the protruding part, and the fine adjustment assembly can extrude the humerus shaft on the profiling containing groove to move and extrude in the horizontal direction; the pressing assembly is detachably installed on the protruding part and used for applying pressing force in the vertical direction to the humerus shaft on the profiling containing groove. The device has the advantages of reasonable structure, complete functions, convenience in operation, high precision, good stability and the like.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for medical device processing, specifically a tooling for processing the humeral shaft. Background Technology

[0002] During the machining of the humeral shaft, precise positioning and secure clamping are essential to ensure machining accuracy and quality. Traditional humeral shaft tooling may suffer from inaccurate positioning, improper clamping methods, inability to perform fine adjustments, and a lack of effective handling of debris and coolant generated during machining. These problems not only affect machining accuracy and efficiency but may also damage the humeral shaft, impacting product quality and safety.

[0003] In view of this, it is of great practical significance to develop and design a high-efficiency, precise and fully functional tooling specifically for machining the humeral shaft. Summary of the Invention

[0004] The purpose of this utility model is to provide a humeral shaft tooling with advantages such as reasonable structure, complete functions, convenient operation, high precision, and good stability, which can effectively meet various needs of humeral shaft processing, improve the processing quality and production efficiency of humeral shaft, and solve the above-mentioned technical problems.

[0005] To achieve the above technical solution, the technical solution of this utility model is as follows: A humeral shaft tooling mainly includes a tooling body, a fine-tuning component and a clamping component.

[0006] The tooling body is the basic structure of the entire tooling. A protrusion can be detachably mounted on it, and the protrusion has a recessed contour placement groove for placing the humeral shaft and initially positioning it. An array of inner collection grooves is arranged on the contour placement groove, possibly for collecting debris or coolant generated during processing.

[0007] The fine-tuning component is embedded in the protrusion and can squeeze the humeral shaft on the contour placement groove to move and squeeze in the horizontal direction, thereby achieving fine-tuning of the position of the humeral shaft to ensure its precise position during processing.

[0008] The clamping component is detachably mounted on the protrusion and is used to apply vertical clamping force to the humeral shaft on the contour placement slot. In conjunction with the fine-tuning component, the humeral shaft is firmly clamped to form a triangular clamping position, which improves the stability and reliability of the clamping.

[0009] Furthermore, the protrusion has a concave positioning shoulder, the depth of which is much smaller than the depth of the contour placement groove. The function of the positioning shoulder may be to provide initial positioning and guidance when placing the humeral shaft, helping the humeral shaft to be placed into the contour placement groove more quickly and accurately, while also limiting the lateral displacement of the humeral shaft to some extent.

[0010] The top of the protrusion is symmetrically equipped with clamping and positioning parts on both sides. One end of the clamping assembly is inserted into the clamping and positioning part, providing an accurate installation position for the clamping assembly and ensuring the accurate direction and position of the clamping force, thereby achieving effective clamping of the humeral shaft. The protrusion is provided with inclined spray holes, which are symmetrically arranged on both sides of the contour placement groove. These holes may be used to spray coolant or gas to cool, clean, or dry the humeral shaft during processing, thereby improving processing quality and efficiency.

[0011] Furthermore, the fine-tuning component includes deformable extrusion sections symmetrically arranged on both sides of the contour placement groove. Each deformable extrusion section consists of a first deformable layer, an insulating layer, and a second deformable layer, sequentially bonded together from the inside out. Both the first and second deformable layers are controlled by a circuit; under the action of an external electric field, both the first and second deformable layers deform along their width. By controlling the strength and direction of the electric field, the amount and direction of deformation of the deformable extrusion section can be precisely controlled, thereby achieving fine-tuning of the humeral shaft in the horizontal direction.

[0012] The second deformation layer is a trapezoidal piezoelectric ceramic. This shape may be designed to better adapt to the shape of the contour placement groove and the fine-tuning requirements of the humeral shaft, providing a more uniform and stable extrusion force.

[0013] Furthermore, the clamping assembly includes an L-shaped clamping plate with a through-hole, which is detachably mounted on the protrusion via fasteners. The design of the through-hole allows for easy adjustment of the clamping assembly's installation position to accommodate different humeral shaft sizes and processing requirements. An elastic element is provided between adjacent L-shaped clamping plates and the protrusion. This elastic element acts as a buffer during clamping, preventing damage to the humeral shaft from excessive instantaneous clamping force, while also ensuring a uniform distribution of clamping force and improving clamping stability.

[0014] Furthermore, a wear-resistant coating with a thickness of 0.1 micrometers is applied to the contour placement groove. The wear-resistant coating can reduce friction and wear between the humeral shaft and the contour placement groove, extend the service life of the tooling, and at the same time ensure the surface quality of the humeral shaft during placement and processing, avoid defects such as scratches caused by friction, and improve the processing accuracy and quality of the product.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) The design of the contour placement slot and positioning shoulder enables preliminary and precise positioning of the humeral shaft, providing a solid foundation for machining. The fine-tuning components allow for precise horizontal adjustments to the humeral shaft, adjusting it to the optimal machining position based on different machining requirements and the actual condition of the humeral shaft, significantly improving machining accuracy and precision. This precise positioning and fine-tuning function effectively reduces machining errors caused by positional deviations, improving product quality and consistency.

[0017] 2) The clamping assembly applies a vertical clamping force to the humeral shaft, forming a triangular clamping position in conjunction with the fine-tuning assembly. This clamping method ensures that the humeral shaft receives a uniform and stable clamping force during machining, effectively preventing displacement or loosening and ensuring the stability and continuity of the machining process. The triangular clamping position also improves the clamping rigidity of the tooling on the humeral shaft, reducing vibration and deformation during machining, further improving machining accuracy and surface quality.

[0018] 3) The collection tank on the tooling can collect debris and coolant generated during processing, preventing contamination of the processing environment and tooling. It also helps maintain the cleanliness of the processing area, improving processing efficiency. The spray nozzle design allows for the spraying of coolant or gas as needed, achieving functions such as cooling, cleaning, or drying of the humeral shaft, meeting the requirements of different processing techniques and improving the adaptability and functionality of the tooling. Furthermore, the adjustability of the fine-tuning and clamping components allows the tooling to adapt to the processing needs of humeral shafts of different sizes and shapes, improving the tooling's versatility and flexibility.

[0019] 4) The wear-resistant coating applied to the contour placement groove reduces friction and wear between the humeral shaft and the tooling, protecting the surface quality of the humeral shaft and preventing scratches and other defects during processing, while also extending the tooling's service life. This helps reduce production costs, improve production efficiency, and ensure product processing quality and stability. Attached Figure Description

[0020] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] Figure 1 A 3D drawing of the humeral shaft tooling. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] 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 embodiments.

[0024] Please see the appendix Figure 1 As shown: A humeral shaft tooling, comprising:

[0025] A tooling body 1, on which a protrusion 11 is detachably mounted; the protrusion 11 is provided with a concave contour placement groove 12; the contour placement groove 12 is provided with an inner collection groove 13 arranged in an array.

[0026] A fine-tuning component 2 is embedded in the protrusion 11. The fine-tuning component 2 can squeeze the humeral shaft on the contour placement groove 12 to move and squeeze in the horizontal direction.

[0027] A clamping component 3 is detachably mounted on the protrusion 11 and is used to apply a vertical clamping force to the humeral shaft on the contour placement groove 12.

[0028] Wherein: the fine-tuning component 2 presses the humeral shaft along one end of the horizontal contour placement groove 12 and is clamped and positioned in a triangular shape by the clamping components 3 arranged in the array.

[0029] Based on the above embodiments, the protrusion 11 is provided with a concave positioning shoulder 15; the depth of the positioning shoulder 15 is much smaller than the depth of the contour placement groove 12.

[0030] Based on the above embodiment, the top two sides of the protrusion 11 are symmetrically provided with pressing and positioning parts 14; one end of the pressing component 3 is inserted into the pressing and positioning part 14;

[0031] The protrusion 11 is provided with an inclined spray hole; the spray holes are symmetrically arranged on both sides of the contour placement groove 12.

[0032] Based on the above embodiments, the fine-tuning component 2 includes deformation extrusion parts symmetrically arranged on both sides of the contour placement groove 12; the deformation extrusion part includes a first deformation layer, an insulating layer and a second deformation layer that are sequentially bonded together from the inside to the outside; the first deformation layer and the second deformation layer are both controlled by a circuit; under the action of an external electric field, the first deformation layer and the second deformation layer both deform along the width direction.

[0033] Based on the above embodiments, the second deformed layer is a trapezoidal piezoelectric ceramic.

[0034] Based on the above embodiments, the pressing assembly 3 includes an L-shaped pressure plate 31 with a through elongated hole; the L-shaped pressure plate 31 is detachably mounted on the protrusion 11 by fasteners; and an elastic element is provided between adjacent L-shaped pressure plates 31 and the protrusion 11.

[0035] Based on the above embodiments, the contour placement groove 12 is coated with a wear-resistant coating with a thickness of 0.1 micrometers.

[0036] The specific operation is as follows: Humeral shaft placement: Carefully place the humeral shaft to be processed into the contour placement groove of the protrusion on the fixture body, ensuring it fits as closely as possible to the groove. Simultaneously, use the positioning shoulder for initial positioning to ensure accurate placement of the humeral shaft. Fine-tuning operation: According to the processing requirements, apply an electric field by controlling the circuit of the fine-tuning component, causing the deformation extrusion part to fine-tune the humeral shaft horizontally. Observe the positional changes of the humeral shaft until the precise processing position is achieved. During fine-tuning, carefully control the electric field strength to avoid excessive fine-tuning that could damage the humeral shaft. Clamping operation: Activate the clamping component, applying vertical clamping force to the humeral shaft through the L-shaped clamping plate. During clamping, the elastic element acts as a buffer, ensuring the clamping force is evenly distributed on the humeral shaft. Ensure the humeral shaft is firmly clamped, forming a triangular clamping position to improve clamping stability. Processing operation: After the humeral shaft is clamped and its position adjusted, corresponding processing operations can be performed, such as cutting, grinding, and drilling. During processing, close monitoring of the tooling's working status is crucial to ensure the proper functioning of the fine-tuning and clamping components, and the stable position of the humeral shaft. Simultaneously, coolant or gas can be sprayed through the injection holes as needed to cool, clean, or dry the humeral shaft. Removal and Unloading: After processing, first loosen the clamping components to release the clamping force on the humeral shaft. Then, turn off the electric field of the fine-tuning components to allow the deformed extrusion section to return to its original shape. Finally, carefully remove the processed humeral shaft from the tooling, taking care to avoid damage to the humeral shaft and the tooling. In summary, this humeral shaft processing tooling possesses advantages such as reasonable structure, complete functions, convenient operation, high precision, and good stability, effectively meeting various needs in humeral shaft processing and improving processing quality and production efficiency.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A humeral shaft jig, characterized by, The utility model provides a kind of adjustable fixture, including: A tool body (1), the protruding part (11) is detachably installed on the tool body (1);The concave profiling placement groove (12) is provided on the protruding part (11);The inner side collection groove (13) is arrayed on the profiling placement groove (12); A fine adjustment assembly (2) is embedded on the protruding part (11), and the fine adjustment assembly (2) can extrude the humeral shaft on the profiling placement groove (12) to move extrusion in horizontal direction; A compression assembly (3) is detachably installed on the protruding part (11), for applying compression force in vertical direction to the humeral shaft on the profiling placement groove (12); Wherein: the fine adjustment assembly (2) extrudes humeral shaft along horizontal direction profiling placement groove (12) one end compression, in cooperation with arrayed compression assembly (3) and is enclosed to be a triangular clamping positioning.

2. The humeral diaphysis jig of claim 1, wherein: The protruding part (11) is provided with a concave positioning shoulder (15);The depth of the positioning shoulder (15) is much smaller than the depth of the profiling placement groove (12).

3. The humeral diaphysis jig of claim 2, wherein: The protruding part (11) is provided with a concave positioning shoulder (15);The depth of the positioning shoulder (15) is much smaller than the depth of the profiling placement groove (12). The protruding part (11) is provided with a concave positioning shoulder (15);The depth of the positioning shoulder (15) is much smaller than the depth of the profiling placement groove (12).

4. The humeral diaphysis jig of claim 1, wherein: The protruding part (11) is provided with a concave positioning shoulder (15);The depth of the positioning shoulder (15) is much smaller than the depth of the profiling placement groove (12).

5. The humeral diaphysis jig of claim 4, wherein: The fine adjustment assembly (2) includes deformation extrusion part symmetrically arranged on both sides of the profiling placement groove (12);The deformation extrusion part includes first deformation layer, insulating layer and second deformation layer sequentially adhered from inside to outside;The first deformation layer and the second deformation layer are both controlled by circuit;Under the action of external electric field, the first deformation layer and the second deformation layer are deformed along the width direction.

6. The humeral diaphysis jig of claim 1, wherein: The second deformation layer is a trapezoidal piezoelectric ceramic.

7. The humeral diaphysis jig of claim 1, wherein: The compression assembly (3) includes L-shaped pressing plate (31) provided with through long strip-shaped hole;The L-shaped pressing plate (31) is detachably installed on the protruding part (11) by fastener;Adjacent L-shaped pressing plate (31) and the protruding part (11) are provided with elastic element. The profiling placement groove (12) is coated with a wear-resistant coating with a thickness of 0.1 microns.