Clamping tool for tail machining of tibial platform product sawing bed

Abstract

The utility model provides a kind of clamping tool for tibial plateau product sawing bed tail cutting, belong to machining fixture technical field. Including left clamping block and right clamping block being set in pairs, the rod portion and wing portion of tibial plateau product are clamped in the clamping device of sawing bed after being clamped radially by left clamping block and right clamping block;The clamping surface of left clamping block is equipped with the concave clamping surface of shape adaptation with rod portion and wing portion, and the clamping surface of right clamping block is equipped with the convex clamping surface of shape adaptation with rod portion and wing portion;The profile of concave clamping surface and convex clamping surface is matched with the appearance of rod portion and wing portion, forms at least three point contact positioning.The utility model is clamped completely by means of tooling during cutting process, cannot slack, effectively prevents cutting deviation;Improve work efficiency, reduce the scrap rate of product, and eliminate damage to equipment.

Description

Technical Field

[0001] This utility model belongs to the field of machining fixture technology, specifically relating to a clamping fixture for the tail cutting of tibial platform products using a saw. Background Technology

[0002] In the field of medical device manufacturing, tibial plateau products, as crucial components of artificial joints, require extremely high machining precision. In existing technologies, the manufacturing process for tibial plateau products involves multiple tail-cutting operations on the rod portion during the forging process. This tail-cutting is typically performed using a sawing machine with direct clamping, which presents the following technical problems: 1. Insufficient contact area: Due to the irregular structure of the product, the traditional clamping method relies on the clamping blocks on both sides of the saw to clamp the product, which can only achieve two-point contact. The clamping area is too small, the clamping stability is poor, and it cannot be fully clamped. This can easily cause the product to tilt and shift during the cutting process, resulting in processing errors or even product scrap.

[0003] 2. Severe equipment damage: The product is made of titanium alloy, which has a higher hardness than the saw clamping block (usually made of cast iron). Long-term use will cause damage to the surface of the clamping block, affecting the accuracy of the equipment and making maintenance difficult.

[0004] 3. Low operational efficiency: Each clamping operation requires manual adjustment of the position, which is time-consuming and labor-intensive, and it is difficult to guarantee repeatability and positioning accuracy. 4. Safety hazards: If the product is not securely clamped, it may fly out during high-speed cutting, causing safety hazards.

[0005] To address the aforementioned issues, it is necessary to propose improvements. Utility Model Content

[0006] The technical problem solved by this utility model is to provide a clamping fixture for the tail cutting process of tibial platform products on a saw. The purpose of this utility model is to overcome the shortcomings of the prior art and provide a special tail cutting clamping fixture for tibial platform products that is stable in clamping, protects the equipment, and is easy to operate.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The clamping fixture for the tail cutting of the tibial platform product by a saw includes a pair of left clamping blocks and right clamping blocks. The left clamping blocks and right clamping blocks radially clamp the rod and wing parts of the tibial platform product and then clamp them in the clamping device of the saw. The left clamping block has a concave clamping surface that matches the shape of the rod and the wing on its clamping surface, and the right clamping block has a convex clamping surface that matches the shape of the rod and the wing on its clamping surface. The contours of the concave and convex clamping surfaces match the shapes of the rod and wing, forming at least three-point contact positioning.

[0008] As a further limitation of the above scheme, the left clamping block and the right clamping block are fixedly connected on both sides by a connecting component, which is a detachable structure that allows adjustment of the distance between the two clamping blocks.

[0009] Further defining the above solution, the connecting assembly includes a connecting screw and a connecting nut. Both sides of the left clamping block and the right clamping block are provided with connecting plates, and each connecting plate is provided with a connecting through hole. The connecting screw passes through the connecting through hole on the connecting plate on the same side of the left clamping block and the right clamping block and is tightened and fixed on both sides by the connecting nut. The length of the connecting screw is less than the total thickness of the left and right clamping blocks to ensure that the clamping blocks fit tightly with the clamping device of the saw. The connecting plate and the clamping block are integrally formed or fixed by fasteners.

[0010] Further defining the above solution, both the left and right clamping blocks are made of wood, and their hardness is lower than that of the material of the tibial plateau product.

[0011] As a further limitation of the above scheme, the clamping surfaces of the left clamping block and the right clamping block are provided with anti-slip textures or elastic pads to enhance clamping stability.

[0012] Further defining the above scheme, the outer surfaces of the left and right clamping blocks are flat, used to contact the clamping device of the saw, and the area of ​​the outer surfaces is larger than the projected area of ​​the clamping surface, so as to disperse the clamping force.

[0013] Advantages of this utility model compared to the prior art: 1. This solution uses a tooling clamp to secure the product, and then the saw clamps the tooling to fix the product in place during the cutting process. This ensures that the product is completely clamped during the cutting process, preventing it from loosening and effectively preventing cutting deviation and scrapping. 2. The clamping force of this solution is transmitted to the clamping block of the saw through the tooling. Moreover, the tooling has a flat shape, and the clamping block of the saw is subjected to uniform force, which will not cause damage to the clamping block of the saw. 3. This solution uses tooling clamping blocks, which are easy to operate and do not require professional technicians, resulting in high efficiency.

[0014] 4. This solution enhances safety by using a dual clamping mechanism (tooling clamps the product + equipment clamps the tooling) to completely prevent the product from flying out, ensuring production safety. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of Embodiment 1 of this utility model; Figure 2 This is a top view of the structure of Embodiment 1 of this utility model; Figure 3 This is a front view of the usage state of Embodiment 1 of this utility model; Figure 4 This is a top view of the usage state of Embodiment 1 of this utility model; Figure 5 This is a front view of the structure of Embodiment 2 of this utility model; Figure 6 This is a top view of the structure of Embodiment 2 of this utility model; Figure 7 This is a structural diagram of the tibial platform product. Detailed Implementation

[0016] 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 scope of protection of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0019] Please see Figure 1-7 The embodiments of this utility model are described in detail below.

[0020] Example 1: See Figure 1-2 As shown, the clamping fixture for the tail cutting of the tibial platform product by a saw includes a pair of left clamping blocks 1 and right clamping blocks 2. The left clamping blocks 1 and right clamping blocks 2 radially clamp the rod and wing 3-1 of the tibial platform product 3 and then clamp it in the clamping device of the saw. The left clamping block 1 has a concave clamping surface 1-1 that matches the shape of the rod and wing 3-1 on its clamping surface, and the right clamping block 2 has a convex clamping surface 2-1 that matches the shape of the rod and wing 3-1 on its clamping surface. The contours of the concave clamping surface 1-1 and the convex clamping surface 2-1 match the shape of the rod and the wing 3-1, forming at least three-point contact positioning.

[0021] Preferably, both the left clamping block 1 and the right clamping block 2 are made of wood, and their hardness is lower than that of the tibial plateau product 3.

[0022] Preferably, the clamping surfaces of the left clamping block 1 and the right clamping block 2 are provided with anti-slip textures or elastic pads to enhance clamping stability.

[0023] The outer surfaces of the left clamping block 1 and the right clamping block 2 are flat and are used to contact the clamping device of the saw. The area of ​​the outer surface is larger than the projected area of ​​the clamping surface to disperse the clamping force.

[0024] When using this embodiment, please refer to... Figure 3-4 As shown, the rod and wing 3-1 of the tibia platform product 3 are clamped using the left clamping block 1 and the right clamping block 2, while the chassis 3-2 is not clamped. Then, the left clamping block 1 and the right clamping block 2 are clamped in the clamping device of the saw, and the tail of the upper end of the rod can be cut.

[0025] Example 2: The left clamping block 1 and the right clamping block 2 are fixedly connected on both sides by a connecting component 4. The connecting component 4 is a detachable structure, which allows adjustment of the distance between the two clamping blocks.

[0026] For details, please refer to Figure 5-6 As shown, the connecting assembly 4 includes a connecting screw 7 and a connecting nut 8. The left clamping block 1 and the right clamping block 2 are provided with connecting plates 5 on both sides. The connecting plates 5 are provided with connecting through holes 6. The connecting screw 7 passes through the connecting through holes 6 on the connecting plates 5 on the same side of the left clamping block 1 and the right clamping block 2 and is tightened and fixed on both sides by the connecting nuts 8.

[0027] Preferably, the length of the connecting screw 7 is less than the total thickness of the left clamping block 1 and the right clamping block 2, so as to ensure that the clamping blocks fit tightly with the clamping device of the saw.

[0028] Preferably, the connecting plate 5 is integrally formed with the clamping block or fixed by fasteners.

[0029] In this embodiment, the rod and wing 3-1 of the tibial platform product 3 are clamped using the left clamping block 1 and the right clamping block 2, while the chassis 3-2 is not clamped. The left clamping block 1 and the right clamping block 2 are then fixedly connected on both sides using the connecting component 4. The left clamping block 1 and the right clamping block 2 are then clamped in the clamping device of the saw, and the tail of the upper end of the rod can be cut. The cutting force is evenly transmitted to the clamping block of the equipment through the tooling.

[0030] This invention uses tooling to completely clamp the product during the cutting process, preventing it from loosening and effectively preventing cutting deviation; it also improves work efficiency, reduces product scrap rate, and eliminates damage to equipment.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping fixture for sawing the tail of tibial plateau products, characterized in that: It includes a pair of left clamping blocks (1) and right clamping blocks (2), which radially clamp the rod and wing (3-1) of the tibial platform product (3) and then clamp it in the clamping device of the saw. The left clamping block (1) has a concave clamping surface (1-1) that matches the shape of the rod and wing (3-1) on its clamping surface, and the right clamping block (2) has a convex clamping surface (2-1) that matches the shape of the rod and wing (3-1) on its clamping surface. The contours of the concave clamping surface (1-1) and the convex clamping surface (2-1) match the shape of the rod and the wing (3-1) to form at least three-point contact positioning.

2. The clamping fixture for sawing the tail of tibial plateau products according to claim 1, characterized in that: The left clamping block (1) and the right clamping block (2) are fixedly connected on both sides by a connecting component (4), which is a detachable structure that allows adjustment of the distance between the two clamping blocks.

3. The clamping fixture for sawing the tail of tibial plateau products according to claim 2, characterized in that: The connecting assembly (4) includes a connecting screw (7) and a connecting nut (8). The left clamping block (1) and the right clamping block (2) are provided with connecting plates (5) on both sides. The connecting plates (5) are provided with connecting through holes (6). The connecting screw (7) passes through the connecting through holes (6) on the connecting plates (5) on the same side of the left clamping block (1) and the right clamping block (2) and is tightened and fixed on both sides by the connecting nuts (8). The length of the connecting screw (7) is less than the total thickness of the left clamping block (1) and the right clamping block (2) to ensure that the clamping blocks fit tightly with the clamping device of the saw. The connecting plate (5) is integrally formed with the clamping block or fixed by fasteners.

4. The clamping fixture for sawing the tail of tibial plateau products according to claim 1, characterized in that: The left clamping block (1) and the right clamping block (2) are both made of wood, and their hardness is lower than that of the tibial plateau product (3).

5. The clamping fixture for sawing the tail of tibial plateau products according to claim 1, characterized in that: The clamping surfaces of the left clamping block (1) and the right clamping block (2) are provided with anti-slip textures or elastic pads to enhance clamping stability.

6. The clamping fixture for sawing the tail of tibial plateau products according to claim 1, characterized in that: The outer surfaces of the left clamping block (1) and the right clamping block (2) are flat and are used to contact the clamping device of the saw. The area of ​​the outer surface is larger than the projected area of ​​the clamping surface to disperse the clamping force.

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