Mould for artificial alloy joint

Abstract

The utility model relates to the technical field of artificial joint manufacturing, in particular to a mould for an artificial alloy joint, which comprises a movable mould and a fixed mould matched with the movable mould, opposite surfaces of the movable mould and the fixed mould are provided with cavities for accommodating alloy joint blanks, and a correcting device is arranged between the movable mould and the fixed mould. The correcting device comprises a correcting hole formed in the movable mold in a penetrating manner, and a positioning hole corresponding to the correcting hole is formed in the upper surface of the fixed mold, so that high precision and stability in the manufacturing process are ensured, and the quality and the performance of a final product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial joint manufacturing, and particularly relates to a mold for artificial alloy joints. Background Art

[0002] An artificial joint is composed of an artificial bone joint and a gasket. The artificial bone joint is made of metal, and the gasket is prepared from a polymer material. The two are placed adjacent to each other to replace human cartilage to realize the movement of the joint. According to statistics, the proportion of revisions due to loosening / dissolution within 12 years after the operation of artificial joints is 2%. It helps to improve the service life of artificial knee joints and improve the quality of life of patients.

[0003] Titanium alloy has the characteristics of high strength, good corrosion resistance, heat resistance, non-toxicity, light weight, and excellent biocompatibility. The elastic modulus of titanium alloy is 55-105 GPa, and the yield strength is 100-1000 Mpa. It is an ideal medical metal material. Forging molds are used in the processing of titanium alloy joints. The existing forging molds first heat the blank and then place the blank inside the forging mold. The size of the blank is further forged and shaped by the forging of the upper and lower molds, making the artificial alloy mold more precise and then meeting the finished product standard. Due to the high dimensional requirements of the finished product, if the relative position of the upper and lower molds changes during the forging process of the blank, the size of the finished product will have an error. Therefore, the position of the upper and lower molds needs to be corrected before each forging. Some of the existing correction methods are visual inspection, and some use jigs to measure the position error of the upper and lower molds, but there are certain errors in the correction accuracy. Especially during rapid production, the correction efficiency is slow and it is not convenient for production. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency that the efficiency of the mold used for artificial alloy joints in the prior art is low during correction and affects production, and to provide a mold for artificial alloy joints.

[0005] In order to achieve the above purpose, the embodiment of the utility model specifically adopts the following technical solutions: A mold for artificial alloy joints, including a moving mold and a fixed mold that cooperates with the moving mold. The opposite surfaces of the moving mold and the fixed mold are provided with cavities for accommodating alloy joint blanks. A correction device is arranged between the moving mold and the fixed mold. The correction device includes a correction hole penetrating through the moving mold, and a positioning hole corresponding to the correction hole is arranged on the upper surface of the fixed mold.

[0006] Furthermore, the cross-sections of the correction hole and the positioning hole are U-shaped. The correction hole is vertically penetrated, the depth of the positioning hole is greater than or equal to 5 cm, and correction columns with the same cross-section are arranged in cooperation with the correction hole and the positioning hole.

[0007] Furthermore, a set of the calibration holes and the positioning holes are respectively arranged at the diagonal corners of the moving die and the fixed die.

[0008] Furthermore, a position sensor is arranged on the side of the fixed die, and an induction sheet matched with the position sensor is arranged on the side of the fixed die.

[0009] Furthermore, the position sensor is arranged on the fixing block and at least two position sensors are provided. The fixing block is bolted to the fixed die.

[0010] Furthermore, the induction sheet is bolted to the moving die through a connecting plate, and the induction sheet is a laterally-mounted U shape.

[0011] The beneficial effects of the embodiments of the present utility model are as follows: the cross-sections of the calibration holes and the positioning holes are both designed as U shapes. The multiple edges and corners of the U shape facilitate the alignment of the fixed die and the moving die. This design can ensure that the calibration posts have stable support and positioning effects when inserted. Position sensors and induction sheets are arranged on the sides of the fixed die and the moving die. The induction sheet is designed as a laterally-mounted U-shaped structure. This structure enables the induction sheet to have a certain amount of deformation in the vertical direction. When the mold is completely closed, the induction sheet will contact the position sensor, thereby triggering the position sensor to send a signal, ensuring high precision and stability during the manufacturing process, and thus improving the quality and performance of the final product. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the structural schematic diagram of the present utility model;

[0014] Figure 3 is the structural schematic diagram of the present utility model;

[0015] In the figure: 1, moving die; 101, calibration hole; 102, cavity; 2, fixed die; 201, positioning hole; 301, induction sheet; 302, position sensor; 4, calibration post. Specific Embodiments

[0016] The following describes the preferred embodiments of the present utility model with reference to the attached drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0017] See Figures 1 to 3, an embodiment of the present utility model discloses a mold for artificial alloy joints. The auxiliary mold has high precision and stability during the manufacturing process. It mainly consists of a moving mold 1 and a fixed mold 2. Cavities 102 are provided on the opposite surfaces of the moving mold 1 and the fixed mold 2. These cavities 102 are used to accommodate alloy joint blanks so as to form the shape of alloy joints during subsequent die-casting or forging processes.

[0018] The calibration device includes a calibration hole 101 penetrating through the moving mold 1 and a positioning hole 201 provided on the upper surface of the fixed mold 2. The design of these hole positions allows for precise adjustment when the mold is closed. The cross-sections of the calibration hole 101 and the positioning hole 201 are both designed as U-shaped. The multiple edges of the U-shape facilitate the alignment of the fixed mold 2 and the moving mold 1. This design can ensure stable support and positioning effects when the calibration post 4 is inserted. The calibration hole 101 vertically penetrates the moving mold 1, and the depth of the positioning hole 201 is greater than or equal to 5 cm. The calibration hole 101 and the positioning hole 201 are cooperatively provided with a calibration post 4 having the same cross-section. During the calibration process, the calibration post 4 can only be inserted into the calibration hole 101 and the positioning hole 201 when the moving mold 1 and the fixed mold 2 are stably cooperated. After the relative positions of the fixed mold 2 and the moving mold 1 are stable, the positions are fixed. By adjusting the relative position and angle between the fixed mold 2 and the moving mold 1, precise adjustment of the relative positions of the moving mold 1 and the fixed mold 2 can be achieved, ensuring product precision.

[0019] To improve the accuracy and stability of adjustment, a set of calibration holes 101 and positioning holes 201 are provided at each diagonal of the moving mold 1 and the fixed mold 2. This layout can ensure that the mold can be evenly adjusted in multiple directions.

[0020] To ensure that the mold can maintain a stable positional relationship during production, position sensors 302 and induction chips 301 are also provided on the sides of the fixed mold 2 and the moving mold 1. The position sensors 302 are provided on fixed blocks, and the fixed blocks are fixedly connected to the fixed mold 2 by bolting. At least two position sensors 302 are provided to ensure that the working state of the mold can be monitored from multiple angles. The induction chip 301 is bolted to the moving mold 1 through a connecting plate. The induction chip 301 is designed as a laterally mounted U-shaped structure. This structure enables the induction chip 301 to have a certain amount of deformation in the vertical direction. When the mold is completely closed, the induction chip 301 will contact the position sensor 302, thereby triggering the position sensor 302 to send a signal. This signal can be used to monitor the closing state of the mold and make further adjustments or inspections when needed. Since the area of the induction chip 301 is small, if the moving mold 1 and the fixed mold 2 are displaced, the induction chip 301 will also be misaligned with the position sensor 302, resulting in the position sensor 302 not being triggered, and then an alarm is issued to ensure the use effect and the machining precision of the product.

[0021] Working principle: First, the alloy joint blank needs to be placed in the cavity 102. Then, the position and angle of the moving die 1 and the fixed die 2 are adjusted through the alignment column 4 to ensure that the relative position of the moving die 1 and the fixed die 2 accurately meets the production requirements. Once the adjustment is completed, subsequent processing processes such as die casting or forging can be carried out. During the closing process of the mold, the position sensor 302 will monitor the closing state of the mold in real time and send a signal when necessary to remind the operator to make further adjustments or inspections, ensuring high precision and stability during the manufacturing process, thereby improving the quality and performance of the final product.

[0022] It should be noted that in the description of the present utility model, the terms indicating directions or position relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0025] So far, the technical solution of the present utility model has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A mold for an artificial alloy joint, comprising a movable mold (1) and a fixed mold (2) matched with the movable mold (1), characterized in that: The opposing surfaces of the movable mold (1) and the fixed mold (2) are provided with a mold cavity (102) for accommodating the alloy joint blank, a correction device is provided between the movable mold (1) and the fixed mold (2), the correction device comprises a correction hole (101) penetrating the movable mold (1), and a positioning hole (201) corresponding to the correction hole (101) is provided on the upper surface of the fixed mold (2); The cross-sections of the correction hole (101) and the positioning hole (201) are U-shaped, the correction hole (101) is vertically penetrated, the depth of the positioning hole (201) is greater than or equal to 5 cm, and the correction hole (101) and the positioning hole (201) are matched with correction columns (4) with the same cross-section.

2. The artificial alloy joint mold according to claim 1, characterized in that: The correction holes (101) and the positioning holes (201) are each provided at the diagonal positions of the movable mold (1) and the fixed mold (2).

3. The artificial alloy joint mold according to claim 1, characterized in that: A position sensor (302) is arranged on the side of the fixed mold (2), and a sensing sheet (301) matching with the position sensor (302) is arranged on the side of the fixed mold (2).

4. The artificial alloy joint mold according to claim 3, characterized in that: The position sensors (302) are arranged on a fixed block and at least two of them are arranged therein, and the fixed block is bolted to the fixed mold (2).

5. The artificial alloy joint mold according to claim 3, characterized in that: The sensing piece (301) is bolted to the movable mold (1) via a connecting plate, and the sensing piece (301) is U-shaped and installed sideways.

Images