Cobalt-based alloy bar size machining control device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANYANG ZHENGKAI NEW MATERIALS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
Smart Images
Figure CN224273352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cobalt-based alloy bar processing, specifically a cobalt-based alloy bar size processing control device. Background Technology
[0002] A three-jaw chuck is a machine tool accessory that clamps a workpiece by radially moving three movable jaws. It is mainly used for positioning and fixing round bar-shaped workpieces. Its core structure includes: a chuck body, which serves as a base and is connected to the machine tool spindle, with a tapered hole inside to transmit torque; movable jaws, which are three evenly distributed jaws that mesh with a planar thread to achieve synchronous radial movement; and a drive mechanism, which is usually a combination of a small bevel gear and a large bevel gear. A wrench is used to rotate the jaws to clamp or release the workpiece. The three-jaw chuck utilizes a self-centering function, using the rotating drive gear to drive the planar thread, causing the three jaws to synchronously approach or separate, automatically centering the workpiece. Its clamping force comes from the mechanical transmission of the threaded meshing, and it features simple operation and high efficiency.
[0003] In existing three-jaw chucks, the chuck jaws are rotated by turning a T-wrench to rotate the spiral groove and install the jaws, thus clamping the bar stock to be processed. However, for bars of different lengths, the jaws need to be changed frequently to achieve a better clamping effect. Changing the jaws takes up a lot of the operator's time, thus reducing the operator's work efficiency. The inventor urgently needs to design a jaw that can meet the processing needs of bars of different sizes, so as to save the time of changing the jaws and speed up the work. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a cobalt-based alloy bar size processing control device to solve the technical problem that traditional processing devices require frequent replacement of chucks.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cobalt-based alloy bar size processing control device, comprising a chuck body, three evenly distributed wrench insertion square holes on the outer ring of the chuck body, a rotatable spiral groove inside the chuck body, three evenly distributed main jaws at the front of the chuck body, a sliding groove on the inner side of the main jaws, a secondary jaw slidably mounted on the sliding groove, a screw threaded on the inner side of the secondary jaws, and the end of the screw rotatably connected to the main jaws via a thrust bearing.
[0006] By adopting the above technical solution, the screw and the auxiliary jaw are configured such that rotating the screw adjusts the position of the auxiliary jaw, thereby extending the clamping area. This solves the problem of frequently changing jaws when processing bars of different sizes, and significantly improves the user's work efficiency.
[0007] Furthermore, a T-shaped wrench is provided on the outer periphery of the chuck body. The T-shaped wrench drives the main jaw to move through an internal drive mechanism for clamping the bar.
[0008] By adopting the above technical solution, the T-shaped wrench can be used to install and remove the jaws on the chuck, which is more labor-saving and convenient for users.
[0009] Furthermore, the secondary jaws allow for dynamic adjustment of the clamping boundaries when clamping cobalt-based alloy bars, thus achieving compatibility with workpieces of different sizes.
[0010] By adopting the above technical solution, an auxiliary jaw is added on the basis of the original main jaw, which extends the area for fixing the bar, making the processed bar more firmly fixed and more stable during high-speed rotation.
[0011] Furthermore, the secondary jaw is helically connected to the screw, converting the rotational motion of the screw into the linear motion of the secondary jaw.
[0012] By adopting the above technical solution, the position of the secondary jaws can be adjusted by using an Allen wrench. When processing bars of different sizes, it is not necessary to replace the jaws of the chuck; only the position of the secondary jaws needs to be adjusted, thus improving work efficiency.
[0013] Furthermore, the slide groove and the secondary jaw are in an overfitting configuration, with the slide groove restricting the position of the secondary jaw.
[0014] By adopting the above technical solution, the setting of the slide groove provides a reasonable placement space for the secondary jaws, which will not affect normal processing, and the setting of the thrust bearing ensures that the position of the screw will not change.
[0015] Furthermore, the thrust bearing is used to limit the axial movement of the screw.
[0016] By adopting the above technical solution, the position of the screw is reinforced, while ensuring the stable connection of the secondary jaws, reducing the shaking of the jaws during processing, and making the bar material that is rotating at high speed more stable.
[0017] Furthermore, the outer side of the main jaw is provided with a support platform for supporting the inner tube and adapting to the processing requirements of the bar.
[0018] By adopting the above technical solution, the chuck can also be used to process other workpieces that require support, increasing the chuck's versatility and improving the user's work efficiency.
[0019] In summary, the present invention has the following main advantages:
[0020] 1. This utility model increases the clamping area of the bar material by designing a secondary jaw. Compared with a chuck with only one main jaw, the clamping of the workpiece is more stable, reducing the jumping of bar-shaped workpieces during high-speed rotation. This stability also increases safety and reduces the occurrence of accidents.
[0021] 2. This utility model, through the design of the screw and thrust bearing, allows for convenient adjustment of the position of the secondary jaws. By adjusting the secondary jaws to different positions for bars of different lengths, the number of times the jaws need to be replaced is reduced, effectively improving work efficiency and saving more time and effort. Attached Figure Description
[0022] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0025] In the diagram: 1. T-shaped wrench; 2. Chuck body; 3. Wrench insertion square hole; 4. Main jaw; 5. Secondary jaw; 601. Screw; 602. Thrust bearing; 603. Slide groove; 7. Support platform; 8. Spiral groove. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0027] In this embodiment:
[0028] A device for controlling the dimensional processing of cobalt-based alloy bars, such as Figure 1-3As shown, the chuck body 2 includes three evenly distributed wrench insertion square holes 3 on its outer ring. The chuck body 2 has a rotatable spiral groove 8 inside. Three evenly distributed main jaws 4 are located at the front of the chuck body 2. A sliding groove 603 is provided on the inner side of each main jaw 4, and a secondary jaw 5 is slidably mounted on the sliding groove 603. A screw 601 is threaded onto the inner side of each secondary jaw 5. The end of the screw 601 is rotatably connected to the main jaw 4 via a thrust bearing 602. The screw 601 and secondary jaw 5 are designed to extend the clamping area by rotating the screw 601 to adjust the position of the secondary jaw 5. This solves the problem of frequently changing jaws when processing bars of different sizes, significantly improving user efficiency, reducing jaw wear, and achieving comprehensive advantages such as rapid adaptation to multi-size workpieces, improved clamping stability, optimized operation convenience, and reduced maintenance costs.
[0029] See Figure 1 , Figure 2 A T-shaped wrench 1 is provided on the outer periphery of the chuck body 2. The T-shaped wrench 1 drives the main jaw 4 to move through the internal drive mechanism for clamping the bar. Using the T-shaped wrench 1 to install and remove the jaws on the chuck can save more effort and make it more convenient for users to work. It greatly reduces the operating force required when installing and removing the jaws and reduces the physical exertion of users.
[0030] See Figure 1 , Figure 2 The secondary jaw 5 is designed to dynamically adjust the clamping boundary when clamping cobalt-based alloy bars, achieving compatibility with workpieces of different sizes. Based on the original main jaw 4, the secondary jaw 5 is added, which extends the area for fixing the bar, making the processed bar more firmly fixed and more stable during high-speed rotation. It specifically solves the pain points of "unsecured clamping, easy deformation, rapid wear, and troublesome jaw replacement" in high-speed machining of cobalt-based alloy bars, making it more practical and comprehensive.
[0031] See Figure 1 , Figure 2 , Figure 3 The secondary jaw 5 is helically connected to the screw 601, converting the rotational motion of the screw 601 into the linear motion of the secondary jaw 5. When processing bars of different sizes, it is not necessary to change the jaws of the chuck; only the position of the secondary jaw needs to be adjusted, which speeds up the work efficiency and eliminates the need for frequent jaw replacements. This also avoids jaw wear, parts loss, and replacement costs such as the purchase of spare jaws caused by repeated disassembly and assembly, while reducing the generation of scrap parts, thus meeting the production requirements of cost reduction and efficiency improvement.
[0032] See Figure 1 , Figure 2 , Figure 3The slide groove 603 and the secondary jaw 5 are in a transitional fit. The slide groove 603 restricts the position of the secondary jaw 5. The setting of the slide groove 603 provides a reasonable placement space for the secondary jaw 5, which will not affect the normal processing. At the same time, it solves the pain points of easy interference during installation of the secondary jaw, limited processing area, easy deformation during clamping, and high maintenance costs.
[0033] See Figure 1 , Figure 2 , Figure 3 The thrust bearing 602 is used to limit the axial movement of the screw 601, reinforce the position of the screw 601, ensure the stable connection of the secondary chuck 5, reduce the chuck wobbling during processing, and make the bar material rotating at high speed more stable. At the same time, the inner ring of the thrust bearing 602 is interference-fitted with the outer diameter of the screw 601, and the outer ring is clearance-fitted with the mounting hole of the slide groove 603, which limits the radial runout of the screw, ensures the straightness of the secondary chuck 5 when moving axially, and avoids the clamping position deviation caused by the screw skew.
[0034] See Figure 1 , Figure 2 The outer side of the main jaw 4 is provided with a support platform 7, which is used to support the tube and adapt to the processing requirements of the bar. When processing other workpieces that require support, the jaw can also be used to process them, which increases the versatility of the jaw and speeds up the user's work efficiency. At the same time, the radial position of the support platform 7 and the clamping point of the main jaw 4 are designed in coordination to form a "clamping-support" mechanical balance, which reduces the radial runout of the workpiece when rotating at high speed and ensures the concentricity of the hole and the outer circle.
[0035] The implementation principle of this embodiment is as follows: Three wrench insertion square holes 3 are evenly arranged on the outer ring of the three-jaw chuck body 2. T-shaped wrench 1 is inserted into the square hole and rotates the spiral groove 8 to adjust the position of the main jaw 4, clamping the cobalt-based alloy bar to be machined. A secondary jaw 5 is arranged in front of the main jaw 4. A screw 601 is arranged on the inner thread of the secondary jaw 5. The secondary jaw 5 and the screw 601 are threadedly connected. A thrust bearing 602 is arranged on the sliding groove 603 in front of the main jaw 4. The screw 601 and the thrust bearing 602 are rotatably connected to ensure that the position of the screw 601 will not move. By rotating the screw 601, the position of the secondary jaw 5 will move up and down to achieve the purpose of processing bars of different lengths.
[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A device for controlling the dimensional processing of cobalt-based alloy bars, characterized in that: The chuck body (2) includes a chuck body (2) with three evenly distributed wrench insertion square holes (3) on the outer ring of the chuck body (2). The chuck body (2) has a rotatable spiral groove (8) inside. The chuck body (2) has three evenly distributed main jaws (4) at the front. The main jaws (4) have a sliding groove (603) on their inner side. The sliding groove (603) has a secondary jaw (5) slidably mounted on it. The secondary jaws (5) have a screw (601) threaded on their inner side. The end of the screw (601) is rotatably connected to the main jaws (4) through a thrust bearing (602).
2. The cobalt-based alloy bar dimension processing control device according to claim 1, characterized in that: The outer periphery of the chuck body (2) is fitted with a T-shaped wrench (1), which drives the main jaw (4) to move through an internal drive mechanism for clamping the bar.
3. The cobalt-based alloy bar dimension processing control device according to claim 1, characterized in that: The sub-claw (5) is designed to dynamically adjust the clamping boundary when clamping cobalt-based alloy bars, thereby achieving compatibility with workpieces of different sizes.
4. The cobalt-based alloy bar dimension processing control device according to claim 1, characterized in that: The secondary jaw (5) is helically connected to the screw (601), converting the rotational motion of the screw (601) into the linear motion of the secondary jaw (5).
5. The cobalt-based alloy bar dimension processing control device according to claim 1, characterized in that: The slide groove (603) and the secondary claw (5) are overfitted together, and the slide groove (603) restricts the position of the secondary claw (5).
6. The cobalt-based alloy bar dimension processing control device according to claim 5, characterized in that: The thrust bearing (602) is used to limit the axial movement of the screw (601).
7. The cobalt-based alloy bar dimension processing control device according to claim 1, characterized in that: The outer side of the main jaw (4) is provided with a support platform (7) for supporting the inner part of the pipe and for adapting to the processing requirements of the bar.