Chuck automatic claw repairer
Patent Information
- Application Number
- CN202522616848.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-10
AI Technical Summary
这类修爪器存在安装使用麻烦、需要频繁拆装、使用效率低等缺点,而且只能适用某些特定尺寸的卡盘使用,无法实现通用
[0010]本实用新型与现有技术相比的优点在于:在弹簧一、弹簧二的回缩力作用下,活塞在圆筒内朝锥头三滑动,锥头二推挤每个锥头一,使每个滑柱同时向外推动液压卡盘的硬爪,从而消除硬爪与卡盘夹持槽之间的间隙,达到修正卡盘硬爪位置的效果。由于活塞有一定的活动范围,因此适用于多种不同尺寸的卡盘使用且对硬爪的修正效果可以长久。本修爪器,一次安装即可长久作用,无需频繁拆卸,滑柱自动无级调节修正作用,可实现快速高效修爪。
Smart Images

Figure CN224895789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automatic chuck jaw repairers, specifically an automatic chuck jaw repairer. Background Technology
[0002] Hydraulic chucks are commonly used clamping tools in lathe machining. Hydraulic chucks typically have several hard jaws that can move radially along the chuck, each connected to a soft jaw used to hold the workpiece. Over time, wear and tear can create gaps between the hard jaws and the chuck, leading to errors in the clamping of the soft jaws and the workpiece, ultimately affecting the workpiece machining accuracy.
[0003] In the prior art, to eliminate this error, the commonly used jaw trimmer is the guide disc type jaw trimmer disclosed in Chinese invention publication number CN220480268U. This type of jaw trimmer has disadvantages such as troublesome installation and use, the need for frequent disassembly and assembly, and low efficiency. Moreover, it can only be used with certain specific sizes of chucks and cannot achieve universality. Utility Model Content
[0004] The purpose of this invention is to provide an automatic chuck jaw repair device to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model discloses an automatic chuck claw repair device, which includes an outer end cap, a cylinder, and an inner plug. The outer end cap and the inner plug are fixed to both ends of the cylinder. The outer end cap is provided with a rotatable screw that extends into the cylinder. The cylinder is provided with several radially sliding columns near the outer end cap. The inner end of each column is provided with a fixed cone head. A piston is provided inside the cylinder. The piston is threadedly connected to the screw. The cone head of the piston is in a pressing fit with the cone head.
[0007] The screw is equipped with a fixed spring 1, which is pressed against the cone head 2. The sliding column is equipped with a spring 2, which is pressed against the cone head 1 and the cylinder at both ends.
[0008] As an improvement, the cone-shaped head of the screw is rotatably connected to the outer end cap.
[0009] As an improvement, the diameter of the cone head is larger than the diameter of the sliding column.
[0010] The advantages of this invention compared to existing technologies are as follows: Under the recoil force of springs one and two, the piston slides towards cone three within the cylinder. Cone two pushes each cone one, causing each sliding column to simultaneously push the hard jaws of the hydraulic chuck outwards, thereby eliminating the gap between the hard jaws and the chuck clamping groove, achieving the effect of correcting the position of the chuck's hard jaws. Because the piston has a certain range of motion, it is suitable for use with chucks of various sizes, and the correction effect on the hard jaws is long-lasting. This jaw corrector can be used for a long time after a single installation, without frequent disassembly. The sliding column automatically and steplessly adjusts the correction function, enabling fast and efficient jaw correction. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings listed below are only some structural schematic diagrams of this utility model, and not all of them.
[0012] Figure 1 This is a schematic diagram of the structure of an automatic chuck claw repairer according to the present invention.
[0013] Figure label:
[0014] 1. Outer end cap; 2. Cylinder; 3. Inner plug; 4. Screw; 41. Spring 1; 42. Cone 3; 5. Sliding column; 51. Cone 1; 52. Spring 2; 6. Piston; 61. Cone 2. Detailed Implementation
[0015] 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.
[0016] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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.
[0017] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be perfectly horizontal, but can be slightly tilted.
[0018] In the description of the embodiments of this utility model, the terms "multiple" or "several" refer to at least two.
[0019] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0020] This embodiment is combined with the appendix Figure 1 This paper provides a detailed description of an automatic chuck jaw trimmer.
[0021] This embodiment discloses an automatic chuck claw trimmer, which includes an outer end cap 1, a cylinder 2, and an inner plug 3. The outer end cap 1 and the inner plug 3 are fixed to both ends of the cylinder 2. The outer end cap 1 is fixed to the cylinder 2 as a whole, and the inner plug 3 is fixed by bolts or other connecting parts. The outer end cap 1 is provided with a rotatable screw 4, which extends into the cylinder 2. The cylinder 2 is provided with several radially sliding pins 5 near the outer end cap 1. The pins 5 slide through holes in the cylinder 2. The inner end of each pin 5 is provided with a fixed cone head 51. The cylinder 2 is provided with a piston 6, which is threadedly connected to the screw 4. The relative position of the piston 6 is adjustable. The cone head 61 of the piston 6 is in a pressing fit with the cone head 51.
[0022] The screw 4 is equipped with a fixed spring 41, which presses against the cone head 61, and the spring 41 is fixedly connected to the screw 4 and the cone head 61. Figure 1 The first spring 41 expands, and the sliding column 5 is provided with a second spring 52. The two ends of the second spring 52 are pressed against the first cone head 51 and the cylinder 2, and the two ends of the second spring 52 are fixedly connected. Figure 1 The middle spring 252 expands.
[0023] The conical head 42 of the screw 4 is rotatably connected to the outer end cap 1. It can rotate freely, and the spring 41 is fixedly connected to the rear end of the conical head 42.
[0024] The diameter of the cone-51 is larger than the diameter of the sliding column 5.
[0025] In practical implementation, this jaw adjuster is installed at the end of the CNC lathe spindle and the center of the hydraulic chuck. The hydraulic chuck is typically equipped with several hard jaws that can move radially along the chuck. The outer ends of the hard jaws are connected to soft jaws used to clamp the workpiece, and the inner ends of the hard jaws contact and press against the sliding pins 5. When the hard jaws need to release the corresponding sliding pins 5, under the recoil force of spring 1 41 and spring 2 52, piston 6 slides towards cone 3 42 inside cylinder 2. Cone 2 61 pushes each cone 1 51, causing each sliding pin 5 to simultaneously push the hard jaws of the hydraulic chuck outward, thereby eliminating the gap between the hard jaws and the chuck clamping slots, achieving the effect of correcting the position of the chuck's hard jaws. Because piston 6 has a certain range of motion, it is suitable for use with chucks of various sizes, and the correction effect on the hard jaws is long-lasting.
[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the actual scope of protection is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.
Claims
1. An automatic chuck jaw trimmer, characterized in that, The claw trimmer includes an outer end cap (1), a cylinder (2), and an inner plug (3). The outer end cap (1) and the inner plug (3) are fixed to both ends of the cylinder (2). The outer end cap (1) is provided with a rotatable screw (4). The screw (4) extends into the cylinder (2). The cylinder (2) is provided with several radially sliding columns (5) near the outer end cap (1). The inner end of the sliding column (5) is provided with a fixed cone head (51). The cylinder (2) is provided with a piston (6). The piston (6) is threadedly connected to the screw (4). The cone head (61) of the piston (6) is pressed and engaged with the cone head (51). The screw (4) is provided with a fixed spring (41), which is pressed against the cone (61). The sliding column (5) is provided with a spring (52), which is pressed against the cone (51) and the cylinder (2) at both ends.
2. The automatic chuck jaw trimmer according to claim 1, characterized in that, The cone head (42) of the screw (4) is rotatably connected to the outer end cap (1).
3. The automatic chuck jaw trimmer according to claim 1, characterized in that, The diameter of the cone (51) is greater than the diameter of the sliding column (5).
Citation Information
Patent Citations
Claw repairing device
CN220480268U