Novel three-jaw chuck

Abstract

The novel three-jaw chuck comprises a chuck body, a jaw driving mechanism and a plurality of jaws, the jaw driving mechanism and the jaws are arranged in the chuck body, the chuck body is provided with a plurality of through grooves, the jaws are located in the through grooves, the top end of one side of each jaw is in an L shape, and the top end of the other side of each jaw is in an L shape. The multiple clamping jaws are arranged outwards along the circle center of the chuck body, and the L-shaped sides of the multiple clamping jaws are opposite. The clamping jaw is arranged to be L-shaped, so that the clamping jaw is tightly attached to the hexagonal head of the hexagonal bolt, and the stability of a workpiece in the machining process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hexagonal bolt and screw technology, specifically to a novel three-jaw chuck. Background Technology

[0002] In the machining of hexagonal head bolts and screws, especially when milling slotted grooves on their heads, traditional three-jaw chucks and their clamping methods have significant limitations. The traditional approach involves attaching a metal plate to the end face of one of the chuck's jaws, adjusting its position so that one face is parallel to the S-face of the hexagonal head for positioning. However, this positioning method is extremely unstable because the attached metal plate is prone to deformation or loosening during workpiece clamping and high-speed cutting, directly leading to poor symmetry of the slotted groove after machining. Furthermore, uneven workpiece clamping is also a significant cause of poor groove symmetry. For larger workpieces, if they are not adequately clamped or incorrectly positioned during machining, the symmetry problem will be even more pronounced.

[0003] Currently, the three-jaw chucks used in the market are as follows: Figure 5 As shown, its claw design does not fully take into account the special shape of hexagonal head bolts and screws, making it difficult to guarantee stability and symmetry during clamping. Utility Model Content

[0004] The present invention aims to provide a novel three-jaw chuck to solve the problem of poor symmetry of the slot head when using existing three-jaw chucks to fix hexagonal bolts and screws for machining slots.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel three-jaw chuck, including a chuck body, a jaw driving mechanism disposed in the chuck body, and multiple jaws. The chuck body is provided with multiple through slots, and the multiple jaws are located in the multiple through slots. The top of one side of each jaw is shaped like a "∟". The multiple jaws are arranged outward along the center of the chuck body, and the sides of the multiple jaws that are shaped like a "∟" are opposite each other.

[0006] The working principle of this utility model is as follows: First, hexagonal head bolts or screws are placed into the three-jaw chuck body. Then, the S-face of the hexagonal head is parallel to the S-faces on the multiple jaws. Then, the jaw drive mechanism is driven to lock the chuck body. At the same time as clamping the rod, the S-face on the chuck body is exactly tangent to the S-face of the product, thereby achieving the effect of clamping and positioning stability and ensuring the consistency of symmetry of the product during the processing of the slot.

[0007] The beneficial effects of this utility model are as follows: 1. By designing the "∟" shape of the chuck jaws to fit snugly against the hexagonal head of the hexagonal bolt, this utility model ensures the stability of the workpiece during processing and effectively solves the problem of poor symmetry of the slotted head after processing caused by deformation or loosening of the attached iron sheet in traditional methods. This not only improves the processing accuracy of the product but also ensures the stability and consistency of the product performance. 2. The "∟" shape design of the chuck jaws improves the clamping force of the chuck jaws on the hexagonal bolt. This design allows the workpiece to be clamped more stably during processing, avoiding processing errors caused by unstable workpiece clamping. 3. The chuck jaw design of this utility model has wide applicability and can adapt to hexagonal bolts of various sizes. By changing different sized chuck jaws, different specifications of workpieces can be processed, thereby reducing the amount of scrap during machine adjustments and improving production efficiency and economic benefits. 4. The structural design of this utility model is simple and clear, easy to implement and maintain.

[0008] Furthermore, the spacing between the multiple jaws is the same, allowing them to better grip the hexagonal bolts and screws.

[0009] Furthermore, the "∟" part of the clamping claw mates with the hexagonal head of the hexagonal bolt. The size of the "∟" part of the clamping claw ensures that the hexagonal head of the hexagonal bolt fits snugly against the clamping claw, further enhancing the fixation of the hexagonal bolt.

[0010] Furthermore, each of the claws has multiple grooves on one side, located at the bottom of the "∟" shape of the claw. The presence of these grooves increases the coefficient of friction between the claw and the hexagonal bolt, thereby improving the gripping tightness of the claw on the hexagonal bolt.

[0011] Furthermore, the width of the jaws does not exceed the side length of the hexagonal head of the hexagonal bolt. By limiting the width of the jaws, they can accommodate hexagonal bolts of various sizes.

[0012] Furthermore, limiting strips are provided on both sides of the bottom end of the through groove, and limiting grooves adapted to the limiting strips are provided on both sides of the bottom end of the claw. The limiting strips allow the claw to move within the same plane. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a novel three-jaw chuck according to the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of a novel three-jaw chuck according to the present invention;

[0015] Figure 3 for Figure 1 Top view;

[0016] Figure 4 for Figure 1Schematic diagram of the middle chuck claw;

[0017] Figure 5 This is a schematic diagram of the structure of a conventional three-jaw chuck. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The reference numerals in the accompanying drawings include: chuck body 1, limit bar 101, hex bolt 2, chuck claw 3, and chuck claw drive mechanism 4.

[0020] The basic implementation examples are as follows: Figure 1 As shown: A novel three-jaw chuck includes a chuck body 1, a jaw drive mechanism 4 disposed within the chuck body 1, and three jaws 3. The chuck body 1 has three through slots with equal spacing between them. Limiting strips 101 are fixedly connected to both sides of the bottom end of the through slots. Limiting grooves adapted to the limiting strips 101 are provided on both sides of the bottom end of the jaws 3. The jaws 3 are slidably connected to the through slots through two limiting grooves. The top of the centripetal end of the jaws 3 is shaped like a "∟". The "∟" part of the jaws 3 fits against the hexagonal head of the hexagonal bolt 2. The width of the jaws 3 does not exceed the side length of the hexagonal head of the hexagonal bolt 2. Six grooves are provided on the centripetal side of each jaw 3. The six grooves are located at the bottom end of the "∟" shape of the jaws 3.

[0021] The specific implementation process is as follows: First, put the hexagonal head bolt or screw into the three-jaw chuck body 1. Then, align the S-face of the hexagonal head bolt or screw with the S-face of the three jaws 3. Then, drive the jaw drive mechanism 4 to lock the chuck body 1. At the same time as clamping the rod, the S-face of the chuck body 1 is exactly tangent to the S-face of the product, thereby achieving the effect of clamping and positioning stability and ensuring the symmetry consistency of the product during the processing of the slot.

[0022] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A novel three-jaw chuck, comprising a chuck body, a jaw drive mechanism disposed within the chuck body, and multiple jaws, wherein the chuck body has multiple through slots, and the multiple jaws are located within the multiple through slots, characterized in that: The top of one side of the claw is shaped like a "∟". Multiple claws are arranged outward along the center of the chuck body, with the sides of the multiple claws that are shaped like a "∟" facing each other.

2. The novel three-jaw chuck according to claim 1, characterized in that: The spacing between the multiple jaws is the same.

3. A novel three-jaw chuck according to claim 2, characterized in that: The "∟" part of the claw fits into the hexagonal head of the hexagonal bolt.

4. A novel three-jaw chuck according to claim 3, characterized in that: Each of the claws has multiple grooves on one side, and these grooves are located at the bottom of the "∟" shape of the claw.

5. A novel three-jaw chuck according to claim 4, characterized in that: The width of the chuck does not exceed the side length of the hexagonal head of the hexagonal bolt.

6. A novel three-jaw chuck according to claim 5, characterized in that: The bottom of the through groove is provided with limiting strips on both sides, and the bottom of the claw is provided with limiting grooves that are adapted to the limiting strips on both sides.

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