Primary-secondary claw for multi-point lathe
By designing a multi-point lathe with male and female jaws, and using "+" or "I" blocks for connection to achieve rapid positioning, the problem of time-consuming and labor-intensive jaw replacement is solved, enabling efficient processing of various workpiece models and reducing resource waste and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-24
AI Technical Summary
The existing chucks need to be changed frequently on CNC lathes, which is time-consuming and labor-intensive. Moreover, each chuck can only correspond to one type of workpiece, resulting in resource waste and increased costs.
Design a multi-point lathe jaw, including a female jaw and a female jaw, which can be quickly positioned and changed by connecting "+" blocks or "I" blocks. The female jaw can adapt to various types of workpieces.
This technology enables a single chuck to process multiple workpiece types, reducing chuck changeover time, saving space and costs, and improving processing efficiency.
Smart Images

Figure CN224026523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a clamping tool, specifically, to a male and female jaw for a multi-point lathe. Background Technology
[0002] Currently, most chucks conform to a unified national standard. During precision machining, a single set of chucks can only process one type of workpiece. When machining different types of aluminum caps on a CNC lathe, different types of chucks need to be replaced to ensure that the chucks can fully fit the outer diameter of the workpiece, so that the workpiece receives a balanced clamping force and to prevent deformation due to excessive clamping force.
[0003] The shortcomings of this operation are: 1. Changing the chuck jaws each time requires a significant amount of time. Each jaw change necessitates multiple verifications of the corresponding tooth count on the chuck / jaw, ensuring a one-to-one match between the jaw's teeth and the chuck's teeth to guarantee a tight fit between the jaw and the workpiece. Furthermore, operators are prone to errors when counting teeth, leading to wasted time and effort and reduced efficiency. 2. Each set of jaws can only correspond to one type of aluminum cap. Since there are many different aluminum cap models, a large number of existing jaws accumulate, wasting resources and space, and increasing costs. These are the inherent limitations of the existing technology. Utility Model Content
[0004] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a multi-point lathe jaw for use with a mother and daughter.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a female jaw for a multi-point lathe, including a female jaw fixed on a chuck body, a male jaw fixed on the upper part of the female jaw, a first "+" shaped groove provided on the upper surface of the female jaw, and a second "+" shaped groove provided on the lower surface of the male jaw, wherein the first "+" shaped groove and the second "+" shaped groove have the same shape.
[0006] A further improvement of this utility model is that the male claw is provided with a first countersunk hole, and the female claw is provided with a first bolt hole. The first countersunk hole and the first bolt hole are connected by a first countersunk screw to fix the female claw and the male claw.
[0007] A further improvement of this utility model is that the first cross-shaped groove and the second cross-shaped groove are connected by a cross block, the lower end of which is embedded in the first cross-shaped groove and the upper end of which is embedded in the second cross-shaped groove.
[0008] A further improvement of this utility model is that the four ends of the "+" block are respectively provided with second countersunk holes, and the female claw is provided with second bolt holes. The second countersunk holes and the second bolt holes are fixed by second countersunk screws to fix the "+" block to the female claw.
[0009] A further improvement of this utility model is that the first cross-shaped groove and the second cross-shaped groove are connected by a block, the lower end of which is embedded in the first cross-shaped groove and the upper end of which is embedded in the second cross-shaped groove.
[0010] A further improvement of this utility model is that the two ends of the "I" block are respectively provided with third countersunk holes, and the female claw is provided with third bolt holes. The third countersunk holes and the third bolt holes are fixed by third countersunk screws to fix the "I" block to the female claw.
[0011] The beneficial effects of this utility model are as follows: This utility model uses a female jaw and a male jaw to jointly form a movable chuck. The male jaw can be replaced according to the needs of the workpiece, achieving a multi-purpose effect. That is, one chuck can be used to process various types of aluminum caps, reducing the accumulation of a large number of chucks on site, saving space, and reducing costs. At the same time, this utility model, by using a cross block or a straight block, can achieve rapid positioning of the male and female jaws, enabling faster chuck replacement, reducing clamping time, and improving efficiency. Attached Figure Description
[0012] Figure 1 This is a perspective view of Example 1;
[0013] Figure 2 for Figure 1 A schematic diagram of the structure after the sergeant's claws have been removed;
[0014] Figure 3 A three-dimensional diagram of the claw;
[0015] Figure 4 This is the front view of the child claw;
[0016] Figure 5 This is a perspective view of Example 2;
[0017] Figure 6 A schematic diagram of the structure of a cross block;
[0018] Figure 7 This is a perspective view of Example 3.
[0019] In the figure, 1 is the chuck body, 2 is the female claw, 21 is the first "+" shaped groove, 22 is the first bolt hole, 3 is the female claw, 31 is the second "+" shaped groove, 32 is the first countersunk hole, 4 is the "+" block, 41 is the second countersunk hole, 5 is the "-" block, and 51 is the third countersunk hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:
[0021] Example 1: As Figure 1-4 As shown, a multi-point lathe jaw includes a female jaw 2 fixed on a chuck body 1, a male jaw 3 fixed on the upper part of the female jaw 2, a first cross-shaped groove 21 provided on the upper surface of the female jaw 2, and a second cross-shaped groove 31 provided on the lower surface of the male jaw 3. The first cross-shaped groove 21 and the second cross-shaped groove 31 have the same shape.
[0022] This application uses the chuck body of the SAMCHULLY hollow hydraulic chuck from South Korea, which is existing technology, and its working principle will not be elaborated here. The male and female jaws in this application constitute movable jaws and are used in conjunction with the chuck body 1 to clamp the workpiece.
[0023] The jaw assembly includes a female jaw 3 and a female jaw 2, and one female jaw 2 can be paired with multiple female jaws 3. The female jaws 3 can be replaced according to the requirements of the workpiece.
[0024] In this application, one sub-claw 3 can simultaneously accommodate three types of aluminum caps. Therefore, during processing, the number of chucks is reduced by 2 / 3 at a time, which reduces storage space, lowers costs, and facilitates on-site management.
[0025] The male claw 3 is provided with a first countersunk hole 32, and the female claw 2 is provided with a first bolt hole 22. The first countersunk hole 32 and the first bolt hole 22 are connected by a first countersunk screw to fix the female claw 2 and the male claw 3.
[0026] Example 2: Figure 5 and 6As shown, in order to enable quick positioning of the male claw 3 and the female claw 2 and to make it easier and faster to replace the male claw 3, the first cross-shaped groove 21 and the second cross-shaped groove 31 are connected by a cross block 4. The lower end of the cross block 4 is embedded in the first cross-shaped groove 21, and the upper end of the cross block 4 is embedded in the second cross-shaped groove 31. The positioning of the male claw 3 and the female claw 2 is achieved through the cross block 4, which reduces installation time, improves efficiency, and forms a unified standard.
[0027] Specifically, the four ends of the cross block 4 are respectively provided with second countersunk holes 41, and the female claw 2 is provided with second bolt holes. The second countersunk holes 41 and the second bolt holes are fixed by second countersunk screws to fix the cross block 4 and the female claw 2.
[0028] Example 3: Unlike Example 2, as follows... Figure 7 As shown, the first cross-shaped groove 21 and the second cross-shaped groove 31 are connected by a straight block 5. The lower end of the straight block 5 is embedded in the first cross-shaped groove 21, and the upper end of the straight block 5 is embedded in the second cross-shaped groove 31. The straight block 5 is used to position the male claw 3 and the female claw 2, reducing installation time, improving efficiency, and forming a unified standard.
[0029] The two ends of the "I" block 5 are respectively provided with third countersunk holes 51, and the female claw 2 is provided with third bolt holes. The third countersunk holes 51 and the third bolt holes are fixed by third countersunk screws to fix the "I" block to the female claw.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-point lathe sub-main jaw characterized in that, The female jaw fixed on the chuck body, the upper part of the female jaw is fixed with the male jaw, the upper surface of the female jaw is provided with the first "cross" groove, the lower surface of the male jaw is provided with the second "cross" groove, the shape of the first "cross" groove is same with the second "cross" groove.
2. The multiple point turning attachment as claimed in claim 1 wherein, The first sink hole is arranged on the male jaw, the first bolt hole is arranged on the female jaw, the first sink hole and the first bolt hole are connected through the first sink screw, which is used for fixing the female jaw and the male jaw.
3. The multiple point turning attachment as claimed in claim 2 wherein, The first "cross" groove and the second "cross" groove are connected through the "cross" block, the lower end of the "cross" block is embedded into the first "cross" groove, and the upper end of the "cross" block is embedded into the second "cross" groove.
4. The multiple point turning attachment as claimed in claim 3, wherein, The four ends of the "cross" block are respectively provided with the second sink hole, the second bolt hole is arranged on the female jaw, the second sink hole and the second bolt hole are fixed through the second sink screw, which is used for fixing the "cross" block and the female jaw.
5. The multiple point position tool holder for a lathe as set forth in claim 2, wherein The first "cross" groove and the second "cross" groove are connected through the "cross" block, the lower end of the "cross" block is embedded into the first "cross" groove, and the upper end of the "cross" block is embedded into the second "cross" groove.
6. The multiple point turning sub-main jaw for a lathe according to claim 5, wherein The two ends of the "cross" block are respectively provided with the third sink hole, the third bolt hole is arranged on the female jaw, the third sink hole and the third bolt hole are fixed through the third sink screw, which is used for fixing the "cross" block and the female jaw.