Quick tool change positioning mechanism for an automated CNC machine tool

By designing limiting and connecting components, the problem of unstable installation and quick disassembly of CNC machine tool tools is solved, enabling stable installation and quick tool replacement, and improving the efficiency of CNC machine tool use.

CN224373493UActive Publication Date: 2026-06-19JIANGSU HOT WING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HOT WING TECH CO LTD
Filing Date
2025-09-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing automatic tool changers for CNC machine tools are not convenient for stable tool installation and quick tool removal and replacement, making operation cumbersome and affecting utilization.

Method used

The tool is installed by using a combination of limiting components and connecting components. The tool is stably installed and quickly disassembled through a dual limiting structure of manual pull rod and positioning ball. This includes the sliding connection between the positioning connecting block on the outside of the manual pull rod and the first spring, as well as the engaging and sliding design between the positioning ball and the machining tool post.

Benefits of technology

It enables stable installation and quick removal of cutting tools, facilitating tool replacement and improving the efficiency of CNC machine tools.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to automatic CNC machine tool technical field, specifically disclose a quick tool changing positioning mechanism of automatic CNC machine tool, include: the interface installation shell and set up on the interface installation shell connection top shell, the bottom of interface installation shell is equipped with tool connector, and the outside of tool connector is provided with the interface disc, still include: the top of connection top shell is connected with the connection installation axle body, the inside of interface installation shell is equipped with first limit slot, and the inside connection of first limit slot has processing tool post, and the outside of processing tool post is provided with positioning lug, the top of processing tool post is equipped with second limit slot, the bottom of processing tool post is provided with interface subassembly. The quick tool changing positioning mechanism of automatic CNC machine tool, through the cooperation and installation of limiting component and interface subassembly, can install the steady tool, and simultaneously, the tool is conveniently and quickly disassembled.
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Description

Technical Field

[0001] This utility model relates to the field of automated CNC machine tool technology, specifically a quick tool change positioning mechanism for automated CNC machine tools. Background Technology

[0002] The quick tool change and positioning mechanism of a CNC machine tool is a core auxiliary device, mainly used to achieve rapid tool changing and precise positioning. It is a technology that uses the CNC system to control the tool magazine and tool changing device to achieve rapid tool changing, which can significantly shorten tool changing time and improve machining efficiency.

[0003] Existing quick tool change positioning mechanisms for CNC machine tools limit the position of the tool on the CNC machine tool, enabling the tool to be stably connected to the CNC machine tool. For example:

[0004] The announcement number CN217122557U provides an automatic tool changer for CNC machine tools, which solves the problem that existing tool changers cannot automatically load and unload tools during tool changes. The lower end of the main body of the tool changing device is equipped with a hydraulic telescopic column. A fixed base is mounted on the outer surface of the hydraulic telescopic column. Four tightening hydraulic telescopic bases are mounted on the lower end of the fixed base. Four tightening hydraulic telescopic bases are mounted on the lower end of each tightening hydraulic telescopic base. A tightening closed loop is mounted on the lower end of each tightening hydraulic rod. Four slide rails are mounted on the outer surface of the hydraulic telescopic column. Eight closing soft modules are mounted on the lower end of the hydraulic telescopic column. Eight rubber anti-slip pads are mounted on one side of each closing soft module. A tool holder insertion hole is mounted on the lower end of the hydraulic telescopic column. An electrostatic sensor is installed inside the hydraulic telescopic column.

[0005] The existing technical solutions have the following drawbacks: the existing automatic tool changer of CNC machine tools is not convenient for stable tool installation and quick tool removal and replacement, and the operation is cumbersome, which affects the utilization rate. Therefore, this utility model provides a quick tool change positioning mechanism for automated CNC machine tools to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this utility model is to provide a quick tool change positioning mechanism for automated CNC machine tools, so as to solve the problems mentioned in the background art, that the existing automatic tool changer of CNC machine tools is not convenient for stable tool installation and quick tool disassembly and replacement, and the operation is cumbersome, which affects the utilization rate.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick tool change positioning mechanism for an automated CNC machine tool, comprising: a connecting mounting housing and a connecting top housing disposed on the connecting mounting housing, wherein a tool connector is mounted on the bottom of the connecting mounting housing, and a connecting disc is disposed on the outer side of the tool connector, and further comprising:

[0008] The top of the connecting top shell is connected to a connecting mounting shaft. The interior of the connecting mounting shell is provided with a first limiting groove, and a machining tool post is connected inside the first limiting groove. A positioning protrusion is provided on the outer side of the machining tool post. The top of the machining tool post is provided with a second limiting groove, and a connecting component is provided at the bottom of the machining tool post. A limiting component is provided on the outer side of the connecting top shell.

[0009] As a preferred embodiment of this utility model, the connecting top shell is engaged with the machining tool post through a first limiting groove.

[0010] As a preferred embodiment of this utility model, the positioning protrusion is symmetrically arranged about the central axis of the machining tool post.

[0011] As a preferred embodiment of this utility model, the outer surface of the connecting disc is provided with a raised structure at equal angles.

[0012] As a preferred embodiment of the present invention, the limiting component includes a manual pull rod disposed within the connecting top shell, and a positioning connecting block is fixed to the outer side of the manual pull rod, and a first spring is nested on the outer surface of the manual pull rod.

[0013] As a preferred technical solution of this utility model, the manual pull rod is connected to the connecting mounting housing in a sliding manner through the first spring, and the manual pull rod is engaged with the machining tool column.

[0014] As a preferred technical solution of this utility model, the connecting component includes a third limiting groove formed at the bottom of the connecting mounting housing, and a second spring is provided inside the third limiting groove, and a positioning ball is connected to the inner side of the second spring.

[0015] As a preferred embodiment of this utility model, the positioning ball and the machining tool column are connected by a snap-fit ​​mechanism, and the positioning ball and the connecting mounting housing are slidably disposed.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the quick tool change positioning mechanism of this automated CNC machine tool, through the cooperation of the limiting component and the connecting component, can stably install the tool and facilitate quick disassembly of the tool;

[0017] A positioning connecting block is fixed to the outside of the manual pull rod, and a first spring is nested on the outer surface of the manual pull rod. When the manual pull rod is engaged with the inside of the second limiting groove, the machining tool column is stably engaged with the inside of the connecting mounting housing. When the machining tool column is engaged with the connecting mounting housing, the second spring is compressed, causing the positioning ball to engage with the bottom of the machining tool column. By using the manual pull rod and the positioning ball to double limit the top and bottom of the machining tool column, the stability of the installation is increased.

[0018] The first spring is slidably connected to the connecting housing, and the manual pull rod is engaged with the machining tool post. By pulling the manual pull rod outward, the blocking of the positioning connecting block compresses the first spring, causing the manual pull rod to disengage from the machining tool post, making the operation convenient.

[0019] The positioning ball is connected to the machining tool post by a snap-fit ​​mechanism. The positioning ball is slidably set with the connecting mounting housing. When the machining tool post is disengaged from the positioning ball, the second spring is compressed, which allows the machining tool post to be quickly separated from the connecting mounting housing, making it easy to replace the machining tool post. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the connection between the manual pull rod and the first spring of this utility model.

[0022] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the connection between the machining tool post and the first limiting groove of this utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the connection between the second spring and the positioning ball of this utility model.

[0024] Figure 5 This is a schematic diagram of the overall exploded structure of this utility model.

[0025] In the diagram: 1. Connecting mounting housing; 2. Connecting top shell; 3. Connecting mounting shaft; 4. Machining tool post; 5. Connecting disc; 6. Tool connector; 7. Positioning protrusion; 8. First limiting groove; 9. Second limiting groove; 10. Manual pull rod; 11. Positioning connecting block; 12. First spring; 13. Third limiting groove; 14. Second spring; 15. Positioning ball. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a quick tool change positioning mechanism for an automated CNC machine tool, including a connecting mounting housing 1, a connecting top housing 2, a connecting mounting shaft 3, a machining tool column 4, a connecting plate 5, a tool connector 6, a positioning protrusion 7, a first limiting groove 8, a second limiting groove 9, a manual pull rod 10, a positioning connecting block 11, a first spring 12, a third limiting groove 13, a second spring 14, and a positioning ball 15.

[0028] Working principle: When using the quick tool change and positioning mechanism of this automated CNC machine tool, the specific steps are as follows: Figure 1 , Figure 2 and Figure 3 In the connection mounting housing 1, a connecting top shell 2 is provided on the upper side, a tool connector 6 is installed on the bottom of the connection mounting housing 1, and a connecting plate 5 is provided on the outer side of the tool connector 6. A connecting mounting shaft 3 is connected to the top of the connecting top shell 2. By installing the connecting mounting shaft 3 onto the CNC machine tool, the tool can be installed. A first limiting groove 8 is provided inside the connection mounting housing 1, and a machining tool post 4 is connected inside the first limiting groove 8. A positioning protrusion 7 is provided on the outer side of the machining tool post 4. The positioning protrusion 7 is symmetrically arranged about the central axis of the machining tool post 4, so that the machining tool post 4 is engaged into the inside of the first limiting groove 8. A second limiting groove 9 is provided on the top of the machining tool post 4. The second limiting groove 9 is aligned with one side of the manual pull rod 10. A limiting component is provided on the outer side of the connecting top shell 2. The limiting component includes components disposed inside the connecting top shell 2. The manual pull rod 10 has a positioning connecting block 11 fixed on its outer side, and a first spring 12 is nested on the outer surface of the manual pull rod 10. When the manual pull rod 10 is engaged with the inside of the second limiting groove 9, the machining tool column 4 is stably engaged with the inside of the connecting mounting housing 1. At the same time, a connecting assembly is provided at the bottom of the machining tool column 4. The connecting assembly includes a third limiting groove 13 opened at the bottom of the connecting mounting housing 1, and a second spring 14 is provided inside the third limiting groove 13. A positioning ball 15 is connected to the inner side of the second spring 14. When the machining tool column 4 is engaged and installed in the connecting mounting housing 1, the second spring 14 is compressed, causing the positioning ball 15 to engage with the bottom of the machining tool column 4. By using the manual pull rod 10 and the positioning ball 15 to double limit the top and bottom of the machining tool column 4, the stability of the installation is increased.

[0029] Specific examples Figure 4 and Figure 5 When the tool connector 6 needs to be replaced, since the machining tool post 4, the connecting plate 5, and the tool connector 6 form an integrated structure, the connecting top shell 2 is engaged with the machining tool post 4 through the first limiting groove 8, and the manual pull rod 10 is slidably connected to the connecting mounting shell 1 through the first spring 12. The manual pull rod 10 is also engaged with the machining tool post 4. By pulling the manual pull rod 10 outward, the blocking of the positioning connecting block 11 compresses the first spring 12, causing the manual pull rod 10 to disengage from the machining tool post 4, thus connecting... The outer surface of the disk 5 is provided with raised structures at equal angles. At the same time, by holding the connecting disk 5, the machining tool column 4 is pulled down, and the positioning ball 15 is connected to the machining tool column 4 by a snap-fit ​​method. The positioning ball 15 is slidably set with the connecting mounting housing 1. At this time, the machining tool column 4 is disengaged from the positioning ball 15, and the second spring 14 is compressed. At this time, the machining tool column 4 can be quickly disengaged from the connecting mounting housing 1, which is convenient for replacing the machining tool column 4. This is the usage method of the quick tool change positioning mechanism of this automated CNC machine tool.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid tool change and positioning mechanism for an automated CNC machine tool, comprising: The assembly comprises a connecting mounting housing (1) and a connecting top shell (2) disposed on the connecting mounting housing (1). A tool connector (6) is installed at the bottom of the connecting mounting housing (1), and a connecting disc (5) is disposed on the outer side of the tool connector (6). The assembly is characterized by further comprising: a connecting mounting shaft (3) connected to the top of the connecting top shell (2); a first limiting groove (8) is opened inside the connecting mounting housing (1), and a machining tool post (4) is connected inside the first limiting groove (8). A positioning protrusion (7) is disposed on the outer side of the machining tool post (4); a second limiting groove (9) is opened at the top of the machining tool post (4); a connecting component is disposed at the bottom of the machining tool post (4); and a limiting component is disposed on the outer side of the connecting top shell (2).

2. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 1, characterized in that: The connecting top shell (2) is engaged with the machining tool column (4) through the first limiting groove (8).

3. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 1, characterized in that: The positioning protrusion (7) is symmetrically arranged about the central axis of the machining tool post (4).

4. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 1, characterized in that: The outer surface of the connecting plate (5) is provided with a raised structure at equal angles.

5. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 1, characterized in that: The limiting component includes a manual pull rod (10) disposed inside the connecting top shell (2), and a positioning connecting block (11) is fixed on the outside of the manual pull rod (10), and a first spring (12) is nested on the outer surface of the manual pull rod (10).

6. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 5, characterized in that: The manual pull rod (10) is connected to the connecting mounting housing (1) in a sliding manner through the first spring (12), and the manual pull rod (10) is engaged with the machining tool column (4).

7. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 1, characterized in that: The connecting component includes a third limiting groove (13) opened at the bottom of the connecting mounting housing (1), and a second spring (14) is provided inside the third limiting groove (13), and a positioning ball (15) is connected to the inner side of the second spring (14).

8. The rapid tool change positioning mechanism for an automated CNC machine tool according to claim 7, characterized in that: The positioning ball (15) is connected to the machining tool column (4) by a snap-fit ​​method, and the positioning ball (15) is slidably set with the connecting mounting housing (1).