Quick positioning mechanism for tool changing of numerical control machine tool

Abstract

The utility model relates to numerical control machine tool technical field, concretely is a kind of quick positioning mechanism for numerical control machine tool tool replacement, including tool, quick positioning assembly, auxiliary dismounting component and cooling component, seat two is arranged at the top end of tool holder one, guide plate is installed in tool holder one inner wall, base is located at tool holder one bottom end, support is installed in tool holder one one end, connecting column is set in support inside, locating slot is set up in the middle part of connecting column, the utility model is positioned and stably fixed to the cooperation of guide plate and fixed column in quick positioning assembly in tool, the positioning precision and efficiency of tool replacement are effectively improved, manual operation error is reduced, and the product quality of subsequent processing is guaranteed.

Description

Technical Field

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

[0002] In CNC machine tool processing, tool replacement is often required to meet different processing needs. In the prior art, the device disclosed in Chinese Patent Publication No. CN202222725013.8 sets up a mounting base with a mounting groove and a sliding groove on the mounting base. The bottom end of the positioning rod slides along the mounting groove on the mounting base through the sliding groove. Then, when a new tool body is needed for turning operation, the tool body can be quickly replaced, thereby improving the tool changing efficiency.

[0003] However, the tool changing method of this device often relies on manual alignment of the tool and tool holder, which is not only cumbersome and time-consuming, but also difficult to guarantee positioning accuracy. In addition, after the tool has been working for a long time, a lot of heat will be generated on its surface. If the tool is not cooled in time, it will reduce the tool's service life and affect the processing efficiency.

[0004] Therefore, there is an urgent need for a mechanism that can achieve rapid and accurate positioning of the cutting tool, facilitate disassembly, and has a cooling function, in order to solve the problems existing in the current cutting tool replacement process. Utility Model Content

[0005] The purpose of this invention is to provide a quick positioning mechanism for tool changing in CNC machine tools, so as to solve the problems of low tool changing efficiency, inaccurate positioning, and complex operation in the existing technology.

[0006] This utility model provides a quick positioning mechanism for changing CNC machine tool tools, including a tool, a quick positioning component, an auxiliary disassembly component, and a cooling component.

[0007] As a further description of the above technical solution:

[0008] The quick positioning component is installed at the bottom of the tool, the auxiliary disassembly component is located inside the quick positioning component, and the cooling components are symmetrically arranged at both ends of the top of the quick positioning component.

[0009] As a further description of the above technical solution:

[0010] The quick positioning assembly includes a tool holder 1, a tool holder 2, a guide plate, a base, a bracket, a connecting column, a movable plate, a pull plate, a connecting plate, a fixed column, and a spring 1. The tool holder 2 is located at the top of the tool holder 1. The guide plate is installed on the inner wall of the tool holder 1. The base is located at the bottom of the tool holder 1. The bracket is installed at one end of the tool holder 1. The connecting column is located inside the bracket and has a positioning groove in the middle. The movable plate is fitted onto the outer end of the connecting column and has a protrusion in the middle that matches the positioning groove of the connecting column. The pull plate is installed at one end of the connecting column, and the connecting plate is located at the other end of the connecting column. The spring is fitted onto the outer end of the connecting column and is located near the movable plate. The fixed columns are symmetrically installed at one end of the connecting plate, and the tool has a through hole that matches the fixed column.

[0011] As a further description of the above technical solution:

[0012] The auxiliary disassembly assembly consists of a fixed plate, a damper, and a second spring. The fixed plate is located inside the tool holder, the dampers are symmetrically installed at the bottom of the fixed plate, and the second spring is sleeved on the outer end of the damper. The bottom end of the damper is fixedly connected to the bottom end of the tool holder.

[0013] As a further description of the above technical solution:

[0014] The cooling assembly includes a mounting bracket, a liquid inlet, a first branch pipe, a positioning plate, a second branch pipe, nozzles, and connecting pipes. The mounting bracket is installed at both ends of the second blade holder. The first branch pipe is located at one end of the mounting bracket. The liquid inlet is located at one end of the first branch pipe. The connecting pipes are symmetrically connected to the other end of the first branch pipe. The positioning plate is fitted over the outer end of the connecting pipe. The second branch pipe is connected to the other end of the connecting pipe. The nozzles are symmetrically installed at one end of the second branch pipe.

[0015] As a further description of the above technical solution:

[0016] The end of the pull plate away from the connecting column has anti-slip texture, which is distributed diagonally in a crisscross pattern.

[0017] As a further description of the above technical solution:

[0018] The top of the guide plate is provided with an arc-shaped guide surface. The radius of curvature of the arc-shaped guide surface is the same as the radius of curvature of the inlet end of the tool sliding groove. The length of the guide plate is the same as the height of the inner wall of the tool holder.

[0019] The present invention has the following advantages: 1. The present invention, through the cooperation of the guide plate and the fixing column in the quick positioning assembly, can realize the quick positioning and stable fixing of the tool, effectively improve the positioning accuracy and efficiency of tool replacement, reduce the error of manual operation, and ensure the quality of subsequent processed products.

[0020] 2. This utility model introduces coolant through the inlet, which is then divided by the first branch pipe, the connecting pipe and the second branch pipe, and then evenly sprayed onto the cutting tool by the nozzle. This can promptly remove the heat generated by the cutting tool during operation, reduce the tool temperature, extend the tool's service life, and ensure processing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the rapid positioning component of this utility model;

[0024] Figure 4 This is a partial enlarged view of the rapid positioning component of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the auxiliary disassembly component of this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the cooling component of this utility model.

[0027] The attached figures are labeled as follows:

[0028] 1. Cutting tool; 2. Quick positioning assembly; 21. Tool holder one; 22. Tool holder two; 23. Guide plate; 24. Base; 25. Bracket; 26. Pull plate; 27. Connecting column; 28. Movable plate; 29. ​​Connecting plate; 210. Fixed column; 211. Spring one; 3. Auxiliary disassembly assembly; 31. Fixed plate; 32. Damping; 33. Spring two; 4. Cooling assembly; 41. Mounting bracket; 42. Liquid inlet; 43. Diverter pipe one; 44. Positioning plate; 45. Diverter pipe two; 46. Nozzle. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0032] As attached Figure 1 To be continued Figure 6 The aforementioned is a rapid positioning mechanism for changing CNC machine tool tools. This rapid positioning mechanism includes a tool 1, a rapid positioning component 2, an auxiliary disassembly component 3, and a cooling component 4.

[0033] The quick positioning component 2 is installed at the bottom of the tool 1. This connection method allows the quick positioning component 2 to directly position and support the tool 1, providing a stable mounting base for the tool 1. The quick positioning component 2 has an auxiliary disassembly component 3 inside. This layout allows the auxiliary disassembly component 3 to act directly on the tool 1 inside the quick positioning component 2, facilitating the subsequent disassembly operation of the tool 1. The cooling components 4 are symmetrically arranged at both ends of the top of the quick positioning component 2. The symmetrical distribution ensures that the cooling components 4 cool the tool 1 evenly, avoids local overheating of the tool 1, and ensures the machining accuracy and service life of the tool 1.

[0034] Example 1

[0035] Specifically, the quick positioning component 2 includes a tool holder 21, with a base 24 at the bottom. The connection between the base 24 and the tool holder 21 enhances the stability of the tool holder 21 and prevents it from shifting during use. A tool holder 22 is provided at the top of the tool holder 21. The tool holder 22 and the tool holder 21 cooperate to form a complete tool installation space, further limiting the tool 1 and improving the stability of the tool 1 after installation.

[0036] The quick positioning component 2 also includes a guide plate 23, which is disposed on the inner wall of the tool holder 21. One end of the tool 1 is provided with a sliding groove that matches the guide plate 23. The cooperation between the guide plate 23 and the sliding groove plays a guiding role, which can guide the tool 1 to accurately enter the interior of the tool holder 21, reduce the alignment time during tool 1 installation, and improve installation efficiency. One end of the tool holder 21 is provided with a bracket 25, which provides an installation carrier for subsequent components. The bracket 25 is provided with a connecting column 27 inside, which supports and limits the connecting column 27, ensuring that the connecting column 27 moves within the specified trajectory.

[0037] In addition, a positioning groove is provided in the middle of the connecting column 27, and a movable plate 28 is provided at the outer end of the connecting column 27. A protrusion that matches the positioning groove of the connecting column 27 is provided in the middle of the movable plate 28. The cooperation between the protrusion and the positioning groove enables the synchronous movement of the connecting column 27 and the movable plate 28, ensuring that the moving column 27 can drive the movable plate 28 to move together, thus providing a guarantee for the linkage of subsequent components.

[0038] Furthermore, one end of the connecting column 27 is provided with a pull plate 26, which facilitates the operator to apply external force. By pulling the pull plate 26, the connecting column 27 can be moved, reducing the difficulty of operation. The other end of the connecting column 27 is provided with a connecting plate 29. The connection between the connecting column 27 and the connecting plate 29 allows the kinetic energy of the connecting column 27 to be transferred to the connecting plate 29, realizing the transmission of power. The outer end of the connecting column 27 near the movable disk 28 is provided with a spring 211. One end of the spring 211 is fixedly connected to one end of the movable disk 28, and the other end of the spring 211 is fixedly connected to one end of the connecting plate 29. This connection method allows the spring 211 to generate an elastic force between the movable disk 28 and the connecting plate 29. When the connecting column 27 moves the connecting plate 29, the spring 211 can deform and store elastic potential energy, and can then push the connecting plate 29 back to its original position through elastic reset.

[0039] Furthermore, the connecting plate 29 is symmetrically provided with fixing posts 210 at one end, and the tool 1 is provided with a through hole that matches the fixing post 210 at one end. The cooperation between the fixing post 210 and the through hole can fix the tool 1 inside the tool holder 21, preventing the tool 1 from loosening or shifting during operation and ensuring the stability of the machining process.

[0040] Specifically, the auxiliary disassembly component 3 includes a fixing plate 31, which is disposed inside the tool holder 21. The fixing plate 31 can directly contact the bottom of the tool 1 to provide bottom support for the tool 1. The bottom end of the fixing plate 31 is symmetrically provided with dampers 32, and the bottom end of the dampers 32 is fixedly connected to the bottom end of the tool holder 21. The dampers 32 can slow down the movement speed of the fixing plate 31 and prevent the fixing plate 31 from causing impact damage to the tool 1 or the tool holder 21 due to excessive speed in subsequent actions.

[0041] Among them, the outer end of the damper 32 is fitted with a second spring 33. The cooperation between the second spring 33 and the damper 32 means that when the fixed plate 31 is under pressure, the second spring 33 will compress and store elastic potential energy. When it is necessary to disassemble the tool 1, the second spring 33 releases the elastic potential energy to push the fixed plate 31 to move upward, thereby assisting the tool 1 to disengage from the tool holder 21 and reducing the difficulty of disassembly.

[0042] Example 2

[0043] Based on Example 1, in order to further reduce tool temperature, extend tool life, and ensure machining efficiency, cooling components are provided at both ends of the top of the rapid positioning assembly.

[0044] Specifically, the cooling assembly 4 includes a mounting bracket 41, which is located at both ends of the tool holder 22. The mounting bracket 41 provides mounting support for other components of the cooling assembly 4, ensuring the overall stability of the cooling assembly 4. One end of the mounting bracket 41 is provided with a diversion pipe 43, which is fixed to the diversion pipe 43 to prevent it from shaking when transporting coolant.

[0045] One end of the distributor pipe 43 is provided with a liquid inlet 42, which facilitates connection to an external coolant supply device to provide a coolant source for the cooling assembly 4. The other end of the distributor pipe 43 is symmetrically provided with connecting pipes, which can evenly distribute the coolant entering from the liquid inlet 42 to each connecting pipe to ensure that the coolant supply to each connecting pipe is consistent. The outer end of the connecting pipe is provided with a positioning plate 44, which can fix the connecting pipe to prevent displacement or detachment during use and ensure smooth coolant delivery.

[0046] In addition, the other end of the connecting pipe is provided with a second distribution pipe 45. The connecting pipe delivers the coolant distributed by the first distribution pipe 43 to the second distribution pipe 45 to realize the secondary distribution of coolant. One end of the second distribution pipe 45 is symmetrically provided with nozzles 46. The second distribution pipe 45 can evenly deliver coolant to each nozzle 46. The nozzles 46 can atomize or spray the coolant onto the surface of the tool 1, improve the utilization rate of coolant and enhance the cooling effect.

[0047] Furthermore, the end of the pull plate 26 away from the connecting column 27 is provided with anti-slip texture. The anti-slip texture is distributed diagonally and crosswise. The anti-slip texture can increase the friction between the operator's hand and the pull plate 26, prevent the operator from slipping when pulling the pull plate 26, improve the safety and convenience of operation, and ensure that the operator can stably control the movement of the connecting column 27.

[0048] Furthermore, the top of the guide plate 23 is provided with an arc-shaped guide surface. The radius of curvature of the arc-shaped guide surface is consistent with the radius of curvature of the inlet end of the sliding groove of the tool 1. The design of the same radius of curvature allows the sliding groove of the tool 1 to cooperate more smoothly with the guide plate 23, reducing the frictional resistance when the two cooperate, and avoiding wear of the tool 1 or the guide plate 23 due to poor cooperation.

[0049] Furthermore, the length of the guide plate 23 is the same as the height of the inner wall of the tool holder 21. This size design allows the guide plate 23 to extend from the top to the bottom of the inner wall of the tool holder 21, ensuring that the tool 1 is guided by the guide plate 23 throughout the installation process, further improving the accuracy of the tool 1 installation.

[0050] It should also be noted that the CNC machine tool cutting tools in this application can be vertical machining center cutting tools, horizontal machining center cutting tools, high-speed engraving and milling machine cutting tools, etc. Figure 1 In this embodiment, the CNC machine tool cutting tool is described as a vertical machining center cutting tool. Of course, other types of CNC machine tool cutting tools can also adopt a similar structure, which will not be described in detail below.

[0051] Understandable Figure 1 The diagram only schematically illustrates some of the components included in the rapid positioning mechanism; the actual shape, size, position, and construction of these components are not subject to change. Figure 1 Due to limitations, rapid positioning mechanisms can also include, compared to... Figure 1 More or fewer parts.

[0052] In actual use, the operator first aligns the tool 1 with the entrance of the tool holder 21. Under the guidance of the arc-shaped guide surface at the top of the guide plate 23, the sliding groove of the tool 1 cooperates with the guide plate 23, allowing the tool 1 to smoothly enter the tool holder 21. During the process of the tool 1 entering the tool holder 21, the bottom of the tool 1 contacts the fixed plate 31 and pushes the fixed plate 31 to move downward. The fixed plate 31 drives the damper 32 to contract, and at the same time the spring 33 is compressed, storing elastic potential energy.

[0053] Tool fixing process: After the tool 1 is fully inserted into the tool holder 21, the operator pulls the pull plate 26. The pull plate 26 drives the connecting column 27 to move away from the tool holder 21. The connecting column 27 drives the connecting plate 29 to move synchronously. The connecting plate 29 drives the fixing column 210 to move. At this time, the spring 211 is stretched. When the through hole on the tool 1 is aligned with the fixing column 210, the operator releases the pull plate 26. The spring 211 returns to its original position under the action of elastic force, pushing the connecting plate 29 to move closer to the tool holder 21. The connecting plate 29 drives the fixing column 210 to insert into the through hole of the tool 1, thus fixing the tool 1.

[0054] Tool cooling process: During the operation of tool 1, the external coolant supply device delivers coolant to the first distributor pipe 43 through the inlet 42. The first distributor pipe 43 distributes the coolant evenly to each connecting pipe. Under the fixing action of the positioning plate 44, the connecting pipe stably delivers the coolant to the second distributor pipe 45. The second distributor pipe 45 further distributes the coolant to each nozzle 46. The nozzle 46 sprays the coolant evenly onto tool 1 to cool and lower the temperature of tool 1.

[0055] Tool disassembly process: When it is necessary to disassemble tool 1, the operator pulls the pull plate 26. The pull plate 26 drives the connecting column 27 to move away from the tool holder 21. The connecting column 27 drives the connecting plate 29 to move synchronously. The connecting plate 29 drives the fixing column 210 to be pulled out from the through hole of tool 1.

[0056] At this time, the compressed spring 33 releases its elastic potential energy, pushing the fixed plate 31 to move upward. The fixed plate 31 drives the tool 1 to move upward. At the same time, the damper 32 slows down the movement speed of the fixed plate 31 to prevent the tool 1 from being impacted. The operator can then easily remove the tool 1 from the tool holder 21 and complete the disassembly of the tool 1.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A quick positioning mechanism for changing tools on a CNC machine tool, characterized in that, include: Cutting tool (1), quick positioning assembly (2), auxiliary disassembly assembly (3), and cooling assembly (4); The quick positioning component (2) is installed at the bottom of the tool (1). The quick positioning component (2) is equipped with an auxiliary disassembly component (3). The cooling component (4) is symmetrically arranged at both ends of the top of the quick positioning component (2). The quick positioning component (2) includes a tool holder one (21). The bottom of the tool holder one (21) is provided with a base (24), and the top of the tool holder one (21) is provided with a tool holder two (22).

2. The quick positioning mechanism for changing tools in a CNC machine tool according to claim 1, characterized in that: The quick positioning assembly (2) also includes a guide plate (23), which is disposed on the inner wall of the tool holder (21). One end of the tool (1) is provided with a sliding groove that is compatible with the guide plate (23). One end of the tool holder (21) is provided with a bracket (25). The bracket (25) is provided with a connecting column (27) inside. The connecting column (27) is provided with a positioning groove in the middle. The outer end of the connecting column (27) is provided with a movable plate (28). The movable plate (28) is provided with a protrusion that is compatible with the positioning groove of the connecting column (27) in the middle.

3. The quick positioning mechanism for changing tools in a CNC machine tool according to claim 2, characterized in that: A pull plate (26) is provided at one end of the connecting column (27), and a connecting plate (29) is provided at the other end of the connecting column (27). A spring (211) is provided at the outer end of the connecting column (27) near the movable plate (28). One end of the spring (211) is fixedly connected to one end of the movable plate (28), and the other end of the spring (211) is fixedly connected to one end of the connecting plate (29). A fixing column (210) is symmetrically provided at one end of the connecting plate (29). A through hole that matches the fixing column (210) is provided at one end of the cutter (1).

4. A quick positioning mechanism for changing tools in a CNC machine tool according to claim 3, characterized in that: The auxiliary disassembly assembly (3) includes a fixing plate (31), which is located inside the tool holder (21). The bottom end of the fixing plate (31) is symmetrically provided with dampers (32), and the bottom end of the dampers (32) is fixedly connected to the bottom end of the tool holder (21). The outer end of the dampers (32) is fitted with a spring (33).

5. A quick positioning mechanism for changing tools in a CNC machine tool according to claim 4, characterized in that: The cooling assembly (4) includes a mounting bracket (41), which is located at both ends of the knife holder (22). One end of the mounting bracket (41) is provided with a first diversion pipe (43), one end of the first diversion pipe (43) is provided with a liquid inlet (42), the other end of the first diversion pipe (43) is symmetrically provided with connecting pipes, the outer end of the connecting pipe is provided with a positioning plate (44), the other end of the connecting pipe is provided with a second diversion pipe (45), and one end of the second diversion pipe (45) is symmetrically provided with nozzles (46).

6. A quick positioning mechanism for changing tools in a CNC machine tool according to claim 5, characterized in that: The end of the pull plate (26) away from the connecting column (27) is provided with anti-slip texture, and the anti-slip texture is distributed diagonally in a crisscross pattern.

7. A quick positioning mechanism for changing tools in a CNC machine tool according to claim 6, characterized in that: The top of the guide plate (23) is provided with an arc-shaped guide surface. The radius of curvature of the arc-shaped guide surface is the same as the radius of curvature of the sliding groove inlet end of the tool (1). The length of the guide plate (23) is the same as the height of the inner wall of the tool holder (21).

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