A tool anti-loosening clamping mechanism for CNC machining

Abstract

The utility model relates to numerical control processing field discloses a kind of tool anti-loosening clamping mechanisms for CNC machining, including tool holder clamping end, the top end of tool holder clamping end is fixedly connected with tool holder mounting end, the top end inside the tool holder clamping end is provided with bolt slot, the inside thread of bolt slot is connected with locking bolt, the left side fixedly connected with oil inlet channel in the bottom end of bolt slot, the inside of tool holder clamping end is provided with mounting groove, expansion sleeve is fixedly installed in the inside of mounting groove.This tool anti-loosening clamping mechanism for CNC machining is stably clamped to tool by expansion sleeve, temperature sensor and pressure sensor are convenient for real-time monitoring the temperature when tool operates and the extrusion force of expansion sleeve to tool during the process of using tool, timely reminding is needed to stop maintenance once detecting that pressure is low or temperature is too high, the structure realizes the function of enhancing clamping stability and safe clamping, solve the problem of poor clamping stability.

Description

Technical Field

[0001] This utility model relates to the field of numerical control machining technology, specifically to a tool anti-loosening clamping mechanism for CNC machining. Background Technology

[0002] CNC, also known as numerical control machining, refers to a process method for machining parts on a numerical control machine tool. The control system issues instructions to make the cutting tool perform various movements that meet the requirements. The machining is carried out by using numbers and letters to represent the technical requirements and machining process requirements such as the shape and size of the workpiece.

[0003] CNC machining tools are very important machining components. In order to improve the stability of tool machining, tool holders are needed to clamp and limit the tool. However, common hydraulic tool clamping mechanisms are inconvenient to monitor the tool temperature in a timely manner during use. If the temperature is too high, the clamping mechanism may deform, and some clamping mechanisms are prone to internal leakage.

[0004] There is an urgent need for a tool anti-loosening clamping mechanism for CNC machining to solve the technical defects mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a tool anti-loosening clamping mechanism for CNC machining, so as to solve the problem of poor clamping stability mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC machining tool anti-loosening clamping mechanism, including a tool holder clamping end, a tool holder mounting end fixedly connected to the top of the tool holder clamping end, a bolt groove provided at the top of the inside of the tool holder clamping end, a locking bolt threaded into the bolt groove, an oil inlet channel fixedly connected to the left side of the bottom of the bolt groove, an installation groove provided inside the tool holder clamping end, an expansion sleeve fixedly installed inside the installation groove, an oil cavity provided inside the tool holder clamping end, a heat dissipation channel provided inside the tool holder mounting end, heat dissipation vents evenly opened on the outside of the tool holder mounting end, a temperature sensor and a pressure sensor fixedly installed on the inner wall of the expansion sleeve, a dirt tank provided inside the installation groove, a drain outlet provided at the bottom of the dirt tank, and a positioning screw fixedly installed at the top of the inside of the installation groove.

[0007] As a further technical solution of this utility model, the oil inlet channel is connected to the oil cavity in a through connection, and the oil cavity is connected to the expansion sleeve in a through connection.

[0008] As a further technical solution of this utility model, a reserved opening is provided at the top right side of the tool holder clamping end, and the locking bolt is embedded in the reserved opening.

[0009] As a further technical solution of this utility model, a sealing bolt is provided inside the drain port, and the sealing bolt is threadedly connected to the drain port.

[0010] As a further technical solution of this utility model, the bottom end of the drain port is connected to the bottom end of the knife handle clamping end.

[0011] As a further technical solution of this utility model, the dirt tank is provided in two sets, and three sets of sewage discharge tanks are fixedly connected between the dirt tanks.

[0012] As a further technical solution of this utility model, a carbon fiber composite layer is provided inside the mounting end of the tool holder.

[0013] As a further technical solution of this utility model, the heat dissipation port is provided in four sets, and the heat dissipation guide channel is connected to the heat dissipation port through a pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the anti-loosening clamping mechanism for CNC machining tools not only realizes the function of enhancing clamping stability and facilitating the discharge of waste liquid, but also realizes the function of enhancing heat dissipation.

[0015] (1) By setting up a tool holder clamping end, an oil inlet channel, an oil chamber, an expansion sleeve, a temperature sensor and a pressure sensor, the tool can be placed inside the mounting groove of the tool holder clamping end. The liquid can be introduced by tightening the locking bolt. Then the expansion sleeve clamps the tool stably. During the use of the tool, the temperature sensor and the pressure sensor can monitor the temperature of the tool and the squeezing force of the expansion sleeve on the tool in real time. Once the pressure is too low or the temperature is too high, it is necessary to remind the machine to stop for maintenance in time. This structure realizes the function of enhancing clamping stability and safe clamping.

[0016] (2) By setting up an installation groove, a dirt groove, a drain groove, a drain outlet and a sealing bolt, the dirt groove inside the installation groove can guide the overflowing oil, and the oil can enter the interior of the dirt groove. After processing, the oil accumulated in the dirt groove can be discharged and recycled. When recycling, rotate the sealing bolt to remove it from the inside of the drain outlet, and then the oil can be discharged and recycled along the drain outlet. This structure realizes the function of facilitating the discharge of waste liquid.

[0017] (3) By setting up a tool holder mounting end, a carbon fiber composite layer, a heat dissipation port and a heat dissipation channel, a carbon fiber composite layer is added inside the tool holder mounting end. The carbon fiber composite layer is combined with the metal body of the tool holder mounting end to manufacture a tool holder for clamping, achieving extremely high specific stiffness, which is particularly suitable for ultra-high speed machining. The heat dissipation channel inside the tool holder mounting end can efficiently guide airflow during high-speed rotation to achieve heat dissipation. This structure realizes the functions of facilitating the enhancement of rigidity and heat dissipation effect. Attached Figure Description

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is a front view cross-sectional structural diagram of the tool holder mounting end of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a front view structural diagram of the dirt tank of this utility model.

[0022] In the diagram: 1. Tool holder clamping end; 2. Oil inlet channel; 3. Oil chamber; 4. Expansion sleeve; 5. Bolt groove; 6. Tool holder mounting end; 7. Heat dissipation channel; 8. Carbon fiber composite layer; 9. Heat dissipation port; 10. Locking bolt; 11. Positioning screw; 12. Temperature sensor; 13. Dirt tank; 14. Sewage tank; 15. Mounting groove; 16. Pressure sensor; 17. Drain port; 18. Sealing bolt. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 The present invention provides an embodiment of a CNC machining tool anti-loosening clamping mechanism, comprising a tool holder clamping end 1, a tool holder mounting end 6 fixedly connected to the top of the tool holder clamping end 1, a bolt groove 5 provided at the top inside the tool holder clamping end 1, a locking bolt 10 threadedly connected inside the bolt groove 5, an oil inlet channel 2 fixedly connected to the left side of the bottom end of the bolt groove 5, an installation groove 15 provided inside the tool holder clamping end 1, an expansion sleeve 4 fixedly installed inside the installation groove 15, an oil cavity 3 provided inside the tool holder clamping end 1, a heat dissipation channel 7 provided inside the tool holder mounting end 6, heat dissipation vents 9 evenly opened on the outside of the tool holder mounting end 6, a temperature sensor 12 and a pressure sensor 16 fixedly installed on the inner wall of the expansion sleeve 4, a dirt groove 13 provided inside the installation groove 15, a drain outlet 17 provided at the bottom end of the dirt groove 13, and a positioning screw 11 fixedly installed at the top inside the installation groove 15.

[0025] The oil inlet channel 2 is connected to the oil chamber 3, and the oil chamber 3 is connected to the expansion sleeve 4. A reserved opening is provided at the top right side of the tool holder clamping end 1, and the locking bolt 10 is embedded in the reserved opening.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, the cutting tool can be placed inside the mounting groove 15 of the tool holder clamping end 1. Liquid can be introduced by tightening the locking bolt 10. Then, the expansion sleeve 4 stably clamps the cutting tool. During the use of the cutting tool, the temperature sensor 12 and the pressure sensor 16 can monitor the temperature of the cutting tool and the squeezing force of the expansion sleeve 4 on the cutting tool in real time. If the pressure is too low or the temperature is too high, it is necessary to remind the user to stop the machine for maintenance in time.

[0027] The drain port 17 is provided with a sealing bolt 18 inside. The sealing bolt 18 is threadedly connected to the drain port 17. The bottom end of the drain port 17 is connected to the bottom end of the knife handle clamping end 1. There are two sets of dirt tanks 13. Three sets of sewage tanks 14 are fixedly connected between the dirt tanks 13.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, the dirt tank 13 inside the installation tank 15 can guide the overflowing oil. The oil can enter the interior of the dirt tank 13. After processing, the oil accumulated inside the dirt tank 13 can be discharged and recycled. During recycling, rotate the sealing bolt 18 to remove it from the drain port 17. Then the oil can be discharged and recycled along the drain port 17.

[0029] The interior of the tool holder mounting end 6 is provided with a carbon fiber composite layer 8, and four sets of heat dissipation vents 9 are provided. The heat dissipation channel 7 is connected to the heat dissipation vents 9.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, a carbon fiber composite layer 8 is added inside the tool holder mounting end 6. The carbon fiber composite layer 8 is combined with the metal body of the tool holder mounting end 6 to manufacture a tool holder for clamping, achieving extremely high specific stiffness, which is particularly suitable for ultra-high speed machining. The heat dissipation channel 7 inside the tool holder mounting end 6 can efficiently guide airflow to achieve heat dissipation during high-speed rotation.

[0031] Working Principle: In use, the cutting tool can be placed inside the mounting groove 15 of the tool holder clamping end 1. Liquid can be introduced by tightening the locking bolt 10. The expansion sleeve 4 then stably clamps the tool. During use, the temperature sensor 12 and pressure sensor 16 monitor the temperature of the cutting tool and the compressive force exerted by the expansion sleeve 4 on it in real time. If low pressure or excessive temperature is detected, a timely shutdown maintenance is required. A carbon fiber composite layer 8 is added inside the tool holder mounting end 6, and this carbon fiber composite layer 8 is integrated with the metal body of the tool holder mounting end 6. The tool holder is manufactured to achieve extremely high specific stiffness, making it particularly suitable for ultra-high-speed machining. The heat dissipation channel 7 inside the tool holder mounting end 6 can efficiently guide airflow during high-speed rotation to achieve heat dissipation. The dirt tank 13 inside the mounting groove 15 can guide overflowing oil into the dirt tank 13. After machining, the oil accumulated inside the dirt tank 13 can be discharged and recycled. During recycling, the sealing bolt 18 is rotated to remove it from the drain port 17, and then the oil is discharged and recycled through the drain port 17. This structure realizes the function of conveniently discharging waste liquid.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool anti-loosening clamping mechanism for CNC machining, comprising a tool holder clamping end (1), characterized in that: The top end of the handle clamping end (1) is fixedly connected to the handle mounting end (6). The top end of the handle clamping end (1) is provided with a bolt groove (5). A locking bolt (10) is threaded into the bolt groove (5). An oil inlet channel (2) is fixedly connected to the left side of the bottom end of the bolt groove (5). An installation groove (15) is provided inside the handle clamping end (1). An expansion sleeve (4) is fixedly installed inside the installation groove (15). An oil inlet is provided inside the handle clamping end (1). The cavity (3) has a heat dissipation channel (7) inside the tool holder mounting end (6), and heat dissipation vents (9) are evenly opened on the outside of the tool holder mounting end (6). A temperature sensor (12) and a pressure sensor (16) are fixedly installed on the inner wall of the expansion sleeve (4). A dirt tank (13) is provided inside the mounting groove (15). A drain port (17) is provided at the bottom of the dirt tank (13). A positioning screw (11) is fixedly installed at the top of the mounting groove (15).

2. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: The oil inlet channel (2) is connected to the oil cavity (3), and the oil cavity (3) is connected to the expansion sleeve (4).

3. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: The top right side of the tool holder clamping end (1) is provided with a reserved opening, and the locking bolt (10) is embedded inside the reserved opening.

4. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: The drain port (17) is provided with a sealing bolt (18) inside, and the sealing bolt (18) is threadedly connected to the drain port (17).

5. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: The bottom end of the drain port (17) is connected to the bottom end of the handle clamping end (1).

6. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: Two sets of dirt tanks (13) are provided, and three sets of drain tanks (14) are fixedly connected between the dirt tanks (13).

7. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: The inside of the tool holder mounting end (6) is provided with a carbon fiber composite layer (8).

8. The CNC machining tool anti-loosening clamping mechanism according to claim 1, characterized in that: The heat dissipation port (9) is provided in four sets, and the heat dissipation guide channel (7) is connected to the heat dissipation port (9).

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