CNC intelligent cold knife device

By using a motor-driven connector with anti-friction rings and rubber friction rods in the cold tool device of the CNC machining center, the problems of water pipe blockage and gear jamming were solved, achieving stable operation and efficient cooling of the device, and improving service life and machining quality.

CN223719047UActive Publication Date: 2025-12-26SHENZHEN AIKEDA TECH CO LTD
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Patent Information

Application Number
CN202520250088.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-26
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing CNC machining center cold cutting devices suffer from problems such as easy clogging of the water outlet pipe and easy jamming of gears, affecting service life, machining quality and efficiency.

Method used

The motor-driven connectors feature an anti-friction ring and friction rod design, combining a PTFE anti-friction ring and a rubber friction rod to reduce wear and optimize coolant flow direction, ensuring stable operation of the device.

Benefits of technology

It extended the service life of the equipment, improved processing quality and efficiency, and ensured cooling effect and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a CNC intelligent cold knife device which aims at solving the problems that a water outlet pipe of an existing cold knife device is prone to being blocked and inflexible in rotation. The device comprises a motor, a mounting block, a dustproof cover, a water pipe, a water outlet pipe and a connecting piece. And an anti-friction ring is arranged in the mounting groove. The connecting piece is fixed on the anti-friction ring through the pressing ring, the bottom is connected with a bolt at the output end of the motor, the top is provided with a through groove, and the side wall is provided with a first through hole. The water pipe is arranged in the through groove, the water outlet pipe is arranged in the first through hole, and the diameter of the water outlet pipe is 10-12 mm. A plurality of second through holes are formed in the dustproof cover, friction rods are fixed in the second through holes, the rubber ends of the friction rods abut against the anti-friction ring, abrasion is reduced, and the service life is prolonged. The outlet direction of the water outlet pipe and the first through hole form a 45-degree included angle, the flowing direction of cooling liquid is optimized, and the cooling effect is improved. The device is simple in structure, convenient to use, high in reliability and long in service life, and the problems of an existing cold knife device are effectively solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to CNC machining center cooling equipment technical field especially a kind of intelligent cold knife device for CNC machining center. BACKGROUND

[0002] In the machining process of CNC machining center, cold knife device is important equipment for cooling and lubricating tool. However, the existing cold knife device has some problems. First, the water outlet of water outlet pipe is small, and water outlet pipe is easy to bend, after long time use, iron slag in water pipe can enter outlet pipe with water flow, causing outlet pipe to be blocked. Secondly, the existing cold knife device usually needs gear to drive its rotation, after long time use, gear is easy to be stuck, affecting the normal operation of device. These problems not only reduce the service life of cold knife device, but also affect processing quality and efficiency. SUMMARY

[0003] In view of the above situation, it is necessary to provide a CNC intelligent cold knife device solving at least one of the above problems, comprising:

[0004] Motor (1), mounting block (2), dust cover (3), water pipe (4), water outlet pipe (5), connecting piece (6);

[0005] The middle part of mounting block (2) is equipped with mounting groove (21), and anti-friction ring (22) is arranged in mounting groove (21);

[0006] Connecting piece (6) is fixed in anti-friction ring (22) by compression ring (7), the bottom is equipped with connecting hole (61) connected with the output pin of motor (1), the top is equipped with through slot (62), and the sidewall is equipped with first through hole (63) communicated with through slot (62);

[0007] Water pipe (4) is arranged in through slot (62), and water outlet pipe (5) is arranged in first through hole (63);

[0008] Dust cover (3) is equipped with a plurality of second through holes (31), and friction rod (8) is fixed in second through hole (31), one end of friction rod (8) is rubber material, and is in abutment with anti-friction ring (22).

[0009] Preferably, the contact surface of the rubber end (81) of the friction rod (8) and the anti-friction ring (22) is arc-shaped.

[0010] Preferably, the connecting hole (61) is polygonal hole, and the shape of the pin of the output end of motor (1) is matched.

[0011] Preferably, the second through holes (31) of dust cover (3) are evenly distributed along the circumference, and coaxial with the axis of anti-friction ring (22).

[0012] Preferably, the outlet direction of the water outlet pipe (5) is 45° included angle with the first through hole (63).

[0013] Preferably, the anti-friction ring (22) is made of polytetrafluoroethylene.

[0014] Preferably, the pressing ring (7) is fixed with the mounting block (2) through bolts (71).

[0015] Preferably, the outer wall of the water pipe (4) and the inner wall of the through groove (62) are provided with sealing pads (9).

[0016] Preferably, the motor (1) output end is provided with a positioning boss (11), and the connecting hole (61) is provided with a groove (611) matched with the positioning boss (11).

[0017] Preferably, the dust cover (3) is detachably connected with the mounting block (2) through buckles. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the CNC intelligent cold knife device of the embodiment of the utility model.

[0019] Figure 2 It is the explosion drawing of the CNC intelligent cold knife device of the embodiment of the utility model.

[0020] Figure 3 It is the explosion drawing of the CNC intelligent cold knife device of the embodiment of the utility model.

[0021] Figure 4 It is the structure schematic diagram of the connecting piece of the embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following is combined with the drawings and examples, and the utility model CNC intelligent cold knife device is further described in detail.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0025] Please see Figures 1 to 4 The utility model discloses a kind of CNC intelligent cold knife devices, including motor (1), mounting block (2), dust cover (3), water pipe (4), outlet pipe (5) and connecting piece (6). The middle part of mounting block (2) is equipped with mounting groove (21), and anti-friction ring (22) is arranged in mounting groove (21). Connecting piece (6) is fixed in anti-friction ring (22) by compression ring (7), its bottom is equipped with the connecting hole (61) of plug-in connection with the output end of motor (1), top is equipped with through slot (62), sidewall is equipped with the first through-hole (63) communicated with through slot (62). Water pipe (4) is located in through slot (62), and outlet pipe (5) is located in first through-hole (63). Dust cover (3) is equipped with a plurality of second through holes (31), second through hole (31) is fixed with friction stick (8), and one end of friction stick (8) is rubber material, and abuts with anti-friction ring (22).

[0026] The motor (1) provides power source for the cold knife device, and is connected with the connecting hole (61) of the connecting piece (6) through the plug of the output end to drive the rotation of the connecting piece (6). The connecting piece (6) is fixed to the anti-friction ring (22) through the pressure ring (7), which ensures the stability of the relative position between the connecting piece (6) and the anti-friction ring (22) during rotation. The water pipe (4) is arranged in the through groove (62) for conveying cooling liquid, and the water outlet pipe (5) is arranged in the first through hole (63) to output the cooling liquid to the cutter. The second through hole (31) of the dust cover (3) is fixed with the friction rod (8), and the rubber end (81) of the friction rod (8) abuts against the anti-friction ring (22), which reduces the relative movement between the connecting piece (6) and the anti-friction ring (22) through friction force, thereby reducing wear and prolonging the service life of the device. The water outlet pipe is a straight cylinder with a diameter of 10mm-12mm.

[0027] Please attend Figures 1 to 4 In another embodiment, the contact surface between the rubber end (81) of the friction rod (8) and the anti-friction ring (22) is arc-shaped. This design increases the contact area between the friction rod (8) and the anti-friction ring (22), reduces the local friction force, thereby reducing wear and further improving the service life of the device. When the motor (1) drives the connecting piece (6) to rotate, the arc-shaped contact surface between the rubber end (81) of the friction rod (8) and the anti-friction ring (22) can better adapt to the rotary motion, reduce the friction resistance, and ensure the smooth operation of the device.

[0028] Please attend Figures 1 to 4 In another embodiment, the connecting hole (61) is a polygonal hole that matches the shape of the plug of the output end of the motor (1). This design ensures the stable connection between the connecting piece (6) and the output end of the motor (1), avoiding loosening or falling off during rotation. For example, the connecting hole (61) is a hexagonal hole that precisely matches the hexagonal plug of the output end of the motor (1), ensuring the firmness and reliability of the connection and improving the stability of the device.

[0029] Please attend Figures 1 to 4 In another embodiment, the second through holes (31) of the dust cover (3) are uniformly distributed circumferentially and coaxial with the axis of the anti-friction ring (22). This design allows the friction rods (8) to be evenly distributed around the anti-friction ring (22), ensuring the balance and stability of the device during rotation. For example, the dust cover (3) is provided with six second through holes (31) evenly distributed around the anti-friction ring (22), and one friction rod (8) is fixed in each second through hole (31), ensuring the balance of the device during rotation and reducing vibration and noise.

[0030] Please attend Figures 1 to 4In another embodiment, the outlet direction of the water outlet pipe (5) forms a 45° angle with the first through hole (63). This design optimizes the flow direction of the cooling liquid, enabling it to be sprayed more uniformly onto the tool, improving the cooling effect. For example, when the cooling liquid is sprayed from the water outlet pipe (5), the 45° angle enables it to better cover the working area of the tool, ensuring that the tool remains in good cooling condition during processing, improving processing quality and efficiency.

[0031] Please attend Figures 1 to 4 In another embodiment, the anti-friction ring (22) is made of polytetrafluoroethylene. Polytetrafluoroethylene has good wear resistance and self-lubricating properties, effectively reducing friction and wear, prolonging the service life of the device. For example, the anti-friction ring (22) uses polytetrafluoroethylene material, which can maintain good performance during long-term rotation, reducing damage caused by friction and ensuring long-term stable operation of the device.

[0032] Please attend Figures 1 to 4 In another embodiment, the compression ring (7) is fixed to the mounting block (2) by bolts (71). This ensures the secure fixation of the connecting piece (6), avoiding loosening or falling off during rotation. For example, the compression ring (7) is fixed to the mounting block (2) by four bolts (71), ensuring the stability and reliability of the connecting piece (6) and improving the overall performance of the device.

[0033] Please attend Figures 1 to 4 In another embodiment, a sealing gasket (9) is provided between the outer wall of the water pipe (4) and the inner wall of the through groove (62). This design prevents leakage of the cooling liquid, ensuring the sealing of the device. The sealing gasket (9) is made of rubber material, which can effectively fill the gap between the water pipe (4) and the through groove (62), preventing leakage of the cooling liquid during transportation and ensuring normal operation of the device.

[0034] Please attend Figures 1 to 4 In another embodiment, the motor (1) output end is provided with a positioning boss (11), and the connecting hole (61) is provided with a groove (611) matched with the positioning boss (11). This design ensures the precise positioning of the motor (1) output end and the connecting piece (6), avoiding deviation or loosening during rotation. The positioning boss (11) is a circular boss, and the groove (611) is a circular groove, which are accurately matched to ensure the stable connection of the motor (1) output end and the connecting piece (6), improving the reliability of the device.

[0035] Please attend Figures 1 to 4In another embodiment, the dust cover (3) is detachably connected with the mounting block (2) through buckles. This design facilitates the disassembly and cleaning of the dust cover (3), and improves the convenience of maintenance. The buckles are elastic buckles, which can quickly fix the dust cover (3) on the mounting block (2), and are also convenient to disassemble, so as to facilitate the user to regularly clean the dust cover (3) and the friction rod (8), and ensure the long-term stable operation of the device.

[0036] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the scope of the present application.

Claims

1. A CNC intelligent cold knife device, characterized in that, Include: Motor (1), mounting block (2), dust cover (3), water pipe (4), water outlet pipe (5), connecting piece (6); The middle part of the mounting block (2) is provided with a mounting groove (21), and the mounting groove (21) is provided with an anti-friction ring (22); The connecting piece (6) is fixed to the anti-friction ring (22) through a pressing ring (7), the bottom is provided with a connecting hole (61) connected with the output pin of the motor (1), the top is provided with a through groove (62), and the sidewall is provided with a first through hole (63) communicated with the through groove (62); The water pipe (4) is arranged in the through groove (62), and the water outlet pipe (5) is arranged in the first through hole (63); The dust cover (3) is provided with a plurality of second through holes (31), and the second through holes (31) are fixed with a friction rod (8), one end of the friction rod (8) is made of rubber, and the friction rod (8) is in abutment with the anti-friction ring (22).

2. The CNC intelligent cold knife device of claim 1, wherein, The rubber end (81) of the friction rod (8) and the contact surface of the anti-friction ring (22) are arc-shaped.

3. The CNC intelligent cold knife device of claim 1, wherein, The connecting hole (61) is a polygonal hole, which matches the shape of the pin of the motor (1) output end.

4. The CNC intelligent cold knife device of claim 1, wherein, The second through hole (31) of the dust cover (3) is uniformly distributed along the circumference, and is coaxial with the axis of the anti-friction ring (22).

5. The CNC intelligent cold knife device of claim 1, wherein, The outlet direction of the water outlet pipe (5) and the first through hole (63) form an angle of 45 degrees.

6. The CNC intelligent cold knife device of claim 1, wherein, The anti-friction ring (22) is made of polytetrafluoroethylene.

7. The CNC intelligent cold knife device of claim 1, wherein, The pressing ring (7) is fixed with the mounting block (2) through bolts (71).

8. The CNC intelligent cold knife device of claim 1, wherein, The outer wall of the water pipe (4) and the inner wall of the through groove (62) are provided with a sealing gasket (9).

9. The CNC intelligent cold knife device of claim 1, wherein, The output end of the motor (1) is provided with a positioning boss (11), and the connecting hole (61) is provided with a groove (611) matched with the positioning boss (11).

10. The CNC intelligent cold knife device of claim 1, wherein, The dust cover (3) is detachably connected with the mounting block (2) through buckles.