Cooling device for milling cutter production

Abstract

The utility model relates to the technical field of milling cutter machining, in particular to a cooling device for milling cutter production, which comprises a cooling treatment bin, a flow guide partition plate and a lifting bearing net are vertically distributed in the cooling treatment bin, a plurality of ventilation cooling holes are formed in the flow guide partition plate, and a fixed seat is fixedly connected to the top surface of the lifting bearing net below the ventilation cooling holes. A plurality of annularly-distributed elastic clamping jaws are installed at the top of the fixing base, an annular compression air bag is installed at the bottom of the ventilation cooling hole, a plurality of air holes are formed in the inner wall of the annular compression air bag, a balance weight abutting ring is installed at the bottom of the annular compression air bag, and the balance weight abutting ring obliquely abuts against the tops of the elastic clamping jaws. Through the synergistic effect of the flow guide partition plates distributed up and down and the lifting bearing net, three-dimensional airflow circulation is formed in cooperation with the multiple ventilation cooling holes, when the lifting bearing net descends, a cooling medium evenly wraps the surface of a tool, and it is guaranteed that the cooling rate is uniform.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter processing technology, specifically a cooling device for milling cutter production. Background Technology

[0002] During the production process, the milling cutter reaches a high temperature after being cut by the cutting tool, and needs to be cooled before it can continue to be processed.

[0003] Among existing cooling methods, traditional immersion cooling has the problems of large temperature gradient and uneven local cooling, which can easily cause thermal stress deformation of the cutting tool. Air cooling devices mostly use fixed nozzles to provide targeted and uniform cooling for each milling cutter. However, after the milling cutter is immersed and cleaned, the tightness of the clamps needs to be adjusted one by one, which is cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for milling cutter production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cooling device for milling cutter production includes a cooling chamber with guide baffles and a lifting support net arranged vertically inside. The guide baffles have several ventilation and cooling holes. A fixed base is fixedly connected to the top surface of the lifting support net below the ventilation and cooling holes. Several annularly distributed elastic grippers are mounted on the top of the fixed base. An annular compression airbag is mounted at the bottom of the ventilation and cooling holes. The inner wall of the annular compression airbag has several air holes, and a counterweight abutting ring is mounted at the bottom of the annular compression airbag. The counterweight abutting ring is inclined and abuts against the top of the elastic grippers. A pair of turbulence propeller shafts are rotatably mounted at the bottom of the lifting support net. Driven gears are fixedly connected to both ends of the turbulence propeller shafts. A transmission rack that meshes with the driven gears is fixedly connected to the inner wall of the cooling chamber. Elastic abutting rods are slidably mounted on both sides of the top surface of the lifting support net, and the rod heads of the elastic abutting rods abut against the transmission racks.

[0007] Preferably, the top of the cooling chamber is equipped with a chamber cover, and a number of cooling fans are fixedly connected to the bottom of the chamber cover. The cooling fans are located above the guide baffle and are offset from the ventilation and cooling holes.

[0008] Preferably, the fixing base is frustum-shaped, and the fixing base is provided with a limiting insertion hole for the elastic gripper to pass through.

[0009] Preferably, a slider is fixedly connected to the bottom of the elastic gripper, a groove matching the slider is horizontally opened on the top surface of the fixed seat, and a top spring is installed between the slider and the inner wall of the groove.

[0010] Preferably, the top of the elastic gripper is fixedly connected to a wedge-shaped groove, and the bottom of the counterweight abutting ring is inclined against the inner wall of the wedge-shaped groove.

[0011] Preferably, a pair of impellers and blades located between the pair of impellers are mounted on the turbulence propeller shaft, and a ventilation slot is provided through the lifting support net.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, by employing vertically distributed guide baffles and a lifting support net in synergy, and with multiple ventilation and cooling holes forming a three-dimensional airflow circulation, the cooling medium evenly coats the tool surface when the lifting support net descends. At the same time, when the lifting support net raises the fixed seat above the liquid surface, the low-temperature airflow in the cooling chamber blows directly onto the milling cutter through each ventilation and cooling hole, ensuring a uniform cooling rate. After being squeezed by the rising fixed seat, the annular compressed air bag sprays the stored gas onto the milling cutter from multiple angles, achieving gradient cooling while also blowing off some of the attached cooling medium.

[0014] The elastic gripper and the counterweight abutment ring work together to automatically adjust the clamping tightness during the lifting process, keeping the tool clamped while it is immersed in the cooling medium. After the tool is lifted out of the cooling medium and passes through the ventilation and cooling holes, the clamp is released. As the lifting support net descends with the elastic abutment and the turbulence propeller shaft, the transmission rack forces the turbulence propeller shaft to rotate within the cooling medium. At the same time, the elastic abutment that is opposed to it moves back and forth to generate vibration, causing the cooling medium to vibrate and surge in multiple directions within the cooling chamber. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the cooling chamber in this utility model;

[0018] Figure 4 This is an enlarged view of point A in this utility model;

[0019] Figure 5 This is a schematic diagram of the overall structure of the lifting support net in this utility model.

[0020] In the diagram: 1. Cooling chamber; 2. Flow guide baffle; 3. Lifting support net; 301. Ventilation slot; 4. Ventilation and cooling hole; 5. Fixed base; 501. Limiting insertion hole; 6. Elastic gripper; 601. Slider; 502. Slide groove; 602. Top spring; 603. Wedge groove; 7. Annular compression airbag; 701. Air hole; 8. Counterweight abutment ring; 9. Turbine propeller shaft; 901. Impeller; 902. Blade; 903. Driven gear; 11. Transmission rack; 12. Elastic abutment rod; 13. Chamber cover; 14. Cooling fan; 15. Drive motor; 16. Lead screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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 protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings, which illustrate several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example: Please refer to Figure 1-5The cooling device for milling cutter production shown includes a cooling chamber 1. A flow guide baffle 2 and a lifting support net 3 are distributed vertically within the cooling chamber 1. The lifting support net 3 moves vertically below the flow guide baffle 2. A drive motor 15 is installed within the cooling chamber 1. A lead screw 16 is coupled to the output shaft of the drive motor 15. The lead screw 16 has a vertical thread that passes through the lifting support net 3. The drive motor 15 drives the lead screw 16 to rotate, thus lifting the lifting support net 3. Several ventilation and cooling holes 4 are provided on the flow guide baffle 2. A fixed base 5 is fixedly connected to the top surface of the lifting support net 3 below the ventilation and cooling holes 4. Several ring-shaped elastic grippers 6 are installed on the top of the fixed base 5. The elastic grippers 6 cooperate with each other under elastic force to hold the milling cutter, ensuring that the milling cutter is always below the corresponding ventilation and cooling holes 4.

[0026] When the cold airflow circulates downwards along the ventilation and cooling hole 4, it can evenly and specifically cool down each milling cutter. An annular compression airbag 7 is installed at the bottom of the ventilation and cooling hole 4. The inner wall of the annular compression airbag 7 has several air holes 701. After being squeezed by the rising fixed seat 5, the annular compression airbag 7 sprays the stored gas to the milling cutter from multiple angles, achieving gradient cooling while also blowing off some of the attached cooling medium. A counterweight abutment ring 8 is installed at the bottom of the annular compression airbag 7. The counterweight abutment ring 8 can keep the annular compression airbag 7 in an open state under the action of gravity. The counterweight abutment ring 8 is inclined and abuts against the top of the elastic gripper 6. The elastic gripper 6 and the counterweight abutment ring 8 cooperate with each other.

[0027] The clamping tightness can be automatically adjusted during the lifting process, keeping the tool clamped while it is immersed in the cooling medium. After the tool is lifted out of the cooling medium and passes through the ventilation and cooling hole 4, the clamp is released. A pair of turbulence propeller shafts 9 are rotatably installed at the bottom of the lifting support net 3. Both ends of the turbulence propeller shafts 9 are fixedly connected to driven gears 903. The inner wall of the cooling treatment chamber 1 is fixedly connected to a transmission rack 11 that meshes with the driven gears 903. Elastic abutment rods 12 are slidably installed on both sides of the top surface of the lifting support net 3. The rod head of the elastic abutment rod 12 abuts against the transmission rack 11. During the process of the lifting support net 3 descending with the elastic abutment rods 12 and the turbulence propeller shafts 9, the transmission rack 11 forces the turbulence propeller shafts 9 to rotate in the cooling medium. At the same time, the elastic abutment rods 12 that abut against it move back and forth to generate vibration, causing the cooling medium to vibrate and surge in multiple directions in the cooling treatment chamber 1.

[0028] In this embodiment, a cover 13 is installed on the top of the cooling chamber 1, and several cooling fans 14 are fixedly connected to the bottom of the cover 13. The cooling fans 14 are located above the guide baffle 2 and are offset from the ventilation and cooling holes 4. After the milling cutter is clamped and fixed by the elastic claw 6, the cooling fans 14 blow the cooling airflow vertically onto the surface of the guide baffle 2. After the airflow is blocked by the guide baffle 2, it flows downward along each ventilation and cooling hole 4, which blows air to cool the milling cutter below each ventilation and cooling hole 4. This can pre-cool the milling cutter before it is immersed in the cooling medium and blow away the medium residue attached to its surface after the milling cutter rises from the cooling medium.

[0029] In this embodiment, the fixed base 5 is frustum-shaped, and a limiting insertion hole 501 is provided on the fixed base 5 for the elastic gripper 6 to pass through. The frustum-shaped fixed base 5 and the annular compressed air bag 7 are compatible with each other, so that the gas ejected by the annular compressed air bag 7 after being compressed can be blown more evenly and comprehensively to the milling cutter and the fixed base 5. At the same time, the limiting insertion hole 501 on the fixed base 5 can prevent the elastic gripper 6 from shifting after multiple tightening and loosening, thus ensuring the stability of the structure.

[0030] In this embodiment, a slider 601 is fixedly connected to the bottom of the elastic gripper 6. A groove 502 matching the slider 601 is horizontally opened on the top surface of the fixed base 5. A top spring 602 is installed between the slider 601 and the inner wall of the groove 502. When the lifting support net 3 moves the fixed base 5 downward, the counterweight abutment ring 8 gradually loosens the elastic gripper 6. The elastic restoring force of the top spring 602 pushes the slider 601 to slide along the groove 502 toward the center, forcing the elastic gripper 6 to retract inward and clamp the milling cutter shank. When the lifting support net 3 rises, the counterweight abutment ring 8 gradually presses against the inclined surface on the elastic gripper 6, driving the slider 601 to slide outward along the groove 502 and compress the top spring 602. At this time, the six elastic grippers 6 expand outward simultaneously to release the clamping force, achieving multiple effects of soaking and locking the milling cutter, lifting and unlocking. No manual operation is required, avoiding the difficulty of taking the milling cutter out during processing.

[0031] In this embodiment, a wedge-shaped groove 603 is fixedly connected to the top of the elastic gripper 6, and the bottom of the counterweight abutting ring 8 is inclined against the inner wall of the wedge-shaped groove 603. When the bottom of the counterweight abutting ring 8 is pressed into the wedge-shaped groove 603, each elastic gripper is in an open state. By opening the wedge-shaped groove 603, the position of the counterweight abutting ring 8 can also be restricted, so as to prevent the counterweight abutting ring 8 from shifting excessively after being compressed, prevent the annular compression airbag 7 from being excessively twisted, and extend the service life of the annular compression airbag 7.

[0032] In this embodiment, a pair of impellers 901 and blades 902 located between the pair of impellers 901 are installed on the turbulence propeller shaft 9. A ventilation slot 301 is provided through the lifting support net 3. When the lifting support net 3 descends and drives the turbulence propeller shaft 9 to rotate, if the blades 902 have not yet been immersed in the cooling medium, the cold air below the lifting support net 3 is accelerated by the blades 902 and forms a spiral upward airflow, which is transported to the surface of each milling cutter along the ventilation slot 301, so that the cold air forms a countercurrent circulation in the space above and below the lifting support net 3. Then, the lifting support net 3 continues to descend, allowing the impellers 901 and blades 902 to stir the cooling medium under the action of centrifugal force. Combined with the high-frequency oscillation generated by the reciprocating movement of the elastic abutment rod 12 on the lifting support net 3, the heat exchange efficiency of the milling cutter during immersion is significantly improved, and the cooling dead zone caused by traditional propeller blades is eliminated.

[0033] Working principle: The drive motor 15 drives the lead screw 16 to rotate, so that the lifting support net 3 can achieve the lifting function. The elastic grippers 6 cooperate with each other to hold the milling cutter under the elastic force, so that the milling cutter is always below the corresponding ventilation and cooling hole 4. When the cold air flows downward along the ventilation and cooling hole 4, it can blow air to cool each milling cutter evenly and in a targeted manner. After being squeezed by the rising fixed seat 5, the annular compression air bag 7 sprays the stored gas to the milling cutter from multiple angles to achieve gradient cooling, while also blowing off some of the attached cooling medium. The bottom of the annular compression air bag 7 is equipped with a counterweight abutment ring 8, which can keep the annular compression air bag 7 in an open state under the action of gravity.

[0034] The elastic gripper 6 and the counterweight abutment ring 8 work together to automatically adjust the clamping tightness during the lifting process, keeping the tool clamped when it is immersed in the cooling medium. After the cooling medium rises and passes through the ventilation and cooling hole 4, the clamp is released. As the lifting support net 3 descends with the elastic abutment rod 12 and the turbulence propeller shaft 9, the transmission rack 11 forces the turbulence propeller shaft 9 to rotate in the cooling medium. At the same time, the elastic abutment rod 12 moves back and forth to generate vibration, causing the cooling medium to vibrate and surge in multiple directions in the cooling treatment chamber 1.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for milling cutter production, comprising a cooling chamber (1), characterized in that: The cooling chamber (1) is provided with a flow guide baffle (2) and a lifting support net (3) distributed vertically. The flow guide baffle (2) has several ventilation and cooling holes (4). The top surface of the lifting support net (3) is fixedly connected to a fixed seat (5) below the ventilation and cooling holes (4). The top of the fixed seat (5) is equipped with several ring-shaped elastic claws (6). The bottom of the ventilation and cooling hole (4) is equipped with an annular compression airbag (7). The inner wall of the annular compression airbag (7) is provided with several air holes (701). The bottom of the annular compression airbag (7) is equipped with a counterweight abutment ring (8). The counterweight abutment ring (8) is inclined and abuts against the top of the elastic gripper (6). The bottom of the lifting support net (3) is rotatably equipped with a pair of turbulence propeller shafts (9). Both ends of the turbulence propeller shafts (9) are fixedly connected with driven gears (903). The inner wall of the cooling treatment chamber (1) is fixedly connected with a transmission rack (11) that meshes with the driven gears (903). Both sides of the top surface of the lifting support net (3) are slidably equipped with elastic abutment rods (12). The rod head of the elastic abutment rod (12) abuts against the transmission rack (11).

2. The cooling device for milling cutter production according to claim 1, characterized in that: The cooling chamber (1) is equipped with a chamber cover (13) on top. Several cooling fans (14) are fixedly connected to the bottom of the chamber cover (13). The cooling fans (14) are located above the flow guide plate (2) and are offset from the ventilation and cooling holes (4).

3. A cooling device for milling cutter production according to claim 1, characterized in that: The fixing base (5) is frustum shaped, and a limiting insertion hole (501) is provided on the fixing base (5) for the elastic gripper (6) to pass through.

4. A cooling device for milling cutter production according to claim 1, characterized in that: The elastic gripper (6) is fixedly connected to a slider (601) at its bottom. The top surface of the fixed base (5) is horizontally provided with a groove (502) that matches the slider (601). A top spring (602) is installed between the slider (601) and the inner wall of the groove (502).

5. A cooling device for milling cutter production according to claim 1, characterized in that: The top of the elastic gripper (6) is fixedly connected to a wedge groove (603), and the bottom of the counterweight abutting ring (8) is inclined against the inner wall of the wedge groove (603).

6. A cooling device for milling cutter production according to claim 1, characterized in that: The spoiler shaft (9) is equipped with a pair of impellers (901) and blades (902) located between the pair of impellers (901), and the lifting support net (3) is provided with a ventilation slot (301).

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