High-speed feeding transmission mechanism of milling head

Abstract

The utility model discloses a high-speed feeding transmission mechanism of a milling head, which relates to the technical field of milling head feeding and comprises a box body, a transmission box is fixedly connected to the upper side of the box body, an oil pump is fixedly mounted at the center of the upper side of the transmission box, and the output end of the oil pump penetrates through a top plate of the transmission box and is fixedly connected with an oil conveying pipe. A first oil outlet pipe is fixedly connected to the left end of the oil conveying pipe, a second oil outlet pipe is fixedly connected to the right end of the oil conveying pipe, an air pipe is fixedly connected to the center of the right side of the transmission box, and a fan is fixedly installed on the right side in the air pipe. By arranging the oil pump, the oil conveying pipe, the first oil outlet pipe, the second oil outlet pipe, the heat dissipation groove, the air pipe and the draught fan, oil spraying lubrication can be effectively conducted on the gear meshing position, friction force between gears is effectively reduced, serious abrasion is avoided, meanwhile, the temperature of the gears is effectively prevented from rising sharply, and thermal expansion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of milling head feeding, in particular to a high-speed feeding transmission mechanism of a milling head. Background Art

[0002] The milling head is a key component of the milling machine used for cutting workpieces. It usually includes tool clamping, rotation and feeding functions. Its design and performance directly affect the processing accuracy, efficiency and workpiece quality. The milling head is widely used in the cutting, forming and processing of metal materials, such as milling, grooving, drilling, etc. In the mold manufacturing industry, the milling head is used to finish the mold surface, improve the accuracy and smoothness of the mold, and is used for the processing of high-precision, high-strength materials to ensure product performance and safety.

[0003] When processing metal, the milling head needs to be fed at high speed to mill the metal. In the general transmission structure, the friction between the meshing gears increases under high-speed transmission state, which is prone to serious wear and tear, greatly reducing the service life of the transmission structure. At the same time, under the state of high-speed friction, the temperature of the gears will rise sharply, causing thermal expansion, seriously affecting the transmission accuracy. When the milling head is fed at high speed, it is difficult to adjust the speed of the general transmission structure. When making some workpieces with strict requirements, the feed speed of the milling head is difficult to control, and it is easy to over-process the metal. In view of the above problems, a high-speed feed transmission mechanism of the milling head is proposed to solve them. Utility Model Content

[0004] In order to solve the above technical problems, a high-speed feed transmission mechanism for a milling head is provided, which solves the above-mentioned problem that when processing metal, the milling head needs to feed at high speed to mill the metal. In the general transmission structure, the friction between the meshing gears increases under the high-speed transmission state, which is prone to more serious wear and tear, greatly reducing the service life of the transmission structure. At the same time, under the high-speed friction state, the temperature of the gears will rise sharply, causing thermal expansion, seriously affecting the transmission accuracy. When the milling head is fed at high speed, it is difficult to adjust the speed of the general transmission structure. When producing some workpieces with strict requirements, the feed speed of the milling head is difficult to control, and it is easy to over-process the metal.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: a high-speed feed transmission mechanism of a milling head, comprising a box body, the upper side of the box body is fixedly connected to a transmission box, a rotating support is fixedly installed at the center position of the lower side of the interior of the box body, a threaded rod is rotatably connected to the interior of the rotating support, a lifting block is threadedly connected to the surface of the threaded rod, a lifting frame is fixedly connected to the front and rear sides of the lifting block, the upper side of the threaded rod is fixedly connected to the rotating rod, the upper side of the rotating rod passes through the bottom plate of the transmission box and is fixedly connected to the middle gear, the upper center position of the middle gear is fixedly connected to a small gear through a connecting rod, an oil pump is fixedly installed at the center position of the upper side of the transmission box, the The output end of the oil pump passes through the top plate of the transmission case and is fixedly connected to an oil pipe, the left end of the oil pipe is fixedly connected to a first oil outlet pipe, and the right end of the oil pipe is fixedly connected to a second oil outlet pipe. A high-speed motor is fixedly installed on the upper left end of the transmission case, and the output end of the high-speed motor passes through the top plate of the transmission case and is fixedly connected to a high-speed large gear, which is engaged with a small gear, and a speed reduction motor is fixedly installed on the upper right end of the transmission case, and the output end of the speed reduction motor passes through the top plate of the transmission case and is fixedly connected to a speed reduction large gear, which is engaged with a middle gear, and an air duct is fixedly connected to the right center position of the transmission case, and a fan is fixedly installed on the right side of the air duct.

[0006] Preferably, T-shaped slots are provided on both left and right sides of the interior of the box body, and connecting plates are fixedly connected to both left and right sides of the lifting block, and the outer ends of the connecting plates are slidably connected to the interior of the T-shaped slots through T-shaped sliders.

[0007] Preferably, the lower end of the lifting frame passes through the bottom plate of the box body and is fixedly mounted with a milling box.

[0008] Preferably, a temperature sensor is fixedly installed on the inner rear side of the transmission case.

[0009] Preferably, a first electromagnetic valve is fixedly installed on the first oil outlet pipe.

[0010] Preferably, a second electromagnetic valve is fixedly installed on the second oil outlet pipe.

[0011] Preferably, a plurality of heat dissipation slots are provided through the left side of the transmission case.

[0012] Compared with the prior art, the advantages of the present invention are: the present invention can effectively spray oil and lubricate the gear meshing points by arranging an oil pump, an oil pipeline, a first oil outlet pipe, a second oil outlet pipe, a heat dissipation groove, an air duct and a fan, effectively reduce the friction between the gears, avoid more serious wear, and effectively increase the service life of the transmission structure. At the same time, it can effectively prevent the temperature of the gears from rising sharply, avoid thermal expansion, and ensure transmission accuracy. By arranging a threaded rod, a lifting block, a middle gear, a small gear, a high-speed motor, a speed reduction motor, a high-speed large gear and a speed reduction large gear, it can effectively perform speed adjustment, effectively control the milling feed speed, and avoid excessive processing of metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the box in the present utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the transmission box in the present utility model.

[0016] The numbers in the figure are:

[0017] 1. Box body; 2. Transmission box; 3. Rotating support; 4. Threaded rod; 5. Lifting block; 6. T-shaped slide; 7. Connecting plate; 8. Lifting frame; 9. Milling box; 10. Rotating rod; 11. Middle gear; 12. Small gear; 13. Temperature sensor; 14. Oil pump; 15. Oil pipeline; 16. First oil outlet pipe; 17. First solenoid valve; 18. Second oil outlet pipe; 19. Second solenoid valve; 20. High-speed motor; 21. High-speed gear; 22. Speed ​​reduction motor; 23. Speed ​​reduction gear; 24. Heat sink; 25. Air duct; 26. Fan. DETAILED DESCRIPTION

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0019] Reference Figure 1-3The figure shows a high-speed feed transmission mechanism of a milling head, comprising a box body 1, the upper side of the box body 1 is fixedly connected to the transmission box 2, a rotating support 3 is fixedly installed at the center position of the lower side of the box body 1, the internal rotation connection of the rotating support 3 is a threaded rod 4, and the surface of the threaded rod 4 is threadedly connected to a lifting block 5. T-shaped slots 6 are opened on the left and right sides of the interior of the box body 1, and the left and right sides of the lifting block 5 are fixedly connected to connecting plates 7. The outer ends of the connecting plates 7 are slidably connected to the internal of the T-shaped slots 6 through T-shaped sliders to ensure that the lifting block 5 can move linearly in the up and down directions. The front and back sides of the lifting block 5 are fixedly connected to a lifting frame 8, the lower end of the lifting frame 8 passes through the bottom plate of the box body 1 and is fixedly installed with a milling box 9, and the lower end of the milling box 9 is clamped with a milling cutter, the upper side of the threaded rod 4 is fixedly connected to a rotating rod 10, the upper side of the rotating rod 10 passes through the bottom plate of the transmission box 2 and is fixedly connected to a middle gear 11, and the upper center position of the middle gear 11 is fixedly connected to a pinion 12 through a connecting rod.

[0020] A temperature sensor 13 is fixedly installed on the inner rear side of the transmission box 2 to monitor the internal temperature of the transmission box 2 in real time. An oil pump 14 is fixedly installed at the center position of the upper side of the transmission box 2. The output end of the oil pump 14 passes through the top plate of the transmission box 2 and is fixedly connected to an oil pipe 15. The left end of the oil pipe 15 is fixedly connected to a first oil outlet pipe 16. A first electromagnetic valve 17 is fixedly installed on the first oil outlet pipe 16 to effectively control the oil output of the first oil outlet pipe 16. The right end of the oil pipe 15 is fixedly connected to a second oil outlet pipe 18. A second electromagnetic valve 19 is fixedly installed on the second oil outlet pipe 18 to effectively control the oil output of the second oil outlet pipe 18. A high-speed electric Machine 20, the output end of the high-speed motor 20 passes through the top plate of the transmission box 2 and is fixedly connected to the high-speed large gear 21, the high-speed large gear 21 is engaged with the small gear 12, and the speed is effectively adjusted. A speed reduction motor 22 is fixedly installed on the upper right end of the transmission box 2, and the output end of the speed reduction motor 22 passes through the top plate of the transmission box 2 and is fixedly connected to the speed reduction large gear 23, the speed reduction large gear 23 is engaged with the middle gear 11, and the speed is effectively adjusted. A number of heat dissipation slots 24 are opened on the left side of the transmission box 2, and an air duct 25 is fixedly connected to the center position of the right side of the transmission box 2. A fan 26 is fixedly installed on the right side of the air duct 25, which effectively promotes air circulation and reduces the temperature inside the transmission box 2.

[0021] Working principle: The milling cutter is installed under the milling box 9, and the high-speed motor 20 drives the high-speed large gear 21 to rotate. The corresponding small gear 12 and the threaded rod 4 will rotate at a higher speed. Under the restrictions of the connecting plate 7 and the T-shaped slide 6, the lifting block 5, the lifting frame 8 and the milling cutter will perform rapid lifting and lowering linear motion to complete the high-speed feeding of the milling head. When the feed speed needs to be reduced, the power output of the high-speed motor 20 can be reduced or stopped. At the same time, the speed reduction motor 22 is started to drive the middle gear 11 through the speed reduction large gear 23 to effectively adjust the rotation speed of the threaded rod 4. Before and after high-speed feeding, the first solenoid valve 17 and the second solenoid valve 19 will open, and the first oil outlet pipe 16 and the second oil outlet pipe 18 located above the gear meshing point will spray lubricating oil to lubricate the gears and reduce friction. During the high-speed feeding process, the fan 26 will accelerate the air circulation inside the transmission box 2 and discharge the heat generated by the gear rotation from the heat dissipation groove 24.

[0022] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed feed transmission mechanism for a milling head, comprising a housing (1), characterized in that: The upper side of the box body (1) is fixedly connected to the transmission box (2), and a rotating support (3) is fixedly installed at the center position of the lower side of the inner side of the box body (1). The inner side of the rotating support (3) is rotatably connected to a threaded rod (4), and the surface of the threaded rod (4) is threadedly connected to a lifting block (5). The front and rear sides of the lifting block (5) are fixedly connected to a lifting frame (8). The upper side of the threaded rod (4) is fixedly connected to a rotating rod (10). The upper side of the rotating rod (10) passes through the bottom plate of the transmission box (2) and is fixedly connected to a middle gear (11). The upper center position of the middle gear (11) is fixedly connected to a small gear (12) through a connecting rod. An oil pump (14) is fixedly installed at the center position of the upper side of the transmission box (2). The output end of the oil pump (14) passes through the top plate of the transmission box (2) and is fixedly connected to an oil pipe (15). The left end of the oil delivery pipe (15) is fixedly connected to the first oil outlet pipe (16), and the right end of the oil delivery pipe (15) is fixedly connected to the second oil outlet pipe (18). A high-speed motor (20) is fixedly installed on the left end of the upper side of the transmission box (2). The output end of the high-speed motor (20) passes through the top plate of the transmission box (2) and is fixedly connected to a high-speed large gear (21). The high-speed large gear (21) is meshed with the small gear (12). A speed reduction motor (22) is fixedly installed on the right end of the upper side of the transmission box (2). The output end of the speed reduction motor (22) passes through the top plate of the transmission box (2) and is fixedly connected to a speed reduction large gear (23). The speed reduction large gear (23) is meshed with the middle gear (11). An air duct (25) is fixedly connected to the center position of the right side of the transmission box (2). A fan (26) is fixedly installed on the right side of the air duct (25).

2. The high-speed feed transmission mechanism of a milling head according to claim 1, characterized in that: T-shaped chute (6) is provided on both the left and right sides of the interior of the box body (1), and connecting plates (7) are fixedly connected to both the left and right sides of the lifting block (5), and the outer ends of the connecting plates (7) are slidably connected to the interior of the T-shaped chute (6) via T-shaped sliders.

3. The high-speed feed transmission mechanism of a milling head according to claim 1, characterized in that: The lower end of the lifting frame (8) passes through the bottom plate of the box body (1) and is fixedly mounted with a milling box (9).

4. The high-speed feed transmission mechanism of a milling head according to claim 1, characterized in that: A temperature sensor (13) is fixedly installed on the inner rear side of the transmission box (2).

5. The high-speed feed transmission mechanism of a milling head according to claim 1, characterized in that: A first electromagnetic valve (17) is fixedly mounted on the first oil outlet pipe (16).

6. The high-speed feed transmission mechanism of a milling head according to claim 1, characterized in that: A second electromagnetic valve (19) is fixedly mounted on the second oil outlet pipe (18).

7. The high-speed feed transmission mechanism of a milling head according to claim 1, characterized in that: A plurality of heat dissipation slots (24) are provided through the left side of the transmission box (2).

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