Rotatable milling head for screw numerical control machine tool

Abstract

The utility model relates to the technical field of milling heads for screw numerical control machine tools, and discloses a rotatable milling head for a screw numerical control machine tool, which comprises a machine tool, a connecting block and a U-shaped limit frame, the adjusting mechanism comprises an L-shaped plate, a servo motor, a rotating rod, a screw rod, a first belt wheel, a transmission belt, a second belt wheel, a connecting rod, a first gear and a second gear, and the front face of the L-shaped plate is fixedly connected with the back face of the connecting block. According to the rotatable milling head for the screw numerical control machine tool, through the use of a connecting block, an L-shaped plate, a servo motor, a rotating rod and a screw, the front-back position of a threaded moving block can be adjusted, the effect of synchronously adjusting the front-back position of a milling head body is achieved, and then the problem how to machine different positions according to the reality is solved; and the effect of adjusting the milling head body in multiple aspects can be achieved, and the effect that the milling head is more widely used in practice is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw numerical control machine tool milling head technical field, concretely is a kind of screw numerical control machine tool milling head that can rotate. BACKGROUND

[0002] Screw numerical control machine tool is the high-precision numerical control equipment specially used for processing screw parts (such as screw, worm, screw pump rotor etc.), combines numerical control technology and traditional screw processing technology, is applicable to high-precision, complex helical surface high-efficiency processing, milling head is the key accessory in screw processing, and complex helical surface high-efficiency milling is realized by adjusting tool angle, especially suitable for the processing of large lead, variable pitch or special-shaped screw.

[0003] According to the milling head of a numerical control machine tool and the numerical control machine tool of application No.

[0004] But there are still the following problems in actual use process:

[0005] (1) when processing, only the up-down position of hydraulic cylinder can be adjusted, different positions cannot be processed according to actual processing requirements, so the processing range in practice will be reduced, and the corresponding processing efficiency will also be reduced.

[0006] (2) when using, it is processed by automatically switching different types of milling cutters, but only one type of milling cutter can be used at a time, when different types of milling cutters are needed, the overall convenience of the equipment is poor, other different types of equipment need to be used, the milling cutter cannot be replaced, and the actual use effect is reduced.

[0007] Therefore, the utility model provides a screw numerical control machine tool milling head that can rotate. UTILITY MODEL CONTENTS

[0008] In view of the deficiencies of the prior art, the utility model provides a screw numerical control machine tool milling head that can rotate, which has the advantages of being able to conveniently adjust the position and angle of the milling cutter and being able to conveniently replace different types of milling cutters, and solves the problems raised in the background art.

[0009] The utility model provides the following technical scheme: A kind of rotatable milling head for screw numerical control machine tool, including machine tool, connecting block and U-shaped limiting frame, the lower surface of connecting block is provided with adjusting mechanism, the adjusting mechanism includes L-shaped plate, servo motor, rotating rod, screw, belt pulley one, transmission belt, belt pulley two, connecting rod, gear one and gear two, the front surface of L-shaped plate is fixedly connected with the back surface of connecting block, the front surface of servo motor is fixedly installed with the back surface of L-shaped plate, one end of rotating rod is fixedly connected with the output shaft of servo motor, one end of screw is fixedly installed with the other end of rotating rod, the inside of belt pulley one is fixedly installed with the outer surface of rotating rod, the inner ring of transmission belt is transmissionally connected with the outer surface of belt pulley one, the outer surface of belt pulley two is transmissionally connected with the inner ring of transmission belt, the outer surface of connecting rod is fixedly installed with the inside of belt pulley two, the inside of gear one is fixedly installed with the outer surface of connecting rod, the outer surface of gear two is engaged with the outer surface of gear one.

[0010] Preferably, the two sides of the U-shaped limiting frame are provided with a replacement mechanism, the replacement mechanism includes a milling head body, a limiting bolt, an abutting pad and a screwing stud, the top of the milling head body abuts against the top end inside the U-shaped limiting frame, the right side of the abutting pad abuts against the left side of the milling head body, the outer surface of the screwing stud is threadedly connected with the inner wall of the U-shaped limiting frame, and one end of the screwing stud abuts against the left side of the abutting pad, the inside of the limiting bolt is threadedly connected with the outer surface of the screwing stud, and the right side of the limiting bolt is fixedly abutted against the left side of the U-shaped limiting frame.

[0011] Preferably, the outer surface of the screw is rotatably connected with the inner wall of the connecting block, and the outer surface of the connecting rod is rotatably connected with the inner wall of the connecting block.

[0012] Preferably, the outer surface of the screw is threadedly connected with a threaded moving block, the inside of the threaded moving block is rotatably connected with a connecting shaft, and the outer surface of the connecting shaft is fixedly installed with the inside of the gear two.

[0013] Preferably, the bottom of the connecting shaft is fixedly installed with a rotating block, and the lower surface of the rotating block is fixedly connected with the upper surface of the U-shaped limiting frame.

[0014] Preferably, the periphery of the bottom of the machine tool is fixedly installed with a support frame, the two sides of the upper surface of the machine tool are fixedly installed with a connecting frame, the front surface of the connecting frame is fixedly installed with a connecting plate, and the central position of the upper surface of the machine tool is fixedly installed with a placing plate.

[0015] Preferably, the connecting plate is provided with an electric telescopic rod inside, and a movable receiving plate is fixedly installed at one end of the electric telescopic rod. The outer surface of the movable receiving plate is slidably connected to the inner wall of the connecting plate, and a hydraulic cylinder is provided on the upper surface of the movable receiving plate. One end of the output shaft of the hydraulic cylinder is fixedly installed to the top of the connecting block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This type of rotary milling head for screw CNC machine tools, through the use of connecting blocks, L-shaped plates, servo motors, rotating rods, and screws, allows for adjustment of the forward and backward position of the threaded moving block, achieving synchronous adjustment of the forward and backward position of the milling head body. Through the use of pulley one, transmission belt, pulley two, connecting rod, gear one, threaded moving block, connecting shaft, gear two, and rotating block, the forward and backward position of the milling head body can be adjusted while its angle is changed. By controlling the number of rotations of the servo motor, the angle of the milling head body can be varied in multiple ways. This solves the problem of how to process different positions according to actual needs, achieving multi-faceted adjustment of the milling head body, resulting in wider applicability and improved processing efficiency.

[0018] 2. This type of rotary milling head for screw CNC machine tools, through the use of a rotating block, a U-shaped limit frame, and the milling head body, allows the milling head body to be positioned on opposite sides inside the U-shaped limit frame, achieving convenient placement and use. The use of limit bolts, abutment washers, and tightening studs provides stable positioning of the milling head body. Furthermore, the milling head body can be replaced according to different usage scenarios, achieving convenient operation and solving the problem of how to replace the milling head body. This makes replacing the milling head body more convenient, improving the versatility of equipment operation and enhancing its practical application. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the rear view structure;

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the adjustment mechanism;

[0022] Figure 4 This utility model Figure 1 A schematic diagram of the replacement mechanism.

[0023] In the figure: 1, machine tool; 2, support frame; 3, connecting frame; 4, connecting plate; 5, placing plate; 6, electric telescopic rod; 7, moving bearing plate; 8, hydraulic cylinder; 9, connecting block; 10, L-shaped plate; 11, servo motor; 12, rotating rod; 13, screw rod; 14, pulley one; 15, transmission belt; 16, pulley two; 17, connecting rod; 18, gear one; 19, threaded moving block; 20, connecting shaft; 21, gear two; 22, rotating block; 23, U-shaped limiting frame; 24, milling head main body; 25, limiting bolt; 26, abutting pad; 27, screwing stud; 28, adjusting mechanism; 29, replacing mechanism. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figure 3 A kind of screw numerical control machine tool can be rotated milling head, including machine tool 1, connecting block 9 and U-shaped limiting frame 23, the lower surface of connecting block 9 is provided with adjusting mechanism 28, adjusting mechanism 28 includes L-shaped plate 10, servo motor 11, rotating rod 12, screw rod 13, pulley one 14, transmission belt 15, pulley two 16, connecting rod 17, gear one 18 and gear two 21, the front surface of L-shaped plate 10 is fixedly connected with the back surface of connecting block 9, the front surface of servo motor 11 is fixedly installed with the back surface of L-shaped plate 10, one end of rotating rod 12 is fixedly connected with the output shaft of servo motor 11, one end of screw rod 13 is fixedly installed with the other end of rotating rod 12, the inside of pulley one 14 is fixedly installed with the outer surface of rotating rod 12, the inner ring of transmission belt 15 is transmissionally connected with the outer surface of pulley one 14, the outer surface of pulley two 16 is transmissionally connected with the inner ring of transmission belt 15, the outer surface of connecting rod 17 is fixedly installed with the inside of pulley two 16, the inside of gear one 18 is fixedly installed with the outer surface of connecting rod 17, the outer surface of gear two 21 is engaged with the outer surface of gear one 18, the outer surface of screw rod 13 is rotationally connected with the inner wall of connecting block 9, the outer surface of connecting rod 17 is rotationally connected with the inner wall of connecting block 9, the outer surface of screw rod 13 is threadedly connected with threaded moving block 19, the inside of threaded moving block 19 is rotationally connected with connecting shaft 20, the outer surface of connecting shaft 20 is fixedly installed with the inside of gear two 21, rotating block 22 is fixedly installed at the bottom of connecting shaft 20, the lower surface of rotating block 22 is fixedly connected with the upper surface of U-shaped limiting frame 23.

[0026] The fixed connection of the L-shaped plate 10 and the connecting block 9 and the fixed installation of the servo motor 11 and the L-shaped plate 10 provide a stable basis for subsequent power transmission, so that the servo motor 11 can stably drive the movement of the subsequent components. The fixed installation of the belt pulley one 14 and the outer surface of the rotating rod 12, the transmission connection of the transmission belt 15 and the outer surface of the belt pulley one 14, and the transmission connection of the belt pulley two 16 and the inner circle of the transmission belt 15 realize the transmission of the rotation of the rotating rod 12 to the connecting rod 17 through the belt transmission, so as to realize the transmission effect of power between different shafts. The threaded connection of the screw rod 13 and the threaded moving block 19 enables the rotation of the screw rod 13 to drive the axial movement of the threaded moving block 19 along the screw rod 13, so as to realize the conversion of the rotation of the screw rod 13 into the linear motion of the threaded moving block 19, and achieve the purpose of accurately controlling the position of the threaded moving block 19.

[0027] Please refer to Figure 4 The two sides of the U-shaped limiting frame 23 are provided with a replacement mechanism 29, which comprises a milling head body 24, a limiting bolt 25, an abutting pad 26 and a screwing stud 27. The top of the milling head body 24 abuts against the top end inside the U-shaped limiting frame 23. The right side of the abutting pad 26 abuts against the left side of the milling head body 24. The outer surface of the screwing stud 27 is threadedly connected with the inner wall of the U-shaped limiting frame 23, and one end of the screwing stud 27 abuts against the left side of the abutting pad 26. The inside of the limiting bolt 25 is threadedly connected with the outer surface of the screwing stud 27, and the right side of the limiting bolt 25 is fixedly abutted against the left side of the U-shaped limiting frame 23.

[0028] The right side of the abutting pad 26 abuts against the left side of the milling head body 24, so that the abutting pad 26 can exert a lateral force on the milling head body 24, thereby achieving the effect of preliminarily fixing the milling head body 24. The outer surface of the screwing stud 27 is threadedly connected with the inner wall of the U-shaped limiting frame 23, and one end of the screwing stud 27 abuts against the left side of the abutting pad 26. When the screwing stud 27 is rotated, the abutting pad 26 is pushed to move towards the milling head body 24, thereby further pressing the milling head body 24, so as to achieve the effect of controlling the fixing force of the milling head body 24 by adjusting the screwing stud 27. The inside of the limiting bolt 25 is threadedly connected with the outer surface of the screwing stud 27, and the right side of the limiting bolt 25 is fixedly abutted against the left side of the U-shaped limiting frame 23, so that the limiting bolt 25 can limit the axial movement of the screwing stud 27, thereby preventing the screwing stud 27 from loosening due to vibration during processing, and achieving the effect of limiting and fixing the screwing stud 27.

[0029] Please refer to Figure 1 and Figure 2The bottom of the machine tool 1 is fixedly installed with support frames 2 around, both sides of the upper surface of the machine tool 1 are fixedly installed with connecting frames 3, the front surface of the connecting frame 3 is fixedly installed with a connecting plate 4, the central position of the upper surface of the machine tool 1 is fixedly installed with a placing plate 5, the inside of the connecting plate 4 is provided with an electric telescopic rod 6, one end of the electric telescopic rod 6 is fixedly installed with a moving receiving plate 7, the outer surface of the moving receiving plate 7 is in sliding connection with the inner wall of the connecting plate 4, the upper surface of the moving receiving plate 7 is provided with a hydraulic cylinder 8, and one end of the output shaft of the hydraulic cylinder 8 is fixedly installed with a connecting block 9.

[0030] The bottom of the machine tool 1 is fixedly installed with support frames 2 around, both sides of the upper surface of the machine tool 1 are fixedly installed with connecting frames 3, the front surface of the connecting frame 3 is fixedly installed with a connecting plate 4, the central position of the upper surface of the machine tool 1 is fixedly installed with a placing plate 5, the inside of the connecting plate 4 is provided with an electric telescopic rod 6, one end of the electric telescopic rod 6 is fixedly installed with a moving receiving plate 7, the outer surface of the moving receiving plate 7 is in sliding connection with the inner wall of the connecting plate 4, the upper surface of the moving receiving plate 7 is provided with a hydraulic cylinder 8, and one end of the output shaft of the hydraulic cylinder 8 is fixedly installed with a connecting block 9.

[0031] The working principle is that when the position angle of the milling head body 24 is changed, the workpiece to be processed is placed on the upper surface of the placement plate 5, and the external limiting mechanism is used to limit the workpiece to be processed. Then, the power of the external power source is electrically connected to provide power for the use of the electric telescopic rod 6, the servo motor 11 and the hydraulic cylinder 8. The position of the movable receiving plate 7 is moved left and right on the inner wall of the connecting plate 4 by the electric telescopic rod 6. After moving according to the actual processing condition, the left and right positions of the milling head body 24 are changed synchronously. Then, the position of the milling head body 24 is lowered and raised to the relevant position by the power of the hydraulic cylinder 8. Then, the rotation of the rotating rod 12 fixedly connected to the output shaft of the servo motor 11 is driven by the power of the servo motor 11. When the rotating rod 12 rotates, the screw rod 13 fixedly installed at one end of the rotating rod 12 rotates in the inner wall of the connecting block 9. The front and rear positions of the threaded moving block 19 are changed, thereby driving the front and rear positions of the milling head body 24 to change. When the front and rear positions of the milling head body 24 change, the transmission of the transmission belt 15 is driven by the transmission operation of the belt pulley I 14 fixedly installed on the outer surface of the rotating rod 12 and the belt pulley II 16 drivenly connected to the inner circle of the transmission belt 15. The transmission belt 15 is driven to rotate synchronously. When the belt pulley II 16 rotates, the connecting rod 17 fixedly installed in the belt pulley II 16 can rotate in the inner wall of the L-shaped plate 10 and the connecting block 9, and drive the meshing of the gear I 18 and the gear II 21. When the gear I 18 and the gear II 21 mesh, the rotation of the connecting shaft 20 fixedly installed in the gear II 21 is driven. When the connecting shaft 20 rotates, the rotating block 22 fixedly installed on the outer surface of the connecting shaft 20 can rotate, so that the angle of the milling head body 24 can be changed. In use, the output number of the servo motor 11 is controlled to adjust the specific use angle of the milling head body 24.

[0032] When the milling head body 24 is replaced, the limiting bolt 25 is taken out from both sides of the U-shaped limiting frame 23. Then, the screw post 27 is taken out from the inside of the U-shaped limiting frame 23. Finally, the abutting pad 26 is separated from both sides of the milling head body 24, so that the two sides of the milling head body 24 are not limited by the limiting force, and the milling head body 24 can be replaced. After replacement is completed, the new milling head body 24 is placed at the top of the inside of the U-shaped limiting frame 23. Then, the abutting pad 26 is placed on both sides of the milling head body 24. Then, the screw post 27 is connected to the inside of the U-shaped limiting frame 23, and the abutting pad 26 is abutted to stably limit the position of the milling head body 24. Finally, the inside of the limiting bolt 25 is threadedly connected to the outer surface of the screw post 27, and one side of the limiting bolt 25 is abutted to one side of the U-shaped limiting frame 23, so that the replacement of the new milling head body 24 for use is ensured.

[0033] It should be noted that the above-mentioned electrical elements and electrical equipment all use external power supply, the circuit, electronic components and modules involved in the present application are all prior art, and can be realized by those skilled in the art without further description, although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

[0034] In addition, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A rotary milling head for a screw CNC machine tool, characterized in that: The system includes a machine tool (1), a connecting block (9), and a U-shaped limiting frame (23). The lower surface of the connecting block (9) is provided with an adjustment mechanism (28). The adjustment mechanism (28) includes an L-shaped plate (10), a servo motor (11), a rotating rod (12), a screw (13), a first pulley (14), a transmission belt (15), a second pulley (16), a connecting rod (17), a first gear (18), and a second gear (21). The front of the L-shaped plate (10) is fixedly connected to the back of the connecting block (9), and the front of the servo motor (11) is fixedly installed to the back of the L-shaped plate (10). One end of the rotating rod (12) is connected to the servo motor (11). The output shaft of 11) is fixedly connected, one end of the screw (13) is fixedly installed with the other end of the rotating rod (12), the inside of the pulley (14) is fixedly installed with the outer surface of the rotating rod (12), the inner ring of the transmission belt (15) is connected to the outer surface of the pulley (14), the outer surface of the pulley (16) is connected to the inner ring of the transmission belt (15), the outer surface of the connecting rod (17) is fixedly installed with the inside of the pulley (16), the inside of the gear (18) is fixedly installed with the outer surface of the connecting rod (17), and the outer surface of the gear (21) meshes with the outer surface of the gear (18).

2. The rotary milling head for a screw CNC machine tool according to claim 1, characterized in that: The U-shaped limiting frame (23) is provided with a replacement mechanism (29) on both sides. The replacement mechanism (29) includes a milling head body (24), a limiting bolt (25), an abutment pad (26), and a screw (27). The top of the milling head body (24) abuts against the top of the inside of the U-shaped limiting frame (23). The right side of the abutment pad (26) abuts against the left side of the milling head body (24). The outer surface of the screw (27) is threadedly connected to the inner wall of the U-shaped limiting frame (23), and one end of the screw (27) abuts against the left side of the abutment pad (26). The inside of the limiting bolt (25) is threadedly connected to the outer surface of the screw (27), and the right side of the limiting bolt (25) is fixedly abutted against the left side of the U-shaped limiting frame (23).

3. A rotary milling head for a screw CNC machine tool according to claim 1, characterized in that: The outer surface of the screw (13) is rotatably connected to the inner wall of the connecting block (9), and the outer surface of the connecting rod (17) is rotatably connected to the inner wall of the connecting block (9).

4. A rotary milling head for a screw CNC machine tool according to claim 1, characterized in that: The screw (13) has a threaded moving block (19) threadedly connected to its outer surface. The threaded moving block (19) has a connecting shaft (20) rotatably connected to its interior. The outer surface of the connecting shaft (20) is fixedly installed with the interior of the gear (21).

5. A rotary milling head for a screw CNC machine tool according to claim 4, characterized in that: A rotating block (22) is fixedly installed at the bottom of the connecting shaft (20), and the lower surface of the rotating block (22) is fixedly connected to the upper surface of the U-shaped limiting frame (23).

6. A rotary milling head for a screw CNC machine tool according to claim 1, characterized in that: Support frames (2) are fixedly installed around the bottom of the machine tool (1), connecting frames (3) are fixedly installed on both sides of the upper surface of the machine tool (1), connecting plates (4) are fixedly installed on the front of the connecting frames (3), and placement plates (5) are fixedly installed in the center of the upper surface of the machine tool (1).

7. A rotary milling head for a screw CNC machine tool according to claim 6, characterized in that: An electric telescopic rod (6) is provided inside the connecting plate (4). A movable receiving plate (7) is fixedly installed at one end of the electric telescopic rod (6). The outer surface of the movable receiving plate (7) is slidably connected to the inner wall of the connecting plate (4). A hydraulic cylinder (8) is provided on the upper surface of the movable receiving plate (7). One end of the output shaft of the hydraulic cylinder (8) is fixedly installed to the top of the connecting block (9).

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