A high-efficiency cutting device of a ball-end milling cutter with quick tool changing

Abstract

The utility model discloses a kind of ball end mill high-efficiency cutting devices of quick tool changing, belong to milling cutter technical field, including motor base and main shaft motor, the main shaft motor is installed on motor base, the main shaft motor output end is connected with the shaft, the motor base rear side is fixed with tool changer, the tool changer includes substrate, lower sliding slot, lower sliding block, lower screw rod, connecting rod and moving plate, the substrate is fixed in motor base side surface, the lower sliding slot is opened in substrate side surface, the lower sliding block slides in lower sliding slot, the lower screw rod rotates in lower sliding slot and screw thread penetrates lower sliding block, the connecting rod connects lower sliding block and moving plate, the moving plate center equidistant rotation has ball end mill, the ball end mill top end is equipped with milling cutter chuck, the shaft bottom end is fixed with electromagnet disc, by above-mentioned mode, quick tool changing is realized, without taking down main shaft motor, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically to a high-efficiency cutting device for ball end mills with quick tool change capability. Background Technology

[0002] Milling cutters are rotary cutting tools used for cutting and machining. They remove excess material from the workpiece through intermittent cutting with their teeth. They are mainly used for machining planes, steps, grooves, shaped surfaces, and cutting off workpieces. Among them, ball end mills are a type of milling cutter, a special tool mounted on a milling machine. Its cutting edge is shaped like a ball and is mainly used for milling complex three-dimensional curved surfaces, circular arc grooves, and contour machining. This tool reduces cutting vibration and improves surface finish through its spherical tip design, and is widely used in mold manufacturing, aerospace industry and other fields.

[0003] In actual milling operations, different ball end mills are used for different machining needs, and the end mills also need to be replaced after a long period of use. Currently, when changing ball end mills, for safety reasons, the spindle motor with the end mill is usually removed, and the end mill is then screwed off the spindle motor shaft for replacement and installation. This is not convenient for quick tool changes.

[0004] Based on this, this utility model designs a high-efficiency cutting device for ball end mills with quick tool changing to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high-efficiency cutting device for ball end mills with quick tool change capability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency ball end mill cutting device with quick tool change includes a motor base and a spindle motor. The spindle motor is mounted on the motor base, and a rotating shaft is connected to the output end of the spindle motor. A tool changer is fixed to the rear side of the motor base. The tool changer includes a base plate, a sliding groove, a sliding block, a lower screw, a connecting rod, and a moving plate. The base plate is fixed to the side of the motor base. The sliding groove is formed on the side of the base plate. The sliding block slides in the sliding groove. The lower screw rotates in the sliding groove and its thread passes through the sliding block. The connecting rod connects the sliding block and the moving plate. Ball end mills rotate at equal intervals around the center of the moving plate. A cutter chuck is installed at the top of the ball end mill. An electromagnet is fixed to the bottom end of the rotating shaft.

[0007] Furthermore, the horizontal plane at the bottom of the rotating shaft is lower than the horizontal plane at the bottom of the motor base.

[0008] Furthermore, the substrate is a double L-shaped plate and is threaded to the rear side of the motor base, and the horizontal plane at the bottom of the substrate is lower than the horizontal plane at the bottom of the motor base.

[0009] Furthermore, the movable plate is an L-shaped plate, and the horizontal plane at the top of the horizontal part is lower than the horizontal plane at the bottom of the rotating shaft. The length of the movable plate is equal to the length of the lower slider and is half the length of the lower groove. The horizontal plane at the top of the milling cutter chuck and the horizontal plane at the bottom of the electromagnet disk are the same horizontal plane.

[0010] Furthermore, the two ends of the connecting rod are respectively threaded to the side of the lower slider and the side of the moving plate.

[0011] Furthermore, a base plate is fixed to both the bottom and top of the front side of the motor base, and the top of the main spindle motor is threaded onto the base plate. A through hole is opened in the center of the lower part of the base plate, and the rotating shaft passes through the through hole.

[0012] Furthermore, the sliding groove is provided through both ends of the substrate and a lower plug is slidably provided at the end. The lower plug is threadedly fixed to the end of the sliding groove. The side of the lower slider is flush with the opening surface of the sliding groove. The lower screw rotates through the lower plug.

[0013] Furthermore, the movable plate has connecting grooves at equal intervals at its center, and connecting blocks are threadedly fixed in the connecting grooves. A bearing is installed at the center of the connecting block, and the ball end mill rotates on the movable plate through the bearing.

[0014] Furthermore, an adjusting component is installed on the rear side of the motor base. The adjusting component includes an upper sliding groove, an upper sliding block, and an upper screw. The upper sliding groove is formed on the rear side of the motor base. The upper sliding block slides in the upper sliding groove. The upper screw rotates in the upper sliding groove and is threaded through the upper sliding block. The base plate is threadedly fixed on the upper sliding block.

[0015] Furthermore, the upper sliding groove is provided through the bottom end of the motor base and an upper blocking block slides at the end. The lower upper blocking block is threadedly fixed to the bottom end of the motor base, and the upper screw rotates through the upper blocking block.

[0016] Beneficial effects 1. By setting up a tool changer, when it is necessary to change the end mill, the electromagnetic disc is energized and its magnetic properties are lost, which separates the ball end mill that needs to be replaced from the spindle motor. The threaded engagement of the lower screw and the lower slide, and the sliding engagement of the lower slide and the lower groove, allow another set of ball end mills to be switched to the area below the spindle motor, achieving quick tool change without removing the spindle motor, which is convenient for use. 2. The base plate and through holes facilitate the installation and removal of the spindle motor; the through-sliding groove and lower block facilitate the installation and removal of the lower slide block and lower screw; the connecting groove and connecting block facilitate the connection between the ball end mill and the moving plate; the upper slide block, upper screw, and upper groove allow the position of the top of the ball end mill to be adjusted according to its height, facilitating its connection with the spindle motor; the through-sliding upper groove and upper block facilitate the installation and removal of the upper slide block and upper screw. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural view of a high-efficiency cutting device for ball end mills with quick tool change according to the present invention; Figure 2 This is a perspective view of the motor base structure of a high-efficiency cutting device for ball end mills with quick tool change according to this utility model; Figure 3 This is a three-dimensional view of the tool changing component structure of a high-efficiency cutting device for ball end mills with quick tool changing according to this utility model; Figure 4 This is a perspective view of the moving plate structure of a high-efficiency cutting device for ball end mills with quick tool changing according to this utility model.

[0019] The labels in the diagram represent: 1. Motor base; 2. Spindle motor; 3. Rotating shaft; 4. Base plate; 5. Lower slide groove; 6. Lower slide block; 7. Lower screw; 8. Connecting rod; 9. Moving plate; 10. Ball end mill; 11. Milling cutter chuck; 12. Electromagnetic disc; 13. Base plate; 14. Through hole; 15. Lower plug; 16. Connecting groove; 17. Connecting block; 18. Bearing; 19. Upper slide groove; 20. Upper slide block; 21. Upper screw; 22. Upper plug. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] In some embodiments, please refer to the accompanying drawings. Figure 1 and Figure 3 The device includes a motor base 1 and a spindle motor 2. The spindle motor 2 is mounted on the motor base 1. The output end of the spindle motor 2 is connected to a rotating shaft 3. A tool changer is fixed to the rear side of the motor base 1. The tool changer includes a base plate 4, a sliding groove 5, a sliding block 6, a lower screw 7, a connecting rod 8, and a moving plate 9. The base plate 4 is fixed to the side of the motor base 1. The sliding groove 5 is opened on the side of the base plate 4. The sliding block 6 slides in the sliding groove 5. The lower screw 7 rotates in the sliding groove 5 and its thread passes through the sliding block 6. The connecting rod 8 connects the sliding block 6 and the moving plate 9. Ball end mills 10 rotate at equal intervals at the center of the moving plate 9. A milling cutter chuck 11 is installed at the top of the ball end mill 10. An electromagnet disk 12 is fixed to the bottom of the rotating shaft 3. In this embodiment of the utility model, when it is necessary to replace the milling cutter, the operation of the spindle motor 2 is stopped, the power supply of the electromagnet disk 12 is disconnected, so that the rotating shaft 3 and the ball end mill 10 are separated. At this time, the lower screw 7 is rotated, and the lower screw 7 and the lower slide block 6 are threaded together. Under the sliding cooperation between the lower slide block 6 and the lower slide groove 5, the position of the lower slide block 6 is moved, thereby adjusting the position of the moving plate 9 so that another set of ball end mills 10 is below the rotating shaft 3. The power supply of the electromagnet disk 12 is connected again, so that it has magnetism and is fixed to the milling cutter chuck 11, so as to realize the quick replacement of the ball end mill 10. In this embodiment of the utility model, by setting up a tool changing device, when it is necessary to change the milling cutter, the characteristic of the electromagnetic disk 12 losing its magnetic properties when energized is utilized to separate the ball end mill 10 to be replaced from the spindle motor 2. By utilizing the threaded engagement of the lower screw 7 and the lower slide block 6, and the sliding engagement of the lower slide block 6 and the lower groove 5, another set of ball end mills 10 is switched to below the spindle motor 2, realizing quick tool changing without removing the spindle motor 2, which is convenient for use. In one embodiment of this utility model, the horizontal plane at the bottom of the rotating shaft 3 is lower than the horizontal plane at the bottom of the motor base 1. The base plate 4 is a double L-shaped plate and is threadedly fixed to the rear side of the motor base 1. The horizontal plane at the bottom of the base plate 4 is lower than the horizontal plane at the bottom of the motor base 1. The moving plate 9 is an L-shaped plate and the horizontal plane at the top of its horizontal part is lower than the horizontal plane at the bottom of the rotating shaft 3. The length of the moving plate 9 is equal to the length of the lower slider 6 and is half the length of the lower groove 5. The horizontal plane at the top of the milling cutter chuck 11 and the horizontal plane at the bottom of the electromagnet disk 12 are the same horizontal plane, ensuring that when the ball end mill 10 is moved and switched, the top of the milling cutter chuck 11 can contact the bottom of the electromagnet disk 12. The two ends of the connecting rod 8 are respectively threadedly fixed to the side of the lower slider 6 and the side of the moving plate 9, which facilitates the loading and unloading of the moving plate 9. In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a base plate 13 is fixed to both the bottom and top of the front side of the motor base 1. The top of the main spindle motor 2 is threaded onto the base plate 13. A through hole 14 is opened in the center of the lower base plate 13. The rotating shaft 3 passes through the through hole 14. The sliding groove 5 is set through both ends of the base plate 4 and a lower block 15 slides at the end. The lower block 15 is threaded onto the end of the sliding groove 5. The side of the sliding block 6 is flush with the opening surface of the sliding groove 5. The lower screw 7 rotates through the lower block 15. A connecting groove 16 is opened at equal intervals in the center of the moving plate 9. A connecting block 17 is threaded into the connecting groove 16. A bearing 18 is installed in the center of the connecting block 17. The end mill 10 rotates on the moving plate 9 via the bearing 18. An adjusting component is installed on the rear side of the motor base 1. The adjusting component includes an upper sliding groove 19, an upper slider 20, and an upper screw 21. The upper sliding groove 19 is opened on the rear side of the motor base 1. The upper sliding groove 19 passes through the bottom end of the motor base 1 and has an upper block 22 sliding at its end. The lower upper block 22 is threadedly fixed to the bottom end of the motor base 1. The upper slider 20 slides in the upper sliding groove 19. The upper screw 21 rotates in the upper sliding groove 19 and is threaded through the upper slider 20. The upper screw 21 rotates through the upper block 22. The base plate 4 is threadedly fixed to the upper slider 20. In this embodiment of the invention, during use, the spindle motor 2 is fixed between the base plates 13 on the motor base 1, and the rotating shaft 3 passes through the through hole 14. Then, ball end mills 10 of different specifications are installed on the moving plate 9 in an increasing or decreasing order through the cooperation of the connecting block 17 and the connecting groove 16. Next, the base plate 4 is fixed on the upper slider 20, and the moving plate 9 and the lower slider 6 are connected by the connecting rod 8 to achieve device installation. Utilizing the threaded cooperation between the lower screw 7 and the lower slider 6, and the sliding cooperation between the lower slider 6 and the lower groove 5, the position of the lower slider 6 is moved. Adjusting the position of the movable plate 9 so that a set of ball end mills 10 are below the rotating shaft 3 allows the upper screw 21 to be rotated according to the length of the ball end mills 10. This, combined with the threaded engagement between the upper screw and the upper slider 20, and the sliding engagement between the upper slider 20 and the upper groove 19, adjusts the height of the base plate 4, thereby adjusting the height of the movable plate 9. This positions the ball end mills 10 to be connected directly below the rotating shaft 3, ensuring that the top of the milling cutter chuck 11 contacts the bottom of the electromagnet disk 12. Power is then supplied to the electromagnet disk 12, giving it magnetism and fixing it to the milling cutter chuck 11. When the ball end mill 10 needs to be replaced, stop the spindle motor 2, disconnect the power supply to the electromagnet disk 12, and separate the rotating shaft 3 from the ball end mill 10. Rotate the upper screw 21, utilizing its threaded engagement with the upper slider 20, and the sliding engagement between the upper slider 20 and the upper groove 19, to adjust the height of the base plate 4, causing the moving plate 9 to move the ball end mill 10 downwards. At this time, rotate the lower screw 7, utilizing its threaded engagement with the lower slider 6, and the sliding engagement between the lower slider 6 and the lower groove 5, to move the position of the lower slider 6, thereby performing the displacement. Adjusting the position of the moving plate 9 so that the other set of ball end mills 10 are below the rotating shaft 3, and rotating the upper screw 21 again, using its threaded engagement with the upper slider 20, and the sliding engagement between the upper slider 20 and the upper groove 19, adjusts the height of the base plate 4, thereby adjusting the height of the moving plate 9, so that the ball end mill 10 to be connected is directly below the rotating shaft 3, so that the top of the end mill chuck 11 contacts the bottom of the electromagnet disk 12, and the power supply of the electromagnet disk 12 is connected again, so that it has magnetism and is fixed to the end mill chuck 11, realizing the quick replacement of the ball end mill 10; In this embodiment of the utility model, the base plate 13 and through hole 14 facilitate the installation and removal of the spindle motor 2; the through-sliding groove 5 and lower block 15 facilitate the installation and removal of the lower slider 6 and lower screw 7; the connecting groove 16 and connecting block 17 facilitate the connection between the ball end mill 10 and the moving plate 9; the upper slider 20, upper screw 21 and upper groove 19 allow the position of the top of the ball end mill 10 to be adjusted according to its height, facilitating its connection with the spindle motor 2; the through-sliding upper groove 19 and upper block 22 facilitate the installation and removal of the upper slider 20 and upper screw 21. The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-efficiency cutting device for ball end mills with quick tool change capability, comprising a motor mount (1) and a spindle motor (2), characterized in that: The main spindle motor (2) is mounted on the motor base (1). The output end of the main spindle motor (2) is connected to the rotating shaft (3). A tool changer is fixed on the rear side of the motor base (1). The tool changer includes a base plate (4), a sliding groove (5), a sliding block (6), a lower screw (7), a connecting rod (8), and a moving plate (9). The base plate (4) is fixed on the side of the motor base (1). The sliding groove (5) is opened on the side of the base plate (4). The sliding block (6) slides in the sliding groove (5). The lower screw (7) rotates in the sliding groove (5) and its thread passes through the sliding block (6). The connecting rod (8) connects the sliding block (6) and the moving plate (9). Ball end mills (10) rotate at equal intervals in the center of the moving plate (9). A milling cutter chuck (11) is installed at the top of the ball end mill (10). An electromagnet disc (12) is fixed at the bottom of the rotating shaft (3).

2. The high-efficiency cutting device for ball end mills with quick tool change according to claim 1, characterized in that, The bottom of the rotating shaft (3) is at a horizontal plane that is lower than the bottom of the motor base (1).

3. The high-efficiency cutting device for ball end mills with quick tool change according to claim 1, characterized in that, The substrate (4) is a double L-shaped plate and is threaded to the rear side of the motor base (1). The bottom of the substrate (4) is at a horizontal plane lower than the bottom of the motor base (1).

4. The high-efficiency cutting device for ball end mills with quick tool change according to claim 1, characterized in that, The moving plate (9) is an L-shaped plate and the horizontal plane at the top of the horizontal part is lower than the horizontal plane at the bottom of the rotating shaft (3). The length of the moving plate (9) is equal to the length of the lower slider (6) and the length is half the length of the lower groove (5). The horizontal plane at the top of the milling cutter chuck (11) and the horizontal plane at the bottom of the electromagnet disk (12) are the same horizontal plane.

5. The high-efficiency cutting device for ball end mills with quick tool change according to claim 1, characterized in that, The two ends of the connecting rod (8) are respectively threaded to the side of the lower slider (6) and the side of the moving plate (9).

6. The high-efficiency cutting device for ball end mills with quick tool change according to claim 2, characterized in that, The motor base (1) has a base plate (13) fixed at both the bottom and top sides. The top of the main spindle motor (2) is threaded onto the base plate (13). A through hole (14) is opened in the center of the lower part of the base plate (13), and the rotating shaft (3) passes through the through hole (14).

7. The high-efficiency cutting device for ball end mills with quick tool change according to claim 3, characterized in that, The sliding groove (5) is provided through both ends of the substrate (4) and a lower block (15) slides at the end. The lower block (15) is threadedly fixed to the end of the sliding groove (5). The side of the sliding block (6) is flush with the opening surface of the sliding groove (5). The lower screw (7) rotates through the lower block (15).

8. The high-efficiency cutting device for ball end mills with quick tool change according to claim 4, characterized in that, The moving plate (9) has connecting grooves (16) at equal intervals in the center. A connecting block (17) is fixed in the connecting groove (16) by a thread. A bearing (18) is installed in the center of the connecting block (17). The ball end mill (10) rotates on the moving plate (9) through the bearing (18).

9. The high-efficiency cutting device for ball end mills with quick tool change according to claim 1, characterized in that, An adjusting component is installed on the rear side of the motor base (1). The adjusting component includes an upper sliding groove (19), an upper sliding block (20), and an upper screw (21). The upper sliding groove (19) is opened on the rear side of the motor base (1). The upper sliding block (20) slides in the upper sliding groove (19). The upper screw (21) rotates in the upper sliding groove (19) and is threaded through the upper sliding block (20). The base plate (4) is threadedly fixed on the upper sliding block (20).

10. The high-efficiency cutting device for ball end mills with quick tool change according to claim 9, characterized in that, The upper sliding groove (19) is provided through the bottom end of the motor base (1) and the upper block (22) slides at the end. The lower upper block (22) is threadedly fixed to the bottom end of the motor base (1), and the upper screw (21) rotates through the upper block (22).

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