Hoist type numerical control face milling machine

Abstract

The utility model relates to a hoist formula numerical control face milling machine, including frame, the frame front end is equipped with clamp, be equipped with the guide rail mounting seat on the frame, the guide rail mounting seat is higher than the clamp setting, the transverse guide rail is horizontally equipped on the guide rail mounting seat, the vertical column hanging plate is slidably equipped on the transverse guide rail, the guide rail mounting seat with vertical column hanging plate between being equipped with horizontal drive mechanism, the vertical column hanging plate lower end is equipped with at least one vertical column, the vertical column is vertically equipped with lifting guide rail, the lifting guide rail is slidably equipped with lifting slide, the vertical column hanging plate with lifting slide between being equipped with lifting drive mechanism, the lifting slide is longitudinally equipped with longitudinal guide rail, the longitudinal guide rail is slidably equipped with longitudinal slide, the lifting slide with longitudinal slide between being equipped with longitudinal drive mechanism, at least one end milling machine head is equipped on the longitudinal slide. Have the advantages such as reasonable structure design, scrap not easy to fall on the guide rail, long service life of guide rail, end milling efficiency.

Description

Technical fields:

[0001] This utility model relates to the field of CNC end milling technology, specifically to a hoisting CNC end milling machine. Background technology:

[0002] CNC end milling machines, or CNC end mills for short, are equipment specifically used in the door and window manufacturing industry for milling grooves on the ends of door and window profiles. The working principle and structural layout of CNC end milling machines are relatively mature. They mainly consist of a frame, with a profile fixture at the front and a multi-axis motion mechanism at the rear. The multi-axis motion mechanism houses the motor and saw blade. Typically, the saw blade can perform three translational movements to complete the milling groove process on the end of the profile. For a specific structural example, refer to a high-efficiency double-blade CNC end mill for door and window mullions (Authorization Announcement No.: CN208496313U).

[0003] While existing CNC end milling machines can perform end milling of door and window profiles, some deep-seated technical problems have been discovered in practical applications. For example, because the saw blade is located at the front end of the door and window profile, milling chips fly in all directions and eventually fall downwards. Since the saw blade needs to move laterally, chips inevitably accumulate on the transverse guide rails mounted on the base. When the transverse slider moves onto the chip-laden guide rails, it can easily scratch the rails and sometimes even push the chips to create secondary splashes, adversely affecting other components. Furthermore, single-blade milling is inefficient. Although multi-blade milling methods exist, their combinations are limited and cannot fully utilize the advantages of multi-blade collaborative operation. Therefore, it is necessary to optimize and improve the structure of CNC end milling machines to extend the service life of the guide rails and improve milling efficiency.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention:

[0005] The purpose of this utility model is to solve the problems existing in the prior art and provide a hoisting CNC end milling machine with advantages such as reasonable structural design, chips not easily falling on the guide rail, long service life of the guide rail, and high end milling efficiency.

[0006] This utility model achieves the above objectives by adopting the following technical solutions:

[0007] A suspended CNC end milling machine includes a frame, a fixture at the front end of the frame, a guide rail mounting seat on the frame (the guide rail mounting seat is higher than the fixture), a transverse guide rail on the guide rail mounting seat, a column mounting plate sliding on the transverse guide rail, a transverse drive mechanism between the guide rail mounting seat and the column mounting plate, at least one column at the lower end of the column mounting plate, a vertical lifting guide rail on the column, a lifting slide plate sliding on the lifting guide rail, a lifting drive mechanism between the column mounting plate and the lifting slide plate, a longitudinal guide rail on the lifting slide plate, a longitudinal slide plate sliding on the longitudinal guide rail, a longitudinal drive mechanism between the lifting slide plate and the longitudinal slide plate, and at least one end milling head on the longitudinal slide plate.

[0008] The lateral drive mechanism includes a motor base A mounted on the column mounting plate, a reducer A vertically mounted on the motor base A, a motor A at the input end of the reducer A, a gear at the output end, and a rack that meshes with the gear horizontally mounted on the guide rail mounting base.

[0009] The guide rail mounting base includes two crossbeams longitudinally spaced at the upper end of the frame. The upper end of the crossbeams is provided with a guide rail seat, and the guide rail seat is provided with a transverse guide rail. One of the crossbeams is provided with a rack seat, and the rack seat is provided with a rack.

[0010] The column mounting plate has two columns spaced horizontally apart. The inner side of the column is provided with the lifting guide rail, and the outer side of one of the columns is provided with a measuring mechanism.

[0011] The length-fixing mechanism includes a length-fixing guide rail longitudinally arranged on a column, a length-fixing slide block slidably arranged on the length-fixing guide rail, a length-fixing cylinder connected to the length-fixing slide block on the column, and a length-fixing plate at the front end of the length-fixing slide block.

[0012] The lifting drive mechanism includes a drive motor B vertically mounted on the upper end of the column mounting plate. The drive motor B is connected to a ball screw B via a coupling. The ball screw B is provided with a nut B, which is mounted on a nut seat B. The nut seat B is mounted on the lifting slide plate.

[0013] The longitudinal drive mechanism includes a drive motor C longitudinally mounted on the lifting slide plate. The drive motor C is connected to a ball screw C via a coupling. The ball screw C is provided with a nut C, which is mounted on a nut seat C. The nut seat C is mounted on the longitudinal slide plate.

[0014] The end milling head includes a spindle motor with a saw blade mounted on it. The spindle motor is directly fixed to the longitudinal slide plate via a spindle support or mounted on the longitudinal slide plate via a rotation adjustment mechanism. The rotation adjustment mechanism includes a rotating base mounted on the longitudinal slide plate, a turntable bearing mounted on the rotating base, a spindle mounting plate mounted on the turntable bearing, and a spindle motor mounted on the spindle mounting plate. A rotary drive cylinder is rotatably mounted on the longitudinal slide plate and connected to the spindle mounting plate via a fisheye connector. The rotating base has two positioning blocks with positioning screws and locking nuts. Correspondingly, the spindle mounting plate has a rotation limit block.

[0015] The two longitudinal slide plates are provided with two spindle supports at vertical intervals on one of the longitudinal slide plates, and an end milling head is provided on the spindle supports. The other longitudinal slide plate is provided with a spindle support and a rotation adjustment mechanism at vertical intervals, and an end milling head is provided on the spindle support and the rotation adjustment mechanism respectively.

[0016] The present invention, by adopting the above-described structure, can bring the following beneficial effects:

[0017] (1) By designing a guide rail mounting base with a height higher than the fixture, and using this as a reference for installing transverse, vertical, and longitudinal movements, the transverse guide rail is set higher than the end milling machining area, making it difficult for debris to fall onto the transverse guide rail. Since the lifting guide rail is set vertically and the longitudinal guide rail is set longitudinally and is suspended and can move laterally, debris is also unlikely to fall onto the lifting guide rail and the longitudinal guide rail. The overall structural layout is more reasonable, which can effectively prevent debris from falling onto the guide rail, reduce the risk of guide rail scratches, and extend the service life of the equipment. (2) By designing two longitudinal slide plates and reasonably arranging four end milling heads, three of the end milling heads adopt fixed angle end milling, and the remaining one adopts end milling angle adjustable. This layout can combine more end milling methods, meet more end milling needs, and thus greatly improve end milling efficiency. Attached image description:

[0018] Figure 1 This is a schematic diagram of the structure of the CNC end milling machine of this utility model;

[0019] Figure 2 This is a schematic diagram from another perspective of the CNC end milling machine of this utility model;

[0020] Figure 3 This is a partial structural diagram of the CNC end milling machine of this utility model;

[0021] Figure 4 This is a schematic diagram of the lifting drive mechanism and the longitudinal drive mechanism of this utility model;

[0022] Figure 5This is a schematic diagram of the installation structure of the longitudinal sliding plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the spindle support and end milling head of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the rotary adjustment mechanism and the end milling head of this utility model;

[0025] Figure 8 This is a side view of the rotary adjustment mechanism and the end milling head of this utility model;

[0026] In the diagram, 1. Frame, 2. Fixture, 3. Guide rail mounting base, 301. Crossbeam, 302. Guide rail base, 303. Rack base, 4. Transverse guide rail, 5. Column mounting plate, 6. Transverse drive mechanism, 601. Motor base A, 602. Reducer A, 603. Motor A, 604. Gear, 605. Rack, 7. Column, 8. Lifting guide rail, 9. Lifting slide plate, 10. Lifting drive mechanism, 1001. Drive motor B, 1002. Ball screw B, 1003. Nut B, 1004. Nut base B, 11. Longitudinal guide rail, 12. Longitudinal slide plate, 13. Longitudinal drive mechanism, 1301. Drive motor C, 1302. 1303 Ball screw C, 1404 Nut C, 1505 Nut seat C, 1601 End mill head, 1702 Spindle motor, 1803 Saw blade, 1904 Length fixing mechanism, 1005 Length fixing guide rail, 1006 Length fixing slide, 1707 Turntable bearing, 1808 Spindle mounting plate, 1909 Rotary drive cylinder, 10000 Scale plate, 10000 Scale plate, 110000 Scale plate, 12000 Scale plate, 13000 Scale plate, 14000 Scale plate, 15000 Scale plate, 16000 Scale plate, 17000 Scale plate, 18000 Scale plate, 19000 Scale plate, 10000 Scale plate, 19000 Scale plate, 10000 Scale plate, 10000 Scale plate, 11000 Scale plate, 12000 Scale plate, 13000 Scale plate, 13000 Scale plate, 1900 Scale plate, 1000 Scale plate, 1000 Scale plate, 11000 Scale plate, 12000 Scale plate, 13000 Scale plate, 13000 Scale plate, 13000 Scale plate, 1400 Scale plate, 1500 Scale plate, 1600 Scale plate, 1700 Scale plate, 1700 Scale plate, 1700 Scale plate, 1800 Scale plate, 19 ... Detailed implementation method:

[0027] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0029] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0030] Furthermore, the terms “horizontal,” “vertical,” “A,” “B,” “C,” etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the location of the indicated technical feature.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "provided with," "set up," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] like Figure 1-8 As shown, a suspended CNC end milling machine includes a frame 1, a fixture 2 at the front end of the frame 1, a guide rail mounting seat 3 on the frame 1, the guide rail mounting seat 3 being higher than the fixture 2, a transverse guide rail 4 on the guide rail mounting seat 3, a column mounting plate 5 slidably mounted on the transverse guide rail 4, a transverse drive mechanism 6 between the guide rail mounting seat 3 and the column mounting plate 5, at least one column 7 at the lower end of the column mounting plate 5, a lifting guide rail 8 vertically mounted on the column 7, a lifting slide plate 9 slidably mounted on the lifting guide rail 8, a lifting drive mechanism 10 between the column mounting plate 5 and the lifting slide plate 9, a longitudinal guide rail 11 longitudinally mounted on the lifting slide plate 9, a longitudinal slide plate 12 slidably mounted on the longitudinal guide rail 11, a longitudinal drive mechanism 13 between the lifting slide plate 9 and the longitudinal slide plate 12, and at least one end milling head 14 mounted on the longitudinal slide plate 12. By designing the guide rail mounting base 3, with its height higher than the fixture 2, and using this as a reference for horizontal, vertical, and longitudinal movement, the horizontal guide rail 4 is positioned higher than the end milling machining area, making it difficult for debris to fall onto the horizontal guide rail 4. Since the lifting guide rail 8 is vertically positioned and the longitudinal guide rail 11 is longitudinally positioned and suspended, allowing for horizontal movement, debris also makes it difficult for debris to fall onto the lifting guide rail 8 and the longitudinal guide rail 11. The overall structural layout is more reasonable, effectively preventing debris from falling onto the guide rails, reducing the risk of guide rail scratches, and extending the service life of the equipment.

[0033] The lateral drive mechanism 6 includes a motor base A601 mounted on the column mounting plate 5. A reducer A602 is vertically mounted on the motor base A601. A motor A603 is mounted at the input end of the reducer A602, and a gear 604 is mounted at its output end. A rack 605, meshing with the gear 604, is horizontally mounted on the guide rail mounting base 3. Servo rack and pinion transmission is used to achieve rapid and precise lateral movement.

[0034] The guide rail mounting base 3 includes two longitudinally spaced crossbeams 301 positioned at the upper end of the frame 1. A guide rail seat 302 is located at the upper end of each crossbeam 301, and a transverse guide rail 4 is mounted on the guide rail seat 302. A rack seat 303 is mounted on one of the crossbeams 301, and a rack 304 is mounted on the rack seat 303. The specific structure of the guide rail mounting base 3 is given, particularly the use of two longitudinally spaced crossbeams 301 positioned at the upper end of the frame, which satisfies both the transverse connection requirements of the frame and the requirement for mounting the transverse guide rail 4.

[0035] Two columns 7 are horizontally spaced on the column mounting plate 5. The lower ends of the two columns 7 are connected to column connecting shafts 18, which are threaded onto the columns 7. The inner side of each column 7 is provided with a lifting guide rail 8, and one of the columns 7 has a length-fixing mechanism 15 on its outer side. This double-column 7 structure not only achieves a symmetrical design but also allows for the placement of more end-milling heads 14, enabling multiple end-milling heads 14 to work together for end-milling, significantly improving end-milling efficiency.

[0036] The length-fixing mechanism 15 includes a length-fixing guide rail 1501 longitudinally mounted on the column 7, a length-fixing slide block 1502 slidably mounted on the length-fixing guide rail 1501, a length-fixing cylinder 1503 connected to the length-fixing slide block 1502 mounted on the column 7, and a length-fixing plate 1503 at the front end of the length-fixing slide block 1502. It works in conjunction with the clamp 2 to position the end of the profile.

[0037] The lifting drive mechanism 10 includes a drive motor B1001 vertically mounted on the upper end of the column mounting plate 5. The drive motor B1001 is connected to a ball screw B1002 via a coupling. The ball screw B1002 is equipped with a nut B1003, which is mounted on a nut seat B1004. The nut seat B1004 is mounted on the lifting slide plate 9. The vertical height adjustment is achieved using a servo ball screw drive, which can meet the requirements of end milling at different heights.

[0038] The longitudinal drive mechanism 13 includes a drive motor C1301 longitudinally mounted on the lifting slide plate 8. The drive motor C1301 is connected to a ball screw C1302 via a coupling. The ball screw C1302 is equipped with a nut C1303, which is mounted on a nut seat C1304. The nut seat C1304 is mounted on the longitudinal slide plate 12. The ball screw drive is used to achieve the end milling depth requirements, thereby satisfying the end milling requirements for different groove depths.

[0039] The end milling head 14 includes a spindle motor 1401, on which a saw blade 1402 is mounted. The spindle motor 1401 is directly fixed to the longitudinal slide plate 12 via a spindle support 16 or mounted on the longitudinal slide plate 12 via a rotation adjustment mechanism 17. The rotation adjustment mechanism 17 includes a rotating base 1701 mounted on the longitudinal slide plate 12, on which a turntable bearing 1702 is mounted, and on which a spindle mounting plate 17 is mounted. 03. The spindle mounting plate 1703 is equipped with a spindle motor 1401. A rotary drive cylinder 1704 is rotatably mounted on the longitudinal slide plate 12. The rotary drive cylinder 1704 is connected to the spindle mounting plate 1703 through a fisheye connector 1705. Two positioning blocks 1706 are respectively provided on the rotating base 1701. The positioning blocks 1706 are equipped with positioning screws 1707 and locking nuts 1708. Correspondingly, the spindle mounting plate 1703 is equipped with a rotation limit block 1709. The structure of the end milling head 14 and two installation methods of the end milling head 14 are given. This meets diverse end milling needs.

[0040] The two longitudinal slide plates 12 each have two vertically spaced spindle supports 16, with end milling heads 14 mounted on each spindle support 16. The other longitudinal slide plate 12 has a vertically spaced spindle support 16 and a rotation adjustment mechanism 17, with end milling heads 14 mounted on both the spindle support 16 and the rotation adjustment mechanism 17. This allows for the installation of four end milling heads 14. Depending on the end milling requirements of the profile, at least one end milling head 14 can be selected for processing, or all four end milling heads 14 can be arranged from top to bottom to perform end milling simultaneously.

[0041] The above specific embodiments should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, any alternative improvements or modifications made to the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0042] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A hoisting type CNC end milling machine, characterized in that, The machine includes a frame, a clamp at the front end of the frame, a guide rail mounting seat on the frame, the guide rail mounting seat being higher than the clamp, a transverse guide rail on the guide rail mounting seat, a column mounting plate sliding on the transverse guide rail, a transverse drive mechanism between the guide rail mounting seat and the column mounting plate, at least one column at the lower end of the column mounting plate, a vertical lifting guide rail on the column, a lifting slide plate sliding on the lifting guide rail, a lifting drive mechanism between the column mounting plate and the lifting slide plate, a longitudinal guide rail on the lifting slide plate, a longitudinal slide plate sliding on the longitudinal guide rail, a longitudinal drive mechanism between the lifting slide plate and the longitudinal slide plate, and at least one end milling head on the longitudinal slide plate.

2. The hoisting CNC end milling machine according to claim 1, characterized in that, The lateral drive mechanism includes a motor base A mounted on the column mounting plate, a reducer A vertically mounted on the motor base A, a motor A at the input end of the reducer A, a gear at the output end, and a rack that meshes with the gear horizontally mounted on the guide rail mounting base.

3. The hoisting CNC end milling machine according to claim 2, characterized in that, The guide rail mounting base includes two crossbeams longitudinally spaced at the upper end of the frame. The upper end of the crossbeams is provided with a guide rail seat, and the guide rail seat is provided with a transverse guide rail. One of the crossbeams is provided with a rack seat, and the rack seat is provided with a rack.

4. The hoisting CNC end milling machine according to claim 3, characterized in that, The column mounting plate has two columns spaced horizontally apart. The inner side of the column is provided with the lifting guide rail, and the outer side of one of the columns is provided with a measuring mechanism.

5. The hoisting CNC end milling machine according to claim 4, characterized in that, The length-fixing mechanism includes a length-fixing guide rail longitudinally arranged on a column, a length-fixing slide block slidably arranged on the length-fixing guide rail, a length-fixing cylinder connected to the length-fixing slide block on the column, and a length-fixing plate at the front end of the length-fixing slide block.

6. The hoisting CNC end milling machine according to claim 5, characterized in that, The lifting drive mechanism includes a drive motor B vertically mounted on the upper end of the column mounting plate. The drive motor B is connected to a ball screw B via a coupling. The ball screw B is provided with a nut B, which is mounted on a nut seat B. The nut seat B is mounted on the lifting slide plate.

7. The hoisting CNC end milling machine according to claim 6, characterized in that, The longitudinal drive mechanism includes a drive motor C longitudinally mounted on the lifting slide plate. The drive motor C is connected to a ball screw C via a coupling. The ball screw C is provided with a nut C, which is mounted on a nut seat C. The nut seat C is mounted on the longitudinal slide plate.

8. The hoisting CNC end milling machine according to claim 1 or 7, characterized in that, The end milling head includes a spindle motor with a saw blade mounted on it. The spindle motor is directly fixed to the longitudinal slide plate via a spindle support or mounted on the longitudinal slide plate via a rotation adjustment mechanism. The rotation adjustment mechanism includes a rotating base mounted on the longitudinal slide plate, a turntable bearing mounted on the rotating base, a spindle mounting plate mounted on the turntable bearing, and a spindle motor mounted on the spindle mounting plate. A rotary drive cylinder is rotatably mounted on the longitudinal slide plate and connected to the spindle mounting plate via a fisheye connector. The rotating base has two positioning blocks with positioning screws and locking nuts. Correspondingly, the spindle mounting plate has a rotation limit block.

9. The hoisting CNC end milling machine according to claim 8, characterized in that, The two longitudinal slide plates are provided with two spindle supports at vertical intervals on one of the longitudinal slide plates, and an end milling head is provided on the spindle supports. The other longitudinal slide plate is provided with a spindle support and a rotation adjustment mechanism at vertical intervals, and an end milling head is provided on the spindle support and the rotation adjustment mechanism respectively.

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