Double-beam bridge type five-axis machining center

Abstract

The utility model discloses a double-beam bridge type five-axis machining center, which relates to the field of five-axis machining centers and comprises two cross beams, reinforcing ribs are welded at the tops of the two cross beams, a vertical beam is slidably mounted on a front end plate of the reinforcing ribs at the front end, and a sliding frame is vertically slidably mounted on a front end plate of the vertical beam. A sleeve is installed at the front end of the sliding frame, an X-axis moving mechanism is installed on the two cross beams, a Y-axis moving mechanism is installed on the vertical beam, and a Y-axis rotating mechanism which penetrates into the sleeve and extends to the position below the sleeve is installed above the sleeve. And a Z-axis rotating mechanism which extends into the sleeve and is matched with the Y-axis rotating mechanism is mounted at the rear end of the sleeve. According to the utility model, the Y-axis rotating mechanism and the Z-axis rotating mechanism are arranged, so that the two axis rotating mechanisms do not interfere with each other in the rotating process, and a complicated conductive slip ring loop does not need to be designed, thereby reducing the manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of five-axis machining centers, specifically a double-beam bridge type five-axis machining center. Background Technology

[0002] A five-axis machining center includes X, Y, and Z linear axes and rotation around the X and Y axes (or Z axes), with each axis working together to achieve three-dimensional surface machining.

[0003] In the prior art, rotating mechanisms that rotate around the X-axis, Y-axis (or Z-axis) are prone to interference between the two rotating mechanisms during the machining process. Therefore, in the prior art, drive mechanisms are designed on the two rotating mechanisms around the axes respectively, and energized by conductive slip rings. This method results in higher costs. Utility Model Content

[0004] The purpose of this utility model is to provide a double-beam bridge-type five-axis machining center in order to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-beam bridge-type five-axis machining center, comprising two crossbeams, with reinforcing ribs welded to the top of the two crossbeams, a vertical beam slidably mounted on the front end plate of the reinforcing ribs at the front end, a sliding frame slidably mounted on the front end plate of the vertical beam, a sleeve mounted at the front end of the sliding frame, an X-axis moving mechanism mounted on the two crossbeams, a Y-axis moving mechanism mounted on the vertical beam, a Y-axis rotating mechanism extending through the sleeve and extending below the sleeve, and a Z-axis rotating mechanism extending into the sleeve and interacting with the Y-axis rotating mechanism, mounted at the rear end of the sleeve.

[0006] As a further embodiment of this utility model: the X-axis moving mechanism includes a first reversible motor installed at one end of the crossbeam at the back end; a first tensioning wheel is rotatably installed at both ends of the inner side between the two crossbeams; the two first tensioning wheels are connected by a first transmission belt; the output shaft of the first reversible motor is coaxially and fixedly connected to one end of one of the first tensioning wheels; a guide block extending through to the outside of the reinforcing rib is fixedly connected to the lower half of the outer wall of the first transmission belt; a horizontal guide groove for the guide block to slide is opened inside the reinforcing rib at the front end; an upper guide rail is fixedly installed on the top of the reinforcing rib; a moving block is slidably connected to the inner wall of the upper guide rail; the moving block and the guide block are fixedly connected to the back end of the vertical beam.

[0007] As a further embodiment of this utility model: the Y-axis moving mechanism includes a second forward and reverse motor fixedly installed on the outside of the side plate of the vertical beam and two second tensioning wheels rotatably installed on the inside of the vertical beam. The two second tensioning wheels are connected by a second transmission belt. A sliding frame extending through the outside of the front half of the second transmission belt is fixedly installed on its outer wall. A vertical guide groove for the sliding frame to slide up and down is provided on the front end plate of the vertical beam. Front guide rails are fixedly installed on both sides of the front end plate of the vertical beam. A sliding groove that slides with the front guide rail is provided on the side of the sliding frame near the front end plate of the vertical beam. The front end of the sliding frame is fixedly connected to the top of the sleeve.

[0008] As a further embodiment of this utility model: the rotation mechanism around the Y-axis includes a fixed bracket fixedly installed at the front end of the sliding frame. The fixed bracket is located above the sleeve. A No. 3 forward and reverse motor is fixedly installed on the top of the fixed bracket. The output shaft of the No. 3 forward and reverse motor passes through to the bottom of the fixed bracket. The output end of the No. 3 forward and reverse motor is fixedly connected to a drive shaft that passes through the inside of the sleeve. The drive shaft is rotatably connected to the sleeve. A movable disc is coaxially fixedly connected to the bottom end of the drive shaft.

[0009] As a further embodiment of this utility model: the rotating mechanism around the Y-axis also includes a connecting plate rotatably mounted on the inner wall of the sleeve, the connecting plate being connected to the movable plate, a fixing lug being fixedly mounted at the bottom end of the connecting plate, and a rotating cutter being rotatably mounted on the inner side of the fixing lug.

[0010] As a further embodiment of this utility model: the Z-axis rotation mechanism includes an electric push cylinder fixedly installed on the top of the fixed bracket, a connecting plate fixedly installed on the output end of the electric push cylinder, and a connecting block fixedly installed on the top of the connecting plate;

[0011] The Z-axis rotation mechanism further includes a rotating disk sleeved on the inner wall of the sleeve. The rotating disk is located above the movable disk. A circular hole is opened at the center of the rotating disk. The diameter of the circular hole is larger than the diameter of the drive shaft. An annular groove is opened at the bottom end of the rotating disk and is movably connected to the connecting block. A lifting shaft is fixedly installed at the bottom end of the rotating disk, penetrating the movable disk and extending to the bottom end. The lifting shaft is slidably connected to the movable disk. An L-shaped frame is fixedly installed at the bottom end of the lifting shaft. A rack is fixedly installed at the bottom end of the crossbar of the L-shaped frame. A gear meshes with the outer side of the rack. The gear is coaxially fixedly connected to the rotating shaft on the fixed ear housing.

[0012] As a further improvement of this utility model, the vertical cross-section of the annular groove and the connecting block forms a "convex" shape rotated 180 degrees.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up a rotation mechanism around the Y-axis and a rotation mechanism around the Z-axis, the two rotation mechanisms can be kept from interfering with each other during rotation, and there is no need to design a complex conductive slip ring circuit, thereby reducing manufacturing costs. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the installation of the upper guide rail of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the X-axis moving mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the front guide rail installation of this utility model;

[0019] Figure 5 For the installation of the Y-axis moving mechanism of this utility model;

[0020] Figure 6 This is a schematic diagram of the installation of the fixing sleeve of this utility model;

[0021] Figure 7 This is a schematic diagram showing the installation of the Y-axis rotation mechanism and the Z-axis rotation mechanism of this utility model;

[0022] Figure 8 For the present utility model Figure 7 Enlarged view of a portion of point A in the middle;

[0023] Figure 9 For the present utility model Figure 7 Enlarged view of a section at point B in the middle;

[0024] Figure 10 This is a top view of the connecting plate of this utility model;

[0025] Figure 11 This is a side view of the connecting block of this utility model.

[0026] In the diagram: 1. Crossbeam; 2. Reinforcing rib; 3. Upper guide rail; 4. No. 1 forward / reverse motor; 5. Horizontal guide groove; 6. Vertical beam; 7. Front guide rail; 8. No. 2 forward / reverse motor; 9. Vertical guide groove; 10. Fixed bracket; 11. Sleeve; 12. No. 3 forward / reverse motor; 13. Electric push cylinder; 14. Moving block; 15. No. 1 tensioning wheel; 16. No. 1 transmission belt; 17. Guide block; 18. Sliding frame; 19. No. 2 tensioning wheel; 20. No. 2 transmission belt; 21. Rotary disk; 22. Movable disk; 23. Connecting disk; 24. Connecting plate; 25. Fixed ear; 26. Rotating cutter; 27. Gear; 28. Drive shaft; 29. ​​Connecting block; 30. Lifting shaft; 31. L-shaped frame; 32. Rack; 33. Annular groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 11 In this embodiment of the utility model, a double-beam bridge-type five-axis machining center includes two crossbeams 1. The top of the two crossbeams 1 is welded with reinforcing ribs 2. A vertical beam 6 is slidably mounted on the front end plate of the front end of the reinforcing rib 2. A sliding frame 18 is slidably mounted on the front end plate of the vertical beam 6. A sleeve 11 is mounted on the front end of the sliding frame 18. An X-axis moving mechanism is mounted on the two crossbeams 1, and a Y-axis moving mechanism is mounted on the vertical beam 6. A Y-axis rotating mechanism is mounted above the sleeve 11, penetrating into the sleeve 11 and extending to the bottom of the sleeve 11. A Z-axis rotating mechanism is mounted at the rear end of the sleeve 11, extending into the sleeve 11 and interacting with the Y-axis rotating mechanism.

[0029] In this embodiment: First, the sheet material is placed on a clamping platform that can move in the Z-axis direction. After the sheet material is clamped, during processing, the X-axis moving mechanism can drive the Y-axis moving mechanism to move along the X-axis, so that the rotary tool 26 moves along the X-axis. The Y-axis moving mechanism can drive the rotary tool 26 to move in the vertical direction, thereby adjusting the depth of cut. When processing the side of the sheet material, the rotating mechanism around the Z-axis is started to drive the rotary tool 26 to rotate until the rotary tool 26 rotates to a preset angle. Then, according to the angle of the side being processed, the orientation of the rotary tool 26 is adjusted by starting the rotating mechanism around the Y-axis until the rotary tool 26 abuts against the side of the sheet material being processed. For processing different positions of the sheet material, the clamping platform in the Z-axis direction drives the sheet material to be adjusted on the Z-axis. In this way, all-round processing of the five sides of the sheet material (except the bottom surface of the sheet material) can be achieved.

[0030] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The X-axis moving mechanism includes a first reversible motor 4 installed at one end of the back beam 1. Tensioner 15s are rotatably installed at both ends of the inner side between the two beams 1. The two tensioner 15s are connected by a first transmission belt 16. The output shaft of the first reversible motor 4 is coaxially fixedly connected to one end of a tensioner 15. A guide block 17 extending through to the outside of the reinforcing rib 2 is fixedly connected to the lower half of the outer wall of the first transmission belt 16. A horizontal guide groove 5 for sliding of the guide block 17 is opened inside the reinforcing rib 2 at the front end. An upper guide rail 3 is fixedly installed on the top of the reinforcing rib 2. A moving block 14 is slidably connected to the inner wall of the upper guide rail 3. The moving block 14, the guide block 17 and the back end of the vertical beam 6 are fixedly connected.

[0031] In this embodiment: when adjusting the position of the rotating cutter 26 in the X-axis direction, the first forward and reverse motor 4 is started. The first forward and reverse motor 4 drives the first tensioning wheel 15 connected to it to rotate. With the cooperation of another first tensioning wheel 15, the first transmission belt 16 drives the transmission. The first transmission belt 16 drives the guide block 17 to move along the horizontal guide groove 5. The guide block 17 can drive the Y-axis moving mechanism to move in the X-axis direction. At the same time, the Y-axis moving mechanism drives the moving block 14 to slide along the X-axis along the inner cavity of the upper guide rail 3.

[0032] Please refer to this carefully. Figure 1 , Figure 4 and Figure 5The Y-axis moving mechanism includes a second forward and reverse motor 8 fixedly installed on the outside of the side plate of the vertical beam 6 and two second tensioning wheels 19 rotatably installed on the inside of the vertical beam 6. The two second tensioning wheels 19 are connected by a second transmission belt 20. A sliding frame 18 extending through the outside of the front half of the second transmission belt 20 is fixedly installed on the outer wall. A vertical guide groove 9 for the sliding frame 18 to slide up and down is opened on the front end plate of the vertical beam 6. Front guide rails 7 are fixedly installed on both sides of the front end plate of the vertical beam 6. A sliding groove that slides with the front guide rail 7 is opened on the side of the sliding frame 18 near the front end plate of the vertical beam 6. The front end of the sliding frame 18 is fixedly connected to the top of the sleeve 11.

[0033] In this embodiment: when adjusting the vertical feed amount of the rotary tool 26, the second forward and reverse motor 8 is started, and the second tension wheel 19 connected to it is driven to rotate. At this time, with the cooperation of the second tension wheel 19, the second transmission belt 20 can drive the sliding frame 18 to move up and down in the vertical guide groove 9 in the Y-axis direction, so as to realize the adjustment of the vertical feed amount of the rotary tool 26.

[0034] Please refer to this carefully. Figure 5 , Figure 6 and Figure 7 The Y-axis rotation mechanism includes a fixed bracket 10 fixedly installed at the front end of the sliding frame 18. The fixed bracket 10 is located above the sleeve 11. A No. 3 forward and reverse motor 12 is fixedly installed on the top of the fixed bracket 10. The output shaft of the No. 3 forward and reverse motor 12 passes through to the bottom of the fixed bracket 10. The output end of the No. 3 forward and reverse motor 12 is fixedly connected to a drive shaft 28 that passes through the inside of the sleeve 11. The drive shaft 28 is rotatably connected to the sleeve 11. A movable disk 22 is coaxially fixedly connected to the bottom end of the drive shaft 28. The Y-axis rotation mechanism also includes a connecting disk 23 rotatably installed on the inner wall of the sleeve 11. The connecting disk 23 is connected to the movable disk 22. A fixed ear 25 is fixedly installed at the bottom end of the connecting disk 23. A rotating cutter 26 is rotatably installed on the inner side of the fixed ear 25.

[0035] In this embodiment: After the Z-axis rotation mechanism is adjusted, the rotating cutter 26 is in an inclined state. At this time, the rotating cutter 26 needs to be pressed against the side of the plate to be processed. The No. 3 forward and reverse motor 12 is driven to drive the drive shaft 28 connected to it to rotate. The drive shaft 28 drives the movable disk 22 to rotate. The movable disk 22 drives the connecting disk 23 to rotate synchronously through the lifting shaft 30. The connecting disk 23 can then drive the rotating cutter 26 to rotate through the fixed lug 25, so that the inclined rotating cutter 26 is pressed against the side of the plate to be processed.

[0036] Please refer to this carefully. Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The Z-axis rotation mechanism includes an electric push cylinder 13 fixedly mounted on the top of the fixed bracket 10. A connecting plate 24 is fixedly mounted on the output end of the electric push cylinder 13, and a connecting block 29 is fixedly mounted on the top of the connecting plate 24. The Z-axis rotation mechanism also includes a rotating disk 21 sleeved on the inner wall of the sleeve 11. The rotating disk 21 is located above the movable disk 22. A circular hole is opened at the center of the rotating disk 21. The diameter of the circular hole is larger than the diameter of the drive shaft 28. An annular groove 33 is opened at the bottom end of the rotating disk 21 and is movably connected to the connecting block 29. A lifting shaft 30 is fixedly mounted at the bottom end of the rotating disk 21, penetrating the movable disk 22 and extending to the bottom end of the connecting disk 23. The lifting shaft 30 is slidably connected to the movable disk 22 and the connecting disk 23. An L-shaped frame 31 is fixedly mounted at the bottom end of the lifting shaft 30. A rack 32 is fixedly mounted at the bottom end of the crossbar of the L-shaped frame 31. A gear 27 meshes with the outer side of the rack 32. The gear 27 is coaxially fixedly connected to the rotating shaft on the outer shell of the fixed ear 25.

[0037] In this embodiment: when adjusting the angle of the rotating cutter 26, the electric push cylinder 13 is activated, which drives the connecting plate 24 at its output end to move synchronously. The synchronously moving connecting plate 24 drives the connecting block 29 to move synchronously. The connecting block 29 drives the rotating disk 21 to slide up and down through the annular groove 33. The vertically sliding rotating disk 21 pushes the L-shaped frame 31 to move up and down through the lifting shaft 30. The L-shaped frame 31 pulls the rack 32 to move up and down. The vertically moving rack 32 drives the gear 27 to rotate. The rotating gear 27 can then drive the rotating cutter 26 to adjust the angle.

[0038] It should be noted that when the rotating mechanism around the Y-axis is running, the movable disk 22 drives the rotating disk 21 to rotate synchronously through the lifting shaft 30. At this time, the rotating disk 21 drives the lifting shaft 30 and the rack 32 to rotate synchronously. The rotating disk 21 rotates relative to the connecting block 29 through the annular groove 33. This design can avoid interference between the rotating mechanism around the Y-axis and the rotating mechanism around the Z-axis during operation, and can always keep the rack 32 and the gear 27 meshing, and can maintain linkage with the electric push cylinder 13.

[0039] Please refer to this carefully. Figure 8 , Figure 10 and Figure 11 The vertical cross-section of the annular groove 33 and the connecting block 29 is a "convex" shaped structure rotated 180 degrees.

[0040] In this embodiment, this design can prevent the annular groove 33 from separating from the connecting block 29.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-beam bridge-type five-axis machining center, comprising two crossbeams (1), characterized in that, The top of the two crossbeams (1) is welded with reinforcing ribs (2). A vertical beam (6) is slidably installed on the front end plate of the reinforcing rib (2). A sliding frame (18) is slidably installed on the front end plate of the vertical beam (6). A sleeve (11) is installed at the front end of the sliding frame (18). An X-axis moving mechanism is installed on the two crossbeams (1). A Y-axis moving mechanism is installed on the vertical beam (6). A Y-axis rotating mechanism is installed above the sleeve (11) that penetrates into the sleeve (11) and extends to the bottom of the sleeve (11). A Z-axis rotating mechanism that extends into the sleeve (11) and interacts with the Y-axis rotating mechanism is installed at the rear end of the sleeve (11).

2. The double-beam bridge type five-axis machining center according to claim 1, characterized in that, The X-axis moving mechanism includes a first reversible motor (4) installed at one end of the crossbeam (1) at the back end. A tension wheel (15) is rotatably installed at both ends of the inner side between the two crossbeams (1). The two tension wheels (15) are connected by a first transmission belt (16). The output shaft of the first reversible motor (4) is coaxially fixedly connected to one end of the tension wheel (15). A guide block (17) penetrating to the outside of the reinforcing rib (2) is fixedly connected to the outer wall of the lower half of the first transmission belt (16). A horizontal guide groove (5) for sliding of the guide block (17) is opened inside the reinforcing rib (2) at the front end. An upper guide rail (3) is fixedly installed on the top of the reinforcing rib (2). A moving block (14) is slidably connected to the inner wall of the upper guide rail (3). The moving block (14), the guide block (17) and the back end of the vertical beam (6) are fixedly connected.

3. A double-beam bridge-type five-axis machining center according to claim 2, characterized in that, The Y-axis moving mechanism includes a second forward and reverse motor (8) fixedly installed on the outside of the side plate of the vertical beam (6) and two second tensioning wheels (19) rotatably installed on the inside of the vertical beam (6). The two second tensioning wheels (19) are connected by a second transmission belt (20). The outer wall of the front half of the second transmission belt (20) is fixedly installed with a sliding frame (18) that extends through to the outside of the vertical beam (6). The front end plate of the vertical beam (6) is provided with a vertical guide groove (9) for the sliding frame (18) to slide up and down. Front guide rails (7) are fixedly installed on both sides of the front end plate of the vertical beam (6). The sliding frame (18) is provided with a sliding groove on the side near the front end plate of the vertical beam (6) that slides with the front guide rail (7). The front end of the sliding frame (18) is fixedly connected to the top of the sleeve (11).

4. A double-beam bridge type five-axis machining center according to claim 3, characterized in that, The Y-axis rotation mechanism includes a fixed bracket (10) fixedly installed at the front end of the sliding frame (18). The fixed bracket (10) is located above the sleeve (11). A No. 3 forward and reverse motor (12) is fixedly installed on the top of the fixed bracket (10). The output shaft of the No. 3 forward and reverse motor (12) passes through to the bottom of the fixed bracket (10). The output end of the No. 3 forward and reverse motor (12) is fixedly connected to a drive shaft (28) that passes through the inside of the sleeve (11). The drive shaft (28) is rotatably connected to the sleeve (11). The bottom end of the drive shaft (28) is coaxially fixedly connected to a movable disk (22).

5. A double-beam bridge type five-axis machining center according to claim 4, characterized in that, The Y-axis rotation mechanism further includes a connecting plate (23) rotatably mounted on the inner wall of the sleeve (11). The connecting plate (23) is connected to the movable plate (22). A fixing ear (25) is fixedly mounted at the bottom end of the connecting plate (23). A rotating cutter (26) is rotatably mounted on the inner side of the fixing ear (25).

6. A double-beam bridge type five-axis machining center according to claim 5, characterized in that, The Z-axis rotation mechanism includes an electric push cylinder (13) fixedly installed on the top of the fixed bracket (10), a connecting plate (24) fixedly installed on the output end of the electric push cylinder (13), and a connecting block (29) fixedly installed on the top of the connecting plate (24). The Z-axis rotation mechanism further includes a rotating disk (21) sleeved on the inner wall of the sleeve (11). The rotating disk (21) is located above the movable disk (22). A circular hole is provided at the center of the rotating disk (21), and the diameter of the circular hole is larger than the diameter of the drive shaft (28). An annular groove (33) is provided at the bottom end of the rotating disk (21) and is movably connected to the connecting block (29). A through-hole is fixedly installed at the bottom end of the rotating disk (21) through the movable disk (22). 2) A lifting shaft (30) extends to the bottom of the connecting plate (23). The lifting shaft (30) is slidably connected to the movable plate (22) and the connecting plate (23). An L-shaped frame (31) is fixedly installed at the bottom of the lifting shaft (30). A rack (32) is fixedly installed at the bottom of the crossbar of the L-shaped frame (31). A gear (27) meshes with the outside of the rack (32). The gear (27) is coaxially fixedly connected to the rotating shaft on the outer shell of the fixed ear (25).

7. A double-beam bridge type five-axis machining center according to claim 6, characterized in that, The vertical cross-section of the annular groove (33) and the connecting block (29) forms a "convex" shape rotated 180 degrees.

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