Numerical control rotary table of vertical numerical control machining center

Abstract

The utility model provides a numerical control rotary table of a vertical numerical control machining center, and relates to the technical field of numerical control machining. The utility model is used for solving the technical problem that in the existing workpiece numerical control machining, the workpiece is generally fixed on the rotary table by using a bolt, so that the disassembly and assembly are relatively inconvenient. A numerical control rotary table of a vertical numerical control machining center comprises a base, a fixed bottom plate is installed on the base, a fixed shell is installed on the fixed bottom plate, a servo motor is installed in the fixed shell, a rotary table is rotatably arranged on the fixed shell, a plurality of protruding blocks are fixedly connected to the bottom of the rotary table, a worm is rotatably arranged in the fixed shell, and the worm is matched with the protruding blocks. The worm and an output shaft of the servo motor are fixedly connected with rotating wheels, and the two rotating wheels are jointly provided with a belt. A workpiece is placed in the center of each sliding clamping block, and the sliding clamping blocks are pushed to slide and reset through the first elastic pieces, so that the workpiece is clamped and fixed, and the effect of conveniently fixing the workpiece is achieved.

Description

Technical Field

[0001] The utility model provides a numerical control turntable of a vertical numerical control machining center, which relates to the technical field of numerical control machining. Background Technique

[0002] Numerical control machining refers to a process method of machining parts on a numerical control machine tool. The process regulations of numerical control machine tool machining and traditional machine tool machining are generally the same, but obvious changes have also occurred. The mechanical machining method that uses digital information to control the displacement of parts and tools is an effective way to solve problems such as variable part varieties, small batch sizes, complex shapes, high precision, etc., and to achieve high-efficiency and automated machining.

[0003] In the existing numerical control machining of workpieces, generally bolts are used to fix the workpiece on the turntable, and then the turntable is rotated to make the workpiece contact with the milling cutter for machining the workpiece. However, using bolts to fix the workpiece is inconvenient during disassembly and assembly, which affects the machining efficiency.

[0004] Therefore, it is necessary to provide a numerical control turntable of a vertical numerical control machining center that is convenient for clamping workpieces. Content of the Utility Model

[0005] In order to overcome the disadvantage that in the existing numerical control machining of workpieces, generally bolts are used to fix the workpiece on the turntable and it is inconvenient during disassembly and assembly, the utility model provides a numerical control turntable of a vertical numerical control machining center that is convenient for clamping workpieces.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solution: A numerical control turntable of a vertical numerical control machining center includes a base, a fixed bottom plate, a fixed shell, a servo motor, a runner, a belt, a worm, a convex block and a rotating table. A fixed bottom plate is installed on the base, a fixed shell is installed on the fixed bottom plate, a servo motor is installed in the fixed shell, a rotating table is rotatably arranged on the fixed shell, a plurality of convex blocks are fixedly connected to the bottom of the rotating table, a worm is rotatably arranged in the fixed shell, the worm cooperates with the convex block, runners are fixedly connected to both the worm and the output shaft of the servo motor, a belt is jointly arranged on the two runners, and further includes a sliding clamping block and a first elastic member. A plurality of sliding clamping blocks are slidably arranged on the rotating table, and a first elastic member is fixedly connected between the sliding clamping block and the rotating table.

[0007] In one of the embodiments, a plurality of reinforcing blocks are jointly installed on the fixed bottom plate and the base.

[0008] In one of the embodiments, it further includes four first connecting plates installed on both sides of the base. A guide rod is jointly fixedly connected to the two first connecting plates on both sides, two scraping plates are jointly slidably arranged on the two guide rods, and a second elastic member for pushing the scraping plate to reset is wound around the guide rod.

[0009] In one embodiment, it further includes a baffle installed on the fixed base plate. An extension plate is slidably arranged inside the baffle, a second connecting plate is slidably arranged on the baffle, a plurality of clamping rods are slidably arranged on the second connecting plate, a pulling plate is fixedly connected to the plurality of clamping rods together, the clamping rods are clamped with the extension plate, and a third elastic member for resetting is wound around the clamping rods.

[0010] In one embodiment, a protruding cross plate is arranged at the top of the extension plate.

[0011] In one embodiment, it further includes a fixed screw rod fixed on the rotating table. A fixed nut is arranged on the fixed screw rod in a threaded manner. The pressing plate is installed on the rotating table through the fixed screw rod and the fixed nut. A limiting plate is rotatably arranged between the two pressing plates, and the limiting plate is slidably connected to each sliding clamping block.

[0012] Compared with the prior art, the numerical control turntable provided by the embodiment of the present utility model has the following advantages: 1. By placing the workpiece at the center of each sliding clamping block and pushing the sliding clamping block to slide and reset through the first elastic member to clamp and fix the workpiece, the effect of facilitating the fixation of the workpiece is achieved, making the disassembly and assembly convenient and increasing the working efficiency.

[0013] 2. By pulling the scraping plate to slide along the two guide rods to the side away from the fixed base plate, so that the scraping plate scrapes off the debris on the base. After releasing the scraping plate, the second elastic member pushes the scraping plate to slide and reset, achieving the effect of cleaning the debris on the base.

[0014] 3. By pulling up the extension plate and pushing the clamping rod to slide and reset towards the side close to the extension plate through the third elastic member, so that the clamping rod is clamped with the extension plate to fix the extension plate. The extension plate and the baffle jointly block the splashing debris, achieving the effect of avoiding the random splashing of debris.

[0015] 4. By rotating the limiting plate, so that each sliding clamping block gradually slides away from the center along the arc-shaped groove on the limiting plate. When the sliding clamping block resets through the first elastic member, the sliding clamping block pulls the limiting plate to rotate and reset in the reverse direction through the arc-shaped groove, achieving the effect of conveniently pushing open each sliding clamping block simultaneously. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the base, fixed base plate and reinforcing block of the present utility model.

[0018] Figure 3 It is a three-dimensional sectional structural schematic diagram of the runner, belt and worm of the present utility model.

[0019] Figure 4This is a schematic three-dimensional sectional view of the rotary table, limit plate and first elastic member of the present utility model.

[0020] Figure 5 This is a schematic three-dimensional structure view of the guide rod, scraper and second elastic member of the present utility model.

[0021] Figure 6 This is a schematic three-dimensional sectional view of the fixed base plate, baffle plate and extension plate of the present utility model.

[0022] Figure 7 This is of the present utility model Figure 6 Enlarged view of location A.

[0023] The labels in the figure are: 1 - base, 2 - fixed base plate, 3 - reinforcement block, 4 - fixed shell, 5 - servo motor, 6 - runner, 7 - belt, 8 - worm, 9 - convex block, 10 - rotary table, 11 - sliding clamping block, 12 - first elastic member, 13 - first connecting plate, 14 - guide rod, 15 - scraper, 16 - second elastic member, 17 - baffle plate, 18 - extension plate, 19 - clamping rod, 20 - second connecting plate, 21 - third elastic member, 22 - pulling plate, 23 - limit plate, 24 - pressing plate, 25 - fixing screw, 26 - fixing nut. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: A numerical control rotary table of a vertical CNC machining center. Refer to Figures 1-4As shown in the figure, it includes a base 1, a fixed bottom plate 2, a fixed shell 4, a servo motor 5, a runner 6, a belt 7, a worm 8, a convex block 9 and a rotating table 10. The fixed bottom plate 2 is installed on the base 1 by means of bolt connection. On the fixed bottom plate 2 and the base 1, two reinforcing blocks 3 are installed on each side by means of bolt connection to strengthen the connection between the base 1 and the fixed bottom plate 2. The fixed shell 4 is installed on the fixed bottom plate 2 by means of bolt connection. A servo motor 5 is installed inside the fixed shell 4. At the top of the fixed shell 4, a rotating table 10 for placing workpieces is rotatably arranged. A plurality of convex blocks 9 are fixedly connected to the bottom of the rotating table 10 in a circumferential direction by welding. A worm 8 is rotatably arranged inside the fixed shell 4. The worm 8 cooperates with the convex blocks 9. A runner 6 is fixedly connected to the output shafts of both the worm 8 and the servo motor 5 by keys. A belt 7 for transmission is arranged between the two runners 6. It also includes a sliding clamping block 11 and a first elastic member 12. Six sliding clamping blocks 11 for clamping workpieces are slidably arranged on the rotating table 10. A first elastic member 12 for resetting is fixedly connected between the sliding clamping block 11 and the rotating table 10 by welding.

[0026] When CNC machining of the workpiece is required, first push the sliding clamping block 11 to slide and compress the first elastic member 12, then place the workpiece at the center of each sliding clamping block 11. After releasing the sliding clamping block 11, at this time, the first elastic member 12 pushes the sliding clamping block 11 to slide back to its original position and clamps and fixes the workpiece. Subsequently, start the servo motor 5 to drive the runner 6 to rotate, drive another runner 6 to rotate synchronously through the transmission of the belt 7, and then make the worm 8 rotate self. At this time, through the cooperation of the thread of the worm 8 and the convex block 9, the rotating table 10 rotates on the fixed shell 4 to machine the workpiece.

[0027] Embodiment 2: On the basis of Embodiment 1, refer to Figure 5 As shown in the figure, it also includes four first connecting plates 13 installed on both sides of the base 1 by means of bolt connection. A guide rod 14 is fixedly connected between the two first connecting plates 13 on both sides by welding. Two cleaning scrapers 15 for the base 1 are slidably arranged horizontally on the two guide rods 14. A second elastic member 16 for pushing the scraper 15 to slide back to the side close to the base 1 is wound around the guide rod 14.

[0028] When machining the workpiece, a lot of debris will be generated. The flying debris is easy to remain on the base 1. By pulling the scraper 15 to slide along the two guide rods 14 to the side away from the fixed bottom plate 2, at this time, the second elastic member 16 is compressed and deformed by force, so that the scraper 15 scrapes off the debris on the base 1. After releasing the scraper 15, the second elastic member 16 returns to its original state after losing the force, and then pushes the scraper 15 to slide back to its original position.

[0029] Refer to Figure 6 and Figure 7As shown, it further includes baffles 17 installed on the front and rear sides of the fixed base plate 2 by means of bolt connection. An extension plate 18 is slidably arranged up and down inside the baffle 17. A protruding cross plate is arranged at the top of the extension plate 18 to facilitate lifting the extension plate 18. A second connecting plate 20 is slidably arranged horizontally on the side of the baffle 17. A plurality of clamping rods 19 are slidably arranged horizontally on the second connecting plate 20. A pulling plate 22 is fixedly connected to the plurality of clamping rods 19 by welding. The clamping rods 19 are clamped with the extension plate 18, and a third elastic member 21 for resetting is wound around the clamping rods 19.

[0030] When processing a workpiece, to avoid the splashing of debris, by pulling the pulling plate 22, the pulling plate 22 drives the clamping rods 19 to slide along the second connecting plate 20 to the side away from the baffle 17. At this time, the third elastic member 21 is compressed and deformed, and the clamping rods 19 are disengaged from the clamping connection with the baffle 17. Then, the extension plate 18 is pulled upward. Subsequently, the pulling plate 22 is released. At this time, the third elastic member 21 returns to its original state without force, and further pushes the clamping rods 19 to slide back to their positions, so that the clamping rods 19 are clamped with the extension plate 18 to fix the extension plate 18. The extension plate 18 and the baffle 17 jointly block the splashing debris.

[0031] Refer to Figure 4 As shown, it further includes a fixed screw 25 fixedly connected to the rotating table 10 by welding. A fixed nut 26 is threadedly arranged on the fixed screw 25. The pressing plate 24 is installed on the rotating table 10 through the fixed screw 25 and the fixed nut 26. A limiting plate 23 is rotatably arranged between the two pressing plates 24. Six arc-shaped guide grooves are formed on the limiting plate 23. The limiting plate 23 is slidably connected to each sliding clamping block 11.

[0032] When it is necessary to push open each sliding clamping block 11 simultaneously, by rotating the limiting plate 23, each sliding clamping block 11 gradually slides away from the center along the arc-shaped groove on the limiting plate 23. When the sliding clamping block 11 is reset by the first elastic member 12, the sliding clamping block 11 pulls the limiting plate 23 to rotate reversely and reset through the arc-shaped groove.

[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A CNC turntable of a vertical CNC machining center, comprising a base (1), a fixed base plate (2), a fixed shell (4), a servo motor (5), a rotating wheel (6), a belt (7), a worm (8), a convex block (9) and a rotating table (10), wherein the fixed base plate (2) is mounted on the base (1), the fixed shell (4) is mounted on the fixed base plate (2), the servo motor (5) is mounted in the fixed shell (4), the rotating table (10) is rotatably arranged on the fixed shell (4), a plurality of convex blocks (9) are fixedly connected to the bottom of the rotating table (10), a worm (8) is rotatably arranged in the fixed shell (4), the worm (8) cooperates with the convex block (9), the output shafts of the worm (8) and the servo motor (5) are both fixedly connected with the rotating wheel (6), and the two rotating wheels (6) are commonly provided with a belt (7), characterized in that: It also comprises a sliding clamping block (11) and a first elastic member (12); a plurality of sliding clamping blocks (11) are slidingly arranged on the rotating platform (10); and a first elastic member (12) is fixedly connected between the sliding clamping block (11) and the rotating platform (10).

2. A CNC turntable for a vertical CNC machining center as claimed in claim 1, characterized in that: A plurality of reinforcement blocks (3) are installed on the fixed bottom plate (2) and the base (1).

3. A CNC turntable for a vertical CNC machining center as claimed in claim 1, characterized in that: It also comprises four first connecting plates (13) mounted on both sides of the base (1), two first connecting plates (13) on both sides being fixedly connected to a guide rod (14), two scrapers (15) being slidably arranged on the two guide rods (14), and a second elastic member (16) for pushing the scraper (15) to return to its original position is wound around the guide rod (14).

4. A CNC turntable for a vertical CNC machining center as claimed in claim 1, characterized in that: It also includes a baffle (17) mounted on the fixed bottom plate (2), an extension plate (18) being slidably arranged inside the baffle (17), a second connecting plate (20) being slidably arranged on the baffle (17), a plurality of clamping rods (19) being slidably arranged on the second connecting plate (20), a pull plate (22) being fixedly connected to the plurality of clamping rods (19), the clamping rods (19) being clamped with the extension plate (18), and a third elastic member (21) for resetting being wound around the clamping rods (19).

5. A CNC turntable for a vertical CNC machining center as claimed in claim 4, characterized in that: A protruding horizontal plate is arranged on the top of the extension plate (18).

6. The CNC turntable of a vertical CNC machining center according to claim 1, characterized in that: The invention also comprises a fixing screw (25) fixedly connected to the rotating platform (10), a fixing nut (26) being threadedly arranged on the fixing screw (25), a pressing plate (24) being mounted on the rotating platform (10) via the fixing screw (25) and the fixing nut (26), a limiting plate (23) being rotatably arranged between the two pressing plates (24), and the limiting plate (23) being slidably connected to each sliding clamping block (11).

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