Clamping equipment for CNC (computer numerical control) machining center

Abstract

The utility model relates to the technical field of clamping equipment, in particular to clamping equipment for a CNC machining center. According to the technical scheme, the device comprises a machine tool installation base, a fixed die and a movable die, the fixed die is fixed to the upper end of the machine tool installation base through a locking bolt, the movable die is installed over the fixed die, a loading groove is formed in the upper end of the fixed die, and an extrusion hole is formed in the center of the movable die; the loading groove and the extrusion hole are both of an arc structure, telescopic cylinders are fixed to the two sides of the machine tool mounting base, connecting blocks are fixed to the output ends of the telescopic cylinders, and fixing assemblies are arranged between the connecting blocks and the outer side of the movable mold. The spherical workpiece can be extruded and fixed through downward pressing of the movable die, and after the movable die is loosened, the spherical workpiece can be driven to rotate through rotation of the idler wheels, so that surface multi-position machining can be better conducted on the spherical workpiece.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping equipment technical field, specifically is a kind of clamping equipment for CNC machining center. BACKGROUND

[0002] CNC machining is a kind of automatic machine tool processing technology controlled by computer. This technology processes blank material into semi-finished or finished parts through tool cutting. The characteristics of CNC machining include high automation, suitability for single-piece or mass production, fast processing speed, high surface quality, and suitability for all materials such as plastic, metal, wood, glass, ceramic and synthetic material.

[0003] When machining workpieces, clamps are usually used to fix workpieces. In this case, the common fixing clamp is a three-jaw chuck. However, not all workpieces with certain shapes can be fixed using a three-jaw chuck. Workpieces with spherical structures are difficult to fix. Therefore, a clamping device for fixing workpieces with spherical structures needs to be designed. SUMMARY

[0004] The utility model aims at providing a kind of clamping equipment for CNC machining center to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a machine tool mounting seat, a fixed mold and a movable mold are included. The fixed mold is fixed on the upper end of the machine tool mounting seat by locking bolts. The movable mold is installed directly above the fixed mold. The upper end of the fixed mold is provided with a loading groove. The center position of the movable mold is provided with an extrusion hole. The loading groove and the extrusion hole are both arc structures. The machine tool mounting seat is fixed with telescopic cylinders on both sides. The output end of the telescopic cylinder is fixed with a connecting block. A fixing assembly is arranged between the connecting block and the outer side of the movable mold. A rolling assembly is arranged on the upper end of the machine tool mounting seat and aligned with the bottom of the loading groove.

[0006] Preferably, the rolling assembly includes a mounting groove and rollers. The mounting groove is provided at the center position of the upper end of the machine tool mounting seat. The bottom of the loading groove is aligned with the mounting groove and provided with a connecting hole. A telescopic plate is slidingly connected in the mounting groove. An installation rack is fixed on the upper end of the telescopic plate. The rollers are rotatably connected between the installation racks. A servo motor is fixed on the outer side of the installation rack to drive the rollers to rotate. A hydraulic cylinder is fixed in the mounting groove, and the output end of the hydraulic cylinder is fixed on the telescopic plate.

[0007] Preferably, a non-slip pad is fixed on the side wall of the loading groove, and a ball is installed on the side wall of the extrusion hole.

[0008] Preferably, the fixing assembly comprises a fixing hole and an insertion block, the insertion block is installed on the connecting block close to the movable mold, and the fixing hole is arranged on the movable mold close to the connecting block.

[0009] Preferably, a sliding block is slidably connected in the connecting block and at a position corresponding to the insertion block, a threaded rod is rotatably connected in the connecting block, one end of the inner side of the threaded rod is threadedly connected in the sliding block, and one end of the outer side of the threaded rod extends out of the connecting block and is fixed with a knob.

[0010] Preferably, positioning rods are fixed at four corners of the bottom of the fixed mold, positioning grooves corresponding to the positioning rods are arranged on the upper end of the machine tool mounting base, guide rods are fixed at four corners of the bottom of the movable mold, and guide grooves corresponding to the guide rods are arranged on the upper end of the fixed mold.

[0011] Compared with the prior art, the ball-shaped workpiece can be fixedly pressed by the downward pressing of the movable mold, and after the movable mold is loosened, the ball-shaped workpiece can be rotated by the rotation of the roller, so that the surface of the ball-shaped workpiece can be better processed at multiple positions. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front sectional structure schematic view of the clamping equipment for the CNC machining center;

[0013] Figure 2 It is a front appearance structure schematic view of the clamping equipment for the CNC machining center;

[0014] Figure 3 It is the clamping equipment for the CNC machining center; Figure 1 It is an enlarged structure schematic view of position A;

[0015] Figure 4 It is an appearance structure schematic view of the movable mold of the clamping equipment for the CNC machining center.

[0016] In the figure: 1, machine tool mounting base; 11, mounting groove; 12, telescopic plate; 13, mounting frame; 14, roller; 15, locking bolt; 16, hydraulic cylinder; 2, fixed mold; 21, loading groove; 22, anti-skid pad; 23, connecting hole; 24, positioning rod; 3, movable mold; 31, extrusion hole; 32, ball; 33, guide rod; 4, telescopic cylinder; 41, connecting block; 42, sliding block; 43, threaded rod; 44, insertion block; 45, fixing hole; 46, knob. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-4 The utility model provides a technical scheme: including lathe mounting seat 1, fixed mould 2 and movable mould 3, fixed mould 2 is fixed on lathe mounting seat 1 upper end through locking bolt 15, movable mould 3 is installed in fixed mould 2 directly above, and fixed mould 2 upper end is provided with loading groove 21, and movable mould 3 center position is provided with extrusion hole 31, and loading groove 21 and extrusion hole 31 are all arc structures, and the both sides of lathe mounting seat 1 are fixed with telescopic cylinder 4, and the output end of telescopic cylinder 4 is fixed with connecting block 41, and fixed assembly is arranged between connecting block 41 and movable mould 3 outside, and the upper end of lathe mounting seat 1 is provided with rolling assembly with loading groove 21 bottom alignment position, and the bottom of fixed mould 2 is fixed with locating rod 24 in four corners, and the upper end of lathe mounting seat 1 is provided with the locating slot of locating rod 24 adaptation, and the bottom of movable mould 3 is fixed with guide rod 33 in four corners, and the upper end of fixed mould 2 is provided with the guide slot of guide rod 33 adaptation.

[0019] The rolling assembly includes mounting groove 11 and gyro wheel 14, and mounting groove 11 is arranged in the center position of the upper end of lathe mounting seat 1, and the bottom of loading groove 21 is aligned with mounting groove 11 and is provided with connecting hole 23, and telescopic plate 12 is slidably connected in mounting groove 11, and mounting frame 13 is fixed on the upper end of telescopic plate 12, and gyro wheel 14 is rotatably connected between mounting frame 13, and servo motor that drives gyro wheel 14 to rotate is fixed on the outside of mounting frame 13, and hydraulic cylinder 16 is fixed in mounting groove 11, and the output end of hydraulic cylinder 16 is fixed on telescopic plate 12, and antiskid pad 22 is fixed on the side wall of loading groove 21, and ball 32 is installed on the side wall of extrusion hole 31.

[0020] The fixed assembly includes fixed hole 45 and plug block 44, and plug block 44 is installed on the side of connecting block 41 close to movable mould 3, and fixed hole 45 is arranged on the side of movable mould 3 close to connecting block 41, and plug block 44 end is inserted into fixed hole 45, and sliding block 42 is slidably connected in connecting block 41 and corresponds to plug block 44 position, and screw rod 43 is rotatably connected in connecting block 41, and one end of screw rod 43 inside is threadedly connected in sliding block 42, and one end of screw rod 43 outside protrudes from connecting block 41 and is fixed with knob 46.

[0021] Working principle: first, the device is connected to the external power supply, the drive of telescopic cylinder 4, can drive the movable mold 3 up and down telescopic, the distance between movable mold 3 and fixed mold 2 is greater than the diameter of spherical workpiece, the workpiece is placed in the loading groove 21, at this time, the lower pressure of movable mold 3, the upper surface of spherical workpiece is stretched from the upper end of extrusion hole 31, and the extrusion hole 31 side wall is used for pressing, which ensures the stability of the workpiece, second, when the spherical workpiece surface needs to be processed at different positions, the roller 14 and movable mold 3 can be lifted synchronously, so that the bottom of the spherical workpiece is separated from the side wall of the loading groove 21, at this time, the independent rotation of the roller 14 can drive the spherical workpiece to rotate, and after rotating to the specified position, the spherical workpiece is fixed, which is simple and convenient, ensures the stable clamping of the spherical workpiece, and can freely switch the surface processing position, second, when processing spherical workpieces with different diameters, only the fixed mold 2 and movable mold 3 with the same diameter need to be replaced, wherein the rotation of the knob 46 can drive the threaded rod 43 to rotate, so that the sliding block 42 and the plug block 44 slide, when the plug block 44 is pulled out of the fixed hole 45, the connection block 41 and the movable mold 3 can be fixed, second, the fixed locking bolt 15 is released, the fixed mold 2 can be easily removed, and the fixed mold 2 and movable mold 3 with the same diameter loading groove 21 and extrusion hole 31 can be replaced.

[0022] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0023] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A clamping device for CNC machining center, comprising a machine tool mounting seat (1), a fixed mold (2) and a movable mold (3), characterized in that: The fixed mold (2) is fixed on the upper end of the machine tool mounting seat (1) through locking bolts (15), the movable mold (3) is installed above the fixed mold (2), the upper end of the fixed mold (2) is provided with a loading groove (21), the movable mold (3) is provided with an extrusion hole (31) at the center position, the loading groove (21) and the extrusion hole (31) are both arc structures, the machine tool mounting seat (1) is fixed with telescopic cylinders (4) on both sides, the output end of the telescopic cylinder (4) is fixed with a connecting block (41), a fixing assembly is arranged between the connecting block (41) and the outer side of the movable mold (3), and a rolling assembly is arranged on the upper end of the machine tool mounting seat (1) and aligned with the bottom of the loading groove (21).

2. The clamping apparatus for CNC machining center according to claim 1, characterized in that: The rolling assembly comprises a mounting groove (11) and a roller (14), the mounting groove (11) is arranged at the center position of the upper end of the machine tool mounting seat (1), the bottom of the loading groove (21) is aligned with the mounting groove (11) and is provided with a connecting hole (23), the telescopic plate (12) is slidably connected in the mounting groove (11), the mounting rack (13) is fixed on the upper end of the telescopic plate (12), the roller (14) is rotatably connected between the mounting racks (13), the outer side of the mounting rack (13) is fixed with a servo motor for driving the roller (14) to rotate, and the hydraulic cylinder (16) is fixed in the mounting groove (11) and the output end of the hydraulic cylinder (16) is fixed on the telescopic plate (12).

3. The clamping apparatus for CNC machining center according to claim 1, characterized in that: The side wall of the loading groove (21) is fixed with a non-slip pad (22), and the side wall of the extrusion hole (31) is provided with a ball (32).

4. The clamping apparatus for CNC machining center according to claim 1, characterized in that: The fixing assembly comprises a fixed hole (45) and an insertion block (44), the insertion block (44) is arranged on the side of the connecting block (41) close to the movable mold (3), the fixed hole (45) is arranged on the side of the movable mold (3) close to the connecting block (41), and the end of the insertion block (44) is inserted into the fixed hole (45).

5. The clamping apparatus for CNC machining center according to claim 4, characterized in that: The sliding block (42) is slidably connected in the connecting block (41) and corresponds to the position of the insertion block (44), the threaded rod (43) is rotatably connected in the connecting block (41), one end of the inner side of the threaded rod (43) is threadedly connected in the sliding block (42), and one end of the outer side of the threaded rod (43) protrudes out of the connecting block (41) and is fixed with a knob (46).

6. The clamping apparatus for CNC machining center according to claim 1, characterized in that: The bottom of the fixed mold (2) is fixed with a positioning rod (24), the upper end of the machine tool mounting seat (1) is provided with a positioning groove matched with the positioning rod (24), and the bottom of the movable mold (3) is fixed with a guide rod (33).

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