Clamping tool for vertical machining center

Abstract

The utility model discloses a clamping tool for a vertical machining center, and relates to the field of machining equipment. The clamping tool for the vertical machining center comprises a guide sliding rail and a clamping mechanism arranged on the guide sliding rail in a sliding mode, the clamping mechanism comprises a lower clamping base, a lateral air pressure clamp and an adjustable upper clamping base, and the adjustable upper clamping base comprises an upper clamping plate and a movable pressing plate which is arranged at the inner bottom of the upper clamping plate and can ascend and descend. According to the clamping tool for the vertical machining center, by rotating an adjusting rod, the adjusting rod drives a worm to rotate, the worm and a turbine are in meshing transmission, the turbine rotates in an upper clamping plate, a threaded column drives a movable pressing plate to move up and down, and therefore the distance between the bottom of the movable pressing plate and the inner top of a lower clamping base is adjusted; in this way, when workpieces are clamped, quick opening and closing can be achieved, meanwhile, some workpieces with slightly ultrahigh sizes can be effectively clamped, and the overall adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a clamping tool for a vertical machining center. Background Art

[0002] A vertical machining center is a multifunctional processing equipment used for turning, cutting, grinding, drilling and milling workpieces. It clamps the workpiece by internal clamping fixtures and then uses a machining head to process the workpiece. It has the advantages of high precision, speed and efficiency.

[0003] At present, the vast majority of vertical machining center clamping fixtures use pneumatic clamping tools, which control the opening and closing of two sets of clamping components through pneumatic cylinders to achieve clamping and releasing of the workpiece. However, in actual use, in order to meet the design requirements of rapid opening and closing, many pneumatic clamping fixtures use smaller pneumatic parts, which makes the opening and closing degree of the entire fixture unadjustable. When encountering some workpieces with slightly larger sizes, it cannot be used and the clamping fixture needs to be replaced, which is very inconvenient. For this reason, a clamping fixture for vertical machining centers is specially designed to solve the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a clamping tool for a vertical machining center, which solves the problem that many pneumatic clamping tooling adopts a smaller size of pneumatic parts to meet the design requirements of rapid opening and closing, which makes the opening and closing degree of the entire clamp unadjustable. When encountering some workpieces with slightly larger sizes, it cannot be used and the clamping tooling needs to be replaced, which is very inconvenient.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A clamping tool for a vertical machining center, comprising a guide rail and a clamping mechanism slidably arranged on the guide rail, wherein the clamping mechanism comprises:

[0006] A lower clamping seat is slidably arranged on the top of the guide rail;

[0007] Lateral pneumatic clamps, which are fixedly arranged on both sides of the lower clamp seat;

[0008] The adjustable upper clamping seat is arranged on the top of the lower clamping seat, and the adjustable upper clamping seat includes:

[0009] an upper clamping plate, which is arranged on the top of the lower clamping seat;

[0010] A lifting cylinder is fixedly installed on the top of the lower clamping seat, and the output end of the lifting cylinder is fixedly connected to the upper clamping plate;

[0011] A movable pressing plate, which is movably arranged on the inner bottom of the upper clamping plate;

[0012] The adjusting rod is used to adjust the height of the movable pressing plate.

[0013] Preferably, threaded columns are fixedly connected to the middle parts of both ends of the movable pressure plate, and the interior of the upper clamping plate is rotatably connected to a turbine, and the threaded columns are threadedly connected to the interior of the turbine.

[0014] Preferably, the adjusting rod is rotatably connected to the inside of the upper clamping plate, and a worm is fixedly sleeved on the outer surface of the adjusting rod, and the worm is engaged with the turbine.

[0015] Preferably, positioning shafts are movably inserted on both sides of the upper clamping plate, and the bottom ends of the positioning shafts are fixedly connected to the movable pressing plate.

[0016] Preferably, a rubber contact pad is fixedly installed on the output end of the lateral air pressure clamp, a cylinder connector is fixedly connected to the bottom of the lower clamp seat, and the lateral air pressure clamp and the lifting cylinder are both connected to the cylinder connector.

[0017] Preferably, a drag chain is installed at the bottom of the guide rail, an air pressure tube is installed inside the drag chain, and the air pressure tube is connected to the cylinder connector.

[0018] Preferably, the bottom of the guide rail is rotatably connected to a driving screw, and the bottom of the lower clamping seat is fixedly connected to a sliding connection block, and the sliding connection block is threadedly connected to the outer surface of the driving screw.

[0019] Preferably, both sides of the top of the guide rail are provided with sliding grooves, and the sliding connection block and the cylinder connecting head are both slidably connected inside the sliding grooves.

[0020] The utility model discloses a clamping tool for a vertical machining center, which has the following beneficial effects: the device rotates an adjusting rod, thereby causing the adjusting rod to drive a worm to rotate, and the worm and the turbine to mesh and transmit, so that the turbine rotates inside the upper clamping plate, thereby causing the threaded column to drive the movable pressure plate to move up and down, thereby adjusting the distance between the bottom of the movable pressure plate and the top of the lower clamping seat, so that when clamping the workpiece, it can be opened and closed quickly and effective clamping can be achieved for some workpieces with slightly extra high dimensions, and the overall adaptability is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1This is a schematic diagram of the overall top structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall bottom structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the outer surface structure of the clamping mechanism of the utility model;

[0025] Figure 4 This is a cross-sectional view of the internal structure of the adjustable upper clamping seat of the utility model.

[0026] In the figure: 1. Guide rail; 2. Clamping mechanism; 21. Lower clamp seat; 22. Lateral pneumatic clamp; 23. Rubber contact pad; 24. Adjustable upper clamp; 241. Upper clamp plate; 242. Lifting cylinder; 243. Movable pressure plate; 244. Positioning shaft; 245. Threaded column; 246. Turbine; 247. Adjusting rod; 248. Worm; 25. Sliding connecting block; 26. Cylinder connector; 3. Pneumatic duct; 4. Slide; 5. Drag chain; 6. Drive screw. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] The embodiment of the present application solves the problem that many pneumatic clamping tools adopt smaller sizes to meet the design requirements of quick opening and closing, which makes the opening and closing degree of the entire clamp unadjustable. When encountering some workpieces with slightly larger sizes, it cannot be used and the clamping tool needs to be replaced, which is very inconvenient.

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] The embodiment of the utility model discloses a clamping tool for a vertical machining center.

[0031] According to the attached Figure 1-4As shown, it includes a guide rail 1 and a clamping mechanism 2 slidingly set on the guide rail 1, the clamping mechanism 2 includes a lower clamping seat 21, a lateral pneumatic clamp 22, an adjustable upper clamping seat 24 and an adjustable upper clamping seat 24, the lower clamping seat 21 is slidingly set on the top of the guide rail 1; the lateral pneumatic clamp 22 is fixedly set on both sides of the lower clamping seat 21; the output end of the lateral pneumatic clamp 22 is fixedly installed with a rubber contact pad 23, the bottom of the lower clamping seat 21 is fixedly connected to a cylinder connector 26, and the lateral pneumatic clamp 22 is connected to the cylinder connector 26.

[0032] There are multiple groups of lateral air pressure clamps 22. By starting multiple lateral air pressure clamps 22 at the same time, their output ends drive the rubber contact pads 23 to move toward the middle and squeeze on both sides of the workpiece, so that some special-shaped workpieces can be clamped and positioned from the side.

[0033] The adjustable upper clamping seat 24 is arranged on the top of the lower clamping seat 21, and the adjustable upper clamping seat 24 includes an upper clamping plate 241, a lifting cylinder 242, a movable pressure plate 243 and an adjusting rod 247. The upper clamping plate 241 is arranged on the top of the lower clamping seat 21; the lifting cylinder 242 is fixedly installed on the top of the lower clamping seat 21, and the output end of the lifting cylinder 242 is fixedly connected to the upper clamping plate 241; the movable pressure plate 243 is movably arranged on the inner bottom of the upper clamping plate 241; the adjusting rod 247 is used to adjust the To adjust the height of the movable pressure plate 243, the middle part of both ends of the movable pressure plate 243 is fixedly connected with a threaded column 245, the interior of the upper clamping plate 241 is rotatably connected with a turbine 246, the threaded column 245 is threadedly connected to the inside of the turbine 246, the adjusting rod 247 is rotatably connected to the inside of the upper clamping plate 241, and the outer surface of the adjusting rod 247 is fixedly sleeved with a worm 248, the worm 248 is engaged with the turbine 246, and the lifting cylinder 242 is connected to the cylinder connector 26.

[0034] By rotating the adjusting rod 247, the adjusting rod 247 drives the worm 248 to rotate, and the worm 248 engages with the turbine 246 to transmit the rotation, so that the turbine 246 rotates inside the upper clamping plate 241, so that the threaded column 245 drives the movable pressure plate 243 to move up and down, thereby adjusting the distance between the bottom of the movable pressure plate 243 and the top of the lower clamping seat 21. In this way, when clamping the workpiece, it can be opened and closed quickly, and some workpieces with slightly extra high dimensions can also be effectively clamped, and the overall adaptability is higher.

[0035] Positioning shafts 244 are movably connected to both sides of the upper clamping plate 241 , and the bottom ends of the positioning shafts 244 are fixedly connected to the movable pressing plate 243 , thereby ensuring that the movable pressing plate 243 does not deflect when sliding up and down.

[0036] A drag chain 5 is installed at the bottom of the guide slide rail 1, and an air pressure tube 3 is installed inside the drag chain 5. The air pressure tube 3 is connected to the cylinder connector 26 to protect the air pressure tube 3. At the same time, the air pressure tube 3 is connected to the external driving cylinder to control the extension and retraction of the lateral air pressure clamp 22 and the lifting cylinder 242.

[0037] The bottom of the guide rail 1 is rotatably connected to the driving screw 6, and the bottom of the lower clamping seat 21 is fixedly connected to the sliding connection block 25. The sliding connection block 25 is threadedly connected to the outer surface of the driving screw 6 and is connected to the driving screw 6 through an external rotating cylinder. By controlling the rotation of the driving screw 6, the sliding connection block 25 drives the entire clamping mechanism 2 to slide along the guide rail 1.

[0038] Slide grooves 4 are provided on both sides of the top of the guide rail 1 , and the sliding connection block 25 and the cylinder connection head 26 are both slidably connected inside the slide grooves 4 to perform sliding guidance.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A clamping fixture for a vertical machining center, comprising a guide rail (1) and a clamping mechanism (2) slidably arranged on the guide rail (1), characterized in that: The clamping mechanism (2) comprises: A lower clamping seat (21) is slidably arranged on the top of the guide rail (1); Lateral pneumatic clamps (22) fixedly disposed on both sides of the lower clamp seat (21); An adjustable upper clamping seat (24) is arranged on the top of the lower clamping seat (21), and the adjustable upper clamping seat (24) includes; An upper clamping plate (241) is arranged on top of the lower clamping seat (21); A lifting cylinder (242) is fixedly mounted on the top of the lower clamping seat (21), and an output end of the lifting cylinder (242) is fixedly connected to the upper clamping plate (241); A movable pressing plate (243) is movably arranged on the inner bottom of the upper clamping plate (241); An adjusting rod (247) is used to adjust the height of the movable pressing plate (243).

2. The clamping fixture for a vertical machining center according to claim 1, characterized in that: The middle parts of both ends of the movable pressing plate (243) are fixedly connected with threaded columns (245), the interior of the upper clamping plate (241) is rotatably connected with a turbine (246), and the threaded column (245) is threadedly connected to the interior of the turbine (246).

3. The clamping fixture for a vertical machining center according to claim 2, characterized in that: The adjusting rod (247) is rotatably connected to the interior of the upper clamping plate (241), and a worm (248) is fixedly sleeved on the outer surface of the adjusting rod (247), and the worm (248) is meshed with the turbine (246).

4. The clamping fixture for a vertical machining center according to claim 3, characterized in that: Positioning shafts (244) are movably connected to both sides of the upper clamping plate (241), and the bottom ends of the positioning shafts (244) are fixedly connected to the movable pressing plate (243).

5. The clamping fixture for a vertical machining center according to claim 1, characterized in that: The output end of the lateral air pressure clamp (22) is fixedly mounted with a rubber contact pad (23), the bottom of the lower clamp seat (21) is fixedly connected with a cylinder connector (26), and the lateral air pressure clamp (22) and the lifting cylinder (242) are both connected to the cylinder connector (26).

6. The clamping fixture for a vertical machining center according to claim 5, characterized in that: A drag chain (5) is installed at the bottom of the guide rail (1), and an air pressure conduit (3) is installed inside the drag chain (5). The air pressure conduit (3) is connected to the cylinder connector (26).

7. The clamping fixture for a vertical machining center according to claim 6, characterized in that: The bottom of the guide rail (1) is rotatably connected to a driving screw (6), and the bottom of the lower clamping seat (21) is fixedly connected to a sliding connection block (25), and the sliding connection block (25) is threadedly connected to the outer surface of the driving screw (6).

8. The clamping fixture for a vertical machining center according to claim 7, characterized in that: Slide grooves (4) are provided on both sides of the top of the guide slide rail (1), and the sliding connection block (25) and the cylinder connection head (26) are both slidably connected inside the slide grooves (4).

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