Numerical control machining positioning device for Roots blower blank rotor

Abstract

The utility model relates to the technical field of machining and positioning, in particular to a Roots blower blank rotor numerical control machining and positioning device which comprises a working table, two rotors are in lap joint with the top of the working table, two lower fixing devices are fixedly connected to the two sides of the working table respectively, a top fixing device is fixedly connected to the top of the working table, and the lower fixing devices are fixedly connected to the top of the working table. The top of each rotor is clamped to the bottom of a top fixing device, the lower portion of each rotor is clamped into a lower fixing device, each lower fixing device comprises a middle positioning rod and two side positioning rods, and the two sides of each middle positioning rod are fixedly connected with external connection blocks. The utility model has the effects that the lower half part of the rotor workpiece to be processed can be quickly and accurately positioned, and the top of the rotor workpiece is fixed through the top fixing device, so that the rotor workpiece can be quickly locked on the workbench, the working efficiency is effectively improved, and the production rate of defective and waste workpieces is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machining positioning, in particular to a numerical control machining positioning device for a Roots blower blank rotor. Background Art

[0002] During CNC machining of Roots blower blank rotors, since the CNC machine tool does not have a corresponding positioning device, workers need to manually adjust the position of the Roots blower blank rotor to ensure machining accuracy. This not only increases the workload of the workers, but also easily leads to inaccurate adjustments and low work efficiency. Utility Model Content

[0003] In order to improve the positioning accuracy of the blank rotor and increase the working efficiency, the utility model provides a Roots blower blank rotor numerical control machining positioning device.

[0004] The Roots blower blank rotor numerical control machining positioning device provided by the utility model adopts the following technical solutions:

[0005] The invention discloses a CNC machining and positioning device for a Roots blower blank rotor, comprising a workbench, wherein two rotors are overlapped on the top of the workbench, two lower fixing devices are fixedly connected to both sides of the workbench, a top fixing device is fixedly connected to the top of the workbench, the tops of the two rotors are clamped to the bottoms of the top fixing devices, and the lower parts of the two rotors are clamped to the insides of the lower fixing devices.

[0006] By adopting the above technical solution, the lower fixing device can quickly fix the lower parts of the two rotors, and the top fixing device can quickly fix the top parts of the two rotors. The two rotors are quickly fixed on the workbench, and the CNC machine tool processes the rotors. By adjusting the bolts of the lower fixing device and the nuts of the top fixing device, the rotors can be accurately positioned, which is beneficial to reduce the physical exertion of workers and speed up work efficiency.

[0007] Preferably, the two lower fixing devices each include a central positioning rod and two side positioning rods, and external blocks are fixedly connected to both sides of the two central positioning rods. Threaded grooves are provided inside the four external blocks, inside the two central positioning rods, and inside the four side positioning rods.

[0008] Preferably, the interior of each thread groove is threadedly connected with a bolt, wherein the interiors of the thread grooves of the four external blocks are connected to the interiors of the corresponding thread grooves of the middle positioning rod, and the nut end of each bolt is clamped on the outer surface of the corresponding rotor.

[0009] By adopting the above technical solution, the bolt and the thread groove are movably connected. When the rotor needs to be replaced, the nut end of the bolt can be turned in the direction close to the external block and the side positioning rod. When the rotor needs to be locked, the nut end of the bolt can be turned in the direction close to the rotor. The rotor is clamped by the nut end. Relatively speaking, the area of ​​the nut end is larger, and the area in contact with the rotor is larger, which is conducive to enhancing the fixing force and is convenient for fixing rotors of other specifications.

[0010] Preferably, one side of the two middle positioning rods and the four side positioning rods are fixedly connected to the outer surface of the workbench, the two lower fixing devices are symmetrically distributed on both sides of the workbench, and every two side positioning rods are symmetrically distributed on both sides of the corresponding middle positioning rod.

[0011] By adopting the above technical solution, it is convenient to clamp two rotor workpieces at the same time, thereby improving processing efficiency.

[0012] Preferably, the top fixing device includes two pressure plates, two top nuts and two screw rods, the bottoms of the two screw rods are fixedly connected to the top of the workbench, the interiors of the two pressure plates are overlapped with the outer surfaces of the corresponding screw rods, the interiors of the two top nuts are threadedly connected to the outer surfaces of the corresponding screw rods, the bottoms of the two top nuts are clamped on the tops of the pressure plates, and the bottoms of the two pressure plates are overlapped with the tops of the two rotors.

[0013] By adopting the above technical solution, the bottom of the rotor is a workbench and the top is a pressure plate. When the top nut is turned down and locked, the pressure plate naturally presses the two rotors. When the top nut is not locked, the two pressure plates do not press the rotors, which is convenient for placing the rotor before processing or taking out the rotor after processing.

[0014] Preferably, the two rotors are respectively located on both sides of the two screws, and the two rotors are respectively located between the corresponding external blocks and the side positioning rods.

[0015] By adopting the above technical solution, when the workbench is processed, the two rotors can be clamped, positioned and clamped at one time through the pressure plate, the middle positioning rod and the side positioning rod, thereby improving the positioning efficiency and the positioning accuracy. When the CNC machine tool processes the rotors, two rotors can be processed at the same time, which is conducive to speeding up the work efficiency.

[0016] In summary, the utility model has the following beneficial technical effects:

[0017] 1. The device is provided with a lower fixing device, and the bolt and the thread groove are movably connected. When the rotor needs to be replaced, the nut end of the bolt can be turned in the direction close to the external block and the side positioning rod. When the rotor needs to be locked, the nut end of the bolt can be turned in the direction close to the rotor. The rotor is clamped by the nut end. Relatively speaking, the area of ​​the nut end is larger, and the area in contact with the rotor is larger, which is conducive to enhancing the fixing force. At the same time, it is convenient to position rotors of other specifications, and the lower half of the rotor workpiece to be processed can be quickly and accurately positioned, and then the top of the rotor workpiece is fixed by the top fixing device, so as to quickly complete the locking of the rotor workpiece on the workbench, effectively improve work efficiency, and reduce the generation rate of defective and waste workpieces;

[0018] 2. The device is provided with a top fixing device. The bottom of the rotor is a workbench and the top is a pressure plate. When the top nut is turned down and locked, the pressure plate naturally presses the two rotors. When the top nut is not locked, the two pressure plates do not press the rotors, which is convenient for placing the rotor before processing or taking out the rotor after processing, which is beneficial to reduce the physical exertion of workers and speed up work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a Roots blower blank rotor numerical control machining positioning device of the utility model when viewed from above;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model of the NC machining positioning device for the blank rotor of the Roots blower when viewed from above;

[0021] Figure 3 It is a front view of the utility model of the numerical control machining positioning device for the blank rotor of the Roots blower;

[0022] Figure 4 The utility model is a side view of a numerical control machining positioning device for a Roots blower blank rotor.

[0023] Description of reference numerals:

[0024] 1. Workbench; 2. Rotor; 3. Middle positioning rod; 4. Side positioning rod;

[0025] 5. External block; 6. Bolt; 7. Pressure plate; 8. Top nut; 9. Screw. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-4 The utility model is described in further detail.

[0027] The utility model embodiment discloses a numerical control machining positioning device for a Roots blower blank rotor.

[0028] Reference Figure 1 , 2, including a workbench 1, which is a processing table of a CNC machine tool. When the rotor 2 workpiece is positioned, the CNC machine tool can be started to process the outer surface and inner wall of the rotor 2. Two rotors 2 are overlapped on the top of the workbench 1, and two lower fixing devices are fixedly connected to both sides of the workbench 1. A top fixing device is fixedly connected to the top of the workbench. The tops of the two rotors 2 are clamped to the bottoms of the top fixing devices, and the lower parts of the two rotors 2 are clamped to the insides of the two lower fixing devices. The top fixing device presses the top of the rotor 2 to avoid the rotor 2 from moving up and down when the front and rear ends are subjected to uneven force during processing by the CNC machine tool. The two lower fixing devices respectively press the left and right sides of the front and rear ends of the rotor 2 to avoid the rotor 2 from moving left and right when the front and rear ends are subjected to uneven force during processing by the CNC machine tool. The workbench 1, the top fixing device and the lower fixing device cooperate to position the rotor 2 workpiece up, down, left and right.

[0029] Reference Figure 1 , 2 3. The two lower fixing devices each include a central positioning rod 3 and two side positioning rods 4. External blocks 5 are fixedly connected to both sides of the two central positioning rods 3. Thread grooves are provided inside the four external blocks 5, inside the two central positioning rods 3 and inside the four side positioning rods 4. Bolts 6 are threadedly connected to the thread grooves to form a movable connection, which facilitates the removal of the bolts 6.

[0030] Reference Figure 1 , 2 , 3, 4, the interior of each thread groove is threadedly connected with a bolt 6, wherein the interiors of the thread grooves of the four external blocks 5 are connected to the interiors of the thread grooves of the corresponding middle positioning rods 3, and the nut end of each bolt 6 is clamped on the outer surface of the corresponding rotor 2. The worker places the rotor 2 between the external block 5 and the side positioning rod 4, and turns the bolts 6 of the external block 5 and the side positioning rod 4 so that the nut end of the bolt 6 is turned in the direction close to the rotor until the nut end is clamped on the outer surface of the rotor 2, so as to lock the left and right sides of the rotor 2, thereby completing the precise positioning of the rotor. Relatively speaking, the nut end of the bolt 6 has a larger area, and the contact area with the rotor 2 is larger, which is conducive to enhancing the force for fixing the rotor 2, and is convenient for positioning rotors 2 of other specifications.

[0031] Reference Figure 3 One side of the two middle positioning rods 3 and the four side positioning rods 4 are fixedly connected to the outer surface of the workbench 1, and the two lower fixing devices are symmetrically distributed on both sides of the workbench 1. Every two side positioning rods 4 are symmetrically distributed on both sides of the corresponding middle positioning rods 3, which is convenient for placing the two rotors 2 on the top of the workbench 1 at the same time, so as to process the two rotors 2 at the same time and improve work efficiency.

[0032] Reference Figure 1 , 23. The top fixing device includes two pressure plates 7, two top nuts 8 and two screw rods 9. The bottoms of the two screw rods 9 are fixedly connected to the top of the workbench 1. The insides of the two pressure plates 7 are overlapped with the outer surfaces of the corresponding screw rods 9. The insides of the two top nuts 8 are threadedly connected to the outer surfaces of the corresponding screw rods 9. The bottoms of the two top nuts 8 are clamped on the tops of the pressure plates 7. The pressure plates 7 pass through the screw rods 9 and adjust the angle so that the bottoms of the pressure plates 7 cover the tops of the two rotors 2. Then, the top nuts 8 are screwed to move downward until the top nuts 8 lock the pressure plates 7, and the pressure plates 7 clamp the tops of the rotors 2.

[0033] Reference Figure 1 , 3 The bottoms of the two pressure plates 7 are overlapped with the tops of the two rotors 2, and the two tops respectively press the front and rear ends of the tops of the rotors 2 to prevent the front and rear ends of the rotors 2 from moving up and down when the force is uneven.

[0034] Reference Figure 1 , 3 The two rotors 2 are respectively located on both sides of the two screw rods 9, that is, the two screw rods 9 are located between the two rotors 2, which is convenient for the two tops to respectively press the front and rear ends of the top of the rotor 2 to avoid the bottom of the rotor 2 from warping, so that the bottom of the rotor 2 is closely attached to the top of the workbench 1 throughout the CNC machine tool processing process. The two rotors 2 are respectively located between the corresponding external blocks 5 and the side positioning rods 4, that is, the order from left to right is the side positioning rod 4, the rotor 2, the middle positioning rod 3, the rotor 2 and the side positioning rod 4, which is convenient for the bolts 6 on the side positioning rod 4 and the middle positioning rod 3 to clamp the left and right sides of the rotor 2.

[0035] The implementation principle of the NC machining positioning device for the blank rotor of the Roots blower in the embodiment of the utility model is as follows:

[0036] 1. When the rotor 2 to be processed needs to be locked, the worker places the rotor 2 on both sides of the two screw rods 9, between the external block 5 and the side positioning rod 4, and screws the bolts 6 of the external block 5 and the side positioning rod 4, so that the nut end of the bolt 6 is screwed in the direction close to the rotor until the nut end is clamped on the outer surface of the rotor 2, and passes the pressing plate 7 through the screw rod 9, and adjusts the angle so that the bottom of the pressing plate 7 covers the top of the two rotors 2, and then screws the top nut 8 to move downward until the top nut 8 locks the pressing plate 7, and the bottom of the pressing plate 7 clamps the rotor 2;

[0037] 2. When the rotor 2 needs to be replaced, the worker screws the nut end of the bolt 6 toward the external block 5 and the side positioning rod 4, and moves the top nut 8 toward the top of the original rotor 2, so that the processed rotor 2 can be moved out of the workbench 1.

[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Roots blower blank rotor CNC machining positioning device, characterized by: The invention comprises a workbench (1), wherein two rotors (2) are overlapped on the top of the workbench (1), two lower fixing devices are fixedly connected to both sides of the workbench (1), the top of the workbench (1) is fixedly connected to a top fixing device, the tops of the two rotors (2) are clamped to the bottoms of the top fixing devices, and the lower parts of the two rotors (2) are clamped to the insides of the two lower fixing devices.

2. The NC machining positioning device for Roots blower blank rotor according to claim 1 is characterized in that: The two lower fixing devices each comprise a central positioning rod (3) and two side positioning rods (4); external blocks (5) are fixedly connected to both sides of the two central positioning rods (3); and threaded grooves are provided inside the four external blocks (5), inside the two central positioning rods (3), and inside the four side positioning rods (4).

3. The NC machining positioning device for Roots blower blank rotor according to claim 2 is characterized in that: The interior of each thread groove is threadedly connected with a bolt (6), wherein the interiors of the thread grooves of the four external blocks (5) are connected to the interiors of the thread grooves of the corresponding middle positioning rods (3), and the nut end of each bolt (6) is clamped on the outer surface of the corresponding rotor (2).

4. The NC machining positioning device for Roots blower blank rotor according to claim 3 is characterized in that: One side of the two middle positioning rods (3) and the four side positioning rods (4) are fixedly connected to the outer surface of the workbench (1), the two lower fixing devices are symmetrically distributed on both sides of the workbench (1), and each two side positioning rods (4) are symmetrically distributed on both sides of the corresponding middle positioning rod (3).

5. The NC machining positioning device for Roots blower blank rotor according to claim 4 is characterized in that: The top fixing device comprises two pressing plates (7), two top nuts (8) and two screw rods (9); the bottoms of the two screw rods (9) are fixedly connected to the top of the workbench (1); the insides of the two pressing plates (7) are overlapped with the outer surfaces of the corresponding screw rods (9); the insides of the two top nuts (8) are threadedly connected to the outer surfaces of the corresponding screw rods (9); and the bottoms of the two top nuts (8) are clamped on the tops of the pressing plates (7).

6. The NC machining positioning device for Roots blower blank rotor according to claim 5 is characterized in that: The bottoms of the two pressing plates (7) are overlapped with the tops of the two rotors (2).

7. The NC machining positioning device for Roots blower blank rotor according to claim 6 is characterized in that: The two rotors (2) are respectively located on both sides of the two screw rods (9), and the two rotors (2) are respectively located between the corresponding external blocks (5) and the side positioning rods (4).

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