A main shaft and reel cone sleeve processing tool

Abstract

The utility model discloses a main shaft and reel cone sleeve processing frock, including base, the base upper end surface fixed mounting has fixed positioning seat and connecting frame, the connecting frame inside rotation has the screw rod, the connecting frame outer wall fixed mounting has with the screw rod connection's stepping motor, the screw rod outer wall screw rotation installs the moving block, the connecting frame inside fixed mounting has the limit rod, the limit rod slidingly penetrates the moving block, the moving block upper end surface is fixedly connected with movable positioning seat through the support mechanism. The utility model discloses through setting screw rod, moving block and movable positioning seat etc. component, stepping motor drives screw rod rotation, under the limiting effect of limit rod, moving block can drive movable positioning seat steady and accurate movement, can flexibly adjust the distance between movable positioning seat and fixed positioning seat to adapt to the main shaft and reel cone sleeve processing demand of different length specifications, effectively improves frock's versatility.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a machining fixture for spindles and tapered sleeves. Background Technology

[0002] In the field of mechanical manufacturing, spindles and tapered sleeves are common transmission components, and their machining accuracy directly affects the operational stability and transmission efficiency of the equipment.

[0003] When machining spindles and tapered sleeves, specialized tooling is required for positioning and clamping to ensure that the workpiece does not shift during machining and to guarantee machining accuracy. Existing machining tooling has some shortcomings. On the one hand, the position adjustment of the positioning mechanism is not convenient or precise enough, making it difficult to adapt to the machining needs of spindles and tapered sleeves of different lengths and specifications, resulting in poor versatility. On the other hand, the clamping effect of the clamping mechanism is not ideal, and the workpiece may loosen during machining, affecting machining accuracy. Moreover, the height adjustment of the clamping mechanism and the replacement of clamping components are not convenient enough, causing many inconveniences to the operation and lacking practicality. Therefore, it is necessary to redesign a machining tooling for spindles and tapered sleeves to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a machining fixture for spindles and drum tapered sleeves.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A machining fixture for a spindle and a tapered sleeve includes a base. A fixed positioning seat and a connecting frame are fixedly mounted on the upper surface of the base. A screw is rotatably mounted inside the connecting frame. A stepper motor connected to the screw is fixedly mounted on the outer wall of the connecting frame. A movable block is threadedly mounted on the outer wall of the screw. A limit rod is fixedly mounted inside the connecting frame and slides through the movable block. A movable positioning seat is fixedly connected to the upper surface of the movable block via a support mechanism. Both the fixed positioning seat and the movable positioning seat have V-shaped grooves on their upper surfaces. Wear-resistant alloy blocks are fixedly installed on the inner walls of each base. Mounting frames are fixedly installed on the upper surface of each base via support frames. Connecting sleeves are fixedly connected inside the mounting frames via pressing mechanisms. Connecting blocks are slidably installed inside the connecting sleeves. Arc-shaped pressing plates are fixedly connected to the bottom walls of the connecting blocks. Anti-slip pads are fixedly installed on the inner walls of the arc-shaped pressing plates. Fixing pins are slidably installed through the outer walls of the connecting sleeves. Insertion holes that mate with the fixing pins are opened on the outer walls of the connecting blocks. A lever is fixedly installed on the outer walls of the fixing pins. The inner walls of the levers are connected to the connecting sleeves via fixing mechanisms.

[0007] Preferably, the support mechanism includes two support rods fixedly installed on the upper surface of the movable block, and the ends of the two support rods are fixedly connected to the bottom wall of the movable positioning seat.

[0008] Preferably, the pressing mechanism includes a servo hydraulic cylinder fixedly installed inside the mounting frame, and the upper end face of the support frame has a telescopic opening that cooperates with the telescopic end of the servo hydraulic cylinder. The telescopic end of the servo hydraulic cylinder is fixedly connected to the upper end face of the connecting sleeve.

[0009] Preferably, the fixing mechanism includes a fixing spring installed on the outer wall of the fixing pin, and the two ends of the fixing spring are elastically connected to the outer wall of the connecting sleeve and the inner wall of the lever, respectively.

[0010] Preferably, a guide rod is fixedly installed on the bottom wall of the support frame, a guide plate is slidably installed on the outer wall of the guide rod, and the end of the guide plate is fixedly connected to the outer wall of the connecting sleeve.

[0011] Preferably, a controller is fixedly installed on the outer wall of the fixed positioning seat, and the controller is electrically connected to the stepper motor and the servo hydraulic cylinder.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting components such as screw, moving block and movable positioning seat, the stepper motor drives the screw to rotate. Under the limiting action of the limit rod, the moving block can drive the movable positioning seat to move smoothly and accurately. The distance between the movable positioning seat and the fixed positioning seat can be flexibly adjusted to adapt to the machining needs of spindles and tapered sleeves of different lengths, effectively improving the versatility of the tooling.

[0014] 2. By setting up components such as servo hydraulic cylinders, connecting blocks, and fixing pins, the servo hydraulic cylinders provide stable driving force, driving the arc-shaped lower pressure plate to move up and down, realizing the rapid clamping and loosening of workpieces. The clamping force is adjustable, and the anti-slip pads improve reliability. The toggle block can be used to quickly replace the matching parts, and the fixed spring ensures stability and enhances practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a machining fixture for a spindle and a tapered sleeve proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0017] Figure 3 This is a side view of the machining fixture for a spindle and a tapered sleeve proposed in this utility model.

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Base, 2. Fixed positioning seat, 3. Connecting frame, 4. Screw, 5. Stepper motor, 6. Limit rod, 7. Moving block, 8. Support rod, 9. Movable positioning seat, 10. Wear-resistant alloy block, 11. Support frame, 12. Mounting frame, 13. Servo hydraulic cylinder, 14. Connecting sleeve, 15. Connecting block, 16. Arc-shaped lower pressure plate, 17. Anti-slip pad, 18. Fixing pin, 19. Toggle block, 20. Fixing spring, 21. Guide rod, 22. Guide plate, 23. Controller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A machining fixture for a spindle and a tapered sleeve includes a base 1. A fixed positioning seat 2 and a connecting frame 3 are fixedly installed on the upper surface of the base 1. A screw 4 is rotatably installed inside the connecting frame 3. A stepper motor 5 connected to the screw 4 is fixedly installed on the outer wall of the connecting frame 3. A moving block 7 is rotatably installed on the outer wall of the screw 4. A limit rod 6 is fixedly installed inside the connecting frame 3 and slides through the moving block 7. A movable positioning seat 9 is fixedly connected to the upper surface of the moving block 7 through a support mechanism. Both the fixed positioning seat 2 and the movable positioning seat 9 have V-shaped grooves on their upper surfaces. Wear-resistant materials are fixedly installed on the inner walls of both V-grooves. Alloy block 10 and base 1 are both fixedly mounted with mounting frames 12 by support frames 11. The mounting frame 12 is fixedly connected to the connecting sleeve 14 by a pressing mechanism. The connecting sleeve 14 is slidably mounted with a connecting block 15. The bottom wall of the connecting block 15 is fixedly connected with an arc-shaped pressing plate 16. The inner wall of the arc-shaped pressing plate 16 is fixedly mounted with an anti-slip pad 17. The outer wall of the connecting sleeve 14 is slidably mounted with a fixing pin 18. The outer wall of the connecting block 15 has a hole that mates with the fixing pin 18. The outer wall of the fixing pin 18 is fixedly mounted with a lever 19. The inner wall of the lever 19 is connected to the connecting sleeve 14 by a fixing mechanism.

[0023] Furthermore, the anti-slip pad 17 is made of rubber with fine diamond-shaped patterns on its surface. This pattern design increases the friction with the workpiece surface, preventing slippage when the arc-shaped lower pressure plate 16 presses down to fix the workpiece, ensuring that the workpiece will not shift during processing and improving processing accuracy.

[0024] The support mechanism includes two support rods 8 fixedly installed on the upper surface of the movable block 7, and the ends of the two support rods 8 are fixedly connected to the bottom wall of the movable positioning seat 9.

[0025] Furthermore, the two support rods 8 are made of high-strength carbon steel, and the distance between them is two-thirds of the width of the movable positioning seat 9. This structural arrangement allows the force on the movable positioning seat 9 to be evenly transmitted to the moving block 7, ensuring the stability of the movable positioning seat 9 when moving and supporting the workpiece, and avoiding shaking.

[0026] The pressing mechanism includes a servo hydraulic cylinder 13 fixedly installed inside the mounting frame 12. The upper end face of the support frame 11 has a telescopic opening that cooperates with the telescopic end of the servo hydraulic cylinder 13. The telescopic end of the servo hydraulic cylinder 13 is fixedly connected to the upper end face of the connecting sleeve 14.

[0027] Furthermore, the maximum thrust of the servo hydraulic cylinder 13 is 50-80kN, and its extension and retraction speed can be precisely adjusted by the controller 23, ranging from 5-20mm / s. It can provide appropriate downward pressure and downward speed according to the material and processing requirements of different workpieces, ensuring that the workpieces are firmly fixed without causing damage.

[0028] The fixing mechanism includes a fixing spring 20 installed on the outer wall of the fixing pin 18. The two ends of the fixing spring 20 are elastically connected to the outer wall of the connecting sleeve 14 and the inner wall of the lever block 19, respectively.

[0029] Furthermore, the elastic coefficient of the fixing spring 20 is 15-25 N / mm. When the toggle block 19 pulls the fixing pin 18 out of the socket, the fixing spring 20 is stretched. After the toggle block 19 is released, under the elastic force of the fixing spring 20, the fixing pin 18 can quickly return to its original position and be inserted into the socket, ensuring the reliability of the connection between the connecting block 15 and the connecting sleeve 14.

[0030] A guide rod 21 is fixedly installed on the bottom wall of the support frame 11, and a guide plate 22 is slidably installed on the outer wall of the guide rod 21. The end of the guide plate 22 is fixedly connected to the outer wall of the connecting sleeve 14.

[0031] Furthermore, when the servo hydraulic cylinder 13 drives the connecting sleeve 14 to move up and down, the guide plate 22 can slide smoothly along the guide rod 21, playing a good guiding role and preventing the connecting sleeve 14 from deviating.

[0032] A controller 23 is fixedly installed on the outer wall of the fixed positioning seat 2. The controller 23 is electrically connected to the stepper motor 5 and the servo hydraulic cylinder 13.

[0033] Furthermore, the controller 23 adopts a PLC programmable controller, and its panel is equipped with a display screen and operation buttons. The operator can set parameters such as the rotation angle of the stepper motor 5 and the downward pressure and extension speed of the servo hydraulic cylinder 13 through the operation buttons. The display screen can display these parameters and the operating status of the equipment in real time, which is convenient for the operator to monitor and operate.

[0034] In use, this invention first starts the stepper motor 5 according to the length of the spindle or tapered sleeve to be processed, via controller 23. The stepper motor 5 drives the screw 4 to rotate. Since the moving block 7 is threadedly connected to the screw 4 and limited by the limiting rod 6, the moving block 7 will move along the axial direction of the screw 4. This, in turn, drives the movable positioning seat 9 to move via the support rod 8. After adjusting the distance between the movable positioning seat 9 and the fixed positioning seat 2 to a suitable position, the stepper motor 5 is turned off, and the workpiece to be processed is placed in the V-groove of the fixed positioning seat 2 and the movable positioning seat 9. The wear-resistant alloy block 10 in the V-groove can protect the workpiece and reduce wear. Then, the servo hydraulic cylinder 13 is started by the controller 23. The telescopic end of the servo hydraulic cylinder 13 extends and drives the connecting sleeve 14 to move downward. The connecting sleeve 14 moves downward steadily under the guidance of the guide rod 21 and the guide plate 22, which in turn drives the connecting block 15 and the arc-shaped lower pressure plate 16 to move downward. When the anti-slip pad 17 on the inner wall of the arc-shaped lower pressure plate 16 is in close contact with the outer wall of the workpiece and clamps the workpiece, the servo hydraulic cylinder 13 is closed, and the workpiece can be processed.

[0035] When it is necessary to replace the arc-shaped lower pressure plate 16 with a different specification, move the lever 19. The lever 19 drives the fixing pin 18 to move outward, and the fixing spring 20 is stretched. After the fixing pin 18 is pulled out from the insertion hole on the outer wall of the connecting block 15, the connecting block 15 can be taken out from the connecting sleeve 14. Replace with a suitable connecting block 15 and arc-shaped lower pressure plate 16. Then release the lever 19. Under the elastic action of the fixing spring 20, the fixing pin 18 is inserted into the insertion hole on the outer wall of the new connecting block 15, completing the replacement of the arc-shaped lower pressure plate 16. After the processing is completed, the controller 23 controls the extension end of the servo hydraulic cylinder 13 to retract, driving the arc-shaped lower pressure plate 16 to move upward, releasing the workpiece, and the processed workpiece can be taken out from the V-groove.

[0036] 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 machining fixture for a spindle and a tapered sleeve, comprising a base (1), characterized in that, A fixed positioning seat (2) and a connecting frame (3) are fixedly installed on the upper surface of the base (1). A screw (4) is rotatably installed inside the connecting frame (3). A stepper motor (5) connected to the screw (4) is fixedly installed on the outer wall of the connecting frame (3). A moving block (7) is rotatably installed on the outer wall of the screw (4). A limit rod (6) is fixedly installed inside the connecting frame (3). The limit rod (6) slides through the moving block (7). A movable positioning seat (9) is fixedly connected to the upper surface of the moving block (7) through a support mechanism. V-shaped grooves are opened on the upper surfaces of both the fixed positioning seat (2) and the movable positioning seat (9). Wear-resistant alloy blocks (10) are fixedly installed on the inner walls of both V-shaped grooves. (1) An installation frame (12) is fixedly installed on the upper end face through a support frame (11). A connecting sleeve (14) is fixedly connected inside the installation frame (12) through a pressing mechanism. A connecting block (15) is slidably installed inside the connecting sleeve (14). An arc-shaped pressing plate (16) is fixedly connected to the bottom wall of the connecting block (15). An anti-slip pad (17) is fixedly installed on the inner wall of the arc-shaped pressing plate (16). A fixing pin (18) is slidably installed through the outer wall of the connecting sleeve (14). An insertion hole that mates with the fixing pin (18) is opened on the outer wall of the connecting block (15). A lever (19) is fixedly installed on the outer wall of the fixing pin (18). The inner wall of the lever (19) is connected to the connecting sleeve (14) through a fixing mechanism.

2. The machining fixture for a spindle and a tapered sleeve according to claim 1, characterized in that, The support mechanism includes two support rods (8) fixedly installed on the upper surface of the movable block (7), and the ends of the two support rods (8) are fixedly connected to the bottom wall of the movable positioning seat (9).

3. The machining fixture for a spindle and a tapered sleeve according to claim 2, characterized in that, The pressing mechanism includes a servo hydraulic cylinder (13) fixedly installed inside the mounting frame (12). The upper end face of the support frame (11) is provided with a telescopic opening that cooperates with the telescopic end of the servo hydraulic cylinder (13). The telescopic end of the servo hydraulic cylinder (13) is fixedly connected to the upper end face of the connecting sleeve (14).

4. The machining fixture for a spindle and a tapered sleeve according to claim 3, characterized in that, The fixing mechanism includes a fixing spring (20) installed on the outer wall of the fixing pin (18), and the two ends of the fixing spring (20) are elastically connected to the outer wall of the connecting sleeve (14) and the inner wall of the lever (19), respectively.

5. The machining fixture for a spindle and a tapered sleeve according to claim 4, characterized in that, A guide rod (21) is fixedly installed on the bottom wall of the support frame (11), and a guide plate (22) is slidably installed on the outer wall of the guide rod (21). The end of the guide plate (22) is fixedly connected to the outer wall of the connecting sleeve (14).

6. The machining fixture for a spindle and a tapered sleeve according to claim 5, characterized in that, A controller (23) is fixedly installed on the outer wall of the fixed positioning seat (2), and the controller (23) is electrically connected to the stepper motor (5) and the servo hydraulic cylinder (13).

Images