Adjustable Pressure Compression Floating Device

Abstract

The present invention belongs to the technical field of compacting floating devices, specifically an adjustable-pressure compacting floating device, which includes a motor and a speed reducer. A lead screw is connected and installed at the left end of the motor, and a speed reducer is fixedly installed at the right end of the motor. A ring body is nested on the outer wall of the lead screw, a floating block is screwed on the outer wall of the lead screw, and a nut is threadedly connected to the left side of the outer wall of the lead screw, and the nut slides left and right on the lead screw. After adjusting the position of the adjusting nut on the lead screw, the present invention adjusts the stroke pressure of the speed reducer and the air cylinder to keep the nut in the adjusted position. When the nut encounters a pressure value exceeding that in the speed reducer and the air cylinder, the stroke of the speed reducer and the air cylinder collapses, forming a floating and compacting follow-up for the nut, and protecting the lead screw adjustment mechanism, thereby achieving the purpose of compacting and floating. This is beneficial to avoiding damage to the mechanism caused by the inability to collapse when encountering a certain resistance value, resulting in the suspension of subsequent production, and is beneficial to adapting to various pressures.

Description

Technical Field

[0001] The present invention relates to the technical field of compacting floating devices, and specifically to an adjustable-pressure compacting floating device. Background Art

[0002] During the machining process, when a high-speed rotating machining component processes a workpiece, it causes the workpiece to be processed to vibrate. The initial stage of such vibration is imperceptible, and when the vibration is visible to the naked eye, the machining accuracy of the workpiece being processed has already decreased significantly. Continuous vibration may damage the fixed structure. Therefore, a compacting floating device is currently used for workpieces with high precision requirements.

[0003] Currently, there is an existing patent (Publication No.: CN202022510391.5) and a floating pressing device. This patent uses the sliding fit of a sliding cylinder and a guide sleeve to facilitate generating different extrusion forces on a spring, thereby facilitating the relative sliding adjustment of an adjusting ejector rod within a pressing cylinder to adjust the position, and further facilitating the adjustment of the position of a pressing piece, enabling the pressing piece to press and fix the workpiece with an appropriate force, and having relatively high reliability in use. Through multiple connecting bolts, it is convenient for the quick connection and disassembly between the guide sleeve and multiple connecting plates, thus facilitating the quick connection and disassembly between the guide sleeve and the mounting seat. Through multiple mounting bolts, it is convenient for the quick connection and disassembly between two guide half-cylinders, thus facilitating the quick connection and disassembly between the two guide half-cylinders and the sliding cylinder. Therefore, this floating pressing device is convenient for the maintenance or replacement of each component, and the maintenance cost after damage is relatively low, with high practicality. However, when this device encounters a certain resistance value, the nut cannot collapse, resulting in damage to the mechanism and further causing production to stop. There is no screw rod with adjustable pressure and it cannot adapt to various pressures.

[0004] Therefore, we propose an adjustable-pressure compacting floating device. After adjusting the position of the adjusting nut on the screw rod, by adjusting the stroke pressure of the reducer and the cylinder, the nut is maintained at the adjusted position. When the nut encounters a pressure value exceeding that within the reducer and the cylinder, the stroke of the reducer and the cylinder collapses, forming a floating pressing follow for the nut, and protecting the screw rod adjustment mechanism, thereby achieving the purpose of compacting and floating, which is beneficial to avoiding damage to the mechanism caused by the inability to collapse when encountering a certain resistance value and resulting in the subsequent production stop, and is beneficial to adapting to various pressures. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable-pressure compacting floating device to solve the problems in the above-mentioned background art that in the current compacting floating device, when encountering a certain resistance value, the nut cannot collapse, resulting in damage to the mechanism and further causing production to stop, and there is no screw rod with adjustable pressure and it cannot adapt to various pressures.

[0006] To achieve the above object, the present invention provides the following technical solution: an adjustable pressure pressing floating device, comprising a motor and a reducer, characterized in that: a lead screw is connected and installed at the left end of the motor, a reducer is fixedly installed at the right end of the motor, a ring body is nested on the outer wall of the lead screw, a floating block is screwed on the outer wall of the lead screw, a nut is threadedly connected to the left side of the outer wall of the lead screw, the nut slides left and right on the lead screw, and a pressing power component is installed below the motor and the reducer.

[0007] Preferably, the ring body is located between the floating block and the reducer, the number of the ring bodies is several groups, and the ring bodies are connected end to end.

[0008] Preferably, a rear frame is engaged with the right end of the reducer, protective wings are fixed to the front and rear sides of the left end of the rear frame, the positions of the protective wings correspond to the positions of the motor and the reducer, a hole body is fixed to the rear plate of the rear frame, the hole body is engaged and fixed corresponding to the reducer, and a top plate is fixed to the top of the rear frame.

[0009] Preferably, a front frame is fixedly installed at the left side of the bottom of the top plate, a through hole is formed in the left side of the plate body of the front frame, the floating block passes through the corresponding through hole, and the front frame and the top plate are slidably fixed through a connecting block.

[0010] Preferably, a cylinder is installed below the motor and the reducer, and the pneumatic rods at the left and right ends of the sliding of the cylinder are respectively connected corresponding to the motor and the reducer.

[0011] Preferably, the reducer drives the motor to move left and right, and the cylinder opens and closes synchronously with the left and right movement of the motor.

[0012] Preferably, the pneumatic rod on the right side of the cylinder passes through the rear frame, and the pneumatic rod on the right side of the cylinder moves synchronously with the reducer.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] For the adjustable pressure pressing floating device of the present invention, through the settings of the lead screw, nut, reducer and cylinder, after adjusting the position of the nut on the lead screw, by adjusting the stroke pressure of the reducer and the cylinder, the nut is kept at the adjusted position. When the nut encounters a pressure value exceeding that in the reducer and the cylinder, the strokes of the reducer and the cylinder are collapsed, forming a floating pressing follow for the nut, and protecting the lead screw adjustment mechanism, thereby achieving the purpose of pressing and floating, which is beneficial to avoiding damage to the mechanism caused by the inability to collapse when encountering a certain resistance value, resulting in the stop of subsequent production, and is beneficial to adapting to various pressures. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the adjustable pressure pressing floating device of the present invention;

[0016] Figure 2 Schematic diagram of the overall disassembled structure of the adjustable pressure pressing floating device of the present invention;

[0017] Figure 3 Schematic diagram of the front frame structure of the adjustable pressure pressing floating device of the present invention;

[0018] Figure 4 Schematic diagram of the rear frame structure of the adjustable pressure pressing floating device of the present invention;

[0019] Figure 5 Schematic diagram of the top frame structure of the adjustable pressure pressing floating device of the present invention.

[0020] In the figure: 1, nut; 2, lead screw; 3, floating block; 4, front frame; 5, top plate; 6, rear frame; 7, motor; 8, ring body; 9, connecting block; 10, reducer; 11, pneumatic rod; 12, cylinder. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] Embodiment:

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution: an adjustable pressure pressing floating device, including a motor 7 and a reducer 10. The left end of the motor 7 is connected and installed with a lead screw 2. The right end of the motor 7 is fixedly installed with a reducer 10. The outer wall of the lead screw 2 is nested with a ring body 8. A floating block 3 is screwed on the outer wall of the lead screw 2. A nut 1 is threadedly connected to the left side of the outer wall of the lead screw 2. The nut 1 slides left and right on the lead screw 2. A pressing power component is installed below the motor 7 and the reducer 10;

[0025] After adjusting the position of the adjusting nut 1 on the lead screw 2, by adjusting the stroke pressure of the reducer 10 and the cylinder 12, the nut 1 is maintained at the adjusted position. When the nut 1 encounters a pressure value exceeding that in the reducer 10 and the cylinder 12, the strokes of the reducer 10 and the cylinder 12 collapse, forming a floating pressing and following for the nut 1, and playing a role in protecting the adjusting mechanism of the lead screw 2, thereby achieving the purpose of tight pressing and floating, avoiding damage to the mechanism due to inability to collapse when encountering a certain resistance value, resulting in the suspension of subsequent production, adapting to various pressures, and the tight pressing power components include cylinders, oil cylinders and springs.

[0026] Wherein, the ring body 8 is located between the floating block 3 and the reducer 10, the number of the ring bodies 8 is several groups, and the ring bodies 8 are connected end to end;

[0027] The number of the ring bodies 8 needs to be adjusted according to the actual situation, and the ring bodies 8 need to be connected end to end and maintain their fixity. At the same time, multiple groups of ring bodies 8 are all located between the floating block 3 and the reducer 10, and attention needs to be paid to not affecting the fixed installation of the connecting block 9.

[0028] Wherein, a rear frame 6 is clamped at the right end of the reducer 10, protective wings are fixed on the front and rear sides of the left end of the rear frame 6, the positions of the protective wings correspond to the positions of the motor 7 and the reducer 10, a hole body is fixed on the rear plate of the rear frame 6, and the hole body is correspondingly clamped and fixed with the reducer 10, and a top plate 5 is fixed on the top of the rear frame 6;

[0029] The front protective wing and the rear protective wing are both provided with cavities. Through the cavities of the front protective wing and the rear protective wing, the floating block 3 and the ring body 8 can be adjusted, and at the same time, it is also convenient to repair the floating block 3 and the ring body 8.

[0030] Wherein, a front frame 4 is fixedly installed on the left side of the bottom of the top plate 5, a through hole is opened on the left side of the plate body of the front frame 4, and the floating block 3 correspondingly passes through the through hole, and the front frame 4 and the top plate 5 are slidably fixed through a connecting block 9;

[0031] The floating block 3 of the lead screw 2 is nested and passes through the through hole of the front frame 4 correspondingly, and a hole body is opened at the bottom right side of the front frame 4, and the air pressure rod 11 of the cylinder 12 is fixedly corresponding to the hole body. The front frame 4 moves along with the movement of the air pressure rod 11 of the cylinder 12, and the connecting block 9 slides and moves corresponding to the top plate 5 along with the movement of the front frame 4, that is, the connecting block 9 and the front frame 4 move synchronously.

[0032] Wherein, a cylinder 12 is installed below the motor 7 and the reducer 10, and the air pressure rods 11 at the left and right sliding ends of the cylinder 12 are respectively connected corresponding to the motor 7 and the reducer 10;

[0033] The pneumatic rods 11 at both ends of the cylinder 12 are respectively nested with the bottom of the right end of the front frame 4 and the bottom of the right end of the rear frame 6. The cylinder 12 is composed of a cylinder barrel, a cylinder head, a piston, a piston rod, a sealing device, a buffer device and an exhaust device. The cylinder 12 converts the pressure energy of the input liquid into the mechanical energy of the linear motion of the piston.

[0034] Among them, the reducer 10 drives the motor 7 to move left and right, and the cylinder 12 opens and closes synchronously with the left and right movement of the motor 7;

[0035] The reducer 10 is a pneumatic actuator that converts the pressure energy of compressed gas into mechanical energy through pneumatic transmission. Furthermore, the reducer 10 performs a reciprocating linear motion. The piston is the pressure-receiving part in the reducer 10, which can prevent the air from leaking between the left and right chambers of the piston. And a piston seal ring needs to be provided. The wear-resistant ring on the piston can improve the guiding property of the reducer 10, reduce the wear of the piston seal ring, and reduce the frictional resistance. When the hydraulic cylinder moves to the end of the stroke, it has a large kinetic energy. If no deceleration treatment is done, the piston of the hydraulic cylinder and the cylinder head will have a mechanical collision, generating impact and noise, which is destructive. To alleviate and prevent this harm from occurring, a deceleration device can be set in the hydraulic circuit or a buffer device can be set in the cylinder body. When facing the high-frequency floating of the nut 1, relying only on the buffer structure in the cylinder body will cause high-frequency friction and then the temperature to rise, which easily leads to the problem of jamming during the sliding process.

[0036] Among them, the pneumatic rod 11 on the right side of the cylinder 12 passes through the rear frame 6, and the pneumatic rod 11 on the right side of the cylinder 12 moves synchronously with the reducer 10;

[0037] Through the synchronous movement of the pneumatic rod 11 of the cylinder 12 with the reducer 10, a buffer structure is formed for the reducer 10. The principle of the reducer 10 is to increase the air pressure through the piston, and then the pneumatic transmission converts the pressure of the compressed air into mechanical energy to drive the mechanism to perform a linear reciprocating motion, or a swinging and rotating motion. The process is that compressed air is input into the rodless chamber, or the rod chamber exhausts air, or the pressure difference between the two chambers of the reducer 10 acts on the piston to form a force that pushes the piston to move, making the piston rod extend. When the rod chamber intakes air and the rodless chamber exhausts air, the piston rod retracts. If the rod chamber and the rodless chamber intake and exhaust air alternately, the piston can perform a reciprocating linear motion. This reducer 10 can adopt the method that only one side of the piston has compressed air entering. The working stroke of the reducer 10 is limited to one direction. The piston of the reducer 10 can return to its original position under the action of a spring, gravity or other external forces, or it can be adjusted according to the actual situation that there is air pressure on both sides of the piston in the reducer 10 to achieve the forward or backward movement. When compressed air alternately enters and exits both sides of the piston, the piston moves in two directions, and the moving speeds in both directions can be controlled by adjusting the air pressure.

[0038] Working principle: The device body is protected by the front frame 4 and the rear frame 6. After adjusting the position of the adjusting nut 1 on the lead screw 2, by adjusting the stroke pressure of the speed reducer 10 and the cylinder 12, the nut 1 is maintained at the adjusted position. When the nut 1 encounters a pressure value exceeding that in the speed reducer 10 and the cylinder 12, the strokes of the speed reducer 10 and the cylinder 12 collapse, forming a floating pressing follow for the nut 1 and protecting the adjusting mechanism of the lead screw 2, thereby achieving the purpose of floating pressing. The floating block 3 of the lead screw 2 is nested and passed through the through hole of the front frame 4, and a hole is provided at the bottom right of the front frame 4. The pneumatic rod 11 of the cylinder 12 is fixed corresponding to the hole. The front frame 4 moves with the movement of the pneumatic rod 11 of the cylinder 12, and the connecting block 9 slides correspondingly along the top plate 5 with the movement of the front frame 4, that is, the connecting block 9 and the front frame 4 move synchronously, avoiding damage to the mechanism caused by the inability to collapse when encountering a certain resistance value, resulting in the stop of subsequent production, and adapting to various pressures.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Adjustable pressure pressing floating device, comprising a motor (7) and a reducer (10), characterized in that: The left end of the motor (7) is connected and installed with a lead screw (2). The right end of the motor (7) is fixedly installed with a reducer (10). A ring body (8) is nested on the outer wall of the lead screw (2). A floating block (3) is screwed on the outer wall of the lead screw (2). A nut (1) is threadedly connected to the left side of the outer wall of the lead screw (2). The nut (1) slides left and right on the lead screw (2). The right end of the reducer (10) is engaged with a rear frame (6). Wings are fixed on the front and rear sides of the left end of the rear frame (6). The positions of the wings correspond to the positions of the motor (7) and the reducer (10). A hole body is fixed on the rear plate of the rear frame (6). The hole body is engaged and fixed corresponding to the reducer (10). A top plate (5) is fixed on the top of the rear frame (6). A cylinder (12) is installed below the motor (7) and the reducer (10). The pneumatic rods (11) at the left and right ends of the sliding of the cylinder (12) are respectively connected corresponding to the motor (7) and the reducer (10). A front frame (4) is fixedly installed at the bottom left of the top plate (5). A through hole is opened on the left side of the plate body of the front frame (4). The floating block (3) passes through the corresponding through hole. The front frame (4) and the top plate (5) are slidably fixed through an adapter block (9). The reducer (10) drives the motor (7) to move left and right, and the cylinder (12) opens and closes synchronously as the motor (7) moves left and right. The reducer (10) is a pneumatic actuator that converts the pressure energy of compressed gas into mechanical energy through pneumatic transmission. The reducer (10) makes a reciprocating linear motion.

2. The adjustable pressure pressing floating device according to claim 1, wherein: The ring body (8) is located between the floating block (3) and the reducer (10). The number of the ring bodies (8) is several groups, and the ring bodies (8) are connected end to end.

3. The adjustable pressure pressing floating device according to claim 1, wherein: The pneumatic rod (11) on the right side of the cylinder (12) passes through the rear frame (6). The pneumatic rod (11) on the right side of the cylinder (12) moves synchronously with the reducer (10).

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