Constant-pressure action system for grinding head of plate polishing machine
By designing the lifting platform, grinding head motor and elastic telescopic mechanism in the sheet polishing machine, combined with the automatic control of the cylinder and PLC system, the problem of unreasonable grinding head action and pressure design is solved, and the abrasive loss and low failure rate are achieved. Responsive action and high-quality polishing effect.
Patent Information
- Application Number
- CN202420240963.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-01
AI Technical Summary
During the polishing process of the sheet, the action and grinding pressure of the grinding head are unreasonable, resulting in large abrasive loss, high failure rate, insensitive movements, and poor polishing quality.
Design a constant pressure action system for grinding head including lifting platform, grinding head motor, swing arm, elastic telescopic mechanism and cylinder. The PLC system automatically controls the cylinder and motor to realize the constant pressure polishing action of grinding head, and uses pneumatic principles and belts. Transmission, simplifies control components, improves movement sensitivity and stability.
It achieves the effects of small abrasive loss, low failure rate, sensitive operation and high polishing quality, and improves the polishing operation efficiency and quality stability.
Smart Images
Figure CN222244160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of plate polishing. Background Art
[0002] Polishing is a processing method that uses mechanical, chemical or electrochemical means to remove oxides and impurities on the surface of a workpiece and make the surface roughness of the workpiece meet certain requirements to obtain a smooth and flat surface. The plate polishing machine described in the present invention is mostly used for surface rust removal and polishing of steel plates. During the operation, the motor drives the grinding head and the grinding tool to rotate and polish the workpiece, and the walking system controls the longitudinal and lateral feeding movement of the grinding head to achieve uniform polishing of the entire plate.
[0003] During polishing, the action of the grinding head (including lifting and pressing) and the grinding pressure not only affect the working efficiency, but also directly determine the polishing quality. If the design is unreasonable, it often leads to problems such as large abrasive loss, high failure rate, insensitive action, and poor polishing quality. Utility Model Content
[0004] The technical problem to be solved by the utility model is: how to provide a constant pressure action system for a plate polishing machine grinding head with low abrasive loss, low failure rate, sensitive action and high polishing quality.
[0005] The technical solution adopted by the utility model is: a constant pressure action system of a grinding head of a plate polishing machine, comprising a lifting device 8 with a lifting platform 2, a grinding head motor 1 installed on a grinding head motor seat 11, a swing arm 4 rotatably connected to the lifting platform 2 at one end through a swing shaft 3, a polishing head 7 installed at the other end of the swing arm 4, an elastic telescopic mechanism 6 connecting the lifting platform 2 and the swing arm 4 near the swing shaft 3, a cylinder 5 connecting the lifting platform 2 and the swing arm 4 near the polishing head 7, and a PLC system, one end of the elastic telescopic mechanism 6 is fixedly connected to the lifting platform 2, the other end of the elastic telescopic mechanism 6 is rotatably connected to the swing arm 4, the cylinder seat of the cylinder 5 is rotatably connected to the lifting platform 2, the telescopic arm of the cylinder 5 is rotatably connected to the swing arm 4, the grinding head motor seat 11 is fixedly connected to the swing shaft 3, and the grinding head motor 1 is connected to the polishing head 7 through a belt drive.
[0006] The lifting device 8 includes a lifting device bracket 85, a lifting motor 81, a reducer 82, a rotating stud 83, and a lifting bolt 84. The upper end of the rotating stud 83 is fixedly connected to the output head of the reducer 82, and the input end of the reducer 82 is fixedly connected to the output head of the lifting motor 81. The lifting motor 81 and the reducer 82 are fixed to the upper part of the lifting device bracket 85. The lifting bolt 84 is meshed and connected with the rotating stud 83. The rotating stud 83 is fixedly connected to the lifting platform 2. Both ends of the rotating stud 83 are fixed to the lifting device bracket 85 through bearings.
[0007] The lifting platform 2 is an L-shaped structure including a vertical plate and a support platform. The vertical of the lifting platform 2 is fixedly connected with the lifting bolt 84, and the swing shaft 3 is installed on the swing shaft 3 through a bearing.
[0008] The elastic telescopic mechanism 6 includes a first end 61, a second end 62, an inner spring 65, an outer spring 65, a boss 67 directly opposite the first end 61 and the second end 62, a positioning column 63 installed on the boss 67 on the first end 61, and a positioning sleeve 64 installed on the boss of the second end 62 and matched with the positioning column 63. The inner spring 65 is sleeved on the outside of the positioning column 63 and the positioning sleeve 64, the outer spring 65 is sleeved on the outside of the boss 67, and the positioning column 63 is partially inside the positioning sleeve 64.
[0009] The beneficial effects of the utility model are as follows: the utility model is realized by cylinder control, has a simple pneumatic principle, fewer control components, a low failure rate, reliable and sensitive action, realizes automatic control of the grinding head action during the polishing operation, has high operation efficiency, and has stable polishing quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 It is a schematic diagram of the structure of the lifting device of the utility model;
[0012] Figure 3 It is a schematic diagram of the elastic telescopic mechanism of the utility model;
[0013] Among them, 1. grinding head motor, 2. lifting platform, 3. swing shaft, 4. swing arm, 5. cylinder, 6. elastic telescopic mechanism, 7. polishing head, 8. lifting device, 11. grinding head motor seat, 61. first end, 62. second end, 63. positioning column, 64. positioning sleeve, 65. inner spring, 66. outer spring, 67. boss, 81. lifting motor, 82. reducer, 83. rotating stud, 84. lifting bolt, 85. lifting device bracket. DETAILED DESCRIPTION
[0014] like Figure 1-3 As shown, a constant pressure action system of a grinding head of a plate polishing machine includes a lifting device 8 with a lifting platform 2, a grinding head motor 1 installed on a grinding head motor seat 11, a swing arm 4 with one end rotatably connected to the lifting platform 2 through a swing shaft 3, a polishing head 7 installed at the other end of the swing arm 4, an elastic telescopic mechanism 6 connecting the lifting platform 2 and the swing arm 4 near the swing shaft 3, a cylinder 5 connecting the lifting platform 2 and the swing arm 4 near the polishing head 7, and a PLC system.
[0015] The lifting device 8 includes a lifting device bracket 85, a lifting motor 81, a reducer 82, a rotating stud 83, and a lifting bolt 84. The upper end of the rotating stud 83 is fixedly connected to the output head of the reducer 82, and the input end of the reducer 82 is fixedly connected to the output head of the lifting motor 81. The lifting motor 81 and the reducer 82 are fixed to the upper part of the lifting device bracket 85. The lifting bolt 84 is meshed and connected with the rotating stud 83. The rotating stud 83 is fixedly connected to the lifting platform 2. Both ends of the rotating stud 83 are fixed to the lifting device bracket 85 through bearings.
[0016] The elastic telescopic mechanism 6 comprises a first end 61, a second end 62, an inner spring 65, an outer spring 65, a boss 67 opposite to the first end 61 and the second end 62, a positioning column 63 mounted on the boss 67 on the first end 61, a positioning sleeve 64 mounted on the boss of the second end 62 and matched with the positioning column 63, the inner spring 65 is sleeved on the outside of the positioning column 63 and the positioning sleeve 64, the outer spring 65 is sleeved on the outside of the boss 67, and the positioning column 63 is partially in the positioning sleeve 64. The first end 61 of the elastic telescopic mechanism 6 is fixedly connected to the lifting platform 2, and the second end 62 of the elastic telescopic mechanism 6 is rotatably connected to the swing arm 4.
[0017] The lifting platform 2 is an L-shaped structure including a vertical plate and a support platform. The vertical of the lifting platform 2 is fixedly connected to the lifting bolt 84, and the swing shaft 3 is installed on the swing shaft 3 through a bearing. The cylinder seat of the cylinder 5 is rotatably connected to the lifting platform 2, and the telescopic arm of the cylinder 5 is rotatably connected to the swing arm 4.
[0018] The grinding head motor seat 11 is fixedly connected to the swing shaft 3, and the grinding head motor 1 is connected to the polishing head 7 through a belt transmission.
[0019] The specific working process is as follows.
[0020] 1. Place the plate to be polished on the working platform, which is located below the lifting platform 2.
[0021] The dynamic lifting mechanism adjusts the entire grinding head to a suitable position.
[0022] 2. Press down the grinding head
[0023] The PLC controls the deflation of the cylinder, the cylinder piston is released, and the grinding head completes the downward pressing action under the action of its own weight and the elastic telescopic mechanism 6.
[0024] 3. Grinding head constant pressure polishing Input the best polishing parameters into the PLC controller. The PLC controller obtains the data of the proportional valve (control cylinder) and the motor ammeter (control the current of the grinding head motor 1) through the data acquisition module, and then outputs the control signal to control the proportional valve gas flow through the potentiometer to keep the grinding head in the best pressure floating constant pressure polishing. In this example, the rated power of the grinding head motor is 15kw, corresponding to the current range of 0-30A. The motor current is around 20A, and the polishing quality and efficiency are the best. The PLC controller can automatically adjust the grinding head pressure to keep the motor current at 20A.
[0025] 4. Lifting the grinding head
[0026] The PLC controls the air supply to the cylinder. Since the gas pressure is greater than the proportional valve gas, the gas will enter the cylinder through the shuttle valve, pushing the cylinder piston to pull the grinding head to lift the knife.
[0027] 5. Control of grinding head pressing down and knife lifting
[0028] During normal operation, the grinding head is pressed down and the knife is lifted up automatically by the position switch, so that the grinding head automatically presses down and polishes when it reaches the plate, and automatically lifts the knife when it leaves the steel plate. The position switch is not drawn in the drawings of the utility model because it is not the invention of the utility model, but we know that the position switch (which can be multiple proximity switches) needs to be installed.
Claims
1. A plate polishing machine grinding head constant pressure action system, characterized by: The invention comprises a lifting device (8) with a lifting platform (2), a grinding head motor (1) mounted on a grinding head motor seat (11), a swing arm (4) having one end rotatably connected to the lifting platform (2) via a swing shaft (3), a polishing head (7) mounted on the other end of the swing arm (4), an elastic telescopic mechanism (6) connecting the lifting platform (2) and the swing arm (4) near the swing shaft (3), a cylinder (5) connecting the lifting platform (2) and the swing arm (4) near the polishing head (7), and a PLC system, wherein one end of the elastic telescopic mechanism (6) is fixedly connected to the lifting platform (2), the other end of the elastic telescopic mechanism (6) is rotatably connected to the swing arm (4), the cylinder seat of the cylinder (5) is rotatably connected to the lifting platform (2), the telescopic arm of the cylinder (5) is rotatably connected to the swing arm (4), the grinding head motor seat (11) is fixedly connected to the swing shaft (3), and the grinding head motor (1) is connected to the polishing head (7) via a belt drive.
2. A plate polishing machine grinding head constant pressure action system according to claim 1, characterized in that: The lifting device (8) comprises a lifting device bracket (85), a lifting motor (81), a reducer (82), a rotating stud (83), and a lifting bolt (84); the upper end of the rotating stud (83) is fixedly connected to the output head of the reducer (82); the input end of the reducer (82) is fixedly connected to the output head of the lifting motor (81); the lifting motor (81) and the reducer (82) are fixed to the upper part of the lifting device bracket (85); the lifting bolt (84) is meshedly connected to the rotating stud (83); the rotating stud (83) is fixedly connected to the lifting platform (2); and both ends of the rotating stud (83) are fixed to the lifting device bracket (85) via bearings.
3. A plate polishing machine grinding head constant pressure action system according to claim 2, characterized in that: The lifting platform (2) is an L-shaped structure comprising a vertical plate and a support platform. The vertical part of the lifting platform (2) is fixedly connected with a lifting bolt (84), and the swing shaft (3) is mounted on the swing shaft (3) via a bearing.
4. The plate polishing machine grinding head constant pressure action system according to claim 1, characterized in that: The elastic telescopic mechanism (6) comprises a first end (61), a second end (62), an inner spring (65), an outer spring (66), a boss (67) directly opposite the first end (61) and the second end (62), a positioning column (63) mounted on the boss (67) on the first end (61), a positioning sleeve (64) mounted on the boss of the second end (62) and matched with the positioning column (63), the inner spring (65) being sleeved on the outside of the positioning column (63) and the positioning sleeve (64), the outer spring (66) being sleeved on the outside of the boss (67), and the positioning column (63) being partially inside the positioning sleeve (64).