A polishing apparatus and method of using the same

Abstract

The application provides a polishing device and a use method thereof, and relates to the technical field of metal plate processing. The device comprises a polishing assembly, a suction structure, a suction channel, a connecting channel, a gas guide column, a connecting frame, a drive assembly and a vacuum pump. The polishing assembly comprises a flat plate polishing piece. The suction structure comprises the suction channel, the connecting channel and the gas guide column. The suction channel is located in the polishing assembly. One end of the connecting channel is connected with the suction channel. One end of the gas guide column is connected with the connecting channel. The connecting frame comprises a support plate and a connecting pipe. One end of the connecting pipe is fixedly connected with the support plate, and the other end is connected with the gas guide column. The drive assembly comprises a horizontal movement air cylinder, an intermediate shaft, a rotary joint, a transmission shaft and a variable frequency motor. One end of the transmission shaft is connected with one end of the connecting pipe. The variable frequency motor is connected with the transmission shaft. The vacuum pump is connected with the intermediate shaft. The method is the use method of the device. When a flat plate-shaped metal plate is processed, the polishing device can polish the left surface and the right surface of the metal plate without turning over the metal plate, which is beneficial to improve the processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of metal sheet processing technology, and in particular to a grinding and polishing device and its method of use. Background Technology

[0002] Metal sheets come in a variety of shapes, such as round, rectangular, and curved plates. Various shapes of metal sheets are used in machining, such as aluminum alloy sheets, one of the most widely used non-ferrous metal structural materials in industry, which are extensively used in aviation, aerospace, and automotive fields.

[0003] In the process of processing metal sheets, in order to remove particles or burrs generated on their surface, it is usually necessary to grind and polish the surface to meet the requirements.

[0004] Patent application CN202310187670.8 discloses a metal plate surface grinding and polishing device and method. It uses a suction cup to fix the metal plate and can grind and polish the upper surface and sides of the metal plate. However, to complete the grinding and polishing process of the metal plate, it is necessary to flip the metal plate to grind and polish the entire area of ​​the lower surface of the metal plate (relative to the upper surface), so the efficiency needs to be improved. Summary of the Invention

[0005] In view of the above situation, the present invention provides a grinding and polishing device and its usage method, aiming to solve the technical problem that existing metal plate grinding and polishing devices and methods require flipping the metal plate over to grind and polish the entire area of ​​the lower surface of the metal plate in order to complete the grinding and polishing process, which requires improving efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] In a first aspect, the present invention provides a grinding and polishing apparatus, which mainly includes: two plate grinding mechanisms symmetrically arranged with respect to a vertical plane, for grinding the left or right surface of a metal plate vertically placed between them, the plate grinding mechanism comprising:

[0008] The grinding assembly includes a connecting plate, a flat grinding component, and an adsorption structure. The flat grinding component is fixed to one side of the connecting plate. The adsorption structure includes an adsorption channel, a connecting channel, and an air guide column. The adsorption channel is located inside the grinding assembly, with one end serving as the flat adsorption port, which is located on one side of the flat grinding component. The connecting channel is located inside the grinding assembly, with one end connected to the adsorption channel. The air guide column is hollow, with one end fixed to the side of the connecting plate and connected to the other end of the connecting channel. The other end of the air guide column is closed, and air holes are provided on the side wall of the air guide column.

[0009] The connecting frame includes a support plate and a connecting pipe; one end of the connecting pipe is fixedly connected to the support plate, and the other end is connected to the air guide column; the air hole is located inside the connecting pipe;

[0010] The drive assembly includes a transverse cylinder, an intermediate shaft, a rotary joint, a drive shaft, and a variable frequency motor connected in sequence; the intermediate shaft is tubular; the drive shaft is square tubular, with one end of the drive shaft connected to one end of a connecting pipe; the rotary joint connects the drive shaft and the intermediate shaft; the output shaft of the variable frequency motor is connected to the drive shaft to rotate the drive shaft.

[0011] The vacuum pump is connected to the intermediate shaft via a telescopic hose.

[0012] In some embodiments of the present invention, the connecting pipe is rotatably connected to the air guide column;

[0013] The connecting frame also includes a support bar, one end of which is fixed to the support plate and the other end is detachably connected to the side of the connecting plate.

[0014] In some embodiments of the present invention, the drive assembly further includes a transmission sleeve that is axially slidably sleeved with the drive shaft, and the transmission sleeve has transmission teeth.

[0015] The output shaft of the variable frequency motor is equipped with a drive gear that meshes with the transmission gear.

[0016] In some embodiments of the present invention, the grinding assembly further includes an arc plate grinding component, and the flat plate grinding component and the arc plate grinding component are respectively fixed on opposite sides of the connecting plate.

[0017] The other end of the adsorption channel is the arc plate adsorption port, which is located on one side of the arc plate grinding part;

[0018] One end of the connecting channel is connected to the middle of the adsorption channel.

[0019] In some embodiments of the present invention, the polishing assembly further includes:

[0020] The movable plug slides within the adsorption channel;

[0021] Flat plate support; and

[0022] Arc plate abutment;

[0023] in:

[0024] The flat plate stop and the arc plate stop are fixed on opposite sides of the movable plug, respectively;

[0025] The movable plug, the flat plate abutment, and the arc plate abutment are coaxial, and the sum of their axial lengths is greater than the length of the adsorption channel.

[0026] In some embodiments of the present invention, the polishing assembly further includes:

[0027] The longitudinal cavity is located within the grinding assembly;

[0028] Sliding fittings that slide with the longitudinal cavity;

[0029] An extension rod, the lower end of which is connected to the top of the sliding fitting, and the upper part which can abut against one side of the movable plug to limit the movement of the movable plug along one side; and

[0030] The transverse cavity is located within the grinding assembly. One end of the transverse cavity is connected to the longitudinal cavity and is located above the sliding part, while the other end is connected to the connecting channel.

[0031] In some embodiments of the present invention, the grinding and polishing apparatus further includes an injection pipe for spraying polishing fluid.

[0032] In some embodiments of the present invention, the grinding and polishing apparatus further includes:

[0033] A side grinding rotating shaft is arranged longitudinally;

[0034] The side grinding head is fixed to the top of the side grinding rotating shaft and located between the two grinding components;

[0035] The side mill drive motor has an extension shaft connected to the upper end of its output shaft. The extension shaft has a polygonal cross-section, and the lower end of the side mill rotating shaft has a matching insertion slot for the extension shaft.

[0036] The lifting assembly includes a lifting plate, a lifting bracket, a lifting cylinder, and a pressure sensor; the lifting plate is penetrated by a side grinding rotating shaft; the lifting bracket is fixed to the bottom of the lifting plate, and an extension shaft penetrates the lifting bracket and is rotatable relative to the lifting bracket; the movable end of the lifting cylinder is connected to the lifting plate; the upper side of the pressure sensor is in direct or indirect contact with the lower end of the side grinding rotating shaft, and the lower side is fixedly connected to the lifting bracket.

[0037] In some embodiments of the present invention, the grinding and polishing apparatus further includes a collar;

[0038] The collar is fitted onto the extension shaft and located between the lower end of the side grinding rotating shaft and the upper side of the pressure sensor. The collar can rotate relative to the extension shaft, and a connecting lug is fixed on the side wall of the collar.

[0039] The lifting bracket has a sliding groove that matches the connecting ear, and the connecting ear and the sliding groove are slidably connected longitudinally.

[0040] Secondly, the present invention provides a method for using the above-mentioned grinding and polishing apparatus, which mainly includes the following steps:

[0041] Step 1: Secure the metal plate to the grinding assembly located on the left side;

[0042] Step 2: Move the two grinding components so that the grinding component on the right side contacts the right side of the metal plate;

[0043] Step 3: Rotate the polishing component on the left to polish the right surface of the metal plate;

[0044] Step 4: After polishing the right surface of the metal plate, first stop the rotation of the polishing component on the left and turn off the vacuum pump on the left. Then, use the vacuum pump on the right to generate negative pressure to adsorb and fix the metal plate onto the polishing component on the right. Then, rotate the polishing component on the right to polish the left surface of the metal plate through the polishing component on the left.

[0045] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0046] 1. When processing flat metal plates, the grinding and polishing device can grind and polish the left and right surfaces of the metal plate without flipping it over, which helps to improve processing efficiency.

[0047] 2. When the grinding and polishing device grinds and polishes the left and right surfaces of the metal plate, there are no dead corners, which further improves the processing efficiency.

[0048] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the grinding and polishing device.

[0051] Figure 2 A schematic diagram of the structure during the processing of a flat metal plate for a grinding component;

[0052] Figure 3 A schematic diagram of the structure when processing an arc-shaped metal plate for a grinding component;

[0053] Figure 4 This is a schematic diagram of the adsorption channel, gas guide column, and connecting tube.

[0054] Figure 5 for Figure 2 A magnified view of a portion of position A in the middle;

[0055] Figure 6 for Figure 5 A magnified view of a portion of position B in the middle;

[0056] Figure 7 for Figure 3 A magnified view of the area at position C in the middle;

[0057] Figure 8 for Figure 1 A magnified view of the area at position D in the middle;

[0058] Figure 9 for Figure 1 A magnified view of the area at position E in the middle.

[0059] icon:

[0060] 1-Surface grinding mechanism; 11-Grinding assembly; 111-Connecting plate; 112-Flat plate grinding component; 113-Arc plate grinding component; 114-Adsorption channel; 115-Connecting channel; 116-Air guide column; 117-Flat plate adsorption port; 118-Arc plate adsorption port; 119-Air hole; 121-Modible plug; 122-Flat plate stop rod; 123-Arc plate stop rod; 125-Longitudinal cavity; 126-Stop block; 127-Sliding component; 128-Extension rod; 129-Buffer component; 131-Horizontal cavity.

[0061] 14-Connecting frame, 141-Support plate, 142-Support bar, 143-Connecting pipe,

[0062] 15-Drive assembly, 151-Transverse cylinder, 152-Intermediate shaft, 153-Rotary joint, 154-Drive shaft, 155-Drive sleeve, 156-Variable frequency motor, 157-Drive gear, 158-Drive gear, 17-Vacuum pump, 171-Telescopic hose

[0063] 21-Injection tubing,

[0064] 3-Side grinding mechanism; 31-Side grinding rotating shaft; 311-Liquid baffle; 312-Insertion groove; 32-Side grinding head; 33-Side grinding drive motor; 331-Extension shaft; 34-Lifting assembly; 341-Lifting plate; 342-Guide rod; 343-Lifting bracket; 344-Lifting cylinder; 345-Pressure sensor; 346-Collar; 347-Connecting ear; 348-Slide groove.

[0065] 41-Grinding chamber, 411-Enclosure panel, 412-Leak-proof sleeve, 413-Drain pipe, 42-Dust exhaust pipe, 43-Vacuum cleaner, 431-Inlet, 432-Necked passage, 433-Guiding chamber, 434-Outlet, 435-Air inlet pipe, 44-Sewage pipe

[0066] 51- Flat metal plate, 61- Curved metal plate. Detailed Implementation

[0067] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention.

[0068] In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0069] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0070] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0071] Firstly, please refer to Figures 1-9 This embodiment provides a grinding and polishing device, which mainly includes a plate surface grinding mechanism 1, a polishing liquid injection mechanism, a plate side grinding mechanism 3, and a dust suction and liquid drainage mechanism.

[0072] Two plate grinding mechanisms 1 are symmetrically arranged with respect to a vertical plane, and a metal plate is placed vertically between the two plate grinding mechanisms 1, such as... Figure 1 As shown, the two plate grinding mechanisms 1 are located on the left and right sides of the metal plate, respectively. The plate grinding mechanism 1 is used to grind the left and right surfaces of the metal plate. The plate grinding mechanism 1 can mainly include a grinding component 11, a connecting frame 14, a driving component 15 and a vacuum pump 17.

[0073] The grinding assembly 11 is used to grind metal plates. The grinding assembly 11 mainly includes a connecting plate 111, a flat grinding component 112 and an arc grinding component 113. The flat grinding component 112 and the arc grinding component 113 are respectively fixed on opposite sides of the connecting plate 111.

[0074] The flat grinding tool 112 is used to grind the left or right surface of a flat metal plate 51 (including a circular or rectangular flat metal plate), and one side of the flat grinding tool 112 can completely cover the left or right surface of the metal plate.

[0075] The arc-shaped grinding component 113 is used to grind the left or right surface of the arc-shaped metal plate 61. The shape of the arc-shaped grinding component 113 is adapted to the shape of the arc-shaped metal plate 61. One side of the arc-shaped grinding component 113 can contact the left or right surface of the arc-shaped metal plate 61, and one side of the arc-shaped grinding component 113 can completely cover the left or right surface of the metal plate.

[0076] It should be noted that since there are two grinding mechanisms 1, there are also two grinding components 11, and the only difference between the two grinding components 11 is that the shape of the arc plate grinding part 113 is slightly different.

[0077] The polishing assembly 11 may also include an adsorption structure, which may mainly include an adsorption channel 114, a connecting channel 115, and an air guide column 116.

[0078] The adsorption channel 114 is located inside the grinding assembly 11. One end of the adsorption channel 114 is a flat plate adsorption port 117 and the other end is an arc plate adsorption port 118. The flat plate adsorption port 117 is located on one side of the flat plate grinding component 112 and is used to adsorb and fix the flat plate metal plate 51. The arc plate adsorption port 118 is located on one side of the arc plate grinding component 113 and is used to adsorb and fix the arc-shaped plate metal plate 61.

[0079] The connecting channel 115 is located inside the polishing assembly 11, and one end of the connecting channel 115 is connected to the middle of the adsorption channel 114.

[0080] Reference Figures 1-4 The air guide column 116 is hollow. One end of the air guide column 116 is fixed to the side of the connecting plate 111 and connected to the other end of the connecting channel 115. The other end of the air guide column 116 is closed. An air hole 119 is opened on the side wall of the air guide column 116 and is indirectly connected to the vacuum pump 17.

[0081] Rotating the connecting plate 111 allows the grinding assembly 11 to rotate clockwise or counterclockwise. Figure 1 As shown in the clockwise and counterclockwise directions, the method of rotating the connecting plate 111 will be described below, so that the flat grinding part 112 faces the flat metal plate 51, or the curved grinding part 113 faces the curved metal plate 61, thereby facilitating the grinding and polishing of metal plates of different shapes; for example, in Figure 2 The flat grinding component 112 of the grinding assembly 11 faces the flat metal plate 51. First, the flat metal plate 51 is replaced with an arc-shaped metal plate 61, and then... Figure 2After the polishing assembly 11 shown rotates 180 degrees clockwise or counterclockwise around the axis of the air guide column 116, the polishing assembly 11 will be in a position where... Figure 3 The state shown is in Figure 3 The flat grinding component 112 of the grinding assembly 11 is away from the curved plate-shaped metal plate 61, and the curved plate grinding component 113 is towards the curved plate-shaped metal plate 61.

[0082] The grinding assembly 11 may also include a movable plug 121, a flat plate abutment 122, and an arc plate abutment 123; the movable plug 121 is slidably fitted within the adsorption channel 114, and the flat plate abutment 122 and the arc plate abutment 123 are respectively fixed on opposite sides of the movable plug 121. The movable plug 121, the flat plate abutment 122, and the arc plate abutment 123 are coaxial, and the sum of their axial lengths is greater than the length of the adsorption channel 114. Figure 2 In the state shown, the adsorption channel 114 has a lateral dimension.

[0083] One end of the flat plate abutment 122 can protrude from or retract into the flat plate grinding component 112. After one end of the flat plate abutment 122 retracts into the flat plate grinding component 112, the flat plate suction port 117 communicates with the connecting channel 115 to fix the flat metal plate 51 to the side of the flat plate grinding component 112 of the grinding assembly 11. One end of the arc plate abutment 123 can protrude from or retract into the arc plate grinding component 113. After one end of the arc plate abutment 123 retracts into the arc plate grinding component 113, the arc plate suction port 118 communicates with the connecting channel 115 to fix the arc plate metal plate 61 to the side of the arc plate grinding component 113 of the grinding assembly 11.

[0084] It should be noted that at the same time, the metal plate to be processed is only attracted and fixed by one grinding component 11, while the other grinding component 11 is used to grind and polish the metal plate.

[0085] The polishing assembly 11 may also include limiting structures, with two limiting structures symmetrically arranged on opposite sides of the connecting channel 115 (i.e., Figure 5 In the state shown, the left and right sides of the connecting channel 115 are connected. The limiting structure can mainly include a longitudinal cavity 125, a stop block 126, a sliding part 127, an extension rod 128, a buffer part 129 and a transverse cavity 131.

[0086] The longitudinal cavity 125 is arranged longitudinally and located within the grinding assembly 11.

[0087] The stop block 126 is fixed on the inner wall of the middle part of the longitudinal cavity 125.

[0088] The sliding part 127 slides with the longitudinal cavity 125 and is located below the stop block 126.

[0089] The lower end of the extension rod 128 is connected to the top center of the sliding part 127, and the upper part can abut against one side of the movable plug 121 to limit the movement of the movable plug 121 along one side.

[0090] The buffer 129 is attached to the top of the sliding part 127.

[0091] The transverse cavity 131 is arranged in a transverse direction and is located inside the grinding assembly 11; one end of the transverse cavity 131 is connected to the longitudinal cavity 125 and is located above the stop block 126, and the other end is connected to the connecting channel 115.

[0092] The working principle of the above-mentioned limiting structure is as follows: Figures 1 to 7 After the movable plug 121 connects the flat plate adsorption port 117 with the connecting channel 115, the vacuum pump 17 is then started, causing the sliding part 127 and the extension rod 128 to move upward under the action of negative pressure (both the longitudinal cavity 125 and the transverse cavity 131 are connected to the connecting channel 115). The upper part of the extension rod 128 abuts against one side of the movable plug 121 to restrict the movement of the movable plug 121 along one side. The advantage of this setting is that it can avoid the movable plug 121 driving the flat plate abutment rod 122 or the arc plate abutment rod 123 to move under the action of negative pressure and act on the metal plate that is adsorbed and fixed by the adsorption structure, thus affecting the firmness of the metal plate being adsorbed and fixed. In other words, the setting of the limiting structure can ensure the adsorption and fixing effect of the adsorption structure on the metal plate.

[0093] The connecting frame 14 mainly includes a support plate 141, a support bar 142, and a connecting pipe 143;

[0094] One end of the support bar 142 is fixed to the support plate 141, and the other end is connected to the side of the connecting plate 111 by bolts; there are four support bars 142, and the four support bars 142 are distributed in pairs on the front and rear sides of the connecting plate 111. Figure 1 (The front and back directions are shown).

[0095] One end of the connecting pipe 143 is fixedly connected to the support plate 141, and the other end is rotatably connected to the air guide column 116; the air hole 119 of the air guide column 116 is located inside the connecting pipe 143.

[0096] After removing the bolts connecting the support bar 142 and the connecting plate 111, the grinding assembly 11 can be rotated 180 degrees clockwise or counterclockwise to facilitate fixing and processing metal plates of different shapes.

[0097] The drive assembly 15 is used to move the grinding assembly 11 laterally and to rotate the grinding assembly 11. The drive assembly 15 mainly includes a transverse cylinder 151, an intermediate shaft 152, a rotary joint 153, a transmission shaft 154, a transmission sleeve 155, and a variable frequency motor 156.

[0098] The transverse cylinder 151 is located on the side of the support plate 141 away from the grinding assembly 11. The movable end of the transverse cylinder 151, the intermediate shaft 152, the rotary joint 153, the transmission shaft 154 and the support plate 141 are connected in sequence.

[0099] The intermediate shaft 152 is tubular.

[0100] The drive shaft 154 is square tubular, and one end of the drive shaft 154 is connected to one end of the connecting pipe 143.

[0101] The rotary joint 153 can connect the drive shaft 154 and the intermediate shaft 152, and enable the drive shaft 154 and the intermediate shaft 152 to rotate relative to each other.

[0102] The transmission sleeve 155 is axially slidably connected to the transmission shaft 154, and the transmission sleeve 155 has transmission teeth 157.

[0103] A drive gear 158 is mounted on the output shaft of the variable frequency motor 156, and the drive gear 158 meshes with the transmission gear 157. The variable frequency motor 156 adopts variable frequency control, and the variable frequency motor 156 can make the grinding assembly 11 rotate at low speed or high speed.

[0104] The transverse cylinder 151 enables the connecting frame 14 and the grinding assembly 11 to move laterally, and the variable frequency motor 156 enables the connecting frame 14 and the grinding assembly 11 to rotate.

[0105] Vacuum pump 17 is connected to intermediate shaft 152 via telescopic hose 171.

[0106] After one end of the flat plate abutment 122 retracts into the flat plate grinding component 112, the aforementioned telescopic hose 171, intermediate shaft 152, rotary joint 153, drive shaft 154, connecting pipe 143, air guide column 116, connecting channel 115, and flat plate adsorption port 117 can be connected in sequence to facilitate adsorption and fixation of the flat plate metal plate 51; after one end of the arc plate abutment 123 retracts into the arc plate grinding component 113, the aforementioned telescopic hose 171, intermediate shaft 152, rotary joint 153, drive shaft 154, connecting pipe 143, air guide column 116, connecting channel 115, and arc plate adsorption port 118 can be connected in sequence to facilitate adsorption and fixation of the arc-shaped plate metal plate 61.

[0107] Reference Figure 1 The polishing liquid injection mechanism mainly includes an injection pipe 21, which is disposed between and above the two grinding components 11. The injection pipe 21 is used to spray polishing liquid onto the surface of the metal plate being processed from top to bottom to improve the grinding and polishing effect of the metal plate.

[0108] The plate side grinding mechanism 3 is located between two grinding components 11 and is used to grind and polish the side of the flat metal plate 51. The plate side grinding mechanism 3 mainly includes a side grinding rotating shaft 31, a side grinding head 32, a side grinding drive motor 33 and a lifting component 34.

[0109] The side grinding rotating shaft 31 is arranged longitudinally, and the middle part of the side grinding rotating shaft 31 has a frustum-shaped liquid baffle 311.

[0110] The side grinding head 32 is fixed to the top of the side grinding rotating shaft 31, and the side grinding head 32 is located between the two grinding components 11.

[0111] The upper end of the output shaft of the side grinding drive motor 33 is connected to an extension shaft 331. The cross-section of the extension shaft 331 is a regular polygon. The lower end of the side grinding rotating shaft 31 is provided with a plug-in groove 312 that matches the extension shaft 331. The side grinding rotating shaft 31 and the upper part of the extension shaft 331 are plugged into each other through the plug-in groove 312.

[0112] The lifting assembly 34 mainly includes a lifting plate 341, a guide rod 342, a lifting bracket 343, a lifting cylinder 344, a pressure sensor 345, and a collar 346.

[0113] The side grinding rotating shaft 31 passes through the lifting plate 341, the lifting plate 341 can move longitudinally, and the side grinding rotating shaft 31 can rotate relative to the lifting plate 341.

[0114] The guide rod 342 is arranged longitudinally and slidably connected to the lifting plate 341. The guide rod 342 is used to guide the movement of the lifting plate 341 longitudinally.

[0115] The lifting bracket 343 is fixed to the bottom of the lifting plate 341, and the extension shaft 331 passes through the lifting bracket 343 and can rotate relative to the lifting bracket 343.

[0116] The movable end of the lifting cylinder 344 is connected to the lifting plate 341 and is used to drive the lifting plate 341 to move longitudinally.

[0117] The pressure sensor 345 is ring-shaped and is sleeved on the extension shaft 331. The lifting plate 341 can rotate relative to the pressure sensor 345. The upper side of the pressure sensor 345 is indirectly in contact with the lower end of the side grinding rotating shaft 31, and the lower side is fixedly connected to the lifting bracket 343.

[0118] The collar 346 can only move longitudinally and cannot rotate; the collar 346 is sleeved on the extension shaft 331 and located between the lower end of the side grinding rotating shaft 31 and the upper side of the pressure sensor 345. The extension shaft 331 can rotate relative to the collar 346. A connecting ear 347 is fixed on the side wall of the collar 346. A sliding groove 348 matching the connecting ear 347 is provided on the lifting bracket 343. The connecting ear 347 and the sliding groove 348 are longitudinally slidably connected.

[0119] The working principle of the plate side grinding mechanism 3 is as follows: After fixing the flat metal plate 51 through the grinding assembly 11 and making the side of the metal plate contact the upper side of the side grinding head 32, the lifting cylinder 344 drives the lifting plate 341 and the lifting bracket 343 to move upward. Through the pressure sensor 345 and the collar 346, the side grinding rotating shaft 31 and the side grinding head 32 move upward, so that the side grinding head 32 contacts the side of the flat metal plate 51 and there is a predetermined pressing force between them. The variable frequency motor 156 of the grinding assembly 11 adopts variable frequency control, which enables the grinding assembly 11 to rotate at low or high speeds. During the low-speed rotation of the flat metal plate 51 with the grinding assembly 11, the lifting cylinder 344 and the grinding assembly 11... 1. The side grinding head 32 is moved longitudinally in a linkage manner to maintain a predetermined extrusion pressure between the side grinding head 32 and the side of the flat metal plate 51, thereby facilitating the grinding and polishing of the side of the flat metal plate 51 by the high-speed rotating side grinding head 32. The magnitude of the extrusion pressure between the side grinding head 32 and the side of the metal plate is detected in real time by the pressure sensor 345. The pressure sensor 345 feeds back the detection data to the control system (not shown in the figure) used in conjunction with the grinding and polishing device. The control system then sends a corresponding command to the lifting cylinder 344 to drive the lifting plate 341 and the side grinding head 32 to move up or down a certain distance, thereby maintaining a predetermined extrusion pressure between the side grinding head 32 and the side of the flat metal plate 51.

[0120] Furthermore, as can be seen from the foregoing, since the collar 346 can only move longitudinally and not rotate, the rotation of the side grinding rotating shaft 31 will not cause the collar 346 to rotate, and therefore there will be no tendency to cause the pressure sensor 345 to rotate. In other words, by setting the collar 346, the influence of the rotation of the side grinding rotating shaft 31 on the detection result of the pressure sensor 345 can be reduced, making the detection result more accurate. This is beneficial to ensuring the grinding and polishing effect of the side grinding head 32 on the side of the flat metal plate 51.

[0121] The dust suction and liquid discharge mechanism can mainly include a grinding chamber 41, a dust discharge pipe 42, and a vacuum cleaner 43.

[0122] The lower front part of the grinding chamber 41 has a surrounding plate 411 ( Figure 1 (As shown in the front-back direction), the upper front part has an openable and closable chamber door (not shown in the figure), which facilitates loading and unloading of the grinding assembly 11 after opening the chamber door.

[0123] A seepage-proof sleeve 412 is welded and fixed to the bottom inner side of the grinding chamber 41. The side grinding rotating shaft 31 rotatably passes through the seepage-proof sleeve 412. The top of the seepage-proof sleeve 412 extends upward, and the liquid-blocking component 311 is located above the seepage-proof sleeve 412. The cooperation between the liquid-blocking component 311 and the seepage-proof sleeve 412 can prevent the falling polishing liquid from seeping into the space between the side grinding rotating shaft 31 and the grinding chamber 41.

[0124] The bottom of the grinding chamber 41 is connected to a drain pipe 413 to facilitate the timely removal of waste chips and polishing liquid that accumulate at the bottom of the inner side of the grinding chamber 41; the grinding assembly 11 and the connecting frame 14 are located inside the grinding chamber 41; the transmission sleeve 155 is rotatably connected to the side wall of the grinding chamber 41; the lifting plate 341, guide rod 342, lifting bracket 343, lifting cylinder 344, pressure sensor 345 and collar 346 are located on the lower side of the grinding chamber 41; the liquid injection pipe 21 is connected to the top of the inner side of the grinding chamber 41.

[0125] One end of the dust exhaust pipe 42 is connected to the upper part of the side wall of the grinding chamber 41.

[0126] The vacuum cleaner 43 has an inlet 431, a constricted channel 432, a guide cavity 433, and an outlet 434 connected sequentially from right to left. The inlet 431 is connected to the other end of the dust exhaust pipe 42, and the outlet 434 is connected to a drain pipe 44, which can guide the dust and polishing liquid in the polishing chamber 41 to a designated location. The diameter of the constricted channel 432 gradually decreases from right to left, and the diameter of the guide cavity 433 is equal to the diameter of the narrow end of the constricted channel 432. An air inlet pipe 435 is connected to the side wall of the vacuum cleaner 43, and one end of the air inlet pipe 435 extends into the constricted channel 432 and faces the guide cavity 433.

[0127] The vacuum cleaner 43 uses the venturi effect brought about by the constriction channel 432 and the guide cavity 433 to generate a vacuum negative pressure at the inlet 431 by the high-speed airflow, so as to suck away the smoke and dust generated in the grinding chamber 41 due to processing.

[0128] In addition, the lower end of the drain pipe 413 can also be connected to the dust drain pipe 42. After the polishing liquid flows downward into the dust drain pipe 42, it can absorb the dust in the dust drain pipe 42.

[0129] Secondly, this embodiment provides a method for using the first type of grinding and polishing device described above, which is used to process metal plates in the shape of arc plates. The method for using the grinding and polishing device mainly includes the following steps:

[0130] Step S11: Fix the arc-shaped metal plate onto the polishing assembly 11 located on the left side;

[0131] In step S11, fixing the arc-shaped metal plate onto the polishing assembly 11 located on the left side includes the following steps: first, placing the flat metal plate onto the polishing assembly 11 located on the left side, so that the polishing assembly 11 contacts the left side of the metal plate, and then using the vacuum pump 17 on the left side to generate negative pressure to adsorb and fix the metal plate onto the polishing assembly 11.

[0132] Step S21: Move the two polishing components 11 so that the polishing component 11 on the right side contacts the right side of the metal plate.

[0133] Step S31: Rotate the polishing assembly 11 located on the left side at high speed to polish the right surface of the metal plate.

[0134] Step S41: After polishing the right surface of the metal plate, first stop the rotation of the polishing component 11 on the left and turn off the vacuum pump 17 on the left. Then, use the vacuum pump 17 on the right to generate negative pressure to adsorb and fix the metal plate onto the polishing component 11 on the right. Then, make the polishing component 11 on the right rotate at high speed so that the left surface of the metal plate can be polished by the polishing component 11 on the left.

[0135] Thirdly, this embodiment provides a second method of using the above-mentioned grinding and polishing apparatus, which is used to process flat metal plates. The method of using the grinding and polishing apparatus mainly includes the following steps:

[0136] Step S12: Fix the flat metal plate 51 onto the polishing assembly 11 located on the left side;

[0137] In step S12, when fixing the flat metal plate 51 onto the polishing assembly 11 located on the left side, the following steps are included: first, the flat metal plate is placed on the polishing assembly 11 located on the left side, so that the polishing assembly 11 contacts the left side of the metal plate, and then the vacuum pump 17 on the left side generates negative pressure to adsorb and fix the metal plate onto the polishing assembly 11.

[0138] Step S22: Move the two polishing components 11 so that the polishing component 11 on the right side contacts the right side of the metal plate.

[0139] Step S32: Rotate the polishing assembly 11 located on the left side at high speed to polish the right surface of the metal plate.

[0140] Step S42: After polishing the right surface of the metal plate, first stop the rotation of the polishing component 11 on the left and turn off the vacuum pump 17 on the left. Then, use the vacuum pump 17 on the right to generate negative pressure to adsorb and fix the metal plate on the polishing component 11 on the right. Then, make the polishing component 11 on the right rotate at high speed so as to polish the left surface of the metal plate through the polishing component 11 on the left.

[0141] Step S52: After grinding and polishing the left surface of the metal plate, first move the grinding head upward so that the grinding head contacts the side of the metal plate and the two reach a predetermined pressure. Then, rotate the grinding assembly 11 on the right side at a low speed and rotate the grinding head at a high speed to grind and polish the side of the metal plate.

[0142] Fourthly, this embodiment provides a third method of using the above-mentioned grinding and polishing apparatus, which is used to process flat metal plates. The method of using the grinding and polishing apparatus mainly includes the following steps:

[0143] Step S13: Fix the flat metal plate 51 onto the polishing assembly 11 located on the left side;

[0144] In step S13, when fixing the flat metal plate 51 onto the polishing assembly 11 located on the left side, the following steps are included: first, the flat metal plate is placed on the polishing assembly 11 located on the left side, so that the polishing assembly 11 contacts the left side of the metal plate, and then the vacuum pump 17 on the left side generates negative pressure to adsorb and fix the metal plate onto the polishing assembly 11.

[0145] Step S23: Move the two polishing components 11 so that the polishing component 11 on the right side contacts the right side of the metal plate.

[0146] Step S33: Rotate the polishing assembly 11 located on the left side at high speed to polish the right surface of the metal plate.

[0147] Step S43: After grinding and polishing the right surface of the metal plate, first move the grinding head upward so that the grinding head contacts the side of the metal plate and the two reach a predetermined pressure. Then, rotate the grinding assembly 11 located on the left side at a low speed and rotate the grinding head at a high speed to grind and polish the side of the metal plate.

[0148] Step S53: After grinding and polishing the right surface and side of the metal plate, first stop the rotation of the grinding component 11 located on the left and turn off the vacuum pump 17 on the left. Then, generate negative pressure through the vacuum pump 17 on the right to adsorb and fix the metal plate on the grinding component 11 located on the right. Then, make the grinding component 11 located on the right rotate at high speed so as to grind and polish the left surface of the metal plate through the grinding component 11 located on the left.

[0149] As can be seen from the above, the grinding and polishing device has at least the following beneficial effects:

[0150] 1. By setting up two plate grinding mechanisms 1, the grinding and polishing device can grind and polish the left and right surfaces of the metal plate without flipping the metal plate, which is beneficial to improving processing efficiency; in addition, when the grinding and polishing device grinds and polishes the left and right surfaces of the metal plate, there are no grinding dead corners, and there is no need to deal with the grinding dead corners afterward, which further improves processing efficiency.

[0151] Second, by setting the lifting component 34 of the plate side grinding mechanism 3, the grinding and polishing device can grind and polish the side of the round or rectangular flat metal plate 51.

[0152] Third, by setting up two plate grinding mechanisms 1, the grinding and polishing device can grind and polish the left and right surfaces of the arc-shaped metal plate 61.

[0153] Fourth, compared with existing technologies, the grinding and polishing device can use polishing liquid, which has a better grinding and polishing effect on metal plates.

[0154] 5. Compared with existing technologies, the vacuum cleaner 43 of the grinding and polishing device does not need to use a filter screen, and therefore does not need to replace the filter screen regularly.

[0155] VI. The above-mentioned adsorption structure facilitates the adsorption and fixation of metal plates of different shapes (flat or curved plates).

[0156] VII. The above-mentioned limiting structure ensures the adsorption and fixation effect of the adsorption structure on the metal plate.

[0157] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Without conflict, the embodiments and features described in the embodiments of this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding and polishing apparatus, characterized in that, The plate grinding mechanism includes two symmetrically arranged plate grinding mechanisms relative to a vertical plane, used to grind the left or right surface of a metal plate placed vertically between them. The plate grinding mechanism includes: A polishing assembly includes a connecting plate, a flat polishing component, and an adsorption structure. The flat polishing component is fixed to one side of the connecting plate. The adsorption structure includes an adsorption channel, a connecting channel, and an air guide column. The adsorption channel is located inside the polishing assembly, with one end serving as a flat adsorption port located on one side of the flat polishing component. The connecting channel is located inside the polishing assembly, with one end connected to the adsorption channel. The air guide column is hollow, with one end fixed to the side of the connecting plate and connected to the other end of the connecting channel, the other end of the air guide column being closed, and air holes provided on the side wall of the air guide column. A connecting frame includes a support plate and a connecting pipe; one end of the connecting pipe is fixedly connected to the support plate and the other end is connected to the air guide column; the air hole is located inside the connecting pipe. The drive assembly includes a transverse cylinder, an intermediate shaft, a rotary joint, a drive shaft, and a variable frequency motor connected in sequence; the intermediate shaft is tubular; the drive shaft is square tubular, with one end of the drive shaft connected to one end of the connecting pipe; the rotary joint connects the drive shaft and the intermediate shaft; the output shaft of the variable frequency motor is drively connected to the drive shaft to rotate the drive shaft; A vacuum pump is connected to the intermediate shaft via a telescopic hose.

2. The grinding and polishing apparatus according to claim 1, characterized in that, The connecting pipe is rotatably connected to the air guide column; The connecting frame also includes a support bar, one end of which is fixed to the support plate and the other end is detachably connected to the side of the connecting plate.

3. The grinding and polishing apparatus according to claim 1, characterized in that, The drive assembly further includes a transmission sleeve that is axially slidably sleeved with the transmission shaft, and the transmission sleeve has transmission teeth. The output shaft of the variable frequency motor is equipped with a drive gear that meshes with the transmission gear.

4. The grinding and polishing apparatus according to claim 1, characterized in that, The grinding assembly also includes an arc plate grinding component, wherein the flat plate grinding component and the arc plate grinding component are respectively fixed on opposite sides of the connecting plate; The other end of the adsorption channel is an arc plate adsorption port, which is located on one side of the arc plate grinding part; One end of the connecting channel is connected to the middle of the adsorption channel.

5. The grinding and polishing apparatus according to claim 4, characterized in that, The polishing assembly also includes: The movable plug slides within the adsorption channel; Flat plate support; and Arc plate abutment; in: The flat plate abutment and the arc plate abutment are respectively fixed on opposite sides of the movable plug; The movable plug, the flat plate abutment, and the arc plate abutment are coaxial, and the sum of their axial lengths is greater than the length of the adsorption channel.

6. The grinding and polishing apparatus according to claim 5, characterized in that, The polishing assembly also includes: The longitudinal cavity is located within the grinding assembly; A sliding fitting is provided that slides into the longitudinal cavity. An extension rod, with its lower end connected to the top of the sliding fitting and its upper part capable of abutting against one side of the movable plug to restrict the movement of the movable plug along one side; and The transverse cavity is located within the grinding assembly. One end of the transverse cavity is connected to the longitudinal cavity and located above the sliding part, while the other end is connected to the connecting channel.

7. The grinding and polishing apparatus according to claim 1, characterized in that, The grinding and polishing device also includes an injection pipe for spraying polishing liquid.

8. The grinding and polishing apparatus according to claim 1, characterized in that, The grinding and polishing device also includes: A side grinding rotating shaft is arranged longitudinally; A side grinding head is fixed to the top of the side grinding rotating shaft and located between the two grinding components; A side-grinding drive motor has an extension shaft connected to the upper end of its output shaft. The extension shaft has a polygonal cross-section, and the lower end of the side-grinding rotating shaft has a matching insertion slot for the extension shaft. The lifting assembly includes a lifting plate, a lifting bracket, a lifting cylinder, and a pressure sensor; the lifting plate is penetrated by the side grinding rotating shaft; the lifting bracket is fixed to the bottom of the lifting plate, and the extension shaft penetrates the lifting bracket and is rotatable relative to the lifting bracket; the movable end of the lifting cylinder is connected to the lifting plate; the upper side of the pressure sensor is in direct or indirect contact with the lower end of the side grinding rotating shaft, and the lower side is fixedly connected to the lifting bracket.

9. The grinding and polishing apparatus according to claim 8, characterized in that, The grinding and polishing device also includes a collar; The collar is sleeved on the extension shaft and located between the lower end of the side grinding rotating shaft and the upper side of the pressure sensor. The collar is rotatable relative to the extension shaft, and a connecting lug is fixed on the side wall of the collar. The lifting bracket has a sliding groove that matches the connecting ear, and the connecting ear is slidably connected to the sliding groove in the longitudinal direction.

10. A method of using the polishing apparatus as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step 1: Secure the metal plate to the grinding assembly located on the left side; Step 2: Move the two grinding components so that the grinding component on the right side contacts the right side of the metal plate; Step 3: Rotate the polishing component on the left to polish the right surface of the metal plate; Step 4: After polishing the right surface of the metal plate, first stop the rotation of the polishing component on the left and turn off the vacuum pump on the left. Then, use the vacuum pump on the right to generate negative pressure to adsorb and fix the metal plate onto the polishing component on the right. Then, rotate the polishing component on the right to polish the left surface of the metal plate through the polishing component on the left.

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