672 results about "Sander" patented technology

The invention belongs to the technical field of turbine blade machining, and particularly discloses turbine blade machining and grinding equipment which comprises a workbench, the upper end of the workbench is connected with a box body, one side of the upper end of the workbench is connected with a supporting table, the upper end of the supporting table is connected with abrasive belt grinding equipment, and one side of the upper end of the workbench is connected with a mechanical arm mechanism. A blade workpiece is clamped at one end of the mechanical arm mechanism, a stabilizing mechanism is connected to one side of the outer wall of the mechanical arm mechanism and comprises a mounting ring, a connecting frame is connected to one end of the mounting ring, guide blocks are slidably connected to the two sides of the connecting frame, and fixing rods are connected to one sides of the two guide blocks. By means of the mechanical arm mechanism and the stabilizing mechanism with the self-adaptive capacity, flexible supporting is provided when a complex curved surface blade is polished, and therefore high-precision and deformation-free automatic polishing is achieved.

The utility model discloses a sanding machine and a green brick conveying device, and relates to the technical field of green brick firing. Comprising a sand discharging assembly, a uniformizing assembly and a sensing assembly which are arranged on a rack, the uniformizing assembly is arranged below the sand discharging assembly, the sand discharging assembly conveys quartz sand to the uniformizing assembly, and when a base plate passes through the lower portion of the uniformizing assembly, the uniformizing assembly spreads the quartz sand into the surface of a green brick. The method has the advantages that a fired finished product cannot be adhered to the base plate, and the yield is high.

The utility model provides steel rail welding seam polishing equipment which comprises a first robot and a second robot, the first robot carries a first belt sander to be located on the first side of a steel rail to be polished through a first mechanical arm, and the second robot carries a second belt sander to be located on the second side of the steel rail to be polished through a second mechanical arm. The first belt sander comprises a first abrasive belt wheel assembly and a first abrasive belt arranged outside the first abrasive belt wheel assembly in a sleeving mode, and the first abrasive belt wheel assembly drives the first abrasive belt to polish a first side welding seam of the steel rail to be polished. The second belt sander comprises a second abrasive belt wheel assembly and a second abrasive belt arranged outside the second abrasive belt wheel assembly in a sleeving mode, and the second abrasive belt wheel assembly drives the second abrasive belt to polish the second side welding seam of the steel rail to be polished. According to the scheme, the two robots are adopted to carry the belt sanders respectively to polish the two sides of the steel rail welding seam at the same time, and the effects that the polishing efficiency is high, the labor cost is saved, and the polishing quality is improved are achieved.

The invention provides a robot grinding and polishing method and system for titanium alloy casing runner welding slag. The system comprises a robot, a robot controller, a six-dimensional force sensor, a displacement sensor, a three-dimensional scanner, a belt sander and a workbench. The method comprises the following steps: firstly, fixing a casing on a workbench, positioning the casing by using a displacement sensor, scanning a casing flow channel by using a three-dimensional scanner to obtain a flow channel welding slag distribution state, grasping a belt sander by using a robot equipped with a six-dimensional force sensor, carrying out gravity calibration on the belt sander before grinding and polishing, and carrying out welding slag distribution on the belt sander; and the gravity of the belt sander is compensated according to the calibration result. Three-dimensional software is used for dividing a flow channel area, a machining path is calculated through an off-line trajectory planning method, a robot executable machining program is generated through post-processing for grinding and polishing, in the grinding and polishing process, in order to adapt to the complex curved surface of the cartridge receiver flow channel, real-time adjustment is conducted according to the contact force value of a tool and a workpiece, and the contact force value is transmitted to a robot controller; the removal amount can be determined, the roughness is guaranteed, and the surface quality is improved.

The present application relates to a high-roughness surface treatment method for a braking steel backing, and belongs to the technical field of surface treatment of braking steel backings. The method comprises the following operation steps: step one, placing onto a feeding table a braking steel backing to be processed, and conveying the braking steel backing by means of a conveyor belt so as to perform processing; step two, in an HRT polishing assembly, sequentially passing the steel backing through an ordinary belt sander, a forward planetary gear, a reverse planetary gear and an HRT belt sander to complete the processes of surface roughness treatment and deburring; step three, in a cleaning and rust-proofing assembly, removing processing residues and a saponification liquid from the surface of the braking steel backing by means of a rough cleaning sprayer, and then an air knife I blowing off a cleaning liquid and metal residues; step four, using a rust-proofing sprayer to spray a rust-proofing liquid, and then performing double air cutting; and step five, placing the braking steel backing which has been subjected to surface treatment into a material box for standby storage. By means of treating the surface of the braking steel backing bonded with a friction material, the effects of more stable quality and high-roughness mating surfaces are achieved.

The utility model relates to the technical field of polishing, and discloses an anti-explosion bent pipe sander which comprises a base, a fixing clamping seat used for positioning a bent pipe is installed on the upper surface of the base, a control box is arranged on one side of the fixing clamping seat, and a first moving mechanism is arranged on the upper surface of the base. Through cooperation of the first moving mechanism, the second moving mechanism, the rotating mechanism, the driving mechanism, the rotating disc and the polishing mechanism, the position and the inclination angle of the rotating disc can be conveniently adjusted through the first moving mechanism, the second moving mechanism and the rotating mechanism, and therefore the rotating disc and the bent pipe can be conveniently and perpendicularly arranged; according to the elbow pipe polishing device, the polishing mechanism can conveniently polish the elbow pipe, meanwhile, the tensioning assembly is used for conveniently adjusting the tensioning degree of the abrasive belt so that the elbow pipes of different specifications can be conveniently polished, the application range of the device is widened, and meanwhile compared with manual polishing, the elbow pipe polishing efficiency is improved, and the elbow pipe polishing quality is improved.

The invention discloses a workpiece grinding device and aims to provide a multi-station abrasive belt grinding machine which is high in machining efficiency, capable of conducting multi-level precision grinding at the same time, small in occupied space and convenient to replace an abrasive belt and a control method of the multi-station abrasive belt grinding machine. According to the key points of the technical scheme, through a machining rotary disc and a grinding device arranged in the outer tangent line direction of the machining rotary disc, a positioning device corresponding to the grinding device is arranged on the machining rotary disc, the grinding device can set different parameters according to requirements, automatic switching of multi-stage machining parameters is completed, the adaptability of the technology is improved, and the machining efficiency is improved. Integrated machining of multi-stage precision grinding of materials is achieved, meanwhile, the abrasive belt can be conveniently replaced by adjusting the tightness degree of the grinding abrasive belt, in the grinding machining process of the workpiece, contact between the grinding abrasive belt and the workpiece is achieved through the driving assembly, the overall machining precision is high, the machining effect is good, and the machining efficiency is high. The invention is suitable for the technical field of workpiece polishing devices.

The utility model discloses a tool-free quick-change blade structure, which belongs to the technical field of sanders, solves the problem of inconvenience in blade replacement in the prior art, and adopts the technical scheme that the tool-free quick-change blade structure mainly comprises a cutter head and a blade, the blade is provided with a movable hole and a locking hole, and the diameter of the locking hole is smaller than that of the movable hole. The movable hole is communicated with the locking hole through a connecting section, the connecting section is provided with a limiting piece, a connecting piece is preassembled on the cutter head and can penetrate through the movable hole, and when the blade moves relative to the cutter head, the connecting piece forces the limiting piece to move so that the connecting piece can enter and exit from the locking hole. And the limiting piece resets to limit and lock the connecting piece in the locking hole. The tool-free quick-change blade is mainly used for realizing tool-free quick-change of the blade, and is more convenient to change. The utility model further aims at disclosing the mower, so that the blade is more convenient to replace.

The utility model provides integrated multifunctional polishing equipment. The integrated multifunctional polishing equipment comprises a multi-shaft clamping device, a first rotating disc, a second rotating disc, a first drive and a second drive, wherein the first rotating disc and the second rotating disc are vertical and oppositely arranged; the multiple multi-shaft clamping devices are symmetrically arranged on the periphery of the rotary disc. A plurality of polishing devices are symmetrically arranged on the first rotating disc and the second rotating disc in the circumferential direction; the polishing device on the first rotating disc is a first belt sander; the first driver is arranged on the base and can synchronously drive abrasive belts of the multiple first belt sanders to rotate. And the second driver can drive the rotating disc to rotate, and then the polishing device is driven to rotate at the circumferential position. Through the arrangement of the vertical rotating disc, vertical switching of the grinding devices is achieved, a plurality of multi-shaft clamping devices can be arranged on the periphery of the rotating disc, synchronous grinding machining of a plurality of parts is achieved, the situation that one grinding device works and other grinding devices are idle is avoided, the utilization rate of the grinding devices is greatly increased, the machining efficiency is improved, and large-batch production can be achieved.

The invention relates to the field of numerical control sanding machines for cookware, in particular to a numerical control sanding machine for the top edge of a special-shaped cookware. A numerical control sanding machine for the top edge of a special-shaped cookware comprises a machine tool, a moving and polishing mechanism and a workpiece clamping and rotating mechanism. The moving and polishing mechanism comprises a moving assembly, an adjusting assembly and a polishing assembly. The workpiece clamping and rotating mechanism is provided with an adapter plate, and the cookware is magnetically connected with the adapter plate; a rotary driving motor is arranged at the bottom of the workpiece rotating assembly to drive the cookware to rotate; the workpiece clamping and rotating mechanism is further provided with a transmission belt, and a linear driving motor is arranged at one end of the transmission belt and drives the workpiece rotating assembly to linearly move. According to the numerical control sanding machine for the top edges of the special-shaped cookware at different angles, the sanding belt is provided with a triangular structure capable of being flexibly adjusted, and the sanding belt further has the angle adjusting and tensioning adjusting functions, so that the sanding belt can be better attached to the edge of the cookware.

The invention provides a sanding machine capable of adjusting the grinding pressure, and relates to the technical field of sanding machines, the sanding machine comprises a sanding machine body, a first groove is formed in the sanding machine body, two rotating wheels are arranged in the first groove, a tensioning wheel and a lifting table are arranged between the two rotating wheels, sanding belts are arranged on the rotating wheels, and the sanding belts are arranged on the lifting table. A pressing and pasting plate is arranged on the lifting table, a pressure adjusting assembly is arranged on the pressing and pasting plate, a plurality of metal air conveying hoses are arranged on one side of the pressure adjusting assembly, and a conveying belt is arranged on one side below the two rotating wheels, so that the grinding pressure can be adjusted according to the material condition, and materials with uneven surfaces can be ground; the application range is expanded.

The present invention discloses an uninterrupted automatic sanding production line, which includes a supporting plate-feeding hydraulic roller elevator, a sheet material automatic feeder, a first plate-feeding roller conveyor, a first sander, a second plate-feeding roller conveyor, a rotary flipping integrated machine, a second sander, an outboard roller conveyor, a sheet material receiver, a first hydraulic roller outboard elevator, a second outboard hydraulic roller elevator, and a servo control system for controlling the operating states of each device; the automatic feeder transfers the sheet material onto the first plate-feeding roller conveyor and transports it into the first sander, the second plate-feeding roller conveyor is used to transport the wooden board to the rotary flipping integrated machine, the rotary flipping integrated machine flips the sheet material and transports the flipped wooden board into the second sander, the second sander performs secondary sanding treatment on the other side of the sheet material, and the sheet material receiver is used to stack and level the sheet material and place the leveled sheet material on the first hydraulic roller outboard elevator.

The utility model provides a hydraulic control two-wheel belt sander and a polishing system, which comprises a driving mechanism, a hydraulic control mechanism and a belt sander, the polishing mechanism comprises abutting wheels and abrasive belts, the abutting wheels and the driving wheels are arranged at intervals, and the abrasive belts are arranged on the abutting wheels and the driving wheels in a sleeving mode; and the force control mechanism comprises a control assembly and an adjusting assembly, the adjusting assembly is connected to the driving mechanism and the polishing mechanism, and the control assembly comprises a force sensor, a displacement sensor and a central control module. Driving force is provided for the polishing process of the polishing mechanism through the driving mechanism, in the process, the force control mechanism can adjust the operation position of the polishing mechanism so that the polishing mechanism can keep high precision and high rigidity of polishing all the time, the force control mechanism can conduct self-adaptive adjustment on the process, and the polishing precision of the polishing mechanism is improved. Therefore, the method has the advantages of high response speed, accuracy and high efficiency. Compared with conventional grinding equipment at the present stage, the grinding equipment has the remarkable advantages in the aspects of grinding quality, the regulation and control process, the machining efficiency and the like.

A variable flow sand mill. The invention forms multiple forms of vortexes in the mill by scientifically combining different structures of dispersing discs. When the dispersing discs run at high speed in the mill, the guide flow slope of the first dispersing disc is downward, giving the material a vertical downward and horizontal outward component force; the guide flow slope of the second dispersing disc is upward, giving the material a vertical upward and horizontal outward component force, the first dispersing disc and the second dispersing disc constitute the driving force of the large circulation in the mill; the third dispersing disc is affected by the isolation column, so that the material inside the isolation column moves upward and towards the central axis, and the material is bounced when colliding with the shaft sleeve; the material outside the isolation column moves upward and towards the inner wall of the cylinder, and the material is bounced when colliding with the inner wall, thereby forming vortex small circulations of different sizes inside and outside, multiple vortex small circulations in the mill cooperate with the overall large circulation, greatly increasing the frequency of collisions between particles in the material, and improving the grinding efficiency.

The invention is suitable for the technical field of sanding machines, and provides a sanding machine capable of polishing wooden workpieces with different diameters and curved surfaces in a self-adaptive mode, the sanding machine comprises a rack, a clamping module, a sanding module and a paper folding mechanical arm, the clamping mechanism can clamp columnar wooden workpieces with different diameters, and the sanding module is used for sanding the wooden workpieces with different diameters; clamping and limiting are carried out through an incomplete gear mechanism; the planetary gear sanding mechanism can remarkably reduce sanding deviation caused by vibration, and the surface smoothness and the gravity center consistency of a finished product are improved. The paper folding mechanical arm can conduct torsion stretching in different directions, the position of the sanding mechanism is changed, and then wood workpieces with different curvatures and angles are ground. The number of layers and the size of a Jiyun paper folding structure in the paper folding mechanical arm can be changed, so that the Jiyun paper folding structure has good replaceability and can be suitable for grinding places of different wood workpieces.

This application discloses a sheet metal sanding device, including a sander body, a tension adjustment mechanism, a fixed pipe, a cooling pipe, a coolant circulation mechanism, a drive mechanism, and a dust collection device. The tension adjustment mechanism is located within the sander body, the fixed pipe is fixedly mounted on the tension adjustment mechanism, the cooling pipe is rotatably sleeved on the fixed pipe, and the drive mechanism is connected to the cooling pipe. Multiple through holes are provided on both the fixed pipe and the cooling pipe, connecting the sealed cavities to the cooling cavities. The coolant circulation mechanism is connected to two sealed cavities. The dust collection device's suction end penetrates one of the sealed cavities and extends between the two sealed cavities. Multiple dust collection hole groups are provided on the fixed pipe, and multiple dust collection grooves are provided on the cooling pipe corresponding to these groups. Therefore, by integrating roller cooling and dust collection functions into the tension adjustment mechanism, the life of the sanding belt is effectively extended, sanding quality is ensured, and rust on the rollers and moisture absorption of the sheet metal are prevented, reducing consumable costs and maintenance workload.

The invention provides a complex curved surface controllable allowance grinding and polishing process based on a belt sander, and relates to machining, the complex curved surface controllable allowance grinding and polishing process comprises the following steps: S1, comparing an initial three-dimensional model with a three-dimensional model after surfacing, extracting a welding bead area point cloud, solving a welding bead contour, and cutting the initial three-dimensional model according to the welding bead contour to obtain a target forming surface; s2, a rough machining track covering a welding bead area is designed, part of allowance is removed, the rough machining track is projected to a target forming face, and a finish machining track is generated; s3, rough grinding is conducted through a fixed force control and low-mesh abrasive belt, real-time allowance information is obtained through staged data scanning, and the position and posture of a rough machining track are optimized; and S4, fine grinding is conducted through floating force control and a high-mesh abrasive belt, real-time allowance information is obtained through staged data scanning, and the grinding speed is optimized. The method has the beneficial effects that high-precision allowance control and stable grinding and polishing effects of the complex curved surface surfacing area are achieved, and the adaptability to complex geometric changes is improved.

The utility model provides a sander feeding device capable of adjusting the direction of a workpiece, and relates to the field of sander feeding, a servo motor C is installed on the top end face of an installation plate, a guide wheel is installed on an output shaft at the bottom end of the servo motor C, a rubber layer is attached to the outer wall of the guide wheel, and the servo motor C and the guide wheel jointly form a conveying structure for the workpiece. The problems that due to the fact that an existing sanding machine depends on manual holding, an operator can not hold the sanding machine firmly easily, a workpiece is drawn into the sanding machine to be damaged, and the feeding direction cannot be adjusted according to the polishing direction during polishing operation are solved. The guide wheel can be rotationally driven by starting the servo motor C installed on the top end face of the installation plate, automatic stepping feeding operation of the workpiece is achieved through friction contact of the guide wheel and the workpiece, and compared with traditional manual handheld feeding, the feeding efficiency can be improved through the design.

The utility model discloses a handheld belt sander which comprises a holding rod, one end of the holding rod is connected with a power wheel through a power device, the side wall of the holding rod is connected with a horizontally-arranged mounting plate through a spring supporting device, and the upper side of the mounting plate is fixedly connected with a vertically-arranged fixing plate. A vertically-arranged limiting rail is arranged on the side wall of the fixing plate, a lifting rod penetrates through the limiting rail and is connected into the limiting rail in an up-down sliding mode, a threaded rod is connected to the side wall of the lifting rod in a threaded and penetrating mode, and the bottom end of the threaded rod is rotationally connected to the upper side of the mounting plate. According to the device, the power wheel, the guide wheel, the abrasive belt, the extrusion spring, the fixing cylinder, the supporting rod and other components are arranged, the arc-shaped surface of a workpiece can be effectively polished, the abrasive belt can be manually and rapidly switched, and convenience is high.

The utility model discloses a self-cleaning plate processing sander which comprises a machine frame, a motor and a dust collection box. A conveying belt is arranged in the machine frame, and the two ends of the conveying belt penetrate through the machine frame correspondingly. The motor is arranged on the side edge of the machine frame, a driving wheel is arranged at the output end of the motor, and a driven wheel is arranged in the machine frame and located at the horizontal position of the driving wheel. By means of the dust removal mechanism composed of the dust suction machine, the dust collection frame, the dust collection head, the pipeline A, the pipeline B and the dust collection box, chippings and dust generated in the sanding process can be effectively collected, flying of the dust in the working environment is reduced, the working environment of workers is improved, body health of the workers is facilitated, and the machining quality is further improved; sundries on the surface of the plate can be removed through the cleaning mechanism before sanding, and the damage to the surface of the plate caused by the sundries in the sanding process is avoided; automatic conveying, sanding, sweeping and other operations of the plates are achieved through the conveying belt, the motor, the air cylinder and other automatic components.

A particle collection device, in particular a dust box, for a power tool, in particular for an eccentric or orbital sander, includes at least one collection unit for collecting particles, at least one filter cleaning unit, and at least one impulse element. The collection unit includes at least one collection container, in particular a collection receptacle, with at least one filter unit. The filter unit is arranged in the collection container for filtering particles from a fluid flowing through the collection container. The at least one filter cleaning unit is arranged on the collection container, which has at least one longitudinal axis about which the filter cleaning unit is rotatably mounted relative to the collection container and / or the filter unit. The at least one impulse element, in particular an impact extension, is configured to transmit an impulse to individual folds of a pleated filter of the filter unit.

1. The name of the design product: multifunctional glue removing polisher (J25). 2. The use of the design product: multifunctional glue removing polisher for removing glue, polishing and cutting workpieces. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: pneumatic sander (3). 2. The use of the design product: used for sanding or polishing wood, stone, metal, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: Design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The utility model relates to the technical field of grinding equipment, and discloses a belt sander with a dust removal mechanism, which comprises a workbench, the bottom of the workbench is fixedly connected with a support, a conveying assembly is arranged in the workbench, a grinding assembly is arranged on the workbench, and a dust removal assembly is arranged on the right side of the grinding assembly. The conveying assembly comprises a first motor, the first motor is fixedly installed on the lower side of the workbench, the output end of the first motor is fixedly connected with a first synchronizing wheel, and a second synchronizing wheel is rotatably installed on the front side of the workbench. According to the utility model, after the fan is started, a negative pressure area is formed through sudden drop of air pressure at the dust suction hood, dust generated by dull polish is continuously pumped into the filter box through the dust suction hood and the connecting pipe in sequence under the action of suction force, and is effectively intercepted by the filter screen, so that gas-dust separation is realized, and purified gas is continuously conveyed into the water tank under continuous suction of the fan; the auxiliary purification efficiency on the gas is enhanced, and the dust removal result is further optimized.

The utility model relates to the technical field of sanders, and provides an adsorption type sander for machining railway vehicle accessories, which comprises two support frames, a conveying assembly, two placing plates, a lifting assembly, a slide rail and a clamping assembly, the conveying assembly is arranged on the two support frames and used for conveying workpieces, the placing plates are arranged on the lifting assembly, and the slide rail is arranged on the lifting assembly. The two placing plates are fixedly installed between the two supporting frames, the number of the lifting assemblies is two, the two lifting assemblies are arranged on the two placing plates respectively, the number of the sliding rails is two, the two sliding rails are fixedly installed on the two supporting frames, and the number of the clamping assemblies is two, and the two clamping assemblies are arranged on the two sliding rails respectively. According to the technical scheme, the problem that in the prior art, when the workpieces are conveyed and sanded, the workpieces are likely to be too large or too small, so that the workpieces are difficult to enter the moving frame or position deviation is caused in the sanding process is solved.

This application relates to a force-controlled belt sander and grinding equipment, applicable to the field of belt sanders. It includes a force-controlled actuator, a connecting structure, and a grinding mechanism. The grinding mechanism is detachably mounted to the force-controlled actuator along a first direction via the connecting structure. The connecting structure includes a connecting end plate for connecting the force-controlled actuator, multiple connecting parts, and multiple sets of locking parts. The connecting parts are spaced apart along the periphery of the connecting end plate, extend along the first direction, and connect to the grinding mechanism. The locking parts are correspondingly arranged with the connecting parts and can be inserted into the connecting parts and the connecting end plate along a second direction to fix the connecting end plate to the connecting parts. By setting the locking parts to be fixed from the side of the force-controlled actuator and the grinding mechanism, this application expands the operating space during locking part assembly, allowing maintenance personnel to perform disassembly and assembly operations more conveniently, thereby effectively improving the disassembly and assembly efficiency of the force-controlled belt sander and reducing assembly difficulty.

The invention discloses an automatic double-sided sanding machine, and relates to the technical field of sanding machines, the automatic double-sided sanding machine comprises a bottom frame, a vertical frame is fixedly connected to one side of the bottom frame, a fixed plate is fixedly connected to the lower end of the vertical frame, a movable plate is arranged above the fixed plate, sliding sleeves are fixedly connected to the two sides of the movable plate, and the sliding sleeves are in sliding connection with the vertical frame; the fixed plate and the movable plate are provided with sanding mechanisms used for polishing the two faces of a workpiece, and the vertical frame is provided with a lifting mechanism used for adjusting the distance between the fixed plate and the movable plate. A small workpiece can be driven to pass through the space between the two sanding belts during working through the pushing mechanism, sanding treatment on the two faces of the workpiece is achieved through operation of the two sanding belts when the workpiece passes through, and due to the fact that the pushing mechanism is adopted to guide the workpiece to move, the problem that the small workpiece cannot pass through a sanding area in the prior art is solved.

The utility model relates to an air cylinder pressing and feeding device of a sander. The air cylinder pressing and feeding device comprises a rack, the material pressing air cylinder is mounted on the upper rack and used for providing pressing force driven by constant air pressure; the limiting assembly is used for limiting the lifting height of the upper pressing roller; the guide mechanism is used for guiding when the upper pressing roller moves up and down; the upper material pressing roller is rotationally mounted on the upper rack and is guided by the guide mechanism, and the upper material pressing roller floats up and down along with the thickness change of the plate; the lower feeding roller is rotationally mounted on the lower rack, and a plate conveying space is formed between the lower feeding roller and the upper pressing roller; the air pressure output of the material pressing air cylinder is dynamically adjusted through an external pressure adjusting valve. The spring material pressing device has the advantages that the problems existing in a traditional spring material pressing mode are solved, and the spring material pressing device is stable and reliable in pressing force, accurate in lifting height control, suitable for plates of different thicknesses, capable of prolonging the service life of equipment, improving production efficiency and safety and the like.

The utility model discloses a multifunctional sanding machine which comprises a sanding machine body, a transmission shaft is arranged at one end of the sanding machine, a protective cover is arranged on the outer side of the transmission shaft, an installation plate body is arranged at the bottom end of the transmission shaft, abrasive paper is arranged at the bottom end of the installation plate body, and a fixing mechanism is arranged between the abrasive paper and the installation plate body. A connecting plate on the outer side of the abrasive paper is fixed into a fixing plate, a clamping block in the fixing plate is arranged in a groove, the fixing plate makes contact with the abrasive paper, the abrasive paper can be preliminarily fixed, when the fixing plate is installed, a limiting plate is squeezed, meanwhile, a telescopic spring shrinks, and the abrasive paper is fixed through the resilience force effect of the spring. And the abrasive paper can be fixed between the limiting plate and the fixing plate, and the fixing effect on the abrasive paper can be further enhanced.

The utility model discloses a multi-head plane sander for scissors, which comprises a platform, a plurality of positioning grooves are arranged on the platform, templates are arranged in the positioning grooves, each template is provided with a die cavity matched with the scissors on one side, a plurality of driving rollers are arranged at one end of the platform in an up-down staggered manner, a plurality of annular abrasive papers are mounted outside the driving rollers, and a plurality of annular abrasive papers are mounted outside the annular abrasive papers. Driving mechanisms for driving the annular yarn to move transversely and lift up and down are installed on the two sides of the platform. The scissors polishing device is simple in structure, stability of the scissors during polishing is guaranteed, the annular abrasive paper moving towards the platform can conduct multiple polishing on the scissors, the polishing quality and efficiency are improved, the annular abrasive paper has downward pressing force, the force acting on the scissors during polishing can be controlled, and adaptability is improved.