A multifunctional manual processing machine capable of continuous processing

Abstract

The present invention discloses a multifunctional manual processing machine capable of continuous processing, which relates to the field of grinding and polishing technology, including a base plate fixedly mounted on a control handle, on which a driving wheel, a compensation wheel and a driven wheel group are arranged for tensioning a grinding belt; the driven wheel group includes a plurality of driven wheels, each driven wheel including a central axis, a rotating drum frame, an elastic ring and an adjusting ring, the rotating drum frame is rotatably sleeved on the central axis, the elastic ring is sleeved on the outside of the rotating drum frame and contacts the grinding belt, and the adjusting ring is used to adjust the diameter of the rotating drum frame; a chip blowing pipe is installed at the end of each driven wheel, and during grinding intervals, the grinding belt is temporarily lifted by part of the driven wheels, and the chip blowing pipe is moved down to blow the chips. The present invention ensures that the grinding belt fits the surface undulations and corner size by flexibly adjusting the diameter of all driven wheels and the position of part of the driven wheels, thereby achieving continuous and efficient grinding; at the same time, the grinding belt is regularly lifted during grinding, and the chip blowing pipe is moved down to blow the chips.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and polishing, and in particular to a multifunctional manual processing machine capable of continuous processing. Background Art

[0002] Traditional manual grinders are difficult to adapt to the complex curved surfaces and corner structures of certain special workpieces, especially corner areas. The existing processing method is often to use a grinder to grind the smooth area, leaving the corner area for workers to grind little by little with sandpaper. The grinding efficiency is low and the grinding quality is difficult to guarantee. Some current grinding devices with rollers can fit corners for grinding to a certain extent, but the roller diameter is fixed and cannot adapt to corners of different radii. Moreover, the overall structure has poor fitting effect on special-shaped surfaces and is difficult to match the undulating shapes of different curved surfaces. Problems such as uneven grinding, excessive grinding or grinding blind spots are prone to occur during the grinding process. Therefore, it is necessary to design a grinding device that can better fit special-shaped surfaces and adapt to corners of different radii. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems raised in the background technology and to propose a multifunctional manual processing machine capable of continuous processing.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A multifunctional manual processing machine capable of continuous processing comprises a base plate fixedly mounted on a control handle, a driving wheel, a compensating wheel, and a driven wheel group arranged on the base plate, a grinding belt being tensionedly mounted on the periphery of the driving wheel, the compensating wheel, and the driven wheel group, and sandpaper being adhered to the outer surface of the grinding belt;

[0006] The driving wheel is driven to rotate by the motor in the control handle, and the driven wheel assembly includes a plurality of driven wheels, some of which are driven to adjust their positions by the second telescopic member. Each driven wheel includes a central shaft, a rotating drum frame, an elastic ring, and an adjusting ring. The rotating drum frame is rotatably sleeved on the central shaft, the elastic ring is fixedly sleeved on the outside of the rotating drum frame and contacts the grinding belt, and the adjusting ring is used to adjust the diameter of the rotating drum frame.

[0007] The inner surface of the grinding belt and the elastic ring are provided with magnetically attracted soft magnetic strips, and a chip blowing pipe is installed at the end of each driven wheel. During the grinding interval, the grinding belt is briefly lifted by moving the driven wheel. At the same time, the chip blowing pipe is synchronously moved down to blow the chips.

[0008] As a further solution of the present invention: the drum frame includes a rotating shaft and a plurality of adjustment frames, the rotating shaft is sleeved on the central shaft, the surface of the rotating shaft is provided with threads, and the two ends of the rotating shaft are respectively provided with left end blocks and right end blocks, the adjustment ring is sleeved on the rotating shaft and is threadedly connected to the rotating shaft;

[0009] The adjustment ring is close to the left end block, and the right end block is fixedly installed on a side facing the left end block. The fixed ring is provided with a plurality of connecting lugs arranged in an array in a circumferential direction. A movable ring is rotatably sleeved on the adjustment ring, and the movable ring is also provided with a plurality of connecting lugs arranged in an array in a circumferential direction. The number of the connecting lugs corresponds to the number of the adjustment frame.

[0010] The adjusting frame is provided with two connecting rods, one end of the two connecting rods is rotatably connected to the adjusting frame, and the other end is rotatably connected to the connecting lugs of the fixed ring and the movable ring respectively;

[0011] A plurality of claws are provided on one side of the adjusting ring facing the left end block.

[0012] As a further solution of the present invention: a driven wheel in the driven wheel group, whose central axis is fixedly mounted on the base plate, is a first driven wheel;

[0013] A limiting slide rail is fixedly mounted on one end of the base plate away from the first driven wheel, an extension plate is slidably mounted in the limiting slide rail, one end of the extension plate extends out of the base plate, and the other end is connected to the first telescopic member, and the extension plate is driven by the first telescopic member to slide along the limiting slide rail;

[0014] A driven wheel in the driven wheel group, whose central axis is fixedly mounted on an end of the extension plate extending out of the base plate, is a second driven wheel;

[0015] The driven wheels of the driven wheel group except the first driven wheel and the second driven wheel are all third driven wheels, and the third driven wheel is arranged between the first driven wheel and the second driven wheel.

[0016] As a further solution of the present invention: an adjustment groove is provided on the base plate, a slider is slidably installed in the adjustment groove, the slider is rotationally connected to one end of the second telescopic member, and the rotational connection is locked by a bolt, and the other end of the second telescopic member is fixedly connected to the central axis of the third driven wheel.

[0017] As a further solution of the present invention: a pressure sensor is provided on the third driven wheel, and the second telescopic member adjusts the telescopic amount according to feedback from the pressure sensor;

[0018] The second driven wheel is provided with a tension sensor, and the first telescopic member adjusts the telescopic amount according to feedback from the tension sensor.

[0019] As a further solution of the present invention: a fixed block and a micro spring are sleeved on the outside of the chip blowing pipe, a top block is provided on the top of the chip blowing pipe, an air nozzle is provided on the bottom, and an air hole is provided on the top block for connecting to the air supply pipe;

[0020] The top of the micro spring is fixedly connected to the top block, and the bottom is fixedly connected to the fixed block. The top block is magnetic, and an electromagnet is arranged in the fixed block.

[0021] As a further solution of the present invention: the chip blowing pipes on the end surfaces of the first driven wheel and the second driven wheel have fixed blocks fixedly mounted on the central axis, and the chip blowing pipes are mounted on a side close to the third driven wheel;

[0022] The chip blowing pipe on the end surface of the third driven wheel has a fixed block fixedly installed on the second telescopic member.

[0023] As a further solution of the present invention: the compensation wheel is installed on the base plate through a compensation component, the compensation component includes a slide rail, a wheel frame and a fixed plate, the compensation wheel is movably installed on the wheel frame, the wheel frame is slidingly connected to the slide rail, and the wheel frame is connected to the fixed plate through a spring, and the fixed plate is fixedly connected to the base plate.

[0024] As a further solution of the present invention: the compensation wheel is in contact with the grinding belt, and ribs are provided on both sides of the compensation wheel to clamp on both sides of the grinding belt to prevent the grinding belt from deflecting.

[0025] Compared with the existing technology, the advantages of the present invention are:

[0026] 1: According to the different radius corners and undulating shapes on the curved surface, the diameters of all the driven wheels in the driven wheel group can be flexibly adjusted, and the positions of some third driven wheels can be adjusted to ensure that the grinding belt and the grinding surface always keep a close fit, achieving continuous and efficient grinding of special-shaped surfaces, and significantly improving processing quality and efficiency.

[0027] 2: During the grinding process, the third driven wheel is moved at regular intervals to allow it to absorb the grinding belt and briefly lift it up. At the same time, the chip blowing pipe is synchronously moved down to blow chips from the gap between the grinding belt and the grinding surface, effectively removing processing debris, avoiding residual debris that affects the grinding effect, and ensuring smooth grinding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the present invention when grinding a curved surface;

[0029] Figure 2 This is a schematic diagram of the front view structure of the present invention when grinding a curved surface;

[0030] Figure 3 This is a schematic diagram of the front view structure of the present invention when polishing another curved surface;

[0031] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the overall structure of the present invention from another angle;

[0033] Figure 6 for Figure 5Schematic diagram of the local enlarged structure at A in the middle;

[0034] Figure 7 This is a schematic diagram of the overall structure of the present invention after the grinding belt is removed;

[0035] Figure 8 Schematic diagram of the installation structure of the third driven wheel and the chip blowing pipe of the present invention;

[0036] Figure 9 This is a schematic diagram of the installation structure of the second driven wheel and the chip blowing pipe of the present invention;

[0037] Figure 10 It is a structural schematic diagram of the chip blowing tube of the present invention;

[0038] Figure 11 Schematic diagram of the structure of the driven wheel of the present invention;

[0039] Figure 12 This is a schematic diagram of the split structure of the driven wheel of the present invention;

[0040] Figure 13 This is a schematic structural diagram of the drum skeleton of the present invention;

[0041] Figure 14 This is a schematic diagram of the disassembled structure of the drum frame of the present invention;

[0042] Figure 15 This is a schematic diagram of the disassembled structure of the adjustment ring, rotating shaft, and movable ring of the present invention;

[0043] Figure 16 Schematic diagram of the structure of the adjustment ring of the present invention;

[0044] Figure 17 This is a schematic diagram of the installation structure of the compensation component of the present invention;

[0045] Figure 18 for Figure 17 Schematic diagram of the local enlarged structure at point B in the middle.

[0046] In the figure: 100, base plate; 101, driving wheel; 102, compensation wheel; 103, driven wheel; 104, grinding belt; 105, chip blower; 1051, air nozzle; 1052, fixed block; 1053, micro spring; 1054, top block; 1055, air hole; 106, compensation assembly; 1061, slide rail; 1062, wheel frame; 1063, fixed plate; 1064, spring; 1065, rib; 107, center shaft; 108, Drum frame; 109, elastic ring; 110, adjusting ring; 1101, claw; 111, rotating shaft; 112, adjusting frame; 113, left end block; 114, right end block; 115, fixed ring; 116, movable ring; 117, connecting ear; 118, connecting rod; 120, limiting slide rail; 121, extension plate; 122, first telescopic member; 123, second telescopic member; 124, adjusting slide groove; 125, slider; 200, control handle. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] Reference Figure 1-7 A multifunctional manual processing machine capable of continuous processing includes a base plate 100, which is fixedly mounted on a control handle 200. A driving wheel 101, a compensation wheel 102 and a driven wheel group are arranged on the base plate 100. A grinding belt 104 is tensionedly mounted on the periphery of the driving wheel 101, the compensation wheel 102 and the driven wheel group. Sandpaper is pasted on the outer surface of the grinding belt 104. The sandpaper can be updated and replaced before each use. A motor is installed in the control handle 200, which is transmission-connected to the driving wheel 101 for driving the driving wheel 101 to rotate, thereby driving the grinding belt 104 to circulate and realize continuous grinding. The control handle 200 can adopt the control handle of the existing angle grinder.

[0049] The driven wheel group is composed of a plurality of driven wheels 103. In the driven wheel group, the central axis 107 of one driven wheel 103 is fixedly mounted on the base plate 100. This driven wheel 103 is defined as a first driven wheel. A limiting slide rail 120 is fixedly mounted on one end of the base plate 100 away from the first driven wheel. An extension plate 121 is slidably mounted in the limiting slide rail 120. One end of the extension plate 121 extends out of the base plate 100, and the other end is connected to the first telescopic member 122. The extension plate 121 is driven by the first telescopic member 122 to slide along the limiting slide rail 120 (the first telescopic member 122 is an electric push rod); the central axis 107 of the other driven wheel 103 is fixedly mounted on the end of the extension plate 121 extending out of the base plate 100. This driven wheel 103 is defined as a second driven wheel. The extension plate 121 is driven to slide by the first telescopic member 122, so that the position of the second driven wheel can be adjusted, thereby adjusting the tension of the grinding belt 104.

[0050] The driven wheels 103 of the driven wheel group except the first driven wheel and the second driven wheel are all third driven wheels. The third driven wheel is arranged between the first driven wheel and the second driven wheel. An adjusting groove 124 is provided on the base plate 100. A slider 125 is slidably installed in the adjusting groove 124. The slider 125 is rotationally connected to one end of the second telescopic member 123, and the rotational connection is locked by a bolt. The other end of the second telescopic member 123 is fixedly connected to the central axis 107 of the third driven wheel.

[0051] The slider 125 slides along the adjusting slot 124, so that the position of the third driven wheel can be adjusted along the direction of the adjusting slot 124. By loosening the bolts at the rotational connection between the second telescopic member 123 and the slider 125, the installation angle of the second telescopic member 123 can be adjusted. Finally, through the telescopic movement of the second telescopic member 123 (the second telescopic member 123 is an electric push rod), the third driven wheel can move with multiple degrees of freedom in the horizontal plane to adapt to the polishing surfaces at different distribution positions.

[0052] It should be noted that the number of third driven wheels can be increased or decreased according to actual grinding requirements, and in each grinding operation, the redundant third driven wheels can be raised so that they do not contact the grinding belt 104, thereby preventing them from participating in the shaping and grinding of the grinding belt 104.

[0053] A pressure sensor is provided on the third driven wheel, which monitors the pressure between the grinding belt 104 and the grinding surface in real time. The second telescopic member 123 adjusts the extension amount according to the feedback from the pressure sensor. When the pressure is too high, the second telescopic member 123 shortens to reduce the pressure between the grinding belt 104 and the workpiece; when the pressure is too low, the second telescopic member 123 extends to increase the pressure between the grinding belt 104 and the workpiece to ensure uniform grinding.

[0054] A tension sensor is provided on the second driven wheel, which monitors the tension of the grinding belt 104 in real time. The first telescopic member 122 adjusts the extension amount according to the feedback of the tension sensor. When the tension is too large, the first telescopic member 122 shortens to reduce the tension of the grinding belt 104; when the tension is too small, the first telescopic member 122 extends to increase the tension of the grinding belt 104, thereby ensuring the stable operation of the grinding belt 104.

[0055] Reference Figure 1-18 Each driven wheel 103 includes a central shaft 107, a rotating drum frame 108, an elastic ring 109 and an adjusting ring 110. The rotating drum frame 108 is rotatably mounted on the central shaft 107 and can rotate freely. A plurality of elastic rings 109 (which can be made of elastic rubber) are provided. The elastic rings 109 are fixedly mounted on the outer side of the rotating drum frame 108 and contact with the grinding belt 104 to provide support for the grinding belt 104. The rotating drum frame 108 and the elastic rings 109 can rotate freely as a whole.

[0056] The drum skeleton 108 specifically includes a rotating shaft 111 and multiple adjustment skeletons 112. The rotating shaft 111 is mounted on the central shaft 107 and has a thread on its surface. The two ends of the rotating shaft 111 are respectively provided with a left end block 113 and a right end block 114, which play a limiting role. The adjustment ring 110 is mounted on the rotating shaft 111 and is threadedly connected to the rotating shaft 111.

[0057] When the adjusting ring 110 is rotated, the adjusting ring 110 will move along the thread on the rotating shaft 111, and the adjusting ring 110 will approach the left end block 113. The right end block 114 is fixedly installed on the side of the left end block 113. The fixed ring 115 is arranged with a plurality of connecting ears 117 in a circumferential array. The adjusting ring 110 is rotatably sleeved with a movable ring 116. The movable ring 116 is also arranged with a plurality of connecting ears 117 in an array in the circumference. The number of connecting ears 117 corresponds to the number of the adjusting skeleton 112. Two connecting rods 118 are provided on the adjusting skeleton 112. One end of the two connecting rods 118 is rotatably connected to the adjusting skeleton 112, and the other end is rotatably connected to the connecting ears 117 of the fixed ring 115 and the movable ring 116 respectively.

[0058] By rotating the adjusting ring 110, the adjusting ring 110 moves axially forward and backward along the rotating shaft 111, and the movable ring 116 moves accordingly, driving the adjusting skeleton 112 to radially expand or contract through the connecting rod 118, thereby adjusting the diameter of the drum skeleton 108. The elastic ring 109 is fixed to the outside of the adjusting skeleton 112 and deforms synchronously with the adjusting skeleton 112 to achieve stepless adjustment of the overall wheel diameter of the driven wheel 103.

[0059] A plurality of claws 1101 are fixedly installed on the side of the adjustment ring 110 facing the left end block 113. The inner circumferential size of the claws 1101 matches the outer circumferential size of the left end block 113, and is used to be clamped on the outer circumference of the left end block 113. At the same time, the axial length of the claws 1101 is adjustable. This design is because the adjustment ring 110 will move axially during rotation, so the axial length of the claws 1101 needs to be expanded and contracted accordingly. The claws 1101 protrude from the end face of the left end block 113, making it convenient for people to hold and rotate. People can synchronously rotate the adjustment ring 110 by rotating the claws 1101.

[0060] During the grinding operation, the grinding belt 104 between the first driven wheel and the second driven wheel is first placed on the grinding surface. By adjusting the sizes of all the driven wheels 103 and the position of the third driven wheel to adapt to the corners of different radii on the grinding surface, the grinding belt 104 is made to fit the undulating curve of the grinding surface (such as Figure 2 、 Figure 3 As shown), during this process, the first telescopic member 122 will always adjust its own telescopic amount according to the feedback of the tension sensor to ensure that the tension of the grinding belt 104 is appropriate.

[0061] It should be noted that the drum frame 108 and the central axis 107 are detachable and can be installed. According to different processing requirements, the drum frame 108 can be set to three specifications: small, medium and large. For example, the medium-sized drum frame 108 is set to a minimum diameter of 20mm and a maximum diameter of 50mm, which is suitable for grinding conventional planes and large curvature surfaces; the small drum frame 108 has a diameter adjustment range of 10-80mm, which is suitable for grinding various small corners with a radius of 5-40mm.

[0062] Reference Figure 6-9 A chip blowing tube 105 is installed at the end of each driven wheel 103. A fixed block 1052 and a micro spring 1053 are set on the outside of the chip blowing tube 105. A top block 1054 is provided on the top of the chip blowing tube 105, and an air nozzle 1051 is provided at the bottom. An air hole 1055 is provided on the top block 1054 for connecting an air supply pipe for supplying air to the air nozzle 1051; the top of the micro spring 1053 is fixedly connected to the top block 1054, and the bottom is fixedly connected to the fixed block 1052. The top block 1054 is magnetic, and an electromagnet is provided in the fixed block 1052.

[0063] In the initial state, the air nozzle 1051 of the chip blowing tube 105 is located on the inner side of the grinding belt 104 (not in contact with the grinding surface, so it will not interfere with the operation of the grinding belt 104). When the electromagnet in the fixed block 1052 is energized, it will generate magnetic attraction to the top block 1054, causing the air nozzle 1051 of the chip blowing tube 105 to move downward, close to the grinding surface, so as to perform the chip blowing operation; when the electromagnet is de-energized, under the action of the micro spring 1053, the chip blowing tube 105 moves up and resets.

[0064] The chip blowing pipe 105 on the end face of the first driven wheel and the second driven wheel has a fixed block 1052 fixedly mounted on the central axis 107, and the chip blowing pipe 105 is installed on the side close to the third driven wheel; the chip blowing pipe 105 on the end face of the third driven wheel has a fixed block 1052 fixedly mounted on the second telescopic member 123. During the grinding process, at regular intervals, the second telescopic member 123 will drive the third driven wheel to briefly lift the grinding belt 104. At the same time, the electromagnet in the fixed block 1052 is energized to adsorb the top block 1054, overcoming the elastic force of the micro spring 1053 to move the chip blowing pipe 105 downward, and spraying air into the gap between the grinding belt 104 and the grinding surface through the air nozzle 1051 to effectively remove processing debris.

[0065] It should be noted that the grinding belt 104 will be lifted only when the third driven wheel moves upward. Therefore, the grinding belt 104 lifts a section of the grinding belt 104 between the first driven wheel and the second driven wheel. The first driven wheel is fixedly installed, so the grinding belt 104 at the contact part of the first driven wheel will not be lifted (the second driven wheel can be lifted by the first telescopic member 122, but the chip blowing effect can be achieved by lifting the grinding belt 104 by the third driven wheel, so the second driven wheel does not need to move). The chip blowing tube 105 on the end faces of the first driven wheel and the second driven wheel is set on the side close to the third driven wheel, because the grinding belt 104 close to the third driven wheel side will be slightly lifted by the influence of the third driven wheel, so chip blowing can also be performed.

[0066] Soft magnetic strips (such as rubber magnets) that are magnetically attracted to each other are laid on the inner surface of the grinding belt 104 and the elastic ring 109 of the driven wheel 103. This can not only enhance the fit between the grinding belt 104 and the driven wheel 103 to prevent slipping during high-speed operation, but also lift the grinding belt 104 during the lifting and chip blowing stage while maintaining the stability of the grinding belt 104.

[0067] Reference Figure 17-18 The compensation wheel 102 is installed on the substrate 100 through the compensation component 106. The compensation component 106 includes a slide rail 1061, a wheel frame 1062 and a fixed plate 1063. The compensation wheel 102 is movably installed on the wheel frame 1062. The wheel frame 1062 is slidingly connected to the slide rail 1061. At the same time, the wheel frame 1062 is connected to the fixed plate 1063 through a spring 1064. The fixed plate 1063 is fixedly connected to the substrate 100, and the compensation wheel 102 is in contact with the grinding belt 104.

[0068] The spring 1064 provides elastic support, so that the compensation wheel 102 can adaptively adjust its position, ensuring that the grinding belt 104 is always in a tensioned state, achieving elastic tension, and in the lifting and chip blowing stage, since the displacement of the third driven wheel is very small, the compensation wheel 102 can compensate for this part of the displacement by adjusting its own position.

[0069] There are ribs 1065 on both sides of the compensation wheel 102 to clamp on both sides of the grinding belt 104 (the outer surface of the ribs 1065 is covered with a layer of elastic rubber layer). When the grinding belt 104 tends to deviate during operation, the ribs 1065 play a limiting role to prevent the grinding belt 104 from deviating, thereby ensuring stable grinding work.

[0070] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0071] The working steps of this application are as follows:

[0072] S1: According to the special-shaped curved surface and corner structure of the workpiece to be polished, the adjusting ring 110 is rotated by the claw 1101 to move on the rotating shaft 111, driving the movable ring 116 to move, and the adjusting skeleton 112 is radially expanded or contracted by the connecting rod 118, thereby adjusting the diameter of all the driven wheels 103 in the driven wheel group to adapt to corners of different radii; at the same time, the bolts at the rotation connection between the second telescopic member 123 and the slider 125 are loosened to adjust the installation angle of the second telescopic member 123. After the adjustment is completed, the bolts are tightened. The angle of the second telescopic member 123 is fixed, and then the third driven wheel moves with multiple degrees of freedom in the horizontal plane through the telescopic movement of the second telescopic member 123 and the sliding of the slider 125 along the adjusting groove 124, so that a section of the grinding belt 104 between the first driven wheel and the second driven wheel is attached to the grinding surface to ensure that the grinding belt 104 fits the undulating curve of the grinding surface; during this process, the first telescopic member 122 adjusts its own extension and contraction according to the feedback from the tension sensor on the second driven wheel to ensure that the tension of the grinding belt 104 is appropriate.

[0073] S2: Start the motor in the control handle 200, the motor drives the driving wheel 101 to rotate, and drives the grinding belt 104 to circulate, and the grinding operation begins.

[0074] S3: During the grinding process, the pressure sensor on the third driven wheel monitors the pressure between the grinding belt 104 and the grinding surface in real time, and the second telescopic member 123 adjusts the amount of extension and contraction according to the feedback from the pressure sensor. When the pressure is too large, the second telescopic member 123 shortens to reduce the pressure between the grinding belt 104 and the workpiece; when the pressure is too small, the second telescopic member 123 extends to increase the pressure between the grinding belt 104 and the workpiece to ensure uniform grinding. At the same time, the tension sensor on the second driven wheel monitors the tension of the grinding belt 104 in real time, and the first telescopic member 122 adjusts the amount of extension and contraction according to the feedback from the tension sensor to maintain the stability of the tension of the grinding belt 104.

[0075] S4: At regular intervals, the second telescopic member 123 drives the third driven wheel to briefly lift the grinding belt 104. Due to the magnetic attraction between the inner surface of the grinding belt 104 and the soft magnetic strips on the elastic ring 109 of the driven wheel 103, the grinding belt 104 is synchronously lifted with the driven wheel; at the same time, the electromagnet in the fixed block 1052 is energized to adsorb the top block 1054, overcoming the elastic force of the micro spring 1053 to move the chip blowing tube 105 downward, and spraying air into the gap between the grinding belt 104 and the grinding surface through the air nozzle 1051, effectively removing processing debris.

[0076] S5: Compensation wheel 102, elastically supported by spring 1064, adaptively adjusts its position to ensure the grinding belt 104 remains taut. Side ribs 1065 act as stoppers if the grinding belt 104 deviates during operation, ensuring stable grinding. During the chip-blowing stage, compensation wheel 102 adjusts its position to compensate for the displacement of the third driven wheel.

[0077] S6: After the grinding operation is completed, the motor is turned off and the movement of the grinding belt 104 is stopped.

[0078] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multifunctional manual processing machine capable of continuous processing, comprising a base plate (100) fixedly mounted on a control handle (200), characterized in that: A driving wheel (101), a compensating wheel (102), and a driven wheel group are arranged on the base plate (100); a grinding belt (104) is tensioned on the periphery of the driving wheel (101), the compensating wheel (102), and the driven wheel group; and sandpaper is pasted on the outer surface of the grinding belt (104); The driving wheel (101) is driven to rotate by a motor in the control handle (200), and the driven wheel group includes a plurality of driven wheels (103), wherein some of the driven wheels (103) are driven to adjust their positions by the second telescopic member (123), and each driven wheel (103) includes a central shaft (107), a rotating drum frame (108), an elastic ring (109) and an adjusting ring (110), wherein the rotating drum frame (108) is rotatably sleeved on the central shaft (107), the elastic ring (109) is fixedly sleeved on the outside of the rotating drum frame (108) and contacts the grinding belt (104), and the adjusting ring (110) is used to adjust the diameter of the rotating drum frame (108); The inner surface of the grinding belt (104) and the elastic ring (109) are provided with magnetically attracted soft magnetic strips, and a chip blowing pipe (105) is installed at the end of each driven wheel (103). During grinding intervals, the grinding belt (104) is temporarily lifted by moving the driven wheel (103), and the chip blowing pipe (105) is synchronously moved downward to blow away the chips. The rotating drum skeleton (108) includes a rotating shaft (111) and a plurality of adjusting skeletons (112). The rotating shaft (111) is sleeved on the central shaft (107). The surface of the rotating shaft (111) is provided with a thread. At the same time, the two ends of the rotating shaft (111) are respectively provided with a left end block (113) and a right end block (114). The adjusting ring (110) is sleeved on the rotating shaft (111) and is threadedly connected to the rotating shaft (111). The adjusting ring (110) is close to the left end block (113), and the right end block (114) is fixedly installed with a fixed ring (115) on one side facing the left end block (113). The fixed ring (115) is provided with a plurality of connecting lugs (117) arranged in a circumferential array. A movable ring (116) is rotatably mounted on the adjusting ring (110), and the movable ring (116) is also provided with a plurality of connecting lugs (117) arranged in a circumferential array. The number of the connecting lugs (117) corresponds to the number of the adjusting frame (112). The adjusting frame (112) is provided with two connecting rods (118), one end of the two connecting rods (118) is rotatably connected to the adjusting frame (112), and the other end is rotatably connected to the connecting lugs (117) of the fixed ring (115) and the movable ring (116), respectively. A plurality of claws (1101) are provided on one side of the adjustment ring (110) facing the left end block (113).

2. A multifunctional manual processing machine capable of continuous processing according to claim 1, characterized in that: A driven wheel (103) in the driven wheel group, whose central axis (107) is fixedly mounted on the base plate (100), and this driven wheel (103) is a first driven wheel; A limiting slide rail (120) is fixedly mounted on one end of the base plate (100) away from the first driven wheel, an extension plate (121) is slidably mounted in the limiting slide rail (120), one end of the extension plate (121) extends out of the base plate (100), and the other end is connected to the first telescopic member (122), and the extension plate (121) is driven by the first telescopic member (122) to slide along the limiting slide rail (120); A driven wheel (103) in the driven wheel group has a central axis (107) fixedly mounted on an end of the extension plate (121) extending out of the base plate (100), and this driven wheel (103) is a second driven wheel; All driven wheels (103) in the driven wheel group except the first driven wheel and the second driven wheel are third driven wheels, and the third driven wheel is arranged between the first driven wheel and the second driven wheel.

3. A multifunctional manual processing machine capable of continuous processing according to claim 2, characterized in that: An adjusting slot (124) is provided on the base plate (100), and a plurality of sliders (125) are slidably installed in the adjusting slot (124). Each slider (125) is rotationally connected to one end of a second telescopic member (123), and the rotational connection is locked by a bolt. The other end of the second telescopic member (123) is fixedly connected to the central axis (107) of the third driven wheel.

4. The multifunctional manual processing machine capable of continuous processing according to claim 3, characterized in that: The third driven wheel is provided with a pressure sensor, and the second telescopic member (123) adjusts its own telescopic amount according to feedback from the pressure sensor; The second driven wheel is provided with a tension sensor, and the first telescopic member (122) adjusts its own telescopic amount according to feedback from the tension sensor.

5. The multifunctional manual processing machine capable of continuous processing according to claim 4, characterized in that: A fixed block (1052) and a micro spring (1053) are sleeved on the outside of the chip blowing tube (105); a top block (1054) is provided on the top of the chip blowing tube (1055); and an air nozzle (1051) is provided on the bottom. An air hole (1055) is provided on the top block (1054) for connecting to an air supply pipe. The top of the micro spring (1053) is fixedly connected to a top block (1054), and the bottom is fixedly connected to a fixed block (1052). The top block (1054) is magnetic, and an electromagnet is provided in the fixed block (1052).

6. The multifunctional manual processing machine capable of continuous processing according to claim 5, characterized in that: The chip blowing pipe (105) on the end surface of the first driven wheel and the second driven wheel has a fixed block (1052) fixedly mounted on the central shaft (107), and the chip blowing pipe (105) is mounted on a side close to the third driven wheel; The chip blowing pipe (105) on the end surface of the third driven wheel has a fixed block (1052) fixedly mounted on the second telescopic member (123).

7. The multifunctional manual processing machine capable of continuous processing according to claim 6, characterized in that: The compensation wheel (102) is mounted on the base plate (100) via a compensation assembly (106). The compensation assembly (106) comprises a slide rail (1061), a wheel frame (1062) and a fixed plate (1063). The compensation wheel (102) is movably mounted on the wheel frame (1062). The wheel frame (1062) is slidably connected to the slide rail (1061). At the same time, the wheel frame (1062) is connected to the fixed plate (1063) via a spring (1064). The fixed plate (1063) is fixedly connected to the base plate (100).

8. The multifunctional manual processing machine capable of continuous processing according to claim 7, characterized in that: The compensation wheel (102) is in contact with the grinding belt (104), and ribs (1065) are provided on both sides of the compensation wheel (102) to be clamped on both sides of the grinding belt (104) to prevent the grinding belt (104) from deflecting.

Images