Multifunctional manual processing machine capable of continuously processing

Abstract

The invention discloses a multifunctional manual machining machine capable of continuously machining, and relates to the technical field of grinding and polishing, the multifunctional manual machining machine comprises a base plate fixedly mounted on a control handle, and a driving wheel, a compensation wheel and a driven wheel set are distributed on the base plate and used for tensioning a grinding belt; the driven wheel set comprises a plurality of driven wheels, each driven wheel comprises a center shaft, a rotary drum framework, an elastic ring and an adjusting ring, the rotary drum framework is rotationally arranged on the center shaft in a sleeving mode, the elastic ring is arranged on the outer side of the rotary drum framework in a sleeving mode and makes contact with the grinding belt, and the adjusting ring is used for adjusting the diameter of the rotary drum framework; scrap blowing pipes are installed at the ends of the driven wheels, grinding is intermittent, the grinding belt is temporarily lifted through part of the driven wheels, and scrap blowing is conducted in cooperation with downward movement of the scrap blowing pipes. By flexibly adjusting the diameters of all the driven wheels and the positions of part of the driven wheels, it is ensured that the polishing belt is attached to the curved surface fluctuation and the corner size, and continuous and efficient polishing is achieved; and meanwhile, the grinding belt is lifted regularly in the grinding process, and the scrap blowing pipe moves downwards to blow scraps.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and polishing, and particularly relates to a multi-functional manual processing machine capable of continuous processing. Background Art

[0002] Traditional manual grinding machines are difficult to adapt to the complex curved surfaces and corner structures of some special workpieces. Especially in the corner areas, the existing processing method is often to grind the smooth areas with a grinding machine first, and then leave the corner areas for workers to grind bit by bit with sandpaper. The grinding efficiency is low and the grinding quality is difficult to guarantee. At present, some grinding devices with rollers can, to a certain extent, fit the corners for grinding. However, the diameter of the rollers is fixed, and they cannot adapt to corners with different radii. Moreover, the overall structure has a poor fitting effect on irregular surfaces and is difficult to match the undulating forms of different curved surfaces. Problems such as uneven grinding, excessive grinding, or grinding blind spots are likely to occur during the grinding process. Therefore, it is necessary to design a grinding device that can better fit irregular curved surfaces and adapt to corners with different radii. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems proposed in the background art, and to provide a multi-functional manual processing machine capable of continuous processing.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A multi-functional manual processing machine capable of continuous processing, including a substrate fixedly installed on a control handle. A driving wheel, a compensation wheel, and a driven wheel set are arranged on the substrate. A grinding belt is tension-mounted on the outer circumferences of the driving wheel, the compensation wheel, and the driven wheel set, and sandpaper is pasted on the outer surface of the grinding belt. The driving wheel is driven to rotate by a motor inside the control handle. The driven wheel set includes multiple driven wheels, and some of the driven wheels are driven by a second telescopic member to adjust their positions. Each driven wheel includes a central shaft, a rotating cylinder frame, an elastic ring, and an adjusting ring. The rotating cylinder frame is rotatably sleeved on the central shaft, the elastic ring is fixedly sleeved on the outside of the rotating cylinder frame and contacts the grinding belt, and the adjusting ring is used to adjust the diameter of the rotating cylinder frame. Soft magnetic strips with magnetic attraction are provided on the inner surface of the grinding belt and on the elastic ring. A chip blowing pipe is installed at each end of each driven wheel. During the grinding interval, some of the driven wheels are moved to briefly lift the grinding belt, and at the same time, the chip blowing pipe moves down synchronously to blow chips.

[0005] As a further solution of the present invention: The rotating cylinder frame includes a rotating shaft and multiple adjusting frames. The rotating shaft is sleeved on the central shaft. Threads are provided on the surface of the rotating shaft, and a left end block and a right end block are respectively provided at both ends of the rotating shaft. The adjusting ring is sleeved on the rotating shaft and is threadedly connected to the rotating shaft. The adjusting ring is close to the left end block. A fixing ring is fixedly installed on the side of the right end block facing the left end block. A plurality of connecting lugs are arranged in a circumferential array on the fixing ring. An active ring is rotatably sleeved on the adjusting ring. A plurality of connecting lugs are also arranged in a circumferential array on the active ring. The number of the connecting lugs corresponds to the number of adjusting skeletons. Two connecting rods are provided on the adjusting skeleton. One ends of the two connecting rods are rotatably connected to the adjusting skeleton, and the other ends are respectively rotatably connected to the connecting lugs of the fixing ring and the active ring. A plurality of claw are provided on the side of the adjusting ring facing the left end block.

[0006] As a further scheme of the present invention: One of the driven wheels in the driven wheel group has its central axis fixedly installed on the substrate, and this driven wheel is the first driven wheel. A limiting slide rail is fixedly installed at one end of the substrate away from the first driven wheel. An extension plate is slidably installed in the limiting slide rail. One end of the extension plate extends out of the substrate, and the other end is connected to a first telescopic member. The extension plate is driven by the first telescopic member to slide along the limiting slide rail. One of the driven wheels in the driven wheel group has its central axis fixedly installed at the end of the extension plate extending out of the substrate, and this driven wheel is the second driven wheel. The driven wheels in the driven wheel group except the first driven wheel and the second driven wheel are all third driven wheels, and the third driven wheels are arranged between the first driven wheel and the second driven wheel.

[0007] As a further scheme of the present invention: An adjusting chute is provided on the substrate. A slider is slidably installed in the adjusting chute. The slider is rotatably connected to one end of a second telescopic member, and the rotating connection is locked by a bolt. The other end of the second telescopic member is fixedly connected to the central axis of the third driven wheel.

[0008] As a further scheme of the present invention: A pressure sensor is provided on the third driven wheel. The second telescopic member adjusts the telescopic amount according to the feedback of the pressure sensor. A tension sensor is provided on the second driven wheel. The first telescopic member adjusts the telescopic amount according to the feedback of the tension sensor.

[0009] As a further scheme of the present invention: A fixing block and a micro spring are sleeved outside the chip blowing pipe. A top block is provided at the top of the chip blowing pipe, and an air nozzle is provided at the bottom. An air hole is provided on the top block for connecting an air delivery pipe. The top of the micro spring is fixedly connected to the top block, and the bottom is fixedly connected to the fixing block. The top block has magnetism, and an electromagnet is provided in the fixing block.

[0010] As a further scheme of the present invention: For the chip blowing pipes on the end faces of the first driven wheel and the second driven wheel, the fixing blocks are fixedly installed on the central axis, and the chip blowing pipes are installed on the side close to the third driven wheel. The chip blowing pipe on the end face of the third driven wheel has its fixing block fixedly installed on the second telescopic member.

[0011] As a further solution of the present invention: The compensation wheel is installed on the substrate through a compensation assembly. The compensation assembly includes a slide rail, a wheel frame, and a fixing plate. The compensation wheel is movably installed on the wheel frame. The wheel frame is slidably connected to the slide rail. At the same time, the wheel frame is connected to the fixing plate through a spring, and the fixing plate is fixedly connected to the substrate.

[0012] As a further solution of the present invention: The compensation wheel contacts the grinding belt, and there are flanges on both sides of the compensation wheel to be stuck on both sides of the grinding belt to prevent the grinding belt from shifting.

[0013] Compared with the existing technology, the advantages of the present invention are as follows: 1: It can flexibly adjust the diameters of all the driven wheels in the driven wheel group according to different radius corners and undulating shapes on the curved surface, and adjust the positions of some of the third driven wheels, so as to ensure that the grinding belt is always in close contact with the grinding curved surface, realize continuous and efficient grinding of the special-shaped surface, and significantly improve the processing quality and efficiency.

[0014] 2: During the grinding process, at regular intervals, by moving the third driven wheel, the grinding belt is adsorbed to be briefly lifted, and at the same time, the chip blowing pipe moves downward synchronously to blow chips into the gap between the grinding belt and the grinding surface, effectively removing the processing debris, avoiding the influence of debris residue on the grinding effect, and ensuring the smooth progress of the grinding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram when the present invention grinds the curved surface; Figure 2 It is a front view structural diagram when the present invention grinds the curved surface; Figure 3 It is a front view structural diagram when the present invention grinds another curved surface; Figure 4 It is a schematic overall structure diagram of the present invention; Figure 5 It is a schematic overall structure diagram of the present invention from another angle; Figure 6 For Figure 5 The partial enlarged structural diagram at A in Figure 7 It is a schematic overall structure diagram of the present invention after removing the grinding belt; Figure 8 It is a schematic installation structure diagram of the third driven wheel and the chip blowing pipe of the present invention; Figure 9 It is a schematic installation structure diagram of the second driven wheel and the chip blowing pipe of the present invention; Figure 10 It is a schematic structural diagram of the chip blowing pipe of the present invention; Figure 11 Structural schematic diagram of the driven wheel of the present invention; Figure 12 Split structural schematic diagram of the driven wheel of the present invention; Figure 13 Structural schematic diagram of the rotating cylinder frame of the present invention; Figure 14 Split structural schematic diagram of the rotating cylinder frame of the present invention; Figure 15 Split structural schematic diagram of the adjusting ring, rotating shaft and movable ring of the present invention; Figure 16 Structural schematic diagram of the adjusting ring of the present invention; Figure 17 Installation structural schematic diagram of the compensation component of the present invention; Figure 18 is Figure 17 Partial enlarged structural schematic diagram at position B in

[0016] In the figure: 100, substrate; 101, driving wheel; 102, compensation wheel; 103, driven wheel; 104, grinding belt; 105, chip blowing pipe; 1051, air nozzle; 1052, fixing block; 1053, micro spring; 1054, top block; 1055, air hole; 106, compensation component; 1061, slide rail; 1062, wheel frame; 1063, fixing plate; 1064, spring; 1065, edge guard; 107, central axis; 108, rotating cylinder frame; 109, elastic ring; 110, adjusting ring; 1101, claw; 111, rotating shaft; 112, adjusting frame; 113, left end block; 114, right end block; 115, fixing ring; 116, movable ring; 117, connecting lug; 118, connecting rod; 120, limit slide rail; 121, extension plate; 122, first telescopic member; 123, second telescopic member; 124, adjusting chute; 125, slider; 200, control handle. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Refer to Figure 1-7A 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, and the sandpaper can be updated and replaced before each use. A motor is installed in the control handle 200, and the motor 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 angle grinder in the prior art.

[0019] The driven wheel group is composed of a plurality of driven wheels 103, among which the central axis 107 of one driven wheel 103 is fixedly mounted on the base plate 100, and this driven wheel 103 is defined as the 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, and 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 a 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 another driven wheel 103 is fixedly mounted on one end of the extension plate 121 extending out of the base plate 100, and this driven wheel 103 is defined as the second driven wheel. The first telescopic member 122 drives the extension plate 121 to slide, so as to adjust the position of the second driven wheel, and thereby adjust the tension of the grinding belt 104.

[0020] 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 bolts. The other end of the second telescopic member 123 is fixedly connected to the central axis 107 of the third driven wheel.

[0021] 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. 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. 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 grinding surfaces at different distribution positions.

[0022] It should be noted that the number of the third driven wheels can be increased or decreased according to the actual grinding requirements. In each grinding operation, the redundant third driven wheels can be lifted to a position where they do not contact the grinding belt 104, so that they do not participate in the shaping and grinding of the grinding belt 104.

[0023] A pressure sensor is provided on the third driven wheel. The pressure sensor monitors the pressure between the grinding belt 104 and the grinding surface in real time. The second telescopic member 123 adjusts the telescopic amount according to the feedback of 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, ensuring uniform grinding.

[0024] A tension sensor is provided on the second driven wheel. The tension sensor monitors the tension of the grinding belt 104 in real time. The first telescopic member 122 adjusts the telescopic amount according to the feedback of the tension sensor. When the tension is too high, the first telescopic member 122 shortens to reduce the tension of the grinding belt 104; when the tension is too low, the first telescopic member 122 extends to increase the tension of the grinding belt 104, ensuring the stable operation of the grinding belt 104.

[0025] Refer to Figure 1-18 , each driven wheel 103 includes a central shaft 107, a drum skeleton 108, an elastic ring 109 and an adjusting ring 110. The drum skeleton 108 is rotatably sleeved on the central shaft 107 and can rotate freely; a plurality of elastic rings 109 (which can be made of elastic rubber material) are provided. The elastic rings 109 are fixedly sleeved on the outside of the drum skeleton 108 and contact the grinding belt 104 to provide support for the grinding belt 104. The drum skeleton 108 and the elastic rings 109 can rotate freely as a whole; The drum skeleton 108 specifically includes a rotating shaft 111 and a plurality of adjusting skeletons 112. The rotating shaft 111 is sleeved on the central shaft 107 and has threads on its surface. Left end blocks 113 and right end blocks 114 are respectively provided at both ends of the rotating shaft 111 to play a limiting role. The adjusting ring 110 is sleeved on the rotating shaft 111 and is threadedly connected to the rotating shaft 111.

[0026] When the adjusting ring 110 is rotated, the adjusting ring 110 will move along the thread on the rotating shaft 111. The adjusting ring 110 approaches the left end block 113. A fixing ring 115 is fixedly installed on the side of the right end block 114 facing the left end block 113. A plurality of connecting lugs 117 are circumferentially arrayed on the fixing ring 115. A movable ring 116 is rotatably sleeved on the adjusting ring 110. A plurality of connecting lugs 117 are also circumferentially arrayed on the movable ring 116. The number of the connecting lugs 117 corresponds to the number of the adjusting skeletons 112. Two connecting rods 118 are provided on the adjusting skeleton 112. One ends of the two connecting rods 118 are rotatably connected to the adjusting skeleton 112, and the other ends are respectively rotatably connected to the connecting lugs 117 of the fixing ring 115 and the movable ring 116.

[0027] Rotate the adjustment ring 110. The adjustment ring 110 moves axially back and forth along the rotating shaft 111, and the movable ring 116 moves accordingly. The adjustment frame 112 is driven by the connecting rod 118 to expand or contract radially, so as to realize the adjustment of the diameter of the rotating cylinder frame 108. The elastic ring 109 is fixed on the outside of the adjustment frame 112 and deforms synchronously with the adjustment frame 112, realizing stepless adjustment of the overall wheel diameter of the driven wheel 103.

[0028] A plurality of claws 1101 are fixedly installed on one side of the adjustment ring 110 facing the left end block 113. The circumferential size inside the claws 1101 matches the outer circumferential size of the left end block 113 and is used to be stuck 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 should expand and contract accordingly. The claws 1101 protrude out of the end face of the left end block 113, which is convenient for people to hold and rotate. People can rotate the adjustment ring 110 synchronously by rotating the claws 1101.

[0029] When performing the grinding operation, first attach a section of the grinding belt 104 between the first driven wheel and the second driven wheel to the grinding surface. By adjusting the sizes of all the driven wheels 103 and the position of the third driven wheel, it is adapted to the corners with different radii on the grinding surface, so that the grinding belt 104 fits the undulating curve of the grinding surface (as Figure 2 、 Figure 3 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.

[0030] It should be noted that the rotating cylinder frame 108 and the central shaft 107 are detachably installed. According to different processing requirements, the rotating cylinder frame 108 can be set into three specification systems: small, medium, and large. For example, the medium rotating cylinder frame 108 is set with a minimum diameter of 20 mm and a maximum diameter of 50 mm, which is suitable for grinding of conventional planes and large-curvature curved surfaces; the diameter adjustment range of the small rotating cylinder frame 108 is 10 - 80 mm, which is suitable for grinding of various small corners with a radius of 5 - 40 mm.

[0031] Refer to Figure 6-9 , a chip blowing pipe 105 is installed at the end of each driven wheel 103. A fixing block 1052 and a micro spring 1053 are sleeved on the outside of the chip blowing pipe 105. A top block 1054 is provided at the top of the chip blowing pipe 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 delivery pipe to supply 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 fixing block 1052. The top block 1054 has magnetism, and an electromagnet is provided inside the fixing block 1052.

[0032] In the initial state, the nozzle 1051 of the chip blowing pipe 105 is located inside 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 magnetism to attract the top block 1054, causing the nozzle 1051 of the chip blowing pipe 105 to move downward and approach the grinding surface for chip blowing operation; when the electromagnet is de-energized, under the action of the micro spring 1053, the chip blowing pipe 105 moves upward to reset.

[0033] For the chip blowing pipe 105 on the end faces of the first driven wheel and the second driven wheel, its fixed block 1052 is fixedly installed on the central shaft 107, and the chip blowing pipe 105 is installed on the side close to the third driven wheel; for the chip blowing pipe 105 on the end face of the third driven wheel, its fixed block 1052 is fixedly installed 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 make the chip blowing pipe 105 move downward, and jet air through the nozzle 1051 into the gap between the grinding belt 104 and the grinding surface to effectively remove processing debris.

[0034] It should be noted that only when the third driven wheel moves upward can the grinding belt 104 be lifted. Therefore, the part of the grinding belt 104 lifted is the 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 fitting 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 through the third driven wheel, so the second driven wheel does not need to move). The chip blowing pipes 105 on the end faces of the first driven wheel and the second driven wheel are arranged on the side close to the third driven wheel because the grinding belt 104 on the side close to the third driven wheel will be slightly lifted under the influence of the third driven wheel, so chip blowing can also be carried out.

[0035] Soft magnetic strips (such as rubber magnets) with magnetic attraction are laid on the inner surface of the grinding belt 104 and the elastic ring 109 of the driven wheel 103, which can not only enhance the fitting degree between the grinding belt 104 and the driven wheel 103 to prevent slipping during high-speed rotation, but also lift the grinding belt 104 during the lifting and chip blowing stage while maintaining the stable shape of the grinding belt 104.

[0036] Refer to Figure 17-18 , the compensation wheel 102 is installed on the substrate 100 through the compensation assembly 106. The compensation assembly 106 includes a slide rail 1061, a wheel frame 1062 and a fixing plate 1063. The compensation wheel 102 is movably installed 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 fixing plate 1063 through a spring 1064, and the fixing plate 1063 is fixedly connected to the substrate 100. The compensation wheel 102 is in contact with the grinding belt 104.

[0037] The spring 1064 provides elastic support, enabling the compensation wheel 102 to adaptively adjust its position, ensuring that the grinding belt 104 is always in a tensioned state, achieving elastic tensioning. Moreover, during 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.

[0038] On both sides of the compensation wheel 102, there are retaining edges 1065 that are stuck on both sides of the grinding belt 104 (the outer surface of the retaining edge 1065 is coated with an elastic rubber layer). When the grinding belt 104 has a tendency to deviate during operation, the retaining edge 1065 plays a limiting role to prevent the grinding belt 104 from deviating and ensure the stable progress of the grinding work.

[0039] Further explanation, unless otherwise clearly specified and limited, the above fixed connection should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0040] The working steps of this application are as follows: S1: According to the special-shaped curved surface and corner structure of the workpiece to be ground, rotate the adjusting ring 110 through the claw 1101, so that it moves on the rotating shaft 111, drives the movable ring 116 to move, and radially expands or contracts the adjusting framework 112 through the connecting rod 118, thereby adjusting the diameters of all the driven wheels 103 in the driven wheel group to adapt to corners with different radii; at the same time, loosen the bolt at the rotating connection of the second telescopic member 123 and the slider 125, adjust the installation angle of the second telescopic member 123, and after the adjustment is completed, lock the bolt to fix the angle of the second telescopic member 123. Then, through the telescopic movement of the second telescopic member 123 and the sliding of the slider 125 along the adjusting chute 124, the third driven wheel moves with multiple degrees of freedom in the horizontal plane, and 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 undulating curve of the grinding belt 104 fits the grinding surface; during this process, the first telescopic member 122 adjusts its own telescopic amount according to the feedback of the tension sensor on the second driven wheel to ensure that the tension of the grinding belt 104 is appropriate. S2: Start the motor in the control handle 200, the motor drives the driving wheel 101 to rotate, drives the grinding belt 104 to move in a cycle, and starts the grinding operation. 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. The second telescopic member 123 adjusts the telescopic amount according to the feedback of 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, ensuring 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 telescopic amount according to the feedback of the tension sensor to maintain the stability of the tension of the grinding belt 104. S4: Every once in a while, the second telescopic member 123 drives the third driven wheel to briefly lift the grinding belt 104. Due to the action of the soft magnetic strip magnetically attracted to the elastic ring 109 of the driven wheel 103 on the inner surface of the grinding belt 104, the grinding belt 104 is lifted synchronously 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 pipe 105 downward, and jetting air through the air nozzle 1051 into the gap between the grinding belt 104 and the grinding surface to effectively remove the machining debris. S5: The compensating wheel 102 is elastically supported by the spring 1064 and adaptively adjusts its position to ensure that the grinding belt 104 is always in a tensioned state. When there is a tendency for the grinding belt 104 to shift during operation, the edge guards 1065 on both sides play a limiting role to ensure the stable progress of the grinding work. During the chip blowing and lifting stage, the compensating wheel 102 can compensate for the influence caused by the displacement of the third driven wheel by adjusting its own position. S6: After the grinding operation is completed, the motor is turned off to stop the movement of the grinding belt 104.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A multi-functional manual processing machine capable of continuous processing, comprising a substrate (100) fixedly installed on a control handle (200), characterized in that, A driving wheel (101), a compensating wheel (102) and a driven wheel set are arranged on the substrate (100). The driving wheel (101), the compensating wheel (102) and the outer periphery of the driven wheel set are tensioned with a grinding belt (104), 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 a control handle (200). The driven wheel set includes a plurality of driven wheels (103), and some of the driven wheels (103) are driven by a second telescopic member (123) to adjust their positions. At the same time, each driven wheel (103) includes a central shaft (107), a drum skeleton (108), an elastic ring (109) and an adjusting ring (110). The drum skeleton (108) is rotatably sleeved on the central shaft (107), the elastic ring (109) is fixedly sleeved on the outside of the drum skeleton (108) and contacts the grinding belt (104), and the adjusting ring (110) is used to adjust the diameter of the drum skeleton (108). Soft magnetic strips with magnetic attraction are arranged on the inner surface of the grinding belt (104) and the elastic ring (109). A chip blowing pipe (105) is installed at the end of each driven wheel (103). During the grinding interval, the grinding belt (104) is briefly lifted by moving some of the driven wheels (103), and at the same time, the chip blowing pipe (105) moves downward synchronously to blow chips.

2. A multifunctional manual processing machine capable of continuous processing according to claim 1, characterized in that: The 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 threads, and at the same time, a left end block (113) and a right end block (114) are respectively arranged at both ends of the rotating shaft (111). 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). A fixing ring (115) is fixedly installed on the side of the right end block (114) facing the left end block (113). A plurality of connecting lugs (117) are arranged in a circumferential array on the fixing ring (115). An activity ring (116) is rotatably sleeved on the adjusting ring (110), and a plurality of connecting lugs (117) are also arranged in a circumferential array on the activity ring (116). The number of the connecting lugs (117) corresponds to the number of the adjusting skeletons (112). Two connecting rods (118) are arranged on the adjusting skeleton (112). One ends of the two connecting rods (118) are rotatably connected to the adjusting skeleton (112), and the other ends are respectively rotatably connected to the connecting lugs (117) of the fixing ring (115) and the activity ring (116). A plurality of claws (1101) are arranged on the side of the adjusting ring (110) facing the left end block (113).

3. A multifunctional manual processing machine capable of continuous processing according to claim 2, characterized in that, For one of the driven wheels (103) in the driven wheel set, its central shaft (107) is fixedly installed on the substrate (100), and this driven wheel (103) is the first driven wheel. One end of the substrate (100) away from the first driven wheel is fixedly installed with a limit slide rail (120). An extension plate (121) is slidably installed in the limit slide rail (120). One end of the extension plate (121) extends out of the substrate (100), and the other end is connected to a first telescopic member (122). The extension plate (121) is driven by the first telescopic member (122) to slide along the limit slide rail (120). One of the driven wheels (103) in the driven wheel group has a central axis (107) fixedly installed at one end of the extension plate (121) extending out of the substrate (100). This driven wheel (103) is the second driven wheel. The driven wheels (103) in the driven wheel group except the first driven wheel and the second driven wheel are all third driven wheels. The third driven wheels are arranged between the first driven wheel and the second driven wheel.

4. A multifunctional manual processing machine capable of continuous processing according to claim 3, characterized in that, The substrate (100) is provided with an adjustment chute (124). A plurality of sliders (125) are slidably installed in the adjustment chute (124). Each slider (125) is rotatably connected to one end of a second telescopic member (123), and the rotation 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.

5. A multi-functional manual processing machine capable of continuous processing according to claim 4, characterized in that, A pressure sensor is provided on the third driven wheel. The second telescopic member (123) adjusts its own telescopic amount according to the feedback of the pressure sensor. A tension sensor is provided on the second driven wheel. The first telescopic member (122) adjusts its own telescopic amount according to the feedback of the tension sensor.

6. A multi-functional manual processing machine capable of continuous processing according to claim 5, characterized in that, A fixed block (1052) and a micro spring (1053) are sleeved outside the chip blowing pipe (105). A top block (1054) is provided at the top of the chip blowing pipe (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 delivery pipe. 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) has magnetism, and an electromagnet is provided in the fixed block (1052).

7. A multi-functional manually-operated processing machine capable of continuous processing according to claim 6, characterized in that, For the chip blowing pipes (105) on the end faces of the first driven wheel and the second driven wheel, the fixed blocks (1052) are fixedly installed on the central axis (107), and the chip blowing pipes (105) are installed on the side close to the third driven wheel. For the chip blowing pipe (105) on the end face of the third driven wheel, the fixed block (1052) is fixedly installed on the second telescopic member (123).

8. A multifunctional manual processing machine capable of continuous processing according to claim 7, characterized in that, The compensation wheel (102) is installed on the substrate (100) through a compensation assembly (106). The compensation assembly (106) includes a slide rail (1061), a wheel frame (1062) and a fixing plate (1063). The compensation wheel (102) is movably installed 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 fixing plate (1063) through a spring (1064). The fixing plate (1063) is fixedly connected to the substrate (100).

9. A multifunctional manual processing machine capable of continuous processing according to claim 8, characterized in that, The compensation wheel (102) is in contact with the grinding belt (104), and retaining edges (1065) are provided on both sides of the compensation wheel (102) and are stuck on both sides of the grinding belt (104) to prevent the grinding belt (104) from shifting.

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