Aluminum bar polishing device

Abstract

The invention discloses an aluminum bar polishing device, and particularly relates to the field of aluminum bar polishing, the aluminum bar polishing device comprises an abrasive paper fixing mechanism, a balance limiting mechanism is hinged to the top of the abrasive paper fixing mechanism, a tensioning mechanism is arranged in the abrasive paper fixing mechanism, bar limiting mechanisms are fixedly connected to the two sides of the tensioning mechanism, and the balance limiting mechanism comprises a fixing frame; first balance plates are fixedly mounted on the two sides of the fixing frame, the tensioning mechanism comprises a second connecting frame fixedly mounted at the bottom of the fixing frame, two guide rods are inserted into the second connecting frame, and a right-hand threaded rod and a left-hand threaded rod are rotationally mounted in the second connecting frame; by controlling the contact degree of abrasive particles on the lower surface of the flexible abrasive paper and the surface of the aluminum bar, a user can select to adjust the tension of the flexible abrasive paper in the polishing process, the device can be suitable for various polishing tasks, the polishing efficiency of the surface of the aluminum bar is improved, and the overall service life of the flexible abrasive paper is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum rod grinding, and more specifically, to an aluminum rod grinding device. Background Art

[0002] The main purpose of grinding aluminum bars is to improve their surface quality, remove oxide layers, impurities and uneven parts, make the surface smoother, so as to improve the aesthetics of the product and the adaptability of subsequent processing. Grinding can effectively improve the dimensional accuracy of the aluminum bars, ensure its bonding effect in subsequent welding, painting or other surface treatment processes, reduce processing defects, extend the service life of the product, and ensure that it meets the requirements of high quality standards.

[0003] At present, when grinding the outer surface of round rod materials, the tension of the sandpaper cannot be flexibly adjusted, resulting in the inability of flexible sandpaper to adjust the tension according to the grinding requirements, thereby affecting the contact accuracy between the abrasive particles on the sandpaper and the surface of the aluminum rod material, resulting in slow grinding speed and uneven surface treatment. In addition, the surface of the aluminum rod material is easily damaged due to excessive wear during the grinding process, and it cannot adapt to a variety of grinding tasks. In addition, the sandpaper wears unevenly, which reduces the service life of the sandpaper. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an aluminum rod grinding device, which drives two pressure rods connected to the sandpaper fixing mechanism to displace by arranging a positive threaded rod and a reverse threaded rod, so as to synchronously realize the function of adjusting the tightness of the flexible sandpaper, thereby controlling the degree of contact between the abrasive particles on the lower surface of the flexible sandpaper and the surface of the aluminum rod, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: an aluminum rod grinding device, comprising a sandpaper fixing mechanism, the top of which is hinged with a balancing limit mechanism; A tensioning mechanism is provided inside the sandpaper fixing mechanism, and rod limiting mechanisms are fixedly connected to both sides of the tensioning mechanism; The balancing limit mechanism includes a fixed frame, a first balancing plate is fixedly installed on both sides of the fixed frame, the tensioning mechanism includes a second connecting frame fixedly installed on the bottom of the fixed frame, two guide rods are inserted inside the second connecting frame, a positive thread rod and a negative thread rod are rotatably installed inside the second connecting frame, the positive thread rod and the negative thread rod are arranged in a fixed connection state, the outer walls of the positive thread rod and the negative thread rod are threadedly connected with an internal thread slide slidably connected to the guide rod, and a pressure rod fixedly connected to the sandpaper fixing mechanism is fixedly installed inside the internal thread slide.

[0006] In a preferred embodiment, the sandpaper fixing mechanism includes two supports respectively arranged at the bottom of two first balance plates, and the tops of the two supports are equipped with first supporting plates in a horizontal sliding state, and one side of the first supporting plate is fixedly equipped with a first connecting frame fixedly connected to the pressure rod.

[0007] In a preferred embodiment, a second guide groove slidably connected to the guide rod is provided inside the first supporting plate, and the second guide groove is slidably connected to the first connecting frame, the number of the positive thread rod and the negative thread rod are both set to two, the two positive thread rods and the negative thread rods are symmetrically arranged about the horizontal center line of the second connecting frame, and the first gear is fixedly installed at the connection between the two positive thread rods and the negative thread rods, and the outer walls of the two first gears are meshed with the first synchronous belt.

[0008] In a preferred embodiment, the bottoms of the two first supporting plates are provided with a guide groove 1 arranged in a slope shape, a second supporting plate is movably mounted on the top of the first supporting plate, a first clamping tooth is fixedly mounted on the top of the first supporting plate, a second clamping tooth fixedly connected to the second supporting plate is clamped on the top of the first clamping tooth, and a driving component for driving the second supporting plate to be tilted and adjusted is slidably mounted on the top of the first supporting plate; The length of the guide groove 1 is half of the length of the first supporting plate, and a plurality of rollers are rotatably mounted on the outer wall of the pressure rod.

[0009] In a preferred embodiment, a movable groove in a through-shaped arrangement is provided inside the second supporting plate, the inner cavity of the movable groove is provided with a positioning bolt fixedly connected to the first supporting plate, the top and bottom of the movable groove are provided with conical pads fixedly connected to the positioning bolt, and a telescopic spring fixedly connected to the conical pad is fixedly installed on the top of the first supporting plate.

[0010] In a preferred embodiment, a second balance plate is slidably mounted on one side of the first balance plate, an air cylinder is fixedly mounted on the bottom of the second balance plate, and a third piston rod hinged to the second supporting plate is inserted into the inner cavity of the air cylinder in an up and down sliding state.

[0011] In a preferred embodiment, a first gas chamber is provided inside the second supporting plate, and a first piston rod fixedly connected to the inclined block is slidably mounted in the inner cavity of the first gas chamber; A hose is provided inside the second supporting plate, an air collecting pipe connected to the hose is fixedly installed on the top of the first supporting plate, a second air bin connected to the air collecting pipe is opened inside the first supporting plate, and a second piston rod extending into the guide groove is inserted inside the second air bin.

[0012] In a preferred embodiment, the driving assembly includes a slide groove opened on the top of the first supporting plate, an inclined block is slidably installed on the top of the slide groove, and a moving roller rotatably connected to the second supporting plate is slidably installed on the top of the inclined block; A push rod arranged in a horizontal state is fixedly connected to one side of the inclined block, a tooth plate is fixedly installed on the top of the push rod, and an electric gear plate which is rotatably connected to the first connecting frame is meshed on the top of the tooth plate.

[0013] In a preferred embodiment, the rod limiting mechanism includes a first bracket fixedly mounted on both sides of the second connecting frame, one side of each of the first brackets is fixedly connected to a second bracket perpendicular thereto, one side of the second bracket is rotatably mounted with a first guide frame and a second guide frame, the first guide frame and the second guide frame are arranged in a hinged state with each other, one side of the first guide frame and the second guide frame are fixedly mounted with a hollow plate, and an adjustment component for driving the first guide frame and the second guide frame to perform synchronous deflection is provided between the first guide frame and the second guide frame.

[0014] In a preferred embodiment, the adjustment assembly includes a rotating rod fixedly mounted on one side of the second bracket, the bottom of the rotating rod is fixedly connected to a ball threaded rod, the outer wall of the ball threaded rod is threadedly connected to a threaded sleeve, and the outer wall of the threaded sleeve is hinged to two third guide frames respectively hinged to the first guide frame and the second guide frame; The tops of the two rotating rods are fixedly connected with a second gear, and the outer walls of the two second gears are meshed with a second synchronous belt.

[0015] Technical effects and advantages of the present invention: 1. The present invention drives two pressure rods connected to the sandpaper fixing mechanism to move by setting a positive thread rod and a reverse thread rod to synchronously realize the adjustment function of the tightness of the flexible sandpaper, thereby controlling the degree of contact between the abrasive grains on the lower surface of the flexible sandpaper and the surface of the aluminum rod, so that the user can choose to increase the tension during the grinding process to expose more abrasive grains and quickly grind the rough surface of the aluminum rod. Reducing the tension is suitable for more delicate polishing and prevents excessive wear of the aluminum rod surface. The device can be applied to a variety of grinding tasks, improves the grinding efficiency of the aluminum rod surface and prolongs the overall life of the flexible sandpaper; 2. The present invention provides a first guide frame and a second guide frame that can be deflected and adjusted synchronously, so that the two hollow plates can adjust the angle to adapt to aluminum bars of different diameters, so that the aluminum bar remains stable during the grinding process, and ensures that the outer surface of the aluminum bar can fully contact with the flexible sandpaper, which not only prevents the displacement of the aluminum bar during the grinding process, but also ensures the contact uniformity of the entire grinding surface, thereby improving the accuracy and effect of the outer surface grinding; 3. The present invention allows the gas inside the first gas chamber to be squeezed into the inner cavity of the second gas chamber through a hose, pushing the second piston rod to generate downward pressure, so that the flexible sandpaper is pressed more tightly at the clamping part of the guide groove 1. It not only relies on the initial clamping and fixing of the sandpaper by the first clamping teeth and the second clamping teeth, but also enhances the overall clamping stability through the downward pressure of the second piston rod, effectively preventing the sandpaper from loosening or slipping due to tension changes or vibrations during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the axial side structure of the present invention.

[0018] Figure 3 It is a side sectional view of the local structure of the sandpaper fixing mechanism and the balance limiting mechanism of the present invention.

[0019] Figure 4 For the present invention Figure 3 A-section structure enlarged view.

[0020] Figure 5 For the present invention Figure 3 Enlarged view of the structure of part B.

[0021] Figure 6 It is a partial structural sectional view of the sandpaper fixing mechanism and the tensioning mechanism of the present invention.

[0022] Figure 7 For the present invention Figure 6 Enlarged view of the C structure.

[0023] Figure 8 It is a partial structural schematic diagram of the rod limiting mechanism of the present invention.

[0024] Fig. 9 For the present invention Figure 8 Enlarged view of the D structure.

[0025] Fig.10 For the present invention Figure 8 Enlarged view of the E part structure.

[0026] The accompanying drawings are marked as follows: 1 sandpaper fixing mechanism, 101 support platform, 102 first supporting plate, 103 guide groove 1, 104 first clamping tooth, 105 second clamping tooth, 106 second supporting plate, 107 movable groove, 108 positioning bolt, 109 conical pad, 110 telescopic spring, 111 slide groove, 112 inclined block, 113 moving roller, 114 push rod, 115 tooth plate, 116 first connecting frame, 117 electric gear plate, 118 first air chamber, 119 first piston rod, 120 hose, 121 air collecting pipe, 122 second air chamber, 123 second piston rod, 2 balance limit mechanism, 2 1 fixed frame, 22 first balance plate, 23 second balance plate, 24 air cylinder, 25 third piston rod, 3 tensioning mechanism, 31 second connection frame, 32 guide rod, 33 positive thread rod, 34 reverse thread rod, 35 internal thread slide, 36 pressure rod, 37 roller, 38 second guide groove, 39 first gear, 310 first synchronous belt, 4 bar limiting mechanism, 41 first bracket, 42 second bracket, 43 first guide frame, 44 second guide frame, 45 hollow plate, 46 rotating rod, 47 ball thread rod, 48 threaded sleeve, 49 third guide frame, 410 second gear, 411 second synchronous belt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] Refer to the instruction manual Figure 1-10 , an aluminum rod grinding device according to an embodiment of the present invention, such as Figure 1-2 As shown, it includes a sandpaper fixing mechanism 1, and a balance limiting mechanism 2 is hinged on the top of the sandpaper fixing mechanism 1; A tensioning mechanism 3 is provided inside the sandpaper fixing mechanism 1, and rod limiting mechanisms 4 are fixedly connected to both sides of the tensioning mechanism 3; Reference Figure 8-9 As shown, the balancing limit mechanism 2 includes a fixing frame 21, and the first balancing plates 22 are fixedly installed on both sides of the fixing frame 21. The tensioning mechanism 3 includes a second connecting frame 31 fixedly installed at the bottom of the fixing frame 21. Two guide rods 32 are inserted in the interior of the second connecting frame 31. A positive threaded rod 33 and a reverse threaded rod 34 are rotatably installed in the interior of the second connecting frame 31. The positive threaded rod 33 and the reverse threaded rod 34 are fixedly connected to each other. Figure 6-7As shown, the outer walls of the positive thread rod 33 and the reverse thread rod 34 are both threadedly connected with an internal thread slide 35 slidably connected to the guide rod 32, and the inner part of the internal thread slide 35 is fixedly installed with a pressure rod 36 fixedly connected to the sandpaper fixing mechanism 1. The pressure rod 36 is synchronously slidably installed on the outer walls of the guide rod 32 and the positive thread rod 33. In actual use, the sandpaper fixing mechanism 1 fixes and limits the two sides of the sandpaper, and the pressure rod 36 fits the upper surface position of the center part of the flexible sandpaper. When the positive thread rod 33 and the reverse thread rod 34 are rotated, the two internal thread slides 35 arranged on the outer walls of the positive thread rod 33 and the reverse thread rod 34 can be synchronously displaced in the opposite direction, thereby driving the corresponding pressure rod 36 to move on the upper surface of the flexible sandpaper, and driving the sandpaper fixing mechanism 1 as a whole to pull the flexible sandpaper to stretch and adjust the tightness of the flexible sandpaper. The purpose of such arrangement is that when the distance between the two pressure rods 36 is synchronously displaced away, the sandpaper fixing mechanism 1 pulls the flexible sandpaper as a whole to stretch it, so that the tension of the flexible sandpaper is increased, thereby increasing the protrusion of the abrasive grains on the lower surface of the flexible sandpaper, and then exposing most of the abrasive grains to grind the outer circumferential surface of the aluminum rod. At this time, the cutting force of the abrasive grains is relatively high, which can be used to remove the surface layer of the aluminum rod over a large area, and is more suitable for rough grinding. On the contrary, when the distance between the two pressure rods 36 is reduced, the flexible sandpaper can be The tension is reduced, and the abrasive grains protrude less at this time, and the contact area and cutting depth with the outer surface of the aluminum rod are reduced, thereby preventing excessive damage to the grinding surface and obtaining a smoother surface for fine grinding. As a result, a piece of flexible sandpaper can be adapted to a variety of grinding tasks from coarse grinding to fine polishing, thereby improving the grinding efficiency and surface quality of the aluminum rod surface. By adjusting the tension of the flexible sandpaper, the use frequency of the abrasive grains can be evenly distributed, avoiding excessive wear or shedding of local abrasive grains, and extending the overall life of the flexible sandpaper.

[0029] As a further extension of this scheme, refer to Figure 3 As shown, the sandpaper fixing mechanism 1 includes two brackets 101 respectively arranged at the bottom of the two first balance plates 22, and the tops of the two brackets 101 are both installed with first supporting plates 102 in a horizontal sliding state, and one side of the first supporting plate 102 is fixedly installed with a first connecting frame 116 fixedly connected to the pressure rod 36. In actual use, by driving the positive thread rod 33 and the reverse thread rod 34 to rotate, the internal thread slide 35 can drive the pressure rod 36 and the first connecting frame 116 to make the first supporting plate 102 slide as a whole on the top of the bracket 101; Further, combined with Figure 7As shown, the first supporting plate 102 is provided with a second guide groove 38 slidably connected to the guide rod 32, and the second guide groove 38 is set in a sliding connection state with the first connecting frame 116. When the guide rod 32 is rotated and the internal threaded slide 35 drives the pressure rod 36, the first connecting frame 116 and the first supporting plate 102 to move as a whole, the first supporting plate 102 slides as a whole on the outer wall of the guide rod 32 for directional translation through the setting of the second guide groove 38, and one end of the positive thread rod 33 is fixedly connected to a motor for driving it to rotate, refer to Fig. 9 As shown, the number of the positive threaded rods 33 and the negative threaded rods 34 is set to two, and the two positive threaded rods 33 and the negative threaded rods 34 are symmetrically arranged about the horizontal center line of the second connecting frame 31, and the connection between the two positive threaded rods 33 and the negative threaded rods 34 is fixedly installed with a first gear 39, and the outer walls of the two first gears 39 are meshed with a first synchronous belt 310. In actual use, one positive threaded rod 33 is rotated, and by combining the settings of the first gear 39 and the first synchronous belt 310, the two positive threaded rods 33 and the negative threaded rods 34 are rotated synchronously as a whole, and then the internal threaded slide 35 arranged on the outer walls of the two positive threaded rods 33 and the negative threaded rods 34 are driven to synchronously drive the first connecting frame 116 and the first supporting plate 102 to translate and adjust as a whole.

[0030] Further, combined with Figure 4 As shown, the bottoms of the two first supporting plates 102 are provided with a guide groove 103 arranged in a slope shape, the top of the first supporting plate 102 is movably mounted with a second supporting plate 106, the top of the first supporting plate 102 is fixedly mounted with a first clamping tooth 104, the top of the first clamping tooth 104 is clamped with a second clamping tooth 105 fixedly connected to the second supporting plate 106, in actual use, the two ends of the flexible sandpaper respectively pass through the guide groove 103, and go around to the top of the first supporting plate 102, so that the second supporting plate 106 is produced The downward tilting pressure is generated, so that the first clamping teeth 104 and the second clamping teeth 105 are mutually matched and clamped together, so that one end of the flexible sandpaper is clamped and limited by the mutually clamped first clamping teeth 104 and the second clamping teeth 105 to keep the clamping of the two ends of the sandpaper stable, so that when the distance between the two pressure rods 36 is adjusted, the flexible sandpaper fixed and limited on both sides will not be loosened and fall off. At the same time, a driving component for driving the second supporting plate 106 to be tilted and adjusted is slidably installed on the top of the first supporting plate 102; Among them, the length of the guide groove 103 is half of the length of the first supporting plate 102. The purpose of this setting is that when the flexible sandpaper passes through the guide groove 103, the other part of the flexible sandpaper can be limited and leveled by the bottom of the first supporting plate 102, so that it fits on the bottom of the first supporting plate 102 and maintains a straight state. At the same time, the outer wall of the pressure rod 36 is rotatably installed with multiple rollers 37, so that when the flexible sandpaper is tightened, the rollers 37 assist the pressure rod 36 to move smoothly on the upper surface of the flexible sandpaper, so that the middle part of the flexible sandpaper is evenly stressed, and at the same time, the flatness of the abrasive surface of the lower surface of the flexible sandpaper is maintained, so that it is more flat and uniform when in contact with the outer circumferential surface of the rod, thereby improving the uniformity of grinding the outer wall of the aluminum rod; At the same time, combined Figure 4-5 As shown, the interior of the second supporting plate 106 is provided with a movable groove 107 arranged in a through shape, the inner cavity of the movable groove 107 is provided with a positioning bolt 108 fixedly connected to the first supporting plate 102, the top and bottom of the movable groove 107 are provided with a conical pad 109 fixedly connected to the positioning bolt 108, and the top of the first supporting plate 102 is fixedly installed with a telescopic spring 110 fixedly connected to the conical pad 109. The purpose of such a setting is that when the second supporting plate 106 is tilted and adjusted, the second supporting plate 106 can move in the inner cavity of the movable groove 107 and deflect and adjust along the inclined surface of the conical pad 109, so as to maintain the supporting stable state of the second supporting plate 106 during adjustment; At the same time, refer to Figure 8 and Figure 4-5 As shown, a second balancing plate 23 is slidably mounted on one side of the first balancing plate 22, and an air cylinder 24 is fixedly mounted on the bottom of the second balancing plate 23. The inner cavity of the air cylinder 24 is inserted with a third piston rod 25 hinged to the second supporting plate 106 in an up and down sliding state. The purpose of such a setting is that, under normal conditions, the two second supporting plates 106 are kept in a horizontal state on the top of the first supporting plate 102 by the fixing frame 21, the first balancing plate 22 and the second balancing plate 23. When the driving assembly is started to work and the second supporting plate 106 is tilted and deflected, the third piston rod 25 hinged to the second supporting plate 106 can be forced to move toward the inner cavity of the air cylinder 24, thereby assisting in limiting the second supporting plate 106 again, and at the same time ensuring that the two second supporting plates 106 and the first supporting plate 102 as a whole can remain stable under different adjustment states.

[0031] At the same time, a first gas chamber 118 is provided inside the second supporting plate 106, and a first piston rod 119 fixedly connected to the inclined block 112 is slidably installed in the inner cavity of the first gas chamber 118. When the inclined block 112 is displaced by force, the first piston rod 119 can be synchronously pushed to move in the inner cavity of the first gas chamber 118. In addition, a hose 120 is provided inside the second supporting plate 106, and a gas collecting pipe 121 connected to the hose 120 is fixedly installed on the top of the first supporting plate 102. A second gas chamber 122 connected to the gas collecting pipe 121 is provided inside the first supporting plate 102, and an extension plug is inserted inside the second gas chamber 122. The second piston rod 123 enters the guide groove 103. When the first piston rod 119 moves in the inner cavity of the first gas chamber 118, the gas in the inner cavity of the first gas chamber 118 is simultaneously squeezed to the inner cavity of the second gas chamber 122 through the hose 120, so that the second piston rod 123 is forced to generate downward pressure and move to the bottom of the first supporting plate 102, thereby pressing and limiting the top of the flexible sandpaper passing through the guide groove 103, so as to perform double positioning and fixing of the flexible sandpaper, enhance the overall gripping force of the sandpaper fixing mechanism 1 on the flexible sandpaper, and ensure that the flexible sandpaper is fixed more firmly and will not slip during the grinding process.

[0032] Further, see Figure 4-5 As shown, the driving assembly includes a slide groove 111 opened on the top of the first supporting plate 102, and an inclined block 112 is slidably installed on the top of the slide groove 111. A moving roller 113 rotatably connected to the second supporting plate 106 is slidably installed on the top of the inclined block 112. Under normal conditions, the moving roller 113 moves to the lowest position on the upper surface of the inclined block 112. At this time, the first supporting plate 102 and the second supporting plate 106 remain parallel. When the inclined block 112 is pushed to move in the inner cavity of the slide groove 111 toward the positioning bolt 108, as the moving roller 113 gradually moves to the higher position of the inclined block 112, the second supporting plate 106 can be tilted and deflected as a whole, and then a downward pressure is generated at the second clamping tooth 105 to engage with the top of the first clamping tooth 104; At the same time, a push rod 114 arranged in a horizontal state is fixedly connected to one side of the inclined block 112, and a tooth plate 115 is fixedly installed on the top of the push rod 114. The top of the tooth plate 115 is meshed with an electric gear plate 117 rotatably connected to the first connecting frame 116. In actual use, by starting the electric gear plate 117 to rotate, the tooth plate 115 meshed with it can be translated on its outer wall, so that the push rod 114 pushes the inclined block 112 to slide inside the slide groove 111, so as to achieve the effect of driving the second support plate 106 to deflect and adjust.

[0033] As a further extension of this scheme, refer to Figure 8-10As shown, the bar limiting mechanism 4 includes a first bracket 41 fixedly installed on both sides of the second connecting frame 31, one side of the two first brackets 41 is fixedly connected to a second bracket 42 perpendicular thereto, one side of the second bracket 42 is rotatably installed with a first guide frame 43 and a second guide frame 44, the first guide frame 43 and the second guide frame 44 are arranged in a mutually hinged state, and one side of the first guide frame 43 and the second guide frame 44 is fixedly installed with a hollow plate 45. In actual use, the first guide frame 43 and the second guide frame 44 are spliced ​​in a V-shaped state in combination with the hollow plate 45 and are arranged on the second connecting frame 31 At the bottom, the aluminum rod to be polished is placed between two hollow plates 45, and an adjustment component for driving the first guide frame 43 and the second guide frame 44 to deflect synchronously is provided between the first guide frame 43 and the second guide frame 44. In actual use, the first guide frame 43 and the second guide frame 44 are deflected by the adjustment component, so that the inclination angle and distance of the two hollow plates 45 arranged on one side of the first guide frame 43 and the second guide frame 44 can be changed, so that aluminum rods of different sizes can be stably placed between the two hollow plates 45, and the outer surfaces of aluminum rods of different sizes can fit with the lower surface of the flexible sandpaper.

[0034] Furthermore, the adjustment component includes a rotating rod 46 fixedly mounted on one side of the second bracket 42, a ball threaded rod 47 fixedly connected to the bottom of the rotating rod 46, a threaded sleeve 48 threadedly connected to the outer wall of the ball threaded rod 47, and an outer wall of the threaded sleeve 48 is hinged to two third guide frames 49 respectively hinged to the first guide frame 43 and the second guide frame 44. When in use, by starting the rotating rod 46 to rotate, the ball threaded rod 47 can be rotated synchronously, and then the threaded sleeve 48 can be moved up and down on its outer wall, so that the inclination angles of the two third guide frames 49 can be synchronously deflected and adjusted, so that the first guide frame 43 and the second guide frame 44 are synchronously deflected around the connection with the second bracket 42, so that the angle between the first guide frame 43 and the second guide frame 44 changes, and then the The distance angle between the two hollow plates 45 changes synchronously. When the angle between the two hollow plates 45 decreases, the distance between the two hollow plates 45 is close, which is suitable for limiting the aluminum rod with a thinner outer diameter. Conversely, when the angle between the two hollow plates 45 increases, the distance between the two hollow plates 45 increases synchronously, which is suitable for limiting the aluminum rod with a thicker outer diameter. At the same time, the tops of the two rotating rods 46 are fixedly connected to the second gear 410, and the outer walls of the two second gears 410 are meshed with the second synchronous belt 411. The purpose of this arrangement is to enable the adjustment components on both sides of the hollow plate 45 to synchronously adjust the angle between the first guide frame 43 and the second guide frame 44, so that the overall adjustment work of the hollow plate 45 is more stable, making the practicality of the device stronger.

[0035] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aluminum rod grinding device, comprising a sandpaper fixing mechanism (1), wherein a balancing limit mechanism (2) is hingedly connected to the top of the sandpaper fixing mechanism (1); Features: A tensioning mechanism (3) is provided inside the sandpaper fixing mechanism (1), and rod limiting mechanisms (4) are fixedly connected to both sides of the tensioning mechanism (3); The balancing limit mechanism (2) comprises a fixing frame (21), and first balancing plates (22) are fixedly mounted on both sides of the fixing frame (21). The tensioning mechanism (3) comprises a second connecting frame (31) fixedly mounted on the bottom of the fixing frame (21), and two guide rods (32) are inserted into the interior of the second connecting frame (31). A positive threaded rod (33) and a reverse threaded rod (34) are rotatably mounted inside the second connecting frame (31), and the positive threaded rod (33) and the reverse threaded rod (34) are arranged in a fixed connection state. The outer walls of the positive threaded rod (33) and the reverse threaded rod (34) are both threadedly connected to an internal threaded slide (35) slidably connected to the guide rod (32), and a pressure rod (36) fixedly connected to the sandpaper fixing mechanism (1) is fixedly mounted inside the internal threaded slide (35).

2. The aluminum rod grinding device according to claim 1, characterized in that: The sandpaper fixing mechanism (1) comprises two support platforms (101) respectively arranged at the bottom of two first balancing plates (22), the tops of the two support platforms (101) being mounted with first supporting plates (102) in a horizontal sliding state, and one side of the first supporting plate (102) being fixedly mounted with a first connecting frame (116) fixedly connected to the pressure rod (36).

3. The aluminum rod grinding device according to claim 2, characterized in that: A second guide groove (38) slidably connected to the guide rod (32) is provided inside the first supporting plate (102), and the second guide groove (38) is slidably connected to the first connecting frame (116). The number of the positive threaded rod (33) and the reverse threaded rod (34) is set to two, and the two positive threaded rods (33) and the reverse threaded rods (34) are symmetrically arranged about the horizontal center line of the second connecting frame (31), and the connection between the two positive threaded rods (33) and the reverse threaded rods (34) is fixedly installed with a first gear (39), and the outer walls of the two first gears (39) are meshed with a first synchronous belt (310).

4. The aluminum rod grinding device according to claim 3, characterized in that: The bottoms of the two first supporting plates (102) are provided with a guide groove (103) arranged in a slope shape; a second supporting plate (106) is movably mounted on the top of the first supporting plate (102); a first clamping tooth (104) is fixedly mounted on the top of the first supporting plate (102); a second clamping tooth (105) fixedly connected to the second supporting plate (106) is clamped on the top of the first clamping tooth (104); and a driving component for driving the second supporting plate (106) to be tilted and adjusted is slidably mounted on the top of the first supporting plate (102); The length of the first guide groove (103) is half the length of the first supporting plate (102), and a plurality of rollers (37) are rotatably mounted on the outer wall of the pressure rod (36).

5. The aluminum rod grinding device according to claim 4, characterized in that: The second supporting plate (106) has a movable groove (107) arranged in a through shape inside, the inner cavity of the movable groove (107) is provided with a positioning bolt (108) fixedly connected to the first supporting plate (102), the top and bottom of the movable groove (107) are provided with a conical pad (109) fixedly connected to the positioning bolt (108), and the top of the first supporting plate (102) is fixedly installed with a telescopic spring (110) fixedly connected to the conical pad (109).

6. The aluminum rod grinding device according to claim 5, characterized in that: A second balancing plate (23) is slidably mounted on one side of the first balancing plate (22), an air cylinder (24) is fixedly mounted on the bottom of the second balancing plate (23), and a third piston rod (25) hinged to the second supporting plate (106) is inserted into the inner cavity of the air cylinder (24) in an up-and-down sliding state.

7. The aluminum rod grinding device according to claim 6, characterized in that: A first air chamber (118) is provided inside the second supporting plate (106), and a first piston rod (119) fixedly connected to the inclined block (112) is slidably mounted in the inner cavity of the first air chamber (118); The interior of the second supporting plate (106) is connected to a hose (120); the top of the first supporting plate (102) is fixedly mounted with an air collecting pipe (121) connected to the hose (120); the interior of the first supporting plate (102) is provided with a second air chamber (122) connected to the air collecting pipe (121); the interior of the second air chamber (122) is plugged with a second piston rod (123) extending into the interior of the guide groove 1 (103).

8. The aluminum rod grinding device according to claim 7, characterized in that: The driving assembly comprises a slide groove (111) provided on the top of the first supporting plate (102); a slanting block (112) is slidably mounted on the top of the slide groove (111); and a moving roller (113) rotatably connected to the second supporting plate (106) is slidably mounted on the top of the slanting block (112); A push rod (114) arranged in a horizontal state is fixedly connected to one side of the inclined block (112), a toothed plate (115) is fixedly mounted on the top of the push rod (114), and an electric gear plate (117) rotatably connected to the first connecting frame (116) is meshed on the top of the toothed plate (115).

9. The aluminum rod grinding device according to claim 8, characterized in that: The rod limiting mechanism (4) comprises a first bracket (41) fixedly mounted on both sides of the second connecting frame (31); one side of each of the two first brackets (41) is fixedly connected to a second bracket (42) perpendicular thereto; one side of the second bracket (42) is rotatably mounted with a first guide frame (43) and a second guide frame (44); the first guide frame (43) and the second guide frame (44) are arranged in a mutually hinged state; one side of each of the first guide frame (43) and the second guide frame (44) is fixedly mounted with a hollow plate (45); and an adjustment component for driving the first guide frame (43) and the second guide frame (44) to deflect synchronously is provided between the first guide frame (43) and the second guide frame (44).

10. The aluminum rod grinding device according to claim 9, characterized in that: The adjustment assembly comprises a rotating rod (46) fixedly mounted on one side of the second bracket (42); a ball threaded rod (47) is fixedly connected to the bottom of the rotating rod (46); a threaded sleeve (48) is threadedly connected to the outer wall of the ball threaded rod (47); and the outer wall of the threaded sleeve (48) is hingedly connected to two third guide frames (49) respectively hinged to the first guide frame (43) and the second guide frame (44); The tops of the two rotating rods (46) are fixedly connected to a second gear (410), and the outer walls of the two second gears (410) are meshed with a second synchronous belt (411).

Images