Automatic grinding device for variable diameter carbon fiber tube

Abstract

The present invention relates to the technical field of carbon fiber tube grinding, and specifically to an automatic grinding device for variable diameter carbon fiber tubes, comprising: a frame, on which a track is arranged; a clamping mechanism, wherein the clamping mechanism comprises a guide rail established on the track and capable of adjusting position, a threaded shaft is rotated on the guide rail, a clamping seat a is slid on the guide rail, when the threaded shaft rotates, the clamping seat a slides on the guide rail along the threaded shaft, a clamping seat b which can adjust position according to the length of the carbon fiber tube is slid on the guide rail, a clamping seat b and a clamping seat a are respectively arranged on the clamping seat b and the clamping seat a for clamping both ends of the carbon fiber tube, and the purpose of the present invention is to provide an automatic grinding device for variable diameter carbon fiber tubes, when the grinder is grinding the carbon fiber tube, the grinder is guided by an extrusion head, so that the grinder can automatically follow the gradual change of the diameter of the carbon fiber tube while grinding, thereby improving the diversity of carbon fiber tube grinding.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber tube polishing, in particular to an automatic polishing device for variable-diameter carbon fiber tubes. Background Art

[0002] Carbon fiber tube, also known as carbon fiber tube, also known as carbon tube, carbon fiber tube, is made of carbon fiber composite material pre-impregnated with styrene-based polyester resin and then heated, cured, pultruded (wound). During the manufacturing process, various profiles can be produced through different molds, such as: carbon fiber round tubes of different specifications, square tubes of different specifications, sheets of different specifications, and other profiles: When processing carbon fiber tubes, they need to be polished to facilitate subsequent processing operations. The existing polishing device structure is relatively simple, especially when facing carbon fiber tubes with a gradient diameter, it is difficult to polish according to the continuous change of the diameter of the carbon fiber tube. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic grinding device for variable diameter carbon fiber tubes. When the grinder is grinding the carbon fiber tube, the grinder is guided by an extrusion head so that the grinder can automatically follow the gradual change of the diameter of the carbon fiber tube while grinding, thereby improving the diversity of carbon fiber tube grinding.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic grinding device for a variable diameter carbon fiber tube, comprising: a frame, a track is arranged on the frame; a clamping mechanism, the clamping mechanism comprises a guide rail set on the track and capable of adjusting the position, a threaded shaft is rotated on the guide rail, a clamping seat a is slid on the guide rail, when the threaded shaft rotates, the clamping seat a slides on the guide rail along the threaded shaft, a clamping seat b is slid on the guide rail and the position can be adjusted according to the length of the carbon fiber tube, the clamping seat b and the clamping seat a are respectively provided with a clamp b and a clamp a for clamping the two ends of the carbon fiber tube, and the two ends of the carbon fiber tube are The carbon fiber tube can rotate on the clamps b and a while being clamped by the clamps b and a; a telescopic shaft b is arranged above the guide rail and rotates synchronously with the threaded shaft, and a telescopic shaft a is slidably arranged inside the telescopic shaft b, and the telescopic shaft b and the telescopic shaft a are both connected through the clamps a and b, and a clamp c is arranged at one end of the telescopic shaft a to fix one end of the carbon fiber tube, and the carbon fiber tube is sleeved on the outside of the telescopic shaft a and the telescopic shaft b, and then the carbon fiber tube is fixed by the clamp c, and then the threaded shaft rotates while driving the telescopic shaft b to rotate, and the telescopic shaft b rotates while driving the telescopic shaft b to rotate. The shaft a rotates, and the telescopic shaft a drives the carbon fiber tube to rotate by means of the clamp c. At this time, the threaded shaft drives the clamp a to move through the clamping seat a. While the clamp a drives the carbon fiber tube to move, the telescopic shaft a slides inside the telescopic shaft b; a grinding mechanism, the grinding mechanism includes a mobile frame sliding on the frame, a grinder for grinding the carbon fiber tube is provided on one side of the mobile frame, a pressure rod is bolted on one side of the mobile frame, and an extrusion head for contacting and extruding the carbon fiber tube is provided on one end of the pressure rod, a fixed frame is fixed on one side of the frame, the other end of the pressure rod is connected with the fixed frame through and through, and the fixed A guide shaft for guiding the pressure rod is arranged inside the frame, and a weight for squeezing the pressure rod is sleeved on the outer side of the guide shaft; the clamp a and the clamp b both include an upper cover plate and a lower base, and the upper cover plate and the lower base are bolted together, and rollers are rotatably arranged on the upper cover plate and the lower base, and the rollers are rollingly connected with the carbon fiber tube. After the carbon fiber tube is placed on the lower base and the upper cover plate and the lower base are bolted together, the rollers on the upper cover plate and the lower base are in contact and squeezed with the carbon fiber tube, and while the rollers are clamped with the carbon fiber tube, the carbon fiber tube can roll on the clamp a and the clamp b.

[0005] Preferably, the guide rail slides on a track.

[0006] Preferably, a motor is fixed on the guide rail, and an output end of the motor is connected to the threaded shaft.

[0007] Preferably, the surface of the threaded shaft is provided with threads, and the bottom of the clamping seat a is provided with a bearing seat, and the bearing seat is connected to the threaded ball nut pair on the threaded shaft.

[0008] Preferably, a synchronous belt is installed at one end of the threaded shaft, one end of the telescopic shaft b is connected to the synchronous belt, and a fixing seat for rotatably mounting the telescopic shaft b is fixed at one end of the guide rail.

[0009] Preferably, a convex rib is arranged on the outer side of the telescopic shaft a, the telescopic shaft b is plugged into the telescopic shaft a, and a sliding groove for the convex rib to slide is provided on the telescopic shaft b.

[0010] Preferably, a vertical frame is fixed on the frame, the mobile frame is slidably mounted on the vertical frame, the grinder is mounted on the mobile frame, a limiting track for the sliding of the mobile frame is arranged on the vertical frame, a bolt frame is fixed on one side of the mobile frame, a connecting piece is fixed on the pressure rod, and one end of the connecting piece is screwed to the bolt frame.

[0011] Preferably, the middle portion of the pressure rod is of an annular hollow design, and the middle hollow portion of the pressure rod slides along the guide shaft, and a weight rack for placing weights is installed on the fixed frame.

[0012] Preferably, a ventilation cylinder is fixed inside the fixing frame, a piston rod is slidably disposed on the ventilation cylinder, a scale is disposed on the outer side of the piston rod, and one end of the piston rod is fixedly connected to the other end of the pressure rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention makes the bottom of the extrusion head contact with the carbon fiber tube, and then uses the mobile frame to slide on the vertical frame to adjust the distance between the grinding piece on the grinder and the carbon fiber tube, and then uses the connecting piece to screw and fix with the bolt frame on the mobile frame, so that the grinder can move up and down synchronously with the extrusion head through the connecting piece; while the carbon fiber tube moves, the extrusion head continues to contact with the outer side of the carbon fiber tube and moves up and down following the gradual change of the diameter of the carbon fiber tube. At this time, the extrusion head drives the grinder to move synchronously, so that the grinder can grind the carbon fiber tube. The extrusion head can guide the grinder, so that the grinder can automatically follow the gradual change of the diameter of the carbon fiber tube while grinding, further improving the diversity of carbon fiber tube grinding.

[0015] 2. The present invention uses rollers disposed between the upper cover plate and the lower base, and the rollers are rollingly connected to the carbon fiber tube. After the carbon fiber tube is connected by bolts to the lower base and the upper cover plate, the upper cover plate and the lower base are clamped with the carbon fiber tube by the rollers, and the carbon fiber tube can roll on the clamps a and b, thereby making the carbon fiber tube self-rotate and polish. In addition, with the automatic feeding of the carbon fiber tube, the carbon fiber tube can be further fed at a certain speed and polished at a certain rotation speed, so that it can be polished more accurately.

[0016] 3. The present invention can put a weight on the guide shaft and make the weight squeeze the pressure rod to apply a certain amount of pressure to the pressure rod. On the one hand, it can ensure that the extrusion head is in continuous and stable contact with the carbon fiber tube to ensure the grinding effect of the grinder. On the other hand, the pressure rod applies a certain pressure to the carbon fiber tube through the extrusion head, and a certain pressure test can be performed on the carbon fiber tube to improve the production quality of the carbon fiber tube and avoid the unqualified quality of the carbon fiber tube affecting the reputation of the manufacturer; in addition, the extrusion head can clean the carbon fiber tube before grinding to avoid impurities affecting the grinding of the carbon fiber tube, thereby further improving the grinding quality of the carbon fiber tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 The second schematic diagram of the overall structure of the present invention;

[0019] Figure 3 The third schematic diagram of the overall structure of the present invention;

[0020] Figure 4 It is a partial structural schematic diagram of the clamping mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the grinding mechanism of the present invention;

[0022] Figure 6 The second schematic diagram of the grinding mechanism of the present invention;

[0023] Figure 7 The third schematic diagram of the grinding mechanism of the present invention;

[0024] Figure 8 The fourth schematic diagram of the partial structure of the grinding mechanism of the present invention.

[0025] In the figure: 1. frame; 2. clamping mechanism; 21. guide rail; 22. motor; 23. clamping seat a; 24. clamping seat b; 25. fixed seat; 26. fixture a; 27. telescopic shaft a; 28. fixture b; 29. ​​telescopic shaft b; 210. threaded shaft; 211. synchronous belt; 212. fixture c; 3. grinding mechanism; 31. vertical frame; 32. mobile frame; 33. grinder; 34. fixed frame; 35. extrusion head; 36. pressure rod; 37. connecting piece; 38. guide shaft; 39. piston rod; 310. air exchange cylinder; 311. weight rack; 312. bolt rack. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. 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.

[0027] The present invention provides an automatic grinding device for a variable diameter carbon fiber tube, comprising: a frame 1, on which a track is arranged; a clamping mechanism 2, wherein the clamping mechanism 2 comprises a guide rail 21 which is set on the track and can adjust the position, a threaded shaft 210 is rotated on the guide rail 21, a clamping seat a23 is slid on the guide rail 21, when the threaded shaft 210 rotates, the clamping seat a23 slides on the guide rail 21 along the threaded shaft 210, a clamping seat b24 which can adjust the position according to the length of the carbon fiber tube is slid on the guide rail 21, and a clamping seat b28 and a clamping seat a26 for clamping the two ends of the carbon fiber tube are respectively arranged on the clamping seat b24 and the clamping seat a23, and the two ends of the carbon fiber tube are clamped by the clamps b28 and a26 while the carbon fiber tube can be clamped. The guide rail 21 is provided with a telescopic shaft b29 which rotates synchronously with the threaded shaft 210, and a telescopic shaft a27 is slidably arranged inside the telescopic shaft b29. The telescopic shaft b29 and the telescopic shaft a27 are both connected with the clamps a26 and b28, and a clamp c212 which fixes one end of the carbon fiber tube is arranged at one end of the telescopic shaft a27. The carbon fiber tube is sleeved on the outside of the telescopic shaft a27 and the telescopic shaft b29, and then the carbon fiber tube is fixed by the clamp c212. Then, the threaded shaft 210 drives the telescopic shaft b29 to rotate while the telescopic shaft b29 rotates, and the telescopic shaft a27 drives the telescopic shaft b29 to rotate while the telescopic shaft b29 rotates. The telescopic shaft a27 drives the carbon fiber tube by the clamp c212. The guide rail 21 slides on the track, and a motor 22 is fixed on the guide rail 21. The output end of the motor 22 is connected to the threaded shaft 210. The surface of the threaded shaft 210 is provided with a thread. A bearing seat is provided at the bottom of the clamping seat a23, and the bearing seat is connected to the threaded ball nut pair on the threaded shaft 210. The clamp a26 and the clamp b28 both include an upper cover plate and a lower base, and the upper cover plate and the lower base are bolted together. Rollers are rotatably provided on the upper cover plate and the lower base, and the rollers are rollingly connected to the carbon fiber tube. When the carbon fiber tube is placed After being placed on the lower base and connected with the upper cover plate and the lower base by bolts, the rollers on the upper cover plate and the lower base are in contact with and squeezed by the carbon fiber tube, and while the rollers are clamped by the carbon fiber tube, the carbon fiber tube can roll on the fixture a26 and the fixture b28. It is to be noted again that after the carbon fiber tube is placed on the rollers on the lower base, the carbon fiber tube is in contact with the rollers, and then the rollers on the upper cover plate are in contact with the carbon fiber tube, and finally the upper cover plate is bolted to the lower base, so that the rollers on the upper cover plate and the lower base are in contact with and squeezed by the carbon fiber tube, thereby fixing the carbon fiber tube by contacting and squeezing with the rollers, and at the same time, the design of the rollers rotating on the upper cover plate and the lower base can be used to realize the rotation of the carbon fiber tube on the upper cover plate and the lower base;

[0028] A synchronous belt 211 is installed at one end of the threaded shaft 210, one end of the telescopic shaft b29 is connected to the synchronous belt 211, and a fixing seat 25 for rotatably installing the telescopic shaft b29 is fixed at one end of the guide rail 21, a convex rib is arranged on the outer side of the telescopic shaft a27, the telescopic shaft b29 is plugged with the telescopic shaft a27, and a sliding groove for the convex rib to slide is opened on the telescopic shaft b29;

[0029] See also Figures 1 to 4 As shown, when grinding the carbon fiber tube with a gradual diameter, the carbon fiber tube is sleeved on the outside of the telescopic shaft a27 and the telescopic shaft b29. At this time, the carbon fiber tube is placed on the lower base on the clamp a26 and the clamp b28, and then the upper cover plate on the clamp a26 and the clamp b28 is bolted to the lower base, and finally one end of the carbon fiber tube is fixed by the clamp c212; then the motor 22 is started, and the output end of the motor 22 drives the threaded shaft 210 to rotate. Since a bearing seat is provided at the bottom of the clamping seat a23, the bearing seat is connected to the threaded ball nut pair on the threaded shaft 210, and the threaded shaft 210 is rotated. While rotating, the clamping seat a23 moves along the threaded shaft 210, and at the same time, the clamping seat a23 drives the carbon fiber tube to move through the clamp a26, and the carbon fiber tube uses the clamp b28 to push the clamping seat b24 to move, so that the carbon fiber tube can be automatically moved, and the effect of automatic feeding is achieved. The carbon fiber tube can be polished more accurately during automatic feeding, avoiding errors in manual feeding, resulting in different polishing time and degree of different parts of the carbon fiber tube, affecting the polishing quality of the carbon fiber tube; in addition, the clamp a26 and the clamp b28 can be used to clamp the carbon fiber tube with different diameters at both ends, thereby improving the flexibility and practicality of polishing;

[0030] When the threaded shaft 210 rotates, the threaded shaft 210 drives the telescopic shaft b29 to rotate through the synchronous belt 211. Since a convex rib is provided on the outer side of the telescopic shaft a27, the telescopic shaft b29 is plugged with the telescopic shaft a27, and a sliding groove for the sliding of the convex rib is provided on the telescopic shaft b29. Therefore, when the telescopic shaft b29 rotates, the telescopic shaft a27 is driven to rotate through the convex rib, and the telescopic shaft a27 drives the clamp c212 to rotate. Since the clamp c212 is fixed to the carbon fiber tube, the telescopic shaft a27 drives the carbon fiber tube to rotate. At this time, since rollers are provided between the upper cover plate and the lower base, and the rollers are connected with the carbon fiber tube in a rolling manner, after the carbon fiber tube is connected through the lower base and the upper cover plate bolts, the upper cover plate and the lower base are clamped with the carbon fiber tube by the rollers, and the carbon fiber tube can roll on the clamp a26 and the clamp b28, thereby making the carbon fiber tube self-rotating and polishing. In addition, in combination with the above-mentioned automatic feeding of the carbon fiber tube, the carbon fiber tube can be further fed at a certain speed and polished at a certain self-rotating speed, so that the polishing is more accurate.

[0031] In addition, the thread pitch on the threaded shaft 210 can be controlled, thereby controlling the feeding speed and the rotation speed of the carbon fiber tube to form a certain ratio, thereby further improving the grinding accuracy of the carbon fiber tube.

[0032] The grinding mechanism 3 includes a movable frame 32 sliding on the frame 1, a grinding machine 33 for grinding the carbon fiber tube is arranged on one side of the movable frame 32, a pressure rod 36 is bolted on one side of the movable frame 32, and an extrusion head 35 for contacting and extruding the carbon fiber tube is arranged at one end of the pressure rod 36, a fixed frame 34 is fixed on one side of the frame 1, the other end of the pressure rod 36 is connected through the fixed frame 34, and a guide shaft 38 for guiding the pressure rod 36 is arranged inside the fixed frame 34, and a weight for extruding the pressure rod 36 is sleeved on the outer side of the guide shaft 38; a vertical frame 31 is fixed on the frame 1, and the movable frame 32 is slidably installed on the vertical frame 31, and the grinding machine 33 is provided on the movable frame 32. 3 is installed on the mobile frame 32, and a limiting track for the sliding of the mobile frame 32 is arranged on the vertical frame 31, a bolt frame 312 is fixed on one side of the mobile frame 32, a connecting piece 37 is fixed on the pressure rod 36, one end of the connecting piece 37 is screwed to the bolt frame 312, the middle part of the pressure rod 36 is an annular hollow design, and the middle hollow part of the pressure rod 36 slides along the guide shaft 38, a weight frame 311 for placing weights is installed on the fixed frame 34, a ventilator 310 is fixed inside the fixed frame 34, a piston rod 39 slides on the ventilator 310, a scale is arranged on the outer side of the piston rod 39, and one end of the piston rod 39 is fixedly connected to the other end of the pressure rod 36;

[0033] See also Figures 4 to 8As shown, after the carbon fiber tube is fixed and before grinding, the pressure rod 36 is controlled to slide on the fixed frame 34, and the pressure rod 36 drives the extrusion head 35 to move, so that the bottom of the extrusion head 35 contacts the carbon fiber tube, and then the mobile frame 32 is used to slide on the vertical frame 31 to adjust the distance between the grinding piece on the grinder 33 and the carbon fiber tube, and then the connecting piece 37 is screwed and fixed with the bolt frame 312 on the mobile frame 32, so that the grinder 33 can be moved up and down synchronously with the extrusion head 35 through the connecting piece 37; while the carbon fiber tube moves, the extrusion head 35 continues to contact the outside of the carbon fiber tube and moves up and down following the gradual change of the diameter of the carbon fiber tube, and at this time the extrusion head 35 drives the grinding The machine 33 moves synchronously, thereby the grinder 33 can grind the carbon fiber tube, and the extrusion head 35 can guide the grinder 33, so that the grinder 33 can automatically follow the gradual change of the diameter of the carbon fiber tube while grinding, further improving the diversity of the grinding of the carbon fiber tube; in addition, the height difference between the extrusion head 35 and the grinder 33 can be judged by following the multiple bolt holes and scales set on the bolt rack 312, and at the same time, according to the fixed distance between the grinder 33 and the extrusion head 35, the angle between the outer side of the carbon fiber tube and the horizontal line at this time can be simply calculated by the Pythagorean theorem, thereby checking whether the quality of the carbon fiber tube is qualified, and further improving the production quality of the carbon fiber tube;

[0034] In addition, a weight can be put on the guide shaft 38, and the weight can be used to squeeze the pressure rod 36 to apply a certain amount of pressure to the pressure rod 36. On the one hand, it can ensure that the extrusion head 35 is in continuous and stable contact with the carbon fiber tube to ensure the grinding effect of the grinder 33. On the other hand, the pressure rod 36 applies a certain pressure to the carbon fiber tube through the extrusion head 35, which can perform a certain pressure test on the carbon fiber tube, thereby improving the production quality of the carbon fiber tube and avoiding the unqualified quality of the carbon fiber tube affecting the reputation of the manufacturer; in addition, the extrusion head 35 can clean the carbon fiber tube before grinding to avoid impurities affecting the grinding of the carbon fiber tube and further improve the grinding quality of the carbon fiber tube; it should be noted that since the clamps a26 and b28 clamp the two ends of the carbon fiber tube, the technical solution only grinds a part of the carbon fiber tube, not the entire outer side of the carbon fiber tube.

[0035] In addition, when the pressure rod 36 is pressed against the carbon fiber tube through the extrusion head 35 and moves up and down with the carbon fiber tube, the position change of the piston rod 39 inside the air exchange cylinder 310 can be observed using the scale on the outside of the piston rod 39, and the change in the diameter of the carbon fiber tube can be detected intuitively, which is convenient for the operator to record and detect whether the grinding of the outside of the carbon fiber tube is qualified.

[0036] In addition, the extrusion head 35 and the grinding piece on the grinding machine 33 can be placed at the same horizontal line, so that the carbon fiber tubes with the same diameter can be ground, thereby improving the practicality of the carbon fiber tube grinding.

[0037] Working principle: when polishing a carbon fiber tube with a gradually changing diameter, the carbon fiber tube is sleeved on the outside of the telescopic shaft a27 and the telescopic shaft b29. At this time, the carbon fiber tube is placed on the lower base on the clamp a26 and the clamp b28, and then the upper cover plate on the clamp a26 and the clamp b28 is connected with the lower base bolts, and finally one end of the carbon fiber tube is fixed by the clamp c212; then the motor 22 is started, and the output end of the motor 22 drives the threaded shaft 210 to rotate. Since a bearing seat is provided at the bottom of the clamping seat a23, the bearing seat is connected to the threaded ball nut pair on the threaded shaft 210. When the threaded shaft 210 rotates, the clamping seat a23 moves along the threaded shaft 210, and at the same time, the clamping seat a23 drives the carbon fiber tube to move through the clamp a26, and the carbon fiber tube uses the clamp b28 to push the clamping seat b24 to move. At this time, the carbon fiber tube can be automatically moved, which has the effect of automatic feeding. In addition, the clamp a26 and the clamp b28 can be used to clamp carbon fiber tubes with different diameters at both ends;

[0038] When the threaded shaft 210 rotates, the threaded shaft 210 drives the telescopic shaft b29 to rotate through the synchronous belt 211. Since a convex rib is provided on the outer side of the telescopic shaft a27, the telescopic shaft b29 is plugged with the telescopic shaft a27, and a sliding groove for the sliding of the convex rib is provided on the telescopic shaft b29. Therefore, when the telescopic shaft b29 rotates, the telescopic shaft a27 is driven to rotate through the convex rib, and the telescopic shaft a27 drives the clamp c212 to rotate. Since the clamp c212 is fixed to the carbon fiber tube, the telescopic shaft a27 drives the carbon fiber tube to rotate. At this time, since rollers are provided between the upper cover plate and the lower base, and the rollers are connected with the carbon fiber tube in a rolling manner, after the carbon fiber tube is connected through the lower base and the upper cover plate bolts, the upper cover plate and the lower base are clamped with the carbon fiber tube by the rollers, and the carbon fiber tube can roll on the clamps a26 and b28, thereby making the carbon fiber tube self-rotating and polishing. In addition, with the above-mentioned automatic feeding of the carbon fiber tube, the carbon fiber tube can be further fed at a certain speed and polished at a certain rotation speed, so that the polishing is more precise.

[0039] After the carbon fiber tube is fixed and before grinding, the pressure rod 36 is controlled to slide on the fixed frame 34, and the pressure rod 36 drives the extrusion head 35 to move, so that the bottom of the extrusion head 35 contacts the carbon fiber tube, and then the mobile frame 32 is used to slide on the vertical frame 31 to adjust the distance between the grinding piece on the grinder 33 and the carbon fiber tube, and then the connecting piece 37 is screwed and fixed with the bolt frame 312 on the mobile frame 32, so that the grinder 33 can be moved up and down synchronously with the extrusion head 35 through the connecting piece 37; while the carbon fiber tube moves, the extrusion head 35 continues to contact the outer side of the carbon fiber tube and moves up and down following the gradual change of the diameter of the carbon fiber tube. At this time, the extrusion head 35 drives the grinder 33 to move synchronously, so that the grinder 33 can grind the carbon fiber tube, and the extrusion head 35 can guide the grinder 33, so that the grinder 33 can automatically follow the gradual change of the diameter of the carbon fiber tube while grinding;

[0040] In addition, a weight can be put on the guide shaft 38, and the weight can be squeezed to apply a certain amount of pressure to the pressure rod 36, so as to ensure that the extrusion head 35 is in continuous and stable contact with the carbon fiber tube, thereby ensuring the grinding effect of the grinder 33. The pressure rod 36 applies a certain pressure to the carbon fiber tube through the extrusion head 35; in addition, the extrusion head 35 can clean the carbon fiber tube before grinding to avoid impurities affecting the grinding of the carbon fiber tube, thereby further improving the grinding quality of the carbon fiber tube.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic grinding device for variable diameter carbon fiber tubes, characterized in that: include: A frame (1), wherein a track is arranged on the frame (1); A clamping mechanism (2), the clamping mechanism (2) comprising a guide rail (21) set on a track and capable of adjusting its position, a threaded shaft (210) rotating on the guide rail (21), a clamping seat a (23) sliding on the guide rail (21), the clamping seat a (23) sliding on the guide rail (21) along the threaded shaft (210) when the threaded shaft (210) rotates, a clamping seat b (24) sliding on the guide rail (21) capable of adjusting its position according to the length of the carbon fiber tube, a clamp b (28) and a clamp a (26) for clamping two ends of the carbon fiber tube respectively arranged on the clamping seat b (24) and the clamping seat a (23), and the two ends of the carbon fiber tube are clamped by the clamp b (28) and the clamp a (26) while the carbon fiber tube can rotate on the clamp b (28) and the clamp a (26); A telescopic shaft b (29) is arranged above the guide rail (21) and rotates synchronously with the threaded shaft (210). A telescopic shaft a (27) is slidably arranged inside the telescopic shaft b (29). The telescopic shaft b (29) and the telescopic shaft a (27) are both connected to the clamp a (26) and the clamp b (28). A clamp c (212) is arranged at one end of the telescopic shaft a (27) to fix one end of the carbon fiber tube. The carbon fiber tube is sleeved on the outside of the telescopic shaft a (27) and the telescopic shaft b (29), and then the clamp c is used to fix the carbon fiber tube. (212) fix the carbon fiber tube, then the threaded shaft (210) rotates while driving the telescopic shaft b (29) to rotate, and the telescopic shaft b (29) rotates while driving the telescopic shaft a (27) to rotate, and the telescopic shaft a (27) drives the carbon fiber tube to rotate using the clamp c (212), at this time, the threaded shaft (210) drives the clamp a (26) to move through the clamping seat a (23), and while the clamp a (26) drives the carbon fiber tube to move, the telescopic shaft a (27) slides inside the telescopic shaft b (29); A grinding mechanism (3), the grinding mechanism (3) comprising a movable frame (32) sliding on a frame (1), a grinding machine (33) for grinding the carbon fiber tube being arranged on one side of the movable frame (32), a pressure rod (36) being bolted on one side of the movable frame (32), one end of the pressure rod (36) being provided with an extrusion head (35) for contacting and extruding the carbon fiber tube, a fixed frame (34) being fixed on one side of the frame (1), the other end of the pressure rod (36) being connected through the fixed frame (34), and a guide shaft (38) for guiding the pressure rod (36) being arranged inside the fixed frame (34), and a weight for extruding the pressure rod (36) being sleeved on the outer side of the guide shaft (38); The clamp a (26) and the clamp b (28) both include an upper cover plate and a lower base, and the upper cover plate and the lower base are bolted together. The upper cover plate and the lower base are both rotatably provided with rollers, and the rollers are rollingly connected to the carbon fiber tube. After the carbon fiber tube is placed on the lower base and the upper cover plate and the lower base are bolted together, the rollers on the upper cover plate and the lower base are in contact and squeezed with the carbon fiber tube, and while the rollers are clamped with the carbon fiber tube, the carbon fiber tube can roll on the clamp a (26) and the clamp b (28).

2. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: The guide rail (21) slides on the track.

3. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: A motor (22) is fixed on the guide rail (21), and an output end of the motor (22) is connected to the threaded shaft (210).

4. The automatic grinding device for variable diameter carbon fiber tube according to claim 3, characterized in that: The surface of the threaded shaft (210) is provided with threads, and the bottom of the clamping seat a (23) is provided with a bearing seat, and the bearing seat is connected to the threaded ball nut pair on the threaded shaft (210).

5. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: One end of the threaded shaft (210) is mounted with a synchronous belt (211), one end of the telescopic shaft b (29) is connected to the synchronous belt (211), and one end of the guide rail (21) is fixed with a fixing seat (25) for rotatably mounting the telescopic shaft b (29).

6. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: The telescopic shaft a (27) is provided with a convex rib on the outside, the telescopic shaft b (29) is plugged into the telescopic shaft a (27), and the telescopic shaft b (29) is provided with a sliding groove for the convex rib to slide.

7. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: A vertical frame (31) is fixed on the frame (1), the mobile frame (32) is slidably mounted on the vertical frame (31), the grinder (33) is mounted on the mobile frame (32), a limiting track for sliding the mobile frame (32) is provided on the vertical frame (31), a bolt frame (312) is fixed on one side of the mobile frame (32), a connecting piece (37) is fixed on the pressure rod (36), and one end of the connecting piece (37) is screwed to the bolt frame (312).

8. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: The middle portion of the pressure rod (36) is of an annular hollow design, and the middle hollow portion of the pressure rod (36) slides along the guide shaft (38). A weight rack (311) for placing weights is installed on the fixed frame (34).

9. The automatic grinding device for variable diameter carbon fiber tube according to claim 1, characterized in that: A ventilator (310) is fixed inside the fixing frame (34), a piston rod (39) is slidably mounted on the ventilator (310), a scale is provided on the outer side of the piston rod (39), and one end of the piston rod (39) is fixedly connected to the other end of the pressure rod (36).

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