Pipe polishing machine capable of polishing small-pipe-diameter pipe

Abstract

The invention relates to the technical field of polishing equipment, in particular to a pipe polishing machine capable of polishing small-diameter pipes, which comprises a base, a first support plate, a second support plate, a pipe fixing mechanism, a first servo motor, a polishing mechanism and a reciprocating mechanism. By means of the pipe fixing mechanism and the internal expansion type clamping mechanism, the polishing machine can be compatible with clamping of pipes with different diameters, the application range of the polishing machine is effectively widened, meanwhile, by means of the polishing mechanism, the pipes are forced to rotate and revolve around the axes of the pipes through gear linkage driving, and the polishing efficiency is improved. According to the pipe polishing device, non-uniform local abrasion caused by single-point contact is avoided, 360-degree all-dimensional polishing is achieved, the pipe polishing device is particularly suitable for circumferential surface treatment of small-pipe-diameter pipes, the polishing mechanism can automatically reciprocate on a revolution path according to the lengths of the pipes through the arrangement of the reciprocating mechanism, the full-length outer walls of the pipes are covered, and the polishing efficiency is improved. Manual intervention is reduced; and efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing equipment, and in particular to a pipe polishing machine capable of polishing small-diameter pipes. Background Art

[0002] A round pipe polishing machine generally refers to an external round polishing machine, which is also called a centerless polishing machine, a centerless external round polishing machine, a round pipe polishing machine, or a slender shaft polishing machine. It is mainly used in hardware manufacturing, vehicle parts, steel-wood furniture, and instrument machinery. The round pipe polishing machine polishes the outer wall of small-diameter pipes through polishing strips or grinding wheels. However, during the process of polishing the outer surface of the pipes, a fixing tooling is also required to clamp and fix the pipes.

[0003] In related technologies, traditional polishing machines mostly adopt fixed clamping or one-way drive designs, resulting in the pipes being unable to rotate independently during the polishing process and relying only on single-point contact of the grinding wheel, which easily causes uneven local polishing or missed areas. Moreover, traditional polishing equipment usually only supports the self-rotation or linear reciprocating motion of the polishing wheel and cannot achieve the revolution motion around the axis of the pipe, resulting in the difficulty of fully covering the curved surface of the outer wall of the round pipe. At the same time, during the polishing process, the traditional equipment needs to manually adjust the position of the polishing wheel to cover the entire length of the pipe, with low automation, resulting in low efficiency and difficult precision guarantee during small-diameter polishing. In addition, existing cylinder or screw drive mechanisms lack dynamic feedback and are prone to motion jams due to resistance changes during small-diameter polishing, affecting the continuity of polishing. Summary of the Invention

[0004] In order to solve the problems of poor uniformity, low efficiency, and narrow application range faced by current small-diameter pipes during polishing, the present invention provides a pipe polishing machine capable of polishing small-diameter pipes.

[0005] The pipe polishing machine capable of polishing small-diameter pipes provided by the present invention adopts the following technical solutions:

[0006] A pipe polishing machine capable of polishing small-diameter pipes, comprising:

[0007] A base, on one side of which a first support plate is fixed, and on the other side a second support plate is slidably connected. Pipe fixing mechanisms are provided on both the first support plate and the second support plate. The pipe fixing mechanism includes a tray, a supporting rod, a butting cylinder, and a locking unit. The two trays are respectively rotatably connected to the first support plate and the second support plate. The supporting rod is fixed at the center of the tray. The butting cylinder is slidably sleeved on the supporting rod. The locking unit for locking the pipe is arranged inside the butting cylinder, and a first servo motor is fixed on one side of the second support plate;

[0008] A polishing mechanism, wherein the polishing mechanism is arranged on the base, and the polishing mechanism comprises a third support plate, a limit seat and a polishing unit, wherein the third support plate is slidably connected to the base, the limit seat is fixed on the third support plate, and the polishing unit for polishing is arranged in the limit seat;

[0009] The base is also provided with a reciprocating mechanism for driving the polishing mechanism to reciprocate.

[0010] By adopting the above technical scheme, utilizing the setting of the pipe fixing mechanism and the internal expansion clamping mechanism, the polishing machine can be compatible with the clamping of pipes of different diameters, effectively improving the application scope of the polishing machine, and at the same time utilizing the setting of the polishing mechanism, the self-rotation of the pipe is forced through the gear linkage drive and the orbital motion around the axis of the pipe is realized at the same time, thereby avoiding the uneven local wear caused by single-point contact and realizing 360° all-round polishing, which is particularly suitable for the circumferential surface treatment of small-diameter pipes, and utilizing the setting of the reciprocating mechanism so that the polishing mechanism can realize the autonomous reciprocating motion of the polishing mechanism on the orbital path according to the length of the pipe, covering the entire length of the outer wall of the pipe, reducing manual intervention and improving efficiency, and through the coordinated design of forced self-rotation drive, adjustable orbital trajectory and reciprocating motion, the pain points of poor uniformity, low efficiency and narrow applicability in the polishing of small-diameter pipes are effectively solved, significantly improving the polishing quality and reducing the processing cost.

[0011] Further technical solution: the locking unit includes a splint, a linkage rod and a driven rod, a slot is penetrated through the abutment tube, the splint is slidably arranged in the slot, one end of the linkage rod is rotatably connected in the abutment tube, and the other end is rotatably connected to the splint, and the driven rod is rotatably connected between the supporting rod and the splint.

[0012] By adopting the above technical solution, the abutment tube is used to slide on the supporting rod, thereby driving the linkage rod and the driven rod to move in conjunction, so that the clamping plate can be synchronously linked, and the clamping plate abuts against the inner wall of the pipe, thereby achieving a rapid fixing effect for pipes of different diameters.

[0013] Further technical solution: The pipe fixing mechanism also includes an adjusting screw and a second servo motor, the adjusting screw is rotatably connected to the base, and a screw hole is penetrated on the second support plate, the adjusting screw is threadedly engaged with the second support plate through the screw hole, the second servo motor is fixed on the side of the base close to the second support plate, and the output shaft of the second servo motor is coaxially fixed with the adjusting screw, a through hole is penetrated on the third support plate, the adjusting screw passes through the through hole, and is slidably connected to the third support plate.

[0014] By adopting the above technical solution, the second servo motor is used to drive the adjusting screw rod to rotate, so that the second support plate is thread - linked and slides on the base, and thus the distance between the first support plate and the second support plate can be appropriately adjusted according to the length of the pipe.

[0015] Further technical solution: An incomplete gear ring is rotatably clamped in the limit seat. The polishing unit is arranged on the incomplete gear ring. The polishing unit includes a first adjusting rod, a second adjusting rod and a polishing plate. One ends of the first adjusting rod and the second adjusting rod are rotatably connected to each other. The polishing plate is arranged at the connection of the first adjusting rod and the second adjusting rod and abuts against the pipe wall. The other end of the first adjusting rod is rotatably connected to the incomplete gear ring, and the other end of the second adjusting rod is slidably clamped on the incomplete gear ring.

[0016] By adopting the above technical solution, the first adjusting rod and the second adjusting rod are used in combination to enable the polishing plate to adhere to the outer wall of the pipe, and the rotation of the incomplete gear ring drives the polishing plate to make a circular motion, realizing the polishing effect on the outer wall of the pipe.

[0017] Further technical solution: The polishing mechanism further includes a linkage gear, a passive disk, an active disk, a first belt and a first transmission rod. The linkage gear is rotatably connected in the limit seat and meshes with the incomplete gear ring. The passive disk is coaxially fixed on one side of the linkage gear and is located outside the limit seat. The active disk is rotatably connected to the outer wall of the limit seat. The first belt is arranged between the passive disk and the active disk. The first transmission rod is rotatably connected to the base, and through holes are respectively arranged at the axis of the active disk and on the third support plate. The first transmission rod is slidably connected in the through holes, and grooves are arranged on the inner wall of the through holes. Protrusions are arranged on the outer wall of the first transmission rod, and the protrusions are slidably matched with the grooves.

[0018] By adopting the above technical solution, the first transmission rod is used to drive the active disk to rotate, and then the passive disk and the linkage gear are driven to rotate synchronously through the first belt, and then the incomplete gear ring is driven to mesh and link through the linkage gear.

[0019] Further technical solution: A second belt is arranged between the first transmission rod and the tray on the first support plate.

[0020] By adopting the above technical solution, the second belt enables the first transmission rod to rotate synchronously with the tray.

[0021] Further technical solution: The reciprocating mechanism includes a fixed seat, a driven lead screw, a driven sleeve and a docking sleeve. The fixed seat is fixed on one side of the base close to the first support plate. The driven lead screw is slidably connected to the base and the fixed seat. The driven sleeve is rotatably connected to the fixed seat, and there are two driven sleeves arranged coaxially and symmetrically. The docking sleeve is coaxially fixed on the driven lead screw and is located between two adjacent driven sleeves. Tooth groove structures are provided at both ends of the docking sleeve and at one end of two adjacent driven sleeves close to each other. The docking sleeve meshes with one of the driven sleeves through the tooth groove.

[0022] By adopting the above technical solution, the sliding of the docking sleeve is used to make its two ends mesh with two adjacent driven sleeves respectively, so as to realize the rapid adjustment of the rotation direction of the driven lead screw.

[0023] Further technical solution: The reciprocating mechanism further includes a clamping seat, a positioning rod, a locking rod and a third resetting member. The clamping seat is fixed at one end of the base far from the first support plate. The positioning rod is slidably clamped in the clamping seat, and a clamping groove is provided on the positioning rod. The locking rod is slidably connected in the clamping seat, and one end of the locking rod is slidably abutted in the clamping groove. The third resetting member is sleeved on the locking rod, and one end of the third resetting member abuts against the clamping seat.

[0024] By adopting the above technical solution, the positioning rod is limited by the locking rod, so that the docking sleeve can stably mesh with the corresponding driven sleeve and avoid separation.

[0025] Further technical solution: The reciprocating mechanism further includes a passive bevel gear, a first driving bevel gear, a second transmission rod, a driving bevel gear, a second driving bevel gear and a driven bevel gear. The passive bevel gear is coaxially fixed on the driven sleeve. The first driving bevel gear is rotatably connected to the fixed seat and meshes between two adjacent passive bevel gears. The second transmission rod is rotatably connected to one side of the first support plate. The driving bevel gear is coaxially fixed at one end of the second transmission rod and meshes with the first driving bevel gear. The second driving bevel gear is coaxially fixed with the tray on the first support plate. The driven bevel gear is coaxially fixed at the other end of the second transmission rod and meshes with the second driving bevel gear.

[0026] By adopting the above technical solution, the meshing linkage of the driven bevel gear and the second driving bevel gear is used to make the second transmission rod and the tray rotate synchronously. At the same time, the first driving bevel gear is driven to mesh and link through the driving bevel gear, and the two adjacent passive bevel gears can mesh and move in opposite directions through the first driving bevel gear.

[0027] Further technical solution: The pipe fixing mechanism further includes a telescopic rod, a first reset member, and a second reset member. The telescopic rod is arranged between the tray and the abutting cylinder. The first reset member is sleeved on the telescopic rod. The second reset member is arranged in the inner cavity of the abutting cylinder, and one end of the second reset member abuts against the inner wall of the abutting cylinder, and the other end abuts against the supporting rod.

[0028] By adopting the above technical solution, the telescopic rod is used to support and limit the abutting cylinder, and at the same time, the elastic forces of the first reset member and the second reset member are used to enable the abutting cylinder and the clamping plate to quickly reset, so as to facilitate the next clamping operation.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. By using the pipe fixing mechanism and the inner-expanding clamping mechanism, the polishing machine can be compatible with the clamping of pipes with different diameters, effectively improving the applicable range of the polishing machine. At the same time, by using the adjustable connection structure of the first support plate and the second support plate, the polishing machine can also be applicable to the processing of pipes with different lengths;

[0031] 2. By using the polishing mechanism, the gear linkage drive is used to force the pipe to rotate self and simultaneously realize the revolution movement around the axis of the pipe, avoiding uneven local wear caused by single-point contact, and realizing 360° full-round polishing, which is especially suitable for the circumferential surface treatment of small-diameter pipes;

[0032] 3. By using the reciprocating mechanism, the polishing mechanism can realize the autonomous reciprocating movement of the polishing mechanism on the revolution path according to the length of the pipe, covering the entire outer wall of the pipe, reducing manual intervention and improving efficiency. Through the collaborative design of forced self-rotation drive, adjustable revolution trajectory and reciprocating movement, the pain points of poor uniformity, low efficiency and narrow applicability in small-diameter polishing are effectively solved, significantly improving the polishing quality and reducing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 It is a schematic diagram of the second support plate and its connection structure in the present invention.

[0035] Figure 3 It is a schematic diagram of the structure of the pipe fixing mechanism in the present invention.

[0036] Figure 4 It is a schematic diagram of the clamping plate connection structure in the present invention.

[0037] Figure 5 It is a schematic diagram of the structure of the reciprocating mechanism in the present invention.

[0038] Figure 6 Schematic diagram of the second belt connection structure in the present invention.

[0039] Figure 7 Schematic diagram of the positioning rod and its connection structure in the present invention.

[0040] Figure 8 Schematic diagram of the polishing mechanism in the present invention.

[0041] Figure 9 Schematic diagram of the incomplete gear ring and its connection structure in the present invention.

[0042] Figure 10 Schematic diagram of the docking sleeve connection structure in the present invention.

[0043] In the attached drawings: 1. Base; 2. First support plate; 3. Second support plate; 4. Pipe fixing mechanism; 41. Tray; 42. Supporting rod; 43. Abutted cylinder; 44. Clamp; 45. Linking rod; 46. Driven rod; 47. Adjusting screw rod; 48. Second servo motor; 49. Expansion rod; 410. First reset member; 411. Second reset member; 5. First servo motor; 6. Polishing mechanism; 61. Third support plate; 62. Limiting seat; 63. Incomplete gear ring; 64. First adjusting rod; 65. Second adjusting rod; 66. Polishing plate; 67. Linking gear; 68. Passive disc; 69. Active disc; 610. First belt; 611. First transmission rod; 612. Second belt; 7. Reciprocating mechanism; 71. Fixed seat; 72. Driven screw rod; 73. Driven sleeve; 74. Docking sleeve; 75. Clamping seat; 76. Positioning rod; 77. Locking rod; 78. Third reset member; 79. Passive bevel gear; 710. First active bevel gear; 711. Second transmission rod; 712. Driving bevel gear; 713. Second active bevel gear; 714. Driven bevel gear. Detailed implementation manners

[0044] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0046] Refer to Figure 1 and Figure 2, it is a pipe polishing machine for polishing small-diameter pipes, including a base 1, a first support plate 2, a second support plate 3, a pipe fixing mechanism 4, a first servo motor 5, a polishing mechanism 6 and a reciprocating mechanism 7. A first support plate 2 is fixed on one side of the base 1, and a second support plate 3 is slidably connected on the other side. Pipe fixing mechanisms 4 are arranged on both the first support plate 2 and the second support plate 3, and a first servo motor 5 is fixed on one side of the second support plate 3. The polishing mechanism 6 and the reciprocating mechanism 7 are both arranged on the base 1. By setting the pipe fixing mechanism 4 and using an internal expansion clamping mechanism, the polishing machine can be compatible with the clamping of pipes with different diameters, effectively improving the applicable range of the polishing machine. At the same time, by setting the polishing mechanism 6, through gear linkage drive, the pipe is forced to rotate self and simultaneously achieve a revolution motion around the axis of the pipe, avoiding uneven local wear caused by single-point contact, realizing 360° full-round polishing, especially suitable for the circumferential surface treatment of small-diameter pipes. And by setting the reciprocating mechanism 7, the polishing mechanism 6 can achieve an independent reciprocating motion of the polishing mechanism 6 on the revolution path according to the length of the pipe, covering the entire outer wall of the pipe length, reducing manual intervention and improving efficiency. Through the collaborative design of forced self-rotation drive, adjustable revolution trajectory and reciprocating motion, the pain points of poor uniformity, low efficiency and narrow applicability in small-diameter polishing are effectively solved, significantly improving the polishing quality and reducing the processing cost.

[0047] Referring to Figure 3 and Figure 4 , specifically, in the embodiment of the present invention, regarding the pipe fixing mechanism 4, the pipe fixing mechanism 4 includes a tray 41, a supporting rod 42, a butting cylinder 43 and a locking unit. By sliding the butting cylinder 43 on the supporting rod 42, the linkage rod 45 and the driven rod 46 are driven to be linked, so that the clamping plates 44 can be synchronously linked, and the inner wall of the pipe is abutted by the clamping plates 44 to achieve the quick fixing effect for pipes with different diameters.

[0048] Specifically, two trays 41 are respectively rotatably connected to the first support plate 2 and the second support plate 3. The supporting rod 42 is fixed at the center of the tray 41. The butting cylinder 43 is slidably sleeved on the supporting rod 42. The locking unit for locking the pipe is arranged inside the butting cylinder 43. The locking unit includes clamping plates 44, a linkage rod 45 and a driven rod 46. A notch is penetrated through the butting cylinder 43, and the clamping plates 44 are slidably arranged in the notch. One end of the linkage rod 45 is rotatably connected inside the butting cylinder 43, and the other end is rotatably connected to the clamping plates 44. The driven rod 46 is rotatably connected between the supporting rod 42 and the clamping plates 44.

[0049] In the embodiment of the present invention regarding the pipe fixing mechanism 4, the pipe fixing mechanism 4 further includes an adjusting screw rod 47, a second servo motor 48, a telescopic rod 49, a first reset member 410 and a second reset member 411. The telescopic rod 49 is used to support and limit the abutting cylinder 43, and at the same time, the elastic forces of the first reset member 410 and the second reset member 411 enable the abutting cylinder 43 and the clamping plate 44 to quickly reset, so as to facilitate the next clamping operation. At the same time, the telescopic rod 49 is used to support and limit the abutting cylinder 43, and at the same time, the elastic forces of the first reset member 410 and the second reset member 411 enable the abutting cylinder 43 and the clamping plate 44 to quickly reset, so as to facilitate the next clamping operation.

[0050] In the embodiment of the present invention, the adjusting screw rod 47 is rotatably connected to the base 1, and a threaded hole is provided through the second support plate 3. The adjusting screw rod 47 is in threaded cooperation with the second support plate 3 through the threaded hole. The second servo motor 48 is fixed on one side of the base 1 close to the second support plate 3, and the output shaft of the second servo motor 48 is coaxially fixed to the adjusting screw rod 47. A through hole is provided through the third support plate 61. The adjusting screw rod 47 passes through the through hole and is slidably connected to the third support plate 61. The telescopic rod 49 is arranged between the tray 41 and the abutting cylinder 43. The first reset member 410 is sleeved on the telescopic rod 49. The second reset member 411 is arranged in the inner cavity of the abutting cylinder 43, and one end of the second reset member 411 abuts against the inner wall of the abutting cylinder 43, and the other end abuts against the supporting rod 42.

[0051] Refer to Figure 5 、 Figure 6 and Figure 7 Specifically, in the embodiment of the present invention regarding the polishing mechanism 6, the polishing mechanism 6 includes a third support plate 61, a limit seat 62 and a polishing unit. The first adjusting rod 64 and the second adjusting rod 65 are linked to make the polishing plate 66 attach to the outer wall of the pipe, and the rotation of the incomplete tooth ring 63 drives the polishing plate 66 to perform a circular motion, realizing the polishing effect on the outer wall of the pipe.

[0052] The third support plate 61 is slidably connected to the base 1. The limit seat 62 is fixed on the third support plate 61. The polishing unit for polishing is arranged in the limit seat 62. An incomplete tooth ring 63 is rotatably clamped in the limit seat 62. The polishing unit is arranged on the incomplete tooth ring 63. The polishing unit includes a first adjusting rod 64, a second adjusting rod 65 and a polishing plate 66. One end of the first adjusting rod 64 and one end of the second adjusting rod 65 are rotatably connected to each other. The polishing plate 66 is arranged at the connection of the first adjusting rod 64 and the second adjusting rod 65 and abuts against the pipe wall. The other end of the first adjusting rod 64 is rotatably connected to the incomplete tooth ring 63. The other end of the second adjusting rod 65 is slidably clamped on the incomplete tooth ring 63.

[0053] Refer to Figure 8 andFigure 9 In the embodiment of the present invention, the polishing mechanism 6 further includes a linkage gear 67, a passive disk 68, an active disk 69, a first belt 610, and a first transmission rod 611. The linkage gear 67 is rotatably connected in the limit seat 62 and meshes with the incomplete tooth ring 63. The passive disk 68 is coaxially fixed on one side of the linkage gear 67 and is located outside the limit seat 62. The active disk 69 is rotatably connected to the outer wall of the limit seat 62. The first belt 610 is arranged between the passive disk 68 and the active disk 69. The first transmission rod 611 is rotatably connected to the base 1, and through holes are provided through the center of the active disk 69 and the third support plate 61. The first transmission rod 611 is slidably connected in the through holes, and grooves are provided on the inner wall of the through holes. Protrusions are provided on the outer wall of the first transmission rod 611, and the protrusions are slidably matched with the grooves. The first transmission rod 611 is used to drive the active disk 69 to rotate, and then drive the passive disk 68 and the linkage gear 67 to rotate synchronously through the first belt 610, and then drive the incomplete tooth ring 63 to engage and link through the linkage gear 67.

[0054] Specifically, a second belt 612 is provided between the first transmission rod 611 and the tray 41 on the first support plate 2, and the second belt 612 is used to enable the first transmission rod 611 to rotate synchronously with the tray 41.

[0055] Refer to Figure 10 In the embodiment of the present invention, regarding the reciprocating mechanism 7, the reciprocating mechanism 7 includes a fixed seat 71, a driven lead screw 72, a driven sleeve 73, and a docking sleeve 74. By sliding the docking sleeve 74, its two ends are respectively engaged with two adjacent driven sleeves 73, so as to quickly adjust the rotation direction of the driven lead screw 72.

[0056] The fixed seat 71 is fixed on the base 1 on the side close to the first support plate 2. The driven lead screw 72 is slidably connected to the base 1 and the fixed seat 71. The driven sleeve 73 is rotatably connected to the fixed seat 71, and two are symmetrically arranged coaxially. The docking sleeve 74 is coaxially fixed on the driven lead screw 72 and is located between two adjacent driven sleeves 73. Tooth groove structures are provided at both ends of the docking sleeve 74 and at one end of two adjacent driven sleeves 73 close to each other. The docking sleeve 74 is engaged with one of the driven sleeves 73 through the tooth grooves.

[0057] Specifically, the reciprocating mechanism 7 further includes a clamping seat 75, a positioning rod 76, a locking rod 77, and a third reset member 78. The clamping seat 75 is fixed to one end of the base 1 away from the first support plate 2. The positioning rod 76 is slidably clamped in the clamping seat 75, and a clamping groove is provided on the positioning rod 76. The locking rod 77 is slidably connected in the clamping seat 75, and one end of the locking rod 77 is slidably abutted in the clamping groove. The third reset member 78 is sleeved on the locking rod 77, and one end of the third reset member 78 abuts against the clamping seat 75. The positioning rod 76 is limited by the locking rod 77, so that the docking sleeve 74 can be stably engaged with the corresponding driven sleeve 73 to avoid separation.

[0058] In the embodiment of the present invention, specifically, regarding the reciprocating mechanism 7, in the embodiment of the present invention, regarding the reciprocating mechanism 7, it further includes a driven bevel gear 79, a first driving bevel gear 710, a second transmission rod 711, a transmission bevel gear 712, a second driving bevel gear 713, and a driven bevel gear 714. By the meshing and linkage of the driven bevel gear 714 and the second driving bevel gear 713, the second transmission rod 711 and the tray 41 can rotate synchronously. At the same time, the transmission bevel gear 712 drives the first driving bevel gear 710 to mesh and link, and through the first driving bevel gear 710, two adjacent driven bevel gears 79 can mesh and move in opposite directions to each other.

[0059] The driven bevel gear 79 is coaxially fixed on the driven sleeve 73. The first driving bevel gear 710 is rotatably connected to the fixed seat 71 and meshes between two adjacent driven bevel gears 79. The second transmission rod 711 is rotatably connected to one side of the first support plate 2. The transmission bevel gear 712 is coaxially fixed to one end of the second transmission rod 711 and meshes with the first driving bevel gear 710. The second driving bevel gear 713 is coaxially fixed to the tray 41 on the first support plate 2. The driven bevel gear 714 is coaxially fixed to the other end of the second transmission rod 711 and meshes with the second driving bevel gear 713.

[0060] The implementation principle of a pipe polishing machine for polishing small-diameter pipes in the embodiment of the present invention is as follows: First, one end of the pipe to be polished is sleeved on the abutting cylinder 43 of the first support plate 2, and then the second servo motor 48 is started to drive the adjusting screw rod 47 to rotate. At this time, the second support plate 3 is in threaded linkage, and the abutting cylinder 43 on the second support plate 3 moves to the other end of the pipe. At the same time, the abutting cylinder 43 slides on the supporting rod 42. At this time, the linkage rod 45 and the driven rod 46 are synchronously linked, and the clamping plate 44 moves to abut against the inner wall of the pipe until the pipe is locked;

[0061] Then, adjust the first adjusting rod 64 and the second adjusting rod 65 to make the polishing plate 66 abut against the outer wall of the pipe. At this time, start the first servo motor 5. The first servo motor 5 drives the tray 41 and the whole pipe to rotate. At the same time, the second belt 612 drives the first transmission rod 611 to rotate. The first transmission rod 611 drives the driving disc 69 to rotate, and then drives the driven disc 68 and the linkage gear 67 to rotate synchronously through the first belt 610. Furthermore, the incomplete tooth ring 63 is driven to engage and link through the linkage gear 67, so that the polishing plate 66 rotates on the outer wall of the pipe.

[0062] And at the same time, the tray 41 drives the second driving bevel gear 713 to rotate synchronously. The driven bevel gear 714 engages and links with the second driving bevel gear 713, and drives the second transmission rod 711 and the transmission bevel gear 712 to rotate. The first driving bevel gear 710 is driven to engage and link through the transmission bevel gear 712, and through the first driving bevel gear 710, two adjacent driven bevel gears 79 can engage and move in opposite directions to each other. At this time, one end of the docking sleeve 74 engages with one of the driven sleeves 73 through the tooth groove, and drives the driven lead screw 72 to rotate. The third support plate 61 is in threaded linkage with the driven lead screw 72 and slides in the base 1. When the third support plate 61 moves to the first support plate 2 or the second support plate 3, the third support plate 61 cannot move any further. At this time, the driven lead screw 72 continues to rotate, and drives the positioning rod 76 to slide under the reverse acting force, so that the docking sleeve 74 moves and engages with the other driven sleeve 73, and the driven lead screw 72 rotates in the reverse direction.

[0063] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0064] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pipe polishing machine capable of polishing small diameter pipes, characterized in that: include: A base (1), wherein a first support plate (2) is fixed on one side of the base (1), and a second support plate (3) is slidably connected on the other side. A pipe fixing mechanism (4) is provided on the first support plate (2) and the second support plate (3). The pipe fixing mechanism (4) comprises a tray (41), a supporting rod (42), an abutting tube (43) and a locking unit. The two trays (41) are rotatably connected to the first support plate (2) and the second support plate (3), respectively. The supporting rod (42) is fixed at the axis of the tray (41), and the abutting tube (43) is slidably sleeved on the supporting rod (42). The locking unit for locking the pipe is arranged inside the abutting tube (43), and a first servo motor (5) is fixed on one side of the second support plate (3); A polishing mechanism (6), the polishing mechanism (6) being arranged on the base (1), the polishing mechanism (6) comprising a third support plate (61), a limit seat (62) and a polishing unit, the third support plate (61) being slidably connected to the base (1), the limit seat (62) being fixed on the third support plate (61), and the polishing unit for polishing being arranged in the limit seat (62); The base (1) is also provided with a reciprocating mechanism (7) for driving the polishing mechanism (6) to reciprocate.

2. A pipe polishing machine capable of polishing small-diameter pipes according to claim 1, characterized in that: The locking unit comprises a clamping plate (44), a linkage rod (45) and a driven rod (46); a slot is provided through the abutting tube (43); the clamping plate (44) is slidably provided in the slot; one end of the linkage rod (45) is rotatably connected in the abutting tube (43); the other end is rotatably connected to the clamping plate (44); the driven rod (46) is rotatably connected between the supporting rod (42) and the clamping plate (44).

3. A pipe polishing machine capable of polishing small-diameter pipes according to claim 1, characterized in that: The pipe fixing mechanism (4) also includes an adjusting screw (47) and a second servo motor (48); the adjusting screw (47) is rotatably connected to the base (1), and a screw hole is provided through the second support plate (3); the adjusting screw (47) is threadedly engaged with the second support plate (3) through the screw hole; the second servo motor (48) is fixed to a side of the base (1) close to the second support plate (3), and the output shaft of the second servo motor (48) is coaxially fixed to the adjusting screw (47); a through hole is provided through the third support plate (61); the adjusting screw (47) passes through the through hole and is slidably connected to the third support plate (61).

4. A pipe polishing machine capable of polishing small-diameter pipes according to claim 1, characterized in that: An incomplete toothed ring (63) is rotatably engaged in the limiting seat (62), and the polishing unit is arranged on the incomplete toothed ring (63), and the polishing unit comprises a first adjusting rod (64), a second adjusting rod (65) and a polishing plate (66), one end of the first adjusting rod (64) and the second adjusting rod (65) are rotatably connected to each other, the polishing plate (66) is arranged at the connection between the first adjusting rod (64) and the second adjusting rod (65), and abuts against the wall of the pipe, the other end of the first adjusting rod (64) is rotatably connected to the incomplete toothed ring (63), and the other end of the second adjusting rod (65) is slidably engaged with the incomplete toothed ring (63).

5. A pipe polishing machine capable of polishing small-diameter pipes according to claim 4, characterized in that: The polishing mechanism (6) further comprises a linkage gear (67), a passive disk (68), an active disk (69), a first belt (610) and a first transmission rod (611); the linkage gear (67) is rotatably connected in the limit seat (62) and meshes with the incomplete toothed ring (63); the passive disk (68) is coaxially fixed on one side of the linkage gear (67) and is located outside the limit seat (62); the active disk (69) is rotatably connected to the outer wall of the limit seat (62); the first belt (610) is arranged between the passive disk (68) and the active disk (69); the first transmission rod (611) is rotatably connected to the base (1); and through holes are provided at the axis of the active disk (69) and on the third support plate (61); the first transmission rod (611) is slidably connected in the through hole, and a groove is provided on the inner wall of the through hole; a protrusion is provided on the outer wall of the first transmission rod (611), and the protrusion and the groove are slidably matched.

6. A pipe polishing machine capable of polishing small-diameter pipes according to claim 5, characterized in that: A second belt (612) is provided between the first transmission rod (611) and the tray (41) on the first support plate (2).

7. A pipe polishing machine capable of polishing small-diameter pipes according to claim 1, characterized in that: The reciprocating mechanism (7) comprises a fixed seat (71), a driven screw rod (72), a driven sleeve (73) and a docking sleeve (74); the fixed seat (71) is fixed on a side of the base (1) close to the first support plate (2); the driven screw rod (72) is slidably connected to the base (1) and the fixed seat (71); the driven sleeve (73) is rotatably connected to the fixed seat (71) and two of them are coaxially symmetrically arranged; the docking sleeve (74) is coaxially fixed on the driven screw rod (72) and is located between two adjacent driven sleeves (73); both ends of the docking sleeve (74) and one end of the adjacent two driven sleeves (73) close to each other are provided with tooth groove structures; the docking sleeve (74) is meshed with one of the driven sleeves (73) through the tooth groove.

8. A pipe polishing machine capable of polishing small-diameter pipes according to claim 7, characterized in that: The reciprocating mechanism (7) further comprises a card seat (75), a positioning rod (76), a locking rod (77) and a third reset member (78); the card seat (75) is fixed to one end of the base (1) away from the first support plate (2); the positioning rod (76) is slidably engaged in the card seat (75), and a card slot is provided on the positioning rod (76); the locking rod (77) is slidably connected in the card seat (75), and one end of the locking rod (77) is slidably abutted in the card slot; the third reset member (78) is sleeved on the locking rod (77), and one end of the third reset member (78) abuts against the card seat (75).

9. A pipe polishing machine capable of polishing small-diameter pipes according to claim 8, characterized in that: The reciprocating mechanism (7) further comprises a passive bevel gear (79), a first active bevel gear (710), a second transmission rod (711), a transmission bevel gear (712), a second active bevel gear (713) and a driven bevel gear (714); the passive bevel gear (79) is coaxially fixed on the driven sleeve (73); the first active bevel gear (710) is rotatably connected to the fixing seat (71) and meshes between two adjacent passive bevel gears (79); the second transmission rod (711) is rotatably connected to one side of the first support plate (2); the transmission bevel gear (712) is coaxially fixed to one end of the second transmission rod (711) and meshes with the first active bevel gear (710); the second active bevel gear (713) is coaxially fixed to the tray (41) on the first support plate (2); and the driven bevel gear (714) is coaxially fixed to the other end of the second transmission rod (711) and meshes with the second active bevel gear (713).

10. A pipe polishing machine capable of polishing small-diameter pipes according to claim 1, characterized in that: The pipe fixing mechanism (4) further comprises a telescopic rod (49), a first restoring member (410) and a second restoring member (411); the telescopic rod (49) is arranged between the tray (41) and the abutting tube (43); the first restoring member (410) is sleeved on the telescopic rod (49); the second restoring member (411) is arranged in the inner cavity of the abutting tube (43); one end of the second restoring member (411) abuts against the inner wall of the abutting tube (43); and the other end abuts against the supporting rod (42).

Images