阅读说明：本技术 一种应用于打磨锥度管内壁的打磨机构 (Polishing mechanism applied to polishing of inner wall of taper pipe ) 是由 陈清蓉 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种应用于打磨锥度管内壁的打磨机构,它包括底架、支撑座、轴向驱动装置、螺杆和螺母,支撑座固定在底架的一端,底架上并排设有两个支撑组件,支撑组件用于支撑锥度管,轴向驱动装置设于支撑座的一侧,螺杆的一端固定在支撑座的另一侧,所述螺杆的螺纹升角大于螺纹自锁角,螺母螺纹连接在螺杆上,螺母套设有旋转轴,旋转轴的外壁沿周向方向间隔设置有三个内壁打磨装置,轴向驱动装置用于带动螺母沿轴向方向移动,内壁打磨装置包括打磨组件和两个三级弹簧伸缩件,两个三级弹簧伸缩件并排固定在旋转轴上,打磨组件与两个三级弹簧伸缩件的自由端连接；通过本发明能够实现打磨机械化操作,提高打磨效率,减轻劳动强度。(The invention discloses a polishing mechanism applied to polishing the inner wall of a taper pipe, which comprises an underframe, a supporting seat, an axial driving device, a screw rod and a nut, wherein the supporting seat is fixed at one end of the underframe, two supporting components are arranged on the underframe side by side and used for supporting the taper pipe, the axial driving device is arranged at one side of the supporting seat, one end of the screw rod is fixed at the other side of the supporting seat, the thread lead angle of the screw is larger than the thread self-locking angle, the nut is in threaded connection with the screw, the nut sleeve is provided with a rotating shaft, three inner wall polishing devices are arranged on the outer wall of the rotating shaft at intervals along the circumferential direction, an axial driving device is used for driving the nut to move along the axial direction, each inner wall polishing device comprises a polishing assembly and two three-stage spring telescopic pieces, the two three-stage spring telescopic pieces are fixed on the rotating shaft side by side, and the polishing assemblies are connected with the free ends of the two three-stage spring telescopic pieces; the invention can realize mechanical polishing operation, improve polishing efficiency and reduce labor intensity.)

1. The polishing mechanism for polishing the inner wall of the taper pipe is characterized by comprising an underframe (1), a supporting seat (2), an axial driving device (3), a screw rod (4) and a nut (5), wherein the supporting seat (2) is fixed at one end of the underframe (1), two supporting components (6) are arranged on the underframe (1) side by side, the supporting components (6) are used for supporting the taper pipe, the axial driving device (3) is arranged on one side of the supporting seat (2), one end of the screw rod (4) is fixed at the other side of the supporting seat (2), a thread lead angle of the screw rod (4) is larger than a thread self-locking angle, the nut (5) is in threaded connection with the screw rod (4), the nut (5) is sleeved with a rotating shaft (7), and three inner wall polishing devices (8) are arranged on the outer wall of the rotating shaft (7) at intervals along the circumferential direction, axial drive arrangement (3) are used for driving nut (5) and remove along axial direction, inner wall grinding device (8) are including polishing subassembly (81) and two tertiary spring extensible member (82), two tertiary spring extensible member (82) are fixed side by side on rotation axis (7), polishing subassembly (81) is connected with the free end of two tertiary spring extensible member (82).

2. The grinding mechanism applied to grinding the inner wall of the taper pipe according to claim 1, wherein the grinding assembly (81) comprises a mounting block (811), a grinding holder (812) and a grinding driving motor (813), two ends of the mounting block (811) are respectively hinged with two three-stage spring expansion members (82), the grinding holder (812) is fixed on the mounting block (811), the grinding driving motor (813) is fixed on the grinding holder (812), two symmetrically arranged grinding wheels (814) are connected to the grinding holder (812) through a rotating shaft, and the other end of the rotating shaft is in transmission connection with an output end of the grinding driving motor (813) through a bevel gear (815).

3. The polishing mechanism as claimed in claim 2, wherein the three-stage spring extension member (82) comprises a first stage sleeve (821), a second stage sleeve (822), a third stage sleeve (823), a first spring (824), a second spring (825), a third spring (826) and a guide tube (827), the second stage sleeve (822) is sleeved in the first stage sleeve (821), the third stage sleeve (823) is sleeved in the second stage sleeve (822), the guide tube (827) is sleeved in the third stage sleeve (823), the first spring (824) is disposed in the first stage sleeve (821) and two ends thereof are respectively abutted against the first stage sleeve (821) and the second stage sleeve (822), the second spring (825) is disposed in the second stage sleeve (822) and two ends thereof are respectively abutted against the second stage sleeve (822) and the third stage sleeve (823), and the third spring (826) is arranged in the third-stage sleeve (823), and two ends of the third spring are abutted against the third-stage sleeve (823) and the guide cylinder (827).

4. The grinding mechanism for grinding the inner wall of the taper pipe according to claim 1, wherein the axial driving device (3) comprises a driving cylinder (31), a butterfly-shaped connecting block (32) and three pull rods (33), an output end of the driving cylinder (31) is fixedly connected with the butterfly-shaped connecting block (32), one ends of the three pull rods (33) are respectively connected to the butterfly-shaped connecting block (32), and the other ends of the three pull rods (33) respectively movably penetrate through the supporting seat (2) and are connected with the nut (5) through a flange seat (34) and a ball bearing (35).

5. The grinding mechanism applied to grind the inner wall of the taper pipe according to claim 1, wherein the supporting assembly (6) comprises a supporting cylinder (61), a supporting plate (62) and two supporting blocks (63), the supporting cylinder (61) is fixed on the base frame (1), the middle part of the supporting plate (62) is connected with the output end of the supporting cylinder (61), and the two supporting blocks (63) are respectively and symmetrically arranged on the top surface of the supporting plate (62).

6. The grinding mechanism applied to the inner wall of the taper pipe is characterized in that two ends of the bottom surface of the supporting plate (62) are respectively connected with a guide rod (64), and the other end of the guide rod (64) extends downwards and is connected with the chassis (1) through a linear bearing.

7. The grinding mechanism applied to the inner wall of the taper pipe is characterized in that two ends of the bottom surface of the supporting plate (62) are respectively connected with a guide rod (64), and the other end of the guide rod (64) extends downwards and is connected with the chassis (1) through a linear bearing.

Technical Field

The invention relates to the technical field of polishing equipment, in particular to a polishing mechanism applied to polishing of the inner wall of a taper pipe.

Background

The taper pipe is formed through the pipeline concatenation of different pipe diameters, and the pipe connection department of two different pipe diameters has defects such as weld beading, welding slag and rusty spot that produce when welding to and the inner wall surface of taper pipe is more crude, to these problems, often all is that manual hand-held grinding tool polishes the pipeline inner wall, and the efficiency of polishing of this kind of mode is low, and intensity of labour is big.

Disclosure of Invention

The invention aims to overcome the defects and provide a polishing mechanism applied to polishing the inner wall of a taper pipe.

In order to achieve the purpose, the invention adopts the following specific scheme:

a polishing mechanism applied to polishing the inner wall of a taper pipe comprises an underframe, a supporting seat, an axial driving device, a screw rod and a nut, the supporting seat is fixed at one end of the bottom frame, two supporting components are arranged on the bottom frame side by side and used for supporting the taper pipe, the axial driving device is arranged on one side of the supporting seat, one end of the screw rod is fixed on the other side of the supporting seat, the lead angle of the screw is larger than the self-locking angle of the screw, the nut is connected with the screw in a threaded manner, the nut sleeve is provided with a rotating shaft, the outer wall of the rotating shaft is provided with three inner wall polishing devices at intervals along the circumferential direction, the axial driving device is used for driving the nut to move along the axial direction, the inner wall polishing device comprises a polishing assembly and two three-level spring telescopic pieces, the two three-level spring telescopic pieces are fixed on the rotating shaft side by side, and the polishing assembly is connected with the free ends of the two three-level spring telescopic pieces.

The polishing assembly comprises an installation block, a polishing holder and a polishing driving motor, wherein two ends of the installation block are hinged to two three-stage spring expansion pieces respectively, the polishing holder is fixed to the installation block, the polishing driving motor is fixed to the polishing holder, two symmetric polishing wheels are connected to the polishing holder through rotating shafts, and the other end of each rotating shaft is in transmission connection with the output end of the polishing driving motor through a bevel gear.

Wherein, tertiary spring extensible member includes first order sleeve, second level sleeve, third level sleeve, first spring, second spring, third spring and guide cylinder, second level sleeve cover is located in the first order sleeve, third level sleeve cover is located in the second level sleeve, the guide cylinder cover is located in the third level sleeve, first spring is located in the first order sleeve, and its both ends lean on with first order sleeve and second level sleeve top respectively, the second spring is located in the second level sleeve, and its both ends lean on with second level sleeve and third level sleeve top respectively, the third spring is located in the third level sleeve, and its both ends decibel lean on with third level sleeve and guide cylinder top.

The axial driving device comprises a driving cylinder, a butterfly-shaped connecting block and three pull rods, the output end of the driving cylinder is fixedly connected with the butterfly-shaped connecting block, one ends of the three pull rods are respectively connected to the butterfly-shaped connecting block, and the other ends of the three pull rods respectively movably penetrate through a supporting seat and are connected with a nut through a flange seat and a ball bearing.

The supporting assembly comprises a supporting cylinder, a supporting plate and two supporting blocks, the supporting cylinder is fixed on the bottom frame, the middle of the supporting plate is connected with the output end of the supporting cylinder, and the two supporting blocks are symmetrically arranged on the top surface of the supporting plate respectively.

The two ends of the bottom surface of the supporting plate are respectively connected with a guide rod, and the other end of the guide rod extends downwards and is connected with the bottom frame through a linear bearing.

The invention has the beneficial effects that: compared with the prior art, the inner wall polishing device is provided with the polishing assembly connected with the three-stage spring telescopic piece, the movable radius of the polishing assembly is adjusted through the extension and contraction of the three-stage spring telescopic piece so as to adapt to the inner walls of the taper pipes with different pipe diameters, and then the polishing assembly moves axially under the driving of the axial driving device, so that the inner walls of the taper pipes are polished, the mechanical operation is realized, the polishing efficiency is improved, and the labor intensity is greatly reduced.

Drawings

FIG. 1 is a schematic diagram of a first perspective of a grinding mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a second perspective of a grinding mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a portion of a grinding mechanism provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an inner wall polishing device provided in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a three-stage spring retractor according to an embodiment of the present invention;

description of reference numerals: 1-a chassis; 2-a support seat; 3-an axial drive; 31-a drive cylinder; 32-butterfly connection block; 33-a pull rod; 34-a flange seat; 35-ball bearings; 4-screw rod; 5-a nut; 6-a support assembly; 61-a support cylinder; 62-a support plate; 63-a support block; 64-a guide bar; 7-a rotating shaft; 8-an inner wall polishing device; 81-grinding the assembly; 811-mounting block; 812-grinding the retainer; 813-grinding the driving motor; 814-grinding wheel; 815-a bevel gear; 82-three stage spring extension; 821-a first stage sleeve; 822-a second stage sleeve; 823-third stage sleeve; 824-a first spring; 825-a second spring; 826-a third spring; 827-guide cylinder; 828-connecting head.

Detailed Description

The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.

As shown in fig. 1 to 5, the polishing mechanism applied to polish the inner wall of a taper pipe in this embodiment includes an underframe 1, a supporting seat 2, an axial driving device 3, a screw rod 4 and a nut 5, where the supporting seat 2 is fixed at one end of the underframe 1, two supporting assemblies 6 are arranged on the underframe 1 side by side, the supporting assemblies 6 are used to support the taper pipe, the axial driving device 3 is arranged at one side of the supporting seat 2, one end of the screw rod 4 is fixed at the other side of the supporting seat 2 through an installation seat, a lead angle of the screw rod 4 is greater than a thread self-locking angle, the nut 5 is in threaded connection with the screw rod 4, the nut 5 is sleeved with a rotating shaft 7, three inner wall polishing devices 8 are arranged on the outer wall of the rotating shaft 7 at intervals along a circumferential direction, the axial driving device 3 is used to drive the nut 5 to move along the axial direction, each inner wall polishing device 8 includes a, the two three-stage spring expansion pieces 82 are fixed on the rotating shaft 7 side by side, and the grinding assembly 81 is connected with the free ends of the two three-stage spring expansion pieces 82.

Specifically, when in use, the taper pipe to be polished is placed on the two supporting assemblies 6, the two supporting assemblies 6 support the taper pipe, the screw rod 4, the nut 5 and the inner wall polishing device 8 all extend into the taper pipe, in the extending process, the polishing assembly 81 is in contact with the inner wall of the taper pipe with different pipe diameters under the action of the two three-stage spring expansion pieces 82, then the polishing assembly 81 works to polish the inner wall of the taper pipe, meanwhile, the axial driving device 3 drives the nut 5 to move along the axial direction, and the nut 5 is in threaded connection with the screw rod 4, therefore, the nut 5 is continuously rotated in the axial moving process and can drive the rotating shaft 7 to rotate, the rotating shaft 7 can drive the inner wall polishing device 8 to rotate, and then the inner wall of the taper pipe is polished, the pipe diameter of the taper pipe is gradually changed from one end to the other end, and the polishing assembly 81 is connected with the two three-stage spring expansion pieces 82, the movable radius of the polishing component 81 is changed by the extension and contraction of the three-stage spring telescopic piece 82, so that the polishing component 81 can be always in contact with the inner wall of the taper pipe, and the polishing work of the inner wall of the whole taper pipe is completed.

In this embodiment, the inner wall polishing device 8 is provided with the polishing assembly 81 connected with the tertiary spring extensible member 82, and the movable radius of the polishing assembly 81 is adjusted by extension and contraction of the tertiary spring extensible member 82 so as to adapt to the inner walls of the taper pipes with different pipe diameters, and then the polishing assembly moves axially under the drive of the axial driving device 3, so that polishing of the inner walls of the taper pipes is realized, mechanical operation is performed, the polishing efficiency is improved, and the labor intensity is greatly reduced.

Based on the above embodiment, further, as shown in fig. 4, the polishing assembly 81 includes a mounting block 811, a polishing holder 812 and a polishing driving motor 813, two ends of the mounting block 811 are respectively hinged to the two three-stage spring expansion members 82, the polishing holder 812 is fixed on the mounting block 811, the polishing driving motor 813 is fixed on the polishing holder 812, the polishing holder 812 is connected with two symmetrically arranged polishing wheels 814 through a rotating shaft, and the other end of the rotating shaft is in transmission connection with an output end of the polishing driving motor 813 through a bevel gear 815; specifically, during polishing, the polishing driving motor 813 drives the rotating shafts to rotate through the bevel gear 815, the two rotating shafts drive the two polishing wheels 814 to rotate, and then the inner wall of the taper pipe can be polished, the two tertiary spring expansion pieces 82 adjust the moving radii of the two polishing wheels 814 according to the pipe diameter change of the inner wall of the taper pipe, so that the two polishing wheels 814 are kept in contact with the inner wall of the taper pipe, and the polishing effect is guaranteed.

Based on the above embodiments, as shown in fig. 5, the three-stage spring extension member 82 includes a first-stage sleeve 821, a second-stage sleeve 822, a third-stage sleeve 823, a first spring 824, a second spring 825, a third spring 826, and a guide cylinder 827, the second-stage sleeve 822 is sleeved in the first-stage sleeve 821, the third-stage sleeve 823 is sleeved in the second-stage sleeve 822, the guide cylinder 827 is sleeved in the third-stage sleeve 823, the first spring 824 is disposed in the first-stage sleeve 821, two ends of the first spring respectively abut against the first-stage sleeve 821 and the second-stage sleeve 822, the second spring 825 is disposed in the second-stage sleeve 822, two ends of the second spring respectively abut against the second-stage sleeve 822 and the third-stage sleeve 823, the third spring 826 is disposed in the third-stage sleeve 823, two ends of the third spring 823 respectively abut against the third-stage sleeve 823 and the guide cylinder 827, 828 is provided with an embedded joint therein 828, the connector 828 is hinged with the mounting block 811; specifically, when the movable radius of the grinding assembly 81 is adjusted, the first spring 824, the second spring 825 and the third spring 826 are gradually contracted or extended, so that the second-stage sleeve 822, the third-stage sleeve 823 and the guide tube 827 are driven to move in a telescopic manner, the guide tube 827 provides flexible support for the grinding assembly 81, the movable radius of the grinding assembly 81 can be adjusted, the pipe diameter of the inner wall of the taper pipe is adapted to change, and the structure is simple and flexible.

Based on the above embodiment, as shown in fig. 1 to 3, the axial driving device 3 includes a driving cylinder 31, a butterfly connecting block 32 and three pull rods 33, an output end of the driving cylinder 31 is fixedly connected with the butterfly connecting block 32, one ends of the three pull rods 33 are respectively connected to the butterfly connecting block 32, and the other ends of the three pull rods 33 respectively movably penetrate through the supporting seat 2 and are connected with the nut 5 through a flange seat 34 and a ball bearing 35; the during operation drives actuating cylinder 31 and drives butterfly connecting block 32 and remove, butterfly connecting block 32 drives three pull rod 33 and removes, three pull rod 33 passes through flange seat 34 pulling nut 5 and removes, and the cooperation has ball bearing 35 between nut 5 and the flange seat 34, therefore, nut 5 carries out spiral removal on screw rod 4, and then can drive rotation axis 7 and rotate, rotation axis 7 drives inner wall grinding device 8 and carries out 360 degrees rotations, the realization is to polishing in the tapering intraductal ground, mechanized operation, the efficiency of polishing is improved, adopt the cylinder structure, and the cost is saved.

Based on the above embodiment, as shown in fig. 1 to fig. 3, the supporting assembly 6 includes a supporting cylinder 61, a supporting plate 62 and two supporting blocks 63, the supporting cylinder 61 is fixed on the base frame 1, the middle portion of the supporting plate 62 is connected to the output end of the supporting cylinder 61, and the two supporting blocks 63 are respectively symmetrically disposed on the top surface of the supporting plate 62; during operation, the taper pipe to be polished is placed between the four supporting blocks 63, the four supporting blocks 63 limit the rolling of the taper pipe, then the two supporting cylinders 61 adjust the height of the taper pipe at the same time, so that the axial center line of the screw rod 4 coincides with the axial center line of the taper pipe, each polishing wheel 814 can contact with the inner wall of the taper pipe, and the polishing operation is guaranteed to be normally performed.

Further, the bottom surface both ends of backup pad 62 are connected with guide bar 64 respectively, the other end downwardly extending of guide bar 64 to be connected with chassis 1 through linear bearing, set up guide bar 64, can make backup pad 62 remove more steadily, do benefit to the position of accurate adjustment taper pipe, the structure is more reliable.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.