Axial polishing mechanism and steel pipe inner wall polishing machine containing the same

Abstract

The application discloses an axial polishing mechanism and a steel pipe inner wall polishing machine containing the same, and belongs to the technical field of metal polishing. The axial polishing mechanism comprises a support, a polishing disc, a driving assembly, a supporting mechanism and an inclination driving mechanism. The top surface of the support is obliquely arranged. A moving assembly for adjusting the position of the driving assembly is arranged between the bottom end of the driving assembly and the top surface of the support. The driving assembly comprises a rotating chuck and a motor for driving the rotation of the rotating chuck. The rotating chuck is connected with an axially telescopic rotating shaft. The end of the rotating shaft is fixedly connected with the polishing disc. The axial polishing mechanism dynamically adjusts the inclination angle of the steel pipe through the inclination driving mechanism, so that the iron filings generated in the polishing process are continuously guided out of the pipe cavity under the action of gravity and centrifugal force. The pipe diameter self-adaptive mechanism uses the composite motion constraint of the inclined groove and the transverse groove to forcibly realize the synchronous lifting of the supporting height when the distance between the driven rollers is expanded, so that the inner wall of the steel pipe with different diameters can always be in contact with the polishing disc.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal polishing, in particular to an axial polishing mechanism and a steel pipe inner wall polishing machine comprising the same. BACKGROUND

[0002] Polishing is a processing method that improves the brightness and flatness of a workpiece surface by modifying the surface of the workpiece with a polishing tool. A polishing mechanism is a component framework of a polishing device.

[0003] Steel pipes need to be deburred after production, and the inner and outer walls of steel pipes used for a long time will rust and also need to be polished.

[0004] The existing polishing method is to extend the polishing head to the inner wall of the steel pipe for polishing by using a motor. The steel pipe is placed horizontally, so that the iron filings and impurities generated during polishing will deposit at the bottom of the inner wall of the steel pipe. During polishing, a large amount of iron filings will participate in the contact between the polishing head and the inner wall of the steel pipe, causing secondary scratches, which directly affects the polishing quality, efficiency and safety.

[0005] Therefore, the existing needs are not met, and for this purpose, we propose an axial polishing mechanism and a steel pipe inner wall polishing machine comprising the same. SUMMARY

[0006] To this end, the present application provides an axial polishing mechanism and a battery module comprising the same to solve the above problems in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] According to the first aspect of the present application, an axial polishing mechanism comprises a support, a polishing disc, a driving assembly, a supporting mechanism and an inclination driving mechanism;

[0009] The top surface of the support is inclined, and a moving assembly for adjusting the position between the bottom end of the driving assembly and the top surface of the support is installed. The driving assembly comprises a rotary chuck and a motor for driving the rotation thereof. The rotary chuck is connected to an axially telescopic shaft, and the end of the shaft is fixedly connected to the polishing disc.

[0010] The supporting mechanism comprises a cross plate and a supporting frame on the top thereof. Inclined grooves are formed on both sides of the supporting frame, and an adjusting block is slidably connected in the inclined grooves. The adjusting block is rotatably connected to a driven roller. The adjusting block is connected to a telescopic rod through a lifting frame. The telescopic rod drives the lifting frame to link the adjusting block, so that the two driven rollers are synchronously lifted in height when the distance between them is increased, ensuring that the inner wall of the steel pipe of different diameters always contacts the polishing disc.

[0011] The shaft is detachably connected to an extension rod, and the rotary chuck is provided with a transverse guide groove and a transverse guide block of the shaft / extension rod that is slidably matched.

[0012] The driving assembly side is provided with a sliding assembly, which is rolled and locked with the annular clamping groove of the rotating shaft / extension rod through the U-shaped clamping plate, and the rotating shaft is axially fed.

[0013] Further, the adjusting block is composed of the sliding block one, the circular connecting sleeve and the sliding block two, the sliding block one slides obliquely along the inclined groove, the sliding block two slides horizontally along the transverse groove of the lifting frame, and the forced motion chain of the spacing expansion and height lifting is formed.

[0014] Further, the lifting frame is fixed to the lifting plate through the connecting rod, and the telescopic rods are respectively fixed to the bottom of the lifting plate and the top of the horizontal plate.

[0015] Further, the rotating chuck is provided with a through hole, the inner wall of the through hole is provided with an annular array of transverse guide grooves, and the outer wall of the rotating shaft and the extension rod is correspondingly provided with transverse guide blocks.

[0016] Further, the inner wall of the U-shaped clamping plate is embedded with a ball, and the annular rolling groove of the rotating shaft / extension rod is rolled and matched, and the U-shaped clamping plate is connected to the telescopic rod four to open and close.

[0017] Further, the telescopic rod four is fixed to the moving plate, the L-shaped plate is arranged below the moving plate, the telescopic rod five is mounted on the side wall of the L-shaped plate, and the output end of the telescopic rod five is connected with the moving plate.

[0018] Further, the supporting mechanism comprises a driving roller, the driving roller is pressed to the surface of the steel pipe through the telescopic rod one, and the driving motor is connected through the belt pulley and the belt.

[0019] Further, the driving roller is provided with a resisting mechanism to constrain the axial displacement of the steel pipe.

[0020] Further, the moving assembly comprises a supporting frame fixedly installed at the top end of the support, the telescopic rod six is fixedly installed on the side wall of the supporting frame, the output end of the telescopic rod six is fixedly connected with the bottom end of the moving frame, the slide sleeve is fixedly installed on the both sides of the bottom end of the moving frame, the guide rail is fixedly installed on the both sides of the top end of the supporting frame, the inner wall of the slide sleeve is slidably connected with the outer wall of the guide rail, and the movement of the supporting frame is guided through the sliding connection of the slide and the guide rail.

[0021] A steel pipe inner wall polishing machine with an axial polishing mechanism adopts the axial polishing mechanism

[0022] The present application has the following advantages:

[0023] The axial polishing mechanism dynamically adjusts the inclination angle of the steel pipe through the tilting driving mechanism, so that the iron filings generated by polishing are continuously discharged from the pipe cavity under the action of gravity and centrifugal force, and secondary scratch of the iron filings is completely avoided; the pipe diameter self-adaptive mechanism uses the composite motion constraint of the inclined chute and the transverse chute to forcibly realize the synchronous lifting of the support height when the distance between the driven rollers is expanded, so that the inner wall of the steel pipe with different diameters always keeps in contact with the polishing disc; combined with the modular shaft extension system, the torque transmission and the rolling locking type axial sliding mechanism of the detachable extension rod are used to break through the length limit of the traditional shaft, and the three functional modules are organically coordinated to simultaneously solve the problems of iron filings accumulation, pipe diameter compatibility and long pipe machining, so that the surface smoothness and machining continuity are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view of an axial polishing mechanism according to the present application;

[0025] Figure 2 It is a front view of an axial polishing mechanism according to the present application; Figure 1 It is an exploded schematic front view;

[0026] Figure 3 It is a front view of an axial polishing mechanism according to the present application; Figure 1 It is an exploded schematic front view of the driving mechanism;

[0027] Figure 4 It is a front view of a support frame;

[0028] Figure 5 It is a front view of an adjusting block;

[0029] Figure 6 It is a front view of a driving roller;

[0030] Figure 7 It is a front view of an L-shaped plate;

[0031] Figure 8 It is a through hole sectional view.

[0032] In the figure: 1, support; 201, polishing disc; 202, rotating shaft; 3, driving mechanism; 301, moving frame; 4, driving assembly; 401, motor; 402, rotary chuck; 403, through hole; 404, transverse guide groove; 405, transverse guide block; 406, annular clamping groove; 407, annular rolling groove; 408, U-shaped clamping plate; 409, moving plate; 410, telescopic rod four; 411, ball; 412, guide rod; 413, L-shaped plate; 414, telescopic rod five; 415, extension rod; 5, moving assembly; 501, support frame; 502, guide rail; 503, sliding sleeve; 504, telescopic rod six; 601, cross plate; 602, support frame; 603, driven roller; 604, driving roller; 605, U-shaped frame one; 606, telescopic rod one; 607, U-shaped frame two; 608, driving motor; 609, roller; 610, rotating shaft one; 611, pulley; 612, belt; 7, resisting mechanism; 701, resisting plate; 702, L-shaped frame; 703, telescopic rod two; 8, adjusting mechanism; 801, inclined chute;

[0033] 802, adjusting block; 803, sliding block one; 804, sliding block two; 805, circular connecting sleeve; 806, lifting frame; 807, transverse groove; 808, connecting rod; 809, lifting plate; 810, telescopic rod; 811, residue temporary storage groove; 9, inclined driving mechanism; 901, telescopic rod three; 902, resisting rod; 903, limiting frame. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in detail with specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] Embodiment 1;

[0036] Reference Figures 1-8 An axial polishing mechanism, comprising a support 1, the top surface of the support 1 is inclined, a polishing disc 201 is arranged at the left top end of the support 1, and a driving mechanism 3 connected with the polishing disc 201 is arranged for driving the polishing disc 201 to rotate and move;

[0037] A supporting mechanism for placing and driving the steel pipe to rotate is arranged at the right side of the support 1, and an inclined driving mechanism 9 is connected to the bottom of the supporting mechanism for driving the supporting mechanism to be inclined to match the polishing disc 201;

[0038] In use, the steel pipe is placed on the support mechanism, the tilting driving mechanism 9 drives the steel pipe placed on the support mechanism to tilt, and then cooperates with the polishing disc 201 driven by the driving mechanism 3 to polish the inner wall of the steel pipe;

[0039] Specifically, the driving mechanism 3 comprises a moving frame 301, a moving assembly 5 is installed between the bottom end of the moving frame 301 and the top of the support 1, a driving assembly 4 is installed on the moving frame 301, the driving assembly 4 comprises a motor 401 fixedly installed on the left top end of the moving frame 301, a rotating chuck 402 is rotatably connected to the right lower side of the moving frame 301, and the output end of the motor 401 is in transmission connection with the rotating chuck 402; the inside of the rotating chuck 402 is fixedly clamped with a rotating shaft 202, and the output end of the rotating shaft 202 is fixedly connected with the polishing disc 201;

[0040] In use, the rotating chuck 402 is driven by the motor 401 to rotate, the rotating chuck 402 drives the rotating shaft 202 and the polishing disc 201 fixedly connected with the output end of the rotating shaft 202 to rotate, and at the same time, the moving assembly 5 drives the moving frame 301 and the rotating polishing disc 201 on the moving frame 301 to polish and polish the inner wall of the steel pipe;

[0041] The moving assembly 5 comprises a support frame 501 fixedly installed on the top end of the support 1, a telescopic rod six 504 fixedly installed on the side wall of the support frame 501, an output end of the telescopic rod six 504 fixedly connected with the bottom end of the moving frame 301, a sliding sleeve 503 fixedly installed on both sides of the bottom end of the moving frame 301, a guide rail 502 fixedly installed on both sides of the top end of the support frame 501, the inner wall of the sliding sleeve 503 in sliding connection with the outer wall of the guide rail 502, and the movement of the support frame 501 is guided through the sliding connection of the sliding sleeve 503 and the guide rail 502; in use, the telescopic rod six 504 is controlled to drive the support frame 501 to move, thereby driving the support frame 501 and the driving mechanism 3 installed on the support frame 501 to move;

[0042] The support mechanism comprises a horizontal plate 601, support frames 602 fixedly connected with both sides of the top end of the horizontal plate 601, driven rollers 603 rotatably connected with both sides of the support frame 602, drive rollers 604 provided above the middle portions of the two driven rollers 603, and a belt connected with the top end of the drive roller 604 to drive the telescopic rod one 606 to ascend and descend; in use, the steel pipe is placed above the two driven rollers 603, and then the telescopic rod one 606 is controlled to push the drive roller 604 to descend and contact the top end of the steel pipe, so that the steel pipe is driven by the drive roller 604 to rotate;

[0043] The top end of the telescopic rod one 606 is connected with a U-shaped frame one 605;

[0044] The inclination driving mechanism 9 comprises a limiting frame 903 fixedly installed at the bottom ends of the two sides of the horizontal plate 601, the inner wall of the limiting frame 903 is slidably connected with an abutting rod 902, the lower portion of the abutting rod 902 is provided with the telescopic rod three 901, the bottom end of the telescopic rod three 901 is rotatably connected with the inner wall bottom end of the support 1, the output end is fixedly connected with the abutting rod 902, the right end of the horizontal plate 601 is rotatably connected with the support 1, in use, the telescopic rod three 901 is controlled to stretch or retract to drive one end of the horizontal plate 601 to ascend or descend, so as to adjust the inclination angle of the horizontal plate 601;

[0045] The second specific: the driving roller 604 comprises a U-shaped frame two 607, the top end of the U-shaped frame two 607 is fixedly connected with the output end of the telescopic rod one 606, the inner side of the U-shaped frame two 607 is provided with a roller 609, the two ends of the roller 609 are fixedly connected with a rotating shaft one 610, the outer wall of the rotating shaft one 610 is rotatably connected with the inner side of the U-shaped frame two 607, a driving motor 608 is installed above one side of the U-shaped frame two 607, the output end of the driving motor 608 and the outer wall of the rotating shaft one 610 are fixedly installed with a belt pulley 611, the two belt pulleys 611 are drivingly connected through a belt 612; in use, the telescopic rod one 606 is controlled to push the driving roller 604 to descend and contact the top end of the steel pipe, the driving motor 608 is controlled to drive the roller 609 to rotate through the transmission of the two belt pulleys 611 and the belt 612, and the steel pipe is driven to rotate through the roller 609;

[0046] Further, the above scheme does not resist one side of the steel pipe, and the steel pipe will move downward when the steel pipe is inclined, therefore, the resisting mechanism 7 is arranged on the side wall of the U-shaped frame two 607, the resisting mechanism 7 comprises an L-shaped frame 702 fixedly installed on the side wall of the U-shaped frame two 607, a telescopic rod two 703 is fixedly installed on the inner side of the L-shaped frame 702, the output end of the telescopic rod two 703 is fixedly connected with a resisting plate 701 penetrating through the L-shaped frame 702, in use, the telescopic rod two 703 is controlled to drive the resisting plate 701 to move and abut against the end portion of the steel pipe on the lower side to limit it;

[0047] Working principle: first, the steel pipe is loaded on the driven roller 603 of the supporting mechanism, the telescopic rod three 901 in the inclination driving mechanism 9 is controlled to push the horizontal plate 601 to adjust the inclination angle of the steel pipe, so that the axis line thereof is accurately matched with the rotation axis line of the polishing disc; then the telescopic rod one 606 in the driving roller 604 is controlled to press down the roller 609 to contact the surface of the steel pipe, the driving motor 608 drives the steel pipe to rotate at a constant speed through the transmission of the belt 612, and the telescopic rod two 703 of the resisting mechanism 7 pushes the resisting plate 701 to abut against the low end surface of the steel pipe to prevent axial sliding; finally, the motor 401 of the driving mechanism 3 drives the rotating chuck 402 and the polishing disc 201 to rotate at a high speed, the telescopic rod six 504 in the moving assembly 5 pushes the supporting frame 501 to feed along the guide rail 502 in the axial direction, so that the rotating polishing disc 201 completes the reciprocating polishing motion in the inner cavity of the steel pipe, realizing the cooperative machining of the steel pipe rotation and the axial feeding of the polishing disc.

[0048] Due to the inclination of the steel pipe, the iron filings will fall downward during polishing, and at the same time the steel pipe will rotate, driving the iron filings polished downward to be finally discharged, through the dynamic chip removal design of the three-in-one of inclination + rotation + opening direction, the problem of secondary damage of iron filings in inner wall polishing is fundamentally reduced, and the quality, efficiency and safety are triplely improved;

[0049] Embodiment 2:

[0050] The technical problem existing in the above scheme is that only steel pipes of fixed diameter can be polished, and if the diameter of the steel pipe is changed, the following problems exist: 1. The spacing of the two driven rollers 603 is fixed and unstable; 2. If the bottom surface of the polishing disc 201 cannot remove the inner wall of the steel pipe, adjusting the angle of the cross plate 601, the axis of the steel pipe and the polishing disc 201 is not parallel, affecting the subsequent polishing; To further solve the above problems, refer to Figure 4 、 Figure 5 An axial polishing mechanism is provided on both sides of the support frame 602, and the adjusting mechanism 8 includes a chute 801 opened on both sides of the support frame 602, and a sliding block one 803 is slidably connected to the inner wall of the chute 801, and the inner side of the sliding block one 803 is rotatably connected with the end of the driven roller 603;

[0051] The outer side of the sliding block one 803 is fixedly connected with a circular connecting sleeve 805, and the outer side of the circular connecting sleeve 805 is fixedly connected with a sliding block two 804, and the adjusting block 802 is formed by the sliding block one 803, the circular connecting sleeve 805 and the sliding block two 804, and the lifting plate 809 is arranged below the support frame 602, and the residue temporary storage groove 811 is opened in the top end of the lifting plate 809, and the connecting rod 808 is fixedly connected to the top end of the lifting plate 809, and the lifting frame 806 is fixedly connected to the top end of the connecting rod 808, and the lateral grooves 807 are opened on both sides of the lifting frame 806, and the inner wall of the lateral groove 807 is slidably connected with the outer wall of the sliding block two 804;

[0052] The bottom end of the lifting plate 809 is fixedly connected with the telescopic rod 810, and the bottom of the telescopic rod 810 is fixedly connected with the top end of the cross plate 601;

[0053] In use, the telescopic rod 810 is controlled to extend to drive the lifting plate 809 and the lifting frame 806 to rise, the lifting of the lifting frame 806 drives the sliding block two 804 to rise, and the sliding block two 804 moves along the outer side of the chute 801, and at the same time, the sliding block one 803 also drives the sliding block two 804 to move along the lateral groove 807;

[0054] The distance between the two driven rollers 603 will be larger, and the support for the steel pipe with large diameter will be more stable. If only the distance is larger, the inner wall of the steel pipe will be lowered with the increase of the distance, and the inner wall of the steel pipe will not contact the polishing disc 201;

[0055] Therefore, the height will also rise when the distance between the driven rollers 603 is adjusted, and the above problems are solved.

[0056] Working principle: The adjusting mechanism 8 automatically adjusts according to the pipe diameter: the telescopic rod 810 pushes the lifting frame 806 to rise, drives the adjusting block 802 to move through the composite track of the inclined chute 801 and the transverse chute 807, synchronously expands and lifts the two driven rollers 603, ensures the stable support of steel pipes with different diameters, maintains the constant height of the steel pipe center, ensures that the polishing disc axis is always parallel to the pipe cavity axis, drives the roller 604 to press the steel pipe to rotate, and the resistance mechanism 7 restricts the axial displacement, and the inclined steel pipe continuously discharges the polishing iron filings outside the pipe under the action of gravity and centrifugal force in rotation.

[0057] Embodiment 3:

[0058] The above scheme has the problem that the length of the rotating shaft 202 is fixed, while the length of the steel pipe is not. When the length of the steel pipe is longer, the length of the rotating shaft 202 limits the polishing. Further, referring to Figure 7 、 Figure 8 An axial polishing mechanism, the inner side of the rotating chuck 402 is provided with a transversely penetrating through hole 403, the inner wall of the through hole 403 is in sliding connection with the outer wall of the rotating shaft 202, the end of the rotating shaft 202 away from the polishing disc 201 is threadedly spliced with an extension rod 415, the inner wall of the through hole 403 is annularly arrayed with a transverse guide groove 404, the outer wall of the extension rod 415 and the outer wall of the rotating shaft 202 are both annularly arrayed with a transverse guide block 405, and the outer wall of the transverse guide block 405 is in sliding connection with the inner wall of the transverse guide groove 404.

[0059] The left end of the rotating shaft 202 and the left end of the extension rod 415 are both provided with an annular clamping groove 406.

[0060] The outer side of the moving frame 301 is fixedly connected with an L-shaped plate 413, the outer side of the L-shaped plate 413 is fixedly installed with a telescopic rod five 414, the output end of the telescopic rod five 414 is fixedly connected with a moving plate 409, the bottom ends on both sides of the moving plate 409 are fixedly connected with guide rods 412, the top ends on both sides of the moving plate 409 are fixedly connected with telescopic rods four 410, the output end of the telescopic rod four 410 is fixedly connected with a U-shaped clamping plate 408, the inner side of the U-shaped clamping plate 408 is provided with a semicircular groove corresponding to the annular clamping groove 406, the inner wall of the annular clamping groove 406 is provided with an annular rolling groove 407, the inner wall of the U-shaped clamping plate 408 is rollingly connected with a ball 411, and the outer wall of the ball 411 is rollingly connected with the inner wall of the annular rolling groove 407;

[0061] In use, the initial state is that the U-shaped clamping plate 408 is clamped in the annular clamping groove 406 provided on the rotating shaft 202, and the inner side of the U-shaped clamping plate 408 is in turn in rolling connection with the rotating shaft 202 through the ball 411; in use, the rotating chuck 402 is driven to rotate by the driving mechanism 3, the rotating chuck 402 transmits torque to the rotating shaft 202 through the transverse guide groove 404, so that the rotating shaft 202 is driven to rotate, and the grinding disc 201 is driven to rotate by the rotating shaft 202;

[0062] The feeding state is that the telescopic rod five 414 drives the moving plate 409 to move; the moving plate 409 drives the U-shaped clamping plate 408 and the rotating shaft 202 in rolling connection with the inner side of the U-shaped clamping plate 408 to move, and drives the grinding disc 201 to extend; when the length of the rotating shaft 202 is not enough, the driving assembly 4 stops running, the extension rod 415 is spliced with the rotating shaft 202, the telescopic rod four 410 and the telescopic rod five 414 are controlled to separate the U-shaped clamping plate 408 from the rotating shaft 202, the moving plate 409 is reset by the telescopic rod five 414, and then the telescopic rod four 410 is controlled to clamp the U-shaped clamping plate 408 in the annular clamping groove 406 of the extension rod 415.

[0063] Working principle:

[0064] When the steel pipe is too long, the extension rod 415 is threadedly spliced at the end of the rotating shaft 202, and the transverse guide block 405 is embedded in the transverse guide groove 404 of the rotating chuck 402, so as to form a circumferential torque transmission channel;

[0065] The telescopic rod four 410 drives the U-shaped clamping plate 408 to close, the inner side ball 411 is rollingly engaged with the annular rolling groove 407 of the rotating shaft 202 / extension rod 415, and the composite connection of axial slidable + circumferential strong coupling is realized;

[0066] The telescopic rod five 414 pushes the moving plate 409 and the U-shaped clamping plate 408 to move forward as a whole, drives the rotating shaft 202-extension rod 415 system to axially slide along the transverse guide groove 404, and makes the grinding disc 201 penetrate into the inner cavity of the super-long steel pipe.

Claims

1. An axial polishing mechanism, comprising a bracket (1), a polishing disc (201), a drive assembly (4), a support mechanism, and a tilting drive mechanism (9), characterized in that: The top surface of the bracket (1) is inclined, and a moving component (5) for adjusting its position is installed between the bottom end of the drive component (4) and the top surface of the bracket (1); the drive component (4) includes a rotary chuck (402) and a motor (401) that drives it to rotate, the rotary chuck (402) is connected to an axially extendable shaft (202), and the end of the shaft (202) is fixed to a grinding disc (201). The support mechanism includes a horizontal plate (601) and a support frame (602) on its top. Inclined grooves (801) are opened on both sides of the support frame (602). An adjusting block (802) is slidably connected in the inclined groove (801). The adjusting block (802) is rotatably connected to the driven roller (603). The adjusting block (802) is connected to the telescopic rod (810) via the lifting frame (806). The telescopic rod (810) drives the lifting frame (806) to link with the adjusting block (802), so that the two driven rollers (603) are raised synchronously when the distance is increased, ensuring that the inner walls of steel pipes of different diameters are always in contact with the grinding disc (201). The rotating shaft (202) is detachably connected to the extension rod (415), and the rotating chuck (402) is provided with a transverse guide groove (404) that slides in cooperation with the transverse guide block (405) of the rotating shaft (202) / extension rod (415); The drive assembly (4) is provided with a sliding assembly on the side, which is rolled and locked with the annular groove (406) of the rotating shaft (202) / extension rod (415) through the U-shaped plate (408) to drive the rotating shaft (202) to feed axially.

2. The axial polishing mechanism according to claim 1, characterized in that, The adjusting block (802) is composed of slider one (803), circular connecting sleeve (805) and slider two (804). Slider one (803) slides obliquely along the inclined groove (801), and slider two (804) slides horizontally along the transverse groove (807) of the lifting frame (806), forming a forced motion chain of widening spacing and raising height.

3. An axial polishing mechanism according to claim 2, characterized in that, The lifting frame (806) is fixed to the lifting plate (809) via the connecting rod (808), and the two ends of the telescopic rod (810) are fixed to the bottom of the lifting plate (809) and the top of the horizontal plate (601) respectively.

4. An axial polishing mechanism according to claim 1, characterized in that, The rotary chuck (402) is provided with a through hole (403), and the inner wall of the through hole (403) is arranged with an annular array of transverse guide grooves (404). The outer walls of the rotating shaft (202) and the extension rod (415) are respectively provided with transverse guide blocks (405).

5. An axial polishing mechanism according to claim 1, characterized in that, The inner wall of the U-shaped plate (408) is fitted with ball bearings (411) that roll in cooperation with the annular groove (407) of the rotating shaft (202) / extension rod (415). The U-shaped plate (408) is connected to the telescopic rod (410) to control the opening and closing.

6. An axial polishing mechanism according to claim 5, characterized in that, The telescopic rod four (410) is fixed to the movable plate (409). An L-shaped plate (413) is provided below the movable plate (409). A telescopic rod five (414) is installed on the side wall of the L-shaped plate (413). The output end of the telescopic rod five (414) is connected to the movable plate (409).

7. An axial polishing mechanism according to claim 6, characterized in that, The support mechanism includes a drive roller (604), which presses against the surface of the steel pipe through a telescopic rod (606) and is connected to a drive motor (608) via a pulley (611) and a belt (612).

8. An axial polishing mechanism according to claim 7, characterized in that, The drive roller (604) is provided with a stop mechanism (7) on one side to constrain the axial displacement of the steel pipe.

9. An axial polishing mechanism according to claim 1, characterized in that, The movable component (5) includes a support frame (501) fixedly installed on the top of the bracket (1). A telescopic rod (504) is fixedly installed on the side wall of the support frame (501). The output end of the telescopic rod (504) is fixedly connected to the bottom end of the movable frame (301). Sliding sleeves (503) are fixedly installed on both sides of the bottom end of the movable frame (301). Guide rails (502) are fixedly installed on both sides of the top end of the support frame (501). The inner wall of the sliding sleeve (503) is slidably connected to the outer wall of the guide rail (502). The movement of the support frame (501) is guided by the sliding connection between the sliding sleeve (503) and the guide rail (502).

10. A steel pipe inner wall polishing machine containing an axial polishing mechanism, characterized in that, The axial polishing mechanism described in any one of claims 1-9 is adopted.

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