Polishing device and polishing method for shaft heat-resistant steel machining

Abstract

The invention belongs to the technical field of heat-resistant steel processing, and discloses a polishing device for shaft heat-resistant steel processing, which comprises a workbench and a workpiece, a processing seat is arranged at the top of the workbench, a polishing disc is movably sleeved in the processing seat, a power mechanism is arranged in the processing seat, and the polishing disc is movably sleeved in the processing seat. Guiding frames are fixedly mounted on the left side and the right side of the top of the workbench correspondingly, a first transmission wheel and a second transmission wheel are arranged in the middles of the inner walls of the guiding frames correspondingly, and three positioning cylinders distributed at equal angles are fixedly mounted on the sides, away from the machining base, of the inner walls of the guiding frames. The positioning column is limited, the positioning plate is driven to stably limit a workpiece until the center of the workpiece is automatically positioned, then the workpiece is automatically conveyed through the first transmission wheel and the two second transmission wheels which are distributed at equal angles, the outer surface of the workpiece is uniformly polished through the polishing disc of the circular ring design, and the polishing efficiency is greatly improved. And the surface of the polished workpiece is more uniform.

Description

Technical Field

[0001] The invention belongs to the technical field of heat-resistant steel processing, and in particular relates to a polishing device and a polishing method for processing heat-resistant steel for shafts. Background Art

[0002] During the production process of heat-resistant steel, different types of steel need to be processed. When processing shaft materials in heat-resistant steel structures, they usually need to be polished to remove impurities on their surface to facilitate subsequent finishing or welding operations. Therefore, a polishing device for processing shaft heat-resistant steel is needed.

[0003] At present, the existing polishing devices usually use a transmission wheel to move the workpiece, that is, the workpiece to be processed is placed between the polishing disc and the transmission wheel to achieve polishing and moving at the same time. However, the polishing disc contacts the outer surface of the workpiece and removes impurities on its surface by high-speed rotation, which will cause uneven polishing. As the workpiece moves, the contact pressure between the polishing surface and the polishing disc cannot be effectively controlled. The polishing disc can only apply pressure blindly and cannot effectively center the workpiece.

[0004] At the same time, since the pressure between the polishing surface and the polishing disk cannot be controlled, the overall accuracy of the workpiece after polishing is reduced: since the polishing disk applies different pressures to different positions of the workpiece polishing surface, the roundness of the workpiece will be insufficient, thus affecting the subsequent processing accuracy; in addition, in the prior art, the workpiece will generate heat during the polishing process, and the commonly used method is to use sealing liquid to dissipate heat, but this will cause the surface temperature of the shaft workpiece to be different, resulting in the problem of one side being thick and the other side being thin, thereby causing irregular changes in the size of the workpiece and making the workpiece scrapped. Summary of the invention

[0005] The object of the present invention is to provide a polishing device and a polishing method for machining heat-resistant steel of shafts, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polishing device for processing shaft-type heat-resistant steel, comprising a workbench and a workpiece, a processing seat is arranged on the top of the workbench, a polishing disk is movably sleeved inside the processing seat, a power mechanism is arranged inside the processing seat, guide frames are fixedly installed on the left and right sides of the top of the workbench, a first transmission wheel and a second transmission wheel are respectively arranged in the middle of the inner wall of the guide frame, three positioning cylinders distributed at equal angles are fixedly installed on the side of the inner wall of the guide frame away from the processing seat, a positioning column and a spring are sealed inside the positioning cylinder, a positioning plate is fixedly connected to the other end of the positioning column, a sealing tube is fixedly connected between two adjacent positioning cylinders, the interiors of the positioning cylinder and the sealing tube are filled with sealing liquid, and the left side of the top of the workbench is fixedly connected to a support plate through a support column.

[0007] Preferably, a placement groove is provided on the top of the processing seat, a movable groove is provided in the middle of the processing seat, the processing seat is adapted to be fitted in the middle of the inner wall of the movable groove, and a power mechanism is fixedly connected to the outer surface of the polishing disc.

[0008] Preferably, the power mechanism includes a No. 1 motor, the output shaft of the No. 1 motor is fixedly connected to a driving gear located inside the placement groove, the outer surface of the driving gear is meshingly connected to a passive gear, and the passive gear is fixedly sleeved on the outer surface of the polishing disk.

[0009] Preferably, a sealing cavity is opened inside the positioning cylinder, a sealing groove is opened inside the sealing tube, the sealing cavity is connected with the sealing groove, the sealing liquid is sealed and filled in the area of ​​the inner wall of the sealing cavity located at the inner end of the positioning column, and the two positioning cylinders located on the upper side are fixed to the inner wall of the guide frame through connecting columns.

[0010] Preferably, a No. 2 motor is fixedly connected to the back side of the guide frame, the output shaft of the No. 2 motor is fixedly connected to a rotating shaft located on the inner wall of the guide frame, the outer surface of the rotating shaft is fixedly connected to a No. 1 transmission wheel, and two fixed frames are respectively fixedly connected to the lower side of the middle part of the inner wall of the guide frame, a No. 2 transmission wheel is movably installed inside the fixed frames, and both the No. 1 transmission wheel and the No. 2 transmission wheel are made of rubber blocks and are in limited extrusion contact with the outer surface of the workpiece.

[0011] Preferably, the inner wall of the sealing cavity is sealingly sleeved with a positioning column, the outer surface of the positioning column is movably sleeved with a spring, the two ends of the spring are elastically connected to the sealing cavity and the positioning column respectively, the other end of the positioning column is fixedly connected to a positioning plate, and when the inner side surface of the positioning plate contacts the workpiece, the spring is in a stretched state and the sealing liquid fills the connecting area between the sealing groove and the sealing cavity.

[0012] Preferably, the positioning plate is made of stainless steel, and the corner of a side of the positioning plate that contacts and extrude the workpiece is designed with an arc transition.

[0013] Preferably, the upper side and the front and rear sides of the inner wall of the guide frame are provided with adapting grooves, and the three sealing tubes are respectively adapted and placed inside the three adapting grooves.

[0014] Preferably, the sealing liquid can be selected from kerosene, mercury or alcohol.

[0015] A polishing method for a polishing device for machining heat-resistant steel of shafts, comprising the following steps:

[0016] The No. 1 motor is turned on and the polishing disc is driven to rotate through the active gear and the passive gear, and the No. 2 motor is turned on and the No. 1 transmission wheel is driven to rotate through the rotating shaft, completing the preparation stage for processing the workpiece;

[0017] Then, the workpiece is passed from right to left through the inside of the right guide frame, so that the outer surface of the workpiece applies pressure to the No. 1 transmission wheel, the No. 2 transmission wheel and the positioning plate respectively, driving the positioning column to move toward the inner wall of the sealing cavity, so that the spring is stretched;

[0018] The moving positioning column drives the sealing liquid to flow inside the sealing cavity and the sealing groove and quickly fills the inside of the sealing cavity and the sealing groove, so that the positioning column cannot move, and the positioning of the workpiece is completed;

[0019] The rotating No. 1 transmission wheel, in cooperation with the No. 2 transmission wheel, drives the workpiece to move to the left and pass through the inner ring surface of the polishing disc at a constant speed, so that the high-speed rotating polishing disc polishes the workpiece. As the workpiece continues to move, the heat on its outer surface gradually increases;

[0020] Then, the left end of the workpiece is located inside the left guide frame, so that the left positioning plate, the first transmission wheel and the second transmission wheel are squeezed, and the heat is transferred to the sealing liquid along the left positioning plate and the positioning column. The sealing liquid expands and pushes the positioning column in the opposite direction, driving the positioning plate to press the polished area on the outer surface of the workpiece;

[0021] The processed workpiece will be discharged through the upper surface of the support plate.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention is provided with a positioning plate. When the workpiece passes through the inner side of the positioning plate, pressure is applied to the positioning plate and the three positioning columns are driven to move respectively into the three sealing chambers, so that the spring is compressed. At the same time, the sealing chamber and the sealing groove are quickly and automatically filled with sealing liquid. Under the hydraulic support from the sealing liquid, the positioning column is limited and drives the positioning plate to stably limit the workpiece until the center of the workpiece is automatically positioned. Then, the workpiece is automatically transported by a No. 1 transmission wheel and two No. 2 transmission wheels distributed at equal angles, and the outer surface of the workpiece is evenly polished by a polishing disk with a circular ring design, so that the surface of the polished workpiece is more uniform.

[0024] 2. The present invention places the polishing disc stably by providing a processing seat and makes its axial direction colinear with the axial direction of the workpiece after positioning, and provides three positioning cylinders which are respectively connected through three sealing tubes, so that the sealing liquid filled in the sealing cavity and the sealing groove is pressed by the moving positioning column under the pressure of the workpiece to make it flow until the volume value of the sealing liquid is the same as the volume value of the effective cavity area in the sealing cavity and the sealing groove, so that the positioning column stops moving, thereby ensuring that the workpiece can move stably after positioning is completed, and will not shake when the polishing disc is performing a rotational polishing operation, thereby improving the polishing accuracy of the workpiece.

[0025] 3. The present invention clamps and positions the outer surface of the workpiece by providing a positioning plate. When the polished part of the workpiece passes through the inside of the left guide frame, the hydraulic support force of the sealing liquid drives the positioning column and the positioning plate to apply vertical pressure to the axial direction of the workpiece, so that the heated area of ​​the workpiece is pushed back by the pressure, thereby maintaining the overall size of the workpiece consistent and avoiding the workpiece from being scrapped during the polishing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the front plan appearance of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the front three-dimensional appearance of the overall structure of the present invention;

[0028] Figure 3 It is a front cutaway schematic diagram of the overall structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at center A;

[0030] Figure 5 It is a schematic diagram of the side appearance of the guide frame of the present invention;

[0031] Figure 6 It is a side cutaway schematic diagram of the guide frame of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the positioning tube, the sealing tube, the positioning plate and the connecting column of the present invention;

[0033] Figure 8 It is an exploded schematic diagram of the positioning cylinder, positioning plate, positioning column and spring of the present invention;

[0034] Fig. 9 It is a side view schematic diagram of the overall structure of the present invention;

[0035] Fig.10 It is an exploded schematic diagram of the processing seat, power mechanism and polishing disc of the present invention.

[0036] In the figure: 1. workbench; 2. guide frame; 3. workpiece; 4. rotating shaft; 5. processing seat; 51. placement slot; 52. movable slot; 6. power mechanism; 61. No. 1 motor; 62. driving gear; 63. passive gear; 7. polishing disc; 8. support column; 9. support plate; 10. adapter slot; 11. positioning cylinder; 12. sealing tube; 13. positioning plate; 14. No. 1 transmission wheel; 15. No. 2 transmission wheel; 16. sealing chamber; 17. sealing liquid; 18. positioning column; 19. spring; 20. sealing slot; 21. connecting column; 22. No. 2 motor; 23. fixed frame. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 10 As shown, in the embodiment of the present invention, a polishing device for shaft heat-resistant steel processing includes a workbench 1 and a workpiece 3, a processing seat 5 is arranged on the top of the workbench 1, a polishing disc 7 is movably sleeved inside the processing seat 5, a power mechanism 6 is arranged inside the processing seat 5, guide frames 2 are fixedly installed on the left and right sides of the top of the workbench 1, a first transmission wheel 14 and a second transmission wheel 15 are respectively arranged in the middle of the inner wall of the guide frame 2, three positioning cylinders 11 with equal angles are fixedly installed on the side of the inner wall of the guide frame 2 away from the processing seat 5, a positioning column 18 and a spring 19 are sealed inside the positioning cylinder 11, and a positioning plate 13 is fixedly connected to the other end of the positioning column 18, and a sealing tube 12 is fixedly connected between two adjacent positioning cylinders 11, and the interiors of the positioning cylinder 11 and the sealing tube 12 are filled with sealing liquid 17, and the left side of the top of the workbench 1 is fixedly connected to a support plate 9 through a support column 8;

[0039] When the device is in use, the power mechanism 6 and the No. 2 motor 22 are started respectively, and the workpiece 3 is passed from right to left along the middle of the guide frame 2 through the positioning plate 13, the No. 1 transmission wheel 14 and the No. 2 transmission wheel 15. First, the positioning plate 13 is squeezed by the workpiece 3 and starts to drive the positioning column 18 to move toward the inside of the sealing cavity 16, so that the sealing liquid 17 is pressed and flows, and then the sealing liquid 17 completely fills the sealing groove 20 and the inside of the sealing cavity 16. At this time, the three positioning plates 13 cannot continue to move along the axial direction of the positioning cylinder 11, thereby completing the automatic positioning function of the workpiece 3. When the workpiece 3 passes through the No. 1 transmission wheel 14 and the No. 2 transmission wheel 15, it will squeeze the No. 1 transmission wheel 14 and the No. 2 transmission wheel 15. At this time, the No. 2 motor 22 drives the workpiece 3 to move to the left through the No. 1 transmission wheel 14. The workpiece 3 is passed through the inside of the polishing disk 7, and the power mechanism 6 drives the polishing disk 7 to rotate to evenly polish the outer surface of the workpiece 3. The heat of the polished outer surface area of ​​the workpiece 3 gradually increases and continues to pass through the left guide frame 2. When the workpiece 3 passes through the inside of the positioning plate 13 on the left, the heat is transferred to the sealing liquid 17 through the positioning plate 13 and the positioning column 18, causing the sealing liquid 17 to expand, pushing the positioning column 18 and the positioning plate 13 on the left to move outward, so that the polished part of the outer surface of the workpiece 3 is synchronously clamped. Note: The diameter value of the polished part of the outer surface of the workpiece 3 is inevitably reduced due to mechanical friction. At this time, the driving force from the sealing liquid 17 automatically adapts the pressure to the outer surface of the workpiece 3 while absorbing heat to prevent the workpiece 3 from shifting during movement.

[0040] By providing a positioning plate 13, when the workpiece 3 passes through the inner side of the positioning plate 13, pressure is applied to it and the three positioning columns 18 are driven to move respectively into the three sealing chambers 16, so that the spring 19 is compressed. At the same time, the sealing chamber 16 and the sealing groove 20 are quickly and automatically filled with the sealing liquid 17. Under the hydraulic support from the sealing liquid 17, the positioning column 18 is limited and drives the positioning plate 13 to stably limit the workpiece 3 until the center of the workpiece 3 is automatically positioned. Then, the workpiece 3 is automatically transported by the No. 1 transmission wheel 14 and the two No. 2 transmission wheels 15 distributed at equal angles, and the outer surface of the workpiece 3 is evenly polished by the polishing disk 7 with a circular ring design, so that the surface of the polished workpiece 3 is more uniform.

[0041] The top of the processing seat 5 is provided with a placement groove 51, the middle of the processing seat 5 is provided with a movable groove 52, the processing seat 5 is adapted to be matched to the middle of the inner wall of the movable groove 52, and the outer surface of the polishing disc 7 is fixedly connected with a power mechanism 6;

[0042] The placement groove 51 is used to place the power mechanism 6, so that the power from the power mechanism 6 is continuously transmitted to the polishing disk 7, and then drives the polishing disk 7 to rotate. The inner annular surface of the polishing disk 7 is used to polish the workpiece 3. The high-speed circular rotation helps to improve the polishing efficiency.

[0043] By providing a processing seat 5, the polishing disk 7 is stably placed and its axial direction is colinear with the axial direction of the workpiece 3 after positioning. By providing three positioning cylinders 11, which are respectively connected through three sealing tubes 12, the sealing liquid 17 filled in the sealing cavity 16 and the sealing groove 20 is pressed by the moving positioning column 18 under the pressure of the workpiece 3 to make it flow until the volume value of the sealing liquid 17 is the same as the volume value of the effective cavity area inside the sealing cavity 16 and the sealing groove 20, so that the positioning column 18 stops moving, thereby ensuring that the workpiece 3 can move stably after positioning is completed, and will not shake when the polishing disk 7 performs a rotational polishing operation, thereby improving the polishing accuracy of the workpiece 3.

[0044] The power mechanism 6 includes a first motor 61, the output shaft of the first motor 61 is fixedly connected to a driving gear 62 located inside the placement slot 51, the outer surface of the driving gear 62 is meshedly connected to a driven gear 63, and the driven gear 63 is fixedly sleeved on the outer surface of the polishing disc 7;

[0045] After the power mechanism 6 is started, the active gear 62 will drive the passive gear 63 to rotate, thereby driving the polishing disc 7 to rotate, realizing the power output of polishing. The transmission of the active gear 62 and the passive gear 63 can realize the stable output of power, which is conducive to the continuous subsequent polishing.

[0046] A sealing cavity 16 is provided inside the positioning cylinder 11, a sealing groove 20 is provided inside the sealing tube 12, the sealing cavity 16 is communicated with the sealing groove 20, a sealing liquid 17 is sealed and filled in a region of the inner wall of the sealing cavity 16 located at one end of the inner side of the positioning column 18, and the two positioning cylinders 11 located on the upper side are fixed to the inner wall of the guide frame 2 through a connecting column 21;

[0047] The sealing cavity 16 is connected to the sealing groove 20 and is used to place the sealing liquid 17. The sealing liquid 17 has three functions: first, when the workpiece 3 applies pressure to the positioning plate 13 and the positioning column 18, the positioning column 18 moves toward the inside of the sealing cavity 16, compressing the effective cavity area inside the sealing cavity 16, so that the sealing liquid 17 is pressed and flow-adapted to completely fill the inside of the sealing cavity 16 and the sealing groove 20, and the positioning column 18 is automatically limited by hydraulic pressure, thereby assisting the workpiece 3 in centering; second, the sealing liquid 17 is made of heat-dissipating liquid, which can dissipate the heat of the outer surface of the polished workpiece 3; third, the sealing liquid 17 that absorbs the heat from the outer surface of the workpiece 3 can expand and drive the positioning column 18 to move in the opposite direction, so that the positioning plate 13 squeezes and contacts the outer surface of the polished workpiece 3 more tightly, thereby avoiding the center of the workpiece 3 from shifting and improving the polishing accuracy.

[0048] The outer surface of the workpiece 3 is clamped and positioned by providing a positioning plate 13. When the polished portion of the workpiece 3 passes through the interior of the left guide frame 2, the hydraulic support force of the sealing liquid 17 drives the positioning column 18 and the positioning plate 13 to apply vertical pressure to the axial direction of the workpiece 3, so that the heated area of ​​the workpiece 3 is pushed back by the pressure, thereby maintaining the overall size of the workpiece 3 consistent and avoiding the workpiece 3 from being scrapped during the polishing process.

[0049] The back of the guide frame 2 is fixedly connected with a No. 2 motor 22, the output shaft of the No. 2 motor 22 is fixedly connected with a rotating shaft 4 located on the inner wall of the guide frame 2, the outer surface of the rotating shaft 4 is fixedly connected with a No. 1 transmission wheel 14, and the lower side of the middle of the inner wall of the guide frame 2 is fixedly connected with two fixed frames 23, and the interior of the fixed frame 23 is movably installed with a No. 2 transmission wheel 15, and the No. 1 transmission wheel 14 and the No. 2 transmission wheel 15 are both made of rubber blocks and are in limited extrusion contact with the outer surface of the workpiece 3;

[0050] The moving power of the workpiece 3 comes from the No. 2 motor 22. After the No. 2 motor 22 is started, it will drive the No. 1 transmission wheel 14 to rotate. The friction force generated by the workpiece 3 squeezing the No. 1 transmission wheel 14 and the No. 2 transmission wheel 15 drives the workpiece 3 to move, thereby realizing the automatic movement function of the workpiece 3 during polishing.

[0051] The inner wall of the sealing cavity 16 is sealed with a positioning column 18, and the outer surface of the positioning column 18 is movably sleeved with a spring 19, and the two ends of the spring 19 are elastically connected to the sealing cavity 16 and the positioning column 18 respectively, and the other end of the positioning column 18 is fixedly connected to the positioning plate 13. When the inner side surface of the positioning plate 13 contacts the workpiece 3, the spring 19 is in a stretched state and the sealing liquid 17 fills the communication area between the sealing groove 20 and the sealing cavity 16;

[0052] The cooperation between the positioning column 18 and the positioning plate 13 causes the passing workpiece 3 to exert pressure on it, and then drives the spring 19 to be stretched. The pressure and positioning of the workpiece 3 can be achieved through the hydraulic support force of the additional sealing liquid 17 to avoid the disadvantage of the instability of the spring 19 when subjected to force.

[0053] The positioning plate 13 is made of stainless steel, and the corner of the side of the positioning plate 13 that contacts and extrude the workpiece 3 is designed with an arc transition;

[0054] The positioning plate 13 is made of stainless steel, which has strong anti-wear ability and less friction when in contact with the workpiece 3, which is more conducive to the efficient transportation of the workpiece 3. The positioning plate 13 can also conduct heat to the outer surface of the workpiece 3 and transfer the heat to the sealing liquid 17. Here, the workpiece 3 is not dissipated, but the heat generated by the polishing friction of the workpiece 3 is used to expand the sealing liquid 17 and drive the positioning column 18 and the positioning plate 13 to apply tighter pressure to the workpiece 3 after polishing.

[0055] Among them, adaptation grooves 10 are opened on the upper side and front and rear sides of the inner wall of the guide frame 2, and three sealing tubes 12 are respectively adapted and placed inside the three adaptation grooves 10; the adaptation grooves 10 are used for placing the sealing tubes 12, and the sealing tubes 12 with an arc shape are located on the inner wall of the guide frame 2, and the adaptation grooves 10 can just adapt to them.

[0056] The sealing liquid 17 can be selected from kerosene, mercury or alcohol; the sealing liquid 17 is a thermal expansion material, which can be selected from kerosene, mercury and alcohol, and has strong flexibility.

[0057] A polishing method for a polishing device for machining heat-resistant steel of shafts, comprising the following steps:

[0058] The first motor 61 is turned on and drives the polishing plate 7 to rotate through the driving gear 62 and the driven gear 63, and the second motor 22 is turned on and drives the first transmission wheel 14 to rotate through the rotating shaft 4, completing the preparation stage for processing the workpiece 3;

[0059] The workpiece 3 is passed through the right guide frame 2 from right to left, so that the outer surface of the workpiece 3 applies pressure to the No. 1 transmission wheel 14, the No. 2 transmission wheel 15 and the positioning plate 13 respectively, driving the positioning column 18 to move toward the inner wall of the sealing cavity 16, so that the spring 19 is stretched;

[0060] The moving positioning column 18 drives the sealing liquid 17 to flow inside the sealing cavity 16 and the sealing groove 20 and quickly fills the inside of the sealing cavity 16 and the sealing groove 20, so that the positioning column 18 cannot move, and the positioning of the workpiece 3 is completed;

[0061] The rotating No. 1 transmission wheel 14 drives the workpiece 3 to move to the left in cooperation with the No. 2 transmission wheel 15 and passes through the inner annular surface of the polishing disc 7 at a constant speed, so that the high-speed rotating polishing disc 7 polishes the workpiece 3. As the workpiece 3 continues to move, the heat on its outer surface gradually increases.

[0062] The left end of the workpiece 3 is located inside the left guide frame 2, so that the left positioning plate 13, the first transmission wheel 14 and the second transmission wheel 15 are squeezed, and the heat is transferred to the sealing liquid 17 along the left positioning plate 13 and the positioning column 18. The sealing liquid 17 expands and pushes the positioning column 18 in the opposite direction, driving the positioning plate 13 to press the polished area on the outer surface of the workpiece 3;

[0063] The processed workpiece 3 will pass through the upper surface of the support plate 9 to complete the discharge.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for heat-resistant steel processing of shafts, comprising a workbench (1) and a workpiece (3), wherein a processing seat (5) is arranged on the top of the workbench (1), a polishing disc (7) is movably sleeved inside the processing seat (5), and a power mechanism (6) is arranged inside the processing seat (5), characterized in that: Guide frames (2) are fixedly installed on both left and right sides of the top of the workbench (1), and a first transmission wheel (14) and a second transmission wheel (15) are respectively arranged in the middle of the inner wall of the guide frame (2). Three positioning cylinders (11) distributed at equal angles are fixedly installed on the inner wall of the guide frame (2) away from the processing seat (5). The inner sealing sleeve of the positioning cylinder (11) is connected with a positioning column (18) and a spring (19), and the other end of the positioning column (18) is fixedly connected with a positioning plate (13). A sealing tube (12) is fixedly connected between two adjacent positioning cylinders (11), and the interiors of the positioning cylinder (11) and the sealing tube (12) are filled with sealing liquid (17). The left side of the top of the workbench (1) is fixedly connected with a support plate (9) through a support column (8).

2. A polishing device for heat-resistant steel processing of shafts according to claim 1, characterized in that: The top of the processing seat (5) is provided with a placement groove (51), the middle of the processing seat (5) is provided with a movable groove (52), the processing seat (5) is adapted to be fitted in the middle of the inner wall of the movable groove (52), and the outer surface of the polishing disc (7) is fixedly connected with a power mechanism (6).

3. A polishing device for heat-resistant steel processing of shafts according to claim 2, characterized in that: The power mechanism (6) comprises a first motor (61), the output shaft of the first motor (61) is fixedly connected to a driving gear (62) located inside the placement groove (51), the outer surface of the driving gear (62) is meshingly connected to a driven gear (63), and the driven gear (63) is fixedly sleeved on the outer surface of the polishing disc (7).

4. The polishing device for heat-resistant steel processing of shafts according to claim 1 is characterized in that: A sealing cavity (16) is provided inside the positioning tube (11), a sealing groove (20) is provided inside the sealing tube (12), the sealing cavity (16) is in communication with the sealing groove (20), the sealing liquid (17) is sealed and filled in a region of the inner wall of the sealing cavity (16) located at one end inside the positioning column (18), and the two positioning tubes (11) located on the upper side are fixed to the inner wall of the guide frame (2) via a connecting column (21).

5. The polishing device for heat-resistant steel processing of shafts according to claim 1 is characterized in that: A No. 2 motor (22) is fixedly connected to the back of the guide frame (2); an output shaft of the No. 2 motor (22) is fixedly connected to a rotating shaft (4) located on the inner wall of the guide frame (2); a No. 1 transmission wheel (14) is fixedly connected to the outer surface of the rotating shaft (4); two fixed frames (23) are respectively fixedly connected to the lower side of the middle of the inner wall of the guide frame (2); a No. 2 transmission wheel (15) is movably installed inside the fixed frame (23); the No. 1 transmission wheel (14) and the No. 2 transmission wheel (15) are both made of rubber blocks and are in limited extrusion contact with the outer surface of the workpiece (3).

6. The polishing device for heat-resistant steel processing of shafts according to claim 4, characterized in that: The inner wall of the sealing cavity (16) is sealingly sleeved with a positioning column (18), and the outer surface of the positioning column (18) is movably sleeved with a spring (19), and the two ends of the spring (19) are elastically connected to the sealing cavity (16) and the positioning column (18) respectively, and the other end of the positioning column (18) is fixedly connected to a positioning plate (13), and when the inner side surface of the positioning plate (13) contacts the workpiece (3), the spring (19) is in a stretched state and the sealing liquid (17) fills the communication area between the sealing groove (20) and the sealing cavity (16).

7. The polishing device for heat-resistant steel processing of shafts according to claim 1 is characterized in that: The positioning plate (13) is made of stainless steel, and the corner of one side of the positioning plate (13) that contacts and extrude the workpiece (3) is designed to be an arc transition.

8. The polishing device for heat-resistant steel processing of shafts according to claim 1 is characterized in that: Adaptation grooves (10) are provided on the upper side and the front and rear sides of the inner wall of the guide frame (2), and the three sealing tubes (12) are respectively adapted and placed inside the three adaptation grooves (10).

9. The polishing device for heat-resistant steel processing of shafts according to claim 1, characterized in that: The sealing liquid (17) can be selected from kerosene, mercury or alcohol.

10. A polishing method for a polishing device for shaft heat-resistant steel processing according to claims 1-9, characterized in that: The following steps are involved: The first motor (61) is turned on and the polishing disc (7) is driven to rotate through the driving gear (62) and the driven gear (63), and the second motor (22) is turned on and the first transmission wheel (14) is driven to rotate through the rotating shaft (4), thereby completing the preparation stage for processing the workpiece (3); The workpiece (3) is passed from right to left through the inside of the right guide frame (2), so that the outer surface of the workpiece (3) applies pressure to the first transmission wheel (14), the second transmission wheel (15) and the positioning plate (13), respectively, driving the positioning column (18) to move toward the inner wall of the sealing chamber (16), so that the spring (19) is stretched; The moving positioning column (18) drives the sealing liquid (17) to flow inside the sealing cavity (16) and the sealing groove (20) and quickly fill the inside of the sealing cavity (16) and the sealing groove (20), thereby making the positioning column (18) unable to move, thereby completing the positioning of the workpiece (3); The rotating No. 1 transmission wheel (14) drives the workpiece (3) to move to the left in cooperation with the No. 2 transmission wheel (15) and pass through the inner annular surface of the polishing disc (7) at a constant speed, so that the high-speed rotating polishing disc (7) polishes the workpiece (3). As the workpiece (3) continues to move, the heat on its outer surface gradually increases; The left end of the workpiece (3) is located inside the left guide frame (2), so that the left positioning plate (13), the first transmission wheel (14) and the second transmission wheel (15) are squeezed, and the heat is transferred to the sealing liquid (17) along the left positioning plate (13) and the positioning column (18). The sealing liquid (17) expands and pushes the positioning column (18) in the opposite direction, driving the positioning plate (13) to apply pressure to the polished area of ​​the outer surface of the workpiece (3); The processed workpiece (3) will pass through the upper surface of the support plate (9) to complete the discharge.

Images