CN112247818B - Polishing method of polishing machine for pipes - Google Patents
Polishing method of polishing machine for pipes Download PDFInfo
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- CN112247818B CN112247818B CN202010982329.8A CN202010982329A CN112247818B CN 112247818 B CN112247818 B CN 112247818B CN 202010982329 A CN202010982329 A CN 202010982329A CN 112247818 B CN112247818 B CN 112247818B
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- pipe
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- feeding
- limiting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/06—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction
- B24B29/08—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction the cross-section being circular, e.g. tubes, wires, needles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention discloses a polishing method of a polishing machine for pipes, and belongs to the field of surface polishing. The polishing machine comprises a basic mechanism, a feeding mechanism, a polishing mechanism and a discharging mechanism. The basic mechanism comprises a rack and a processing table top arranged above the rack; the feeding mechanism comprises a disc feeding device arranged on the processing table surface, a pipe sliding platform and two linear pushing mechanisms arranged at the starting end and the tail end of the pipe sliding platform; the polishing mechanism comprises an outer surface polishing device and an inner surface polishing device which are respectively aligned with the two pushing mechanisms. According to the automatic feeding and discharging device, the conveying belt, the disc feeding device and the pipe sliding platform are matched, so that manual feeding and discharging are replaced, the working strength of workers is reduced, and the automation efficiency is improved; the polishing head of the inner surface polishing device is made of abrasive leather, and the shape of the polishing head is designed into a cross shape, so that the polishing acting force is more uniform, and the quality of a polished product is improved.
Description
The invention is a divisional application, and the original application information is as follows, the name: a polishing machine for pipes and a polishing method thereof, the application number is as follows: 2019106814129, filing date: 2019.07.26.
Technical Field
The invention belongs to the field of surface polishing, and particularly relates to a polishing method of a polishing machine for pipes.
Background
Along with the improvement of product quality and the upgrading of products, the requirement on polishing is increased, polishing treatment is required in the production and processing of stainless steel pipes, and particularly, the requirements on the roughness of the pipes in the fields of chemical engineering, medicine and the like are more strict. On the one hand, most of the existing polishing modes adopt common manual polishing or semi-automatic polishing, and a user is required to directly participate in or adjust the position of the polished pipe beside the polishing mode. Moreover, the more existing semi-automatic polishing equipment is that the inner surface or the outer surface of the pipe are singly polished, and the inner surface and the outer surface of the pipe can be polished simultaneously only by manually feeding and discharging, so that the labor intensity of workers is increased undoubtedly.
On the other hand, in the internal surface polishing equipment used in the existing polishing equipment, when thin and long pipes are processed, because the length of the polishing rod is too large, large-amplitude shaking is easy to occur, and a rigid polishing head is easy to rigidly collide with the internal surface of the pipe, so that the friction degree which cannot be uniformly reduced is not only reduced, but also stress is possibly too concentrated, the roughness of the internal wall of the pipe is improved, and the product quality is reduced.
Disclosure of Invention
The purpose of the invention is as follows: a method of polishing a pipe by a polishing machine is provided to solve the above-mentioned problems involved in the background art.
The technical scheme is as follows: in one aspect, a polishing machine for pipes comprises: the polishing machine comprises a base mechanism, a feeding mechanism, a polishing mechanism and a discharging mechanism.
The basic mechanism comprises a rack, a processing table top arranged above the rack, a power distribution system and a PLC control system arranged in the rack;
the feeding mechanism comprises a disc feeding device arranged on the processing table surface, a pipe sliding platform arranged below the disc feeding device, and two linear pushing mechanisms respectively arranged at the starting end and the tail end of the pipe sliding platform;
the polishing mechanism is arranged on one side of the feeding mechanism and is aligned with the propelling mechanism; the polishing device comprises an outer surface polishing device and an inner surface polishing device which are respectively aligned with two propelling mechanisms;
the discharging mechanism is a conveying belt arranged below the pipe sliding platform.
In a further implementation, the carousel feed device comprises: the feeding bottom plate is arranged above the lower side of the feeding bottom plate through a cross beam, and is provided with a limit baffle plate with a preset distance between the two supporting side plates, the feeding rotating shaft is fixedly arranged on one side of the limit baffle plate, a plurality of feeding disks are fixedly arranged on the feeding rotating shaft and pass through the circle center of the feeding rotating shaft along with the extension line of the feeding bottom plate, material clamping grooves which are arranged at the outer edges of the feeding disks and have the same shape and size with the pipe to be processed are arranged above the feeding disks, are matched with the outer contour of the feeding disks, are fixed on arc-shaped limiting plates on the two supporting side plates through cross beams, and are fixedly arranged at the lowest point on the feeding bottom plate and are positioned on a trapezoidal guide plate below the arc-shaped limiting plates, and a rotating motor connected with the feeding rotating shaft through a belt.
In further implementations, the tubing slide platform includes: set up disc material feeding unit lower extreme, and fixed mounting are in support frame on the processing mesa, the slope sets up slide bracket on the support frame, fixed mounting be in lift cylinder on the crossbeam of the support frame of the higher one side of slide bracket, with lift cylinder output shaft is connected, through fixed guide slidable mounting lift baffle on the support frame, fixed mounting be in on the lift baffle, and with a plurality of wedge blocks that trapezoidal baffle aligns, and set up the spacing subassembly of the last lower one side of slide bracket.
In a further implementation, the stop assembly comprises: rotate and install the spacing pivot of lower one side on the tubular product sliding platform, fixed connection is in two stoppers of spacing pivot both sides set up the gear at spacing pivot middle part, with gear engaged with's rack, through sliding guide slidable mounting in tubular product sliding platform bottom, and with rack fixed connection's first sliding block, with first sliding block is connected, just fixes last revolving cylinder of tubular product sliding platform.
In further implementations, the propulsion mechanism includes: the device comprises a propelling cylinder fixedly installed on a machining table board, a linear guide rail fixed on the machining table board and aligned with the propelling cylinder, a second sliding block installed on the linear guide rail through a bearing and connected with an output shaft of the propelling cylinder, a pushing rod connected with the second sliding block, and a mechanical clamping jaw arranged at the other end of the pushing rod.
In further implementations, the outer surface polishing apparatus includes: the polishing assembly is arranged at the starting end of the pipe sliding platform and is aligned with the propelling mechanism, the two fixed conveyors are positioned at two sides of the polishing assembly, and the rotating roller is arranged between the two fixed conveyors; the polishing assembly comprises two linear motion modules which are arranged on the processing table top and are adjusted through an adjusting hand wheel, two first servo motors which are fixedly arranged on a sliding part on the linear motion modules and are of the same type, rotary grinding wheels connected with output shafts of the two first servo motors, and protective covers arranged on the two rotary grinding wheels; the fixed conveyor comprises an upper pulley and a lower pulley, the lower pulley is a fixed pulley and is connected with a motor, and the upper pulley is a movable pulley and is connected with an electric regulating wheel; the rotary roller is composed of two rollers which are fixedly arranged on the processing table surface, tangent with the outer surface of the pipe to be processed and can freely rotate.
In further implementations, the inner surface polishing apparatus includes: the pipe polishing machine comprises a frame, a first servo motor, an inner polishing rod, a plurality of polishing heads and a plurality of polishing heads, wherein the first servo motor is arranged on the frame, the inner polishing rod is connected with the first servo motor through a belt in a transmission mode and has the diameter of 1/5 equal to the diameter of a pipe to be processed, and the plurality of polishing heads are arranged on the inner polishing rod and are matched with the inner diameter of the pipe to be processed; the V-shaped clamp is arranged below the inner throwing rod and is installed on the processing table surface, the fixing piece is arranged on the V-shaped clamp, and the bottom of the V-shaped clamp is provided with a linear motion assembly; the fixing piece is a clamp which moves up and down in the vertical direction through the cooperation of the linear module.
In a further implementation, the projectile is made of a sheet of sand, which is in the shape of a ring, a polygon or a cross.
In another aspect, a method of polishing a pipe with a polishing machine includes the steps of:
s1, conveying the cut pipes to a feeding bottom plate of a disc feeding device through a conveying belt, enabling a large number of pipes to be processed to freely roll down to a limiting baffle, enabling the pipes to only singly and sequentially enter a reserved space between the limiting baffle and a feeding disc, rotating the feeding disc under the driving of a rotating motor, enabling the pipes to freely roll into clamping grooves when the clamping grooves in the feeding disc move to the reserved space, enabling the pipes to circularly move along the feeding disc under the matching of an arc limiting plate to reach a trapezoid guide plate, and enabling the pipes to fall onto a lifting guide plate of a pipe sliding platform along the inclined surface of the trapezoid guide plate;
s2, under the matching of the wedge block on the lifting guide plate and the support frame, the pipe to be processed is horizontally placed on the wedge block, at the moment, a pushing cylinder in a first pushing mechanism pushes a second sliding block and a pushing rod to one end of the pipe to be processed, and a mechanical clamping jaw clamps the pipe to be processed and continues to move forwards to the outer surface polishing mechanism;
s3, when the pipe to be processed moves to the first fixed conveyor, the mechanical clamping jaw is loosened, the upper pulley is pressed downwards to limit the pipe to be processed, the motor drives the lower pulley to rotate, the pipe to be processed is conveyed to pass through the rotating roller, the rotating roller drives the pipe to rotate along the axis, when the pipe to be processed moves to the rotating grinding wheel, the pipe to be processed is polished in opposite directions at the same rotating speed under the drive of the two first servo motors until the pipe to be processed is completely conveyed to the fixed conveyor at the other end, and the polishing of the pipe to be processed is completed;
s4, reversing the two first servo motors and the motors on the fixed conveyor, and continuing to perform reverse upward polishing; finally, the pipe to be processed is conveyed to the mechanical clamping jaw, the mechanical clamping jaw clamps the pipe to be processed again, the pipe to be processed is pulled back to the wedge block, the mechanical clamping jaw is loosened, and the pipe to be processed is horizontally placed;
s5, the lifting cylinder pushes the lifting guide plate to move upwards to the sliding platform, the pipe to be processed freely slides to the position of the limiting block on the limiting component, the same as the step S2, the pushing cylinder in the second pushing mechanism pushes the second sliding block and the pushing rod to one end of the pipe to be processed, and the mechanical clamping jaw clamps the pipe to be processed and continues to move forwards to the inner surface polishing mechanism;
s6, when the pipe to be processed moves to the V-shaped clamp and is sleeved on the inner polishing rod, the mechanical clamping jaw is loosened and fixed under the matching of the fixing component, the second servo motor drives the plurality of polishing heads to rotationally polish the inside of the pipe to be processed, meanwhile, the V-shaped clamp and the pipe to be processed are pushed to move for a preset distance in the horizontal direction through the linear movement component, and then the pipe to be processed returns to the initial position again, so that the inner polishing process is completed;
s7, clamping the pipe to be processed again by the mechanical clamping jaw, pulling the pipe to be processed back to the position of the limiting assembly, loosening the mechanical clamping jaw, and horizontally placing; then revolving cylinder promotes first sliding block and rack and moves on sliding guide, and then drives spacing pivot and the rotatory predetermined angle of stopper through the gear, and to stopper and sliding platform parallel and level, treat that processing tubular product freely slides, to the transmission band, realize the ejection of compact, convey to next workshop section through the transmission band and process.
Has the advantages that: the invention relates to a polishing method of a polishing machine for pipes, which has the following advantages compared with the prior art:
1. the feeding and discharging of the pipes are matched with each other through the transmission belt, the disc feeding device and the pipe sliding platform, manual feeding and discharging are replaced, the working strength of workers is reduced, and the automation efficiency is improved.
2. By adopting the disc feeding device, the space between the clamping groove and the arc limiting plate can only accommodate the size of the next pipe, so that single and automatic feeding of the pipe can be realized.
3. The pipe sliding platform is provided with a lifting guide plate and a limiting assembly as positioning devices at the starting end and the tail end respectively, and then the lifting guide plate and the limiting assembly are matched with a propelling mechanism to perform positioning and realize automatic feeding, so that the feeding accuracy is ensured.
4. The outer surface polishing device and the inner surface polishing device simultaneously polish different pipes, and the utilization efficiency and the polishing efficiency of the equipment are improved.
5. The polishing head is made of the sand skin, the shape design is cross-shaped, when the polishing head swings greatly, the polishing acting force can be more uniform due to the fact that the cross-shaped polishing head is of a flexible structure, the stress concentration cannot occur, the roughness of the inner wall of the pipe cannot be increased, and the product quality is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the disc feeding device of the present invention.
FIG. 3 is a schematic structural view of the tube sliding platform according to the present invention.
Fig. 4 is a schematic structural view of the limiting assembly of the present invention.
Fig. 5 is a schematic view of the structure of the propulsion mechanism of the present invention.
Fig. 6 is a schematic view of the structure of the outer surface polishing apparatus according to the present invention.
Fig. 7 is a schematic view of the structure of the fixed conveyor of the present invention.
Fig. 8 is a schematic view of the structure of the inner surface polishing apparatus according to the present invention.
FIG. 9 is a schematic diagram of the V-clamp and fastener of the present invention.
Fig. 10 is a schematic structural view of a cruciform shaped projectile in accordance with the present invention.
Fig. 11 is a schematic structural view of the m-shaped polishing head of the present invention.
The reference signs are: the device comprises a processing table board 1, a disc feeding device 2, a pipe sliding platform 3, a propelling mechanism 4, an outer surface polishing device 5, an inner surface polishing device 6, a transmission belt 7, a supporting side plate 201, a feeding bottom plate 202, a limit baffle 203, a feeding rotating shaft 204, a feeding disc 205, a material clamping groove 206, an arc limit plate 207, a trapezoidal guide plate 208, a rotating motor 209, a supporting frame 301, a sliding platform 302, a lifting cylinder 303, a lifting guide plate 304, a wedge block 305, a limit component 306, a limit rotating shaft 306a, a limit block 306b, a gear 306c, a rack 306d, a first sliding block 306e, a rotating cylinder 306f, a pushing cylinder 401, a linear guide rail 402, a second sliding block 403, a pushing rod 404, a mechanical clamping jaw 405, an adjusting hand wheel 501, a linear motion module 502, a first servo motor 503, a rotating grinding wheel 504, a protective cover 505, an upper sliding wheel 506, a lower sliding wheel 507, a motor 508, an electric adjusting wheel 509, The device comprises a roller 510, a second servo motor 601, an inner throwing rod 602, a throwing head 603, a V-shaped clamp 604, a fixing piece 605, a linear motion assembly 606 and a sand skin 603 a.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, a polishing machine for pipes comprises: the polishing machine comprises a base mechanism, a feeding mechanism, a polishing mechanism and a discharging mechanism.
The basic mechanism includes: the device comprises a frame and a processing table top 1 arranged above the frame. Wherein, a power distribution system and a PLC control system are arranged in the frame.
Feed mechanism includes: disc material feeding unit 2, tubular product sliding platform 3, advancing mechanism 4. The circular plate feeding device 2 is arranged on the processing table board 1, the pipe sliding platform 3 is arranged below the circular plate feeding device 2, and two linear propulsion mechanisms 4 are respectively arranged at the starting end and the tail end of the pipe sliding platform 3.
As a preferred solution, as shown in fig. 2, the disc feeding device 2 includes: the device comprises a supporting side plate 201, a feeding bottom plate 202, a limit baffle 203, a feeding rotating shaft 204, a feeding disc 205, a material clamping groove 206, an arc-shaped limit plate 207, a trapezoid guide plate 208 and a rotating motor 209. The two supporting side plates 201 are arranged on the rack in parallel, a feeding bottom plate 202 is obliquely arranged between the two supporting side plates 201, a limit baffle 203 is arranged above the lower side of the feeding bottom plate 202 and at a preset distance between the two supporting side plates through a cross beam, a feeding rotating shaft 204 is fixedly arranged on one side of the limit baffle 203, a plurality of feeding disks 205 are fixedly arranged on the feeding rotating shaft 204, the extension line of the feeding bottom plate 202 penetrates through the circle center of the feeding disks 205, a clamping groove 206 is arranged at the outer edge of each feeding disk 205 and is the same as the shape and the size of a pipe to be processed, arc-shaped limiting plates 207 are arranged above the feeding disks 205 at intervals, are matched with the outer contour of the feeding disks 205 and are fixed on the two supporting side plates 201 through the cross beam, and a trapezoid-shaped guide plate 208 is fixedly arranged at the lowest point on the feeding bottom plate 202, and is located below the arc limiting plate 207, and the rotating motor 209 is connected with the feeding rotating shaft 204 through a belt. Carry the tubular product that will cut the completion to the feeding bottom plate 202 of disc material feeding unit 2 through transmission band 7 on, a large amount of tubular products of treating to process freely roll to limit baffle 203 department, tubular product can only singly get into reservation space department between limit baffle 203 and the pay-off disc 205 in proper order, under the driving of rotating electrical machines 209, pay-off disc 205 rotates, card material recess 206 in the pay-off disc 205 moves when reservation space department, tubular product freely rolls to in the card material recess 206, under the cooperation of arc limiting plate 207, tubular product is circular motion along pay-off disc 205, to trapezoidal baffle 208 department, fall into on tubular product sliding platform 3 along the inclined plane of trapezoidal baffle 208. This burnishing machine adopts disc feed arrangement, because the space between card material recess 206 and the arc limiting plate 207 can only hold the size of next tubular product, realizes the unicity and the automatic feeding of the feeding of tubular product.
As a preferred solution, as shown in fig. 3, the tube sliding platform 3 includes: the device comprises a support frame 301, a sliding platform 302, a lifting cylinder 303, a lifting guide plate 304, a wedge block 305, a limiting component 306, a limiting rotating shaft 306a, a limiting block 306b, a gear 306c, a rack 306d, a first sliding block 306e and a rotating cylinder 306 f. Support frame 301 sets up 2 lower extremes of disc material feeding unit, and fixed mounting are in on the processing mesa 1, the slope of sliding platform 302 sets up on the support frame 301 fixed mounting has lift cylinder 303 on the crossbeam of the support frame 301 of the higher one side of sliding platform 302, lift baffle 304 with lift cylinder 303 output shaft is connected, through fixed guide rail slidable mounting in on the support frame 301 fixed mounting has a plurality of wedge pieces 305 on the lift baffle 304, just wedge piece 305 all with trapezoidal baffle 208 aligns lower one side is provided with spacing subassembly 306 on the sliding platform 302. The pipe to be processed can just fall into the lifting guide plate 304 on the pipe sliding platform 3 along the inclined plane of the trapezoid guide plate 208, and under the limit matching of the wedge block 305 on the lifting guide plate 304 and the support frame 301, the pipe to be processed is horizontally placed on the wedge block 305, so that a positioning effect is achieved, and the outer surface is polished. Then, the lifting cylinder 303 pushes the lifting guide plate 304 to move upward to the sliding platform 302, and the pipe to be processed freely slides to the position of the limit block 306b on the limit component 306.
As a preferred solution, as shown in fig. 4, the position limiting component 306 includes: a limit rotating shaft 306a, a limit block 306b, a gear 306c, a rack 306d, a first sliding block 306e and a rotating cylinder 306 f. Spacing pivot 306a rotates to be installed lower one side on tubular product sliding platform 3 spacing pivot 306a both sides fixedly connected with two stopper 306b spacing pivot 306a middle part fixed mounting has gear 306c, rack 306d with gear 306c meshes mutually, first sliding block 306e with rack 306d fixed connection, and through sliding guide slidable mounting in tubular product sliding platform 3 bottom, revolving cylinder 306f is fixed on tubular product sliding platform 3, its output shaft with first sliding block 306e is connected. At this moment, the effect of the limiting block 306b is the same as that of the wedge block 305, the pipe to be processed can just fall into the limiting block 306b on the pipe sliding platform 3 along the inclined plane of the pipe sliding platform 3, and under the limiting cooperation of the limiting block 306b on the limiting component 306 and the pipe sliding platform 3, the pipe to be processed is horizontally placed on the limiting block 306b, so that a positioning effect is achieved, and the inner surface is polished and processed. Then, the rotating cylinder 306f pushes the first sliding block 306e and the rack 306d to move on the sliding guide rail, and then the gear 306c drives the limiting rotating shaft 306a and the limiting block 306b to rotate by a predetermined angle until the limiting block 306b is flush with the sliding platform 302, and the pipe to be processed freely slides and is conveyed to the conveying belt 7.
As a preferred solution, as shown in fig. 5, the propelling mechanism 4 includes: a propulsion cylinder 401, a linear guide 402, a second slide block 403, a push rod 404, and a mechanical clamping jaw 405. The pushing cylinder 401 is fixedly installed on the processing table board 1, the linear guide rail 402 is fixed on the processing table board 1 and aligned with the pushing cylinder 401, the second sliding block 403 is installed on the linear guide rail 402 through a bearing and connected with an output shaft of the pushing cylinder 401, the pushing rod 404 is connected with the second sliding block 403 and aligned with the lowest point of the lifting guide plate 304, and the mechanical clamping jaw 405 is arranged at the other end of the pushing rod 404. The propulsion cylinders 401 in the two propulsion mechanisms 4 push the second sliding block 403 and the push rod 404 to one end of the pipe to be processed, the pipe to be processed is clamped by the mechanical clamping jaws 405 and continues to move forwards to the polishing mechanism, the pipe is loosened by the mechanical clamping jaws 405, and the pipe is polished in the polishing mechanism. After polishing, the mechanical clamping jaw 405 clamps the pipe to be processed again, pulls the pipe to be processed back to the wedge block 305, releases the mechanical clamping jaw 405, and returns to the initial state.
The polishing mechanism is arranged on one side of the feeding mechanism and is aligned with the propelling mechanism 4; in particular, it is composed of two parts, an outer surface polishing device 5 and an inner surface polishing device 6, which are respectively aligned with the two propelling mechanisms 4.
As a preferred embodiment, as shown in fig. 6, the outer surface polishing apparatus 5 includes: the polishing assembly is arranged at the starting end of the tube sliding platform 3 and is aligned with the propelling mechanism 4, two fixed conveyors are arranged at two sides of the polishing assembly, and at least one rotating roller 510 is arranged between the two fixed conveyors. Wherein the polishing assembly comprises: the grinding machine comprises two linear motion modules 502 which are arranged on the processing table board 1 and are adjusted through adjusting hand wheels 501, two first servo motors 503 with the same type which are fixedly arranged on sliding parts on the linear motion modules 502, rotary grinding wheels 504 connected with output shafts of the two first servo motors 503, and protective covers 505 arranged on the two rotary grinding wheels 504. As shown in fig. 7, the fixed conveyor includes: an upper pulley 506 and a lower pulley 507. The lower pulley 507 is a fixed pulley and is connected with a motor 508, and the upper pulley is a movable pulley and is connected with an electric adjusting wheel 509. The rotary roller 510 is composed of two rollers 510 which are fixedly arranged on the processing table board 1, tangent with the outer surface of the pipe to be processed and can freely rotate. When the pipe to be processed moves to the first fixed conveyor, the mechanical clamping jaw 405 is loosened, the upper pulley 506 presses down the pipe to be processed to limit the position, the motor 508 drives the lower pulley 507 to rotate, the pipe to be processed is conveyed to pass through the rotating roller 510, the rotating roller 510 drives the pipe to rotate along the axis, and after the pipe to be processed moves to the rotating grinding wheel 504, the pipe to be processed is polished in the opposite direction and at the same rotating speed under the driving of the two first servo motors 503 until the pipe to be processed is completely conveyed to the fixed conveyor at the other end, and the polishing of the pipe to be processed is completed; then, the two first servo motors 503, the motor 508 on the fixed conveyor are reversed, and reverse upward polishing is continued. The smooth and clean effect of the outer surface is improved by polishing and grinding the front surface and the back surface twice.
As a preferred embodiment, as shown in fig. 8, the inner surface polishing apparatus 6 includes: the pipe polishing machine comprises a second servo motor 601 arranged on the rack, an inner polishing rod 602 which is connected with the second servo motor 601 through a belt in a transmission way and has the diameter of 1/5 of the diameter of a pipe to be processed, and a plurality of polishing heads 603 which are arranged on the inner polishing rod 602 and are matched with the inner diameter of the pipe to be processed; a V-shaped clamp 604 arranged below the inner casting rod 602 and mounted on the processing table top 1, a fixing piece 605 arranged on the V-shaped clamp 604, and a linear motion assembly 606 arranged at the bottom of the V-shaped clamp 604. The linear motion assembly 606 is similar in structure to the propelling mechanism 4, and therefore will not be described in detail herein; the push rod in the propelling mechanism is replaced by a sliding platform which is fixedly arranged on the sliding block. When the pipe to be processed moves to the V-shaped clamp 604 and is sleeved on the inner polishing rod 602, the mechanical clamping jaw 405 is released and is fixed under the cooperation of the fixing component, the second servo motor 601 drives the plurality of polishing heads 603 to rotationally polish the inside of the pipe to be processed, and meanwhile, the V-shaped clamp 604 and the pipe to be processed are pushed by the linear motion component 606 to move for a preset distance in the horizontal direction and then return to the initial position again, so that the inner polishing process is completed.
As shown in fig. 9, the V-shaped clamp 604 is fixedly mounted on the sliding platform of the processing table 1; the fixing member 605 is a jig which moves up and down in the vertical direction by the cooperation of a linear module, and the linear module is fixed on the sliding platform through a plurality of brackets. The linear module can be a screw module driven by a motor or a slide block module pushed by an air cylinder, and the specific structure of the linear module is not limited specifically. However, a damping spring is required to be arranged at the connection of the linear motion module and the power device (motor and cylinder). Because interior throwing pole 602 can lead to treating the long-time vibration of processing tubular product at the polishing in-process, and then arouse the vibration of sharp module, at long-term vibration in-process, lead to the impaired of linear motion module easily, therefore, set up damping spring in sharp module and power device junction, can prolong the life of sharp module.
As a preferable mode, as shown in fig. 10 and 11, the projectile head 603 is made of an abrasive sheet 603a, and the projectile head 603 in the shape of a circular ring, a polygon or a cross is folded by folding the abrasive sheet 603a back and forth. Among them, a cross shape or a variation thereof such as a meter shape, a wave shape, and the like is preferable. When polishing by a wide margin and rocking, because cross or meter font is thrown first 603 and is flexible structure, can take place the deformation of certain degree, the polishing effort is more even, stress concentration's the condition can not appear, the condition that the roughness of tubular product inner wall becomes bigger can not appear more, improves product quality, reduces the rejection rate. In the practical use process, in the specific implementation process of the multiple flexible-structure polishing heads 603 in the technical scheme, when polishing is greatly shaken, the radial shaking amplitude of the inner polishing rod 602 and the polishing head 603 far away from one side of the fixed end of the belt is larger than the shaking amplitude of the inner polishing rod 602 and the polishing head 603 close to one side of the fixed end of the belt; thus, there will appear: after polishing, the roughness of the polishing areas of different polishing heads 603 has a difference of 0.05-0.10 um, and the closer to the fixed end of the belt, the larger the roughness. Therefore, in practical application, the diameter of the polishing head 603 close to the fixed end of the belt can be increased properly, and the diameter of the polishing head 603 far from the fixed end of the belt can be reduced, namely, the diameter of the polishing head 603 is gradually reduced from the fixed end of the belt to the position far from the fixed end of the belt.
The discharging mechanism is a conveying belt 7 arranged below the pipe sliding platform 3. And the materials are conveyed to the next working section through a conveying belt 7 for processing, so that the discharging is realized.
In order to facilitate understanding of the technical scheme of the polishing machine for the pipe, the working principle and the working process of the polishing machine are briefly described.
S1, the cut pipes are conveyed to the feeding bottom plate 202 of the disc feeding device 2 through the conveyor belt 7, a large number of pipes to be processed freely roll to the position of the limit baffle 203, the pipes can only enter the reserved space between the limit baffle 203 and the feeding disc 205 in sequence, the feeding disc 205 rotates under the driving of the rotating motor 209, when the material clamping groove 206 in the feeding disc 205 moves to the reserved space, the pipes freely roll to the material clamping groove 206, circular motion is carried out on the pipes along the feeding disc 205 under the matching of the arc-shaped limit plate 207, the pipes reach the trapezoidal guide plate 208 and fall onto the lifting guide plate 304 of the pipe sliding platform 3 along the inclined plane of the trapezoidal guide plate 208.
S2, under the matching of the wedge block 305 on the lifting guide plate 304 and the support frame 301, the pipe to be processed is horizontally placed on the wedge block 305, at this time, the pushing cylinder 401 in the first pushing mechanism 4 pushes the second sliding block 403 and the pushing rod 404 to one end of the pipe to be processed, and the mechanical clamping jaw 405 clamps the pipe to be processed and continues to move forwards to the outer surface polishing mechanism.
S3, when the pipe to be processed moves to the first fixed conveyor, the mechanical clamping jaw 405 is loosened, the upper pulley 506 presses downwards to limit the pipe to be processed, the motor 508 drives the lower pulley 507 to rotate, the pipe to be processed is conveyed to pass through the rotating roller 510, the rotating roller 510 drives the pipe to rotate along the axis, when the pipe to be processed moves to the rotating grinding wheel 504, the pipe to be processed is polished in the opposite direction and at the same rotating speed under the driving of the two first servo motors 503 until the pipe to be processed is completely conveyed to the fixed conveyor at the other end, and the polishing of the pipe to be processed is completed.
S4, reversing the two first servo motors 503 and the motor 508 on the fixed conveyor, and continuing to perform reverse upward polishing; finally, the pipe to be processed is conveyed to the mechanical clamping jaw 405, the mechanical clamping jaw 405 clamps the pipe to be processed again, the pipe to be processed is pulled back to the wedge block 305, and the mechanical clamping jaw 405 is loosened and horizontally placed.
S5, the lifting cylinder 303 pushes the lifting guide plate 304 to move upward to the sliding platform 302, the pipe to be processed slides freely to the position of the limiting block 306b on the limiting component 306, the pushing cylinder 401 in the second pushing mechanism 4 pushes the second sliding block 403 and the pushing rod 404 to one end of the pipe to be processed, and the mechanical clamping jaw 405 clamps the pipe to be processed and continues to move forward to the inner surface polishing mechanism, as in step S2.
S6, when the pipe to be processed moves to the V-shaped clamp 604 and is sleeved on the inner polishing rod 602, the mechanical clamping jaw 405 is loosened and fixed under the matching of the fixing component, the second servo motor 601 drives the plurality of polishing heads 603 to rotationally polish the inside of the pipe to be processed, meanwhile, the V-shaped clamp 604 and the pipe to be processed are pushed by the linear motion component 606 to move for a preset distance in the horizontal direction, and then the pipe to be processed returns to the initial position again, so that the inner polishing process is completed.
S7, clamping the pipe to be processed again by the mechanical clamping jaw 405, pulling the pipe to be processed back to the position of the limiting assembly 306, loosening the mechanical clamping jaw 405, and horizontally placing; then the rotating cylinder 306f pushes the first sliding block 306e and the rack 306d to move on the sliding guide rail, and then the gear 306c drives the limiting rotating shaft 306a and the limiting block 306b to rotate for a predetermined angle until the limiting block 306b is flush with the sliding platform 302, the pipe to be processed freely slides to the conveying belt 7, discharging is realized, and the pipe is conveyed to the next working section through the conveying belt 7 for processing.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (1)
1. A polishing method of a polishing machine for pipes, characterized in that the polishing machine comprises:
the basic mechanism comprises a rack, a processing table top arranged above the rack, a power distribution system and a PLC control system arranged in the rack;
the feeding mechanism comprises a disc feeding device arranged on the processing table surface, a pipe sliding platform arranged below the disc feeding device, and two linear pushing mechanisms respectively arranged at the starting end and the tail end of the pipe sliding platform;
the polishing mechanism is arranged on one side of the feeding mechanism and is aligned with the propelling mechanism; the polishing device comprises an outer surface polishing device and an inner surface polishing device which are respectively aligned with two propelling mechanisms;
the discharging mechanism is a conveying belt arranged below the pipe sliding platform;
the tubular product sliding platform includes: the device comprises a support frame, a sliding platform, a lifting cylinder, a lifting guide plate, a plurality of wedge blocks and a limiting assembly, wherein the support frame is arranged at the lower end of the disc feeding device and is fixedly arranged on the processing table board;
the disc feeding device comprises: the feeding bottom plate is arranged above the lower side of the feeding bottom plate through a cross beam, and is provided with a limit baffle plate with a preset distance between the two supporting side plates, the feeding rotating shaft is fixedly arranged on one side of the limit baffle plate, a plurality of feeding disks are fixedly arranged on the feeding rotating shaft and pass through the circle center of the feeding rotating shaft along with the extension line of the feeding bottom plate, material clamping grooves which are arranged at the outer edges of the feeding disks and have the same shape and size with the pipe to be processed are arranged above the feeding disks, are matched with the outer contour of the feeding disks, are fixed on arc-shaped limiting plates on the two supporting side plates through cross beams, and are fixedly arranged at the lowest point on the feeding bottom plate and are positioned on a trapezoidal guide plate below the arc-shaped limiting plates, the rotating motor is connected with the feeding rotating shaft through a belt;
the spacing subassembly includes: the pipe sliding device comprises a limiting rotating shaft, two limiting blocks, a gear, a rack, a first sliding block and a rotating cylinder, wherein the limiting rotating shaft is rotatably arranged on one lower side of the pipe sliding platform, the two limiting blocks are fixedly connected to two sides of the limiting rotating shaft, the gear is arranged in the middle of the limiting rotating shaft, the rack is meshed with the gear, the first sliding block is slidably arranged at the bottom of the pipe sliding platform through a sliding guide rail and is fixedly connected with the rack, and the rotating cylinder is connected with the first sliding block and is fixed on the pipe sliding platform;
the propulsion mechanism includes: the device comprises a propelling cylinder fixedly arranged on a processing table board, a linear guide rail which is fixed on the processing table board and is aligned with the propelling cylinder, a second sliding block which is arranged on the linear guide rail through a bearing and is connected with an output shaft of the propelling cylinder, a pushing rod connected with the second sliding block, and a mechanical clamping jaw arranged at the other end of the pushing rod;
the outer surface polishing apparatus includes: the polishing assembly is arranged at the starting end of the pipe sliding platform and is aligned with the propelling mechanism, the two fixed conveyors are positioned at two sides of the polishing assembly, and the rotating roller is arranged between the two fixed conveyors; the polishing assembly comprises two linear motion modules which are arranged on the processing table top and are adjusted through an adjusting hand wheel, two first servo motors which are fixedly arranged on a sliding part on the linear motion modules and are of the same type, rotary grinding wheels connected with output shafts of the two first servo motors, and protective covers arranged on the two rotary grinding wheels; the fixed conveyor comprises an upper pulley and a lower pulley, the lower pulley is a fixed pulley and is connected with a motor, and the upper pulley is a movable pulley and is connected with an electric regulating wheel; the rotating rollers are two rollers which are fixedly arranged on the processing table surface, are tangent to the outer surface of the pipe to be processed and can rotate freely;
the inner surface polishing apparatus includes: the pipe polishing machine comprises a frame, a first servo motor, an inner polishing rod, a plurality of polishing heads and a plurality of polishing heads, wherein the first servo motor is arranged on the frame, the inner polishing rod is connected with the first servo motor through a belt in a transmission mode and has the diameter of 1/5 equal to the diameter of a pipe to be processed, and the plurality of polishing heads are arranged on the inner polishing rod and are matched with the inner diameter of the pipe to be processed; the V-shaped clamp is arranged below the inner throwing rod and is installed on the processing table surface, the fixing piece is arranged on the V-shaped clamp, and the bottom of the V-shaped clamp is provided with a linear motion assembly; the fixing piece is a clamp which moves up and down in a vertical direction in a way of being matched by a linear module;
the polishing method comprises the following steps:
s1, conveying the cut pipes to a feeding bottom plate of a disc feeding device through a conveying belt, enabling a large number of pipes to be processed to freely roll down to a limiting baffle, enabling the pipes to only singly and sequentially enter a reserved space between the limiting baffle and a feeding disc, rotating the feeding disc under the driving of a rotating motor, enabling the pipes to freely roll into clamping grooves when the clamping grooves in the feeding disc move to the reserved space, enabling the pipes to circularly move along the feeding disc under the matching of an arc limiting plate to reach a trapezoid guide plate, and enabling the pipes to fall onto a lifting guide plate of a pipe sliding platform along the inclined surface of the trapezoid guide plate;
s2, under the matching of the wedge block on the lifting guide plate and the support frame, the pipe to be processed is horizontally placed on the wedge block, at the moment, a pushing cylinder in a first pushing mechanism pushes a second sliding block and a pushing rod to one end of the pipe to be processed, and a mechanical clamping jaw clamps the pipe to be processed and continues to move forwards to the outer surface polishing device;
s3, when the pipe to be processed moves to the first fixed conveyor, the mechanical clamping jaw is loosened, the upper pulley is pressed downwards to limit the pipe to be processed, the motor drives the lower pulley to rotate, the pipe to be processed is conveyed to pass through the rotating roller, the rotating roller drives the pipe to rotate along the axis, when the pipe to be processed moves to the rotating grinding wheel, the pipe to be processed is polished in opposite directions at the same rotating speed under the drive of the two first servo motors until the pipe to be processed is completely conveyed to the fixed conveyor at the other end, and the polishing of the pipe to be processed is completed;
s4, reversing the two first servo motors and the motors on the fixed conveyor, and continuing to perform reverse upward polishing; finally, the pipe to be processed is conveyed to the mechanical clamping jaw, the mechanical clamping jaw clamps the pipe to be processed again, the pipe to be processed is pulled back to the wedge block, the mechanical clamping jaw is loosened, and the pipe to be processed is horizontally placed;
s5, the lifting cylinder pushes the lifting guide plate to move upwards to the sliding platform, the pipe to be processed freely slides to the position of the limiting block on the limiting assembly, the same as the step S2, the pushing cylinder in the second pushing mechanism pushes the second sliding block and the pushing rod to one end of the pipe to be processed, and the mechanical clamping jaw clamps the pipe to be processed and continues to move forwards to the inner surface polishing device;
s6, when the pipe to be processed moves to the V-shaped clamp and is sleeved on the inner polishing rod, the mechanical clamping jaw is loosened and fixed under the matching of the fixing component, the second servo motor drives the plurality of polishing heads to rotationally polish the inside of the pipe to be processed, meanwhile, the V-shaped clamp and the pipe to be processed are pushed to move for a preset distance in the horizontal direction through the linear movement component, and then the pipe to be processed returns to the initial position again, so that the inner polishing process is completed;
s7, clamping the pipe to be processed again by the mechanical clamping jaw, pulling the pipe to be processed back to the position of the limiting assembly, loosening the mechanical clamping jaw, and horizontally placing; then revolving cylinder promotes first sliding block and rack and moves on sliding guide, and then drives spacing pivot and the rotatory predetermined angle of stopper through the gear, and to stopper and sliding platform parallel and level, treat that processing tubular product freely slides, to the transmission band, realize the ejection of compact, convey to next workshop section through the transmission band and process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010982329.8A CN112247818B (en) | 2019-07-26 | 2019-07-26 | Polishing method of polishing machine for pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010982329.8A CN112247818B (en) | 2019-07-26 | 2019-07-26 | Polishing method of polishing machine for pipes |
| CN201910681412.9A CN110253412B (en) | 2019-07-26 | 2019-07-26 | Polishing machine for pipes and polishing method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910681412.9A Division CN110253412B (en) | 2019-07-26 | 2019-07-26 | Polishing machine for pipes and polishing method thereof |
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| CN112247818A CN112247818A (en) | 2021-01-22 |
| CN112247818B true CN112247818B (en) | 2021-11-19 |
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| CN201910681412.9A Active CN110253412B (en) | 2019-07-26 | 2019-07-26 | Polishing machine for pipes and polishing method thereof |
| CN202010982329.8A Active CN112247818B (en) | 2019-07-26 | 2019-07-26 | Polishing method of polishing machine for pipes |
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| KR20130091568A (en) * | 2012-02-08 | 2013-08-19 | 황주연 | Surface machining apparatus of workpiece |
| CN203887688U (en) * | 2014-06-04 | 2014-10-22 | 九牧厨卫股份有限公司 | Feeding and discharging device of straight pipe polishing |
| CN203945240U (en) * | 2014-07-21 | 2014-11-19 | 廖勇 | The inside and outside polishing mechanism of a kind of body |
| CN105619213A (en) * | 2016-01-07 | 2016-06-01 | 温州大学 | Automatic polishing system for cylindrical workpiece |
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| CN207206015U (en) * | 2017-09-27 | 2018-04-10 | 崔汉春 | Polishing rust-removal machine inside and outside one kind automation steel pipe |
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| JPS63212451A (en) * | 1987-02-28 | 1988-09-05 | Kawasaki Steel Corp | Grinding/polishing/cleaning for pipe end inner face |
| CN203665288U (en) * | 2014-01-24 | 2014-06-25 | 宁波永信精密管业有限公司 | Device for polishing inside of steel tube orifice |
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| CN107030588A (en) * | 2017-05-31 | 2017-08-11 | 嘉善宝狐服饰有限公司 | A kind of seamless pipe polishing machine |
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| CN108326721B (en) * | 2018-01-10 | 2020-05-22 | 温州职业技术学院 | Polishing machine for inner wall of steel pipe |
| CN209050582U (en) * | 2018-11-28 | 2019-07-02 | 株洲市紫金科技有限公司 | A kind of tubing automatic polishing machine |
| CN110253412B (en) * | 2019-07-26 | 2020-10-13 | 南京禹智智能科技有限公司 | Polishing machine for pipes and polishing method thereof |
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2019
- 2019-07-26 CN CN201910681412.9A patent/CN110253412B/en active Active
- 2019-07-26 CN CN202010982329.8A patent/CN112247818B/en active Active
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2020
- 2020-05-20 WO PCT/CN2020/091197 patent/WO2021017586A1/en active Application Filing
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| JP2002200544A (en) * | 2000-12-28 | 2002-07-16 | Fuji Kuki Kk | Machine for polishing internal and external face of pipe |
| KR20130091568A (en) * | 2012-02-08 | 2013-08-19 | 황주연 | Surface machining apparatus of workpiece |
| CN203887688U (en) * | 2014-06-04 | 2014-10-22 | 九牧厨卫股份有限公司 | Feeding and discharging device of straight pipe polishing |
| CN203945240U (en) * | 2014-07-21 | 2014-11-19 | 廖勇 | The inside and outside polishing mechanism of a kind of body |
| CN105619213A (en) * | 2016-01-07 | 2016-06-01 | 温州大学 | Automatic polishing system for cylindrical workpiece |
| CN205888825U (en) * | 2016-07-14 | 2017-01-18 | 苏州亿志成机电科技有限公司 | Automatic inside and outside burnishing machine of nonrust steel pipe of numerical control |
| CN207206015U (en) * | 2017-09-27 | 2018-04-10 | 崔汉春 | Polishing rust-removal machine inside and outside one kind automation steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110253412A (en) | 2019-09-20 |
| CN110253412B (en) | 2020-10-13 |
| WO2021017586A1 (en) | 2021-02-04 |
| CN112247818A (en) | 2021-01-22 |
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