CN113001344A - Grinding head equipment for grinding welding line - Google Patents

Grinding head equipment for grinding welding line Download PDF

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Publication number
CN113001344A
CN113001344A CN202110123993.1A CN202110123993A CN113001344A CN 113001344 A CN113001344 A CN 113001344A CN 202110123993 A CN202110123993 A CN 202110123993A CN 113001344 A CN113001344 A CN 113001344A
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CN
China
Prior art keywords
connecting plate
connecting rod
grinding
limiting
grinding head
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Granted
Application number
CN202110123993.1A
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Chinese (zh)
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CN113001344B (en
Inventor
黄云
邹晓
刘岗
肖贵坚
罗小龙
朱升旺
陈本强
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Chongqing Samhida Grinding Machine Co ltd
Chongqing University
Original Assignee
Chongqing Samhida Grinding Machine Co ltd
Chongqing University
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Priority to CN202110123993.1A priority Critical patent/CN113001344B/en
Publication of CN113001344A publication Critical patent/CN113001344A/en
Application granted granted Critical
Publication of CN113001344B publication Critical patent/CN113001344B/en
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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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/002—Machines or devices using grinding or polishing belts; Accessories therefor for grinding edges or bevels
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/008—Machines comprising two or more tools or having several working posts
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
    • 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
    • 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
    • B24B41/02—Frames; Beds; Carriages
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention discloses a welding seam polishing grinding head device which comprises a host machine body, a transverse moving guide rail, an upright post lifting mechanism, a driving feeding system, a tensioning mechanism, a processing polishing system, a positioning limiting system and a laser welding seam tracking system, wherein the host machine body is connected with the transverse moving guide rail through a connecting rod; the grinding head equipment is mainly used for grinding and polishing straight welding seams outside pipelines, can continuously adjust the height of the grinding head and the length of grinding welding seams according to the change of production specifications, detects the position, the thickness and the like of the welding seams through a laser welding seam tracking system to carry out full-automatic grinding operation, and can detect the extra height of the welding seams after grinding; the invention has the advantages of high production efficiency, low labor intensity, high automation degree, good welding seam polishing effect and no damage to the pipe body.

Description

Grinding head equipment for grinding welding line
Technical Field
The invention belongs to the technical field of grinding machines, and particularly relates to welding seam grinding head equipment.
Background
With the rapid development of pipelines for oil and gas transportation at home and abroad, further requirements are put forward on the quality of the pipelines. The traditional welding line polishing is usually carried out by manually polishing by using a grinding wheel, so that the labor intensity is high, the working condition of workers is severe, and the polishing quality and precision are difficult to guarantee. The traditional welding seam polishing efficiency is low, and the requirement of mass pipeline production is difficult to meet. Usually, the weld surface of the traditional ground weld is uneven, and the local thickness of the weld is inconsistent, so that the reliability of the weld is reduced, the long-term reliable use of the weld is difficult to ensure, and the excessive height or the excessive low height of the weld are not favorable for assembly, so that the precision of pipeline installation is poor. Therefore, an automatic welding line grinding and polishing device is urgently needed to replace manpower.
Usually, the outer surface of the pipeline is sprayed with a coating to meet the requirement of corrosion resistance, when the height of the pipeline after the pipeline welding seam is polished is too high, the coating is increased, and the production time and the cost are increased during mass production. And secondary grinding is usually adopted when the residual height is too high, so that the production working hour and the production cost are increased, and the transition position of the welded joint after grinding usually has sharp corners and non-smooth phenomena, so that the risks of stress concentration, fracture and the like are caused in the practical application of the pipeline. If the manual grinding amount is too large, the pipeline is scrapped and difficult to repair.
There is therefore a great need in the art for a weld grinding apparatus that solves the above problems.
Disclosure of Invention
The technical scheme adopted for achieving the purpose of the invention is that the welding seam grinding head equipment comprises a main machine body, a transverse moving guide rail, an upright post lifting mechanism, a driving feeding system, a tensioning mechanism, a processing grinding and polishing system, a positioning limiting system and a laser welding seam tracking system.
The transverse moving guide rail is transversely arranged on the main machine body.
The upright post lifting mechanism is connected on the transverse moving guide rail in a sliding manner.
The driving and feeding system comprises a connecting plate I, a floating cutter lifting mechanism, a connecting rod mechanism and a vertical supporting column.
And the connecting plate I is vertically arranged on the upright post lifting mechanism. When the upright post lifting mechanism is lifted, the connecting plate I is driven to do lifting motion.
The connecting rod mechanism comprises a connecting rod I, a connecting rod II, a connecting rod III, a connecting rod supporting seat I and a connecting rod supporting seat II.
The connecting rod supporting seat I is fixedly connected to the lower end of the connecting plate I. The connecting rod I is hinged to the connecting rod supporting seat I.
And the connecting rod supporting seat II is fixedly connected to the lower end of the upright post lifting mechanism. And the connecting rod III is hinged on the connecting rod supporting seat II. The connecting rod III and the connecting rod I are arranged at intervals, and the connecting rod III is located below the connecting rod I. The upper end of the connecting rod II is hinged to the end part of the connecting rod I, and the upper end of the connecting rod II is hinged to the end part of the connecting rod III.
The lower end of the vertical supporting column is fixed on the connecting rod I.
The floating cutter lifting mechanism comprises a cylinder, a tension spring and a tension spring fixing seat.
And the tension spring fixing seat is installed at the upper end of the vertical supporting column.
The cylinder seat of the cylinder is hinged on the connecting plate I, and the telescopic end of the cylinder is hinged on the tension spring fixing seat.
One end of the tension spring is hinged to the connecting plate I, and the other end of the tension spring is connected to the tension spring fixing seat.
The tensioning system comprises a tensioning cylinder support, a tensioning cylinder and a motor fixing seat.
The tensioning cylinder support is fixedly connected to the connecting rod I. The motor fixing seat is hinged to the vertical supporting column. The tensioning cylinder is located below the tensioning cylinder support. The cylinder seat of the tensioning cylinder is hinged to the tensioning cylinder support, and the telescopic end of the tensioning cylinder is hinged to the motor fixing seat.
The processing grinding and polishing system comprises a driving motor, a driving wheel, an abrasive belt, a fixed seat, two guide wheels and a contact wheel.
The driving motor is fixedly connected to the motor fixing seat. The driving wheel is fixedly connected to the output end of the driving motor.
The fixed seat is fixedly connected at the lower end of the connecting rod II. The lower end of the fixed seat is provided with an accommodating cavity.
The two guide wheels are arranged in the accommodating cavity of the fixed seat at intervals. The abrasive belts are respectively wound on the driving wheel and the two guide wheels. The contact wheel is arranged in the accommodating cavity of the fixed seat and positioned between the two guide wheels, and a gap is formed between the contact wheel and the abrasive belt.
The positioning and limiting system comprises a connecting plate II and a grinding head limiting wheel mechanism.
The connecting plate II is fixedly connected to the side wall of the fixed seat.
The grinding head limiting wheel mechanism comprises a limiting column, a planetary reducer, a servo motor, a screw rod, a limiting wheel leg and a limiting wheel.
The limiting column is of a hollow structure. The planetary reducer is installed at the upper end of the limiting column. The servo motor is installed on the planetary speed reducer, and the output end of the servo motor is connected with the input end of the planetary speed reducer. The screw rod is located inside the limiting column and fixedly connected to the output end of the planetary speed reducer. The upper ends of the limiting wheel legs extend into the limiting columns and are connected with the screw rod through threads. The lower ends of the limiting wheel legs penetrate out of the limiting columns and are connected with the limiting wheels.
The laser weld tracking system includes a laser detector and a controller. The laser detector is installed on the fixing seat. The controller is respectively in communication connection with the laser detector, the air cylinder, the tensioning air cylinder, the driving motor, the servo motor and the upright post lifting mechanism.
Further, the device also comprises an offset correction system. The deviation-adjusting and correcting system comprises a deviation-adjusting support, a locking nut, a deviation-adjusting bolt, a connecting plate center pin shaft, a connecting plate lower fixing bolt and a connecting plate upper fixing bolt.
The deviation adjusting support is fixedly connected to the upright post lifting mechanism. The deviation adjusting bolt is screwed into the deviation adjusting support and is in contact with the connecting plate I. The locking nut is sleeved on the deviation adjusting bolt and is positioned between the deviation adjusting support and the nut of the deviation adjusting bolt.
And the lower connecting plate fixing bolt and the upper connecting plate fixing bolt are arranged on the connecting plate I at intervals, and are screwed into the upright post lifting mechanism. Wherein, the connecting plate lower part fixing bolt is positioned below the connecting plate upper part fixing bolt. And the central pin shaft of the connecting plate penetrates through the middle part of the connecting plate I and is fixed on the upright post lifting mechanism. And the central pin shaft of the connecting plate is positioned between the fixing bolt at the lower part of the connecting plate and the fixing bolt at the upper part of the connecting plate.
Further, still include bistrique guard shield. The grinding head shield covers the driving feeding system, the tensioning mechanism, the processing grinding and polishing system and the positioning and limiting system.
Further, the vacuum cleaner also comprises a dust suction pipeline and a dust collector.
The dust collector is arranged on the main machine body. The dust absorption pipeline is connected with a dust collector, and the other end of the dust absorption pipeline is connected to the upper end of the grinding head protective cover and communicated with the inside of the grinding head protective cover.
Further, the lower end of the limiting wheel leg is provided with a limiting wheel mounting groove, and the limiting wheel is rotatably connected in the limiting wheel mounting groove at the lower end of the limiting wheel leg.
The technical effects of the present invention are undoubtedly as follows:
(1) the grinding amount can be controlled by adjusting the height of the limiting wheel and the feeding pressure of the floating cutter lifting mechanism.
(2) The grinding head can move up and down through the floating knife picking mechanism and the connecting rod mechanism, and the degree of automation is high.
(3) The abrasive belt on the outer side of the contact wheel rotates at a high speed to polish and grind the workpiece, so that the polishing quality is good, the reliability is high, and the production efficiency is high.
(4) Electrified abrasive belt loading and unloading can be realized through the tensioning mechanism, the abrasive belt is convenient to replace, and the operability is good.
(5) The stable operation condition of the abrasive belt can be ensured through the deviation adjusting mechanism and the like. The accurate grinding of the weld reinforcement can be ensured through the accurate positioning of the limiting wheel mechanism, the guide wheel to the grinding head assembly and the contact wheel.
(6) According to the change of the pipeline production specification, the height of the grinding head and the length of the grinding weld can be continuously adjusted, and the full-automatic grinding operation is carried out by detecting the position, the thickness and the like of the weld through an online laser detector.
(7) For parts with longer length, two groups of grinding heads can be adopted to grind the welding line in the same direction at the same time, so that the labor intensity is low and the production efficiency is high.
(8) Adopt laser welding seam tracking system to detect the welding seam surplus height after the grinding is accomplished, after the welding seam reaches the technological requirement, carry the work piece to next station through V type gyro wheel, this equipment production efficiency is high, degree of automation is high, the welding seam is polished effectually, and the welding seam is of high quality after polishing, and does not harm the tubular product body.
Drawings
Fig. 1 is a schematic view of the overall structure of the grinding head apparatus of the present invention;
FIG. 2 is a schematic view of the distribution of the laterally moving guide rails and the column lift mechanism;
fig. 3 is a left side view structural schematic diagram of the grinding head of the present invention;
fig. 4 is a front view of the grinding head of the present invention;
FIG. 5 is a schematic structural diagram of a grinding head limiting wheel mechanism of the invention;
FIG. 6 is a front view of a laser detector;
FIG. 7 is a schematic diagram of an offset correction system;
FIG. 8 is a schematic structural view of a floating cutter lifting mechanism;
fig. 9 is a schematic view of the tensioning mechanism.
In the figure: the device comprises a host machine body 1, a transverse moving guide rail 2, an upright lifting mechanism 3, a connecting plate I4, a floating cutter lifting mechanism 5, a cylinder 501, a tension spring screw 502, a cylinder joint 503, a tension spring 504, a tension spring fixing seat 505, a connecting rod I6, a hinge shaft I601, a connecting rod II7, a hinge shaft III701, a hinge shaft IV702, a connecting rod III8, a hinge shaft II801, a vertical supporting column 9, a tension cylinder support 10, a tension cylinder 11, a motor fixing seat 12, a driving motor 13, a driving wheel 14, an abrasive belt 15, a fixing seat 16, a guide wheel 17, a contact wheel 18, a connecting plate II19, a grinding head limiting wheel mechanism 20, a limiting column 201, a planetary reducer 202, a servo motor 203, a lead screw 204, a limiting wheel leg 205, a limiting wheel mounting groove 2051, a limiting wheel 206, a laser detector 21, a deviation adjusting support 22, a connecting rod support I23, a grinding head shield 24, a dust suction pipeline 25, an offset bolt 30, a connecting plate central pin 31, a connecting plate lower fixing bolt 32 and a connecting plate upper fixing bolt 33.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a welding seam grinding head device, which is shown in fig. 1 to 4 and comprises a main machine body 1, a transverse moving guide rail 2, an upright post lifting mechanism 3, a driving feeding system, a tensioning mechanism, an offset correction system, a processing grinding and polishing system, a positioning and limiting system, a laser welding seam tracking system, a grinding head shield 24, a dust suction pipeline 25 and a dust collector 26.
The transverse moving guide rail 2 is transversely arranged on the main machine body 1. The traverse guide 2 is provided with a slide mechanism which can move along the traverse guide 2.
The upright post lifting mechanism 3 is fixedly connected to the upper slide wire mechanism of the transverse moving guide rail 2. The upright post lifting mechanism 3 is driven by the slide wire mechanism to move along the transverse moving guide rail 2.
The drive feed system comprises a connecting plate I4, a floating cutter lifting mechanism 5, a link mechanism and a vertical supporting column 9.
The connecting plate I4 is vertically arranged on the upright post lifting mechanism 3. When the upright post lifting mechanism 3 is lifted, the connecting plate I4 can be driven to do lifting movement.
The link mechanism comprises a link I6, a link II7, a link III8, a link support seat I23 and a link support seat II 27.
The connecting rod supporting seat I23 is fixedly connected to the lower end of the connecting plate I4. The connecting rod I6 is hinged on the connecting rod supporting seat I23 through a hinge shaft I601.
And the connecting rod supporting seat II27 is fixedly connected to the lower end of the upright post lifting mechanism 3. The connecting rod III8 is hinged on the connecting rod supporting seat II27 through a hinge shaft II 801. The link III8 is arranged at a distance from the link I6, and the link III8 is located below the link I6. The upper end of the connecting rod II7 is hinged at the end of the connecting rod I6 through a hinge shaft III701, and the upper end of the connecting rod II7 is hinged at the end of the connecting rod III8 through a hinge shaft IV 702.
The lower end of the vertical supporting column 9 is fixed on a connecting rod I6.
Referring to fig. 8, the floating cutter lifting mechanism 5 includes a cylinder 501, a tension spring 504 and a tension spring holder 505.
The tension spring fixing seat 505 is fixedly connected to the upper end of the vertical supporting column 9 through a screw.
The cylinder seat of the cylinder 501 is hinged on the connecting plate I4, and the telescopic end of the cylinder 501 is hinged on the tension spring fixing seat 505 through the cylinder joint 503.
One end of the tension spring 504 is hinged on the connecting plate I4, and the other end is connected on the tension spring fixing seat 505 through the tension spring screw 502.
Referring to fig. 9, the tensioning system includes a tensioning cylinder support 10, a tensioning cylinder 11, and a motor fixing base 12.
The tensioning cylinder support 10 is fixedly connected to a connecting rod I6. The motor fixing seat 12 is hinged to the vertical supporting column 9. The tensioning cylinder 11 is located below the tensioning cylinder support 10. The cylinder seat of the tensioning cylinder 11 is hinged on the tensioning cylinder support 10, and the telescopic end of the tensioning cylinder 11 is hinged on the motor fixing seat 12.
The processing grinding and polishing system comprises a driving motor 13, a driving wheel 14, an abrasive belt 15, a fixed seat 16, two guide wheels 17 and a contact wheel 18.
The driving motor 13 is fixedly connected to the motor fixing seat 12. The driving wheel 14 is fixedly connected to the output end of the driving motor 13.
The fixed seat 16 is fixedly connected with the lower end of the connecting rod II 7. The lower end of the fixed seat 16 is provided with a containing cavity.
Two guide wheels 17 are installed in the accommodating cavity of the fixed seat 16 at intervals. The sanding belt 15 is wound around the drive wheel 14 and the two guide wheels 17, respectively. The contact wheel 18 is mounted in the receiving cavity of the holder 16 between the two guide wheels 17, with a gap between the contact wheel 18 and the sanding belt 15.
The positioning and limiting system comprises a connecting plate II19 and a grinding head limiting wheel mechanism 20.
The connecting plate II19 is fixed on the side wall of the fixed seat 16 through screws.
The grinding head limiting wheel mechanism 20 comprises a limiting column 201, a planetary reducer 202, a servo motor 203, a screw rod 204, a limiting wheel leg 205 and a limiting wheel 206.
The limiting column 201 is of a hollow structure. The planetary reducer 202 is mounted at the upper end of the limiting column 201 through a screw. The servo motor 203 is installed on the planetary reducer 202, and the output end of the servo motor 203 is connected with the input end of the planetary reducer 202. The screw rod 204 is located inside the limiting column 201, and the screw rod 204 is fixedly connected to the output end of the planetary reducer 202. The upper ends of the limiting wheel legs 205 extend into the limiting columns 201 and are in threaded connection with the screw rods 204. The lower ends of the limiting wheel legs 205 penetrate out of the limiting column 201 and are connected with the limiting wheels 206. Specifically, the lower end of the limiting wheel leg 205 is provided with a limiting wheel mounting groove 2051, and the limiting wheel 206 is rotatably connected to the limiting wheel mounting groove 2051 at the lower end of the limiting wheel leg 205.
Referring to fig. 6, the laser seam tracking system includes a laser detector 21 and a controller. The laser detector 21 is mounted on the holder 16. The controller is respectively connected with the laser detector 21, the air cylinder 501, the tensioning air cylinder 11, the driving motor 13, the servo motor 203 and the upright post lifting mechanism 3 in a communication way.
Referring to fig. 7, the offset-correcting system includes an offset support 22, a lock nut 29, an offset bolt 30, a coupling plate center pin 31, a coupling plate lower fixing bolt 32, and a coupling plate upper fixing bolt 33.
The deviation-adjusting support 22 is fixedly connected to the upright lifting mechanism 3. The offset bolt 30 is screwed into the offset support 22 and contacts the attachment plate I4. The locking nut 29 is sleeved on the offset bolt 30 and is positioned between the offset support 22 and the nut of the offset bolt 30.
The connecting plate lower fixing bolt 32 and the connecting plate upper fixing bolt 33 are installed on the connecting plate I4 at intervals, and the connecting plate lower fixing bolt 32 and the connecting plate upper fixing bolt 33 are screwed on the upright lifting mechanism 3. Wherein the coupling plate lower fixing bolt 32 is located below the coupling plate upper fixing bolt 33. The central pin 31 of the connecting plate penetrates through the middle part of the connecting plate I4 and is fixed on the upright post lifting mechanism 3. The coupling plate center pin 31 is located between the coupling plate lower fixing bolt 32 and the coupling plate upper fixing bolt 33.
When grinding head deviation adjustment is carried out, the deviation adjustment bolt 30 rotates and abuts against the connecting plate I4, after the deviation adjustment bolt 30 rotates and feeds, the connecting plate I4 is forced to rotate around the axis of the connecting plate I central pin shaft 31, when the connecting plate I4 is forced to rotate, other grinding head components connected to the connecting plate I4 are driven to rotate around the axis of the connecting plate I central pin shaft 31, when the axis of the contact wheel 18 is parallel to the horizontal ground, the rotation and feeding of the deviation adjustment bolt 30 are stopped, and deviation adjustment is finished. After the offset adjustment is finished, the position of the connecting plate I4 is fixed, at this time, the offset adjusting bolt 30 needs to be locked by the locking nut 29, and the connecting plate lower fixing bolt 32 and the connecting plate upper fixing bolt 33 are screwed and abutted into the upright lifting mechanism 3. In order to prevent the bolt loosening after the offset occurs during the later-stage production and processing of the welding seam and ensure that the position of the connecting plate I4 is not changed, the connecting rod supporting seat II27 is directly welded on the upright lifting mechanism 3, and the welding point 28 is shown in fig. 7.
The grinding head protective cover 24 covers the driving feeding system, the tensioning mechanism, the processing grinding and polishing system and the positioning limiting system, and the dust collector 26 is integrally covered by the grinding head and is arranged on the main machine body 1. The dust suction pipe 25 is connected with a dust collector 26, the other end of the dust suction pipe is connected with the upper end of the grinding head protective cover 24 and communicated with the inside of the grinding head protective cover 24, so that dust generated by grinding is sucked away by the dust collector 26 through the dust suction pipe 25.
The tensioning mechanism adjusts the contact between the abrasive belt 15 and the driving wheel 14 under the action of the tensioning cylinder 11, when the abrasive belt 15 needs to be replaced, the air source of the tensioning cylinder 11 is manually controlled to be turned off, so that the tensioning cylinder 11 drives the motor fixing seat 12 and the driving wheel 14 to descend, and the abrasive belt 15 can be replaced; when loading the belt, the direction of the arrow marked on the back of the abrasive belt 15 must be consistent with the correct belt running direction of the abrasive belt 15 during grinding, and after loading the abrasive belt 15, the air source of the tensioning cylinder 11 is manually controlled and connected to enable the tensioning cylinder 11 to ascend to tighten the abrasive belt 15, so that the abrasive belt 15 is tightly jointed with the driving wheel 14 again.
Through the combined action of the cylinder 501 and the tension spring 504 of the floating knife picking mechanism 5, the deviation adjusting support 22, the link mechanism and the grinding head limiting wheel mechanism 20, when the cylinder 501 of the floating knife picking mechanism 5 increases the feeding pressure, the guide wheel 17 descends, the contact wheel 18 abuts against the welding seam of the contact pipeline, and the abrasive belt 15 in the contact area forms a half-moon-shaped enveloping grinding area. After the removal amount of the residual weld of the pipeline reaches a set value, the limiting wheel 206 of the grinding head limiting wheel mechanism 20 starts to abut against the outer wall of the contact pipeline, and the contact wheel 18 cannot be pressed down continuously, so that the accurate control of the removal of the residual weld is achieved. The size of the weld grinding amount can be controlled by adjusting the height of the limiting wheel 206 in the grinding head limiting wheel mechanism 20 and adjusting the pressure of the rear feeding of the air cylinder 501 of the floating tool picking mechanism 5.
During grinding, the driving motor 13 drives the driving wheel 14 to rotate, so as to drive the abrasive belt 15 wrapped on the outer sides of the driving wheel 14, the guide wheel 17 and the contact wheel 18 to rotate at a high speed, and material removal, polishing and grinding of a workpiece are realized. The deviation adjusting mechanism ensures the stability of the operation condition of the abrasive belt 15, and if the abrasive belt 15 always deviates to one side, the deviation adjusting mechanism needs to be adjusted to correct the deviation, so that the abrasive belt 15 does not run in the processing process. The tension springs 504 serve to support the weight of the entire grinding head assembly being pulled up. The laser detector 21 in the laser seam tracking system is at the contact wheel 18. The online weld reinforcement height detection is carried out through the laser detector 21 and is output to the controller, and the controller controls the operation of the components such as the air cylinder 501, the tensioning air cylinder 11, the driving motor 13, the servo motor 203, the upright post lifting mechanism 3 and the like through outputting control instructions, so that the automatic grinding of the machining allowance is controlled. The position of the limiting wheel 206 relative to the welding seam of the processed pipeline can be adjusted through the movement of the servo motor 203 and the transmission of the screw rod 204, and the position of the grinding head relative to the welding seam of the workpiece can be ensured during grinding. The floating cutter lifting mechanism 5 increases feed pressure, the contact wheel 18 presses the abrasive belt 15 to contact with a weld joint to polish the weld joint, the grinding head moves on the cross beam along the axial direction of a workpiece, whether the weld joint is bent and deviated from the axis of the workpiece is detected in the grinding process, the carrier roller is started to correct in real time, on-line automatic grinding and polishing of a straight weld joint are realized, when the grinding head finishes grinding and moves to the end of the workpiece, the grinding head automatically lifts a cutter after automatic detection, and therefore complete automatic polishing of the weld joint of the whole section of pipeline is realized. And after the machining is finished, the laser detector 21 detects the welding line again, if the welding line is unqualified, the unqualified position of the workpiece is ground again, if the welding line is qualified, the workpiece is conveyed to the next station, a new workpiece is conveyed to the station, and the process is repeated.
According to the welding seam grinding head equipment disclosed by the embodiment, the grinding amount can be controlled by adjusting the height of the limiting wheel and the feeding pressure of the floating cutter lifting mechanism. The grinding head can move up and down through the floating knife picking mechanism and the connecting rod mechanism, and the degree of automation is high. The abrasive belt on the outer side of the guide wheel performs high-speed rotating motion to polish and grind the workpiece, and the polishing and grinding quality is good, the reliability is high, and the production efficiency is high. Electrified abrasive belt loading and unloading can be realized through the tensioning mechanism, the abrasive belt is convenient to replace, and the operability is good. The stable operation condition of the abrasive belt can be ensured through the deviation adjusting mechanism and the like. The accurate grinding of the weld reinforcement can be ensured through the accurate positioning of the limiting wheel mechanism, the guide wheel to the grinding head assembly and the contact wheel. According to the change of the pipeline production specification, the height of the grinding head and the length of the grinding weld can be continuously adjusted, and the full-automatic grinding operation is carried out by detecting the position, the thickness and the like of the weld through an online laser detector. For parts with longer length, two groups of grinding heads can be adopted to grind the welding line in the same direction at the same time, so that the labor intensity is low and the production efficiency is high. Adopt laser welding seam tracking system to detect the welding seam surplus height after the grinding is accomplished, after the welding seam reaches the technological requirement, carry the work piece to next station through V type gyro wheel, this equipment production efficiency is high, degree of automation is high, the welding seam is polished effectually, and the welding seam is of high quality after polishing, and does not harm the tubular product body.
Example 2:
the embodiment provides a basic implementation manner, and provides a welding seam grinding head device, which is shown in fig. 1 to 4 and comprises a host machine body 1, a transverse moving guide rail 2, an upright lifting mechanism 3, a driving feeding system, a tensioning mechanism, a processing grinding and polishing system, a positioning and limiting system and a laser welding seam tracking system.
The transverse moving guide rail 2 is transversely arranged on the main machine body 1. The traverse guide 2 is provided with a slide mechanism which can move along the traverse guide 2.
The upright post lifting mechanism 3 is fixedly connected to the upper slide wire mechanism of the transverse moving guide rail 2. The upright post lifting mechanism 3 is driven by the slide wire mechanism to move along the transverse moving guide rail 2.
The drive feed system comprises a connecting plate I4, a floating cutter lifting mechanism 5, a link mechanism and a vertical supporting column 9.
The connecting plate I4 is vertically arranged on the upright post lifting mechanism 3. When the upright post lifting mechanism 3 is lifted, the connecting plate I4 can be driven to do lifting movement.
The link mechanism comprises a link I6, a link II7, a link III8, a link support seat I23 and a link support seat II 27.
The connecting rod supporting seat I23 is fixedly connected to the lower end of the connecting plate I4. The connecting rod I6 is hinged on the connecting rod supporting seat I23 through a hinge shaft I601.
And the connecting rod supporting seat II27 is fixedly connected to the lower end of the upright post lifting mechanism 3. The connecting rod III8 is hinged on the connecting rod supporting seat II27 through a hinge shaft II 801. The link III8 is arranged at a distance from the link I6, and the link III8 is located below the link I6. The upper end of the connecting rod II7 is hinged at the end of the connecting rod I6 through a hinge shaft III701, and the upper end of the connecting rod II7 is hinged at the end of the connecting rod III8 through a hinge shaft IV 702.
The lower end of the vertical supporting column 9 is fixed on a connecting rod I6.
Referring to fig. 8, the floating cutter lifting mechanism 5 includes a cylinder 501, a tension spring 504 and a tension spring holder 505.
The tension spring fixing seat 505 is fixedly connected to the upper end of the vertical supporting column 9 through a screw.
The cylinder seat of the cylinder 501 is hinged on the connecting plate I4, and the telescopic end of the cylinder 501 is hinged on the tension spring fixing seat 505 through the cylinder joint 503.
One end of the tension spring 504 is hinged on the connecting plate I4, and the other end is connected on the tension spring fixing seat 505 through the tension spring screw 502.
Referring to fig. 9, the tensioning system includes a tensioning cylinder support 10, a tensioning cylinder 11, and a motor fixing base 12.
The tensioning cylinder support 10 is fixedly connected to a connecting rod I6. The motor fixing seat 12 is hinged to the vertical supporting column 9. The tensioning cylinder 11 is located below the tensioning cylinder support 10. The cylinder seat of the tensioning cylinder 11 is hinged on the tensioning cylinder support 10, and the telescopic end of the tensioning cylinder 11 is hinged on the motor fixing seat 12.
The processing grinding and polishing system comprises a driving motor 13, a driving wheel 14, an abrasive belt 15, a fixed seat 16, a contact wheel 18 and two guide wheels 17.
The driving motor 13 is fixedly connected to the motor fixing seat 12. The driving wheel 14 is fixedly connected to the output end of the driving motor 13.
The fixed seat 16 is fixedly connected with the lower end of the connecting rod II 7. The lower end of the fixed seat 16 is provided with a containing cavity.
Two guide wheels 17 are installed in the accommodating cavity of the fixed seat 16 at intervals. The sanding belt 15 is wound around the drive wheel 14 and the two guide wheels 17, respectively. The contact wheel 18 is mounted in the receiving cavity of the holder 16 between the two guide wheels 17, with a gap between the contact wheel 18 and the sanding belt 15.
The positioning and limiting system comprises a connecting plate II19 and a grinding head limiting wheel mechanism 20.
The connecting plate II19 is fixed on the side wall of the fixed seat 16 through screws.
The grinding head limiting wheel mechanism 20 comprises a limiting column 201, a planetary reducer 202, a servo motor 203, a screw rod 204, a limiting wheel leg 205 and a limiting wheel 206.
The limiting column 201 is of a hollow structure. The planetary reducer 202 is mounted at the upper end of the limiting column 201 through a screw. The servo motor 203 is installed on the planetary reducer 202, and the output end of the servo motor 203 is connected with the input end of the planetary reducer 202. The screw rod 204 is located inside the limiting column 201, and the screw rod 204 is fixedly connected to the output end of the planetary reducer 202. The upper ends of the limiting wheel legs 205 extend into the limiting columns 201 and are in threaded connection with the screw rods 204. The lower ends of the limiting wheel legs 205 penetrate out of the limiting column 201 and are connected with the limiting wheels 206.
Referring to fig. 6, the laser seam tracking system includes a laser detector 21 and a controller. The laser detector 21 is mounted on the holder 16. The controller is respectively connected with the laser detector 21, the air cylinder 501, the tensioning air cylinder 11, the driving motor 13, the servo motor 203 and the upright post lifting mechanism 3 in a communication way.
The tensioning mechanism adjusts the contact between the abrasive belt 15 and the driving wheel 14 under the action of the tensioning cylinder 11, when the abrasive belt 15 needs to be replaced, the air source of the tensioning cylinder 11 is manually controlled to be turned off, so that the tensioning cylinder 11 drives the motor fixing seat 12 and the driving wheel 14 to descend, and the abrasive belt 15 can be replaced; when loading the belt, the direction of the arrow marked on the back of the abrasive belt 15 must be consistent with the correct belt running direction of the abrasive belt 15 during grinding, and after loading the abrasive belt 15, the air source of the tensioning cylinder 11 is manually controlled and connected to enable the tensioning cylinder 11 to ascend to tighten the abrasive belt 15, so that the abrasive belt 15 is tightly jointed with the driving wheel 14 again.
Through the combined action of the cylinder 501 and the tension spring 504 of the floating knife picking mechanism 5, the deviation adjusting support 22, the link mechanism and the grinding head limiting wheel mechanism 20, when the cylinder 501 of the floating knife picking mechanism 5 increases the feeding pressure, the guide wheel 17 descends, the contact wheel 18 abuts against the welding seam of the contact pipeline, and the abrasive belt 15 in the contact area forms a half-moon-shaped enveloping grinding area. After the removal amount of the residual weld of the pipeline reaches a set value, the limiting wheel 206 of the grinding head limiting wheel mechanism 20 starts to abut against the outer wall of the pipeline, and the guide wheel 18 cannot be pressed down continuously, so that the accurate control of the removal of the residual weld is achieved. The size of the weld grinding amount can be controlled by adjusting the height of the limiting wheel 206 in the grinding head limiting wheel mechanism 20 and adjusting the pressure of the rear feeding of the air cylinder 501 of the floating tool picking mechanism 5.
During grinding, the driving motor 13 drives the driving wheel 14 to rotate, so as to drive the abrasive belt 15 wrapped on the outer sides of the driving wheel 14, the guide wheel 17 and the contact wheel 18 to rotate at a high speed, and material removal, polishing and grinding of a workpiece are realized. The tension springs 504 serve to support the weight of the entire grinding head assembly being pulled up. The laser detector 21 in the laser seam tracking system is at the contact wheel 18. The online weld reinforcement height detection is carried out through the laser detector 21 and is output to the controller, and the controller controls the operation of the components such as the air cylinder 501, the tensioning air cylinder 11, the driving motor 13, the servo motor 203, the upright post lifting mechanism 3 and the like through outputting control instructions, so that the automatic grinding of the machining allowance is controlled. The position of the limiting wheel 206 relative to the welding seam of the processed pipeline can be adjusted through the movement of the servo motor 203 and the transmission of the screw rod 204, and the position of the grinding head relative to the welding seam of the workpiece can be ensured during grinding. The floating cutter lifting mechanism 5 increases feed pressure, the contact wheel 18 presses the abrasive belt 15 to contact with a weld joint to polish the weld joint, the grinding head moves on the cross beam along the axial direction of a workpiece, whether the weld joint is bent and deviated from the axis of the workpiece is detected in the grinding process, the carrier roller is started to correct in real time, on-line automatic grinding and polishing of a straight weld joint are realized, when the grinding head finishes grinding and moves to the end of the workpiece, the grinding head automatically lifts a cutter after automatic detection, and therefore complete automatic polishing of the weld joint of the whole section of pipeline is realized. And after the machining is finished, the laser detector 21 detects the welding line again, if the welding line is unqualified, the unqualified position of the workpiece is ground again, if the welding line is qualified, the workpiece is conveyed to the next station, a new workpiece is conveyed to the station, and the process is repeated.
According to the welding seam grinding head equipment disclosed by the embodiment, the grinding amount can be controlled by adjusting the height of the limiting wheel and the feeding pressure of the floating cutter lifting mechanism. The grinding head can move up and down through the floating knife picking mechanism and the connecting rod mechanism, and the degree of automation is high. The abrasive belt on the outer side of the guide wheel performs high-speed rotating motion to polish and grind the workpiece, and the polishing and grinding quality is good, the reliability is high, and the production efficiency is high. Electrified abrasive belt loading and unloading can be realized through the tensioning mechanism, the abrasive belt is convenient to replace, and the operability is good. The accurate grinding of the weld reinforcement can be ensured through the accurate positioning of the limiting wheel mechanism, the guide wheel to the grinding head assembly and the contact wheel. According to the change of the pipeline production specification, the height of the grinding head and the length of the grinding weld can be continuously adjusted, and the full-automatic grinding operation is carried out by detecting the position, the thickness and the like of the weld through an online laser detector. For parts with longer length, two groups of grinding heads can be adopted to grind the welding line in the same direction at the same time, so that the labor intensity is low and the production efficiency is high. Adopt laser welding seam tracking system to detect the welding seam surplus height after the grinding is accomplished, after the welding seam reaches the technological requirement, carry the work piece to next station through V type gyro wheel, this equipment production efficiency is high, degree of automation is high, the welding seam is polished effectually, and the welding seam is of high quality after polishing, and does not harm the tubular product body.
Example 3:
the main structure of this embodiment is the same as that of embodiment 2, and further includes an offset correction system. Referring to fig. 7, the offset-correcting system includes an offset support 22, a lock nut 29, an offset bolt 30, a coupling plate center pin 31, a coupling plate lower fixing bolt 32, and a coupling plate upper fixing bolt 33.
The deviation-adjusting support 22 is fixedly connected to the upright lifting mechanism 3. The offset bolt 30 is screwed into the offset support 22 and contacts the attachment plate I4. The locking nut 29 is sleeved on the offset bolt 30 and is positioned between the offset support 22 and the nut of the offset bolt 30.
The connecting plate lower fixing bolt 32 and the connecting plate upper fixing bolt 33 are installed on the connecting plate I4 at intervals, and the connecting plate lower fixing bolt 32 and the connecting plate upper fixing bolt 33 are screwed on the upright lifting mechanism 3. Wherein the coupling plate lower fixing bolt 32 is located below the coupling plate upper fixing bolt 33. The central pin 31 of the connecting plate penetrates through the middle part of the connecting plate I4 and is fixed on the upright post lifting mechanism 3. The coupling plate center pin 31 is located between the coupling plate lower fixing bolt 32 and the coupling plate upper fixing bolt 33.
When grinding head deviation adjustment is carried out, the deviation adjustment bolt 30 rotates and abuts against the connecting plate I4, after the deviation adjustment bolt 30 rotates and feeds, the connecting plate I4 is forced to rotate around the axis of the connecting plate I central pin shaft 31, when the connecting plate I4 is forced to rotate, other grinding head components connected to the connecting plate I4 are driven to rotate around the axis of the connecting plate I central pin shaft 31, when the axis of the contact wheel 18 is parallel to the horizontal ground, the rotation and feeding of the deviation adjustment bolt 30 are stopped, and deviation adjustment is finished. After the offset adjustment is finished, the position of the connecting plate I4 is fixed, at this time, the offset adjusting bolt 30 needs to be locked by the locking nut 29, and the connecting plate lower fixing bolt 32 and the connecting plate upper fixing bolt 33 are screwed and abutted into the upright lifting mechanism 3. In order to prevent the bolt loosening after the offset occurs during the later-stage production and processing of the welding seam and ensure that the position of the connecting plate I4 is not changed, the connecting rod supporting seat II27 is directly welded on the upright lifting mechanism 3, and the welding point 28 is shown in fig. 7.
Example 4:
the main structure of the embodiment is the same as that of embodiment 2, and further, the grinding head protective cover 24 is further included, and the grinding head protective cover 24 covers the driving feeding system, the tensioning mechanism, the processing grinding and polishing system and the positioning limiting system to cover the whole grinding head.
Example 5:
the main structure of this embodiment is the same as embodiment 4, and further includes a dust suction duct 25 and a dust collector 26.
The cleaner 26 is mounted on the main body 1. The dust suction pipe 25 is connected with a dust collector 26, the other end of the dust suction pipe is connected with the upper end of the grinding head protective cover 24 and communicated with the inside of the grinding head protective cover 24, so that dust generated by grinding is sucked away by the dust collector 26 through the dust suction pipe 25.
Example 6:
the main structure of this embodiment is the same as that of embodiment 2, further, a limiting wheel mounting groove 2051 is processed at the lower end of the limiting wheel leg 205, and the limiting wheel 206 is rotatably connected to the limiting wheel mounting groove 2051 at the lower end of the limiting wheel leg 205.

Claims (5)

1. The utility model provides a welding seam bistrique equipment of polishing which characterized in that: the machine comprises a main machine body (1), a transverse moving guide rail (2), an upright post lifting mechanism (3), a driving and feeding system, a tensioning mechanism, a processing grinding and polishing system, a positioning and limiting system and a laser welding seam tracking system;
the transverse moving guide rail (2) is transversely arranged on the main machine body (1);
the upright post lifting mechanism (3) is connected to the transverse moving guide rail (2) in a sliding manner;
the driving and feeding system comprises a connecting plate I (4), a floating cutter lifting mechanism (5), a connecting rod mechanism and a vertical supporting column (9);
the connecting plate I (4) is vertically arranged on the upright post lifting mechanism (3); when the upright post lifting mechanism (3) is lifted, the connecting plate I (4) is driven to do lifting motion;
the connecting rod mechanism comprises a connecting rod I (6), a connecting rod II (7), a connecting rod III (8), a connecting rod supporting seat I (23) and a connecting rod supporting seat II (27);
the connecting rod supporting seat I (23) is fixedly connected to the lower end of the connecting plate I (4); the connecting rod I (6) is hinged on the connecting rod supporting seat I (23);
the connecting rod supporting seat II (27) is fixedly connected to the lower end of the upright post lifting mechanism (3); and the connecting rod III (8) is hinged on the connecting rod supporting seat II (27). The connecting rods III (8) and the connecting rods I (6) are arranged at intervals, and the connecting rods III (8) are positioned below the connecting rods I (6); the upper end of the connecting rod II (7) is hinged to the end part of the connecting rod I (6), and the upper end of the connecting rod II (7) is hinged to the end part of the connecting rod III (8);
the lower end of the vertical supporting column (9) is fixed on the connecting rod I (6);
the floating cutter lifting mechanism (5) comprises a cylinder (501), a tension spring (504) and a tension spring fixing seat (505);
the tension spring fixing seat (505) is arranged at the upper end of the vertical supporting column (9);
the cylinder seat of the cylinder (501) is hinged on the connecting plate I (4), and the telescopic end of the cylinder (501) is hinged on the tension spring fixing seat (505);
one end of the tension spring (504) is hinged to the connecting plate I (4), and the other end of the tension spring is connected to the tension spring fixing seat (505);
the tensioning system comprises a tensioning cylinder support (10), a tensioning cylinder (11) and a motor fixing seat (12);
the tensioning cylinder support (10) is fixedly connected to the connecting rod I (6); the motor fixing seat (12) is hinged to the vertical supporting column (9); the tensioning cylinder (11) is positioned below the tensioning cylinder support (10); the cylinder seat of the tensioning cylinder (11) is hinged on the tensioning cylinder support (10), and the telescopic end of the tensioning cylinder (11) is hinged on the motor fixing seat (12);
the processing grinding and polishing system comprises a driving motor (13), a driving wheel (14), an abrasive belt (15), a fixed seat (16), two guide wheels (17) and a contact wheel (18);
the driving motor (13) is fixedly connected to the motor fixing seat (12); the driving wheel (14) is fixedly connected to the output end of the driving motor (13);
the fixed seat (16) is fixedly connected with the lower end of the connecting rod II (7); the lower end of the fixed seat (16) is provided with an accommodating cavity;
the two guide wheels (17) are arranged in the accommodating cavity of the fixed seat (16) at intervals; the abrasive belt (15) is respectively wound on the driving wheel (14) and the two guide wheels (17); the contact wheel (18) is arranged in the accommodating cavity of the fixed seat (16) and is positioned between the two guide wheels (17), and a gap is formed between the contact wheel (18) and the abrasive belt (15);
the positioning limiting system comprises a connecting plate II (19) and a grinding head limiting wheel mechanism (20);
the connecting plate II (19) is fixedly connected to the side wall of the fixed seat (16);
the grinding head limiting wheel mechanism (20) comprises a limiting column (201), a planetary speed reducer (202), a servo motor (203), a screw rod (204), a limiting wheel leg (205) and a limiting wheel (206);
the limiting column (201) is of a hollow structure; the planetary reducer (202) is arranged at the upper end of the limiting column (201); the servo motor (203) is arranged on the planetary speed reducer (202), and the output end of the servo motor (203) is connected with the input end of the planetary speed reducer (202); the screw rod (204) is positioned inside the limiting column (201), and the screw rod (204) is fixedly connected to the output end of the planetary speed reducer (202); the upper ends of the limiting wheel legs (205) extend into the limiting columns (201) and are connected with the screw rod (204) through threads; the lower ends of the limiting wheel legs (205) penetrate out of the limiting column (201) and are connected with the limiting wheels (206);
the laser weld tracking system comprises a laser detector (21) and a controller; the laser detector (21) is arranged on the fixed seat (16); the controller is respectively in communication connection with the laser detector (21), the air cylinder (501), the tensioning air cylinder (11), the driving motor (13), the servo motor (203) and the upright post lifting mechanism (3).
2. The weld grinding head apparatus according to claim 1, wherein: the device also comprises an offset correction system; the deviation-adjusting and correcting system comprises a deviation-adjusting support (22), a locking nut (29), a deviation-adjusting bolt (30), a connecting plate center pin shaft (31), a connecting plate lower part fixing bolt (32) and a connecting plate upper part fixing bolt (33);
the deviation adjusting support (22) is fixedly connected to the upright post lifting mechanism (3); the deviation adjusting bolt (30) is screwed into the deviation adjusting support (22) and is in contact with the connecting plate I (4); the locking nut (29) is sleeved on the deviation adjusting bolt (30) and is positioned between the deviation adjusting support (22) and the nut of the deviation adjusting bolt (30);
the lower connecting plate fixing bolts (32) and the upper connecting plate fixing bolts (33) are arranged on the connecting plate I (4) at intervals, and the lower connecting plate fixing bolts (32) and the upper connecting plate fixing bolts (33) are screwed in the upright post lifting mechanism (3); wherein, the lower fixing bolt (32) of the connecting plate is positioned below the upper fixing bolt (33) of the connecting plate; the central pin shaft (31) of the connecting plate penetrates through the middle part of the connecting plate I (4) and is fixed on the upright post lifting mechanism (3); and the central pin shaft (31) of the connecting plate is positioned between a fixing bolt (32) at the lower part of the connecting plate and a fixing bolt (33) at the upper part of the connecting plate.
3. The weld grinding head apparatus of claim 3, wherein: also includes a grinding head shield (24); the grinding head protective cover (24) is covered on the driving feeding system, the tensioning mechanism, the processing grinding and polishing system and the positioning and limiting system.
4. The weld grinding head apparatus of claim 3, wherein: also comprises a dust suction pipeline (25) and a dust collector (26);
the dust collector (26) is arranged on the main machine body (1); the dust absorption pipeline (25) is connected with a dust collector (26), and the other end of the dust absorption pipeline is connected with the upper end of the grinding head protective cover (24) and communicated with the inside of the grinding head protective cover (24).
5. The weld grinding head apparatus according to claim 1, wherein: the lower end of the limiting wheel leg (205) is provided with a limiting wheel mounting groove (2051), and the limiting wheel (206) is rotatably connected in the limiting wheel mounting groove (2051) at the lower end of the limiting wheel leg (205).
CN202110123993.1A 2021-01-29 2021-01-29 Grinding head equipment for grinding welding line Active CN113001344B (en)

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CN114769840A (en) * 2022-03-23 2022-07-22 重庆大学 Double-laser abrasive belt cooperative processing equipment

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