CN112496905A - Method for preprocessing machined surface of color steel plate of steel structure factory building - Google Patents
Method for preprocessing machined surface of color steel plate of steel structure factory building Download PDFInfo
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- CN112496905A CN112496905A CN202011357626.XA CN202011357626A CN112496905A CN 112496905 A CN112496905 A CN 112496905A CN 202011357626 A CN202011357626 A CN 202011357626A CN 112496905 A CN112496905 A CN 112496905A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 143
- 239000010959 steel Substances 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims description 27
- 238000007781 pre-processing Methods 0.000 title claims description 13
- 238000005498 polishing Methods 0.000 claims abstract description 68
- 238000002955 isolation Methods 0.000 claims description 15
- 238000003754 machining Methods 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 3
- 206010066054 Dysmorphism Diseases 0.000 claims 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 239000013013 elastic material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Classifications
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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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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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
- B24B41/02—Frames; Beds; Carriages
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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
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/08—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing combined with fluid systems
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a steel structure factory building color steel plate processing surface pretreatment method which comprises a workbench, a clamping device, a polishing device and a moving device, wherein the clamping device is installed at the front end of the top of the workbench, the polishing device is installed at the top of the clamping device, and the moving device is arranged at the top of the workbench and positioned at the rear end of the clamping device.
Description
Technical Field
The invention relates to the technical field of surface treatment of color steel plates of steel structure plants, in particular to a method for pretreating the processing surfaces of the color steel plates of the steel structure plants.
Background
The color steel plate is a color coated steel plate, the color coated steel plate is a steel plate with an organic coating, has the characteristics of good corrosion resistance, bright color, attractive appearance, convenient processing and forming, the original strength of the steel plate and the like, and low cost, and the like.
And the steel structure factory building color steel plate of the existing market carries on the following problem in the course of processing again: a. traditional steel constructs the various steel sheet of factory building and carries out the in-process of polishing again, because the restriction of the various steel sheet structure of steel constructs the factory building, machinery can only polish to the various steel sheet of steel structure factory building of a shape to make the suitability of machinery reduce. b. Traditional steel constructs the various steel sheet of factory building and carries out the in-process of polishing again, because the restriction of the various steel sheet structure of steel structure factory building, the various steel sheet of steel structure factory building that machinery can only process the same length to make the practicality of machinery reduce.
Disclosure of Invention
In order to solve the problems, the invention provides a method for preprocessing the processing surface of a color steel plate of a steel structure factory building, which can solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: the method for preprocessing the processing surface of the color steel plate of the steel structure factory building specifically comprises the following steps:
s1, adjusting: firstly, adjusting a clamping device according to the length of a steel structure factory building color steel plate to be polished, and then adjusting a polishing device according to the shape of the steel structure factory building color steel plate to be polished;
s2, fixing: after the step S1 is completed, after the clamping device and the polishing device are adjusted, the clamping device is used for clamping and fixing the color steel plate of the steel structure factory building to be polished;
s3, grinding: after the step S2 is completed, after the clamping device clamps the color steel plate of the steel building to be polished, the polishing device is pushed by the arranged moving device to polish the color steel plate of the steel building;
the method for preprocessing the machining surface of the color steel plate of the steel structure factory building, which is adopted in the steps S1-S3, further particularly relates to equipment for preprocessing the machining surface of the color steel plate of the steel structure factory building, which comprises a workbench, a clamping device, a polishing device and a moving device, wherein the clamping device is installed at the front end of the top of the workbench, the polishing device is installed at the top of the clamping device, and the moving device is arranged at the top of the workbench and positioned at the rear end of the clamping device;
the clamping device comprises vertical fixing frames, Contraband-shaped plates, electric cylinders, vertical plates, limiting rods, guide rods, sliding plates, clamping frames, swinging rods and a driving motor, wherein the vertical fixing frames are symmetrically and fixedly arranged on the left side and the right side of the front end of the top of the workbench, moving grooves are formed in opposite surfaces of the lower ends of two groups of the vertical fixing frames, Contraband-shaped plates with upward openings are arranged in the moving grooves, the electric cylinders are fixedly arranged on the top of the workbench, the moving ends of the electric cylinders are fixedly connected with the middle parts of horizontal sections of the Contraband-shaped plates, the vertical plates are symmetrically and fixedly arranged on the left side and the right side of the horizontal sections of the Contraband-shaped plates, the limiting rods are symmetrically erected on the front side and the rear side of the two groups of the vertical plates, the guide rods are arranged in the middle parts of the two groups of the limiting rods, the sliding, the bottom of each sliding plate is connected with the corresponding oscillating rod through a pin shaft, every two groups of oscillating rods are hinged, two ends of each guide rod are in a bidirectional thread shape, the sliding plates at the two ends are in threaded connection with the guide rods, the middle parts of the guide rods are connected with the sliding plates in the middle parts through bearings, the rest sliding plates are connected with the guide rods and the limiting rods in a sliding fit mode, the right ends of the guide rods are fixedly connected with a driving motor, and the driving motor is installed on a vertical plate;
the clamping frame comprises lug seats, supporting plates, fixing plates, clamping plates, fixing blocks and a moving frame, wherein the lug seats are fixedly arranged at the top of the sliding plate, the middle parts of the lug seats are connected with two groups of supporting plates through pin shafts, the fixing plates are fixedly arranged at the upper ends between the two groups of vertical fixing frames, the clamping plates are uniformly sleeved on the fixing plates from left to right, every two clamping plates form one group, the fixing blocks are oppositely and fixedly arranged at the bottoms of the two clamping plates, the tops of the supporting plates are connected with the fixing blocks through pin shafts, and the moving frame is arranged on the opposite surfaces of every two clamping plates;
the polishing device comprises a rectangular long plate, a movable plate, telescopic support plates, a square plate, special-shaped plates, a positioning plate, telescopic plates, an Contraband-shaped frame, an isolation baffle, a first polishing frame and a second polishing frame, wherein the top parts of the two groups of vertical fixing frames are fixedly provided with the rectangular long plate, the bottom part of the rectangular long plate is provided with a sliding groove, the movable plate is arranged in the sliding groove, the bottom part of the movable plate is fixedly provided with the telescopic support plates, the bottom part of the telescopic support plates is provided with the square plate, the bottom part of the square plate is provided with the special-shaped groove from left to right, the special-shaped plates are uniformly arranged in the special-shaped groove from left to right, positioning grooves are formed in the front side and the rear side of the lower end of the special-shaped plate, the positioning plate is arranged in each positioning groove, the telescopic plates are fixedly arranged below the positioning plates, and the bottom parts, an isolation baffle is arranged in the middle of the bottom of the Contraband-shaped frame, a first polishing frame is arranged at the front end of the isolation baffle, and a second polishing frame is arranged at the rear end of the isolation baffle.
As a preferred technical scheme of the invention, the moving device comprises a support, limiting blocks, a push plate, a first rectangular tooth, a first motor, a rotating disc, a cylindrical rod, a swinging plate, a fan-shaped plate and a second rectangular tooth, the support is fixedly arranged at the top of the workbench and positioned at the rear end of the vertical fixing frame, the limiting blocks are symmetrically and fixedly arranged at the front side and the rear side of the upper end of the left side of the support, the push plates are arranged in two groups of limiting blocks, the front end of the push plate is fixedly connected with the moving plate, the first rectangular tooth is arranged at the bottom of the push plate and positioned between the two groups of limiting blocks, the first motor is fixedly arranged at the right end of the middle part of the support, an output shaft of the first motor penetrates through the support and is fixedly connected with the rotating disc, the cylindrical rod is fixedly arranged at the position of the left end of the rotating, the cylindrical rod slides in the first arc-shaped groove, the sector plate is installed at the top of the swinging plate through a pin shaft, the sector plate is evenly provided with second rectangular teeth along the circumferential direction, and the second rectangular teeth and the first rectangular teeth are in meshing transmission.
As a preferred technical scheme, the v-21274is characterized in that the upper ends of two vertical sections of the v-shaped frame are provided with a first circular through hole, the lower ends of the two vertical sections of the v-shaped frame are provided with a second circular through hole, the isolation baffle is provided with a third circular through hole and a fourth circular through hole corresponding to the first circular through hole and the second circular through hole, and the upper side and the lower side of the first circular through hole and the second circular through hole of the v-shaped frame are symmetrically provided with limiting grooves.
As a preferred technical scheme, the first grinding frame comprises a telescopic spring rod, a first grinding block, a positioning rod, a telescopic rod, a circular block and a rotary circular rod, wherein the first grinding block, the positioning rod, the telescopic rod, the circular block and the rotary circular rod are arranged at the front end of the bottom of the v-shaped frame, the first grinding block is arranged at the bottom of the telescopic spring rod and is of a square structure, a fifth circular through hole is formed in the upper end of the first grinding block, the positioning rod is arranged in the fifth circular through hole, the telescopic rod is arranged at the tail end of the positioning rod, the circular block is arranged at the tail end of the telescopic rod, the rotary circular rod is arranged at one end of the circular block in a vertically symmetrical mode, and the rotary circular rod is located in a limiting groove formed in the vertical section.
As a preferred technical scheme of the invention, the first grinding block is provided with a cylindrical roller along the circumferential direction through a pin shaft, and the surface of the cylindrical roller is rough.
As a preferable technical scheme of the invention, the second grinding frame and the first grinding frame have the same structure, and the second grinding block is of a V-shaped structure.
As a preferred technical scheme, the movable frame comprises extension plates, small springs and arc-shaped plates, the extension plates are fixedly mounted on the opposite surfaces of every two clamping plates, the small springs are uniformly mounted at one ends of the extension plates from top to bottom, the arc-shaped plates are fixedly mounted at the tail ends of the small springs, and the arc-shaped plates are made of elastic materials.
The invention has the beneficial effects that:
1. according to the invention, through the matching of the workbench, the clamping device, the polishing device and the moving device, the clamping device is firstly adjusted according to the length of the steel structure factory building color steel plate, so that the clamping device can uniformly clamp the steel structure factory building color steel plates with different lengths, the practicability of the machine is improved, and then the polishing head is adjusted according to the shape of the steel structure factory building color steel plate to be polished, thereby improving the applicability of the machine.
2. According to the invention, through the arranged moving frame, when the supporting plate pushes the clamping plate to open outwards, so that the clamping plate moves outwards, the clamping plate can be clamped and fixed according to different shapes of the color steel plates of the steel structure factory building through the arranged small springs and the arc-shaped plates, thereby improving the mechanical practicability.
3. According to the invention, through the arranged first grinding block and the second grinding block and the cylindrical rollers arranged on the first grinding block and the second grinding block, when the color steel plate of the steel structure factory building is ground, the friction force is increased so as to facilitate grinding, and the surface of the cylindrical roller is rough so as to prolong the grinding service life of the grinding blocks.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic left side view of the present invention;
FIG. 5 is a partial sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 6 is an enlarged view of a portion of the invention at N of FIG. 3;
FIG. 7 is an enlarged view of a portion of the invention at K of FIG. 3;
fig. 8 is a partial enlarged view of the invention at M of fig. 4.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-8, a method for preprocessing the processing surface of a color steel plate of a steel factory building specifically comprises the following steps:
s1, adjusting: firstly, adjusting a clamping device 2 according to the length of a steel structure factory building color steel plate to be polished, and then adjusting a polishing device 3 according to the shape of the steel structure factory building color steel plate to be polished;
s2, fixing: after the step of S1 is completed, after the clamping device 2 and the polishing device 3 are adjusted, the color steel plates of the steel structure factory building to be polished are clamped and fixed through the clamping device 2;
s3, grinding: after the step of S2 is completed, after the clamping device 2 clamps the color steel plate of the steel building to be polished, the polishing device 3 is pushed by the arranged moving device 4 to polish the color steel plate of the steel building;
the method for preprocessing the machining surface of the color steel plate of the steel structure factory building, which is obtained by the steps S1-S3, is adopted, and in the process of preprocessing the machining surface of the color steel plate of the steel structure factory building, the equipment for preprocessing the machining surface of the color steel plate of the steel structure factory building further comprises a workbench 1, a clamping device 2, a polishing device 3 and a moving device 4, wherein the clamping device 2 is installed at the front end of the top of the workbench 1, the polishing device 3 is installed at the top of the clamping device 2, and the moving device 4 is arranged at the top of the workbench 1 and at the rear end of the clamping device 2;
the clamping device 2 comprises vertical fixing frames 21, a lifting 21274, a shape plate 22, electric cylinders 23, vertical plates 24, limiting rods 25, a guide rod 26, a sliding plate 27, a clamping frame 28, a swinging rod 29 and a driving motor 20, wherein the vertical fixing frames 21 are symmetrically and fixedly arranged on the left side and the right side of the front end of the top of the workbench 1, the opposite surfaces of the lower ends of the two groups of vertical fixing frames 21 are provided with moving grooves, Contraband shape plates 22 with upward openings are arranged in the moving grooves, the electric cylinders 23 are fixedly arranged on the top of the workbench 1, the moving ends and the lifting 21274of the electric cylinders 23 are fixedly connected with the middle part of the horizontal section of the shape plate 22, the lifting 21274is symmetrically and fixedly arranged on the left side and the right side of the horizontal section of the shape plate 22, the limiting rods 25 are symmetrically arranged on the front side and the rear side of the two groups of the vertical plates 24, the guide rods 26 are arranged in the middle parts of the two groups of the limiting, the top of the sliding plate 27 is provided with a clamping frame 28, the bottom of the sliding plate 27 is connected with the oscillating rods 29 through pin shafts, every two groups of oscillating rods 29 are hinged, two ends of the guide rod 26 are in a bidirectional thread shape, the sliding plates 27 at the two ends are in threaded connection with the guide rod 26, the middle part of the guide rod 26 is connected with the sliding plate 27 in the middle part through a bearing, the rest sliding plates 27 are connected with the guide rod 26 and the limiting rod 25 in a sliding fit manner, the right end of the guide rod 26 is fixedly connected with the driving motor 20, and the driving motor 20 is installed on the vertical plate 24;
firstly, the distance between the sliding plates 27 is adjusted according to the length of the steel structure factory building color steel plate to be polished, at the moment, the driving motor 20 is started, the driving motor 20 drives the guide rod 26 to rotate, at the moment, the sliding plates 27 slide left and right under the action of the guide rod 26 and the limiting rod 25, so that the guide rod 26 and the limiting rod 25 adjust the distance between the sliding plates 27, the distance between each group of clamping frames 28 is adjusted, and the bottom of the steel structure factory building color steel plate with longer length is conveniently and uniformly clamped and fixed;
the clamping frame 28 comprises an ear seat 281, a supporting plate 282, a fixing plate 283, clamping plates 284, fixing blocks 285 and a moving frame 286, wherein the ear seat 281 is fixedly installed at the top of the sliding plate 27, the middle part of the ear seat 281 is connected with two groups of supporting plates 282 through pin shafts, the fixing plate 283 is fixedly installed at the upper end between the two groups of vertical fixing frames 21, the clamping plates 284 are uniformly sleeved on the fixing plate 283 from left to right, every two clamping plates 284 are in one group, the fixing blocks 285 are fixedly installed at the opposite sides of the bottoms of the two clamping plates 284, the top of the supporting plate 282 is connected with the fixing blocks 285 through pin shafts, and the moving frame 286 is arranged on the opposite sides of every two clamping plates 284;
after the distance between the sliding plates 27 is adjusted, the electric cylinder 23 is started at this time, so that the electric cylinder 23 pushes Contraband the shaped plate 22 to move upwards in the moving slot on the vertical fixing frame 21, at this time, every two supporting plates 282 are opened outwards on the fixing plate 283, so that the supporting plates 282 push the fixing blocks 285 to open outwards, the fixing blocks 285 push the clamping plates 284 to open outwards, and the clamping plates 284 clamp and fix the bottom of the steel structure factory building color steel plate to be polished;
the movable frame 286 comprises extension plates 28a, small springs 28b and arc-shaped plates 28c, the extension plates 28a are fixedly mounted on the opposite surfaces of every two clamping plates 284, the small springs 28b are uniformly mounted at one ends of the extension plates 28a from top to bottom, the arc-shaped plates 28c are fixedly mounted at the tail ends of the small springs 28b, and the arc-shaped plates 28c are made of elastic materials;
when the supporting plate 282 pushes the clamping plate 284 to open outwards, so that the clamping plate 284 moves outwards, the small spring 28b and the arc-shaped plate 28c can clamp and fix the steel structure workshop color steel plates according to different shapes, thereby improving the mechanical practicability.
The polishing device 3 comprises a rectangular long plate 30, a moving plate 31, a telescopic support plate 32, a square plate 33, a special-shaped plate 34, a positioning plate 35, telescopic plates 36, 21274a, a shape frame 37, an isolation baffle 38, a first polishing frame 39 and a second polishing frame 3a, the tops of two groups of vertical fixing frames 21 are fixedly provided with the rectangular long plate 30, the bottom of the rectangular long plate 30 is provided with a sliding groove, the sliding groove is internally provided with the moving plate 31, the bottom of the moving plate 31 is fixedly provided with the telescopic support plate 32, the bottom of the telescopic support plate 32 is provided with the square plate 33, the bottom of the square plate 33 is provided with the special-shaped groove from left to right, the special-shaped plate 34 is uniformly arranged in the special-shaped groove from left to right, the front side and the back side of the lower end of the special-shaped plate 34 are provided with positioning grooves, the positioning plate 35 is arranged in the positioning grooves, and the telescopic plates 36 are, the bottom of the special-shaped plate 34 is provided with an Contraband-shaped frame 37 with a downward opening, the middle position of the bottom of the shaped frame 37 is provided with an isolation baffle plate 38, the front end of the isolation baffle plate 38 is provided with a first grinding frame 39, and the rear end of the isolation baffle plate 38 is provided with a second grinding frame 3 a;
after the clamping device 2 clamps and fixes the color steel plates of the steel building to be polished, the same number of special-shaped plates 34 are installed according to the concave-convex grooves in the length of the color steel plates of the steel building to be polished, after the special-shaped plates 34 are installed, the retractable plate 36 moves upwards at the moment, so that the retractable plate 36 pushes the positioning plate 35 to limit the special-shaped plates 34, the heights of the first polishing frame 39 and the second polishing frame 3a are adjusted according to the shape of the color steel plates of the steel building to be polished, when the heights of the first polishing frame 39 and the second polishing frame 3a exceed the height of the Contraband-shaped frame 37, the retractable support rod moves downwards at the moment, the retractable support rod drives the square plate 33 to move downwards, the square plate 33 drives the special-shaped plates 34 to move downwards, so that the special-shaped plates 34 drive the first polishing frame 39 and the second polishing frame 3a to move downwards, the first polishing frame 39 and the second polishing frame 3a are made to contact with a steel structure factory building color steel plate to be polished, the moving device 4 is started at the moment, the moving device 4 pushes the moving plate 31 to move back and forth in a sliding groove formed in the rectangular long plate 30, and therefore the first polishing frame 39 and the second polishing frame 3a polish the steel structure factory building color steel plate;
the upper ends of the two vertical sections of the V-shaped frame 37 are provided with a first circular through hole 371, the lower ends of the two vertical sections of the V-shaped frame 37 are provided with a second circular through hole 372, the positions of the isolation baffle 38 corresponding to the first circular through hole 371 and the second circular through hole 372 are provided with a third circular through hole 373 and a fourth circular through hole 374, and the upper side and the lower side of the first circular through hole 371 and the second circular through hole 372 of the V-shaped frame 37 are symmetrically provided with limiting grooves 375;
the first polishing frame 39 comprises a telescopic spring rod 391, a first polishing block 392, a positioning rod 393, a telescopic rod 394, a circular block 395 and a rotary circular rod 396, the telescopic spring rod 391 is fixedly installed at the front end of the bottom of the Contraband-shaped frame 37, the first polishing block 392 is installed at the bottom of the telescopic spring rod 391, the first polishing block 392 is of a square structure, a five-number circular through hole is formed in the upper end of the first polishing block 392, the positioning rod 393 is installed in the five-number circular through hole, the telescopic rod 394 is installed at the tail end of the positioning rod 393, the circular block 395 is installed at the tail end of the telescopic rod 394, the rotary circular rod 396 is vertically and symmetrically and fixedly installed at one end of the circular block 395, and the rotary circular rod 396 is located in a limiting groove 375 formed in the vertical;
when the first polishing frame 39 needs to be adjusted for polishing, the positioning rod 393 is inserted into the second circular through hole 372, so that the positioning rod 393 penetrates through the fifth circular through hole and is located in the fourth circular through hole 374, after the positioning rod 393 is limited, the telescopic rod 394 is contracted at the moment, so that the circular block 395 on the telescopic rod 394 is contracted inwards, the rotating circular rod 396 on the circular block 395 is inserted into the limiting groove 375, so that the first polishing frame 39 is limited, and the positioning rod 393 on the second polishing frame 3a limits the second polishing block 39a to the first circular through hole 371 and the third circular through hole 373, so that polishing of the first polishing frame 39 is not influenced;
the first polishing block 392 is provided with a cylindrical roller along the circumferential direction through a pin shaft, and the surface of the cylindrical roller is rough;
through the arranged cylindrical roller, when the color steel plate of the steel structure factory building is polished, the friction force is increased, so that the polishing is convenient, and the surface of the cylindrical roller is rough, so that the polishing service life of the polishing block is prolonged;
the second grinding frame 3a and the first grinding frame 39 are identical in structure, and the second grinding block 39a is of a V-shaped structure;
no. two polishing frame 3a through setting up polishes to the steel structure factory building color steel plate of V-arrangement to make the suitability of machinery improve.
The moving device 4 comprises a support 41, limiting blocks 42, a push plate 43, a first rectangular tooth 44, a first motor 45, a rotating disc 46, a cylindrical rod 47, a swinging plate 48, a fan-shaped plate 49 and a second rectangular tooth 40, the support 41 is fixedly arranged at the top of the workbench 1 and positioned at the rear end of the vertical fixing frame 21, the limiting blocks 42 are symmetrically and fixedly arranged at the front side and the rear side of the upper end of the left side of the support 41, the push plate 43 is arranged in the two groups of limiting blocks 42, the front end of the push plate 43 is fixedly connected with the moving plate 31, the first rectangular tooth 44 is arranged at the bottom of the push plate 43 and positioned between the two groups of limiting blocks 42, the first motor 45 is fixedly arranged at the right end of the middle part of the support 41, an output shaft of the first motor 45 penetrates through the support 41 and is fixedly connected with the rotating disc 46, the cylindrical rod 47 is fixedly arranged at the, a first arc-shaped groove is formed in the oscillating plate 48, the cylindrical rod 47 slides in the first arc-shaped groove, a fan-shaped plate 49 is mounted at the top of the oscillating plate 48 through a pin shaft, second rectangular teeth 40 are uniformly mounted on the fan-shaped plate 49 along the circumferential direction, and the second rectangular teeth 40 and the first rectangular teeth 44 are in meshing transmission;
when the polishing device 3 is pushed to polish the color steel plates of the steel structure factory building, the first motor 45 is started at the moment, the first motor 45 drives the rotating disc 46 to rotate, so that the rotating disc 46 drives the cylindrical rod 47 to rotate, the cylindrical rod 47 slides in the first arc-shaped groove formed in the swinging plate 48 to drive the swinging plate 48 to swing, the swinging plate 48 drives the fan-shaped plate 49 to swing, the fan-shaped plate 49 drives the push plate 43 to swing, and the push plate 43 pushes the moving plate 31 to move back and forth in the sliding groove formed in the rectangular long plate 30;
during the specific work, firstly, the distance between the sliding plates 27 is adjusted according to the length of the steel structure factory building color steel plate to be polished, at this time, the driving motor 20 is started, the driving motor 20 drives the guide rod 26 to rotate, at this time, the sliding plates 27 slide left and right under the action of the guide rod 26 and the limiting rod 25, so that the guide rod 26 and the limiting rod 25 adjust the distance between the sliding plates 27, after the distance between the sliding plates 27 is adjusted, the steel structure factory building color steel plate to be polished is placed on the fixing plate 283, at this time, the electric cylinder 23 is started, so that the clamping plate 284 clamps and fixes the bottom of the steel structure factory building color steel plate to be polished, at this time, the same number of special-shaped plates 34 are installed according to the concave-convex grooves on the length of the steel structure factory building color steel plate to be polished, after the special-shaped plates 34 are installed, the telescopic plate 36 pushes the positioning plate 35 to limit, the heights of the first grinding frame 39 and the second grinding frame 3a are adjusted according to the shape of the color steel plate of the steel structure factory building to be ground, when the first grinding frame 39 needs to be adjusted for grinding, the positioning rod 393 is inserted into the second circular through hole 372, so that the positioning rod 393 penetrates through the fifth circular through hole and is positioned in the fourth circular through hole 374, after the positioning rod 393 is limited, the telescopic rod 394 is contracted inwards, the rotary round rod 396 on the round block 395 is inserted into the limiting groove 375, so that the first grinding frame 39 is limited, the positioning rod 393 on the second grinding frame 3a limits the second grinding block 39a to the first circular through hole 371 and the third circular through hole 373, so that grinding of the first grinding frame 39 cannot be influenced, at the moment, the telescopic support rod moves downwards to drive the first grinding frame 39 and the second grinding frame 3a to move downwards, make a polishing frame 39 and No. two polishing frame 3a contact the various steel sheet of steel structure factory building that will polish, start motor 45 this moment, motor 45 makes push pedal 43 promote the sliding tray back-and-forth movement that the movable plate 31 seted up on rectangle long slab 30 to polish steel structure factory building various steel sheet.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A method for preprocessing the processing surface of a color steel plate of a steel structure factory building is characterized by comprising the following steps: the method for pretreating the processing surface of the color steel plate of the steel structure factory building specifically comprises the following steps:
s1, adjusting: firstly, adjusting a clamping device (2) according to the length of a steel structure factory building color steel plate to be polished, and then adjusting a polishing device (3) according to the shape of the steel structure factory building color steel plate to be polished;
s2, fixing: after the step S1 is completed, after the clamping device (2) and the polishing device (3) are adjusted, the color steel plates of the steel structure factory building which need to be polished are clamped and fixed through the clamping device (2);
s3, grinding: after the step S2 is completed, after the clamping device (2) clamps the color steel plate of the steel building to be polished, the polishing device (3) is pushed by the arranged moving device (4) to polish the color steel plate of the steel building;
the method for preprocessing the machining surface of the color steel plate of the steel structure factory building, which is obtained by the steps S1-S3, further particularly relates to equipment for preprocessing the machining surface of the color steel plate of the steel structure factory building, and comprises a workbench (1), a clamping device (2), a polishing device (3) and a moving device (4), wherein the clamping device (2) is installed at the front end of the top of the workbench (1), the polishing device (3) is installed at the top of the clamping device (2), and the moving device (4) is arranged at the top of the workbench (1) and at the rear end of the clamping device (2);
the clamping device (2) comprises a vertical fixing frame (21), Contraband-shaped plates (22), electric cylinders (23), vertical plates (24), limiting rods (25), guide rods (26), sliding plates (27), a clamping frame (28), swinging rods (29) and a driving motor (20), wherein the vertical fixing frame (21) is symmetrically and fixedly arranged on the left side and the right side of the front end of the top of the workbench (1), two groups of vertical fixing frames (21) are provided with moving grooves on opposite surfaces of the lower ends, Contraband-shaped plates (22) with upward openings are arranged in the moving grooves, the electric cylinders (23) are fixedly arranged on the top of the workbench (1), the moving ends of the electric cylinders (23) are fixedly connected with the middle of the horizontal section of the Contraband-shaped plates (22), the vertical plates (24) are symmetrically and fixedly arranged on the left side and the right side of the horizontal section of the Contraband-shaped plates (22), the limiting rods (25) are symmetrically arranged on the front side, the middle parts of the two groups of limiting rods (25) are provided with guide rods (26), sliding plates (27) are uniformly sleeved outside the limiting rods (25) and the guide rods (26) from left to right, the top of the sliding plate (27) is provided with a clamping frame (28), the bottom of the sliding plate (27) is connected with swinging rods (29) through pin shafts, every two groups of swinging rods (29) are hinged, two ends of the guide rod (26) are in a bidirectional thread shape, sliding plates (27) at two ends are in threaded connection with a guide rod (26), the middle part of the guide rod (26) is connected with the sliding plate (27) positioned in the middle part through a bearing, and the rest sliding plates (27) are connected with the guide rod (26) and the limiting rod (25) in a sliding fit manner, the right end of the guide rod (26) is fixedly connected with a driving motor (20), and the driving motor (20) is arranged on the vertical plate (24);
the clamping frame (28) comprises ear seats (281), supporting plates (282), fixing plates (283), clamping plates (284), fixing blocks (285) and a moving frame (286), the ear seats (281) are fixedly installed at the tops of the sliding plates (27), the middle parts of the ear seats (281) are connected with two groups of supporting plates (282) through pin shafts, the fixing plates (283) are fixedly installed at the upper ends between the two groups of vertical fixing frames (21), the clamping plates (284) are uniformly sleeved on the fixing plates (283) from left to right, every two clamping plates (284) are in one group, the fixing blocks (285) are oppositely and fixedly installed at the bottoms of the two clamping plates (284), the tops of the supporting plates (282) are connected with the fixing blocks (285) through pin shafts, and the moving frame (286) is arranged on the opposite surfaces of every two clamping plates (284);
the polishing device (3) comprises a rectangular long plate (30), a moving plate (31), telescopic bracket plates (32), a square plate (33), a special-shaped plate (34), a positioning plate (35), a telescopic plate (36), a v-21274, a shaped frame (37), an isolation baffle (38), a first polishing frame (39) and a second polishing frame (3a), wherein the rectangular long plate (30) is fixedly arranged at the top of the two groups of vertical fixing frames (21), a sliding groove is formed in the bottom of the rectangular long plate (30), the moving plate (31) is arranged in the sliding groove, the telescopic bracket plates (32) are fixedly arranged at the bottom of the moving plate (31), the square plate (33) is arranged at the bottom of the telescopic bracket plates (32), the special-shaped groove is formed in the bottom of the square plate (33) from left to right, the special-shaped plates (34) are uniformly arranged in the special-shaped groove from left to right, the lower extreme of dysmorphism board (34) around both sides seted up the constant head tank, be provided with locating plate (35) in the constant head tank, the below fixed mounting that just is located locating plate (35) in the constant head tank has expansion plate (36), the bottom of dysmorphism board (34) install Contraband shape frame (37) that open side down, the bottom intermediate position of Contraband shape frame (37) install isolation barrier (38), the front end of isolation barrier (38) is provided with one and polishes frame (39), the rear end of isolation barrier (38) is provided with No. two and polishes frame (3 a).
2. The method for pretreating the machined surface of the color steel plate of the steel structure factory building according to claim 1, wherein the method comprises the following steps: the moving device (4) comprises a support (41), limiting blocks (42), a push plate (43), a first rectangular tooth (44), a first motor (45), a rotating disc (46), a cylindrical rod (47), a swinging plate (48), a sector plate (49) and a second rectangular tooth (40), wherein the support (41) is fixedly installed at the top of the workbench (1) and positioned at the rear end of the vertical fixing frame (21), the limiting blocks (42) are symmetrically and fixedly installed at the front side and the rear side of the upper end of the left side of the support (41), the push plate (43) is installed in the two groups of limiting blocks (42), the front end of the push plate (43) is fixedly connected with the moving plate (31), the first rectangular tooth (44) is installed at the bottom of the push plate (43) and positioned between the two groups of limiting blocks (42), the first motor (45) is fixedly installed at the right end of the middle of the support (41), and the output shaft of the first motor (45) penetrates through the support (41, the left end of rotating disc (46) is kept away from centre of a circle department fixed mounting and is had cylinder pole (47), is provided with swing board (48) outside cylinder pole (47), has seted up an arc recess on swing board (48), and cylinder pole (47) slide in an arc recess, the top of swing board (48) install sector plate (49) through the round pin axle, sector plate (49) evenly install No. two rectangle teeth (40) along circumference, No. two rectangle teeth (40) and a rectangle tooth (44) meshing transmission.
3. The method for pretreating the machined surface of the color steel plate of the steel structure factory building according to claim 1, wherein the method comprises the following steps: contraband two vertical section upper ends of frame (37) have seted up circular through-hole (371) No. one, Contraband two vertical section lower extremes of frame (37) have seted up circular through-hole (372) No. two, and isolation baffle (38) have seted up circular through-hole (373) No. three and circular through-hole (374) No. four for the position of circular through-hole (371) and circular through-hole (372) No. two, Contraband two vertical sections of frame (37) and be located the upper and lower bilateral symmetry of circular through-hole (371) and circular through-hole (372) No. one seted up spacing groove (375).
4. The method for pretreating the machined surface of the color steel plate of the steel structure factory building according to claim 1, wherein the method comprises the following steps: polishing frame (39) include telescopic spring pole (391), polishing block (392), locating lever (393), telescopic link (394), circular block (395) and rotation round bar (396), Contraband shape frame (37) bottom front end fixed mounting has telescopic spring pole (391), polishing block (392) is installed to the bottom of telescopic spring pole (391), polishing block (392) is for square structure, No. five circular through-holes have been seted up to polishing block (392) upper end, install locating lever (393) in the No. five circular through-holes, telescopic link (394) are installed to the end of locating lever (393), circular block (395) are installed to telescopic link (394) end, the one end longitudinal symmetry fixed mounting of circular block (395) has rotation round bar (396), rotation round bar (396) are located spacing groove (375) that Contraband shape frame (37) vertical section was seted up.
5. The method for pretreating the machined surface of the color steel plate of the steel structure factory building according to claim 4, wherein the method comprises the following steps: the first polishing block (392) is provided with a cylindrical roller through a pin shaft along the circumferential direction, and the surface of the cylindrical roller is rough.
6. The method for pretreating the machined surface of the color steel plate of the steel structure factory building according to claim 1, wherein the method comprises the following steps: the second grinding frame (3a) and the first grinding frame (39) are identical in structure, and the second grinding block (39a) is of a V-shaped structure.
7. The method for pretreating the machined surface of the color steel plate of the steel structure factory building according to claim 1, wherein the method comprises the following steps: remove frame (286) including stretching out board (28a), little spring (28b) and arc (28c), the back of the body fixed mounting of per two clamp plates (284) has stretching out board (28a), the one end of stretching out board (28a) from top to bottom evenly install little spring (28b), the terminal fixed mounting of little spring (28b) have arc (28c), the material of arc (28c) be elasticity.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059443A (en) * | 2021-04-22 | 2021-07-02 | 王维祥 | Power wire and cable clamp chuck machining machine and machining method |
| CN113231237A (en) * | 2021-05-29 | 2021-08-10 | 陈鑫 | Cabinet hardware handle forming, manufacturing and processing machine |
| CN113458928A (en) * | 2021-07-22 | 2021-10-01 | 孙新灵 | Surface plastic-coated pretreatment method for manufacturing plastic-coated steel pipe |
| CN113500480A (en) * | 2021-07-22 | 2021-10-15 | 孟磊磊 | Surface finish machining machine and finish machining method for fin evaporation tube of refrigeration equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815653A (en) * | 1981-07-14 | 1983-01-29 | Hitachi Zosen Corp | Surface grinder |
| ES2246317T3 (en) * | 2000-03-15 | 2006-02-16 | Luigi Pedrini | POLISHING MACHINE FOR STONE MATERIALS, EQUIPPED WITH MULTIPLE RECTIFIING HEADS ALIGNED ON TWO SWING ARMS AND PARALLELS WITH VARIABLE DECALAGE. |
| CN107584386A (en) * | 2017-10-16 | 2018-01-16 | 王彩英 | Outer fire cover processing unit (plant) in a kind of household electrical appliance gas-cooker |
| CN108673266A (en) * | 2018-08-14 | 2018-10-19 | 太湖县亚红汽车销售有限公司 | A kind of steel ring grinding device adjusting different buffed surfaces |
| CN210307104U (en) * | 2019-06-28 | 2020-04-14 | 钟祥鼎茂科技有限公司 | Edge grinding device for color steel plate |
| CN211539766U (en) * | 2019-12-31 | 2020-09-22 | 江苏维辰益科技有限公司 | Energy-concerving and environment-protective type various steel sheet apparatus for producing |
| CN111922725A (en) * | 2020-07-28 | 2020-11-13 | 辽宁鑫硕智能机械有限公司 | Color steel plate cutting and grinding integrated machine |
| CN211940555U (en) * | 2019-12-31 | 2020-11-17 | 徐州市三华钢结构工程有限公司 | Positioning fixture for color steel plate machining |
-
2020
- 2020-11-27 CN CN202011357626.XA patent/CN112496905B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815653A (en) * | 1981-07-14 | 1983-01-29 | Hitachi Zosen Corp | Surface grinder |
| ES2246317T3 (en) * | 2000-03-15 | 2006-02-16 | Luigi Pedrini | POLISHING MACHINE FOR STONE MATERIALS, EQUIPPED WITH MULTIPLE RECTIFIING HEADS ALIGNED ON TWO SWING ARMS AND PARALLELS WITH VARIABLE DECALAGE. |
| CN107584386A (en) * | 2017-10-16 | 2018-01-16 | 王彩英 | Outer fire cover processing unit (plant) in a kind of household electrical appliance gas-cooker |
| CN108673266A (en) * | 2018-08-14 | 2018-10-19 | 太湖县亚红汽车销售有限公司 | A kind of steel ring grinding device adjusting different buffed surfaces |
| CN210307104U (en) * | 2019-06-28 | 2020-04-14 | 钟祥鼎茂科技有限公司 | Edge grinding device for color steel plate |
| CN211539766U (en) * | 2019-12-31 | 2020-09-22 | 江苏维辰益科技有限公司 | Energy-concerving and environment-protective type various steel sheet apparatus for producing |
| CN211940555U (en) * | 2019-12-31 | 2020-11-17 | 徐州市三华钢结构工程有限公司 | Positioning fixture for color steel plate machining |
| CN111922725A (en) * | 2020-07-28 | 2020-11-13 | 辽宁鑫硕智能机械有限公司 | Color steel plate cutting and grinding integrated machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059443A (en) * | 2021-04-22 | 2021-07-02 | 王维祥 | Power wire and cable clamp chuck machining machine and machining method |
| CN113059443B (en) * | 2021-04-22 | 2022-11-22 | 国网甘肃省电力公司酒泉供电公司 | Power wire and cable clamp chuck machining machine and machining method |
| CN113231237A (en) * | 2021-05-29 | 2021-08-10 | 陈鑫 | Cabinet hardware handle forming, manufacturing and processing machine |
| CN113458928A (en) * | 2021-07-22 | 2021-10-01 | 孙新灵 | Surface plastic-coated pretreatment method for manufacturing plastic-coated steel pipe |
| CN113500480A (en) * | 2021-07-22 | 2021-10-15 | 孟磊磊 | Surface finish machining machine and finish machining method for fin evaporation tube of refrigeration equipment |
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Effective date of registration: 20221111 Address after: South Head of MasterCard Road, Private Economic Park, Xingfu Town, Boxing County, Binzhou City, Shandong Province, 256500 Applicant after: Shandong Rio Tinto New Materials Co.,Ltd. Address before: Yingying building, 99 Tuanjie Road, yanchuangyuan, Jiangbei new district, Nanjing, Jiangsu Province, 211500 Applicant before: Nanjing Yuri Technology Co.,Ltd. |
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Denomination of invention: A Surface Pretreatment Method for Color Steel Plate Processing in Steel Structure Factory Buildings Granted publication date: 20221206 Pledgee: Boxing County sub branch of Postal Savings Bank of China Ltd. Pledgor: Shandong Rio Tinto New Materials Co.,Ltd. Registration number: Y2024980005277 |