CN114851011A

CN114851011A - Polisher and grinding tool automatic compensation method

Info

Publication number: CN114851011A
Application number: CN202210622219.XA
Authority: CN
Inventors: 徐金鑫; 刘刚; 腾万雨; 黄永哲; 宋鹏赛; 王裕宁; 张洪彦; 李兵; 吴帅; 赵银霞; 闫付钊; 高虎
Original assignee: Jinhuan Steel Structure Engineering Co ltd
Current assignee: Jinhuan Steel Structure Engineering Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-08-05
Anticipated expiration: 2042-06-02
Also published as: CN114851011B

Abstract

The invention relates to equipment for polishing a steel plate, in particular to a polishing machine, which comprises a polishing rack, a polishing head and a polishing head, wherein the polishing rack is used as an installation carrier; the conveying mechanism is arranged on the polishing rack; the pressing mechanism is arranged on the polishing rack and is positioned on the conveyor; the polishing mechanism is arranged on the polishing rack, is positioned right above the conveying mechanism or right below the pressing mechanism and is used for polishing the steel plate on the conveying mechanism; through holes for the grinding mechanism to pass through can be reserved on the conveying mechanism or/and the pressing mechanism. The steel plate is compressed tightly onto the conveying mechanism by the aid of the compressing mechanism, the grinding mechanism is supported to the surface of the steel plate by the aid of the lifting mechanism, residual slag, burrs and original oxide skins on the surface of the blanking part are ground by the aid of the grinding mechanism in the process that the steel plate moves on the conveying mechanism, and the whole process is completely automatic, so that grinding efficiency of the surface of the steel plate is improved, and labor intensity of workers is reduced.

Description

Polisher and grinding tool automatic compensation method

Technical Field

The invention relates to equipment for polishing a steel plate, in particular to a polishing machine.

Background

The blanking of flame, plasma cutting steel sheet commonly used in the steel construction trade at present causes to remain slag, burr and the original cinder in unloading part surface on steel sheet unloading part surface, and the manual work is got rid of the slag, the burr that remain of unloading part surface through using the emery wheel grinding tool, and the dust granule that the manual work quality of polishing is poor, inefficiency, intensity of labour height and the in-process of polishing produced is big to the human body injury, has endangered staff's healthy.

Disclosure of Invention

In order to improve the polishing efficiency of the slag and the burr remained on the surface of the steel plate and the original oxide skin on the surface of the blanking part and reduce the labor intensity of workers, the invention provides the polishing machine, which utilizes a pressing mechanism to press the steel plate onto a conveying mechanism, utilizes a lifting mechanism to support the polishing mechanism on the surface of the steel plate, and utilizes the polishing mechanism to polish the slag and the burr remained on the surface of the steel plate and the original oxide skin on the surface of the blanking part in the process of moving the steel plate on the conveying mechanism, the whole process is completely automatic, the polishing efficiency on the surface of the steel plate is improved, and the labor intensity of the workers is reduced.

The invention provides a grinding machine, which adopts the following technical scheme:

a sander comprises

A grinding machine frame as an installation carrier;

the conveying mechanism is arranged on the polishing rack and used for conveying the steel plate;

the pressing mechanism is arranged on the polishing rack, is positioned right above the conveying mechanism and is used for pressing the steel plate on the conveying mechanism so as to enable the steel plate to move on the conveying mechanism; and

the polishing mechanism is arranged on the polishing rack, is positioned right above the conveying mechanism or right below the pressing mechanism and is used for polishing the steel plate on the conveying mechanism;

wherein, a through hole for the grinding mechanism to pass through can be reserved on the conveying mechanism or/and the pressing mechanism.

Preferably, conveying mechanism includes the conveying roller, carries transmission assembly and carries drive assembly, the quantity of conveying roller is a plurality of, and is a plurality of the conveying roller parallel rotates side by side to be connected in polishing the frame and be located the coplanar, carry drive assembly locate polishing in the frame and the output is connected with carrying transmission assembly, carry transmission assembly's output and conveying roller connection.

Preferably, the conveying transmission assembly comprises a conveying chain wheel and a conveying chain, and the conveying driving assembly drives the conveying rollers to synchronously rotate through the conveying chain and the conveying chain wheel.

Preferably, the pressing mechanism comprises a pressing lifting assembly, a pressing support and a pressing roller, the top end of the pressing lifting assembly is fixed on the polishing rack, the bottom end of the pressing lifting assembly is fixed between the pressing portions, the number of the pressing rollers is multiple, the pressing rollers are parallelly and rotatably connected to the pressing support in parallel, the plane where the pressing rollers are located is parallel to the plane where the conveying rollers are located, the pressing lifting assembly drives the pressing rollers on the pressing support to jointly press the steel plate onto the conveying rollers, and therefore the steel plate can move forward under the power of the conveying rollers.

Preferably, the pressing support is further provided with a pre-tightening assembly, the pre-tightening assembly comprises a pre-tightening head hinged to the pressing roller, a pre-tightening rod arranged on the pre-tightening head, a pre-tightening spring sleeved on the pre-tightening rod and a pre-tightening plate arranged on the pressing support, the top of the pre-tightening rod penetrates through a through hole in the pre-tightening plate, and the top and the bottom of the pre-tightening spring are respectively abutted against the bottom of the pre-tightening plate and the top of the pre-tightening head.

Preferably, the number of the grinding mechanisms is two, the two grinding mechanisms are respectively an upper grinding mechanism and a lower grinding mechanism, the upper grinding mechanism penetrates through a through hole in the pressing mechanism to grind the upper end face of the steel plate, and the lower grinding mechanism penetrates through a through hole in the conveying mechanism to grind the lower end face of the steel plate.

Preferably, the upper polishing mechanism and the lower polishing mechanism form a set of polishing devices, the polishing machine comprises two or more sets of polishing devices, and the multiple sets of polishing devices are distributed on the frame along the traveling direction of the steel plate on the plurality of conveying rollers;

one of them group of grinding device can polish to slag and burr and get rid of, and another group of grinding device can polish to cinder and edge fillet and get rid of.

Preferably, grinding machanism including the lifting unit, mounting panel, both ends of polishing all can dismantle the mounting bracket of being connected with the mounting panel, rotate the drive pulley of being connected with the frame of polishing and locate drive pulley and driven pulley, the cover the belt of polishing of drive pulley and driven pulley, locate a plurality of polishing head and the drive pulley pivoted drive assembly of polishing the belt surface, the top of the lifting unit of polishing is connected with the frame of polishing, the bottom of the lifting unit of polishing is connected with the mounting panel, the lifting unit of polishing drives under mounting panel and the mounting bracket and removes so that the polishing head can pass through-hole on the hold-down mechanism or the through-hole on the conveying mechanism and polish the up end or the lower terminal surface of steel sheet respectively.

Preferably, the outermost grinding mechanism of the plurality of grinding mechanisms is hinged to the mounting plate so that the outermost grinding mechanism can rotate along the feeding and discharging direction of the steel plate.

Preferably, the mounting bracket includes the main part mounting bracket and with main part mounting bracket sliding connection's supplementary mounting bracket, the drive pulley is all installed on the main part mounting bracket with the drive assembly that polishes, driven pulley installs on supplementary mounting bracket, still be equipped with on the main part mounting bracket and be used for polishing the belt and tight pretension piece that rises, the output and supplementary mounting bracket fixed connection of pretension piece, pretension piece can promote to slide on supplementary mounting bracket and the main part mounting bracket so that driven pulley accomplishes polishing belt's rising to one side of keeping away from the drive pulley and tightly.

Preferably, the polisher further comprises a compensation measuring mechanism and a PLC control system which are arranged on the frame, the compensation measuring mechanism is arranged right above or below the polishing mechanism and comprises a connecting pipe, a fixing sleeve, a displacement sensor, a spring sleeve, a sliding sleeve, an end cover, a push plate, a mandrel and a compression spring, the connecting pipe is arranged on the frame and right faces the polishing mechanism, the fixing sleeve is detachably connected with one end, away from the frame, fixed on the connecting pipe, fixed on the inner wall of the connecting pipe, electrically connected with the PLC control system, fixed on one end, away from the connecting pipe, of the fixing sleeve, the sliding sleeve is connected on the inner wall of the fixing sleeve in a sliding manner, the end cover is arranged at one end, away from the connecting pipe, of the fixing sleeve and used for limiting the sliding sleeve, and the push plate is fixed at the bottom of the sliding sleeve, the dabber is fixed in the top of push pedal, compression spring cover is located on the dabber, compression spring's top and bottom respectively with spring housing and sliding sleeve butt.

The invention also provides a grinding tool automatic compensation method of the grinding machine, which adopts the following technical scheme:

the automatic compensation method for the grinding tool of the grinding machine is applied to the grinding machine and comprises the following steps:

the lifting mechanism drives the polishing mechanism to ascend, the top of the polishing mechanism abuts against the push plate and continuously pushes the push plate to move so that the sliding sleeve moves upwards in the fixed sleeve;

the displacement sensor is given to measure displacement parameters, when the displacement measured by the displacement sensor on the sliding sleeve reaches the set parameters, the displacement sensor sends a lifting mechanism stop signal to the PLC control system, and the lifting mechanism stops moving upwards;

and measuring the upward moving distance of the lifting mechanism, comparing the upward moving distance with the initial upward moving distance to obtain a difference value m, and then continuously moving the difference value m downwards on the basis of the initial descending distance when the lifting mechanism drives the grinding mechanism to descend, thereby completing the automatic compensation and correction of the position of the grinding mechanism.

In summary, the invention has the following beneficial technical effects:

1. the polishing machine replaces the traditional manual polishing mode of polishing the slag, the burrs and the original oxide skin on the surface of the blanking part, so that the polishing efficiency of the slag, the burrs and the original oxide skin on the surface of the blanking part which are remained on the surface of the steel plate is improved, and the labor intensity of workers is reduced.

2. The polishing machine can polish the upper surface and the lower surface of a steel plate simultaneously, and can polish the other surface of the steel plate after polishing the steel plate, so that the polishing efficiency of the steel plate is improved, and the labor intensity of workers is reduced.

3. Through installation compensation measurement mechanism and PLC control system on polishing for grinding machanism is polishing the steel sheet and is polishing after the certain time, and compensation measurement mechanism can measure the wearing and tearing volume of grinding apparatus on grinding machanism, and highly compensate when grinding mechanism goes up and down, makes the better surface of laminating the steel sheet of grinding apparatus of grinding machanism, thereby improves the effect of polishing to remaining slag, burr and the original cinder in unloading part surface on steel sheet surface.

4. This polisher can directly carry out the processing of chamfer or fillet to the steel sheet, for traditional artifical chamfer or fillet of polishing, perhaps utilize the machine that carries out chamfer or fillet alone to process chamfer or fillet, the all very big improvement production efficiency of polisher, and by a wide margin reduction staff's intensity of labour.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic structural view showing a conveying chain and a conveying sprocket at a conveying roller in fig. 1.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2.

Fig. 4 is a schematic view of a part of the mechanism in the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of the conveying mechanism and the pressing mechanism.

Fig. 6 is a schematic structural view of a pretensioning assembly of the pinch roller.

Figure 7 is a schematic elevation view of a sanding lift assembly in an embodiment of the present invention.

Fig. 8 is an enlarged schematic view of a portion B in fig. 2.

Fig. 9 is a schematic structural diagram of an automatic compensation mechanism in an embodiment of the present invention.

Fig. 10 is a state view of the grinder in the embodiment of the present invention.

Description of the reference numerals: 1. polishing the frame; 2. a conveying mechanism; 21. a conveying roller; 22. a transport transmission assembly; 221. a conveying sprocket; 222. a conveying chain; 23. a transport drive assembly; 3. a hold-down mechanism; 31. compressing the lifting assembly; 311. a compression drive assembly; 312. a compression screw; 313. compressing the threaded pipe; 32. compressing the bracket; 33. a pressure roller; 34. a pre-tightening assembly; 341. pre-tightening the head; 342. pre-tightening the rod; 343. pre-tightening the spring; 344. pre-tightening the plate; 4. a polishing mechanism; 41. polishing the lifting assembly; 411. polishing the lifting driving assembly; 412. polishing the screw; 413. polishing the threaded pipe; 42. mounting a plate; 43. a mounting frame; 44. a drive pulley; 45. a driven pulley; 46. polishing the belt; 47. polishing head; 48. polishing the driving component; 49. pre-tightening piece; 5. a compensation measuring mechanism; 51. a connecting pipe; 52. fixing a sleeve; 53. a displacement sensor; 54. a spring housing; 55. a sliding sleeve; 56. an end cap; 57. pushing the plate; 58. a mandrel; 59. compressing the spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment of the invention discloses a grinding machine.

Referring to fig. 1 and 2, the sander includes a sander frame 1, a conveying mechanism 2, a pressing mechanism 3, and a sanding mechanism 4.

The grinding machine frame 1 is determined according to actual use conditions and serves as a mounting carrier for the conveying mechanism 2, the pressing mechanism 3 and the grinding mechanism 4.

Referring to fig. 2 and 3, the conveying mechanism 2 is mounted on the grinding mechanism 4, and the conveying mechanism 2 is used for conveying the steel plate, preferably, the conveying mechanism 2 includes a plurality of conveying rollers 21, a conveying transmission assembly 22 and a conveying driving assembly 23, the plurality of conveying rollers 21 are parallel to each other and are arranged on the grinding machine frame 1, and the plurality of conveying rollers 21 are located in the same plane, preferably, the plane where the plurality of conveying rollers 21 are located is parallel to the ground.

Referring to fig. 2 and 3, the output end of the conveying transmission assembly 22 is connected to a plurality of conveying rollers 21, and the input end of the conveying transmission assembly 22 is connected to the output end of the conveying driving assembly 23, preferably, the conveying driving assembly 23 may adopt a combination of a conveying motor and a conveying reducer, and the output end of the conveying motor is connected to the input end of the conveying reducer through a coupling. Preferably, the conveying transmission assembly 22 adopts a combination of a conveying chain wheel 221 and a conveying chain 222, in order to facilitate the conveying motor to drive the plurality of conveying rollers 21 to rotate, two conveying chain wheels 221 are installed on each conveying roller 21, a conveying chain wheel 221 is arranged on an output end of the conveying speed reducer, a conveying chain 222 is sleeved between the conveying chain wheel 221 on the conveying speed reducer and the conveying chain wheel 221 on one of the conveying rollers 21, and a conveying chain 222 is sleeved between the conveying chain wheels 221 on two adjacent conveying rollers 21, so that the conveying motor drives all the conveying rollers 21, in use, the steel plate is placed on the conveying rollers 21, and the plurality of conveying rollers 21 simultaneously drive and convey the steel plate.

Preferably, if the conveying decelerator drives the conveying sprocket 221 at the edge, two conveying sprockets 221 are provided on each conveying roller 21, and one conveying sprocket 221 may be provided on the last driven conveying roller 21. Assuming that the conveyance decelerator drives the intermediate conveyance roller 21, three conveyance sprockets 221 are provided on the driven conveyance roller 21 so that the conveyance motors drive all the conveyance rollers 21 synchronously by the conveyance decelerator.

In other embodiments, each conveying roller 21 may further include a conveying sprocket 221, and then all the sprockets are wrapped by a conveying chain 222, so that the conveying motor drives all the conveying rollers 21 to be synchronously driven through the conveying reducer.

Referring to fig. 4 and 5, the pressing mechanism 3 is located right above the conveying mechanism 2, and the pressing mechanism 3 presses the steel plate on the conveying mechanism 2 so that the grinding mechanism 4 grinds the steel plate. Preferably, the pressing mechanism 3 comprises a pressing lifting assembly 31, a pressing support 32 and a pressing roller 33, the top end of the pressing lifting assembly 31 is fixed on the polishing machine frame 1, the bottom end of the pressing lifting assembly 31 is fixedly connected with the top end of the pressing support 32, and the pressing lifting assembly 31 drives the pressing support 32 to move up and down. The quantity of compressing roller 33 is a plurality of, and parallel side by side distributes on compressing tightly support 32 between a plurality of compressing rollers 33, and a plurality of compressing rollers 33 are located the coplanar to the plane that a plurality of compressing rollers 33 belonged to is parallel with the plane that a plurality of conveying rollers 21 belonged to, so that a plurality of compressing rollers 33 can compress tightly the steel sheet on a plurality of conveying rollers 21 simultaneously.

Preferably, the pressing lifting assembly 31 includes a pressing driving assembly 311, a pressing screw 312, a pressing threaded pipe 313 and a pressing guide shaft, the pressing driving assembly 311 is fixed at the top end of the polishing machine frame 1, the pressing screw 312 is vertically arranged and fixedly connected with the output end of the pressing driving assembly 311, the pressing threaded pipe 313 is in threaded connection with the pressing screw 312, and the bottom end of the pressing threaded pipe 313 is fixedly connected with the pressing support 32. The pressing guide shaft is vertically fixed on the grinding rack 1, a through hole for the pressing guide roller to pass through is formed in the pressing support 32, the pressing drive assembly 311 drives the pressing screw rod 312 to rotate, and the pressing support 32 slides up and down on the pressing guide roller so that the pressing screw rod 312 can drive the pressing support 32 to move up and down through the pressing threaded pipe 313.

Preferably, the pressing driving assembly 311 is a combination of a pressing motor and a pressing screw elevator, and the pressing screw 312 is fixedly connected with an output rod of the pressing screw elevator or connected with a coupling or integrally formed. Preferably, an upper pressing speed reducer is further arranged between the pressing motor and the pressing spiral elevator.

In other embodiments, the pressing lifting assembly 31 can also drive the pressing bracket 32 to move up and down by using a hydraulic cylinder or an electric cylinder.

Further, referring to fig. 6, a waist-shaped hole is formed in the pressing bracket 32, two ends of the pressing roller 33 penetrate through the waist-shaped hole, and the pressing roller 33 can move up and down in the waist-shaped hole, so that a pre-tightening assembly 34 for pre-tightening the pressing roller 33 is further arranged between the pressing bracket 32 and the pressing roller 33, and the pre-tightening assembly 34 comprises a pre-tightening head 341, a pre-tightening rod 342, a pre-tightening spring 343 and a pre-tightening plate 344. When the device is used, after the pressing roller 33 presses the steel plate, the pre-tightening spring 343 provides a buffering force for the pressing roller 33, direct impact between the pressing roller 33 and the steel plate is reduced, the effect of protecting the pressing roller 33 can be achieved, until the top end of the pressing roller 33 abuts against the top of the waist-shaped hole, the pressing roller 33 does not move, and the steel plate on the conveying roller 21 is pressed.

Preferably, the top of the pre-tightening rod 342 is externally threaded, and after the pre-tightening rod 342 passes through the through hole of the pre-tightening plate 344, a pre-tightening nut is screwed on the top of the pre-tightening rod 342, and the pre-tightening nut is used to prevent the pre-tightening rod 342 from falling out of the through hole of the pre-tightening plate 344.

Referring to fig. 2, the number of the grinding mechanisms 4 may be determined according to actual use conditions, and the grinding mechanisms 4 are arranged on the grinding machine frame 1. Preferably, the polishing mechanism 4 can be divided into an upper polishing mechanism and a lower polishing mechanism, the upper polishing mechanism is located right above the pressing mechanism 3, and the lower polishing mechanism is located right below the conveying mechanism 2. In order to facilitate the polishing mechanism to polish the steel plate, a space or a through hole or a gap through which the polishing mechanism can pass is reserved between the pressing rollers 33. Similarly, in order to facilitate the lower polishing mechanism to polish the steel plate, a space or a through hole or a gap through which the lower polishing mechanism can pass may be reserved between the plurality of conveying rollers 21.

Referring to fig. 2, the upper polishing mechanism and the lower polishing mechanism may form a set of polishing devices, in this embodiment, two sets of polishing devices are disposed on the polishing machine, in other embodiments, several sets of polishing devices may be disposed on the polishing machine, and the several sets of polishing devices are disposed and distributed on the frame along the traveling direction of the steel plate on the conveying roller 21.

In another practical embodiment, only an upper polishing device or a lower polishing device is provided, and when the polishing device is used, one surface of the steel plate is polished first, and then the other surface of the steel plate is polished, so that the polishing of the whole steel plate is completed.

Preferably, referring to fig. 4, 7 and 8, the sanding mechanism 4 includes a sanding lift assembly 41, a mounting plate 42, a mounting bracket 43, a drive pulley 44, a driven pulley 45, a sanding belt 46, a sanding head 47 and a sanding drive assembly 48.

The installation of lifting unit 41 of polishing is fixed in frame 1 of polishing, lifting unit 41 of polishing is including the lifting drive subassembly 411 of polishing, the screw rod 412 of polishing, the screwed pipe 413 of polishing and the guiding axle of polishing, lifting drive subassembly 411 of polishing is fixed in the top or the bottom of frame 1 of polishing, the vertical setting of screw rod 412 of polishing just with the output fixed connection of lifting drive subassembly 411 of polishing, the screwed pipe 413 of polishing and the threaded connection of screw rod 412, the bottom and the mounting panel 42 fixed connection of the screwed pipe 413 of polishing. The guiding axle of polishing is vertical to be fixed in on the frame 11 of polishing, opens the through-hole that is used for the guiding axle of polishing to pass through on the mounting panel 42, and the lift drive assembly 411 of polishing drives the screw 412 pivoted in-process of polishing, and mounting panel 42 reciprocates on the guiding axle of polishing to make the screw 412 of polishing can the through-hole screw pipe 413 of polishing drive mounting panel 42 and go up and down. Preferably, the polishing lifting driving assembly 411 is a combination of a polishing motor and a polishing spiral lifter, and the polishing screw 412 is fixedly connected with an output rod of the polishing spiral lifter or connected with the output rod through a coupler or integrally formed. Preferably, an upper grinding speed reducer is further arranged between the grinding motor and the grinding spiral elevator.

In other embodiments, the sanding lifting assembly 41 may also be moved up and down by a hydraulic or electric cylinder driving the mounting plate 42.

Referring to fig. 2, 7 and 8, the mounting bracket 43 is fixedly mounted on the mounting plate 42, and the mounting bracket 43 is detachably connected to the mounting plate 42, including but not limited to a bolt connection. The mounting frame 43 serves as a mounting carrier for mounting the driving pulley 44, the driven pulley 45, the polishing belt 46, the polishing heads 47 and the polishing driving assembly 48, a central axis of the driving pulley 44 and a central axis of the driven pulley 45 are rotatably connected to the mounting frame 43, the driving pulley 44 and the driven pulley 45 are located in the same plane, the polishing belt 46 is wrapped outside the driving pulley 44 and the driven pulley 45, the number of the polishing heads 47 is multiple, the polishing heads 47 are distributed along the outer side of the polishing belt 46, and preferably, the polishing heads 47 are uniformly or non-uniformly distributed on the polishing belt 46. The grinding drive assembly 48 includes a grinding motor, the output of which is directly connected to the drive pulley 44 and drives the drive pulley 44 to rotate, and thus the grinding belt 46 is driven to rotate. Preferably, the grinding motor can also drive the driving pulley 44 to rotate through belt transmission or chain transmission, and specifically, the grinding motor can adopt a servo motor, or three motors are provided with grinding reducers, so that the output ends of the grinding reducers drive the driving pulley 44 to rotate.

Preferably, the last grinding machanism or lower grinding machanism of same position can adopt two liang of mode installations side by side, simultaneously in the use, for the convenience of staff changes or maintains the polishing head 47 on the grinding machanism 4, and the one end of the mounting bracket 43 that is close to the grinding machanism 4 in two liang of installations side by side can adopt the round pin axle to rotate with mounting bracket 43 and be connected, and the other end still adopts bolted connection's mode with mounting bracket 42. Like this, when the staff inspects or maintains grinding mechanism 4, the accessible is unpacked grinding mechanism 4 other end and mounting panel 42's bolt apart, then rotates this grinding mechanism 4, makes this grinding mechanism 4 and grinding mechanism 4 with this grinding mechanism 4 side by side all can expose to the staff's inspection and maintenance of being convenient for.

Further, referring to fig. 8, the polishing mechanism 4 further includes a preload member 49 for tensioning the polishing belt 46, and preferably, the mounting frame 43 is divided into a main body mounting frame 43 and an auxiliary mounting frame 43, and the auxiliary mounting frame 43 is slidably connected to the main body mounting frame 43. The driving pulley 44 and the polishing driving assembly 48 are both mounted on the main body mounting frame 43, the driven pulley 45 is mounted on the auxiliary mounting frame 43, the preload piece 49 is mounted on the main body mounting frame 43, the output end of the preload piece 49 is fixedly connected with the auxiliary mounting frame 43, the preload piece 49 can adopt a hydraulic cylinder or an electric cylinder, when the telescopic rod of the preload piece 49 extends out, the auxiliary mounting frame 43 is pushed to slide on the main body mounting frame 43, so that the distance between the driven pulley 45 and the driving pulley 44 is increased, and the polishing belt 46 is tensioned.

In this embodiment, two sets of grinding device can be respectively polished to different residues, wherein a set of grinding device is polished to slag and burr and is got rid of, another set of grinding device is polished to cinder and edge radius angle and is got rid of, two sets of grinding device are polished to the different residues on the steel sheet respectively and are got rid of, and two sets of grinding device's position can be adjusted according to the in-service use condition, but the difference between two sets of grinding device only lies in the difference of polishing head 47, when polishing the residue of difference and get rid of, choose for use different types of polishing head 47, for example emery wheel, abrasive paper and special steel spare. Like this, utilize two sets of or multiunit grinding device to polish respectively to the residue of different positions on the steel sheet and different types and get rid of, not only improved the efficiency of polishing of steel sheet, also make the quality that the steel sheet was polished better simultaneously. And when chooseing for use to polish 47, this polisher can also carry out the polishing of chamfer and fillet to the steel sheet, for traditional artifical chamfer or fillet of polishing, perhaps utilize the machine that carries out chamfer or fillet alone to process chamfer or fillet, the all very big improvement production efficiency of polisher, and by a wide margin reduction staff's intensity of labour.

Further, referring to fig. 2 and 9, the polishing machine is further provided with a compensation measuring mechanism 5 and a PLC control system, wherein the compensation measuring mechanism 5 is used for measuring the abrasion loss of the polishing head 47 in the polishing mechanism 4, and the position of the polishing mechanism 4 is corrected by combining with the PLC control system.

The compensation measuring mechanism 5 is located under or under the polishing mechanism 4, for the upper polishing mechanism, the compensation measuring mechanism 5 is located over the upper polishing mechanism, and for the lower polishing mechanism, the compensation measuring mechanism 5 is located under the lower polishing mechanism.

Specifically, referring to fig. 2 and 9, the compensation measuring mechanism 5 includes a connection pipe 51, a fixing sleeve 52, a displacement sensor 53, a spring sleeve 54, a sliding sleeve 55, an end cap 56, a push plate 57, a core shaft 58, and a compression spring 59. The connecting pipe 51 is fixedly installed at the bottom of the top end of the grinding machine frame 1, and the fixing sleeve 52 is detachably connected and installed at the bottom of the connecting pipe 51, wherein the detachable connection mode includes but is not limited to plugging, clamping, threaded connection and bolt connection. The displacement sensor 53 is fixed on the inner wall of the connection pipe 51 or the top end of the fixing sleeve 52, and the displacement sensor 53 is electrically connected to the PLC control system. The spring housing 54 is fixed to the bottom side of the inner top end of the fixing housing 52.

Referring to fig. 2 and 9, the sliding sleeve 55 is slidably connected to the inner wall of the fixed sleeve 52 and can slide up and down in the fixed sleeve 52, a protruding portion is provided on the outer wall of the sliding sleeve 55, the end cap 56 is detachably connected to the bottom of the fixed sleeve 52, the detachable connection includes but is not limited to plugging, clamping, threaded connection and bolt connection, in this embodiment, the end cap 56 and the fixed sleeve 52 are connected by bolts, and the end cap 56 limits the sliding sleeve 55 by the protruding portion, so that the sliding sleeve 55 cannot be separated from the fixed sleeve 52. The push plate 57 is fixed at the bottom of the sliding sleeve 55, the core shaft 58 is fixed at the bottom end inside the sliding sleeve 55, and the core shaft 58 is located between the sliding sleeve 55 and the fixed sleeve 52. The number of mandrels 58 can be two to three, and the specific number of mandrels 58 can be determined according to the actual use condition. The number of the compression springs 59 is the same as that of the core shafts 58, one compression spring 59 is sleeved on each core shaft 58, the top end of each core shaft 58 extends into the spring sleeve 54, the top end of each compression spring 59 abuts against the spring sleeve 54, and the bottom end of each compression spring 59 abuts against the bottom end inside the sliding sleeve 55. The measuring end of the displacement sensor 53 can extend into the sliding sleeve 55, measure the distance of the sliding sleeve 55 moving upwards in the fixed sleeve 52, and then cooperate with the PLC control system to adjust the polishing mechanism 4.

The position of the components in the compensation measuring mechanism 5 directly below the lower grinding mechanism is opposite to the position of the components in the compensation measuring mechanism 5 directly above the upper grinding mechanism.

The embodiment also discloses an automatic compensation method for the grinding tool of the grinding machine, which is based on the integral scheme of the grinding machine in the embodiment, and the main using method is based on the compensation measuring mechanism 5 and the PLC control system. The following is an example of the automatic compensation method of the above polishing mechanism.

The automatic compensation method comprises the following steps:

after the upper polishing mechanism polishes the steel plate, the lifting mechanism drives the upper polishing mechanism to move upwards, the upper polishing mechanism touches the push plate 57 in the process of moving upwards, at the moment, the upper polishing mechanism continues to move upwards and pushes the push plate 57 to move upwards and downwards, the push plate 57 pushes the sliding sleeve 55 to move upwards, and the displacement sensor 53 measures the distance of the sliding sleeve 55 moving upwards in the process of moving the sliding sleeve 55 upwards;

when the grinding machine is used, an initial measurement displacement parameter S is usually set for the displacement sensor 53 in the PLC control system, so that when the distance measured by the displacement sensor 53 to the sliding sleeve 55 reaches the initial measurement displacement parameter S in the process of pushing the push plate 57 to move upwards by the grinding mechanism 4, the PLC control system sends a signal to the lifting mechanism and controls the motor of the lifting drive assembly to stop operating, so that the lifting mechanism stops moving upwards;

and finally, measuring the upward moving distance of the lifting mechanism on the lifting screw, and carrying out difference on the upward moving distance of the lifting mechanism on the lifting screw when the new polishing head 47 pushes up the push plate 57 to enable the parameter measured by the displacement sensor 53 to be the initial measurement displacement parameter S to obtain a difference value m, namely obtaining the abrasion loss of the polishing head 47 to be the difference value m, so that when the polishing mechanism 4 descends to polish the steel plate, the polishing mechanism 4 moves downwards by the distance m on the basis of the original polishing position, further, the automatic compensation and correction of the polishing mechanism 4 of the polishing machine are completed, and the polishing mechanism 4 continues to polish the steel plate.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A sander is characterized by comprising

A grinding machine frame as an installation carrier;

2. The grinding machine according to claim 1, wherein the conveying mechanism comprises a plurality of conveying rollers, a conveying transmission assembly and a conveying driving assembly, the plurality of conveying rollers are parallelly and parallelly connected and rotatably connected to the grinding frame and located in the same plane, the conveying driving assembly is arranged on the grinding frame, an output end of the conveying driving assembly is connected with the conveying transmission assembly, and an output end of the conveying transmission assembly is connected with the conveying rollers.

3. The sander according to claim 2, wherein the conveyor drive assembly comprises a conveyor sprocket and a conveyor chain, and the conveyor drive assembly drives the plurality of conveyor rollers to rotate synchronously with the conveyor sprocket via the conveyor chain.

4. The grinding machine according to claim 2 or 3, wherein the pressing mechanism comprises a pressing lifting assembly, a pressing support and a pressing roller, the top end of the pressing lifting assembly is fixed on the grinding machine frame, the pressing lifting assembly is fixed at the bottom end of the pressing lifting assembly between the pressing, the number of the pressing rollers is multiple, the pressing rollers are parallelly and parallelly connected to the pressing support in a rotating mode, the plane where the pressing rollers are located is parallel to the plane where the conveying rollers are located, and the pressing lifting assembly drives the pressing rollers on the pressing support to jointly press the steel plate onto the conveying rollers so that the steel plate can move forward under the power of the conveying rollers.

5. The grinding machine according to claim 4, wherein the pressing bracket is further provided with a pre-tightening assembly, the pre-tightening assembly comprises a pre-tightening head hinged to the pressing roller, a pre-tightening rod arranged on the pre-tightening head, a pre-tightening spring sleeved on the pre-tightening rod, and a pre-tightening plate arranged on the pressing bracket, the top of the pre-tightening rod penetrates through a through hole in the pre-tightening plate, and the top and the bottom of the pre-tightening spring respectively abut against the bottom of the pre-tightening plate and the top of the pre-tightening head.

6. The sander according to claim 1, wherein the number of the grinding mechanisms is two, the two grinding mechanisms are an upper grinding mechanism and a lower grinding mechanism, the upper grinding mechanism grinds the upper end face of the steel plate through the through hole in the pressing mechanism, and the lower grinding mechanism grinds the lower end face of the steel plate through the through hole in the conveying mechanism.

7. A sanding machine according to claim 6, characterized in that the upper and lower sanding mechanisms form a set of sanding devices comprising two or more sets of sanding devices distributed on the frame in the travelling direction of the steel sheet on the plurality of delivery rollers;

8. A sander according to claim 1, 6 or 7, wherein the sanding mechanism comprises a sanding lifting assembly, a mounting plate, a mounting bracket with both ends detachably connected to the mounting plate, a driving pulley and a driven pulley rotatably connected to the sanding frame, a sanding belt sleeved on the driving pulley and the driven pulley, a plurality of sanding heads arranged on the outer surface of the sanding belt, and a sanding driving assembly driving the driving pulley to rotate, wherein the top end of the sanding lifting assembly is connected to the sanding frame, the bottom end of the sanding lifting assembly is connected to the mounting plate, and the sanding lifting assembly drives the mounting plate and the mounting bracket to move downwards so that the sanding heads can pass through holes in the pressing mechanism or through holes in the conveying mechanism to sand the upper end surface or the lower end surface of the steel plate respectively.

9. The sander of claim 8 wherein an outermost one of said plurality of said sanding mechanisms is hingedly connected to said mounting plate to allow said outermost one to rotate in the direction of feed and discharge of the steel sheet.

10. The sander as set forth in claim 8, wherein the mounting bracket comprises a main body mounting bracket and an auxiliary mounting bracket slidably connected to the main body mounting bracket, the driving pulley and the sanding drive assembly are both mounted on the main body mounting bracket, the driven pulley is mounted on the auxiliary mounting bracket, the main body mounting bracket is further provided with a preload member for tightening the sanding belt, an output end of the preload member is fixedly connected to the auxiliary mounting bracket, and the preload member can push the auxiliary mounting bracket and the main body mounting bracket to slide so that the driven pulley moves to a side away from the driving pulley to complete tightening of the sanding belt.

11. The polishing machine according to claim 1, wherein the polishing machine further comprises a compensation measuring mechanism and a PLC control system, the compensation measuring mechanism is disposed on the frame and is located directly above or below the polishing mechanism, the compensation measuring mechanism comprises a connecting pipe, a fixing sleeve, a displacement sensor, a spring sleeve, a sliding sleeve, an end cover, a push plate, a core shaft and a compression spring, the connecting pipe is disposed on the frame and directly faces the polishing mechanism, the fixing sleeve is detachably connected and fixed to one end of the connecting pipe away from the frame, the displacement sensor is fixed on an inner wall of the connecting pipe, the displacement sensor is electrically connected to the PLC control system, the spring sleeve is fixed to one end of the fixing sleeve away from the connecting pipe, the sliding sleeve is slidably connected to an inner wall of the fixing sleeve, the end cover is located at one end of the fixing sleeve away from the connecting pipe for limiting the sliding sleeve, the push plate is fixed in the bottom of sliding sleeve, the dabber is fixed in the top of push plate, compression spring cover is located on the dabber, compression spring's top and bottom respectively with spring housing and sliding sleeve butt.

12. A grinder automatic compensation method for a grinder according to claim 11, comprising the steps of: