Grinding machine

Abstract

The utility model relates to the technical field of stainless steel plate production equipment, and provides a grinding machine which comprises a workbench, a grinding device and a discharging device. The workbench comprises a base and a polishing table arranged on the base, the table top of the polishing table is in an arch shape with the high middle and the two low sides, and an assembling through hole is formed in the polishing table; the grinding device comprises a gantry rail system, a portal frame, a grinding system and a pressing system, the grinding system can conduct grinding along the arch-shaped face of the grinding table, and the pressing system can provide pressure adapting to the arch-shaped face of the grinding table; the discharging device comprises a material pushing mechanism, a discharging conveying line and an air supply mechanism, wherein the material pushing mechanism and the discharging conveying line are arranged at the two axial ends of the workbench correspondingly. The air supply mechanism comprises an air supply disc installed in the assembling through hole, an air box communicating with the air supply disc, an air path and an air pump, and the air path and the air pump are configured to supply high-pressure air in a high-pressure air source to the air box. According to the scheme, the polishing machine can be used for rapidly discharging the thin stainless steel plate without causing deformation of the thin stainless steel plate.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel production and processing equipment, in particular to a grinding machine suitable for making rough textures on the surface of a relatively thin stainless steel plate. Background Art

[0002] In some applications, the stainless steel plate is required to have a smooth surface, such as a mirror effect. In other applications, the stainless steel plate is required to have a rough texture to reduce its reflection type and avoid potential safety hazards caused by reflection affecting vision.

[0003] The rough texture on the surface of stainless steel is obtained by grinding. For example, the utility model patent with publication number CN210878937U, entitled "A device for making rough patterns on the surface of a stainless steel plate", was previously applied for by the applicant, which describes a grinding machine that can be used to make rough textures on the surface of a stainless steel plate.

[0004] However, in the actual production process, the applicant found that after the grinder described in the above patent has completed the grinding of thin stainless steel plates with a thickness of less than 1mm (for example, 0.4mm, 0.6mm or 0.8mm, etc.), if the vacuum suction cup is used to remove the stainless steel plate, the vacuum suction cup partially absorbs and lifts the stainless steel plate, but the unabsorbed part droops under the action of its own weight, which easily causes the stainless steel plate to deform. If manual unloading is used, there is a problem of inefficiency. At the same time, the weight of thin stainless steel is relatively light, and a limiting structure must be used during grinding. The setting of the limiting structure in the prior art further affects the unloading efficiency of thin stainless steel plates. Utility Model Content

[0005] The grinder provided in the embodiment of the present application solves the problem that the grinder in the prior art has low unloading efficiency after completing the grinding process of the thin stainless steel plate and easily causes deformation of the thin stainless steel plate during the unloading process.

[0006] The embodiment of the present application provides a grinding machine, including a workbench, a grinding device and a feeding device;

[0007] The workbench includes a base and a grinding table arranged on the base, the grinding table has an axis, and the table top of the grinding table is in an arch shape with a high middle and low sides with the axis as the center, and an assembly through hole is opened on the grinding table near the side;

[0008] The grinding device comprises a gantry rail system arranged on both sides of the grinding table along the direction of the axis, a gantry frame arranged across the workbench and capable of moving along the gantry rail system, and a grinding system and a clamping system installed through the gantry frame, wherein the grinding system can grind along the arched surface of the grinding table, and the clamping system can provide pressure adapted to the arched surface of the grinding table;

[0009] The unloading device includes a pushing mechanism, a unloading conveyor line, and an air supply mechanism respectively arranged at the axial ends of the workbench, the pushing mechanism includes two groups, the unloading conveyor line has a conveying surface flush with the highest position of the grinding table, the air supply mechanism includes an air supply disk installed in the assembly through hole, a bellows connected to the air supply disk, and an air path and an air pump configured to supply high-pressure gas in a high-pressure air source to the bellows, and the air supply disk has a format shape that is the same shape as the opening of the assembly through hole.

[0010] Preferably, the arch height of the grinding table is 3-10 cm.

[0011] Preferably, the gantry includes a pair of vertical beams and a cross beam system installed through the pair of vertical beams, the grinding system includes a slider movably installed on the cross beam system, a grinding cylinder installed on the bottom surface of the slider, a grinding head installed on the telescopic end of the grinding cylinder through a pivot structure, and a grinding disc installed at the output end of the grinding head, and the pivot structure allows the grinding disc to swing in a plane perpendicular to the axis.

[0012] Preferably, the pivot structure includes a pivot seat fixedly mounted on the telescopic end of the grinding cylinder and a pivot block mounted on the pivot seat via a pivot shaft, and the bottom surface of the pivot block is fixedly connected to the grinding machine head; a torsion spring is installed on the pivot shaft.

[0013] Preferably, the clamping system is arranged in front of the grinding direction of the grinding system.

[0014] Preferably, the gantry includes a pair of vertical beams and a fixed horizontal beam installed through the pair of vertical beams, the clamping system includes multiple groups of clamping components, the clamping components include a clamping cylinder and a clamping roller, the clamping cylinder is fixedly installed on the fixed horizontal beam and its telescopic end extends below the fixed horizontal beam, and the clamping roller is fixedly installed on the telescopic end of the clamping cylinder.

[0015] Preferably, two rows of assembly through holes are provided on the polishing table, and the air supply plates are arranged in one-to-one correspondence with the assembly through holes.

[0016] Preferably, the air supply disk and the bellows box are integrally formed.

[0017] Preferably, the pushing mechanism is disposed on an axial extension section of the assembly through hole array.

[0018] Preferably, the pushing mechanism includes a lifting cylinder fixedly arranged on the base, a lifting platform installed at the telescopic end of the lifting cylinder, an abutment plate extending vertically upward from the rear end of the lifting platform, a pushing cylinder installed through the lifting platform and the abutment plate, and a pushing plate installed at the telescopic end of the pushing cylinder.

[0019] A grinding machine provided in an embodiment of the present application utilizes the natural recovery of the shape of a thin stainless steel plate and the assistance of an air supply mechanism to lift both sides of the thin stainless steel plate off the surface of a grinding table and form a certain distance. This distance enables (1) the thin stainless steel plate to contact the grinding table only at the highest position of the grinding table, while other areas are suspended by the air flow, thereby reducing the friction resistance between the thin stainless steel plate and the grinding table; (2) the push plate of the push mechanism can contact the thin stainless steel plate and push the thin stainless steel plate to the feeding conveyor line more easily. The entire process takes only a few seconds, thereby improving the feeding efficiency and not causing deformation of the thin stainless steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A schematic diagram of the structure of a grinder provided in an embodiment of the present application.

[0022] Figure 2 A schematic diagram of the structure of a workbench provided in an embodiment of the present application.

[0023] Figure 3 A schematic diagram of the structure of a grinding device provided in an embodiment of the present application.

[0024] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0025] Figure 5 A schematic diagram of the structure of the pushing mechanism provided in an embodiment of the present application.

[0026] Figure 6 A schematic diagram of the structure of the air supply mechanism provided in an embodiment of the present application.

[0027] In the above figure: 1. workbench, 2. grinding device, 3. unloading device, 11. base, 12. grinding table, 13. axis, 14. assembly through hole, 21. gantry track system, 22. gantry, 23. grinding system, 231. slider, 232. grinding cylinder, 233. pivot structure, 234. grinding head, 235. grinding disc, 24. clamping system, 241. clamping cylinder, 242. clamping roller, 31. pushing mechanism, 311. lifting cylinder, 312. lifting platform, 313. abutment plate, 314. pushing cylinder, 315. pushing plate, 32. unloading conveyor line, 33. air supply mechanism, 331. wind disk, 332. bellows. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0029] Example: Refer to Figure 1-6 A grinding machine shown includes a workbench 1, a grinding device 2, a feeding device 3 and a control system. The control system is any feasible structure in the prior art, and is configured to electrically control the workbench 1, the grinding device 2 and the feeding device 3 so that they perform actions according to the designed process.

[0030] The workbench 1 comprises a base 11 and a grinding table 12 fixedly arranged on the base 11 by screw connection or welding or other existing technical means. The base 11 is any feasible structure in the prior art, and is configured to support and elevate the grinding table 12.

[0031] The grinding table 12 has a certain width and an axis 13. With the axis 13 as the center, the table surface of the grinding table 12 is in an arch shape with a high middle and low sides, and the arch height is 3-10 cm.

[0032] An assembly through hole 14 is provided near the side of the polishing table 12. Specifically, the assembly through holes 14 include two rows, which are respectively provided at two positions near the side of the polishing table 12. Adjacent assembly through holes 14 in each row have a suitable spacing. The assembly through holes 14 have a rectangular projection surface. In order to make the upper opening and the lower opening of the assembly through hole 14 both in a free state, the shape of the base 11 should be provided with a through hole structure or a retreat surface for avoiding the assembly through hole 14. The base 11 provided in this embodiment has a pair of retreat surfaces, so that the surface of the base 11 supports the area between the two rows of assembly through holes 14 in the bottom surface of the polishing table 12.

[0033] The grinding device 2 includes a gantry rail system 21 arranged on both sides of the grinding table 12 along the axis 13, a gantry 22 arranged across the workbench 1 and capable of moving along the gantry rail system 21, and a grinding system 23 and a clamping system 24 installed through the gantry 22.

[0034] The gantry track system 21 is any feasible structure in the prior art, such as a combination of a track and a servo screw drive system, or a combination of a track and a sprocket drive system. The gantry track system 21 is configured to drive the gantry 22 to move along the direction of the axis 13.

[0035] The gantry 22 includes a pair of vertical beams, and a beam system and a fixed beam installed through the pair of vertical beams. The vertical beam is any feasible structure in the prior art, and is configured to be driven by the gantry track system 21 and move along the direction of the axis 13. The beam system is screwed on the pair of vertical beams, and is any feasible structure in the prior art, such as a combination of a track and a servo screw drive system, or a combination of a track and a sprocket drive system. The beam system is configured to drive the grinding system 23 to move in a direction perpendicular to the axis 13 (i.e., the axial direction of the beam system). The fixed beam is an I-beam, screwed on a pair of vertical beams, and is configured to install a clamping system 24. Preferably, the fixed beam is arranged in front of the grinding direction of the beam system, so that the clamping system 24 is arranged in front of the grinding direction of the grinding system 23.

[0036] The grinding system 23 can perform grinding along the arched surface of the grinding table 12. The grinding system 23 includes a slider 231 movably mounted on the beam system, a grinding cylinder 232 mounted on the bottom surface of the slider 231, a grinding head 234 mounted on the telescopic end of the grinding cylinder 232 through a pivot structure 233, and a grinding disc 2345 mounted on the output end of the grinding head 234. The slider 231 is any feasible structure in the prior art, and is configured to be driven by the beam system to move in a direction perpendicular to the axis 13 (i.e., the axial direction of the beam system). The grinding cylinder 232 is controlled by the control system, and can keep the grinding disc 235 in contact with the surface of the thin stainless steel plate to be ground and provide a constant grinding pressure as the distance between the table top of the grinding table 12 and the beam system changes. The pivot structure 233 includes a pivot seat welded to the telescopic end of the grinding cylinder 232 and a pivot block mounted on the pivot seat via a pivot shaft, the bottom surface of the pivot block is welded to the grinding head 234, so that the pivot structure 233 allows the grinding disc 235 to swing on a plane perpendicular to the axis 13. Preferably, a torsion spring is sleeved on the pivot shaft, one end of the torsion spring is fixed to the pivot seat, and the other end is fixed to the pivot block. The grinding head 234 includes a motor mounting box and a grinding motor mounted therein, the output shaft of the grinding motor extends out of the mounting box and is connected to the grinding disc 235 via a coupling.

[0037] The clamping system 24 can provide pressure adapted to the arched surface of the grinding table 12. The clamping system 24 includes a plurality of spaced clamping assemblies, which include a clamping cylinder 241 and a clamping roller 242. The clamping cylinder 241 is fixedly mounted on the fixed crossbeam and its telescopic end extends below the fixed crossbeam, and the clamping roller 242 is key-connectedly mounted on the telescopic end of the clamping cylinder 241. The clamping cylinder 241 is controlled by a control system, so that the clamping roller 242 mounted thereon can always contact the surface of the thin stainless steel plate to be polished and provide a constant clamping pressure.

[0038] The material unloading device 3 comprises a material pushing mechanism 31 , a material unloading conveying line 32 , and an air supply mechanism 33 which are respectively arranged at two axial ends of the workbench 1 .

[0039] The push mechanism 31 is arranged on the axial extension section of the assembly through hole 14. The push mechanism 31 includes a lifting cylinder 311 screwed on the base 11, a lifting platform 312 welded or keyed to the telescopic end of the lifting cylinder 311, a support plate 313 vertically extending upward from the rear end of the lifting platform 312, a push cylinder 314 installed through the lifting platform 312 and the support plate 313, and a push plate 315 installed at the telescopic end of the push cylinder 314.

[0040] The conveying surface of the unloading conveyor line 32 is flush with the highest position of the grinding table 12. The unloading conveyor line 32 can be any feasible structure in the prior art, such as a roller conveyor or a belt conveyor. The unloading conveyor line 32 provided in this embodiment is a roller conveyor line, including at least one row of powered rollers and several rows of unpowered support rollers.

[0041] The air supply mechanism 33 includes an air supply disc 331 corresponding to and installed in the assembly through hole 14, a bellows 332 connected to the air supply disc 331, and an air circuit and an air pump configured to supply high-pressure gas in the high-pressure gas source to the bellows 332. The air supply disc 331 has a format shape that is the same as the opening of the assembly through hole 14. The multiple air supply discs 331 and the bellows 332 provided in this embodiment are integrally formed, and the air supply disc 331 is provided with multiple air supply holes, and the aperture of the air supply holes is preferably 0.3-0.5cm. The bellows 332 is installed on the base 11 and abuts the retreat surface, and the air supply disc 331 extends into the assembly through hole 14 and forms a complete grinding support surface with the surface of the grinding table 12. The high-pressure gas source, the air circuit and the air pump can all be any feasible product and combination in the prior art.

[0042] Preferably, the arch height of the table surface of the grinding table 12 is 4-5 cm. When the arch height is within the range of 4-5 cm, it can prevent the thin stainless steel plate from bending too much, and under the action of the air supply mechanism 33, a certain distance can be formed between the two sides of the thin stainless steel plate and the table surface of the grinding table 12, so that the pushing mechanism 31 can push it conveniently.

[0043] The working mode of a grinder of this embodiment is as follows:

[0044] In the initial state, the grinding system 23 and the pressing system 24 are lifted, and the pushing mechanism 31 is lowered to below the highest position of the grinding table 12, and the thin stainless steel plate is delivered to the grinding table 12 by conveyor conveyance or manual feeding in the existing technology;

[0045] First, the control system controls the pressing cylinders 241 of each group of pressing components of the pressing system 24 to drive the pressing rollers 242 to descend, so that the pressing rollers 242 are pressed against the surface of the thin stainless steel plate, thereby making the thin stainless steel plate fit on the supporting surface of the grinding table 12;

[0046] Subsequently, the control system controls the grinding cylinder 231 of the grinding system 23 to drive the grinding disc 235 to descend to fit the surface of the thin stainless steel plate and form a certain pressure, the beam system drives the grinding disc 235 to move from the first side of the grinding table 12 to the second side along the axial direction of the beam system to complete one grinding, the gantry track system 21 drives the gantry 22 to move to the next grinding position, the beam system drives the grinding disc 235 to move from the second side of the grinding table 12 to the first side along the axial direction of the beam system to complete the second grinding, and the above actions are repeated until the entire width of the thin stainless steel plate is polished;

[0047] Then, the control system controls the grinding cylinder 231 of the grinding system 23 to drive the grinding disc 235 to lift up, and then controls the pressing cylinders 241 of each group of pressing components of the pressing system 24 to drive the pressing roller 242 to lift up. At this time, the thin stainless steel plate recovers its shape to a certain extent.

[0048] Then, the control system controls the air supply mechanism 33 to blow high-pressure air from the air supply disk 331 to the thin stainless steel plate to assist the thin stainless steel plate in restoring its shape, so that the thin stainless steel plate is lifted off the polishing table 12 in the corresponding area of ​​the air supply disk 331, while the highest position of the polishing table 12 still supports the thin stainless steel plate;

[0049] Finally, the control system controls the lifting cylinder 311 of the pushing mechanism 31 to drive the push plate 315 to rise until its center line in the height direction is flush with the highest position of the grinding table 12, and controls the pushing cylinder 314 to drive the push plate 315 to be pushed out. Since the friction between the thin stainless steel plate and the grinding table 12 is relatively small due to the high-pressure gas suspension, the thin stainless steel plate can be easily pushed to the unloading conveyor line 32, and then sent to the next process by the unloading conveyor line 32.

[0050] The above description is intended to be illustrative and not limiting. Upon reading the above description, many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the applicant has not considered the subject matter to be part of the disclosed application subject matter.

Claims

1. A grinding machine, characterized in that: It comprises a workbench (1), a grinding device (2) and a feeding device (3); The workbench (1) comprises a base (11) and a grinding table (12) arranged on the base (11); the grinding table (12) has an axis (13); the table top of the grinding table (12) is in an arch shape with a high middle and low sides, with the axis (13) as the center; and an assembly through hole (14) is provided on the grinding table (12) near the side edge; The grinding device (2) comprises a gantry rail system (21) arranged on both sides of the grinding table (12) along the direction of the axis (13), a gantry frame (22) arranged across the workbench (1) and capable of moving along the gantry rail system (21), and a grinding system (23) and a pressing system (24) installed via the gantry frame (22), wherein the grinding system (23) is capable of grinding along the arched surface of the grinding table (12), and the pressing system (24) is capable of providing pressure adapted to the arched surface of the grinding table (12); The unloading device (3) comprises a pushing mechanism (31), a unloading conveying line (32), and an air supply mechanism (33) respectively arranged at two axial ends of the workbench (1), the pushing mechanism (31) comprising two groups, the unloading conveying line (32) having a conveying surface flush with the highest position of the grinding table (12), the air supply mechanism (33) comprising an air supply disk (331) installed in the assembly through hole (14), a bellows (332) connected to the air supply disk (331), and an air path and an air pump configured to supply high-pressure gas in a high-pressure gas source to the bellows (332), the air supply disk (331) having a format shape that is the same as the opening of the assembly through hole (14).

2. The grinding machine according to claim 1, characterized in that: The arch height of the grinding table (12) is 3-10 cm.

3. The grinding machine according to claim 1, characterized in that: The gantry (22) comprises a pair of vertical beams and a horizontal beam system mounted via the pair of vertical beams, the grinding system (23) comprises a slider (231) movably mounted on the horizontal beam system, a grinding cylinder (232) mounted on the bottom surface of the slider (231), a grinding head (234) mounted on the telescopic end of the grinding cylinder (232) via a pivot structure (233), and a grinding disc (235) mounted on the output end of the grinding head (234), wherein the pivot structure (233) allows the grinding disc (235) to swing on a plane perpendicular to the axis (13).

4. The grinding machine according to claim 3, characterized in that: The pivot structure (233) comprises a pivot seat fixedly mounted on the telescopic end of the grinding cylinder (232) and a pivot block mounted on the pivot seat via a pivot shaft, the bottom surface of the pivot block being fixedly connected to the grinding machine head (234); a torsion spring is mounted on the pivot shaft.

5. The grinding machine according to claim 1, characterized in that: The pressing system (24) is arranged in front of the grinding direction of the grinding system (23).

6. The grinding machine according to claim 5, characterized in that: The gantry (22) comprises a pair of vertical beams and a fixed horizontal beam mounted via the pair of vertical beams, the clamping system (24) comprises a plurality of clamping components, the clamping components comprising a clamping cylinder (241) and a clamping roller (242), the clamping cylinder (241) being fixedly mounted on the fixed horizontal beam and having a telescopic end extending below the fixed horizontal beam, and the clamping roller (242) being fixedly mounted on the telescopic end of the clamping cylinder (241).

7. The grinding machine according to claim 1, characterized in that: The polishing table (12) is provided with two rows of assembly through holes (14), and the air supply discs (331) are arranged in a one-to-one correspondence with the assembly through holes (14).

8. The grinding machine according to claim 7, characterized in that: The air supply plate (331) and the bellows box (332) are integrally formed.

9. The grinding machine according to claim 7, characterized in that: The material pushing mechanism (31) is arranged on an axial extension section of the assembly through hole (14) row.

10. The grinding machine according to claim 9, characterized in that: The pushing mechanism (31) comprises a lifting cylinder (311) fixedly arranged on the base (11), a lifting platform (312) installed at the telescopic end of the lifting cylinder (311), a supporting plate (313) vertically extending upward from the rear end of the lifting platform (312), a pushing cylinder (314) installed through the lifting platform (312) and the supporting plate (313), and a pushing plate (315) installed at the telescopic end of the pushing cylinder (314).

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