A floating pressure automatic adjustment grinding head

Abstract

The present invention discloses a novel floating pressure automatic adjustment grinding head, which includes a connecting flange, a first rotating seat, a second rotating seat, a lower pressing plate, a mounting plate and an elastic buffer assembly; the first rotating seat is fixedly connected to the bottom center of the connecting flange, the second rotating seat is fixedly connected to the top center of the lower pressing plate, and the second rotating seat is rotatably connected to the first rotating seat around a horizontal axis; the mounting plate is fixedly connected to the lower surface of the lower pressing plate; the elastic buffer assembly includes a plurality of buffer columns made of elastic materials, and the plurality of buffer columns are arranged at intervals in a ring between the connecting flange and the lower pressing plate, and the upper and lower ends of the buffer columns are respectively fixedly connected to the connecting flange and the lower pressing plate; the present invention has the characteristics of buffering and shock-absorbing the abrasive and being able to bear a large shearing force.

Description

Technical Field

[0001] The present invention relates to the field of stone grinding, and specifically relates to a floating pressure automatic adjustment grinding head. Background Art

[0002] Stone is a building decoration material and is widely used. Before use, the surface of the stone is relatively rough and needs to be polished to achieve a shiny effect. At present, for the grinding head of a stone grinding machine, when the abrasive installed on the mounting plate encounters the uneven surface of the stone, it cannot slightly adjust the angle of the abrasive on the horizontal plane, resulting in the defect of uneven grinding of the stone surface. Most of the existing floating pressure grinding heads use a spring structure for buffer floating. They cannot bear large torques and can only bear small shear forces, and cannot meet the requirements of hard and brittle stone grinding and processing.

[0003] In view of this, the applicant of the present invention has conducted in-depth research on the above-mentioned defects in the prior art, and thus this case has been generated. Summary of the Invention

[0004] The main purpose of the present invention is to provide a floating pressure automatic adjustment grinding head, which has the characteristics of buffering and damping the abrasive and being able to bear large shear forces.

[0005] To achieve the above object, the solution of the present invention is:

[0006] A floating pressure automatic adjustment grinding head includes a connecting flange, a first rotating seat, a second rotating seat, a lower pressing plate, a mounting plate and an elastic buffer assembly; the first rotating seat is fixedly connected to the bottom center of the connecting flange, the second rotating seat is fixedly connected to the top center of the lower pressing plate, and the second rotating seat is rotatably connected to the first rotating seat around a horizontal axis; the mounting plate is fixedly connected to the lower surface of the lower pressing plate; the elastic buffer assembly includes a plurality of buffer columns made of elastic materials, and the plurality of buffer columns are arranged at intervals in a ring between the connecting flange and the lower pressing plate, and the upper and lower ends of the buffer columns are respectively fixedly connected to the connecting flange and the lower pressing plate.

[0007] Further, two fixing holes are formed on the second rotating seat and are arranged coaxially horizontally, two socket head cap screws are connected to the first rotating seat and are arranged coaxially horizontally, and the socket heads of the socket head cap screws are in clearance fit with the fixing holes, and the socket heads of the two socket head cap screws are respectively rotatably connected in the fixing holes.

[0008] Further, the first rotating seat is detachably connected to the connecting flange, and the second rotating seat is detachably connected to the lower pressing plate.

[0009] Further, the first rotating seat is connected to the connecting flange by a first fixing screw, and the second rotating seat is connected to the pressing disc by a second fixing screw.

[0010] Further, the buffer column includes a column body, and a first locking block and a second locking block embedded at the upper and lower ends of the column body respectively. The upper end of the first locking block is flush with the upper end of the column body, and the lower end of the second locking block is flush with the lower end of the column body. A buffer space formed of an elastic material is formed between the first locking block and the second locking block; threaded holes are respectively formed on the first locking block and the second locking block, and the connecting flange and the pressing disc are respectively fixedly connected to the threaded holes on the first locking block and the second locking block through fixing members. The upper surface of the first locking block abuts against the lower surface of the connecting flange, and the lower surface of the second locking block abuts against the upper surface of the pressing disc.

[0011] Further, the column body of the buffer column is made of rubber material, and the locking blocks are made of metal material.

[0012] Further, the buffer column is cylindrical or prismatic.

[0013] Further, both the first locking block and the second locking block are rotating bodies with an I-shaped cross-section.

[0014] Further, both the first locking block and the second locking block are rotating bodies with a T-shaped cross-section. The large ends of the first locking block and the second locking block are located inside the column body, and the end faces of the small ends of the first locking block and the second locking block are flush with the upper and lower ends of the column body respectively. The large ends of the first locking block and the second locking block being located inside the column body ensures the connection strength.

[0015] After adopting the above structure, a floating pressure automatic adjustment grinding head according to the present invention has at least the following beneficial effects:

[0016] First, the first rotating seat and the second rotating seat are arranged between the connecting flange and the pressing disc, so as to transfer the rotation of the connecting flange to the pressing disc, and further drive the grinding disc and the abrasive on the grinding disc to rotate. By arranging the first rotating seat and the second rotating seat, the pressing disc and the grinding disc can bear greater shear force, so as to ensure that the grinding head meets the requirements of grinding hard and brittle stones.

[0017] Second, the buffer columns are arranged at intervals in a ring between the connecting flange and the pressing disc, and the second rotating seat is rotatably connected to the first rotating seat around a horizontal axis. In this way, when the grinding disc grinds the uneven stone surface, the pressing disc and the abrasive mounting disc can swing freely relative to the connecting flange, and the buffer columns play a role in buffering and shock absorption.

[0018] III. Since the locking blocks in the buffer posts are respectively abutted against the lower surface of the connecting flange and the upper surface of the lower pressing plate through fixing members, and there is no elastic material between the locking blocks and the connecting flange or the lower pressing plate, the connection between the locking blocks and the connecting flange and the lower pressing plate can be made more firm, avoiding the loosening of the locking blocks caused by the compression of the buffer posts during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a front view structural schematic diagram of a floating pressure automatic adjustment grinding head according to the present invention.

[0020] Figure 2 of the present invention Figure 1 sectional structural schematic diagram taken along A-A.

[0021] Figure 3 FIG. 3 is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 4 FIG. 4 is a three-dimensional structural schematic diagram of another angle of the present invention.

[0023] In the figures: connecting flange 1; hexagon bolt 11; first rotating seat 2; socket head cap screw 21; first fixing screw 22; second rotating seat 3; fixing hole 31; second fixing screw 32; lower pressing plate 4; hexagon socket head cap screw 41; elastic buffer assembly 5; buffer post 51; column body 511; first locking block 512; second locking block 513; mounting plate 6; countersunk head screw 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0025] Such as Figures 1 to 4As shown in the figure, the present invention relates to a floating pressure automatic adjustment grinding head, which includes a connecting flange 1, a first rotating seat 2, a second rotating seat 3, a lower pressing plate 4, a mounting plate 6 and an elastic buffer assembly 5; the first rotating seat 2 is fixedly connected to the bottom center of the connecting flange 1, the second rotating seat 3 is fixedly connected to the top center of the lower pressing plate 4, and the second rotating seat 3 is rotatably connected to the first rotating seat 2 around a horizontal axis; the mounting plate 6 is fixedly connected to the lower surface of the lower pressing plate 4; the elastic buffer assembly 5 includes a plurality of buffer columns 51 made of elastic materials, and the plurality of buffer columns 51 are arranged at intervals in a ring between the connecting flange 1 and the lower pressing plate 4, and the upper and lower ends of the buffer columns 51 are respectively fixedly connected to the connecting flange 1 and the lower pressing plate 4. Three U-shaped grooves and an axial through hole are provided on the upper surface of the connecting flange 1, and the three U-shaped grooves and the axial through hole are fixedly connected to the driving device for driving the connecting flange 1 through a connecting member. Two U-shaped grooves are provided on the lower pressing plate 4, and the mounting plate 6 has two corresponding counterbore holes, and the lower pressing plate 4 and the mounting plate 6 are connected by fixing counterbore screws 7.

[0026] The first rotating seat 2 and the second rotating seat 3 are arranged between the connecting flange 1 and the lower pressing plate 4, so as to transfer the rotation of the connecting flange 1 to the lower pressing plate 4, and then drive the abrasive on the mounting plate 6 and the mounting plate 6 to rotate. By arranging the first rotating seat 2 and the second rotating seat 3, the lower pressing plate 4 and the mounting plate 6 can bear greater shear force, so as to ensure that the grinding head meets the requirements of grinding hard and brittle stones.

[0027] Preferably, two fixing holes 31 arranged horizontally and coaxially are formed on the second rotating seat 3, two socket head cap screws 21 arranged horizontally and coaxially are connected to the first rotating seat 2, the cylindrical heads of the socket head cap screws 21 are in clearance fit with the fixing holes 31, and the cylindrical heads of the two socket head cap screws 21 are respectively rotatably connected in the fixing holes 31. Limit holes corresponding to the two fixing holes 31 of the second rotating seat 3 are provided on the side wall of the first rotating seat 2; the first rotating seat 2 is sleeved in the second rotating seat 3, the limit holes of the first rotating seat 2 correspond to the fixing holes 31 of the second rotating seat 3 one by one, and the socket head cap screws 21 are threadedly connected to the limit holes on the first rotating seat, realizing the rotational connection between the first rotating seat 2 and the second rotating seat 3.

[0028] Preferably, the first rotating seat 2 is detachably connected to the connecting flange 1, and the second rotating seat 3 is detachably connected to the lower pressing plate 4. A boss is provided on the upper surface of the first rotating seat 2, and the boss is embedded in the axial through hole of the connecting flange 1 to limit the horizontal displacement of the first rotating seat 2. The first rotating seat 2 and the connecting flange 1 are connected by a first fixing screw 22 to limit the axial displacement of the first rotating seat 2; there is a groove on the upper surface of the mounting plate 6, and the lower surface of the second rotating seat 3 is embedded in the groove to limit the horizontal displacement of the second rotating seat 3. The second rotating seat 3 and the lower pressing plate 4 are connected by a second fixing screw 32 to limit the axial displacement of the second rotating seat 3.

[0029] Preferably, the buffer column 51 includes a column body 511 and first locking blocks 512 and second locking blocks 513 embedded at the upper and lower ends of the column body 511. The upper end of the first locking block 512 is flush with the upper end of the column body 511, and the lower end of the second locking block 513 is flush with the lower end of the column body 511. A buffer space made of an elastic material is formed between the first locking block 512 and the second locking block 513; threaded holes are respectively formed on the first locking block 512 and the second locking block 513, and the connecting flange 1 and the lower pressing plate 4 are respectively fixedly connected to the threaded holes on the first locking block 512 and the second locking block 513 through fixing members. The upper surface of the first locking block 512 abuts against the lower surface of the connecting flange 1, and the lower surface of the second locking block 513 abuts against the upper surface of the lower pressing plate 4.

[0030] As a preferred embodiment of the present invention, through holes are formed on the surfaces of the connecting flange 1 and the lower pressing plate 4 in contact with the buffer column 51 and correspond one by one to the threaded holes of the first locking block 512 and the second locking block 513 of the buffer column 51. The buffer column 51 is located between the connecting flange 1 and the lower pressing plate 4. The through hole of the connecting flange 1 and the threaded hole of the first locking block 512 are threadedly connected by a hexagon bolt 11, and the through hole of the lower pressing plate 4 and the threaded hole of the second locking block 513 are threadedly connected by an internal hexagon socket head cap screw 41. Moreover, the head of the internal hexagon socket head cap screw 41 is embedded in the through hole of the lower pressing plate 4, so that the lower pressing plate 4 can be attached to the surface of the mounting plate 6.

[0031] The buffer columns 51 are annularly and spacedly arranged between the connecting flange 1 and the lower pressing plate 4, and the second rotating seat 3 is rotatably connected to the first rotating seat 2 around a horizontal axis. In this way, when the grinding disc grinds the uneven stone surface, the lower pressing plate 4 and the abrasive mounting plate 6 can freely swing relative to the connecting flange 1, and the buffer columns 51 play a role in buffering and shock absorption.

[0032] Since the locking block in the buffer column 51 is respectively pressed against the lower surface of the connecting flange 1 and the upper surface of the lower pressure plate 4 through fixing parts, there is no elastic material between the locking block and the connecting flange 1 or the lower pressure plate 4, so that the locking block can be more tightly connected to the connecting flange 1 and the lower pressure plate 4, thereby preventing the locking block from loosening due to compression of the buffer column 51 during grinding.

[0033] As a preferred embodiment of the invention, the column 511 is made of an elastic material having good elastic deformation ability. In the present embodiment, the elastic material is rubber. The column 511 may be cylindrical or prismatic, such as a hexagonal prism or an octagonal prism. The locking block material is carbon steel, stainless steel or copper, because the metal material has good rigidity and hardness, which enables the column 511 to be better fixedly connected to the connecting flange 1 and the lower pressure plate 4. The first locking block 512 and the second locking block 513 are set to be an I-shaped rotating body in cross section, because the I-shaped rotating body locking block is wide at the top and bottom and narrow in the middle, which can better connect the locking block to the column 511, and can be used for a long time to prevent the locking block from falling off the column 511.

[0034] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A floating pressure automatic adjusting grinding head, characterized in that, It includes a connecting flange, a first rotating seat, a second rotating seat, a lower pressing plate, a mounting plate and an elastic buffer assembly; the first rotating seat is fixedly connected to the center of the bottom of the connecting flange, the second rotating seat is fixedly connected to the center of the top of the lower pressing plate, and the second rotating seat is rotatably connected to the first rotating seat around a horizontal axis; the mounting plate is fixedly connected to the lower surface of the lower pressing plate; the elastic buffer assembly includes a plurality of buffer columns made of elastic materials, and the plurality of buffer columns are arranged at intervals in a ring between the connecting flange and the lower pressing plate, and the upper and lower ends of the buffer columns are respectively fixedly connected to the connecting flange and the lower pressing plate; Two fixing holes are formed on the second rotating seat and arranged coaxially horizontally, two socket head cap screws are connected to the first rotating seat and arranged coaxially horizontally, the cylindrical heads of the socket head cap screws are in clearance fit with the fixing holes, and the cylindrical heads of the two socket head cap screws are respectively rotatably connected in the fixing holes; limiting holes corresponding to the two fixing holes of the second rotating seat are provided on the side wall of the first rotating seat; the first rotating seat is sleeved in the second rotating seat, the limiting holes of the first rotating seat correspond to the fixing holes of the second rotating seat one by one, and the socket head cap screws are threadedly connected to the limiting holes on the first rotating seat; a boss is provided on the upper surface of the first rotating seat, and the boss is embedded in the axial through hole of the connecting flange to limit the horizontal displacement of the first rotating seat, and there is a groove on the upper surface of the mounting plate, and the lower surface of the second rotating seat is embedded in the groove to limit the horizontal displacement of the second rotating seat; The buffer column includes a column body and a first locking block and a second locking block embedded at the upper and lower ends in the column body. The upper end of the first locking block is flush with the upper end of the column body, and the lower end of the second locking block is flush with the lower end of the column body. A buffer space formed of an elastic material is formed between the first locking block and the second locking block; threaded holes are respectively formed on the first locking block and the second locking block, and the connecting flange and the lower pressing plate are respectively fixedly connected to the threaded holes on the first locking block and the second locking block through fixing parts. The upper surface of the first locking block abuts against the lower surface of the connecting flange, and the lower surface of the second locking block abuts against the upper surface of the lower pressing plate; the column body of the buffer column is made of rubber material, and the locking block is made of metal material.

2. The floating pressure automatic adjustment grinding head according to claim 1, wherein The first rotating seat is detachably connected to the connecting flange, and the second rotating seat is detachably connected to the lower pressing plate.

3. The floating pressure automatic adjustment grinding head according to claim 2, wherein, The first rotating seat is connected to the connecting flange through a first fixing screw, and the second rotating seat is connected to the lower pressing plate through a second fixing screw.

4. The floating pressure automatic regulating grinding head according to claim 1, characterized in that, The buffer column is cylindrical or prismatic.

5. The floating pressure automatic adjusting grinding head according to claim 1, wherein Both the first locking block and the second locking block are rotating bodies with an I-shaped cross section.

6. The floating pressure automatic adjusting grinding head according to claim 1, wherein, Both the first locking block and the second locking block are rotating bodies with a T-shaped cross section. The large ends of the first locking block and the second locking block are located in the column body, and the end faces of the small ends of the first locking block and the second locking block are respectively flush with the upper and lower ends of the column body.

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