CN221435889U - Polishing device and working head for polishing - Google Patents

Abstract

The application discloses a polishing device and a working head for polishing; the polishing device comprises: the polishing assembly and the rotary fixing assembly can move relatively; the polishing assembly comprises a working head, a polishing machine and a polishing machine support, wherein the working head is connected with one end of the polishing machine, the polishing machine is connected with the polishing machine support, and one end of the polishing machine can rotate around the joint of the polishing machine support and the polishing machine; the rotary fixing assembly is used for fixing the pipeline to be polished and realizing the rotation of the pipeline to be polished in the polishing process. By the polishing device, the working head is abutted against the curved outer wall of the rotary workpiece to be polished to achieve polishing, so that standard pipelines/rods or nonstandard pipelines/rods such as pipelines/rods with nonstandard circular cross sections or elliptic pipelines/rods or oval pipelines/rods or the like can be compatible, and even curved pipelines/rods and special pipelines/rods can be polished, and polishing smoothness can be improved.

Description

Polishing device and working head for polishing

Technical Field

The application belongs to the field of polishing, and particularly relates to a polishing device and a polishing working head.

Background

Different industrial scenes can use different pipelines or rods, such as silicon carbide tubes, silicon carbide rods, graphite tubes, graphite rods, various ceramic tubes, wear-resistant tubes and refractory material tubes of various materials, metal tube rods, microcrystalline tubes and the like, and the ceramic tube is widely applied to industrial scenes such as various kilns, transmission equipment, mine coal mines, wear-resistant tubes and the like. However, the produced pipeline and rod-shaped objects are polished, the outer wall of the pipeline and rod-shaped objects can be made into qualified products after being polished smoothly, the pipeline and rod-shaped objects can be better applied, polishing marks are easy to remain on the pipeline body in the existing polishing mode, the polishing smoothness degree does not meet the requirements, and the pipeline and rod-shaped objects produced by the existing production process have partial cross sections which are not standard circles, so that the difficulty is increased for polishing. And the automatic polishing device is also provided with a plurality of bending pieces and special-shaped pieces, such as L-shaped pieces, U-shaped pieces and S-shaped pieces, and the outer wall of the S-shaped pieces is polished temporarily without using an automatic polishing device.

Disclosure of utility model

The application aims to provide a polishing device and a polishing working head, which can solve the problems that polishing smoothness is poor, polishing marks remain on the curved outer wall of a piece to be polished, and the polishing device cannot be compatible with polishing of non-standard pipes/rods, bent pipes/rods and special pipes/rods in the prior art.

In order to solve the technical problems, the application is realized as follows:

In a first aspect, the present application provides a grinding apparatus comprising: the polishing assembly and the rotary fixing assembly can move relatively.

The polishing assembly comprises a working head, a polishing machine and a polishing machine support, wherein the working head is connected with one end of the polishing machine, the polishing machine is connected with the polishing machine support, one end of the polishing machine can rotate around a joint of the polishing machine support and the polishing machine, namely the working head connected with one end of the polishing machine can rotate around the joint of the polishing machine support and the polishing machine; in the working process, the working head abuts against the curved outer wall of the workpiece to be polished. The working head can rotate around the joint of the polishing machine support and the polishing machine to realize that the polishing surface of the working head is always stable and tangent with the curved outer wall of the workpiece to be polished, so that stable contact is formed, the self rotation of the working head realizes that the abrasion state of the polishing surface of the working head is relatively consistent, and the polishing of the curved outer wall of the workpiece to be polished is smooth. Even a pipe/bar with a certain curvature can find a suitable angle to achieve a stable contact, forming a line-to-line or line-to-face contact, thereby achieving a sanding of the curvature.

The rotary fixing assembly is used for fixing the workpiece to be polished and realizing the rotation of the workpiece to be polished in the polishing process.

The relative movement of the sharpening assembly and the rotating fixture assembly may be referred to in several forms: one form can be that the polishing component can move along the direction parallel to the tangent plane of the curved outer wall of the workpiece to be polished in the working process, the rotation fixing component does not have displacement and only drives the pipeline to rotate, and the polishing path is realized to cover the curved outer wall of the workpiece to be polished through the movement of the polishing component and the rotation of the pipeline; one form can be that the rotary fixing component can move along the direction parallel to the tangent plane of the curved outer wall of the workpiece to be polished in the working process and drive the pipeline to rotate, and the polishing path is realized to cover the curved outer wall of the workpiece to be polished through the movement of the rotary fixing component and the rotation of the pipeline; one form can be polishing subassembly and rotatory fixed subassembly can be along the direction parallel with the curved outer wall tangent plane of piece that waits to polish in the course of the work, and rotatory fixed subassembly can drive the pipeline rotation, realizes polishing the route and covers the curved outer wall of piece that waits to polish through adjusting polishing subassembly and rotatory fixed subassembly velocity of movement cooperation pipeline rotation.

Optionally, the work head includes fixed bowl and annular polishing piece, annular polishing piece connects at fixed bowl outward flange, and fixed bowl bottom and buffing machine one end are connected. The annular polishing piece butt is waited to polish curved surface form outer wall, in the process of polishing, along with polishing progress, annular polishing piece disappears because of wearing and tearing, if for the cake form polishing piece, then in the process of polishing, the abrasive material at edge disappears because of wearing and tearing, the abrasive material thickness at center is unchangeable, the abrasive material edge is attenuate gradually, abrasive material edge and center abrasive material produce the difference in height, so polishing piece contact wait to polish curved surface form outer wall, the position of contact can polish the piece and produce the step effect along with wearing and tearing height, contact position unevenness leads to waiting to polish curved surface form outer wall of piece after polishing uneven, produce the trace of polishing, select annular polishing piece to avoid this problem well. Optionally, the annular polishing member has a diameter of 8-15 cm and/or a width of 0.8-1.5 cm.

Optionally, the rotation fixed subassembly includes main shaft subassembly and top subassembly, main shaft subassembly includes first drive arrangement, shaft coupling, bearing frame, first transmission shaft, first mounting, top subassembly includes top support, transmission shaft support frame, second transmission shaft, second mounting, first mounting with the piece of waiting to polish is held between the second mounting and is rotated along with waiting to polish. The first fixing member and the second fixing member may be the same, for example, both are nylon sleeves, for example, both are clamping members; it may be different, for example one for the clamping member and one for the nylon sleeve. The nylon sleeve can be sleeved by the end part of the pipeline in the same shape as the drawing, and can also be a concave structure matched with the end part of the pipeline or the rod-shaped object, and the nylon sleeve is used for accommodating the end part of the workpiece to be polished and realizing limit. The clamping piece can be an annular piece matched with the outer wall of the pipeline or the rod-shaped object, and can be clamped on the outer wall of the piece to be polished to realize fixation and drive the piece to rotate. The first fixing piece and the second fixing piece can be in other shapes, and the end part of the piece to be polished can be fixed.

Optionally, the top subassembly still includes cylinder, connecting piece and adapter sleeve, the adapter sleeve is located cylinder one end, with second transmission shaft one end is connected, and the cylinder other end passes through the connecting piece and is connected to top support.

Optionally, the buffing machine support includes workstation bottom plate, a plurality of support piece, buffing machine bracket, cylinder from bottom to top, the buffing machine is connected on the buffing machine bracket, the one end rotatable coupling of buffing machine bracket in support piece, the other end of buffing machine bracket can wind the buffing machine bracket with support piece junction rotates, the cylinder with support piece connects.

Optionally, the polishing machine support further comprises a spring fixing shaft and a return spring, the spring fixing shaft is connected with the other end of the polishing machine support, one end of the return spring is connected to the spring fixing shaft, and the other end of the return spring is connected with the supporting piece.

Optionally, the polishing device further includes a base, a guide rail is provided on the base, the polishing machine support and/or the rotation fixing component is connected with the guide rail, and the polishing machine support and/or the rotation fixing component can slide along the guide rail.

Optionally, the polishing device further comprises a fixing component for fixing the polishing machine support and/or the rotary fixing component.

The second aspect provides a work head for polishing, the work head includes fixed bowl and annular polishing piece, and annular polishing piece connects at fixed bowl outward flange.

In the embodiment of the application, the polishing device can be used for polishing by abutting and rotating the curved outer wall of the workpiece to be polished by using the working head, and can be compatible with polishing of standard pipelines/rods or nonstandard pipelines/rods, such as pipelines/rods with nonstandard circular cross sections, elliptic pipelines/rods, oval pipelines/rods or the like, even polishing of curved pipelines/rods and special-shaped (such as L-shaped, V-shaped, U-shaped, M-shaped, 3-shaped, S-shaped and the like) pipelines/rods, and can be helpful for improving polishing smoothness.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded view of a grinding apparatus according to an embodiment of the application;

FIG. 2 is a schematic view of a sanding assembly of a sanding device in accordance with an embodiment of the present application;

FIG. 3 is a schematic view of a second sanding assembly of a sanding apparatus in accordance with an embodiment of the present application;

FIG. 4 is a schematic view of a spindle assembly of a grinding apparatus according to an embodiment of the application;

FIG. 5 is an exploded view of a spindle assembly of a grinding apparatus in accordance with an embodiment of the present application;

fig. 6 is a schematic view of a tip assembly of a grinding apparatus according to an embodiment of the application;

Fig. 7 is an exploded view of a tip assembly of a grinding apparatus in accordance with an embodiment of the application;

FIG. 8 is a schematic view of a grinder and work head according to an embodiment of the present application;

fig. 9 is a schematic diagram of a working head according to an embodiment of the application.

Reference numerals:

1: a working head; 11: fixing the bowl; 12: an annular polishing member; 2: polishing machine; 3: a grinder support; 31: a workbench bottom plate; 32: a support; 33: a grinder bracket; 34: a first cylinder; 35: a cylinder support plate; 36: a return spring; 37: a spring fixing shaft; 4: a spindle assembly; 41: a first driving device; 42: a coupling; 43: a bearing seat; 44: a first drive shaft; 45: a first nylon sleeve; 5: a tip assembly; 51: a tip holder; 52: a drive shaft support; 53: a second drive shaft; 54: a second nylon sleeve; 55: a second cylinder; 56: connecting sleeves; 57: a connecting piece; 6: a base; 61: a guide rail; 62: a wheel assembly; 63: a second driving device; 64: a spindle slider; 65: and a center slide block.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "first", "second" and the like in the description and in the claims may include one or more of such features, either explicitly or implicitly. In the description of the present application, unless otherwise indicated, the meaning of "plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally indicates that the associated object is a "or" relationship.

In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "Zhou Xiang, etc., are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplify description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be connected, for example, as well as removably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

It should be noted that the polishing device in the embodiment of the present application may also be used for polishing other pipelines requiring polishing. The embodiment of the present application is described by taking a workpiece as an example of a microcrystalline tube, and when the workpiece is another substrate, the embodiment of the present application may be executed with reference to the embodiment, and will not be described herein.

The polishing device and the working head provided by the embodiment of the application are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Example 1: the present embodiment is described with respect to a polishing member as a pipe

Specifically, grinding device includes polishing subassembly and rotatory fixed subassembly in this embodiment, polishing subassembly includes work head 1, buffing machine 2, buffing machine support 3, in the course of the work, the one side butt that work head 1 deviates from the buffing machine is waited to polish the pipeline outer wall.

The polishing machine support 3 comprises a workbench bottom plate 31, a plurality of supporting pieces 32, a polishing machine bracket 33 and a first cylinder 34 from bottom to top. The polishing machine 2 is connected to the polishing machine bracket 33, the polishing machine bracket 33 may be plate-shaped or groove-shaped, and an optional connection mode of the polishing machine 2 and the polishing machine bracket 33 is that a fixing hole is formed on the plate-shaped polishing machine bracket 33 or on a bottom plate of the groove-shaped polishing machine bracket 33, a protrusion matched with the fixing hole is arranged on the polishing machine 2, and the polishing machine is connected through tight clamping, or a hole for a screw or a bolt to pass through is arranged on the protrusion, so that the polishing machine and the bracket are fixed through the screw or the bolt. The support 32 may be a plurality of posts, in this embodiment 6L-shaped posts, with one end of the grinder bracket 33 rotatably connected to a first post and a second post in the support. The plate-shaped polishing machine bracket 33 can be rotatably connected by arranging a rotary connecting shaft under the plate, and two ends of the rotary connecting shaft respectively penetrate through the first upright post and the second upright post; the groove-shaped polishing machine bracket 33 can be rotatably connected by arranging rotary connecting shafts on the vertical plates on two sides respectively, wherein one end of each rotary connecting shaft penetrates through the vertical plate of the bracket, and the other end of each rotary connecting shaft penetrates through the first upright post and the second upright post respectively. The other end of the grinder rest 33 is rotatable about the connection between the grinder rest 33 and the support 32. The first cylinder 34 is connected to the support 32, and the first cylinder 34 and the support 32 may be stably connected by screwing the first cylinder 34 to a cylinder support plate 35 installed between the third and fifth columns and between the fourth and sixth columns, or the cylinder may be directly screwed to the support 32 in other embodiments.

In other embodiments, the support 32 may be other shapes, such as may be a pair of approximately "m" shaped workpieces, such as may be a pair of approximately "n" shaped workpieces.

In the non-working state, the piston rod of the first cylinder 34 is pressed against the other end of the polishing machine bracket 33, the other end of the polishing machine bracket 33 is lowered, and one end of the polishing machine bracket 33 is raised, so that the working head 1 is in a horizontal or upturned state and is separated from a pipeline to be polished. Under the working condition, the piston rod of the first air cylinder 34 is retracted, one end of the polishing machine bracket 33 is lowered, the other end of the polishing machine bracket 33 is raised, the working head 1 is enabled to sink and contact the pipe wall of the pipe to be polished, and the working head rotates to polish.

In other embodiments the grinder rest 3 further comprises a return spring 36 and a spring fixing shaft 37, said spring fixing shaft 37 being connected to the other end of the grinder rest 33, said return spring 36 being connected to the spring fixing shaft 37 at one end, said return spring 36 being connected to the other end and to the gas steel support plate 35, in other embodiments. The other end of the return spring 36 may be connected to a support member. In the non-working state, the piston rod of the first cylinder 34 is pressed against the other end of the polishing machine bracket 33, the other end of the polishing machine bracket 33 is lowered, the reset spring 36 is tensioned, and one end of the polishing machine bracket 33 is lifted, so that the working head 1 is in a horizontal or upturned state and is separated from a pipeline to be polished. In the working state, the piston rod of the first cylinder 34 is retracted, one end of the polishing machine bracket 33 is retracted, the reset spring 36 is retracted to provide a pulling force, and the other end of the polishing machine bracket 33 is lifted, so that the working head 1 is retracted to be in contact with the pipe wall of the pipe to be polished, and the working head rotates to polish.

In this embodiment, the working head 1 includes a fixed bowl 11 and an annular polishing member 12, the annular polishing member 12 is connected to the outer edge of the fixed bowl 11, and the bottom of the fixed bowl 11 is connected to one end of the polishing machine 2. The annular polishing piece 12 can be clamped or adhered to the fixed bowl 11, a screw hole is formed in the bottom of the fixed bowl 11, and one end of the polishing machine 2 can be connected with the screw. The annular polishing piece 12 butt is waited to polish the pipeline outer wall, the annular polishing piece 12 keep away from the one side of buffing machine 2 and wait to polish the pipe wall tangent, annular polishing piece 12 and wait to polish the pipe wall tangent plane in this embodiment be the plane, realized that the line is tangent with the face, it is different with the grinding form polishing piece that relatively adopts in the prior art, grinding form polishing piece and pipe wall tangent department are linear, the line corresponds with the line, when pipeline cross-section is nonstandard circular, the piece of polishing is not good with the pipe wall laminating degree, the laminating is not inseparable will lead to polishing the face unevenness, it is not smooth to polish, the effect of polishing is poor. In the polishing process, along with the polishing progress, the annular polishing piece 12 disappears due to abrasion, the disappearing speeds of all parts of the annular polishing piece are consistent, step-shaped abrasive residues cannot be generated, and the polishing piece and the pipe wall laminating degree can be maintained in a good state until the polishing piece abrasive is consumed. The side of the annular grinding member 12 facing the pipe to be ground is planar, its diameter being 10 cm in this embodiment, and its annular abrasive width being 1 cm in this embodiment. In other embodiments, the annular grinding member 12 may be selected according to the pipe diameter specifications, e.g., it may also be 15 cm in diameter and the annular abrasive width 1.5 cm.

The rotary fixing assembly is used for fixing the pipeline to be polished and realizing the rotation of the pipeline to be polished in the polishing process. The rotary fixing assembly comprises a main shaft assembly 4 and a tip assembly 5, the main shaft assembly 4 comprises a first driving device 41, a coupler 42, a bearing seat 43, a first transmission shaft 44 and a first nylon sleeve 45, and the tip assembly 5 comprises a tip bracket 51, a transmission shaft supporting frame 52, a second transmission shaft 53 and a second nylon sleeve 54. The first transmission shaft 44 passes through the bearing seat 43, is connected with the first driving device 41 through the coupler 42, and can realize the rotation of the first transmission shaft 44 through the first driving device 41, thereby driving the first nylon sleeve 45 sleeved at one end of the first transmission shaft 44 to rotate. One end of the second transmission shaft 53 is stably connected with the tip holder 51, for example, the second transmission shaft 53 can be fixed by a screw, the other end of the second transmission shaft passes through the adjusting transmission shaft supporting frame 52, the other end of the second transmission shaft 53 is sleeved with the second nylon sleeve 54, and the second nylon sleeve 54 is rotatably connected with the other end of the second transmission shaft 53. The pipe to be polished is clamped between the first nylon sleeve 45 and the second nylon sleeve 54 of the center assembly 5 by adjusting the distance between the first nylon sleeve 45 of the spindle assembly 4 and the second nylon sleeve 54, the pipe to be polished is rotated by supplying power to the spindle assembly 4, and the second nylon sleeve 54 rotates along with the pipe to be polished.

In other embodiments, the center assembly further includes a second cylinder 55, a connecting piece 57, and a connecting sleeve 56, where the connecting sleeve 56 is located at one end of the second cylinder 55 and connected to one end of the second transmission shaft 53, one end of the connecting sleeve 56 may be sleeved on the end of the piston rod of the second cylinder 55, the other end of the connecting sleeve 56 may abut against one end of the second transmission shaft 53 to achieve connection, or the other end of the connecting sleeve 56 may be sleeved on one end of the second transmission shaft 53 to achieve connection. The other end of the second cylinder 55 is stably connected with the tip holder 51 through a connecting piece 57, for example, the tip holder can be fixed by abutting or screw, the other end of the second transmission shaft 53 passes through the adjusting transmission shaft supporting frame 52, the other end of the second transmission shaft 53 is sleeved with a second nylon sleeve 54, and the second nylon sleeve 54 is rotatably connected with the other end of the second transmission shaft 53. During operation, the pipeline to be polished is clamped between the first nylon sleeve 45 and the second nylon sleeve 54 of the center assembly 5 by adjusting the interval between the first nylon sleeve 45 of the main shaft assembly 4 and the second nylon sleeve 54, and then the piston of the second cylinder 55 is adjusted so that the connecting sleeve further pushes the second transmission shaft 53 to further squeeze the pipeline to be polished.

In other embodiments, the polishing device further comprises a base 6, the base 6 is provided with a pair of guide rails 61, a wheel assembly 62 matched with the guide rails is arranged below the workbench bottom plate 31 of the polishing machine support 3, the base 6 is further provided with a second driving device 63, and the second driving device 63 can drive the workbench bottom plate 31 of the polishing machine support 3 to slide on the guide rails 61 through the wheel assembly 62. The spindle assembly 4 further comprises a spindle slide 64, the first drive 41 and/or the bearing block 43 being detachably connected to the spindle slide 64, the spindle slide 64 being slidable on the guide rail 61; the tip assembly 5 further comprises a tip slide 65, the tip holder 51 and/or the drive shaft support 52 being detachably connected to the tip slide 65, the tip slide 65 being slidable on the guide rail 61. The polishing device further comprises a fixing component, wherein after the pipeline to be polished is clamped between the first nylon sleeve 45 and the second nylon sleeve 54, the main shaft sliding block 64 and the center sliding block 65 are fixed on the guide rail by the fixing component, so that the main shaft sliding block and the center sliding block are not displaced any more, the polishing component is driven to move by the second driving device 63, and therefore the relative movement of the polishing component and the rotary fixing component is achieved, and the polishing path is guaranteed to cover the whole pipe wall by the rotary cooperation of the pipeline.

In other embodiments, the polishing device further comprises a base 6, the base 6 is provided with a pair of guide rails 61, a wheel-shaped assembly 62 matched with the guide rails is arranged below the workbench bottom plate 31 of the polishing machine support 3, the wheel-shaped assembly 62 comprises a connecting device connected with the workbench bottom plate 31 and a plurality of groups of wheels slidingly connected with the guide rails, the base 6 is further provided with a second driving device 63, and the second driving device 63 can drive the workbench bottom plate 31 of the polishing machine support 3 to slide on the guide rails 61 through the wheel-shaped assembly 62. The spindle assembly 4 and the center assembly 5 can be connected to the base 6 in a sliding manner, the spindle assembly 4 and the center assembly 5 are clamped and fixed after being adjusted to a proper position when a pipeline to be polished is installed, displacement is avoided, the polishing assembly is driven to move through the second driving device 63, and accordingly relative movement of the polishing assembly and the rotating and fixing assembly is achieved, and the pipeline is matched with rotation to ensure that a polishing path covers the whole pipe wall.

In other embodiments, the polishing device further comprises a base 6, the base 6 has a pair of guide rails 61 thereon, the spindle assembly 4 further comprises a spindle slider 64, the first driving device 41 and/or the bearing seat 43 are detachably connected to the spindle slider 64, and the spindle slider 64 can slide on the guide rails 61; the tip assembly 5 further comprises a tip slide 65, the tip holder 51 and/or the drive shaft support 52 being detachably connected to the tip slide 65, the tip slide 65 being slidable on the guide rail 61. The polishing device further comprises a third driving device, which is used for driving the main shaft sliding block 64 and the center sliding block 65 to slide on the guide rail so as to drive the pipeline to be polished to move. The polishing machine support 3 is fixedly connected to the base 6, and the pipeline to be polished is driven to move parallel to the guide rail, so that the relative movement of the polishing assembly and the rotary fixing assembly is realized, and the polishing path is ensured to cover the whole pipe wall through the rotary matching of the polishing assembly and the pipeline.

In other embodiments, a polishing work head is provided that includes a stationary bowl and an annular polishing member coupled to an outer edge of the stationary bowl. The annular polishing piece is provided with a polishing groove, and the diameter of the annular polishing piece and the width of the annular polishing piece are selected according to the diameter of the pipeline; if the diameter is 10cm in the embodiment, the annular abrasive width is 1cm in the embodiment, and the effect is better for the diameter of the pipeline to be polished to be 10mm-100 cm. In other embodiments, the annular polishing member 12 may be selected according to the diameter of the pipe, for example, the diameter may be 8cm, the annular abrasive width may be 0.8cm, and the effect of the annular abrasive width may be 5mm-60cm for the pipe to be polished. In other embodiments, the annular polishing member 12 may be selected according to the diameter of the pipe, for example, the diameter may be 15cm, the annular abrasive width may be 1.5cm, and the effect is better for the pipe to be polished with a diameter of 5cm-120 cm. The larger the diameter of the annular polishing piece 12 is, the larger the annular abrasive width is, the larger the diameter of a pipeline suitable for polishing is, but when the diameter of the pipeline to be polished is fixed, the too large width of the annular abrasive can cause the difference of the abrasion speeds of the abrasive at the edge and the abrasive near the center in the polishing process to form a step-shaped structure, so that the polishing of the pipeline wall is uneven, and polishing marks exist. For common pipe diameters, the ring-shaped polishing member 12 preferably has a diameter ranging from 8cm to 15cm (e.g., 8cm, 8.5cm, 9cm, 9.5cm, 10cm, 10.5cm, 11cm, 11.5cm, 12cm, 12.5cm, 13cm, 13.5cm, 14cm, 14.5cm, 15 cm), and a width ranging from 0.8cm to 1.5cm (e.g., 0.8cm, 0.85cm, 0.9cm, 0.95cm, 1cm, 1.05cm, 1.1cm, 1.15cm, 1.2cm, 1.25cm, 1.3cm, 1.35cm, 1.4cm, 1.45cm, 1.5 cm)

In other embodiments, the piece to be polished may be a rod, which may be circular, oval, etc. in cross-section.

Example 2: the embodiment takes the L-shaped pipeline as the polishing member as an example for explanation

Specifically, grinding device includes polishing subassembly and rotatory fixed subassembly in this embodiment, polishing subassembly includes work head 1, buffing machine 2, buffing machine support 3, in the course of the work, the one side butt that work head 1 deviates from the buffing machine is waited to polish the pipeline outer wall. The working head 1 comprises a fixed bowl 11 and an annular polishing piece 12, wherein the annular polishing piece 12 is connected to the outer edge of the fixed bowl 11, and the bottom of the fixed bowl 11 is connected with one end of the polishing machine 2. The annular polishing piece 12 can be clamped or adhered to the fixed bowl 11, a screw hole is formed in the bottom of the fixed bowl 11, and one end of the polishing machine 2 can be connected with the screw. The annular polishing piece 12 abuts against the outer wall of the pipeline to be polished, and one surface of the annular polishing piece 12, which is far away from the polishing machine 2, is tangent to the pipeline wall to be polished. The ring-shaped polishing member 12 preferably has a diameter ranging from 8cm to 15cm (e.g., 8cm, 8.5cm, 9cm, 9.5cm, 10cm, 10.5cm, 11cm, 11.5cm, 12cm, 12.5cm, 13cm, 13.5cm, 14cm, 14.5cm, 15 cm) and a width ranging from 0.8cm to 1.5cm (e.g., 0.8cm, 0.85cm, 0.9cm, 0.95cm, 1cm, 1.05cm, 1.1cm, 1.15cm, 1.2cm, 1.25cm, 1.3cm, 1.35cm, 1.4cm, 1.45cm, 1.5 cm)

The polishing machine support 3 comprises a workbench bottom plate 31, a plurality of supporting pieces 32, a polishing machine bracket 33 and a first cylinder 34 from bottom to top. The polishing machine 2 is connected to the polishing machine bracket 33, the polishing machine bracket 33 may be plate-shaped or groove-shaped, and an optional connection mode of the polishing machine 2 and the polishing machine bracket 33 is that a fixing hole is formed on the plate-shaped polishing machine bracket 33 or on a bottom plate of the groove-shaped polishing machine bracket 33, a protrusion matched with the fixing hole is arranged on the polishing machine 2, and the polishing machine is connected through tight clamping, or a hole for a screw or a bolt to pass through is arranged on the protrusion, so that the polishing machine and the bracket are fixed through the screw or the bolt. The grinder rest 3 further comprises a return spring 36 and a spring fixing shaft 37, the spring fixing shaft 37 is connected to the other end of the grinder rest 33, one end of the return spring 36 is connected to the spring fixing shaft 37, and the other end of the return spring 36 is connected to the gas steel support plate 35, in other embodiments. The other end of the return spring 36 may be connected to a support member. In the non-working state, the piston rod of the first cylinder 34 is pressed against the other end of the polishing machine bracket 33, the other end of the polishing machine bracket 33 is lowered, the reset spring 36 is tensioned, and one end of the polishing machine bracket 33 is lifted, so that the working head 1 is in a horizontal or upturned state and is separated from a pipeline to be polished. In the working state, the piston rod of the first cylinder 34 is retracted, one end of the polishing machine bracket 33 is retracted, the reset spring 36 is retracted to provide a pulling force, and the other end of the polishing machine bracket 33 is lifted, so that the working head 1 is retracted to be in contact with the pipe wall of the pipe to be polished, and the working head rotates to polish.

The rotary fixing assembly is used for fixing the workpiece to be polished and realizing the rotation of the workpiece to be polished in the polishing process. The rotary fixing assembly comprises a main shaft assembly 4 and a tip assembly 5, the main shaft assembly 4 comprises a first driving device 41, a coupler 42, a bearing seat 43, a first transmission shaft 44 and a first nylon sleeve 45, and the tip assembly 5 comprises a tip bracket 51, a transmission shaft supporting frame 52, a second transmission shaft 53 and a second clamping piece. The first transmission shaft 44 passes through the bearing seat 43, is connected with the first driving device 41 through the coupler 42, and can realize the rotation of the first transmission shaft 44 through the first driving device 41, thereby driving the first nylon sleeve 45 sleeved at one end of the first transmission shaft 44 to rotate. One end of the second transmission shaft 53 is stably connected with the tip holder 51, for example, the second transmission shaft 53 can be fixed by a screw, the other end of the second transmission shaft passes through the adjusting transmission shaft supporting frame 52, the other end of the second transmission shaft 53 is connected with a second clamping piece, the second clamping piece clamps the position of the L-shaped pipeline near the corner, and the second clamping piece is rotatably connected with the other end of the second transmission shaft 53. The pipeline to be polished is clamped between the first nylon sleeve 45 and the second clamping piece by adjusting the distance between the first nylon sleeve 45 of the spindle assembly 4 and the second clamping piece of the center assembly 5, the pipeline to be polished is rotated by supplying power to the spindle assembly 4, and the second clamping piece rotates along with the pipeline to be polished, so that the long side of the L-shaped pipeline can be treated firstly, and the short side of the L-shaped pipeline can be treated secondly, and the outer wall of the whole L-shaped pipeline can be polished.

In other embodiments, the center assembly further includes a second cylinder 55, a connecting piece 57, and a connecting sleeve 56, where the connecting sleeve 56 is located at one end of the second cylinder 55 and connected to one end of the second transmission shaft 53, one end of the connecting sleeve 56 may be sleeved on the end of the piston rod of the second cylinder 55, the other end of the connecting sleeve 56 may abut against one end of the second transmission shaft 53 to achieve connection, or the other end of the connecting sleeve 56 may be sleeved on one end of the second transmission shaft 53 to achieve connection. The other end of the second cylinder 55 is stably connected with the center support 51 through a connecting piece 57, for example, the center support can be fixed by abutting or a screw, the other end of the second transmission shaft 53 penetrates through the adjusting transmission shaft supporting frame 52, the other end of the second transmission shaft 53 is sleeved with a second clamping piece, and the second clamping piece is rotatably connected with the other end of the second transmission shaft 53. During operation, the pipeline to be polished is clamped between the first nylon sleeve 45 and the second clamping piece by adjusting the interval between the first nylon sleeve 45 of the main shaft assembly 4 and the second nylon sleeve 54 of the center assembly 5, and then the piston of the second cylinder 55 is adjusted so that the connecting sleeve further pushes the second transmission shaft 53 to further squeeze the pipeline to be polished.

Other parts reference example 1

In other embodiments, the clamping and rotational sanding of the profile may be accomplished by modifying the structure of the rotationally fixed assembly.

In other embodiments, the polishing machine further comprises a dust collecting device for collecting dust generated by polishing to avoid pollution.

It should be noted that, the power supply in the embodiment of the present application may be matched according to actual use requirements, which is not limited in the embodiment of the present application.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A grinding apparatus, comprising: the polishing assembly and the rotary fixing assembly can move relatively;

The polishing assembly comprises a working head, a polishing machine and a polishing machine support, wherein the working head is connected with one end of the polishing machine, the polishing machine is connected with the polishing machine support, and one end of the polishing machine can rotate around the joint of the polishing machine support and the polishing machine;

The rotary fixing assembly is used for fixing the workpiece to be polished and realizing the rotation of the workpiece to be polished in the polishing process.

2. A grinding device as defined in claim 1, wherein: the working head comprises a fixed bowl and an annular polishing piece, the annular polishing piece is connected to the outer edge of the fixed bowl, and the bottom of the fixed bowl is connected with one end of the polishing machine.

3. A grinding device as defined in claim 2, wherein: the diameter of the annular polishing piece is 8-15 cm, and/or the width of the annular polishing piece is 0.8-1.5 cm.

4. A grinding device as defined in claim 1, wherein: the rotary fixing assembly comprises a main shaft assembly and a center assembly, the main shaft assembly comprises a first driving device, a shaft coupling, a bearing seat, a first transmission shaft and a first fixing piece, the center assembly comprises a center support, a transmission shaft supporting frame, a second transmission shaft and a second fixing piece, and a piece to be polished is clamped between the first fixing piece and the second fixing piece and rotates along with the piece to be polished.

5. The polishing apparatus as set forth in claim 4, wherein: the center assembly further comprises a cylinder, a connecting piece and a connecting sleeve, wherein the connecting sleeve is positioned at one end of the cylinder and connected with one end of the second transmission shaft, and the other end of the cylinder is connected with the center support through the connecting piece.

6. A grinding device as defined in claim 1, wherein: the polishing machine support comprises a workbench bottom plate, a plurality of supporting pieces, a polishing machine bracket and a cylinder from bottom to top, wherein the polishing machine is connected to the polishing machine bracket, one end of the polishing machine bracket is rotatably connected to the supporting pieces, the other end of the polishing machine bracket can rotate around the joint of the polishing machine bracket and the supporting pieces, and the cylinder is connected with the supporting pieces.

7. The polishing apparatus as set forth in claim 6, wherein: the polishing machine support further comprises a spring fixing shaft and a return spring, the spring fixing shaft is connected with the other end of the polishing machine support, one end of the return spring is connected to the spring fixing shaft, and the other end of the return spring is connected with the supporting piece.

8. A grinding device as defined in claim 1, wherein: the polishing device further comprises a base, a guide rail is arranged on the base, the polishing machine support and/or the rotary fixing assembly is connected with the guide rail, and the polishing machine support and/or the rotary fixing assembly can slide along the guide rail.

9. The grinding device of claim 8, wherein: the grinding apparatus further includes a securing assembly for securing the grinder support and/or the rotational securing assembly.

10. The utility model provides a work head for polishing which characterized in that: the working head comprises a fixed bowl and an annular polishing piece, and the annular polishing piece is connected to the outer edge of the fixed bowl.