Surface grinding device suitable for cylinder

Abstract

The surface polishing device suitable for the cylinder comprises a supporting seat, a polishing assembly, a positioning pipe and a rotary driving assembly, the polishing assembly comprises a swing arm, a balancing weight and a polishing head, the polishing head is provided with a first end of the swing arm, the balancing weight is arranged at a second end of the swing arm, the swing arm is hinged to the supporting seat, and the swing arm rotates around a first rotating shaft; the rotating driving assembly drives the supporting base to rotate around the second rotating shaft, the positioning pipe is fixedly connected to the end of the supporting base, an assembling hole is formed in the positioning pipe in a penetrating mode along the second rotating shaft, and at least two receding grooves are formed in the outer wall of the positioning pipe and communicate with the assembling hole; the grinding head is arranged in a cylindrical mode, the axial direction of the grinding head is parallel to the first rotating shaft, the grinding head is movably arranged in the receding groove, and the peripheral wall of the grinding head can move into the assembling hole. According to the scheme, 360-degree continuous and uniform polishing of the casing pipe can be achieved, the rotating speed is adjusted in a matched mode, and in other words, the polishing strength can be adjusted through the centrifugal force of the balancing weight.

Description

Technical Field

[0001] The utility model relates to the field of optical devices, in particular to a surface grinding device suitable for a cylinder. Background Art

[0002] When gluing plastic soft casing, the smooth outer wall will lead to insufficient glue relay. If you want to improve the glue relay, you can grind the outer wall of the casing of the glued part to a rough state, which can significantly improve the glue relay. There are two existing grinding methods. One is for casings with a thinner outer diameter and a softer texture, generally using fine sandpaper for grinding. The other is for casings with a thicker outer diameter and a slightly harder texture, using a blade scraping method to scrape some frosted marks on the outer wall of the tube. The above two methods can increase the surface roughness of the glued part of the casing to improve the glue relay.

[0003] However, the working efficiency of the above two methods is relatively slow, and the grinding effect is not uniform and it is easy to damage the casing. The main reason is that only a straight line can be polished at one time during manual grinding. If you want to achieve a rough effect on the entire outer wall of the tube, you need to rotate the direction many times to form a relatively complete cylindrical surface, which is time-consuming and prone to uneven grinding. Utility Model Content

[0004] The utility model aims to provide a surface grinding device which can improve the grinding efficiency and uniformity of a cylinder.

[0005] In order to achieve the purpose of the utility model, the utility model provides a surface grinding device suitable for a cylinder, comprising a support seat, at least two grinding assemblies and a rotation drive assembly, wherein the at least two grinding assemblies are symmetrically arranged on the outer periphery of the support seat, the grinding assembly comprises a swing arm, a counterweight and a grinding head, the grinding head is provided with a first end of the swing arm, the counterweight is arranged at the second end of the swing arm, a hinge is arranged between the first end of the swing arm and the second end of the swing arm, the hinge is hinged to the support seat, the swing arm rotates around a first rotating axis, and the rotation drive assembly drives the support seat to rotate around a second rotating axis, the first rotating axis is perpendicular to the second rotating axis; the surface grinding device also includes a positioning tube, the positioning tube is fixedly connected to the end of the support seat, the positioning tube is provided with an assembly hole along the second rotating axis, the outer wall of the positioning tube is provided with at least two avoidance grooves, and the avoidance grooves are connected to the assembly hole; the grinding head is arranged in a cylindrical shape, the axial direction of the grinding head is parallel to the first rotating axis, the grinding head is movably arranged in the avoidance groove, and the outer peripheral wall of the grinding head can be moved into the assembly hole.

[0006] A further solution is that the avoidance groove extends through the axial direction of the grinding head.

[0007] A further solution is that the support seat is provided with a through hole, and the assembly hole is coaxially connected with the through hole.

[0008] A further solution is that the surface grinding device also includes a protective shell, at least two grinding components are located in the protective shell, the protective shell is respectively provided with a first through hole and a second through hole at two opposite ends, the positioning tube passes through the first through hole, and the support seat passes through the second through hole.

[0009] A further solution is that an extension tube is provided at the end of the support seat away from the positioning tube, and the extension tube extends along the second rotating axis; the rotation drive assembly includes a driving wheel, a driven wheel and a power drive module, the driven wheel is mounted outside the extension tube, the driving wheel is connected to the driven wheel, and the power drive module is connected to the driving wheel and drives the driving wheel to rotate.

[0010] A further solution is that the surface grinding device also includes a bearing seat, a first bearing and a second bearing, the bearing seat is provided with a first mounting hole, the first mounting hole extends along the second rotating shaft, the first bearing and the second bearing are respectively arranged at both ends of the first mounting hole, and the first bearing and the second bearing are respectively mounted on the extension tube.

[0011] A further solution is that the bearing seat is provided with a second mounting hole on one radial side of the first mounting hole, and the power drive module is mounted in the second mounting hole.

[0012] The beneficial effect of the utility model is that when grinding a cylinder such as a sleeve, the sleeve can be inserted into the assembly hole, and as the rotary drive assembly drives the grinding assembly and the support seat, the counterweight block moves outward with the centrifugal force, and the grinding head moves toward the assembly hole, and then the sleeve can be continuously and evenly ground at 360°, and the rotation speed can be adjusted, that is, the centrifugal force of the counterweight block can be used to adjust the grinding intensity. Furthermore, the assembly hole is coaxially connected to the through hole, and then the sleeve can move along the second rotating axis and achieve long-distance grinding. And the dust after grinding can be collected by the setting of the protective shell. In combination with the arrangement of the driven wheel and the driving wheel, the movement of the sleeve along the second rotating axis is not affected, and the two bearings can be used to improve the rotational stability of the extension tube and the support seat, so as to improve the grinding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of an embodiment of the surface grinding device of the utility model.

[0014] Figure 2 It is a structural diagram of an embodiment of the surface grinding device of the utility model after omitting the outer shell.

[0015] Figure 3 It is a structural diagram of the surface grinding device embodiment of the utility model in another viewing angle after the outer shell is omitted.

[0016] Figure 4 It is an exploded view of an embodiment of the surface grinding device of the utility model.

[0017] Figure 5 It is a cross-sectional view of the surface grinding device embodiment of the utility model in a non-grinding state.

[0018] Figure 6 It is a cross-sectional view of an embodiment of the surface grinding device of the utility model in a grinding state.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 6 The surface grinding device includes a support seat 11, a protective shell 13, at least two grinding components 2, a positioning tube 3 and a rotation drive component. At least two grinding components 2 are symmetrically arranged on the outer periphery of the support seat 11. The grinding component 2 includes a swing arm 21, a counterweight 23 and a grinding head 22. The grinding head 22 is provided with a first end of the swing arm 21, and the counterweight 23 is arranged at the second end of the swing arm 21. A hinged portion 24 is arranged between the first end of the swing arm 21 and the second end of the swing arm 21. The hinged portion 24 is arranged in the form of a hinge hole. The support seat 11 is provided with hinge positions 112 on opposite sides. The hinge position 112 is provided with a hinge hole. The hinged portion 24 is hinged to the hinge position 112 of the support seat 11 through a rotating shaft, and then the swing arm 21 can rotate around the first rotating shaft L1. The hinged portion 24 is arranged closer to one side of the grinding head 22. The grinding head 22 is arranged in a cylindrical shape, and the axial direction of the grinding head 22 is parallel to the first rotating shaft L1.

[0021] The positioning tube 3 is fixedly connected to the end of the support seat 11, and an assembly hole 31 is provided through the positioning tube 3 along the second rotating axis L2. The outer wall of the positioning tube 3 is provided with two avoidance grooves 32, and the two avoidance grooves 32 are symmetrically arranged on the outer wall. The avoidance grooves 32 are connected with the assembly hole 31, and the avoidance grooves 32 extend through the axial direction of the grinding head 22. The grinding head 22 is movably arranged in the avoidance grooves 32, and the outer peripheral wall of the grinding head 22 can be moved into the assembly hole 31.

[0022] An extension tube 12 is arranged in the support seat 11, and the extension tube 12 extends along the second rotation axis L2. A through hole 141 is arranged along the second rotation axis L2 through the positioning tube 3. One end of the extension tube 12 is connected to the positioning tube 3, and the assembly hole 31 is coaxially connected with the through hole 141. A part of the through hole 141 is located in the support seat 11, and the other end of the extension tube 12 extends away from one end of the positioning tube 3.

[0023] At least two grinding components 2 are located in the protective shell 13, and the protective shell 13 is formed by snapping together an outer cover 131 and a disk body 132. The protective shell 13 is respectively provided with a first through hole 133 and a second through hole 134 at two opposite ends. The first through hole 133 is located on the outer cover 131, and the second through hole 134 is located on the disk body 132. The positioning tube 3 passes through the first through hole 133, and the support seat 11 passes through the second through hole 134.

[0024] The rotary drive assembly includes a driving wheel 43, a driven wheel 41 and a power drive module 44. The driven wheel 41 is sleeved outside the extension tube 12. The driving wheel 43 is connected to the driven wheel 41 through a transmission bar 42. The power drive module 44 is connected to the driving wheel 43 and drives the driving wheel 43 to rotate. The driving wheel 43, the driven wheel 41 and the power drive module 44 are all arranged in the housing 15. The power drive module 44 can be a motor. Through the rotation of the power drive module 44, the driving wheel 43, the driven wheel 41, the extension tube 12 and the support seat 11 are driven to rotate, so that the rotary drive assembly drives the support seat 11 to rotate around the second rotation axis L2, and the first rotation axis L1 is perpendicular to the second rotation axis L2.

[0025] The surface grinding device further includes a bearing seat 14, a first bearing 45 and a second bearing 46. The bearing seat 14 is provided with a first mounting hole 141, the first mounting hole 141 extends along the second rotation axis L2, the first bearing 45 and the second bearing 46 are respectively provided at both ends of the first mounting hole 141, and the first bearing 45 and the second bearing 46 are respectively sleeved on the extension tube 12. The bearing seat 14 is provided with a second mounting hole 142 on one radial side of the first mounting hole 141, and the power drive module 44 is installed in the second mounting hole 142. The housing 15 is connected between the protective shell 13 and the bearing seat 14.

[0026] Reference Figure 5 When preparing to grind the sleeve, since the support seat 11 does not rotate, the counterweight block 23 does not generate centrifugal force, so the grinding head 22 does not enter the assembly hole 31, and then the sleeve 5 can be inserted into the assembly hole 31 and the through hole 141.

[0027] Reference Figure 6 Then, the power drive module 44 is used to drive the support seat 11 to rotate, and then the counterweight block 23 generates centrifugal force, and the magnitude of the centrifugal force can be adjusted by the rotation speed, and then the outer wall of the grinding head 22 can enter the assembly hole 31 and rub against the outer wall of the sleeve 5 to achieve 360° grinding, and drive the sleeve 5 to move along the second rotation axis L2, and then grind different positions of the sleeve 5. Of course, outside this embodiment, the number of grinding components can be increased or decreased according to the actual needs of grinding.

[0028] As can be seen from the above, when grinding a cylinder such as a sleeve, the sleeve can be inserted into the assembly hole, and as the rotating drive assembly drives the grinding assembly and the support seat, the counterweight moves outward with the centrifugal force, and the grinding head moves toward the assembly hole, and then the sleeve can be continuously and evenly ground at 360°, and the rotation speed can be adjusted, that is, the centrifugal force of the counterweight can be used to adjust the grinding intensity. Furthermore, the assembly hole is coaxially connected to the through hole, and then the sleeve can move along the second rotating axis and achieve long-distance grinding. And the protective shell can be used to collect dust after grinding. In combination with the arrangement of the driven wheel and the driving wheel, the movement of the sleeve along the second rotating axis is not affected, and the two bearings can be used to improve the rotational stability of the extension tube and the support seat, so as to improve the grinding stability.

Claims

1. A surface grinding device suitable for a cylindrical body, comprising a support seat, at least two grinding assemblies and a rotation drive assembly, wherein at least two of the grinding assemblies are symmetrically arranged on the outer periphery of the support seat, the grinding assembly comprises a swing arm, a counterweight and a grinding head, the grinding head is provided with a first end of the swing arm, the counterweight is arranged at a second end of the swing arm, a hinge is arranged between the first end of the swing arm and the second end of the swing arm, the hinge is hinged to the support seat, the swing arm rotates around a first rotation axis, the rotation drive assembly drives the support seat to rotate around a second rotation axis, and the first rotation axis is perpendicular to the second rotation axis; Features: The surface grinding device further comprises a positioning tube, the positioning tube is fixedly connected to the end of the support seat, the positioning tube is provided with an assembly hole along the second rotating shaft, and the outer wall of the positioning tube is provided with at least two avoidance grooves, and the avoidance grooves are connected with the assembly hole; The grinding head is arranged in a cylindrical shape, the axial direction of the grinding head is parallel to the first rotating shaft, the grinding head is movably arranged in the avoidance groove, and the outer peripheral wall of the grinding head can be moved into the assembly hole.

2. The surface grinding device according to claim 1, characterized in that: The avoidance groove extends through the grinding head along the axial direction.

3. The surface grinding device according to claim 1, characterized in that: The support seat is provided with a through hole, and the assembly hole is coaxially connected with the through hole.

4. The surface grinding device according to claim 1, characterized in that: The surface grinding device also includes a protective shell, at least two of the grinding components are located in the protective shell, the protective shell is respectively provided with a first through hole and a second through hole at two opposite ends, the positioning tube passes through the first through hole, and the support seat passes through the second through hole.

5. The surface grinding device according to any one of claims 1 to 4, characterized in that: The support seat is provided with an extension tube at one end away from the positioning tube, and the extension tube extends along the second rotating shaft; The rotary drive assembly includes a driving wheel, a driven wheel and a power drive module. The driven wheel is sleeved outside the extension tube, the driving wheel is connected to the driven wheel, and the power drive module is connected to the driving wheel and drives the driving wheel to rotate.

6. The surface grinding device according to claim 5, characterized in that: The surface grinding device also includes a bearing seat, a first bearing and a second bearing. The bearing seat is provided with a first mounting hole, the first mounting hole extends along the second rotating shaft, the first bearing and the second bearing are respectively arranged at two ends of the first mounting hole, and the first bearing and the second bearing are respectively mounted on the extension tube.

7. The surface grinding device according to claim 6, characterized in that: The bearing seat is provided with a second mounting hole on one radial side of the first mounting hole, and the power drive module is mounted in the second mounting hole.

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