Precise spherical part surface polishing device

Abstract

The utility model relates to the technical field of polishing devices, and discloses a precise spherical part surface polishing device which comprises a polishing machine head and abrasive paper, a positioning assembly and a movable assembly are arranged on the polishing machine head, the positioning assembly is used for fixing the abrasive paper to the polishing machine head, and the positioning assembly is provided with a positioning state and a loosening state. The movable assembly is used for controlling the positioning assembly to be switched between the positioning state and the loosening state. According to the utility model, the positioning assembly and the movable assembly are arranged on the polishing machine head, and the movable assembly can control the positioning assembly to be switched between the positioning state and the loosening state, so that the problems of easy loosening and poor abrasive paper stability caused by buckle fixation are effectively avoided; the polishing effect on the precise spherical part is further optimized, in addition, state switching can be achieved only by screwing the rotating handle with hands, and great convenience is also brought to operation of workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing device technical field more particularly to a kind of precision spherical part surface polishing device. BACKGROUND

[0002] At present, when polishing spherical part, special spherical polishing device is used, the device is generally provided with three sets of polishing machine head, and staff can place spherical part between three sets of polishing machine head, and polishing machine head is driven eccentric motion under motor, in this process, spherical part rotates between three sets of polishing machine head by the traction of polishing machine head, while, abrasive paper on polishing machine head completes the polishing of spherical part.

[0003] The abrasive paper on the existing polishing machine head is generally fixed directly by using buckles, however, buckles are prone to loosening after a period of use due to wear, and the stability of the abrasive paper is poor during the polishing process because the polishing machine head is always in eccentric motion, which affects the polishing effect of the spherical part. INVENTION CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of precision spherical part surface polishing device to solve the problems existing in the above-mentioned background art.

[0005] The utility model provides the following technical scheme: a kind of precision spherical part surface polishing device, including polishing machine head and abrasive paper, polishing machine head is provided with positioning assembly and movable assembly, positioning assembly is used to fix abrasive paper on polishing machine head, positioning assembly is provided with positioning state and slack state, movable assembly is used to control positioning assembly and slack state between positioning state each other Switching.

[0006] Positioning assembly includes receiving frame, positioning plate, U-shaped frame, link frame and guide rod, U-shaped frame and link frame are provided with auxiliary connecting rod, link frame and movable assembly are provided with main connecting rod.

[0007] Preferably, positioning assembly is provided with four, and four positioning assemblies are arrayed around the circumferential direction of polishing machine head, receiving frame is fixedly installed on polishing machine head, rotating shaft is rotatably installed on receiving frame, positioning plate is fixedly installed on the surface of rotating shaft, and U-shaped frame is fixedly installed on the surface of rotating shaft.

[0008] Preferably, auxiliary connecting rod one end and link frame are hinged, auxiliary connecting rod other end and U-shaped frame are hinged, both ends of guide rod are fixedly connected with limiting block, limiting block is fixedly installed on polishing machine head, and link frame is sleeved on the surface of guide rod.

[0009] Preferably, the movable assembly comprises a rotating handle, a mounting ring, a sleeve and a guide column, the mounting ring is rotatably mounted on one side of the rotating handle, an extension frame is fixedly connected to the outer surface of the mounting ring, and the extension frame is provided with four corresponding positioning assemblies.

[0010] Preferably, the main connecting rod is located between the connecting frame and the extension frame, one end of the main connecting rod is hingedly connected to the connecting frame, and the other end of the main connecting rod is hingedly connected to the extension frame.

[0011] Preferably, one side of the sleeve is fixedly connected to the grinding head, a movable ring is fixedly connected to the inner side of the rotating handle, an internal thread is arranged on the inner side of the movable ring, an external thread is arranged on the outer surface of the sleeve, and the external thread is matched with the internal thread.

[0012] Preferably, one end of the guide column is fixedly connected to the grinding head, a plurality of guide columns are arranged, a plurality of guide blocks are fixedly connected to the inner side of the rotating handle, the guide blocks are correspondingly arranged on the guide columns, and the guide blocks are sleeved on the surfaces of the guide columns.

[0013] Preferably, the non-slip pad is arranged on the positioning plate and is made of silica gel.

[0014] The technical effects and advantages of the present application are as follows:

[0015] In the present application, the positioning assembly and the movable assembly are arranged on the grinding head, the movable assembly can control the positioning assembly to switch between the positioning state and the relaxed state, when it is necessary to install the sandpaper on the grinding head, the worker only needs to rotate the rotating handle by hand, so as to switch the positioning assembly to the positioning state, at this time, the sandpaper is tightly positioned by the positioning plate, when it is necessary to remove the sandpaper, the worker reversely rotates the rotating handle, so as to switch the positioning assembly to the relaxed state, at this time, the positioning plate releases the tight positioning of the sandpaper, and the worker can remove the sandpaper from the grinding head, the present application effectively avoids the problems of easy loosening and poor stability of the sandpaper caused by the buckle fixing, further optimizes the effect of polishing the precise spherical part, and in addition, the state switching can be realized only by rotating the rotating handle by hand, which brings great convenience to the operation of the worker. DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the present application.

[0017] Figure 2 It is a whole structure schematic view of the present application.

[0018] Figure 3 It is a positioning assembly structure schematic view of the present application.

[0019] Figure 4 It is a positioning assembly structure schematic view of the present application.

[0020] Figure 5The utility model discloses a movable assembly structure schematic diagram.

[0021] The figure mark is: 1, polisher head, 2, positioning assembly, 21, bearing frame, 22, rotation axis, 23, positioning plate, 24, U-shaped frame, 25, link frame, 26, vice connecting rod, 27, guide rod, 28, main connecting rod, 29, limit block, 3, movable assembly, 31, rotation handle, 32, mounting ring, 33, extension frame, 34, sleeve, 35, movement ring, 36, guide block, 37, guide column, 4, sandpaper. DETAILED DESCRIPTION

[0022] The utility model discloses a movable assembly structure schematic diagram.

[0023] The utility model provides a kind of precision spherical part surface polishing device, including polisher head 1 and sandpaper 4, polisher head 1 is provided with positioning assembly 2 and movable assembly 3, positioning assembly 2 is used to be fixed with sandpaper 4 on polisher head 1, positioning assembly 2 is provided with positioning state and slack state, movable assembly 3 is used to control positioning assembly 2 mutually switch between positioning state and slack state.

[0024] Spherical part polishing device is generally provided with three sets of polisher head 1, staff can place spherical part between three sets of polisher head 1, and polisher head 1 can be driven under the motor and carry out eccentric motion, in this process, spherical part is rotated between three sets of polisher head 1 by the traction of polisher head 1, at the same time, sandpaper 4 on polisher head 1 completes the polishing of spherical part, polisher head 1 is the prior art in the field of polishing device, not repeat here.

[0025] Further, the positioning assembly 2 comprises a receiving frame 21, a positioning plate 23, a U-shaped frame 24, a connecting frame 25 and a guide rod 27, a sub-connecting rod 26 is arranged between the U-shaped frame 24 and the connecting frame 25, a main connecting rod 28 is arranged between the connecting frame 25 and the movable assembly 3, the positioning assembly 2 is provided with four, and the four positioning assemblies 2 are arrayed in the circumferential direction of the polishing machine head 1, the receiving frame 21 is fixedly installed on the polishing machine head 1, a rotating shaft 22 is rotatably installed on the receiving frame 21, the positioning plate 23 is fixedly installed on the surface of the rotating shaft 22, and the U-shaped frame 24 is fixedly installed on the surface of the rotating shaft 22, the sub-connecting rod 26 is hingedly connected between one end and the connecting frame 25, the sub-connecting rod 26 is hingedly connected between the other end and the U-shaped frame 24, the guide rod 27 is fixedly connected with a limiting block 29 at both ends, the limiting block 29 is fixedly installed on the polishing machine head 1, the connecting frame 25 is sleeved on the surface of the guide rod 27, and the connecting frame 25 and the guide rod 27 form a sliding guide fit along the axis direction of the guide rod 27, an anti-skid pad is arranged on the positioning plate 23, the anti-skid pad is made of silica gel material, the anti-skid pad makes the positioning plate 23 play a role of increasing friction and preventing slipping, so that the positioning plate 23 can better press and position the sandpaper 4.

[0026] Further, the movable assembly 3 comprises a rotating handle 31, a mounting ring 32, a sleeve 34 and a guide column 37, the mounting ring 32 is rotatably installed on one side of the rotating handle 31, an extension frame 33 is fixedly connected to the outer surface of the mounting ring 32, the extension frame 33 is provided with four corresponding to the positioning assembly 2, the main connecting rod 28 is located between the connecting frame 25 and the extension frame 33, one end of the main connecting rod 28 is hingedly connected with the connecting frame 25, the other end of the main connecting rod 28 is hingedly connected with the extension frame 33, one side of the sleeve 34 is fixedly connected with the polishing machine head 1, a movement ring 35 is fixedly connected to the inner side of the rotating handle 31, an inner thread is arranged on the inner side of the movement ring 35, an outer thread is arranged on the outer surface of the sleeve 34, the outer thread matches the inner thread, one end of the guide column 37 is fixedly connected with the polishing machine head 1, the guide column 37 is provided with a plurality of, a guide block 36 is fixedly connected to the inner side of the rotating handle 31, the guide block 36 is provided with a plurality of corresponding to the guide column 37, the guide block 36 is sleeved on the surface of the guide column 37, and the guide block 36 and the guide column 37 form a sliding guide fit along the axis direction of the guide column 37.

[0027] The working principle of the utility model discloses: when installing the sandpaper 4 to the grinding machine head 1, the staff uses hand to screw the rotating handle 31 and makes it rotate around its axis, the rotating handle 31 rotates and drives the movement ring 35 to rotate synchronously, at the same time, under the cooperation of the internal thread and the external thread, the rotating handle 31 moves synchronously towards the direction of the grinding machine head 1, the rotating handle 31 moves and drives the mounting ring 32 to move synchronously towards the direction of the grinding machine head 1, the guiding block 36 on the inner side of the mounting ring 32 slides along the guiding column 37 synchronously, the mounting ring 32 moves and drives the connecting frame 25 to slide along the guide rod 27 towards the direction of the center of the grinding machine head 1 synchronously through the main connecting rod 28, the connecting frame 25 moves and drives the U-shaped frame 24 to rotate synchronously around the rotating shaft 22 axis through the auxiliary connecting rod 26, the rotating shaft 22 rotates and drives the positioning plate 23 to rotate synchronously around the rotating shaft 22 axis, the positioning plate 23 gradually moves towards the direction of the grinding machine head 1, the positioning assembly 2 is switched to the positioning state, and the sandpaper 4 is pressed and positioned by the positioning plate 23.

[0028] When needing to remove the sandpaper 4, the staff reversely screws the rotating handle 31, and the rotating handle 31 moves towards the direction of the grinding machine head 1, the positioning plate 23 gradually moves synchronously towards the direction of the grinding machine head 1, the positioning assembly 2 is switched to the relaxed state, the positioning plate 23 releases the pressing and positioning of the sandpaper 4, and the staff can remove the sandpaper 4 from the grinding machine head 1.

[0029] Finally, the following points should be explained: first, in the description of the application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0030] Secondly: the utility model discloses the embodiment of the drawings, only relates to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0031] Finally: the above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A precision spherical part surface polishing device comprising a polishing head (1) and a sandpaper (4), characterized in that, The polishing head (1) is provided with a positioning assembly (2) and a movable assembly (3), the positioning assembly (2) is used for fixing the sandpaper (4) on the polishing head (1), the positioning assembly (2) is provided with a positioning state and a relaxed state, and the movable assembly (3) is used for controlling the positioning assembly (2) to switch between the positioning state and the relaxed state. The positioning assembly (2) comprises a receiving frame (21), a positioning plate (23), a U-shaped frame (24), a connecting frame (25) and a guide rod (27), a sub-connecting rod (26) is arranged between the U-shaped frame (24) and the connecting frame (25), and a main connecting rod (28) is arranged between the connecting frame (25) and the movable assembly (3).

2. The device according to claim 1, wherein The positioning assembly (2) is provided with four positioning assemblies (2), and the four positioning assemblies (2) are arrayed around the circumferential direction of the polishing head (1), the receiving frame (21) is fixedly installed on the polishing head (1), the rotating shaft (22) is rotatably installed on the receiving frame (21), the positioning plate (23) is fixedly installed on the surface of the rotating shaft (22), and the U-shaped frame (24) is fixedly installed on the surface of the rotating shaft (22).

3. The device for polishing the surface of a precision spherical part according to claim 2, wherein The sub-connecting rod (26) is hingedly connected between one end and the connecting frame (25), the other end of the sub-connecting rod (26) is hingedly connected with the U-shaped frame (24), the guide rod (27) is fixedly connected with the limiting block (29) at both ends, the limiting block (29) is fixedly installed on the polishing head (1), and the connecting frame (25) is sleeved on the surface of the guide rod (27).

4. The device for polishing the surface of a precision spherical part according to claim 3, wherein The movable assembly (3) comprises a rotating handle (31), a mounting ring (32), a sleeve (34) and a guide column (37), the mounting ring (32) is rotatably installed on one side of the rotating handle (31), the outer surface of the mounting ring (32) is fixedly connected with the extension frame (33), and the extension frame (33) is provided with four extension frames (33) corresponding to the positioning assembly (2).

5. The device for polishing the surface of a precision spherical part according to claim 4, wherein The main connecting rod (28) is located between the connecting frame (25) and the extension frame (33), one end of the main connecting rod (28) is hingedly connected with the connecting frame (25), and the other end of the main connecting rod (28) is hingedly connected with the extension frame (33).

6. The device for polishing the surface of a precision spherical part according to claim 5, wherein The sleeve (34) is fixedly connected with the polishing head (1) on one side, the inner side of the rotating handle (31) is fixedly connected with the movement ring (35), the inner side of the movement ring (35) is provided with an internal thread, and the outer surface of the sleeve (34) is provided with an external thread matched with the internal thread.

7. The device of claim 6, wherein the device is configured to rotate the ball about the axis of rotation. The guide column (37) is fixedly connected with the polishing head (1) on one end, the guide column (37) is provided with a plurality of guide columns (37), the inner side of the rotating handle (31) is fixedly connected with the guide block (36), the guide block (36) is provided with a plurality of guide blocks (36) corresponding to the guide column (37), and the guide block (36) is sleeved on the surface of the guide column (37).

8. The device of claim 7, wherein the device is configured to rotate the ball about the axis of rotation. The positioning plate (23) is provided with a non-slip pad made of silica gel.

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