Eccentric swing type polishing grinding head and polishing equipment

Abstract

The embodiment of the utility model provides an eccentric swing type polishing grinding head and polishing equipment, and relates to the field of polishing and grinding. The eccentric swing type polishing grinding head comprises a driving piece, an eccentric piece, a driving swing piece, a driven swing piece and a grinding block. The eccentric part is in transmission connection with the driving part and drives the driving swing parts to swing, each driving swing part is connected with a driven swing part, the total number of the driving swing parts and the driven swing parts is an even number, the driving swing parts and the driven swing parts are arranged in a surrounding mode, and the driving swing parts and the driven swing parts are matched in a meshed mode through driving swing teeth and driven swing teeth. And each driving swing piece and each driven swing piece are connected with grinding blocks. According to the eccentric swing type polishing grinding head, the swing directions of any two adjacent grinding blocks in the grinding blocks arranged in the surrounding mode are opposite, the swing angles are consistent, the resultant force of friction force formed by swing motion is zero, impact on all joints is reduced, and the service life of the eccentric swing type polishing grinding head is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of polishing and grinding, in particular to an eccentric swinging polishing grinding head and polishing equipment. Background Art

[0002] In polishing equipment, due to the limitations of the existing swing transmission mechanism, there is always at least one pair of adjacent grinding blocks with the same swing angle direction, which causes the direction of the resultant force of the friction formed by the swinging motion of the grinding blocks to change suddenly in stages, causing the various connections in the polishing grinding head to be impacted and damaged, thereby affecting the service life of the eccentric swinging polishing grinding head. Utility Model Content

[0003] The utility model provides an eccentric swinging polishing grinding head and polishing equipment, which can make the swing angles of any adjacent grinding blocks equal in size and opposite in direction, thereby making the resultant force of the friction formed by the swinging motion zero, reducing the impact on each connection and preventing damage, thereby increasing the service life of the eccentric swinging polishing grinding head.

[0004] The embodiment of the present utility model can be implemented as follows:

[0005] The embodiment of the present utility model provides an eccentric swing type polishing grinding head, which comprises:

[0006] Driving member, eccentric member, active oscillating member, driven oscillating member and grinding block;

[0007] In which, the eccentric member is transmission-connected to the driving member and is used to drive the active swinging member to perform a swinging motion, each of the active swinging members is connected to the driven swinging member, the total number of the active swinging members and the driven swinging members is an even number, the active swinging members and the driven swinging members are arranged in an enclosed manner, and each of the active swinging members and each driven swinging member is connected to the grinding block.

[0008] Optionally, the eccentric member includes an eccentric seat and a dial, the eccentric seat is connected to the driving member and is used for eccentric rotation, the dial is mounted on the eccentric seat and is used for revolution around the driving member, and the active swinging members are all connected to the dial.

[0009] Optionally, the dial is provided with two guide grooves arranged opposite to each other, the two guide grooves respectively extending in a radial direction close to the center of the dial, and the number of the active swinging members is two and they are respectively accommodated in the two guide grooves.

[0010] Optionally, two limiting holes arranged opposite to each other are provided on the dial, and the two limiting holes are arranged corresponding to the two driven swinging members. The eccentric swinging polishing grinding head also includes a limiting plate, which is connected to the driving member and accommodated in the limiting hole.

[0011] Optionally, the eccentric seat includes an upper seat and a lower seat, the upper seat is transmission-connected to the driving member, the dial is sleeved on the upper seat, the lower seat is concentrically arranged with the driving member, and the upper seat is eccentrically arranged relative to the lower seat.

[0012] Optionally, the active swing member is provided with an active swing tooth, and the driven swing member is provided with a driven swing tooth, and the active swing tooth is meshed with the driven swing tooth.

[0013] Optionally, the driving member includes a driving shaft, a coupling, a grinding head seat and a rotating sleeve, the coupling is connected to the driving shaft and the grinding head seat, the rotating sleeve is connected to the grinding head seat and is sleeved on the driving shaft, and the eccentric is transmission-connected to the rotating sleeve.

[0014] Optionally, the driving member further includes a buffer pad, which is arranged between the coupling and the grinding head seat.

[0015] Optionally, the eccentric swinging polishing grinding head further includes a transmission member, which sequentially meshes with a driving gear, an intermediate gear and a driven gear, the driving gear is sleeved on the rotating sleeve, the eccentric member is connected to the driven gear, and the number of teeth of the driving gear and the driven gear are different.

[0016] An embodiment of the utility model further provides a polishing device, comprising the eccentric swinging polishing grinding head.

[0017] The beneficial effects of the eccentric swing polishing grinding head and the polishing device according to the embodiment of the utility model include, for example:

[0018] The eccentric swing polishing grinding head includes a driving member, an eccentric member, an active swing member, a driven swing member and a grinding block; wherein the eccentric member is connected to the driving member and is used to drive the active swing member to swing, each active swing member is connected to a driven swing member, the total number of the active swing members and the driven swing members is an even number, the active swing member and the driven swing member are arranged in an enclosed manner, the active swing member is provided with an active swing tooth, the driven swing member is provided with a driven swing tooth, the active swing tooth is meshed with the driven swing tooth, and each active swing member and each driven swing member is connected to a grinding block. During operation, the driving member is used to drive the active swing member to swing through the eccentric member, and the driven swing member swings in the opposite direction relative to the active swing member through the cooperation of the active swing tooth and the driven swing tooth, thereby making any two adjacent grinding blocks in the enclosed grinding blocks swing in opposite directions and have the same swing angle, so that the resultant force of the friction generated by the swinging motion is zero, reducing the impact on each connection, thereby improving the service life of the eccentric swing polishing grinding head.

[0019] The polishing device comprises an eccentric swing type polishing grinding head, which has all the functions of the eccentric swing type polishing grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of an eccentric swing polishing grinding head provided in an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of the layout of the active swing member and the driven swing member provided in an embodiment of the present utility model;

[0023] Figure 3 A schematic cross-sectional view of an eccentric seat provided in an embodiment of the present utility model;

[0024] Figure 4 A schematic structural diagram of a dial provided in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the positions of the limiting holes and the limiting plates provided in an embodiment of the present utility model.

[0026] Icons: 100-eccentric oscillating polishing grinding head; 120-driving member; 122-driving shaft; 124-coupling; 125-limiting plate; 126-grinding head seat; 128-rotating sleeve; 129-buffer pad; 130-transmission member; 132-driving gear; 134-intermediate gear; 136-driven gear; 140-eccentric member; 142-eccentric seat; 1421-upper seat; 1423-lower seat; 144-dial; 1441-guide groove; 1443-limiting hole; 146-counterweight; 160-active oscillating member; 161-active swing tooth; 180-driven oscillating member; 181-driven swing tooth; 190-grinding block. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0032] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0033] Unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0034] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0035] As mentioned in the background technology, in the polishing equipment, due to the limitations of the existing swing transmission mechanism, there is always at least one pair of adjacent grinding blocks with the same swing angle direction, which makes the direction of the resultant force of the friction formed by the swinging motion of the grinding blocks also change suddenly in stages, causing each connection to be impacted, thereby affecting the service life of the eccentric swinging polishing grinding head.

[0036] Please refer to Figure 1 and Figure 2 The eccentric swing polishing grinding head 100 and the polishing equipment provided in the embodiment of the present invention can solve the above problems, which will be described in detail below.

[0037] The eccentric swing type polishing grinding head 100 includes a driving member 120, an eccentric member 140, an active swing member 160, a driven swing member 180 and a grinding block 190;

[0038] Among them, the eccentric member 140 is transmission-connected to the driving member 120 and is used to drive the active swing member 160 to swing. Each active swing member 160 is connected to a driven swing member 180. The total number of active swing members 160 and driven swing members 180 is an even number. The active swing member 160 and the driven swing member 180 are arranged in an enclosed manner. The active swing member 160 is provided with an active swing tooth 161, and the driven swing member 180 is provided with a driven swing tooth 181. The active swing tooth 161 is engaged with the driven swing tooth 181. Each active swing member 160 and each driven swing member 180 is connected to a grinding block 190.

[0039] During operation, the driving member 120 is used to drive the active swinging member 160 to swing through the eccentric member 140, and the driven swinging member 180 swings in the opposite direction relative to the active swinging member 160 through the cooperation of the active swinging tooth 161 and the driven swinging tooth 181, so that any two adjacent grinding blocks 190 in the enclosed grinding blocks 190 have opposite swing directions and the same swing angle, so that the resultant force of the friction formed by the swinging motion is zero, reducing the impact on each connection to reduce damage, thereby improving the service life of the eccentric swinging polishing grinding head 100.

[0040] It is worth noting that there are two active swing members 160, four passive swing members 180, and six grinding blocks 190, and each grinding block 190 is connected to a corresponding active swing member 160 or a passive swing member 180. The active swing member 160 can drive the corresponding grinding block 190 to swing, and at the same time drive the passive swing members 180 on both sides to swing in the opposite direction. The passive swing member 180 can also drive the corresponding grinding block 190 to swing.

[0041] Of course, in other embodiments of the present invention, the number of active swing members 160 can be four, and the number of driven swing members 180 can be eight, that is, the number of active swing members 160 is an even number, and the number of driven swing members 180 is twice the number of active swing members 160; the number of active swing members 160 can also be an odd number such as three or five, and the number of driven swing members 180 can also be three or five, that is, the number of active swing members 160 and the number of driven swing members 180 are both odd numbers, and the sum of the two numbers is an even number.

[0042] refer to Figure 1 The driving member 120 includes a driving shaft 122, a coupling 124, a grinding head seat 126 and a rotating sleeve 128. The coupling 124 is connected to the driving shaft 122 and the grinding head seat 126. The rotating sleeve 128 is connected to the grinding head seat 126 and is sleeved on the driving shaft 122. The eccentric member 140 is transmission-connected to the rotating sleeve 128.

[0043] During operation, the driving shaft 122 can drive the grinding head seat 126 to rotate synchronously through the coupling 124. The rotating sleeve 128 is sleeved on the driving shaft 122 to play a protective role. At the same time, the rotating sleeve 128 can rotate synchronously with the driving shaft 122 and the grinding head seat 126.

[0044] refer to Figure 1 In order to improve the shock absorption effect, in order to provide a certain floating space at each connection (which can be understood as between the grinding head seat 126 and the coupling 124 and between the drive shaft 122 and the rotating sleeve 128), the driving member 120 can also include a buffer pad 129, which is arranged between the coupling 124 and the grinding head seat 126.

[0045] Specifically, the buffer pad 129 can include a large pad and a small pad. The large pad is arranged on one end of the coupling 124 close to the rotating sleeve 128 and is located on the inner side of the grinding head seat 126; the small pad is arranged at the threaded connection between the coupling 124 and the grinding head seat 126, thereby buffering and reducing shock at multiple positions between the coupling 124 and the grinding head seat 126.

[0046] It is worth noting that both the large pad and the small pad are made of elastic material, which has a certain elastic potential energy reserve. In this embodiment, both the large pad and the small pad are rubber pads.

[0047] refer to Figure 1 The eccentric swing polishing grinding head 100 also includes a transmission member 130, which sequentially meshes with a driving gear 132, an intermediate gear 134 and a driven gear 136. The driving gear 132 is sleeved on the rotating sleeve 128, and the eccentric member 140 is connected to the driven gear 136. The number of teeth of the driving gear 132 and the driven gear 136 are different.

[0048] During the transmission process, since there is a difference in the number of teeth between the driving gear 132 and the driven gear 136 , differential rotation can be achieved between the rotation of the eccentric 140 and the driving shaft 122 , thereby allowing the grinding block 190 to complete the swing motion at a normal frequency.

[0049] It should be noted that, normally, the number of teeth of the driven gear 136 is greater than that of the driving gear 132 to achieve reduction transmission; of course, the number of teeth of the driven gear 136 can also be less than that of the driving gear 132 to achieve acceleration transmission.

[0050] refer to Figure 1 The eccentric member 140 includes an eccentric seat 142 and a dial 144 . The eccentric seat 142 is connected to the driving member 120 and is used for eccentric rotation. The dial 144 is sleeved on the eccentric seat 142 and is used for revolving around the driving member 120 . The active swing member 160 is connected to the dial 144 .

[0051] Furthermore, a bearing may be provided between the eccentric seat 142 and the dial 144. When the eccentric seat 142 rotates, it will not drive the dial 144 to rotate on its own, but will cause the dial 144 to move in an arc on a horizontal plane. The arc motion trajectory of the dial 144 is a circle, the center of which coincides with the axis of the drive shaft 122, so that the dial 144 can revolve around the drive shaft 122.

[0052] refer to Figure 4 and Figure 5 The dial 144 has two guide slots 1441 disposed opposite each other. The two guide slots 1441 extend radially toward the center of the dial 144. There are two active swinging members 160, each housed in one of the two guide slots 1441. That is, during movement of the dial 144, the active swinging members 160 successively contact the sidewalls of the guide slots 1441, thereby driving the active swinging members 160 to swing.

[0053] It is worth noting that the active oscillating member 160 can be equipped with a pendulum shaft, which is connected to a sliding sleeve via a bearing. The width of the sliding sleeve is equal to the width of the guide groove 1441. The sliding sleeve is configured to engage and slide with the guide groove 1441. When the dial 144 moves, the guide groove 1441 drives the sliding sleeve to perform reciprocating planar motion along the guide groove 1441 in a horizontal plane, thereby driving the pendulum shaft to oscillate.

[0054] At the same time, in order to prevent the dial 144 from rotating with the driving shaft 122, two relatively arranged limiting holes 1443 can be opened on the dial 144. The eccentric swing polishing grinding head 100 also includes a limiting plate 125, which is connected to the driving member 120 and accommodated in the limiting hole 1443.

[0055] The limiting plate 125 can be connected to the grinding head seat 126 through the limiting shaft. The limiting shaft and the limiting plate 125 are eccentrically arranged relative to the limiting hole 1443. Through the limiting effect of the limiting hole 1443 and the limiting plate 125, the dial 144 can be further limited to rotate.

[0056] refer to Figure 3 The eccentric seat 142 includes an upper seat 1421 and a lower seat 1423. The upper seat 1421 is transmission-connected to the driving member 120. The dial 144 is sleeved on the upper seat 1421. The lower seat 1423 is concentrically arranged with the driving member 120. The upper seat 1421 is eccentrically arranged relative to the lower seat 1423.

[0057] At the same time, in order to enable the entire eccentric swinging polishing grinding head 100 to maintain dynamic balance as much as possible during the eccentric movement, the eccentric seat 142 can also include a counterweight block 146, and the counterweight block 146 is connected to the lower seat 1423. When the eccentric part of the upper seat 1421 relative to the lower seat 1423 is located on the left side of the lower seat 1423, the counterweight block 146 is located on the right side of the lower seat 1423.

[0058] An embodiment of the present invention also provides a polishing device, including an eccentric oscillating polishing grinding head 100, a power source and a control box, the control box is used to be electrically connected to various electrical components, the power source is used to be connected to the drive shaft 122 in the driving member 120 of the eccentric oscillating polishing grinding head 100, and the power source is used to provide power to drive the drive shaft 122 to rotate.

[0059] It is worth noting that the power source can specifically be a rotating motor, a rotating cylinder or a rotating hydraulic cylinder, and there is no limitation on the specific power form.

[0060] In summary, the eccentric oscillating polishing grinding head 100 and polishing equipment provided by the embodiments of the present invention have at least the following advantages:

[0061] (1) It can make any two adjacent grinding blocks 190 in the enclosed grinding blocks 190 swing in opposite directions and have the same swing angle, so that the resultant force of the friction formed by the swinging motion is zero, reducing the impact on each connection to reduce damage, thereby improving the service life of the eccentric swinging polishing grinding head 100.

[0062] (2) It can optimize the structure of the eccentric member 140, connect the counterweight block 146 to one side of the lower seat 1423, so that the lower seat 1423 and the counterweight block 146 are balanced with the upper seat 1421, thereby enabling the eccentric member 140 to improve the stability of the overall eccentric swinging polishing grinding head 100 during rotation during eccentric movement.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An eccentric swing polishing grinding head, characterized in that: include: A driving member (120), an eccentric member (140), an active swing member (160), a driven swing member (180), and a grinding block (190); The eccentric member (140) is transmission-connected to the driving member (120) and is used to drive the active swing member (160) to perform a swinging motion. Each active swing member (160) is transmission-connected to the driven swing member (180). The total number of the active swing members (160) and the driven swing members (180) is an even number. The active swing members (160) and the driven swing members (180) are arranged in an enclosed manner. Each active swing member (160) and each driven swing member (180) is connected to the grinding block (190).

2. The eccentric swing polishing grinding head according to claim 1, characterized in that: The eccentric member (140) includes an eccentric seat (142) and a dial (144); the eccentric seat (142) is connected to the driving member (120) and is used for eccentric rotation; the dial (144) is sleeved on the eccentric seat (142) and is used for orbiting around the driving member (120); and the active swing member (160) is connected to the dial (144).

3. The eccentric swing polishing grinding head according to claim 2, characterized in that: The dial (144) is provided with two guide grooves (1441) arranged opposite to each other. The two guide grooves (1441) respectively extend along a radial direction close to the center of the dial (144). There are two active swinging members (160) and they are respectively accommodated in the two guide grooves (1441).

4. The eccentric swing polishing grinding head according to claim 2, characterized in that: The dial (144) is provided with two limiting holes (1443) arranged opposite to each other. The eccentric swing polishing grinding head further comprises a limiting plate (125). The limiting plate (125) is connected to the driving member (120) and accommodated in the limiting holes (1443).

5. The eccentric swing polishing grinding head according to claim 2, characterized in that: The eccentric seat (142) includes an upper seat (1421) and a lower seat (1423), wherein the upper seat (1421) is transmission-connected to the driving member (120), the dial (144) is sleeved on the upper seat (1421), the lower seat (1423) is concentrically arranged with the driving member (120), and the upper seat (1421) is eccentrically arranged relative to the lower seat (1423).

6. The eccentric swing polishing grinding head according to claim 5, characterized in that: The active swing member (160) is provided with an active swing tooth (161), and the driven swing member (180) is provided with a driven swing tooth (181), and the active swing tooth (161) is meshed with the driven swing tooth (181).

7. The eccentric swing polishing grinding head according to any one of claims 1 to 6, characterized in that: The driving member (120) includes a driving shaft (122), a coupling (124), a grinding head seat (126) and a rotating sleeve (128); the coupling (124) is connected to the driving shaft (122) and the grinding head seat (126); the rotating sleeve (128) is connected to the grinding head seat (126) and is sleeved on the driving shaft (122); and the eccentric member (140) is transmission-connected to the rotating sleeve (128).

8. The eccentric swing polishing grinding head according to claim 7, characterized in that: The driving member (120) further includes a buffer pad (129), and the buffer pad (129) is arranged between the coupling (124) and the grinding head seat (126).

9. The eccentric swing polishing grinding head according to claim 7, characterized in that: The eccentric swing type polishing grinding head further comprises a transmission member (130), wherein the transmission member (130) sequentially meshes with a driving gear (132), an intermediate gear (134) and a driven gear (136), wherein the driving gear (132) is sleeved on the rotating sleeve (128), and the eccentric member (140) is connected to the driven gear (136), and the number of teeth of the driving gear (132) and the driven gear (136) are different.

10. A polishing device, characterized in that: The invention comprises the eccentric swing polishing grinding head according to any one of claims 1 to 9.

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