Small lifting and rotating mechanism and single-sided polishing machine

Abstract

The utility model discloses a small lifting rotary mechanism and single face grinding machine, wherein, a small lifting rotary mechanism, including the fixed seat of rotation installation, the linear cylinder of being located fixed seat upside and at least two vertical settings and the upper end of connecting in fixed seat downside guide rod, the lower end of each guide rod is connected with the center positioning seat simultaneously, the small lifting rotary mechanism still includes the bearing seat of vertical movement installation, each guide rod is sleeved in bearing seat simultaneously, the inboard rotation of bearing seat is connected with the rotary seat, the cylinder rod rotation of linear cylinder is connected in rotary seat, each guide rod is connected in rotary seat simultaneously and slides, the rotary cylinder of bearing seat still is installed, and the cylinder rod transmission of rotary cylinder is connected in rotary seat. The present application has the effect that the volume of the lifting rotary structure in the prior art can be improved, and the technical problem of the limitation of use in compact space exists.

Description

Technical Field

[0001] This application relates to the field of grinding machine technology, and in particular to a small lifting and rotating mechanism and a single-sided grinding machine. Background Technology

[0002] Single-sided grinding machines typically position the ceramic disc by placing a rotary positioning device on the outside and a lifting and rotating device in the center, using the rotational movement of the two-point clamping loading fixture. Existing single-sided grinding machines usually employ a dual-cylinder lifting mechanism plus a single-cylinder rotating structure, which is relatively heavy and bulky, occupying a significant amount of space and limiting its use in compact spaces. Utility Model Content

[0003] This application provides a small lifting and rotating mechanism and a single-sided grinding machine, which can improve the technical problem that the existing lifting and rotating structures are large in size and have limitations in use in compact spaces.

[0004] In a first aspect, this application provides a small lifting and rotating mechanism, which adopts the following technical solution:

[0005] A small lifting and rotating mechanism includes a rotatably mounted fixed base, a linear cylinder located on the upper side of the fixed base, and at least two vertically arranged guide rods with their upper ends connected to the lower side of the fixed base. The lower end of each guide rod is simultaneously connected to a central positioning seat. The small lifting and rotating mechanism also includes a vertically movable bearing seat, which is sleeved on each of the guide rods. A rotating seat is rotatably connected to the inner side of the bearing seat. The cylinder rod of the linear cylinder is rotatably connected to the rotating seat. Each guide rod is simultaneously slidably connected to the rotating seat. The bearing seat is also equipped with a rotating cylinder, and the cylinder rod of the rotating cylinder is drively connected to the rotating seat.

[0006] Optionally, the cylinder rod of the rotary cylinder is fixedly connected to a pull rod, the end of the pull rod is rotatably connected to a rocker arm, the end of the rocker arm away from the pull rod is fixedly connected to a connecting block, and the connecting block is fixedly connected to the center position of the rotary seat.

[0007] Optionally, the linear cylinder has an adapter rod coaxially mounted on its cylinder rod. The upper end of the adapter rod is rotatably connected to the cylinder rod of the linear cylinder, and the lower end is threaded to the connecting block.

[0008] Optionally, the adapter rod is pressed down on the swing arm.

[0009] Optionally, a sleeve is fixedly connected to the upper end of the adapter rod, and the sleeve is fitted onto the cylinder rod of the linear cylinder.

[0010] Optionally, a ball bearing is fixedly connected to the inner side of the bearing housing, and the inner side of the ball bearing is fixedly connected to the rotating seat.

[0011] Optionally, a lower retaining ring is fixedly connected to the lower inner side of the bearing housing, and a cover plate is detachably connected to the upper side of the bearing housing. The lower retaining ring and the cover plate are jointly positioned on the outer ring of the ball bearing. An upper retaining ring is fixedly connected to the upper outer side of the rotating seat, and an elastic retaining ring is detachably connected to the lower outer side. The upper retaining ring and the elastic retaining ring are jointly positioned on the inner ring of the ball bearing.

[0012] Optionally, each of the guide rods is fitted with a linear bearing, and each of the linear bearings is fixedly mounted on the rotating seat.

[0013] Optionally, the central positioning seat has an air passage; the small lifting and rotating mechanism also includes an air pipe arranged parallel to the guide rod, the upper end of the air pipe is connected to the fixed seat, the lower end is connected to the air passage, the middle end is fitted with the rotating seat with a gap, and the fixed seat is equipped with a pipe connector connected to the air pipe.

[0014] Secondly, this application provides a single-sided grinding machine, including the aforementioned small lifting and rotating mechanism.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] The small lifting and rotating mechanism of this application, by setting up a linear cylinder, a rotating seat and a rotary cylinder and other related structures, can provide a stable linear feed capability. At the same time, by adopting the structure of the rotating seat, the linear cylinder can maintain the lifting function, and the rotary cylinder can add a stable active rotation function. It can be used for production and processing, and improves the technical problem that the existing lifting and rotating structure is large in size and has limitations in use in compact spaces. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the small lifting and rotating mechanism of this utility model.

[0018] Figure 2 This is a partial sectional view of the small lifting and rotating mechanism of this utility model.

[0019] Figure 3 yes Figure 2 The first enlarged view of the area.

[0020] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0021] Figure 5 yes Figure 2 The second enlarged view of the area.

[0022] Explanation of reference numerals in the attached drawings: 1. Fixed seat; 11. Pipe connector; 2. Linear cylinder; 3. Guide rod; 31. Linear bearing; 4. Center positioning seat; 41. Center seat; 411. Air passage; 42. Connecting seat; 5. Bearing seat; 51. Lower retaining ring; 52. Cover plate; 6. Rotating seat; 61. Upper retaining ring; 62. Elastic retaining ring; 7. Rotary cylinder; 71. Pull rod; 72. Swing rod; 73. Connecting block; 74. Adapter rod; 75. Sleeve; 8. Ball bearing; 9. Air pipe. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a small lifting and rotating mechanism.

[0025] Reference Figure 1 and Figure 2 A small lifting and rotating mechanism includes a fixed base 1 rotatably mounted, a linear cylinder 2 located on the upper side of the fixed base 1, and at least two vertically arranged guide rods 3 with their upper ends connected to the lower side of the fixed base 1. The lower end of each guide rod 3 is simultaneously connected to a central positioning seat 4. The small lifting and rotating mechanism also includes a bearing seat 5 vertically movable, which is sleeved on each guide rod 3. A rotating seat 6 is rotatably connected to the inner side of the bearing seat 5. The cylinder rod of the linear cylinder 2 is rotatably connected to the rotating seat 6. Each guide rod 3 is simultaneously slidably connected to the rotating seat 6. The bearing seat 5 is also equipped with a rotating cylinder 7, whose cylinder rod is drively connected to the rotating seat 6.

[0026] In use, the fixed base 1 is rotated and installed on the machine base, and the bearing seat 5 is vertically moved and installed on the machine base. During processing, the linear cylinder 2 is started, driving the bearing seat 5, the rotating seat 6 and the rotary cylinder 7 to move vertically simultaneously under the guidance and limiting action of each guide rod 3. The rotary cylinder 7 can be started to drive the rotating seat 6 to rotate relative to the linear cylinder 2, and drive each guide rod 3 and the fixed base 1 to rotate simultaneously.

[0027] By setting up related structures such as linear cylinder 2, rotary seat 6, and rotary cylinder 7, a stable linear feed capability can be provided. At the same time, by adopting the structure of rotary seat 6, the linear cylinder 2 can maintain the lifting function, and the rotary cylinder 7 adds a stable active rotation function. It can be used for production and processing, and improves the technical problem that the existing lifting and rotating structure is large in size and has limitations in use in compact spaces.

[0028] The fixed base 1 has a through-open structure to allow the cylinder rod of the linear cylinder 2 to pass through.

[0029] The guide rod 3 can be two, three, four, or five, etc. The figure shows three rods.

[0030] In this embodiment, as a parallel arrangement, the rotation of the rotating base 6 can also be achieved by a motor, a driving gear coaxially fixedly connected to the output shaft of the motor, and a driven gear meshing with the driving gear, with the driven gear coaxially fixedly connected to the rotating base 6.

[0031] Based on the above embodiments, each guide rod 3 is fitted with a linear bearing 31, and each linear bearing 31 is fixedly installed on the rotary seat 6 so as to stably install the guide rod 3 on the rotary seat 6 through the linear bearing 31.

[0032] Reference Figures 3 to 5 The cylinder rod of the rotary cylinder 7 is fixedly connected to a pull rod 71. The end of the pull rod 71 is rotatably connected to a rocker arm 72 via a connecting shaft. The end of the rocker arm 72 away from the pull rod 71 is fixedly connected to a connecting block 73. The connecting block 73 is fixedly connected to the center position of the rotary seat 6.

[0033] Start the rotary cylinder 7 to drive the pull rod 71 to move forward or retract. With the connection of the swing rod 72 and the connecting block 73, the rotating seat 6 reciprocates, causing each guide rod 3 and the fixed seat 1 to reciprocate simultaneously.

[0034] A converter rod 74 is coaxially mounted on the cylinder rod of the linear cylinder 2. The upper end of the converter rod 74 is rotatably connected to the cylinder rod of the linear cylinder 2, and the lower end is threaded to the connecting block 73. The linear cylinder 2 and the connecting block 73 are connected through the converter rod 74.

[0035] Furthermore, the adapter rod 74 is pressed down on the swing rod 72 to ensure the stable installation of the swing rod 72 by utilizing the downward pressure of the adapter rod 74.

[0036] A sleeve 75 is fixedly connected to the upper end of the adapter rod 74. The sleeve 75 is sleeved on the cylinder rod of the linear cylinder 2 to limit and guide the cylinder rod of the linear cylinder 2 through the sleeve 75.

[0037] Reference Figures 3 to 5 A ball bearing 8 is fixedly connected to the inner side of the bearing housing 5, and the inner side of the ball bearing 8 is fixedly connected to the rotating seat 6. The rotating seat 6 can be rotated by means of the ball bearing 8.

[0038] A lower retaining ring 51 is fixedly connected to the lower inner side of the bearing housing 5, and a cover plate 52 is detachably connected to the upper side of the bearing housing 5. The lower retaining ring 51 and the cover plate 52 are jointly positioned on the outer ring of the ball bearing 8. An upper retaining ring 61 is fixedly connected to the upper outer side of the rotating seat 6, and an elastic retaining ring 62 is detachably connected to the lower outer side. The upper retaining ring 61 and the elastic retaining ring 62 are jointly positioned on the inner ring of the ball bearing 8.

[0039] The ball bearing 8 can be stably installed by means of the lower retaining ring 51, the cover plate 52, the upper retaining ring 61 and the elastic retaining ring 62.

[0040] Each guide rod 3 is fitted with a linear bearing 31, and each linear bearing 31 is fixedly mounted on the rotary seat 6. The guide rod 3 is stably mounted on the rotary seat 6 by means of the linear bearing 31.

[0041] Reference Figures 3 to 5 The central positioning seat 4 has an air passage 411; the small lifting and rotating mechanism also includes an air pipe 9 arranged parallel to the guide rod 3. The upper end of the air pipe 9 is connected to the fixed seat 1, the lower end is connected to the air passage 411, and the middle end is fitted with the rotating seat 6 with a gap. The fixed seat 1 is equipped with a pipe connector 11 that connects to the air pipe 9.

[0042] During processing, the pipe connector 11 is connected to the air source, and gas is drawn through the pipe connector 11, the air pipe 9 and the air passage 411, so that a local vacuum is formed below the center positioning seat 4, thereby realizing the function of vacuum clamping.

[0043] In this embodiment, the central positioning seat 4 includes a central seat 41 and a connecting seat 42 detachably connected to the upper side of the central seat 41. An air passage 411 is opened in the central seat 41. The connecting seat 42 has a downward opening structure and forms an installation space. Screws are installed in this installation space, and bolts are used to connect and fix it to the guide rod 3. In use, the ceramic disc can be installed on the lower side of the central seat 41 by vacuum clamping.

[0044] This application also discloses a single-sided grinding machine, including the aforementioned small lifting and rotating mechanism.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A small lifting and rotating mechanism, characterized in that: The small lifting and rotating mechanism includes a fixed base (1) that is rotatably mounted, a linear cylinder (2) located on the upper side of the fixed base (1), and at least two guide rods (3) that are vertically arranged and whose upper ends are connected to the lower side of the fixed base (1). The lower end of each guide rod (3) is connected to a center positioning seat (4). The small lifting and rotating mechanism also includes a bearing seat (5) that is vertically movable. The bearing seat (5) is sleeved on each of the guide rods (3). A rotating seat (6) is rotatably connected to the inner side of the bearing seat (5). The cylinder rod of the linear cylinder (2) is rotatably connected to the rotating seat (6). Each guide rod (3) is slidably connected to the rotating seat (6). The bearing seat (5) is also equipped with a rotating cylinder (7). The cylinder rod of the rotating cylinder (7) is drivenly connected to the rotating seat (6).

2. The small lifting and rotating mechanism according to claim 1, characterized in that: The cylinder rod of the rotary cylinder (7) is fixedly connected to a pull rod (71), and the end of the pull rod (71) is rotatably connected to a rocker arm (72). The end of the rocker arm (72) away from the pull rod (71) is fixedly connected to a connecting block (73), and the connecting block (73) is fixedly connected to the center position of the rotary seat (6).

3. A small lifting and rotating mechanism according to claim 2, characterized in that: The linear cylinder (2) has a connecting rod (74) coaxially mounted on its cylinder rod. The upper end of the connecting rod (74) is rotatably connected to the cylinder rod of the linear cylinder (2), and the lower end is threaded to the connecting block (73).

4. A small lifting and rotating mechanism according to claim 3, characterized in that: The adapter rod (74) is pressed down on the swing rod (72).

5. A small lifting and rotating mechanism according to claim 3, characterized in that: The upper end of the adapter rod (74) is fixedly connected to a sleeve (75), and the sleeve (75) is sleeved on the cylinder rod of the linear cylinder (2).

6. A small lifting and rotating mechanism according to claim 1, characterized in that: A ball bearing (8) is fixedly connected to the inner side of the bearing housing (5), and the inner side of the ball bearing (8) is fixedly connected to the rotating seat (6).

7. A small lifting and rotating mechanism according to claim 6, characterized in that: A lower retaining ring (51) is fixedly connected to the lower inner side of the bearing housing (5), and a cover plate (52) is detachably connected to the upper side of the bearing housing (5). The lower retaining ring (51) and the cover plate (52) are positioned together on the outer ring of the ball bearing (8). An upper retaining ring (61) is fixedly connected to the upper outer side of the rotating seat (6), and an elastic retaining ring (62) is detachably connected to the lower outer side. The upper retaining ring (61) and the elastic retaining ring (62) are positioned together on the inner ring of the ball bearing (8).

8. A small lifting and rotating mechanism according to any one of claims 1-7, characterized in that: Each of the guide rods (3) is fitted with a linear bearing (31), and each of the linear bearings (31) is fixedly mounted on the rotating seat (6).

9. A small lifting and rotating mechanism according to any one of claims 1-7, characterized in that: The central positioning seat (4) has an air passage (411); the small lifting and rotating mechanism also includes an air pipe (9) arranged parallel to the guide rod (3), the upper end of the air pipe (9) is connected to the fixed seat (1), the lower end is connected to the air passage (411), the middle end is fitted with the rotating seat (6), and the fixed seat (1) is equipped with a pipe connector (11) connected to the air pipe (9).

10. A single-sided grinding machine, characterized in that: Includes the small lifting and rotating mechanism as described in any one of claims 1-9.

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