A lift assembly for a panel sander

Abstract

The utility model relates to polishing equipment technical field discloses a kind of panel polisher's lifting assembly, including lifting platform, lifting seat and drive mechanism, lifting seat is along the circumferential arrangement of lifting platform, lifting seat is equipped with seat body and transmission assembly, seat body, drive mechanism are all fixed with rack, transmission assembly is movably connected with seat body, the top and bottom of seat body are respectively stretched out to the both ends of transmission assembly, the bottom of transmission assembly is movably connected with lifting platform, drive mechanism is connected with the top of each transmission assembly by same transmission belt or transmission chain, to synchronously drive each transmission assembly relative seat body rotation and lifting.The lifting assembly of the utility model is good in lifting stability, and is applicable to small size panel processing when grinding head assembly lifting.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a lifting assembly for a panel polishing machine. Background Technology

[0002] During the processing of sheet materials, surface grinding and polishing are often required. Compared to large-size panels, small-size panels generally require higher processing precision. Most existing panel grinding machines have conveyor mechanisms suitable for large-size panel processing. For small-size panels, the grinding heads are smaller and more numerous; to ensure the required precision, it is essential to ensure smooth lifting and lowering of each grinding head.

[0003] Therefore, it is necessary to develop a lifting assembly for a panel grinding machine with good lifting stability for high-precision small-sized panel grinding. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lifting assembly for a panel grinding machine, which has good lifting stability and is suitable for lifting the grinding head assembly when processing small-sized panels.

[0005] To solve the above-mentioned technical problems, this utility model provides a lifting assembly for a panel polishing machine, including a lifting platform, a lifting seat, and a drive mechanism. The lifting seat is arranged circumferentially along the lifting platform. The lifting seat is provided with a base and a transmission assembly. The base and the drive mechanism are both fixed to the frame. The transmission assembly is movably connected to the base. The two ends of the transmission assembly extend to the top and bottom of the base, respectively. The bottom of the transmission assembly is movably connected to the lifting platform. The drive mechanism is connected to the top of each transmission assembly through the same transmission belt or transmission chain to synchronously drive each transmission assembly to rotate and lift relative to the base.

[0006] As an improvement to the above solution, the transmission assembly includes a lifting shaft and a driven sprocket. The two ends of the lifting shaft extend to the top and bottom of the base respectively. The top of the lifting shaft is fixed to the driven sprocket. The bottom of the lifting shaft is provided with a limiting post that is movably connected to the lifting platform. The limiting post rotates and rises and falls with the lifting shaft, thereby driving the lifting platform to rise and fall.

[0007] As an improvement to the above solution, multiple grinding heads are arranged horizontally below the lifting platform.

[0008] As an improvement to the above solution, the frame is provided with a first installation space and a second installation space, the second installation space is located below the first installation space, a crossbeam assembly is provided between the first installation space and the second installation space, the drive mechanism is located in the first installation space, the lifting seat and the drive mechanism are both connected to the crossbeam assembly, and the lifting platform and the grinding head are both located in the second installation space.

[0009] As an improvement to the above solution, the lifting seats are arranged in a circumferential array on the lifting platform, the drive mechanism is set off from the center of the array of each lifting seat, the power output end of the drive mechanism is provided with a drive sprocket, and the transmission chain is wound around the drive sprocket and the driven sprocket of each lifting seat.

[0010] As an improvement to the above solution, the drive sprocket is symmetrically arranged between the two driven sprockets, and the transmission chain that passes around the drive sprocket is sequentially connected to the driven sprocket away from the drive sprocket and the driven sprocket close to the drive sprocket.

[0011] As an improvement to the above scheme, along the winding direction of the transmission chain, the distance between the driving sprocket and the adjacent driven sprocket is equal to the distance between two adjacent driven sprockets.

[0012] As an improvement to the above solution, the frame is also provided with a tension sprocket, and the driven sprocket passes around the tension sprocket.

[0013] As an improvement to the above solution, the tensioning sprocket is connected to the strip hole, and driving the tensioning sprocket to move within the strip hole can adjust the tension of the transmission chain.

[0014] As an improvement to the above solution, the driving mechanism is a worm gear reducer motor. The housing of the worm gear reducer motor is equipped with a bracket. The power output shaft of the worm gear reducer motor is connected to an encoder through a coupling. The encoder is fixed to the bracket.

[0015] Implementing this utility model has the following beneficial effects:

[0016] This utility model discloses a lifting assembly for a panel grinding machine. By arranging lifting seats in a circumferential array on the lifting platform, the seat body of the lifting seat is fixed to the frame, and the transmission components of the lifting seat extend to the top and bottom of the seat body. The bottom of the transmission components is movably connected to the lifting platform, and the top of each transmission component is driven by the same drive mechanism through the same transmission belt or transmission chain, so that the movement of each transmission component is consistent, realizing the smooth lifting of the lifting platform. The grinding head assembly is connected to the lifting platform, which can be used for high-precision processing of small-sized panels. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the first embodiment of the lifting assembly of the panel polishing machine of this utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the lifting assembly and the frame;

[0019] Figure 3 This is a cross-sectional view of the lifting assembly mounted on the frame. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, this utility model discloses a first embodiment of a lifting assembly for a panel polishing machine, including a lifting platform 1, a lifting seat 2, and a drive mechanism 3. The lifting seat 2 is arranged circumferentially along the lifting platform 1. The lifting seat 2 is provided with a seat body 21 and a transmission assembly. The seat body 21 and the drive mechanism 3 are both fixed to the frame 4. The transmission assembly is movably connected to the seat body 21. The two ends of the transmission assembly extend to the top and bottom of the seat body 21, respectively. The bottom of the transmission assembly is movably connected to the lifting platform 1. The drive mechanism 3 is connected to the top of each transmission assembly through the same transmission belt or transmission chain 4 to synchronously drive each transmission assembly to rotate and lift relative to the seat body 21.

[0022] In this embodiment, lifting seats 2 are arranged in a circumferential array on the lifting platform 1, so that the seat body 21 of the lifting seat 2 is fixed to the frame 4, and the transmission components of the lifting seat 2 extend to the top and bottom of the seat body 21. The bottom of the transmission components is movably connected to the lifting platform 1, and the top of each transmission component is driven by the same drive mechanism 3 through the same transmission belt or transmission chain 4, so that the movement of each transmission component is consistent, and the lifting platform 1 is lifted and lowered smoothly. The grinding head assembly is connected to the lifting platform 1, which can be used for high-precision processing of small-sized panels.

[0023] The grinding head assembly described in this embodiment includes multiple grinding heads arranged horizontally below the lifting platform 1. Since the lifting platform 1 moves smoothly, each grinding head can maintain the same horizontal grinding surface when it moves up and down, ensuring the uniformity and consistency of the processing of small-sized panels.

[0024] Specifically, the frame 5 has a first installation space A and a second installation space B located below the first installation space A. A crossbeam assembly 51 is provided between the first installation space A and the second installation space B. The crossbeam assembly 51 is composed of crisscrossing crossbeams. The drive mechanism 3 is located in the first installation space A. The lifting seat 2 and the drive mechanism 3 are both connected to the crossbeam assembly 51. The lifting platform 1 and the grinding head are both located in the second installation space B. This drive and installation structure avoids the center of gravity of the lifting platform 1 from being off-center and prevents the vibration of the drive mechanism 3 from being transmitted to the lifting platform 1, thus helping to improve the stability of the lifting platform 1.

[0025] The transmission assembly includes a lifting shaft 221 and a driven sprocket 222. The two ends of the lifting shaft 221 extend towards the top and bottom of the base 21, respectively. The top of the lifting shaft 221 is fixed to the driven sprocket 222. A limiting post 223, movably connected to the lifting platform 1, is provided at the bottom of the lifting shaft. The limiting post 223 rotates and rises and falls with the lifting shaft, thereby driving the lifting platform 1 to rise and fall. The limiting post 223 is connected to the lifting shaft 221 via a positioning pin, and a boss at the bottom of the limiting post 223 supports the lifting platform 1. The limiting post 223 can rotate freely relative to the lifting platform 1.

[0026] The drive mechanism 3 is preferably a worm gear reducer motor. The housing of the worm gear reducer motor is provided with a bracket 6. The power output shaft of the worm gear reducer motor is connected to an encoder 8 through a coupling 7. The encoder 8 is fixed to the bracket 6. The height of the lifting platform 1 can be precisely controlled by controlling the rotation of the drive sprocket 31.

[0027] Regarding the arrangement of the drive mechanism 3 and the lifting seats 2, in this embodiment, the lifting seats 2 are preferably arranged in a circumferential array on the lifting platform 1, and the drive mechanism 3 is positioned offset from the center of the array of lifting seats 2. The power output end of the drive mechanism 3 is provided with a drive sprocket 31, and the axes of the drive sprocket 31 and each driven sprocket 222 are vertically arranged. The transmission chain 4 is wound around the drive sprocket 31 and the driven sprockets 222 of each lifting seat 2. At the same time, the drive sprocket 31 is symmetrically arranged between two driven sprockets 222, and the transmission chain 4 passing around the drive sprocket 31 is sequentially connected to the driven sprocket 222 away from the drive sprocket 31 and the driven sprocket 222 close to the drive sprocket 31. Along the winding direction of the transmission chain 4, the distance between the drive sprocket 31 and the adjacent driven sprocket 222 in this embodiment is equal to the distance between two adjacent driven sprockets 222. This makes the tension of each segment of the transmission chain 4 closer, reducing the risk of individual driven sprockets 222 of the lifting platform 2 becoming loose from the transmission chain 4, which could lead to imbalance of the lifting platform 1.

[0028] In this embodiment, the frame 5 is also provided with a tension sprocket 9 for adjusting the tension of the transmission chain 4, and the driven sprocket 222 passes around the tension sprocket 9. In this embodiment, the tension sprocket 9 is connected to a slotted hole, and driving the tension sprocket 9 to move within the slotted hole can adjust the tension of the transmission chain 4.

[0029] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lifting assembly for a panel polishing machine, characterized in that, It includes a lifting platform, a lifting seat and a driving mechanism. The lifting seats are arranged circumferentially along the lifting platform. The lifting seat is provided with a seat body and a transmission component. The seat body and the driving mechanism are both fixed to the machine frame. The transmission component is movably connected to the seat body. Both ends of the transmission component extend towards the top and bottom of the seat body respectively. The bottom of the transmission component is movably connected to the lifting platform. The driving mechanism is connected to the top of each transmission component through the same transmission belt or transmission chain to synchronously drive each transmission component to rotate and lift relative to the seat body.

2. The lifting assembly of the panel polishing machine as described in claim 1, characterized in that, The transmission component includes a lifting shaft and a driven sprocket. Both ends of the lifting shaft extend towards the top and bottom of the seat body respectively. The top of the lifting shaft is fixed to the driven sprocket. A limiting column movably connected to the lifting platform is provided at the bottom of the lifting shaft. The limiting column rotates and lifts with the lifting shaft and drives the lifting platform to lift.

3. The lifting assembly of the panel polishing machine as described in claim 1, characterized in that, A plurality of grinding heads are horizontally arranged below the lifting platform.

4. The lifting assembly of the panel polishing machine as described in claim 3, characterized in that, The machine frame is provided with a first installation space and a second installation space. The second installation space is located below the first installation space. A crossbeam component is provided between the first installation space and the second installation space. The driving mechanism is arranged in the first installation space. The lifting seat and the driving mechanism are both connected to the crossbeam component. The lifting platform and the grinding heads are both arranged in the second installation space.

5. The lifting assembly of the panel polishing machine as described in claim 1, characterized in that, The lifting seats are arranged in a circumferential array on the lifting platform. The driving mechanism is arranged offset from the array center of each lifting seat. A driving sprocket is provided at the power output end of the driving mechanism. The transmission chain is wound around the driving sprocket and the driven sprockets of each lifting seat.

6. The lifting assembly of the panel polishing machine as described in claim 5, characterized in that, The driving sprocket is symmetrically arranged between two driven sprockets. The transmission chain passing around the driving sprocket is sequentially connected to the driven sprocket far from the driving sprocket and the driven sprocket close to the driving sprocket.

7. The lifting assembly of the panel polishing machine as described in claim 6, characterized in that, Along the winding direction of the transmission chain, the distance between the driving sprocket and the adjacent driven sprocket is equal to the distance between two adjacent driven sprockets.

8. The lifting assembly of the panel polishing machine as described in claim 5, characterized in that, A tensioning sprocket is further provided on the machine frame. The driven sprocket is wound around the tensioning sprocket.

9. The lifting assembly of the panel polishing machine as described in claim 8, characterized in that, The tensioning sprocket is connected to a strip-shaped hole. Driving the tensioning sprocket to move in the strip-shaped hole can adjust the tension of the transmission chain.

10. The lifting assembly of the panel polishing machine as described in claim 1, characterized in that, The driving mechanism is a worm gear reduction motor. A bracket is provided on the housing of the worm gear reduction motor. The power output shaft of the worm gear reduction motor is connected to an encoder through a coupling. The encoder is fixed to the bracket.

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