Closed long-shaft polishing machine

Abstract

The utility model discloses a closed type long shaft polishing machine which comprises a material conveying frame, the material conveying frame is sequentially provided with a feeding section, a polishing section and a discharging section in the conveying direction, the polishing section is arranged in a polishing box chamber, a grinding machine matched with the polishing section for polishing is arranged in the polishing box chamber, and the material conveying frame comprises a fixed platform and a sliding platform. The sliding platform can move in the width direction of the material conveying frame, a plurality of driving wheels are arranged on the fixed platform, a plurality of driven wheels are arranged on the sliding platform, the driving wheels and the driven wheels are matched to support and drive the long shaft to move, the driven wheels are arranged on an angle swing support, and a swing arm plate is arranged at the bottom of the angle swing support. Positioning columns are arranged on the sliding platform corresponding to the swing arm plates, the swing arm plates are arranged on the positioning columns in a sleeving mode and locked through fixing nuts, and a linkage arm is arranged between every two adjacent swing arm plates. The device has the advantages of being convenient to adjust, wide in application range, low in operation difficulty, stable and reliable in operation and free of dust blocking.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft workpiece processing, and particularly relates to a closed long shaft polishing machine. Background Art

[0002] The surface polishing of a long shaft is an important technological process, which can improve the surface quality and accuracy of the long shaft to enhance the quality.

[0003] During the polishing process, a grinding wheel is required to cooperate. The grinding wheel feeds to process the surface of the long shaft. Generally, the movement of the polishing head of a conventional polishing machine uses a guide pillar or a dovetail slide structure. Driven by power, the grinding wheel moves in the direction guided by the guide pillar or the track to achieve grinding and polishing. And the polishing device is arranged on one side of the conveyor line. The conveyor line uses driven wheels and driving wheels to cooperate to support and drive the long shaft to move. The installation angle between the driven wheel and the driving wheel determines the feeding and discharging speeds of the long shaft, and the installation distance between the driven wheel and the driving wheel determines the applicable range of the long shaft diameter size.

[0004] The following problems still exist in the existing equipment:

[0005] 1. During the polishing process, metal dust will be generated. Most of the metal dust can be processed by the dust removal equipment, while a small part of the dust will adhere to the equipment mechanism and accumulate continuously. As a result, when the grinding wheel moves on the guide pillar or the track, a jamming phenomenon occurs, which greatly affects the movement of the grinding wheel. There are many fault points and frequent maintenance is required;

[0006] 2. The positions of the driven wheel and the driving wheel are fixed, and the applicable range for long shafts of different sizes is small;

[0007] 3. Each driven wheel is independent. When adjusting the installation angle, independent adjustment is required, and operations such as pulling wires are used, resulting in low adjustment efficiency and extreme complexity. Summary of the Invention

[0008] The technical problem to be solved by the utility model is to provide a closed long shaft polishing machine, which has the advantages of convenient adjustment, wide applicable range, greatly reduced operation difficulty, and stable and reliable operation, and will not have the problem of dust jamming.

[0009] To solve the above technical problems, the present utility model provides a closed long-axis polishing machine, which includes a material conveying rack. The material conveying rack is sequentially arranged as a feeding section, a polishing section, and a discharging section along the conveying direction. The polishing section is arranged in a polishing chamber, and a grinding wheel for cooperating with the polishing section for polishing is arranged in the polishing chamber. The material conveying rack includes a fixed platform and a sliding platform. The sliding platform can move in the width direction of the material conveying rack. A plurality of driving wheels are arranged on the fixed platform, and a plurality of driven wheels are arranged on the sliding platform. The driving wheels and the driven wheels cooperate to support and drive the long axis to move. The driven wheels are arranged on an angle swing bracket. A swing arm plate is arranged at the bottom of the angle swing bracket. A positioning column is arranged on the sliding platform corresponding to the swing arm plate. The swing arm plate is sleeved on the positioning column and locked by a fixing nut. A linkage arm is arranged between adjacent two swing arm plates.

[0010] Further, the grinding wheel is fixedly arranged on a swing base. One end of the swing base is connected to a frame platform through a first shaft connecting seat. A power shaft is arranged at the other end of the swing base. A transmission sleeve is arranged on the power shaft. One end of a lifting rod of an electric elevator is connected to the transmission sleeve. The electric elevator is connected to the frame platform through a second shaft connecting seat.

[0011] Further, the swing base is arranged on one side of the polishing section. A partition plate is arranged between the swing base and the polishing section. An avoidance hole is arranged on the partition plate.

[0012] Further, a plurality of driving wheels are arranged on a driving shaft. The driving shaft is connected to a driving motor through a chain transmission assembly. The driving shaft is arranged on the fixed platform through a plurality of bearing seats.

[0013] Further, a plurality of screw rod slides are arranged at the bottom of the sliding platform. A worm and worm gear transmission assembly is arranged at the end of the screw rod of the screw rod slide. A synchronizing rod is arranged between adjacent two worm and worm gear transmission assemblies.

[0014] Further, U-shaped joints are arranged at both ends of the linkage arm. The U-shaped joints are axially connected to the swing arm plate.

[0015] Further, a dust collecting pipe is arranged at the top of the polishing chamber. The dust collecting pipe is connected to a dust collector.

[0016] Further, a box door and a controller are arranged on the front surface of the polishing chamber.

[0017] The beneficial effects of the present utility model:

[0018] 1. Multiple driven wheels are arranged on the sliding platform. The sliding platform can move relative to the fixed platform, enabling all the driven wheels to open and close synchronously, move away from or approach the driving wheel, thus meeting the usage requirements for different workpiece outer diameters and adapting to a wide range of workpiece outer diameters.

[0019] 2. The driven wheels are rotatably installed on the sliding platform by angle swing brackets, and the angle swing brackets are connected by swing arm plates and linkage arms. When adjusting the installation angle, a synchronous rotation effect is formed among all the driven wheels. Therefore, there is no need to adjust one by one, the operation is convenient, the efficiency is greatly improved, and the adjustment can be quickly carried out to achieve the adjustment effect of the traveling speed of workpieces with different outer diameters.

[0020] 3. A polishing chamber is used to cover the processing area. By using a dust collector, the dust particles generated during the processing are effectively concentrated and treated, improving the cleanliness of the processing environment. Coupled with the setting of the partition plate, the pollution of the dust particles to the swing power part mechanism of the grinding wheel is reduced.

[0021] 4. The grinding wheel moves in a swinging manner, and its fulcrums are all bearings. It is not easy for dust to enter the inside of the bearings, and when the bearings rotate, it is rolling friction and the wear is also small. Therefore, while meeting the processing feed, it ensures the stability of operation and effectively eliminates the problem of movement jamming caused by dust accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the present utility model;

[0023] Figure 2 is the partial structural schematic diagram of the material conveyor of the present utility model;

[0024] Figure 3 is the partial structural schematic diagram of the driving part of the driving wheel of the present utility model;

[0025] Figure 4 is the partial structural schematic diagram of the installation part of the driven wheel of the present utility model;

[0026] Figure 5 is the internal structural schematic diagram of the polishing chamber of the present utility model;

[0027] Figure 6 is the partial structural schematic diagram of the swinging mechanism of the grinding wheel of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further illustrates the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0029] Refer toFigures 1 to 4 As shown in Figures 1 to 4 , an embodiment of the closed long-axis polishing machine of the present utility model includes a material conveying rack 1. The material conveying rack is sequentially arranged as a feeding section 111, a polishing section 112, and a discharging section 113 along the conveying direction. The polishing section is arranged in a polishing box chamber 2, and a grinding wheel 3 for cooperating with the polishing section for polishing is arranged in the polishing box chamber. During use, the long-axis material is placed on the feeding section of the material conveying rack. The material conveying rack drives the long axis to rotate and move axially, and enters the polishing section. In the polishing section, the material conveying rack functions to support the long axis under the grinding wheel and drive the long axis to continue moving. After the grinding wheel is started, it contacts and cooperates with the long axis that rotates while moving to perform the polishing operation.

[0030] The above-mentioned material conveying rack has the functions of supporting and driving the long axis. When the diameter of the long axis changes and the moving speed of the long axis needs to be changed, the material conveying rack needs to be adjusted. Therefore, a structure that is convenient for adjustment and operation is proposed. The material conveying rack includes a fixed platform 15 and a sliding platform 16. The sliding platform can move in the width direction of the material conveying rack. A plurality of driving wheels 17 are arranged on the fixed platform, and a plurality of driven wheels 18 are arranged on the sliding platform. The driving wheels and the driven wheels cooperate to support and drive the long axis to move. The sliding platform can drive the driven wheels to move, that is, to approach or move away from the driving wheels, so as to adapt to use under different diameters of the long axis and ensure that the long axis is conveyed at a height suitable for polishing. The plurality of driving wheels are arranged on a driving shaft 19. The driving shaft is connected to a driving motor through a chain transmission assembly 20. The driving shaft is arranged on the fixed platform through a plurality of bearing seats 22. The chain transmission assembly can drive the driving shaft to rotate, that is, drive the driving wheels fixed on the driving shaft to rotate, and the plurality of driving wheels rotate synchronously.

[0031] The rotation of the driving wheel will drive the long axis to rotate. For the movement of the long axis, the driven wheels need to be arranged at an inclined angle, so as to achieve the axial movement effect while the long axis rotates. The moving speed is determined by the angle between the driven wheel and the driving wheel. Therefore, the driven wheels are arranged on an angle swing bracket 23. A swing arm plate 24 is arranged at the bottom of the angle swing bracket. A positioning post 25 is arranged on the corresponding sliding platform of the swing arm plate. The swing arm plate is sleeved on the positioning post and locked by a fixing nut 26. After the swing arm plate is sleeved on the positioning post, it is limited in the horizontal direction and can only rotate on the positioning post. When locked by the fixing nut, the swing arm plate is effectively fixed and cannot rotate, that is, the relative inclined angle between the driven wheel and the driving wheel is fixed, and the operation is convenient. When adjusting, the position of the driven wheel does not move.

[0032] Since each driven wheel needs to be adjusted simultaneously when adjusting the angle of the driven wheel, a linkage arm 27 is provided between two adjacent swing arm plates. When adjusting the angle of one driven wheel, the linkage arm will swing, and the movement of the current linkage arm will pull the next swing arm plate to move synchronously, so as to achieve the effect of adjusting all driven wheels simultaneously by adjusting one driven wheel. The size of the linkage arm is the distance between two adjacent driven wheels, and at this time, the position angles of the driven wheels can be ensured to be consistent. Specifically, when adjustment is required, loosen the fixing nuts corresponding to all driven wheels, then rotate one driven wheel, and the rest of the driven wheels will move synchronously through the pulling of the linkage arm. After reaching the adjusted angle position, lock the swing arm plate with the fixing nuts. The operation is convenient and the efficiency is greatly improved.

[0033] For the movement of the above-mentioned sliding platform, a plurality of lead screw stages 28 are provided at the bottom of the sliding platform. A worm and worm gear transmission assembly 29 is provided at the end of the lead screw of the lead screw stage. A synchronizing rod 30 is provided between two adjacent worm and worm gear transmission assemblies. Each lead screw stage is correspondingly equipped with a worm and worm gear transmission assembly. The worm and worm gear transmission assembly changes the transmission direction. The worms in the worm and worm gear transmission assemblies are connected in series through the synchronizing rod to achieve the effect of synchronous rotation. When the worm is rotated, a plurality of worm and worm gear transmission assemblies all rotate simultaneously, so as to achieve the effect of synchronous movement of a plurality of lead screw stages. The operation is convenient and reliable, and the adjustment efficiency is improved.

[0034] Refer to Figure 5 and Figure 6 As shown in the figure, the grinding wheel machine is fixedly arranged on the swing base 5. One end of the swing base is connected to the frame platform 4 through the first shaft connecting seat 6. A power shaft 7 is arranged at the other end of the swing base. A transmission sleeve 8 is arranged on the power shaft. One end of the lifting rod of the electric elevator 9 is connected to the transmission sleeve. The electric elevator is connected to the frame platform through the second shaft connecting seat 10.

[0035] The movement of the grinding wheel machine is realized in a swinging form. Specifically, through the action of the electric elevator, the lifting rod is driven to extend. The extending lifting rod pushes the power shaft upward through the transmission sleeve, that is, pushes one end of the swing base upward. Since the other end of the swing base is connected to the first shaft connecting seat, the upward movement is transformed into an upward and rotational movement along the shaft connecting part, thereby driving the grinding wheel of the grinding wheel machine to perform a swinging motion. The grinding wheel of the grinding wheel machine can contact the long shaft to achieve polishing. The power shaft can be connected to the swing base through a bearing. The transmission sleeve can be sleeved on the power shaft to achieve a smaller frictional force during the movement process, improve the service life, and avoid jamming problems.

[0036] When the machining is completed, the electric lift is reset, driving the lifting rod to descend and retract. The retracting lifting rod pulls the power shaft downward through the transmission sleeve, that is, pulls one end of the swing base downward. Since the other end of the swing base is connected to the first shaft connecting seat, the downward movement is transformed into a downward and rotational movement along the shaft connection, thereby driving the grinding wheel to reset. During the movement process, the position of the electric lift will change as the swing base rotates along the shaft connection. Therefore, the setting of the second shaft connecting seat can effectively adapt to its movement position.

[0037] In the above structure, bearings are used to achieve the support and rotation of each fulcrum, and it is not easy to have jamming problems.

[0038] Since dust is generated during the polishing process, the polishing section is placed in the polishing chamber. A dust collecting pipe 11 is provided at the top of the polishing chamber, and the dust collecting pipe is connected to a dust collector 12 to form an effect of centralized collection, ensuring a clean machining environment and reducing dust pollution. In order to reduce the influence of dust on the mechanism, the swing base is arranged on one side of the polishing section, that is, in the width direction. A partition 13 is arranged between the swing base and the polishing section, and an avoidance hole 14 is arranged on the partition. The partition can effectively block the dust generated during machining, and the dust can be sucked away in a smaller space. The grinding wheel part of the grinding wheel passes through the avoidance hole to the upper part of the polishing section.

[0039] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. A closed long-axis polishing machine, characterized in that, It includes a material conveyor rack, which is successively arranged as a feeding section, a polishing section and a discharging section along the conveying direction. The polishing section is arranged in a polishing chamber, and a grinding machine for cooperating with the polishing section for polishing is arranged in the polishing chamber. The material conveyor rack includes a fixed platform and a sliding platform. The sliding platform can move in the width direction of the material conveyor rack. A plurality of driving wheels are arranged on the fixed platform, and a plurality of driven wheels are arranged on the sliding platform. The driving wheels and the driven wheels cooperate to support and drive the long shaft to move. The driven wheels are arranged on an angular swing bracket, and a swing arm plate is arranged at the bottom of the angular swing bracket. A positioning column is arranged on the sliding platform corresponding to the swing arm plate. The swing arm plate is sleeved on the positioning column and locked by a fixing nut. A linkage arm is arranged between adjacent two swing arm plates.

2. The enclosed long-axis polishing machine according to claim 1, wherein The grinding machine is fixedly arranged on a swing base. One end of the swing base is connected to a frame platform through a first shaft connecting seat. A power shaft is arranged at the other end of the swing base. A transmission sleeve is arranged on the power shaft. The transmission sleeve is connected to one end of the lifting rod of an electric elevator. The electric elevator is connected to the frame platform through a second shaft connecting seat.

3. The enclosed long-axis polishing machine according to claim 2, wherein The swing base is arranged on one side of the polishing section, and a partition plate is arranged between the swing base and the polishing section. An avoidance hole is arranged on the partition plate.

4. The enclosed long-axis polishing machine according to claim 2, wherein, A plurality of driving wheels are arranged on a driving shaft. The driving shaft is connected to a driving motor through a chain transmission assembly. The driving shaft is arranged on the fixed platform through a plurality of bearing seats.

5. The enclosed long-axis polishing machine according to claim 1, characterized in that, A plurality of screw rod slides are arranged at the bottom of the sliding platform. A worm and worm gear transmission assembly is arranged at the end of the screw rod of the screw rod slide. A synchronizing rod is arranged between adjacent two worm and worm gear transmission assemblies.

6. The enclosed long-shaft polishing machine according to claim 1, wherein U-shaped joints are arranged at both ends of the linkage arm, and the U-shaped joints are axially connected to the swing arm plate.

7. The enclosed long-axis polishing machine according to claim 1, characterized in that A dust collecting pipe is arranged at the top of the polishing chamber, and the dust collecting pipe is connected to a dust collector.

8. The enclosed long-axis polishing machine according to claim 1, characterized in that, A box door and a controller are arranged on the front surface of the polishing chamber.

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