Multi-station synchronous transmission device and polishing machine

Abstract

The multi-station synchronous transmission device comprises a plurality of first speed reducers which are arranged in a straight line, every two adjacent first speed reducers are in transmission connection through a first connecting shaft, a first driving source is fixedly installed on the first speed reducer located on the outermost side, and a second driving source is fixedly installed on the second speed reducer located on the outermost side. A right-angle steering gear is fixedly mounted on the top surface of each first speed reducer, and the first driving source directly drives the first speed reducers to synchronously work so as to drive the right-angle steering gear on each first speed reducer to rotate; a second driving source for driving the right-angle steering gear to work is fixedly mounted at the bottom of the first speed reducer; the second driving source and the right-angle steering gear are located on the upper side and the lower side of the first speed reducer, the first driving source and the first speed reducer are directly connected, the response speed is high, the transmission efficiency is higher, and the dynamic performance is excellent; meanwhile, the rotating speed of the right-angle steering gear can be quickly obtained according to the rotating speed of the first driving source and the reduction ratio of the first reducer.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machines, in particular to a multi-station synchronous transmission device and a polishing machine. Background Art

[0002] Many products require grinding, polishing and other processes during the production process. As enterprises have higher and higher requirements for production and processing efficiency, existing grinding and polishing equipment are equipped with multiple stations to improve work efficiency. For example, a polishing robot is a multi-station equipment that requires multiple stations to move synchronously. The existing polishing robot design does not take into account the simplicity and efficiency of the transmission. It often uses a motor connected to each station to drive separately. The multi-station synchronization device during the polishing process requires synchronization and reliability of rotation. This method has poor synchronization performance and high cost.

[0003] A Chinese patent with publication number CN215547631U discloses a multi-station transmission device, including a motor, a transmission mechanism, and multiple reducers. The input shaft of the transmission mechanism and the reducer is perpendicular to the output shaft; the rotating shaft of the motor is connected to the input shaft of the transmission mechanism, and the output shaft of the transmission mechanism is connected to the input shaft of all reducers, and the output shaft of the reducer is provided with a mounting position for fixing the workpiece; the motor drives the input shafts of multiple reducers to rotate through the transmission mechanism, thereby driving the workpieces on multiple reducers to rotate synchronously. The technical solution of the utility model connects the motor with the transmission mechanism to change the direction of the rotating shaft, and drives the workpieces on multiple reducers to rotate synchronously through the transmission mechanism, thereby realizing the synchronous drive of multiple workpieces to be polished, the equipment structure is compact, the synchronization of each station is improved, and the polishing efficiency is also improved. In the above scheme, the motor drives the input shafts of multiple reducers to rotate through the transmission mechanism. At the same time, it can be seen from the description of the above patent that the transmission mechanism is a worm gear reducer, from which it can be seen that the transmission mechanism and the reducer are connected in series. There is another motor to drive. However, when the reducers are connected in series, the torque has to go through two conversions, and each time a certain transmission efficiency is lost, resulting in lower transmission efficiency of the motor. There is also a shaft between the two reducers, and the bearings of the reducers often cannot overlap. This requires that the force on the two shafts is relatively uniform, otherwise the bearings will bear uneven loads, resulting in shortened life or other problems. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-station synchronous transmission device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-station synchronous transmission device, including a plurality of first reducers arranged in a straight line, two adjacent first reducers are connected by a first connecting shaft, a first driving source is fixedly installed on the outermost first reducer, a right-angle steering gear is fixedly installed on the top surface of each first reducer, the first driving source directly drives the plurality of first reducers to work synchronously, thereby driving the right-angle steering gear on each first reducer to rotate; a second driving source that drives the right-angle steering gear to work is fixedly installed on the bottom of the first reducer; the second driving source and the right-angle steering gear are located on the upper and lower sides of the first reducer.

[0006] Compared with the prior art, the direct connection between the first drive source and the first reducer has a fast response speed, higher transmission efficiency and excellent dynamic performance; at the same time, the speed of the right-angle steering gear can be quickly obtained according to the speed of the first drive source combined with the reduction ratio of the first reducer.

[0007] As a preferred technical solution of the present utility model, the first connecting shaft is connected to the input end of the first reducer via a coupling.

[0008] As a preferred technical solution of the utility model, a fixture for clamping a workpiece is fixedly installed on the output end of the right-angle diverter.

[0009] As the preferred technical solution of the utility model, each first reducer is provided with a transmission shaft for driving the right-angle steering gear. The transmission shaft runs through the first reducer, one end of the transmission shaft is fixedly connected to the input end of the right-angle steering gear; the other end of the transmission shaft is fixedly connected to the second driving source.

[0010] As the preferred technical solution of the utility model, a fixed shaft is fixedly connected to the output end of the first reducer, a connecting flange is installed at the end of the fixed shaft, and the right-angle steering gear is fixedly connected to the connecting flange; a penetrating through hole is provided in the middle of the fixed shaft; and the transmission shaft is located in the through hole.

[0011] As a preferred technical solution of the utility model, a rolling bearing is fixedly installed in the insertion hole, and the transmission shaft is fixedly connected to the rolling bearing.

[0012] As the preferred technical solution of the utility model, a fixed flange is provided at the bottom of the first reducer, and the second drive source is fixedly installed on the fixed flange. The second drive source is a servo motor, and the output end of the servo motor is fixedly connected to the transmission shaft through a coupling, and the coupling is located in the fixed flange.

[0013] As the preferred technical solution of the utility model, the second driving source is a second reducer, which is fixedly mounted on a fixed flange; two adjacent second reducers are transmission connected via a second connecting shaft, and a third driving source is fixedly mounted on the outermost second reducer, and the output end of the third driving source is fixedly connected to the input end of the second reducer.

[0014] The utility model also provides a polishing machine, comprising the above-mentioned multi-station synchronous transmission device.

[0015] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the advantages brought by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded stereoscopic schematic diagram of the first embodiment of the utility model.

[0017] Figure 2 It is an exploded stereoscopic schematic diagram of a single transmission part of the first embodiment of the utility model.

[0018] Figure 3 It is an exploded stereoscopic schematic diagram of the second embodiment of the utility model.

[0019] Figure 4 It is an exploded stereoscopic schematic diagram of a single transmission part of the second embodiment of the utility model.

[0020] Explanation of the accompanying drawings: 01. First reducer, 02. First connecting shaft, 03. First driving source, 04. Right-angle steering gear, 05. Clamp, 06. Fixed shaft, 07. Connecting flange, 08. Transmission shaft, 09. Fixed flange, 10. Servo motor, 11. Second reducer, 12. Second connecting shaft. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1-2As shown, the multi-station synchronous transmission device of the utility model includes a plurality of first reducers 01 arranged in a straight line, and the first reducer 01 is preferably a worm gear reducer of the RV series, and two adjacent first reducers 01 are connected in transmission through a first connecting shaft 02, and a first driving source 03 is fixedly installed on the outermost first reducer 01 through a fastener, and the output end of the first driving source 03 is fixedly connected to the input end of the first reducer 01. The first connecting shaft 02 is connected to the input end of the first reducer 01 through a coupling 001, and the coupling 001 is any one of a plum blossom coupling, an elastic coupling, and a diaphragm shaft coupling. A right-angle deflector 04 is fixedly installed on the top surface of each first reducer 01 through a fastener, and a fixture 05 for clamping a workpiece is fixedly installed on the output end of the right-angle deflector 04. The first driving source 03 drives each first reducer 01 to pass synchronously. When each first reducer 01 is working, it drives the right-angle steering device 04 to rotate on the horizontal plane. The rotation angle of the right-angle steering device 04 is generally between 0 and 190°. Therefore, the first driving source 03 can be a rotary cylinder, a rotary cylinder or a motor. The first driving source 03 and the first reducer 01 are directly connected, which has a fast response speed, higher transmission efficiency and excellent dynamic performance. At the same time, the rotation speed of the right-angle steering device 04 can be quickly obtained according to the rotation speed of the first driving source 03 combined with the reduction ratio of the first reducer 01.

[0023] To ensure that the right-angle steering gear 04 can rotate on a horizontal plane, when installing the first reducer 01, since the first reducer 01 is preferably a RV series worm gear reducer, the input end and the output end of the first reducer 01 are arranged perpendicular to each other. The input end of the first reducer 01 is installed horizontally, and the output end of the first reducer 01 is installed vertically.

[0024] Each first reducer 01 is provided with a transmission shaft 08 for driving the right-angle steering gear 04. The transmission shaft 08 runs through the first reducer 01, and one end of the transmission shaft 08 is fixedly connected to the input end of the right-angle steering gear 04. The other end of the transmission shaft 08 is fixedly connected to the second driving source, which is fixedly mounted on the bottom of the first reducer 01. The second driving source and the right-angle steering gear 04 are respectively located on the upper and lower sides of the first reducer 01.

[0025] During use, first, the first driving source 03 drives multiple first reducers 01 to work synchronously, thereby driving the right-angle diverter 04 on each first reducer 01 to rotate to the loading position on the horizontal plane, and then the operator fixes the workpiece on the fixture 05. After the workpiece is fixed, it rotates in the opposite direction through the first driving source 03, driving the right-angle diverter 04 and the workpiece to rotate to the grinding position together. The second driving source is started, and the right-angle diverter 04 is driven to work through the transmission shaft 08, so that the fixture 05 and the workpiece on the fixture 05 rotate on the vertical plane. So that the external grinding mechanism grinds the workpiece. At the same time, during the grinding process, the first driving source 03 rotates forward and reverse according to the set rotation angle. So that the right-angle diverter 04 and the workpiece on the right-angle diverter 04 are driven to rotate on the horizontal plane, so as to achieve synchronous grinding of multiple workpieces.

[0026] The output end of the first reducer 01 is fixedly connected with a fixed shaft 06 by a key connection, and a connecting flange 07 is installed at the end of the fixed shaft 06. The right-angle steering gear 04 is fixedly connected to the connecting flange 07 by fasteners. A through hole is provided in the middle of the fixed shaft 06. The through hole is provided to avoid the interference between the fixed shaft 06 and the transmission shaft 08 when rotating. The transmission shaft 08 is located in the through hole. The matching problem between the right-angle steering gear 04 and the first reducer 01 is solved by the setting of the connecting flange 07 and the fixed shaft 06.

[0027] A rolling bearing is fixedly installed in the insertion hole by means of interference fit, and the transmission shaft 08 is fixedly connected to the rolling bearing. The rolling bearing has two functions. The first is to ensure the coaxiality of the transmission shaft 08 and the fixed shaft 06. The second function is to provide support for the transmission shaft 08. Since the transmission shaft 08 needs to pass through the fixed shaft 06 and the first reducer 01, the longitudinal distance of the transmission shaft 08 is longer. Therefore, the rolling bearing is fixedly installed in the insertion hole to provide support for the transmission shaft 08.

[0028] A fixed flange 09 is provided at the bottom of the first reducer 01 , and the second driving source is fixedly installed on the fixed flange 09 . The second driving source is a servo motor 10 . The output end of the servo motor 10 is fixedly connected to the transmission shaft 08 through a coupling 001 . The coupling 001 is located inside the fixed flange 09 .

[0029] like Figure 3-4As shown, the second embodiment of the second driving source, the second driving source is a second reducer 11, the second reducer 11 is preferably a worm gear reducer of the RV series, and the second reducer 11 is fixedly mounted on the fixing flange 09. Two adjacent second reducers 11 are connected in transmission via a second connecting shaft 12, and a third driving source 13 is fixedly mounted on the outermost second reducer 11 via fasteners, and the output end of the third driving source 13 is fixedly connected to the input end of the second reducer 11. The third driving source 13 is a motor. The connection relationship between the second connecting shaft 12 and the input end of the second reducer 11 is the same as the connection relationship between the first connecting shaft 02 and the input end of the first reducer 01 mentioned above.

[0030] The utility model also provides a polishing machine, comprising the above-mentioned multi-station synchronous transmission device.

[0031] It should be noted that for the sake of clarity of description, the "fastener" mentioned in this application is any one of a screw, a bolt, or a screw, and the "coupling" installed in different positions is marked with the same figure number "001".

[0032] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-station synchronous transmission device, characterized in that: It includes a plurality of first reducers arranged in a straight line, two adjacent first reducers are connected by a first connecting shaft, a first driving source is fixedly installed on the outermost first reducer, a right-angle steering gear is fixedly installed on the top surface of each first reducer, the first driving source directly drives the plurality of first reducers to work synchronously, thereby driving the right-angle steering gear on each first reducer to rotate; a second driving source that drives the right-angle steering gear to work is fixedly installed on the bottom of the first reducer; the second driving source and the right-angle steering gear are located on the upper and lower sides of the first reducer.

2. The multi-station synchronous transmission device according to claim 1, characterized in that: The first connecting shaft is connected to the input end of the first reducer via a coupling.

3. The multi-station synchronous transmission device according to claim 1, characterized in that: A fixture for clamping a workpiece is fixedly installed on the output end of the right-angle diverter.

4. The multi-station synchronous transmission device according to claim 1, characterized in that: Each first reducer is provided with a transmission shaft for driving the right-angle steering gear. The transmission shaft runs through the first reducer, one end of the transmission shaft is fixedly connected to the input end of the right-angle steering gear; the other end of the transmission shaft is fixedly connected to the second driving source.

5. The multi-station synchronous transmission device according to claim 4, characterized in that: A fixed shaft is fixedly connected inside the output end of the first reducer, a connecting flange is installed at the end of the fixed shaft, and the right-angle steering gear is fixedly connected to the connecting flange; a penetrating through hole is arranged in the middle of the fixed shaft; and the transmission shaft is located in the through hole.

6. The multi-station synchronous transmission device according to claim 5, characterized in that: A rolling bearing is fixedly installed in the insertion hole, and the transmission shaft is fixedly connected to the rolling bearing.

7. The multi-station synchronous transmission device according to claim 1, characterized in that: A fixed flange is provided at the bottom of the first reducer, and the second driving source is fixedly installed on the fixed flange. The second driving source is a servo motor, and the output end of the servo motor is fixedly connected to the transmission shaft through a coupling, and the coupling is located in the fixed flange.

8. The multi-station synchronous transmission device according to claim 1, characterized in that: The second driving source is a second reducer, which is fixedly mounted on a fixed flange; two adjacent second reducers are connected in transmission via a second connecting shaft; a third driving source is fixedly mounted on the outermost second reducer, and an output end of the third driving source is fixedly connected to an input end of the second reducer.

9. A light cleaning machine, characterized in that: A multi-station synchronous transmission device comprising any one of claims 1-8.

Images