Grinding device for gearbox gear machining

Abstract

The utility model relates to the technical field of grinding devices, and discloses a grinding device for gearbox gear machining, which comprises a grinding assembly and a positioning assembly, the grinding assembly comprises a collecting tank, a fixing frame is mounted at the right end in the collecting tank, a mounting frame is fixedly connected to the top of the fixing frame, and a grinding device is mounted at the top in the mounting frame through an electric push rod; the positioning assembly comprises a supporting plate and a supporting rod, the bottom of the supporting plate is fixedly connected with a sliding block slidably connected to the outer side of the supporting rod in a sleeving mode, the top of the supporting plate is provided with a rotary air cylinder, the output end of the rotary air cylinder is provided with a fixing column, a positioning piece is installed above the fixing column, a pressing plate is arranged above the positioning piece, the top of the fixing column is fixedly connected with a threaded rod, and a nut is installed on the threaded rod. According to the utility model, different gears can be fixed by replacing different positioning pieces, so that the application range is wide; and through cooperation of a pressing plate, a threaded rod, a nut and a positioning piece, the gear can be pressed and fixed, the stability of the gear during grinding is improved, and the gear grinding device is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding device for processing gearboxes of gears. Background Art

[0002] The gearbox is a key component in the power transmission systems of automobiles, motorcycles, bicycles, ships, airplanes, etc. It is responsible for transmitting the power generated by the engine to the drive wheels, and at the same time adjusts the output torque and rotational speed according to different driving conditions (such as speed, load, road conditions, etc.) to achieve functions such as starting, accelerating, decelerating, and reversing of the vehicle. There are usually multiple gear sets inside the gearbox. When processing the gears arranged inside the gearbox, by processing the raw materials into gear shapes, after the gears are formed, it is necessary to perform grinding processing on the tooth grooves of the gears to improve the meshing degree between the gears and extend the service life of the gear sets.

[0003] After retrieval, the utility model patent with the publication number of CN220093274U discloses a high-precision gear grinding device. The collection module is installed on one side of the placement module. The collection module includes a frame fixed on one side of the placement module, a partition fixed on the inner wall of the frame, a metal filter screen obliquely arranged with one end fixed at the top of the partition and the other end fixed on the inner wall of the frame, a collection box movably arranged in the inner cavity of the frame and extending out of the frame, a bracket fixed on the top of the frame, a grinding wheel rotatably installed on the bracket, a support rod fixed on the bracket, a spray head installed on the support rod, and a pump machine fixed on the outer side of the frame. The frame is used to install other components and at the same time used to store the coolant. The partition is fixed on the inner wall of the frame, separating the inner cavity of the frame into two chambers. One chamber is used to store and place the coolant, and the other chamber is used to collect debris. The metal filter screen is obliquely arranged. This high-precision gear grinding device has the advantages of high coolant utilization efficiency and strong practicability.

[0004] However, in actual production, the diameters of the center holes of different gears are different, and different fixing plates are required to fix the gears. The fixing plate of this device is fixedly connected to the motor shaft, resulting in its inability to fix different gears, and the applicable range is relatively narrow. Secondly, during the gear grinding process, the grinding force applied by the grinding wheel to the gear surface may cause the gear to vibrate, making the gear at risk of falling off the fixing plate. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that the existing grinding devices for gear processing cannot fix different gears, the applicable range is relatively narrow, and the fixing effect on the gears is poor, and the gears are at risk of falling off the fixing plate.

[0006] To solve the above problems, the technical solution of the present utility model is: a grinding device for machining transmission gears, comprising a grinding assembly and a positioning assembly:

[0007] The grinding assembly includes a collection tank, a fixing frame is installed at the right end inside the collection tank, and an installation frame is fixedly connected to the top of the fixing frame. An electric push rod is installed at the inner top of the installation frame, and a grinding device is installed at the movable end of the electric push rod;

[0008] The positioning assembly includes a support plate. Two support rods are installed below the support plate inside the collection tank. A slider is fixedly connected to the bottom of the support plate and is slidably sleeved outside the support rods. A rotary cylinder is installed at the top. A fixing column is installed at the output end of the rotary cylinder. A positioning member for positioning the gear is detachably installed above the fixing column. A pressing plate is arranged above the positioning member, and through holes are opened at the centers of the positioning member and the pressing plate. A threaded rod passing through the through holes is fixedly connected to the top of the fixing column, and a nut is installed on the threaded rod.

[0009] Further, a control panel is arranged at the front end of the collection tank, and a slantingly arranged sieve plate is installed inside on one side of the fixing frame. The height of the right end of the sieve plate is greater than that of the left end.

[0010] Further, a drain pipe is arranged at the bottom of the left end of the collection tank, and a slag discharge port is opened above the sieve plate at the left end. A valve is installed on the drain pipe, and a sealing cover is installed at the slag discharge port.

[0011] Further, a nozzle for spraying coolant is installed on the grinding device.

[0012] Further, one end of the support rod is fixedly connected to the inner wall of the collection tank, and the other end is fixedly connected to the fixing frame.

[0013] Further, the positioning member includes a supporting plate. A positioning column adapted to the central hole of the gear is fixedly connected to the top of the supporting plate, and a convex block adapted to the keyway of the gear is fixedly connected to the side of the positioning column. The height of the positioning column is less than the thickness of the gear. A plurality of limiting rods are fixedly connected to the bottom of the supporting plate, and insertion holes adapted to the limiting rods are opened on the fixing column.

[0014] Further, a driving assembly for driving the support plate to move is installed inside the collection tank.

[0015] Further, the driving assembly includes a motor, a lead screw and a driving block. The motor is installed inside the fixing frame. The left end of the lead screw is rotatably installed on the inner wall of the collection tank, and the other end passes through the side wall of the fixing frame and is connected to the output shaft of the motor. The driving block is fixedly installed at the lower part of one end of the support plate, and the lead screw passes through and is threadedly connected to the driving block.

[0016] The advantages of the present utility model compared with the existing technology are as follows: The positioning member of the present utility model is designed to be detachable. By replacing different positioning members, different gears can be fixed, thus improving the applicable range of the device. Through the cooperation of the pressing plate, threaded rod, nut and positioning member, the gear can be firmly fixed, improving the stability during gear grinding, effectively preventing the gear from falling off the positioning member during grinding, and being safer. Brief Description of the Drawings

[0017] Figure 1 is the three-dimensional view of the present utility model Figure 1 .

[0018] Figure 2 is the three-dimensional view of the present utility model Figure 2 .

[0019] Figure 3 is the cross-sectional view of the present utility model.

[0020] Figure 4 is the structural diagram of the positioning member of the present utility model.

[0021] As shown in the figure: 1. Collection tank; 2. Fixed frame; 3. Installation frame; 4. Electric push rod; 5. Grinding equipment; 6. Sieve plate; 7. Drain pipe; 8. Sealing cover; 9. Sprayer; 10. Support plate; 11. Support rod; 12. Slide block; 13. Rotary cylinder; 14. Fixed column; 15. Positioning member; 15.1. Support plate; 15.2. Positioning column; 15.3. Limiting rod; 16. Pressing plate; 17. Threaded rod; 18. Nut; 19. Motor; 20. Lead screw; 21. Driving block. Detailed Description of the Preferred Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1 and Figure 2 shown, a grinding device for processing transmission gears includes a grinding assembly and a positioning assembly.

[0024] The grinding assembly includes a collection tank 1. At the right end inside the collection tank 1, a fixing frame 2 is installed, and at the top of the fixing frame 2, a mounting frame 3 is fixedly connected. At the inner top of the mounting frame 3, an electric push rod 4 is installed. The movable end of the electric push rod 4 is equipped with a grinding device 5. A nozzle 9 for spraying coolant is installed on the grinding device 5. Inside the collection tank 1, on one side of the fixing frame 2, an inclined sieve plate 6 is installed. The height of the right end of the sieve plate 6 is greater than that of the left end. At the bottom of the left end of the collection tank 1, a drain pipe 7 is provided, and at the left end above the sieve plate 6, a slag discharge port is opened, and a sealing cover 8 is installed at the slag discharge port.

[0025] Connect the coolant delivery pipeline to the nozzle 9, which can spray coolant when the grinding device 5 is working. Through the sieve plate 6, the debris generated during grinding can be separated from the coolant, facilitating the reuse of the coolant. By the telescopic movement of the electric push rod 4, the grinding device 5 moves up and down, which can improve the uniformity of grinding the gear in the vertical direction. The debris on the sieve plate 6 is cleaned to the left end of the sieve plate 6, and by opening the sealing cover 8, the debris can be discharged.

[0026] As Figure 3 and Figure 4 As shown, the positioning assembly includes a support plate 10. Inside the collection tank 1, below the support plate 10, two support rods 11 are installed. One end of the support rod 11 is fixedly connected to the inner wall of the collection tank 1, and the other end is fixedly connected to the fixing frame 2. At the bottom of the support plate 10, a slider 12 slidably sleeved outside the support rod 11 is fixedly connected. At the top, a rotary cylinder 13 is installed. The output end of the rotary cylinder 13 is equipped with a fixed column 14. Above the fixed column 14, a positioning member 15 for positioning the gear is detachably installed. Above the positioning member 15, a pressing plate 16 is provided, and through holes are opened at the centers of the positioning member 15 and the pressing plate 16. At the top of the fixed column 14, a threaded rod 17 passing through the through holes is fixedly connected, and a nut 18 is installed on the threaded rod 17.

[0027] The positioning member 15 includes a supporting plate 15.1. At the top of the supporting plate 15.1, a positioning column 15.2 adapted to the central hole of the gear is fixedly connected, and on the side of the positioning column 15.2, a convex block adapted to the keyway of the gear is fixedly connected. At the bottom of the supporting plate 15.1, a plurality of limiting rods 15.3 are fixedly connected, and on the fixed column 14, insertion holes adapted to the limiting rods 15.3 are opened.

[0028] Place the positioning member 15 on the fixed column 14, and make the threaded rod 17 pass through the through hole on the positioning member 15, and the limiting rod 15.3 is inserted into the through hole on the fixed column 14. The setting of the limiting rod 15.3 can prevent relative rotation between the positioning member 15 and the fixed column 14. Place the gear on the supporting plate 15.1, and make the central hole of the gear sleeved outside the positioning column 15.2. Sleeve the pressing plate 16 outside the threaded rod 17, install and tighten the nut 18 on the threaded rod 17, which can realize the pressing and fixing of the gear, improve the stability during gear grinding, and effectively prevent the gear from falling off the positioning member 15 during grinding. The rotary cylinder 13 drives the positioning member 15 to rotate through the fixed column 14, which can realize the rotation of the gear and facilitate the grinding of the tooth grooves of the gear.

[0029] When grinding different gears, only need to replace different positioning members 15.

[0030] Such as Figure 3 As shown, a driving component for driving the support plate 10 to move is installed inside the collection tank 1. The driving component includes a motor 19, a lead screw 20 and a driving block 21. The motor 19 is installed inside the fixed frame 2. The left end of the lead screw 20 is rotatably installed on the inner wall of the collection tank 1, and the other end passes through the side wall of the fixed frame 2 and is connected to the output shaft of the motor 19. The driving block 21 is fixedly installed at the lower part of one end of the support plate 10, and the lead screw 20 passes through and is threadedly connected to the driving block 21.

[0031] The motor 19 drives the lead screw 20 to rotate, prompting the driving block 21 to drive the support plate 10 to move, which can adjust the distance between the positioning member 15 and the grinding device 5, facilitating the grinding of the gear.

[0032] In specific use, the setting of the limiting rod 15.3 can prevent relative rotation between the positioning member 15 and the fixed column 14. Sleeve the pressing plate 16 outside the threaded rod 17, and then install and tighten the nut 18 on the threaded rod 17, which can realize the pressing and fixing of the gear, improve the stability during gear grinding. The positioning member 15 is of a detachable design and can be replaced according to different gears.

[0033] The parts not disclosed in the present utility model are all prior arts, and their specific structures and working principles will not be elaborated.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0036] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A grinding device for gearbox gear processing, comprising a grinding assembly and a positioning assembly, characterized in that: The grinding assembly comprises a collecting tank (1), a fixing frame (2) is installed at the right end inside the collecting tank (1), a mounting frame (3) is fixedly connected to the top of the fixing frame (2), an electric push rod (4) is installed at the top of the mounting frame (3), and a grinding device (5) is installed at the movable end of the electric push rod (4); The positioning assembly comprises a support plate (10), two support rods (11) are installed inside the collecting tank (1) below the support plate (10), a slider (12) slidably sleeved on the outside of the support rod (11) is fixedly connected to the bottom of the support plate (10), a rotary cylinder (13) is installed on the top, a fixed column (14) is installed at the output end of the rotary cylinder (13), a positioning member (15) for positioning the gear is detachably installed above the fixed column (14), a pressure plate (16) is provided above the positioning member (15), and through holes are opened at the centers of the positioning member (15) and the pressure plate (16), a threaded rod (17) penetrating the through hole is fixedly connected to the top of the fixed column (14), and a nut (18) is installed on the threaded rod (17).

2. A grinding device for gearbox gear machining according to claim 1, characterized in that: A sieve plate (6) is installed obliquely inside the collecting tank (1) on one side of the fixing frame (2), and the height of the right end of the sieve plate (6) is greater than the height of the left end.

3. A grinding device for gearbox gear machining according to claim 2, characterized in that: The left bottom of the collecting tank (1) is provided with a liquid discharge pipe (7), and the left end is provided with a slag discharge port above the sieve plate (6), and a sealing cover (8) is installed at the slag discharge port.

4. The grinding device for gearbox gear machining according to claim 1, characterized in that: The grinding device (5) is provided with a spray head (9) for spraying cooling liquid.

5. The grinding device for gearbox gear machining according to claim 1, characterized in that: One end of the support rod (11) is fixedly connected to the inner wall of the collection tank (1), and the other end is fixedly connected to the fixing frame (2).

6. The grinding device for gearbox gear machining according to claim 1, characterized in that: The positioning member (15) comprises a supporting plate (15.1), a positioning column (15.2) adapted to the central hole of the gear is fixedly connected to the top of the supporting plate (15.1), and a convex block adapted to the keyway of the gear is fixedly connected to the side of the positioning column (15.2), a plurality of limiting rods (15.3) are fixedly connected to the bottom of the supporting plate (15.1), and a plug hole adapted to the limiting rod (15.3) is provided on the fixing column (14).

7. The grinding device for gearbox gear machining according to claim 1, characterized in that: A driving assembly for driving the support plate (10) to move is installed inside the collecting tank (1).

8. The grinding device for gearbox gear machining according to claim 7, characterized in that: The driving assembly comprises a motor (19), a screw rod (20) and a driving block (21); the motor (19) is mounted on the inner side of the fixing frame (2); the left end of the screw rod (20) is rotatably mounted on the inner wall of the collecting tank (1); the other end passes through the side wall of the fixing frame (2) and is connected to the output shaft of the motor (19); the driving block (21) is fixedly mounted on the lower part of one end of the supporting plate (10); the screw rod (20) passes through and is threadedly connected to the driving block (21).

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