A gear end face grinding device

Abstract

This application relates to the field of gear end face grinding, specifically disclosing a gear end face grinding device, which includes a machine body, a conveyor belt disposed on one side of the machine body, a rotating disk rotatably disposed on the machine body, the rotating disk having a fixing hole, a fixed disk fixedly connected to the machine body, the fixed disk having a fan-shaped opening, the fixed disk being located below the rotating disk, electrically operated telescopic rods symmetrically disposed on the machine body, grinding wheels disposed at the telescopic ends of the electrically operated telescopic rods, a fixing mechanism for fixing the workpiece on the machine body, and a driving mechanism for driving the rotating disk to rotate on the machine body. This application has the effect of simultaneously grinding both ends of the workpiece, improving the grinding efficiency of the workpiece.

Description

Technical Field

[0001] This application relates to the field of gear grinding, and in particular to a gear end face grinding device. Background Technology

[0002] Gears come in many types, and their most common classification method is based on their shaft orientation, generally dividing them into three types: parallel shaft, intersecting shaft, and staggered shaft. Currently, gears are widely used as core components of mechanical transmissions in automobiles, aerospace, industrial robots, and other fields. The quality of their end faces directly affects the stability and lifespan of the transmission system. Gear end faces need to be ground to eliminate heat treatment deformation, burrs, and oxide layers, while also controlling end runout tolerances. Precision-ground gear end faces can improve axial fit accuracy, reduce meshing vibration, and enhance sealing performance.

[0003] Current mainstream processing methods include dedicated gear end face grinding machines and general equipment modification solutions. Dedicated grinding machines employ a vertical double-grinding head structure, achieving a flatness of 0.002mm, but they are costly and lack flexibility. General-purpose cylindrical grinding machines achieve end face machining through additional fixtures, reducing costs, but requiring multiple clamping operations that increase cumulative errors. Furthermore, while double-end face grinding machines can process both sides simultaneously, they are only suitable for thin gears and cannot accommodate irregularly shaped gear profiles.

[0004] Regarding the aforementioned technologies, the inventors believe that they have the following drawbacks: When grinding parallel shaft gears, traditional equipment is limited by its structure and can only grind a single end face of the gear at a time. To complete double-sided processing, manual flipping or secondary clamping is required, and the continuity of gear grinding is weak, which reduces processing efficiency. Utility Model Content

[0005] In order to improve the problem that traditional equipment cannot grind both end faces of gears at the same time, resulting in low grinding efficiency, this application provides a gear end face grinding device.

[0006] The gear end face grinding device provided in this application adopts the following technical solution:

[0007] A gear end face grinding device includes a machine body and a conveyor belt disposed on one side of the machine body. The device is characterized in that: a rotating disk is rotatably disposed on the machine body, the rotating disk has a fixing hole, a fixed disk is fixedly connected to the machine body, the fixed disk has a fan-shaped opening, the fixed disk is located below the rotating disk, electrically operated telescopic rods are symmetrically disposed on the machine body, a grinding wheel is disposed at the telescopic end of the electrically operated telescopic rods, a fixing mechanism for fixing the workpiece is disposed on the machine body, and a driving mechanism for driving the rotating disk to rotate is disposed on the machine body.

[0008] By adopting the above technical solution, when the workpiece on the conveyor belt is conveyed to the rotating disk, the end face of the workpiece contacts the rotating disk, and the side wall of the workpiece abuts against the fixing hole on the fixed disk. The drive mechanism drives the rotating disk to rotate intermittently, and the workpiece rotates with the rotating disk and is conveyed between the two grinding wheels. The workpiece moves from the fan-shaped opening of the fixed disk to the grinding wheel located below the machine body. The fixing structure starts to operate and abuts the workpiece against the hole wall of the fixing hole. The telescopic end of the electric telescopic rod extends, driving the grinding wheel to move downward and making the end face of the grinding wheel contact the end face of the workpiece. The grinding motor starts and drives the grinding wheel to rotate. The upper and lower grinding wheels simultaneously grind the two end faces of the workpiece. The rotating disk continuously conveys the workpiece to the grinding wheel, effectively improving the grinding efficiency of the workpiece.

[0009] Optionally, the drive mechanism includes a drive motor, a disc, gear teeth, and a transmission gear. The drive motor is fixed to the machine body. The drive motor is provided with a disc. A hole is opened at the center of the fixed disc. One end of the transmission gear passes through the hole and is fixedly connected to the rotating disc. The transmission gear is rotatably connected to the machine body. Several gear teeth that mesh with the transmission gear are fixedly connected to the disc.

[0010] By adopting the above technical solution, when the drive mechanism starts running, the drive motor starts and drives the disc to rotate. The gear teeth on the disc mesh with the transmission gear and drive the transmission gear to rotate. The transmission gear is fixed to the rotating disc through the hole on the fixed disc. The transmission gear drives the rotating disc to rotate, and the rotating disc transfers the workpiece between the two grinding wheels. The grinding wheels grind the workpiece. Compared with manually changing the workpiece for grinding, this device effectively improves the grinding efficiency.

[0011] Optionally, the fixing mechanism includes a hydraulic cylinder and a gripping plate. The hydraulic cylinder is fixedly connected to the machine body, and the gripping plate is fixedly connected to the output end of the hydraulic cylinder. The gripping plate includes a rotating plate and a fixed plate. The fixed plate is fixedly connected to the telescopic end of the hydraulic cylinder, and the rotating plate is rotatably connected to both ends of the fixed plate.

[0012] By adopting the above technical solution, when the workpiece is conveyed to the grinding wheel located below the machine body, the hydraulic cylinder is activated. The extension and retraction end of the hydraulic cylinder drives the gripper plate to move. The rotating plate and the fixed plate on the gripper plate abut against the workpiece and press the workpiece against the wall of the fixed hole. The rotating plate prevents the workpiece from moving left or right.

[0013] Optionally, the fixing plate is provided with a wedge block, the fixing plate is provided with a plurality of positioning holes, the wedge block is also provided with positioning holes, and the fixing plate is provided with a pin that matches the positioning holes.

[0014] By adopting the above technical solution, for workpieces of different sizes, the wedge block is fixed on the fixed plate by adjusting the position of the wedge block on the fixed plate and aligning the positioning hole with the pin. The rotating plate abuts against the wedge block, thereby adjusting the angle between the rotating rods, which can satisfy the need to fix workpieces of different sizes.

[0015] Optionally, a movable plate is fixedly connected to the telescopic end of the electric telescopic rod, and sliding rods are fixedly connected to both sides of the electric telescopic rod on the machine body. The end of the sliding rod away from the machine body is slidably connected to the movable plate, and the grinding motor is fixedly connected to the movable plate.

[0016] By adopting the above technical solution, when the telescopic end of the electric telescopic rod extends, the electric telescopic rod drives the moving plate to move downward toward the rotating disk. The moving plate slides on the slide rod and makes the grinding wheel fixed on the grinding motor press against the workpiece. The moving plate and the slide rod can prevent the grinding motor from generating torque on the electric telescopic rod when it rotates, thus ensuring the stability of the structure.

[0017] Optionally, a baffle is fixed to the edge of the fan-shaped fixing plate.

[0018] By adopting the above technical solution, when the rotating disk rotates, the baffle on the fixed disk prevents the workpiece from being thrown out of the fan-shaped fixed disk under the action of centrifugal force, ensuring that the workpiece can be transported between the two grinding wheels.

[0019] Optionally, the gripping plate, the fixing plate, and the hole walls of the fixing holes are all provided with anti-slip layers.

[0020] By adopting the above technical solution, when the workpiece is fixed, the anti-slip layer can prevent the workpiece from moving or deflecting during grinding, thus ensuring the grinding effect of the grinding wheel on the workpiece.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. When the rotating disk transports the workpiece between the two grinding wheels, the electric telescopic rod located below the rotating disk extends, bringing the grinding wheel closer to the fan-shaped opening of the fixed disk. The workpiece moves from the fixed disk to the grinding wheel located below the rotating disk. The hydraulic cylinder extends, pressing the workpiece against the wall of the fixed hole. The grinding wheel on the rotating disk abuts against the end face of the workpiece under the action of the electric telescopic rod. The grinding motor drives the two grinding wheels to rotate in opposite directions, grinding both end faces of the workpiece simultaneously. This device can grind both end faces of the workpiece at the same time, effectively improving the grinding efficiency of the workpiece.

[0023] 2. When the conveyor belt transports the workpiece to the fixed plate, the fixed hole on the rotating plate abuts against the workpiece. The grinding motor on the machine body drives the plate to rotate. The gear teeth fixed to the plate mesh with the transmission gear and drive the transmission gear to rotate. The transmission gear drives the rotating plate to rotate. When the gear teeth disengage from the transmission gear, the rotating plate stops rotating. The intermittent rotation of the rotating plate continuously transports the workpiece between the two grinding wheels, reducing manual operation and effectively improving the grinding efficiency of the workpiece.

[0024] 3. When the workpiece is conveyed between the two grinding wheels, the telescopic end of the hydraulic cylinder extends, and the gripping plate presses the workpiece against the fixing hole. By adjusting the position of the wedge block on the fixing plate and fixing it with the pin, the angle between the rotating plate and the fixing plate can be adjusted so that the rotating plate presses against the workpiece, thus satisfying the need to fix workpieces of different sizes. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure from another perspective of an embodiment of this application;

[0028] Figure 4 yes Figure 3 Enlarged schematic diagram of part B;

[0029] Figure 5 This is a schematic diagram illustrating the structure of the fixed disk in an embodiment of this application.

[0030] Reference numerals: 1. Machine body; 2. Conveyor belt; 3. Rotary disc; 31. Fixing hole; 4. Fixing disc; 41. Fan-shaped opening; 42. Stop bar; 51. Electric telescopic rod; 52. Moving plate; 53. Slide rod; 54. Grinding motor; 55. Grinding wheel; 61. Drive motor; 62. Disc; 63. Gear tooth; 64. Transmission gear; 7. Fixing mechanism; 71. Hydraulic cylinder; 72. Grip plate; 721. Rotating plate; 722. Fixing plate; 73. Wedge block; 74. Pin; 75. Anti-slip layer. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a gear end face grinding device. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 5The gear end face grinding device includes a machine body 1, a conveyor belt 2 located on one side of the machine body 1, a buffer zone located at one end of the conveyor belt 2 near the machine body 1, a rotating disk 3 rotatably mounted on the machine body 1, a fixed disk 4 fixedly connected to the machine body 1, a baffle 42 integrally formed at the edge of the fixed disk 4, a fan-shaped opening 41 on the fixed disk 4, a drive mechanism for rotating the rotating disk 3 on the machine body 1, a fixing hole 31 on the rotating disk 3, the side of the rotating disk 3 that contacts the workpiece can be a smooth metal plate, or ball bearings can be placed inside the rotating disk 3 to reduce friction with the workpiece, the size of the fixing hole 31 is larger than the size of the workpiece being processed; the machine body The machine body 1 is symmetrically equipped with electric telescopic rods 51. The telescopic end of the electric telescopic rods 51 is fixedly connected to a moving plate 52. The machine body 1 is equipped with sliding rods 53 on both sides of the fixed end of the electric telescopic rods 51. The end of the sliding rods 53 away from the machine body 1 is slidably connected to the moving plate 52. The moving plate 52 is fixedly equipped with a grinding motor 54. The output end of the grinding motor 54 is fixedly connected to a grinding wheel 55. The output end of the grinding motor 54 located above the rotating disk 3 passes through the moving plate 52 and is fixedly connected to the grinding wheel 55. The two grinding wheels 55 are symmetrically arranged. The machine body 1 is equipped with a sloping groove at the bottom. The machine body 1 is equipped with a counterweight block. The machine body is equipped with a fixing mechanism 7 for fixing the workpiece.

[0033] When the conveyor belt 2 transports the workpiece to the fixed platen 4, if the conveyor belt 2 is traveling too fast, the workpiece can stop in the buffer zone. The subsequently transported workpiece will then push the stopped workpiece onto the fixed platen 4. The bottom of the workpiece contacts the fixed platen 4, and the side wall of the workpiece abuts against the wall of the fixing hole 31 on the rotating platen 3. The drive mechanism drives the rotating platen 3 to rotate, and the rotating platen 3 moves the workpiece to the fan-shaped opening 41. The integrally formed baffle 42 at the edge of the fixed platen 4 prevents the workpiece from being thrown out of the rotating platen 3 under the action of centrifugal force. The electric telescopic rod 51 located below the rotating platen 3 extends and moves the grinding wheel 55 to near the fan-shaped opening 41. The workpiece moves from the fan-shaped opening 41 to the grinding wheel 55 located below the machine body 1. When the fixing mechanism 7 is activated, it presses the workpiece against the fixing hole 31 to prevent the workpiece from moving during grinding. The electric telescopic rod 51 located above the rotating disk 3 extends, driving the moving plate 52 to move downward along the slide rod 53. The slide rod 53 can prevent the grinding motor 54 from generating torque on the electric telescopic rod 51 when rotating, ensuring the stability of the structure. The moving plate 52 drives the grinding wheel 55 located above the machine body 1 to abut against the end face of the workpiece. The two grinding motors 54 are activated, driving the two grinding wheels 55 to rotate in opposite directions. After the workpiece is ground, the rotating disk 3 removes the workpiece from the grinding wheel 55 below the machine body 1. The ground workpiece slides out from the inclined groove. The counterweight block set on the machine body 1 can prevent the machine body 1 from tilting due to unstable center of gravity.

[0034] The size of the grinding wheel 55 can be adjusted according to the thickness of the workpiece. When the workpiece thickness is greater than the height from the fixed plate 4 to the rotating plate 3, the size of the grinding wheel 55 can be set to be greater than the size of the fixed hole 31. When the workpiece thickness is less than the height from the fixed plate 4 to the rotating plate 3, the size of the grinding wheel 55 can be set to be less than the size of the fixed hole 31. The side wall of the fixed hole 31 can be threaded with an adjustment block that is thinner than the workpiece thickness to prevent the grinding wheel 55 from contacting the rotating plate 3. Compared with manual workpiece flipping and clamping, this device can continuously grind the workpiece and grind both end faces of the workpiece at the same time, effectively improving the grinding efficiency of the workpiece.

[0035] Reference Figure 1 and Figure 4 The drive mechanism includes a drive motor 61, a disc 62, gear teeth 63, a transmission gear 64, a hole, and a rotating shaft. The motor is fixedly connected to the machine body 1. The output end of the drive motor 61 is coaxially fixedly connected to the disc 62. The output end of the drive motor 61 can also be connected to a gearbox, which is then connected to the disc 62. The edge of the disc 62 is integrally formed with several gear teeth 63. The number of gear teeth 63 is determined according to the workpiece grinding time and the workpiece conveying time. A hole is opened at the center of the fixed disc 4. A fixed rod can be fixedly connected to the transmission gear 64. The fixed rod passes through the hole and is coaxially fixedly connected to the rotating disc 3. The transmission gear 64 is rotatably connected to the end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the machine body 1.

[0036] When the drive motor 61 starts, it drives the disc 62 to rotate. The gear teeth 63 fixed on the disc 62 mesh with the transmission gear 64. The disc 62 drives the transmission gear 64 to rotate along the shaft. The transmission gear 64 drives the rotating disc 3 to rotate through the hole on the fixed disc 4. The fixed hole 31 on the rotating disc 3 allows the workpiece to be transported between the two grinding wheels 55. When the gear teeth 63 on the disc 62 disengage from the transmission gear 64, the transmission gear 64 stops rotating, and the rotating disc 3 also stops rotating. The grinding wheel 55 begins to grind the workpiece. The grinding time of the grinding wheel 55 is the same as the time when the rotating disc 3 stops rotating. When the grinding wheel 55 on the rotating disc 3 moves away from the workpiece, the rotating disc 3 moves the workpiece and drops it onto the inclined groove. This device continuously transports the workpiece between the two grinding wheels 55 by setting the intermittently rotating rotating disc 3, and continuously grinds multiple workpieces. Compared with manually adding workpieces, it effectively improves the grinding efficiency of the workpiece.

[0037] Reference Figure 1 and Figure 2The fixing mechanism 7 includes a hydraulic cylinder 71 fixed to the machine body 1 and a gripping plate 72 fixed to the telescopic end of the hydraulic cylinder 71. The gripping plate 72 includes a fixed plate 722 fixed to the telescopic end of the hydraulic cylinder 71 and a rotating plate 721 rotatably connected to both ends of the fixed plate 722. The fixing mechanism 7 also includes a wedge block 73 inserted into the rotating groove of the fixed plate 722, several positioning holes opened on the fixed plate 722, and a pin 74 inserted on the fixed plate 722 that matches the positioning holes. The wedge block also has positioning holes. The side of the rotating plate 721 that contacts the workpiece is an inclined surface tangent to the workpiece or an arc surface with a larger curvature than the workpiece. Rubber anti-slip layers 75 are fixed to the walls of the fixed plate 722, the rotating plate 721, and the positioning holes. The anti-slip layer 75 can also be a protrusion or tooth that meshes with the workpiece, or it can be an anti-slip layer with anti-slip texture.

[0038] When the workpiece is conveyed between the two grinding wheels 55, the telescopic end of the hydraulic cylinder 71 extends, driving the gripper plate 72 to move towards the workpiece. The rotating plate 721 on the gripper plate 72 abuts against the side of the workpiece, so that the side wall of the rotating plate 721 abuts against the side wall of the workpiece. The hydraulic cylinder 71 continues to extend, abutting the workpiece against the hole wall of the fixing hole 31. When the size of the workpiece to be ground changes, the angle between the rotating plate 721 and the fixing plate 722 can be adjusted by adjusting the position of the wedge block 73 in the rotating groove of the fixing plate 722 and fixing the wedge block 73 on the fixing plate 722 by the pin 74. This allows workpieces of different sizes to be abutted. After the workpiece is ground, the telescopic end of the hydraulic cylinder 71 retracts, and the rotating disk 3 rotates to move the workpiece onto the inclined groove. The anti-slip layer 75 increases the friction between the workpiece and the contact surface. This device fixes the workpiece in the fixing hole 31, preventing the workpiece from moving during grinding.

[0039] The implementation principle of the end face grinding device for transmission gear 64 in this embodiment of the application is as follows: When the conveyor belt 2 transports the workpiece to the rotating disk 3, the drive motor 61 starts, and the drive motor 61 drives the disk 62 to rotate. The gear teeth 63 fixed on the disk 62 mesh with the transmission gear 64, driving the transmission gear 64 to rotate along the rotating shaft. The transmission gear 64 drives the rotating disk 3 to rotate. The fixing hole 31 on the rotating disk 3 moves the workpiece between the two grinding wheels 55. When the gear teeth 63 and the transmission gear 64 separate, the rotating disk 3 stops rotating, and the grinding wheels 55 grind the workpiece. The electric telescopic rod 51 located below the rotating disk 3 extends, bringing the grinding wheels 55 closer to the fixed disk 4, and the workpiece is transferred from the fixed disk 4 to the machine body. On the grinding wheel 55 below 1, the rotating disk 3 stops rotating, the telescopic end of the hydraulic cylinder 71 extends, driving the gripping plate 72 to move and abut the workpiece against the wall of the fixed hole 31. The electric telescopic rod 51 above the rotating disk 3 extends, driving the moving plate 52 to move downward and abut the grinding wheel 55 above the rotating disk 3 against the workpiece. The grinding motor 54 starts, driving the two grinding wheels 55 to rotate in opposite directions, simultaneously grinding both ends of the workpiece. After grinding, the rotating disk 3 rotates, causing the workpiece to fall into the inclined groove. Compared with manual workpiece flipping and secondary clamping for grinding, this device can continuously grind both ends of the workpiece, effectively improving the grinding efficiency of the workpiece.

[0040] 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 gear end face grinding device, comprising a machine body (1) and a conveyor belt (2) disposed on one side of the machine body (1), characterized in that: A rotating disk (3) is rotatably mounted on the machine body (1). A fixing hole (31) is provided on the rotating disk (3). A fixing disk (4) is fixedly connected to the machine body (1). A fan-shaped opening (41) is provided on the fixing disk (4). The fixing disk (4) is located below the rotating disk (3). An electric telescopic rod (51) is symmetrically arranged on the machine body (1). A grinding wheel (55) is provided at the telescopic end of the electric telescopic rod (51). A fixing mechanism (7) for fixing the workpiece is provided on the machine body (1). A driving mechanism for driving the rotating disk (3) to rotate is provided on the machine body (1).

2. The gear end face grinding device according to claim 1, characterized in that: The drive mechanism includes a drive motor (61), a disc (62), gear teeth (63) and a transmission gear (64). The drive motor (61) is fixed to the body (1). The drive motor (61) is provided with a disc (62). A hole is opened at the center of the fixed disc (4). One end of the transmission gear (64) passes through the hole and is fixed to the rotating disc (3). The transmission gear (64) is rotatably connected to the body (1). Several gear teeth (63) that mesh with the transmission gear (64) are fixed on the disc (62).

3. The gear end face grinding device according to claim 1, characterized in that: The fixing mechanism (7) includes a hydraulic cylinder (71) and a gripper plate (72). The hydraulic cylinder (71) is fixedly connected to the machine body (1). The output end of the hydraulic cylinder (71) is fixedly connected to the gripper plate (72). The gripper plate (72) includes a rotating plate (721) and a fixed plate (722). The fixed plate (722) is fixedly connected to the telescopic end of the hydraulic cylinder (71). The two ends of the fixed plate (722) are rotatably connected to the rotating plate (721).

4. The gear end face grinding device according to claim 3, characterized in that: The fixing plate (722) is provided with a wedge block (73), and the fixing plate (722) is provided with a plurality of positioning holes. The wedge block (73) is also provided with positioning holes. The fixing plate (722) is provided with a pin (74) that matches the positioning holes.

5. The gear end face grinding device according to claim 1, characterized in that: The telescopic end of the electric telescopic rod (51) is fixedly connected to a movable plate (52). Slide rods (53) are fixedly connected to both sides of the electric telescopic rod (51) on the body (1). The end of the slide rod (53) away from the body (1) is slidably connected to the movable plate (52). The grinding motor (54) is fixedly connected to the movable plate (52).

6. The gear end face grinding device according to claim 1, characterized in that: A baffle (42) is fixed to the edge of the fan-shaped fixing plate (4).

7. A gear end face grinding device according to claim 3, characterized in that: The gripper plate (72), the fixing plate (722), and the fixing hole (31) are all provided with anti-slip layer (75).

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