A high-precision gear surface polishing device

Abstract

This utility model discloses a high-precision gear surface grinding device, belonging to the field of grinding processing technology. It includes a grinding head and a grinding tail. The grinding head has a connecting rod inside, with a second spring mounted on the connecting rod. A handle connecting rod is rotatably connected to the left side of the connecting rod, and a handle head is connected to the tail of the handle connecting rod. A grinding head is connected to the right side of the connecting rod. A protrusion is fixedly connected to the outer wall of the grinding head, and a first spring is installed inside the protrusion. A button is provided on the outer wall of the grinding head, connected to a groove, and a third spring is installed on the button. A clamping component is provided inside the grinding tail, with bolts mounted on the clamping component. An oil inlet is provided on the right side of the grinding tail, with a liquid flow channel inside. This utility model can grind the inner wall of gears, while simultaneously providing a liquid flow channel and an air inlet pipe for lubrication and cleaning of the internal structure.

Description

Technical Field

[0001] This utility model belongs to the field of grinding and processing technology, and specifically relates to a high-precision gear surface grinding device. Background Technology

[0002] As a core component of mechanical transmission, the surface quality of gears directly affects transmission efficiency, noise control, and fatigue life. With the rapid development of high-end equipment manufacturing (such as new energy vehicles, aerospace, and precision instruments), higher requirements are being placed on gear surface roughness (Ra≤0.4μm), tooth profile accuracy (ISO 1328-1 standard grade 3 or above), and batch consistency. Traditional gear grinding technology has significant limitations:

[0003] Dynamic control defects: Existing grinding heads mostly apply constant pressure through rigid contact, which can easily lead to local over-grinding or under-grinding due to slight gear deformation or clamping errors. This is especially true for thin-walled gears, which are prone to surface burns or micro-cracks.

[0004] Chinese Patent CN201910258241.9 relates to a bidirectional sanding device for rotating furniture components. The device includes a base frame, a part clamping device, a transverse sanding device, a longitudinal sanding device, and a sanding device support frame. The base frame provides support for the entire device, and other systems are mounted on the base frame. The part clamping device system is mounted on the base frame to clamp the parts to be processed, and also allows the clamped parts to rotate. The sanding device support frame is mounted on the base frame and, in conjunction with a track and rack on the base frame, allows for translational movement on the base frame. Both the transverse and longitudinal sanding devices are mounted on the sanding device support frame; the transverse sanding device is mounted to the lower side of the support frame, and the longitudinal sanding device is mounted directly above the support frame. The transverse sanding device includes a transverse sanding blade and a transverse feed system, and the longitudinal sanding device includes a longitudinal sanding blade and a longitudinal feed system.

[0005] Chinese Patent CN202110970632.0 discloses a universal gear grinding device. This invention relates to the field of grinding devices and includes a body with a grinding space. The grinding space contains a driving device for rotating the grinding gear, a side grinding device for grinding the sides of the gear, a moving device for moving the grinding box, and a gear grinding device for grinding the tooth root and tooth surface. The rotation of the roller shaft causes the moving roller to rotate, which in turn moves two elastic telescopic shafts, one to the left and one to the right, allowing for the grinding of each tooth surface individually without manual intervention, greatly improving work efficiency.

[0006] However, the above-mentioned patent still has the following drawbacks: for example, it cannot grind the inner wall of the gear, and it cannot lubricate and clean the inside of the device, resulting in low grinding precision. Utility Model Content

[0007] The purpose of this invention is to provide a high-precision gear surface grinding device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model to solve the technical problem is as follows:

[0009] A high-precision gear surface grinding device includes a grinding head and a grinding tail. The grinding head has a connecting rod inside, and a second spring is installed on the connecting rod. A handle connecting rod is connected to the left side of the connecting rod, and a grinding head is connected to the right side of the connecting rod. A protrusion is fixedly connected to the outer wall of the grinding head, and a first spring is installed on the protrusion. A button is provided on the outer wall of the grinding head, and a groove is connected to the button. A third spring is installed on the button. A clamping member is provided inside the grinding tail, and a bolt is provided on the clamping member.

[0010] Furthermore, an oil inlet head is provided on the right side of the grinding tail, and an oil inlet cap is connected to the right side of the oil inlet head. The oil inlet cap can control the inflow of oil, prevent oil leakage, and prevent dust.

[0011] Furthermore, the oil inlet head is equipped with a liquid flow channel, which is divided into upper and lower liquid flow channels. These two liquid flow channels lubricate the internal workpiece more efficiently, improving grinding accuracy.

[0012] Furthermore, the outer wall of the grinding tail is equipped with an air cover, which is connected to an air inlet pipe. The air cover controls the intake and exhaust of gas while preventing dust from entering. The air inlet pipe can clean internal debris and extend the machine's lifespan.

[0013] Furthermore, the handle linkage is connected to a handle head at its tail, and the handle head has a spherical structure. The spherical structure makes it easier to turn the handle head.

[0014] The main advantages of utility models are:

[0015] 1. The first spring and the second spring cooperate with the connecting rod, and the elastic snap-fit ​​structure of the protrusion and the groove automatically compensates for gear clamping errors and slight deformation, avoids local over-wearing or under-wearing of thin-walled gears, and ensures surface consistency.

[0016] 2. High-efficiency grinding capability for the inner wall of gears: By pressing down the handle, the grinding head is pushed radially from the grinding head into the inner cavity of the gear, thereby grinding the inner wall of the gear.

[0017] 3. The liquid flow channel can lubricate the inside of the machine, improve the grinding accuracy, lubricate moving parts in real time, reduce friction loss, ensure the stability of the grinding process, and significantly improve the surface roughness accuracy of the teeth.

[0018] 4. Install an air intake pipe to clean the inside of the machine, extend the machine's lifespan, and regularly clean the internal grinding debris with gas to prevent debris accumulation from causing the mechanism to jam or wear, thereby improving the equipment's durability and maintenance cycle. Attached Figure Description

[0019] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-precision gear surface grinding device according to this utility model. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the overall structure of a high-precision gear surface grinding device according to this utility model. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the overall structure of a high-precision gear surface grinding device according to this utility model. Figure 3 .

[0023] Figure 4 This is a cross-sectional structural schematic diagram of a high-precision gear surface grinding device according to the present invention.

[0024] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0025] The symbols of the main components are explained as follows: 1. Oil inlet head, 2. Air cap, 3. Handle connecting rod, 4. Grinding head, 5. Clamping part, 6. Connecting rod, 7. Bolt, 8. Grinding tail, 9. Grinding head, 10. Handle head, 11. Liquid flow channel, 12. Button, 13. Groove, 14. Protrusion, 15. First spring, 16. Second spring, 17. Oil cap, 18. Third spring. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-5As shown, a high-precision gear surface grinding device includes a grinding head 9 and a grinding tail 8. A connecting rod 6 is located inside the grinding head 9, and a second spring 16 is mounted on the connecting rod 6. A handle connecting rod 3 is connected to the left side of the connecting rod 6, and a handle head 10 is connected to the tail of the handle connecting rod 3. The handle head 10 has a spherical structure. The spherical structure makes turning the handle head 10 easier. A grinding head 4 is connected to the right side of the connecting rod 6. A protrusion 14 is fixedly connected to the outer wall of the grinding head 4, and a first spring 15 is mounted on the protrusion 14. A button 12 is located on the outer wall of the grinding head 9, and a groove 13 is connected to the button 12. A third spring 18 is mounted on the button 12.

[0028] The grinding tail section 8 is equipped with a clamping member 5, which has a bolt 7. The clamping force of the clamping member 5 is adjusted by rotating the bolt 7. An oil inlet head 1 is located on the right side of the grinding tail section 8, and an oil inlet cap 17 is connected to the right side of the oil inlet head 1. The oil inlet cap 17 controls the oil inflow, prevents oil leakage, and provides dust protection. The oil inlet head 1 has a liquid flow channel 11 inside, with two channels, upper and lower. These two channels more efficiently lubricate the internal workpiece, improving grinding accuracy. An air cover 2 is located on the upper surface of the grinding tail section 8. The air cover 2 controls the air inflow and outflow while preventing dust from entering. The air cover 2 is connected to an air intake pipe, which cleans internal debris and extends the machine's lifespan.

[0029] During grinding, first install the gear into the clamping member 5, then adjust the clamping force of the clamping member 5 by rotating the bolt 7 to clamp and fix the gear. Next, press down the handle head 10 to drive the handle connecting rod 3, which in turn pushes the connecting rod 6 to the right. Since the grinding head 4 is connected to the right side of the connecting rod 6, the grinding head 4 is pushed out from the grinding head 9 to the middle of the gear, thereby grinding the internal surface of the gear. The outer wall of the grinding head 4 is fixedly connected to the protrusion 14, which will be pushed into the groove 13 by the connecting rod 6 to fix the position of the grinding head 4. When the processing is completed, press the button 12 to make the protrusion 14 disengage from the groove 13, lift the handle head 10, the handle head 10 drives the handle connecting rod 3 to push the connecting rod 6 to the left, thereby pulling the grinding head 4 out from the middle of the gear. Then rotate the bolt 7 in the opposite direction to loosen the clamping member 5, and the processed gear can be taken out.

[0030] The above provides a detailed description of a high-precision gear surface grinding device provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-precision gear surface grinding device, characterized in that: The device includes a grinding head (9) and a grinding tail (8). The grinding head (9) has a connecting rod (6) inside. A second spring (16) is installed on the connecting rod (6). A handle connecting rod (3) is connected to the left side of the connecting rod (6). A grinding head (4) is connected to the right side of the connecting rod (6). A protrusion (14) is fixedly connected to the outer wall of the grinding head (4). A first spring (15) is installed on the protrusion (14). A button (12) is provided on the outer wall of the grinding head (9). A groove (13) is connected to the button (12). A third spring (18) is installed on the button (12). A clamping member (5) is provided inside the grinding tail (8). A bolt (7) is provided on the clamping member (5).

2. The high-precision gear surface grinding device according to claim 1, characterized in that: The right side of the grinding tail (8) is provided with an oil inlet head (1), and the right side of the oil inlet head (1) is connected to an oil inlet cap (17).

3. The high-precision gear surface grinding device according to claim 2, characterized in that: The oil inlet head (1) is provided with a liquid flow channel (11), which is divided into upper and lower liquid flow channels.

4. The high-precision gear surface grinding device according to claim 1, characterized in that: The outer wall of the grinding tail (8) is provided with an air cover (2), and the air cover (2) is connected to an air inlet pipe.

5. The high-precision gear surface grinding device according to claim 1, characterized in that: The handle link (3) is connected to a handle head (10) at its tail, and the handle head (10) is a spherical structure.

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