Gear grinding tool for high-precision gear shaft machining

Abstract

The utility model relates to a high-precision gear shaft machining gear grinding tool which comprises a base and a vertical supporting rod, the upper surface of the base is connected with a sliding support in a sliding mode, the top end of the sliding support is provided with a lifting frame, and the side face of the lifting frame is provided with a rotary clamping mechanism capable of clamping a gear shaft. According to the gear grinding tool, the problems that according to an existing gear grinding tool, the gear shaft is inconvenient to adjust, all tooth grooves cannot be fully and finely ground, and operation is inconvenient are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear shaft processing tools, and in particular relates to a gear grinding tool for high-precision gear shaft processing. Background Art

[0002] Gear grinding is a gear processing process that uses a grinding wheel as a grinding tool to process the tooth surface of cylindrical gears or certain gear processing tools. It is mainly used to eliminate deformation after heat treatment and improve gear accuracy. Gear grinding is indispensable. Gear transmission is the transmission link of various mechanical components and the basis for mechanical equipment to achieve normal and efficient operation. Gear grinding can not only significantly improve labor productivity, but also effectively ensure product quality and reduce costs. It can improve the technical level of technical workers and improve the qualification rate of parts products.

[0003] Although the existing gear grinding tool can clamp and fix the gear shaft, its function is relatively simple and can only play a simple fixing role. When it is necessary to grind each tooth groove and section of the gear shaft, the existing gear grinding tool is not convenient for adjusting the clamped gear shaft, which affects the grinding efficiency; and since there are many types of gear shafts with different sizes, and each gear shaft has multiple tooth grooves, the existing gear grinding tool cannot fully and finely grind each tooth groove, and requires manual adjustment of the grinding part of the gear shaft, which is inconvenient to operate. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-precision gear shaft processing gear grinding tool, which can facilitate the sufficient and fine grinding of each tooth groove of different models of gear shafts, is easy to operate and facilitates quick adjustment, greatly improving the gear shaft grinding efficiency.

[0005] The cam is fixedly mounted on the support frame of the base and is adapted to move the gears relative to the drive frame when the cam is in motion.

[0006] Preferably, a first electric push rod is provided at the bottom of the sliding support close to the vertical support rod, the fixed rod body portion of the first electric push rod is fixedly connected to the upper surface of the base and the movable rod body is fixedly connected to the bottom of the side of the sliding support.

[0007] Preferably, the rotating clamping mechanism includes a rotating rod, a clamping frame, a threaded rod, a plane bearing and a clamping plate. The rotating rod is passed through the middle part of the top end of the lifting frame and can rotate inside it. The middle part of the clamping frame is fixedly connected to the rotating rod and a plane bearing is embedded in one side. A threaded rod is threaded through the other side of the clamping frame. Another plane bearing is installed at one end of the threaded rod passed through the inside of the clamping frame. The two plane bearings are horizontally corresponding and fixedly installed with a clamping plate on one side close to each other.

[0008] Preferably, the toggle mechanism includes a support plate, a second electric push rod, a clamping frame, a toggle block and a first reduction motor, the support plate is fixedly connected to the middle part of the top of the clamping frame, the fixed rod body part of the second electric push rod is obliquely fixedly installed on the top of the support plate and the bottom end of the movable rod body is fixedly connected to the clamping frame, the first reduction motor is fixedly installed on the side of the clamping frame and the output shaft is connected to the toggle block through a spline, the toggle block is rotatably connected to the inside of the clamping frame, and the outside of the toggle block is provided with a raised toggle bar for toggling the gear shaft clamped in the rotating clamping mechanism.

[0009] Preferably, an electric lifting rod is provided in the middle of the bottom end of the sliding plate, the bottom end of the fixed rod body of the electric lifting rod is fixedly mounted on the upper surface of the base and the top end of the movable rod body is fixedly connected to the middle of the bottom end of the sliding plate.

[0010] Preferably, the rotation adjustment mechanism includes a rotating plate, a second reduction motor, a threaded screw, a limit rod and a screw slider, the middle part of the rotating plate close to the sliding plate is connected to the output end of the servo through a spline, the second reduction motor is fixedly mounted on the side of the rotating plate and its output end is connected to a threaded screw through a spline, the threaded screw is rotatably connected to the inside of the rotating plate, limit rods are provided above and below the threaded screw and the two limit rods are respectively fixedly connected to the top and bottom of the rotating plate, the middle part of the screw slider is connected to the outside of the threaded screw through threaded transmission and the top and bottom are respectively sleeved on the outside of the two limit rods.

[0011] Preferably, the grinding wheel mechanism includes a grinding wheel frame, a drive motor and a grinding wheel. The grinding wheel frame is fixedly connected to the side of the screw slider, the drive motor is fixedly installed on the upper surface of the grinding wheel frame and the output end is connected to the grinding wheel through a spline, the grinding wheel is rotatably connected to the inside of the grinding wheel frame, and the grinding wheel corresponds horizontally to the rotating clamping mechanism.

[0012] The beneficial effects of the above technical solution are:

[0013] The gear grinding tool for high-precision gear shaft processing can clamp and fix gear shafts of different models and sizes in the rotating clamping mechanism through the arrangement of a sliding support, a rotating clamping mechanism, a toggle mechanism, a rotating adjustment mechanism and a grinding wheel mechanism, and adjust the gear shaft to a suitable position through the sliding support and the lifting frame. The grinding wheel mechanism can move up and down outside the vertical support rod, so that it can be adjusted to a suitable grinding height to grind the gear teeth of the gear shaft, and the rotating clamping mechanism can rotate to facilitate adjustment of the fixed state of the gear shaft. The grinding wheel mechanism can rotate driven by the rotating adjustment mechanism to grind different parts of the gear shaft. Through this tooling, each tooth groove of gear shafts of different models can be fully and finely ground, and it is easy to operate and facilitates quick adjustment, which greatly improves the gear grinding efficiency of the gear shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled state of the sliding support of the utility model;

[0016] Figure 3 This is a schematic diagram of the rotating clamping mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled state of the rotating clamping mechanism of the utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled state of the toggle mechanism of the utility model;

[0019] Figure 6 This is a side cross-sectional schematic diagram of the toggle mechanism of the utility model;

[0020] Figure 7 This is a schematic diagram of the sliding plate and its external structure of the utility model;

[0021] Figure 8 For this utility model Figure 7 Schematic diagram of the split state.

[0022] In the figure: 1. base; 2. vertical support rod; 3. sliding support; 4. lifting frame; 5. sliding plate; 6. servo; 7. first electric push rod; 8. rotating rod; 9. clamping frame; 10. threaded rod; 11. plane bearing; 12. clamping plate; 13. support plate; 14. second electric push rod; 15. clamping frame; 16. toggle block; 17. first reduction motor; 18. electric lifting rod; 19. rotating plate; 20. second reduction motor; 21. threaded screw; 22. limit rod; 23. screw slider; 24. grinding wheel frame; 25. drive motor; 26. grinding wheel; 27. clamping plate; 28. tension spring; 29. ​​slot. DETAILED DESCRIPTION

[0023] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 8 The embodiments are described in detail.

[0024] This embodiment provides a high-precision gear shaft grinding tool, as shown in the attached Figure 1-8 When the cam 3 is in the upright position, the cam 3 is in the upright position, and the cam 3 is in the upright position, the cam 3 is in the upright position, and the cam 3 is in the upright position.

[0025] The side of the lifting frame 4 is provided with a rotation clamping mechanism that can clamp the gear shaft. The rotation clamping mechanism includes a rotating rod 8, a clamping frame 9, a threaded rod 10, a plane bearing 11 and a clamping plate 12. The rotating rod 8 is passed through the middle of the top of the lifting frame 4 and can rotate therein. A clamping plate 27 is inserted in the middle of the top of the lifting frame 4. Both ends of the clamping plate 27 are fixedly connected to a tension spring 28. The bottom end of the tension spring 28 is fixedly connected to the upper surface of the lifting frame 4. A clamping groove 29 is provided on the outside of the rotating rod 8, and the number of the clamping grooves 29 is several. The several clamping grooves 29 are provided on the outside of the rotating rod 8 in the form of a ring array. The tension spring 28 can exert a downward pulling force on the clamping plate 27, so that the clamping plate 27 can be fully inserted into the clamping groove 29 on the rotating rod 8, thereby fixing the position of the rotating rod 8.

[0026] The middle part of the clamping frame 9 is fixedly connected to the rotating rod 8 and a plane bearing 11 is embedded in one side of it. The other side of the clamping frame 9 is threaded with a threaded rod 10. Another plane bearing 11 is installed on one end of the threaded rod 10 that passes through the inside of the clamping frame 9. The two plane bearings 11 correspond horizontally and are fixedly installed with a clamping plate 12 on one side close to each other. The clamping plate 12 can rotate relative to the clamping frame 9 through the action of the plane bearing 11. After the gear shaft is clamped between the two clamping plates 12, it can still ensure normal rotation. The distance between the plane bearing 11 and the clamping plate 12 at its end and the clamping plate 12 on the other side can be adjusted by drilling holes in the threaded rod 10, so that the gear shaft can be clamped in the rotating clamping mechanism according to the size of the gear shaft.

[0027] A toggle mechanism for toggling the gear shaft is provided in the middle of the top of the rotating clamping mechanism. The toggle mechanism includes a support plate 13, a second electric push rod 14, a clamping frame 15, a toggle block 16 and a first reduction motor 17. The support plate 13 is fixedly connected to the middle of the top of the clamping frame 9. The fixed rod body part of the second electric push rod 14 is obliquely fixedly installed on the top of the support plate 13 and the bottom end of the movable rod body is fixedly connected to the clamping frame 15. The second electric push rod 14 is in an inclined state and corresponds to the oblique upper side of the gear shaft away from the grinding wheel mechanism. The first reduction motor 17 is fixedly mounted on the side of the clamping frame 15 and the output shaft is splined. It is connected to the toggle block 16, which is rotatably connected to the inside of the clamping frame 15. The outside of the toggle block 16 is provided with a raised strip for toggling the gear shaft clamped in the rotating clamping mechanism. The strip can be engaged with the gear teeth of the gear shaft. The first reduction motor 17 drives the toggle block 16 to rotate slowly and uniformly. When the strip on the toggle block 16 contacts the gear teeth of the gear shaft, the gear shaft can be driven to rotate. Since only one strip is provided, when the toggle block 16 rotates, each time the strip contacts the gear shaft, the gear shaft can only be driven to rotate a distance of one gear tooth, so that the tooth grooves of the gear shaft can be polished in an orderly manner through the grinding wheel mechanism.

[0028] The vertical support rod 2 is fixedly connected to the side of the upper surface of the base 1 away from the sliding support 3, and the sliding plate 5 is vertically slidably connected to its outside. The middle part of the bottom end of the sliding plate 5 is provided with an electric lifting rod 18, and the bottom end of the fixed rod body of the electric lifting rod 18 is fixedly mounted on the upper surface of the base 1 and the top of the movable rod body is fixedly connected to the middle part of the bottom end of the sliding plate 5. The extension or retraction of the movable rod body part of the electric lifting rod 18 can control the sliding plate 5 and the rotation adjustment mechanism and the grinding wheel mechanism on its side to rise or fall synchronously, which is convenient for adjusting the height of the grinding wheel 26; the middle part of the sliding plate 5 away from the sliding support 3 is fixedly installed with a steering gear 6, and the output end of the steering gear 6 is arranged on the side of the sliding plate 5 close to the sliding support 3, and the side of the sliding plate 5 close to the sliding support 3 is provided with a rotation adjustment mechanism, and the movable end of the rotation adjustment mechanism is provided with a grinding wheel mechanism;

[0029] The rotation adjustment mechanism includes a rotating plate 19, a second reduction motor 20, a threaded screw 21, a limit rod 22 and a screw slider 23. The middle part of the rotating plate 19 close to the sliding plate 5 is connected to the output end of the servo 6 through a spline. The servo 6 can drive the rotating plate 19 to rotate along its axis, so as to adjust the state of the grinding wheel 26. The grinding wheel 26 can be adjusted to a horizontal or vertical state, which is convenient for adjusting the fixed state of the gear shaft; the second reduction motor 20 is fixedly mounted on the side of the rotating plate 19 and its output end is connected to the threaded screw 21 through a spline. The threaded screw 21 is rotatably connected to Inside the rotating plate 19, limit rods 22 are provided above and below the threaded screw 21, and the two limit rods 22 are fixedly connected to the top and bottom of the rotating plate 19 respectively. The middle part of the screw slider 23 is connected to the outside of the threaded screw 21 through threaded transmission, and the top and bottom are respectively sleeved on the outside of the two limit rods 22. The two limit rods 22 can limit the movable direction of the screw slider 23 so that it can only move laterally along the direction of the limit rods 22. When the second reduction motor 20 drives the threaded screw 21 to rotate, the screw slider 23 outside it is driven to move laterally through the thread.

[0030] The grinding wheel mechanism includes a grinding wheel frame 24, a drive motor 25 and a grinding wheel 26. The grinding wheel frame 24 is fixedly connected to the side of the screw slider 23. The drive motor 25 is fixedly installed on the upper surface of the grinding wheel frame 24 and the output end is connected to the grinding wheel 26 through a spline. The grinding wheel 26 is rotatably connected to the inside of the grinding wheel frame 24. The grinding wheel 26 corresponds horizontally to the rotating clamping mechanism. The drive motor 25 can drive the grinding wheel 26 to rotate, thereby grinding the gear shaft through the grinding wheel 26.

[0031] The steering gear 6 , the first electric push rod 7 , the second electric push rod 14 , the first reduction motor 17 , the electric lifting rod 18 , the second reduction motor 20 and the drive motor 25 are all electrically connected to an external circuit via wires.

[0032] In summary, the steps for using the gear grinding tool for high-precision gear shaft processing are as follows:

[0033] 1. First, place the gear shaft that needs to be ground between the two clamping plates 12. Rotate the threaded rod 10 so that the clamping plate 12 at one end of the threaded rod 10 approaches the gear shaft and clamps the gear shaft between the two clamping plates 12.

[0034] 2. Then, the first electric push rod 7 controls the sliding support 3 to slide horizontally, moving the gear shaft toward the side close to the grinding wheel 26. After fixing the height and position of the gear shaft, the electric lifting rod 18 controls the sliding plate 5 to move up and down, so that the edge of the grinding wheel 26 is aligned with the tooth groove in the middle of the gear shaft;

[0035] 3. Then, the second electric push rod 14 is used to adjust the toggle block 16 to abut against the gear shaft, so that the toggle bar on the toggle block 16 can abut against the expected closest gear tooth on the outside of the gear shaft, and then the first reduction motor 17 is operated to drive the toggle block 16 to rotate. When the toggle block 16 is fully engaged with the gear teeth corresponding to the gear shaft, it stops rotating, which can fix the gear shaft. Then, the movable rod part of the first electric push rod 7 is controlled to retract a small distance inward, so that the tooth groove on the side of the gear shaft close to the grinding wheel 26 can just abut against the edge of the grinding wheel 26, thereby grinding the inside of the gear shaft teeth through the high-speed rotation of the grinding wheel 26;

[0036] 4. At the same time, the second reduction motor 20 drives the threaded screw 21 to rotate, which can drive the grinding wheel 26 to move laterally, so that the grinding wheel 26 can move laterally along the gear teeth while grinding the gear teeth of the gear shaft at high speed, thereby more fully grinding the gear teeth of the gear shaft;

[0037] 5. After grinding one gear tooth on the gear shaft, the first electric push rod 7 controls the sliding support 3 to move to the side away from the grinding wheel 26, so that the gear shaft and the grinding wheel are temporarily separated, and then the second reduction motor 20 drives the toggle block 16 to rotate one circle. The toggle bar on the toggle block 16 can just move the gear shaft forward one gear tooth, and then the first electric push rod 7 drives the sliding support 3 to move to the side close to the grinding wheel 26 again, so that the tooth groove of the next gear tooth abuts against the grinding wheel 26, and the grinding wheel 26 grinds the inside of the gear tooth; by repeating the above steps, all the gear teeth of the gear shaft can be fully ground;

[0038] 6. After the gear shaft is installed and fixed, the rotating rod 8 can be rotated to adjust the gear shaft to a vertical state, or the gear shaft can be kept horizontal. The steering gear 6 drives the rotating plate 19 to rotate and adjust the grinding wheel 26 to a vertical state. The grinding wheel 26 can grind the end face of the gear shaft to achieve the purpose of fully grinding the gear shaft.

[0039] The above description is only for the purpose of illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the scope of protection of the present invention.

Claims

1. A gear grinding tool for high-precision gear shaft processing, comprising a base (1) and a vertical support rod (2), characterized in that: The upper surface of the base (1) is slidably connected to a sliding support (3), and a lifting frame (4) is provided at the top of the sliding support (3). A rotation clamping mechanism for clamping the gear shaft is provided on the side of the lifting frame (4), and a toggle mechanism for toggling the gear shaft is provided in the middle of the top of the rotation clamping mechanism. The vertical support rod (2) is fixedly connected to the side of the upper surface of the base (1) away from the sliding support (3) and is vertically slidably connected to a sliding plate (5) on its outside. A steering gear (6) is fixedly installed in the middle of the side of the sliding plate (5) away from the sliding support (3), and the output end of the steering gear (6) is passed through the side of the sliding plate (5) close to the sliding support (3). A rotation adjustment mechanism is provided on the side of the sliding plate (5) close to the sliding support (3), and a grinding wheel mechanism is provided at the movable end of the rotation adjustment mechanism.

2. The high-precision gear shaft machining tool according to claim 1, characterized in that: A first electric push rod (7) is provided at the bottom of the sliding support (3) on one side close to the vertical support rod (2); the fixed rod body portion of the first electric push rod (7) is fixedly connected to the upper surface of the base (1), and the movable rod body is fixedly connected to the bottom of the side of the sliding support (3).

3. The gear grinding tool for high-precision gear shaft processing according to claim 1, characterized in that: The rotating clamping mechanism comprises a rotating rod (8), a clamping frame (9), a threaded rod (10), a plane bearing (11) and a clamping plate (12), wherein the rotating rod (8) is arranged in the middle of the top of the lifting frame (4) and can rotate therein, the middle of the clamping frame (9) is fixedly connected to the rotating rod (8) and a plane bearing (11) is embedded in one side thereof, the other side of the clamping frame (9) is threadedly provided with a threaded rod (10), one end of the threaded rod (10) which is arranged in the interior of the clamping frame (9) is provided with another plane bearing (11), and the two plane bearings (11) are horizontally corresponding and fixedly provided with a clamping plate (12) on one side close to each other.

4. The gear grinding tool for high-precision gear shaft machining according to claim 3, characterized in that: The toggle mechanism comprises a support plate (13), a second electric push rod (14), a clamping frame (15), a toggle block (16) and a first reduction motor (17), wherein the support plate (13) is fixedly connected to the middle of the top of the clamping frame (9), the fixed rod body portion of the second electric push rod (14) is fixedly installed obliquely on the top of the support plate (13) and the bottom end of the movable rod body is fixedly connected to the clamping frame (15), the first reduction motor (17) is fixedly installed on the side of the clamping frame (15) and the output shaft is connected to the toggle block (16) through a spline, the toggle block (16) is rotatably connected to the inside of the clamping frame (15), and the outside of the toggle block (16) is provided with a protruding toggle bar for toggling the gear shaft clamped in the rotating clamping mechanism.

5. The gear grinding tool for high-precision gear shaft processing according to claim 1, characterized in that: An electric lifting rod (18) is provided in the middle of the bottom end of the sliding plate (5), the bottom end of the fixed rod body of the electric lifting rod (18) is fixedly mounted on the upper surface of the base (1), and the top end of the movable rod body is fixedly connected to the middle of the bottom end of the sliding plate (5).

6. The gear grinding tool for high-precision gear shaft machining according to claim 1, characterized in that: The rotation adjustment mechanism comprises a rotating plate (19), a second reduction motor (20), a threaded screw (21), a limiting rod (22) and a screw slider (23), wherein the middle portion of the rotating plate (19) close to the sliding plate (5) is connected to the output end of the servo (6) through a spline, the second reduction motor (20) is fixedly mounted on the side of the rotating plate (19) and its output end is connected to the threaded screw (21) through a spline, the threaded screw (21) is rotatably connected to the inside of the rotating plate (19), the threaded screw (21) is provided with limiting rods (22) above and below, and the two limiting rods (22) are respectively fixedly connected to the top and bottom of the rotating plate (19), the middle portion of the screw slider (23) is connected to the outside of the threaded screw (21) through threaded transmission, and the top and bottom are respectively sleeved on the outside of the two limiting rods (22).

7. The gear grinding tool for high-precision gear shaft machining according to claim 6, characterized in that: The grinding wheel mechanism comprises a grinding wheel frame (24), a driving motor (25) and a grinding wheel (26), wherein the grinding wheel frame (24) is fixedly connected to the side of the lead screw slider (23), the driving motor (25) is fixedly mounted on the upper surface of the grinding wheel frame (24) and the output end is connected to the grinding wheel (26) through a spline, the grinding wheel (26) is rotatably connected to the inside of the grinding wheel frame (24), and the grinding wheel (26) corresponds horizontally to the rotating clamping mechanism.

Images