Precise gear grinding mechanism

Abstract

The invention relates to the technical field of gear grinding, in particular to a precise gear grinding mechanism which comprises a bottom plate, a base is rotatably mounted at the top of the bottom plate, a long sliding rod is fixedly mounted between the front side and the rear side of the interior of the base, and two C-shaped sliding plates are slidably mounted on the outer side of the long sliding rod; a two-way threaded rod is rotationally installed between the front side and the rear side of the interior of the base, two C-shaped sliding plates are connected to the outer sides of different threads of the two-way threaded rod in a threaded mode, a driving assembly is arranged on the inner side of the base and comprises a mounting plate, and the clamping face can be precisely attached to the peripheral contour of a gear shaft through an arc-shaped clamping column; according to the special fixture, stable clamping can be formed from the inner side of the gear shaft, deviation or shaking of a workpiece in the grinding process is effectively avoided, the grinding precision is guaranteed, meanwhile, the adaptation range of gear shafts of different specifications is widened, and the adaptation cost of the special fixture is reduced.

Description

Technical Field

[0001] This invention relates to the field of gear grinding technology, and more particularly to a precision gear grinding mechanism. Background Technology

[0002] In gear manufacturing, grinding is a crucial process for ensuring gear precision, placing extremely high demands on the workpiece positioning stability and adjustability of the grinding mechanism. Existing gear grinding mechanisms still have many shortcomings in practical applications.

[0003] The prior art patent document CN222725642U discloses that: This invention belongs to the field of grinding mechanism technology and discloses a precision gear grinding mechanism, including a mounting frame. The top surface of the mounting frame is provided with a positioning component for clamping and fixing gears, and the positioning component is movably connected to the mounting frame. The top surface of the mounting frame is provided with a grinding component for grinding gears, and the grinding component is movably connected to the mounting frame. The top surface of the mounting frame is provided with a support frame, and the top surface of the support frame has a push groove. The push groove is provided with a drive component for driving the grinding component. The grinding component can be rotated and adjusted on the top surface of the mounting frame. When different gears need to be ground, the grinding component will rotate to the corresponding position. Moreover, the drive component and the grinding component are separate, so that the drive component can be quickly connected or separated from the grinding component, which improves the grinding efficiency of the device. The positioning component can quickly adjust and fix gears of different sizes, which improves the grinding quality of the gears.

[0004] Previous precision gear grinding mechanisms were unable to achieve a stable clamping effect, which led to workpiece displacement and shaking during the grinding process, making it impossible to guarantee grinding accuracy. Traditional clamping components had poor adaptability, requiring the replacement of special fixtures for different specifications of gear shafts, which not only increased the fixture adaptation cost but also reduced processing efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a precision gear grinding mechanism that solves the problem of poor adaptability of traditional clamping components.

[0006] To achieve the above objectives, the present invention provides a precision gear grinding mechanism, comprising a base plate, a base rotatably mounted on the top of the base plate, a long slide rod fixedly mounted between the front and rear sides of the interior of the base, two C-shaped slide plates slidably mounted on the outer side of the long slide rod, and a bidirectional threaded rod rotatably mounted between the front and rear sides of the interior of the base, with the two C-shaped slide plates respectively screwed onto the outer sides of different threads of the bidirectional threaded rod. A drive assembly is provided on the inner side of the base, the drive assembly comprising a mounting plate fixedly mounted on the bottom inner side of the base, a gear rotatably mounted on the inner side of the mounting plate, a gear ring fixedly mounted at the center position on the outer side of the bidirectional threaded rod, the gear ring meshing with the gear, and a third drive motor fixedly mounted on the outer side of the mounting plate, the output end of the third drive motor passing through the mounting plate and fixedly connected to the gear.

[0007] The base has a sliding base plate fixedly installed on its inner side, and two C-shaped slide plates are slidably installed on the top of the sliding base plate. A second drive motor is fixedly installed on the bottom of the base plate, and the output end of the second drive motor passes through the base plate and is fixedly connected to the bottom of the base.

[0008] The top of each of the two C-shaped skateboards is fixedly equipped with an arc-shaped locking post, the two arc-shaped locking posts are installed opposite each other, and the outer side of each of the two arc-shaped locking posts is fixedly equipped with a bottom support plate.

[0009] The base plate is fixedly mounted with a connecting bracket, and the connecting bracket is fixedly mounted with an electric actuator. The output end of the electric actuator passes through the top of the connecting bracket and is fixedly mounted with a pressure plate. The pressure plate is located at the top of the center position of the base.

[0010] The base plate is fixedly mounted with a linear slide rail on its top. A mounting base is slidably mounted on the outer side of the linear slide rail. A hydraulic rod is fixedly mounted on the top of the mounting base. A mounting bracket is fixedly mounted on the top of the output end of the hydraulic rod. A grinding tool is rotatably mounted on the inner side of the mounting bracket. A first drive motor is fixedly mounted on the outer side of the mounting bracket. The output end of the first drive motor passes through the mounting bracket and is fixedly connected to the grinding tool.

[0011] The mounting base has guide rods fixedly installed at the top four corners, and the guide rods move through the interior of the mounting bracket.

[0012] The base plate has support legs fixedly installed on both the front and rear sides of its bottom.

[0013] Beneficial effects Compared with existing technologies, it has the following advantages: 1. In this invention, the arc-shaped clamping post allows the clamping surface to precisely fit the outer contour of the gear shaft, forming a stable clamping from the inside of the gear shaft. This effectively prevents the workpiece from shifting or shaking during grinding, ensuring grinding accuracy. At the same time, it increases the adaptability range for gear shafts of different specifications and reduces the adaptation cost of special fixtures.

[0014] 2. In this invention, the power transmission path is stable and the transmission efficiency is high through the drive component, which can drive the bidirectional threaded rod to rotate smoothly and uniformly, thereby driving the two C-shaped slide plates to slide synchronously and precisely in opposite directions, realizing rapid adjustment of workpiece positioning, improving workpiece clamping efficiency, enhancing the stability of positioning adjustment, and reducing processing errors caused by adjustment deviations. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present invention.

[0017] Figure 2 This is a side view of the overall structure of an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the bottom structure of an embodiment of the present invention.

[0019] Figure 4 This is a top view of the structure of an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the top structure of the base according to an embodiment of the present invention.

[0021] In the diagram: 1. Base plate; 2. Connecting bracket; 3. Electric actuator; 4. Support leg; 5. Linear slide rail; 6. Mounting base; 7. Hydraulic rod; 8. Guide rod; 9. Mounting bracket; 10. Grinding tool; 11. First drive motor; 12. Pressure plate; 13. Second drive motor; 14. Base; 15. Sliding base plate; 16. Bottom support plate; 17. Arc-shaped locking post; 18. C-shaped sliding plate; 19. Drive assembly; 191. Mounting plate; 192. Third drive motor; 193. Gear; 194. Gear ring; 20. Long slide rod; 21. Bidirectional threaded rod. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1 Please see Figures 1 to 5 This invention provides a technical solution: a precision gear grinding mechanism, including a base plate 1, a base 14 rotatably mounted on the top of the base plate 1, a long slide rod 20 fixedly mounted between the front and rear sides inside the base 14, and two C-shaped slide plates 18 slidably mounted on the outer side of the long slide rod 20. A bidirectional threaded rod 21 is rotatably mounted between the front and rear sides inside the base 14, and the two C-shaped slide plates 18 are respectively screwed to the outer sides of different threads of the bidirectional threaded rod 21. A drive assembly 19 is provided on the inner side of the base 14, the drive assembly 19 including a mounting plate 191, the mounting plate 191 is fixedly mounted on the bottom inner side of the base 14, a gear 193 is rotatably mounted on the inner side of the mounting plate 191, a gear ring 194 is fixedly mounted at the center position on the outer side of the bidirectional threaded rod 21, the gear ring 194 and the gear 193 mesh, and a third drive motor 192 is fixedly mounted on the outer side of the mounting plate 191. The output end of the third drive motor 192 passes through the mounting plate 191 and is fixedly connected to the gear 193. First, the base 14 forms a rotatable connection with the top of the base plate 1 through a rotating mounting structure, providing a basis for adjusting the workpiece angle during subsequent grinding. For workpiece clamping and positioning adjustment, the core logic is that the drive assembly 19 outputs power and transmits it to the bidirectional threaded rod 21, thereby driving the two C-shaped slide plates 18 to slide synchronously in opposite directions. Specifically, the mounting plate 191 in the drive assembly 19 provides fixed support for the third drive motor 192 and the gear 193. When the third drive motor 192 starts, its output drives the coaxially fixed gear 193 to rotate. Since the gear 193 meshes with the toothed ring 194 fixed at the center of the outer side of the bidirectional threaded rod 21, the rotational motion of the gear 193 is converted into the rotational motion of the toothed ring 194, thereby driving the bidirectional threaded rod 21 to rotate around its own axis. Furthermore, since the two C-shaped sliding plates 18 are respectively screwed onto different threaded sections of the bidirectional threaded rod 21, namely the left-hand threaded section and the right-hand threaded section, and the C-shaped sliding plates 18 are sleeved on the outside of the long sliding rods 20 fixed on the front and rear sides inside the base 14 through a sliding installation structure, the long sliding rods 20 form a guide limit on the sliding direction of the C-shaped sliding plates 18, so that the rotational movement of the bidirectional threaded rod 21 is constrained to the linear movement of the two C-shaped sliding plates 18 along the axis of the long sliding rods 20, and the two movement directions are opposite to each other, approaching or moving away from each other, thereby realizing the clamping and positioning adjustment of workpieces of different sizes and specifications, and providing a stable workpiece fixing foundation for subsequent grinding processing.

[0024] Example 2 like Figures 1 to 5As shown, a sliding base plate 15 is fixedly installed on the inner side of the base 14. Two C-shaped slide plates 18 are slidably installed on the top of the sliding base plate 15. A second drive motor 13 is fixedly installed on the bottom of the base plate 1. The output end of the second drive motor 13 passes through the base plate 1 and is fixedly connected to the bottom of the base 14. Arc-shaped locking posts 17 are fixedly installed on the top of each of the two C-shaped slide plates 18. The two arc-shaped locking posts 17 are installed opposite each other. Bottom support plates 16 are fixedly installed on the outer sides of each of the two arc-shaped locking posts 17. A connecting bracket 2 is fixedly installed on the top of the base plate 1. An electric push rod 3 is fixedly installed on the top of the connecting bracket 2. The output end of the electric push rod 3 passes through the top of the connecting bracket 2 and is fixedly installed with a pressure plate 12. The pressure plate 12 is located at the top of the center of the base 14. A linear slide rail 5 is fixedly installed on the top of the base plate 1. A mounting seat 6 is slidably installed on the outer side of the linear slide rail 5. A hydraulic rod 7 is fixedly installed on the top of the mounting seat 6. A mounting bracket 9 is fixedly installed on the top of the output end of the hydraulic rod 7. A grinding tool 10 is rotatably installed on the inner side of the mounting bracket 9. A first drive motor 11 is fixedly installed on the outer side of the mounting bracket 9. The output end of the first drive motor 11 passes through the mounting bracket 9 and is fixedly connected to the grinding tool 10. Guide rods 8 are fixedly installed at the four corners of the top of the mounting seat 6. The guide rods 8 move through the interior of the mounting bracket 9. Support legs 4 are fixedly installed on the front and rear sides of the bottom of the base plate 1. The sliding base plate 15 is fixedly installed inside the base 14, providing a more stable sliding support surface for the two C-shaped slide plates 18 and ensuring the stability of the C-shaped slide plates 18 during the sliding process to both sides. When it is necessary to adjust the workpiece grinding angle, the second drive motor 13 fixed at the bottom of the base plate 1 is started, and its output end directly drives the coaxially fixed base 14 to rotate around its own axis. Since the workpiece is fixed by the clamping force applied to both sides from the inside of the shaft by the two C-shaped slide plates 18, the rotation of the base 14 synchronously drives the workpiece to adjust to the preset grinding angle, so as to meet the grinding processing requirements of different angles.Two C-shaped sliding plates 18 with oppositely mounted arc-shaped locking pins 17 are used to fit the outer circumference of the workpiece shaft. The bottom support plate 16 on the outer side of the arc-shaped locking pins 17 further enhances the structural stability of the arc-shaped locking pins 17. When the workpiece is opened or closed to both sides by the C-shaped sliding plates 18 and clamped by the inner side, and the angle adjustment is completed, the electric push rod 3 fixed to the top of the connecting bracket 2 is activated. The output end of the electric push rod 3 extends downward and drives the pressure plate 12 to move down vertically until the pressure plate 12 abuts against the upper surface of the workpiece at the top of the center position of the base 14. With the lateral clamping force applied from the inner side of the shaft by the arc-shaped locking pins 17, the workpiece is fixed in both the vertical and lateral directions, avoiding displacement of the workpiece during grinding. The mounting base 6 cooperates with the linear slide rail 5 on the top of the base plate 1 through a sliding mounting structure, and can slide along the linear slide rail. 5. Sliding along the axis allows for horizontal adjustment of the grinding tool 10. When adjusting the vertical height of the grinding tool 10 to match the workpiece grinding thickness, the hydraulic rod 7 on the top of the mounting base 6 is activated. The output end of the hydraulic rod 7 extends and retracts, driving the mounting bracket 9 to rise and fall vertically. Simultaneously, the guide rods 8 at the four corners of the top of the mounting base 6 pass through the interior of the mounting bracket 9, guiding and limiting the rising and falling movement of the mounting bracket 9 to prevent tilting during the rising and falling process, ensuring the accuracy of the grinding tool 10 height adjustment. After the grinding tool 10 is adjusted to the preset grinding position, the first drive motor 11 on the outside of the mounting bracket 9 is activated. Its output end drives the coaxially fixed grinding tool 10 to rotate at high speed around its own axis. The high-speed rotating grinding tool 10, driven by the sliding of the mounting base 6 along the linear slide rail 5, performs grinding on the fixed workpiece. The support legs 4 on the front and rear sides of the bottom of the base plate 1 provide a stable support foundation for the entire grinding mechanism, ensuring the overall stability of the mechanism during processing and preventing the grinding accuracy from being affected by the shaking of the mechanism.

[0025] Working principle: First, the workpiece is positioned and clamped through the cooperation of the drive assembly 19, the bidirectional threaded rod 21, the long slide rod 20, and the two C-shaped sliding plates 18. The mounting plate 191 in the drive assembly 19 provides fixed support for the third drive motor 192 and the gear 193. After the third drive motor 192 starts, it drives the gear 193 to rotate. The gear 193 meshes with the gear ring 194 on the bidirectional threaded rod 21, causing the bidirectional threaded rod 21 to rotate. Since the two C-shaped sliding plates 18 are respectively screwed to different threaded sections of the bidirectional threaded rod 21 and slidably sleeved on the outside of the long slide rod 20, the long slide rod 20 provides a guide limit for the C-shaped sliding plates 18, converting the rotational motion of the bidirectional threaded rod 21 into the synchronous reverse sliding of the two C-shaped sliding plates 18 along the axial direction of the long slide rod 20. This, in turn, drives the arc-shaped locking pins 17 mounted on the top to apply clamping force from the inside of the shaft to both sides, achieving clamping and positioning of workpieces of different sizes. The bottom support plate 16 on the outside of the arc-shaped locking pins 17... The stability of the clamping structure is enhanced, and the sliding base plate 15 on the inner side of the base 14 provides a stable support surface for the sliding of the C-shaped slide plate 18. After the workpiece is clamped, if the grinding angle needs to be adjusted, the second drive motor 13 at the bottom of the base plate 1 is started. Its output end drives the coaxially fixed base 14 to rotate around its own axis. The rotation of the base 14 synchronously drives the workpiece clamped above to be adjusted to the preset grinding angle. After the angle adjustment is completed, the electric push rod 3 at the top of the connecting bracket 2 is started. The output end of the electric push rod 3 drives the pressure plate 12 to move vertically downward until the pressure plate 12 abuts against the upper surface of the workpiece. With the lateral clamping force of the arc-shaped clamping post 17, the workpiece is fixed vertically and laterally. Then, the grinding process begins. The mounting seat 6 can slide along the linear slide rail 5 at the top of the base plate 1 to adjust the horizontal position of the grinding tool 10. After the hydraulic rod 7 at the top of the mounting seat 6 is started, it drives the mounting bracket 9 to rise and fall vertically to adjust the height of the grinding tool 10 to match the grinding thickness of the workpiece.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A precision gear grinding mechanism, comprising a base plate (1), characterized in that, A base (14) is rotatably mounted on the top of the base plate (1). A long slide rod (20) is fixedly mounted between the front and rear sides of the base (14). A C-shaped slide plate (18) is slidably mounted on the outer side of the long slide rod (20). There are two C-shaped slide plates (18). A bidirectional threaded rod (21) is rotatably mounted between the front and rear sides of the base (14). The two C-shaped slide plates (18) are respectively screwed onto the outer sides of different threads of the bidirectional threaded rod (21). A drive assembly (19) is provided on the inner side of the base (14). The device includes a mounting plate (191), which is fixedly installed on the inner bottom of the base (14). A gear (193) is rotatably installed on the inner side of the mounting plate (191). A gear ring (194) is fixedly installed at the center of the outer side of the bidirectional threaded rod (21). The gear ring (194) meshes with the gear (193). A third drive motor (192) is fixedly installed on the outer side of the mounting plate (191). The output end of the third drive motor (192) passes through the mounting plate (191) and is fixedly connected to the gear (193).

2. The precision gear grinding mechanism according to claim 1, characterized in that, A sliding base plate (15) is fixedly installed on the inner side of the base (14). Two C-shaped sliding plates (18) are slidably installed on the top of the sliding base plate (15). A second drive motor (13) is fixedly installed on the bottom of the base plate (1). The output end of the second drive motor (13) passes through the base plate (1) and is fixedly connected to the bottom of the base (14).

3. The precision gear grinding mechanism according to claim 1, characterized in that, The top of each of the two C-shaped skateboards (18) is fixedly equipped with an arc-shaped bracket (17), the two arc-shaped brackets (17) are installed opposite each other, and the outer sides of each of the two arc-shaped brackets (17) are fixedly equipped with a bottom support plate (16).

4. The precision gear grinding mechanism according to claim 1, characterized in that, A connecting bracket (2) is fixedly installed on the top of the base plate (1), and an electric push rod (3) is fixedly installed on the top of the connecting bracket (2). The output end of the electric push rod (3) passes through the top of the connecting bracket (2) and is fixedly installed with a pressure plate (12). The pressure plate (12) is located at the top of the center position of the base (14).

5. The precision gear grinding mechanism according to claim 1, characterized in that, A linear slide rail (5) is fixedly installed on the top of the base plate (1). A mounting seat (6) is slidably installed on the outer side of the linear slide rail (5). A hydraulic rod (7) is fixedly installed on the top of the mounting seat (6). A mounting bracket (9) is fixedly installed on the top of the output end of the hydraulic rod (7). A grinding tool (10) is rotatably installed on the inner side of the mounting bracket (9). A first drive motor (11) is fixedly installed on the outer side of the mounting bracket (9). The output end of the first drive motor (11) passes through the mounting bracket (9) and is fixedly connected to the grinding tool (10).

6. The precision gear grinding mechanism according to claim 5, characterized in that, Guide rods (8) are fixedly installed at the top four corners of the mounting base (6), and the guide rods (8) move through the interior of the mounting bracket (9).

7. The precision gear grinding mechanism according to claim 1, characterized in that, The bottom of the base plate (1) is fixedly installed with support legs (4) on both the front and rear sides.

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