Outer clamping mechanism facilitating machining of inner side of gear

By using an electric telescopic rod to drive the slider and the arc-shaped clamp to hold the outer side of the gear, combined with the groove and tooth block design, the positioning error problem in the machining of the inner side of the gear is solved, achieving high precision concentricity and stability, and improving the gear machining quality.

CN223544261UActive Publication Date: 2025-11-14上海万众实业股份有限公司
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Patent Information

Application Number
CN202422402130.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-11-14
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

In the existing technology, manual clamping during gear inner side machining can easily lead to positioning errors, resulting in radial displacement and axial offset, which affect the concentricity of the inner and outer circles of the gear and its meshing performance.

Method used

An electric telescopic rod is used to drive the slider to move, which in turn drives the arc-shaped clamp to hold the outside of the gear. Grooves and tooth blocks are set inside the clamp to ensure stability, achieve precise positioning and concentricity.

Benefits of technology

It improves the positioning accuracy and concentricity of gear machining, reduces the defect rate, and enhances machining quality and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an outer clamping mechanism facilitating machining of the inner side of a gear, and belongs to the technical field of gear machining. The gear clamping device is novel in design and ingenious in device, under the action of driving force, a first sliding block can move in the direction away from the arc-shaped clamps from the outside of a first sliding rail, a connecting frame is driven through a connecting plate, a second sliding block can move in the direction from the outside of a second sliding rail to a cylinder, and at the moment, the two arc-shaped clamps can move in the close direction to clamp the outer side of a gear; therefore, the positioning effect of the gear can be more accurate, the situation that position deviation and position inaccuracy are prone to occurring due to manual clamping is avoided, the concentricity of the gear during machining is guaranteed to a certain degree, and therefore the quality and accuracy of gear machining are improved, and defective products are reduced; and the stability of the gear in the clamping process can be ensured, the fastening degree of the gear is further improved, and the practicability of the device is greatly improved.
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Description

Technical Field

[0001] This application relates to the field of gear processing technology, and in particular to an external clamping mechanism that facilitates the processing of the inner side of gears. Background Technology

[0002] A gear is a mechanical component with teeth on its rim that can continuously mesh to transmit motion and power. Gears have been used in transmission for a long time. In the late 19th century, with the emergence of the principle of generating gear cutting and the special machine tools and cutting tools that use this principle for gear cutting, the smoothness of gear operation has become a focus of attention as production has developed.

[0003] Gear machining is a process that uses mechanical methods to obtain gears with specific structures and precision. Gears are the core transmission components in automobiles, and the quality of their machining has a direct impact on the vibration, noise, and reliability of the automobile assembly and even the whole vehicle. Sometimes it can become a key factor restricting the improvement of product quality.

[0004] When machining the inner side of a gear (such as the internal tooth surface or the inner hole step), a clamping tool is needed to fix the outer side of the gear to ensure machining accuracy. However, in the existing technology, manual clamping is commonly used. Manual operation is prone to positioning errors, which can cause radial displacement and axial offset of the gear during machining. Especially in machining scenarios where the concentricity of the inner and outer circles of the gear needs to be ensured (such as internal gear shaping), the instability of manual clamping can directly lead to out-of-tolerance tooth profile accuracy, thereby affecting the meshing performance and service life of the gear.

[0005] Therefore, this application proposes an external clamping mechanism that facilitates the machining of the inner side of gears, aiming to solve the problem of clamping and positioning accuracy during the machining of the inner side of gears. The positioning accuracy is improved by the mechanized clamping structure, ensuring the concentricity of the machining. Utility Model Content

[0006] This application proposes an external clamping mechanism for facilitating the machining of the inner side of gears, addressing the problems mentioned in the background art. The mechanism uses an electric telescopic rod to move a slider away from the arc-shaped clamp, allowing it to slide outside the slide rail. Simultaneously, a connecting plate drives a connecting frame, causing a second slider to move towards the cylinder outside the slide rail. The two arc-shaped clamps then move towards each other until they clamp the outer side of the gear, achieving a clamping effect and improving gear positioning accuracy. This avoids the positional shifts and inaccuracies that can occur with manual clamping, ensuring concentricity during gear machining and improving the quality and precision of gear machining, reducing defective products. Furthermore, by creating grooves within the arc-shaped clamps and installing multiple tooth blocks within these grooves, the stability of the gear during clamping is ensured, further enhancing the gear's tightness and significantly improving the device's practicality.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] An external clamping mechanism for facilitating the machining of the inner side of gears includes a frame and a cylinder. The cylinder is fixedly connected to one side of the frame. A transverse sliding assembly is fixedly connected to the outside of the cylinder. The transverse sliding assembly includes a slide rail, which is fixedly connected to the outside of the cylinder. A slider is slidably connected to the outside of the slide rail.

[0009] In a preferred embodiment, a longitudinal sliding assembly is fixedly connected to the outside of the cylinder. The longitudinal sliding assembly includes a fixing plate, two fixing plates are fixedly connected to the outside of the cylinder, and a second slide rail is fixedly connected to the side of each of the two fixing plates away from the frame. A second slider is slidably connected to the outside of each of the two slide rails.

[0010] By setting up a second slide rail and a second slider, the second slider can move longitudinally outside the second slide rail under the action of driving force, thereby improving the practicality of the device.

[0011] In a preferred embodiment, a connecting assembly is fixedly connected to the top of each of the two sliders 2. The connecting assembly includes a connecting frame. Both connecting frames are fixedly connected to the top of the slider 2. A connecting plate is rotatably connected to the top of each of the two connecting frames, and the side of each connecting plate away from the connecting frame is rotatably connected to the top of the slider 1.

[0012] By setting up a connecting frame and a connecting plate, slider one can drive slider two to achieve the moving effect, thereby improving the practicality of the device.

[0013] In a preferred embodiment, a clamping assembly is fixedly connected to the outside of both sliders 2. The clamping assembly includes clamping rods, both of which are fixedly connected to the outside of sliders 2. An arc-shaped clamp is fixedly connected to the end of each clamping rod away from sliders 2.

[0014] Driven by a driving force, the two arc-shaped clamps move in the same direction until they clamp the outer side of the gear, thus achieving a clamping effect. This makes the gear positioning more precise and avoids the positional deviation and inaccuracy that can easily occur when manually clamping the gear. To a certain extent, this ensures the concentricity of the gear during processing, thereby improving the quality and precision of gear processing, reducing defective products, and enhancing the practicality of the device.

[0015] In a preferred embodiment, both of the arc-shaped clamps are provided with an anti-displacement component inside. The anti-displacement component includes a groove, both of which are formed inside the arc-shaped clamps, and both of the grooves are provided with multiple tooth blocks inside.

[0016] By incorporating anti-displacement components and creating grooves within the arc-shaped clamp, multiple toothed blocks are installed in the grooves to ensure the stability of the gear during clamping. This further enhances the gear's tightness and improves the device's practicality.

[0017] In a preferred embodiment, a telescopic assembly is fixedly connected to one side of the frame and above the cylinder. The telescopic assembly includes an electric telescopic rod, which is fixedly connected to one side of the frame. A connecting block is fixedly connected to the telescopic end of the electric telescopic rod, and the side of the connecting block away from the electric telescopic rod is fixedly connected to the outside of the slider.

[0018] By setting up an electric telescopic rod and a connecting block, the electric telescopic rod can generate driving force, and the connecting block enables linkage, thereby improving the practicality of the device.

[0019] The beneficial effects of this application are:

[0020] 1. This external clamping mechanism, which facilitates the processing of the inner side of gears, uses the telescopic end of an electric telescopic rod to move a slider away from the arc-shaped clamp. The slider then slides outside the slide rail. Subsequently, a connecting plate drives a connecting frame, causing a second slider to move from outside the slide rail towards the cylinder. At this point, the two arc-shaped clamps move towards each other until they clamp the outer side of the gear. This achieves a clamping effect, making the gear positioning more precise and avoiding the positional deviation and inaccuracy that can easily occur with manual clamping. It also ensures concentricity during gear processing to a certain extent, thereby improving the quality and precision of gear processing, reducing defective products, and greatly enhancing the practicality of the device.

[0021] 2. This external clamping mechanism, which facilitates the processing of the inner side of gears, by setting anti-displacement components, grooves and tooth blocks, and opening grooves in the arc-shaped fixture, and setting multiple tooth blocks in the grooves, can ensure the stability of the gears during clamping, further improve the tightness of the gears, and greatly enhance the practicality of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main body of the device in this application;

[0023] Figure 2 This is a partial schematic diagram of the device described in this application;

[0024] Figure 3 This is a schematic diagram of the arc-shaped clamp of the device in this application;

[0025] Figure 4 This is a schematic diagram of the longitudinal sliding component of the device in this application.

[0026] The following are the labeling elements in the diagram: 1. Frame; 2. Cylinder; 3. Lateral sliding assembly; 31. Slide rail one; 32. Slider one; 4. Connecting assembly; 41. Connecting frame; 42. Connecting plate; 5. Longitudinal sliding assembly; 51. Fixing plate; 52. Slide rail two; 53. Slider two; 6. Clamping assembly; 61. Clamping rod; 62. Arc-shaped clamp; 7. Anti-displacement assembly; 71. Groove; 72. Tooth block; 8. Telescopic assembly; 81. Electric telescopic rod; 82. Connecting block. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] Reference Figure 1-2 An external clamping mechanism for facilitating the processing of the inner side of gears includes a frame 1 and a cylinder 2, with the cylinder 2 fixedly connected to one side of the frame 1.

[0029] Reference Figure 1-2 A transverse sliding assembly 3 is fixedly connected to the outside of the cylinder 2. The transverse sliding assembly 3 includes a slide rail 31, which is fixedly connected to the outside of the cylinder 2. A slider 32 is slidably connected to the outside of the slide rail 31. By setting the slide rail 31 and the slider 32, the slider 32 can achieve a transverse movement outside the slide rail 31 under the action of driving force, thereby improving the practicality of the device.

[0030] Reference Figure 1 , 2 4. A longitudinal sliding assembly 5 is fixedly connected to the outside of the cylinder 2. The longitudinal sliding assembly 5 includes a fixed plate 51. Both fixed plates 51 are fixedly connected to the outside of the cylinder 2. A slide rail 52 is fixedly connected to the side of the two fixed plates 51 away from the frame 1. A slider 53 is slidably connected to the outside of the two slide rails 52. By setting the slide rails 52 and sliders 53, under the action of driving force, the sliders 53 can achieve longitudinal movement outside the slide rails 52, thereby improving the practicality of the device.

[0031] Reference Figure 1 , 2 4. Connecting components 4 are fixedly connected to the top of both sliders 2 53. The connecting components 4 include connecting frames 41. Both connecting frames 41 are fixedly connected to the top of sliders 2 53. Connecting plates 42 are rotatably connected to the top of both connecting frames 41. The side of the two connecting plates 42 away from the connecting frames 41 is rotatably connected to the top of slider 1 32. By setting the connecting frames 41 and connecting plates 42, slider 1 32 can drive slider 2 53 to move, thereby improving the practicality of the device.

[0032] Reference Figure 1-4 Both sliders 53 are fixedly connected to a clamping assembly 6. The clamping assembly 6 includes clamping rods 61, both of which are fixedly connected to the outside of sliders 53. An arc-shaped clamp 62 is fixedly connected to the end of each clamping rod 61 away from sliders 53. Through the action of driving force, the two arc-shaped clamps 62 move in the same direction until the outer side of the gear is clamped. This achieves the clamping effect, making the positioning of the gear more accurate. It avoids the positional deviation and inaccuracy that are easily caused by manual clamping, and to a certain extent ensures the concentricity of the gear during processing. Thus, it improves the quality and accuracy of gear processing, reduces defective products, and enhances the practicality of the device.

[0033] Reference Figure 1-3 Both arc-shaped clamps 62 are equipped with anti-displacement components 7. The anti-displacement components 7 include grooves 71, both of which are formed inside the arc-shaped clamps 62. Both grooves 71 are equipped with multiple tooth blocks 72. By setting the anti-displacement components 7 and forming grooves 71 inside the arc-shaped clamps 62, and setting multiple tooth blocks 72 inside the grooves 71, the stability of the gear during clamping can be ensured, and the tightness of the gear can be improved, thereby enhancing the practicality of the device.

[0034] Reference Figure 1-2 A telescopic assembly 8 is fixedly connected to one side of the frame 1 and above the cylinder 2. The telescopic assembly 8 includes an electric telescopic rod 81, which is fixedly connected to one side of the frame 1. A connecting block 82 is fixedly connected to the telescopic end of the electric telescopic rod 81, and the side of the connecting block 82 away from the electric telescopic rod 81 is fixedly connected to the outside of the slider 32. By setting the electric telescopic rod 81 and the connecting block 82, the electric telescopic rod 81 can realize driving force, and the linkage is realized through the connecting block 82, thereby improving the practicality of the device.

[0035] Working principle: When in use, the electric telescopic rod 81 is activated. The telescopic end of the electric telescopic rod 81 drives the slider 32 to move away from the arc-shaped clamp 62. At this time, the slider 32 will slide outside the slide rail 31. Subsequently, the connecting plate 42 drives the connecting frame 41, causing the slider 53 to move outside the slide rail 52 towards the cylinder 2. At this time, the two arc-shaped clamps 62 will move in the same direction until the outer side of the gear is clamped. This achieves the clamping effect, making the gear positioning more accurate. It avoids the positional deviation and inaccuracy that are easily caused by manual clamping, and to a certain extent ensures the concentricity of the gear during processing. Thus, it improves the quality and accuracy of gear processing and reduces defective products. By setting the anti-displacement component 7, a groove 71 is opened in the arc-shaped clamp 62. Multiple tooth blocks 72 are set in the groove 71 to ensure the stability of the gear during clamping and further improve the tightness of the gear.

[0036] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. An external clamping mechanism for facilitating the machining of the inner side of gears, comprising a frame (1) and a cylinder (2), characterized in that, The cylinder (2) is fixedly connected to one side of the frame (1). A transverse sliding assembly (3) is fixedly connected to the outside of the cylinder (2). The transverse sliding assembly (3) includes a slide rail (31), which is fixedly connected to the outside of the cylinder (2). A slider (32) is slidably connected to the outside of the slide rail (31). The cylinder (2) is fixedly connected to a longitudinal sliding assembly (5). The longitudinal sliding assembly (5) includes a fixing plate (51). Both fixing plates (51) are fixedly connected to the outside of the cylinder (2). The side of the two fixing plates (51) away from the frame (1) is fixedly connected to a slide rail (52). The outside of the two slide rails (52) is slidably connected to a slider (53). The top of each of the two sliders (53) is fixedly connected to a connecting component (4). The connecting component (4) includes a connecting frame (41). The two connecting frames (41) are fixedly connected to the top of the sliders (53). The top of each of the two connecting frames (41) is rotatably connected to a connecting plate (42). The side of each connecting plate (42) away from the connecting frame (41) is rotatably connected to the top of the slider (32). Both of the two sliders (53) are fixedly connected to the outside of a clamping assembly (6). The clamping assembly (6) includes a clamping rod (61). Both clamping rods (61) are fixedly connected to the outside of the sliders (53). An arc-shaped clamp (62) is fixedly connected to the end of each clamping rod (61) away from the sliders (53). Both of the arc-shaped clamps (62) are provided with anti-displacement components (7), each anti-displacement component (7) including a groove (71). Both grooves (71) are opened inside the arc-shaped clamps (62), and both grooves (71) are provided with multiple toothed blocks (72).

2. The external clamping mechanism for facilitating the machining of the inner side of a gear according to claim 1, characterized in that, A telescopic assembly (8) is fixedly connected to one side of the frame (1) and above the cylinder (2). The telescopic assembly (8) includes an electric telescopic rod (81). The electric telescopic rod (81) is fixedly connected to one side of the frame (1). A connecting block (82) is fixedly connected to the telescopic end of the electric telescopic rod (81). The side of the connecting block (82) away from the electric telescopic rod (81) is fixedly connected to the outside of the slider (32).