Gear end face chamfering device

Abstract

The utility model discloses a gear end face chamfering device, including grinding machine, chamfering workstation, multiaxis frock subassembly and fixed in the reciprocating feed assembly of chamfering workstation inside. Multiaxis frock subassembly sliding installation is in the chamfering workstation surface, and the grinding machine is used to the tooth edge of gear end face and carries out polishing chamfering, and multiaxis frock subassembly includes slide, steering column and the gear shaft of rotation installation in the steering column surface, and the both sides of slide are equipped with first drive motor and second drive motor respectively, and the steering column rotation installation is in the slide surface. The utility model discloses through the collaborative work of servo motor, steering column, gear shaft and reciprocating feed assembly, realizes the multiaxis linkage chamfering processing of gear autorotation, deflection and advance and retreat movement, and the grinding machine is equipped with angle and position adjusting structure, can be flexible adaptation different specifications gear, and the overall structure is compact, and the degree of automation is high, can significantly improve the uniformity and precision of gear end face chamfering, is applicable to the efficient processing of multi-specification gear.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically a gear end face chamfering device. Background Technology

[0002] Currently, in the field of gear manufacturing and finishing, gear end face chamfering is one of the key processes in gear processing. Its main function is to remove burrs and sharp angles from the gear ends to prevent stress concentration or noise during meshing. However, existing gear end face chamfering equipment generally suffers from low automation, poor chamfering consistency, and complex adjustment, making it difficult to meet the requirements of high-precision mass production.

[0003] In traditional processes, chamfering of gear end faces often employs a single-axis grinding wheel method, where a fixed grinding wheel is used to manually or semi-automatically trim the edges of the workpiece end face. This type of structure typically includes a fixed grinding wheel, a manual fixture, and an adjustable worktable. The operator must manually adjust the contact angle between the gear and the grinding wheel and continuously control the feed speed during the chamfering process. Because the gear needs to rotate in multiple directions during chamfering to ensure uniform grinding of all tooth edges, manual control makes it difficult to ensure the coordination of gear rotation and forward / backward movement, easily leading to inconsistent chamfer depth and angles. Furthermore, this manual method is labor-intensive, inefficient, and unsuitable for continuous mass production.

[0004] To improve efficiency, some equipment uses a single-axis or dual-axis linkage structure driven by a motor, which completes the chamfering by rotating a gear shaft in conjunction with a grinding wheel. However, such devices generally lack an independent reciprocating feed mechanism. During the grinding process, the gears only rely on a fixed angle to contact the grinding wheel, which cannot form dynamic compensation. When the gear size or end face angle changes, the tooling positioning needs to be readjusted, and the adjustment steps are cumbersome and have poor repeatability.

[0005] In addition, although some devices have introduced electric slides or pneumatic propulsion structures to achieve linear gear feed, they still use a single-direction drive mode. The sliding accuracy is greatly affected by guide rail friction, and gaps are prone to form after long-term use, causing the chamfering trajectory to deviate. At the same time, the fixed position and non-adjustable angle of the grinding wheel make it difficult to control the chamfering angle of gears with different diameters or modules, resulting in uneven machined surfaces or discontinuous chamfers.

[0006] In view of this, this paper studies and improves the existing problems, and provides a gear end face chamfering device to solve the current problems. The aim is to solve the problems and improve the practical value through this technology. Utility Model Content

[0007] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0008] Therefore, the technical solution adopted by this utility model is as follows: a gear end face chamfering device, including a grinding wheel, a chamfering stand, a multi-axis tooling assembly, and a reciprocating feed assembly fixed inside the chamfering stand. The multi-axis tooling assembly is slidably installed on the surface of the chamfering stand, and the grinding wheel is used to grind and chamfer the gear end face teeth; the multi-axis tooling assembly includes a slide, a rudder, and a gear shaft rotatably installed on the surface of the rudder; a first drive motor and a second drive motor are respectively installed on both sides of the slide; the rudder is rotatably installed on the surface of the slide, and one end is fixedly connected to the output end of the second drive motor; the rudder has a bevel gear shaft inside and meshes with the first drive motor for transmission; the bevel gear shaft is connected to the gear shaft for transmission via a belt; the gear shaft is used to install the gear to be chamfered. The reciprocating feed assembly includes a motor, a turntable, and a crank pin. The crank pin is detachably mounted on the surface of the turntable. The slide surface is provided with a sliding sleeve groove, and the crank pin is slidably sleeved inside the sliding sleeve groove. The turntable surface is provided with multiple radially arranged insertion holes for crank pin insertion and positioning, thereby realizing the reciprocating motion of the multi-axis tooling assembly.

[0009] Through the above structural design, the coordinated motion of gear rotation, rudder deflection and slide reciprocating feed is realized, so that the grinding wheel and the gear end face tooth edge maintain stable contact, thereby obtaining a uniform and continuous chamfering effect.

[0010] In a preferred example, the slide of the multi-axis tooling assembly is connected to the chamfered fixture via a guide rail assembly to achieve reciprocating sliding along the fixture direction. Specifically, the guide rail assembly adopts a linear guide rail structure, which reduces sliding resistance and ensures motion accuracy, thereby ensuring a smooth and consistent chamfering trajectory and avoiding uneven chamfering on the gear surface.

[0011] In a preferred example, both the first and second drive motors employ servo motor structures and are equipped with independent control modules. Specifically, this configuration allows for independent adjustment of the rotation angle and speed of the servo head and gear shaft, achieving multi-axis synchronous operation. Through coordinated control of the control modules, the gears maintain a linkage between rotation and deflection during the chamfering process, significantly improving the consistency of the chamfered surface angle and machining stability.

[0012] In a preferred example, the rotation angle of the servo head is monitored in real time by an encoder detection module to achieve closed-loop control of the angular position. Specifically, the encoder can acquire the servo head rotation position signal in real time and feed it back to the control system. By adjusting the output of the drive motor, precise control of the servo head rotation angle is achieved, thereby ensuring that the gear shaft posture is consistent with the position of the grinding wheel and improving the chamfering angle control accuracy.

[0013] In a preferred example, the motor output of the reciprocating feed assembly is connected to the turntable via a reduction gear mechanism to reduce the transmission speed and increase the output torque. Specifically, the reduction gear transmission can smoothly drive the turntable to rotate, avoiding uneven slide movement caused by instantaneous impact, and achieving uniform reciprocating motion of the crank pin, thereby ensuring stable chamfering feed speed and preventing fluctuations in the chamfering depth of the gear end face.

[0014] In a preferred example, the sliding sleeve groove can be a straight long groove or an arc-shaped groove structure, with a rolling guide pair installed within the groove. Specifically, the rolling guide pair reduces the frictional resistance between the crank pin and the sliding groove, improves sliding smoothness and repeatability, thereby maintaining structural stability during high-speed reciprocating processes and extending the service life and chamfering accuracy of the equipment.

[0015] In a preferred example, the bottom of the grinding wheel machine is equipped with an angle adjustment structure and a sliding adjustment structure for adjusting the attitude and position of the grinding wheel machine. Specifically, the angle adjustment structure is used to control the tilt angle of the grinding wheel relative to the end face of the gear, and the sliding adjustment structure is used to adjust the initial contact position between the grinding wheel and the gear, ensuring that the chamfer angle and machining trajectory are adjustable, thereby achieving compatible machining of gears with different modules and different end face angles.

[0016] In a preferred example, the chamfered fixture employs a one-piece steel structure and is equipped with limit stops to support the slide rails and prevent overtravel. Specifically, this structure enhances the overall rigidity and stability of the device, ensuring the linear accuracy and vibration resistance of the multi-axis tooling assembly during reciprocating motion, and improving machining consistency.

[0017] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting up a linkage structure between a multi-axis tooling assembly and a reciprocating feed assembly, and utilizing a combination of a slide, a rudder, a gear shaft, and dual drive motors, multi-axis synchronous motion of the gear during the chamfering process is achieved. This structure enables the gear to reciprocate along the grinding wheel direction while rotating, thereby making the end face tooth edges more evenly ground by the grinding wheel, resulting in high consistency of chamfering angles, and significantly improving the processing accuracy and production efficiency of the gear end face.

[0018] 2. In this utility model, the reciprocating feed assembly adopts a combination mechanism of motor, turntable and adjustable crank pin. By changing the position of the crank pin insertion hole, the stroke amplitude and reciprocating frequency can be flexibly adjusted to adapt to the processing requirements of gears of different sizes. The rolling guide pair inside the sliding sleeve groove effectively reduces frictional resistance and ensures sliding stability; the grinding wheel is equipped with an angle adjustment and sliding adjustment structure, which can achieve precise alignment according to the gear size and end face angle. The overall structure is easy to adjust, has high processing efficiency and stable chamfering effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of a multi-axis tooling assembly and a reciprocating feed assembly according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the rudder in one embodiment of the present invention; Figure 4 This is an exploded view of the slide and reciprocating feed assembly according to an embodiment of the present invention.

[0020] Figure label: 100. Grinding wheel machine; 200. Chamfering fixture; 300. Multi-axis tooling assembly; 310. Slide block; 320. Rudder station; 330. Gear shaft; 311. First drive motor; 312. Second drive motor; 313. Sliding sleeve groove; 321. Bevel gear shaft; 400. Reciprocating feed assembly; 410. Motor; 420. Turntable; 430. Crank pin; 421. Socket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a gear end face chamfering device.

[0024] Combination Figures 1-4 As shown, the present invention provides a gear end face chamfering device, including a grinding wheel 100, a chamfering stand 200, a multi-axis tooling assembly 300, and a reciprocating feed assembly 400 fixed inside the chamfering stand 200.

[0025] The multi-axis tooling assembly 300 is slidably mounted on the surface of the chamfering stand 200. The grinding wheel 100 is positioned on one side of the chamfering stand 200 and is used to grind and chamfer the end face teeth of the gears mounted on the surface of the multi-axis tooling assembly 300. The bottom of the grinding wheel 100 is equipped with an angle adjustment structure and a sliding adjustment structure. The operator can adjust the grinding angle of the grinding wheel 100 through the angle adjustment structure and accurately position the initial position of the grinding wheel 100 through the sliding adjustment structure to adapt to gears of different diameters and end face widths.

[0026] The multi-axis tooling assembly 300 includes a slide 310, a rudder 320, and a gear shaft 330 rotatably mounted on the surface of the rudder 320. The slide 310 is connected to the chamfering fixture 200 via a guide rail assembly, used to achieve reciprocating sliding motion during the chamfering process. The guide rail assembly adopts a linear guide rail structure to ensure smoothness and accuracy of sliding. A first drive motor 311 and a second drive motor 312 are fixedly mounted on both sides of the slide 310, respectively, for driving the rudder 320 and its internal bevel gear transmission mechanism.

[0027] The servo mount 320 is rotatably mounted on the surface of the slide 310, with one end fixedly connected to the output end of the second drive motor 312 for driving the servo mount 320 to rotate. A bevel gear shaft 321 is rotatably mounted on the inner side of the servo mount 320. The bevel gear shaft 321 meshes with the output end of the first drive motor 311 for power steering via the bevel gear pair. The bevel gear shaft 321 and the surface of the gear shaft 330 are synchronously driven by a belt. The outer end of the gear shaft 330 is used to mount gear components. The belt adopts a synchronous toothed belt structure, and the pulley is a double-flange type to prevent the belt from derailing during high-speed operation. Through this structure, the servo mount 320 can drive the gear shaft 330 to achieve multi-angle rotation and chamfering.

[0028] To improve the positioning accuracy of the machining, the rotation angle of the servo 320 is monitored in real time by the encoder detection module. The control system can correct the rotation angle of the second drive motor 312 according to the encoder feedback signal to ensure the angular positioning accuracy and repeatability of the gear shaft 330 during the chamfering process.

[0029] The reciprocating feed assembly 400 is installed inside the chamfered fixture 200 and is used to drive the multi-axis tooling assembly 300 to reciprocate along the chamfered fixture direction. This assembly includes a motor 410, a turntable 420, and a crank pin 430 detachably mounted on the surface of the turntable 420. The output end of the motor 410 is connected to the turntable 420 via a reduction mechanism to reduce the output speed and increase the driving torque, thereby adjusting the reciprocating speed and stroke frequency of the crank pin 430.

[0030] The surface of the turntable 420 has several radially arranged insertion holes 421. The crank pin 430 can be inserted into the inner side of different insertion holes 421 to adjust the reciprocating stroke. The surface of the slide 310 has a sliding sleeve groove 313. The crank pin 430 is slidably sleeved on the inner side of the sliding sleeve groove 313. The rotation of the turntable 420 drives the slide 310 to reciprocate, realizing the periodic advance and retreat of the gear relative to the grinding wheel 100. The sliding sleeve groove 313 can be designed as a straight long groove or an arc groove structure according to different application requirements. It has a rolling guide pair inside to reduce the sliding friction of the crank pin 430 and improve the smoothness of the reciprocating transmission and the machining accuracy.

[0031] In a preferred embodiment, both the first drive motor 311 and the second drive motor 312 are servo motors, each equipped with an independent control module for driving the bevel gear shaft 321 and the servo unit 320 to achieve synchronous rotation control. Through the coordinated operation of the control modules, the speed and angle of each shaft can be adjusted in real time according to the gear shape and chamfering path, improving the consistency of the chamfered surface.

[0032] During operation, the operator mounts the gear at the end of the gear shaft 330 and secures it using a positioning fixture. After starting the reciprocating feed assembly 400, the slide 310 drives the gear to reciprocate linearly along the guide rail. Simultaneously, the rudder 320 rotates under the drive of the second drive motor 312, achieving multi-angle chamfering of the gear. The first drive motor 311 drives the gear shaft 330 to rotate in an indexing manner via the bevel gear shaft 321, causing each edge of the gear end face to sequentially contact the grinding wheel 100. After adjusting the angle and position of the grinding wheel 100, the grinding wheel can form a uniform chamfer along the edge of the gear end face. The entire chamfering process is highly automated, significantly improving chamfering accuracy and consistency.

[0033] In summary, this invention, through the combined structure of the slide 310, rudder 320, gear shaft 330, reciprocating feed assembly 400, and grinding wheel 100, achieves multi-axis linkage and automatic forward / backward control for gear end face chamfering. Through the coordinated control of the servo motor and encoder, the chamfering angle and path can be precisely adjusted to ensure consistent machining surface. This device is compact, has smooth transmission, and is easy to adjust, making it suitable for high-precision end face chamfering of gears of different specifications.

[0034] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gear end face chamfering device, characterized in that, It includes a grinding wheel (100), a chamfering stand (200), a multi-axis tooling assembly (300), and a reciprocating feed assembly (400) fixed inside the chamfering stand (200). The multi-axis tooling assembly (300) is slidably mounted on the surface of the chamfering base (200), and the grinding wheel (100) is used to grind and chamfer the tooth edges on the gear end face of the multi-axis tooling assembly (300). The multi-axis tooling assembly (300) includes a slide (310), a rudder (320), and a gear shaft (330) rotatably mounted on the surface of the rudder (320). A first drive motor (311) and a second drive motor (312) are fixedly mounted on both sides of the slide (310). The rudder (320) is rotatably mounted on the surface of the slide (310) and one end is fixedly connected to the output end of the second drive motor (312). A bevel gear shaft (321) is rotatably mounted on the inner side of the rudder (320), and the bevel gear shaft (321) meshes with the output end of the first drive motor (311) for transmission. The bevel gear shaft (321) and the surface of the gear shaft (330) are synchronously transmitted through a belt. The gear shaft (330) is used to fit a gear for gear tooling. The reciprocating feed assembly (400) includes a motor (410), a turntable (420), and a crank pin (430) detachably mounted on the surface of the turntable (420). The surface of the slide (310) is provided with a sliding sleeve groove (313), and the crank pin (430) is slidably sleeved on the inner side of the sliding sleeve groove (313). The surface of the turntable (420) is provided with a plurality of radially arranged insertion holes (421) for the insertion and positioning of the crank pin (430).

2. The gear end face chamfering device according to claim 1, characterized in that, The slide (310) is connected to the chamfered workbench (200) via a guide rail assembly to realize the reciprocating sliding motion of the multi-axis tooling assembly (300).

3. The gear end face chamfering device according to claim 1, characterized in that, The first drive motor (311) and the second drive motor (312) are both servo motors, and each is equipped with an independent control module to drive the bevel gear shaft (321) and the rudder (320) to rotate synchronously.

4. The gear end face chamfering device according to claim 1, characterized in that, The rotation angle of the rudder (320) is monitored in real time by the encoder detection module to ensure the angular positioning accuracy of the gear shaft (330) during the chamfering process.

5. The gear end face chamfering device according to claim 1, characterized in that, The output end of the motor (410) of the reciprocating feed assembly (400) is connected to the turntable (420) through a reduction mechanism to adjust the reciprocating speed and stroke frequency of the crank pin (430).

6. The gear end face chamfering device according to claim 1, characterized in that, The sliding sleeve groove (313) is a straight long groove or an arc groove structure, and is equipped with a rolling guide pair inside, which is used to reduce the sliding friction of the crank pin (430) and improve the reciprocating accuracy.

7. The gear end face chamfering device according to claim 1, characterized in that, The grinding wheel (100) is provided with an angle adjustment structure and a sliding adjustment structure at the bottom for adjusting the initial position of the grinding wheel (100).

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