High-precision edge grinding device for gear machining

Abstract

The utility model relates to gear machining technical field especially is a kind of high-precision grinding rib device for gear machining, including processing station, and be used for gear machining to be provided with processing mechanism on the processing station, processing mechanism includes: rotating assembly, including the sliding seat of fixed in the top front end sliding installation of processing station, the axle bracket is fixed in the upper end of sliding seat;Fixed component, including the mounting seat of rotation installation in axle bracket right end, mounting seat right end outer wall is fixed with baffle, four slide grooves of circumferential arrangement are set up in the inside of baffle, sliding bracket is slidably installed in the inside of slide groove, the right end of sliding bracket is fixed with bracing plate, and the inner wall of bracing plate is fixed with inclined sliding block;With self-locking characteristics by using inclined plane booster, multiple claw linkage clamping can be realized by single bolt operation, the concentricity and reliability of gear clamping are ensured, eccentric vibration in the processing process is effectively avoided, and stable datum is provided for high-precision grinding rib, and compact structure is provided simultaneously, and strong adaptability can be quickly changed.

Description

Technical Field

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

[0002] In the field of modern precision machinery manufacturing, gears are the core components of power transmission, and their processing quality directly affects the transmission efficiency, noise level and service life of mechanical equipment; in particular, plastic gears are widely used in high-tech fields such as automotive electronics, smart homes, precision instruments, and medical equipment due to their excellent characteristics such as light weight, self-lubrication, corrosion resistance and low noise. According to CN218591984U, a high-precision grinding device for gear processing is disclosed. This technology discloses a technical solution including "a worktable, a sliding groove at the top of the worktable, a sliding seat slidably installed in the sliding groove, and a driving mechanism provided in the sliding groove". It has the technical effect of "when the grinding tool needs to be replaced, the lifting seat is first moved downward by the cylinder. When the lifting seat moves, the supporting shaft is moved downward by the connecting rod and the supporting ring. When the supporting shaft moves downward, the connecting seat is moved downward, so that the driving gear is separated from the connecting seat. Then the lifting seat can be manually rotated to move another connecting seat below the driving gear. Then the lifting seat can be moved upward by the cylinder to insert the driving gear into the connecting seat. Then the first motor can drive the rotating shaft to rotate. When the rotating shaft rotates, the driving gear drives the connecting seat to rotate. When the connecting seat rotates, the supporting shaft drives the grinding tool to rotate, thereby realizing the replacement of the grinding tool". The clamping method described above cannot guarantee the precise concentricity of the gear's inner hole and the rotating shaft. During the machining process, radial runout and vibration will occur, resulting in uneven grinding, tooth surface damage, or incomplete deburring, which seriously affects the gear's meshing accuracy and product quality. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a high-precision grinding device for gear processing. Utilizing the force-increasing and self-locking characteristics of inclined planes, it can achieve multi-jaw linkage clamping through a single bolt operation, ensuring the concentricity and reliability of gear clamping, effectively avoiding eccentric vibration during processing, and providing a stable benchmark for high-precision grinding. At the same time, it has a compact structure, strong adaptability, and can be quickly changed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-precision grinding device for gear processing, comprising a processing table, wherein a processing mechanism is provided on the processing table for gear processing, and the processing mechanism includes: The rotating assembly includes a slide fixed to the front end of the top of the machining table and slidably mounted thereon, with a shaft bracket fixed to the upper end of the slide; The fixed assembly includes a mounting base rotatably mounted on the right end of the shaft bracket. A baffle is fixed to the outer wall of the right end of the mounting base. Four circumferentially arranged sliding grooves are opened inside the baffle. A slide frame is slidably mounted inside the sliding grooves. A support plate is fixed to the right end of the slide frame. An inclined slider is fixed to the inner wall of the support plate. A cylindrical rod is fixed to the center of the right end of the mounting base. An internal hexagon bolt is threaded through the right end of the cylindrical rod. A circular plate is rotatably mounted on the outer wall of the internal hexagon bolt. A circular sleeve is slidably mounted on the cylindrical rod. Four circumferentially arranged inclined guide rails are fixed to the outer wall of the circular sleeve. The inclined guide rails are slidably mounted with the inclined slider. A fixing rod is fixed between the circular plate and the inclined guide rails. A grinding assembly, set on a machining table, is used for grinding the edges of gears.

[0005] Preferably, the fixing component further includes two rollers rotatably mounted on the slide, with the two rollers located on the left and right sides of the baffle, respectively.

[0006] Preferably, the rotating assembly further includes a first motor mounted on the slide, and the output end of the first motor is fixed to the mounting base.

[0007] Preferably, the rotating assembly further includes a cylinder mounted on the top left end of the slide, a connecting frame fixed on the top of the processing table, and the output end of the cylinder fixed to the connecting frame.

[0008] Preferably, the grinding assembly includes a slide table set on the processing table, an X-axis slide table module is installed on the upper end of the slide table, a stand is fixed on the upper end of the X-axis slide table module, a bearing is fixed on the front end of the stand, a nylon brush wheel is rotatably installed on the right end of the bearing, a second motor is installed on the stand and used to drive the nylon brush wheel to rotate, a protective cover is fixed on the right end of the bearing and covers the outside of the nylon brush wheel, and a guide hopper is fixed at the lower end of the protective cover.

[0009] Preferably, the processing mechanism further includes a Y-axis slide module installed at the rear end of the top of the processing table, and the slide is installed on the Y-axis slide module, with a discharge hopper fixed at the upper end of the processing table.

[0010] Beneficial effects This invention provides a high-precision grinding device for gear processing. Compared with the prior art, it has the following advantages: 1. The rotating hexagonal socket bolt drives the threaded cylinder rod to generate axial displacement, which in turn drives the circular sleeve to slide along the cylinder rod axially through the circular plate and the fixed rod. The inclined guide rail on the circular sleeve and the inclined slider on the support plate form an inclined sliding pair, which converts the axial linear motion of the circular sleeve into the synchronous radial motion of the four slides in the groove of the baffle. This causes the four evenly distributed support plates to expand outward or contract inward, realizing automatic centering and clamping of gears with different inner diameters. Utilizing the force amplification and self-locking characteristics of the inclined plane, multi-jaw linkage clamping can be achieved through a single bolt operation, ensuring the concentricity and reliability of gear clamping, effectively avoiding eccentric vibration during processing, providing a stable reference for high-precision grinding, and at the same time, the structure is compact, highly adaptable, and can be quickly changed.

[0011] When the cylinder is activated, the reaction force propels the entire slide to move precisely in a straight line along the top guide rail of the machining table, enabling fine-tuning of the axial position of the clamped gear relative to the nylon brush wheel. This allows for flexible adjustment of the relative position between the gear end face and the nylon brush wheel. The X-axis slide module carried by the slide table drives the stand and bearing to perform precise horizontal feed motion, controlling the contact depth and grinding trajectory between the nylon brush wheel and the gear. The second motor drives the nylon brush wheel to rotate at high speed, achieving flexible grinding of the gear teeth. The nylon brush wheel is particularly suitable for processing plastic gears, effectively removing burrs without damaging the tooth surface. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rotating component in this utility model; Figure 3 This is a schematic diagram of the fixing component in this utility model; Figure 4 This is a cross-sectional structural diagram of the fixing component in this utility model; Figure 5 This is a schematic diagram of the grinding component in this utility model.

[0013] In the diagram: 1. Machining table; 2. Machining mechanism; 21. Rotating component; 211. Slide; 212. Shaft bracket; 213. First motor; 214. Cylinder; 215. Connecting frame; 22. Fixing component; 221. Mounting base; 222. Baffle; 223. Slide groove; 224. Slide frame; 225. Support plate; 226. Inclined slider; 227. Cylindrical rod; 228. Socket head bolt; 229. Circular plate; 2210. Circular sleeve; 2211. Inclined guide rail; 2212. Fixing rod; 2213. Roller; 23. Grinding component; 231. Slide table; 232. X-axis slide table module; 233. Stand; 234. Shaft seat; 235. Nylon brush wheel; 236. Second motor; 237. Protective cover; 238. Guide hopper; 24. Y-axis slide table module; 25. Discharge hopper. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a high-precision grinding device for gear processing, including a processing table 1, on which a processing mechanism 2 is provided for gear processing, the processing mechanism 2 including: The rotating assembly 21 includes a slide block 211 that is fixed to the front end of the top of the processing table 1 and is slidably mounted on it. A shaft bracket 212 is fixed to the upper end of the slide block 211. The fixing component 22 includes a mounting base 221 rotatably mounted on the right end of the shaft bracket 212. A baffle 222 is fixed to the outer wall of the right end of the mounting base 221. Four circumferentially arranged sliding grooves 223 are opened inside the baffle 222. A slide frame 224 is slidably mounted inside the sliding grooves 223. A support plate 225 is fixed to the right end of the slide frame 224. An inclined slider 226 is fixed to the inner wall of the support plate 225. A cylinder rod 227 is fixed to the center of the right end of the mounting base 221. An internal hexagon bolt 228 is threaded through the right end of the cylinder rod 227. A circular plate 229 is rotatably mounted on the outer wall of the internal hexagon bolt 228. A circular sleeve 2210 is slidably mounted on the cylinder rod 227. Four circumferentially arranged inclined guide rails 2211 are fixed to the outer wall of the circular sleeve 2210. The inclined guide rails 2211 and the inclined slider 226 are slidably mounted. A fixing rod 2212 is fixed between the circular plate 229 and the inclined guide rails 2211. The grinding assembly 23 is set on the machining table 1 and is used for grinding the gear edges.

[0016] In this embodiment, the rotating hexagonal socket bolt 228 drives the threaded cylinder 227 to generate axial displacement, which in turn drives the circular sleeve 2210 to slide axially along the cylinder 227 via the circular plate 229 and the fixed rod 2212. The inclined guide rail 2211 on the circular sleeve 2210 and the inclined slider 226 on the support plate 225 form an inclined sliding pair, which converts the axial linear motion of the circular sleeve 2210 into the synchronous radial motion of the four slides 224 in the groove 223 of the baffle 222. This causes the four circumferentially distributed support plates 225 to expand outward or contract inward, thereby achieving automatic centering and clamping of gears with different inner diameters. Utilizing the force amplification and self-locking characteristics of the inclined plane, multi-jaw linkage clamping can be achieved through a single bolt operation, ensuring the concentricity and reliability of gear clamping, effectively avoiding eccentric vibration during processing, providing a stable reference for high-precision grinding, and at the same time, the structure is compact, highly adaptable, and can be quickly changed.

[0017] Specifically, the fixing component 22 also includes two rollers 2213 rotatably mounted on the slide 224, and the two rollers 2213 are located on the left and right sides of the baffle 222 respectively.

[0018] In this embodiment, when the slide 224 moves radially in the slide groove 223, the original sliding friction is converted into rolling friction by the roller 2213, so as to ensure that the movement of the four support plates 225 is more stable and smooth.

[0019] Specifically, the rotating assembly 21 also includes a first motor 213 mounted on the slide 211, and the output end of the first motor 213 is fixed to the mounting base 221.

[0020] In this embodiment, the gear fixed on the fixed assembly 22 is driven to rotate by the output end of the first motor 213, ensuring that all teeth of the gear can enter the grinding area in sequence and accurately, so that the nylon brush wheel 235 can complete the full tooth profile without omission.

[0021] Specifically, the rotating assembly 21 also includes a cylinder 214 installed on the top left end of the slide 211, a connecting frame 215 fixed on the top of the processing table 1, and the output end of the cylinder 214 fixed to the connecting frame 215.

[0022] In this embodiment, when the cylinder 214 is activated, the entire slide block 211 is pushed to make precise linear motion along the top guide rail of the processing table 1 through the principle of reaction force, so as to realize the fine adjustment of the axial position of the clamped gear relative to the nylon brush wheel 235, and the relative position between the gear end face and the nylon brush wheel 235 can be flexibly adjusted.

[0023] Specifically, the grinding assembly 23 includes a slide 231 mounted on the processing table 1. An X-axis slide module 232 is mounted on the upper end of the slide 231. A stand 233 is fixed on the upper end of the X-axis slide module 232. A bearing seat 234 is fixed at the front end of the stand 233. A nylon brush wheel 235 is rotatably mounted on the right end of the bearing seat 234. A second motor 236 is mounted on the stand 233 and is used to drive the nylon brush wheel 235 to rotate. A protective cover 237 is fixed on the right end of the bearing seat 234 and covers the outside of the nylon brush wheel 235. A guide hopper 238 is fixed at the lower end of the protective cover 237.

[0024] In this embodiment, the X-axis slide module 232 carried by the slide 231 drives the stand 233 and the bearing 234 to perform precise horizontal feed motion, controlling the contact depth and grinding trajectory between the nylon brush wheel 235 and the gear; the second motor 236 drives the nylon brush wheel 235 to rotate at high speed, realizing flexible grinding of the gear teeth. The nylon brush wheel is particularly suitable for processing plastic gears, and can effectively remove burrs without damaging the tooth surface.

[0025] Specifically, the processing mechanism 2 also includes a Y-axis slide module 24 installed at the rear end of the top of the processing table 1, and the slide 231 is installed on the Y-axis slide module 24. A discharge hopper 25 is fixed inside the upper part of the processing table 1.

[0026] In this embodiment, the Y-axis slide module 24 and the X-axis slide module 232 form an orthogonal coordinate motion system, enabling the nylon brush wheel 235 to achieve precise two-dimensional planar motion relative to the gear being processed. This allows for the tracking and grinding of complex tooth profiles, significantly improving processing adaptability and accuracy. The protective cover 237 and the guide hopper 238 provide sealed protection for the processing area and directional collection of grinding debris. Together with the guide hopper 238 at the lower end, they form a continuous waste recycling channel, ensuring that the plastic powder generated during grinding can be completely collected and processed.

[0027] The working principle and usage process of this utility model are as follows: First, the operator places the plastic gear to be processed onto the support plate 225 area of ​​the fixed component 22, and uses a tool to rotate the internal hex bolt 228. Through the threaded transmission, the cylinder rod 227 is driven to move axially, and then the circular plate 229 and the fixed rod 2212 push the circular sleeve 2210 to slide along the cylinder rod 227. The inclined guide rail 2211 on the circular sleeve 2210 interacts with the inclined slider 226 on the support plate 225, converting the axial movement into the synchronous radial expansion of the four slides 224 in the sliding groove 223 of the baffle 222. Thus, the support plate 225 achieves automatic centering and flexible clamping from the gear's inner hole. During this process, the rollers 2213 on the slides 224 effectively reduce friction and ensure smooth clamping action. After clamping, the equipment is started and cylinder 214 is activated. Through the reaction force, the slide 211 is moved along the guide rail, and the gear is sent to the vicinity of the grinding station. Then, through the coordinated movement of the Y-axis slide module 24 and the X-axis slide module 232, the relative position of the nylon brush wheel 235 and the gear is accurately positioned. During processing, the first motor 213 drives the mounting base 221 and gear to rotate in an indexing manner, so that each tooth groove is aligned with the grinding edge position in sequence. At the same time, the second motor 236 drives the nylon brush wheel 235 to rotate at high speed. The X-axis and Y-axis modules move along a preset trajectory, so that the brush wheel accurately contacts the edge of the tooth to perform flexible grinding, remove burrs and round the edges. The grinding debris generated during the process is sealed and constrained by the protective cover 237 and collected and processed through the channel composed of the guide hopper 238 and the discharge hopper 25. After processing is completed, the cylinder 214 is reset and the workpiece is removed. The internal hex bolt 228 is rotated to loosen the clamp and the finished gear can be removed.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A high-precision grinding device for gear processing, comprising a processing table (1), characterized in that: The machining table (1) is equipped with a machining mechanism (2) for gear machining. The machining mechanism (2) includes: The rotating assembly (21) includes a slide (211) that is fixed to the front end of the top of the processing table (1) and is slidably mounted thereon. A shaft bracket (212) is fixed to the upper end of the slide (211). The fixed assembly (22) includes a mounting base (221) rotatably mounted on the right end of the shaft bracket (212). A baffle (222) is fixed to the outer wall of the right end of the mounting base (221). Four circumferentially arranged sliding grooves (223) are opened inside the baffle (222). A slide frame (224) is slidably mounted inside the sliding grooves (223). A support plate (225) is fixed to the right end of the slide frame (224). An inclined slider (226) is fixed to the inner wall of the support plate (225). A cylinder rod is fixed to the center of the right end of the mounting base (221). 227), a hexagonal bolt (228) is threaded through the right end of the cylinder (227), a circular plate (229) is rotatably mounted on the outer wall of the hexagonal bolt (228), a circular sleeve (2210) is slidably mounted on the cylinder (227), four circumferentially arranged inclined guide rails (2211) are fixed on the outer wall of the circular sleeve (2210), and the inclined guide rails (2211) are slidably mounted with the inclined slider (226), and a fixing rod (2212) is fixed between the circular plate (229) and the inclined guide rails (2211). The grinding assembly (23) is set on the machining table (1) and used for grinding the gear edges.

2. The high-precision grinding device for gear processing according to claim 1, characterized in that: The fixing component (22) also includes two rollers (2213) rotatably mounted on the slide (224), and the two rollers (2213) are located on the left and right sides of the baffle (222) respectively.

3. The high-precision grinding device for gear processing according to claim 1, characterized in that: The rotating assembly (21) also includes a first motor (213) mounted on a slide (211), and the output end of the first motor (213) is fixed to the mounting base (221).

4. The high-precision grinding device for gear processing according to claim 1, characterized in that: The rotating assembly (21) also includes a cylinder (214) installed on the top left end of the slide (211), a connecting frame (215) is fixed on the top of the processing table (1), and the output end of the cylinder (214) is fixed to the connecting frame (215).

5. The high-precision grinding device for gear processing according to claim 1, characterized in that: The grinding assembly (23) includes a slide (231) set on the processing table (1), an X-axis slide module (232) is installed on the upper end of the slide (231), a stand (233) is fixed on the upper end of the X-axis slide module (232), a bearing seat (234) is fixed at the front end of the stand (233), a nylon brush wheel (235) is rotatably installed on the right end of the bearing seat (234), a second motor (236) is installed on the stand (233) and used to drive the nylon brush wheel (235) to rotate, a protective cover (237) is fixed on the right end of the bearing seat (234) and covers the outside of the nylon brush wheel (235), and a guide hopper (238) is fixed at the lower end of the protective cover (237).

6. The high-precision grinding device for gear processing according to claim 5, characterized in that: The processing mechanism (2) also includes a Y-axis slide module (24) installed at the top rear end of the processing table (1), and the slide (231) is installed on the Y-axis slide module (24). A discharge hopper (25) is fixed inside the upper part of the processing table (1).

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