A rotary grinding device for gear processing

By designing isosceles trapezoidal grinding blocks and auxiliary components, combined with a hydraulic system and high-pressure coolant, the problem of insufficient gear grinding is solved, and efficient and automated grinding of gear rings is achieved to meet high-precision machining requirements.

CN120502777BActive Publication Date: 2025-09-19TAIZHOU JIALE METAL PROD CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202511005693.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-09-19
Estimated Expiration
2045-07-22

AI Technical Summary

Technical Problem

Existing gear grinding devices are unable to fully grind the tooth gaps, resulting in residual burrs and unevenness on the inner wall, affecting transmission accuracy and service life, and making it difficult to meet high-precision requirements.

Method used

The cross-section of the grinding block is designed to be an isosceles trapezoid. Combined with auxiliary components and a hydraulic system, it can achieve synchronous grinding of the side and bottom surfaces of the teeth. Automatic control is achieved through pressure sensors and electric push rods, and cleaning is carried out with high-pressure coolant and a brush.

Benefits of technology

It improves the grinding efficiency and accuracy, ensures that all surfaces of the gear ring are evenly ground, reduces manual errors and cleaning costs, meets high-precision processing requirements, and improves the quality and service life of the gear ring.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120502777B_ABST
    Figure CN120502777B_ABST
Patent Text Reader

Abstract

The present invention belongs to the technical field of mechanical parts processing, specifically a rotary grinding device for gear processing, comprising a body, the upper surface of the body is fixedly connected to a side plate, one side of the side plate is provided with a three-jaw chuck, the three-jaw chuck is clamped with a gear ring, the upper surface of the body is fixedly connected to a fixed platform, one side of the fixed platform is provided with a grinding assembly, the grinding assembly includes a grinding block slidably connected to one side of the fixed platform, the upper surface of the body is provided with a collection groove for collecting coolant and metal debris, and baffles are rotatably connected to both sides of the collecting groove, the cross-section of the grinding block is an isosceles trapezoid, and its cross-section is the same as the cross-section between two teeth of the gear ring, and auxiliary components are provided on both sides of the grinding block, the auxiliary component includes a fixed groove opened on the side wall of the grinding block, and a roller is slidably connected in the fixed groove. By arranging the grinding assembly, the problem of insufficient grinding in the existing technology is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical parts processing, in particular to a rotary grinding device for gear processing. Background Art

[0002] Gears are widely used mechanical transmission components in industry. Their quality and precision play a crucial role in the performance of equipment. In actual production, burrs and irregular shapes inevitably appear on gear surfaces, which can affect their performance and service life. Therefore, to ensure optimal performance and extend their service life, gears are typically ground to eliminate surface defects.

[0003] A patent with publication number CN117983900A discloses a rotary grinding device for gear processing, comprising a grinding seat, a gear clamp installed on the grinding seat, and a lifting seat movably installed on the grinding seat through a support, a rotating seat rotatably installed on the lifting seat, and a grinding assembly is provided on the rotating seat, a folding groove and an inclined water trough are provided on the grinding seat, and a magnetic suction plate is embedded in the inclined water trough, and the folding groove is located on both sides of the inclined water trough, a protective plate is rotatably installed on the folding groove through a folding axis, and the folding axis is connected to a rotating drive structure provided in the grinding seat, a pushing seat is fixedly installed in the inclined water trough, and a telescopic structure is provided in the pushing seat, a push plate is connected to the telescopic structure, and side plates are rotatably installed on both sides of the push plate, when the push plate is retracted, the side plates are tilted and folded, and when the push plate is extended, the side plates pop out to a state flush with the push plate; the purpose of flexibly performing gear grinding and providing protection, and effectively separating and collecting grinding fertilizer is achieved.

[0004] During the use of existing gear grinding devices, there are obvious grinding limitations. Since the cross-sectional shape between the two teeth of the gear is similar to an isosceles trapezoid, the inner wall space is relatively narrow and has a certain inclination angle. However, in the existing grinding mechanism, the grinding parts are mostly designed to be cylindrical. When such cylindrical grinding parts enter the tooth gap, the contact area with the inner wall is limited and cannot fit tightly with the inclined surface of the inner wall. During the grinding process, it is difficult for the cylindrical parts to penetrate into every corner of the tooth gap, resulting in insufficient grinding of the inner wall between the two teeth, which may leave burrs, unevenness and other problems, thereby affecting the transmission accuracy and service life of the gear, and it is difficult to meet the grinding requirements of high-precision gears.

[0005] To this end, the present invention provides a rotary grinding device for gear processing. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The gear ring is fixed with a three-jaw chuck on one side of the side plate, and the three-jaw chuck is clamped with a gear ring. The upper surface of the body is fixed with a fixed platform, and a grinding assembly is provided on one side of the fixed platform. The grinding assembly includes a grinding block slidably connected to one side of the fixed platform, and the upper surface of the body is provided with a collecting groove for collecting coolant and metal debris, and baffles are rotatably connected to both sides of the collecting groove, the cross section of the grinding block is an isosceles trapezoid, and its cross section is the same as the cross section between the two teeth of the gear ring, and auxiliary components are provided on both sides of the grinding block, and the auxiliary component includes a fixed groove opened on the side wall of the grinding block, and a roller is slidably connected in the fixed groove, and the roller can grind the bottom surface of the tooth.

[0008] Preferably, a sliding groove is provided on one side of the fixed table, and a sliding block is slidably connected to the circumferential surface of the screw in the sliding groove, the screw is fixedly connected to the output end of the motor on the upper surface of the fixed table, one side of the sliding block is fixedly connected to a sliding frame, one side of the sliding frame is rotatably connected to a rotating block, one side of the rotating block is fixedly connected to a first hydraulic cylinder, and the output end of the first hydraulic cylinder is fixedly connected to the sanding block.

[0009] Preferably, fixed grooves are provided on both sides of the sanding block, a plurality of fixed teeth are fixedly connected to the inner wall of the fixed groove, a connecting block is slidably connected in the fixed groove, one side of the connecting block is rotatably connected to a fixed gear, the fixed gear is fixed to a roller, one side of the roller is rotatably connected to a connecting plate, one end of the connecting plate is fixedly connected to an auxiliary plate, one side of the auxiliary plate is fixedly connected to a pressure sensor, the other side of the auxiliary plate is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to the electric push rod on one side of the rotating block.

[0010] Preferably, when the first hydraulic cylinder drives the sanding block to perform reciprocating sanding on the inner wall between the two teeth, when half of the sanding block is aligned with the gear ring, the pressure sensor on one side of the abutment plate abuts against the outer wall of the gear ring, the pressure sensor is triggered, and the electric push rod is started to retract, driving the connecting rod and the connecting plate to move backward. During this process, the connecting plate will pull the roller backward, and during the backward movement of the roller, the fixed gear will slide along the fixed groove on the side wall of the sanding block. During the sliding process, the fixed gear rotates along the fixed teeth, thereby driving the roller to rotate, and grinding the bottom surface of the gear ring teeth.

[0011] Preferably, a fixed block is fixedly connected to the upper surface of the rotating block, a nozzle is fixedly connected to one side of the fixed block, the nozzle is connected to an external coolant injection device, and the nozzle is used to spray coolant on the sanding block.

[0012] Preferably, a fixing rod is fixedly connected to one side of the rotating block, a fixing frame is fixedly connected to one side of the fixing rod, a regulating component is arranged in the fixing frame, the regulating component includes an insert plate slidably arranged in the fixing frame, and the insert plate is used to seal the fixing hole and the connecting hole opened in the fixing frame.

[0013] Preferably, a limiting groove is provided in the fixed frame, an auxiliary hole is provided on one side of the limiting groove, a telescopic rod is fixedly connected to the inner wall of the limiting groove, a compression spring is sleeved on the circumferential surface of the telescopic rod, one end of the telescopic rod and the compression spring is fixedly connected to the same plug plate, the plug plate is plugged into the auxiliary hole, and auxiliary frames are fixedly connected to both sides of the fixed frame, a rotating roller driven by a micro motor is rotatably connected in the positioning groove of the auxiliary frame, and a positioning hole with the same cross-section as the connecting hole is provided on the surface of the plug plate.

[0014] Preferably, a brush block is fixedly connected to the bottom surface of the fixing frame, and the brush block is communicated with a fixing hole provided in the fixing frame.

[0015] Preferably, when high-pressure coolant is sprayed out of the nozzle, the coolant of the high-pressure fluid will impact the plug plate, causing the plug plate to slide along the inner wall of the fixed frame and thus be inserted into the auxiliary hole. During the sliding process, the compression spring and the telescopic rod will be pulled to move. After the plug plate slides, the positioning holes on both sides thereof will be aligned with the connecting holes opened on the inner wall of the fixed frame, thereby allowing coolant to flow into the auxiliary frame. After the coolant is passed into the auxiliary frame, the rotating roller in the positioning groove inside the auxiliary frame is rotated by the drive of the micro motor. A number of brushes are provided on the circumferential surface of the rotating roller, and the brushes cooperate with the coolant to brush and clean the metal particles attached to the surface of the frosting block. At the same time, the coolant will also flow into the brush plate along the fixed hole, causing the brush plate to clean the upper surface of the frosting block.

[0016] Preferably, a positioning frame is fixedly connected to one side of the side plate, a second hydraulic cylinder is fixedly connected to the upper surface of the positioning frame, an output end of the second hydraulic cylinder is fixedly connected to a limiting frame, and hook blocks are fixedly connected to both ends of the limiting frame.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The rotary grinding equipment for gear processing described in the present invention can grind the side and bottom surfaces of the gear ring teeth at the same time through the cooperation of the grinding block and the auxiliary components, thereby improving the grinding efficiency and reducing the processing time. The setting of the collection tank and the baffle effectively collects the coolant and metal debris, avoids environmental pollution, and is convenient for the subsequent centralized treatment of waste materials, reducing the cleaning cost. The overall structure is compact and the operation is relatively simple. It can ensure the quality and precision of the gear ring grinding, meet the needs of production and processing, is suitable for batch gear ring grinding operations, and has certain practicality and economy.

[0019] 2. The rotary grinding equipment for gear processing described in the present invention realizes a precise triggering mechanism through the cooperation of the pressure sensor and the abutment plate. When the sanding block grinds to the middle position, the electric push rod is automatically started, avoiding the error of manual operation and improving the degree of automation and accuracy of grinding. The electric push rod drives the connecting rod and the connecting plate to move, and then pulls the roller to move and rotate, so that the roller can automatically grind the bottom surface of the gear ring teeth, and perform the grinding of the inner wall of the teeth by the sanding block synchronously, thereby improving the grinding efficiency. This collaborative working mode ensures that all surfaces of the gear ring teeth can be fully and evenly polished, effectively improving the grinding quality of the gear ring and meeting the requirements of high-precision processing.

[0020] 3. The rotary grinding equipment for gear processing described in the present invention uses high-pressure coolant to impact the insert plate to make it slide and insert into the auxiliary hole, thereby achieving precise positioning. After the positioning hole and the connecting hole are aligned, the coolant can be smoothly introduced into the auxiliary frame, ensuring the accuracy and stability of the coolant delivery. The rotating roller rotates under the drive of a micro motor, and the brush on its surface can effectively brush off the metal particles attached to the surface of the grinding block with the coolant, thereby preventing the metal particles from affecting the grinding accuracy and the service life of the grinding block. At the same time, the coolant flows into the brush plate to clean the upper surface of the grinding block, further improving the cleaning effect. This design realizes comprehensive and efficient cleaning of the grinding block, helps to maintain the stability and processing quality of the grinding work, and reduces equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of embodiment 1 of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the grinding assembly of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the connection relationship between the sanding block and the first hydraulic cylinder of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the auxiliary components of the present invention;

[0026] Figure 5 This invention Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 Schematic diagram of the structure of the control component of the present invention;

[0028] Figure 7 Schematic diagram of the split structure of the regulatory component of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the replacement assembly of the present invention;

[0030] In the figure: 1. body;

[0031] 2. Side plate; 21. Three-jaw chuck;

[0032] 3. Fixed table; 31. Motor; 32. Sliding groove; 33. Sliding block; 34. Sliding frame; 35. Rotating block; 36. First hydraulic cylinder; 37. Sanding block; 38. Fixed block; 39. Nozzle; 310. Electric push rod; 311. Connecting rod; 312. Auxiliary plate; 313. Pressure sensor; 314. Connecting plate; 315. Roller; 316. Fixed groove; 317. Fixed teeth; 318. Connecting block; 319. Fixed gear; 320. Fixed rod; 321. Fixed frame; 322. Limiting groove; 323. Brush block; 324. Connecting hole; 325. Fixed hole; 326. Auxiliary hole; 327. Telescopic rod; 328. Compression spring; 329. Insert plate; 330. Positioning hole; 331. Auxiliary frame; 332. Positioning groove; 333. Rotating roller;

[0033] 4. Positioning frame; 41. Second hydraulic cylinder; 42. Limiting frame; 43. Hook block;

[0034] 5. Collection tank; 51. Baffle;

[0035] 6. Gear ring. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] Example 1: Figures 1 to 8 As shown, a rotary grinding device for gear processing described in an embodiment of the present invention includes a body, a side plate fixedly connected to the upper surface of the body, a three-jaw chuck is provided on one side of the side plate, and a gear ring is clamped on the three-jaw chuck, a fixed table is fixed to the upper surface of the body, and a grinding assembly is provided on one side of the fixed table. The grinding assembly includes a grinding block slidably connected to one side of the fixed table, a collection groove for collecting coolant and metal debris is provided on the upper surface of the body, and baffles are rotatably connected on both sides of the collection groove, the cross-section of the grinding block is an isosceles trapezoid, and its cross-section is the same as the cross-section between the two teeth of the gear ring, and auxiliary components are provided on both sides of the grinding block, the auxiliary component includes a fixed groove opened on the side wall of the grinding block, and a roller is slidably connected in the fixed groove, and the roller can grind the bottom surface of the teeth.

[0038] Specifically, during the use of existing gear grinding devices, there are obvious grinding limitations. Since the cross-sectional shape between the two teeth of the gear is similar to an isosceles trapezoid, the inner wall space is relatively narrow and has a certain inclination angle. However, in existing grinding mechanisms, the grinding parts are mostly designed to be cylindrical. When such cylindrical grinding parts enter the tooth gap, the contact area with the inner wall is limited and they cannot fit tightly against the inclined surface of the inner wall. During the grinding process, it is difficult for the cylindrical parts to penetrate into every corner of the tooth gap, resulting in insufficient grinding of the inner wall between the two teeth, which may leave burrs, unevenness and other problems, thereby affecting the transmission accuracy and service life of the gear, making it difficult to meet the grinding requirements of high-precision gears.

[0039] Therefore, the present invention sets a corresponding structure to solve the above problem. First, the gear ring is clamped on the three-jaw chuck to achieve fixation. After startup, the grinding assembly works, and the grinding block slides on one side of the fixed platform. Since its cross-section is an isosceles trapezoid and is the same as the cross-section between the two teeth of the gear ring, the side surfaces of the teeth can be ground during the sliding process. At the same time, the roller in the auxiliary assembly slides in the fixed groove on the side wall of the grinding block, contacts the bottom surface of the teeth, and grinds the bottom surface of the teeth to ensure that all surfaces of the teeth can be fully processed. During the grinding process, coolant is used to reduce the temperature and metal debris is generated. The collection tank opened on the upper surface of the machine body is used to collect coolant and metal debris. The baffles on both sides of the collection tank can prevent the coolant and debris from splashing, play a certain blocking role, and ensure a clean working environment.

[0040] Through the cooperation of the grinding block and the auxiliary components, the side and bottom surfaces of the gear ring teeth can be polished at the same time, which improves the polishing efficiency and reduces the processing time. The setting of the collection tank and the baffle effectively collects the coolant and metal debris, avoids environmental pollution, and facilitates the subsequent centralized treatment of waste materials, reducing the cleaning cost. The overall structure is compact and the operation is relatively simple. It can ensure the quality and precision of the gear ring polishing, meet the needs of production and processing, is suitable for batch gear ring polishing operations, and has certain practicality and economy.

[0041] like Figures 2 to 5As shown, in this embodiment, a sliding groove is provided on one side of the fixed table, and a sliding block is slidably connected to the circumferential surface of the screw rod in the sliding groove, and the screw rod is fixedly connected to the output end of the motor on the upper surface of the fixed table, and a sliding frame is fixedly connected to one side of the sliding block, and a rotating block is rotatably connected to one side of the sliding frame, and a first hydraulic cylinder is fixedly connected to one side of the rotating block, and the output end of the first hydraulic cylinder is fixedly connected to the frosting block. Fixed grooves are provided on both sides of the frosting block, and a plurality of fixed teeth are fixedly connected to the inner wall of the fixed groove. A connecting block is slidably connected in the fixed groove, and one side of the connecting block is rotatably connected to a fixed gear, and the fixed gear is fixed to the roller column, and one side of the roller column is rotatably connected to a connecting plate, one end of the connecting plate is fixedly connected to an auxiliary plate, and one side of the auxiliary plate is fixedly connected to a pressure sensor, and the other side of the auxiliary plate is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to the electric push rod on one side of the rotating block.

[0042] Specifically, when the first hydraulic cylinder drives the sanding block to perform reciprocating sanding on the inner wall between the two teeth, when half of the sanding block is aligned with the gear ring, the pressure sensor on one side of the abutment plate abuts against the outer wall of the gear ring, the pressure sensor is triggered, and the electric push rod is started to retract, driving the connecting rod and the connecting plate to move backward. During this process, the connecting plate will pull the roller backward. During the backward movement of the roller, the fixed gear will slide along the fixed groove on the side wall of the sanding block. During the sliding process, the fixed gear rotates along the fixed teeth, thereby driving the roller to rotate and sanding the bottom surface of the gear ring teeth.

[0043] Through the cooperation of the pressure sensor and the abutment plate, a precise trigger mechanism is realized. When the sanding block is ground to the middle position, the electric push rod is automatically started, avoiding the error of manual operation and improving the automation and accuracy of grinding. The electric push rod drives the connecting rod and the connecting plate to move, and then pulls the roller to move and rotate, so that the roller can automatically grind the bottom surface of the gear ring teeth, and grind the inner wall of the teeth synchronously with the sanding block, thereby improving the grinding efficiency. This collaborative working mode ensures that all sides of the gear ring teeth can be fully and evenly polished, effectively improving the grinding quality of the gear ring and meeting the needs of high-precision processing.

[0044] Example 2: Figures 1 to 8As shown, comparative embodiment 1, wherein another embodiment of the present invention is: the upper surface of the rotating block is also fixedly connected to a fixed block, one side of the fixed block is fixedly connected to a nozzle, the nozzle is connected to an external coolant injection device, the nozzle is used to spray coolant on the frosting block, one side of the rotating block is fixedly connected to a fixed rod, one side of the fixed rod is fixedly connected to a fixed frame, a regulating component is provided in the fixed frame, the regulating component includes a plug plate slidably arranged in the fixed frame, the plug plate is used to seal the fixing hole and the connecting hole opened in the fixed frame, a limiting groove is opened in the fixed frame, an auxiliary hole is opened on one side of the limiting groove, a telescopic rod is fixedly connected to the inner wall of the limiting groove, a compression spring is sleeved on the circumferential surface of the telescopic rod, one end of the telescopic rod and the compression spring is fixedly connected to the same plug plate, the plug plate is plugged into the auxiliary hole, and auxiliary frames are fixedly connected to both sides of the fixed frame, a rotating roller driven by a micro motor is rotatably connected in the positioning groove of the auxiliary frame, a positioning hole with the same cross-section as the connecting hole is opened on the surface of the plug plate, a brush block is fixed to the bottom surface of the fixed frame, and the brush block is connected to the fixing hole opened in the fixed frame.

[0045] Specifically, when high-pressure coolant is ejected from the nozzle, the coolant of the high-pressure fluid will impact the plug-in plate, causing the plug-in plate to slide along the inner wall of the fixed frame and thus be inserted into the auxiliary hole. During the sliding process, the compression spring and the telescopic rod will be pulled to move. After the plug-in plate slides, the positioning holes on both sides thereof will be aligned with the connection holes opened on the inner wall of the fixed frame, thereby allowing the coolant to flow into the auxiliary frame. After the coolant flows into the auxiliary frame, the rotating roller in the positioning groove inside the auxiliary frame is rotated by the drive of the micro motor. A plurality of brushes are provided on the circumferential surface of the rotating roller. The brushes cooperate with the coolant to brush and clean the metal particles attached to the surface of the grinding block. At the same time, the coolant will also flow into the brush plate along the fixed hole, causing the brush plate to clean the upper surface of the grinding block.

[0046] High-pressure coolant is used to impact the insert plate, causing it to slide and insert into the auxiliary hole to achieve precise positioning. After the positioning hole is aligned with the connecting hole, the coolant can be smoothly introduced into the auxiliary frame, ensuring the accuracy and stability of coolant delivery. The rotating roller is driven by a micro motor to rotate, and the brush on its surface can cooperate with the coolant to effectively brush off the metal particles attached to the surface of the sanding block, preventing the metal particles from affecting the grinding accuracy and the service life of the sanding block. At the same time, the coolant flows into the brush plate to clean the upper surface of the sanding block, further improving the cleaning effect. This design realizes comprehensive and efficient cleaning of the sanding block, helps maintain the stability and processing quality of the grinding work, and reduces equipment maintenance costs.

[0047] like Figure 4 As shown, a positioning frame is fixedly connected to one side of the side plate of this embodiment, a second hydraulic cylinder is fixedly connected to the upper surface of the positioning frame, an output end of the second hydraulic cylinder is fixedly connected to a limiting frame, and hook blocks are fixedly connected to both ends of the limiting frame.

[0048] Specifically, after the gear ring is polished, the second hydraulic cylinder is started. After the second hydraulic cylinder is started, it will push the limit frame and the hook blocks at both ends to be inserted between the teeth on both sides of the gear, and then the three-jaw chuck will be contracted to remove the gear ring, thereby achieving the effect of automatically replacing the gear ring and improving the processing efficiency.

[0049] Working principle: first, clamp the gear ring on the three-jaw chuck to fix it. After starting, the grinding assembly will work, and the grinding block will slide on one side of the fixed table. Since its cross-section is an isosceles trapezoid and the same as the cross-section between the two teeth of the gear ring, the side of the tooth can be ground during the sliding process. At the same time, the roller in the auxiliary assembly slides in the fixed groove on the side wall of the grinding block, contacts the bottom surface of the tooth, and grinds the bottom surface of the tooth to ensure that all sides of the tooth can be fully processed. During the grinding process, coolant will be used to reduce the temperature and generate metal debris. The collection tank on the upper surface of the machine body is used to collect coolant and metal debris. The baffles on both sides of the collection tank can prevent coolant and debris from splashing, play a certain blocking role, and ensure a clean working environment.

[0050] Through the cooperation of the grinding block and the auxiliary components, the side and bottom surfaces of the gear ring teeth can be polished at the same time, which improves the polishing efficiency and reduces the processing time. The setting of the collection tank and the baffle effectively collects the coolant and metal debris, avoids environmental pollution, and facilitates the subsequent centralized treatment of waste materials, reducing the cleaning cost. The overall structure is compact and the operation is relatively simple. It can ensure the quality and precision of the gear ring polishing, meet the needs of production and processing, and is suitable for batch gear ring polishing operations. It has certain practicality and economy.

[0051] Specifically, when the first hydraulic cylinder drives the sanding block to perform reciprocating sanding on the inner wall between the two teeth, when half of the sanding block is aligned with the gear ring, the pressure sensor on one side of the abutment plate abuts against the outer wall of the gear ring, the pressure sensor is triggered, and the electric push rod is started to retract, driving the connecting rod and the connecting plate to move backward. During this process, the connecting plate will pull the roller backward. During the backward movement of the roller, the fixed gear will slide along the fixed groove on the side wall of the sanding block. During the sliding process, the fixed gear rotates along the fixed teeth, thereby driving the roller to rotate and sanding the bottom surface of the gear ring teeth.

[0052] The cooperation between the pressure sensor and the abutment plate realizes a precise trigger mechanism. When the sanding block reaches the middle position, the electric push rod is automatically activated, avoiding the error of manual operation and improving the automation and accuracy of sanding. The electric push rod drives the connecting rod and the connecting plate to move, and then pulls the roller to move and rotate, so that the roller can automatically sand the bottom surface of the gear ring teeth, which is synchronized with the sanding block sanding the inner wall of the teeth, improving the sanding efficiency. This collaborative working mode ensures that all surfaces of the gear ring teeth can be fully and evenly sanded, effectively improving the sanding quality of the gear ring and meeting the requirements of high-precision machining.

[0053] In addition, when high-pressure coolant is sprayed out of the nozzle, the coolant of the high-pressure fluid will impact the plug-in plate, causing the plug-in plate to slide along the inner wall of the fixed frame and thus be inserted into the auxiliary hole. During the sliding process, the compression spring and the telescopic rod will be pulled to move. After the plug-in plate slides, the positioning holes on both sides thereof will be aligned with the connection holes opened on the inner wall of the fixed frame, thereby allowing the coolant to flow into the auxiliary frame. After the coolant flows into the auxiliary frame, the rotating roller in the positioning groove inside the auxiliary frame is rotated by the drive of the micro motor. A plurality of brushes are provided on the circumferential surface of the rotating roller. The brushes cooperate with the coolant to brush and clean the metal particles attached to the surface of the frosting block. At the same time, the coolant will also flow into the brush plate along the fixed hole, causing the brush plate to clean the upper surface of the frosting block.

[0054] High-pressure coolant is used to impact the insert plate, causing it to slide and insert into the auxiliary hole to achieve precise positioning. After the positioning hole is aligned with the connecting hole, the coolant can be smoothly introduced into the auxiliary frame, ensuring the accuracy and stability of coolant delivery. The rotating roller is driven by a micro motor to rotate, and the brush on its surface can cooperate with the coolant to effectively brush off the metal particles attached to the surface of the sanding block, preventing the metal particles from affecting the grinding accuracy and the service life of the sanding block. At the same time, the coolant flows into the brush plate to clean the upper surface of the sanding block, further improving the cleaning effect. This design realizes comprehensive and efficient cleaning of the sanding block, helps maintain the stability and processing quality of the grinding work, and reduces equipment maintenance costs.

[0055] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary grinding device for gear processing, comprising a body (1), a side plate (2) fixedly connected to the upper surface of the body (1), a three-jaw chuck (21) provided on one side of the side plate (2), a gear ring (6) being clamped to the three-jaw chuck (21), a fixed table (3) fixedly connected to the upper surface of the body (1), a grinding assembly provided on one side of the fixed table (3), the grinding assembly comprising a grinding block (37) slidably connected to one side of the fixed table (3), a collection tank (5) for collecting coolant and metal debris provided on the upper surface of the body (1), and baffles (51) rotatably connected to both sides of the collection tank (5), characterized in that: The cross section of the grinding block (37) is an isosceles trapezoid, and its cross section is the same as the cross section between two teeth of the gear ring (6). Auxiliary components are provided on both sides of the grinding block (37), and the auxiliary components include a fixed groove (316) provided on the side wall of the grinding block (37). A roller (315) is slidably connected in the fixed groove (316), and the roller (315) can grind the bottom surface of the teeth.

2. The rotary grinding device for gear processing according to claim 1, characterized in that: A sliding groove (32) is provided on one side of the fixed platform (3), a sliding block (33) is slidably connected to the circumferential surface of the screw rod in the sliding groove (32), the screw rod is fixedly connected to the output end of the motor (31) on the upper surface of the fixed platform (3), a sliding frame (34) is fixedly connected to one side of the sliding block (33), a rotating block (35) is rotatably connected to one side of the sliding frame (34), a first hydraulic cylinder (36) is fixedly connected to one side of the rotating block (35), and the output end of the first hydraulic cylinder (36) is fixedly connected to the grinding block (37).

3. The rotary grinding device for gear processing according to claim 1, characterized in that: Both sides of the grinding block (37) are provided with fixed grooves (316), the inner wall of the fixed groove (316) is fixedly connected to a plurality of fixed teeth (317), a connecting block (318) is slidably connected in the fixed groove (316), one side of the connecting block (318) is rotatably connected to a fixed gear (319), the fixed gear (319) is fixedly connected to the roller (315), one side of the roller (315) is rotatably connected to a connecting plate (314), one end of the connecting plate (314) is fixedly connected to an auxiliary plate (312), one side of the auxiliary plate (312) is fixedly connected to a pressure sensor (313), the other side of the auxiliary plate (312) is fixedly connected to a connecting rod (311), one end of the connecting rod (311) is fixedly connected to an electric push rod (310) on one side of the rotating block (35).

4. The rotary grinding device for gear processing according to claim 3, characterized in that: When the first hydraulic cylinder (36) drives the grinding block (37) to perform reciprocating grinding on the inner wall between the two teeth, when half of the grinding block (37) is aligned with the gear ring (6), the pressure sensor (313) on the side of the plate abuts against the outer wall of the gear ring (6), the pressure sensor (313) is triggered, and the electric push rod (310) is started to retract, driving the connecting rod (311) and the connecting plate (314) to move backward. During this process, the connecting plate (314) pulls the roller (315) to move backward. During the backward movement of the roller (315), the fixed gear (319) slides along the fixed groove (316) on the side wall of the grinding block (37). During the sliding process, the fixed gear (319) rotates along the fixed tooth (317), thereby driving the roller (315) to rotate, and grinding the bottom surface of the tooth of the gear ring (6).

5. The rotary grinding device for gear processing according to claim 2, characterized in that: A fixed block (38) is also fixedly connected to the upper surface of the rotating block (35), and a nozzle (39) is fixedly connected to one side of the fixed block (38). The nozzle (39) is connected to an external coolant injection device, and the nozzle (39) is used to spray coolant on the frosting block (37).

6. The rotary grinding device for gear processing according to claim 5, characterized in that: A fixing rod (320) is fixedly connected to one side of the rotating block (35), and a fixing frame (321) is fixedly connected to one side of the fixing rod (320). A regulating assembly is provided in the fixing frame (321), and the regulating assembly includes an inserting plate (329) slidably provided in the fixing frame (321). The inserting plate (329) is used to seal the fixing hole (325) and the connecting hole (324) provided in the fixing frame (321).

7. The rotary grinding device for gear processing according to claim 6, characterized in that: A limiting groove (322) is provided in the fixed frame (321), an auxiliary hole (326) is provided on one side of the limiting groove (322), a telescopic rod (327) is fixedly connected to the inner wall of the limiting groove (322), a compression spring (328) is sleeved on the circumferential surface of the telescopic rod (327), one end of the telescopic rod (327) and the compression spring (328) are fixedly connected to the same plug plate (329), the plug plate (329) is plugged into the auxiliary hole (326), and auxiliary frames (331) are fixedly connected to both sides of the fixed frame (321), a rotating roller (333) driven by a micro motor is rotatably connected in the positioning groove (332) of the auxiliary frame (331), and a positioning hole (330) having the same cross-section as the connecting hole (324) is provided on the surface of the plug plate (329).

8. The rotary grinding device for gear processing according to claim 7, characterized in that: A brush block (323) is fixedly connected to the bottom surface of the fixed frame (321), and the brush block (323) is communicated with a fixing hole (325) provided in the fixed frame (321).

9. The rotary grinding device for gear processing according to claim 8, characterized in that: When the high-pressure coolant is ejected from the nozzle (39), the high-pressure coolant will impact the insert plate (329), causing the insert plate (329) to slide along the inner wall of the fixed frame (321) and insert into the auxiliary hole (326). During the sliding process, the compression spring (328) and the telescopic rod (327) are pulled to move. After the sliding insert plate (329), the positioning holes (330) on both sides thereof are aligned with the connection holes (324) opened on the inner wall of the fixed frame (321), thereby moving toward the auxiliary frame (33 1) Cooling liquid is introduced into the auxiliary frame (331). After the cooling liquid is introduced into the auxiliary frame (331), the rotating roller (333) in the internal positioning groove (332) of the auxiliary frame (331) is rotated by the drive of the micro motor. A plurality of brushes are provided on the circumferential surface of the rotating roller (333). The brushes cooperate with the cooling liquid to brush and clean the metal particles attached to the surface of the grinding block (37). At the same time, the cooling liquid also flows into the brush plate along the fixed hole (325), so that the brush plate cleans the upper surface of the grinding block (37).

10. The rotary grinding device for gear processing according to claim 1, characterized in that: A replacement assembly is provided on one side of the side plate (2), and the replacement assembly includes a positioning frame (4) fixedly connected to the upper surface of the side plate (2), a second hydraulic cylinder (41) fixedly connected to the upper surface of the positioning frame (4), an output end of the second hydraulic cylinder (41) fixedly connected to a limiting frame (42), and hook blocks (43) fixedly connected to both ends of the limiting frame (42).

Citation Information

Patent Citations

  • Rotary grinding device for gear machining

    CN117983900A

  • machine for finishing gears

    CH460491A

  • Gear tooth surface grinding mechanism

    CN107695459A