Intelligent numerical control grinding equipment

Abstract

The invention belongs to the technical field of grinding machining, and discloses intelligent numerical control grinding equipment which comprises a grinding rack assembly and an annular workpiece, and the top of the grinding rack assembly is provided with a position correcting and fixing assembly for conducting position correcting and clamping on the annular workpiece. A universal grinding arm assembly used for carrying out annular moving, abutting and grinding on the outer walls of the annular workpieces with different diameters is arranged at the bottom of the rack, and a multi-direction grinding arm assembly used for carrying out annular moving, abutting and grinding on the outer walls of the annular workpieces up and down is arranged on the universal grinding arm assembly. When the cam rotates, the grinding wheel can vertically grind the outer wall of the annular workpiece, meanwhile, when the universal grinding arm assembly rotates, the grinding wheel can be driven to conduct annular grinding on the outer wall of the annular workpiece, and the grinding quality of the outer wall of the annular workpiece is guaranteed through two-way grinding superposition of the vertical grinding action and the annular grinding.

Description

Technical Field

[0001] This invention belongs to the field of grinding technology, specifically relating to an intelligent CNC grinding equipment. Background Technology

[0002] In the field of machining, grinding ring-shaped workpieces is a common but technically demanding process. Ring-shaped workpieces are widely used in key mechanical components such as bearings, gears, and flanges, and the machining quality of their outer walls directly affects the assembly accuracy and performance of the workpiece. Traditional grinding equipment typically employs fixed clamping and unidirectional grinding methods, which presents the following technical problems: Poor clamping adaptability: When clamping ring-shaped workpieces of different diameters, traditional equipment requires frequent changes of clamps or adjustment of clamping mechanisms. This is not only cumbersome to operate, but also prone to workpiece deformation or positioning deviation due to uneven clamping force, which affects the machining accuracy.

[0003] Limited grinding methods: Existing equipment mostly uses a single circular grinding or linear grinding method, which makes it difficult to achieve multi-directional composite grinding, resulting in uneven surface roughness of the workpiece, especially in scenarios with complex curved surfaces or high precision requirements.

[0004] Low level of automation: Most equipment relies on manual adjustment of grinding parameters (such as feed rate and grinding pressure), which makes it difficult to adapt to the needs of intelligent production, resulting in low efficiency and difficulty in ensuring consistency.

[0005] Insufficient elasticity compensation: During the grinding process, the contact pressure between the grinding wheel and the workpiece lacks a dynamic adjustment mechanism, which can easily lead to grinding overload or under-grinding due to workpiece dimensional tolerances or clamping errors, affecting the quality of the finished product.

[0006] While existing technologies offer some improvements to address the aforementioned issues, such as employing hydraulically clamped or servo-driven grinding heads, they still suffer from drawbacks such as complex structures, high costs, or insufficient flexibility. Therefore, there is an urgent need for a CNC grinding machine capable of automatically adapting to workpieces of different diameters, achieving multi-directional composite grinding, and possessing intelligent adjustment functions to meet the demands for high-precision and high-efficiency machining. Summary of the Invention

[0007] To address the problems mentioned in the background section, this invention provides an intelligent CNC grinding machine that is easy to use.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an intelligent CNC grinding equipment, comprising a grinding frame assembly and a ring-shaped workpiece, wherein the top of the grinding frame assembly is provided with a positioning and fixing assembly for positioning and clamping the ring-shaped workpiece, and the bottom of the frame is provided with a universal grinding arm assembly for performing circumferential contact grinding on the outer wall of ring-shaped workpieces of different diameters, wherein the universal grinding arm assembly is provided with a multi-directional grinding arm assembly for performing circumferential grinding and vertical grinding on the outer wall of the ring-shaped workpiece.

[0009] In a preferred embodiment of an intelligent CNC grinding equipment, the grinding frame assembly includes a frame, a fixed plate is fixedly installed at the bottom of the frame, a first drive motor is fixedly installed at the bottom of the fixed plate, mounting bases are fixedly installed on both sides of the frame, support arm top plates are fixedly installed on both sides of the top of the frame, and a transverse sliding groove is provided on the frame body at the top of the frame.

[0010] In a preferred embodiment of an intelligent CNC grinding equipment, the positioning and fixing component includes a double-threaded screw, both ends of which are threaded with a drive base, and a second drive motor is provided at one end of the double-threaded screw. A sliding arm block is fixedly provided at the bottom of the drive base, and an arc-shaped contact plate is fixedly provided at the bottom of the sliding arm block.

[0011] In a preferred embodiment of an intelligent CNC grinding equipment, the universal grinding arm assembly includes an auxiliary table and a sliding seat. An auxiliary shaft is fixedly installed at the bottom of the auxiliary table, and an auxiliary cross arm is fixedly installed on one side of the auxiliary table. The auxiliary cross arm has a guide rail groove and a guide rail side groove. A support plate is fixedly installed at the bottom of the sliding seat, and a third drive motor is fixedly installed at the bottom of the support plate. A cam is installed on the output shaft of the third drive motor. A through sliding hole is opened at the center of the sliding seat, and guide rail sliders are fixedly installed on both sides of the sliding seat. A contact spring is fixedly installed at one end of the sliding seat.

[0012] In a preferred embodiment of an intelligent CNC grinding equipment, the multi-directional grinding arm assembly includes a grinding arm slide rod, a fourth drive motor is fixedly installed at one end of the grinding arm slide rod, and an abutting arc plate is fixedly installed at the other end of the grinding arm slide rod. A tightening spring is sleeved on the rod body of the grinding arm slide rod near the abutting arc plate, and a grinding wheel is installed on the output shaft of the fourth drive motor.

[0013] In a preferred embodiment of an intelligent CNC grinding equipment, the abutting sliding seat slides within the guide rail groove, and the two ends of the abutting spring are respectively fixed in the grooves of the abutting sliding seat and one end of the guide rail groove. Through the pressing of the abutting spring, the abutting sliding seat slides towards the auxiliary table, and the auxiliary shaft is connected to the output shaft of the first drive motor.

[0014] In a preferred embodiment of an intelligent CNC grinding equipment, the grinding arm slide bar slides up and down within a through-hole, the fourth drive motor is located above the contact sliding seat, and the clamping spring and the contact arc plate are located below the contact sliding seat. The clamping spring clamps the contact arc plate, and the contact arc plate abuts against the cam.

[0015] In a preferred embodiment of an intelligent CNC grinding equipment, the guide rail slider slides within the guide rail side groove, and the grinding wheel on the multi-directional grinding arm assembly abuts against the outer wall of the annular workpiece by the pressing of the contact spring.

[0016] In a preferred embodiment of an intelligent CNC grinding equipment, the double-threaded screw is rotatably disposed between two support arm top plates, the sliding arm block slides in the transverse sliding groove, the arc-shaped contact plates on the two drive seats abut against the inner wall of the annular workpiece, and the second drive motor is fixed to the outer wall of one support arm top plate.

[0017] In a preferred embodiment of an intelligent CNC grinding equipment, the frame is fixed to a reserved machine position by a mounting base and fastening bolts.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses the rotation of a double-threaded screw to drive two drive seats to extend outward synchronously. During the extension process, two arc-shaped contact plates abut against the inner wall of the annular workpiece to achieve centering and clamping of the annular workpiece. In this way, on the one hand, it is convenient to fix the annular workpieces of different diameters, and on the other hand, it can quickly clamp and disassemble the annular workpiece for grinding.

[0019] 2. When the universal grinding arm assembly of the present invention rotates, the contact spring presses against the contact sliding seat. At this time, the contact sliding seat slides inward on the guide rail groove. At this time, the grinding wheel on the multi-directional grinding arm assembly will automatically and elastically contact the annular workpiece. In this way, the grinding needs of the outer wall of annular workpieces of different diameters can be met.

[0020] 3. In this invention, the clamping spring presses the abutting arc plate against the cam. When the cam rotates, the grinding wheel at the top of the grinding arm slide rod will form an up-and-down grinding action on the abutting sliding seat. In this way, the grinding wheel can perform up-and-down grinding action on the outer wall of the annular workpiece. At the same time, when the universal grinding arm assembly rotates, it will also drive the grinding wheel to perform circumferential grinding on the outer wall of the annular workpiece. Through the bidirectional grinding of up-and-down grinding action and circumferential grinding, the grinding quality of the outer wall of the annular workpiece is guaranteed. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a perspective view of the grinding machine frame assembly of the present invention; Figure 4 This is a perspective view of the universal grinding arm assembly and the multi-directional grinding arm assembly of the present invention; Figure 5 This is a perspective view of the universal grinding arm assembly of the present invention; Figure 6 This is a perspective view of the multi-directional grinding arm assembly of the present invention.

[0022] In the diagram: 100, Grinding machine frame assembly; 101, Frame; 102, First drive motor; 103, Fixed plate; 104, Second drive motor; 105, Annular workpiece; 106, Arc-shaped contact plate; 107, Drive base; 108, Sliding arm block; 109, Double threaded screw; 110, Support arm top plate; 111, Horizontal slide groove; 112, Mounting base; 200, Universal grinding arm assembly; 201, Auxiliary table; 202, Auxiliary shaft; 203. Guide rail groove; 204. Auxiliary cross arm; 205. Through-hole; 206. Abutting slide seat; 207. Abutting spring; 208. Third drive motor; 209. Cam; 210. Support plate; 211. Guide rail slider; 212. Guide rail side groove; 300. Multi-directional grinding arm assembly; 301. Tightening spring; 302. Abutting arc plate; 303. Grinding arm slide bar; 304. Fourth drive motor; 305. Grinding wheel. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-6 As shown, the present invention provides an intelligent CNC grinding equipment, including a grinding frame assembly 100 and an annular workpiece 105. The top of the grinding frame assembly 100 is provided with a positioning and fixing assembly for positioning and clamping the annular workpiece 105, and the bottom of the frame 101 is provided with a universal grinding arm assembly 200 for performing circumferential contact grinding on the outer wall of the annular workpiece 105 of different diameters. The universal grinding arm assembly 200 is provided with a multi-directional grinding arm assembly 300 for performing circumferential grinding and vertical grinding on the outer wall of the annular workpiece 105.

[0025] In a preferred embodiment, please refer to Figure 3 The grinding machine frame assembly 100 includes a frame 101, a fixed plate 103 is fixedly installed at the bottom of the frame 101, a first drive motor 102 is fixedly installed at the bottom of the fixed plate 103, mounting bases 112 are fixedly installed on both sides of the frame 101, and support arm top plates 110 are fixedly installed on both sides of the top of the frame 101. A transverse sliding groove 111 is provided on the frame at the top of the frame 101.

[0026] In a preferred embodiment, please refer to Figure 3The positioning and fixing assembly includes a double-threaded screw 109, with a drive base 107 threaded at both ends of the double-threaded screw 109, and a second drive motor 104 at one end of the double-threaded screw 109. A sliding arm block 108 is fixedly installed at the bottom of the drive base 107, and an arc-shaped contact plate 106 is fixedly installed at the bottom of the sliding arm block 108.

[0027] In this embodiment, the double threaded screw 109 is rotatably disposed between the two support arm top plates 110, the sliding arm block 108 slides in the transverse sliding groove 111, the arc-shaped contact plates 106 on the two drive seats 107 abut against the inner wall of the annular workpiece 105, the second drive motor 104 is fixed on the outer wall of one support arm top plate 110, and the frame 101 is fixed to the reserved machine position by the mounting base 112 and fastening bolts.

[0028] In a preferred embodiment, please refer to Figure 5 The general-purpose grinding arm assembly 200 includes an auxiliary table 201 and a contact sliding seat 206. An auxiliary shaft 202 is fixedly installed at the bottom of the auxiliary table 201, and an auxiliary cross arm 204 is fixedly installed on one side of the auxiliary table 201. The auxiliary cross arm 204 has a guide rail groove 203 and a guide rail side groove 212. A support plate 210 is fixedly installed at the bottom of the contact sliding seat 206. A third drive motor 208 is fixedly installed at the bottom of the support plate 210. A cam 209 is installed on the output shaft of the third drive motor 208. A through sliding hole 205 is opened at the center of the contact sliding seat 206, and guide rail sliders 211 are fixedly installed on both sides of the contact sliding seat 206. A contact spring 207 is fixedly installed at one end of the contact sliding seat 206.

[0029] In this embodiment, the abutting slide seat 206 slides in the guide rail groove 203, and the two ends of the abutting spring 207 are respectively fixed in the groove of the abutting slide seat 206 and the groove of the guide rail groove 203. By the pressing of the abutting spring 207, the abutting slide seat 206 slides against the auxiliary platform 201. The auxiliary shaft 202 is connected to the output shaft of the first drive motor 102.

[0030] In this embodiment, the guide rail slider 211 slides in the guide rail side groove 212, and the grinding wheel 305 on the multi-directional grinding arm assembly 300 abuts against the outer wall of the annular workpiece 105 by the pressing of the abutment spring 207.

[0031] In a preferred embodiment, please refer to Figure 6 The multi-directional grinding arm assembly 300 includes a grinding arm slide 303. A fourth drive motor 304 is fixedly installed at one end of the grinding arm slide 303, and an abutting arc plate 302 is fixedly installed at the other end of the grinding arm slide 303. A tightening spring 301 is sleeved on the rod body of the grinding arm slide 303 near the abutting arc plate 302. A grinding wheel 305 is installed on the output shaft of the fourth drive motor 304.

[0032] In this embodiment, the grinding arm slide bar 303 slides up and down in the through slide hole 205, the fourth drive motor 304 is located above the abutting slide seat 206, and the pressing spring 301 and the abutting arc plate 302 are located below the abutting slide seat 206. The pressing spring 301 presses against the abutting arc plate 302, and the abutting arc plate 302 abuts against the cam 209.

[0033] The working principle of this invention is as follows: The invention utilizes a second drive motor 104 to drive a double-threaded screw 109 to rotate. The rotation of the double-threaded screw 109 causes two drive seats 107 to extend outwards synchronously. During this extension, two arc-shaped contact plates 106 abut against the inner wall of the annular workpiece 105, achieving a centering and clamping fixation of the annular workpiece 105. This method facilitates the positioning and fixation of annular workpieces 105 of different diameters and allows for quick grinding and loosening of the annular workpiece 105. Furthermore, when it is necessary to loosen the fixation of the annular workpiece 105, the second drive motor 104 simply needs to rotate in the opposite direction.

[0034] Based on the above, after the annular workpiece 105 is fixed, the universal grinding arm assembly 200 is driven to rotate by the first drive motor 102. When the universal grinding arm assembly 200 rotates, the auxiliary cross arm 204 will rotate around the annular workpiece 105. At this time, the multi-directional grinding arm assembly 300 on the contact sliding seat 206 will grind around the outer wall of the annular workpiece 105. During this process, the contact spring 207 presses against the contact sliding seat 206, and the contact sliding seat 206 slides inward on the guide rail groove 203. At this time, the grinding wheel 305 on the multi-directional grinding arm assembly 300 will automatically and elastically contact the annular workpiece 105. In this way, the grinding requirements of the outer wall of annular workpieces 105 with different diameters can be met. At the same time, through this contact method, it can be ensured that the grinding wheel 305 automatically contacts the outer wall of annular workpieces 105 with different diameters, thereby ensuring the grinding quality of the outer wall of the annular workpiece 105.

[0035] Based on the above, the present invention provides a grinding arm slide bar 303 on the contact sliding seat 206. At this time, the grinding arm slide bar 303 slides up and down within the through sliding hole 205. The fourth drive motor 304 is located above the contact sliding seat 206, and the clamping spring 301 and the contact arc plate 302 are located below the contact sliding seat 206. The clamping spring 301 clamps the contact arc plate 302, causing the contact arc plate 302 to abut against the cam 209. In actual use, the third drive motor 208 drives the cam 209 to rotate. Because the clamping spring 301 presses the contact arc plate 302 against the cam 209... When the cam 209 rotates, the grinding arm slide 303 moves up and down on the sliding seat 206. At this time, the grinding wheel 305 at the top of the grinding arm slide 303 moves up and down on the sliding seat 206. In this way, the grinding wheel 305 performs up and down grinding on the outer wall of the annular workpiece 105. At the same time, when the universal grinding arm assembly 200 rotates, it also drives the grinding wheel 305 to perform circumferential grinding on the outer wall of the annular workpiece 105. Through the bidirectional grinding of up and down grinding and circumferential grinding, the grinding quality of the outer wall of the annular workpiece 105 is ensured.

[0036] Meanwhile, when the abutment sliding seat 206 slides within the guide rail groove 203, guide rail sliders 211 are provided on both sides of the abutment sliding seat 206, and guide rail side grooves 212 are provided on both sides of the guide rail groove 203. When the abutment sliding seat 206 slides within the guide rail groove 203, the guide rail sliders 211 slide within the guide rail side grooves 212. In this way, the stability of the abutment sliding seat 206 in lateral sliding is ensured. At the same time, when the two drive seats 107 slide on the top of the frame 101, a sliding arm block 108 is fixedly provided at the bottom of the drive seat 107, and a transverse sliding groove 111 is opened on the top of the frame 101. When the drive seat 107 slides on the top of the frame 101, the sliding arm block 108 slides laterally within the transverse sliding groove 111. In this way, the stability of the drive seat 107 in sliding on the top of the frame 101 is ensured.

[0037] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent numerically controlled lathing apparatus comprising a lathing frame assembly (100) and a ring-shaped workpiece (105), characterized in that: The top of the grinding frame assembly (100) is provided with a positioning and fixing assembly for positioning and clamping the annular workpiece (105), and the bottom of the frame (101) is provided with a universal grinding arm assembly (200) for annular dynamic contact grinding of the outer wall of the annular workpiece (105) with different diameters, and the universal grinding arm assembly (200) is provided with a multidirectional grinding arm assembly (300) for annular dynamic grinding and up-down grinding of the outer wall of the annular workpiece (105); The positioning and fixing assembly comprises a double-threaded screw rod (109), both ends of the double-threaded screw rod (109) are threadedly provided with a driving seat (107), one end of the double-threaded screw rod (109) is provided with a second driving motor (104), the bottom of the driving seat (107) is fixedly provided with a sliding arm block (108), and the bottom of the sliding arm block (108) is fixedly provided with an arc-shaped contact plate (106); The universal grinding arm assembly (200) comprises an auxiliary table (201) and a contact sliding seat (206), the bottom of the auxiliary table (201) is fixedly provided with an auxiliary shaft (202), one side of the auxiliary table (201) is fixedly provided with an auxiliary cross arm (204), the auxiliary cross arm (204) is provided with a guide rail sliding groove (203) and a guide rail side sliding groove (212), the bottom of the contact sliding seat (206) is fixedly provided with a supporting plate (210), the bottom of the supporting plate (210) is fixedly provided with a third driving motor (208), the output shaft of the third driving motor (208) is provided with a cam (209), the center of the contact sliding seat (206) is provided with a through sliding hole (205), both sides of the contact sliding seat (206) are fixedly provided with guide rail sliding blocks (211), and one end of the contact sliding seat (206) is fixedly provided with a contact spring (207).

2. The intelligent numerical control lapping apparatus according to claim 1, wherein: The grinding frame assembly (100) comprises a frame (101), the bottom of the frame (101) is fixedly provided with a fixed disc (103), the bottom of the fixed disc (103) is fixedly provided with a first driving motor (102), both sides of the frame (101) are fixedly provided with mounting seats (112), both sides of the top end of the frame (101) are fixedly provided with arm top plates (110), and a horizontal sliding groove (111) is formed in the top end of the frame body.

3. The intelligent numerical control lapping device according to claim 1, wherein: The multidirectional grinding arm assembly (300) comprises a grinding arm sliding rod (303), one end of the grinding arm sliding rod (303) is fixedly provided with a fourth driving motor (304), the other end of the grinding arm sliding rod (303) is fixedly provided with a contact arc-shaped plate (302), a tension spring (301) is sleeved on the rod body of the one end of the grinding arm sliding rod (303) close to the contact arc-shaped plate (302), and the output shaft of the fourth driving motor (304) is provided with a grinding abrasive wheel (305).

4. The intelligent numerical control lapping device according to claim 3, characterized in that: The abutting sliding seat (206) slides in the guide rail sliding groove (203), the abutting spring (207) is fixed at both ends in the slot body at one end of the guide rail sliding groove (203) and the abutting sliding seat (206) respectively, the abutting sliding seat (206) is abutted and slides to the auxiliary table (201) direction through the tightening of the abutting spring (207), and the auxiliary shaft rod (202) is connected with the output shaft of the first driving motor (102).

5. The intelligent numerical control lapping apparatus according to claim 4, wherein: The grinding arm sliding rod (303) slides up and down in the through sliding hole (205), the fourth driving motor (304) is located above the abutting sliding seat (206), the tightening spring (301) and the abutting arc-shaped plate (302) are located below the abutting sliding seat (206), the abutting arc-shaped plate (302) is abutted on the cam (209) through the tightening of the tightening spring (301) on the abutting arc-shaped plate (302).

6. An intelligent numerically controlled lapping apparatus according to claim 5, characterized in that: The guide rail sliding block (211) slides in the guide rail side sliding groove (212), the grinding abrasive wheel (305) on the multi-directional grinding arm assembly (300) is abutted on the outer wall of the annular workpiece (105) through the tightening of the abutting spring (207).

7. An intelligent numerically controlled lapping apparatus according to claim 6, characterized in that: The double-threaded screw rod (109) is rotationally arranged between two support arm top plates (110), the sliding arm block (108) slides in the transverse sliding groove (111), the arc-shaped abutting plate (106) on the two driving seat tables (107) is abutted on the inner wall of the annular workpiece (105), and the second driving motor (104) is fixed on the outer wall of one support arm top plate (110).

8. An intelligent numerically controlled lapping apparatus according to claim 7, characterized in that: The rack (101) is fixed on the reserved machine position through the mounting pedestal (112) and the fastening bolt.

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