Multi-angle mechanical part polishing device

By designing a self-centering four-jaw chuck and synchronous moving components, multi-angle automatic grinding of the cross shaft body is achieved, solving the problem of needing manual position adjustment in existing technologies and improving grinding efficiency and practicality.

CN223961016UActive Publication Date: 2026-03-03XIAN KEDAGAOXIN UNIV
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Patent Information

Application Number
CN202520659963.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-03
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Existing mechanical parts grinding devices can only grind one end face of the cross shaft, requiring manual adjustment of the position to complete grinding at another angle, resulting in low efficiency.

Method used

A multi-angle mechanical parts grinding device was designed, which adopts a self-centering four-jaw chuck, an adjustable grinding mechanism, a rotating mechanism and a synchronous moving component to realize multi-angle automatic grinding of the cross shaft body. The synchronous moving component and the rotating mechanism enable simultaneous grinding of the two shaft end faces of the cross shaft body, and the synchronous rotation drive component maintains the grinding synchronization.

Benefits of technology

It improves grinding efficiency, reduces the workload of manually changing angles, enhances the practicality of the device and the grinding quality, and can adapt to workpieces of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-angle mechanical part polishing device, which belongs to the technical field of mechanical part polishing and comprises a base station, a rotating mechanism is mounted on the front side of the upper end of the base station, and a self-centering four-jaw chuck is mounted on the rotating mechanism; an adjustable grinding mechanism is mounted on the rear side of the upper end of the base table; the adjusting type grinding mechanism comprises two fixing plates, a synchronous moving assembly used for controlling the two fixing plates to move at the same time, and a synchronous rotation driving assembly used for driving the grinding disc to rotate to grind the end face of the shaft head of the cross shaft body. Through the mode, the polishing disc can conduct multi-angle polishing operation on the cross shaft body, the extra workload of manual angle replacement is reduced, through the synchronous moving assembly, the device can polish the two shaft head end faces of the cross shaft body at the same time, the device can adapt to workpieces of different sizes, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical parts grinding technology, specifically to a multi-angle mechanical parts grinding device. Background Technology

[0002] With the development of industrial automation, more and more mechanical parts grinding work is beginning to adopt automated grinding equipment. These devices, through pre-set programs, can automatically complete grinding tasks, greatly improving production efficiency.

[0003] Chinese patent CN215147634U discloses a cross-shaft end face grinding table, including a worktable, a turntable at the upper end of the worktable, a motor at the lower end of the worktable to drive the turntable to rotate, a detachable workpiece holder at the upper end of the turntable, a chip collection box fitted around the outside of the turntable, a support frame at the upper end of the worktable, a grinding disc for grinding the cross-shaft on the support frame, the grinding disc being located above the workpiece holder, a cylinder vertically mounted on the support frame, the grinding disc being connected to the piston rod of the cylinder, a guide cylinder on the support frame, and a guide rod connected to the guide cylinder at the upper end of the grinding disc. However, this device still has the following problems during use:

[0004] This device can only grind one end face of the cross shaft. After grinding, the operator needs to manually adjust the installation position of the cross shaft before grinding the end face of the shaft at another angle can be performed, which is inefficient.

[0005] Based on this, the present invention designs a multi-angle mechanical parts grinding device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a multi-angle mechanical parts grinding device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-angle mechanical parts grinding device includes a base, a self-centering four-jaw chuck, an adjustable grinding mechanism, a grinding disc, a rotating mechanism, and a cross shaft body. A rotating mechanism for controlling the movement of the self-centering four-jaw chuck is mounted on the upper front side of the base. The self-centering four-jaw chuck is mounted on the rotating mechanism and is used to fix the cross shaft body. An adjustable grinding mechanism for controlling the rotation and movement of the rotating mechanism is mounted on the upper rear side of the base. The adjustable grinding mechanism includes two fixed plates, a synchronous moving component for controlling the simultaneous movement of the two fixed plates, and a synchronous rotation drive component for driving the grinding disc to rotate and grind the end face of the cross shaft body. The synchronous moving component is mounted on the upper end of the base, and the two fixed plates are mounted on the synchronous moving component and connected to the synchronous rotation drive component.

[0009] Furthermore, the synchronous movement component includes a synchronous movement drive component, a guide rail, sliding blocks, and a vertical plate. The guide rail is fixedly installed in the upper middle part of the base, and two sliding blocks are slidably connected to the upper end of the guide rail. A fixed plate is fixedly installed on the upper end of the sliding blocks. The vertical plate is fixedly installed on the upper left side of the base, and the vertical plate is connected to the synchronous movement drive component.

[0010] Furthermore, the synchronous motion drive assembly includes a servo motor and a bidirectional lead screw. The servo motor is fixedly mounted on the upper rear right side of the base via an L-shaped bracket. The output end of the servo motor is fixedly connected to the right end of the bidirectional lead screw, and the left end of the bidirectional lead screw is rotatably connected to the vertical plate. Two fixing plates are threadedly connected to both ends of the bidirectional lead screw.

[0011] Furthermore, the sliding blocks are symmetrically distributed on the left and right sides of the upper end of the guide rail;

[0012] Furthermore, the synchronous rotation drive assembly includes a motor, a transmission assembly, a polygonal connecting rod, a rotating shaft, and a support plate. The support plate is symmetrically fixedly installed on the left and right sides of the upper end of the base. The left and right ends of the polygonal connecting rod are rotatably connected to the support plate through bearings. The motor is fixedly installed on the left end of the left support plate, and the output end of the motor is fixedly connected to the polygonal connecting rod. The rotating shaft is rotatably installed on the fixed plate and is connected to the transmission assembly. The rotating shaft is fixedly connected to the grinding disc.

[0013] Furthermore, the transmission assembly includes a driven synchronous pulley, a driving synchronous pulley, and a synchronous belt. The driven synchronous pulley is rotatably mounted on the front side of one end of the two fixed plates that are close to each other, and the driving synchronous pulley is rotatably mounted on the rear side of one end of the two fixed plates that are close to each other. A synchronous belt is wound around the outer side of the driven synchronous pulley and the driving synchronous pulley to enable transmission between them. The rotating shaft is fixedly connected to the driven synchronous pulley. A movable groove is provided in the middle of the fixed plate, and the left and right sides of the polygonal connecting rod pass through the movable groove and are keyed to the driving synchronous pulleys on the left and right sides.

[0014] Furthermore, the rotating mechanism includes a rotating table and a rotary cylinder. The rotating table is rotatably mounted on the upper front side of the base, and the rotary cylinder is fixedly mounted inside the base by a support member, and the output end of the rotary cylinder is fixedly connected to the rotating table; a self-centering four-jaw chuck is fixedly mounted on the upper end of the rotating table.

[0015] Furthermore, the self-centering four-jaw chuck has rubber pads on its jaws to increase friction with the cross shaft body.

[0016] Compared to existing technologies, the advantages of this invention are as follows: The cross shaft body to be polished is placed on a self-centering four-jaw chuck. The self-centering four-jaw chuck fixes the cross shaft body. Then, the synchronous movement component is activated, causing two fixed plates to move simultaneously towards the shaft end face of the cross shaft body. During this movement, the synchronous rotation drive component rotates the polishing disc. When the polishing disc touches the shaft end face of the cross shaft body, polishing can begin. After polishing the left and right shaft end faces of the cross shaft body, the synchronous movement component moves the two polishing discs simultaneously away from the cross shaft body. Then, the rotation mechanism rotates the self-centering four-jaw chuck, causing the unpolished shaft end faces on the front and rear sides of the cross shaft body to rotate 90 degrees. The unpolished end faces of the shaft head on both the front and rear sides face the polishing discs. Then, the synchronous movement component works again to move the two polishing discs toward the end faces of the cross shaft body. In conjunction with the synchronous rotation drive component, the polishing discs polish the other two unpolished end faces of the cross shaft body. Through the rotation mechanism, the polishing discs can perform multi-angle polishing operations on the cross shaft body, reducing the extra workload of manually changing angles and improving the polishing efficiency of the device. Furthermore, through the synchronous movement component, the device can polish both end faces of the cross shaft body simultaneously and can adapt to workpieces of different sizes, improving the practicality of the device. And through the synchronous rotation drive component, the device only needs one driving force to perform polishing operations on both end faces of the cross shaft body and maintain synchronization, ensuring polishing quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This utility model provides a three-dimensional multi-angle grinding device for mechanical parts. Figure 1 ;

[0019] Figure 2 This is a front view of a multi-angle mechanical parts grinding device according to the present invention;

[0020] Figure 3 This utility model provides a three-dimensional multi-angle grinding device for mechanical parts. Figure 2 ;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] The labels in the diagram represent:

[0023] 1. Base; 2. Self-centering four-jaw chuck; 3. Adjustable grinding mechanism; 31. Fixed plate; 32. Synchronous movement assembly; 321. Servo motor; 322. Two-way lead screw; 323. Guide rail; 324. Sliding block; 325. Vertical plate; 33. Synchronous rotation drive assembly; 331. Motor; 332. Driven synchronous pulley; 333. Active synchronous pulley; 334. Synchronous belt; 335. Polygonal connecting rod; 336. Rotating shaft; 337. Support plate; 4. Grinding disc; 5. Rotating mechanism; 51. Rotating table; 52. Rotary cylinder; 6. Cross shaft body. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0026] In some embodiments, please refer to the accompanying drawings. Figures 1-4A multi-angle grinding device for mechanical parts includes a base 1, a self-centering four-jaw chuck 2, an adjustable grinding mechanism 3, a grinding disc 4, a rotating mechanism 5, and a cross shaft body 6. The rotating mechanism 5, which controls the movement of the self-centering four-jaw chuck 2, is mounted on the upper front side of the base 1. The self-centering four-jaw chuck 2 is mounted on the rotating mechanism 5 and is used to fix the cross shaft body 6. The adjustable grinding mechanism 3, which controls the rotation and movement of the rotating mechanism 5, is mounted on the upper rear side of the base 1. The adjustable grinding mechanism 3 includes two fixed plates 31, a synchronous moving component 32 for controlling the simultaneous movement of the two fixed plates 31, and a synchronous rotation drive component 33 for driving the grinding disc 4 to rotate and grind the end face of the cross shaft body 6. The synchronous moving component 32 is installed on the upper end of the base 1, the two fixed plates 31 are installed on the synchronous moving component 32, and the fixed plates 31 are connected to the synchronous rotation drive component 33. The jaws of the self-centering four-jaw chuck 2 are provided with rubber pads to increase the friction with the cross shaft body 6.

[0027] In this invention, the cross shaft body 6 to be polished is placed on the self-centering four-jaw chuck 2. The self-centering four-jaw chuck 2 fixes the cross shaft body 6. Then, the synchronous movement component 32 is activated, which drives the two fixing plates 31 to move simultaneously toward the shaft end face of the cross shaft body 6. During the movement, the synchronous rotation drive component 33 drives the polishing disc 4 to rotate. When the polishing disc 4 touches the shaft end face of the cross shaft body 6, the shaft end face of the cross shaft body 6 can be polished. After the polishing of the left and right shaft end faces of the cross shaft body 6 is completed, the synchronous movement component 32 drives the two polishing discs 4 to move simultaneously away from the cross shaft body 6. Then, the rotation mechanism 5 drives the self-centering four-jaw chuck 2 to rotate, causing the unpolished shaft end faces on the front and rear sides of the cross shaft body 6 to rotate 90 degrees, so that the front... The unpolished end faces of the shaft heads on both sides face the polishing discs 4. Then, the synchronous moving component 32 works again to drive the two polishing discs 4 toward the end faces of the cross shaft body 6. In conjunction with the synchronous rotation drive component 33, the polishing discs 4 polish the other two unpolished end faces of the cross shaft body 6. Through the rotating mechanism 5, the polishing discs 4 can perform multi-angle polishing operations on the cross shaft body 6, reducing the extra workload of manually changing angles and improving the polishing efficiency of the device. Furthermore, through the synchronous moving component 32, the device can polish the two end faces of the cross shaft body 6 simultaneously and can adapt to workpieces of different sizes, improving the practicality of the device. And through the synchronous rotation drive component 33, the device only needs one driving force to perform polishing operations on the two end faces of the cross shaft body 6 and maintain synchronization, ensuring the polishing quality.

[0028] The rotating mechanism 5 includes a rotating platform 51 and a rotary cylinder 52. The rotating platform 51 is rotatably mounted on the upper front side of the base 1, and the rotary cylinder 52 is fixedly mounted inside the base 1 by a support member, and the output end of the rotary cylinder 52 is fixedly connected to the rotating platform 51; the self-centering four-jaw chuck 2 is fixedly mounted on the upper end of the rotating platform 51.

[0029] In this utility model, the cross shaft body 6 is mounted on the self-centering four-jaw chuck 2, and the rotary cylinder 52 drives the rotating table 51 to rotate, thereby controlling the rotation angle of the cross shaft body 6.

[0030] The synchronous movement assembly 32 includes a servo motor 321, a bidirectional lead screw 322, a guide rail 323, a sliding block 324, and a vertical plate 325. The guide rail 323 is fixedly installed at the upper middle part of the base 1, and the sliding blocks 324 are symmetrically limited and slidably connected on the left and right sides of the upper end of the guide rail 323. The fixed plate 31 is fixedly installed on the upper end of the sliding block 324. The servo motor 321 is fixedly installed on the upper rear right side of the base 1 through an L-shaped bracket. The output end of the servo motor 321 is fixedly connected to the right end of the bidirectional lead screw 322. The vertical plate 325 is fixedly installed on the upper left side of the base 1, and the left end of the bidirectional lead screw 322 is rotatably connected to the vertical plate 325. The two fixed plates 31 are threadedly connected to both ends of the bidirectional lead screw 322.

[0031] The synchronous rotation drive assembly 33 includes a motor 331, a driven synchronous pulley 332, a driving synchronous pulley 333, a synchronous belt 334, a polygonal connecting rod 335, a rotating shaft 336, and a support plate 337. The support plate 337 is symmetrically fixedly installed on the upper left and right sides of the base 1. The left and right ends of the polygonal connecting rod 335 are rotatably connected to the support plate 337 through bearings. The motor 331 is fixedly installed on the left end of the left support plate 337, and the output end of the motor 331 is fixedly connected to the polygonal connecting rod 335.

[0032] The rotating shaft 336 is rotatably mounted on the fixed plate 31; the driven synchronous drive wheel 332 is rotatably mounted on the front side of one end of the two fixed plates 31 that are close to each other, and the driving synchronous pulley 333 is rotatably mounted on the rear side of one end of the two fixed plates 31 that are close to each other; a synchronous belt 334 is wound around the outer side of the driven synchronous drive wheel 332 and the driving synchronous pulley 333 to make the two drive connected; and the rotating shaft 336 is fixedly connected to the driven synchronous drive wheel 332; the rotating shaft 336 is fixedly connected to the grinding disc 4; a movable groove is provided in the middle of the fixed plate 31, and the left and right sides of the polygonal connecting rod 335 pass through the movable groove and are keyed to the driving synchronous pulleys 333 on the left and right sides;

[0033] In this invention, the servo motor 321 drives the bidirectional lead screw 322 to rotate, causing the two fixed plates 31 to move along the guide rail 323 towards the cross shaft body 6, following the sliding block 324. Meanwhile, the active synchronous pulley 333 moves along the polygonal connecting rod 335. During the movement, the motor 331 drives the polygonal connecting rod 335 to rotate, causing the active synchronous pulley 333 to rotate along with the polygonal connecting rod 335. The rotation of the active synchronous pulley 333 drives the synchronous belt 334 to rotate, causing the driven synchronous pulley 332 to rotate along with the active synchronous pulley 333. This causes the driven synchronous pulleys 332 on both sides to simultaneously drive the rotating shaft 336 to rotate, allowing the grinding disc 4 to grind the cross shaft body 6.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-angle mechanical parts grinding device, comprising a base (1), characterized in that: It also includes a self-centering four-jaw chuck (2), an adjustable grinding mechanism (3), a grinding disc (4), a rotating mechanism (5), and a cross shaft body (6). A rotating mechanism (5) for controlling the movement of a self-centering four-jaw chuck (2) is installed on the upper front side of the base (1). The self-centering four-jaw chuck (2) is installed on the rotating mechanism (5) and is used to fix the cross shaft body (6). An adjustable grinding mechanism (3) for controlling the rotation and movement of the rotating mechanism (5) is installed on the upper rear side of the base (1). The adjustable grinding mechanism (3) includes two fixed plates (31), a synchronous moving component (32) for controlling the simultaneous movement of the two fixed plates (31), and a synchronous rotation drive component (33) for driving the grinding disc (4) to rotate and grind the end face of the cross shaft body (6). The synchronous moving component (32) is installed on the upper end of the base (1), the two fixed plates (31) are installed on the synchronous moving component (32), and the fixed plates (31) are connected to the synchronous rotation drive component (33).

2. The multi-angle mechanical parts grinding device according to claim 1, characterized in that, The synchronous movement component (32) includes a synchronous movement drive component, a guide rail (323), a sliding block (324), and a vertical plate (325). The guide rail (323) is fixedly installed in the middle of the upper end of the base (1), and two sliding blocks (324) are slidably connected to the upper end of the guide rail (323). The fixed plate (31) is fixedly installed on the upper end of the sliding block (324). The vertical plate (325) is fixedly installed on the upper left side of the base (1), and the vertical plate (325) is connected to the synchronous movement drive component.

3. The multi-angle mechanical parts grinding device according to claim 2, characterized in that, The synchronous motion drive assembly includes a servo motor (321) and a bidirectional lead screw (322). The servo motor (321) is fixedly mounted on the upper rear right side of the base (1) by an L-shaped bracket. The output end of the servo motor (321) is fixedly connected to the right end of the bidirectional lead screw (322), and the left end of the bidirectional lead screw (322) is rotatably connected to the upright plate (325). Two fixing plates (31) are threadedly connected to both ends of the bidirectional lead screw (322).

4. The multi-angle mechanical parts grinding device according to claim 3, characterized in that, The sliding blocks (324) are symmetrically distributed on the left and right sides of the upper end of the guide rail (323).

5. The multi-angle mechanical parts grinding device according to claim 4, characterized in that, The synchronous rotation drive assembly (33) includes a motor (331), a transmission assembly, a polygonal connecting rod (335), a rotating shaft (336), and a support plate (337). The support plate (337) is symmetrically fixedly installed on the upper left and right sides of the base (1). The left and right ends of the polygonal connecting rod (335) are rotatably connected to the support plate (337) through bearings. The motor (331) is fixedly installed on the left end of the left support plate (337), and the output end of the motor (331) is fixedly connected to the polygonal connecting rod (335). The rotating shaft (336) is rotatably installed on the fixed plate (31). The rotating shaft (336) is connected to the transmission assembly. The rotating shaft (336) is fixedly connected to the grinding disc (4).

6. The multi-angle mechanical parts grinding device according to claim 5, characterized in that, The transmission assembly includes a driven synchronous drive wheel (332), a driving synchronous pulley (333), and a synchronous belt (334). The driven synchronous drive wheel (332) is rotatably mounted on the front side of one end of the two fixed plates (31) that are close to each other, and the driving synchronous pulley (333) is rotatably mounted on the rear side of one end of the two fixed plates (31) that are close to each other. The driven synchronous drive wheel (332) and the driving synchronous pulley (333) are wrapped with a synchronous belt (334) to make them drively connected. The rotating shaft (336) is fixedly connected to the driven synchronous drive wheel (332). The fixed plate (31) has a movable groove in the middle, and the left and right sides of the polygonal connecting rod (335) pass through the movable groove and are keyed to the driving synchronous pulleys (333) on the left and right sides.

7. The multi-angle mechanical parts grinding device according to claim 1, characterized in that, The rotating mechanism (5) includes a rotating platform (51) and a rotary cylinder (52). The rotating platform (51) is rotatably mounted on the upper front side of the base (1). The rotary cylinder (52) is fixedly mounted inside the base (1) by a support member, and the output end of the rotary cylinder (52) is fixedly connected to the rotating platform (51). The self-centering four-jaw chuck (2) is fixedly mounted on the upper end of the rotating platform (51).

8. The multi-angle mechanical parts grinding device according to claim 1, characterized in that, The jaws of the self-centering four-jaw chuck (2) are provided with rubber pads to increase the friction with the cross shaft body (6).

Citation Information

Patent Citations

  • Universal joint pin end face grinding table

    CN215147634U