Servo arc grinding wheel dresser

Abstract

The utility model relates to the technical field of dressers, in particular to a servo arc grinding wheel dresser which is provided with a U-shaped supporting seat, rotation units are rotatably arranged on the two sides of the U-shaped supporting seat and connected with a driving unit through a transmission unit, a swing support is arranged on the rotation units, and a dressing unit is arranged in the middle of the swing support. A diamond pen in the trimming unit directly trims the grinding wheel, the diamond pen is arranged on a threaded rod, the position of the diamond pen is adjusted by rotating a scale sleeve, and accurate control and rapid adjustment of the position of the diamond pen are achieved; a plurality of compression springs arranged side by side provide stable pre-tightening force for the scale sleeve and the threaded rod, so that a thread gap is eliminated, and the moving precision of the diamond pen is improved; the multiple compression springs arranged side by side can ensure that pressure is uniformly distributed in the circumferential direction of the scale sleeve and the threaded rod, so that the stress is uniform, and the operation stability of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dressers, in particular to a servo circular arc grinding wheel dresser. Background Art

[0002] Arc dressers are an important device in the field of grinding wheel dressing for grinding machines. They are primarily used to precisely shape the grinding wheel into an arc. With higher dressing accuracy and better stability, arc dressers can meet the high demands of modern industry for grinding wheel dressing, achieving precise shaping of the grinding wheel arc, thereby ensuring the quality of the grinding process. Arc dressers typically consist of a rotating structure that holds a diamond stylus or other dressing tool. During this rotational motion, the tool contacts the grinding wheel, thereby dressing it.

[0003] However, there is a key defect in the use of the arc grinding wheel dresser: the threaded connection between the diamond pen and the connecting frame will produce a thread gap. The existence of the thread gap will cause the actual distance between the diamond pen and the core shaft to change, thereby affecting the dressing accuracy. Summary of the Invention

[0004] To solve the above problems, the present application provides a servo circular arc grinding wheel dresser, which is provided with a U-shaped support seat, and a rotating unit is rotatably provided on both sides of the U-shaped support seat, and the rotating unit is connected to the driving unit through a transmission unit, and a swing bracket is provided on the swing unit, and a dressing unit is provided in the middle of the swing bracket, and the dressing unit includes a diamond pen, and the diamond pen is provided on a threaded rod, and a scale sleeve is provided on the outside of the threaded rod, and the threaded rod and the scale sleeve are threadedly connected, and a bushing is provided on the outside of the scale sleeve, and the bushing is fixedly installed on the swing bracket by a bolt assembly, and a locking nut is provided at the bottom of the scale sleeve, and the locking nut is located below the bushing, and a plurality of compression springs are arranged side by side between the locking nut and the bushing, and a guide sleeve is provided below the scale sleeve, and a cylindrical pin is provided on the inside of the guide sleeve, and a guide groove is provided on the threaded rod.

[0005] In one embodiment, the inner diameters of the guide sleeve and the scale sleeve are the same, and a washer is provided between the compression spring and the locking nut.

[0006] In one embodiment, the guide groove is provided along the axial direction of the threaded rod, and the guide groove is located on the side surface of the threaded rod.

[0007] In one embodiment, the driving unit includes a servo motor, the servo motor is connected to a reducer, and the reducer is connected to the transmission unit via a coupling.

[0008] In one embodiment, the rotary unit includes a rotary shaft, and a bearing is provided on the rotary shaft.

[0009] In one embodiment, the transmission unit includes a driving pulley, a driven pulley, and a conveyor belt, the driving pulley is connected to the coupling, and the driven pulley is connected to the rotating shaft.

[0010] In one embodiment, a support box is provided below the U-shaped support seat, and the driving unit is placed in the support box.

[0011] In one embodiment, a protective cover is provided on the outside of the transmission unit.

[0012] The beneficial effects of the present invention are:

[0013] The present application discloses a servo circular arc grinding wheel dresser, which is provided with a U-shaped support seat, a rotary unit, a transmission unit, and a drive unit. The rotary unit is provided with a swing bracket, and the dressing unit is provided in the middle of the swing bracket. The movement of the swing bracket drives the dressing unit to move, so that the dressing unit can move according to a predetermined trajectory to adapt to the dressing requirements of grinding wheels of different shapes and sizes. The diamond pen in the dressing unit directly dresses the grinding wheel. The diamond pen is provided on a threaded rod. The upper and lower positions of the diamond pen can be precisely adjusted by rotating the scale sleeve. The compression spring provides a stable preload force for the scale sleeve and the threaded rod, eliminating thread gaps. The scale sleeve and the threaded rod are threadedly connected, and the position of the diamond pen can be adjusted by rotating the scale sleeve, realizing precise control and rapid adjustment of the diamond pen position. Multiple compression springs arranged side by side provide a stable preload force for the scale sleeve and the threaded rod, thereby eliminating thread gaps and improving the accuracy of the diamond pen. The multiple compression springs arranged side by side can ensure that the pressure is evenly distributed along the circumference of the scale sleeve and the threaded rod, so that the force is evenly distributed, thereby ensuring the stability and accuracy of the diamond pen operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is the front view of the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view;

[0017] Explanation of symbols in the figure:

[0018] 1. U-shaped support seat; 11. Support box;

[0019] 2. Rotary unit; 21. Rotary shaft; 22. Bearing;

[0020] 3. Transmission unit; 31. Driving pulley; 32. Driven pulley; 33. Conveyor belt;

[0021] 4. Drive unit; 41. Servo motor; 42. Reducer; 43. Coupling;

[0022] 5. Swing bracket;

[0023] 6. Dressing unit; 61. Diamond pen; 62. Threaded rod; 63. Scale sleeve; 64. Bushing; 65. Lock nut; 66. Compression spring; 67. Guide sleeve; 68. Cylindrical pin; 69. Guide groove; 610. Washer;

[0024] 7. Protective cover. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0026] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0027] like Figure 1-3 As shown, a servo circular arc grinding wheel dresser is provided with a U-shaped support seat 1, and a rotary unit 2 is rotatably provided on both sides of the U-shaped support seat 1. The rotary unit 2 is connected to the drive unit 4 through a transmission unit 3. A swing bracket 5 is provided on the rotary unit 2, and a dressing unit 6 is provided in the middle of the swing bracket 5. The dressing unit 6 includes a diamond pen 61, which is provided on a threaded rod 62. A scale sleeve 63 is provided on the outside of the threaded rod 62. The threaded rod 62 is provided with a scale sleeve 63. 3 is connected by a thread. The outer sleeve 63 is provided with a bushing 64, and the bushing 64 is fixedly mounted on the swing bracket 5 by a bolt assembly. A locking nut 65 is provided at the bottom of the scale sleeve 63, and the locking nut 65 is located below the bushing 64. A plurality of compression springs 66 are arranged side by side between the locking nut 65 and the bushing 64. A guide sleeve 67 is provided below the scale sleeve 63, and a cylindrical pin 68 is provided inside the guide sleeve 67. A guide groove 69 is provided on the threaded rod 62.

[0028] Specifically, the servo circular arc grinding wheel dresser is powered by the drive unit 4, which is transmitted to the rotary unit 2 by the transmission unit 3. After receiving the power, the rotary unit 2 drives the swing bracket 5 to rotate on both sides of the U-shaped support seat 1. The movement of the swing bracket 5 further drives the dressing unit 6 to move, so that the dressing unit 6 can move along a predetermined trajectory to adapt to the dressing needs of grinding wheels of different shapes and sizes. The diamond pen 61 in the dressing unit 6 directly dresses the grinding wheel. The diamond pen 61 is set on the threaded rod 62. The upper and lower positions of the diamond pen 61 can be precisely adjusted by rotating the scale sleeve 63. During the adjustment process, since the scale sleeve 63 and the threaded rod 62 are threadedly connected, there is a thread gap. In order to eliminate the thread gap, a plurality of compression springs 66 arranged side by side are provided. The compression springs 66 provide a stable preload for the scale sleeve 63 and the threaded rod 62. Once the diamond pen 61 reaches the desired position and is locked, the grinding wheel can be trimmed. During the trimming process, the diamond pen 61 accurately trims the grinding wheel according to a predetermined trajectory and speed until the desired shape and accuracy are achieved. The threaded connection between the scale sleeve 63 and the threaded rod 62 allows the position of the diamond pen 61 to be adjusted by rotating the scale sleeve 63, achieving precise control and rapid adjustment of the position of the diamond pen 61. Multiple compression springs 66 arranged side by side provide a stable preload for the scale sleeve 63 and threaded rod 62, thereby eliminating thread gaps and improving the accuracy of the diamond pen 61. Multiple compression springs 66 arranged side by side ensure that the pressure is evenly distributed along the circumference of the scale sleeve 63 and threaded rod 62, so that the force is evenly distributed, ensuring the stability and accuracy of the diamond pen operation.

[0029] like Figure 3 As shown, the inner diameter of the guide sleeve 67 is the same as that of the scale sleeve 63 , and a washer 610 is provided between the compression spring 66 and the locking nut 65 .

[0030] Specifically, the locking nut 65 is locked on the scale sleeve 63 and rotates together with the locking nut 65 when the scale sleeve 63 is rotated. The guide sleeve 67 supports and guides the threaded rod 62, while the scale sleeve 63 is used to threadably connect with the threaded rod 62 and adjust its position. The inner diameters of the two are the same, which ensures that the threaded rod 62 will not be subject to additional resistance or friction during movement, thereby maintaining the smoothness and accuracy of its movement and improving the overall accuracy of the trimmer. The washer 610 ensures that the compression spring 66 can maintain a stable preload when under pressure, ensuring that the trimming unit 6 is stable and reliable in the adjusted position.

[0031] like Figure 3 As shown, the guide groove 69 is provided along the axial direction of the threaded rod 62 , and the guide groove 69 is located on the side surface of the threaded rod 62 .

[0032] Specifically, the main function of the guide groove 69 is to guide the movement of the cylindrical pin 68, ensuring that the threaded rod 62 can only move axially but not rotate, limiting the rotational freedom of the threaded rod 62, and allowing it only to move linearly along the axial direction. By setting the guide groove 69 on the side surface of the threaded rod 62, it can be easily matched with the cylindrical pin 68 to achieve precise guiding and positioning functions and improve the finishing accuracy.

[0033] like Figure 2 As shown, the driving unit 4 includes a servo motor 41 , the servo motor 41 is connected to a reducer 42 , and the reducer 42 is connected to the transmission unit 3 via a coupling 43 .

[0034] Specifically, the servo motor 41 serves as the power source, with its output shaft connected to the input shaft of the reducer 42. The output shaft of the reducer 42 is connected to the input shaft of the transmission unit 3 via a coupling 43, which ensures smooth and accurate torque transmission between the two. After being decelerated and torque-increased by the reducer 42, the driving force of the servo motor 41 is transmitted to the transmission unit 3 via the coupling 43, thereby driving the entire servo circular grinding wheel dresser to operate.

[0035] like Figure 2 As shown, the rotary unit 2 includes a rotary shaft 21 , and a bearing 22 is provided on the rotary shaft 21 .

[0036] Specifically, when external power drives the rotary shaft 21 to rotate, the bearing 22 can ensure that the rotary shaft 21 maintains a smooth and precise motion trajectory during rotation, thereby meeting the requirements of the servo circular grinding wheel dresser for rotation angle and accuracy during operation.

[0037] like Figure 2 As shown, the transmission unit 3 includes a driving pulley 31 , a driven pulley 32 , and a conveyor belt 33 . The driving pulley 31 is connected to the coupling 43 , and the driven pulley 32 is connected to the rotary shaft 21 .

[0038] Specifically, the transmission unit 3 consists of a driving pulley 31, a driven pulley 32, and a conveyor belt 33 that wraps around them. The driving pulley 31 is tightly connected to the drive unit 4 via a coupling 43. The conveyor belt 33 acts as a power transmission medium, transmitting the rotational power of the driving pulley 31 to the driven pulley 32. The rotation of the driven pulley 32 drives the rotation of the rotating shaft 21 connected to it, thereby achieving power transmission and driving the rotating shaft 21. A protective cover 31 is provided on the outside of the transmission unit 3 for protective purposes.

[0039] like Figure 1 As shown, a support box 11 is provided below the U-shaped support seat 1 , and the drive unit 4 is placed in the support box 11 .

[0040] Specifically, a support box 11 is provided below the U-shaped support base 1 to provide stability and support. Placing the drive unit 4 in the support box 11 not only effectively protects the drive unit 4, but also makes the entire device compact and stable.

[0041] Compared with the prior art, the present invention has the following advantages:

[0042] The present application provides a servo circular arc grinding wheel dresser, which is provided with a U-shaped support seat 1. Rotating units 2 are rotatably provided on both sides of the U-shaped support seat 1. The rotating unit 2 is connected to the driving unit 4 through the transmission unit 3. A swing bracket 5 is provided on the swing unit 2, and a dressing unit 6 is provided in the middle of the swing bracket 5. When the equipment is in operation, the driving unit 4 provides power, which is transmitted to the swing unit 2 by the transmission unit 3. After receiving the power, the swing unit 2 drives the swing bracket 5 to perform rotatable movement on both sides of the U-shaped support seat 1. The movement of the swing bracket 5 further drives the dressing unit 6 to move, so that the dressing unit 6 can move according to a predetermined trajectory to meet the dressing needs of grinding wheels of different shapes and sizes; the diamond pen 61 in the dressing unit 6 directly dresses the grinding wheel, and the diamond pen 61 is provided on the threaded rod 62. The upper and lower positions of the diamond pen 61 can be accurately adjusted by rotating the scale sleeve 63. The compression spring 66 is for the scale sleeve 63 and The threaded rod 62 provides a stable pre-tightening force to eliminate thread gaps; the threaded connection between the scale sleeve 63 and the threaded rod 62 allows the position of the diamond pen 61 to be adjusted by rotating the scale sleeve 63, thereby achieving precise control and rapid adjustment of the position of the diamond pen 61; multiple compression springs 66 arranged side by side provide a stable pre-tightening force for the scale sleeve 63 and the threaded rod 62, thereby eliminating thread gaps and improving the accuracy of the diamond pen 61; multiple compression springs 66 arranged side by side can ensure that the pressure is evenly distributed along the circumferential direction of the scale sleeve 63 and the threaded rod 62, so that the force is evenly distributed, thereby ensuring the stability and accuracy of the diamond pen operation.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0044] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A servo circular arc grinding wheel dresser, provided with a U-shaped support seat (1), wherein a rotary unit (2) is rotatably provided on both sides of the U-shaped support seat (1), the rotary unit (2) is connected to a driving unit (4) through a transmission unit (3), a swing bracket (5) is provided on the swing unit (2), a dressing unit (6) is provided in the middle of the swing bracket (5), the dressing unit (6) comprises a diamond pen (61), the diamond pen (61) is provided on a threaded rod (62), a scale sleeve (63) is provided on the outside of the threaded rod (62), the threaded rod (62) and the scale sleeve (63) are connected by threads, the scale sleeve (63) is provided on the outside of the bushing (64), the bushing (64) is fixedly mounted on the swing bracket (5) by a bolt assembly, a locking nut (65) is provided at the bottom of the scale sleeve (63), and the locking nut (65) is located below the bushing (64), characterized in that A plurality of compression springs (66) are arranged side by side between the locking nut (65) and the bushing (64), a guide sleeve (67) is arranged below the scale sleeve (63), a cylindrical pin (68) is arranged inside the guide sleeve (67), and a guide groove (69) is arranged on the threaded rod (62).

2. A servo arc grinding wheel dresser according to claim 1, characterized in that: The inner hole diameter of the guide sleeve (67) and the scale sleeve (63) is the same, and a washer (610) is provided between the compression spring (66) and the locking nut (65).

3. The servo arc grinding wheel dresser according to claim 1, characterized in that: The guide groove (69) is arranged along the axial direction of the threaded rod (62), and the guide groove (69) is located on the side surface of the threaded rod (62).

4. The servo arc grinding wheel dresser according to claim 1, characterized in that: The drive unit (4) includes a servo motor (41), the servo motor (41) is connected to a reducer (42), and the reducer (42) is connected to the transmission unit (3) via a coupling (43).

5. The servo arc grinding wheel dresser according to claim 4, characterized in that: The rotary unit (2) comprises a rotary shaft (21), and a bearing (22) is provided on the rotary shaft (21).

6. The servo arc grinding wheel dresser according to claim 5, characterized in that: The transmission unit (3) comprises a driving pulley (31), a driven pulley (32), and a conveyor belt (33); the driving pulley (31) is connected to the coupling (43); and the driven pulley (32) is connected to the rotary shaft (21).

7. The servo arc grinding wheel dresser according to claim 1, characterized in that: A support box (11) is provided below the U-shaped support seat (1), and the drive unit (4) is placed in the support box (11).

8. The servo arc grinding wheel dresser according to claim 1, characterized in that: A protective cover (7) is provided on the outside of the transmission unit (3).

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