Grinding wheel dresser precision guarantee method

Abstract

This application relates to the field of dressing technology, and in particular to a method for ensuring the accuracy of a grinding wheel dresser. The dresser is provided with a U-shaped support seat, and a first support circular hole and a second support circular hole are respectively provided on both sides of the U-shaped support seat. During processing, the inner diameter of the first support circular hole is made smaller than the inner diameter of the second support circular hole. A steel shaft is inserted into the first support circular hole and the second support circular hole. The U-shaped support seat with the inserted steel shaft is placed vertically, and there will be a gap between the second support circular hole and the steel shaft. High-strength adhesive is filled into the gap between the steel shaft and the second support circular hole 12. After the adhesive solidifies, the steel shaft is removed. At this time, the coaxiality of the first support circular hole and the second support circular hole is relatively high. Due to the fixing effect of the adhesive and the calibration effect of the steel shaft, the coaxiality of the first support circular hole and the second support circular hole has reached a high precision. By using the steel shaft for calibration, the accuracy of the dresser can be significantly improved, enabling it to meet the requirements of high-precision processing.

Description

Technical Field

[0001] This invention relates to the field of dressing technology, and in particular to a method for ensuring the accuracy of a grinding wheel dresser. Background Technology Circular arc dressers are important devices in the field of grinding wheel dressing, mainly used for precise arc-shaped dressing of grinding wheels. Circular arc dressers offer higher dressing accuracy and better stability, meeting the high demands of modern industry for grinding wheel dressing. They achieve precise dressing of the grinding wheel's arc shape, thereby ensuring the quality of grinding operations. A circular arc dresser typically includes a rotating structure on which a diamond dressing tool or other dressing tool is held. During its rotational motion, this tool contacts the grinding wheel, thus dressing it.

[0002] As a key piece of equipment in precision machining, the circular arc grinding wheel dresser has extremely stringent precision requirements. Two main factors affect its accuracy: First, the coaxiality of the circular holes on both sides of the support seat is fundamental to ensuring stable operation and accurate dressing of the grinding wheel profile. During circular arc grinding wheel dressing, the support seat supports and guides the rotation of the rotary unit and the swing bracket through its circular holes. If the coaxiality of the two holes is not up to standard, it will cause deviations in the rotational movement, thus affecting the accuracy and consistency of the dresser's dressing of the grinding wheel. Second, the thread clearance between the diamond pen and the connecting frame is crucial. The diamond pen is fixed to the connecting frame via a threaded connection. If the thread clearance is too large or unstable, it will cause the diamond pen to wobble or shift during the dressing process, thus affecting the dressing accuracy. Summary of the Invention

[0003] To solve the above problems, this application provides a method for ensuring the accuracy of a grinding wheel dresser. The dresser is provided with a U-shaped support seat, and a rotary unit is rotatably provided on both sides of the U-shaped support seat. The rotary unit is connected to a drive unit through a transmission unit. A swing bracket is provided on the rotary unit, and a dressing unit is provided in the middle of the swing bracket. S1. The U-shaped support seat is provided with a first support circular hole and a second support circular hole on both sides respectively. During processing, the inner diameter of the first support circular hole is made smaller than the inner diameter of the second support circular hole. S2. Take a steel shaft, the diameter of which is the same as the inner diameter of the first support hole; S3. Insert the steel shaft into the first support hole and the second support hole, and apply a release agent to the end of the steel shaft near the second support hole; S4. Place the U-shaped support seat with the inserted steel shaft vertically, so that one side of the first support hole is above the second support hole. Since the inner diameter of the first support hole is the same as the diameter of the steel shaft, and the inner diameter of the first support hole is smaller than the inner diameter of the second support hole, there will be a gap between the second support hole and the steel shaft. Fill the gap between the steel shaft and the second support hole with high-strength adhesive. After the adhesive solidifies, remove the steel shaft. At this time, the coaxiality of the first support hole and the second support hole is relatively high.

[0004] In one embodiment, the trimming unit includes a diamond pen, which is mounted on a threaded rod. A graduated sleeve is fitted over the threaded rod, and the threaded rod and the graduated sleeve are connected by threads. A bushing is fitted over the graduated sleeve, and the bushing is fixedly mounted on the swing bracket by a bolt assembly. A locking nut is provided at the bottom of the graduated sleeve, and the locking nut is located below the bushing. Multiple compression springs are arranged side by side between the locking nut and the bushing. A guide sleeve is provided below the graduated sleeve, and a cylindrical pin is provided on the inner side of the guide sleeve. A guide groove is provided on the threaded rod.

[0005] In one embodiment, the inner diameter of the guide sleeve and the graduated 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 is located on the side surface of the threaded rod.

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

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

[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 rotary shaft.

[0010] In one embodiment, a support box is provided below the U-shaped support base, and the drive unit is placed inside the support box.

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

[0012] The beneficial effects of this invention are as follows: This application discloses a method for ensuring the accuracy of a grinding wheel dresser. The dresser is equipped with a U-shaped support seat, with a first support hole and a second support hole on each side of the U-shaped support seat. During processing, the inner diameter of the first support hole is made smaller than the inner diameter of the second support hole. A steel shaft with the same diameter as the first support hole is used. The steel shaft is inserted into the first and second support holes. The U-shaped support seat with the steel shaft inserted is placed vertically, and high-strength adhesive is filled into the gap between the steel shaft and the second support hole. After the adhesive solidifies, the steel shaft is removed. At this point, the coaxiality of the first and second support holes is high. Due to the fixing effect of the adhesive and the calibration effect of the steel shaft, the coaxiality of the first and second support holes has reached a high precision. By using the steel shaft for calibration, the accuracy of the dresser can be significantly improved, enabling it to meet the requirements of high-precision processing. The method of using a steel shaft and filling with high-strength adhesive is relatively simple and low-cost, avoiding complex machining processes, thereby reducing production costs and time.

[0013] The position of the diamond pen is adjusted by rotating the scale sleeve, enabling precise control and rapid adjustment of the pen's position. Multiple compression springs arranged side by side provide stable preload to the scale sleeve and threaded rod, thereby eliminating thread clearance and improving the accuracy of the diamond pen. The multiple compression springs arranged side by side ensure that the pressure is evenly distributed along the circumference of the scale sleeve and threaded rod, making the force uniform and thus ensuring the stability and accuracy of the diamond pen's operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the U-shaped support structure; Figure 3 This is a front view of the present invention; Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle; Explanation of symbols in the diagram: 1. U-shaped support base; 11. First support hole; 12. Second support hole; 13. Support box; 2. Rotary unit; 21. Rotary shaft; 22. Bearing; 3. Transmission unit; 31. Driving pulley; 32. Driven pulley; 33. Conveyor belt; 4. Drive unit; 41. Servo motor; 42. Reducer; 43. Coupling; 5. Swinging support; 6. Trimming unit; 61. Diamond pen; 62. Threaded rod; 63. Scale sleeve; 64. Bushing; 65. Locking nut; 66. Compression spring; 67. Guide sleeve; 68. Cylindrical pin; 69. Guide groove; 610. Washer; 7. Protective cover. Detailed Implementation

[0015] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0016] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0017] like Figure 1-3 As shown, a method for ensuring the accuracy of a grinding wheel dresser is disclosed. The dresser is provided with a U-shaped support 1, and rotating units 2 are rotatably arranged on both sides of the U-shaped support 1. The rotating units 2 are connected to a drive unit 4 through a transmission unit 3. A swing bracket 5 is provided on the rotating unit 2, and a dressing unit 6 is arranged in the middle of the swing bracket 5. S1. The U-shaped support 1 is provided with a first support circular hole 11 and a second support circular hole 12 on both sides respectively. During processing, the inner diameter of the first support circular hole 11 is made smaller than the inner diameter of the second support circular hole 12. S2. Take a steel shaft, the diameter of which is the same as the inner diameter of the first support hole 11; S3. Insert the steel shaft into the first support hole 11 and the second support hole 12, and apply a release agent to the end of the steel shaft near the second support hole 12; S4. Place the U-shaped support 1 with the steel shaft inserted vertically, so that one side of the first support hole 11 is above the second support hole 12. Since the inner diameter of the first support hole 11 is the same as the diameter of the steel shaft, and the inner diameter of the first support hole 11 is smaller than the inner diameter of the second support hole 12, there will be a gap between the second support hole 12 and the steel shaft. Fill the gap between the steel shaft and the second support hole 12 with high-strength adhesive. After the adhesive solidifies, remove the steel shaft. At this time, the coaxiality of the first support hole 11 and the second support hole 12 is relatively high.

[0018] Specifically, the grinding wheel dresser is equipped with a U-shaped support 1. During processing, the inner diameter of the first support hole 11 is intentionally made smaller than the inner diameter of the second support hole 12 to ensure high-precision coaxiality in subsequent steps by fixing with a steel shaft and high-strength adhesive. The steel shaft is inserted into the first support hole 11 and the second support hole 12 of the U-shaped support 1. The U-shaped support 1 with the inserted steel shaft is placed vertically, with the first support hole 11 positioned above the second support hole 12. Vertical placement of the U-shaped support 1 and the steel shaft reduces deviations caused by gravity, thereby improving the coaxiality accuracy of the first support hole 11 and the second support hole 12. Furthermore, it makes it easier to observe and control the flow of the adhesive during filling. As the adhesive solidifies, it fixes the steel shaft in the second support hole 12. Simultaneously, because the steel shaft is precisely inserted into the first support hole... The circular hole 11 ensures high coaxiality between the first support circular hole 11 and the second support circular hole 12. After the glue has completely solidified, the steel shaft is removed. At this point, due to the fixing effect of the glue and the calibration effect of the steel shaft, the coaxiality between the first support circular hole 11 and the second support circular hole 12 has reached a high precision. By using the steel shaft for calibration, the precision of the dresser can be significantly improved, enabling it to meet the requirements of high-precision machining. The method of using the steel shaft and filling with high-strength glue is relatively simple and low-cost, avoiding complex machining processes, thereby reducing production costs and time.

[0019] like Figure 3 , 4 As shown, the trimming unit 6 includes a diamond pen 61, which is mounted on a threaded rod 62. A scale sleeve 63 is fitted over the threaded rod 62, and the threaded rod 62 and the scale sleeve 63 are connected by threads. A bushing 64 is fitted over the scale sleeve 63, 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. Multiple 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 on the inner side of the guide sleeve 67. A guide groove 69 is provided on the threaded rod 62.

[0020] Specifically, the servo-driven circular arc grinding wheel dresser is powered by the drive unit 4, which is transmitted to the rotary unit 2 via the transmission unit 3. Upon receiving power, the rotary unit 2 drives the swing bracket 5 to rotate on both sides of the U-shaped support 1. The movement of the swing bracket 5 further drives the dressing unit 6 to move, allowing it to follow 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 mounted on the threaded rod 62, and its vertical position can be precisely adjusted by rotating the scale sleeve 63. During adjustment, since the scale sleeve 63 and the threaded rod 62 are connected by threads, there is a thread gap. To eliminate this gap, multiple compression springs 66 arranged side-by-side are used, providing a stable preload for the scale sleeve 63 and the threaded rod 62. Once the diamond pen 61 reaches the desired position and locks in place, the grinding wheel can be dressed. During the dressing process, the diamond pen 61 precisely dresses the grinding wheel according to a predetermined trajectory and speed until the desired shape and precision are achieved. The threaded connection between the scale sleeve 63 and the threaded rod 62 allows for precise control and rapid adjustment of the diamond pen 61's position by rotating the scale sleeve 63. Multiple parallel compression springs 66 provide stable preload to the scale sleeve 63 and the threaded rod 62, thereby eliminating thread clearance and improving the accuracy of the diamond pen 61. The multiple parallel compression springs 66 also ensure that the pressure is evenly distributed along the circumference of the scale sleeve 63 and the threaded rod 62, ensuring uniform force distribution and guaranteeing the stability and accuracy of the diamond pen's operation.

[0021] like Figure 4 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.

[0022] Specifically, the locking nut 65 is locked onto the scale sleeve 63. When the scale sleeve 63 is rotated, it rotates together with the locking nut 65. The guide sleeve 67 supports and guides the threaded rod 62, while the scale sleeve 63 is used to connect to the threaded rod 62 and adjust its position. Both have the same inner diameter, ensuring that the threaded rod 62 does not experience additional resistance or friction during movement, thus maintaining its smooth and accurate movement and improving the overall precision of the dresser. The washer 610 ensures that the compression spring 66 maintains a stable preload when under pressure, ensuring that the dressing unit 6 is stable and reliable in its adjusted position.

[0023] like Figure 4 As shown, 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.

[0024] 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 and not rotate, thus restricting the rotational freedom of the threaded rod 62 and allowing it to move linearly in the axial direction only. By setting the guide groove 69 on the side surface of the threaded rod 62, it can easily cooperate with the cylindrical pin 68 to achieve precise guidance and positioning functions and improve the dressing accuracy.

[0025] like Figure 3 As shown, the drive unit 4 includes a servo motor 41, which is connected to a reducer 42. The reducer 42 is connected to the transmission unit 3 via a coupling 43.

[0026] 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. The driving force of the servo motor 41, after being reduced and amplified by the reducer 42, is transmitted to the transmission unit 3 via the coupling 43, thereby driving the entire servo circular arc grinding wheel dresser to work.

[0027] like Figure 3 As shown, the rotary unit 2 includes a rotary shaft 21, on which a bearing 22 is provided.

[0028] Specifically, when the 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 arc grinding wheel dresser for rotation angle and accuracy during operation.

[0029] like Figure 3 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.

[0030] Specifically, the transmission unit 3 consists of a driving pulley 31, a driven pulley 32, and a conveyor belt 33 surrounding both. The driving pulley 31 is tightly connected to the drive unit 4 via a coupling 43. The conveyor belt 33 serves as the medium for transmitting power, transferring 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 rotary shaft 21 connected to it, thereby realizing the transmission of power and the driving of the rotary shaft 21. A protective cover 31 is provided on the outside of the transmission unit 3 for protection.

[0031] like Figure 2 As shown, a support box 13 is provided below the U-shaped support seat 1, and the drive unit 4 is placed inside the support box 13.

[0032] Specifically, a support box 13 is provided below the U-shaped support base 1, which serves to stabilize and support the device. Placing the drive unit 4 inside the support box 13 not only effectively protects the drive unit 4, but also makes the entire device structure compact and stable.

[0033] The beneficial effects of this application compared to the prior art are as follows: This application discloses a method for ensuring the accuracy of a grinding wheel dresser. The dresser is equipped with a U-shaped support 1, and a first support circular hole 11 and a second support circular hole 12 are respectively provided on both sides of the U-shaped support 1. During processing, the inner diameter of the first support circular hole 11 is made smaller than the inner diameter of the second support circular hole 12. A steel shaft is used, and the diameter of the steel shaft is the same as the inner diameter of the first support circular hole 11. The steel shaft is inserted into the first support circular hole 11 and the second support circular hole 12, and a release agent is applied to the end of the steel shaft near the second support circular hole 12. The U-shaped support 1 with the inserted steel shaft is placed vertically, so that one side of the first support circular hole 11 is above the second support circular hole 12. Since the inner diameter of the first support circular hole 11 is the same as the diameter of the steel shaft, the first support circular hole 12... The inner diameter of the first support hole 11 is smaller than the inner diameter of the second support hole 12. Therefore, there will be a gap between the second support hole 12 and the steel shaft. High-strength adhesive is filled into the gap between the steel shaft and the second support hole 12. After the adhesive solidifies, the steel shaft is removed. At this time, the coaxiality of the first support hole 11 and the second support hole 12 is relatively high. Due to the fixing effect of the adhesive and the calibration effect of the steel shaft, the coaxiality of the first support hole 11 and the second support hole 12 has reached a high precision. By using the steel shaft for calibration, the precision of the dresser can be significantly improved, enabling it to meet the requirements of high-precision machining. The method of using the steel shaft and filling with high-strength adhesive is relatively simple and low-cost, avoiding complex machining processes, thereby reducing production costs and time.

[0034] The position of the diamond pen 61 is adjusted by rotating the scale sleeve 63, achieving precise control and rapid adjustment of the diamond pen 61's position; multiple compression springs 66 arranged side by side provide stable preload to the scale sleeve 63 and threaded rod 62, thereby eliminating thread clearance 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 circumference of the scale sleeve 63 and threaded rod 62, making it uniformly stressed, thereby ensuring the stability and accuracy of the diamond pen's operation.

[0035] 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.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A method for ensuring the accuracy of a grinding wheel dresser, wherein the dresser is provided with a U-shaped support (1), and rotating units (2) are rotatably provided on both sides of the U-shaped support (1). The rotating units (2) are connected to a drive unit (4) through a transmission unit (3). A swing bracket (5) is provided on the rotating unit (2), and a dressing unit (6) is provided in the middle of the swing bracket (5). The method is characterized in that: S1. The U-shaped support seat (1) is provided with a first support circular hole (11) and a second support circular hole (12) on both sides respectively. During processing, the inner diameter of the first support circular hole (11) is made smaller than the inner diameter of the second support circular hole (12). S2. Take a steel shaft, the diameter of which is the same as the inner diameter of the first support hole (11); S3. Insert the steel shaft into the first support hole (11) and the second support hole (12), and apply a release agent to the end of the steel shaft near the second support hole (12); S4. Place the U-shaped support (1) into which the steel shaft is inserted vertically, so that one side of the first support hole (11) is above the second support hole (12). Since the inner diameter of the first support hole (11) is the same as the diameter of the steel shaft, and the inner diameter of the first support hole (11) is smaller than the inner diameter of the second support hole (12), there will be a gap between the second support hole (12) and the steel shaft. Fill the gap between the steel shaft and the second support hole (12) with high-strength adhesive. After the adhesive solidifies, remove the steel shaft. At this time, the coaxiality of the first support hole (11) and the second support hole (12) is relatively high.

2. The method for ensuring the accuracy of a grinding wheel dresser according to claim 1, characterized in that, The trimming unit (6) includes a diamond pen (61), which is mounted on a threaded rod (62). A scale sleeve (63) is fitted around the threaded rod (62). The threaded rod (62) and the scale sleeve (63) are connected by threads. A bushing (64) is fitted around the scale sleeve (63). The bushing (64) is fixedly mounted on the swing bracket (5) by bolt assembly. A locking nut (65) is provided at the bottom of the scale sleeve (63). The locking nut (65) is located below the bushing (64). Multiple 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). A cylindrical pin (68) is provided inside the guide sleeve (67). A guide groove (69) is provided on the threaded rod (62).

3. The method for ensuring the accuracy of a grinding wheel dresser according to claim 2, characterized in that, The guide sleeve (67) and the scale sleeve (63) have the same inner diameter, and a washer (610) is provided between the compression spring (66) and the locking nut (65).

4. The method for ensuring the accuracy of a grinding wheel dresser according to claim 2, characterized in that, 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).

5. The method for ensuring the accuracy of a grinding wheel dresser according to claim 1, characterized in that, The drive unit (4) includes a servo motor (41), which is connected to a reducer (42). The reducer (42) is connected to the transmission unit (3) via a coupling (43).

6. The method for ensuring the accuracy of a grinding wheel dresser according to claim 5, characterized in that, The rotary unit (2) includes a rotary shaft (21) on which a bearing (22) is provided.

7. The method for ensuring the accuracy of a grinding wheel dresser according to claim 6, characterized in that, 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 rotating shaft (21).

8. The method for ensuring the accuracy of a grinding wheel dresser according to claim 1, characterized in that, A support box (13) is provided below the U-shaped support seat (1), and the drive unit (4) is placed inside the support box (13).

9. The method for ensuring the accuracy of a grinding wheel dresser according to claim 1, characterized in that, The transmission unit (3) is provided with a protective cover (7) on its outside.

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