Grinding wheel dressing tool convenient to install

Abstract

The utility model provides a grinding wheel dressing tool convenient to install. The grinding wheel dressing tool convenient to install comprises a driving main shaft, a driving structure, a rotating shaft positioning structure, a bearing assembly, two shaft sleeve positioning structures, two elastic positioning devices and two locking nuts. The driving structure and the rotating shaft positioning structure are symmetrically arranged at the front end part and the rear end part of the driving main shaft and are detachably connected with the driving main shaft; the bearing assembly and the two elastic positioning devices are arranged on the driving main shaft, the two elastic positioning devices are symmetrically arranged on the front side and the rear side of the bearing assembly, and the bearing assembly is located in the middle of the driving main shaft. According to the grinding wheel dressing tool convenient to install, the problem that due to the fact that a diamond roller installation structure in the related technology is poor in matching precision, balance weight deviation needs to be recalibrated after multiple times of disassembly and assembly is solved.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, and in particular relates to a grinding wheel dressing tool that is easy to install. Background Technology

[0002] Diamond rollers are commonly used as grinding wheel dressing tools in related technologies. By fixing diamond particles onto the roller surface, the shape, accuracy, and cutting performance of the grinding wheel are restored through contact dressing. The core principle is to replicate the roller's contour onto the grinding wheel surface through the synchronous movement of the roller and the grinding wheel, thereby achieving precision forming of the workpiece. The diamond roller is mounted on the dressing device of the grinding machine. Through rotation, it contacts the grinding wheel and generates a cutting action, removing the passivation layer and blockages from the grinding wheel surface. The clearance between the diamond roller's inner bore and the spindle must be strictly controlled within 2-4 μm; otherwise, radial runout will exceed tolerance during dressing. During installation, the spindle end face and outer diameter runout must be calibrated multiple times using a dial indicator. Due to the poor fit accuracy of the diamond roller mounting structure in related technologies, multiple disassemblies and reassemblies are required, leading to the need for recalibration due to counterweight misalignment. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] An easy-to-install grinding wheel dressing tool includes a drive spindle, a drive structure, a shaft positioning structure, a bearing assembly, two bushing positioning structures, two elastic positioning devices, and two locking nuts.

[0006] The drive structure and the rotating shaft positioning structure are symmetrically arranged at the front and rear ends of the drive spindle, and both the drive structure and the rotating shaft positioning structure are detachably connected to the drive spindle.

[0007] The bearing assembly and the two elastic positioning devices are both mounted on the drive spindle. The two elastic positioning devices are symmetrically arranged on the front and rear sides of the bearing assembly, and the bearing assembly is located in the middle of the drive spindle.

[0008] The elastic positioning device is detachably connected to the drive spindle. The inner end of the elastic positioning device is engaged with the drive spindle through a bushing positioning structure, and the outer end of the elastic positioning device is connected and fixed to the drive spindle through a locking nut. The elastic positioning device is used to drive the diamond roller.

[0009] Furthermore, the elastic positioning device includes a drive plate, a first sleeve, and multiple elastic positioning components. One end of the first sleeve is detachably connected to the bushing positioning structure, and the other end of the first sleeve is provided with the drive plate. The multiple elastic positioning components are evenly arranged circumferentially on the first sleeve. The elastic positioning components can cooperate with the grooves preset on the inner wall of the diamond roller. The outer edge of the drive plate is provided with a first tooth structure, and the inner wall of the diamond roller is provided with a first tooth groove that can cooperate with the first tooth structure.

[0010] Furthermore, the elastic positioning component includes a positioning plate and a plurality of compression springs. The outer wall of the first sleeve is provided with a strip groove, and the plurality of compression springs are arranged in the strip groove. The top of the compression springs is connected to the positioning plate.

[0011] Furthermore, the bushing positioning structure includes a second sleeve and a limiting baffle. The second sleeve is connected to the drive spindle through multiple pins. The limiting baffle is disposed at the end of the second sleeve. The outer wall of the second sleeve is provided with a second tooth structure. The inner wall of the first sleeve is provided with a second tooth groove that can cooperate with the second tooth structure.

[0012] Furthermore, the bearing assembly includes a positioning bushing and four bearings. The drive spindle has an annular groove in the middle, and the four bearings are symmetrically arranged in the annular groove. The positioning bushing is located in the middle of the annular groove.

[0013] Furthermore, the drive structure comprises a toothed shaft and a first fork-shaped connector, with the inner end face of the toothed shaft connected to the first fork-shaped connector.

[0014] Furthermore, the rotating shaft positioning structure includes a rotating shaft and a second fork-shaped connector, with the inner end face of the rotating shaft connected to the second fork-shaped connector.

[0015] Compared with existing technologies, the grinding wheel dressing tool described in this utility model, which is easy to install, has the following advantages:

[0016] 1. Multiple compression springs in the elastic positioning component are evenly distributed in the strip groove of the first sleeve. The elastic extension and contraction of the springs adapt to the dimensional deviation of the inner sleeve groove of the diamond roller, avoiding the jamming or loosening problems caused by excessively tight or loose gaps in traditional installation.

[0017] 2. The outer edge of the drive plate of the first sleeve is designed with a first toothed structure, which meshes with the first toothed groove of the inner sleeve of the roller to achieve precise circumferential positioning and prevent rotational offset during installation. At the same time, it enhances torque transmission capability, disperses load through tooth surface contact, reduces local stress concentration, and avoids the risk of shear failure of traditional flat key connections.

[0018] 3. The flexible positioning device and the drive spindle are quickly connected via pins and the toothed structure of the second sleeve (second toothed groove and second toothed structure). Disassembly only requires releasing the locking nut, shortening replacement time. The two flexible positioning devices are symmetrically distributed on both sides of the bearing assembly. During installation, synchronous pressure is applied by tightening the locking nut to automatically balance the axial preload, reducing manual calibration steps. The spindle end face runout is within a controllable range, superior to traditional single-sided fixed structures. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of an easy-to-install grinding wheel dressing tool according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram showing the distribution structure of the two elastic positioning devices described in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the elastic positioning device structure described in an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the bushing positioning structure according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the bearing assembly structure according to an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Drive structure; 110. Locking nut; 120. Rotary shaft positioning structure; 200. Diamond roller; 210. Inner sleeve; 300. Drive spindle; 410. Bearing; 420. Positioning bushing; 500. Elastic positioning device; 510. First sleeve; 520. Drive plate; 530. Positioning plate; 540. Second sleeve; 550. Limiting baffle. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] An easy-to-install grinding wheel dressing tool, such as Figure 1 As shown, the system includes a drive spindle 300, a drive structure 100, a shaft positioning structure 120, a bearing assembly, two bushing positioning structures, two elastic positioning devices 500, and two locking nuts 110. The drive structure 100 and the shaft positioning structure 120 are symmetrically arranged at the front and rear ends of the drive spindle 300, and both the drive structure 100 and the shaft positioning structure 120 are detachably connected to the drive spindle 300. The drive structure 100 consists of a toothed shaft and a first fork-shaped connector, with the inner end face of the toothed shaft connected to the first fork-shaped connector. The shaft positioning structure 120 includes a shaft and a second fork-shaped connector, with the inner end face of the shaft connected to the second fork-shaped connector.

[0032] The bearing assembly and two elastic positioning devices 500 are both mounted on the drive spindle 300. The two elastic positioning devices 500 are symmetrically arranged on the front and rear sides of the bearing assembly, and the bearing assembly is located in the middle of the drive spindle 300. The bearing assembly includes a positioning bushing 420 and four bearings 410. An annular groove is provided in the middle of the drive spindle 300, and the four bearings 410 are symmetrically arranged in the annular groove. The positioning bushing 420 is located in the middle of the annular groove.

[0033] The elastic positioning device 500 is detachably connected to the drive spindle 300. The inner end of the elastic positioning device 500 engages with the drive spindle 300 via a bushing positioning structure, while the outer end is fixed to the drive spindle 300 via a locking nut 110. The elastic positioning device 500 drives the diamond roller 200. The elastic positioning device 500 and the drive spindle 300 are quickly connected via a pin and the toothed structure of the second sleeve 540 (second toothed groove and second toothed structure). Disassembly only requires releasing the locking nut, shortening replacement time. The two elastic positioning devices 500 are symmetrically distributed on both sides of the bearing 410 assembly. During installation, synchronous pressure is applied via the locking nut 110 to automatically balance the axial preload, reducing manual calibration steps. The spindle end face runout is within a controllable range, superior to traditional single-sided fixed structures.

[0034] like Figure 3 As shown, the elastic positioning device 500 includes a drive plate 520, a first sleeve 510, and multiple elastic positioning components. One end of the first sleeve 510 is detachably connected to the bushing positioning structure, and the other end of the first sleeve 510 is provided with the drive plate 520. Multiple elastic positioning components are evenly arranged circumferentially on the first sleeve 510. The elastic positioning components can cooperate with the pre-set grooves on the inner wall of the inner sleeve 210 of the diamond roller 200. The outer edge of the drive plate 520 is provided with a first tooth structure, and the inner wall of the inner sleeve 210 of the diamond roller 200 is provided with a first tooth groove that can cooperate with the first tooth structure. The elastic positioning component includes a positioning plate 530 and multiple compression springs. The outer wall of the first sleeve 510 is provided with a strip groove, and multiple compression springs are arranged in the strip groove. The tops of the compression springs are connected to the positioning plate 530. Multiple compression springs in the elastic positioning assembly are evenly distributed within the strip groove of the first sleeve 510. The elastic expansion and contraction of the springs adapt to dimensional deviations in the groove of the inner sleeve 210 of the diamond roller 200, avoiding jamming or loosening problems caused by excessively tight or loose gaps in traditional installations. The outer edge of the drive plate 520 of the first sleeve 510 is designed with a first toothed structure, which meshes with the first toothed groove of the inner sleeve 210 of the roller, achieving precise circumferential positioning and preventing rotational offset during installation. Simultaneously, it enhances torque transmission capability, disperses load through tooth surface contact, reduces local stress concentration, and avoids the shear failure risk of traditional flat key connections.

[0035] The bushing positioning structure includes a second sleeve 540 and a limiting baffle 550. The second sleeve 540 is connected to the drive spindle 300 by multiple pins. The limiting baffle 550 is located at the end of the second sleeve 540. The outer wall of the second sleeve 540 is provided with a second tooth structure. The inner wall of the first sleeve 510 is provided with a second tooth groove that can cooperate with the second tooth structure.

[0036] How this example works

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dressing tool for a mounted abrasive wheel, the dressing tool being characterized by: It includes a drive spindle (300), a drive structure (100), a shaft positioning structure (120), a bearing assembly, two bushing positioning structures, two elastic positioning devices (500), and two locking nuts (110); The drive structure (100) and the rotating shaft positioning structure (120) are symmetrically arranged at the front and rear ends of the drive spindle (300), and both the drive structure (100) and the rotating shaft positioning structure (120) are detachably connected to the drive spindle (300). The bearing assembly and the two elastic positioning devices (500) are both mounted on the drive spindle (300). The two elastic positioning devices (500) are symmetrically arranged on the front and rear sides of the bearing assembly, and the bearing assembly is located in the middle of the drive spindle (300). The elastic positioning device (500) is detachably connected to the drive spindle (300). The inner end of the elastic positioning device (500) cooperates with the drive spindle (300) through a bushing positioning structure. The outer end of the elastic positioning device (500) is connected and fixed to the drive spindle (300) through a locking nut (110). The elastic positioning device (500) is used to drive the diamond roller (200).

2. The truing tool for a mounted abrasive wheel of claim 1, wherein: The elastic positioning device (500) includes a drive plate (520), a first sleeve (510), and a plurality of elastic positioning components. One end of the first sleeve (510) is detachably connected to the bushing positioning structure, and the other end of the first sleeve (510) is provided with the drive plate (520). The plurality of elastic positioning components are evenly arranged on the first sleeve (510) circumferentially. The elastic positioning components can cooperate with the grooves preset on the inner wall of the inner sleeve (210) of the diamond roller (200). The outer edge of the drive plate (520) is provided with a first tooth structure, and the inner wall of the inner sleeve (210) of the diamond roller (200) is provided with a first tooth groove that can cooperate with the first tooth structure.

3. A dressing tool for a mounted abrasive wheel according to claim 2, wherein: The elastic positioning component includes a positioning plate (530) and a plurality of compression springs. The outer wall of the first sleeve (510) is provided with a strip groove, and the plurality of compression springs are arranged in the strip groove. The top of the compression springs is connected to the positioning plate (530).

4. The truing tool of claim 2, wherein: The bushing positioning structure includes a second sleeve (540) and a limiting baffle (550). The second sleeve (540) is connected to the drive spindle (300) by a plurality of pins. The limiting baffle (550) is disposed at the end of the second sleeve (540). The outer wall of the second sleeve (540) is provided with a second tooth structure. The inner wall of the first sleeve (510) is provided with a second tooth groove that can cooperate with the second tooth structure.

5. A dressing tool for abrasive wheels according to any one of claims 1 to 4, characterized in that: The bearing assembly includes a positioning bushing (420) and four bearings (410). The drive spindle (300) has an annular groove in the middle, and the four bearings (410) are symmetrically arranged in the annular groove. The positioning bushing (420) is located in the middle of the annular groove.

6. A dressing tool for abrasive wheels according to claim 5, characterized in that: The driving structure (100) is a toothed shaft and a first fork joint, and the inner end surface of the toothed shaft is connected with the first fork joint.

7. The truing tool of claim 5, wherein: The rotating shaft positioning structure (120) comprises a rotating shaft and a second fork joint, and the inner end surface of the rotating shaft is connected with the second fork joint.

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