Grinding wheel dresser

Abstract

The utility model provides a grinding wheel dresser, which relates to the technical field of grinding wheel dressing and comprises a bottom plate, a fixed table, a movable table, a fixed groove and a main shaft, arc-shaped grooves are respectively arranged on the fixed table and the movable table, bearings are respectively sleeved at two ends of the main shaft, and shaft sleeves are sleeved on the outer surfaces of the bearings. The spindle sleeves at the two ends of the spindle are located in the arc-shaped grooves in the fixed table and the movable table respectively, a first clamping block is fixedly connected to the arc-shaped groove of the fixed table, a second clamping block is fixedly connected to the arc-shaped groove of the movable table, and the second clamping block and the movable table are fixed to the fixed groove through bolts. The position of the movable table is adjusted, so that the shaft sleeves at the two ends of the spindle can be installed in the arc-shaped grooves in the fixed table and the movable table correspondingly, the positions of the bearings and the shaft sleeves do not need to be adjusted, the spindle installation difficulty is lowered, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel dressing technology, specifically a grinding wheel dresser. Background Technology

[0002] When grinding thread rolling dies, grinding is performed using a grinding wheel. After a period of use, the surface texture of the grinding wheel will gradually wear away due to grinding. When it wears down to a certain extent, the grinding effect of the grinding wheel deteriorates, requiring a grinding wheel dresser to repair the grinding wheel and restore the surface texture. This ensures the grinding wheel has a good grinding effect and extends its service life. The grinding wheel dresser includes a spindle, rollers, bearings, bushings, and two support plates for supporting the spindle. During installation, the rollers are first installed onto the spindle, then the bearings are installed at both ends of the spindle, and finally the bushings are installed on the outside of the bearings. During subsequent installation, the bushings are fixed to the support plates, allowing the spindle and rollers to rotate between the two support plates. Because the installation positions of the bearings and bushings are difficult to be precise, when the length between the two bushings is greater than or less than the distance between the two support plates, the bearings and bushings need to be adjusted simultaneously to ensure that the bushings are accurately installed on the support plates. However, adjusting the bearings and bushings is quite troublesome, resulting in low installation efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a grinding wheel dresser that aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The grinding wheel dresser includes a base plate, on which a fixed platform and a movable platform are provided. The lower end of the movable platform is shaped like a trapezoid. Fixed grooves are respectively provided on both sides of the upper surface of the base plate. The lower end of the movable platform is located between the two fixed grooves and can move along the fixed grooves on the base plate. Arc-shaped grooves are respectively provided on the fixed platform and the movable platform. The device also includes a spindle, on which a toothed wheel is mounted. Bearings are respectively fitted at both ends of the spindle. Bushings are fitted on the outer surface of the bearings. The bushings at both ends of the spindle are respectively located in the arc-shaped grooves on the fixed platform and the movable platform. A first clamping block is fixedly connected to the arc-shaped groove of the fixed platform, and a second clamping block is fixedly connected to the arc-shaped groove of the movable platform. The second clamping block and the movable platform are fixed to the fixed grooves by bolts.

[0005] Preferably, a circular through groove is provided on the fixed platform, and a secondary shaft is rotatably connected inside the through groove. The secondary shaft is connected to the main shaft through a coupling.

[0006] Preferably, a reinforcing plate for supporting the bushing is provided on one side of the fixed platform.

[0007] Preferably, heat dissipation grooves are provided on both sides of the fixed platform.

[0008] The beneficial effects of this utility model are:

[0009] This device can adjust the position of the movable table according to the position of the bearings and bushings on the spindle, so that the bushings at both ends of the spindle can be installed into the arc grooves on the fixed table and the movable table respectively, without the need to adjust the position of the bearings and bushings, thereby reducing the installation difficulty of the spindle and improving the installation efficiency. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0011] Figure 2 This is a structural schematic diagram of another specific embodiment of the present invention.

[0012] Figure 3 This is a cross-sectional view of a specific embodiment of the present invention.

[0013] In the diagram: 1. Base plate; 2. Fixed platform; 3. Movable platform; 4. Fixed groove; 5. Main shaft; 6. Toothed wheel; 7. Bearing; 8. Bushing; 9. First clamping block; 10. Second clamping block; 11. Countershaft; 12. Coupling; 13. Reinforcing plate; 14. Heat dissipation groove. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0015] like Figure 1-3 As shown, a grinding wheel dresser includes a base plate 1, on which a fixed platform 2 and a movable platform 3 are provided. The lower end of the movable platform 3 is shaped like a trapezoid. Fixed grooves 4 are respectively provided on both sides of the upper surface of the base plate 1. The lower end of the movable platform 3 is located between the two fixed grooves 4 and can move along the fixed grooves 4 on the base plate 1. Arc-shaped grooves are respectively opened on the fixed platform 2 and the movable platform 3. The device also includes a spindle 5, on which a toothed wheel 6 is installed. Bearings 7 are respectively sleeved at both ends of the spindle 5. Bushings 8 are sleeved on the outer surface of the bearings 7. The bushings 8 at both ends of the spindle 5 are respectively located in the arc-shaped grooves on the fixed platform 2 and the movable platform 3. A first clamping block 9 is fixedly connected to the arc-shaped groove of the fixed platform 2, and a second clamping block 10 is fixedly connected to the arc-shaped groove of the movable platform 3. The second clamping block 10 and the movable platform 3 are fixed to the fixed grooves 4 by bolts.

[0016] During installation, first, the roller 6 is fixed to the main shaft 5. Then, bearings 7 are installed at both ends of the main shaft 5. Next, bushings 8 are installed on the bearings 7. Then, bushings 8 at one end of the main shaft 5 are placed into the arc groove on the fixed platform 2. When the position of bushing 8 at the other end of the main shaft 5 does not match the position of the arc groove on the movable platform 3, the position of the movable platform 3 is adjusted to move it on the base plate 1. When bushing 8 can be placed into the arc groove on the movable platform 3, the position of the movable platform 3 no longer changes. Then, bushings 8 at both ends of the main shaft 5 are placed into the arc grooves on the fixed platform 2 and the movable platform 3 respectively. Then, the first clamping block 9 is fixed on the fixed platform 2, and the second clamping block 10 is fixed on the movable platform 3, thus completing the fixing of the two bushings 8. During the process of fixing the second clamping block 10 to the movable platform 3, the second clamping block 10 and the movable platform 3 are directly fixed to the fixed groove 4 with bolts.

[0017] During grinding, the X-axis, Y-axis, and Z-axis strokes of the grinding machine move the grinding wheel above the toothed gear 6. Then, the Z-axis stroke moves the grinding wheel downwards. Once the grinding wheel contacts the toothed gear 6, it stops moving downwards and the grinding motor drives the grinding wheel to rotate at a low speed. As the grinding wheel rotates, the friction between the grinding wheel and the toothed gear 6 causes the toothed gear 6 to rotate synchronously. During the rotation, the Z-axis stroke drives the grinding wheel to continue pressing against the toothed gear 6. Through the pressing and friction between the grinding wheel and the toothed gear 6, the surface of the grinding wheel regenerates texture, thus achieving the dressing of the grinding wheel.

[0018] Furthermore, a circular through slot is provided on the fixed table 2, and a secondary shaft 11 is rotatably connected inside the through slot. The secondary shaft 11 is connected to the main shaft 5 through a coupling 12. After the secondary shaft 11 and the main shaft 5 are connected through the coupling 12, a servo motor can be connected to the secondary shaft 11. The servo motor drives the secondary shaft 11 and the main shaft 5 to rotate, thereby driving the toothed wheel 6 to rotate. When the toothed wheel 6 rotates, the Z-axis stroke drives the grinding wheel to squeeze the toothed wheel 6, driving the grinding wheel to rotate. In this case, the grinding motor does not need to rotate, but the grinding wheel can still be dressed.

[0019] Furthermore, a reinforcing plate 13 is provided on one side of the fixed platform 2 to support the bushing 8, thereby improving the stability of the support for the spindle 5.

[0020] Furthermore, heat dissipation grooves 14 are provided on both sides of the fixed platform 2 to improve the heat dissipation capacity of the fixed platform 2, and when debris or other debris enters the fixed platform 2, it is also convenient to clean out the debris inside the fixed platform 2 through the heat dissipation grooves 14.

[0021] The device can adjust the position of the movable table 3 according to the position of the bearing 7 and the bushing 8 on the spindle 5, so that the bushings 8 at both ends of the spindle 5 can be installed into the arc grooves on the fixed table 2 and the movable table 3 respectively, without the need to adjust the position of the bearing 7 and the bushing 8, thereby reducing the installation difficulty of the spindle 5 and improving the installation efficiency.

[0022] In the description of this utility model, 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 utility model based on the specific circumstances.

Claims

1. A grinding wheel dresser, characterized in that, The system includes a base plate, on which a fixed platform and a movable platform are provided. The lower end of the movable platform is shaped like a trapezoid. Fixed grooves are provided on both sides of the upper surface of the base plate. The lower end of the movable platform is located between the two fixed grooves and can move along the fixed grooves on the base plate. Arc-shaped grooves are provided on both the fixed platform and the movable platform. The system also includes a main shaft, on which a toothed wheel is mounted. Bearings are fitted at both ends of the main shaft, and bushings are fitted on the outer surface of the bearings. The bushings at both ends of the main shaft are located in the arc-shaped grooves on the fixed platform and the movable platform, respectively. A first clamping block is fixedly connected to the arc-shaped groove of the fixed platform, and a second clamping block is fixedly connected to the arc-shaped groove of the movable platform. The second clamping block and the movable platform are fixed to the fixed grooves by bolts.

2. The grinding wheel dresser according to claim 1, characterized in that, A circular through slot is provided on the fixed platform, and a secondary shaft is rotatably connected inside the through slot. The secondary shaft is connected to the main shaft through a coupling.

3. The grinding wheel dresser according to claim 2, characterized in that, A reinforcing plate for supporting the bushing is provided on one side of the fixed platform.

4. The grinding wheel dresser according to claim 2, characterized in that, Heat dissipation slots are provided on both sides of the fixed platform.

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