A flattening device for a near-spherical lapping platform

Abstract

The utility model belongs to the technical field of grinding, and relates to a flattening device of near-spherical grinding platform, including grinding platform, the grinding platform on setting the near-spherical grinding disc of flattening, its characterized in that, still including support frame and annular flattening disc, support frame one end setting arc face, the other end fixed on grinding platform, arc face both ends respectively setting bearing, annular flattening disc external shape face and arc face adaptation, and with bearing rotation cooperation, annular flattening disc inside setting grinding wheel and counterweight, grinding wheel and the near-spherical grinding disc of flattening adhere to, can under the condition that grinding disc is not disassembled, can fast, high accuracy flattening near-spherical grinding disc.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology and relates to a device that is simple to operate and has the function of smoothing a near-spherical grinding platform. Background Technology

[0002] In traditional grinding processes, leveling the grinding platform is a crucial step, as its effectiveness directly impacts grinding quality and efficiency. Existing grinding equipment can level convex or concave grinding platforms. The specific leveling steps are as follows: a) Clean and remove the grinding disc screws, such as Figure 6 As shown b) Install hoisting fixtures, such as... Figure 7 As shown, the tooling is mounted on the grinding disc as follows: Figure 8 As shown.

[0003] c) Hoisting and moving the grinding disc to the machining center worktable d) Milling the upper surface of the grinding disc in the machining center e) Hoisting and moving the grinding disc to the grinding platform f) Remove hoisting fixtures g) Align the grinding disc h) Install grinding disc screws i) Fine grinding disc For near-spherical grinding platforms, existing grinding devices cannot level them. If existing devices are used to level these platforms, the grinding disc (weighing approximately 100kg) needs to be removed from the platform and transported by hoist. The surface of the disc needs to be milled using a machining center, followed by another hoisting operation. Reinstalling the disc requires 2 hours of alignment. Furthermore, since the milling accuracy is insufficient, fine finishing using the equipment's own tooling is still necessary, which is time-consuming, labor-intensive, complex, and costly. Therefore, it is necessary to design a new leveling device for near-spherical grinding platforms to simplify the leveling process and reduce costs. Utility Model Content

[0004] The purpose of this utility model is to provide a leveling device for near-spherical grinding platforms that is simple to operate, low in cost, and has high leveling accuracy.

[0005] Technical solution: A leveling device for a near-spherical grinding platform includes a grinding platform on which a near-spherical grinding disc to be leveled is placed. The device also includes a support frame and an annular leveling disc. One end of the support frame has an arc-shaped surface, and the other end is fixed to the grinding platform. Bearings are respectively installed at both ends of the arc-shaped surface. The outer surface of the annular leveling disc is adapted to the arc-shaped surface and rotates with the bearings. A grinding wheel and a counterweight are installed inside the annular leveling disc, and the grinding wheel is in contact with the near-spherical grinding disc to be leveled.

[0006] Furthermore, the bearing is connected to the support frame via bearing screws.

[0007] Furthermore, counterweight screws are installed on the upper surface of the counterweight.

[0008] Furthermore, the grinding wheel is fixed inside the annular dressing disc by a key.

[0009] Furthermore, a groove a is provided on the outer circular surface of the grinding wheel, and a groove b corresponding to the position of the groove a is provided on the inner circular surface of the annular dressing disc. The groove a and the groove b are connected by a key, so that the grinding wheel is fixed inside the annular dressing disc.

[0010] Furthermore, a U-shaped groove is provided on the support frame, and the support screws fix the support frame to the grinding platform through the U-shaped groove.

[0011] Beneficial effects This invention provides a leveling device for near-spherical grinding platforms that is simple to operate, low in cost, and has high leveling accuracy. It can quickly and accurately level near-spherical grinding discs without disassembling the grinding disc. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a rough repair diagram. Figure 3 This is a schematic diagram of a grinding disc. Figure 4 This is a detailed schematic diagram. Figure 5 This is a schematic diagram of the counterweight. Figure 6 This is a diagram illustrating the disassembly of the grinding disc. Figure 7 This is a schematic diagram of hoisting tools. Figure 8 This is a schematic diagram of hoisting fixtures installed on the grinding disc. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings: Referring to the accompanying drawings, this utility model proposes a leveling device for a near-spherical grinding platform, including a grinding platform 9, on which a near-spherical grinding disc 11 to be leveled is disposed. It also includes a support frame 1 and an annular leveling disc 4. One end of the support frame 1 is provided with an arc-shaped surface, and the other end is fixed on the grinding platform 9. Bearings 2 are respectively disposed at both ends of the arc-shaped surface. The outer surface of the annular leveling disc 4 is adapted to the arc-shaped surface and rotates with the bearings 2. A grinding wheel 8 and a counterweight 6 are disposed inside the annular leveling disc 4. The grinding wheel 8 is in contact with the near-spherical grinding disc 11 to be leveled.

[0015] The bearing 2 is connected to the support frame 1 by bearing screws 3.

[0016] Among them, counterweight block 6 is provided with counterweight block screw 5 on its upper surface.

[0017] The grinding wheel 8 is fixed inside the annular dressing disc 4 by a key 7.

[0018] The outer surface of the grinding wheel 8 is provided with a groove a, and the inner surface of the annular dressing disk 4 is provided with a groove b corresponding to the position of the groove a. The groove a and the groove b are connected by a key 7, so that the grinding wheel 8 is fixed inside the annular dressing disk 4.

[0019] The support frame 1 is provided with a U-shaped groove, and the support screw 10 fixes the support frame 1 to the grinding platform 9 through the U-shaped groove.

[0020] In this invention, a diamond-made leveling disc 4 is used to improve the leveling speed. After using this device, the leveling time for a convex or concave grinding disc (with a height difference of 0.2 mm) is about 2.5 hours, which greatly improves the leveling speed.

[0021] In this utility model, a counterweight 6 is added, such as... Figure 5 As shown, by adding gravity to the grinding wheel 8, the stability of the leveling process is improved and the leveling time is reduced.

[0022] In this invention, by equipping counterweights 6 of different weights to apply different gravitational forces, this invention supports simultaneous grinding by three grinding fixtures, such as... Figure 2 As shown, three grinding fixtures grind simultaneously, avoiding the tool marks left on the grinding disc by a single finishing fixture. In this utility model, a pin 7 is designed to ensure that the grinding wheel 8 and the grinding platform 9 rotate at the same speed.

[0023] During installation, align the grooves of the annular dressing disc 4 and the grinding wheel 8, place the key 7 along the grooves, and then press down the counterweight 6 to achieve the same rotational speed for the annular dressing disc 4 and the grinding wheel 8. For disassembly, simply lift the counterweight screw 5 with both hands, remove the counterweight 6, use the magnet to pull out the key 7, and unscrew the bracket screw 10.

[0024] Before leveling, assemble bearing 2 to support frame 1 using bearing screws 3, and then assemble the three assembled support frames 1 according to... Figure 2 As shown, it is fixed by bracket screw 10. Place the grinding wheel 8 into the annular dressing disc 4 and position it by key 7. Install the counterweight screw 5 into the counterweight 6 and use the counterweight 6 to press the grinding wheel 8 and key 7 together.

[0025] The leveling process includes rough finishing and fine finishing: When the grinding platform 9 starts, the grinding disc 11 (e.g.) Figure 3 (As shown) Rotating counterclockwise causes the annular dressing disc 4 to rotate counterclockwise against the bearing 2. The grinding wheel 8 and the counterweight 6 rotate synchronously with the annular dressing disc 4. The grinding wheel and the annular dressing disc 4 together level the grinding disc 11. Figure 2 As shown.

[0026] During rough finishing, such as Figure 2 As shown, three different weights of counterweights are needed. The weights of the three counterweights change in the order: A > B > C. Figure 2 As shown. Because the amount of material to be removed is greatest near the center of the spherical grinding disc 11, and less near the edge, the heaviest counterweight 6 is placed at point A to apply the maximum pressure, ensuring that the amount of material removed at the center is greater than that at the edge within the same time frame. Point C is located near the edge of the spherical grinding disc 11, where the amount of material to be removed is small, so the lightest counterweight 6 is placed there to apply the minimum pressure.

[0027] During fine finishing, remove the counterweight 6, key 7, and grinding wheel 8, and only use the annular leveling disc 4 to level the near-spherical grinding disc 11. Figure 4 As shown.

[0028] After adopting this utility model, the leveling steps are as follows: (a) according to Figure 2 After installing the device, start the grinding platform and add leveling fluid periodically.

[0029] (b) Rough finishing of the grinding disc: stop rough finishing when the flatness of the grinding disc is within 0.01mm as measured by the flatness measuring instrument. (c) Remove the counterweight, grinding wheel, and key, and begin finishing, such as... Figure 4 As shown.

[0030] (d) When the flatness of the grinding disc is measured to be within 0.004mm by the flatness measuring instrument, stop the fine finishing and remove the device; the finishing is complete.

[0031] The maintenance workload and time are significantly reduced after adopting this utility model. It also eliminates the need for hoisting, handling, and specialized disassembly tools. This utility model is a simple-to-operate leveling device that can level a near-spherical grinding platform without removing the grinding disc, greatly reducing the complexity of leveling. The maintenance time has been reduced from 477 minutes to 160 minutes (see Table 1), saving leveling costs and eliminating the risk of damage to the grinding platform due to disassembly of the grinding disc. Table 1 compares the leveling effect of the device using this utility model with that of existing devices: Table 1

Claims

1. A leveling device for a near-spherical grinding platform, comprising a grinding platform, wherein a near-spherical grinding disc to be leveled is disposed on the grinding platform, characterized in that, It also includes a support frame and an annular finishing disc. One end of the support frame is provided with an arc-shaped surface, and the other end is fixed to the grinding platform. Bearings are respectively provided at both ends of the arc-shaped surface. The outer surface of the annular finishing disc is adapted to the arc-shaped surface and rotates with the bearings. A grinding wheel and a counterweight are provided inside the annular finishing disc. The grinding wheel is in contact with the near-spherical grinding disc to be finished.

2. The leveling device for the near-spherical grinding platform according to claim 1, characterized in that, The bearing is connected to the support frame by bearing screws.

3. The leveling device for the near-spherical grinding platform according to claim 1, characterized in that, Counterweight screws are installed on the upper surface of the counterweight.

4. The leveling device for the near-spherical grinding platform according to claim 1, characterized in that, The grinding wheel is fixed inside the annular dressing disc by a key.

5. The leveling device for the near-spherical grinding platform according to claim 4, characterized in that, The outer surface of the grinding wheel is provided with a groove a, and the inner surface of the annular dressing disc is provided with a groove b corresponding to the position of the groove a. The groove a and the groove b are connected by a key so that the grinding wheel is fixed inside the annular dressing disc.

6. The leveling device for the near-spherical grinding platform according to claim 1, characterized in that, The support frame is equipped with a U-shaped groove, and the support screws fix the support frame to the grinding platform through the U-shaped groove.

Images