Workpiece surface compensation grinding device

Abstract

The utility model relates to a workpiece surface compensation grinding device which comprises a grinding disc used for polishing and grinding a workpiece. The main shaft assembly is connected with the grinding disc through a grinding disc connecting seat; the main shaft assembly comprises a shaft sleeve and a hollow shaft, the hollow shaft is embedded into the shaft sleeve, the two ends of the hollow shaft are connected with the shaft sleeve through bearings, the bottom end of the hollow shaft is connected with the frosted disc, and a plurality of liquid outlets are formed in the bottom of the hollow shaft; a bearing seat is arranged on the outer side of the bearing; the supporting plate is arranged at the top end of the hollow shaft; the driving mechanism is arranged on the supporting plate and is connected with the hollow shaft; and the grinding and pressurizing device is arranged on the supporting plate and is connected with the bearing seat. According to the grinding device, the grinding disc is used for grinding a workpiece at a high speed, and the workpiece can be pressurized during grinding; in the grinding process of the grinding disc, the height of the grinding disc is adjusted through the grinding pressurizing device, pressure adjustment of workpiece grinding is achieved, the plane precision of a workpiece is optimized through pressure adjustment, and the high-precision machining requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to element processing technical field especially is a work piece surface compensation grinding device. BACKGROUND

[0002] In the field of modern industrial manufacturing, acrylic sheet is widely used in various special purposes due to its excellent optical properties and easy processing characteristics. These uses put special requirements on the structural properties of acrylic sheet, especially in the processing of the upper and lower surfaces of the sheet blank. Although the traditional milling method can remove material, it has many shortcomings, especially in applications that require rapid removal of sheet thickness while maintaining high surface planar accuracy.

[0003] Firstly, the heat generated by milling may cause ablation or deformation of the acrylic sheet, affecting the optical properties and mechanical strength of the material. Secondly, milling is difficult to achieve high-precision surface treatment, especially in the processing of large-size sheets, maintaining the uniformity and flatness of the entire sheet surface is a challenge. In addition, the milling tool wears out quickly and needs to be replaced frequently, which not only increases the cost but also reduces the production efficiency. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a work piece surface compensation grinding device that uses a grinding disc to grind the work piece at high speed and can pressurize the work piece during grinding. The height of the grinding disc is adjusted by a grinding pressure adjusting device during grinding to adjust the grinding pressure of the work piece, optimize the planar accuracy of the work piece, and meet the requirements of high-precision processing.

[0005] To solve the above technical problems, the utility model provides a work piece surface compensation grinding device, comprising:

[0006] A grinding disc is used to polish and grind the work piece;

[0007] A spindle assembly is connected to the grinding disc through a grinding disc connecting seat; the spindle assembly includes a shaft sleeve and a hollow shaft, the hollow shaft is embedded in the shaft sleeve, and the two ends of the hollow shaft are connected to the shaft sleeve through bearings, the bottom end of the hollow shaft is connected to the grinding disc, and the bottom of the hollow shaft is provided with a plurality of liquid outlets for discharging the injected cooling water or grinding liquid in the hollow shaft; the outer side of the bearing is provided with a bearing seat;

[0008] A support plate is arranged at the top end of the hollow shaft;

[0009] A driving mechanism is arranged on the support plate and connected to the hollow shaft to control the rotation of the grinding disc;

[0010] The grinding pressure device is arranged on the support plate and connected with the bearing seat, and the pressure of the workpiece grinding is adjusted by controlling the height of the grinding disc.

[0011] In an embodiment of the present application, the grinding pressure device comprises a servo electric cylinder, and the driving end of the servo electric cylinder is connected with the bearing seat through a floating joint.

[0012] In an embodiment of the present application, a pressure sensor is arranged between the floating joint and the bearing seat.

[0013] In an embodiment of the present application, the driving mechanism comprises a servo motor, a planetary reducer, a driving gear and a driven gear; the output shaft of the servo motor is connected with the input shaft of the planetary reducer, the output shaft of the planetary reducer is connected with the driving gear, the driven gear is fixedly arranged outside the hollow shaft, and the driving gear is engaged with the driven gear.

[0014] In an embodiment of the present application, a main shaft seat is arranged outside the shaft sleeve, and a connecting side plate is arranged between the main shaft seat and the support plate.

[0015] In an embodiment of the present application, a main shaft dust cover is arranged between the main shaft seat and the grinding disc connecting seat.

[0016] In an embodiment of the present application, a guide groove is arranged on the connecting side plate, a guide rod is arranged on the side wall of the bearing seat, the guide rod is inserted into the guide groove, and the lifting guide of the main shaft assembly is realized.

[0017] In an embodiment of the present application, a rotary joint is arranged at the top of the hollow shaft, which is used for injecting the grinding liquid into the hollow shaft, and a plurality of liquid outlets are arranged at the bottom of the hollow shaft, which are used for discharging the grinding liquid in the hollow shaft.

[0018] In an embodiment of the present application, an anti-rotation bracket for preventing the rotary joint from rotating is fixedly arranged on the support plate, and an anti-rotation rod matched with the anti-rotation bracket is arranged on the hollow shaft.

[0019] In an embodiment of the present application, an annular groove is arranged outside the grinding disc connecting seat on the upper side of the grinding disc, which is used for storing cooling water.

[0020] Compared with the prior art, the above technical scheme of the present application has the following beneficial effects:

[0021] The utility model discloses a work piece surface compensation grinding device, utilize the sanding disc to work piece high -speed grinding to can pressurize to work piece when grinding, the sanding disc is adjusted the height of sanding disc through the grinding pressure device in the process of grinding, realizes the pressure adjustment of work piece grinding, and the plane precision of work piece is optimized through the pressure adjustment, satisfies the high -precision processing requirement. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the utility model more easily be clearly understood, below according to the specific embodiment of the utility model and combining with the drawings, the utility model is further detailed, wherein

[0023] Figure 1 It is the stereogram schematic diagram of the work piece surface compensation grinding device in the preferred embodiment of the utility model;

[0024] Figure 2 It is the side view structural schematic diagram of the work piece surface compensation grinding device shown in the figure; Figure 1

[0025] Figure 3 It is the structural schematic diagram of the main shaft subassembly of the work piece grinding device shown in the figure; Figure 1

[0026] Figure 4 It is the structural schematic diagram of the floating connector, pressure sensor and bearing seat of the work piece grinding device shown in the figure; Figure 1

[0027] Description of the Drawings: 1, sanding disc;2, sanding disc connecting seat;3, shaft sleeve;4, hollow shaft;5, bearing seat;6, support plate;7, drive mechanism;8, main shaft seat;9, connecting side plate;10, main shaft dust cover;11, guide rod;12, swivel joint;13, anti -rotation support;14, anti -rotation rod;15, servo electric jar;16, floating connector;17, pressure sensor;18, annular groove. DETAILED DESCRIPTION

[0028] The utility model is further explained in connection with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0029] As Figures 1-3 ​​​As shown, the utility model discloses a kind of workpiece surface compensation grinding device, comprising: sanding disc 1, for polishing grinding to workpiece;Main shaft assembly, it is connected with the sanding disc 1 by sanding disc connecting seat 2;The main shaft assembly includes shaft sleeve 3 and hollow shaft 4, the hollow shaft 4 is embedded in the inside of the shaft sleeve 3, and the both ends of the hollow shaft 4 are connected with the shaft sleeve 3 by bearing, the bottom end of the hollow shaft 4 is connected with the sanding disc 1, and the bottom of the hollow shaft 4 is equipped with several liquid outlets, for the cooling water or grinding liquid in the hollow shaft 4 inside is discharged;The outside of the bearing is equipped with bearing seat 5;Supporting plate 6 is arranged at the top end of hollow shaft 4;Driving mechanism 7 is arranged on the supporting plate 6, and is connected with the hollow shaft 4, for controlling the rotation of the sanding disc 1;Grinding pressurizing device is arranged on the supporting plate 6, and is connected with the bearing seat 5, and the height of sanding disc 1 is adjusted by controlling the lifting of main shaft assembly.

[0030] Specifically, as shown, Figure 4 The grinding pressurizing device includes servo cylinder 15, and the driving end of the servo cylinder 15 is connected with the bearing seat 5 through floating joint 16. Through the accurate control of the servo cylinder 15, the height of the sanding disc 1 is accurately adjusted, and the grinding precision and efficiency are improved. The floating joint 16 can compensate the installation error between the driving end of the servo cylinder 15 and the bearing seat 5, including the axial, radial and angular errors, so that the equipment can work normally even if it is not centered.

[0031] Further, a pressure sensor 17 is arranged between the floating joint 53 and the bearing seat 5. The pressure sensor 17 can monitor and adjust the pressure of the sanding disc 1 on the workpiece in real time, optimize the grinding effect, and prevent excessive wear or damage to the workpiece.

[0032] The driving mechanism 7 in the embodiment includes a servo motor, a planetary reducer, a driving gear and a driven gear. The output shaft of the servo motor is connected with the input shaft of the planetary reducer, the output shaft of the planetary reducer is connected with the driving gear, the driven gear is fixedly arranged on the outside of the hollow shaft 4, and the driving gear is engaged with the driven gear. Through the cooperation of the servo motor and the planetary reducer, the sanding disc is rotated at high speed and stably, and the grinding efficiency is improved.

[0033] In addition, the outside of the shaft sleeve 3 is wrapped with a main shaft seat 8, and a connecting side plate 9 is arranged between the main shaft seat 8 and the supporting plate 6. The connecting side plate 9 enhances the structural stability of the main shaft assembly, ensuring the stability and reliability in the high-speed grinding process.

[0034] The main shaft seat 8 and the sanding disc connecting seat 2 are provided with a main shaft dust cover 10 in the embodiment. The main shaft dust cover 10 protects the main shaft assembly from dust and debris, prolongs the service life of the equipment, and improves the maintenance efficiency of the equipment.

[0035] The connecting side plate 9 is provided with a guide groove, the side wall of the bearing seat 5 is provided with a guide rod 11, the guide rod 11 is inserted into the guide groove, and the lifting guide of the main shaft assembly is realized. The guide rod 11 is inserted into the guide groove, the accurate guidance of the main shaft assembly in the lifting process is ensured, the abrasion is reduced, and the stability and service life of the equipment are improved.

[0036] Further, the top of the hollow shaft 4 is provided with a rotary joint 12 for injecting the grinding liquid into the hollow shaft 4. The above structure design allows the cooling water grinding liquid to flow through the inside of the hollow shaft 4 and finally be discharged through the liquid outlet, so as to cool and lubricate the workpiece, improve the grinding efficiency and quality; the rotary joint 12 is arranged on the hollow shaft 4 to realize the continuous injection of the cooling water and the grinding liquid during the grinding process, so as to not only ensure that the workpiece is not ablated, but also sharpen the surface of the grinding wheel.

[0037] The support plate 6 is fixedly provided with an anti-rotation bracket 13 for preventing the rotary joint 12 from rotating, and the hollow shaft 4 is provided with an anti-rotation rod 14 matched with the anti-rotation bracket 13. The anti-rotation bracket 13 can prevent the rotary joint 12 from rotating and prevent the cooling liquid injection direction from deviating, thereby improving the cooling efficiency.

[0038] Further, the upper side of the grinding disc 1 located outside the grinding disc connecting seat 2 is provided with an annular groove 18 for storing cooling water. The annular groove 18 stores cooling water, which helps to cool the grinding disc 1 and the workpiece during the grinding process, prevents the workpiece from being deformed or damaged due to heat generated by friction, and also prolongs the service life of the grinding disc 1.

[0039] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A workpiece surface compensating lapping device, characterized by: The polishing disc is used for polishing and grinding the workpiece. The spindle assembly is connected with the polishing disc through the polishing disc connecting seat. The support plate is arranged at the top end of the hollow shaft. The driving mechanism is arranged on the support plate and connected with the hollow shaft, and is used for controlling the rotation of the polishing disc. The grinding pressure device is arranged on the support plate and connected with the bearing seat, and the pressure of the workpiece grinding is adjusted by controlling the height of the polishing disc. The grinding pressure device comprises a servo cylinder, and the driving end of the servo cylinder is connected with the bearing seat through a floating joint.

2. A workpiece surface compensating lapping device as defined in claim 1 wherein: A pressure sensor is arranged between the floating joint and the bearing seat.

3. A workpiece surface compensating lapping device as defined in claim 2 wherein: The driving mechanism comprises a servo motor, a planetary reducer, a driving gear and a driven gear.

4. The apparatus of claim 1 wherein: The output shaft of the servo motor is connected with the input shaft of the planetary reducer.

5. The apparatus of claim 3, wherein: The output shaft of the planetary reducer is connected with the driving gear.

6. A workpiece surface compensating abrading device according to claim 5 wherein: The driven gear is fixedly arranged outside the hollow shaft.

7. The apparatus of claim 5 wherein: The driving gear is engaged with the driven gear.

8. The apparatus of claim 1 wherein: The outer side of the shaft sleeve is wrapped with a spindle seat.

9. A workpiece surface compensating abrading device according to claim 8 wherein: The spindle seat is connected with the support plate through a connecting side plate.

10. The apparatus of claim 2 wherein: The spindle seat is connected with the polishing disc connecting seat through a spindle dust cover. The connecting side plate is provided with a guide groove. The sidewall of the bearing seat is provided with a guide rod. The guide rod is inserted into the guide groove to guide the lifting of the spindle assembly. The top of the hollow shaft is provided with a rotating joint for injecting grinding liquid into the hollow shaft. The bottom of the hollow shaft is provided with a plurality of liquid outlets for discharging the grinding liquid in the hollow shaft. The support plate is fixedly provided with an anti-rotation bracket for preventing the rotation of the rotating joint. The hollow shaft is provided with an anti-rotation rod matched with the anti-rotation bracket. The upper side of the polishing disc is provided with an annular groove outside the polishing disc connecting seat for storing cooling water.

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