Blank grinding device for hardware production and machining

Abstract

The utility model relates to the technical field of polishing devices, and discloses a blank polishing device for hardware production and processing, which comprises a polishing table, a workpiece positioning mechanism and a polishing mechanism, the workpiece positioning mechanism comprises a bottom plate and a protective cover, a center shaft penetrates through the top face of the protective cover, a first motor used for driving the center shaft to rotate is installed in the protective cover, a bearing plate is fixedly connected to the top of the center shaft, a plurality of electric push rods are installed at the top of the bearing plate, and clamping blocks are installed at the output ends of the electric push rods. The polishing mechanism comprises a protection box, an equipment box is installed at the front end of the protection box through the output end of a rotary air cylinder, a second motor is installed in the equipment box, a transmission shaft is installed at the output end of the second motor, a sleeve slidably sleeves the outer side of the transmission shaft, and a polishing wheel is installed at the bottom of the sleeve through an installation disc. The inner wall of the workpiece is clamped through the clamping blocks, the influence on polishing of the outer wall of the workpiece can be avoided, the workpiece is driven to rotate through the first motor, continuous polishing can be achieved, and therefore the polishing speed is increased.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, specifically a blank grinding device for hardware production and processing. Background Technology

[0002] In the production process of hardware parts, the manufacturing of blanks is a crucial step. Blanks refer to the metal materials that have undergone preliminary processing before being finally machined into hardware parts. After processing, blanks usually need to be ground to remove rough parts, oxide layers, and burr defects from the surface of the blank, thereby improving the surface finish and dimensional accuracy of the workpiece and preparing it for subsequent processing or surface treatment. Grinding equipment is required when grinding blanks.

[0003] Existing grinding devices, such as the utility model patent with application number 2023231431520, which discloses a blank grinding device for hardware production and processing, facilitate the angle adjustment of the lifting platform and the workpiece through the design of the lifting frame and gearbox, thereby improving grinding efficiency and offering good practicality and economy. Although this patent meets the requirements for use to a certain extent, it has been found in actual use that while this design can drive the lifting platform to rotate via the rotating shaft to achieve grinding of the workpiece's side surface, the grinding surface is limited to the top and sides of the workpiece. When grinding other surfaces, the workpiece needs to be re-clamped. When grinding cylindrical workpieces, the grinding efficiency is significantly reduced. Furthermore, the device uses flat-jaw pliers to clamp the outer wall of the workpiece, which can affect the grinding of the outer wall of hollow hardware parts, thus affecting the grinding rate. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing hardware blank grinding devices cannot continuously grind hollow cylindrical workpieces, and the clamping components affect the grinding of the outer wall of the workpiece, thus affecting the grinding rate.

[0005] To solve the above problems, the technical solution of this utility model is: a blank grinding device for hardware parts production and processing, including a grinding table, on which a workpiece positioning mechanism and a grinding mechanism are installed;

[0006] The workpiece positioning mechanism includes a base plate movably mounted on a grinding table, a protective cover installed on the top of the base plate, two central shafts rotatably mounted through the top surface of the protective cover, a support plate fixed to the top of the central shafts, a plurality of electric push rods installed on the top of the support plate, the output end of the electric push rods being away from the central shafts and having a clamping block installed thereon, and a motor for driving the central shafts to rotate installed inside the protective cover.

[0007] The grinding table has an opening at the rear end of its surface. The grinding mechanism includes a protective box that extends through the opening. Two rotary cylinders are installed at the front end of the protective box. An equipment box is installed at the output end of each rotary cylinder. A second motor is installed inside the equipment box. A drive shaft is installed at the output end of the second motor. A sleeve that extends through the bottom surface of the protective box is slidably sleeved on the outside of the drive shaft. A mounting plate is fixed to the bottom of the sleeve. A grinding wheel is installed on the mounting plate.

[0008] Furthermore, a belt drive assembly is provided between the output shaft and the central shaft of the motor.

[0009] Furthermore, a through hole is provided between the central shaft and the support plate, and two terminals are installed inside the through hole. The bottom of the two terminals is connected to conductive blocks installed on both sides of the bottom of the central shaft. Two annular conductive plates that cooperate with the conductive blocks are installed on the base plate, and the two conductive plates are connected to an external power source through a cable.

[0010] Furthermore, a limiting groove is provided on the surface of the grinding table, a vertical plate is fixedly connected to the bottom rear end of the base plate and passes through the limiting groove, a fixing plate is fixedly connected to the bottom front end of the grinding table, and a cylinder is provided between the fixing plate and the vertical plate.

[0011] Furthermore, a PLC controller is installed at the front end of the protective box, and support columns 19 are symmetrically fixed to the lower parts of both sides. The top surface of the support column is provided with a sliding groove, and the bottom surface is provided with a through groove that communicates with the sliding groove. Cylinders 2 are symmetrically installed on both sides of the opening of the grinding table. A limiting plate that is slidably connected to the sliding groove is installed at the output end of the cylinder 2. A threaded rod that passes through the through groove is fixed to the bottom of the limiting plate, and a nut is installed on the threaded rod.

[0012] Furthermore, a limiting strip is fixed to the side of the drive shaft, and a limiting groove adapted to the limiting strip is provided on the inner side of the sleeve.

[0013] Furthermore, a cylinder three is installed on the upper part of the inner wall of the equipment box via a connecting plate, and a horizontal plate is installed at the output end of the cylinder three. The sleeve passes through and is rotatably installed on the horizontal plate.

[0014] Furthermore, a dust collection hood is installed at the front end of the protective box below the grinding wheel.

[0015] The advantages of this invention compared to existing technologies are as follows: This invention uses a rotary cylinder to drive the equipment box to rotate, which can adjust the angle of the grinding wheel. The clamping block clamps the inner wall of the hollow cylindrical workpiece, thereby avoiding any impact on the grinding of the outer wall. The motor drives the central shaft to rotate through the belt drive assembly, which can realize the rotation of the workpiece and continuous grinding, thereby improving the grinding speed. Attached Figure Description

[0016] Figure 1This is a three-dimensional representation of the present invention. Figure 1 .

[0017] Figure 2 This is a three-dimensional representation of the present invention. Figure 2 .

[0018] Figure 3 This is a cross-sectional view of the protective cover of this utility model.

[0019] Figure 4 This is a connection structure diagram of the limiting plate of this utility model.

[0020] Figure 5 This is a cross-sectional view of the equipment box of this utility model.

[0021] As shown in the figure: 1. Grinding table; 2. Base plate; 3. Protective cover; 4. Central shaft; 5. Support plate; 6. Electric actuator; 7. Clamping block; 8. Motor 1; 9. Protective box; 10. Rotary cylinder; 11. Equipment box; 12. Motor 2; 13. Drive shaft; 14. Sleeve; 15. Grinding wheel; 16. Vertical plate; 17. Fixing plate; 18. Cylinder 1; 19. Support column; 20. Cylinder 2; 21. Limiting plate; 22. Threaded rod; 23. Limiting strip; 24. Cylinder 3; 25. Horizontal plate; 26. Dust collection hood. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] A blank grinding device for hardware parts production and processing includes a grinding table 1, on which two workpiece positioning mechanisms and two grinding mechanisms are installed.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the workpiece positioning mechanism includes a base plate 2 movably mounted on a grinding table 1. A protective cover 3 is installed on the top of the base plate 2. Two central shafts 4 are rotatably mounted through the top surface of the protective cover 3. A support plate 5 is fixedly connected to the top of the central shafts 4. Multiple electric push rods 6 are installed on the top of the support plate 5. The output end of the electric push rods 6 is away from the central shafts 4 and is equipped with a clamping block 7. A motor 8 is installed inside the protective cover 3. A belt drive assembly is provided between the output shaft of the motor 8 and the central shafts 4. A limit groove is opened on the table surface of the grinding table 1. A vertical plate 16 passing through the limit groove is fixedly connected to the bottom rear end of the base plate 2. A fixing plate 17 is fixedly connected to the bottom front end of the grinding table 1. A cylinder 18 is provided between the fixing plate 17 and the vertical plate 16.

[0025] The extension and retraction of cylinder 18 causes the vertical plate 16 to move, which in turn moves the base plate 2 and the protective cover 3. This allows adjustment of the distance between the support plate 5 and the grinding mechanism, enabling the hollow blank workpiece to be ground to be placed on the outside of the clamping block 7. The electric push rod 6 extends, causing the clamping block to clamp the inner wall of the workpiece, thus achieving the clamping and fixing of the workpiece. Motor 8 drives the central shaft 4 to rotate through the belt drive assembly, which enables the workpiece to rotate.

[0026] A through hole is provided between the central shaft 4 and the support plate 5. Two terminals are installed inside the through hole. The bottom of the two terminals is connected to conductive blocks installed on both sides of the bottom of the central shaft 4. Two annular conductive plates that cooperate with the conductive blocks are installed on the base plate 2. The two conductive plates are connected to an external power source through a cable.

[0027] When the central shaft 4 drives the conductive block to rotate, the conductive block can always be in contact with the annular conductive sheet, thereby preventing the electric push rod 6 from losing power. Regular maintenance and replacement of the conductive block and the annular conductive sheet can ensure the power supply to the electric push rod 6.

[0028] like Figure 1 and Figure 4 As shown, the grinding table 1 has an opening at the rear end of its table surface. The grinding mechanism includes a protective box 9 that passes through the grinding table 1. A PLC controller is installed at the front end of the protective box 9. Support columns 19 are symmetrically fixed to the lower parts of both sides. A sliding groove is opened on the top surface of the support column 19, and a through groove is opened on the bottom surface that communicates with the sliding groove. Cylinders 20 are symmetrically installed on both sides of the opening of the grinding table 1. A limiting plate 21 that is slidably connected to the sliding groove is installed at the output end of the cylinder 20. A threaded rod 22 that passes through the through groove is fixed to the bottom of the limiting plate 21. A nut is installed on the threaded rod 22.

[0029] Two rotary cylinders 10 are installed at the front end of the protective box 9. An equipment box 11 is installed at the output end of the rotary cylinders 10. A motor 12 is installed inside the equipment box 11. A drive shaft 13 is installed at the output end of the motor 12. A sleeve 14 that passes through the bottom surface of the protective box 9 is slidably sleeved on the outside of the drive shaft 13. A limit strip 23 is fixedly connected to the side of the drive shaft 13. A limit groove that matches the limit strip 23 is opened on the inside of the sleeve 14. A mounting plate is fixedly connected to the bottom of the sleeve 14. A grinding wheel 15 is installed on the mounting plate. A cylinder 24 is installed on the upper part of the inner wall of the equipment box 11 through a connecting plate. A horizontal plate 25 is installed at the output end of the cylinder 24. The sleeve 14 passes through and is rotatably installed on the horizontal plate 25. A dust collection hood 26 is installed at the front end of the protective box 9 below the grinding wheel 15.

[0030] like Figure 1 and Figure 5As shown, an industrial vacuum cleaner is installed inside the protective box 9, and the vacuum pipe is connected to the dust collection hood 26, which can adsorb and treat the dust generated during grinding; the motor 12 drives the sleeve 14 to rotate through the transmission shaft 13, and the sleeve 14 drives the grinding wheel 15 to rotate, thereby grinding the workpiece; the extension and retraction of the cylinder 24 causes the horizontal plate 25 to move the sleeve 14 up and down, which can adjust the grinding wheel 15. Thus, when the protective box 9 is stationary, the distance between the grinding wheel 15 and the support plate 5 can be adjusted by the extension and retraction of the cylinder 24.

[0031] By extending and retracting the cylinder 20, the limiting plate 21 causes the protective box 9 to rise and fall via the support column 19, thereby adjusting the height of the grinding wheel 15. Loosening the nut and sliding the protective box 9 along the opening allows the support column 19 to slide to a new position. Then, tightening the nut allows the relative position of the grinding wheel 15 and the support plate 5 to be adjusted.

[0032] The angle of the grinding wheel 15 can be adjusted by rotating the equipment box 11 driven by the rotary cylinder 10.

[0033] In practical use, the relative position of the grinding wheel 15 is adjusted, and the hollow hardware blank is placed on the outside of the clamping block 7. The electric push rod 6 extends, so that the clamping block clamps the inner wall of the workpiece, thereby clamping and fixing the workpiece. The extension and retraction of the cylinder 18 causes the vertical plate 16 to move the base plate 2 and the protective cover 3, adjusting the distance between the support plate 5 and the grinding wheel 15. The rotation of the rotary cylinder 10 causes the equipment box 11 to rotate, which can adjust the angle of the grinding wheel 15. The extension and retraction of the cylinder 20 causes the protective box 9 to rise and fall, which can adjust the height of the grinding wheel 15. When only a fine adjustment of the height of the grinding wheel 15 is needed, it can be adjusted by extending and retracting the cylinder 3 24.

[0034] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A blank grinding device for hardware parts production and processing, comprising a grinding table (1), wherein a workpiece positioning mechanism and a grinding mechanism are mounted on the grinding table (1), characterized in that: The workpiece positioning mechanism includes a base plate (2) movably mounted on a grinding table (1), a protective cover (3) mounted on the top of the base plate (2), two central shafts (4) being mounted through and rotatably on the top surface of the protective cover (3), a support plate (5) being fixedly connected to the top of the central shafts (4), a plurality of electric push rods (6) being mounted on the top of the support plate (5), the output end of the electric push rods (6) being away from the central shafts (4) and having a clamping block (7) mounted thereon, and a motor (8) for driving the central shafts (4) to rotate is installed inside the protective cover (3). The grinding table (1) has an opening at the rear end of its table surface. The grinding mechanism includes a protective box (9) that passes through the opening. Two rotary cylinders (10) are installed at the front end of the protective box (9). An equipment box (11) is installed at the output end of the rotary cylinders (10). A second motor (12) is installed inside the equipment box (11). A drive shaft (13) is installed at the output end of the second motor (12). A sleeve (14) that passes through the bottom surface of the protective box (9) is slidably sleeved on the outside of the drive shaft (13). A mounting plate is fixedly connected to the bottom of the sleeve (14). A grinding wheel (15) is installed on the mounting plate.

2. The blank grinding device for hardware parts production and processing according to claim 1, characterized in that: A belt drive assembly is provided between the output shaft of the motor (8) and the central shaft (4).

3. The blank grinding device for hardware parts production and processing according to claim 1, characterized in that: The grinding table (1) has a limiting groove on its surface. The bottom of the rear end of the base plate (2) is fixedly connected to a vertical plate (16) that passes through the limiting groove. The bottom of the front end of the grinding table (1) is fixedly connected to a fixing plate (17). A cylinder (18) is provided between the fixing plate (17) and the vertical plate (16).

4. The blank grinding device for hardware parts production and processing according to claim 1, characterized in that: The protective box (9) is symmetrically fixed with support columns (19) on both sides of the lower part. The support column (19) has a sliding groove on the top surface and a through groove on the bottom surface that is connected to the sliding groove. The grinding table (1) is symmetrically installed with cylinders (20) on both sides of the opening. The output end of the cylinder (20) is equipped with a limiting plate (21) that is slidably connected to the sliding groove. The bottom of the limiting plate (21) is fixed with a threaded rod (22) that passes through the through groove. A nut is installed on the threaded rod (22).

5. The blank grinding device for hardware parts production and processing according to claim 1, characterized in that: The transmission shaft (13) is fixedly connected to a limiting strip (23) on its side, and the sleeve (14) has a limiting groove that matches the limiting strip (23) on its inner side.

6. The blank grinding device for hardware parts production and processing according to claim 1, characterized in that: The upper inner wall of the equipment box (11) is equipped with a cylinder three (24) via a connecting plate. A horizontal plate (25) is installed at the output end of the cylinder three (24). The sleeve (14) passes through and is rotatably mounted on the horizontal plate (25).

7. The blank grinding device for hardware parts production and processing according to claim 1, characterized in that: A dust collection hood (26) is installed at the front end of the protective box (9) below the grinding wheel (15).

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