Rotary driving linear reciprocating motion mechanical polishing mechanism

Abstract

The utility model relates to the technical field of mechanical polishing, and discloses a rotary driving linear reciprocating motion mechanical polishing mechanism which comprises a polishing workbench, a motor connected to the polishing workbench, a cam connected to one end of an output shaft of the motor, a moving plate connected to the interior of the polishing workbench and a polishing assembly connected to the lower end of the moving plate. The upper face and the lower face of the cam are fixedly connected with symmetrically-arranged annular plates, annular grooves are formed in the annular plates, and clamping pieces connected with one side of the movable plate are slidably connected into the annular grooves. The reciprocating motion of the grinding assembly on the grinding workbench is achieved along with rotation of the cam, compared with an original mode that reciprocating motion of the movable plate is achieved through a reset spring, fatigue generated by using the reset spring is avoided, the use convenience of the device is improved, the working efficiency is further improved, and the device is simple in structure, convenient to operate and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical grinding, in particular to a rotationally driven linear reciprocating mechanical grinding mechanism. Background Art

[0002] Grinding is a type of surface modification technology. It generally refers to a processing method that uses rough objects, such as sandpaper containing high-hardness particles, to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness. During the grinding process, the part plane needs to be polished multiple times to ensure that it meets the standard. Therefore, people have developed a reciprocating motion grinding device to improve work efficiency. However, the existing device has a complex structure and is difficult to disassemble and install. The energy loss during the driving process is large, and the reciprocating stroke cannot be changed. As a result, the processing of small parts also uses a large stroke, which not only wastes electricity, but also reduces the grinding work efficiency. Therefore, a reciprocating motion plane grinding device is urgently needed to be developed.

[0003] The patent with the current announcement number CN215616936U is a reciprocating plane grinding device, which relates to the technical field of grinding mechanical equipment, including a workbench, support columns vertically installed at the four corners of the upper surface of the workbench, a mounting plate installed together at the upper ends of two support columns on the same side, and a pair of mounting plates The relative inner side walls are connected together by a sliding member. The movable plate is perpendicular to the mounting plate, and a cylinder is vertically installed at the center position of the lower bottom surface of the movable plate. The telescopic end of the cylinder is connected to a grinder, and a cam driving structure is installed between the mounting plates on one side of the movable plate, and a spring reset structure is installed on the other side. The above technical solution not only uses a simple cam driving structure and a spring reset structure to make the grinder reciprocate for grinding, but also has a simple structure and small energy loss during the driving process. Moreover, the cam driving structure is easy to disassemble, and cam wheels of different sizes can be replaced to change the driving stroke and improve the working efficiency of grinding.

[0004] When the above device is used, there are the following problems:

[0005] Although the above-mentioned device utilizes a rotating driving cam and a spring reset structure to realize the reciprocating linear motion of the grinder, the device utilizes four reset springs to realize the reset of the movable plate. The springs will experience elastic fatigue during long-term use, and the number of reciprocating motions in the above-mentioned device during the grinding process is relatively frequent, so spring fatigue is more likely to occur. After a period of use, the movable plate in the device will become difficult to recover, thereby reducing the grinding effect of the device and causing inconvenience. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a rotationally driven linear reciprocating mechanical grinding mechanism, which makes the use of the grinding device more convenient.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotationally driven linear reciprocating mechanical grinding mechanism, comprising a grinding workbench, a motor connected to the grinding workbench, a cam connected to one end of the motor output shaft, a movable plate connected to the grinding workbench and a grinding assembly connected to the lower end of the movable plate, the upper and lower surfaces of the cam are fixedly connected with symmetrically arranged annular plates, annular grooves are provided in the annular plates, and a clamping piece connected to one side of the movable plate is slidably connected in the annular groove.

[0008] Furthermore, the clamping member includes an upper limit block and a lower limit block, the cross-section of the upper limit block is U-shaped, and the cross-section of the lower limit block is L-shaped, and the ends of the upper limit block and the lower limit block are respectively clamped with the two annular grooves and slidably connected with the annular grooves.

[0009] Furthermore, the upper limit card block and the lower limit card block are detachably connected.

[0010] Furthermore, a bolt is provided through the top of the upper limit block, and the bolt passes through the upper limit block and one end of the lower limit block, and a nut is threadedly connected to the outer side.

[0011] Furthermore, fixing ears are fixedly connected to both sides of the upper limit clamping block, screws are connected to the inner threads of the fixing ears, and one end of the screw passes through the fixing ears and is threadedly connected to the movable plate.

[0012] Furthermore, balls are embedded in the three surfaces where the upper limit block, the lower limit block and the annular groove meet.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses using a simple structure, convenient operation, and high practicality, and the utility model can realize the reciprocating motion of the grinding assembly on the grinding workbench by the rotation of the cam, and the reciprocating motion of the grinding assembly on the grinding workbench is realized. Compared with the original use of the return spring to realize the reciprocating motion of the grinding plate, the utility model avoids the fatigue caused by the use of the return spring, enhances the convenience of use of the device, and further improves the work efficiency. The utility model has the advantages of simple structure, convenient operation and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of an overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of another state of the utility model as a whole;

[0017] Figure 3It is a three-dimensional structural schematic diagram of a local state of the movable plate of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the upper limit clamping block and the lower limit clamping block of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the cam, the annular plate and the annular groove of the utility model.

[0020] In the figure: 1. grinding workbench; 2. motor; 3. cam; 4. moving plate; 5. grinding assembly; 6. annular plate; 601, annular groove; 7. upper limit block; 8. lower limit block; 9. fixing ear; 10. screw; 11. ball; 12. bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figures 1 to 5 As shown, a rotary driven linear reciprocating mechanical grinding mechanism includes a grinding table 1, a motor 2 connected to the grinding table 1, a cam 3 connected to one end of the output shaft of the motor 2, a movable plate 4 connected in the grinding table 1 and a grinding assembly 5 connected to the lower end of the movable plate 4, the upper and lower surfaces of the cam 3 are fixedly connected with symmetrically arranged annular plates 6, an annular groove 601 is opened in the annular plate 6, and a clamping piece connected to one side of the movable plate 4 is slidably connected in the annular groove 601.

[0023] like Figure 1 As shown, the rotary driven linear reciprocating motion mechanical grinding mechanism in the utility model is similar to the existing reciprocating motion plane grinding device structure, such as the patent with publication number CN215616936U is a reciprocating motion plane grinding device. The main improvement of the utility model is to make the use of the grinding device more convenient, such as Figures 1 to 5 As shown, when the rotary driven linear reciprocating motion mechanical grinding mechanism in the utility model is in use, when it is necessary to grind the workpiece, the motor 2 can be started, and the motor 2 drives the cam 3 to rotate. During the rotation, the cam 3 drives the annular plates 6 on the upper and lower surfaces to rotate, so that the clamping parts in the annular plates 6 drive the movable plate 4 to move back and forth. In this way, the rotation of the cam 3 is utilized, so that the movable plate 4 is driven by the clamping parts, and the grinding assembly 5 realizes the reciprocating motion on the grinding workbench 1 as the cam 3 rotates. Compared with the original use of the return spring to realize the reciprocating motion of the movable plate 4, the fatigue caused by the use of the return spring is avoided, the convenience of use of the device is enhanced, and the work efficiency is further improved.

[0024] like Figure 3 , Figure 4 and Figure 5 As shown, the clamping member includes an upper limit block 7 and a lower limit block 8. The cross section of the upper limit block 7 is U-shaped, and the cross section of the lower limit block 8 is L-shaped. The ends of the upper limit block 7 and the lower limit block 8 are respectively clamped with the two annular grooves 601 and slidably connected with the annular grooves 601.

[0025] Specifically, by utilizing the clamping setting of the ends of the upper limit block 7 and the lower limit block 8 and the annular groove 601, when the cam 3 rotates, the annular plate 6 on the cam 3 rotates accordingly, causing the ends of the upper limit block 7 and the lower limit block 8 to slide relative to each other in the annular groove 601, and the upper limit block 7 and the lower limit block 8 will drive the movable plate 4 to reciprocate on the grinding workbench 1. With this setting, the rotation of the cam 3 can drive the reciprocating motion of the movable plate 4.

[0026] like Figure 4 As shown, the upper limit block 7 and the lower limit block 8 are detachably connected.

[0027] like Figure 4 As shown, a bolt 12 is provided through the top of the upper limit block 7, and the bolt 12 passes through the upper limit block 7 and one end of the lower limit block 8 and is threadedly connected with a nut on the outer side.

[0028] Specifically, by setting the upper limit block 7 and the lower limit block 8 as a detachable connection, the upper limit block 7 and the lower limit block 8 can be easily disassembled, thereby facilitating people to replace a smaller or larger cam 3;

[0029] When replacing the cam 3, it is only necessary to rotate the nut to separate the nut from the bolt 12, so that the upper limit block 7 and the lower limit block 8 can be separated. At this time, the cam 3 can be separated from the output end of the motor 2. The disassembly method here is the same as the motor disassembly method in the patent with publication number CN215616936U, which is a reciprocating motion plane grinding device, and the cam 3 can be replaced.

[0030] like Figure 4 As shown, fixing ears 9 are fixedly connected to both sides of the upper limit block 7 , and screws 10 are internally threadedly connected to the fixing ears 9 . One end of the screw 10 passes through the fixing ears 9 and is threadedly connected to the movable plate 4 .

[0031] Specifically, after using it for a period of time, the user can separate the two screws 10 from the fixing ears 9 to separate the upper limit block 7, the lower limit block 8 from the movable plate 4. This arrangement can facilitate the replacement of the upper limit block 7, the lower limit block 8 as a whole.

[0032] like Figure 4 As shown, balls 11 are embedded in the three surfaces where the upper limit block 7, the lower limit block 8 and the annular groove 601 meet. With the arrangement of the balls 11, the sliding friction between the ends of the upper limit block 7, the lower limit block 8 and the annular groove 601 can be transformed into rolling friction, so that the sliding resistance between the upper limit block 7, the lower limit block 8 and the annular groove 601 is reduced, thereby making the reciprocating motion of the moving plate 4 smoother.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary driven linear reciprocating mechanical grinding mechanism, comprising a grinding table (1), a motor (2) connected to the grinding table (1), a cam (3) connected to one end of the output shaft of the motor (2), a moving plate (4) connected inside the grinding table (1), and a grinding assembly (5) connected to the lower end of the moving plate (4), characterized in that: The upper and lower surfaces of the cam (3) are fixedly connected to symmetrically arranged annular plates (6), an annular groove (601) is provided in the annular plate (6), and a clamping piece connected to one side of the movable plate (4) is slidably connected in the annular groove (601).

2. A rotary driven linear reciprocating mechanical grinding mechanism according to claim 1, characterized in that: The clamping member comprises an upper limit clamping block (7) and a lower limit clamping block (8); the cross section of the upper limit clamping block (7) is U-shaped, and the cross section of the lower limit clamping block (8) is L-shaped; the ends of the upper limit clamping block (7) and the lower limit clamping block (8) are respectively clamped with two annular grooves (601) and are slidably connected with the annular grooves (601).

3. A rotary driven linear reciprocating mechanical grinding mechanism according to claim 2, characterized in that: The upper limit clamping block (7) and the lower limit clamping block (8) are detachably connected.

4. A rotary driven linear reciprocating mechanical grinding mechanism according to claim 2 or 3, characterized in that: A bolt (12) is provided through the top of the upper limit clamping block (7), and the bolt (12) passes through the upper limit clamping block (7) and one end of the lower limit clamping block (8) is threadedly connected to a nut.

5. A rotary driven linear reciprocating mechanical grinding mechanism according to claim 2 or 3, characterized in that: The upper limit clamping block (7) is fixedly connected with fixing ears (9) on both sides, the fixing ears (9) are internally threadedly connected with screws (10), and one end of the screw (10) passes through the fixing ears (9) and is threadedly connected with the movable plate (4).

6. A rotary driven linear reciprocating mechanical grinding mechanism according to claim 4, characterized in that: The upper limit clamping block (7) is fixedly connected with fixing ears (9) on both sides, the fixing ears (9) are internally threadedly connected with screws (10), and one end of the screw (10) passes through the fixing ears (9) and is threadedly connected with the movable plate (4).

7. A rotary driven linear reciprocating mechanical grinding mechanism according to claim 4, characterized in that: Balls (11) are embedded in the three surfaces where the upper limit block (7), the lower limit block (8) and the annular groove (601) meet.

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