Precise hardware part double-face grinding device

Abstract

The utility model discloses a precision hardware part double-face polishing device which comprises a rotating shaft installed at the output end of a polishing gun, the side wall of the rotating shaft is connected with an inner pipe, the bottom end of the inner pipe is connected with a bottom block, the side wall of the bottom block is connected with an outer pipe, and the distance between a bottom plate and a top plate is adjusted through an adjusting mechanism. The rotating shaft drives an inner pipe and a top plate to rotate; the inner pipe drives a bottom block to rotate; the bottom block and the top plate drive an outer pipe to rotate; the bottom block drives an adjusting mechanism to rotate; the hardware part is placed between the two second grinding pieces, the two second grinding pieces can synchronously grind the surfaces of the upper side and the lower side of the hardware part, the surface of one side of the hardware part can be ground through the first grinding piece, and therefore the single-face grinding effect and the double-face grinding effect of the hardware part are achieved.

Description

Technical Field

[0001] This utility model relates to the field of grinding devices, and in particular to a double-sided grinding device for precision hardware parts. Background Technology

[0002] Grinding uses the interaction and frictional heat between the abrasive and the workpiece to gradually flatten the workpiece surface and improve its smoothness. However, during the production of hardware parts, it is inevitable that the surface of the hardware parts will not be smooth enough, so grinding is required.

[0003] When polishing small hardware parts, conventional polishing heads typically polish only one side of the part. This is especially true for the polishing heads on commonly used manual polishing machines, which can only polish one side of the small hardware parts, reducing the efficiency of polishing. Therefore, a precision double-sided polishing device for hardware parts is needed, which can polish both sides of small hardware parts simultaneously to improve the polishing efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the low efficiency of conventional single-sided grinding heads by providing a double-sided grinding device for precision hardware parts.

[0005] The technical solution to achieve the above objective is: a double-sided polishing device for precision hardware parts, including a rotating shaft mounted on the output end of a polishing gun, an inner tube connected to the side wall of the rotating shaft, a bottom block connected to the bottom end of the inner tube, an outer tube connected to the side wall of the bottom block, four circumferentially arrayed outer holes opened on the side wall of the outer tube, a polishing mechanism provided on the outer tube, and an adjustment mechanism provided on the bottom block.

[0006] Preferably, the grinding mechanism includes a top plate, a first grinding disc, a second grinding disc, a bottom plate, an arc-shaped hole, a first circular hole, an inner hole, and a second circular hole. The side wall of the bottom plate has four arc-shaped holes arranged in a circumferential array. The side wall of the bottom plate has an inner hole. The side wall of the bottom plate has two symmetrically distributed first circular holes and two symmetrically distributed second circular holes. The side wall of the inner hole is movably connected to the inner tube. The side wall of the arc-shaped hole is movably connected to the side wall of the outer tube. The top end of the inner tube, the top end of the rotating shaft, and the top end of the outer tube are all fixedly connected to the bottom end of the top plate. The bottom end of the top plate and the top end of the bottom plate are both connected to the second grinding disc.

[0007] Preferably, the sidewall of the outer tube passes through the second grinding disc.

[0008] Preferably, the outer diameter of the top plate is equal to the outer diameter of the bottom plate, and the sidewall of the bottom plate passes through the outer hole.

[0009] Preferably, the adjusting mechanism includes a screw, a bottom nut, a guide rod, a spring, and a top nut. Two symmetrically distributed screws are connected to the top of the base block, and two symmetrically distributed guide rods are also connected to the top of the base block. A spring is connected to the bottom of the top plate, and the bottom of the spring is connected to the base plate. A top nut is threadedly connected to the side wall of the screw, and a bottom nut is also threadedly connected to the side wall of the screw.

[0010] Preferably, the top end of the screw and the top end of the guide rod are both connected to the top plate.

[0011] Preferably, the top nut is located above the bottom plate, and the bottom nut is located below the bottom plate.

[0012] Preferably, the sidewall of the screw passes through the second circular hole, and the sidewall of the guide rod passes through the first circular hole.

[0013] The beneficial effects of this utility model are as follows: An adjustment mechanism is used to adjust the distance between the base plate and the top plate to accommodate the thickness of the hardware components. Starting the grinding gun causes the rotating shaft to rotate, which in turn drives the inner tube and the top plate to rotate. The inner tube then drives the base block to rotate, which in turn drives the outer tube to rotate. The base block drives the adjustment mechanism to rotate, which in turn drives the base plate to rotate. This allows the base plate and the top plate to synchronously drive the second grinding discs. The hardware components are then placed between the two second grinding discs, allowing them to simultaneously grind the upper and lower surfaces of the hardware components. The first grinding disc can be used to grind one side of the hardware component, thus achieving both single-sided and double-sided grinding of the hardware components. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional top view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the screw of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide rod of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the outer tube of this utility model;

[0019] Figure 6 This is a schematic diagram of the base plate structure of this utility model.

[0020] Icon labels:

[0021] 1. Shaft; 2. Inner tube; 3. Base block; 4. Outer tube; 5. Grinding mechanism; 501. Top plate; 502. First grinding disc; 503. Second grinding disc; 504. Base plate; 505. Arc-shaped hole; 506. First round hole; 507. Inner hole; 508. Second round hole; 6. Outer hole; 7. Adjustment mechanism; 701. Screw; 702. Bottom nut; 703. Guide rod; 704. Spring; 705. Top nut. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Reference Appendix Figure 1-6 A double-sided polishing device for precision hardware parts includes a rotating shaft 1 mounted on the output end of a polishing gun, an inner tube 2 connected to the side wall of the rotating shaft 1, a base block 3 connected to the bottom end of the inner tube 2, an outer tube 4 connected to the side wall of the base block 3, four circumferentially arranged outer holes 6 on the side wall of the outer tube 4, a polishing mechanism 5 on the outer tube 4, and an adjustment mechanism 7 on the base block 3.

[0025] Reference Appendix Figure 1-6 The grinding mechanism 5 includes a top plate 501, a first grinding disc 502, a second grinding disc 503, a bottom plate 504, an arc-shaped hole 505, a first circular hole 506, an inner hole 507, and a second circular hole 508. The sidewall of the bottom plate 504 has four circumferentially arranged arc-shaped holes 505, an inner hole 507, two symmetrically arranged first circular holes 506, and two symmetrically arranged second circular holes 508. 08. The sidewall of the inner hole 507 is movably connected to the inner tube 2, and the sidewall of the arc-shaped hole 505 is movably connected to the sidewall of the outer tube 4. The top end of the inner tube 2, the top end of the rotating shaft 1, and the top end of the outer tube 4 are all fixedly connected to the bottom end of the top plate 501. The bottom end of the top plate 501 and the top end of the bottom plate 504 are both connected to the second grinding disc 503. The sidewall of the outer tube 4 passes through the second grinding disc 503. The outer diameter of the top plate 501 is equal to the outer diameter of the bottom plate 504. The sidewall of the bottom plate 504 passes through the outer hole 6.

[0026] The adjustment mechanism 7 is used to adjust the distance between the base plate 504 and the top plate 501 to accommodate the thickness of the hardware parts. The grinding gun is started, causing the rotating shaft 1 to rotate. The rotating shaft 1 drives the inner tube 2 and the top plate 501 to rotate. The inner tube 2 drives the base block 3 to rotate. The base block 3 and the top plate 501 drive the outer tube 4 to rotate. The base block 3 drives the adjustment mechanism 7 to rotate. The adjustment mechanism 7 drives the base plate 504 to rotate, so that the base plate 504 and the top plate 501 can synchronously drive the second grinding disc 503. The hardware parts are placed between the two second grinding discs 503, so that the two second grinding discs 503 can synchronously grind the upper and lower surfaces of the hardware parts. The first grinding disc 502 can be used to grind one side of the hardware parts, thereby achieving the effect of single-sided grinding and double-sided grinding of the hardware parts.

[0027] Reference Appendix Figure 3-5 The adjusting mechanism 7 includes a screw 701, a bottom nut 702, a guide rod 703, a spring 704, and a top nut 705. Two symmetrically distributed screws 701 are connected to the top of the base block 3, and two symmetrically distributed guide rods 703 are also connected to the top of the base block 3. The tops of the screws 701 and the guide rods 703 are connected to the top plate 501. The sidewall of the screw 701 passes through the second circular hole 508, and the sidewall of the guide rod 703 passes through the first circular hole 506. The bottom of the top plate 501 is connected to the spring 704, and the bottom of the spring 704 is connected to the base plate 504. The top nut 705 is threadedly connected to the sidewall of the screw 701, and the bottom nut 702 is also threadedly connected to the sidewall of the screw 701. The top nut 705 is located above the base plate 504, and the bottom nut 702 is located below the base plate 504.

[0028] The base plate 504 moves up and down, which in turn moves the first round hole 506 and the second round hole 508 up and down, thereby adjusting the distance between the base plate 504 and the top plate 501. Then, the bottom nut 702 and the top nut 705 clamp the base plate 504, so that the base plate 504 can be fixed as one piece with the screw 701, and thus the base plate 504 can rotate synchronously with the base block 3. When some hardware parts only need rough grinding, the bottom nut 702 and the top nut 705 can be loosened a little from the base plate 504, so that the base plate 504 has a certain degree of vertical movement, and there is room for the distance between the base plate 504 and the top plate 501 to move, so that the two second grinding discs 503 can better fit against the upper and lower ends of the hardware parts, thereby facilitating the adjustment of the distance between the base plate 504 and the top plate 501.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precision hardware parts double-sided polishing device, comprising a rotating shaft (1) mounted on the output end of a polishing gun, characterized in that, The side wall of the rotating shaft (1) is connected with an inner tube (2), the bottom end of the inner tube (2) is connected with a bottom block (3), the side wall of the bottom block (3) is connected with an outer tube (4), four outer holes (6) are arranged in the circumferential array on the side wall of the outer tube (4), the outer tube (4) is provided with a polishing mechanism (5), and the bottom block (3) is provided with an adjusting mechanism (7).

2. The precision hardware component double-sided polishing device according to claim 1, characterized in that, The polishing mechanism (5) comprises a top plate (501), a first polishing piece (502), a second polishing piece (503), a bottom plate (504), an arc-shaped hole (505), a first circular hole (506), an inner hole (507) and a second circular hole (508), four arc-shaped holes (505) are arranged in the circumferential array on the side wall of the bottom plate (504), the side wall of the bottom plate (504) is provided with an inner hole (507), two first circular holes (506) are arranged in the symmetrical distribution on the side wall of the bottom plate (504), two second circular holes (508) are arranged in the symmetrical distribution on the side wall of the bottom plate (504), the side wall of the inner hole (507) is movably connected with the inner tube (2) in an up-down mode, the side wall of the arc-shaped hole (505) is movably connected with the side wall of the outer tube (4) in an up-down mode, the top end of the inner tube (2), the top end of the rotating shaft (1) and the top end of the outer tube (4) are fixedly connected with the bottom end of the top plate (501), and the bottom end of the top plate (501) and the top end of the bottom plate (504) are connected with the second polishing piece (503).

3. The precision hardware component double-sided polishing device according to claim 2, characterized in that, The side wall of the outer tube (4) penetrates the second polishing piece (503).

4. The precision hardware component double-sided polishing device according to claim 2, characterized in that, The outer diameter of the top plate (501) is equal to the outer diameter of the bottom plate (504), and the side wall of the bottom plate (504) penetrates the outer hole (6).

5. The precision hardware component double-sided polishing apparatus according to claim 2, characterized in that, The adjusting mechanism (7) comprises a screw rod (701), a bottom nut (702), a guide rod (703), a spring (704) and a top nut (705), the top end of the bottom block (3) is connected with two symmetrically-distributed screw rods (701), the top end of the bottom block (3) is also connected with two symmetrically-distributed guide rods (703), the bottom end of the top plate (501) is connected with the spring (704), the bottom end of the spring (704) is connected with the bottom plate (504), the side wall of the screw rod (701) is threadedly connected with the top nut (705), and the side wall of the screw rod (701) is also threadedly connected with the bottom nut (702).

6. The precision hardware component double-sided polishing apparatus according to claim 5, characterized in that, The top end of the screw rod (701) and the top end of the guide rod (703) are connected with the top plate (501).

7. The precision hardware component double-sided polishing apparatus according to claim 5, characterized in that, The top nut (705) is located above the bottom plate (504), and the bottom nut (702) is located below the bottom plate (504).

8. The precision hardware component double-sided polishing apparatus according to claim 5, characterized in that, The side wall of the screw rod (701) penetrates the second circular hole (508), and the side wall of the guide rod (703) penetrates the first circular hole (506). The side wall of the screw rod (701) penetrates the second circular hole (508), and the side wall of the guide rod (703) penetrates the first circular hole (506).

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