Polishing assembly and polishing device

Abstract

The utility model relates to the technical field of polishing processing equipment, and discloses a polishing assembly and a polishing device, the polishing assembly comprises a guide seat, a guide turntable and a polished piece, the bottom surface of the guide turntable is provided with a guide surface which periodically fluctuates along the circumferential direction, and the polishing surface of the polished piece and the guide surface are arranged back to back; the axial distance between the polishing face and the guiding face is equal at all positions in the circumferential direction, the guiding rotary disc and a polished piece are connected so as to rotate relative to the guiding base when driven, a supporting piece is arranged on the guiding base, and the supporting piece abuts against the guiding face so as to support the guiding rotary disc. The polishing position of the to-be-polished part can be automatically adjusted and matched, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a polishing component and polishing device. Background Technology

[0002] Polishing is a widely used abrasive processing method. It is required to improve the surface quality of metal and non-metal products, precision electromechanical products, and everyday consumer goods. The main purpose of polishing is to remove machining marks from the previous process, improve the surface roughness of parts, obtain a bright and smooth surface, increase aesthetics, and improve the fatigue and corrosion resistance of workpieces.

[0003] Prolonged exposure to humid and hot environments or improper storage can cause oxidation on the outer surface of metal parts, forming an oxide layer commonly known as a black coating. This oxide layer accelerates the corrosion process of the metal, leading to a decrease in its strength.

[0004] The removal of black coating is generally achieved by polishing the surface of metal parts with a polishing machine. In the process of polishing curved surfaces of metal parts, existing polishing machines generally rely on the experience of workers to adjust the grinding position of the curved surface according to the polishing situation, which has the problems of low polishing efficiency and high labor costs. Some polishing machines use CNC to precisely control the path of the polishing head, but the cost is huge.

[0005] Therefore, it is necessary to provide a polishing assembly that can automatically adjust and adapt the polishing position of a workpiece with a curved surface through a mechanical structure. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a polishing component that can automatically adjust and adapt the polishing position of the workpiece to be polished through a mechanical structure.

[0007] The technical problem to be solved by this utility model is to provide a polishing device that can automatically adjust and adapt the polishing position of the workpiece to be polished, and has a simple structure and low cost.

[0008] To solve the above-mentioned technical problems, this utility model provides a polishing assembly, including a guide seat, a guide turntable, and a workpiece to be polished. The bottom surface of the guide turntable is provided with a guide surface that undulates periodically along the circumference. The polishing surface of the workpiece to be polished is arranged opposite to the guide surface. The axial distance between the polishing surface and the guide surface is equal at all points along the circumference. The guide turntable is connected to the workpiece to be polished so that they rotate together relative to the guide seat when driven. The guide seat is provided with a support member, which abuts against the guide surface to support the guide turntable.

[0009] As an improvement to the above solution, the guide seat includes a base body and roller shafts arranged in a circumferential array along the base body. The support member is a guide roller disposed on the roller shafts. The roller shafts extend radially along the base body, and the guide rollers are rotatable around the roller shafts.

[0010] This utility model also provides a polishing device, which includes a rotary drive mechanism, a polishing mechanism, and the aforementioned polishing components. The polishing mechanism is provided with a grinding head for contacting the polishing surface. The rotary drive mechanism is used to drive the guide turntable to rotate together with the workpiece being polished. The contact position between the polishing surface and the grinding head is kept at the same height.

[0011] As an improvement to the above solution, a reciprocating drive mechanism is also included, wherein the rotation center of the guide turntable and the workpiece being polished is coplanar with the axis of the grinding head, and the reciprocating drive mechanism is used to drive the polishing mechanism to move along the axial direction of the grinding head.

[0012] As an improvement to the above solution, the reciprocating drive mechanism includes a slide table, a guide rail, a rocker arm, and a rocker wheel. The polishing mechanism is mounted on the slide table. The extension direction of the guide rail is parallel to the axial direction of the grinding head. The rocker wheel is provided with an eccentrically arranged rocker arm shaft. The two ends of the rocker arm are respectively connected to the rocker arm shaft and the slide table. The rocker wheel is driven to rotate, causing the slide table to reciprocate along the guide rail.

[0013] As an improvement to the above solution, the rotary drive mechanism includes a first drive motor, a first driven wheel, a second driven wheel, and a third driven wheel. The first driven wheel is driven by the drive wheel of the first drive motor via a first belt. The first driven wheel and the second driven wheel are connected to the same transmission shaft to rotate synchronously. The second driven wheel and the third driven wheel are driven by a second belt. The third driven wheel is coaxially connected to and rotates with the balance wheel.

[0014] As an improvement to the above solution, when the first driven wheel and the second driven wheel are driven to rotate, the transmission shaft generates an axial displacement relative to the first driven wheel and the second driven wheel.

[0015] As an improvement to the above solution, it also includes a frame, an adjusting screw, and an adjusting seat. The adjusting screw is rotatably mounted on the top of the frame, the guide rail is mounted on the adjusting seat, the bottom of the adjusting seat is connected to the frame by multiple sets of shock-absorbing springs, and the top of the adjusting seat abuts against the adjusting screw.

[0016] As an improvement to the above solution, the top of the adjusting seat is provided with a connector connected to the adjusting screw, and the connector is provided with a positioning element for abutting against the external thread of the adjusting screw.

[0017] As an improvement to the above solution, a counterweight is also included, which is connected to the drive shaft.

[0018] Implementing this utility model has the following beneficial effects:

[0019] This utility model discloses a polishing assembly. By setting a guide seat and a guide turntable, the workpiece to be polished is connected to the guide turntable. When the guide turntable and the workpiece to be polished are driven to rotate together, the guide surface on the guide turntable, which has a periodic undulation along the circumference, keeps in contact with the support member on the guide seat. As the guide surface makes contact with the support member at different positions, the polishing surface of the workpiece to be polished will also undulate. Since the distance between the polishing surface and the guide surface along the axial direction is equal at all points in the circumference, the originally periodic undulating polishing surface can be kept on the same plane. The mechanical structure realizes automatic adjustment and adaptation of the polishing position of the workpiece to be polished. It is particularly suitable for processing workpieces with periodic undulations.

[0020] Furthermore, this utility model also discloses a polishing device. By setting a guide seat and a guide turntable, the workpiece to be polished is connected to the guide turntable. When the rotary drive mechanism drives the guide turntable and the workpiece to be polished to rotate together, the guide surface on the guide turntable, which has a periodic undulation along the circumference, keeps in contact with the support member on the guide seat. As the guide surface makes contact with the support member at different positions, the polishing surface of the workpiece will also undulate. Since the distance between the polishing surface and the guide surface along the axial direction is equal at all points in the circumference, the originally periodic undulating polishing surface can keep in contact with the polishing head of the polishing mechanism on the same plane for polishing. This realizes automatic adjustment and adaptation of the polishing position of the workpiece. The position of the polishing head of the polishing mechanism does not change with the undulation of the polishing surface. The entire polishing assembly has a simple structure and low cost, and is particularly suitable for processing workpieces with periodic undulations in the polishing surface.

[0021] The polished surface of the workpiece after processing has increased impact resistance and hardness, and the friction when it is in contact with other parts during transmission or rolling is reduced, which can extend the service life of the product and reduce transmission noise. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an embodiment of a polishing component according to the present invention;

[0023] Figure 2 This is a schematic diagram of an embodiment of a polishing device according to the present invention;

[0024] Figure 3 yes Figure 2 Side view;

[0025] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure of part B;

[0026] Figure 5 yes Figure 2 A magnified structural diagram of section C;

[0027] Figure 6 This is a schematic diagram of the power input structure of a reciprocating drive mechanism. Detailed Implementation

[0028] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, this utility model discloses an embodiment of a polishing assembly, including a guide seat 1, a guide turntable 2, and a workpiece A to be polished. The bottom surface of the guide turntable 2 is provided with a guide surface 21 that undulates periodically along the circumference. The polishing surface A1 of the workpiece A to be polished is arranged back to back with the guide surface 21. The axial distance between the polishing surface A1 and the guide surface 21 is equal at all points along the circumference. The guide turntable 2 is connected to the workpiece A to rotate together relative to the guide seat 1 when driven. The guide seat 1 is provided with a support member, which abuts against the guide surface 21 to support the guide turntable 2.

[0030] In this embodiment, by setting a guide seat 1 and a guide turntable 2, the workpiece A to be ground is connected to the guide turntable 2. When the guide turntable 2 and the workpiece A to be ground are driven to rotate together, the guide surface 21 on the guide turntable 2, which has a periodic undulation along the circumference, keeps in contact with the support member on the guide seat 1. As the guide surface 21 makes contact with the support member at different positions, the grinding surface A1 of the workpiece A to be ground will also undulate. Since the distance between the grinding surface A1 and the guide surface 21 along the axial direction is equal at all points in the circumference, the grinding surface A1, which originally has a periodic undulation, can be kept on the same plane. The grinding position of the workpiece A to be ground is automatically adjusted and adapted through the mechanical structure. It is particularly suitable for processing workpiece A with a periodic undulation grinding surface A1.

[0031] Specifically, the guide seat 1 in this embodiment includes a base body 12 and roller shafts 13 arranged in a circumferential array along the base body 12. The base body 12 is fixedly connected to the frame 7. The roller shafts 13 extend radially along the base body 12. The support member 11 is a guide roller disposed on the roller shaft 13. The guide roller is mounted on the roller shaft 13 by bearings and can rotate around the roller shaft 13. That is, the support member 11 rotates around the roller shaft 13 as the guide turntable 2 rotates. In this embodiment, the base body 12 is cylindrical. The outer periphery of the bottom of the guide turntable 2 is provided with a downwardly protruding skirt 22. The skirt 22 encloses and forms a cavity adapted to the base body 12. The guide surface 21 on the guide turntable 2 is the end face of the skirt 22. In this embodiment, the guide turntable 2 and the workpiece A to be polished are connected by the drive disk 5. The guide turntable 2 and the workpiece A to be polished are respectively located on opposite sides of the drive disk 5. The drive disk 5 is connected to the transmission shaft 31 of the rotary drive mechanism so as to drive the guide turntable 2 and the workpiece A to rotate together around the transmission shaft 31.

[0032] In this embodiment, the roller shaft 13 is correspondingly arranged with the support member 11, and the number of roller shafts 13 in the array is consistent with the number of undulation cycles in the circumferential direction of the guide surface 21. The support member 11 is rotatably mounted on the guide seat 1. When the rotary drive mechanism drives the guide turntable 2 to rotate, the support member 11 and the guide surface 21 on the guide turntable 2 maintain rolling contact. The guide turntable 2 experiences less resistance when rotating, and the rotation process is smoother, which helps the grinding surface A1 of the workpiece A to be ground to be ground evenly.

[0033] In this embodiment, the guide surface 21 is preferably located on the bottom surface of the guide turntable 2, and the workpiece A to be polished is located above the guide turntable 2, with the polishing surface A1 located on the top surface of the workpiece A. During polishing, the support member 11 supports the guide turntable 2. When the guide turntable 2 rotates, different positions of the guide surface 21 contact the support member 11, thereby causing the workpiece A to be polished and the guide turntable 2 to move up and down while rotating. That is, under the guidance of the guide surface 21, the guide turntable 2 moves up and down.

[0034] like Figures 2 to 6As shown, this utility model also discloses an embodiment of a polishing device, including a guide seat 1, a guide turntable 2, a rotary drive mechanism, and a polishing mechanism 4. The guide seat 1 is provided with a support member 11. The guide turntable 2 is provided with a guide surface 21 that undulates periodically along the circumference. The guide surface 21 abuts against the rolling wheel surface of the support member 11. The guide turntable 2 is connected to the workpiece A to be polished, and the polishing surface A1 of the workpiece A to be polished is arranged opposite to the guide surface 21. The axial distance between the polishing surface A1 and the guide surface 21 is equal at all points along the circumference. The polishing mechanism 4 is provided with a grinding head 41 for contacting the polishing surface A1. The rotary drive mechanism is used to drive the guide turntable 2 and the workpiece A to rotate together. The contact position between the polishing surface and the grinding head 41 is always on the same plane.

[0035] In this embodiment, by setting a guide seat 1 and a guide turntable 2, the workpiece A to be polished is connected to the guide turntable 2. When the rotary drive mechanism drives the guide turntable 2 and the workpiece A to rotate together, the guide surface 21 on the guide turntable 2, which has a periodic undulation along the circumference, keeps in contact with the support member 11 on the guide seat 1. As the guide surface 21 makes contact with the support member 11 at different positions, the polishing surface A1 of the workpiece A will also undulate. Since the distance between the polishing surface A1 and the guide surface 21 along the axial direction is equal at all points in the circumference, the originally periodically undulating polishing surface A1 can keep in contact with the grinding head 41 of the polishing mechanism 4 on the same plane for polishing. This achieves automatic adjustment and adaptation of the polishing position of the workpiece A. The position of the grinding head 41 of the polishing mechanism 4 does not change with the undulation of the polishing surface A1. The entire polishing assembly has a simple structure and low cost, and is particularly suitable for processing workpiece A with a periodically undulating polishing surface A1.

[0036] In this embodiment, the grinding head 41 is located above the grinding surface A1, and the contact position between the grinding surface A1 and the grinding head 41 is always at the same height. When the polishing assembly of this embodiment polishes the workpiece A, the grinding surface A1 is located on the top surface of the workpiece A, and the guide surface 21 is located on the bottom surface of the guide turntable 2. In any direction on the outer periphery of the drive shaft 31, the grinding surface A1 and the guide surface 21 have the same slope. That is, if the guide turntable 2 is set to have the same outer diameter as the workpiece being polished, and the radial widths of the grinding surface A1 and the guide surface 21 are the same, then when the grinding surface A1 of the workpiece is put into contact with the guide surface 21 of the guide turntable 2, the grinding surface A1 and the guide surface 21 are nearly complementary, that is, nearly completely overlapped.

[0037] To prevent the workpiece A to be polished from jumping during rotation and lifting of the guide turntable 2, i.e., the guide surface 21 of the guide turntable 2 detaching from the support member 11, which would cause a sudden change in the polishing amount, this embodiment also includes a counterweight 312 connected to the drive shaft 31. The counterweight rotates and lifts together with the drive shaft 31, the polishing workpiece, and the guide turntable 2. Specifically, the workpiece A to be polished is connected to the drive disk 5. A pressure block 311 is provided between the guide turntable 2 and the drive disk 5. The guide turntable 2, pressure block 311, and drive disk 5 are locked together by bolts to prevent relative deflection. Furthermore, the end faces of the pressure block 311 and the drive disk 5 are locked together by a pressure cap 51 located in the central shaft hole of the polishing workpiece A, further preventing axial displacement of the guide turntable 2, pressure block 311, and drive disk 5. One end of the drive shaft 31 on the drive disk 5 is connected to the pressure block 311, and the other end is connected to the counterweight 312. The pressure block 311 increases the pressure area of ​​the guide turntable 2, resulting in better anti-jumping effect.

[0038] Preferably, the polishing assembly in this embodiment further includes a reciprocating drive mechanism. The rotation center of the guide turntable 2 and the workpiece A to be polished (i.e., the axis of the transmission shaft 31) is coplanar with the axis of the grinding head 41. The reciprocating drive mechanism is used to drive the polishing mechanism 4 to move along the axial direction of the grinding head 41 to approach or move away from the rotation center of the workpiece A to be polished. In this embodiment, the polishing surface A1 of the workpiece A to be polished only undergoes periodic height fluctuations in the circumferential direction, while remaining horizontal in the radial direction. That is, the guide surface 21 also only undergoes periodic height fluctuations in the circumferential direction, while its height remains constant in the radial direction. The grinding head 41 of the polishing mechanism 4 is horizontally arranged. The polishing mechanism 4 moves back and forth along the axial direction of the grinding head 41, which causes the grinding head 41 to move back and forth relative to the polishing surface A1. The contact between the grinding head 41 and the polishing surface A1 is more uniform, which can improve the polishing quality of the polishing surface A1 and also avoid the grinding head 41 from using the same position for polishing for a long time, thus extending the service life of the grinding head 41.

[0039] The reciprocating drive mechanism of this embodiment specifically includes a slide table 61, a guide rail 62, a rocker arm 63, and a rocker wheel 64. The second drive motor 42 of the polishing mechanism 4 drives the grinding head 41 to rotate. The second drive motor 42 is mounted on the slide table 61. The extension direction of the guide rail 62 is parallel to the axial direction of the grinding head 41. The rocker wheel 64 is provided with an eccentrically mounted rocker arm shaft 641. The two ends of the rocker arm 63 are respectively connected to the rocker arm shaft 641 and the slide table 61. The rocker wheel 64 is driven to rotate, causing the slide table 61 to reciprocate along the guide rail 62.

[0040] To accommodate different levels of polishing, this embodiment also includes an adjusting screw 8 rotatably mounted on the top of the frame 7, and a guide rail 62 horizontally mounted on the adjusting seat 9. The bottom of the adjusting seat 9 is connected to the frame 7 via multiple sets of damping springs 91, and the top of the adjusting seat 9 abuts against the adjusting screw 8. By driving the adjusting screw 8 to rotate via a handwheel 81 or similar means, the pressure applied to the adjusting seat 9 can be changed, thereby adjusting the height of the adjusting seat 9, i.e., the height of the grinding head 41.

[0041] In this embodiment, a connecting member 92 connected to the adjusting screw 8 is provided on the top of the adjusting seat 9. The connecting member 92 is provided with a positioning member 921 for abutting against the external thread of the adjusting screw 8. The positioning member 921 is threadedly connected to the connecting member 92. By rotating the positioning member 921, the positioning member 921 can be locked with the external thread of the adjusting screw 8, thereby keeping the adjusting seat 9 and the polishing mechanism 4 on it stably in the current position and ensuring the consistency of the polishing process.

[0042] The rotary drive mechanism in this embodiment specifically includes a first drive motor 32, a first driven wheel 33, a second driven wheel 34, and a third driven wheel 35. The first driven wheel 33 is driven by the drive wheel of the first drive motor 32 via a first belt 36. The first driven wheel 33 and the second driven wheel 34 are connected to the same transmission shaft 31 for synchronous rotation. The second driven wheel 34 and the third driven wheel 35 are driven by a second belt 37. The third driven wheel 35 is coaxially connected to and rotates with the balance wheel 64, and a sleeve 65 is provided on the shaft connecting the third driven wheel 35 and the balance wheel 64. The outer diameters of the first driven wheel 33, the second driven wheel 34, and the third driven wheel 35 decrease sequentially, and all three are rotatably connected to the frame 7. The first driven wheel 33 and the second driven wheel 34 can be formed as a single unit. When the first driven wheel 33 and the second driven wheel 34 are driven to rotate, the transmission shaft 31 generates an axial displacement relative to the first driven wheel 33 and the second driven wheel 34. That is, the first driven wheel 33, the second driven wheel 34, the third driven wheel 35, the first belt 36, and the second belt 37 are not affected by the height change when the guide turntable 2 rotates, resulting in smoother driving.

[0043] In this embodiment, the first drive motor 32 of the rotary drive mechanism serves not only as the power source for guiding the rotation of the turntable 2 and the workpiece A being polished, but also transmits the rotational power of the rotary drive mechanism to the polishing mechanism 4, causing the second drive motor 42 to move back and forth, so that the grinding head 41 moves back and forth on the polishing surface A1, improving the polishing quality, avoiding the grinding head 41 from using the same position for a long time, extending the service life of the grinding head 41, and making the entire polishing assembly drive structure simple and low in cost.

[0044] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A polishing assembly, characterized in that, The device includes a guide seat, a guide turntable, and a workpiece to be polished. The bottom surface of the guide turntable has a guide surface that undulates periodically along the circumference. The polishing surface of the workpiece to be polished is positioned opposite to the guide surface. The axial distance between the polishing surface and the guide surface is equal at all points along the circumference. The guide turntable is connected to the workpiece to be polished so that they rotate together relative to the guide seat when driven. The guide seat is provided with a support member, which abuts against the guide surface to support the guide turntable.

2. The polishing assembly as described in claim 1, characterized in that, The guide seat includes a base body and roller shafts arranged in a circumferential array along the base body. The support member is a guide roller disposed on the roller shaft. The roller shaft extends radially along the base body, and the guide roller is rotatable around the roller shaft.

3. A polishing apparatus, characterized in that, The invention includes a rotary drive mechanism, a polishing mechanism, and a polishing assembly as described in claim 1 or 2. The polishing mechanism is provided with a grinding head for contacting the polishing surface. The rotary drive mechanism is used to drive the guide turntable to rotate together with the workpiece being polished. The contact position between the polishing surface and the grinding head is kept at the same height.

4. The polishing apparatus as described in claim 3, characterized in that, It also includes a reciprocating drive mechanism, wherein the rotation center of the guide turntable and the workpiece being polished is coplanar with the axis of the grinding head, and the reciprocating drive mechanism is used to drive the polishing mechanism to move along the axial direction of the grinding head.

5. The polishing apparatus as described in claim 4, characterized in that, The reciprocating drive mechanism includes a slide table, a guide rail, a rocker arm, and a rocker wheel. The polishing mechanism is mounted on the slide table. The extension direction of the guide rail is parallel to the axial direction of the grinding head. The rocker wheel is provided with an eccentrically arranged rocker arm shaft. The two ends of the rocker arm are respectively connected to the rocker arm shaft and the slide table. The rocker wheel is driven to rotate, which drives the slide table to reciprocate along the guide rail.

6. The polishing apparatus as described in claim 5, characterized in that, The rotary drive mechanism includes a first drive motor, a first driven wheel, a second driven wheel, and a third driven wheel. The first driven wheel is driven by the drive wheel of the first drive motor via a first belt. The first driven wheel and the second driven wheel are connected to the same transmission shaft to rotate synchronously. The second driven wheel and the third driven wheel are driven by a second belt. The third driven wheel is coaxially connected to and rotates with the balance wheel.

7. The polishing apparatus as described in claim 6, characterized in that, When the first driven wheel and the second driven wheel are driven to rotate, the transmission shaft generates an axial displacement relative to the first driven wheel and the second driven wheel.

8. The polishing apparatus as described in claim 5, characterized in that, It also includes a frame, an adjusting screw, and an adjusting seat. The adjusting screw is rotatably mounted on the top of the frame, the guide rail is mounted on the adjusting seat, the bottom of the adjusting seat is connected to the frame by multiple sets of shock-absorbing springs, and the top of the adjusting seat abuts against the adjusting screw.

9. The polishing apparatus as described in claim 8, characterized in that, The top of the adjusting seat is provided with a connector that is connected to the adjusting screw, and the connector is provided with a positioning element for abutting against the external thread of the adjusting screw.

10. The polishing apparatus as claimed in claim 6, characterized in that, It also includes a counterweight, which is connected to the drive shaft.

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