Polishing equipment for metal curved surface

Abstract

The invention relates to the technical field of polishing equipment, in particular to polishing equipment for a metal curved surface, which comprises a rotating wheel, a bag body, abrasive paper and a transmission shaft, the bag body is arranged on the outer side of the rotating wheel so that the rotating wheel can drive the bag body to rotate, and the bag body is filled with liquid or gas to keep high pressure in the bag body. The abrasive paper is arranged on the outer side of the bag so that the bag can exert equal pressure on the abrasive paper, the transmission shaft is arranged at the rotating center of the rotating wheel so as to drive the rotating wheel to enable the abrasive paper to move relative to a polished metal piece, and the transmission shaft is in transmission connection with the rotating wheel. The polishing device has the beneficial effects that the bag body is used for pressing the abrasive paper to polish a metal piece, the polishing problem of uneven metal faces can be solved, the uneven metal faces bear equal polishing pressure, uniform polishing of different positions is achieved, the polishing device has great significance on polishing of metal welding positions, and the polishing effect is good. And automation of metal polishing is achieved, and labor is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, and in particular to a polishing equipment for metal curved surfaces. Background Art

[0002] The polishing of metal welds is difficult due to their different heights. It is also easy to over-polish some parts. The polishing margins are different in different places, which seriously affects the quality and appearance of the product, resulting in uneven transitions and unnatural connections. This type of polishing is particularly common in metal welds such as stair handrails, and there are also many parts that need to be polished in the welding of some equipment shells. Summary of the invention

[0003] In order to solve the problems in the above-mentioned background technology, the present invention provides a polishing device for metal curved surfaces, which is used for polishing metal curved surfaces and solves the problem of different polishing amounts of curved surface polishing in the prior art.

[0004] The solution adopted by the present invention to solve its technical problem is: a polishing device for metal curved surfaces, including a rotating wheel, a capsule, sandpaper, and a transmission shaft, wherein the capsule is arranged on the outside of the rotating wheel so that the rotating wheel can drive the capsule to rotate, the capsule is filled with liquid or gas to maintain high pressure inside the capsule, the sandpaper is arranged on the outside of the capsule so that the capsule applies isobaric pressure to the sandpaper, the transmission shaft is arranged at the rotation center of the rotating wheel so as to drive the rotating wheel to make the sandpaper move relative to the metal part being polished, and the transmission shaft is connected to the rotating wheel in a transmission manner.

[0005] In the above structure, the rotating wheel includes plywood on both sides and a circular ring in the middle. The circular ring is provided with a platform. The capsule and sandpaper are both in the shape of long strips so that the capsule and sandpaper can be placed in the annular groove formed by the two plywood. Both ends of the capsule and sandpaper are connected to the circular ring at the platform. The two sides of the sandpaper are placed in the plywood and the capsule so that the capsule presses and fixes the two sides of the sandpaper between the plywood and the capsule.

[0006] The above structure also includes a pressing plate, which is set as a flat plate so as to press the two ends of the capsule and the sandpaper tightly on the platform, and the pressing plate is connected to the ring by screws.

[0007] The above structure also includes a key. The rotating wheel and the transmission shaft are both provided with a keyway. The key is placed in the keyway on the rotating wheel and the transmission shaft to achieve transmission connection between the rotating wheel and the transmission shaft.

[0008] The above structure also includes a fixing plate, a transmission shaft through hole is set in the middle of the fixing plate, the fixing plate is sleeved on the transmission shaft, and the transmission shaft passes through the transmission shaft through the transmission shaft through hole on the transmission shaft fixing plate. The two fixing plates clamp the rotating wheel and the key in the middle so that the rotating wheel can move relative to the transmission shaft.

[0009] The above structure also includes a constant pressure stabilizer, which is connected to the sac so as to keep the pressure of the sac stable. The constant pressure stabilizer includes a spring, a cylinder, and a piston. The cylinder is cylindrical. An opening is set in the cylinder so that the pressure in the cylinder is equal to that in the sac. The spring and the piston are both placed in the cylinder. The spring is placed between the bottom of the cylinder and the piston so that the spring squeezes the piston to keep the sac at high pressure. When the pressure of the sac is higher than the pressure applied to the piston by the elastic force, the piston moves to the bottom of the cylinder to reduce the pressure in the sac.

[0010] The above structure also includes an oil cylinder, an oil pump, and an overflow valve. The inner cavity of the sac is connected to the inner cavity of the oil cylinder. The oil pump and the overflow valve are arranged on a pipeline connecting the inner cavity of the sac and the inner cavity of the oil cylinder so that the oil pump can continuously add hydraulic oil to the sac, and the overflow valve can discharge excess hydraulic oil so that the inner cavity pressure of the sac remains constant.

[0011] The above structure also includes a longitudinal moving mechanism and a base. The rotating wheel, the capsule, the sandpaper and the transmission shaft are all arranged on the base. The base is arranged on the longitudinal moving mechanism so that the sandpaper can be polished in the longitudinal direction.

[0012] The above structure also includes a transverse moving mechanism, and the longitudinal moving mechanism is arranged on the transverse moving mechanism so that the sandpaper can be polished in the transverse direction.

[0013] The above structure also includes a vertical moving mechanism, which is arranged between the longitudinal moving mechanism and the base so as to adjust the height of the sandpaper in the vertical direction.

[0014] The above structure also includes a swinging member and a motor. The swinging member is provided with an internal gear and an external gear, and the internal gear and the external gear are respectively arranged on different planes. The rotating shaft of the motor is provided with a first half gear and a second half gear, and the first half gear and the second half gear are respectively arranged on different planes. The first half gear is meshed with the internal gear, and the second half gear is meshed with the external gear. A swinging center hole is provided in the middle of the swinging member, and a transmission shaft is placed in the swinging center hole so that the transmission shaft is connected to the swinging member in transmission. The middle part of the first half gear and the middle part of the second half gear are on the same side of the rotating shaft of the motor.

[0015] In summary, the beneficial effects of the present invention are as follows: by using the capsule to press on the sandpaper to polish the metal parts, the problem of polishing the uneven metal surface can be solved, the pressure on the uneven metal surface during polishing is equal, and uniform polishing of different places is achieved. This is of great significance for solving the polishing of metal welding points, realizing the automation of metal polishing, and reducing labor.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 A three-dimensional diagram of the present invention from another angle;

[0019] Figure 3 An exploded view of the present invention;

[0020] Figure 4 It is an exploded view from another angle of the present invention;

[0021] Figure 5 is a schematic diagram of a constant pressure stabilizer;

[0022] Figure 6 is a three-dimensional diagram of the motor of the present invention;

[0023] Figure 7 It is a three-dimensional diagram of the motor of the present invention from another angle.

[0024] In the figure: 1. rotating wheel; 2. capsule; 3. sandpaper; 4. transmission shaft; 5. splint; 6. circular ring; 7. platform; 8. annular groove; 9. pressure plate; 10. key; 11. keyway; 12. fixing plate; 13. transmission shaft through hole; 14. constant pressure stabilizer; 15. spring; 16. cylinder body; 17. piston; 18. swinging member; 19. motor; 20. internal gear; 21. external gear; 22. first half gear; 23. second half gear; 24. swinging center hole. DETAILED DESCRIPTION

[0025] In order to make the content of the present invention more clearly understood, the present invention is further described below based on specific embodiments in conjunction with the accompanying drawings.

[0026] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0027] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] Referring to the accompanying drawings, a polishing device for metal curved surfaces includes a rotating wheel 1, a capsule 2, sandpaper 3, and a transmission shaft 4, wherein the capsule 2 is arranged on the outside of the rotating wheel 1 so that the rotating wheel 1 can drive the capsule 2 to rotate, the capsule 2 is filled with liquid or gas to maintain high pressure in the capsule 2, the sandpaper 3 is arranged on the outside of the capsule 2 so that the capsule 2 applies isobaric pressure to the sandpaper 3, the transmission shaft 4 is arranged at the rotation center of the rotating wheel 1 so as to drive the rotating wheel 1 to make the sandpaper 3 move relative to the metal part being polished, and the transmission shaft 4 is connected to the rotating wheel 1 in a transmission manner.

[0029] Furthermore, the rotating wheel 1 includes splints 5 on both sides and a circular ring 6 in the middle. The circular ring 6 is provided with a platform 7. The capsule 2 and the sandpaper 3 are both in the shape of long strips so that the capsule 2 and the sandpaper 3 can be placed in the annular groove 8 formed by the two splints 5. Both ends of the capsule 2 and the sandpaper 3 are connected to the circular ring 6 at the platform 7. The two sides of the sandpaper 3 are placed in the splints 5 and the capsule 2 so that the capsule 2 presses and fixes the two sides of the sandpaper 3 between the splints 5 and the capsule 2.

[0030] Furthermore, it also includes a pressing plate 9, which is set as a flat plate so as to press the two ends of the capsule 2 and the sandpaper 3 onto the platform 7, and the pressing plate 9 is connected to the ring 6 by screws.

[0031] Furthermore, a key 10 is included. Both the rotating wheel 1 and the transmission shaft 4 are provided with a key slot 11. The key 10 is placed in the key slot 11 on the rotating wheel 1 and the transmission shaft 4 to achieve transmission connection between the rotating wheel 1 and the transmission shaft 4.

[0032] Furthermore, it also includes a fixing plate 12, a transmission shaft through hole 13 is set in the middle of the fixing plate 12, the fixing plate 12 is sleeved on the transmission shaft 4, and the transmission shaft 4 passes through the transmission shaft through hole 13 on the fixing plate 12, and the two fixing plates 12 clamp the wheel 1 and the key 10 in the middle so that the wheel 1 can move relative to the transmission shaft 4.

[0033] Furthermore, a constant pressure stabilizer 14 is included, and the constant pressure stabilizer 14 is connected to the bladder 2 so as to keep the pressure of the bladder 2 stable.

[0034] Furthermore, the constant pressure stabilizer 14 includes a spring 15, a cylinder 16, and a piston 17. The cylinder 16 is cylindrical. An opening is provided in the cylinder 16 so that the pressure inside the cylinder 16 is equal to that of the capsule 2. The spring 15 and the piston 17 are both placed in the cylinder 16. The spring 15 is placed between the bottom of the cylinder 16 and the piston 17 so that the spring 15 squeezes the piston 17 to keep the capsule 2 at a high pressure. When the pressure of the capsule 2 is higher than the pressure applied by the elastic force on the piston 17, the piston 17 moves to the bottom of the cylinder 16 to reduce the pressure inside the capsule 2.

[0035] Furthermore, it also includes an oil cylinder, an oil pump, and an overflow valve. The inner cavity of the sac 2 is connected to the inner cavity of the oil cylinder. The oil pump and the overflow valve are arranged on a pipeline connecting the inner cavity of the sac 2 and the inner cavity of the oil cylinder so that the oil pump can continuously add hydraulic oil to the sac 2, and the overflow valve can discharge excess hydraulic oil so that the inner cavity pressure of the sac 2 remains constant.

[0036] Furthermore, it also includes a longitudinal moving mechanism and a base, on which the rotating wheel 1, the capsule 2, the sandpaper 3 and the transmission shaft 4 are all arranged, and the base is arranged on the longitudinal moving mechanism so that the sandpaper 3 can be polished in the longitudinal direction.

[0037] Furthermore, it also includes a transverse moving mechanism, and the longitudinal moving mechanism is arranged on the transverse moving mechanism so that the sandpaper 3 can be polished in the transverse direction.

[0038] Furthermore, it also includes a vertical moving mechanism, which is arranged between the longitudinal moving mechanism and the base so as to adjust the height of the sandpaper 3 in the vertical direction.

[0039] Furthermore, a motor 19 is included, the rotating shaft of the motor 19 is in driving connection with the transmission shaft 4, the motor 19 is a servo motor, and the motor 19 is configured to rotate an angle and then rotate the same angle in the opposite direction so as to make the sandpaper 3 form a swinging motion. In this way, the middle part of the sandpaper 3 can be polished.

[0040] Furthermore, it also includes a swing member 18 and a motor 19. The swing member 18 is provided with an internal gear 20 and an external gear 21, and the internal gear 20 and the external gear 21 are respectively arranged on different planes. A first half gear 22 and a second half gear 23 are respectively arranged on different planes on the rotating shaft of the motor 19. The first half gear 22 and the second half gear 23 are respectively arranged on different planes. The first half gear 22 is meshed with the internal gear 20, and the second half gear 23 is meshed with the external gear 21. A swing center hole 24 is provided in the middle of the swing member 18, and the transmission shaft 4 is placed in the swing center hole 24 so that the transmission shaft 4 is connected to the swing member 18 in transmission. The middle part of the first half gear 22 and the middle part of the second half gear 23 are on the same side of the rotating shaft of the motor 19. The first half gear 22 and the second half gear 23 are stacked together, which is less than or equal to one circle of the rotating shaft of the motor 19, that is, less than or equal to 360 degrees, wherein the angle of the first half gear 22 on the rotating shaft of the motor 19 is smaller than the angle of the second half gear 23 on the rotating shaft of the motor 19, such as Figure 6 , Figure 7 .

[0041] The present invention can solve the problem of polishing uneven metal surfaces by using the capsule 2 to press on the sandpaper 3 to polish the metal parts, so that the pressure on the uneven metal surface during polishing is equal, and uniform polishing of different places is achieved. This is of great significance for solving the polishing of metal welding points, realizing the automation of metal polishing, and reducing labor. Specifically, it has the following beneficial effects:

[0042] 1. The present invention can solve the problem of polishing uneven metal surfaces by using the capsule 2 to press on the sandpaper 3 to polish the metal parts, so that the pressure on the uneven metal surface during polishing is equal, and uniform polishing of different places is achieved. This is of great significance for solving the polishing of metal welding points, realizing the automation of metal polishing, and reducing labor;

[0043] 2. The present invention solves the problem of maintaining the pressure of the bladder 2 stable after the hydraulic system stops working by providing a constant pressure stabilizer 14, which is connected to the bladder 2 so as to maintain the pressure of the bladder 2 stable;

[0044] 3. The present invention uses a pressing plate 9, which is set as a flat plate so as to press the two ends of the capsule 2 and the sandpaper 3 onto the platform 7, so that the installation of the capsule 2 and the sandpaper 3 is simple, and the replacement of the sandpaper 3 is simple;

[0045] 4. By setting up the longitudinal moving mechanism, the lateral moving mechanism and the vertical moving mechanism, the polishing range of the sandpaper 3 is increased, which is more conducive to processing products with a large area that need to be polished;

[0046] 5. By setting the swinging member 18 and the motor 19, the capsule 2 and the sandpaper 3 are rotated in a swinging form for polishing, and the middle part of the sandpaper 3 is fully utilized for polishing, so that the polishing effect is better.

[0047] The embodiments described above are only preferred implementation modes of the present invention and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and modifications made by those skilled in the art on the basis of the invention shall fall within the protection scope of the present invention.

Claims

1. A polishing device for metal curved surfaces, characterized in that: It includes a rotating wheel, a capsule, sandpaper, and a transmission shaft, wherein the capsule is arranged on the outside of the rotating wheel so that the rotating wheel can drive the capsule to rotate, the capsule is filled with liquid or gas to maintain high pressure inside the capsule, the sandpaper is arranged on the outside of the capsule so that the capsule applies isobaric pressure to the sandpaper, the transmission shaft is arranged at the rotation center of the rotating wheel so as to drive the rotating wheel to make the sandpaper move relative to the metal part to be polished, and the transmission shaft is connected to the rotating wheel in a transmission manner.

2. The polishing device according to claim 1, characterized in that: The rotating wheel includes the clamping plates on both sides and the circular ring in the middle, the circular ring is provided with a platform, the capsule and the sandpaper are both in the shape of long strips so that the capsule and the sandpaper can be placed in the annular groove formed by the two clamping plates, both ends of the capsule and the sandpaper are connected to the circular ring at the platform, and the two sides of the sandpaper are placed in the clamping plates and the capsule so that the capsule presses and fixes the two sides of the sandpaper between the clamping plates and the capsule.

3. The polishing device according to claim 2, characterized in that: It also includes a pressing plate, which is configured as a flat plate so as to press the capsule and the two ends of the sandpaper tightly onto the platform, and the pressing plate is connected to the ring via screws.

4. The polishing device according to claim 1, characterized in that: It also includes a key fixing plate, the rotating wheel and the transmission shaft are both provided with key slots, the key is placed in the key slots on the rotating wheel and the transmission shaft to realize the transmission connection between the rotating wheel and the transmission shaft, the transmission shaft through hole is provided in the middle of the fixing plate, the fixing plate is sleeved on the transmission shaft, the transmission shaft passes through the transmission shaft through hole on the transmission shaft fixing plate, and the two fixing plates clamp the rotating wheel and the key in the middle so that the rotating wheel can move relative to the transmission shaft.

5. The polishing device according to claim 1, characterized in that: It also includes a constant pressure stabilizer, which is connected to the sac so as to keep the pressure of the sac stable. The constant pressure stabilizer includes a spring, a cylinder, and a piston. The cylinder is cylindrical. An opening is provided in the cylinder so that the pressure in the cylinder is equal to that in the sac. The spring and the piston are both placed in the cylinder. The spring is placed between the bottom of the cylinder and the piston so that the spring squeezes the piston to keep the sac at high pressure. When the pressure of the sac is higher than the pressure applied to the piston by the elastic force, the piston moves to the bottom of the cylinder to reduce the pressure in the sac.

6. The polishing device according to claim 1, characterized in that: It also includes an oil cylinder, an oil pump, and an overflow valve. The inner cavity of the sac is connected to the inner cavity of the oil cylinder. The oil pump and the overflow valve are arranged on a pipeline that connects the inner cavity of the sac with the inner cavity of the oil cylinder so that the oil pump can continuously add hydraulic oil to the sac, and the overflow valve can discharge excess hydraulic oil so that the inner cavity pressure of the sac remains constant.

7. The polishing device according to claim 1, characterized in that: It also includes a longitudinal moving mechanism and a base. The rotating wheel, the capsule, the sandpaper and the transmission shaft are all arranged on the base. The base is arranged on the longitudinal moving mechanism so that the sandpaper can be polished in the longitudinal direction.

8. The polishing device according to claim 7, characterized in that: It also includes a transverse moving mechanism, and the longitudinal moving mechanism is arranged on the transverse moving mechanism so that the sandpaper can be polished in the transverse direction.

9. The polishing device according to claim 7, characterized in that: It also includes a vertical moving mechanism, which is arranged between the longitudinal moving mechanism and the base so as to adjust the height of the sandpaper in the vertical direction.

10. The polishing device according to claim 1, characterized in that: It also includes a swinging member and a motor, wherein the swinging member is provided with an internal gear and an external gear, wherein the internal gear and the external gear are respectively arranged on different planes, and a first half gear and a second half gear are respectively arranged on different planes on the rotating shaft of the motor, wherein the first half gear and the second half gear are respectively arranged on different planes, wherein the first half gear is meshed with the internal gear, and the second half gear is meshed with the external gear, and a swinging center hole is provided in the middle of the swinging member, wherein the transmission shaft is placed in the swinging center hole so as to be transmission-connected to the swinging member, and the middle part of the first half gear and the middle part of the second half gear are on the same side of the rotating shaft of the motor.

Images