A polishing device for automobile stamping parts

Abstract

The invention belongs to the field of polishing devices, and discloses a polishing device for automobile stamping parts. The polishing device for automobile stamping parts has a swing mechanism arranged at the connection between the driving shaft of the polishing motor and the air slip ring on the polishing base plate, so that the driving shaft of the polishing motor and the polishing base plate have a multi-directional deflection function, which can improve the adaptability of the bottom of the polishing base plate when contacting the surface of the stamping part with an irregular surface, improve the uniformity of the surface polishing and the polishing quality, and can also reduce the parameter setting accuracy when the mechanical arm drives the polishing base plate to contact the surface of the stamping part, so as to facilitate the control operation of the mechanical arm; at the same time, because the bottom of the polishing base plate is equipped with a central air cushion and an edge air cushion, it is convenient to use the principle of compressed air inflation to separately support the central air cushion and the edge air cushion separately or separately, so as to achieve the adjustment effect of different contact areas of the polishing plate surface under the same polishing plate, and it is more convenient to use.

Description

Technical Field

[0001] The invention relates to the field of polishing devices, and more particularly to a polishing device for automobile stamping parts. Background Art

[0002] In today's era of rapid development of the automobile industry, automobile stamping parts are key components in automobile manufacturing, and their surface quality directly affects the overall appearance and performance of the car. As consumers' requirements for automobile quality continue to increase, the surface treatment process of automobile stamping parts has become crucial. Therefore, when processing automobile stamping parts, it is usually necessary to use a polishing device to process the surface of the stamping parts to improve the surface quality of automobile stamping parts.

[0003] The polishing discs of the polishing devices widely used on the market are mostly directly installed on the driving shaft of the polishing motor. The connection between the driving shaft of the polishing motor and the polishing disc lacks a corresponding swing mechanism, resulting in uneven contact between the bottom of the polishing disc and the surface of the stamping part when polishing stamping parts with irregular surfaces, affecting the polishing quality. In addition, the existing widely used polishing discs have strong integrity and simple structure, and it is impossible to adjust different contact areas of the polishing disc surface under the same polishing disc, which is inconvenient to use. Therefore, we propose a polishing device for automotive stamping parts to solve the above-mentioned problems. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a polishing device for automobile stamping parts. By arranging a swing mechanism at the connection between the driving shaft of the polishing motor and the air slip ring on the polishing base plate, the driving shaft of the polishing motor and the polishing base plate have the function of multi-directional deflection, which can not only improve the adaptability of the bottom of the polishing base plate when contacting the surface of the stamping part with an irregular surface, improve the uniformity of the surface polishing and the polishing quality, but also reduce the parameter setting accuracy when the robot arm drives the polishing base plate to contact the surface of the stamping part, so as to facilitate the control operation of the robot arm; at the same time, since a central air cushion and an edge air cushion are installed at the bottom of the polishing base plate, it is convenient to use the principle of compressed air inflation to prop up the central air cushion and the edge air cushion separately or separately, so as to achieve the adjustment effect of different contact areas of the polishing plate surface under the same polishing plate, which is more convenient to use.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A polishing device for automobile stamping parts, comprising a mechanical arm, a polishing motor is arranged on the mechanical arm, and a swing mechanism, an air slip ring and a polishing base plate are arranged in sequence at the bottom of the polishing motor;

[0007] The swing mechanism comprises an upper base, a ball core and a lower base, the top of the upper base is fixedly installed on the end of the driving shaft at the bottom of the polishing motor by bolts, the bottom of the lower base is fixedly welded with a mounting portion, the bottom of the outer edge of the upper base is fixedly welded with a plurality of arc-shaped claws, and the plurality of arc-shaped claws are sleeved on the outside of the ball core in an embracing form, the top of the outer edge of the upper base is fixedly welded with a plurality of extension arms 1, and the outer edge of the lower base corresponding to the positions of the plurality of extension arms 1 is fixedly welded with a plurality of extension arms 2, an elastic support rod is provided between the corresponding extension arms 1 and the extension arms 2, the ends of the telescopic rods at both ends of the elastic support rod are fixedly installed with ball seats, and the ball seats are fixedly installed with the corresponding ends of the extension arms 1 or the extension arms 2;

[0008] A central air cushion is fixedly installed on the bottom of the polishing base plate by means of a first pressure ring and a plurality of screws, and an edge air cushion is also fixedly installed on the bottom of the polishing base plate by means of a second pressure ring and a plurality of screws. Both the central air cushion and the edge air cushion are hollow structures integrally injection-molded from rubber material, and both the central air cushion and the edge air cushion are fixedly adhered with elastic magic tape.

[0009] Furthermore, the air slip ring includes a rotor sliding shaft section and a stator casing section sleeved on the outside of the rotor sliding shaft section, the mounting seat portion at the top of the rotor sliding shaft section is fixedly installed with the bottom of the mounting portion by bolts, and the mounting seat portion at the bottom of the rotor sliding shaft section is fixedly installed with the top of the polishing base plate by bolts.

[0010] Furthermore, a plurality of the arc-shaped claws have inner walls each provided with a slide groove 1, and a slide groove 2 is provided on the outer wall of the ball core at the position corresponding to the slide groove 1, and the slide groove 1 and the slide groove 2 are in contact with each other through steel balls, and the upper base and the ball core are rotatably connected through the arc-shaped claws and the steel balls.

[0011] Furthermore, the elastic support rod includes a sleeve section and two telescopic rod sections, the ends of one end of the two telescopic rod sections are respectively fixedly welded to the ball heads of the corresponding ball seats, the ends of the other ends of the two telescopic rod sections both extend into the interior of the sleeve section, and the ends of the other ends of the two telescopic rod sections located inside the sleeve section are both fixedly welded with pistons, and the two pistons are connected by a support spring.

[0012] Furthermore, an air inlet pipe joint 1 and an air inlet pipe joint 2 are respectively fixedly installed on the stator casing section, and an air inlet hose 1 and an air inlet hose 2 are respectively fixedly connected to the air inlet pipe joint 1 and the air inlet pipe joint 2, an air outlet pipe joint 1 and an air outlet pipe joint 2 are respectively fixedly installed on the mounting seat portion at the bottom of the rotor sliding shaft section, and an air supply pipe joint 1 and an air supply pipe joint 2 are respectively fixedly installed on the polishing base plate, the air outlet pipe joint 1 and the air supply pipe joint 1 are connected by a connecting pipe 1, and the bottom of the air supply pipe joint 1 is connected to the interior of the central air cushion, the air outlet pipe joint 2 and the air supply pipe joint 2 are connected by a connecting pipe 2, and the bottom of the air supply pipe joint 2 is connected to the interior of the edge air cushion.

[0013] Furthermore, the edge roots of the central air cushion and the edge air cushion are both provided with a pleated edge structure for easy expansion and contraction.

[0014] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution, by providing a swing mechanism at the connection between the drive shaft of the polishing motor and the air slip ring on the polishing base plate, enables the drive shaft of the polishing motor and the polishing base plate to have a multi-directional deflection function, which can not only improve the adaptability of the bottom of the polishing base plate when contacting with the surface of the stamping part with an irregular surface, improve the uniformity and polishing quality of the surface, but also reduce the parameter setting accuracy when the robot arm drives the polishing base plate to contact the surface of the stamping part, thereby facilitating the control operation of the robot arm;

[0016] (2) In this solution, since a central air cushion and an edge air cushion are installed at the bottom of the polishing base plate, it is convenient to use the principle of compressed air inflation to prop up the central air cushion and the edge air cushion separately or separately, so as to achieve the effect of adjusting different contact areas of the polishing plate surface under the same polishing plate, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the central area.

[0019] Figure 3 It is a schematic diagram of the installation structure of the swing mechanism, the air slip ring and the polishing base plate of the present invention.

[0020] Figure 4 It is a schematic diagram of the split structure of the swing mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the top structure of the polishing base plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the bottom structure of the polishing base plate of the present invention.

[0023] Figure 7 It is a schematic diagram of the split structure of the bottom of the polishing base plate of the present invention.

[0024] Description of the numbers in the figure:

[0025] 1. Robotic arm; 2. Polishing motor;

[0026] 3. Swing mechanism; 4. Upper base; 5. Ball core; 501. Slide groove 2; 6. Lower base; 7. Mounting part; 8. Arc-shaped claw; 801. Slide groove 1; 9. Extension arm 1; 10. Extension arm 2; 11. Elastic support rod; 1101. Sleeve section; 1102. Telescopic rod section; 12. Ball seat; 13. Steel ball;

[0027] 14. Air slip ring; 15. Rotor sliding shaft section; 16. Stator housing section; 17. Air inlet pipe joint 1; 18. Air inlet pipe joint 2; 19. Air inlet hose 1; 20. Air inlet hose 2; 21. Air outlet pipe joint 1; 22. Air outlet pipe joint 2; 23. Air supply pipe joint 1; 24. Air supply pipe joint 2; 25. Connecting pipe 1; 26. Connecting pipe 2;

[0028] 27. Polished base plate; 28. Pressing ring 1; 29. ​​Center air cushion; 30. Pressing ring 2; 31. Edge air cushion; 32. Elastic magic sticky tape. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 7 , a polishing device for automobile stamping parts, comprising a mechanical arm 1, a polishing motor 2 is arranged on the mechanical arm 1, and a swing mechanism 3, an air slip ring 14 and a polishing base plate 27 are arranged in sequence at the bottom of the polishing motor 2;

[0031] The swing mechanism 3 includes an upper base 4, a ball core 5 and a lower base 6. The top of the upper base 4 is fixedly installed on the end of the driving shaft at the bottom of the polishing motor 2 by bolts. The bottom of the lower base 6 is fixedly welded with a mounting portion 7. The bottom of the outer edge of the upper base 4 is fixedly welded with a plurality of arc-shaped claws 8, and the plurality of arc-shaped claws 8 are sleeved on the outside of the ball core 5 in an embracing form. The top of the outer edge of the upper base 4 is fixedly welded with a plurality of extension arms 9. The outer edge of the lower base 6 corresponding to the positions of the plurality of extension arms 9 is fixedly welded with a plurality of extension arms 2 10. An elastic support rod 11 is provided between the corresponding extension arms 1 9 and the extension arms 2 10. The ends of the telescopic rods at both ends of the elastic support rod 11 are fixedly installed with ball seats 12, and the ball seats 12 are fixedly installed with the corresponding ends of the extension arms 1 9 or the extension arms 2 10.

[0032] A central air cushion 29 is fixedly installed at the bottom of the polishing base plate 27 through a pressure ring 1 28 and a plurality of screws, and an edge air cushion 31 is also fixedly installed at the bottom of the polishing base plate 27 through a group of pressure rings 2 30 and a plurality of screws. The central air cushion 29 and the edge air cushion 31 are hollow structures integrally injection-molded from rubber material, and elastic magic adhesive 32 is fixedly attached to the central air cushion 29 and the edge air cushion 31;

[0033] The air sliding ring 14 includes a rotor sliding shaft section 15 and a stator housing section 16 sleeved on the outer side of the rotor sliding shaft section 15. The mounting seat portion at the top of the rotor sliding shaft section 15 is fixedly mounted to the bottom of the mounting portion 7 by bolts, and the mounting seat portion at the bottom of the rotor sliding shaft section 15 is fixedly mounted to the top of the polishing base plate 27 by bolts.

[0034] An air inlet pipe joint 17 and an air inlet pipe joint 2 18 are fixedly mounted on the stator casing section 16, and an air inlet hose 19 and an air inlet hose 20 are fixedly connected to the air inlet pipe joint 17 and the air inlet pipe joint 2 18, respectively. An air outlet pipe joint 1 21 and an air outlet pipe joint 2 22 are fixedly mounted on the mounting seat at the bottom of the rotor sliding shaft section 15, and an air supply pipe joint 1 23 and an air supply pipe joint 2 24 are fixedly mounted on the polishing base plate 27, respectively. The air outlet pipe joint 1 21 and the air supply pipe joint 1 23 are connected by a connecting pipe 1 25, and the bottom of the air supply pipe joint 1 23 is connected to the inside of the center air cushion 29, the air outlet pipe joint 22 and the air supply pipe joint 24 are connected by a connecting pipe 2 26, and the bottom of the air supply pipe joint 24 is connected to the inside of the edge air cushion 31.

[0035] The operating principle of this automobile stamping parts polishing device is:

[0036] First, a flexible polishing pad that is compatible with the structure of the central air cushion 29 and the edge air cushion 31 is respectively attached to the central air cushion 29 and the edge air cushion 31 by means of elastic magic adhesive 32, and then the robot arm 1 and the polishing motor 2 are started, and the polishing base plate 27 is driven to approach and fit the surface of the stamping part, so as to facilitate contact polishing of the surface of the stamping part;

[0037] When the bottom of the polishing base plate 27 contacts the irregular surface of the stamping part, since the driving shaft at the bottom of the polishing motor 2 is fixedly installed with the top of the rotor sliding shaft section 15 on the polishing base plate 27 through the swing mechanism 3, and the upper base 4 of the swing mechanism 3 is rotatably connected with the ball core 5 through the arc-shaped claws 8 and the steel balls 13, when the bottom of the polishing base plate 27 contacts the surface of the stamping part, the bottom of the polishing base plate 27 can adaptively contact according to the angle of the stamping part surface, thereby reducing the uneven contact surface phenomenon. During this period, the ball core 5 is connected to the bottom of the upper base 4 through the steel balls 13 and the arc-shaped claws 8, which can not only realize the multi-directional deflection adjustment of the ball core 5, but also transmit the driving force output by the driving shaft at the bottom of the polishing motor 2 to the rotor sliding shaft section 15 of the air slip ring 14, thereby driving the polishing base plate 27 to rotate, and preventing interference with the rotation of the polishing base plate 27;

[0038] If it is necessary to polish the surface of the stamping part with a stepped surface structure, a relatively high-pressure compressed gas can be filled into the air inlet hose 19 and a relatively low-pressure compressed gas can be filled into the air inlet hose 20, so that the compressed gas passes through the air slip ring 14 (the specific structure and principle of the air slip ring are known public technologies, so they will not be described in detail here) and is discharged through the air outlet pipe joint 1 21 as compressed gas and through the air outlet pipe joint 2 22 as compressed gas. Then, the center air cushion 29 and the edge air cushion 31 are respectively in a relatively high-pressure expansion state and a relatively low-pressure contraction state through the connection pipe 1 25 and the connection pipe 2 26. At this time, the flexible polishing cotton discs attached to the center air cushion 29 and the edge air cushion 31 can polish the stepped surfaces of the stamping parts respectively, avoiding the phenomenon that the flexible polishing cotton discs are in the same polishing horizontal plane so that part of the surface of the stamping part is over-polished, thereby improving the polishing effect.

[0039] It should be noted that during use, in addition to using cable ties to tie the air intake hose 19 and the air intake hose 20 to the corresponding positions on the robot arm 1, the distance between the air intake hose 19 and the air intake hose 20 and the extension arm 19 and the extension arm 2 10 should also be controlled to prevent interference between the extension arm 19 and the extension arm 2 10 and the air intake hose 19 and the air intake hose 2 20 when the swing mechanism 3 rotates as a whole and the stator housing segment 16 does not rotate with it.

[0040] Embodiment 2: In view of the above embodiment 1, further description is given, referring to Figure 3 and Figure 4, a plurality of arc-shaped claws 8 have inner walls with a first slide groove 801, and a second slide groove 501 is provided on the outer wall of the ball core 5 at the position of the first slide groove 801, and the corresponding first slide groove 801 and the second slide groove 501 are in contact with each other through the steel ball 13, and the upper base 4 and the ball core 5 are rotatably connected through the arc-shaped claws 8 and the steel ball 13;

[0041] The arrangement of a plurality of arc-shaped claws 8 can encircle the ball core 5 to prevent the ball core 5 from falling off, and the arrangement of the steel balls 13 can support the connection, which facilitates the multi-directional rotation adjustment of the ball core 5 and satisfies the requirement of transmitting the driving force of the bottom driving shaft of the polishing motor 2 to the ball core 5 through the upper base 4, thereby driving the rotor sliding shaft section 15 of the air sliding ring 14 to rotate as a whole.

[0042] The elastic support rod 11 includes a sleeve section 1101 and two telescopic rod sections 1102. The ends of one end of the two telescopic rod sections 1102 are respectively fixedly welded to the ball heads of the corresponding ball seats 12. The ends of the other ends of the two telescopic rod sections 1102 extend into the sleeve section 1101. The ends of the other ends of the two telescopic rod sections 1102 located inside the sleeve section 1101 are both fixedly welded with pistons. The two pistons are connected by a support spring.

[0043] The setting of the elastic support rod 11 can provide support between the upper base 4 and the lower base 6, which does not interfere with the synchronous rotation of the lower base 6 when the ball core 5 rotates, and can also facilitate the resetting of the lower base 6.

[0044] The edge roots of the center air cushion 29 and the edge air cushion 31 are both provided with a pleated edge structure for easy expansion and contraction. This structural design provides a redundant structure for the expansion and contraction of the center air cushion 29 and the edge air cushion 31, thereby improving the structural stability and smoothness of the expansion and contraction of the center air cushion 29 and the edge air cushion 31.

[0045] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polishing device for automobile stamping parts, comprising a mechanical arm (1), characterized in that: The mechanical arm (1) is provided with a polishing motor (2), and the bottom of the polishing motor (2) is provided with a swing mechanism (3), an air slip ring (14) and a polishing base plate (27) in sequence; The swing mechanism (3) comprises an upper base (4), a ball core (5) and a lower base (6); the top of the upper base (4) is fixedly mounted on the end of the drive shaft at the bottom of the polishing motor (2) by bolts; the bottom of the lower base (6) is fixedly welded with a mounting portion (7); the bottom of the outer edge of the upper base (4) is fixedly welded with a plurality of arc-shaped claws (8), and the plurality of arc-shaped claws (8) are sleeved on the outside of the ball core (5) in an embracing form; the top of the outer edge of the upper base (4) is fixedly welded with a plurality of extension arms (9); the outer edge of the lower base (6) is fixedly welded with a plurality of extension arms (10) at the positions of the plurality of extension arms (10); an elastic support rod (11) is provided between the extension arms (9) and the extension arms (10); the ends of the telescopic rods at both ends of the elastic support rod (11) are fixedly mounted with ball seats (12); the ball seats (12) are fixedly mounted with the corresponding ends of the extension arms (9) or the extension arms (10); A central air cushion (29) is fixedly mounted on the bottom of the polishing base plate (27) by means of a first pressure ring (28) and a plurality of screws, and an edge air cushion (31) is also fixedly mounted on the bottom of the polishing base plate (27) by means of a second pressure ring (30) and a plurality of screws, the central air cushion (29) and the edge air cushion (31) are both hollow structures integrally injection-molded from a rubber material, and elastic magic adhesive (32) is fixedly adhered to the central air cushion (29) and the edge air cushion (31); The air sliding ring (14) comprises a rotor sliding shaft section (15) and a stator housing section (16) sleeved on the outside of the rotor sliding shaft section (15); the mounting seat portion at the top of the rotor sliding shaft section (15) is fixedly mounted to the bottom of the mounting portion (7) by means of bolts, and the mounting seat portion at the bottom of the rotor sliding shaft section (15) is fixedly mounted to the top of the polishing base plate (27) by means of bolts; An air inlet pipe joint 1 (17) and an air inlet pipe joint 2 (18) are fixedly mounted on the stator housing section (16), and an air inlet hose 1 (19) and an air inlet hose 2 (20) are fixedly connected to the air inlet pipe joint 1 (17) and the air inlet pipe joint 2 (18), respectively. An air outlet pipe joint 1 (21) and an air outlet pipe joint 2 (22) are fixedly mounted on the mounting seat at the bottom of the rotor sliding shaft section (15), and an air supply pipe joint 2 (21) and an air supply pipe joint 2 (22) are fixedly mounted on the polishing base plate (27). Connector 1 (23) and air supply pipe connector 2 (24), the air outlet pipe connector 1 (21) and the air supply pipe connector 1 (23) are connected via a connecting pipe 1 (25), and the bottom of the air supply pipe connector 1 (23) is connected to the interior of the central air cushion (29), the air outlet pipe connector 2 (22) and the air supply pipe connector 2 (24) are connected via a connecting pipe 2 (26), and the bottom of the air supply pipe connector 2 (24) is connected to the interior of the edge air cushion (31).

2. The automobile stamping parts polishing device according to claim 1, characterized in that: A plurality of the arc-shaped claws (8) are provided with a first slide groove (801) on their inner walls, and a second slide groove (501) is provided on the outer wall of the ball core (5) at the position corresponding to the first slide groove (801), and the first slide groove (801) and the second slide groove (501) are in contact with each other via a steel ball (13), and the upper base (4) and the ball core (5) are rotatably connected via the arc-shaped claws (8) and the steel ball (13).

3. The automobile stamping parts polishing device according to claim 1, characterized in that: The elastic support rod (11) comprises a sleeve section (1101) and two telescopic rod sections (1102); the ends of one end of the two telescopic rod sections (1102) are respectively fixedly welded to the ball heads of the corresponding ball seats (12); the ends of the other ends of the two telescopic rod sections (1102) extend into the interior of the sleeve section (1101); and the ends of the other ends of the two telescopic rod sections (1102) located inside the sleeve section (1101) are fixedly welded with pistons; the two pistons are connected via a support spring.

4. The automobile stamping parts polishing device according to claim 1, characterized in that: The edge roots of the central air cushion (29) and the edge air cushion (31) are both provided with a pleated edge structure that facilitates expansion and contraction.

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