Flash removing device for automobile body part machining

Abstract

The invention relates to a flash removing device for automobile body part machining, which comprises a base table and a multi-connected grinding assembly, a hydraulic assembly, a driving device, a clamp assembly and a servo motor are arranged on the base table, the grinding assembly comprises a multi-shaft mechanical arm and a multi-connected rack arranged on the multi-shaft mechanical arm, and a plurality of grinders are arranged on the multi-connected rack. According to the multi-shaft mechanical arm, the multi-connected polishers and the clamp assembly are arranged, so that the die-cast vehicle body parts are fixedly arranged in the mutually parallel direction, one multi-shaft mechanical arm can carry the multiple polishers for simultaneous polishing, and the hydraulic assembly is arranged to drive the clamp assembly to conduct positioning first and then clamping; the hydraulic assembly is driven without being connected with an electric wire, so that the clamp assembly can rotate at all angles in the polishing process, and wire harness winding does not need to be considered.

Description

Technical Field

[0001] The invention belongs to the field of body parts processing, and in particular relates to a flash removal device for processing automobile body parts. Background Art

[0002] During the processing of some car body parts, they need to be die-casted by a die-casting machine, and then the burrs and flash generated by the die-casting need to be removed by a grinding device. Most of the existing automobile production lines are fully automated workshops, and the body parts are transferred to the next level device for grinding after die-casting.

[0003] Since the production efficiency of the die-casting machine is higher than that of the flash removal device, when removing the flash, grinding devices need to be set up in multiple stations to adapt to the production efficiency of the die-casting machine. Since the body parts need to be polished around the edges after die-casting, generally each body part polishing station needs to be equipped with 3-4 multi-axis robotic arms equipped with grinding devices for polishing. In order to adapt to the efficiency of the production line, setting up multiple grinding stations requires a large amount of equipment and a large space, which occupies a large space and greatly increases the equipment cost. Summary of the invention

[0004] The object of the present invention is to provide a flash removal device for processing automobile body parts in order to solve the above-mentioned problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A flash removal device for automobile body parts processing comprises a base and a multi-jointed grinding assembly, wherein the base is provided with

[0007] A hydraulic assembly, which is used to transmit hydraulic pressure, comprises a connecting arm, two supporting arms arranged on the connecting arm, a rotating cylinder rotatably arranged between the two supporting arms, a pair of hydraulic pistons arranged in the rotating cylinder, and the hydraulic pistons radially extend to form side arms penetrating through the rotating cylinder;

[0008] A drive device for pushing the side arm to drive the hydraulic piston;

[0009] A clamp assembly is arranged at both ends of the rotating cylinder, and includes a positioning clamp and a fixing clamp. The hydraulic pressure transmitted by the hydraulic assembly first drives the positioning clamp and then drives the fixing clamp.

[0010] The servo motor is used to drive the rotating drum to rotate.

[0011] As a further preferred embodiment, the grinding assembly includes a multi-axis robotic arm and a multi-joint frame arranged on the multi-axis robotic arm, and a plurality of grinders are arranged on the multi-joint frame, wherein the grinders and the multi-joint frame are connected by an adjustment device for independently adjusting the angle of the grinder. In this scheme, by arranging a multi-joint grinder, each robotic arm can be equipped with multiple parallel grinders. For parallel clamped body parts, by synchronously controlling multiple grinders with one robotic arm, flash removal can be performed on multiple body parts at the same time, thereby greatly improving the processing efficiency.

[0012] As a further preferred embodiment, the surface of the rotating cylinder is axially provided with side grooves for sliding of the side arms, and the surface of the rotating cylinder is sleeved with a first spring for resetting the hydraulic piston, wherein one end of the first spring abuts against the side arm, and the other end abuts against a protrusion on the outer side of the rotating cylinder. In this embodiment, the side arm is driven to move by a driving device, thereby driving the hydraulic piston to output power, and the hydraulic piston is reset by the first spring. In this manner, there is no need to set wires on the clamp assembly to connect to an external device, and the clamp assembly can rotate at full angles to prevent the wires from being entangled during rotation, making it convenient for the body parts to continuously rotate and change the grinding position during the grinding process.

[0013] As a further preferred scheme, the driving device includes a turntable bearing sleeved on the outside of the rotating cylinder, the rotating surface of the turntable bearing abuts against the surface of the side arm, the driving device also includes a driving part arranged on the connecting arm, a bidirectional screw driven to rotate by the driven part, and two internally threaded sliders arranged on the bidirectional screw. The surface of the internally threaded slider is provided with a pair of connecting rods connected to the non-rotating side of the turntable bearing. The present scheme specifically proposes the structure of the driving device, which drives the bidirectional screw to rotate through the driving part, thereby driving the two internally threaded sliders to move toward the center, and pushing up the turntable bearing through the connecting rod. Furthermore, since the side arm will rotate with the rotating cylinder, the turntable bearing is arranged to make contact, so as to support the side arm without affecting the rotation of the side arm.

[0014] As a further preferred embodiment, the clamp assembly includes a base plate fixedly arranged at the end of the rotating cylinder, and the positioning clamp and the fixing clamp are both arranged on the base plate, wherein the positioning clamp is driven by a first hydraulic component, and the fixing clamp is driven by a second hydraulic component, and the first hydraulic component is connected to the rotating cylinder through a first connecting pipe, and the second hydraulic component is connected to the rotating cylinder through a second connecting pipe. In this embodiment, the base plate is used as the basis of the clamp, and the two clamps are driven by setting connecting pipes and hydraulic components, so that they can be positioned and clamped without electrical connection, and will not affect their full-angle rotation during grinding.

[0015] As a further preferred embodiment, a piston cylinder is provided at the end of the rotating cylinder, which is used to connect the first connecting tube and the second connecting tube in sequence, wherein a first outlet and a second outlet of different heights are provided on the side wall of the rotating cylinder near the end, the first outlet is connected to the first connecting tube, and the second outlet is connected to the second connecting tube. After the piston cylinder is pushed by the hydraulic pressure, the first outlet is opened first and then the second outlet is opened, and a flange is provided on the inner wall of the rotating cylinder to limit the sliding range of the piston cylinder. A second spring is also provided in the rotating cylinder to reset the piston cylinder to close the first outlet and the second outlet, and the advancement of the piston cylinder is controlled by the second spring. When the piston cylinder slides to leak out of the first outlet, the first hydraulic part corresponding to the positioning fixture is actuated first to position the body part, and then the positioning fixture reaches the predetermined position and is limited by the structure and no longer moves forward, and the piston cylinder continues to slide to open the second outlet, and the second hydraulic part is actuated to clamp the body part.

[0016] As a further preferred embodiment, a locking assembly is also provided on the surface of the piston cylinder for temporarily delaying the resetting of the piston cylinder when the pressure is released, and the locking assembly comprises a protruding portion arranged on the surface of the piston cylinder, a locking tongue is radially arranged on the protruding portion, the locking tongue is kept extended by a reset spring arranged in the protruding portion, and a through hole is provided on the surface of the rotating cylinder, and the protruding portion is locked by the locking tongue after passing through the through hole from the inside to the outside, and a pressure rod is provided on the surface of the fixing clamp for unlocking the locking tongue. When the hydraulic piston is pushed to reset by the first spring, in order to delay the resetting of the piston cylinder, the medium in the first hydraulic component and the second hydraulic component is first refluxed, and the piston cylinder is locked after reaching the maximum stroke through the locking assembly. When resetting, the fixing clamp retracts to unlock the locking tongue, and at this time the piston cylinder is pushed to reset by the second spring.

[0017] The present invention has at least the following beneficial effects:

[0018] The present invention arranges a multi-joint grinder and a clamp assembly so that the die-cast body parts are fixedly arranged in parallel directions, so that a multi-axis robot arm can carry multiple grinders for simultaneous grinding, and a hydraulic assembly is arranged to drive the clamp assembly to first position and then clamp. The hydraulic assembly drive does not require the connection of wires, so that the clamp assembly can rotate at all angles during the grinding process without considering the entanglement of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the hydraulic assembly, drive device and clamp assembly of the present invention.

[0021] Figure 3 The present invention Figure 2 A magnified view of the structure of part A.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating drum of the present invention.

[0023] Figure 5 The present invention Figure 3 Middle BB view.

[0024] Figure 6 The present invention Figure 4 Enlarged view of the structure of part C in the middle.

[0025] Figure 7 The present invention Figure 2 Enlarged view of the structure of part D in the middle.

[0026] In the figure: 1. base; 2. grinding assembly; 21. multi-axis mechanical arm; 22. multi-joint stand; 23. adjustment device; 24. grinder; 3. hydraulic assembly; 31. connecting arm; 32. support arm; 33. rotating cylinder; 34. side groove; 35. hydraulic piston; 36. side arm; 37. first spring; 38. piston cylinder; 39. first outlet; 310. second outlet; 311. second spring; 312. flange; 313. through hole; 314. locking tongue; 315. return spring; 4. driving device; 41. driving part; 42. two-way screw; 43. turntable bearing; 44. connecting rod; 45. internal thread slider; 5. fixture assembly; 51. base plate; 52. positioning fixture; 53. pressure rod; 54. fixing fixture; 55. first connecting pipe; 56. second connecting pipe; 57. first hydraulic component; 58. second hydraulic component; 6. servo motor. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings. It should be noted that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] Example 1

[0029] like Figure 1-7 As shown, a flash removal device for automobile body parts processing comprises a base 1 and a multi-jointed grinding assembly 2, wherein the base 1 is provided with

[0030] The hydraulic assembly 3 is used to transmit hydraulic pressure, and includes a connecting arm 31, two supporting arms 32 arranged on the connecting arm 31, and a rotating cylinder 33 rotatably arranged between the two supporting arms 32. A pair of hydraulic pistons 35 are arranged in the rotating cylinder 33, and the hydraulic pistons 35 extend radially to form side arms 36 that penetrate through the rotating cylinder 33;

[0031] A driving device 4, which is used to push the side arm 36 to drive the hydraulic piston 35;

[0032] The clamp assembly 5 is arranged at both ends of the rotating cylinder 33, and includes a positioning clamp 52 and a fixing clamp 54. The hydraulic pressure transmitted by the hydraulic assembly 3 first drives the positioning clamp 52 and then drives the fixing clamp 54;

[0033] The servo motor 6 is used to drive the rotating cylinder 33 to rotate.

[0034] This solution arranges the die-cast body parts in parallel directions by setting up a multi-joint grinder 24 and a clamp assembly 5, so that a multi-axis robot arm 21 can carry multiple grinders 24 for simultaneous grinding, and drives the clamp assembly 5 to first position and then clamp by setting a hydraulic assembly 3. The hydraulic assembly 3 does not need to be connected to the wires, so that the clamp assembly 5 can rotate at all angles during the grinding process without having to worry about wire entanglement.

[0035] The grinding assembly 2 includes a multi-axis robot arm 21 and a multi-joint frame 22 arranged on the multi-axis robot arm 21. The multi-joint frame 22 is provided with a plurality of grinders 24, wherein the grinder 24 and the multi-joint frame 22 are connected by an adjustment device 23 for independently adjusting the angle of the grinder 24. In this scheme, by setting a multi-joint grinder 24, each multi-axis robot arm 21 can carry a plurality of parallel grinders 24. For parallel clamped body parts, by synchronously controlling a plurality of grinders 24 with a multi-axis robot arm 21, flash removal can be performed on a plurality of body parts at the same time, which greatly improves the processing efficiency. Two groups are arranged on both sides of the base 1, and the body parts are guided to each workstation by an external guide device, and then uniformly positioned and fixed by the operation of the hydraulic assembly, and then uniformly polished by the multi-joint grinder 24. During the grinding process, the device on the other side of the base 1 loads and unloads the body parts.

[0036] The surface of the rotating cylinder 33 is axially provided with side grooves 34 for the side arms 36 to slide, and the surface of the rotating cylinder 33 is sleeved with a first spring 37 for resetting the hydraulic piston 35, wherein one end of the first spring 37 abuts against the side arms 36, and the other end abuts against the outer protrusion of the rotating cylinder 33. In this solution, the side arms 36 are driven to move by the driving device 4, thereby driving the hydraulic piston 35 to output power, and the hydraulic piston 35 is reset by the first spring 37. In this way, there is no need to set wires on the clamp assembly 5 to connect to external devices, and it can rotate at full angles to prevent the wires from being entangled during rotation, so that the body parts can be rotated continuously to change the grinding position during the grinding process.

[0037] The driving device 4 includes a turntable bearing 43 sleeved on the outside of the rotating cylinder 33, and the rotating surface of the turntable bearing 43 abuts against the surface of the side arm 36. The driving device 4 also includes a driving part 41 arranged on the connecting arm 31, a bidirectional screw rod 42 driven to rotate by the driven part 41, and two internally threaded sliders 45 arranged on the bidirectional screw rod 42. The surface of the internally threaded slider 45 is provided with a pair of connecting rods 44 connected to the non-rotating side of the turntable bearing 43. This scheme specifically proposes the structure of the driving device 4, which drives the bidirectional screw rod 42 to rotate through the driving part 41, thereby driving the two internally threaded sliders 45 to move toward the center, and pushing up the turntable bearing 43 through the connecting rod 44. Furthermore, since the side arm 36 will rotate with the rotating cylinder 33, the turntable bearing 43 is arranged to make contact, so as to support the side arm 36 without affecting the rotation of the side arm 36.

[0038] The clamp assembly 5 includes a base plate 51 fixedly arranged at the end of the rotating cylinder 33, and a positioning clamp 52 and a fixing clamp 54 are both arranged on the base plate 51, wherein the positioning clamp 52 is driven by a first hydraulic component 57, and the fixing clamp 54 is driven by a second hydraulic component 58, and the first hydraulic component 57 is connected to the rotating cylinder 33 through a first connecting pipe 55, and the second hydraulic component 58 is connected to the rotating cylinder 33 through a second connecting pipe 56. In this scheme, the base plate 51 is used as the basis of the clamp, and the two clamps are driven by setting connecting pipes and hydraulic components, so that they can be positioned and clamped without the need for electrical connection, and will not affect their full-angle rotation during grinding.

[0039] The end of the rotating cylinder 33 is provided with a piston cylinder 38, which is used to connect the first connecting pipe 55 and the second connecting pipe 56 in sequence. The side wall of the rotating cylinder 33 near the end is provided with a first outlet 39 and a second outlet 310 of different heights. The first outlet 39 is connected to the first connecting pipe 55, and the second outlet 310 is connected to the second connecting pipe 56. After the piston cylinder 38 is pushed by the hydraulic pressure, the first outlet 39 is opened first and then the second outlet 310 is opened. The inner wall of the rotating cylinder 33 is provided with a flange 312 to limit the sliding range of the piston cylinder 38. A second spring 311 is provided to reset the piston cylinder 38 to close the first outlet 39 and the second outlet 310. In this scheme, the advancement of the piston cylinder 38 is controlled by the second spring 311. Specifically, when the piston cylinder 38 slides to leak out of the first outlet 39, the first hydraulic component 57 corresponding to the positioning fixture 52 is first actuated to position the body part. Then, after the positioning fixture 52 reaches the predetermined position, it is limited by the structure and no longer moves forward. The piston cylinder 38 continues to slide to open the second outlet 310, and the second hydraulic component 58 is actuated to clamp the body part.

[0040] Each rotating cylinder 33 is provided with a clamp assembly 5 at both ends, and the corresponding clamp shape is set according to the shape of the body part. The clamp assembly 5 at the upper end of each rotating cylinder 33 and the clamp assembly 5 at the lower end of the upper rotating cylinder 33 correspond to the upper and lower surfaces of the same body part. Figure 1 As shown, at the uppermost or lowermost end of the rotating cylinder 33, a servo motor 6 is provided to perform synchronous driving in the same direction after clamping is completed.

[0041] The surface of the piston cylinder 38 is also provided with a locking assembly for temporarily delaying the resetting of the piston cylinder 38 when the pressure is released. The locking assembly comprises a protrusion provided on the surface of the piston cylinder 38, a locking tongue 314 is radially provided on the protrusion, and the locking tongue 314 is held extended by a reset spring 315 provided in the protrusion, and a through hole 313 is provided on the surface of the rotating cylinder 33, and the protrusion is locked by the locking tongue 314 after passing through the through hole 313 from the inside to the outside, and an oblique angle is provided on the surface of the locking tongue 314 so that the locking tongue 314 can pass through the through hole 313 in one direction and cannot automatically return, and the fixing clamp A pressure rod 53 is provided on the surface of the tool 54 for unlocking the locking tongue 314. When the hydraulic piston 35 is pushed to reset by the first spring 37, in order to delay the reset of the piston cylinder 38, the medium in the first hydraulic component 57 and the second hydraulic component 58 is first refluxed, and the piston cylinder 38 is locked after reaching the maximum stroke through the locking assembly. When resetting, the fixing clamp 54 retracts, and the locking tongue 413 is pressed by the pressure rod 53, so that the locking tongue 413 retracts, and the protrusion is retracted into the through hole 313. At this time, the piston cylinder 38 is pushed to reset by the second spring 311.

[0042] The specific implementation method is as follows: after die-casting, the body parts are introduced one by one between each clamp assembly 5 by the production line guiding device. Tracks and guiding devices (not shown in the figure) can be set according to the production line. After the body parts are fully assembled, the driving device 4 drives the hydraulic assembly 3 to operate, so that the clamp assembly 5 is first positioned and then fixed. Several body parts on the same side of the base 1 are aligned up and down and parallel to each other, and batch grinding is carried out through the grinding assembly 2. During the grinding process, the clamp assembly 5 and the hydraulic assembly 3 on the other side of the base 1 load and unload the body parts.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof shall not be construed as limiting the scope of the present invention. For those skilled in the art, several modifications and improvements may be made, which shall all fall within the protection scope of the present invention.

Claims

1. A flash removal device for automobile body parts processing, characterized in that: The invention comprises a base (1) and a multi-jointed grinding assembly (2), wherein the base (1) is provided with A hydraulic assembly (3) for transmitting hydraulic pressure, comprising a connecting arm (31), two supporting arms (32) arranged on the connecting arm (31), and a rotating cylinder (33) rotatably arranged between the two supporting arms (32), wherein a pair of hydraulic pistons (35) are arranged in the rotating cylinder (33), and the hydraulic pistons (35) extend radially to form side arms (36) penetrating the rotating cylinder (33); A driving device (4) for pushing the side arm (36) to drive the hydraulic piston (35); A clamp assembly (5) is arranged at both ends of the rotating cylinder (33), comprising a positioning clamp (52) and a fixing clamp (54), and the positioning clamp (52) is first driven and then the fixing clamp (54) is driven by the hydraulic pressure transmitted by the hydraulic assembly (3); The servo motor (6) is used to drive the rotating drum (33) to rotate.

2. The flash removal device for automobile body parts processing according to claim 1, characterized in that: The grinding assembly (2) comprises a multi-axis mechanical arm (21), a multi-joint frame (22) arranged on the multi-axis mechanical arm (21), and a plurality of grinders (24) are arranged on the multi-joint frame (22), wherein the grinders (24) and the multi-joint frame (22) are connected via an adjustment device (23) for independently adjusting the angle of the grinders (24).

3. The flash removal device for automobile body processing according to claim 1, characterized in that: The surface of the rotating cylinder (33) is provided with a side groove (34) along the axial direction for the side arm (36) to slide, and the surface of the rotating cylinder (33) is sleeved with a first spring (37) for resetting the hydraulic piston (35), wherein one end of the first spring (37) abuts against the side arm (36), and the other end abuts against the outer protrusion of the rotating cylinder (33).

4. The flash removal device for automobile body processing according to claim 3, characterized in that: The driving device (4) includes a turntable bearing (43) sleeved on the outside of the rotating cylinder (33), the rotating surface of the turntable bearing (43) abuts against the surface of the side arm (36), and the driving device (4) also includes a driving part (41) arranged on the connecting arm (31), a bidirectional screw rod (42) driven to rotate by the driving part (41), and two internally threaded sliders (45) arranged on the bidirectional screw rod (42), and the surface of the internally threaded slider (45) is provided with a pair of connecting rods (44) connected to the non-rotating side of the turntable bearing (43).

5. The flash removal device for automobile body processing according to claim 1, characterized in that: The clamp assembly (5) comprises a base plate (51) fixedly arranged at the end of the rotating cylinder (33), and a positioning clamp (52) and a fixing clamp (54) are both arranged on the base plate (51), wherein the positioning clamp (52) is driven by a first hydraulic component (57), and the fixing clamp (54) is driven by a second hydraulic component (58), and the first hydraulic component (57) is connected to the rotating cylinder (33) through a first connecting pipe (55), and the second hydraulic component (58) is connected to the rotating cylinder (33) through a second connecting pipe (56).

6. The flash removal device for automobile body processing according to claim 5, characterized in that: A piston cylinder (38) is provided at the end of the rotating cylinder (33) for connecting the first connecting tube (55) and the second connecting tube (56) in sequence, wherein a first outlet (39) and a second outlet (310) of different heights are provided on the side wall of the rotating cylinder (33) near the end, the first outlet (39) is connected to the first connecting tube (55), and the second outlet (310) is connected to the second connecting tube (56), and the piston cylinder (38) is hydraulically pushed to open the first outlet (39) and then the second outlet (310), and a flange (312) is provided on the inner wall of the rotating cylinder (33) to limit the sliding range of the piston cylinder (38), and a second spring (311) is also provided in the rotating cylinder (33) to reset the piston cylinder (38) to close the first outlet (39) and the second outlet (310).

7. The flash removal device for automobile body processing according to claim 6, characterized in that: The surface of the piston cylinder (38) is also provided with a locking assembly for temporarily delaying the resetting of the piston cylinder (38) when the pressure is released. The locking assembly comprises a protruding portion provided on the surface of the piston cylinder (38), a locking tongue (314) being radially provided on the protruding portion, the locking tongue (314) being held extended by a resetting spring (315) provided in the protruding portion, and a through hole (313) being provided on the surface of the rotating cylinder (33), the protruding portion being locked by the locking tongue (314) after passing through the through hole (313) from the inside to the outside, and a pressing rod (53) being provided on the surface of the fixing clamp (54) for unlocking the locking tongue (314).

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