A laser head AB axis swing mechanism

Abstract

The application discloses a laser head AB axis swing mechanism, which comprises a U-shaped seat and a stop mechanism, a square frame is rotatably installed on the U-shaped seat, an A motor for controlling rotation of the square frame is also installed on the U-shaped seat, a B motor perpendicular to a driving shaft of the A motor is installed on the square frame, a rotating shaft two is installed on the driving shaft of the B motor, a disconnecting mechanism for disconnecting or connecting with the rotating shaft two is also installed on the square frame, a rotating shaft one is installed on the disconnecting mechanism, and a laser head is installed on the rotating shaft one, and the stop mechanism is used for positioning and stopping the rotating shaft one.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser welding, and particularly relates to an AB-axis swinging mechanism of a laser head. BACKGROUND

[0002] With the continuous development of laser processing technology, laser cutting, laser welding and other laser processing technologies are widely applied to industrial production. In the laser processing process, the positioning accuracy and swinging flexibility of the laser head directly affect the processing efficiency and processing quality.

[0003] The AB-axis swinging mechanism is a new type of laser head swinging mechanism, which can realize independent swinging of the laser head in the A-axis and B-axis directions. The existing problems of the prior art are:

[0004] (1) Insufficient swinging precision: due to the imperfection of the transmission mechanism and the control system, the existing AB-axis swinging mechanism is prone to precision deviation in the swinging process, resulting in unstable processing quality.

[0005] (2) Limited swinging range: the design of part of the AB-axis swinging mechanism has limitations, resulting in limited swinging range of the laser head, which is difficult to meet the multi-angle processing requirements of complex workpieces.

[0006] (3) Large start-stop time delay: resulting in low adjustment time effect in the process of rotation adjustment.

[0007] Therefore, it is necessary to provide an AB-axis swinging mechanism of a laser head to solve the problems in the background art. SUMMARY

[0008] To achieve the above-mentioned purpose, the application provides the following technical scheme: an AB-axis swinging mechanism of a laser head, comprising a U-shaped seat and a stop mechanism, a square frame is rotatably installed on the U-shaped seat, an A motor for controlling rotation of the square frame is also installed on the U-shaped seat, a B motor perpendicular to a driving shaft of the A motor is installed on the square frame, a second rotating shaft is installed on the driving shaft of the B motor, a disconnection mechanism for disconnecting or connecting the second rotating shaft is also installed on the square frame, a first rotating shaft is installed on the disconnection mechanism, a laser head is installed on the first rotating shaft, and the stop mechanism is used for positioning and stopping the first rotating shaft.

[0009] Further, the disconnecting mechanism comprises a rotating ring I connected with the square frame, a plurality of swing openings are arranged on the ring wall of the rotating ring I, a rotating column is installed at the center of the swing opening, a swing rod is rotatably installed on the rotating column, a sliding opening is arranged at the end of the swing rod away from the center of the rotating ring I, the end of the swing rod close to the center of the rotating ring I corresponds to the outer wall of the rotating shaft II, the end of the rotating ring I away from the rotating shaft II is fixedly connected with the rotating shaft I, a rotating ring II is also rotatably installed on the ring wall of the rotating ring I, a fixed column slidably connected with the sliding opening is installed on the side of the rotating ring II close to the swing rod, a gear ring I is installed on the outer wall of the rotating ring II, a control push rod is installed on the square frame, and a rack for engaging with the gear ring I is installed on the control push rod.

[0010] Further, the control push rod comprises a sliding rod installed on the square frame, a sliding cylinder is slidably installed on the sliding rod, the sliding cylinder and the sliding rod are connected through a spring, a magnetic block is installed at the end of the sliding cylinder away from the sliding rod, and an electromagnet is installed on the square frame at the side of the magnetic block away from the sliding cylinder.

[0011] Further, the outer wall of the rotating shaft II is provided with a rubber sleeve for cooperation with the swing rod.

[0012] Further, the rubber sleeve is provided with a rough groove in the axial direction.

[0013] Further, when the electromagnet and the magnetic block repel and separate, the swing rod is separated from the rubber sleeve.

[0014] Further, the stop mechanism comprises a fixed ring, a rotating ring III and a forward-reverse motor, the rotating ring III is rotatably installed on the rotating shaft I, the gear ring II is installed on the side of the rotating ring III close to the square frame, the stop block II is installed on the side of the rotating ring III away from the square frame, the forward-reverse motor is installed on the square frame, the gear ring II is installed on the output end of the forward-reverse motor, the fixed ring is fixed on the rotating shaft I, and the stop block I corresponding to the stop block II is installed on the fixed ring.

[0015] Further, the stop block II is provided with a buffer pad on each side.

[0016] Further, the stop block I is provided with a conductor, and the stop block II is provided with a magnet attracting the conductor.

[0017] Compared with the prior art, the present application provides a laser head AB axis swing mechanism, which has the following advantages:

[0018] The application further improves the swing precision of the laser head adjustment through the structural design of the disconnecting mechanism and the stop mechanism, so that the B motor can drive the rotating shaft to rotate in a continuous acceleration mode each time the laser head is adjusted, and when the laser head is adjusted to the required position, the power output by the B motor to the rotating shaft is directly disconnected, thereby shortening the time when the laser head is adjusted to the required position, and making the efficiency of adjusting the laser head higher, wherein the A motor does not rotate during the adjustment process of the laser head, and does not interfere with the material to be processed, so that the rotatable angle of the A shaft is larger. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the AB axis swing mechanism of the laser head of the application;

[0020] Figure 2 It is a schematic diagram of the stop mechanism of the application;

[0021] Figure 3 It is a schematic diagram of the gear ring two structure of the application;

[0022] Figure 4 It is a schematic diagram of the disconnecting mechanism structure of the application;

[0023] Figure 5 It is a schematic diagram of the rotating shaft one structure of the application;

[0024] Figure 6 It is a schematic diagram of the stop block two structure of the application;

[0025] Figure 7 It is a schematic diagram of the conductor structure of the application;

[0026] In the figure: 1, U-shaped seat; 2, square frame; 3, A motor; 4, laser head; 5, B motor; 6, disconnecting mechanism; 7, stop mechanism; 8, rotating shaft one; 9, rotating shaft two; 61, rotating ring one; 62, swing rod; 63, rotating ring two; 64, sliding rod; 65, sliding cylinder; 66, spring; 67, rack; 68, magnetic block; 69, electromagnet; 611, swing port; 612, rotating column; 621, sliding port; 631, fixed column; 632, gear ring one; 71, fixed ring; 72, rotating ring three; 73, forward and reverse motor; 74, gear; 711, stop block one; 7111, conductor; 721, stop block two; 722, gear ring two; 7211, buffer pad; 7212, magnet; 91, rubber sleeve; 911, rough groove. DETAILED DESCRIPTION

[0027] REFERENCE Figures 1-7The application provides a technical scheme: a laser head AB axis swing mechanism, which comprises a U-shaped seat 1 and a stop mechanism 7, the U-shaped seat 1 is rotationally provided with a square frame 2, and the U-shaped seat 1 is also provided with an A motor 3 for controlling the rotation of the square frame 2, the square frame 2 is provided with a B motor 5 which is perpendicular to the driving shaft of the A motor 3, the driving shaft of the B motor 5 is provided with a rotating shaft two 9, the square frame 2 is also provided with a disconnecting mechanism 6 for disconnecting or connecting the rotating shaft two 9, the disconnecting mechanism 6 is provided with a rotating shaft one 8, and the rotating shaft one 8 is provided with a laser head 4, and the stop mechanism 7 is used for positioning and stopping the rotating shaft one 8.

[0028] In the embodiment, the disconnecting mechanism 6 comprises a rotating ring one 61 which is rotationally connected with the square frame 2, a plurality of swing openings 611 are circumferentially arranged on the ring wall of the rotating ring one 61, a rotating column 612 is arranged at the center of the swing opening 611, a swing rod 62 is rotationally arranged on the rotating column 612, a sliding opening 621 is arranged at one end of the swing rod 62 which is away from the center of the rotating ring one 61, one end of the swing rod 62 which is close to the center of the rotating ring one 61 corresponds to the outer wall of the rotating shaft two 9, one end of the rotating ring one 61 which is away from the rotating shaft two 9 is fixedly connected with the rotating shaft one 8, and a rotating ring two 63 is also rotationally arranged on the ring wall of the rotating ring one 61, a fixing column 631 which is slidably connected with the sliding opening 621 is arranged on the side of the rotating ring two 63 which is close to the swing rod 62, a gear ring one 632 is arranged on the outer wall of the rotating ring two 63, a control push rod is arranged on the square frame 2, and a rack 67 which is used for meshing with the gear ring one 632 is arranged on the control push rod; the control push rod is controlled to push the rack 67 to move, the gear ring one 632 is pushed to rotate by the rack 67, the rotating ring two 63 is driven to rotate by the gear ring one 632, the fixing column 631 is driven to slide along the sliding opening 621 by the rotating ring two 63, and the swing rod 62 is swung by the fixing column 631, so that the swing rod 62 is in contact with or separated from the rubber sleeve 91; specifically, when the laser head 4 needs to be adjusted, the swing rod 62 is controlled to be in contact with the rubber sleeve 91, the rotating shaft two 9, the rotating ring one 61 and the rotating shaft one 8 are synchronously rotated, at least the B motor 5 is started, and the laser head 4 is regulated and controlled, when the laser head 4 is adjusted to the required position, the control push rod is started, the swing rod 62 is separated from the rubber sleeve 91, the rotating shaft one 8 is positioned and stopped under the action of the stop mechanism 7, and the power output from the B motor 5 to the rotating shaft one 8 is instantaneously disconnected, so that the B motor 5 can drive the rotating shaft one 8 to rotate in a continuously accelerated driving mode every time the laser head 4 is adjusted, when the laser head 4 is adjusted to the required position, the power output from the B motor 5 to the rotating shaft one 8 is directly disconnected, so that the time for the laser head 4 to be adjusted to the required position is shortened, and the efficiency of regulating and controlling the laser head 4 is higher.

[0029] In the embodiment, the control push rod comprises a slide rod 64 mounted on the square frame 2, a slide cylinder 65 sliding on the slide rod 64, the slide cylinder 65 being connected with the slide rod 64 through a spring 66, a magnetic block 68 being mounted on the end of the slide cylinder 65 away from the slide rod 64, and an electromagnet 69 being mounted on the square frame 2 at the side of the magnetic block 68 away from the slide cylinder 65; specifically, when the electromagnet 69 is not started, the swing rod 62 is in contact with the rubber sleeve 91, and when the electromagnet 69 is not started, the electromagnet 69 repels the magnetic block 68, thereby driving the swing rod 62 to be separated from the rubber sleeve 91.

[0030] In the embodiment, the outer wall of the rotating shaft two 9 is provided with a rubber sleeve 91 for cooperation with the swing rod 62; the wear effect of the end of the swing rod 62 is reduced.

[0031] In the embodiment, the rubber sleeve 91 is provided with a rough axial groove 911; the accuracy of the contact connection of the swing rod 62 is improved.

[0032] In the embodiment, when the electromagnet 69 repels and separates from the magnetic block 68, the swing rod 64 is separated from the rubber sleeve 91.

[0033] In the embodiment, the stop mechanism 7 comprises a fixed ring 71, a rotating ring three 72, and a forward and reverse motor 73, the rotating ring three 72 being rotatably mounted on the rotating shaft one 8, a gear ring two 722 being mounted on the side of the rotating ring three 72 close to the square frame 2, a stop block two 721 being mounted on the side of the rotating ring three 72 away from the square frame 2, the forward and reverse motor 73 being mounted on the square frame 2, a gear 74 being mounted on the output end of the forward and reverse motor 73 and being engaged with the gear ring two 722, the fixed ring 71 being fixed on the rotating shaft one 8, and a stop block one 711 being mounted on the fixed ring 71 and corresponding to the stop block two 721; wherein, when the laser head 4 does not need to be adjusted, the stop block one 711 is in contact with the stop block two 721, and the swing rod 62 is also in contact with the rubber sleeve 91, and when the laser head 4 needs to be adjusted, the gear ring two 722 is first driven to rotate by the forward and reverse motor 73 through the gear 74, the stop block two 721 is adjusted to the position required by the stop block one 711, then the B motor 5 can be started to control and regulate the laser head 4, and when the stop block one 711 is in contact with the stop block two 721, the control push rod is started, thereby completing the adjustment and stop of the laser head 4.

[0034] In the embodiment, the two side surfaces of the stop block two 721 are respectively provided with a buffer pad 7211; so as to facilitate the contact and adhesion of the stop block one 711 and the stop block two 721.

[0035] In the embodiment, a conductor 7111 is mounted in the stop block one 711, and a magnet 7212 is mounted in the stop block two 721 and is attracted to the conductor 7111; so that the stop block one 711 and the stop block two 721 have strong contact and adhesion strength, thereby stopping and positioning the rotating shaft one 8.

[0036] In the specific implementation, initially, the block one 711 is in contact with the block two 721, and the swing lever 62 is in contact with the rubber sleeve 91. When the laser head 4 needs to be adjusted, first, the gear ring two 722 is driven to rotate by the positive and negative motor 73 driving the gear 74, so as to adjust the block two 721 to the position required by the block one 711. Then, the B motor 5 can be started to control the laser head 4. When the block one 711 is in contact with the block two 721, the control push rod is started, so that the adjustment and stop of the laser head 4 are completed. When the B motor 5 is stopped, the control push rod is closed again, and the swing lever 62 and the rubber sleeve 91 are in contact again.

[0037] The above is only a preferred specific implementation of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A laser head AB axis swing mechanism comprising a U-shaped seat (1) and a stop mechanism (7), characterized in that, The U-shaped seat (1) is rotatably connected with a square frame (2), and the U-shaped seat (1) is also provided with an A motor (3) for controlling the rotation of the square frame (2); the square frame (2) is provided with a B motor (5) perpendicular to the driving shaft of the A motor (3); the driving shaft of the B motor (5) is provided with a rotating shaft two (9); the square frame (2) is also provided with a disconnecting mechanism (6) for disconnecting or connecting the rotating shaft two (9); the disconnecting mechanism (6) is provided with a rotating shaft one (8); the rotating shaft one (8) is provided with a laser head (4); and the stop mechanism (7) is used for positioning and stopping the rotating shaft one (8). The disconnecting mechanism (6) comprises a rotating ring one (61) rotatably connected with the square frame (2); a plurality of swing openings (611) are circumferentially arranged on the ring wall of the rotating ring one (61); a rotating column (612) is arranged at the center of the swing opening (611); a swing rod (62) is rotatably arranged on the rotating column (612); a sliding opening (621) is arranged at one end of the swing rod (62) away from the center of the rotating ring one (61); one end of the swing rod (62) close to the center of the rotating ring one (61) corresponds to the outer wall of the rotating shaft two (9); one end of the rotating ring one (61) away from the rotating shaft two (9) is fixedly connected with the rotating shaft one (8); and a rotating ring two (63) is also rotatably arranged on the ring wall of the rotating ring one (61); a fixed column (631) slidably connected with the sliding opening (621) is arranged on the side of the rotating ring two (63) close to the swing rod (62); a gear ring one (632) is arranged on the outer wall of the rotating ring two (63); and the square frame (2) is provided with a control push rod, and the control push rod is provided with a rack (67) for engaging with the gear ring one (632). The outer wall of the rotating shaft two (9) is provided with a rubber sleeve (91) for cooperating with the swing rod (62); and the rubber sleeve (91) is provided with a rough groove (911) in the axial direction.

2. The AB axis swing mechanism of the laser head according to claim 1, wherein, The control push rod comprises a sliding rod (64) arranged on the square frame (2); a sliding cylinder (65) is slidably arranged on the sliding rod (64); the sliding cylinder (65) and the sliding rod (64) are connected through a spring (66); one end of the sliding cylinder (65) away from the sliding rod (64) is provided with a magnetic block (68); and one side of the magnetic block (68) away from the sliding cylinder (65) is provided with an electromagnet (69) arranged on the square frame (2).

3. The AB axis swing mechanism of the laser head according to claim 2, wherein, When the electromagnet (69) and the magnetic block (68) repel and separate, the swing rod (62) is separated from the rubber sleeve (91).

4. The AB axis swing mechanism of the laser head according to claim 1, wherein, The stop mechanism (7) comprises a fixed ring (71), a rotating ring three (72) and a forward and reverse motor (73); the rotating ring three (72) is rotatably arranged on the rotating shaft one (8); a gear ring two (722) is arranged on the side of the rotating ring three (72) close to the square frame (2); a stop block two (721) is arranged on the side of the rotating ring three (72) away from the square frame (2); the forward and reverse motor (73) is arranged on the square frame (2); a gear (74) engaged with the gear ring two (722) is arranged on the output end of the forward and reverse motor (73); the fixed ring (71) is fixed on the rotating shaft one (8); and a stop block one (711) corresponding to the stop block two (721) is arranged on the fixed ring (71).

5. The AB axis swing mechanism of the laser head according to claim 4, wherein, Two sides of the stopper two (721) are respectively provided with buffer pads (7211).

6. The AB axis wobble mechanism of the laser head according to claim 4, wherein The stopper one (711) is provided with a conductor (7111), and the stopper two (721) is respectively provided with a magnet (7212) which is attracted to the conductor (7111).

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