Visual sliding correction device for mounting head of high-speed chip mounter

Abstract

The utility model discloses a high-speed chip mounter mounting head visual sliding correction device which comprises a mounting head assembly, a rod-shaped linear motor driving assembly is arranged on the back face of the lower end of the mounting head assembly, a sliding camera is arranged on the rod-shaped linear motor driving assembly, and the sliding camera is located at the lower end of the mounting head assembly. According to the utility model, the rod-shaped linear motor is adopted for driving, no extra transmission mechanism is needed, the structure is simple, the response speed is fast, the grating or magnetic grating ruler is adopted to realize the full closed loop of the rotor position, and the position error of the camera can be directly reflected and corrected in real time, so that the precision is higher; in addition, linear correction from the rotation angle of the motor to the linear displacement of the lead screw is not needed, and production and debugging are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paster machine technical field especially relates to a high -speed paster machine pastes head vision sliding correction device. BACKGROUND

[0002] The paster head of the paster machine needs to carry out vision correction to the position and angle of the component sucked on the paster head before mounting the component, in order to improve the efficiency, a plurality of suction nozzles are generally configured on the paster head, but only a single line-scan camera is equipped for saving cost, in order to carry out vision correction to the components on the plurality of suction nozzles with the single line-scan camera, the line-scan camera is generally arranged below the suction nozzles and can slide back and forth along the direction of the suction nozzle arrangement, the line-scan camera is moved to one side before the suction nozzles suck the components, so as to leave space for the suction nozzles to suck the components downward, when all the suction nozzles complete the component sucking, the suction nozzles are moved upward to above the line-scan camera and just located on the focal plane of the line-scan camera, at this time, the line-scan camera is controlled to move uniformly from one side to the other side, the line-scan camera synchronously scans and photographs the suction nozzles along with the position change, finally an image containing information of all the components is obtained, and the position and angle of the components on the image are identified, compared with the ideal position and angle, the component sucking deviation can be obtained, and the deviation is compensated in subsequent mounting to realize correction.

[0003] Since the high-speed paster machine hopes to deliver the taken components to the mounting position as soon as possible for mounting, the correction speed is required to be high, one scheme adopts synchronous belt transmission, the disadvantage of which is that the synchronous belt is prone to elastic deformation when running at high speed, resulting in position fluctuation of the line-scan camera, the camera imaging is prone to jelly effect distortion, the position and angle identification precision of the components is reduced, and then the correction precision is affected, another scheme adopts gear set and screw rod transmission, the disadvantage of which is that the mechanical structure is relatively complex, there may be linear error from the rotation angle of the motor to the linear displacement of the screw rod, and a special jig needs to be used for calibration and correction in production, which is inconvenient for production. UTILITARY MODEL CONTENTS

[0004] Therefore, the utility model provides a high-speed paster machine paster head vision sliding correction device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A high-speed paster machine paster head vision sliding correction device, comprising a paster head assembly, a rod-shaped linear motor driving assembly is arranged on the back surface of the lower end of the paster head assembly, a sliding camera is arranged on the rod-shaped linear motor driving assembly, and the sliding camera is located at the lower end of the paster head assembly.

[0007] As a further improvement of the above technical scheme:

[0008] Preferably, the rod linear motor driving assembly comprises a rod linear motor stator fixedly arranged on the back of the head sticking assembly, a rod linear motor mover slidingly arranged on the rod linear motor stator, guide sliders fixedly arranged on the upper and lower sides of the rod linear motor mover, linear guides fixedly arranged on the back of the head sticking assembly and located on the upper and lower sides of the rod linear motor stator, the guide sliders are slidingly connected to the linear guides, and the sliding camera is arranged on the lower guide slider.

[0009] Preferably, the back of the head sticking assembly is provided with a support plate, and a tank chain is arranged on the support plate and arranged on the rod linear motor mover at the other end.

[0010] Preferably, the support plate is in a U-shaped form.

[0011] Preferably, the back of the head sticking assembly is provided with a photoelectric switch, and a switch baffle is arranged on the rod linear motor mover, and the cooperation between the switch baffle and the photoelectric switch determines the initial position of the rod linear motor mover.

[0012] Preferably, the back of the head sticking assembly is provided with a position measuring assembly for reading the real-time position of the rod linear motor mover.

[0013] Preferably, the position measuring assembly comprises a grating ruler arranged on the back of the head sticking assembly and parallel to the rod linear motor stator, and a grating reading head arranged on the rod linear motor mover.

[0014] Preferably, the position measuring assembly comprises a magnetic grating ruler arranged on the back of the head sticking assembly and parallel to the rod linear motor stator, and a magnetic grating reading head arranged on the rod linear motor mover.

[0015] Preferably, the back of the head sticking assembly is provided with a mounting plate for mounting the driving assembly.

[0016] Compared with the prior art, the head sticking device has the advantages that:

[0017] The rod linear motor driving device is adopted, and no additional transmission mechanism is needed, so that the structure is simple, the response speed is fast, the grating or magnetic grating ruler is adopted to realize the full closed loop of the mover position, the position error of the camera can be directly reflected and corrected in real time, the precision is higher, and the linear correction of the motor rotation angle to the linear displacement of the screw rod is not needed, and production debugging is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole front perspective structural schematic view of the head sticking device.

[0019] Figure 2The whole reverse side three-dimensional structure schematic diagram of the utility model shows that

[0020] Figure 3 For Figure 2 The middle A area amplification structure schematic diagram.

[0021] In the figure: 1, the head sticking assembly; 2, the rod linear motor stator; 3, the rod linear motor mover; 4, the guide slider; 5, the linear guide rail; 6, the support plate; 7, the tank chain; 8, the photoelectric switch; 9, the switch baffle; 10, the grating ruler; 11, the grating reading head; 12, the mounting plate; 13, the sliding camera. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0024] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] As shown in the drawings, Figure 1 The main body of the technical scheme is the head sticking assembly 1, which is the same as the prior art, mainly including rack, linear motor, lifting assembly, rotary driver, detection plate, head sticking and the like.

[0026] The main improvement point of the technical scheme is the moving structure of the sliding motor, as shown in the drawings, Figure 2 As shown in the drawings, Figure 3 The structure is as follows:

[0027] The back of the head assembly 1 is provided with a mounting plate 12, the rod-shaped linear motor stator 2 is transversely mounted on the mounting plate 12, the rod-shaped linear motor mover 3 is slidably connected to the rod-shaped linear motor stator 2, and the guide sliding block 4 is connected to the upper and lower ends of the rod-shaped linear motor mover 3. The sliding camera 13 is mounted on the uppermost guide sliding block 4 and is located below the head assembly 1.

[0028] Meanwhile, two linear guides 5 parallel to the rod-shaped linear motor stator 2 are mounted on the mounting plate 12, and the guide sliding block 4 is slidably connected to the linear guide 5, so that the rod-shaped linear motor mover 3 can move left and right stably.

[0029] In order to ensure the stability between the wire and the transmission line during the left and right sliding process, the support plate 6 is arranged on the mounting plate 12, one end of the tank chain 7 is mounted on the support plate 6, and the other end of the tank chain 7 is mounted on the rod-shaped linear motor mover 3. Thus, the transmission line and the wire can be mounted in the tank chain 7 to ensure stability, and the support plate 6 is in the shape of a U, and the two connection points are located at the two ends of the linear guide 5, so that interference does not occur.

[0030] In order to accurately determine the initial position of the rod-shaped linear motor mover 3, the photoelectric switch 8 is mounted on one side of the linear guide 5, and the switch baffle 9 is mounted on the rod-shaped linear motor mover 3. Each time the rod-shaped linear motor moves to the side of the photoelectric switch 8 until it blocks the photoelectric switch 8, it stops, which is used as the initial running position.

[0031] In order to accurately determine the initial position of the rod-shaped linear motor mover 3, the photoelectric switch 8 is mounted on one side of the linear guide 5, and the switch baffle 9 is mounted on the rod-shaped linear motor mover 3. Each time the rod-shaped linear motor moves to the side of the photoelectric switch 8 until it blocks the photoelectric switch 8, it stops, which is used as the initial running position.

[0032] The operation process of the technical solution is as follows:

[0033] The sliding camera 13 is connected to the rod-shaped linear motor mover 3 and reciprocates below the head assembly 1. The grating reading head 11 or the magnetic grating reading head on the rod-shaped linear motor mover 3 is used to obtain the real-time position from the grating ruler 10 or the magnetic grating ruler arranged parallel to the rod-shaped linear motor stator 2. In addition, the rod-shaped linear motor mover 3 is provided with a photoelectric switch 8 on one side for detecting the initial position of the rod-shaped linear motor mover 3. Each time the mover moves to the side of the photoelectric switch 8 after power-on until it blocks the photoelectric switch 8, it stops, which is used as the initial running position.

[0034] The above merely is the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the present utility model is equivalent to replace or change within the technical range disclosed by the present utility model, and should be covered in the protection scope of the present utility model.

Claims

1. A high-speed patch machine head vision sliding correction device, comprising a head assembly (1), characterized in that, The lower end of the head sticking assembly (1) is provided with a rod-shaped linear motor driving assembly, and a sliding camera (13) is arranged on the rod-shaped linear motor driving assembly.

2. The high-speed patch machine head vision sliding correction device according to claim 1, wherein, The rod-shaped linear motor driving assembly comprises a rod-shaped linear motor stator (2) fixedly arranged on the back of the head sticking assembly (1), a rod-shaped linear motor mover (3) slidably arranged on the rod-shaped linear motor stator (2), guide sliders (4) fixedly arranged on the upper and lower sides of the rod-shaped linear motor mover (3), and linear guides (5) fixedly arranged on the back of the head sticking assembly (1) and located on the upper and lower sides of the rod-shaped linear motor stator (2), wherein the guide sliders (4) are slidably connected to the linear guides (5), and the sliding camera (13) is arranged on the lower guide slider (4).

3. The head vision slide correction device of high speed chip mounter according to claim 2, characterized in that, The back of the head sticking assembly (1) is provided with a support plate (6), and the support plate (6) is provided with a tank chain (7), and the other end of the tank chain (7) is arranged on the rod-shaped linear motor mover (3).

4. The head vision slide correction device of high speed chip mounter according to claim 3, characterized in that, The support plate (6) is in a U-shaped form.

5. The head vision slide correction device of high speed patch machine according to claim 2, wherein, The back of the head sticking assembly (1) is provided with a photoelectric switch (8), and the rod-shaped linear motor mover (3) is provided with a switch baffle (9), and the cooperation between the switch baffle (9) and the photoelectric switch (8) determines the initial position of the rod-shaped linear motor mover (3).

6. The head vision slide correction device of high speed patch machine according to claim 2, wherein, The back of the head sticking assembly (1) is provided with a position measuring assembly for reading the real-time position of the rod-shaped linear motor mover (3).

7. The head vision slide correction device of high speed patch machine according to claim 6, wherein, The position measuring assembly comprises a grating ruler (10) arranged on the back of the head sticking assembly (1) and parallel to the rod-shaped linear motor stator (2), and a grating reading head (11) arranged on the rod-shaped linear motor mover (3).

8. The head vision slide correction device of high speed patch machine according to claim 6, wherein, The position measuring assembly comprises a grating ruler arranged on the back of the head sticking assembly (1) and parallel to the rod-shaped linear motor stator (2), and a grating reading head arranged on the rod-shaped linear motor mover (3).

9. The high-speed patch machine head vision slide correction device according to claim 1, wherein, The back of the head sticking assembly (1) is provided with a mounting plate (12) for mounting the driving assembly.

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