MGV arm capable of calibrating cartridge

Abstract

The utility model relates to the field of manufacturing of liquid crystal display products, in particular to an MGV arm capable of calibrating a cartridge. Comprising a mechanical arm arranged on the MGV, a supporting arm used for directly bearing the cartridge is telescopically arranged on the mechanical arm, telescopic clamping PINs are arranged on three end faces of the supporting arm, a limiting block used for positioning the tail end of the bottom of the cartridge is arranged at the other end of the supporting arm, and a position sensing mechanism is arranged on the limiting block; the position sensing mechanism comprises an upper sensing mechanism used for sensing the lowest point of the cartridge and a lower sensing mechanism used for sensing the highest point of the clamping PIN. By designing the two position sensing mechanisms, the alignment accuracy of the arms of the MGV is improved, and the situation that errors caused by human eyes need to be adjusted many times is avoided; by designing the three clamping PINs and the limiting block, the arm of the MGV can accurately adjust the position of the cartridge, and the situation that the cartridge cannot be extracted due to slight deflection of the body of the MGV is avoided.

Description

Technical Field

[0001] The utility model relates to the manufacturing field of liquid crystal display products, in particular to an MGV vehicle arm capable of calibrating a cassette. Background Art

[0002] Nowadays, robotic arms are widely used automated mechanical devices in industrial manufacturing, medical treatment, military, semiconductor manufacturing and other fields. Although they have different forms, they all have one common feature, which is the ability to operate according to instructions. For applications in semiconductor manufacturing and display industries, commonly used robotic arms are used to transport chips and panels, as well as cassettes for carrying objects.

[0003] When the MGV (semi-automatic transporter) is taking the cassette, there is a problem of low alignment accuracy between the positioning block and the cassette. Manual alignment by the naked eye not only takes a lot of time, but also cannot guarantee the accuracy of alignment. If the MGV body is slightly tilted, the naked eye cannot accurately judge it, and blindly raising the arm will cause the positioning block to hit the cassette crossbar, which will not only cause the risk of fragmentation but also damage the equipment. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an MGV vehicle arm capable of calibrating a cassette, thereby improving the slow alignment and reducing the risk of fragmentation.

[0005] The utility model is achieved in this way:

[0006] An MGV vehicle arm capable of calibrating a cassette comprises a mechanical arm arranged on the MGV vehicle, the mechanical arm being retractably provided with a support arm for directly carrying the cassette, the support arm being provided with retractable clamping PINs on three end faces thereof, a limit block being provided on the other end for locating the bottom tail end of the cassette, a position sensing mechanism being provided on the limit block; the position sensing mechanism comprising an upper sensing mechanism for sensing the lowest point of the cassette, and a lower sensing mechanism for sensing the highest point of the clamping PIN.

[0007] Furthermore, the position sensing mechanism includes an infrared sensor.

[0008] Furthermore, the support arm is provided with a plurality of positioning blocks for positioning the cassette cross bar.

[0009] Furthermore, the positioning block is a conical positioning block.

[0010] Furthermore, the clamping PIN is connected to the support arm through a screw drive mechanism.

[0011] The advantages of the utility model are: the utility model improves the accuracy of the MGV arm's positioning by designing two position sensing mechanisms, avoiding the need for multiple adjustments due to the error caused by the human eye; and by designing three clamping PINs and a limit block, the MGV arm can accurately adjust the position of the cassette, avoiding the inability to extract the cassette due to a slight tilt of the MGV body. The details are as follows:

[0012] 1. The sensor can accurately adjust the distance the arm platform moves, avoiding the error caused by the human eye and requiring multiple adjustments.

[0013] 2. By clamping the PIN to adjust the position of the cassette, it can be avoided that the cassette cannot fit into the positioning block due to a slight tilt of the MGV body.

[0014] 3. By clamping the PIN and the limit block to reinforce the cassette on the arm platform, the shaking of the cassette during the driving of the MGV can be reduced, thereby reducing the risk of fragmentation of the glass base cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 The use state of the utility model Figure 1 .

[0018] Figure 3 The use state of the utility model Figure 2 .

[0019] Figure 4 for Figure 3 Top view of the center cassette location.

[0020] Figure 5 The use state of the utility model Figure 3 .

[0021] Figure 6 for Figure 5 Top view of the center cassette location.

[0022] Figure 7 The use state of the utility model Figure 4 .

[0023] Figure 8 for Figure 7 Top view of the center cassette location.

[0024] Fig. 9 The use state of the utility model Figure 5 .

[0025] Fig.10 The use state of the utility model Figure 6 .

[0026] Fig.11 The following is a flowchart of the prior art.

[0027] Fig.12 It is the work flow chart of the utility model.

[0028] The numbers in the figure are: MGV vehicle 100, mechanical arm 101, support arm 102, clamping PIN 1, front clamping PIN 11, left clamping PIN 12, right clamping PIN 12, limit block 2, position sensing mechanism 3, upper infrared sensor 31, lower infrared sensor 32, conical positioning block 4, screw 5, cassette 200, floating platform 201; the dotted line represents the detection position. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The technical solution of the utility model is as follows:

[0032] See also Figure 1 As shown, the utility model is an MGV vehicle arm capable of calibrating a cassette, comprising a mechanical arm 101 arranged on an MGV vehicle 100, wherein the mechanical arm 101 is retractably provided with a support arm 102 for directly carrying the cassette, wherein the support arm 102 is provided with retractable clamping PIN 1 (needle, which plays a fixing role) on its three end faces, and a limit block 2 for locating the bottom tail end of the cassette 200 is provided on the other end, and a position sensing mechanism 3 is provided on the limit block 2; the position sensing mechanism 3 comprises an upper sensing mechanism for sensing the lowest point of the cassette, and a lower sensing mechanism for sensing the highest point of the clamping PIN.

[0033] In a specific embodiment, the three clamping PINs 1 are respectively a front clamping PIN 11 , a left clamping PIN 12 , and a right clamping PIN 12 .

[0034] In a specific embodiment, the limit block 2 is a square limit block and is opposite to the front clamping PIN 11 .

[0035] In a specific embodiment, the position sensing mechanism may use a conventional infrared sensor, that is, the position sensing mechanism is divided into an upper infrared sensor 31 and a lower infrared sensor 32 .

[0036] In a specific embodiment, the support arm 102 is provided with a plurality of conical positioning blocks 4 for positioning the cross bar of the cassette to prevent the cassette from sliding.

[0037] In a specific embodiment, the clamping PIN 1 is connected to the support arm via a conventional screw drive mechanism, and a motor is used to drive the screw 5 to extend or retract, thereby extending or retracting the clamping PIN 1 .

[0038] The specific operation process is as follows:

[0039] 1. As Figure 2 As shown, the MGV 100 is aligned close to the transplanter, and the body of the MGV 100 is kept vertical, and the arm 101 is lowered to the set lowest point (the set lowest point must satisfy that the highest point of the clamping PIN 1 is smaller than the lowest point of the cassette 200).

[0040] 2. If Figure 3 and 4 As shown, the support arm 102 is moved forward and extended into the transplanter until the upper infrared sensor 31 senses the cassette 200 (the position of the upper infrared sensor 31 is higher than the clamping PIN

[0041] 1, and the arm can just detect the cassette 200 bar when it is at the set lowest point).

[0042] 3. Such as Figure 5 and 6 As shown, after opening the three clamping PINs, the arm 101 is moved upward until the lower infrared sensor 32 senses the cassette 100 and stops (the position of the lower infrared sensor 32 is higher than the highest point of the conical positioning block 4 and lower than the highest point of the clamping PIN 1).

[0043] 4. Such as Figure 7 and 8 As shown, the three clamping PINs are retracted to calibrate and fix the cassette 200, and the floating platform of the transplanter is locked after the cassette 200 is fixed.

[0044] 5. As Fig. 9 and 10As shown, open the three clamping PINs again and move the arm base upward until the cassette is completely separated from the floating platform, then retract the clamping PIN 1 to fix it and retract the arm.

[0045] Traditional transplanters and calibration only use the clamping wheel to return and fix the cassette. The subsequent cassette removal process also requires manual adjustment of the MGV arm position ( Fig.11 ), the naked eye error cannot guarantee accuracy. The utility model designs a square limit block, two infrared sensors and three clamping PINs for the mechanical arm of the MGV vehicle. First, the infrared sensor is used for accurate positioning, and then the square limit block and clamping PIN are used to calibrate the cassette, which can save time and avoid errors ( Fig.12 ).

[0046] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An MGV vehicle arm capable of calibrating a cassette, comprising a mechanical arm disposed on the MGV vehicle, wherein the mechanical arm is retractably provided with a support arm for directly carrying the cassette, Features: The support arm is provided with retractable clamping PINs on its three end faces, and a limit block for positioning the bottom tail end of the cassette is provided on the other end, and a position sensing mechanism is provided on the limit block; the position sensing mechanism includes an upper sensing mechanism for sensing the lowest point of the cassette, and a lower sensing mechanism for sensing the highest point of the clamping PIN.

2. The MGV vehicle arm capable of calibrating the cassette as claimed in claim 1, Features: The position sensing mechanism includes an infrared sensor.

3. The MGV vehicle arm capable of calibrating a cassette as claimed in claim 1, Features: The support arm is provided with a plurality of positioning blocks for positioning the cassette crossbar.

4. The MGV vehicle arm capable of calibrating the cassette as claimed in claim 3, Features: The positioning block is a conical positioning block.

5. The MGV vehicle arm capable of calibrating a cassette as claimed in claim 1, Features: The clamping PIN is connected to the support arm through a screw drive mechanism.

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