Mechanism capable of automatically adapting to widths of different lead frames

Abstract

The utility model discloses a mechanism capable of automatically adapting to different lead frame widths, which belongs to the technical field of chip processing, and comprises a mounting frame, the top of the mounting frame is provided with four limiting rods for up-down limiting, and the mounting frame is also provided with two symmetrically arranged lifting electric cylinders. The lifting electric cylinder drives the mounting frame to move up and down, a first adjusting structure is arranged on the mounting frame, the first adjusting structure is in sliding fit with the mounting frame, a second adjusting structure is arranged on the first adjusting structure, and the second adjusting structure is in sliding fit with the first adjusting structure. The second adjusting structure is provided with a vacuum suction nozzle used for adsorbing the lead frame. According to the utility model, self-adaption is carried out according to the width position of the lead frame in the use process, and the lead frame can be better adsorbed.

Description

Technical Field

[0001] The utility model belongs to the technical field of chip processing, and in particular relates to a mechanism capable of automatically adapting to different lead frame widths. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials (gold wire, aluminum wire, copper wire) to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It acts as a bridge connecting to external wires. Lead frames are required in most semiconductor integrated blocks and are an important basic material in the electronic information industry.

[0003] The semiconductor production process often involves the problem of picking and placing semiconductor lead frames. There are many types of semiconductor lead frames. The current main lead frame models include SMA, SMB KBP, etc. The picking and placing of lead frames needs to adapt to the stacking method, and lead frames of different models and sizes need to be universal.

[0004] However, in the existing process of grasping the lead frame, the position and size during grasping are fixed, and the lead frame may encounter various types and categories of different sizes during grasping and loading. It is impossible to adjust and automatically adapt according to the size of the lead frame, which affects the grasping work of the lead frame. Utility Model Content

[0005] The embodiment of the utility model provides a mechanism that automatically adapts to different lead frame widths to solve the problems in the prior art.

[0006] An embodiment of the utility model adopts the following technical solution: a mechanism with automatic adaptation to different lead frame widths, including a mounting frame, the top of the mounting frame is provided with four limit rods for upper and lower limit, the mounting frame is also provided with two symmetrically arranged lifting electric cylinders, the lifting electric cylinders drive the position of the mounting frame to move up and down, the mounting frame is provided with a first adjustment structure, the first adjustment structure and the mounting frame are slidably matched, the first adjustment structure is provided with a second adjustment structure, the second adjustment structure and the first adjustment structure are slidably matched, and the second adjustment structure is provided with a vacuum suction nozzle for adsorbing the lead frame.

[0007] The utility model is self-adapting according to the width position of the lead frame during use, so as to better adsorb the lead frame.

[0008] Furthermore, the first adjustment structure includes an adjustment plate, an adjustment screw, an adjustment motor and two slide rods, the installation frame is provided with a slide groove, the two slide rods are symmetrically arranged on the installation frame, the adjustment screw rod is rotatably connected to the installation frame, the adjustment motor is located on the installation frame and the adjustment motor is transmission-connected to the adjustment screw rod, the adjustment screw rod is provided with an adjustment block threadedly connected to it, the adjustment plate is slidably connected to the installation frame, the adjustment block is provided with a support rod, the support rod is connected to the adjustment plate through the slide groove, the adjustment plate is provided with a number of oblique grooves, the two slide rods are provided with a number of sliders, the sliders are slidably fitted with the slide rods, and the slider is provided with a slide column slidably fitted with the oblique groove.

[0009] Furthermore, the intervals between the plurality of inclined slots are the same.

[0010] Furthermore, the second adjustment structure includes a bidirectional screw, an adjusting motor and two mounting sliding blocks. A sliding groove is provided in the slider, and the bidirectional screw is rotatably connected in the sliding groove. The adjusting motor is located in the slider and the bidirectional screw is connected to the main shaft of the adjusting motor. The two mounting sliding blocks are respectively threadedly connected to the bidirectional screw.

[0011] Furthermore, the vacuum nozzle is connected to the mounting sliding block.

[0012] At least one of the above technical solutions adopted in the embodiment of the present utility model can achieve the following beneficial effects:

[0013] First, when the utility model makes a preliminary adjustment to the position of the vacuum suction nozzle, the adjustment motor drives the adjustment screw to rotate on the mounting frame, thereby driving the position of the adjustment block to extend and move in the length direction of the adjustment screw, thereby driving the position of the adjustment plate to move on the mounting frame through the support rod. The movement of the position of the adjustment plate will drive the corresponding sliding column to move in the corresponding inclined groove, which will change the position spacing of several sliders, so that the positions of the vacuum suction nozzles adjacent to the sliders are at the same distance. When adjusting according to the width position of the lead frame in the subsequent process, it will adapt according to the width position of the lead frame during use to better adsorb the lead frame.

[0014] Secondly, when the position of the vacuum suction nozzle is adjusted according to the width of the lead frame, the utility model adjusts the motor to drive the position of the bidirectional screw to rotate, thereby driving the two mounting sliding blocks to move in opposite directions within the sliding groove, thereby adjusting the positions of the two adjacent vacuum suction nozzles according to the width position of the lead frame, so as to be suitable for the adsorption work of lead frames of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the first adjustment structure and the second adjustment structure in the utility model. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the first adjustment structure and the second adjustment structure in the utility model. Figure 2 ;

[0020] Reference numerals

[0021] Mounting frame 1, limiting rod 11, lifting cylinder 12, slide 13, first adjustment structure 2, adjustment plate 21, adjustment screw 22, adjustment motor 23, slide rod 24, adjustment block 25, support rod 26, inclined groove 27, slider 28, sliding groove 281, slide column 29, second adjustment structure 3, bidirectional screw 31, adjustment motor 32, installation slide block 33, vacuum nozzle 4. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] Reference Figures 1 to 4As shown, an embodiment of the utility model provides a mechanism that automatically adapts to different lead frame widths, including a mounting frame 1, the top of the mounting frame 1 is provided with four limit rods 11 for upper and lower limiting, the mounting frame 1 is also provided with two symmetrically arranged lifting electric cylinders 12, the lifting electric cylinders 12 drive the position of the mounting frame 1 to move up and down, the mounting frame 1 is provided with a first adjustment structure 2, the first adjustment structure 2 and the mounting frame 1 are slidably matched, the first adjustment structure 2 is provided with a second adjustment structure 3, the second adjustment structure 3 and the first adjustment structure 2 are slidably matched, and the second adjustment structure 3 is provided with a vacuum suction nozzle 4 for adsorbing the lead frame.

[0025] During use, the two lifting electric cylinders 12 drive the installation frame 1 to limit the position of the installation frame 1 moving up and down through the four limiting rods 11. When the position of the lead frame is grasped, the lead frame can be adsorbed by the vacuum suction nozzle 4. During the adsorption process, the first adjustment structure 2 first drives the vacuum suction nozzle 4 to perform preliminary adjustment work, and then the second adjustment structure 3 works to adjust the position of the vacuum suction nozzle 4 again, so that the position of the suction nozzle automatically adapts to the width of the lead frame and adsorbs the lead frame.

[0026] Preferably, the first adjustment structure 2 includes an adjustment plate 21, an adjustment screw rod 22, an adjustment motor 23 and two slide rods 24. The mounting frame 1 is provided with a slide groove 13, and the two slide rods 24 are symmetrically arranged on the mounting frame 1. The adjustment screw rod 22 is rotatably connected to the mounting frame 1, the adjustment motor 32 is located on the mounting frame 1 and the adjustment motor 23 is transmission connected to the adjustment screw rod 22, the adjustment screw rod 22 is provided with an adjustment block 25 threadedly connected thereto, the adjustment plate 21 is slidably connected to the mounting frame 1, the adjustment block 25 is provided with a support rod 26, and the support rod 26 passes through the slide groove 13 and is connected to the adjustment plate 21, the adjustment plate 21 is provided with a plurality of inclined grooves 27, and the two slide rods 24 are provided with a plurality of sliders 28, the sliders 28 are slidably matched with the slide rods 24, and the slider 28 is provided with a slide column 29 slidably matched with the inclined groove 27; the spacing between the plurality of inclined grooves 27 is the same.

[0027] When making a preliminary adjustment to the position of the vacuum suction nozzle 4, the adjustment motor 23 drives the adjustment screw 22 to rotate on the mounting frame 1, thereby driving the position of the adjustment block 25 to extend and move in the length direction of the adjustment screw 22, thereby driving the position of the adjustment plate 21 to move on the mounting frame 1 through the support rod 26. The movement of the position of the adjustment plate 21 will drive the corresponding slide column 29 to move in the corresponding inclined groove 27, which will change the position spacing of several sliders 28, so that the positions of the vacuum suction nozzles 4 adjacent to the sliders 28 are at the same distance. When adjusting according to the width position of the lead frame in the subsequent process, it will adapt to the width position of the lead frame during use to better adsorb the lead frame.

[0028] Preferably, the second adjustment structure 3 includes a bidirectional screw 31, an adjusting motor 32 and two mounting sliding blocks 33. A sliding groove 281 is provided in the slider 28. The bidirectional screw 31 is rotatably connected in the sliding groove 281. The adjusting motor 32 is located in the slider 28 and the bidirectional screw 31 is connected to the main shaft of the adjusting motor 32. The two mounting sliding blocks 33 are respectively threadedly connected to the bidirectional screw 31.

[0029] When the position of the vacuum suction nozzle 4 is adjusted according to the width of the lead frame, the adjustment motor 32 drives the position of the bidirectional screw rod 31 to rotate, thereby driving the two mounting sliding blocks 33 to move in opposite directions within the sliding groove 281, thereby adjusting the positions of the two adjacent vacuum suction nozzles 4 according to the width position of the lead frame, so as to be suitable for the adsorption work of lead frames of different widths.

[0030] Preferably, the vacuum suction nozzle 4 is connected to the mounting slide block 33; the position movement of the mounting slide block 33 can drive the position of the vacuum suction nozzle 4 to move, thereby changing the position of the vacuum suction nozzle 4 to be suitable for adsorbing lead frames of different sizes.

[0031] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A mechanism with automatic adaptation to different lead frame widths, characterized in that: It comprises a mounting frame (1), wherein the top of the mounting frame (1) is provided with four limit rods (11) for upper and lower limit; The installation frame (1) is further provided with two symmetrically arranged lifting electric cylinders (12), and the lifting electric cylinders (12) drive the installation frame (1) to move up and down; The installation frame (1) is provided with a first adjustment structure (2), the first adjustment structure (2) and the installation frame (1) are in sliding engagement, and the first adjustment structure (2) is provided with a second adjustment structure (3); The second adjustment structure (3) is slidably matched with the first adjustment structure (2), and the second adjustment structure (3) is provided with a vacuum suction nozzle (4) for adsorbing the lead frame.

2. The mechanism for automatically adapting to different lead frame widths according to claim 1, characterized in that: The first adjustment structure (2) comprises an adjustment plate (21), an adjustment screw (22), an adjustment motor (23) and two slide rods (24); The installation frame (1) is provided with a slide groove (13), the two slide rods (24) are symmetrically arranged on the installation frame (1), and the adjustment screw rod (22) is rotatably connected to the installation frame (1); The second adjustment structure (3) includes a bidirectional screw rod (31), an adjustment motor (32) and two mounting sliding blocks (33); The regulating motor (32) is located in the slider (28) and the bidirectional screw rod (31) is connected to the main shaft of the regulating motor (32). The two mounting sliding blocks (33) are respectively threadedly connected to the bidirectional screw rod (31). The regulating motor (32) is located on the mounting frame (1) and the regulating motor (23) is in transmission connection with the regulating screw (22). The regulating screw (22) is provided with an regulating block (25) threadedly connected thereto. The regulating plate (21) is slidably connected to the mounting frame (1). The adjustment block (25) is provided with a support rod (26), the support rod (26) passes through the slide groove (13) and is connected to the adjustment plate (21), the adjustment plate (21) is provided with a plurality of inclined grooves (27), and the two slide rods (24) are provided with a plurality of sliders (28); A sliding groove (281) is provided in the slider (28), and the bidirectional screw rod (31) is rotatably connected in the sliding groove (281); The slider (28) is in sliding engagement with the slide rod (24), and a slide column (29) is provided on the slider (28) and is in sliding engagement with the inclined groove (27).

3. The mechanism for automatically adapting to different lead frame widths according to claim 2, characterized in that: The spacings between the plurality of chute (27) are the same.

4. The mechanism for automatically adapting to different lead frame widths according to claim 2, characterized in that: The vacuum suction nozzle (4) is connected to the mounting sliding block (33).

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