Lead frame clamping and adsorbing manipulator

Abstract

The utility model belongs to the technical field of lead frame processing, and particularly relates to a lead frame clamping and adsorbing manipulator which comprises a base, a stepping motor is movably arranged at the top of the base, a connecting arm is arranged on the stepping motor, a large arm is movably arranged at the top of the connecting arm, a connecting seat is movably arranged at one end of the large arm, and a clamping mechanism is arranged at the other end of the connecting seat. Through the arrangement of the air pump, the spring and the air guide pipe, the height of the suction cup is adjusted according to the thickness of the lead frame before materials are clamped, the insertion rod is pulled outwards to be separated from the positioning hole, then the telescopic rod can be held to adjust the height of the suction cup, and when the height of the suction cup can be attached to the top of the lead frame, the insertion rod can be inserted into the positioning hole. After the clamping jaw grabs the lead frame, the air pump is started, the air pump continuously leads out air in the suction cup, the suction cup is made to be in an adsorption state, the situation that materials fall off due to the fact that the clamping jaw clamps the lead frame unfirmly can be effectively prevented, the clamping firmness of equipment is improved, and the probability that the materials fall off can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame processing, in particular to a lead frame clamping and adsorbing manipulator. Background Technique

[0002] As a chip carrier for integrated circuits, a lead frame is a key structural component that realizes the electrical connection between the internal circuit leads of a chip and the external leads by means of bonding materials (gold wire, aluminum wire, copper wire), forming an electrical loop. It plays a role as a bridge for connecting to external wires. Most semiconductor integrated circuits require the use of lead frames, which are important basic materials in the electronic information industry. When processing lead frames, a manipulator is needed to transfer them from one station to the next for processing.

[0003] However, existing manipulators generally grasp the lead frame through jaws, and there is a situation where the material drops due to insufficient clamping during the movement. Therefore, a lead frame clamping and adsorbing manipulator is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a lead frame clamping and adsorbing manipulator is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a lead frame clamping and adsorbing manipulator, including a base, a stepping motor is movably arranged on the top of the base, a connecting arm is arranged on the stepping motor, a large arm is movably arranged on the top of the connecting arm, a connecting seat is movably arranged at one end of the large arm, a jaw is arranged at the bottom of the connecting seat, an adsorption structure is arranged on the front of the large arm, and a material receiving structure is arranged on the large arm.

[0006] As a further description of the above technical scheme:

[0007] The adsorption structure includes an air pump fixedly connected to the front of the large arm and a sleeve fixedly connected to the bottom of the connecting seat. A telescopic rod is movably arranged in the sleeve. A plurality of positioning holes are arranged on the surface of the telescopic rod. A suction cup is fixedly arranged at the bottom end of the telescopic rod. An exhaust pipe and an air suction pipe are respectively arranged on the front and one side of the air pump. A guide pipe is arranged on the air suction pipe. One end of the guide pipe far away from the air pump is fixedly connected to the top of the suction cup.

[0008] As a further description of the above technical scheme:

[0009] An installation frame is fixedly arranged on the sleeve. A plug rod is movably arranged on the installation frame. A limit ring is fixedly arranged on the plug rod. A spring is sleeved on the plug rod. One end of the spring is in contact with the inner wall of the installation frame, and one end of the spring is in contact with the limit ring. The plug rod is adapted to the positioning hole.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the sleeve is provided with a limiting groove, and the outer wall of the telescopic rod is fixedly provided with two limiting blocks, and the limiting groove and the limiting blocks are movably connected.

[0012] As a further description of the above technical solution:

[0013] The material receiving structure includes two mounting seats fixedly connected to the upper arm and a driving motor fixedly connected to the bottom of the upper arm, a cross bar is movably provided on the two mounting seats, a fixing frame is fixedly provided at one end of the two cross bars, the fixing frame is in an "L" shape, the same material receiving plate is fixedly provided between the two fixing frames, a connecting frame is fixedly provided on one side of the material receiving plate, a threaded rod is fixedly provided on the output shaft of the driving motor, an internal threaded tube is movably provided on the threaded rod, and the internal threaded tube is fixedly connected to one side of the connecting frame.

[0014] As a further description of the above technical solution:

[0015] A slider is fixedly arranged at one end of the two cross bars that are close to each other, and the two sliders are movably connected to two mounting seats respectively.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the lead frame clamping and adsorption manipulator is provided with an air pump, a sleeve, a telescopic rod, a positioning hole, a suction cup, a mounting frame, an insertion rod, a limiting ring, a spring and an air guide tube. Before clamping the material, the height of the suction cup is adjusted according to the thickness of the lead frame, the insertion rod is pulled outward to make it out of the positioning hole, and then the telescopic rod can be held to adjust the height of the suction cup. When the height of the suction cup can fit with the top of the lead frame, the insertion rod can be inserted into the positioning hole, and the air pump is started after the clamping claw grabs the lead frame. The air pump continuously discharges the gas in the suction cup, so that the suction cup is in an adsorption state, which can effectively prevent the situation where the clamping claw is not firmly clamped and causes the material to fall, improve the clamping firmness of the equipment, and reduce the probability of material falling.

[0018] 2. Compared with the prior art, the lead frame clamping and adsorption robot is equipped with a driving motor, a mounting seat, a cross bar, a fixed frame and a receiving plate. After the material is clamped successfully, the driving motor is started to rotate forward, and the driving motor drives the threaded rod, and the threaded rod drives the internal threaded tube to move toward the direction close to the clamping claw. The internal threaded tube pushes the connecting frame, and the connecting frame drives the connecting plate, and the connecting plate drives two fixed frames and the cross bar. When the receiving plate moves to the bottom of the clamping claw, the driving motor can be turned off. If the material falls during the material transfer process, the receiving plate can catch the falling lead frame to prevent the material from falling to the ground and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic three-dimensional structure diagram of a lead frame clamping and adsorbing manipulator proposed by the present utility model;

[0020] Figure 2 Schematic three-dimensional diagram of the adsorption structure in a lead frame clamping and adsorbing manipulator proposed by the present utility model;

[0021] Figure 3 Schematic three-dimensional diagram of the material receiving structure in a lead frame clamping and adsorbing manipulator proposed by the present utility model;

[0022] Figure 4 Schematic enlarged structure diagram of part A in a lead frame clamping and adsorbing manipulator proposed by the present utility model.

[0023] Legend description:

[0024] 1. Base; 2. Stepper motor; 3. Connecting arm; 4. Boom; 5. Connecting seat; 6. Claw; 7. Adsorption structure; 701. Air pump; 702. Sleeve; 703. Telescopic rod; 704. Positioning hole; 705. Suction cup; 706. Mounting bracket; 707. Plug rod; 708. Limit ring; 709. Spring; 710. Air duct; 8. Material receiving structure; 801. Driving motor; 802. Mounting seat; 803. Slide block; 804. Cross bar; 805. Fixed bracket; 806. Material receiving plate; 807. Connecting frame; 808. Threaded rod; 809. Internal threaded tube. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Referring to Figures 1 to 4 , a lead frame clamping and adsorbing manipulator provided by the present utility model: includes a base 1, a stepper motor 2 is movably provided on the top of the base 1, a connecting arm 3 is provided on the stepper motor 2, a boom 4 is movably provided on the top of the connecting arm 3, a connecting seat 5 is movably provided at one end of the boom 4, and a claw 6 is provided at the bottom of the connecting seat 5;

[0027] Referring to Figure 2 and Figure 4, in order to achieve the purpose of improving the clamping firmness, an adsorption structure 7 is provided on the front surface of the boom 4. The adsorption structure 7 includes an air pump 701 fixedly connected to the front surface of the boom 4 and a sleeve 702 fixedly connected to the bottom of the connecting seat 5. A telescopic rod 703 is movably arranged in the sleeve 702. A limiting groove is provided on the inner wall of the sleeve 702. Two limiting blocks are fixedly arranged on the outer wall of the telescopic rod 703. The limiting groove and the limiting blocks are movably connected. A plurality of positioning holes 704 are provided on the surface of the telescopic rod 703. A suction cup 705 is fixedly arranged at the bottom end of the telescopic rod 703. An installation bracket 706 is fixedly arranged on the sleeve 702. A plug rod 707 is movably arranged on the installation bracket 706. A limiting ring 708 is fixedly arranged on the plug rod 707. A spring 709 is sleeved on the plug rod 707. One end of the spring 709 is in contact with the inner wall of the installation bracket 706, and one end of the spring 709 is in contact with the limiting ring 708. The plug rod 707 is adapted to the positioning holes 704. An exhaust pipe and a suction pipe are respectively arranged on the front surface and one side of the air pump 701. A guide pipe 710 is arranged on the suction pipe. The end of the guide pipe 710 away from the air pump 701 is fixedly connected to the top of the suction cup 705. After clamping, the air pump 701 is started. The air pump 701 continuously discharges the gas in the suction cup 705, making the suction cup 705 in an adsorption state, which can effectively prevent the situation that the material drops due to the insufficient clamping of the clamping jaw 6 and improve the clamping firmness of the equipment;

[0028] Referring to Figure 3 , in order to achieve the purpose of receiving the falling material, a material receiving structure 8 is provided on the boom 4. The material receiving structure 8 includes two mounting seats 802 fixedly connected to the boom 4 and a driving motor 801 fixedly connected to the bottom of the boom 4. A cross bar 804 is movably arranged on the two mounting seats 802. Sliders 803 are fixedly arranged at the ends of the two cross bars 804 close to each other. The two sliders 803 are respectively movably connected to the two mounting seats 802. Fixed frames 805 are fixedly arranged at one ends of the two cross bars 804. The fixed frames 805 are in an "L" shape. The same material receiving plate 806 is fixedly arranged between the two fixed frames 805. A connecting frame 807 is fixedly arranged on one side of the material receiving plate 806. A threaded rod 808 is fixedly arranged on the output shaft of the driving motor 801. An internally threaded tube 809 is movably arranged on the threaded rod 808. The internally threaded tube 809 is fixedly connected to one side of the connecting frame 807. After the material is clamped, the driving motor 801 is started to move the material receiving plate 806 to the bottom of the clamping jaw 6. During the process of material transfer, if the material drops, the material receiving plate 806 can catch the falling lead frame, preventing the material from being damaged by falling to the ground.

[0029] Working principle: When in use, first adjust the height of the suction cup 705 according to the thickness of the lead frame, pull the insertion rod 707 outward to make it out of the positioning hole 704, and then hold the telescopic rod 703 to adjust the height of the suction cup 705. When the height of the suction cup 705 can fit the top of the lead frame, the insertion rod 707 can be inserted into the positioning hole 704. After the clamp 6 grabs the lead frame, the air pump 701 is started. The air pump 701 continuously discharges the gas in the suction cup 705, so that the suction cup 705 is in an adsorption state, which can effectively prevent the situation where the clamp 6 is not firmly clamped and causes the material to fall, thereby improving the clamping strength of the equipment. After the material is successfully clamped, the drive motor 801 is started to rotate forward, and the drive motor 801 drives the threaded rod 808, and the threaded rod 808 drives the internal threaded tube 809 to move towards the direction close to the clamping jaw 6, and the internal threaded tube 809 pushes the connecting frame 807, and the connecting frame 807 drives the receiving plate 806, and the receiving plate 806 drives the two fixed frames 805 and the cross bar 804. When the receiving plate 806 moves to the bottom of the clamping jaw 6, the drive motor 801 can be turned off. If the material falls during the material transfer process, the receiving plate 806 can catch the falling lead frame to prevent the material from falling to the ground and being damaged.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead frame gripping and adsorption robot, comprising a base (1), characterized in that: A stepper motor (2) is movably provided on the top of the base (1), a connecting arm (3) is provided on the stepper motor (2), a large arm (4) is movably provided on the top of the connecting arm (3), a connecting seat (5) is movably provided at one end of the large arm (4), a clamping claw (6) is provided at the bottom of the connecting seat (5), an adsorption structure (7) is provided on the front of the large arm (4), and a material receiving structure (8) is provided on the large arm (4).

2. The lead frame gripping and adsorption robot according to claim 1, characterized in that: The adsorption structure (7) comprises an air pump (701) fixedly connected to the front of the upper arm (4) and a sleeve (702) fixedly connected to the bottom of the connecting seat (5); a telescopic rod (703) is movably arranged in the sleeve (702); a plurality of positioning holes (704) are arranged on the surface of the telescopic rod (703); a suction cup (705) is fixedly arranged at the bottom end of the telescopic rod (703); an exhaust pipe and an air intake pipe are respectively arranged on the front and one side of the air pump (701); an air guide pipe (710) is arranged on the air intake pipe; and one end of the air guide pipe (710) away from the air pump (701) is fixedly connected to the top of the suction cup (705).

3. The lead frame gripping and adsorption robot according to claim 2, characterized in that: A mounting frame (706) is fixedly provided on the sleeve (702), an insertion rod (707) is movably provided on the mounting frame (706), a limiting ring (708) is fixedly provided on the insertion rod (707), a spring (709) is sleeved on the insertion rod (707), one end of the spring (709) is in contact with the inner wall of the mounting frame (706), one end of the spring (709) is in contact with the limiting ring (708), and the insertion rod (707) is matched with the positioning hole (704).

4. The lead frame gripping and adsorption robot according to claim 2, characterized in that: The inner wall of the sleeve (702) is provided with a limiting groove, and the outer wall of the telescopic rod (703) is fixedly provided with two limiting blocks, and the limiting groove and the limiting blocks are movably connected.

5. The lead frame gripping and adsorption robot according to claim 1, characterized in that: The material receiving structure (8) comprises two mounting seats (802) fixedly connected to the upper arm (4) and a driving motor (801) fixedly connected to the bottom of the upper arm (4); a cross bar (804) is movably provided on the two mounting seats (802); a fixing frame (805) is fixedly provided at one end of each of the two cross bars (804); the fixing frame (805) is in an "L" shape; a same material receiving plate (806) is fixedly provided between the two fixing frames (805); a connecting frame (807) is fixedly provided on one side of the material receiving plate (806); a threaded rod (808) is fixedly provided on the output shaft of the driving motor (801); an internal threaded tube (809) is movably provided on the threaded rod (808); the internal threaded tube (809) is fixedly connected to one side of the connecting frame (807).

6. The lead frame gripping and adsorption robot according to claim 5, characterized in that: A slider (803) is fixedly provided at one end of the two cross bars (804) that are close to each other, and the two sliders (803) are movably connected to the two mounting seats (802) respectively.

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