Automatic receiving device for lead frame

Abstract

The utility model discloses an automatic material receiving device for a lead frame, which relates to the technical field of chip processing equipment and comprises a platform and a push plate in the middle of the platform, the push plate is driven to move by a cylinder below the push plate, a plurality of lifting plates are arranged above the platform and fixedly connected with lifting blocks, and the lifting blocks are arranged on the platform. The lifting block is driven by a first stepping motor to move up and down to complete lifting of the material box, a transverse plate is fixedly connected to the upper portion of the vertical plate, a first moving block is arranged above the transverse plate, the first moving block is driven by a second stepping motor to move, and then the front positioning plate is driven by a plurality of connecting assemblies to move to position the width direction of the material box. And a third stepping motor is arranged above one side of the transverse plate and drives a second moving block to move so as to drive a front positioning plate and a rear positioning plate to jointly move towards the other side to position the material box in the length direction, so that the material box is positioned and fixed in the lifting process, the material box is prevented from shaking, and the lead frame is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of chip processing equipment, in particular to an automatic material receiving device for a lead frame. Background Art

[0002] The lead frame refers to a structure or device used to support and position metal wires during the bonding process. It is a key structural component that realizes the electrical connection between the internal circuit lead ends of the chip and the external leads through bonding materials to form an electrical circuit. It acts as a bridge connecting to external wires and is the chip carrier of the integrated circuit.

[0003] The processed lead frames need to be put into a material box and collected separately for centralized processing when convenient for use, thereby improving production efficiency. The existing lead frame collecting device has low precision, resulting in shaking of the material box during positioning and lifting, which can easily cause the lead frame in the material box to fall and be damaged. Therefore, an automatic lead frame collecting device is proposed to solve the above problem. Utility Model Content

[0004] In order to solve the above technical problems, an automatic lead frame receiving device is provided. This technical solution solves the problem that the existing receiving device has low positioning accuracy and the material box shakes during the lifting process, causing damage to the lead frame.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] 14. The automatic collecting device for a lead frame as claimed in claim 13, wherein a push plate is provided in the middle of the platform, a through hole matching the push plate is opened in the interior of the platform, a vertical plate is provided on the right side of the platform, and a plurality of lifting plates are provided above the platform, and a lifting block is fixedly connected to one side of the plurality of lifting plates, and a side of the lifting block away from the lifting plate is slidably connected to a first slide rail through a slider, and an end of the first slide rail away from the lifting block is fixedly connected to the vertical plate, a first screw is provided on one side of the first slide rail, and a surface of the first screw is threadedly connected to the lifting block, and a first stepper motor is provided on one side of the first screw, and the first stepper motor is installed on one side of the vertical plate through a mounting plate, and an output end of the first stepper motor is fixedly connected to a first pulley, and the first pulley is transmission-connected to a second pulley through a first transmission belt transmission-connected thereto, and a middle part of the second pulley is fixedly connected to an upper end of the first screw, and a cross plate is fixedly connected to the top of the vertical plate, and a first moving block is provided above the cross plate, and a lower end of the first moving block is slidably connected to the second slide rail through a slider, and a lower end of the second slide rail is fixedly connected to the cross plate, and the first moving block is A second screw is threadedly connected to the middle part of a moving block, one end of the second screw is fixedly connected to the output end of the second stepper motor, the second stepper motor is installed on one end of the cross plate through a mounting plate, a sliding rod is fixedly connected to the top of the first moving block through two connecting members, the surface of the sliding rod is slidably connected to the connecting block, one side of the connecting block is fixedly connected to a fixing plate, and the other end of the fixing plate is installed with a front positioning plate by bolts, a third stepper motor is provided above one end of the cross plate, the third stepper motor is installed on one side of the cross plate through a mounting plate, a third pulley is fixedly connected to the output end of the third stepper motor, a fourth pulley is provided below the third pulley, the fourth pulley and the peripheral side of the third pulley are connected to the second transmission belt transmission, a third screw is fixedly connected to the middle part of the fourth pulley, the surface of the third screw is threadedly connected to the second moving block, one end of the second moving block is fixedly connected to the connecting plate, a fourth slide rail is slidably connected to the rear of the connecting plate through a slider, one side of the fourth slide rail is fixedly connected to the cross plate through a fixing block, and one side of the connecting plate is fixedly connected to the rear positioning plate.

[0007] Preferably, a tensioning wheel is provided between the first pulley and the second pulley, and the tensioning wheel is rollingly connected to the outer side of the first transmission belt.

[0008] Preferably, one side of the second moving block is fixedly connected to a third slide rail, a surface of the third slide rail is slidably connected to a slider, and the slider is fixedly connected to one side of the connecting block.

[0009] Preferably, the first moving block is fixedly connected to another fixing plate on one side close to the third stepping motor, a front positioning plate is installed on the other end of the fixing plate via bolts, and a plurality of rollers are installed on one end of the front positioning plate.

[0010] Preferably, a cylinder is fixedly connected below the platform, and an output end of the cylinder is fixedly connected to the push plate.

[0011] Preferably, a side of the transverse plate close to the third stepping motor is also fixedly connected to a rear positioning plate, and anti-collision strips are provided on the inner sides of the two rear positioning plates.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. A high-precision second stepper motor is set to drive the screw to rotate, thereby driving the first moving block to move. The first moving block pulls the front positioning plate inward through the slide rod and the connecting block to position the material box in the width direction. At the same time, a plurality of rollers are arranged on the front positioning plate to facilitate the material box to continue to lift upward during the positioning process, thereby enhancing the stability of the material box during the lifting process.

[0014] 2. A high-precision third stepper motor is provided to drive the third screw to rotate. The third screw drives the second moving block and the connecting plate to move along the fourth slide rail, and then drives the front positioning plate and the rear positioning plate to move to the other side, so as to position the material box in the length direction, thereby ensuring that the material box will not shake during the lifting process and the internal lead frame is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0017] Figure 3 It is a side view structural schematic diagram of the utility model;

[0018] Figure 4 It is a front view structural schematic diagram of the utility model.

[0019] The numbers in the figure are:

[0020] 1. Platform; 101. Vertical plate; 102. Horizontal plate; 11. Push plate; 12. Cylinder; 2. Lifting plate; 21. Lifting block; 22. First slide rail; 23. First screw rod; 24. First stepping motor; 25. First pulley; 26. Second pulley; 27. First transmission belt; 28. Tensioning wheel; 3. First moving block; 31. Second slide rail; 32. Second screw rod; 33. Second stepping motor; 34. Slide rod; 35. Connecting block; 36. Fixed plate; 37. Front positioning plate; 38. Third slide rail; 4. Third stepping motor; 41. Third pulley; 42. Second transmission belt; 43. Fourth pulley; 44. Third screw rod; 45. Second moving block; 46. Fourth slide rail; 47. Connecting plate; 48. Rear positioning plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. It is understandable that the drawings are only provided for reference and illustration, and are not used to limit the utility model. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0022] like Figure 1As shown, an automatic lead frame receiving device includes a platform 1, a push plate 11 is provided in the middle of the platform 1, a through hole matching the push plate 11 is opened inside the platform 1, and the push plate 11 can move along the through hole. A vertical plate 101 is provided on the right side of the platform 1, and a plurality of lifting plates 2 are provided above the platform 1. A lifting block 21 is fixedly connected to one side of the plurality of lifting plates 2. A side of the lifting block 21 away from the lifting plate 2 is slidably connected to a first slide rail 22 through a slider. An end of the first slide rail 22 away from the lifting block 21 is fixedly connected to the vertical plate 101. A first screw 23 is provided on one side of the first slide rail 22. The surface of the first screw 23 is threadedly connected to the lifting block 21. The first screw 23 is rotatably connected to the inside of the vertical plate 101. A first stepper motor 24 is provided on one side of the first screw rod 23. The first stepper motor 24 is installed on one side of the vertical plate 101 through a mounting plate. A first pulley 25 is fixedly connected to the output end of the first stepper motor 24. The first pulley 25 is transmission-connected to the second pulley 26 through a first transmission belt 27 transmission-connected thereto. The middle part of the second pulley 26 is fixedly connected to the upper end of the first screw rod 23. A tensioning pulley 28 is provided between the first pulley 25 and the second pulley 26. The tensioning pulley 28 is rollingly connected to the outer side of the first transmission belt 27. The first stepper motor 24 drives the first screw rod 23 to rotate through a plurality of pulleys, thereby driving the lifting block 21 and the lifting plate 2 to move up and down along the first slide rail 22.

[0023] like Figure 2 As shown, a horizontal plate 102 is fixedly connected to the top of the vertical plate 101, a first moving block 3 is arranged above the horizontal plate 102, the lower end of the first moving block 3 is slidably connected to the second slide rail 31 through a slider, the lower end of the second slide rail 31 is fixedly connected to the horizontal plate 102, a second screw rod 32 is threadedly connected to the middle part of the first moving block 3, one end of the second screw rod 32 is fixedly connected to the output end of the second stepping motor 33, the second stepping motor 33 is installed on one end of the horizontal plate 102 through a mounting plate, and the first moving block 3 is connected to the top of the first moving block 3 through two The connecting piece is fixedly connected with a slide rod 34, and the surface of the slide rod 34 is slidably connected with the connecting block 35. A fixing plate 36 is fixedly connected to one side of the connecting block 35, and a front positioning plate 37 is installed at the other end of the fixing plate 36 by bolts. The second stepper motor 33 drives the second screw 32 to rotate, and the second screw 32 drives the first moving block 3 threadedly connected thereto to reciprocate along the second slide rail 31 below. The connecting block 35 and the fixing plate 36 are pulled to move by the slide rod 34, thereby driving the front positioning plate 37 to move to complete the front end positioning of the material box.

[0024] like Figure 2 and 3As shown, a third stepper motor 4 is provided above one end of the cross plate 102, and the third stepper motor 4 is installed on one side of the cross plate 102 through a mounting plate, and the output end of the third stepper motor 4 is fixedly connected with a third pulley 41, and a fourth pulley 43 is provided below the third pulley 41, and the peripheral sides of the fourth pulley 43 and the third pulley 41 are transmission-connected with the second transmission belt 42, and a third screw 44 is fixedly connected to the middle part of the fourth pulley 43, and the surface of the third screw 44 is threadedly connected with the second moving block 45, and the third stepper motor 4 drives the third screw 44 to rotate through the pulley transmission, and the third screw 44 drives the second moving block 45 to move, and a third slide rail 38 is fixedly connected to one side of the second moving block 45, and a slider is slidably connected to the surface of the third slide rail 38, and the slider is fixedly connected to one side of the connecting block 35.

[0025] Please refer to Figure 1 One end of the second moving block 45 is fixedly connected to the connecting plate 47, and the rear of the connecting plate 47 is slidably connected to the fourth slide rail 46 through a slider. One side of the fourth slide rail 46 is fixedly connected to the cross plate 102 through a fixed block. One side of the connecting plate 47 is fixedly connected to the rear positioning plate 48, and the side of the cross plate 102 close to the third stepping motor 4 is also fixedly connected to the rear positioning plate 48. The inner sides of the two rear positioning plates 48 are both provided with anti-collision strips. The second moving block 45 drives the connecting plate 47 and the connecting block 35 fixedly connected thereto to move together, thereby driving the rear positioning plate 48 and the front positioning plate 37 to move. The first moving block 3 is fixedly connected to another fixed plate 36 on the side close to the third stepping motor 4, and the other end of the other fixed plate 36 is also installed with the front positioning plate 37 by bolts, and one end of the front positioning plate 37 is installed with multiple rollers.

[0026] like Figure 4 As shown, a cylinder 12 is fixedly connected to the bottom of the platform 1, and the output end of the cylinder 12 is fixedly connected to the push plate 11. The cylinder 12 pushes the push plate 11 to move along the through hole opened on the platform 1 to fix the material box.

[0027] The principle of the utility model is as follows: when using the device, the lead frame receiving box is placed on the platform 1, the cylinder 12 extends to push the push plate 11 to move inward to fix the box, and then the first stepper motor 24 is started, and the first screw 23 is driven to rotate through multiple pulleys, thereby driving the lifting block 21 and the lifting plate 2 to move upward along the first slide rail 22 to lift the box upward. In the process of the box moving upward, the third stepper motor 4 is started, and the third stepper motor 4 drives the second moving block 45 to move toward the third stepper motor 4 through the pulley transmission, thereby driving the rear positioning plate 48 on one side and the lifting plate 22 to move upward along the first slide rail 22 to lift the box upward. The front positioning plate 37 is moved close to the two positioning plates on the other side to position and fix the material box in the width direction, and then the second stepper motor 33 is started. The second stepper motor 33 drives the first moving block 3 to move toward the second stepper motor 33, and the front positioning plate 37 is driven to move by the sliding rod 34 and the connecting block 35 connected to the first moving block 3. The rollers on the front positioning plate 37 are pressed against the surface of the material box to position and fix the material box in the length direction during the movement of the material box. By setting up multiple high-precision stepper motors to lift and position the material box, the movement process of the material box is smoother and less prone to shaking.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lead frame automatic receiving device, characterized in that: The invention comprises a platform (1), wherein a push plate (11) is provided in the middle of the platform (1), a through hole matching the push plate (11) is opened inside the platform (1), a vertical plate (101) is provided on the right side of the platform (1), and a plurality of lifting plates (2) are provided above the platform (1), and a lifting block (21) is fixedly connected to one side of the plurality of lifting plates (2), and a side of the lifting block (21) away from the lifting plate (2) is slidably connected to a first slide rail (22) through a slider, and an end of the first slide rail (22) away from the lifting block (21) is fixedly connected to the vertical plate (101), and a first screw rod (23) is provided on one side of the first slide rail (22), and a surface of the first screw rod (23) is threadedly connected to the lifting block (21). A first stepper motor (24) is provided on one side of the first screw rod (23), and the first stepper motor (24) is installed on one side of the vertical plate (101) through a mounting plate. The output end of the first stepper motor (24) is fixedly connected to a first pulley (25), and the first pulley (25) is transmission-connected to a second pulley (26) through a first transmission belt (27) transmission-connected thereto, and the middle part of the second pulley (26) is fixedly connected to the upper end of the first screw rod (23), and a transverse plate (102) is fixedly connected above the vertical plate (101), and a first moving block (3) is provided above the transverse plate (102), and the lower end of the first moving block (3) is slidably connected to a second slide rail (31) through a slider, and the The lower end of the second slide rail (31) is fixedly connected to the transverse plate (102); a second screw rod (32) is threadedly connected to the middle part of the first moving block (3); one end of the second screw rod (32) is fixedly connected to the output end of the second stepping motor (33); the second stepping motor (33) is mounted on one end of the transverse plate (102) through a mounting plate; a slide rod (34) is fixedly connected to the top of the first moving block (3) through two connecting members; the surface of the slide rod (34) is slidably connected to the connecting block (35); a fixing plate (36) is fixedly connected to one side of the connecting block (35); a front positioning plate (37) is installed on the other end of the fixing plate (36) through bolts; a third stepping motor (34) is provided above one end of the transverse plate (102); The motor (4) is installed on one side of the transverse plate (102) through a mounting plate, the output end of the third stepper motor (4) is fixedly connected to a third pulley (41), a fourth pulley (43) is provided below the third pulley (41), the peripheral sides of the fourth pulley (43) and the third pulley (41) are transmission-connected to a second transmission belt (42), a third screw rod (44) is fixedly connected to the middle of the fourth pulley (43), the surface of the third screw rod (44) is threadedly connected to a second moving block (45), one end of the second moving block (45) is fixedly connected to a connecting plate (47), and a fourth slide rail (46) is slidably connected to the rear of the connecting plate (47) through a slider,One side of the fourth slide rail (46) is fixedly connected to the transverse plate (102) via a fixing block, and one side of the connecting plate (47) is fixedly connected to a rear positioning plate (48).

2. The lead frame automatic receiving device according to claim 1, characterized in that: A tensioning wheel (28) is provided between the first belt pulley (25) and the second belt pulley (26), and the tensioning wheel (28) is rollingly connected to the outer side of the first transmission belt (27).

3. The lead frame automatic receiving device according to claim 1, characterized in that: One side of the second moving block (45) is fixedly connected to a third slide rail (38), a surface of the third slide rail (38) is slidably connected to a sliding block, and the sliding block is fixedly connected to one side of the connecting block (35).

4. The lead frame automatic receiving device according to claim 1, characterized in that: Another fixed plate (36) is fixedly connected to one side of the first moving block (3) close to the third stepping motor (4), and a front positioning plate (37) is installed on the other end of the other fixed plate (36) via bolts, and a plurality of rollers are installed on one end of the front positioning plate (37).

5. The lead frame automatic receiving device according to claim 1, characterized in that: A cylinder (12) is fixedly connected below the platform (1), and an output end of the cylinder (12) is fixedly connected to the push plate (11).

6. The lead frame automatic receiving device according to claim 1, characterized in that: A rear positioning plate (48) is also fixedly connected to one side of the transverse plate (102) close to the third stepping motor (4), and anti-collision strips are provided on the inner sides of the two rear positioning plates (48).

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