CN212967649U - Automatic feeding structure of lead frame - Google Patents
Automatic feeding structure of lead frame Download PDFInfo
- Publication number
- CN212967649U CN212967649U CN202022481173.3U CN202022481173U CN212967649U CN 212967649 U CN212967649 U CN 212967649U CN 202022481173 U CN202022481173 U CN 202022481173U CN 212967649 U CN212967649 U CN 212967649U
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- mounting base
- lead frame
- pressure sensor
- negative pressure
- feeding
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Abstract
The utility model discloses an automatic feeding structure of a lead frame, which comprises supporting legs, wherein a mounting base is arranged at the top of each supporting leg, a servo motor is arranged at the rear side of the mounting base, a track is arranged at the top of the mounting base, and a manipulator structure is arranged on the mounting base and comprises a movable mounting seat, a sliding table cylinder, a buffering linear guide rail, a movable block, a feeding arm and a vacuum chuck; a negative pressure sensor is arranged on the left side of the supporting leg, and a rubber tube is arranged on the negative pressure sensor; the right side of the supporting leg is sequentially provided with a frame material placing position and a frame carrying platform from back to front; the mechanism is flexible in material taking and feeding movement and accurate in walking; the multiple vacuum chucks take materials to ensure the stability of the feeding process; errors in the using process are reduced through monitoring of the negative pressure sensor; and 50 lead frames can be placed at one time, frequent material supplementing is not needed, and the feeding work efficiency is improved.
Description
Technical Field
The utility model belongs to semiconductor production automation equipment field especially relates to a lead frame automatic feeding structure.
Background
The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between a leading-out end of an internal circuit of a chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electrical circuit, plays a role of a bridge connected with an external lead, needs to be used in most semiconductor integrated blocks and is an important basic material in the electronic information industry.
In the whole packaging process of the integrated circuit, the feeding of the lead frame is one of the processes, but the feeding position precision of the currently used feeding structure is not high, manual auxiliary adjustment is needed, and the labor cost is increased; the lead frame that lead frame temporary storage area can be placed is few, need frequently carry out the feed supplement, reduces whole material loading work efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lead frame automatic feeding structure for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
an automatic feeding structure of a lead frame comprises two vertically arranged supporting legs 1, wherein the top of each supporting leg 1 is horizontally provided with a mounting base 2, a servo motor 3 is arranged on the rear side of the mounting base 2, a track 4 is arranged on the top of the mounting base 2, a mechanical arm structure 5 is arranged on the mounting base 2 in a penetrating manner through the track 4, the mechanical arm structure 5 comprises a movable mounting base 6, a sliding table cylinder 7, a buffering linear guide rail 8, a movable block 9, a feeding arm 10 and a vacuum chuck 11, the sliding table cylinder 7 is positioned on the right side of the movable mounting base 6, the buffering linear guide rail 8 is positioned on the right side face of the sliding table cylinder 7 and is vertically arranged, and the movable block 9 is positioned on the right side of the sliding table cylinder 7 and is slidably arranged on the buffering linear; the feeding arm 10 is transversely arranged left and right, and the left end of the feeding arm is connected with the moving block 9; the vacuum chucks 11 are positioned at the front side and the rear side of the feeding arm 10 and are arranged downwards; a negative pressure sensor 12 is arranged on the left side of the supporting leg 1, a rubber tube 13 is arranged on the negative pressure sensor 12, and the negative pressure sensor 12 is connected with the vacuum chuck 11 through the rubber tube 13; the right side of the supporting foot 1 is positioned below the feeding arm 10 and is sequentially provided with a frame material placing position 14 and a frame carrying platform 15 from back to front.
Preferably, the manipulator structure 5 is movably connected with the track 4 through the power control of the servo motor 3.
Preferably, the length of the rail 4 is greater than the length distance between the frame placing position 14 and the frame carrier 15.
Preferably, the vacuum chucks 11 are arranged in 8 groups, and are respectively and uniformly distributed on the front side and the rear side of the feeding arm 10.
Preferably, the alarm value of the negative pressure sensor 12 is 50 kpa.
Preferably, the frame placement position 14 is configured as a cavity structure capable of placing 50 lead frames.
The utility model has the advantages that: the mechanism controls the manipulator to move for material taking and feeding by using the servo motor to provide power, and is flexible in movement and accurate in walking; the lead frame can be firmly sucked by arranging the plurality of vacuum suckers, so that the stability of the feeding process is ensured; by arranging the negative pressure sensor, when the material is taken wrongly or falls midway, the alarm prompt is given in time, so that the errors in the use process are reduced; through setting up the frame and putting the material level, once only can place 50 lead frames, need not frequent feed supplement, improve material loading work efficiency.
Drawings
Fig. 1 is a schematic view of the overall three-dimensional structure of the automatic feeding structure of the lead frame according to the present invention;
fig. 2 is a rear view of the automatic feeding structure of the lead frame of the present invention;
in the figure: 1. supporting legs; 2. mounting a base; 3. a servo motor; 4. a track; 5. a manipulator structure; 6. moving the mounting seat; 7. a sliding table cylinder; 8. buffering the linear guide rail; 9. a moving block; 10. a feeding arm; 11. a vacuum chuck; 12. a negative pressure sensor; 13. a hose; 14. placing the material level on the frame; 15. a frame carrying platform.
Detailed Description
The technical scheme of the utility model is further described with the attached drawings:
as can be seen from the drawings of fig. 1-2, an automatic feeding structure for a lead frame comprises two vertically arranged supporting legs 1, wherein a mounting base 2 is horizontally arranged at the top of each supporting leg 1, a servo motor 3 is arranged on the rear side of the mounting base 2, a track 4 is arranged on the top of the mounting base 2, a manipulator structure 5 is arranged on the mounting base 2 and penetrates through the track 4, the manipulator structure 5 comprises a movable mounting base 6, a sliding table cylinder 7, a buffering linear guide rail 8, a movable block 9, a feeding arm 10 and a vacuum chuck 11, the sliding table cylinder 7 is arranged on the right side of the movable mounting base 6, the buffering linear guide rail 8 is arranged vertically on the right side surface of the sliding table cylinder 7, and the movable block 9 is arranged on the right side of the sliding table cylinder 7 and is slidably arranged on the buffering linear guide rail 8; the feeding arm 10 is transversely arranged left and right, and the left end of the feeding arm is connected with the moving block 9; the vacuum chucks 11 are positioned at the front side and the rear side of the feeding arm 10 and are arranged downwards; a negative pressure sensor 12 is arranged on the left side of the supporting leg 1, a rubber tube 13 is arranged on the negative pressure sensor 12, and the negative pressure sensor 12 is connected with the vacuum chuck 11 through the rubber tube 13; the right side of the supporting foot 1 is positioned below the feeding arm 10 and is sequentially provided with a frame material placing position 14 and a frame carrying platform 15 from back to front.
When the automatic feeding device is used specifically, a plurality of lead frames are placed on the frame material placing position 14, the servo motor 3 drives the mechanical arm structure 5 to move to the position above the frame material placing position 14 on the track 4 through the movable mounting seat 6, the sliding table cylinder 7 controls the movable block 9 to drive the feeding arm 10 to slide downwards on the buffering linear guide rail 8 and be close to the lead frame on the uppermost layer, the vacuum chuck 10 presses the frame, vacuum is opened, after one lead frame is taken up, the sliding table cylinder 7 controls the movable block 9 to lift upwards, the servo motor 3 drives the mechanical arm structure 5 to move to the position above the frame carrying table on the track 4 through the movable mounting seat 6 and then to place the lead frame, the operation is repeated, and continuous feeding can be.
Preferably, in this embodiment, the manipulator structure 5 is movably connected with the track 4 through power control of the servo motor 3, and the servo motor 3 performs closed-loop control on position, speed and torque, so that the problem of motor step loss is avoided, and the manipulator structure 5 is flexible to move on the track 4 and accurate in walking.
In this embodiment, preferably, the length of the track 4 is greater than the length distance between the frame placing position 14 and the frame carrier 15, and the manipulator structure 5 moves on the track 4 to meet the distance requirement of material taking and loading.
In this embodiment, preferably, the vacuum chuck 11 is provided with 8 groups, and the groups are respectively and uniformly distributed on the front side and the rear side of the feeding arm 10, so that the lead frame can be firmly sucked, and the stability of the feeding process is ensured.
In the preferred embodiment, the alarm value of the negative pressure sensor 12 is 50kpa, so that the negative pressure sensor is suitable for measurement and control in occasions where the medium pressure is weak, the monitoring effect is good, and errors in the use process are reduced.
In the preferred embodiment, the frame material placing position 14 is set to be a cavity structure capable of placing 50 lead frames, and the number of the lead frames is reasonably placed within the stroke range of the buffer linear guide rail 8, so that the working efficiency in the material loading process is optimal.
Finally, it should be noted that:
first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be interpreted broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," "right," "front," "rear," and the like are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a lead frame automatic feeding structure which characterized in that: comprises two supporting legs (1) which are vertically arranged, a mounting base (2) is horizontally arranged at the top of each supporting leg (1), a servo motor (3) is arranged at the rear side of the mounting base (2), a track (4) is arranged at the top of the mounting base (2), a manipulator structure (5) is arranged on the mounting base (2) and penetrated by the rail (4), the manipulator structure (5) comprises a movable mounting seat (6), a sliding table cylinder (7), a buffering linear guide rail (8), a movable block (9), a feeding arm (10) and a vacuum chuck (11), the sliding table cylinder (7) is positioned at the right side of the movable mounting seat (6), the buffering linear guide rail (8) is positioned on the right side surface of the sliding table cylinder (7) and is vertically arranged, the moving block (9) is positioned on the right side of the sliding table cylinder (7) and is arranged on the buffering linear guide rail (8) in a sliding manner; the feeding arm (10) is transversely arranged left and right, and the left end of the feeding arm is connected with the moving block (9); the vacuum suckers (11) are positioned at the front side and the rear side of the feeding arm (10) and are arranged downwards; a negative pressure sensor (12) is arranged on the left side of the supporting leg (1), a rubber tube (13) is arranged on the negative pressure sensor (12), and the negative pressure sensor (12) is connected with the vacuum chuck (11) through the rubber tube (13); the right side of the supporting leg (1) is located below the feeding arm (10) and a frame material placing position (14) and a frame carrying platform (15) are sequentially arranged from back to front.
2. The lead frame automatic feeding structure according to claim 1, characterized in that: the manipulator structure (5) is movably connected with the track (4) through power control of the servo motor (3).
3. The lead frame automatic feeding structure according to claim 1, characterized in that: the length of the track (4) is larger than the length distance between the frame placing position (14) and the frame carrying platform (15).
4. The lead frame automatic feeding structure according to claim 1, characterized in that: the vacuum suckers (11) are provided with 8 groups which are respectively and uniformly distributed on the front side and the rear side of the feeding arm (10).
5. The lead frame automatic feeding structure according to claim 1, characterized in that: the alarm value of the negative pressure sensor (12) is 50 kpa.
6. The lead frame automatic feeding structure according to claim 1, characterized in that: the frame placing position (14) is set to be a cavity structure capable of placing 50 lead frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481173.3U CN212967649U (en) | 2020-10-30 | 2020-10-30 | Automatic feeding structure of lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481173.3U CN212967649U (en) | 2020-10-30 | 2020-10-30 | Automatic feeding structure of lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212967649U true CN212967649U (en) | 2021-04-13 |
Family
ID=75373132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481173.3U Active CN212967649U (en) | 2020-10-30 | 2020-10-30 | Automatic feeding structure of lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212967649U (en) |
-
2020
- 2020-10-30 CN CN202022481173.3U patent/CN212967649U/en active Active
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