CN102332412A - IC (integrated circuit) lead frame thrust unit before preheating - Google Patents
IC (integrated circuit) lead frame thrust unit before preheating Download PDFInfo
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- CN102332412A CN102332412A CN201110214815A CN201110214815A CN102332412A CN 102332412 A CN102332412 A CN 102332412A CN 201110214815 A CN201110214815 A CN 201110214815A CN 201110214815 A CN201110214815 A CN 201110214815A CN 102332412 A CN102332412 A CN 102332412A
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Abstract
The invention relates to an alignment device used before packing equipment preheats an L/F (lead frame) with an IC (integrated circuit) and in particular relates to an IC (integrated circuit) lead frame thrust unit before preheating. The thrust unit comprises a support, wherein one side of the support is fixedly provided with a motor; an output end of the motor is provided with a leadscrew nut transmission mechanism; the leadscrew nut transmission mechanism is installed on the support; nuts in the leadscrew nut transmission mechanism are connected with a push rod translation mechanism; and the push rod translation mechanism which is subjected to the translation along with the nuts is provided with a push rod used for pushing the L/F. Due to the adoption of DC (direct current) motor and rolling screw drive modes, the thrust unit has the advantages of stability in operation, zero-vibration at the time of startup and zero-creeping at a low speed, the positioning accuracy and the repositioning accuracy can be very high, and the correct position can be reached when the L/F is pushed.
Description
Technical field
The present invention relates to sealed in unit the L/F (being lead frame) that contains IC (being integrated circuit) is carried out the preceding permutation device of preheating; Be about to L/F and be advanced into the device that pre-heating station carries out preheating, be specifically related to the preceding circuit lead frame thrust unit of a kind of preheating from rotation platform.
Background technology
In the IC encapsulation field, for better with the heating the encapsulating mould size match, most of form be encapsulated in the encapsulation before need carry out preheating to L/F.Therefore sealed in unit is provided with pre-heating station, and L/F need be transferred to pre-heating station from rotary table during preheating.The IC sealed in unit takes the push rod of Rodless cylinder drive installation on slide block to realize the permutation of L/F at present.Because the cylinder bleed pressure has fluctuation; Cause output speed and thrust unstable; Thereby cause the not in place or carry of product in the promotion permutation process of L/F; Product meeting not in place causing feeding manipulator crawl position is incorrect, and the product carry will make the L/F distortion, and both of these case all can impact product percent of pass and packaging efficiency.
Summary of the invention
The purpose of this invention is to provide circuit lead frame thrust unit before a kind of preheating, cause to solve before the IC sealed in unit encapsulation preheating in the pre-heating station the not in place or carry of product qualification rate low with the not high problem of packaging efficiency.
For realizing the foregoing invention purpose; The technical scheme that the present invention adopted is: circuit lead frame thrust unit before a kind of preheating, and this thrust unit comprises support, a side of support is installed with motor; The output of said motor is provided with the feed screw nut transmission mechanism; The feed screw nut transmission mechanism is rack-mount, and the nut in the said feed screw nut transmission mechanism links to each other with the push rod translation mechanism, and the push rod translation mechanism of following the nut translation is provided with the push rod that is used to promote lead frame.
Simultaneously, the present invention can also be able to further realization through following technical measures:
Described motor is a brshless DC motor.
Described feed screw nut transmission mechanism is the ball-screw nut transmission mechanism.
Described feed screw nut transmission mechanism comprises leading screw, and leading screw is rotatably assorted with being configured to through bearing, and leading screw links to each other with the output shaft of said motor through shaft coupling, and nut sleeve is located on the leading screw and along the direction translational of leading screw qualification.
Described push rod translation mechanism comprises the axis of guide and movable block; The two ends of the said axis of guide are fixed on the support; And the axially parallel of the axial and leading screw of the axis of guide; The direction translational that described movable block is set on the axis of guide and limits along the axis of guide, the nut in movable block and the feed screw nut transmission mechanism is affixed, and said movable block is provided with push rod.
Said support comprises left frame and the left side frame that is connected with each other; The said axis of guide is made as two, and two axis of guide branches are located at the both sides of leading screw, and the two ends of two axis of guides are erected at respectively on left frame and the left side frame; On left side frame, the other end of leading screw passes the bearing that is arranged on the left frame to one end of said leading screw through bearing fixing, and links to each other with the output shaft of said motor through shaft coupling.
Beneficial effect of the present invention is:
1, the brshless DC motor among the present invention drives the leading screw rotation through shaft coupling; Be set in the nut translation on the leading screw thereby drive; Nut drives movable block and slides along the axis of guide; Therefore the push rod that promotes L/F also moves with movable block together, and whole device just can be accomplished the pushing action of L/F in moving process.Because the present invention adopts push rod that brshless DC motor and ball-screw nut transmission mechanism drive L/F along axis of guide translation, has therefore realized promoting the function of L/F arrival tram.
2, the present invention had both realized the promotion function to L/F, and pushing course is accurately stable, and convenient and swift, cost performance is also higher.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The implication of mark is following among the figure:
10-support, 11-left frame, 12-left side frame, 13-bearing
14-bearing pedestal, 15-support bar, 16-mounting panel, 20-motor
30-push rod, 40-leading screw, 50-nut, 60-shaft coupling
70-axis of guide, 80-movable block.
Embodiment
As shown in Figure 1; Circuit lead frame thrust unit before a kind of preheating, this thrust unit comprises support 10, a side of support 10 is installed with motor 20; The output of said motor 20 is provided with the feed screw nut transmission mechanism; The feed screw nut transmission mechanism is installed on the support 10, and the nut 50 in the said feed screw nut transmission mechanism links to each other with the push rod translation mechanism, and the push rod translation mechanism of following nut 50 translations is provided with the push rod 30 that is used to promote lead frame.
Preferably, described motor 20 is a brshless DC motor; Described feed screw nut transmission mechanism is the ball-screw nut transmission mechanism, to guarantee the stability and the accuracy of pushing course.
As shown in Figure 1; Described feed screw nut transmission mechanism comprises leading screw 40; Leading screw 40 constitutes with support 10 through bearing 13 and is rotatably assorted, and leading screw 40 links to each other with the output shaft of said motor 20 through shaft coupling 60, and nut 50 is set on the leading screw 40 and along the direction translational of leading screw 40 qualifications.
Further; Described push rod translation mechanism comprises the axis of guide 70 and movable block 80; The two ends of the said axis of guide 70 are fixed on the support 10, and the axis of guide 70 axially with the axially parallel of leading screw 40, described movable block 80 is set on the axis of guide 70 and along the direction translational of the axis of guide 70 qualifications; Movable block 80 is affixed with the nut 50 in the feed screw nut transmission mechanism, and said movable block 80 is provided with push rod 30.
Support 10 has multiple implementation, and is as shown in Figure 1 as preferred version of the present invention, and said support 10 comprises the left frame 11 and left side frame 12 that is connected with each other; The said axis of guide 70 is made as two, and two axis of guides were located at the both sides of leading screw 40 in 70 minutes, and the two ends of two axis of guides 70 are erected at respectively on left frame 11 and the left side frame 12; One end of said leading screw 40 is fixed on the left side frame 12 through bearing 13, and the other end of leading screw 40 passes the bearing that is arranged on the left frame 11, and links to each other with the output shaft of said motor 20 through shaft coupling 60.
Below in conjunction with Fig. 1 the present invention is further specified:
Brshless DC motor drives leading screw 40 rotations through shaft coupling 60; Thereby drive nut 50 translations in the ball-screw nut transmission mechanism; Also promptly rotatablely moving of leading screw 40 become the rectilinear motion of nut 50, therefore slides along the direction that will the axis of guide 70 limits with nut 50 relative fixed movable block 80 together with the form of rolling screw transmission, thus the push rod 30 that promotes L/F also with movable block 80 translation together; So whenever move once, entire mechanism just can be accomplished the pushing action of L/F.Because what the present invention taked is the form of direct current machine and rolling screw transmission, running does not steadily have vibration during startup, do not creep during low speed, can obtain very high positioning accuracy and repetitive positioning accuracy, when promoting L/F, just can arrive correct position.
Claims (6)
1. circuit lead frame thrust unit before the preheating; It is characterized in that: this thrust unit comprises support (10); One side of support (10) is installed with motor (20); The output of said motor (20) is provided with the feed screw nut transmission mechanism; The feed screw nut transmission mechanism is installed on the support (10), and the nut (50) in the said feed screw nut transmission mechanism links to each other with the push rod translation mechanism, and the push rod translation mechanism of following nut (50) translation is provided with the push rod (30) that is used to promote lead frame.
2. the pick-and-place device that is used for product behind the integrated circuit plastic packaging according to claim 1, it is characterized in that: described motor (20) is a brshless DC motor.
3. the pick-and-place device that is used for product behind the integrated circuit plastic packaging according to claim 1, it is characterized in that: described feed screw nut transmission mechanism is the ball-screw nut transmission mechanism.
4. according to claim 2 or the 3 described pick-and-place devices that are used for product behind the integrated circuit plastic packaging; It is characterized in that: described feed screw nut transmission mechanism comprises leading screw (40); Leading screw (40) is rotatably assorted through bearing (13) and support (10) formation; And leading screw (40) links to each other with the output shaft of said motor (20) through shaft coupling (60), and nut (50) is set on the leading screw (40) and along the direction translational of leading screw (40) qualification.
5. the pick-and-place device that is used for product behind the integrated circuit plastic packaging according to claim 4; It is characterized in that: described push rod translation mechanism comprises the axis of guide (70) and movable block (80); The two ends of the said axis of guide (70) are fixed on the support (10); And the axially parallel of the axial and leading screw (40) of the axis of guide (70); The direction translational that described movable block (80) is set in that the axis of guide (70) is gone up and limits along the axis of guide (70), movable block (80) is affixed with the nut (50) in the feed screw nut transmission mechanism, and said movable block (80) is provided with push rod (30).
6. the pick-and-place device that is used for product behind the integrated circuit plastic packaging according to claim 5, it is characterized in that: said support (10) comprises left frame (11) and the left side frame (12) that is connected with each other; The said axis of guide (70) is made as two, and two axis of guides (70) divide the both sides that are located at leading screw (40), and the two ends of two axis of guides (70) are erected at respectively on left frame (11) and the left side frame (12); One end of said leading screw (40) is fixed on the left side frame (12) through bearing (13); The other end of leading screw (40) passes the bearing in the bearing pedestal (14) that is arranged on the left frame (11), and links to each other with the output shaft of said motor (20) through shaft coupling (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110214815A CN102332412A (en) | 2011-07-29 | 2011-07-29 | IC (integrated circuit) lead frame thrust unit before preheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110214815A CN102332412A (en) | 2011-07-29 | 2011-07-29 | IC (integrated circuit) lead frame thrust unit before preheating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102332412A true CN102332412A (en) | 2012-01-25 |
Family
ID=45484138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110214815A Pending CN102332412A (en) | 2011-07-29 | 2011-07-29 | IC (integrated circuit) lead frame thrust unit before preheating |
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| Country | Link |
|---|---|
| CN (1) | CN102332412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850549A (en) * | 2018-11-22 | 2019-06-07 | 安徽大华半导体科技有限公司 | A kind of lead frame stirs transfer device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4674238A (en) * | 1984-10-03 | 1987-06-23 | Fuji Seiki Machine Works, Ltd. | Lead frame handling apparatus for blasting machine |
| JPS63203307A (en) * | 1987-02-20 | 1988-08-23 | Hitachi Ltd | Transporting device |
| JP2001135655A (en) * | 1999-11-05 | 2001-05-18 | Nec Corp | Lead frame supply mechanism |
| CN2699472Y (en) * | 2004-05-26 | 2005-05-11 | 铜陵三佳模具股份有限公司 | A slice arranging device of lead frame |
| CN202259201U (en) * | 2011-07-29 | 2012-05-30 | 铜陵富仕三佳机械有限公司 | Thrust device of integrated circuit lead frame before preheating |
-
2011
- 2011-07-29 CN CN201110214815A patent/CN102332412A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4674238A (en) * | 1984-10-03 | 1987-06-23 | Fuji Seiki Machine Works, Ltd. | Lead frame handling apparatus for blasting machine |
| JPS63203307A (en) * | 1987-02-20 | 1988-08-23 | Hitachi Ltd | Transporting device |
| JP2001135655A (en) * | 1999-11-05 | 2001-05-18 | Nec Corp | Lead frame supply mechanism |
| CN2699472Y (en) * | 2004-05-26 | 2005-05-11 | 铜陵三佳模具股份有限公司 | A slice arranging device of lead frame |
| CN202259201U (en) * | 2011-07-29 | 2012-05-30 | 铜陵富仕三佳机械有限公司 | Thrust device of integrated circuit lead frame before preheating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850549A (en) * | 2018-11-22 | 2019-06-07 | 安徽大华半导体科技有限公司 | A kind of lead frame stirs transfer device and method |
| CN109850549B (en) * | 2018-11-22 | 2021-08-24 | 安徽大华半导体科技有限公司 | Poking and transferring device and method for lead frame |
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Application publication date: 20120125 |