CN211282827U - Ejector pin assembly - Google Patents
Ejector pin assembly Download PDFInfo
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- CN211282827U CN211282827U CN201922158809.8U CN201922158809U CN211282827U CN 211282827 U CN211282827 U CN 211282827U CN 201922158809 U CN201922158809 U CN 201922158809U CN 211282827 U CN211282827 U CN 211282827U
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Abstract
The utility model relates to the technical field of wafer suction in semiconductor packaging, in particular to a thimble assembly, which comprises a moving mechanism and a bracket arranged on the moving mechanism, wherein the moving mechanism is used for driving the bracket to move; the cam disc is rotationally arranged on the bracket, and the motor is used for driving the cam disc to rotate; the needle body is arranged on the support or the cylinder body part in a sliding manner, and the first elastic part is used for driving the needle body to press and abut against the cam disc; the needle body penetrates through the end face of the free end of the barrel body part, the barrel body part is provided with a plurality of suction holes arranged around the needle body, and the suction holes penetrate through the end face of the free end of the barrel body part; the moving mechanism drives the bracket to move the needle body so that the needle body is aligned with the object to be sucked; the motor drives the cam disc to rotate so that the needle body protrudes out of the end face of the cylinder part and positions the object to be sucked; the plurality of suction holes suck the object positioned by the needle body; the yield rate of the objects to be sucked is improved.
Description
Technical Field
The utility model relates to a wafer absorbs technical field in the semiconductor package, especially discloses a thimble assembly.
Background
In order to improve the transferring efficiency of the object, the object is transferred by using the manipulator in the prior art, and at this time, the manipulator is required to be provided with a gripper for picking up the object.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a thimble assembly, wherein a moving mechanism drives a bracket to move a needle body so that the needle body is aligned with an article to be sucked; the motor drives the cam disc to rotate so that the needle body protrudes out of the end face of the cylinder part and positions the object to be sucked; the plurality of suction holes suck the object positioned by the needle body; the yield rate of the objects to be sucked is improved.
In order to achieve the above object, the present invention provides a thimble assembly, including a moving mechanism, a support disposed on the moving mechanism, the moving mechanism is used for driving the support to move; the cam disc is rotationally arranged on the bracket, and the motor is used for driving the cam disc to rotate; the needle body is arranged on the support or the cylinder body part in a sliding manner, and the first elastic part is used for driving the needle body to press and abut against the cam disc; the needle body runs through the terminal surface of the free end of barrel spare, and barrel spare is equipped with a plurality of suction holes around the needle body setting, and the suction hole runs through the terminal surface of the free end of barrel spare.
The moving mechanism comprises a first plate body, a second plate body arranged on the first plate body in a sliding mode, a first stud connected to the first plate body in a threaded mode, and a second elastic piece arranged between the first plate body and the second plate body and driving the second plate body to abut against the free end of the first stud.
Furthermore, the moving mechanism further comprises a third plate body arranged in a sliding mode with the first plate body, a second stud connected to the third plate body in a threaded mode, and a third elastic piece arranged between the first plate body and the third plate body and used for driving the first plate body to abut against the free end of the second stud, and the sliding direction of the first plate body is arranged in a cross mode with the sliding direction of the second plate body.
The first elastic piece is a spring sleeved on the outer side of the sliding rod, one end of the spring abuts against the block body, and the other end of the spring abuts against the support or the barrel piece.
Furthermore, the block body is connected with a guide post which is arranged in parallel with the slide rod, and the guide post is in sliding fit with the bracket.
Wherein, the linear bearing is arranged on the bracket or the cylinder part and is sleeved outside the sliding rod in a sliding way.
Furthermore, the sliding rod is connected with a needle rod, the needle body is detachably connected with the needle rod, and the barrel body piece is sleeved outside the needle rod.
Wherein, the needle bar can be dismantled and be connected with the syringe needle seat, and the needle bar is equipped with first scarce groove and lacks the groove with the second that first lack the groove intercommunication, and the syringe needle seat is equipped with the locating plate that is located first lack the inslot and is located the location strip that the second lacks the inslot, and the needle body sets up in the syringe needle seat.
Furthermore, the bracket is provided with a guide block, the linear bearing is arranged on the guide block, and the guide pillar is in sliding fit with the guide block; the guide block is provided with a guide head, the needle rod is arranged in the guide head in a sliding mode, and the barrel part is arranged on the guide head.
The guide block is provided with a gas passing hole communicated with the suction holes, a sealing ring is sleeved on the outer side of the guide head and used for sealing a gap between the guide head and the barrel part, and the guide head is provided with an annular blind groove used for accommodating the sealing ring.
Has the advantages that: the moving mechanism drives the bracket to move the needle body so that the needle body is aligned with the object to be sucked; the motor drives the cam disc to rotate so that the needle body protrudes out of the end face of the cylinder part and positions the object to be sucked; the plurality of suction holes suck the object positioned by the needle body; the yield rate of the objects to be sucked is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a perspective view of the needle bar and needle seat of the present invention.
The reference numerals include:
1-moving mechanism 2-support 3-cam disc
4-motor 5-cylinder 6-needle body
7-first elastic member 8-first plate 9-second plate
11-second elastic member 12-slide rod 13-block
14-guide post 15-needle bar 16-needle seat
17-first notch 18-second notch 19-positioning plate
21-positioning strip 22-guide block 23-guide head
24-sealing ring 25-annular blind groove.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
Referring to fig. 1-3, a thimble assembly of the present invention includes a moving mechanism 1 and a support 2 installed on the moving mechanism 1, wherein the moving mechanism 1 is used for driving the support 2 to move; the device also comprises a cam disc 3 rotationally arranged on the bracket 2, a motor 4 used for driving the cam disc 3 to rotate, a cylinder body part 5 arranged at the top end of the bracket 2, a needle body 6 arranged on the bracket 2 or the cylinder body part 5 in a sliding way, and a first elastic part 7 used for driving the needle body 6 to press and abut against the cam disc 3.
The needle body 6 slides up and down along the vertical direction relative to the bracket 2, the cam disc 3 is provided with a shaft part, one end of the shaft part is rotatably arranged with the bracket 2, and the output shaft of the motor 4 is connected with the other end of the shaft part. The needle body 6 runs through the terminal surface of the free end of the barrel part 5, the barrel part 5 is provided with a plurality of suction holes arranged around the needle body 6, the suction holes run through the terminal surface of the free end of the barrel part 5, and one end of the suction holes far away from the terminal surface of the free end of the barrel part 5 is communicated with an external vacuum generator or an air extractor.
The moving mechanism 1 drives the bracket 2 to move the needle body 6, so that the needle body 6 is aligned with an object to be sucked; the motor 4 drives the cam disc 3 to rotate so that the needle body 6 protrudes out of the end face of the cylinder body part 5 and positions an object to be sucked; the plurality of suction holes suck the object positioned by the needle body 6; the yield rate of the objects to be sucked is improved.
The moving mechanism 1 comprises a first plate body 8, a second plate body 9 arranged on the first plate body 8 in a sliding mode, a first stud bolt connected to the first plate body 8 in a threaded mode, a second elastic piece 11 arranged between the first plate body 8 and the second plate body 9 and driving the second plate body 9 to abut against the free end of the first stud bolt, and the support 2 is arranged on the second plate body 9. In this embodiment, the second elastic member 11 is a tension spring, the first plate 8 and the second plate 9 are both provided with protruding columns, and two ends of the second elastic member 11 are respectively hung on the protruding columns of the first plate 8 and the protruding columns of the second plate 9.
When the position of the needle body 6 needs to be adjusted, the first stud is rotated to enable the first stud to move relative to the first plate body 8, the second elastic piece 11 pulls the second plate body 9 to enable the second plate body 9 to abut against the free end of the first stud, when the first stud moves relative to the first plate body 8, the second elastic piece 11 pulls the second plate body 9 to enable the second plate body 9 to slide relative to the first plate body 8, the sliding second plate body 9 drives the needle body 6 to move through the support 2, and the position of the needle body 6 is adjusted. Of course, the number of the second elastic members 11 may be plural as needed.
The moving mechanism 1 further comprises a third plate body arranged in a sliding mode with the first plate body 8, a second stud screwed on the third plate body, and a third elastic piece arranged between the first plate body 8 and the third plate body and driving the first plate body 8 to abut against the free end of the second stud, wherein the first plate body 8 is located between the second plate body 9 and the third plate body, and the sliding direction of the first plate body 8 is arranged in a cross mode with the sliding direction of the second plate body 9. Preferably, the sliding direction of the first plate 8 is arranged perpendicular to the sliding direction of the second plate 9.
The outer side of the cam disc 3 is sleeved with a rolling bearing, the needle body 6 is connected with a slide rod 12 which is in sliding fit with the bracket 2 or the barrel part 5, the lower end of the slide rod 12 is connected with a block body 13 which is abutted against the outer ring of the rolling bearing, and the abrasion and the friction noise between the block body 13 and the cam disc 3 are reduced through the arrangement of the rolling bearing.
The first elastic element 7 is a spring sleeved on the outside of the slide rod 12, one end of the spring is abutted against the block 13, and the other end of the spring is abutted against the bracket 2 or the barrel element 5. Through the setting of spring for block 13 contradicts all the time on antifriction bearing's outer lane, prevents that block 13 and antifriction bearing separation from resulting in the movement stroke uncontrollable of needle body 6.
The block 13 is connected with a guide post 14 arranged in parallel with the slide rod 12, and the guide post 14 is in sliding fit with the bracket 2. The slide rod 12 is prevented from rotating with respect to the frame 2 by the guide post 14, and the slide rod 12 is ensured to be slidable only with respect to the frame 2 and not rotatable with respect to the frame 2, thereby ensuring the stability of the slide rod 12.
The bracket 2 or the barrel 5 is provided with a linear bearing which is sleeved outside the sliding rod 12 in a sliding way. Through the arrangement of the linear bearing, the abrasion and the friction noise between the slide rod 12 and the bracket 2 are reduced, and the stability of the vertical movement of the slide rod 12 and the needle body 6 is ensured.
In this embodiment, a needle rod 15 is connected to an end of the slide rod 12 away from the block 13, the needle body 6 is detachably connected to the needle rod 15, and the barrel 5 is sleeved on an outer side of the needle rod 15.
The matching of the positioning plate 19 and the first notch 17 and the matching of the positioning strip 21 and the second notch 18 ensure that the needle seat 16 can only be installed on the needle rod 15 along a preset orientation, and prevent the needle seat 16 from changing the installation position relative to the needle rod 15 and being used badly.
The support 2 is provided with a guide block 22, the guide block 22 is installed on the top end of the support 2, the linear bearing is installed in the guide block 22, the guide post 14 is in sliding fit with the guide block 22, and the guide block 22 is provided with a guide hole for accommodating the guide post 14. The guide block 22 is provided with a guide head 23, the needle rod 15 is arranged in the guide head 23 in a sliding way, the needle rod 15 penetrates through the guide head 23, and the barrel member 5 is arranged on the guide head 23.
The guide block 22 is provided with air passing holes communicated with the plurality of suction holes, and the air passing holes are communicated with an external vacuum generator or an air extractor. The sealing ring 24 is sleeved outside the guide head 23, and the sealing ring 24 is used for sealing the gap between the guide head 23 and the cylinder 5, so as to prevent the suction hole from being incapable of sucking objects due to air leakage of the gap between the guide head 23 and the cylinder 5. The guide head 23 is provided with an annular blind groove 25 for accommodating the sealing ring 24, and the inner groove wall of the annular blind groove 25 is used for stopping and abutting against the sealing ring 24 to prevent the sealing ring 24 from moving relative to the guide head 23. Of course, the number of the seal rings 24 may be plural, and the plural seal rings 24 are arranged in the longitudinal direction of the seal head.
The above description is only for the preferred embodiment of the present invention, and the present specification should not be construed as limiting the present invention. The eccentric wheel and the motor direct-connected type efficiency-improving pushing step are required to be highlighted, and the eccentric wheel is in direct contact with the eccentric wheel.
Claims (10)
1. A thimble assembly comprises a moving mechanism and a support arranged on the moving mechanism, wherein the moving mechanism is used for driving the support to move; the method is characterized in that: the cam disc is rotationally arranged on the bracket, and the motor is used for driving the cam disc to rotate; the needle body is arranged on the support or the cylinder body part in a sliding manner, and the first elastic part is used for driving the needle body to press and abut against the cam disc; the needle body runs through the terminal surface of the free end of barrel spare, and barrel spare is equipped with a plurality of suction holes around the needle body setting, and the suction hole runs through the terminal surface of the free end of barrel spare.
2. The ejector pin assembly of claim 1, wherein: the moving mechanism comprises a first plate body, a second plate body arranged on the first plate body in a sliding mode, a first stud connected to the first plate body in a threaded mode, and a second elastic piece arranged between the first plate body and the second plate body and driving the second plate body to abut against the free end of the first stud.
3. The ejector pin assembly of claim 2, wherein: the moving mechanism further comprises a third plate body arranged with the first plate body in a sliding mode, a second stud connected to the third plate body in a threaded mode, and a third elastic piece arranged between the first plate body and the third plate body and driving the first plate body to abut against the free end of the second stud, and the sliding direction of the first plate body is arranged in a cross mode with the sliding direction of the second plate body.
4. The ejector pin assembly of claim 1, wherein: the outer side of the cam disc is sleeved with a rolling bearing, the needle body is connected with a sliding rod in sliding fit with the support or the barrel part, the lower end of the sliding rod is connected with a block body abutting against the outer ring of the rolling bearing, the first elastic part is a spring sleeved on the outer side of the sliding rod, one end of the spring abuts against the block body, and the other end of the spring abuts against the support or the barrel part.
5. The ejector pin assembly of claim 4, wherein: the block body is connected with a guide post which is arranged in parallel with the slide rod, and the guide post is in sliding fit with the bracket.
6. The ejector pin assembly of claim 4, wherein: the linear bearing is arranged on the bracket or the cylinder part and is sleeved outside the sliding rod in a sliding way.
7. The ejector pin assembly of claim 6, wherein: the sliding rod is connected with a needle rod, the needle body is detachably connected to the needle rod, and the barrel body piece is sleeved outside the needle rod.
8. The ejector pin assembly of claim 7, wherein: the needle rod is detachably connected with a needle head seat, the needle rod is provided with a first notch groove and a second notch groove communicated with the first notch groove, the needle head seat is provided with a positioning plate positioned in the first notch groove and a positioning strip positioned in the second notch groove, and the needle body is arranged on the needle head seat.
9. The ejector pin assembly of claim 7, wherein: the support is provided with a guide block, the linear bearing is arranged on the guide block, and the guide pillar is in sliding fit with the guide block; the guide block is provided with a guide head, the needle rod is arranged in the guide head in a sliding mode, and the barrel part is arranged on the guide head.
10. The ejector pin assembly of claim 9, wherein: the guide block is provided with air passing holes communicated with the suction holes, a sealing ring is sleeved on the outer side of the guide head and used for sealing a gap between the guide head and the barrel part, and the guide head is provided with an annular blind groove used for accommodating the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922158809.8U CN211282827U (en) | 2019-12-05 | 2019-12-05 | Ejector pin assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922158809.8U CN211282827U (en) | 2019-12-05 | 2019-12-05 | Ejector pin assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211282827U true CN211282827U (en) | 2020-08-18 |
Family
ID=72038064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922158809.8U Active CN211282827U (en) | 2019-12-05 | 2019-12-05 | Ejector pin assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211282827U (en) |
-
2019
- 2019-12-05 CN CN201922158809.8U patent/CN211282827U/en active Active
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