CN208408879U - Clamping device - Google Patents
Clamping device Download PDFInfo
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- CN208408879U CN208408879U CN201820613270.3U CN201820613270U CN208408879U CN 208408879 U CN208408879 U CN 208408879U CN 201820613270 U CN201820613270 U CN 201820613270U CN 208408879 U CN208408879 U CN 208408879U
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- cramping body
- clamping device
- clamping
- cramping
- flexible cylinder
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Abstract
The utility model relates to a kind of clamping devices, for clamping lead frame, including main body, the first cramping body, the second cramping body and flexible cylinder, first cramping body and second cramping body are oppositely arranged, second cramping body is connect with the body rotation, the flexible cylinder is set between first cramping body and second cramping body, the flexible cylinder includes air bag, when the air bag inflation, second cramping body is pushed to rotate for the air bag so that first cramping body and second cramping body clamp the lead frame.Above-mentioned gripping apparatus grips power is larger and is suitable for the clamping of different-thickness lead frame.
Description
Technical field
The utility model relates to LED or technical field of semiconductor encapsulation, more particularly to a kind of clamping device.
Background technique
In the rear end process of semiconductor and LED encapsulation process, ultrasonic wire is mostly used to be bonded.In order to chip and it
Connection is established between lead frame, general diameter is on the pad that 20~75 microns metal wire one end is bonded on chip, separately
One end is bonded on the corresponding position of lead frame.It may accommodate dozens to hundreds of a chip on a piece of lead frame, therefore on
The process for stating wire bond will continue all to set up this gold between chip bonding pad and lead frame all on lead frame
Until the connection for belonging to line.
In order to which the lead frame sequence equipped with chip is moved into bond area, usually come using a kind of linear orientation mechanism
High-precision positioning is done to lead frame.The positioning mechanism includes a set of servo system for being able to achieve the positioning movement of high-precision straight line
System, there are two clamping devices for installation thereon, are located at feed zone and the discharge zone of wire bonder, each clamping device can
The individually movement that control is implemented clamping to lead frame and unclamped.
With the development of technology and the continuous improvement of client's requirement, wire bonder is at high speed and high-precision
It is required that becoming more more and more urgent, equally also require the clamping of lead frame and positioning more reliable, accurate.And existing clamping device is deposited
It is small in chucking power and can not be suitable for different-thickness lead frame the problem of.
Utility model content
Based on this, a kind of clamping device is provided, it is desirable to provide biggish driving force realizes the strong folder to lead frame
It holds, while can be realized the clamping to different-thickness lead frame.
A kind of clamping device is used for clamping lead frame, including main body, the first cramping body, the second cramping body and flexible air
Cylinder, first cramping body and second cramping body are oppositely arranged, and second cramping body is connect with the body rotation, institute
It states flexible cylinder to be set between first cramping body and second cramping body, the flexible cylinder includes air bag, when described
When air bag inflation, second cramping body is pushed to rotate for the air bag so that first cramping body and second clamping
Body clamps the lead frame.
Above-mentioned clamping device, is driven using flexible cylinder, can provide biggish driving force, drives the rotation of the second cramping body,
Realize the strong clamping to lead frame.For flexible cylinder, the generation of driving force depends on the air pressure of compressed air, right
There is no the difference of apparent power output for the clamping specific location locating for the second cramping body that it is driven, therefore may be implemented
The chucking power of different-thickness lead frame is stablized in a lesser range.Further, this driving method is to lead
During frame is clamped and unclamped, since driving force is relatively stable, simultaneously because can will be pressed from both sides the characteristics of flexible cylinder itself
It holds the vibration generated with release process and impact force controls in a lesser range, the lead frame after para-linkage is clamping
Better protective effect is played in the process.
The clamping device further includes reset assembly in one of the embodiments, when the air bags are shunk, institute
Stating reset assembly drives first cramping body and the second cramping body relative motion to initial position.
The reset assembly includes compression elastic piece in one of the embodiments, and the compression elastic piece is set to described
Between second cramping body and the main body, when the air bags are shunk, second cramping body is in the compression elastic piece
Elastic force under the action of return back to initial position.
First cramping body is connect with the body rotation in one of the embodiments,.
The reset assembly further includes draw springs in one of the embodiments, and the draw springs are set to institute
It states between the first cramping body and second cramping body, when the air bags are shunk, first cramping body and described the
Two cramping bodies relative motion and return back to initial position under the action of the elastic force of the draw springs.
The clamping device further includes regulating part in one of the embodiments, and the regulating part is set to the main body, is used
Maximum opening angle between adjusting first cramping body and second cramping body.
First cramping body is equipped with first rotating shaft in one of the embodiments, and second cramping body is equipped with second
Shaft, the clamping device include several rolling bearings, the rolling bearing be set to the first rotating shaft/second shaft with it is described
Between main body.
First cramping body includes clamping limb and the clamping jaw set on the clamping limb, institute in one of the embodiments,
The distance for stating flexible cylinder to the first rotating shaft is greater than the clamping jaw to the distance of the first rotating shaft.
In one of the embodiments, second cramping body be equipped with contact plate, the air bag formed it is fluted, it is described to connect
Touch panel is equipped with the convex block matched with the groove.
The flexible cylinder is equipped with gas-tpe fitting in one of the embodiments, and compressed gas passes through the gas-tpe fitting
The into or out flexible cylinder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that clamping device is in clamped condition in an embodiment；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the structural schematic diagram that clamping device is in releasing orientation in an embodiment；
Fig. 4 is the structural schematic diagram of clamping device in an embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein "inner", "outside", "left", "right" and
Similar statement for illustrative purposes only, is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
Fig. 1 and Fig. 2 are please referred to, a kind of clamping device 100 is used for clamping lead frame 200, including main body 10, first is pressed from both sides
Body 20, the second cramping body 30 and flexible cylinder 40 are held, the first cramping body 20 and the second cramping body 30 are oppositely arranged, the second cramping body
30 are rotatablely connected with main body 10, and flexible cylinder 40 is set between the first cramping body 20 and the second cramping body 30, and flexible cylinder 40 wraps
Cylinder body 41 and the air bag 42 for being connected to cylinder body 41 are included, when compressed gas enters air bag 42 by cylinder body 41,42 inflation of air bag
And the second cramping body 30 is pushed to rotate so that the first cramping body 20 and the second cramping body 30 clamp lead frame 200.
Above-mentioned clamping device 100 is driven using flexible cylinder 40, can provide biggish driving force, drives the second cramping body
30 rotations, realize the strong clamping to lead frame 200.For flexible cylinder 40, the generation of driving force depends on compression
The air pressure of air, there is no the differences of apparent power output for clamping specific location locating for the second cramping body 30 driven for it
Not, it therefore may be implemented to stablize in a lesser range chucking power of different-thickness lead frame 200.Further,
This driving method is during clamping lead frame 200 and unclamping, since driving force is relatively stable, simultaneously because flexible air
The characteristics of cylinder 40 itself, can will clamp the vibration generated with release process and impact force controls in a lesser range,
Lead frame 200 after para-linkage plays better protective effect in clamping process.
In some embodiments, the first cramping body 20 is rotatablely connected with main body 10.Clamp the action process of lead frame 200
As follows: the motive force that flexible cylinder 40 generates pushes the second cramping body 30 along clockwise direction (direction as shown in arrow b in Fig. 4)
Rotation, until touching lead frame 200.According to the interaction principle of power, flexible cylinder 40 generates the second cramping body 30
While motive force, the second cramping body 30 can generate the identical and contrary reaction force of a size to flexible cylinder 40,
The reaction force pushes the first cramping body 20 to rotate in the counterclockwise direction, until touching lead frame 200, to realize
Complete clamping of the clamping device 100 to lead frame 200.Since the first cramping body 20 and the second cramping body 30 move at the same time,
Rotation amplitude is small, helps to improve control precision and production efficiency.
In other embodiments, the first cramping body 20 is fixedly connected with main body 10, and flexible cylinder 40 pushes the second cramping body
30 rotations, the end of the second cramping body 30 is close to the first cramping body 20, to clamp lead frame 200.
Main body 10 is formed with accommodating chamber, the first cramping body 20 and the second cramping body 30 through and out accommodating chamber, and with receipts
The inner wall of cavity is rotatablely connected.Referring to Fig. 4, the first cramping body 20 is equipped with first rotating shaft 21, the second cramping body 30 is equipped with second
Shaft 31, clamping device 100 include several rolling bearings 50, and rolling bearing 50 is set to 20/ second shaft 30 of first rotating shaft and master
Between body 10.Rolling bearing 50 is used to support first rotating shaft 21 and the second shaft 31, and ensures first rotating shaft 21 and the second shaft
31 can be freely rotated.
Referring to Fig. 1, the first cramping body 20 includes that clamping limb 22 and the clamping jaw 23 set on clamping limb 22, flexible cylinder 40 arrive
The distance of first rotating shaft 21 is greater than the distance that clamping jaw 23 arrives first rotating shaft 21.According to lever principle, flexible cylinder 40 is to clamping limb
22 apply a lesser driving force, and clamping jaw 23 can generate biggish clamping force to clamped lead frame 200.
Referring to Fig. 2, the second cramping body 30 is equipped with contact plate 32, air bag 42 forms fluted 421, contact plate 32 be equipped with
The convex block 321 that groove 421 matches.It during 42 expansion or shrinkage of air bag, is matched, is prevented with convex block 321 by groove 421
Only air bag 42 is mutually disengaged with contact plate 32, pushes the rotation of the second cramping body 30 convenient for flexible cylinder 40.
Referring to Fig. 4, flexible cylinder 40 is equipped with gas-tpe fitting 43, compressed gas passes through the into or out cylinder of gas-tpe fitting 43
Body 41.Flexible cylinder 40 is connect by gas-tpe fitting 43 with external compressed gas source, and flexible cylinder 40 and compressed gas source
Connecting pipe on be provided with solenoid valve, for controlling compressed gas by the into or out cylinder body 41 of gas-tpe fitting 43.
Referring to Fig. 1, clamping device 100 further includes reset assembly (not shown), and when air bag 42, which is vented, to be shunk, reset group
Part drives the first cramping body 20 and 30 relative motion of the second cramping body to initial position.Wherein, initial position refers to clamping device
100 do not carry out before holding action (i.e. clamping device 100 is in open configuration), locating for the first cramping body 20 and the second cramping body 30
Position.
Reset assembly includes compression elastic piece 60, and compression elastic piece 60 is set between the second cramping body 30 and main body 10, when
42 inflation of air bag and when clamping device 100 being made to clamp lead frame 200, due to opposite 10 edge of main body of the second cramping body 30
It is rotated clockwise, so that compression elastic piece 60 is squeezed, so that compression elastic piece 60 is in compressive state；When air bag 42 is vented
When contraction, the second cramping body of resilient force 30 on compression elastic piece 60 turns to initial position in the counterclockwise direction and realizes
It resets, and then clamping device 100 unclamps lead frame 200.
It should be noted that compression elastic piece 60 is compressed spring or other elastic components made of elastic material.
Specifically, the end of main body 10 is extended with fixed plate 11,60 one end of compression elastic piece is connected to fixed plate 11, another
End is connected to the second cramping body 30.
In other embodiments, reset assembly further includes draw springs 70, and draw springs 70 are set to the first cramping body
20 and second between cramping body 30, when 42 inflation of air bag makes clamping device 100 clamp lead frame 200, due to
The opposite main body 10 of second cramping body 30 is rotated in a clockwise direction, and the first cramping body 20 is rotated in the counterclockwise direction, to stretch
Elastic component 70 is elongated, so that draw springs 70 are in tensional state；When air bag 42, which is vented, to be shunk, on draw springs 70
Resilient force the first cramping body 20 and the second cramping body 30 turn to initial position and realize reset, and then clamping device
100 unclamp lead frame 200.
It should be noted that draw springs 70 are extension spring or other elastic components made of elastic material.First
Cramping body 20 is connected with the first bolt far from the threaded one end of clamping jaw 23, and the second cramping body 30 is correspondingly provided with the second bolt, stretches
The both ends of elastic component 70 are connected to the first bolt and the second bolt.
Referring to Fig. 1, clamping device 100 further includes regulating part 80, regulating part 80 is set to main body 10, for adjusting the first folder
Hold the maximum opening angle of body 20 and the second cramping body 30.The regulating part 80 can be screw or bolt.
In one embodiment, regulating part 80 is set to the side wall of accommodating chamber, shrinks when air bag 42 is vented, the first cramping body
20 and second cramping body 30 when returning back to initial position under the drive of reset assembly, regulating part 80 is connected to the first cramping body
20, so that the first cramping body 20 of limitation continues to rotate, the angle of the first cramping body 20 and the second cramping body 30 is maximum at this time
Opening angle.
When the thickness of lead frame 200 is smaller, it is rotated down regulating part 80, reduces the first cramping body 20 and the second clamping
The maximum opening angle of body 30 improves production efficiency to reduce the opening amplitude of the first cramping body 20.When lead frame 200
Thickness it is larger when, upwards rotate regulating part 80, increase the first cramping body 20 and the second cramping body 30 maximum opening angle, i.e.,
The spacing for increasing clamping jaw 23 and 30 upper gripper jaw of the second cramping body facilitates lead frame 200 to enter.The setting of regulating part 80, so that
The clamping device 100 is suitable for the clamping of different-thickness lead frame 200, enhances applicability.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of clamping device is used for clamping lead frame, which is characterized in that including main body, the first cramping body, the second cramping body
And flexible cylinder, first cramping body and second cramping body are oppositely arranged, second cramping body and the main body turn
Dynamic connection, the flexible cylinder are set between first cramping body and second cramping body, and the flexible cylinder includes gas
Capsule, when the air bag inflation, the air bag pushes the second cramping body rotation so that first cramping body and institute
It states the second cramping body and clamps the lead frame.
2. clamping device according to claim 1, which is characterized in that the clamping device further includes reset assembly, works as institute
When stating air bags and shrinking, the reset assembly drives first cramping body and the second cramping body relative motion to initial
Position.
3. clamping device according to claim 2, which is characterized in that the reset assembly includes compression elastic piece, described
Compression elastic piece is set between second cramping body and the main body, when the air bags are shunk, second clamping
Body returns back to initial position under the action of the elastic force of the compression elastic piece.
4. clamping device according to claim 2, which is characterized in that first cramping body and the body rotation connect
It connects.
5. clamping device according to claim 4, which is characterized in that the reset assembly further includes draw springs, institute
Draw springs are stated to be set between first cramping body and second cramping body, it is described when the air bags are shunk
First cramping body and second cramping body relative motion and return back to just under the action of the elastic force of the draw springs
Beginning position.
6. clamping device according to claim 4, which is characterized in that the clamping device further includes regulating part, the tune
It saves part and is set to the main body, for adjusting the maximum opening angle between first cramping body and second cramping body.
7. clamping device according to claim 4, which is characterized in that first cramping body is equipped with first rotating shaft, described
Second cramping body is equipped with the second shaft, and the clamping device includes several rolling bearings, and the rolling bearing is set to described first
Shaft/between the second shaft and the main body.
8. clamping device according to claim 7, which is characterized in that first cramping body include clamping limb and be set to institute
State the clamping jaw of clamping limb, the distance of the flexible cylinder to the first rotating shaft be greater than the clamping jaw to the first rotating shaft away from
From.
9. clamping device according to claim 1, which is characterized in that second cramping body is equipped with contact plate, the gas
Capsule forms fluted, and the contact plate is equipped with the convex block that matches with the groove.
10. clamping device according to claim 1, which is characterized in that the flexible cylinder is equipped with gas-tpe fitting, compressed gas
Body passes through the into or out flexible cylinder of the gas-tpe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820613270.3U CN208408879U (en) | 2018-04-26 | 2018-04-26 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820613270.3U CN208408879U (en) | 2018-04-26 | 2018-04-26 | Clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208408879U true CN208408879U (en) | 2019-01-22 |
Family
ID=65116356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820613270.3U Active CN208408879U (en) | 2018-04-26 | 2018-04-26 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208408879U (en) |
-
2018
- 2018-04-26 CN CN201820613270.3U patent/CN208408879U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518051 Dazu laser building, 9 new West Road, North Nanshan District high tech park, Shenzhen, Guangdong Patentee after: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee after: Shenzhen Dazu Photoelectric Equipment Co.,Ltd. Address before: 518051 Dazu laser building, 9 new West Road, North Nanshan District high tech park, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee before: SHENZHEN HAN'S PHOTOELECTRIC EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220316 Address after: 518000 floor 6, building 5, Han's laser Industrial Park, No. 128, Chongqing Road, Fuyong street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Dazu Photoelectric Equipment Co.,Ltd. Address before: 518051 Dazu laser building, 9 new West Road, North Nanshan District high tech park, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee before: Shenzhen Dazu Photoelectric Equipment Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 floor 6, building 5, Han's laser Industrial Park, No. 128, Chongqing Road, Fuyong street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Han family sealing and Testing Technology Co.,Ltd. Address before: 518000 floor 6, building 5, Han's laser Industrial Park, No. 128, Chongqing Road, Fuyong street, Bao'an District, Shenzhen, Guangdong Province Patentee before: Shenzhen Dazu Photoelectric Equipment Co.,Ltd. |