CN220880145U - Cutting device for lead frame - Google Patents
Cutting device for lead frame Download PDFInfo
- Publication number
- CN220880145U CN220880145U CN202322407320.6U CN202322407320U CN220880145U CN 220880145 U CN220880145 U CN 220880145U CN 202322407320 U CN202322407320 U CN 202322407320U CN 220880145 U CN220880145 U CN 220880145U
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- CN
- China
- Prior art keywords
- die holder
- blanking
- cutting device
- lower die
- positioning
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- 238000005520 cutting process Methods 0.000 title claims abstract description 43
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000004080 punching Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Abstract
The utility model relates to a cutting device for a lead frame, comprising: the die holder mounting frame is characterized in that a blanking upper die is movably arranged on a top plate of the die holder mounting frame along the Z-axis direction, the blanking upper die comprises an upper die holder and a punch, and the punch is detachably connected to the upper die holder; a lower die base is arranged on the die base mounting frame bottom plate, and a blanking die is detachably arranged on the lower die base; the lower die holder is provided with a floating positioning component, and the positioning component is used for positioning a product during feeding and ejecting the product during discharging. According to the utility model, the positioning component is arranged, so that the product to be cut on the feeding guide rail is received before cutting operation, and the product to be cut is positioned and clamped on the positioning pin by the descending of the supporting plate, so that the dimensional error of the blanked product is reduced; the product to be cut automatically ejects upwards by the supporting plate after the cutting operation, so that the blanking is convenient; the punch and the blanking die are detachably arranged, and when the size of a cut product changes, only the punch and the blanking die are required to be replaced, so that the applicability of the device is improved.
Description
Technical Field
The application belongs to the technical field of lead frame cutting equipment, and particularly relates to a cutting device for a lead frame.
Background
The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electric connection between the lead-out end of the internal circuit of the chip and an external lead by means of bonding materials such as gold wires, aluminum wires and copper wires, and plays a role of a bridge connected with an external lead, and most of semiconductor integrated blocks need to use the lead frame, so that the lead frame is an important basic material in the electronic information industry. The auxiliary cutting sample of the cutting equipment is needed during the lead frame sampling detection, other products on the lead frame are normally reserved, the positioning pin of the existing lead frame cutting equipment is fixedly connected to the punching lower die holder, the positioning hole of the lead frame and the positioning pin are required to be aligned and spliced manually during feeding to realize product positioning, and the lead frame is required to be lifted up and separated from the positioning pin manually during cutting and discharging, so that the operation is complex.
Disclosure of utility model
The utility model aims to solve the technical problems that: in order to solve the defects in the prior art, the cutting device for the lead frame aims at least realizing one of the technical effects of automatically jacking the lead frame after cutting operation, conveniently positioning and clamping the lead frame on a lower die holder before cutting operation and improving the applicability to the size of a blanking product.
The technical scheme adopted for solving the technical problems is as follows:
A cutting device for a lead frame, comprising:
The die holder comprises a die holder mounting frame, wherein a blanking upper die is movably arranged on a top plate of the die holder mounting frame along the Z-axis direction, the blanking upper die comprises an upper die holder and a punch, and the punch is detachably connected to the upper die holder;
A lower die holder is arranged on the die holder mounting rack bottom plate, and a blanking die is detachably arranged on the lower die holder;
The lower die holder is provided with a floating positioning component, and the positioning component is used for positioning products during feeding and ejecting the products during discharging.
Preferably, in the cutting device for the lead frame of the utility model, the lower die holder is provided with a position avoidance groove, and a bottom plate of the position avoidance groove is fixedly connected with a positioning pin.
Preferably, in the cutting device for the lead frame, a positioning assembly is arranged in the clearance groove in a floating mode, the positioning assembly comprises a supporting plate, and the positioning pin penetrates through the supporting plate.
Preferably, in the cutting device for the lead frame of the present utility model, the thickness of the supporting plate is equal to the depth of the avoidance groove, and the height of the positioning pin is greater than the thickness of the supporting plate.
Preferably, according to the cutting device for the lead frame, two ends of the bottom of the supporting plate are fixedly connected with the guide posts, the guide posts penetrate through the lower die holder, a limiting plate is connected between the two guide posts, and a jacking device is arranged at the bottom of the limiting plate and used for driving the supporting plate to move up and down.
Preferably, in the cutting device for the lead frame of the present utility model, an elastic guide post is disposed between the upper die holder and the lower die holder.
Preferably, in the cutting device for the lead frame, feeding guide rails are arranged on two sides of the lower die base, and the feeding guide rails are used for guiding products to enter and discharge from a blanking station of the lower die base.
Preferably, in the cutting device for the lead frame of the present utility model, a 匚 -shaped support frame is fixedly arranged between the lower die holder and the die holder mounting frame bottom plate.
Preferably, in the cutting device for the lead frame of the present utility model, a blanking drawer box is slidably disposed in the inner frame of the 匚 -shaped support frame, and the blanking drawer box is communicated with the blanking die and is used for receiving the blanked product.
Preferably, in the cutting device for the lead frame, a blanking cylinder is fixedly arranged on the top plate of the die holder mounting frame, a telescopic rod of the blanking cylinder is fixedly connected with the blanking upper die, and the blanking cylinder is used for driving a punch to cut products downwards.
The beneficial effects of the utility model are as follows:
(1) According to the utility model, the positioning component is arranged, so that the product to be cut on the feeding guide rail is received before cutting operation, and the product to be cut is positioned and clamped on the positioning pin by the descending of the supporting plate, so that the dimensional error of the blanked product is reduced;
(2) The product to be cut automatically ejects upwards by the supporting plate after the cutting operation, so that the blanking is convenient;
(3) The punch and the blanking die are detachably arranged, and when the size of a cut product changes, only the punch and the blanking die are required to be replaced, so that the applicability of the device is improved.
Drawings
The technical scheme of the application is further described below with reference to the accompanying drawings and examples.
FIG. 1 is a three-dimensional schematic of the overall structure of an embodiment of the application;
FIG. 2 is a schematic front view of the overall structure of an embodiment of the present application;
FIG. 3 is a three-dimensional schematic diagram of an upward ejection state of a lower die holder supporting plate according to an embodiment of the application;
FIG. 4 is a three-dimensional schematic view showing a sinking and positioning state of a lower die holder supporting plate according to an embodiment of the application;
Fig. 5 is a front view schematically illustrating a sinking positioning state of a lower die holder plate according to an embodiment of the present application.
The reference numerals in the figures are:
Blanking an upper die 10;
an upper die holder 11;
a punch 12;
a blanking cylinder 13;
A die holder mount 20;
a lower die holder 21;
A clearance groove 211;
A positioning pin 212;
a blanking die 22;
a positioning assembly 23;
A pallet 231;
a guide post 232;
a limit plate 233;
an elastic guide post 24;
A feed rail 25;
匚 -shaped support brackets 26;
A blanking drawer box 27.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art in a specific case.
The technical scheme of the present application will be described in detail below with reference to the accompanying drawings in combination with embodiments.
Examples
The present embodiment provides a cutting device for a lead frame, referring to fig. 1 to 5, the structure of which includes:
The die holder mounting frame 20, die holder mounting frame 20 includes roof and the bottom plate that the level set up, through support column fixed connection between roof and the bottom plate, be provided with blanking upper die 10 along Z axle direction activity on die holder mounting frame 20's the roof, blanking upper die 10 includes upper die base 11 and drift 12, drift 12 passes through bolt detachable and connects on upper die base 11, fixed blanking cylinder 13 that is provided with on die holder mounting frame 20's the roof, blanking cylinder 13's telescopic link and blanking upper die 10 fixed connection, blanking cylinder 13 are used for driving drift 12 downstream and cut the product.
In this embodiment, the knife edge surface of the lower end of the punch 12 is rectangular, and the dimension is set according to the size of the lead frame.
Preferably, in the cutting device for a lead frame of this embodiment, a die holder 21 is disposed on a bottom plate of a die holder mounting frame 20, a die mounting groove is disposed on the die holder 21, a blanking die 22 is detachably mounted in the die mounting groove through a positioning locking block, and when the size of the lead frame to be cut is changed, only the punch 12 with a corresponding size and the matched blanking die 22 need to be replaced.
Preferably, in the cutting device for a lead frame of this embodiment, an elastic guide post 24 is disposed between the upper die holder 11 and the lower die holder 21, the elastic guide post 24 includes a guide post that is floatingly disposed, and a spring is sleeved on the guide post, so that when the punching cylinder 13 drives the punch 12 to descend, the spring is compressed to play a role of buffering and limiting, and when the punching cylinder 13 contracts, the spring is deformed to push the punching upper die 10 to ascend.
Preferably, in the cutting device for a lead frame of this embodiment, two avoidance grooves 211 are disposed on the lower die holder 21 along the X-axis direction and with openings at two ends, the two avoidance grooves 211 are respectively located at two sides of the die mounting groove, a guide side baffle overlapped with an inner wall surface of the avoidance groove 211 is disposed on one side of the avoidance groove 211 close to the elastic guide post 24, a positioning pin 212 is fixedly connected to a bottom plate of the avoidance groove 211, a positioning assembly 23 is disposed in the avoidance groove 211 in a floating manner, the positioning assembly 23 comprises a supporting plate 231, the positioning pin 212 penetrates through the supporting plate 231, the thickness of the supporting plate 231 is equal to the depth of the avoidance groove 211, the height of the positioning pin 212 is greater than the thickness of the supporting plate 231, guide posts 232 are fixedly connected to two ends of the bottom of the supporting plate 231, the guide posts 232 penetrate through the lower die holder 21, a limiting plate 233 is connected between the two guide posts 232, a jacking device is disposed at the bottom of the limiting plate 233, and is used for driving the 231 to move up and down, and the jacking device adopts a jacking cylinder.
Preferably, in the cutting device for a lead frame of this embodiment, feeding guide rails 25 are disposed on two sides of the lower die holder 21, two side plates of the feeding guide rails 25 are aligned with guiding side stops on the lower die holder 21, a bottom plate of the feeding guide rails 25 is higher than an upper working surface of the blanking die 22, and the feeding guide rails 25 are used for guiding products to enter and discharge from a blanking station of the lower die holder 21.
When the die is in actual work, the switch is pressed, the lifting cylinder fully extends out, the lifting supporting plate 231 is lifted to the upper surface of the supporting plate 231 and is not lower than the upper end part of the positioning pin 212, the lead frame to be punched is pushed to enter the punching station of the lower die holder 21 along the feeding guide rail 25 to be abutted on the baffle plate at the rear side of the lower die holder 21, the positioning pin 212 is inserted into the positioning hole of the lead frame to be punched, positioning of the lead frame to be punched is realized, and the precision of punched products is ensured; the switch is pressed down again, the jacking air cylinder is completely contracted, the supporting plate 231 is downward contacted with the bottom plate of the avoidance groove 211, at the moment, the upper surface of the supporting plate 231 is flush with the upper working surface of the blanking die 22, the punching air cylinder 13 stretches out to drive the punch 12 to downward cut a product, after cutting is completed, the switch is pressed, the jacking air cylinder is completely stretched out to push the supporting plate 231 to push out the blanked leftover materials to be separated from the positioning pins, and the leftover materials can be conveniently taken out.
Preferably, in the cutting device for a lead frame of this embodiment, a 匚 -shaped support frame 26 is fixedly arranged between the lower die holder 21 and the bottom plate of the die holder mounting frame 20, and a blanking drawer box 27 is slidably arranged in an inner frame of the 匚 -shaped support frame 26, and the blanking drawer box 27 is communicated with the blanking die 22 and is used for receiving a blanked product.
With the above-described preferred embodiments according to the present application as a teaching, the worker skilled in the art could make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of claims.
Claims (10)
1. A cutting device for a lead frame, comprising:
The die holder comprises a die holder mounting frame (20), wherein a blanking upper die (10) is movably arranged on a top plate of the die holder mounting frame (20) along the Z-axis direction, the blanking upper die (10) comprises an upper die holder (11) and a punch (12), and the punch (12) is detachably connected to the upper die holder (11);
A lower die holder (21) is arranged on the bottom plate of the die holder mounting frame (20), and a blanking die (22) is detachably arranged on the lower die holder (21);
The lower die holder (21) is provided with a floating positioning component (23), and the positioning component (23) is used for positioning products during feeding and ejecting the products during discharging.
2. The cutting device for the lead frame according to claim 1, wherein a clearance groove (211) is formed in the lower die holder (21), and a positioning pin (212) is fixedly connected to a bottom plate of the clearance groove (211).
3. A cutting device for lead frames according to claim 2, characterized in that a positioning assembly (23) is arranged in the clearance groove (211) in a floating manner, the positioning assembly (23) comprises a supporting plate (231), and the positioning pin (212) penetrates through the supporting plate (231).
4. A cutting device for lead frames according to claim 3, characterized in that the thickness of the carrier (231) is equal to the depth of the clearance groove (211), and the height of the positioning pin (212) is greater than the thickness of the carrier (231).
5. The cutting device for the lead frame according to claim 4, wherein guide posts (232) are fixedly connected to two ends of the bottom of the supporting plate (231), the guide posts (232) penetrate through the lower die holder (21), a limiting plate (233) is connected between the two guide posts (232), and a jacking device is arranged at the bottom of the limiting plate (233) and used for driving the supporting plate (231) to move up and down.
6. A cutting device for lead frames according to any one of claims 1-5, characterized in that between the upper die holder (11) and the lower die holder (21) there is provided an elastic guide post (24).
7. A cutting device for lead frames according to claim 6, characterized in that the die holder (21) is provided with feed rails (25) on both sides, which feed rails (25) are used for guiding the product into and from the blanking station of the die holder (21).
8. The cutting device for lead frames according to claim 7, characterized in that a 匚 -shaped supporting frame (26) is fixedly arranged between the lower die holder (21) and the bottom plate of the die holder mounting frame (20).
9. A cutting device for lead frames according to claim 8, characterized in that a blanking drawer (27) is slidably arranged in the inner frame of the 匚 -shaped support frame (26), which blanking drawer (27) communicates with the blanking die (22) for receiving the blanked product.
10. The cutting device for lead frames according to any one of claims 1, 7, 8 and 9, characterized in that a blanking cylinder (13) is fixedly arranged on a top plate of the die holder mounting frame (20), a telescopic rod of the blanking cylinder (13) is fixedly connected with the upper blanking die (10), and the blanking cylinder (13) is used for driving a punch (12) to cut products downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407320.6U CN220880145U (en) | 2023-09-06 | 2023-09-06 | Cutting device for lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407320.6U CN220880145U (en) | 2023-09-06 | 2023-09-06 | Cutting device for lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220880145U true CN220880145U (en) | 2024-05-03 |
Family
ID=90873202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322407320.6U Active CN220880145U (en) | 2023-09-06 | 2023-09-06 | Cutting device for lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220880145U (en) |
-
2023
- 2023-09-06 CN CN202322407320.6U patent/CN220880145U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |