CN216441476U - Initial positioning mechanism and cutting die - Google Patents
Initial positioning mechanism and cutting die Download PDFInfo
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- CN216441476U CN216441476U CN202123091855.4U CN202123091855U CN216441476U CN 216441476 U CN216441476 U CN 216441476U CN 202123091855 U CN202123091855 U CN 202123091855U CN 216441476 U CN216441476 U CN 216441476U
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- 238000005520 cutting process Methods 0.000 title claims description 27
- 238000004080 punching Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides an initial positioning mechanism and a cutting-off die, wherein the initial positioning mechanism comprises an initial positioning base and an initial positioning shaft, the initial positioning base is provided with a through hole, a first through hole and a second through hole which are communicated with each other, the through hole extends towards the interior of the initial positioning base from a working surface of the initial positioning base, the first through hole and the second through hole both extend towards the interior of the initial positioning base from the side wall of the initial positioning base, the first ends of the first through hole and the second through hole are intersected to form a preset included angle, the second end of the first through hole and the second end of the second through hole have a height difference in the axial direction of the through hole, and a bearing part is arranged in the first through hole; the end part of one end of the initial positioning shaft is provided with an initial positioning needle, the middle part of the initial positioning shaft is connected with a cross rod, the initial positioning shaft is movably inserted in the through hole and can move along the axial direction of the through hole, the initial positioning needle protrudes out of the working surface, the cross rod is arranged on the bearing part, and the cross rod can move between the first through hole and the second through hole. The utility model can realize the function of pre-positioning the material belt.
Description
Technical Field
The utility model relates to the field of punching dies, in particular to an initial positioning mechanism of a lead frame and a cutting die.
Background
The electroplated lead frame is generally collected in a roll mode, and is subsequently required to be cut into a sheet structure required by a customer through a cutting die. The existing cutting die generally only positions the lead frame when punching, so that the punching positioning pins are generally arranged on the upper die in order to facilitate the movement of the material belt, the lower die is provided with punching positioning holes corresponding to the positioning pins, and the material belt is arranged on the lower die. When the die is assembled, the positioning needle penetrates through a preset positioning hole in the material belt and is inserted into the punching positioning hole, so that punching positioning of the material belt is realized. Because the existing cutting die has no initial positioning, the material belt is difficult to be accurately positioned to the initial position of the die material channel by manpower, so that the dislocation problem of the initial position of the material belt is caused, the accuracy of the cutting position of the lead frame is influenced during subsequent punching, and the lead frame is scrapped due to damage and wastes materials.
SUMMERY OF THE UTILITY MODEL
The first purpose of the utility model is to provide an initial positioning mechanism which has simple structure and convenient operation.
A second object of the present invention is to provide a cutting die including the above-described initial positioning mechanism.
In order to achieve the first object, the utility model provides an initial positioning mechanism, which comprises an initial positioning base and an initial positioning shaft, wherein the initial positioning base is provided with a through hole, a first through hole and a second through hole, the through hole extends from the working surface of the initial positioning base to the interior of the initial positioning base, the first through hole and the second through hole both extend from the side wall of the initial positioning base to the interior of the initial positioning base, the through hole is respectively communicated with the first through hole and the second through hole, the first ends of the first through hole and the second through hole are intersected and communicated, in the axial direction of the through hole, the second end of the first through hole and the second end of the second through hole have a height difference, and a bearing part is arranged in the first through hole; the initial positioning shaft is movably inserted into the through hole and can move along the axial direction of the through hole, the initial positioning needle protrudes out of the working surface, the cross rod is arranged on the bearing part, and the cross rod can move between the first through hole and the second through hole.
According to the scheme, the initial positioning shaft is arranged in the through hole, the cross rod is arranged in the first through hole or the second through hole, the initial positioning pin on the initial positioning shaft is controlled to protrude out of a working surface or retract into the through hole by utilizing the height difference between the first through hole and the second through hole, and when the initial positioning pin protrudes out of the working surface, the initial positioning pin is matched and connected with the positioning hole of the lead frame, so that the initial positioning of the lead frame is realized, and the lead frame can accurately reach the initial position conveniently; when the initial positioning needle retracts to perforate, the lead frame can automatically move forwards at equal intervals under the action of the conveying mechanism of the die, so that the lead frame can accurately reach the punching position, and the follow-up accurate lead frame cutting is facilitated.
The further scheme is that on the side projection face of the initial positioning base, the first end of the first through hole falls in the through hole, the second end of the first through hole falls outside the through hole, and the two ends of the second through hole fall in the through hole and are positioned on one side, far away from the working face, of the first through hole.
The further scheme is that the first through hole and the second through hole are intersected into a right angle, the length direction of the first through hole is parallel to the working surface, the length direction of the second through hole is parallel to the axial direction of the through hole, and the bearing part is arranged on the hole wall of the first through hole.
The further scheme is that the clearance between the initial positioning shaft and the through hole is 0.02mm, the diameter of the initial positioning needle is smaller than that of the initial positioning shaft, and a chamfer is arranged at the free end of the initial positioning needle.
The further scheme is that a threaded hole is formed in the middle of the initial positioning shaft, the threaded hole radially penetrates through the middle of the initial positioning shaft along the initial positioning shaft, the connecting end of the cross rod is provided with threads, the connecting end of the cross rod is in threaded connection with the threaded hole, and the free end of the cross rod penetrates out of the side wall of the initial positioning base.
In order to achieve the second object, the utility model provides a cutting die, which comprises a lower die, an upper die and the initial positioning mechanism, wherein the lower die and the upper die are arranged in a vertically corresponding manner, the lower die is provided with a material channel, a cutting punch is arranged between the lower die and the upper die, the initial positioning mechanism is arranged on the lower die, and the cutting punch and the initial positioning mechanism are respectively arranged at two ends of the material channel.
Drawings
Fig. 1 is a top view of an initial positioning mechanism and a tape in an embodiment of the utility model.
FIG. 2 is a side view of an initial positioning base in an embodiment of the utility model.
FIG. 3 is an exploded view of an initial positioning shaft and cross bar in an embodiment of the present invention.
Fig. 4 is a structural view of the initial positioning mechanism in the positioning operation state in the embodiment of the present invention.
Fig. 5 is a structural view of the initial positioning mechanism in a non-positioning operating state in the embodiment of the present invention.
FIG. 6 is a top view of an embodiment of the present invention in combination with a lower die.
The utility model is further explained with reference to the drawings and the embodiments.
Detailed Description
Referring to fig. 1 to 5, the initial positioning mechanism provided in this embodiment includes an initial positioning base 1 and an initial positioning shaft 2.
The initial positioning base 1 is designed to be in a strip shape, the material belt 3 is horizontally placed in the middle of the initial positioning base 1, and the extending direction of the material belt 3 is perpendicular to the length direction of the initial positioning base 1. The middle part of the initial positioning base 1 is provided with a plurality of grooves 11, and the grooves 11 are recessed from the working surface 16 of the initial positioning base 1 to the inside thereof, so as to reduce the contact area between the strip 3 and the working surface 16. The bottom of each of the two ends of the initial positioning base 1 in the length direction is provided with a mounting hole 12, and the initial positioning base 1 is fixedly connected with a cutting die through a connecting piece inserted in the mounting holes 12.
The initial positioning base 1 is provided with a through hole 13, a first through hole 14 and a second through hole 15, and the through hole 13 is communicated with the first through hole 14 and the second through hole 15. The through hole 13 extends from the working surface 16 of the initial positioning base 1 to the inside thereof and penetrates the height direction of the initial positioning base 1. The first through hole 14 and the second through hole 15 both extend from the side wall of the initial positioning base 1 to the inside thereof, and the extending directions of the first through hole 14 and the second through hole 15 are both perpendicular to the height direction of the initial positioning base 1. The first ends of the first through hole 14 and the second through hole 15 are intersected to form a preset included angle, in the axial direction of the through hole 13, the second end of the first through hole 14 and the second end of the second through hole 15 have a height difference, a bearing part 141 is arranged in the first through hole 14, and the bearing part 141 is parallel to the working surface 16.
The cross section of the initial positioning shaft 2 and the cross section of the through hole 13 are both set to be circular. An initial positioning pin 21 is arranged on one end of the initial positioning shaft 2, the initial positioning pin 21 is coaxially arranged with the initial positioning shaft 2, and the height of the initial positioning pin 21 is smaller than or equal to the height difference between the second end of the first through hole 14 and the second end of the second through hole 15. The middle part of the initial positioning shaft 2 is connected with a cross bar 22, and the extending direction of the cross bar 22 is perpendicular to the extending direction of the initial positioning shaft 2. The initial positioning shaft 2 is movably inserted in the through hole 13, the initial positioning shaft 2 can move along the axial direction of the through hole 13, and meanwhile, the initial positioning shaft 2 can rotate around the axial direction of the initial positioning shaft 2 relative to the through hole 13. The cross bar 22 is disposed in the first through hole 14 or the second through hole 15, and the cross bar 22 can move back and forth between the first through hole 14 and the second through hole 15. When the cross bar 22 is located in the first through hole 14 and supported on the supporting portion 141, the initial positioning pin 21 protrudes from the working surface 16 for being connected with the positioning hole 31 on the side of the tape 3 in a matching manner; when the cross bar 22 is positioned in the second through hole 15, the initial positioning pin 21 is completely retracted into the through hole 13, facilitating the movement of the strip of material 3 on the work surface 16.
The first through hole 14 and the second through hole 15 form an L-shaped through hole, namely, the first through hole 14 and the second through hole 15 intersect at a right angle, the length direction of the first through hole 14 is parallel to the working surface 16, and the length direction of the second through hole 15 is parallel to the axial direction of the through hole 13. On the side projection surface of the initial positioning base 1, a first end of a first through hole 14 in the length direction falls in the through hole 13, a second end of the first through hole 14 in the length direction falls outside the through hole 13, a first end of a second through hole 15 in the length direction is communicated with the first through hole 14, and the second through hole 15 completely falls in the through hole 13 and is positioned on one side, far away from the working surface 16, of the first through hole 14.
The supporting portion 141 is disposed on the hole wall of the first through hole 14, in this embodiment, the supporting portion 141 is a plane, which facilitates the movement of the cross bar 22 into and out of the supporting portion 141. In other embodiments, the supporting portion 141 is a plane, and a protrusion (not shown) may be disposed on a side of the supporting portion 141 close to the second through hole 15, the protrusion protrudes from the surface of the supporting portion 141 toward the working surface 16, and a sufficient distance is provided between a top surface of the protrusion and the through hole of the first through hole 14, so that the cross bar 22 can smoothly pass through the protrusion and then fall on the supporting portion 141, and the cross bar 22 cannot easily fall off the supporting portion 141 due to the limitation of the protrusion.
The initial positioning shaft 2 is in clearance fit with the through hole 13, and preferably, the clearance between the initial positioning shaft 2 and the through hole 13 is 0.02mm, which is beneficial to ensuring the position accuracy of the initial positioning needle 21. The diameter of the initial positioning needle 21 is smaller than that of the initial positioning shaft 2, and the free end of the initial positioning needle 21 is provided with a chamfer, so that the initial positioning needle 21 can be conveniently and quickly guided into the positioning hole 31 of the material belt 3.
The middle part of the initial positioning shaft 2 is provided with a threaded hole 23, and the threaded hole 23 radially penetrates through the middle part of the initial positioning shaft 2 along the initial positioning shaft 2. The connecting end of the cross rod 22 is provided with threads, the connecting end of the cross rod 22 is in threaded connection with the threaded hole 23, and the free end of the cross rod 22 penetrates out of the side wall of the initial positioning base 1, so that a worker can conveniently and manually operate the cross rod 22.
Referring to fig. 6, the present embodiment further provides a cutting mold, which includes a lower mold 4, an upper mold (not shown in the drawings), and an initial positioning mechanism in the above embodiment, the lower mold 4 and the upper mold are disposed up and down correspondingly, the lower mold 4 is provided with a material channel 41, the initial positioning mechanism is disposed on the lower mold 4 and located at one end of the material channel 41, and the material strip 3 can move rightward along the extending direction of the material channel 41. And a cutting punch 5 for cutting the material belt 3 is arranged between the lower die 4 and the upper die, and the cutting punch 5 and the initial positioning mechanism are respectively positioned at two ends of the material channel 41 in the extending direction of the material channel 41. The initial positioning mechanism is used for initially positioning the material belt 3 when the material belt 3 enters the die for the first time so as to improve the position precision of the material belt 3 during the subsequent cutting operation. Because the cutting operation of the material belt 3 is continuous, after the first cutting, the material belt 3 is conveyed rightwards at equal intervals by a conveying mechanism (not shown in the figure) arranged on the die, and the cutting operation is carried out once under the matching of a cutting positioning needle and a positioning hole 31 on the side edge of the material belt 3 until the whole material belt 3 is cut into a sheet structure; then, the cutting operation of the next web 3 is cyclically performed.
In summary, the initial positioning shaft is arranged in the through hole, the cross rod is arranged in the first through hole or the second through hole, the height difference between the first through hole and the second through hole is utilized to control the initial positioning pin on the initial positioning shaft to protrude out of the working surface or retract into the through hole, and when the initial positioning pin protrudes out of the working surface, the initial positioning pin is matched and connected with the positioning hole of the lead frame, so that the initial positioning of the lead frame is realized, and the lead frame can accurately reach the initial position; when the initial positioning needle retracts to perforate, the lead frame can automatically move forwards at equal intervals under the action of the conveying mechanism of the die, so that the lead frame can accurately reach the punching position, and the follow-up accurate cutting of the lead frame is facilitated.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, not limitations, and various changes and modifications may be made by those skilled in the art, without departing from the spirit and scope of the utility model, and any changes, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be embraced therein.
Claims (6)
1. An initial positioning mechanism, comprising:
the initial positioning base is provided with a through hole, a first through hole and a second through hole, the through hole extends from the working surface of the initial positioning base to the interior of the initial positioning base, the first through hole and the second through hole both extend from the side wall of the initial positioning base to the interior of the initial positioning base, the through hole is respectively communicated with the first through hole and the second through hole, the first ends of the first through hole and the second through hole are intersected and communicated, the second end of the first through hole and the second end of the second through hole have a height difference in the axial direction of the through hole, and a bearing part is arranged in the first through hole;
the initial positioning device comprises an initial positioning shaft, wherein an initial positioning needle is arranged at one end of the initial positioning shaft, the initial positioning needle and the initial positioning shaft are coaxially arranged, a cross rod is connected to the middle of the initial positioning shaft, the initial positioning shaft is movably inserted into the through hole and can axially move along the through hole, the initial positioning needle protrudes out of the working surface, the cross rod is arranged on the bearing part, and the cross rod can move between the first through hole and the second through hole.
2. The initial positioning mechanism of claim 1, wherein:
on the side projection surface of the initial positioning base, a first end of the first through hole is arranged in the through hole, a second end of the first through hole is arranged outside the through hole, and two ends of the second through hole are arranged in the through hole and located on one side, far away from the working surface, of the first through hole.
3. The initial positioning mechanism of claim 2, wherein:
the first through hole and the second through hole are intersected to form a right angle, the length direction of the first through hole is parallel to the working surface, the length direction of the second through hole is parallel to the axial direction of the through hole, and the bearing part is arranged on the hole wall of the first through hole.
4. The initial positioning mechanism of claim 1, wherein:
the clearance between the initial positioning shaft and the through hole is 0.02mm, the diameter of the initial positioning needle is smaller than that of the initial positioning shaft, and a chamfer is arranged at the free end of the initial positioning needle.
5. The initial positioning mechanism of claim 1, wherein:
the middle part of initial positioning axle is seted up threaded hole, the threaded hole is followed initial positioning axle radially runs through the middle part of initial positioning axle, the link of horizontal pole is provided with the thread, the link of horizontal pole with threaded hole threaded connection, the free end of horizontal pole is worn out outside the lateral wall of initial positioning base.
6. Cutting off mould, its characterized in that: the initial positioning mechanism comprises a lower die, an upper die and the initial positioning mechanism as claimed in any one of claims 1 to 5, wherein the lower die and the upper die are correspondingly arranged up and down, the lower die is provided with a material channel, a cutting punch is arranged between the lower die and the upper die, the initial positioning mechanism is arranged on the lower die, and the cutting punch and the initial positioning mechanism are respectively arranged at two ends of the material channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123091855.4U CN216441476U (en) | 2021-12-09 | 2021-12-09 | Initial positioning mechanism and cutting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123091855.4U CN216441476U (en) | 2021-12-09 | 2021-12-09 | Initial positioning mechanism and cutting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216441476U true CN216441476U (en) | 2022-05-06 |
Family
ID=81356222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123091855.4U Active CN216441476U (en) | 2021-12-09 | 2021-12-09 | Initial positioning mechanism and cutting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216441476U (en) |
-
2021
- 2021-12-09 CN CN202123091855.4U patent/CN216441476U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hengqin Financial Investment International Finance Leasing Co.,Ltd. Assignor: Zhuhai Quanrun Technology Co.,Ltd. Contract record no.: X2023980044678 Denomination of utility model: An initial positioning mechanism and cutting mold Granted publication date: 20220506 License type: Exclusive License Record date: 20231026 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An initial positioning mechanism and cutting mold Effective date of registration: 20231030 Granted publication date: 20220506 Pledgee: Hengqin Financial Investment International Finance Leasing Co.,Ltd. Pledgor: Zhuhai Quanrun Technology Co.,Ltd. Registration number: Y2023980063342 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |