CN210830046U - Hot stamping forming's product locating pin - Google Patents

Hot stamping forming's product locating pin Download PDF

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Publication number
CN210830046U
CN210830046U CN201921670943.XU CN201921670943U CN210830046U CN 210830046 U CN210830046 U CN 210830046U CN 201921670943 U CN201921670943 U CN 201921670943U CN 210830046 U CN210830046 U CN 210830046U
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CN
China
Prior art keywords
pin
cylindrical pin
positioning pin
conical head
cutting
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Active
Application number
CN201921670943.XU
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Chinese (zh)
Inventor
邵琦
方强
袁琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Light Boat Automobile Lightweight Technology Co Ltd
Original Assignee
Sichuan Light Boat Automobile Lightweight Technology Co Ltd
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Publication date
Application filed by Sichuan Light Boat Automobile Lightweight Technology Co Ltd filed Critical Sichuan Light Boat Automobile Lightweight Technology Co Ltd
Priority to CN201921670943.XU priority Critical patent/CN210830046U/en
Application granted granted Critical
Publication of CN210830046U publication Critical patent/CN210830046U/en
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Abstract

The utility model relates to a hot stamping forming's product locating pin, including the cylinder pin pole, the upper end of cylinder pin pole is equipped with the direction conical head, and the lower extreme of cylinder pin pole is equipped with the screw thread section, be circular arc transition portion between direction conical head and the cylinder pin pole, the upper segment symmetry of cylinder pin pole is equipped with two portions of cutting level, the local conic section of axial extension to direction conical head is played from cylinder pin pole local global to the portion of cutting level, the cutting level of cutting level is 1mm apart from the global degree of depth of cylinder pin pole, the axial length of cutting level is 15 ~ 25 mm.

Description

Hot stamping forming's product locating pin
Technical Field
The utility model relates to a round pin, in particular to hot stamping forming's product locating pin.
Background
The hot stamping forming is a special processing method for processing plates into products with various shapes, and along with the development of industrial modernization, products processed by the hot stamping forming method are more and more due to more advantages of the hot stamping forming method. In the use process of the hot stamping forming die, the upper die insert and the lower die insert move relatively to extrude a plate, so that the plate is deformed, and the plate is changed into various shapes. In the course of working, need set up the locating pin between lower mould insert and panel usually, this locating pin uses the mesopore of lower mould insert as the location benchmark, fixes a position panel through this locating pin, prevents that panel from taking place to slide in extrusion process and influencing the shaping effect, because go up the position precision between mould insert and the lower mould insert when the extrusion, is vital to the shaping effect, consequently at the assembly debugging in-process of last mould, lower mould, can often dismouting this locating pin. At present, the locating pin on the market is cylindrical, and a special round hole wrench must be used for dismounting the locating pin during dismounting, and if the round hole wrench is lost, the positions of the upper die and the lower die cannot be debugged, so that the dismounting is very inconvenient.
Disclosure of Invention
The utility model aims at the not enough of prior art, provide a hot stamping forming's product locating pin, its dismantlement that makes the locating pin is more convenient, high-efficient, provides work efficiency.
The technical scheme of the utility model is that: the utility model provides a hot stamping forming's product locating pin, includes the cylinder pin pole, the upper end of cylinder pin pole is equipped with the direction awl head, and the lower extreme of cylinder pin pole is equipped with the screw thread section, be circular arc transition portion between direction awl head and the cylinder pin pole, the upper segment symmetry of cylinder pin pole is equipped with two sections of cutting level, the local conic section of axial extension to direction awl head is played from cylinder pin pole local global to the section of cutting level, the section of cutting level is 1mm apart from the global degree of depth of cylinder pin pole, the axial length of cutting level is 15 ~ 25 mm.
The distance between the upper end of the flat cutting part and the top of the guide conical head is at least 14 mm.
The lower end of the thread section is provided with a starting opening.
And a through hole is formed in the straight column section of the cylindrical pin rod.
The lower part of the cylindrical pin rod is provided with a limiting step, the limiting step is positioned above the thread section, and a tapered transition section is arranged between the limiting step and the straight column section of the cylindrical pin rod.
Adopt above-mentioned technical scheme: the guide conical head arranged at the upper end of the cylindrical pin rod can play a role in guiding the positioning pin. The cutting flat part extends to the local conical section of the guide conical head from the local peripheral surface of the cylindrical pin rod in the axial direction, the depth of the cutting flat surface of the cutting flat part from the peripheral surface of the cylindrical pin rod is 1mm, and the cutting thickness of the cutting flat surface is very small, so that the two cutting flat parts cannot influence the strength of the positioning pin, and the positioning pin is not easy to break in the assembling and disassembling process. The axial length of the flat cutting part is 15-25 mm, the length of the flat cutting part in the range can ensure that small pliers and large pliers can clamp the flat cutting surface of the flat cutting part, so that the universality of the positioning pin is better, and the positioning pin is convenient to detach and install. When the positioning pin is disassembled, the cutting planes of the two cutting planes are clamped by using common pliers, the positioning pin can be disassembled by rotating the positioning pin through the pliers, and a special round hole wrench is not required to be prepared for disassembling; when the positioning pin is installed, the cutting planes of the two cutting planes can be clamped by using conventional pliers, and the positioning pin is screwed into the lower die through the pliers. The upper die and the lower die during hot stamping and molding and product positioning become more simple, convenient and efficient through the positioning pin, and the working efficiency of workers can be greatly improved.
The distance between the upper end of the flat cutting part and the top of the guide conical head is at least 14mm, so that the guide conical head is provided with a guide conical surface, and the guide conical head can play a guide role.
The lower end of the threaded section is provided with a starting opening, and if the positioning pin is broken off, the positioning pin can be detached from the lower die through the starting opening at the lower end of the threaded section by a screwdriver when the positioning pin cannot be detached by using pliers.
The straight column section of the cylindrical pin rod is provided with a through hole, when no pliers are arranged on site, a cross rod can penetrate through the through hole, and the cross rod applies torque to the positioning pin to disassemble the positioning pin.
The lower part of the cylindrical pin rod is provided with a limiting step, the limiting step is positioned above the thread section, a taper transition section is arranged between the limiting step and the straight column section of the cylindrical pin rod, the limiting step can limit when a positioning pin is installed, the positioning pin can be installed in place, and the taper transition section can be matched with a flanging hole in a plate, so that the positioning is more accurate.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of FIG. 1 taken along line A;
fig. 3 is a schematic view of fig. 1 in the direction B.
In the attached drawing, 1 is a cylindrical pin rod, 1-1 is a flat cutting part, 1-2 is a through hole, 1-3 is a limiting step, 1-4 is a conical transition section, 2 is a guiding conical head, 3 is a thread section, 3-1 is an opening, and 4 is an arc transition part.
Detailed Description
Referring to fig. 1 to 3, a hot stamping formed product positioning pin comprises a cylindrical pin rod 1, wherein a guide conical head 2 is arranged at the upper end of the cylindrical pin rod 1, and when the positioning pin is installed, the guide conical head 2 can play a role in guiding, so that the positioning pin can be installed conveniently. The lower end of the cylindrical pin rod 1 is provided with a threaded section 3, the positioning pin is in threaded fit connection with the lower die through the threaded section 3, the lower end of the threaded section 3 is provided with a starting opening 3-1, when the positioning pin is broken, the positioning pin can be detached through the starting opening 3-1 at the lower end of the threaded section 3 by a screwdriver, and the influence on the use of the lower die due to the breakage of the positioning pin in the lower die is avoided. And an arc transition part 4 is arranged between the guide conical head 2 and the cylindrical pin rod 1. The upper section of the cylindrical pin rod 1 is symmetrically provided with two flat cutting parts 1-1, and the flat cutting parts 1-1 axially extend to a local conical section of the guide conical head 2 from the local circumferential surface of the cylindrical pin rod 1. The depth of the cutting plane of the flat cutting part 1-1 from the peripheral surface of the cylindrical pin rod 1 is 1mm, and the cutting thickness of the two flat cutting parts 1-1 is very small, so that the two flat cutting parts 1-1 cannot influence the positioning strength and are not easy to break off in the dismounting process. The axial length of the flat cutting part 1-1 is 15-25 mm, and the length of the flat cutting part 1-1 in the range can ensure that small pliers and large pliers can be clamped on the flat cutting surface of the flat cutting part 1-1, so that the positioning pin can be disassembled and assembled by the pliers with different sizes, the universality of the positioning pin is better, and the disassembly and the assembly of the positioning pin are convenient. The distance between the upper end of the flat cutting part 1-1 and the top of the guide conical head 2 is at least 14mm, so that the guide conical head 2 is provided with an enough guide conical surface, the guide conical head 2 can play a guide role, and the installation of the positioning pin is facilitated. The straight column section of the cylindrical pin rod 1 is provided with a through hole 1-2, when no pliers are arranged on site, a cross rod can penetrate through the through hole 1-2, and the cross rod applies torque to the positioning pin to disassemble or assemble the positioning pin. The lower part of the cylindrical pin rod 1 is provided with a limiting step 1-3, the limiting step 1-3 is positioned above the thread section 3, a taper transition section 1-4 is arranged between the limiting step 1-3 and the straight column section of the cylindrical pin rod 1, the limiting step 1-3 can limit during installation of the positioning pin, the positioning pin can be installed in place, the positioning accuracy is guaranteed, in addition, the taper transition section 1-4 between the limiting step 1-3 and the cylindrical pin rod 1 can be matched with a flanging hole in a plate, the positioning is more accurate, the positioning pin can also be suitable for the plate with the flanging hole, and the application range of the positioning pin is expanded.
The utility model discloses an embodiment, when the diameter of cylindrical pin pole 1 was 12mm, the depth that the tangent plane of truncation portion 1-1 was apart from cylindrical pin pole 1 global was 1mm, the distance of the upper end of truncation portion 1-1 apart from the top of direction conical head 2 was 14mm, the width that will truncate portion 1-1 was the best when 6.63mm, according to the diameter difference of cylindrical pin pole 1, the width of truncation portion 1-1 can be along with changing equally, the width of truncation portion 1-1 should not be less than 1/2 of cylindrical pin pole 1 diameter usually, can further guarantee like this that the hand vice firmly cliies truncation portion 1-1, more difficult slippage when dismantling the locating pin with the hand vice.
When the utility model is used, the common pliers are only used to clamp the cutting planes of the two cutting flat parts 1-1 during disassembly, and the positioning pin is rotated by the pliers to disassemble without preparing a special round hole wrench for disassembly; when the positioning pin is installed, the cutting planes of the two cutting flat parts 1-1 are clamped by using conventional pliers, the positioning pin is screwed into the lower die through the pliers, the positioning pin is limited by the limiting steps 1-3, and the installation and disassembly operations are very simple and convenient. In addition, the lower end of the threaded section 3 of the positioning pin is also provided with an opening 3-1, and the cylindrical pin rod 1 is provided with a through hole 1-2, so that the positioning pin is quite comprehensive in design considering that the positioning pin cannot be disassembled by using a hand wrench or the positioning pin is broken. Therefore, the positioning pin enables the positioning of the hot stamping formed product to be simpler, more convenient and more efficient, can greatly improve the working efficiency of workers, and can also accelerate the debugging speed of the upper die and the lower die.

Claims (5)

1. The utility model provides a hot stamping forming's product locating pin, includes cylindrical pin pole (1), the upper end of cylindrical pin pole (1) is equipped with direction conical head (2), and the lower extreme of cylindrical pin pole (1) is equipped with screw thread section (3), be circular arc transition portion (4), its characterized in that between direction conical head (2) and cylindrical pin pole (1): the cylindrical pin rod is characterized in that two flattening portions (1-1) are symmetrically arranged at the upper section of the cylindrical pin rod (1), the flattening portions (1-1) axially extend to a local conical section of the guide conical head (2) from the local peripheral surface of the cylindrical pin rod (1), the depth of the flattening surfaces of the flattening portions (1-1) from the peripheral surface of the cylindrical pin rod (1) is 1mm, and the axial length of the flattening portions (1-1) is 15-25 mm.
2. The positioning pin for a hot-stamped product according to claim 1, wherein: the distance between the upper end of the flat cutting part (1-1) and the top of the guide conical head (2) is at least 14 mm.
3. The positioning pin for a hot-stamped product according to claim 1, wherein: the lower end of the thread section (3) is provided with a starting opening (3-1).
4. The positioning pin for a hot-stamped product according to claim 1, wherein: the straight column section of the cylindrical pin rod (1) is provided with a through hole (1-2).
5. The positioning pin for a hot-stamped product according to claim 1, wherein: the lower part of the cylindrical pin rod (1) is provided with a limiting step (1-3), the limiting step (1-3) is positioned above the thread section (3), and a conical transition section (1-4) is arranged between the limiting step (1-3) and the straight column section of the cylindrical pin rod (1).
CN201921670943.XU 2019-10-08 2019-10-08 Hot stamping forming's product locating pin Active CN210830046U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921670943.XU CN210830046U (en) 2019-10-08 2019-10-08 Hot stamping forming's product locating pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921670943.XU CN210830046U (en) 2019-10-08 2019-10-08 Hot stamping forming's product locating pin

Publications (1)

Publication Number Publication Date
CN210830046U true CN210830046U (en) 2020-06-23

Family

ID=71254369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921670943.XU Active CN210830046U (en) 2019-10-08 2019-10-08 Hot stamping forming's product locating pin

Country Status (1)

Country Link
CN (1) CN210830046U (en)

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