CN210586658U - Punching and guiding stamping die for hexagon socket head cap screw - Google Patents
Punching and guiding stamping die for hexagon socket head cap screw Download PDFInfo
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- CN210586658U CN210586658U CN201920879452.XU CN201920879452U CN210586658U CN 210586658 U CN210586658 U CN 210586658U CN 201920879452 U CN201920879452 U CN 201920879452U CN 210586658 U CN210586658 U CN 210586658U
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Abstract
The utility model discloses a pan head socket head cap screw direction stamping die that punches a hole, include: a punching needle and a punching needle guide sleeve; the punching needle comprises a punch, a punching body and a punching needle positioning base, a guide punching hole is arranged in the punching needle guide sleeve, the punch needle guide sleeve comprises a punch needle guide sleeve body and a punch needle guide hole arranged in the middle of the punch needle guide sleeve body, the guide hole comprises a punch needle positioning base guide section, a punch body guide section and a pan head positioning groove, compared with the traditional structure, the utility model reduces the proportion of the punch head of the punching needle in the whole length of the punching needle, meanwhile, the punching guide sleeve is changed into an inner circle guide structure from a hexagonal guide structure, and a punching needle positioning base is arranged at the bottom of the punching needle, the guide seat is provided with a corresponding positioning function of replacing a hexagonal guide structure by the guide section of the punch needle positioning base, so that the processing difficulty and the processing cost of the pan head inner hexagon nut guide sleeve die are reduced, the yield of products is increased, and the stability and the improvement of the product quality of the pan head inner hexagon screw are realized.
Description
Technical Field
The utility model relates to a hexagon socket head cap screw's frock field especially relates to a pan head hexagon socket head screw direction stamping die that punches a hole.
Background
The hexagonal hole of the pan head hexagon socket head screw is generally formed by punching through matching of a punching needle and a punching guide die, the existing commonly used punching needle consists of a hexagon punching needle and a matched hexagonal guide sleeve, when the machining precision requirement of the screw is higher, the machining requirement on six guide surfaces of the hexagonal guide sleeve die is very high, the screw is difficult to machine, and as long as one or more guide surfaces are smaller, the punching needle cannot be inserted into the guide sleeve; as long as one side or multiaspect are eccentric partially or the hexagonal, will cause the clearance too big, hexagonal is eccentric in the product to and dash the damage of needle, hexagonal cooperation mould goes wrong also difficult inspection in addition, can discover to dash and cooperate badly between needle and the uide bushing after often will putting the computer, and the screw produces more waste product easily, and the uide bushing weares and teares easily moreover and influences life.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a tooling die, can reduce the processing degree of difficulty of mould punching press uide bushing, improves the life of uide bushing.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a pan head socket head cap screw direction stamping die that punches a hole, pan head socket head cap screw direction stamping die that punches a hole includes: a punching needle and a punching needle guide sleeve; the punching needle comprises a punch, a punching body and a punching needle positioning base, the punch and the punching needle positioning base are respectively positioned at two ends of the punching body, the cross section of the punch is a regular hexagon, the top end of the punch is a conical top, the cross section of the punching body is a circle, the diameter of the punching body cross section is the same as that of an circumscribed circle of the hexagonal cross section of the punch, the cross section of the punching needle positioning base is an equilateral polygon, the diameter of an inscribed circle of the cross section of the punching needle positioning base is larger than that of the punching body cross section, the center lines of the punch, the punching body and the punching needle positioning base are overlapped, and the length of the punch is 1/6-1/4 of the length of the; the punching needle guide sleeve comprises a punching needle guide sleeve body and a punching needle guide hole arranged in the middle of the punching needle guide sleeve body, the guide hole comprises a punching needle positioning base guide section, a punching body guide section and a pan head positioning groove, the punching needle base positioning guide section and the punching body guide section can respectively accommodate the punching needle positioning base and the punching body, the cross section of the punching needle positioning base guide section is matched with that of the punching needle positioning base, and the punching body section is matched with that of the punching body guide section.
In a preferred embodiment of the present invention, the top end of the punch pin is an obtuse-angle cone, and the included angle of the cone-shaped cross section is 120 ° -150 °.
In a preferred embodiment of the present invention, the punching pin is made of tungsten steel or high-speed steel.
In a preferred embodiment of the present invention, the length of the punching needle positioning base is 1/7-1/6 of the entire length of the punching needle.
In a preferred embodiment of the present invention, the diameter of the inscribed circle of the cross section of the guiding section of the punch pin positioning base is 1.05 to 1.1 times of the inscribed circle of the cross section of the punch pin positioning base.
In a preferred embodiment of the present invention, the cross-sectional diameter of the body-punching guide section is larger than that of the body-punching guide section, and the clearance between the body-punching guide section and the body-punching guide section is 0.03-0.05 mm.
The utility model has the advantages that: the utility model discloses a reduce the proportion of drift towards the needle in towards the whole length of needle, change the punching press uide bushing into from hexagonal guide structure simultaneously and interior circle guide structure sets up the location base towards the needle bottom simultaneously, set up corresponding location base direction section and replace the locate function of hexagonal guide structure on the guide holder, reduced the processing degree of difficulty and the processing cost of pan head hexagon nut uide bushing mould, the yield of product increases, realizes the stability and the improvement of pan head hexagon nut screw product quality.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a mold structure before modification;
the parts in the drawings are numbered as follows:
1. punching needle, 2. punching needle guide sleeve;
11. a punching needle positioning base, 12 parts of a punching body and 13 parts of a punching head;
21. a positioning base guide section, 22, a punching body guide section, 23, a pan head positioning groove.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, in one embodiment of the present invention:
the utility model provides a pan head socket head cap screw direction stamping die that punches a hole, pan head socket head cap screw direction stamping die that punches a hole includes: a punching needle 1 and a punching needle guide sleeve 2; the punching needle 1 comprises a punch 13, a punching body 12 and a punching needle positioning base 11, the punch 13 and the punching needle positioning base 11 are respectively positioned at two ends of the punching body 12, the section of the punch 13 is a regular hexagon, the top end of the punch 13 is a conical top, the section of the punching body 12 is a circle, the diameter of the section of the punching body 12 is the same as that of an external circle of the hexagonal section of the punch 13, the section of the punching needle positioning base 1 is a regular hexagon, the diameter of an internal circle of the section of the punching needle positioning base 11 is larger than that of a section circle of the punching body 12, the center lines of the punch 13, the punching body 12 and the punching needle positioning base 11 are superposed, and the length of the punch 13 is 1/6 of the length of the whole punching needle 1; the punch needle guide sleeve 2 comprises a punch needle guide sleeve 1 body and a punch needle guide hole arranged in the middle of the punch needle guide sleeve 1 body, the guide hole comprises a punch needle positioning base guide section 21, a punch body guide section 22 and a pan head positioning groove 23, the punch needle base positioning guide section and the punch body guide section can respectively accommodate the punch needle positioning base and the punch body, the cross section of the punch needle positioning base guide section 21 is matched with the cross section of the punch needle positioning base 11, and the cross section of the punch body 12 is matched with the cross section of the punch body guide section 22.
The top end of a punch 13 of the punch pin 1 is in an obtuse-angle cone shape, the included angle of the cross section of the cone is 120 degrees, invalid extrusion on the pan head of the pan head screw is reduced, and the total extrusion amount is reduced.
The punching needle 1 is made of tungsten steel and can bear the pressure impact of high-speed punching.
The length of the punch pin positioning base 11 is 1/6 of the length of the whole punch pin 1, and because the punch pin positioning base 11 bears the positioning function of the original punch pin 1, the transverse bearing capacity of cold heading stamping is insufficient due to too short length, and the punch pin positioning base is easy to rotate and damage in a guide hole.
The diameter of the inscribed circle of the cross section of the guide section 21 of the punch pin positioning base is 1.05 times of the inscribed circle of the cross section of the punch pin positioning base 11, if the difference is too large, the punch pin 1 can rotate in the guide hole when cold heading punching occurs, and the hexagon socket is inaccurate in punching positioning.
The cross section diameter of towards body guide section 22 is greater than towards body 12, it is 0.03~0.05mm to dash the body guide section 22 and towards the complex clearance between the body 12, the clearance is too big easily arouses the overflow to get into the guiding hole clearance when cold-heading in, the clearance is too little easily because mechanical motion's precision problem leads to the friction between die sleeve guiding hole and the towards needle 1, influence the whole mould life-span, only when the clearance is 0.03~0.05mm, because the speed is very fast during cold-heading, the air will be sealed in the clearance, just in time can prevent the material to get into the space. The product in actual production completely meets the standard and can achieve the expected effect.
In another embodiment of the present invention:
the utility model provides a pan head socket head cap screw direction stamping die that punches a hole, pan head socket head cap screw direction stamping die that punches a hole includes: a punching needle 1 and a punching needle guide sleeve 2; the punching needle 1 comprises a punch 13, a punching body 12 and a punching needle positioning base 11, the punch 13 and the punching needle positioning base 11 are respectively positioned at two ends of the punching body 12, the section of the punch 13 is a regular hexagon, the top end of the punch 13 is a conical top, the section of the punching body 12 is a circle, the diameter of the external circle of the section of the punching body 12, which is located at the hexagonal section of the punch 13, is the same, the section of the punching needle positioning base 1 is a square, the diameter of the internal circle of the section of the punching needle positioning base 11 is larger than that of the section circle of the punching body 12, the center lines of the punch 13, the punching body 12 and the punching needle positioning base 11 are superposed, and the length of the punch 13 is 1/4 of the length of the whole punching; the punch needle guide sleeve 2 comprises a punch needle guide sleeve 1 body and a punch needle guide hole arranged in the middle of the punch needle guide sleeve 1 body, the guide hole comprises a punch needle positioning base guide section 21, a punch body guide section 22 and a pan head positioning groove 23, the punch needle base positioning guide section and the punch body guide section can respectively accommodate the punch needle positioning base and the punch body, the cross section of the punch needle positioning base guide section 21 is matched with that of the punch needle positioning base 11, and the cross section of the punch needle punch body 12 is matched with that of the punch body guide section 22.
The top end of a punch 13 of the punch pin 1 is in an obtuse-angle conical shape, the included angle of the conical cross section is 150 degrees, the invalid extrusion on the pan head of the pan head screw is reduced, and the total extrusion amount is reduced.
The punching needle 1 is made of high-speed steel and can bear the pressure impact of high-speed punching.
The length of the punch pin positioning base 11 is 1/7 of the length of the whole punch pin 1, and because the punch pin positioning base 11 bears the positioning function of the original punch pin 1, the transverse bearing capacity of cold heading stamping is insufficient due to too short length, and the punch pin positioning base is easy to rotate and damage in a guide hole.
The diameter of the inscribed circle of the cross section of the guide section 21 of the punch pin positioning base is 1.05 times of the inscribed circle of the cross section of the punch pin positioning base 11, if the difference is too large, the punch pin 1 can rotate in the guide hole when cold heading punching occurs, and the hexagon socket is inaccurate in punching positioning.
The cross section diameter of towards body guide section 22 is greater than towards body 12, it is 0.03~0.05mm to dash the body guide section 22 and towards the complex clearance between the body 12, the clearance is too big easily arouses the overflow to get into the guiding hole clearance when cold-heading in, the clearance is too little easily because mechanical motion's precision problem leads to the friction between die sleeve guiding hole and the towards needle 1, influence the whole mould life-span, only when the clearance is 0.03~0.05mm, because the speed is very fast during cold-heading, the air will be sealed in the clearance, just in time can prevent the material to get into the space. The product in actual production completely meets the standard and can achieve the expected effect.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a pan head socket head cap screw direction stamping die that punches a hole, its characterized in that, pan head socket head cap screw direction stamping die that punches a hole includes: a punching needle and a punching needle guide sleeve;
the punching needle comprises a punch, a punching body and a punching needle positioning base, the punch and the punching needle positioning base are respectively positioned at two ends of the punching body, the cross section of the punch is in a regular hexagon, the top end of the punch is a conical top, the cross section of the punching body is in a circle, the diameter of the punching body is the same as that of an circumscribed circle of the hexagonal cross section of the punch, the cross section of the punching needle positioning base is in an equilateral polygon, the diameter of an inscribed circle of the cross section of the punching needle positioning base is larger than that of the punching body, the center lines of the punch, the punching body and the punching needle positioning base are overlapped, and the length of the punch is 1/6-1/4 of the length of the;
the punching needle guide sleeve comprises a punching needle guide sleeve body and a punching needle guide hole arranged in the middle of the punching needle guide sleeve body, the guide hole comprises a punching needle positioning base guide section, a punching body guide section and a pan head positioning groove, the punching needle base positioning guide section and the punching body guide section can respectively accommodate the punching needle positioning base and the punching body, the cross section of the punching needle positioning base guide section is matched with that of the punching needle positioning base, and the punching body section is matched with that of the punching body guide section.
2. The pan head socket head cap screw punching guide stamping die of claim 1, wherein the top end of the punch head of the punch pin is in an obtuse-angle conical shape, and the included angle of the conical cross section is 120-150 degrees.
3. The pan head socket head cap screw punching guide stamping die of claim 1, wherein the material of the punching needle is tungsten steel or high-speed steel.
4. The pan head socket head cap screw punching guide punching die of claim 1, wherein the length of the punching needle positioning base is 1/7-1/6 of the length of the whole punching needle.
5. The pan head socket head cap screw punching guide stamping die of claim 1, wherein the diameter of an inscribed circle of the cross section of the guide section of the punching needle positioning base is 1.05-1.1 times of the inscribed circle of the cross section of the punching needle positioning base.
6. The pan head socket head cap screw punching guide stamping die of claim 1, wherein the cross section diameter of the punching body guide section is larger than that of the punching body, and the fit clearance between the punching body guide section and the punching body is 0.03-0.05 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920879452.XU CN210586658U (en) | 2019-06-12 | 2019-06-12 | Punching and guiding stamping die for hexagon socket head cap screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920879452.XU CN210586658U (en) | 2019-06-12 | 2019-06-12 | Punching and guiding stamping die for hexagon socket head cap screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210586658U true CN210586658U (en) | 2020-05-22 |
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ID=70700863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920879452.XU Active CN210586658U (en) | 2019-06-12 | 2019-06-12 | Punching and guiding stamping die for hexagon socket head cap screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210586658U (en) |
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2019
- 2019-06-12 CN CN201920879452.XU patent/CN210586658U/en active Active
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