CN215033598U - Powder metallurgy die of slotted pan head screw - Google Patents

Powder metallurgy die of slotted pan head screw Download PDF

Info

Publication number
CN215033598U
CN215033598U CN202121533294.6U CN202121533294U CN215033598U CN 215033598 U CN215033598 U CN 215033598U CN 202121533294 U CN202121533294 U CN 202121533294U CN 215033598 U CN215033598 U CN 215033598U
Authority
CN
China
Prior art keywords
punch
die
powder metallurgy
pan head
head screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121533294.6U
Other languages
Chinese (zh)
Inventor
蓝楷
李宁
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.)
Shijiazhuang Jingshi New Material Technology Co ltd
Original Assignee
Shijiazhuang Jingshi New Material Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shijiazhuang Jingshi New Material Technology Co ltd filed Critical Shijiazhuang Jingshi New Material Technology Co ltd
Priority to CN202121533294.6U priority Critical patent/CN215033598U/en
Application granted granted Critical
Publication of CN215033598U publication Critical patent/CN215033598U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a powder metallurgy die of a word groove pan head screw belongs to powder metallurgy technical field, including bed die and drift mould subassembly, its characterized in that: the punch die assembly comprises an upper punch assembly and a lower punch assembly, the upper punch assembly comprises an upper punch which is matched with the powder filling cavity of the female die to form the head of the straight-line groove screw, and the lower punch assembly comprises a lower punch of which the top is positioned in the powder filling cavity and a lower second punch which is sleeved in the lower punch and is used for forming the cavity of the stud part of the screw. The utility model discloses traditional screw manufacturing process before comparing adopts this mould stamping forming can reduce production link, save material, manual work, and then reduce cost, and this mould can show and reduce the machining volume, is showing and is improving production efficiency.

Description

Powder metallurgy die of slotted pan head screw
Technical Field
The utility model belongs to the technical field of powder metallurgy, the mould that adopts when concretely relates to through powder metallurgy technique shaping pan head screw.
Background
The mold is a variety of molds and tools used for molding the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping, stretching and other methods in industrial production. Powder metallurgy is an industrial technology for preparing metal powder or metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, and then forming and sintering the raw material to prepare metal materials, composite materials and various products. The powder metallurgy technology has a series of advantages of remarkable energy saving, material saving, excellent performance, high product precision, good stability and the like, and is very suitable for mass production. When the powder metallurgy technology is adopted to form products, the design of a die is very important.
The screw and the nut are matched for use, so that the assembly limit of the screw can be reduced, the tightness can be adjusted, the axial movement of the screw is overcome, and the assembly and the disassembly of equipment are facilitated. The precision of the screw directly influences the radial runout of the nut, and for some equipment, because of complex structure and high geometric tolerance requirements, the traditional machining method cannot be adopted, and a casting or forging method is adopted, so that the precision and the dimensional stability are poor on one hand, and on the other hand, the process is complicated, time-consuming and material-consuming.
Disclosure of Invention
The to-be-solved problem of the utility model is to provide a powder metallurgy die of a word groove pan head screw, adopt two upper punches, two lower punches and bed die cooperation to use, shaping screw appearance and a word recess reduce the production link simultaneously, improve machining efficiency and precision.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a powder metallurgy die of a word groove pan head screw, includes bed die and drift mould subassembly, its characterized in that: the punch die assembly comprises an upper punch assembly and a lower punch assembly, the upper punch assembly comprises an upper punch which is matched with the powder filling cavity of the female die to form the head of the straight-line groove screw, and the lower punch assembly comprises a lower punch of which the top is positioned in the powder filling cavity and a lower second punch which is sleeved in the lower punch and is used for forming the cavity of the stud part of the screw.
Furthermore, a hole for forming a chamfer of the screw stud portion is formed at the top end portion of the lower second punch.
Furthermore, the chamfer angle of the bolt part of the screw is 40 DEG
Further, an arc-shaped bulge for forming a straight groove is arranged at the lower end part of the upper punch.
Further, the single-side assembly gap between the upper punch and the female die is 0.015-0.025 mm.
Further, the single-side assembly gap between the next punch and the female die is 0.015-0.025 mm.
Furthermore, two powder filling cavities are arranged in the female die, and each powder filling cavity is matched with one group of punch die assemblies.
Further, the female die is made of WC.
Furthermore, the material of the upper punch, the lower punch and the lower punch is DC 53.
The utility model has the advantages that: (1) compared with the traditional screw manufacturing process, the die can reduce production links, save materials and labor by adopting punch forming, so that the cost is reduced, the die can obviously reduce machining amount, and the production efficiency is obviously improved; (2) the slotted pan head screw produced by the die has the advantages of good size, surface precision and stability, uniform density and stable quality; (3) the die is simple in structure, quick and convenient to install and quick to debug.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a powder metallurgy die according to the present invention;
fig. 2 is a schematic structural diagram of a screw manufactured by adopting the utility model powder metallurgy die.
In the attached drawing, 1 part of a female die, 1-1 part of a powder filling cavity, 2 part of a first punch, 2-1 part of an arc-shaped bulge, 3 part of a second punch, 4-1 part of a hole, A represents a straight groove, B represents a head part, and C represents a stud part.
Detailed Description
Referring to fig. 1, the present invention provides a powder metallurgy die for a slotted pan head screw, which comprises a female die 1 and a punch die assembly, and is used for manufacturing the screw shown in fig. 2. The screw comprises a head part B and a stud part C, and a straight groove A is formed in the head part B. It should be noted that the screw bolt part C in the screw manufactured by the powder metallurgy die of the present invention has no screw thread and needs to be realized by post machining.
The punch die assembly described above includes an upper punch assembly and a lower punch assembly.
The upper punch assembly comprises an upper punch 2 which cooperates with the powder-filled cavity 1-1 of the female die 1 to form the head of the slotted screw. The unilateral assembly gap between the upper punch 2 and the female die 1 is 0.015-0.025 mm. The lower end part of the upper punch 2 is provided with an arc-shaped bulge 2-1 for forming a straight groove.
The lower punch assembly comprises a next punch 3 with the top positioned in the powder filling cavity 1-1 and a second lower punch 4 sleeved in the next punch 3 and used for forming a screw stud part cavity. The single-side assembly gap between the next punch 3 and the female die 1 is 0.015-0.025 mm. The single-side assembly gap between the lower second punch 4 and the lower first punch 3 is 0.01-0.015 mm. The top end of the lower punch 4 is provided with a tapered hole 4-1 for forming a screw stud chamfer (chamfer angle of 40 °).
In order to realize quick and efficient manufacturing, two powder filling cavities 1-1 are arranged in the female die 1, and each powder filling cavity 1-1 is matched with a group of punch die assemblies. The screws can be made separately in the two powder-filled cavities 1-1 and are not affected by each other.
In the above parts, the material of the female die 1 is WC, and the materials of the first punch 2, the second punch 3 and the second punch 4 are all DC 53. When the die is used specifically, the female die 1, the upper punch 2, the lower punch 3 and the lower punch 4 are all provided with a driving device for driving the female die to lift.
The female die 1, the upper punch 2, the lower punch 3 and the lower punch 4 are all provided with driving devices for driving the female die to lift.
The utility model discloses a concrete working process of mould as follows:
under the drive of a corresponding drive device, the female die 1, the next punch 3 and the lower second punch 4 respectively move upwards to designated positions, then metal powder is added into the powder filling cavity 1-1, then the previous punch 2 moves downwards to be matched with the next punch 3 and the lower second punch 4 to press screws, and after the pressing is finished, demolding is started.
The product demoulding sequence is as follows: and resetting the upper punch 2, moving the female die 1 and the lower punch 3 downwards, and removing the screw from the die cavity to finish demoulding.
After demolding is finished, the finished screw is obtained through the working procedures of sintering, deburring, machining and the like.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (9)

1. The utility model provides a powder metallurgy die of a word groove pan head screw, includes bed die (1) and drift mould subassembly, its characterized in that: the punch die assembly comprises an upper punch assembly and a lower punch assembly, the upper punch assembly comprises an upper punch (2) which is matched with a powder filling cavity (1-1) of a female die (1) to form the head of the slotted screw, and the lower punch assembly comprises a lower punch (3) the top of which is positioned in the powder filling cavity (1-1) and a lower second punch (4) which is sleeved in the lower punch (3) and is used for forming the cavity of the screw stud part.
2. The powder metallurgy die for a pan head screw according to claim 1, wherein: the top end part of the lower second punch (4) is provided with a hole (4-1) for forming a chamfer of the screw column part.
3. The powder metallurgy die for a pan head screw according to claim 2, wherein: the chamfer angle of the screw stud part is 40 degrees.
4. The powder metallurgy die for a pan head screw according to claim 1, wherein: the lower end part of the upper punch (2) is provided with an arc-shaped bulge (2-1) for forming a straight groove.
5. The powder metallurgy die for a pan head screw according to claim 1, wherein: the unilateral assembly gap between the upper punch (2) and the female die (1) is 0.015-0.025 mm.
6. The powder metallurgy die for a pan head screw according to claim 1, wherein: the unilateral assembly gap between the next punch (3) and the female die (1) is 0.015-0.025 mm.
7. The powder metallurgy die for a slotted pan head screw according to any one of claims 1 to 6, wherein: two powder filling cavities (1-1) are arranged in the female die (1), and a group of punch die assemblies are arranged in each powder filling cavity (1-1) in a matched manner.
8. The powder metallurgy die for a slotted pan head screw according to any one of claims 1 to 6, wherein: the female die (1) is made of WC.
9. The powder metallurgy die for a slotted pan head screw according to any one of claims 1 to 6, wherein: the material of the upper punch (2), the lower punch (3) and the lower punch (4) is DC 53.
CN202121533294.6U 2021-07-07 2021-07-07 Powder metallurgy die of slotted pan head screw Active CN215033598U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121533294.6U CN215033598U (en) 2021-07-07 2021-07-07 Powder metallurgy die of slotted pan head screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121533294.6U CN215033598U (en) 2021-07-07 2021-07-07 Powder metallurgy die of slotted pan head screw

Publications (1)

Publication Number Publication Date
CN215033598U true CN215033598U (en) 2021-12-07

Family

ID=79227934

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121533294.6U Active CN215033598U (en) 2021-07-07 2021-07-07 Powder metallurgy die of slotted pan head screw

Country Status (1)

Country Link
CN (1) CN215033598U (en)

Similar Documents

Publication Publication Date Title
CN204953630U (en) Ejecting formula blanking die
CN206622522U (en) A kind of convertible short tube mould
CN204308124U (en) For the assembling die of motor-car high gear ring blank forging
CN215033598U (en) Powder metallurgy die of slotted pan head screw
CN212194364U (en) Molding cavity mold convenient to adjust
CN204638848U (en) A kind of high accuracy blanking die
CN206550146U (en) A kind of cold extrusion device of spiral bevel gear
CN217257631U (en) A mould for plastics processing
CN215144692U (en) Powder metallurgy die for manufacturing connecting plate
CN214867256U (en) Forming die of powder metallurgy gear
CN210148606U (en) Combined die capable of quickly replacing die cavity
CN209189601U (en) A kind of component with inclined plane takes out the structure of tooth
CN217252611U (en) Double-end nut mold processing
CN215703444U (en) Vertical taper mode locking structure device
CN212242306U (en) Forming device is used in production of precision mold
CN203046127U (en) Solar type injection molding machine
CN217647465U (en) Stainless steel flange forging mould
CN211730007U (en) Precision plastic accessory production mold
CN210059714U (en) Die for producing cutting box
CN214982781U (en) Plastic mold with hot-to-cold three-plate mold structure
CN216226436U (en) Hexagonal mold processing in punching press blind hole with protection machanism
CN209409417U (en) A kind of combined type punch-forming mold
CN212764955U (en) High-precision die
CN210080630U (en) Internal mold for free forging
CN215237821U (en) Balance structure of long rod-shaped forming punch of C-shaped opening

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant