CN203356514U - Die structure used for secondary station upsetting of straight-slot or cross-slot lug bolt - Google Patents
Die structure used for secondary station upsetting of straight-slot or cross-slot lug bolt Download PDFInfo
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- CN203356514U CN203356514U CN 201320438951 CN201320438951U CN203356514U CN 203356514 U CN203356514 U CN 203356514U CN 201320438951 CN201320438951 CN 201320438951 CN 201320438951 U CN201320438951 U CN 201320438951U CN 203356514 U CN203356514 U CN 203356514U
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- secondary station
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- punch die
- slot
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Abstract
The utility model relates to a die structure used for secondary station upsetting of a straight-slot or cross-slot lug bolt. The die structure comprises a secondary station master die and a secondary station punch die, wherein a secondary station master die returning rod is arranged at the center of the secondary station master die, the secondary station punch die comprises a secondary station punch die sleeve, a punch die internal mold is arranged on the head portion of the secondary station punch die sleeve, an upper die cushion is arranged inside the secondary station punch die sleeve, and the upper die cushion is located on the bottom of the punch die internal mold. According to the die structure used for secondary station upsetting of the straight-slot or cross-slot lug bolt, the straight-slot square head lug upsetting technique is utilized, the punch die internal mold is used at a secondary station especially, and the depth and width dimensional accuracy and roughness of an upset straight slot are better than those of a milled groove; by means of the one set of dies at the secondary station, the follow-up groove milling process is eliminated, manufacturing processes are simplified, production cost is reduced, production efficiency is improved, the utilizing rate of materials is high, and the discard rate is reduced.
Description
Technical field
The utility model relates to a kind of mould structure in five metals processing and manufacturing industry, especially relates to the mould structure of flat recess or the two station upsetting pressures of cross recess tang screw.
Background technology
At present, in daily life, the tang screw is often used (as shown in Figure 5), and the tang screw used need to be at part head processing flat recess or cross recess, the step that this type product is generally made is, at first carry out preliminary upsetting pressure at a station, afterwards at the whole upsetting of two stations and contracting tang, the two station master mould material returned location materials returned, product is not rotated, forward three stations to and cut four directions, due to the flat recess of tang screw head or cross recess in Mould Machining, be not easy centering and requirement must with flat bit parallel, so just need postorder machining, mill flat recess or cross recess with the milling machine contraposition, to reach the drawing necessary requirement, the operation that this mode adopts is more, increased production cost, efficiency is low, scrappage is high, stock utilization is lower, do not meet the requirement of Reducing Cost in Enterprises.
Summary of the invention
Technical problem to be solved in the utility model is to provide the mould structure of a kind of flat recess that can reduce manufacturing procedure, reduce production costs and can raise the efficiency or the two station upsetting pressures of cross recess tang screw.
The technical scheme in the invention for solving the technical problem is: the mould structure of a kind of flat recess or the two station upsetting pressures of cross recess tang screw, comprise two station master moulds and two station punch dies, be provided with two station master mould material returned rods at two station Zhu Mo centers, described two station punch dies comprise two station punch die overcoats, the head of two station punch die overcoats is provided with the punch die internal mold, be provided with die-cushion in two station punch die overcoat inside, upper die-cushion is positioned at the bottom of punch die internal mold.
Further, in order to facilitate moulding and to manufacture flat recess or the service life of cross recess and increase mould, described punch die internal mold comprises the first inserts and the second inserts, the first inserts head is provided with forming cavity, be provided with the second inserts at the center of forming cavity, the second inserts head is in the upper die forming chamber.
Further concrete, described the second inserts is in-line or cross.
Further concrete, described two station master die section centers are provided with main mould inserts, and main mould inserts is provided with main mold forming chamber.
The beneficial effects of the utility model are: after having adopted said structure, utilize a word square toes tang upsetting cutting process, key has been used the punch die internal mold at two stations, flat recess is made in upsetting, dimensional accuracy and the roughness of its degree of depth, width all improve a lot than groove milling, only adopted a step operation just make the easy centering of flat recess and with flat bit parallel; Use two station one molds can save follow-up groove milling technique, reduced manufacturing procedure, reduced production cost, improved production efficiency, stock utilization is higher, has reduced scrappage.
The accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention;
Fig. 2 is the structural representation of the present invention's one station;
Fig. 3 is the structural representation of the present invention's two stations;
Fig. 4 is the structural representation of the present invention's three stations;
Fig. 5 is the structural representation of tang screw.
In figure: 1, a station punch die cover; 2, upper trimming die; 3, a work station product; 4, a station master mould; 5, a station master mould material returned rod; 6, two station punch die overcoats; 7, upper die-cushion; 8, punch die internal mold; 9, two work station products; 10, two station master moulds; 11, two station master mould material returned rods; 12, three station punch die overcoats; 13, trip bolt; 14, edger; 15, three work station products; 16, three station master moulds; 17, three station master mould material returned rods; 8-1, the first inserts; 8-2, the second inserts; 10-1, main mould inserts.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The manufacturing process of a kind of flat recess or cross recess tang screw as shown in Figure 1, the step of this forming method is:
S1: prepare wire rod, the head of wire rod is carried out to preliminary upsetting pressure;
S2: the head to preliminary upsetting pressure wire rod carries out upsetting pressure contracting tang, and top also is flat recess or cross recess;
S3: the wire rod head that step S2 upsetting pressure is shaped carries out trimming, and the head trimming is to square.
The mould structure of a kind of flat recess or the two station upsetting pressures of cross recess tang screw as shown in Figure 3, comprise two station master moulds 10 and two station punch dies, be provided with two station master mould material returned rods 11 at two station Zhu Mo 10 centers, described two station punch dies comprise two station punch die overcoats 6, the head of two station punch die overcoats 6 is provided with punch die internal mold 8, be provided with die-cushion 7 in two station punch die overcoat 6 inside, upper die-cushion 7 is positioned at the bottom of punch die internal mold 8; Described punch die internal mold 8 comprises the first inserts 8-1 and the second inserts 8-2, and the first inserts 8-1 head is provided with forming cavity, is provided with the second inserts 8-2 at the center of forming cavity, and the second inserts 8-2 head is in the upper die forming chamber; Described the second inserts 8-2 is in-line or cross; Described two station master mould 10 head center positions are provided with main mould inserts 10-1, and main mould inserts 10-1 is provided with main mold forming chamber.
At first wire rod is placed on as shown in Figure 2 in a station master mould 4, by a station punch die cover 1 and upper trimming die 2, the upsetting pressure of wire rod head is shaped, by a station master mould material returned rod 5, a work station product 3 is released, afterwards as shown in Figure 3 will be in a work station product 3 be placed into two station master moulds 10, by two station punch die overcoats 6, upper die-cushion 7 and punch die internal mold 8 become flat recess by head upsetting pressure contracting tang the upsetting pressure of a work station product 3, by two station master mould material returned rods 11, two work station products 9 are released, the easy centering of flat recess of the workpiece head processed and can be parallel with tang, finally two work station products 9 are placed in three station master moulds 16 as shown in Figure 4, by three station punch die overcoats 12 and edger 14 by two work station product 15 cutting quadrates, three station master mould material returned rods 17 pass through three work station products 15 to release in the middle of three station punch die overcoats 12 afterwards.
In processing, the square head of this product must be parallel with flat recess and tang, the line position precision can not produce torsion, not parallel angle can not surpass 2 degree, when the convex epirelief upsetting squeeze that two station master mould materials returned rods 11 and product contact jaw will be designed to wide 0.5mm, high 0.6mm enters the product tail end and makes the material returned, product can not rotate, and shifts smoothly lower order three stations, positions and cuts four directions, three station master mould material returned rods 17, the material returned is torn and is broken product and exited production.
It is emphasized that: above is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. the mould structure of a flat recess or the two station upsetting pressures of cross recess tang screw, comprise two station master moulds (10) and two station punch dies, be provided with two station master mould material returned rods (11) at two station master mould (10) centers, it is characterized in that, described two station punch dies comprise two station punch die overcoats (6), the head of two station punch die overcoats (6) is provided with punch die internal mold (8), be provided with upper die-cushion (7) in two station punch die overcoat (6) inside, upper die-cushion (7) is positioned at the bottom of punch die internal mold (8).
2. the mould structure of flat recess according to claim 1 or the two station upsetting pressures of cross recess tang screw, it is characterized in that, described punch die internal mold (8) comprises the first inserts (8-1) and the second inserts (8-2), the first inserts (8-1) head is provided with forming cavity, be provided with the second inserts (8-2) at the center of forming cavity, the second inserts (8-2) head is in the upper die forming chamber.
3. the mould structure of flat recess according to claim 2 or the two station upsetting pressures of cross recess tang screw, is characterized in that, described the second inserts (8-2) is in-line or cross.
4. the mould structure of flat recess according to claim 1 or the two station upsetting pressures of cross recess tang screw, it is characterized in that, described two station master mould (10) head center positions are provided with main mould inserts (10-1), and main mould inserts (10-1) is provided with main mold forming chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320438951 CN203356514U (en) | 2013-07-23 | 2013-07-23 | Die structure used for secondary station upsetting of straight-slot or cross-slot lug bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320438951 CN203356514U (en) | 2013-07-23 | 2013-07-23 | Die structure used for secondary station upsetting of straight-slot or cross-slot lug bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203356514U true CN203356514U (en) | 2013-12-25 |
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ID=49804336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320438951 Expired - Lifetime CN203356514U (en) | 2013-07-23 | 2013-07-23 | Die structure used for secondary station upsetting of straight-slot or cross-slot lug bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203356514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386458A (en) * | 2013-07-23 | 2013-11-13 | 苏州工业园区新凯精密五金有限公司 | Forming method of straight slot or cross slot flat tail screw and die structure adopted by same |
| CN107335767A (en) * | 2017-09-04 | 2017-11-10 | 江西洪都航空工业集团有限责任公司 | A kind of cruciform slot screw cold-heading molding processing mold and its processing technology |
-
2013
- 2013-07-23 CN CN 201320438951 patent/CN203356514U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386458A (en) * | 2013-07-23 | 2013-11-13 | 苏州工业园区新凯精密五金有限公司 | Forming method of straight slot or cross slot flat tail screw and die structure adopted by same |
| CN107335767A (en) * | 2017-09-04 | 2017-11-10 | 江西洪都航空工业集团有限责任公司 | A kind of cruciform slot screw cold-heading molding processing mold and its processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |