CN108608174A - A kind of both ends press axis and preparation process - Google Patents
A kind of both ends press axis and preparation process Download PDFInfo
- Publication number
- CN108608174A CN108608174A CN201810466384.4A CN201810466384A CN108608174A CN 108608174 A CN108608174 A CN 108608174A CN 201810466384 A CN201810466384 A CN 201810466384A CN 108608174 A CN108608174 A CN 108608174A
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- CN
- China
- Prior art keywords
- blank
- axis
- stamping die
- rivet
- press
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
It presses axis preparation process the invention discloses a kind of both ends, belongs to component of machine processing and manufacturing technology, drip irrigation device includes step 1：Pretreated raw material are chosen according to detail drawing；Step 2：It is segmented according to selected raw material, to obtain blank；Step 3：The first end of blank is squeezed by the first stamping die；Step 4：The second end of blank after being processed to step 3 by the second stamping die squeezes；Step 5：The first end of blank after being processed to step 4 by third stamping die squeezes so that first end continues undergauge；Step 6：The first part of blank after being processed to step 5 by the 4th stamping die squeezes so that first part continues undergauge；Step 7：The second end of blank after being processed to step 6 by the 5th stamping die carries out cold-heading drilling forming, that is, completes the process of part, and the present invention has the advantages of saving raw material, improving production capacity.
Description
Technical field
The invention belongs to component of machine processing and manufacturing technologies, more specifically it be related to a kind of both ends press axis with
And preparation process.
Background technology
Riveting refers to utilizing axial force, riveting pin head is upset, the method for making multiple parts be connected to a fixed；It is former from riveting
Rotation riveting can be divided into reason again and pressed.
Traditional processing method that presses is usually used automatic lathe machining, but still there are time-consuming, production capacity is relatively low,
The defects of waste material is more, therefore raw material how are made full use of, it is current problem to be solved to improve production capacity.
Invention content
In view of the deficienciess of the prior art, the first object of the present invention, which is to provide a kind of both ends axis that presses, prepares work
The advantages of skill has and saves raw material, improves production capacity.
To realize above-mentioned first purpose, the present invention provides following technical solutions：
A kind of both ends press axis preparation process, include the following steps：
Step 1：Pretreated raw material are chosen according to detail drawing；
Step 2：It is segmented according to selected raw material, to obtain blank；
Step 3：The first end of blank is squeezed by the first stamping die, to obtain the ruler required by first end undergauge
It is very little；
Step 4：The second end of blank after being processed to step 3 by the second stamping die squeezes, to obtain second end contracting
Size required by diameter；
Step 5：The first end of blank after being processed to step 4 by third stamping die squeezes so that the upsetting of first end
Portion's undergauge, and obtain the first part of required size；
Step 6：The first part of blank after being processed to step 5 by the 4th stamping die squeezes so that first part
Upsetting portion undergauge, and obtain the second part of required size；
Step 7：The second end of blank after being processed to step 6 by the 5th stamping die carries out cold-heading drilling forming, that is, completes
The process of part.
By using above-mentioned technical proposal, first, raw material are chosen according to detail drawing, and carry out to the raw material of selection
Segmentation, to obtain blank；Then, blank is squeezed by the first stamping die, and is hair according to required size
One end of blank carries out undergauge, to form the first end of bar portion；Again by the second stamping die to the hair of the first end far from bar portion
Blank is squeezed, and carries out undergauge to the other end of blank according to required size, to form the second end of bar portion；So
Afterwards, undergauge, and the shape in the first end of bar portion are continuously carried out to the first end of bar portion by third stamping die and the 4th stamping die
At first part and second part, even if the first end of bar portion is stepped；Finally, by the 5th stamping die to the second of bar portion
End carries out cold-heading drilling forming, that is, completes the process of part.And due to above-mentioned processing during do not generate waste material, relatively
In traditional automatic lathe machining, above-mentioned process makes full use raw material, and production capacity can be improved.
The present invention is further arranged to：Pretreatment in the step 1 includes at annealing softening processing and surface phospholeum
Reason.
By using above-mentioned technical proposal, annealing softening is that the metal of cold deformation and alloy are heated to less than recrystallization temperature
It spends and keeps the temperature, be allowed to reply, to reduce hardness, prevent cracking, deformation of rolled wire；And surface phospholeum is to be used for metal
The extruding of cold forming, drawing lubrication processing, improves the greasy property of metalwork.
The present invention is further arranged to：The step 2 is to cut material system automatically using intermittent stepping, automatically by diameter with
The close element coil material of circumscribed circle of axis of pressing cuts the blank of reasonable length, and through automatic feeding system synchronous transport to rushing more
Journey cold headers carry out cold extrusion.
By using above-mentioned technical proposal, cutting material system and automatic feeding system automatically using intermittent stepping can realize
Automation improves production efficiency.
The present invention is further arranged to：After outer diameter in the step 4 after second end undergauge is more than the first end undergauge
Outer diameter.
By using above-mentioned technical proposal, during riveting, both ends press axis first end and second end formed rank
Scalariform avoids the both ends axis that presses from generating inclination, offset in riveting, so as to ensure that riveting operation can be normal, effective
It carries out.
The second object of the present invention is to provide a kind of both ends and presses axis, the advantage is that effectively raising both ends presses
Fixed effect after axis riveting.
To realize above-mentioned second purpose, the present invention provides following technical solutions：A kind of both ends press axis, including by blank
Rivet rod, rivet set and the limited step of part one cold-heading manufacture, the one end of the rivet rod far from the rivet set are provided with cold-heading punching
Molding taper rivet hole.
By using above-mentioned technical proposal, the both ends axis that presses carries out cold pier molding on Cold header by mating mold,
And since taper rivet hole is by cold-heading drilling forming, to effectively avoid the generation of taper rivet hole inner burr, make simultaneously
Both ends press axis metal structure it is finer and closely woven, reduce procedure of processing, improve production efficiency；Wherein, since rivet hole is taper
, instead of original common blind hole, to during riveting, rivet hole is easier uniformly after being under pressure to extending out
It dissipates, avoids after compression to rivet hole center deformation, press the fixed effect after axis riveting to effectively raise both ends.
The present invention is further arranged to：The taper rivet hole depth is 2/7 with rivet rod lenth ratio.
By using above-mentioned technical proposal, show that taper rivet hole depth and rivet rod lenth ratio are 2/7 according to many experiments
When, the fixing intensity, counter-bending deformability after riveting are most strong, i.e., effectively avoid and generate larger change at rivet rod deformation
Shape, the both ends for the keeping connection product thickness different axis that presses has identical riveting deflection, to make every place press using both ends
The bonding strength ratio all same of axis.
The present invention is further arranged to：It is zinc-plated that the surface of the rivet rod, rivet set and limited step has plating to be formed
Layer.
By using above-mentioned technical proposal, the setting of zinc coat can not only make both ends press axis with rust-proof effect, carry
Security performance when height uses；The both ends axis surface-brightening that presses can be made to have texture simultaneously.
The present invention is further arranged to：The surface side of the rivet rod is provided with plane.
By using above-mentioned technical proposal, after completing riveting, the setting of plane is so that the surface of rivet rod forms one not
The shape of rule, in rivet rod and connect when product contacts can be more secured.
In conclusion the present invention has the following advantages：
1, by cold-heading drilling forming, to effectively avoid the generation of taper rivet hole inner burr, while both ends are pressed
The metal structure of axis is finer and closely woven, reduces procedure of processing, improves production efficiency；
2, no waste mine generates during processing, and makes full use of raw material, it is easier to realize automated production, improve production effect
Rate；
3, there is rust-proof effect, improve security performance when using.
Description of the drawings
Fig. 1 is that both ends press the structural schematic diagram of axis in the present embodiment；
Fig. 2 is that both ends press the sectional view of axis in the present embodiment；
Fig. 3 is that both ends press the forming process figure of axis preparation process in the present embodiment；
Fig. 4 is that both ends press the step flow chart of axis preparation process in the present embodiment.
Reference sign：1, blank；11, rivet rod；12, rivet set；13, limited step；2, taper rivet hole；3, plane.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
A kind of both ends axis that presses includes as illustrated in fig. 1 and 2 by rivet rod 11, the rivet set 12 of the integrated cold-heading manufacture of blank 1
With limited step 13, the one end of rivet rod 11 far from rivet set 12 is provided with the taper rivet hole 2 of cold-heading drilling forming.Taper rivet hole 2 is logical
Cold-heading drilling forming is crossed, to effectively avoid the generation of 2 inner burr of taper rivet hole, while so that both ends press the metal of axis
Tissue is finer and closely woven, reduces procedure of processing, improves production efficiency.
Wherein, 2 depth of taper rivet hole and 11 lenth ratio of rivet rod are 2/7, show 2 depth of taper rivet hole according to many experiments
When with 11 lenth ratio of rivet rod being 2/7, the fixing intensity, counter-bending deformability after riveting are most strong, i.e., effectively avoid riveting
Larger deformation is generated at 11 deformation of bar, the both ends for the keeping connection product thickness different axis that presses has identical riveting deflection,
To make every place press using both ends the bonding strength ratio all same of axis.
As shown in Figure 1, the surface side of rivet rod 11 is provided with plane 3, after completing riveting, by plane 3 so that rivet rod
11 surface forms an irregular shape, in rivet rod 11 and connect when product contacts can be more secured.
It is noted that there is the zinc coat that plating is formed on the surface of rivet rod 11, rivet set 12 and limited step 13, lead to
Crossing zinc coat can not only make both ends press axis with rust-proof effect, improve security performance when using, while can make both ends
The axis surface-brightening that presses has texture.
A kind of both ends axis preparation process that presses includes the following steps as shown in Figures 2 and 3：
Step 1：Pretreated raw material are chosen according to detail drawing, pretreatment includes annealing softening processing and surface phospholeum
Processing；
Step 2：Material system is cut automatically using intermittent stepping, automatically by the close element coil material of the circumscribed circle of diameter and the axis that presses
It cuts the blank 1 of reasonable length, and cold extrusion is carried out through automatic feeding system synchronous transport to more stroke cold headers；
Step 3：After blank 1 enters cold headers, blank 1 is squeezed by the first stamping die, and according to required
Size is that one end of blank 1 carries out undergauge, to form the first end of bar portion；
Step 4：The blank 1 of the first end far from bar portion is squeezed by the second stamping die, and according to required ruler
The very little other end to blank 1 carries out undergauge, to form the second end of bar portion, i.e. rivet rod 11 shown in Fig. 1（See Fig. 1）, and
Rivet set 12 is formed between the first end and second end of bar portion（See Fig. 1）；Wherein, rivet rod 11（See Fig. 1）Outer diameter be more than bar portion the
The press first end and second end of axis of outer diameter after the undergauge of one end, i.e. both ends forms ladder-like, and axis is pressed in riveting to avoid both ends
It is generated when pressure and tilts, deviates, so as to ensure that riveting operation normally, can be carried out effectively；
Step 5：The first end of bar portion is squeezed by third stamping die so that the upsetting portion undergauge of the first end of bar portion, and
Obtain the first part of required size；
Step 6：The first part of bar portion is squeezed by the 4th stamping die so that the upsetting portion undergauge of first part, and obtain
Required size second part, and first part and second part form ladder in the first end of bar portion, i.e. institute in Fig. 1
The limited step 13 shown（See Fig. 1）；
Step 7：Cold-heading drilling forming is carried out to the second end of bar portion by the 5th stamping die, refers specifically to add for the second end of bar portion
The tapered rivet hole of work 2（See Fig. 2）, that is, complete the process of part.
Operation principle：First, raw material are chosen according to detail drawing, and material system is cut by intermittent stepping automatically, from
The close element coil material of the dynamic circumscribed circle by diameter and the axis that presses cuts the blank 1 of reasonable length, and through automatic feeding system
Synchronous transport carries out cold extrusion to more stroke cold headers；Then, blank 1 is squeezed by the first stamping die, and according to
Required size is that one end of blank 1 carries out undergauge, to form the first end of bar portion；Again by the second stamping die to separate
The blank 1 of the first end of bar portion is squeezed, to form rivet rod 11, and the first end of the rivet rod 11 and bar portion on blank 1
Between formed rivet set 12；Then, undergauge is continuously carried out to the first end of bar portion by third stamping die and the 4th stamping die, with shape
At limited step 13；Finally, cold-heading drilling forming is carried out to end face of the rivet rod 11 far from 12 side of rivet set by the 5th stamping die,
To form taper rivet hole 2, that is, complete the process of part.And due to above-mentioned processing during do not generate waste material, relative to
Traditional automatic lathe machining, above-mentioned process makes full use raw material, and production capacity can be improved.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to restrict the invention, all design structures in the present invention
Within think of, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
- The axis preparation process 1. a kind of both ends press, it is characterised in that：Include the following steps：Step 1：Pretreated raw material are chosen according to detail drawing；Step 2：It is segmented according to selected raw material, to obtain blank (1)；Step 3：The first end of blank (1) is squeezed by the first stamping die, to obtain required by first end undergauge Size；Step 4：The second end of blank (1) after being processed to step 3 by the second stamping die squeezes, to obtain second end Size required by undergauge；Step 5：The first end of blank (1) after being processed to step 4 by third stamping die squeezes so that first end Upsetting portion undergauge, and obtain the first part of required size；Step 6：The first part of blank (1) after being processed to step 5 by the 4th stamping die squeezes so that first The upsetting portion undergauge divided, and obtain the second part of required size；Step 7：The second end of blank (1) after being processed to step 6 by the 5th stamping die carries out cold-heading drilling forming, i.e., complete At the process of part.
- The axis preparation process 2. a kind of both ends according to claim 1 press, it is characterised in that：Pre- place in the step 1 Reason includes annealing softening processing and surface phosphorus saponification process.
- The axis preparation process 3. a kind of both ends according to claim 1 press, it is characterised in that：The step 2 is between applying The stepping of having a rest property cuts material system automatically, and the close element coil material of the circumscribed circle of diameter and the axis that presses is cut the hair of reasonable length automatically Base, and carry out cold extrusion through automatic feeding system synchronous transport to more stroke cold headers.
- The axis preparation process 4. a kind of both ends according to claim 1 press, it is characterised in that：Second end in the step 4 Outer diameter after undergauge is more than the outer diameter after the first end undergauge.
- The axis 5. a kind of both ends press, it is characterised in that：Include by rivet rod (11), the rivet set of the integrated cold-heading manufacture of blank (1) (12) and limited step (13), the one end of the rivet rod (11) far from the rivet set (12) are provided with the taper of cold-heading drilling forming Rivet hole (2).
- The axis 6. both ends according to claim 5 press, it is characterised in that：Taper rivet hole (2) depth and rivet rod (11) Lenth ratio is 2/7.
- The axis 7. both ends according to claim 5 press, it is characterised in that：The rivet rod (11), rivet set (12) and limit There is the zinc coat that plating is formed on the surface of step (13).
- The axis 8. both ends according to claim 5 press, it is characterised in that：The surface side of the rivet rod (11) is provided with flat Face (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466384.4A CN108608174A (en) | 2018-05-16 | 2018-05-16 | A kind of both ends press axis and preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466384.4A CN108608174A (en) | 2018-05-16 | 2018-05-16 | A kind of both ends press axis and preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108608174A true CN108608174A (en) | 2018-10-02 |
Family
ID=63663484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810466384.4A Pending CN108608174A (en) | 2018-05-16 | 2018-05-16 | A kind of both ends press axis and preparation process |
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| CN (1) | CN108608174A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB728951A (en) * | 1951-05-09 | 1955-04-27 | Tucker Eyelet Co George | Improvements in or relating to the manufacture of rivets |
| DE2157885A1 (en) * | 1969-05-29 | 1973-05-30 | Standard Pressed Steel Co | PROCESS FOR FORMING HIGH STRENGTH RIVETS AND DEVICE FOR CARRYING OUT THE PROCESS |
| CN102500732A (en) * | 2011-10-17 | 2012-06-20 | 浙江裕泰汽车配件有限公司 | Multi-station cold heading forming technology of automobile door limiter |
| CN102927103A (en) * | 2012-11-06 | 2013-02-13 | 三门通顺铆钉有限公司 | Open-contraction brake block rivet and production method thereof |
| CN204664091U (en) * | 2015-05-13 | 2015-09-23 | 台州市丰华通用机械有限公司 | Ladder rivet |
| CN106270332A (en) * | 2015-05-17 | 2017-01-04 | 周满志 | The cold-heading molding method of power pin |
| CN108246962A (en) * | 2017-11-27 | 2018-07-06 | 苏州麦德柯金属制品工业有限公司 | The processing technology and its processing mold of a kind of rivet |
-
2018
- 2018-05-16 CN CN201810466384.4A patent/CN108608174A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB728951A (en) * | 1951-05-09 | 1955-04-27 | Tucker Eyelet Co George | Improvements in or relating to the manufacture of rivets |
| DE2157885A1 (en) * | 1969-05-29 | 1973-05-30 | Standard Pressed Steel Co | PROCESS FOR FORMING HIGH STRENGTH RIVETS AND DEVICE FOR CARRYING OUT THE PROCESS |
| CN102500732A (en) * | 2011-10-17 | 2012-06-20 | 浙江裕泰汽车配件有限公司 | Multi-station cold heading forming technology of automobile door limiter |
| CN102927103A (en) * | 2012-11-06 | 2013-02-13 | 三门通顺铆钉有限公司 | Open-contraction brake block rivet and production method thereof |
| CN204664091U (en) * | 2015-05-13 | 2015-09-23 | 台州市丰华通用机械有限公司 | Ladder rivet |
| CN106270332A (en) * | 2015-05-17 | 2017-01-04 | 周满志 | The cold-heading molding method of power pin |
| CN108246962A (en) * | 2017-11-27 | 2018-07-06 | 苏州麦德柯金属制品工业有限公司 | The processing technology and its processing mold of a kind of rivet |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181002 |
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| RJ01 | Rejection of invention patent application after publication |