CN100513002C - Steel ball cold heading technique and steel ball cold header - Google Patents
Steel ball cold heading technique and steel ball cold header Download PDFInfo
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- CN100513002C CN100513002C CNB2007101922035A CN200710192203A CN100513002C CN 100513002 C CN100513002 C CN 100513002C CN B2007101922035 A CNB2007101922035 A CN B2007101922035A CN 200710192203 A CN200710192203 A CN 200710192203A CN 100513002 C CN100513002 C CN 100513002C
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Abstract
The invention discloses a steel ball cold heading process and a relevant steel ball cold heading machine. The invention is characterized in that in the steel ball cold heading process, after barstocks are cut into column-shaped blanks, two ends of the column shaped blanks are rubbed and cut into inversed angel or round angle shapes, and then the blanks are transferred to a cold heading mechanism to be headed into steel ball rough cast; a blank rubbing and cutting mechanism is additionally arranged on the corresponding cold heading machine. The rubbing and cutting mechanism consists of an upper rubbing and cutting die and a lower rubbing and cutting die which are provided with formed notches respectively and carry out relative movement. As the rubbing and cutting machining to the blanks is added before the cold heading, the fact that the blanks entering the cold heading mechanism are the cylinders with round angles or inversed angles or the podetiums with other special shapes and no burrs are produced can be guaranteed, and the steel ball rough cast has better plastic transfiguring capability and uniform distribution of stress. The quality and eligibility rate of the steel ball rough cast can be enhanced and the manufacturing cost thereof can be reduced. Furthermore, as the shapes of the blanks entering the cold forging mechanism are regular, the stress born by the cold heading mechanism is equal in the punching process, thus the service life of cold heading dies is prolonged.
Description
Technical field
The present invention relates to a kind of steel ball manufacturing equipment and related process, especially relate to a kind of ball cold header and corresponding steel ball cold heading technique.
Background technology
Steel ball cold heading processing is the production link that steel ball blanks is provided for the steel ball grinding, and the quality quality of steel ball cold heading processing directly influences the quality of steel ball finished product.Existing steel ball blanks cold upsetting production technology is: feeding (bar) → cut off → feeding (cylinder blank) → cold-heading (punching press) → steel ball blanks.Its implementation procedure in ball cold header is (as Fig. 1): motor-driven feeding runner 9 is sent bar 6 to along the guide hole axial direction of guide plate 8, after bar 6 stretches out certain-length, the shearing die 7 of cutting mechanism is cut off bar 6 becomes blank 3, and blank 3 is delivered to the punch die place of cold-heading mechanism, shearing die 7 is return, upper trimming die push rod 5 stretches out, blank 3 is headed into down in the punch die 2, upper trimming die 4 and following punch die 2 will be sheared bar and strike out steel ball blanks, following punch die push rod 1 ejects punch die with steel ball blanks, carries out next one circulation again.
In using existing steel ball blanks production technology and cold headers production steel ball blanks process, because bar is in the process of cutting off, can deform and can not guarantee that blank is a cylinder, and blank has burr or burr, so can cause blank in the process of punching press cold-heading, plastic deformation is bad, the ess-strain skewness causes the steel ball blanks defectiveness after the punching press, and is folding etc. as local underfill, material, the steel ball blanks qualification rate is lower, and the difficult quality of steel ball blanks is guaranteed.Also cause cold-heading mould discontinuity in punching course in addition, influence the service life of cold-heading mould.
Summary of the invention
The applicant has carried out research and has improved at above-mentioned technical problem, a kind of steel ball cold heading technique that can prolong die life, raising steel ball blanks cold-heading quality and qualification rate is provided, and a kind of ball cold header of implementing this steel ball cold heading technique is provided.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of steel ball cold heading technique is characterized in that step is:
Step 1. feed mechanism is sent bar into cutting mechanism;
Step 2. cutting mechanism becomes cylinder blank with sheared blank;
Step 3. feed mechanism is sent blank into the stranding cutting mechanism;
Step 4. is rubbed cutting mechanism with the hands the stranding of blank two ends is cut out chamfering or fillet;
Step 5. feed mechanism is sent blank into cold-heading mechanism;
Step 6. cold-heading mechanism becomes steel ball blanks with the blank cold-heading;
Step 7. material jacking mechanism ejects cold-heading mechanism with steel ball blanks.
Stranding cutting mechanism in the above-mentioned steps 4 is rubbed blank with the hands and is cut into the cydariform cylinder.
Implement the ball cold header of above-mentioned steel ball cold heading technique, comprise the feed mechanism between cutting mechanism, cold-heading mechanism and each mechanism, device has the stranding cutting mechanism between above-mentioned cutting mechanism and the cold-heading mechanism.
Above-mentioned stranding cutting mechanism is to do go up rubbing with the hands of relative motion to cut mould and rub with the hands down and cut mould, and it is respectively equipped with the shaping notch.
Above-mentioned shaping notch is " Qian " shape notch, and the base angle of notch both sides is chamfering or the fillet that changes from small to big.
Above-mentioned shaping notch is " U " shape notch, and the base angle of notch both sides is chamfering or the fillet that changes from small to big.
Technique effect of the present invention is: cut processing owing to increased the stranding of blank before cold-heading, the blank that assurance enters cold-heading mechanism is to have the cylinder of fillet or chamfering or the cylinder of other special shapes, and there are not burr or burr, make the plastic deformation of steel ball blanks good, ess-strain is evenly distributed, improve the quality and the qualification rate of steel ball blanks, reduce the production cost of steel ball blanks.In addition, because it is regular to enter the blank shape of cold-heading mechanism, the cold-heading mould is stressed even in punching course, prolongs the service life of cold-heading mould.
Description of drawings
Fig. 1 is existing ball cold header structural representation.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the structural representation of stranding cutting mechanism of the present invention.
Fig. 4 is that the mould profile is cut in the upper and lower stranding that has chamfering.
Fig. 5 is that the mould profile is cut in the upper and lower stranding that has fillet.
Fig. 6 cuts the mould profile for the upper and lower stranding that has " U " shape notch.
Fig. 7 is the blank that has chamfering.
Fig. 8 is the blank that has fillet.
Fig. 9 is a cydariform cylinder blank.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 2, the feeding runner 10 of motor-driven feed mechanism is sent bar 20 along the guide hole axial direction of guide plate 11, after bar stretches out certain-length, the shearing die 13 of cutting mechanism is cut off bar 20, and the blank 21 that will shear is delivered to the end of feed mechanism push rod 12, push rod 12 heads into the stranding of going up of rubbing cutting mechanism with the hands with blank 21 and cuts mould 14 and rub the inner chamber place of cutting mould 15 down with the hands, last stranding is cut mould 14 and is descended stranding to cut mould 15 and makes blank 21 predeformation in its shape chamber do relative motion, and predeformation blank 21 delivered to the cold heading die place by feed mechanism (not illustrating in the drawings), the push rod 16 of upper trimming die 17 stretches out, blank 21 is headed into down in the punch die 18, upper trimming die 17 and following punch die 18 strike out steel ball blanks with blank 21, following punch die push rod 19 ejects down punch die 18 with steel ball blanks, carries out next one circulation again.
Shown in Fig. 3,4,5, the stranding cutting mechanism is cut mould 14 and is descended stranding to cut mould 15 by last stranding and constitutes, and upper and lower stranding is cut and done relative motion between the mould, and their reciprocating motion can be by drivings such as existing cam mechanism, crankshaft connecting rod system or cylinders.In the present embodiment, last stranding is cut mould 14 and is descended stranding to cut mould 15 and has " Qian " shape notch, the base angle of notch both sides is chamfering or the fillet that changes from small to big, be described chamfering or fillet from the A section to the C section gradually never to having and progressively enlarging, last stranding is cut mould 14 along rubbing butt with the hands to moving, and rubs blank 21 with the hands be extruded onto the C section right-hand member place from A section left end.The effect of A section is mainly guiding, and revises shapes for the cylinder blank 21 of distortion, adjusts blank 21 and cuts position in the mould in upper and lower stranding; The effect of B section is mainly pre-stranding and cuts, and provides transition for cylinder blank 21 gradually becomes the cylinder that has chamfering or fillet, and blank 21 is rubbed with the hands cuts out less chamfering or fillet; The effect of C section is mainly improves chamfering or rounded shapes.Blank 21 end surface shape gradually change in whole process, are become the blank 21 (as Fig. 7,8) of band chamfering or fillet by cylinder.
Above-mentioned stranding cutting mechanism also can be rubbed the cylinder that cuts out special shape with the hands, and as the cydariform cylinder, use has as the upper and lower stranding of " U " shape notch of Fig. 6 cuts mould, can rub the blank 21 (as Fig. 9) that cuts out the swelled column shape with the hands.
Claims (6)
1. steel ball cold heading technique is characterized in that step is:
Step 1. feed mechanism is sent bar into cutting mechanism;
Step 2. cutting mechanism becomes cylinder blank with sheared blank;
Step 3. feed mechanism is sent blank into the stranding cutting mechanism;
Step 4. is rubbed cutting mechanism with the hands the stranding of blank two ends is cut out chamfering or fillet;
Step 5. feed mechanism is sent blank into cold-heading mechanism;
Step 6. cold-heading mechanism becomes steel ball blanks with the blank cold-heading;
Step 7. material jacking mechanism ejects cold-heading mechanism with steel ball blanks.
2. according to the described steel ball cold heading technique of claim 1, it is characterized in that: the stranding cutting mechanism in the described step 4 is rubbed blank with the hands and is cut into the cydariform cylinder.
3. implement the ball cold header of the described steel ball cold heading technique of claim 1, comprise the feed mechanism between cutting mechanism, cold-heading mechanism and each mechanism, it is characterized in that: device has the stranding cutting mechanism between described cutting mechanism and the cold-heading mechanism.
4. according to the described ball cold header of claim 3, it is characterized in that: described stranding cutting mechanism is to do go up rubbing with the hands of relative motion to cut mould and rub with the hands down and cut mould, and it is respectively equipped with the shaping notch.
5. according to the described ball cold header of claim 4, it is characterized in that: described shaping notch is " Qian " shape notch, and the base angle of notch both sides is chamfering or the fillet that changes from small to big.
6. according to the described ball cold header of claim 4, it is characterized in that: described shaping notch is " U " shape notch, and the base angle of notch both sides is the fillet that changes from small to big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101922035A CN100513002C (en) | 2007-12-21 | 2007-12-21 | Steel ball cold heading technique and steel ball cold header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101922035A CN100513002C (en) | 2007-12-21 | 2007-12-21 | Steel ball cold heading technique and steel ball cold header |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101185955A CN101185955A (en) | 2008-05-28 |
| CN100513002C true CN100513002C (en) | 2009-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101922035A Expired - Fee Related CN100513002C (en) | 2007-12-21 | 2007-12-21 | Steel ball cold heading technique and steel ball cold header |
Country Status (1)
| Country | Link |
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| CN (1) | CN100513002C (en) |
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|---|---|---|---|---|
| CN103909206B (en) * | 2012-12-29 | 2016-01-13 | 宾科汽车紧固件（昆山）有限公司 | A kind of sleeve cold-heading device and cold heading technique thereof |
| CN103600013B (en) * | 2013-10-15 | 2015-08-12 | 宁波思进机械股份有限公司 | The cold-heading molding technique of ball stud with holes |
| CN104772529B (en) * | 2015-04-14 | 2017-07-28 | 佛山市高明永川机车配件制造有限公司 | A kind of chain chain lock pin automatic rubbing groove equipment |
| CN106040769A (en) * | 2016-07-22 | 2016-10-26 | 江阴东邦钢球机械有限公司 | Hydraulic steel ball forming machine |
| CN106392492B (en) * | 2016-11-23 | 2018-06-15 | 安顺市虹翼特种钢球制造有限公司 | Steel ball production and processing method |
| CN106739124B (en) * | 2016-12-09 | 2019-02-15 | 西安麦特沃金液控技术有限公司 | Crystallite copper ball Full-automatic hydraulic forming machine |
| CN107584060A (en) * | 2017-09-18 | 2018-01-16 | 广州长仁工业科技有限公司 | A kind of high-speed hydraulic ball upsetting machine |
| CN107552706A (en) * | 2017-10-12 | 2018-01-09 | 芜湖市永帆精密模具科技有限公司 | A kind of steel ball cold heading mould |
| CN107952921A (en) * | 2017-12-20 | 2018-04-24 | 博峰汽配科技有限公司 | Cotter seat cold-heading molding equipment |
| CN109000848A (en) * | 2018-10-17 | 2018-12-14 | 济南大学 | A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading |
| CN111069383B (en) * | 2019-11-22 | 2021-11-26 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
| CN112008342B (en) * | 2020-08-31 | 2021-11-19 | 西北有色金属研究院 | Preparation method of nickel-rich nickel-titanium intermetallic compound bearing ball |
| CN112792285A (en) * | 2021-01-15 | 2021-05-14 | 常熟市龙特耐磨球有限公司 | Steel ball overturning and forging device |
| CN114800117B (en) * | 2022-04-02 | 2023-07-04 | 常熟市宝丰精工钢球有限公司 | Cold heading process and device for steel ball production |
| CN115213333B (en) * | 2022-09-19 | 2023-02-28 | 常熟非凡新材股份有限公司 | A wear-resisting steel ball forges and beats device for mining machinery research and development |
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|---|---|---|---|---|
| EP0534933B1 (en) * | 1988-04-16 | 1994-01-19 | Volkswagen Aktiengesellschaft | Coupling rod for articulated fastening of a u-shaped stabilizing bar |
| CN2277306Y (en) * | 1996-11-01 | 1998-04-01 | 技隆精机制造(山东)有限公司 | Cold header |
| CN1168555C (en) * | 2002-03-09 | 2004-09-29 | 燕山大学 | Dividing tandem mill for steel ball blanks |
| CN101049665A (en) * | 2007-05-15 | 2007-10-10 | 山东东阿钢球集团有限公司 | Method for producing accurate steel balls |
-
2007
- 2007-12-21 CN CNB2007101922035A patent/CN100513002C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0534933B1 (en) * | 1988-04-16 | 1994-01-19 | Volkswagen Aktiengesellschaft | Coupling rod for articulated fastening of a u-shaped stabilizing bar |
| CN2277306Y (en) * | 1996-11-01 | 1998-04-01 | 技隆精机制造(山东)有限公司 | Cold header |
| CN1168555C (en) * | 2002-03-09 | 2004-09-29 | 燕山大学 | Dividing tandem mill for steel ball blanks |
| CN101049665A (en) * | 2007-05-15 | 2007-10-10 | 山东东阿钢球集团有限公司 | Method for producing accurate steel balls |
Non-Patent Citations (2)
| Title |
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| 无环带球坯冷镦技术探讨. 徐平，王建刚，扈炜星.轴承，第1期. 2000 |
| 无环带球坯冷镦技术探讨. 徐平，王建刚，扈炜星.轴承，第1期. 2000 * |
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| Publication number | Publication date |
|---|---|
| CN101185955A (en) | 2008-05-28 |
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Granted publication date: 20090715 Termination date: 20131221 |