CN203401388U - Grinding rods of cold heading steel female dies for earring type bolts - Google Patents
Grinding rods of cold heading steel female dies for earring type bolts Download PDFInfo
- Publication number
- CN203401388U CN203401388U CN201320338834.4U CN201320338834U CN203401388U CN 203401388 U CN203401388 U CN 203401388U CN 201320338834 U CN201320338834 U CN 201320338834U CN 203401388 U CN203401388 U CN 203401388U
- Authority
- CN
- China
- Prior art keywords
- grinding
- abrasion
- profile
- grinding rod
- transition portion
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides the grinding rods of cold heading steel female dies for earring type bolts, which comprises a group of hole grinding rods and a group of profile grinding rods. One group of hole grinding rods is composed of four grinding rods, wherein the external diameter of the four grinding parts are reduced successively. Each grinding rod is provided with a hand-held part, a grinding part and a transition part, and the hand-held part and the grinding part are connected together by means of the transition part. The periphery of each grinding part is provided with a chip-hold groove. One group of profile grinding rods is composed of four grinding rods, wherein the external diameter of the four grinding parts are reduced successively. Each grinding rod is provided with a hand-held part, a transition part, a grinding part and a limiting part. The profile of each grinding part and the profiles of the cold heading steel female dies for earring type bolts are circular arc-shaped consistently. The hand-held part, the transition part, the grinding part and the limiting part are connected together in order. The periphery of each grinding part is provided with a chip-hold groove. According to the technical scheme of the utility model, the machining requirements on the profiles of cold heading steel female dies for earring type bolts can be satisfied by means of the grinding rods.
Description
Technical field
The utility model relates to a kind of for processing the aid of cold-forging steel former profile for earrings type bolt.
Background technology
The object of grinding is shape, the size in order to guarantee workpiece and has higher precision and higher surface smoothness, and can reach the requirement of profile, key be the design of lapping apparatus.
Earrings type bolt is the special steel former of a kind of profile with cold-forging steel former, just can realize processing earrings type bolt, so earrings type bolt is with a wide range of applications in actual production by this steel former after cold-heading processing with cold-forging steel former.And when processing earrings type bolt is used cold-forging steel former, because its termination profile is circular-arc profile, cause can not adopting conventional grinding rod in ultimate profile process, to production, bring difficulty.
Utility model content
The purpose of this utility model is to provide the grinding rod of cold-forging steel former for a kind of earrings type bolt, for meeting the profile processing request of cold-forging steel former for earrings type bolt.
The technical solution of the utility model: the grinding rod of cold-forging steel former for earrings type bolt, comprise one group of hole grinding rod and one group of profile grinding rod, wherein one group of hole grinding rod comprises the grinding rod that 4 means of abrasion outside dimensions reduce successively, each grinding rod comprises portion of the handle, means of abrasion and transition portion, portion of the handle, means of abrasion and transition portion are all cylindrical, means of abrasion and portion of the handle link together by transition portion, in the periphery of means of abrasion, are provided with chip pocket;
If the length in hole to be ground is L
1, internal diameter is d
1; If the length of the means of abrasion of grinding rod is L, the external diameter of means of abrasion is d, and the external diameter of transition portion is d
3;
The length of means of abrasion is L=L
1+ 55 mm;
The outside diameter d of the means of abrasion of 4 described grinding rods is followed successively by selects d
a, d
b, d
cand d
d, d
a=(d
1-0.03)
-0.01mm, d
b=(d
1-0.02)
-0.01mm, d
c=(d
1-0.01)
-0.01mm, d
d=d
1-0.01mm;
The outside diameter d of transition portion
3=(d
1-0.4) mm;
One group of profile grinding rod comprises the grinding rod that 4 means of abrasion sizes reduce successively, each grinding rod comprises portion of the handle, transition portion, means of abrasion and stop portion, portion of the handle, transition portion and means of abrasion are all cylindrical, the profile of stop portion and earrings type bolt are consistent by the profile of cold-forging steel former is circular-arc profile, portion of the handle, transition portion, stop portion and means of abrasion four parts link together in turn, in the periphery of means of abrasion, are provided with chip pocket;
If the internal diameter in hole to be ground is still d
1, grinding hole profile R is △ H apart from the distance of end face, and stop portion profile R is △ H ' apart from the distance of transition portion, and the external diameter of means of abrasion is d
4;
The outside diameter d of the means of abrasion of 4 grinding rods
4be followed successively by and select d
a', d
b', d
c' and d
d', d
a'=(d
1-0.03)
-0.01mm, d
b'=(d
1-0.02)
-0.01mm, d
c'=(d
1-0.01)
-0.01mm, d
d'=d
1-0.01mm;
Stop portion profile R is apart from distance △ H '=(△ H+3) mm of transition portion.
The material of described grinding rod adopts HT25-47, due to the material of grinding rod, to compare processed workpiece material soft, therefore under grinding pressure, abrasive material just can embed mill a little and not be pressed in work piece, can not only better grind workpiece surplus with this understanding, and can make grinding rod itself be difficult for being worn away.HT25-47 has the feature of wear-resisting and even tissue in addition, makes grinding rod not only be difficult for abrasion, and abrasion are uniformly, the degree of accuracy of maintenance grinding rod that therefore can be lasting.
The beneficial effects of the utility model: be used in conjunction with by hole grinding rod and profile grinding rod, can make earrings type bolt reach needed dimensional accuracy and fineness requirement with cold-forging steel former man-hour adding.
Accompanying drawing explanation
Fig. 1 is the structural representation of cold-forging steel former for earrings type bolt.
Fig. 2 is the structural representation of former fuse in Fig. 1.
Fig. 3 is the A portion enlarged diagram of Fig. 2.
Fig. 4 is the structural representation of hole grinding rod.
Fig. 5 is the structural representation of profile grinding rod.
The specific embodiment
As shown in Figure 1 to Figure 3, a kind of earrings type bolt cold-forging steel former, it consists of former fuse and ectosome, and the end of former fuse has circular arc profile R and R
1, the length in hole to be ground is L
1, internal diameter is d
1, grinding hole profile R is △ H apart from the distance of end face.
The present embodiment comprises one group of hole grinding rod and one group of profile grinding rod.
As shown in Figure 4, one group of hole grinding rod comprises the grinding rod that 4 means of abrasion 1 outside dimensions reduce successively, each grinding rod comprises portion of the handle 2, means of abrasion 1 and transition portion 3, portion of the handle 2, means of abrasion 1 and transition portion 3 are all cylindrical, means of abrasion 1 and portion of the handle 2 link together by transition portion 3, in the periphery of means of abrasion 1, are provided with chip pocket;
The length of means of abrasion 1 is L=L
1+ 55 mm;
The outside diameter d of the means of abrasion 1 of 4 described grinding rods is followed successively by selects d
a, d
b, d
cand d
d, d
a=(d
1-0.03)
-0.01mm, d
b=(d
1-0.02)
-0.01mm, d
c=(d
1-0.01)
-0.01mm, d
d=d
1-0.01mm;
The outside diameter d of transition portion 3
3=(d
1-0.4) mm;
As shown in Figure 5, one group of profile grinding rod comprises the grinding rod that 4 means of abrasion 33 sizes reduce successively, each grinding rod comprises portion of the handle 11, transition portion 44, means of abrasion 33 and stop portion 22, portion of the handle 11, transition portion 44 and means of abrasion 33 are all cylindrical, the profile of stop portion 22 and earrings type bolt are consistent by the profile of cold-forging steel former is circular-arc profile, portion of the handle 11, transition portion 44, stop portion 22 and means of abrasion 33 4 parts link together in turn, in the periphery of means of abrasion 33, are provided with chip pocket;
If the internal diameter in hole to be ground is still d
1, grinding hole profile R is △ H apart from the distance of end face, and stop portion 22 profile R are △ H ' apart from the distance of transition portion 44, and the external diameter of means of abrasion 33 is d
4;
The outside diameter d of the means of abrasion 33 of 4 grinding rods
4be followed successively by and select d
a', d
b', d
c' and d
d', d
a'=(d
1-0.03)
-0.01mm, d
b'=(d
1-0.02)
-0.01mm, d
c'=(d
1-0.01)
-0.01mm, d
d'=d
1-0.01mm;
Stop portion 22 profile R are apart from distance △ H '=(△ H+3) mm of transition portion (44).
The material of described grinding rod adopts HT25-47.
During use, first with the rough hole of hole grinding rod, stay 0.01-0.02mm, then use profile grinding rod, the size of then going forward one by one successively.Two kinds of grinding rods also can be used alternatingly.When approaching final size, by profile grinding rod essence, get last molding surface size, guarantee size and fineness requirement.
Claims (2)
1. the grinding rod of cold-forging steel former for earrings type bolt, it is characterized in that: comprise one group of hole grinding rod and one group of profile grinding rod, wherein one group of hole grinding rod comprises the grinding rod that 4 means of abrasion (1) outside dimension reduces successively, each grinding rod comprises portion of the handle (2), means of abrasion (1) and transition portion (3), portion of the handle (2), means of abrasion (1) and transition portion (3) are all cylindrical, means of abrasion (1) and portion of the handle (2) link together by transition portion (3), in the periphery of means of abrasion (1), are provided with chip pocket;
If the length in hole to be ground is L
1, internal diameter is d
1; If the length of the means of abrasion of grinding rod (1) is L, the external diameter of means of abrasion (1) is d, and the external diameter of transition portion (3) is d
3;
The length of means of abrasion (1) is L=L
1+ 55 mm;
The outside diameter d of the means of abrasion (1) of 4 described grinding rods is followed successively by selects d
a, d
b, d
cand d
d, d
a=(d
1-0.03)
-0.01mm, d
b=(d
1-0.02)
-0.01mm, d
c=(d
1-0.01)
-0.01mm, d
d=d
1-0.01mm;
The outside diameter d of transition portion (3)
3=(d
1-0.4) mm;
One group of profile grinding rod comprises the grinding rod that 4 means of abrasion (33) size reduces successively, each grinding rod comprises portion of the handle (11), transition portion (44), means of abrasion (33) and stop portion (22), portion of the handle (11), transition portion (44) and means of abrasion (33) are all cylindrical, the profile of stop portion (22) and earrings type bolt are consistent by the profile of cold-forging steel former is circular-arc profile, portion of the handle (11), transition portion (44), stop portion (22) and means of abrasion (33) four parts link together in turn, periphery at means of abrasion (33) is provided with chip pocket,
If the internal diameter in hole to be ground is still d
1, grinding hole profile R is △ H apart from the distance of end face, and stop portion (22) profile R is △ H ' apart from the distance of transition portion (44), and the external diameter of means of abrasion (33) is d
4;
The outside diameter d of the means of abrasion (33) of 4 grinding rods
4be followed successively by and select d
a', d
b', d
c' and d
d', d
a'=(d
1-0.03)
-0.01mm, d
b'=(d
1-0.02)
-0.01mm, d
c'=(d
1-0.01)
-0.01mm, d
d'=d
1-0.01mm;
Stop portion (22) profile R is apart from distance △ H '=(△ H+3) mm of transition portion (44).
2. the grinding rod of cold-forging steel former for earrings type bolt as claimed in claim 1, is characterized in that: the material of described grinding rod adopts HT25-47.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338834.4U CN203401388U (en) | 2013-06-14 | 2013-06-14 | Grinding rods of cold heading steel female dies for earring type bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338834.4U CN203401388U (en) | 2013-06-14 | 2013-06-14 | Grinding rods of cold heading steel female dies for earring type bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203401388U true CN203401388U (en) | 2014-01-22 |
Family
ID=49937331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320338834.4U Withdrawn - After Issue CN203401388U (en) | 2013-06-14 | 2013-06-14 | Grinding rods of cold heading steel female dies for earring type bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203401388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273416A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Grinding rods of cold heading steel cavity dies for earring type bolts and application thereof |
| CN109732274A (en) * | 2018-11-16 | 2019-05-10 | 中国航发西安动力控制科技有限公司 | The processing method of bushing aperture sealing edge with hard brittleness film layer |
-
2013
- 2013-06-14 CN CN201320338834.4U patent/CN203401388U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273416A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Grinding rods of cold heading steel cavity dies for earring type bolts and application thereof |
| CN109732274A (en) * | 2018-11-16 | 2019-05-10 | 中国航发西安动力控制科技有限公司 | The processing method of bushing aperture sealing edge with hard brittleness film layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140122 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |