CN202185553U - Protective device for material ejecting rod of cold heading machine - Google Patents
Protective device for material ejecting rod of cold heading machine Download PDFInfo
- Publication number
- CN202185553U CN202185553U CN2011202561943U CN201120256194U CN202185553U CN 202185553 U CN202185553 U CN 202185553U CN 2011202561943 U CN2011202561943 U CN 2011202561943U CN 201120256194 U CN201120256194 U CN 201120256194U CN 202185553 U CN202185553 U CN 202185553U
- Authority
- CN
- China
- Prior art keywords
- liftout rod
- protective device
- liftout
- main body
- protective sleeve
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a protective device for the material bar of a cold heading machine, which comprises a material ejecting rod and a protective sleeve for the pre-material bar. The center of the protective sleeve is provided with long and round holes which cooperate with the pre-material rod; the protective sleeve further comprises a head part and a main body; the main body is provided with a groove in the axial direction of the main body, which crosses through the whole main body. The outer surface of the main body is coated with a clamping sleeve, which has the advantages of enabling the pre-material bar not to break easily, to work safely and effectively while costing less when producing super-long specified bolts.
Description
Technical field
The utility model relates to the cold headers technical field, relates in particular to a kind of cold headers liftout rod protective device.
Background technology
Cold headers are at room temperature the equipment of the forging and molding of the top overstriking of bar or wire rod, and cold headers are mainly used in parts such as making bolt, screw.Adopt the method for cold-heading that the head of bolt, screw is upset out; Then can fewly as far as possible cut or not cut, and then be directly formed to the shape and size that people want, not only save lot of materials; And increase substantially production efficiency, significantly improve the mechanical strength of the part of upsetting out.In the prior art; Mostly adopt a mould two towards cold headers with add punch press and combine to make the outer-hexagonal bolt;, it is taken utilize edger to cut out on the punch press to go machining screw again after the outer-hexagonal head comes then towards upset out the blank of the big oval head of band (its thickness and finished product outer-hexagonal first appearance thick) of cold headers with a mould two.The problem of its existence is: as shown in Figure 1, and the general long 250mm that is of the straight-bar mould of common cold headers, 140 mm that can only upset out are with interior bolt; When the bolt more than cold-heading 140 mm, screw rod 1 length is long more, and it is long more that liftout rod 2 exposes the outer length of straight-bar mould; When punching press, when the huge impulse force that is conducted is added to the liftout rod, very easily cause the fracture of liftout rod; Cause die assembly to damage simultaneously, cause unnecessary loss, changing the liftout rod wastes time and energy again; Efficient is low, and cost is high, has a strong impact on the normal process production of product.
Summary of the invention
It is not enough be to solve prior art, and it is a kind of simple in structure that the utility model provides, and easy fracture, safety, efficient are not high for the liftout rod during bolt one-shot forming of producing over-long specification, the cold headers liftout rod protective device that cost is low.
The utility model adopts following technical scheme: cold headers liftout rod protective device; Comprise the liftout rod, it is characterized in that: it also includes liftout rod protective sleeve, and the center of described liftout rod protective sleeve is provided with slotted hole; Described slotted hole matches with the liftout rod; Described liftout rod protective sleeve comprises head and body, described body axially on have groove through whole body, the outer surface of described body is provided with retaining sleeve.
Be provided with guard circle with the approaching position of head on the outer surface of described body.
The end of described body is provided with tubular casing.
The utility model cold headers liftout rod protective device is provided with liftout rod protective sleeve outside the liftout rod; Huge impulse force to the liftout rod when making processing than stay bolt is dispersed to liftout rod protective sleeve; The liftout rod is easy fracture not, makes the purpose that bolt cold-heading processing has reached efficient, energy-conservation, product quality is high of over-long specification.
The advantage of the utility model cold headers liftout rod protective device is: easy fracture, safety, efficient are not high for the liftout rod during bolt one-shot forming of producing over-long specification, and cost is low.
Description of drawings
Fig. 1 is the prior art sketch map.
Fig. 2 is the structural representation of the utility model.
Fig. 3 looks enlarged drawing for the right side of Fig. 2.
Sequence number among the figure: 1, screw rod; 2, liftout rod; 3, liftout rod protective sleeve; 4, head; 5, body; 6, slotted hole; 7, groove; 8, retaining sleeve; 9, guard circle; 10, tubular casing.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.
According to Fig. 2, shown in Figure 3, the utility model cold headers liftout rod protective device comprises liftout rod 2; It also includes liftout rod protective sleeve 3; The center of described liftout rod protective sleeve 3 is provided with slotted hole 6, and described slotted hole 6 matches with liftout rod 2, and described liftout rod protective sleeve 3 comprises head 4 and body 5; Described body 5 axially on have groove 7 through whole body 5, the outer surface of described body 5 is provided with retaining sleeve 8; Be provided with guard circle 9 with head 4 approaching positions on the outer surface of described body 5; The end of described body 5 is provided with tubular casing 10.
During the work of the utility model cold headers liftout rod protective device; The head 4 of liftout rod 2 from liftout rod protective sleeve 3 inserted in the slotted hole 6,, calculate and regulate the length that the liftout rod exposes head 4 according to the length of the bolt of being upset out; Retaining sleeve 8 is placed on the body 5; Since body 5 axially on have groove 7 through whole body 5, when retaining sleeve 8 was placed on the certain position of body 5, body 5 was firmly fixing with liftout rod 2; On the outer surface of body 5, be provided with guard circle 9, can prevent that body 5 from splitting with head 4 approaching positions; The end of described body 5 is provided with tubular casing 10, when punching press, a good forced section can be provided.
Processing can directly not be added to the liftout rod to the huge impulse force of liftout rod during than stay bolt, but is dispersed to liftout rod protective sleeve, thereby can not cause the fracture of liftout rod, can safe for a long time normal process product.Use the utility model cold headers liftout rod protective device, let length be the common cold headers of 250mm straight-bar mould, the longest bolt of 230mm that is of can only upsetting out.
The material of the utility model cold headers liftout rod protective device is chromium 12 molybdenum-vanadium steels.
More than specified the embodiment of the utility model, but this instance of just lifting for the ease of understanding should not be considered to be the restriction to the utility model scope.Equally; Any person of ordinary skill in the field all can be according to the technical scheme of the utility model and the description of preferred embodiment thereof; Make various possible being equal to and change or replacement, but all these changes or replacement all should belong to the protection domain of the utility model claim.
Claims (3)
1. cold headers liftout rod protective device; Comprise liftout rod ⑵, it is characterized in that: it also includes liftout rod protective sleeve ⑶, and the center of described liftout rod protective sleeve ⑶ is provided with slotted hole ⑹; Described slotted hole ⑹ matches with liftout rod ⑵; Described liftout rod protective sleeve ⑶ comprises head ⑷ and body ⑸, has the groove ⑺ through whole body ⑸ on described body ⑸ axial, and the outer surface of described body ⑸ is provided with retaining sleeve ⑻.
2. cold headers liftout rod protective device according to claim 1 is characterized in that: be provided with guard circle ⑼ with the approaching position of head ⑷ on the outer surface of described body ⑸.
3. cold headers liftout rod protective device according to claim 1, it is characterized in that: the end of described body ⑸ is provided with tubular casing ⑽.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202561943U CN202185553U (en) | 2011-07-20 | 2011-07-20 | Protective device for material ejecting rod of cold heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202561943U CN202185553U (en) | 2011-07-20 | 2011-07-20 | Protective device for material ejecting rod of cold heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202185553U true CN202185553U (en) | 2012-04-11 |
Family
ID=45917026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202561943U Expired - Fee Related CN202185553U (en) | 2011-07-20 | 2011-07-20 | Protective device for material ejecting rod of cold heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202185553U (en) |
-
2011
- 2011-07-20 CN CN2011202561943U patent/CN202185553U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20130720 |