CN204817527U - Extrusion mould of two key bit shanks - Google Patents
Extrusion mould of two key bit shanks Download PDFInfo
- Publication number
- CN204817527U CN204817527U CN201520612662.4U CN201520612662U CN204817527U CN 204817527 U CN204817527 U CN 204817527U CN 201520612662 U CN201520612662 U CN 201520612662U CN 204817527 U CN204817527 U CN 204817527U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- upper bolster
- mould
- annular piston
- die shoe
- 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
Links
Abstract
The utility model discloses an extrusion mould of two key bit shanks, including upper die base and corresponding die holder with it, be connected with the mould on the upper die base, be provided with the nitrogen gas jar between last mould and upper die base, the nitrogen gas jar comprises cylinder body, cylinder cap and annular piston, and the cylinder body is fixed on the upper die base, and the cylinder cap is installed on the cylinder body, is equipped with the drift seat in the cylinder body, the annular piston set up between cylinder body and drift seat and with they in close contact with, outer and the last mould fixed connection of cylinder body is stretched out to the one end of annular piston, is equipped with the pressurization drift with drift seat fixed connection in the die cavity of last mould, be connected with the lower mould on the die holder, be provided with the cushion between lower mould and die holder, be provided with the ejector pin in the cushion, the head of ejector pin seals the die cavity bottom at the lower mould. Adopt the utility model discloses the mould can not only improve production efficiency with extrusion of bit shank, makes product quality shown and promotes, simultaneously all right material saving, reduction in production cost.
Description
Technical field
The utility model relates to technical field of mold, more particularly, particularly relates to a kind of two key bit shank extrusion molding dies.
Background technology
Bit shank is mainly used in mine operation, has two keys, triple bond, quadruple linkage, six keys, eight key plurality of specifications.At present, when forging two key bit shank, traditional processing method is: first with coal reverberatory furnace, heat steel is carried out base to about 1150 DEG C, then completes processing through the complicated loaded down with trivial details operation such as preformed, final molding, trimming.Adopt this kind of method to process, have the following disadvantages: 1, heat steel be easily oxidized to when 1150 DEG C, decarburization, generate intergranular oxidation thing, thus affect product quality; 2, labor strength is large, work under bad environment, danger; 3, process flow is complicated, and equipment investment is large; 4, production cost is large, and stock utilization is low; 5, production efficiency is low.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of two key bit shank an extrusion molding dies, enhances productivity, improve the quality of products, and reduces production cost.
For achieving the above object, the technical solution adopted in the utility model is: a kind of two key bit shank extrusion molding dies, the die shoe comprising upper bolster and correspond, described upper bolster is connected with patrix, nitrogen cylinder is provided with between patrix and upper bolster, described nitrogen cylinder is by cylinder body, cylinder cap and annular piston composition, described cylinder body is bolted on upper bolster, described cylinder cap is arranged on cylinder body by bolt, punch holder is equipped with in cylinder body, described annular piston to be arranged between cylinder body and punch holder and with they close contacts, the contact surface of annular piston and cylinder body and punch holder is equipped with O-ring seal, one end of described annular piston is stretched out outside cylinder body and is fixedly connected with patrix, the pressurization drift be fixedly connected with punch holder is provided with in the die cavity of patrix, described die shoe is connected with counterdie, between counterdie and die shoe, is provided with cushion block, be provided with push rod in described cushion block, the head of described push rod is enclosed in the cavity bottom of counterdie.
When processing two key bit shank, employing the utility model mould can be once extruded by it, not only increases production efficiency, product quality is significantly improved, and can also save material simultaneously, reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-upper bolster; 11-guide pin bushing; 2-nitrogen cylinder; 21-cylinder body; 22-cylinder cap; 23-annular piston; 24-O-ring seal; 3-patrix; 4-punch holder; 5-pressurizes drift; 6-die shoe; 61-guide pillar; 7-counterdie; 8-cushion block; 9-push rod.
Detailed description of the invention
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
As shown in Figure 1, two key bit shank provided by the utility model extrusion molding dies, the die shoe 6 comprising upper bolster 1 and correspond.Described upper bolster 1 is connected with patrix 3, nitrogen cylinder 2 is provided with between patrix 3 and upper bolster 1, described nitrogen cylinder 2 is by cylinder body 21, cylinder cap 22 and annular piston 23 form, described cylinder body 21 is bolted on upper bolster 1, described cylinder cap 22 is arranged on cylinder body 21 by bolt, punch holder 4 is equipped with in cylinder body 21, described annular piston 23 to be arranged between cylinder body 21 and punch holder 4 and with they close contacts, the contact surface of annular piston 23 and cylinder body 21 and punch holder 4 is equipped with O-ring seal 24, one end of described annular piston 23 is stretched out outside cylinder body 21 and is fixedly connected with patrix 3, the pressurization drift 5 be fixedly connected with punch holder 4 is provided with in the die cavity of patrix 3.Described die shoe 6 is connected with counterdie 7, is provided with cushion block 8 between counterdie 7 and die shoe 6, be provided with push rod 9 in described cushion block 8, the head of described push rod 9 is enclosed in the cavity bottom of counterdie 7.
The utility model mould also comprises the guide pin bushing 11 and guide pillar 61 that are arranged on and play the guiding role between upper bolster 1 and die shoe 6, guide pin bushing 11 in the present embodiment is arranged on upper bolster 1, guide pillar 61 correspondence be arranged on die shoe 6, can certainly be arranged on die shoe 6 by guide pin bushing 11, guide pillar 61 is just arranged on upper bolster 1 accordingly.
When using the utility model to process two key bit shanks, bar is heated in about the 760 DEG C die cavities putting into counterdie 7, upper bolster 1 lower patrix 3 of exercising under the driving of forcing press closes with counterdie 7, the nitrogen that when forcing press continues to decline, patrix 3 promotes in annular piston 23 compressed nitrogen cylinder 2 produces powerful mould closing force, at this moment the drift 5 that pressurizes starts to extrude the bar be enclosed in mold cavity, it is made to be full of whole mold cavity, and it is shaping in die cavity, then forcing press is exercised patrix 3 to separate with counterdie 7, by push rod 9, shaping workpiece is ejected, complete processing.
Claims (3)
1. key bit shank extrusion molding dies, the die shoe comprising upper bolster and correspond, it is characterized in that: described upper bolster is connected with patrix, nitrogen cylinder is provided with between patrix and upper bolster, described nitrogen cylinder is by cylinder body, cylinder cap and annular piston composition, described cylinder body is bolted on upper bolster, described cylinder cap is arranged on cylinder body by bolt, punch holder is equipped with in cylinder body, described annular piston to be arranged between cylinder body and punch holder and with they close contacts, the contact surface of annular piston and cylinder body and punch holder is equipped with O-ring seal, one end of described annular piston is stretched out outside cylinder body and is fixedly connected with patrix, the pressurization drift be fixedly connected with punch holder is provided with in the die cavity of patrix, described die shoe is connected with counterdie, between counterdie and die shoe, is provided with cushion block, be provided with push rod in described cushion block, the head of described push rod is enclosed in the cavity bottom of counterdie.
2. mould according to claim 1, is characterized in that: also comprise the guide pin bushing and guide pillar that are arranged on and play the guiding role between upper bolster and die shoe.
3. mould according to claim 2, is characterized in that: described guide pin bushing is arranged on upper bolster or die shoe, and described guide pillar is arranged on die shoe or upper bolster accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612662.4U CN204817527U (en) | 2015-08-14 | 2015-08-14 | Extrusion mould of two key bit shanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612662.4U CN204817527U (en) | 2015-08-14 | 2015-08-14 | Extrusion mould of two key bit shanks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817527U true CN204817527U (en) | 2015-12-02 |
Family
ID=54675169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520612662.4U Expired - Fee Related CN204817527U (en) | 2015-08-14 | 2015-08-14 | Extrusion mould of two key bit shanks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817527U (en) |
-
2015
- 2015-08-14 CN CN201520612662.4U patent/CN204817527U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20170814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |