CN201908929U - Unloading bolt - Google Patents
Unloading bolt Download PDFInfo
- Publication number
- CN201908929U CN201908929U CN2010206824784U CN201020682478U CN201908929U CN 201908929 U CN201908929 U CN 201908929U CN 2010206824784 U CN2010206824784 U CN 2010206824784U CN 201020682478 U CN201020682478 U CN 201020682478U CN 201908929 U CN201908929 U CN 201908929U
- Authority
- CN
- China
- Prior art keywords
- screw
- contour sleeve
- bolt
- discharging
- hexagon socket
- 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 - Lifetime
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Abstract
The utility model discloses a novel unloading bolt and aims at providing a novel unloading bolt which is convenient for machining, loading and unloading and used for improving the quality of products and the service life of dies. The unloading bolt comprises an equal-height sleeve and an inner hexagonal bolt, wherein the edge of one end of the equal-height sleeve extends outwards to form a spacing ring; the outer diameter of the spacing ring is larger than the diameter of the head of the inner hexagonal bolt; and the equal-height sleeve is shorter than the inner hexagonal bolt. In the unloading bolt, an original integrated unloading bolt is replaced by the novel unloading bolt which is formed by combining the inner hexagonal bolt and the equal-height sleeve so that the machining process is simpler, the production cost is reduced, the bolt is more wear resistant, the product quality is improved and the service life of the dies is prolonged.
Description
Technical field
The utility model relates to a kind of press tool part, the discharging screw that particularly a kind of fit forms.
Background technique
Along with the progress of the development of society, science and technology has proposed more and more higher requirement to press tool, as: the stampings quality is good, ram efficiency is high, mould is with requirements such as the life-span are long.For this reason, traditional structure can not satisfy high quality, high efficiency, requirement cheaply fully.
As shown in Figure 3, traditional discharging screw is made up of screw body 8, screw head 9 and the connecting end 7 that is used for being threaded with unloading board.In use, the discharging screw is threaded fixing with unloading board, and fit strip, spring and die holder, and mould is in off working state, under the effect of spring, with the flat upper surface to punch of unloading board holder, so that hold up the blank material.Descending mould with the lathe slide block during work is started working, and unloading board is descending thereupon; Behind the end-of-job, the lathe slide block rises thereupon, unloading board goes upward to the upper surface of punch under the effect of spring, thereby the blank material that punching press is good ejects, discharging this moment screw also will be up with unloading board, line height is guaranteed by the physical dimension of discharging screw on it, and last line height depends on the distance of discharging screw head bottom surface to the lower bolster bottom surface, and bolt head then plays position-limiting action.In practical operation, the discharging screw will be constantly up and descending, continuous and the lower bolster collision of screw head, thereby easily cause screw head to damage, and existing discharging screw is structure as a whole, if screw head damages and will change whole discharging screw, and the discharging screw is common and the stamping die pairing is produced, required precision is higher, the processing technology complexity, and this just causes difficulty to its replacing and debugging.
Summary of the invention
The purpose of this utility model is the problem at discharging screw processing technology complexity, replacing and debug difficulties in the prior art, provides a kind of and is convenient to process, convenient assembling and disassembling and improving the quality of products and the discharging screw in working life of mould.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of discharging screw, comprise the discharging screw body, described discharging screw body comprises hexagon socket head cap screw and the contour sleeve that is linked on the hexagon socket head cap screw screw rod, one end margin of described contour sleeve outwards protrudes the formation limited ring, the external diameter of described contour sleeve limited ring is greater than the diameter of hexagon socket head cap screw head, and described contour length sleeve is less than the length of hexagon socket head cap screw screw rod.The utility model separates the discharging screw of one in the prior art, is made up of hexagon socket head cap screw and contour sleeve.Hexagon socket head cap screw is a standard piece, can choose as required, thereby reduce manufacturing procedure, reduce cost; Contour jacket casing is combined on the hexagon socket head cap screw screw rod, and limited ring at one end is set, and has replaced the effect of the head of existing discharging screw, has so made things convenient for the replacing of contour sleeve.The external diameter of contour sleeve limited ring is protected bolt head greater than the diameter of hexagon socket head cap screw head.Contour length sleeve is less than the length of hexagon socket head cap screw screw rod, makes the bottom of hex head bolt screw rod stretch out contour sleeve and exposes screw thread, is used for connecting.
As preferably, described limited ring and contour sleeve centerline are perpendicular.When limited ring and lower bolster came in contact, the whole end face of the limited ring that this moment and contour sleeve centerline are vertical contacted with lower bolster, has increased area of contact, makes limited ring more wear-resisting.
As preferably, described contour sleeve is for being made by alloyed steel and the contour sleeve of steel through quenching.The alloyed steel of high strength, high abrasion is more suitable for the material as contour sleeve, so that contour sleeve is more durable.
As preferably, the hardness of described contour sleeve is HRC48～HRC52.Suitable hardness, using effect is better.
As preferably, the internal diameter of described contour sleeve is than the big 0.5mm～1mm of diameter of described hexagon socket head cap screw screw rod.The cooperation of contour sleeve and hexagon socket head cap screw is pine and too tight too, so all can influence precision, and suitable cooperation can reach higher precision.
The utility model will be replaced the discharging screw of original integral type by the discharging screw that hexagon socket head cap screw and contour sleeve fit form, make its processing technology simple more, reduce cost of production, more wear-resisting, the working life of having improved quality of product and mould.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structural representation in use;
Fig. 3 is a stripper bolt structural representation in the prior art.
Among the figure: 1, hexagon socket head cap screw, 2, contour sleeve, 3, the hexagon socket head cap screw head, 4, hexagon socket head cap screw screw rod, 5, limited ring, 6, contour sleeve centerline, 7, connecting end, 8, screw body, 9, screw head, 10, discharging screw, 11, spring, 12, unloading board, 13, punch, 14, blank material, 15, lower bolster, 16, die set.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of discharging screw, as shown in Figure 1, constitute by hexagon socket head cap screw 1 and contour sleeve 2, contour sleeve 2 is linked on the hexagon socket head cap screw screw rod 4, contour sleeve 2 is a long cylinder empty in, the external diameter of contour sleeve 2 limited rings 5 is greater than the diameter of hexagon socket head cap screw head 3, and contour sleeve 2 right sides are outwards protruded and formed limited ring 5, and limited ring 5 and contour sleeve centerline 6 are perpendicular.It is fashionable to overlap, and limited ring 5 end faces contact with the bottom surface of hexagon socket head cap screw head 3, and the length of contour sleeve 2 is less than hexagon socket head cap screw screw rod 4 length, so that a part of screw thread on the screw rod exposes.Contour sleeve 2 is made by alloyed steel, and hardness is HRC52, and contour sleeve 2 also can be made by middle-carbon steel.Hexagon socket head cap screw 1 is common standard piece, can choose as required, and the while is according to the size and the size Selection hexagon socket head cap screw of contour sleeve.The internal diameter of contour sleeve 2 is than the big 0.5～1mm of diameter of hexagon socket head cap screw screw rod 4.
As shown in Figure 1 and Figure 2, during use, discharging screw 10 passes lower bolster 15 and is threaded with unloading board 12 from die set 16, and screwing length is 1.8 times of hexagon socket head cap screw screw rod 4 diameters in the discharging screw 10, and contour sleeve 2 upper-end surfaces contact with unloading board 12 bottom surfaces.Press tool is when off working state, because the effect of spring 11, unloading board 12 will upwards hold up.This moment, the discharging screw was under the effect of spring, in running order picking-up blank material 14.During work, the lathe slide block presses down, and unloading board 12 moves down thereupon, and unloading board 12 drive discharging screws 10 move down simultaneously, contact with lower bolster 15 until unloading board 12; Behind the end-of-job, the lathe slide block rises, unloading board 12 rises thereupon under the effect of spring 11, discharging this moment screw 10 also will be with moving on the unloading board 12, limited ring 5 until contour sleeve 2 contacts with lower bolster 15 lower surfaces, unloading board 12 is static, thereby punching press is finished, and blank material 14 ejects from punch 13.
Claims (6)
1. discharging screw, comprise the discharging screw body, it is characterized in that, described discharging screw body comprises hexagon socket head cap screw (1) and is linked in contour sleeve (2) on the hexagon socket head cap screw (4), described contour sleeve (2) one end margins outwards protrude and form limited ring (5), the external diameter of described limited ring (5) is greater than the diameter of hexagon socket head cap screw head (3), and described contour sleeve (2) length is less than the length of hexagon socket head cap screw screw rod (4).
2. discharging screw according to claim 1 is characterized in that, described limited ring (5) is perpendicular with contour sleeve centerline (6).
3. discharging screw according to claim 1 is characterized in that, described contour sleeve (2) is the contour sleeve of being made by alloyed steel or middle-carbon steel and process is quenched of steel.
4. according to claim 1 or 2 or 3 described discharging screws, it is characterized in that described contour sleeve (2) is that hardness is at the contour sleeve of the steel of HRC48～HRC52.
5. according to claim 1 or 2 or 3 described discharging screws, it is characterized in that the internal diameter of described contour sleeve (2) is than the big 0.5mm～1mm of diameter of described hexagon socket head cap screw screw rod (4).
6. discharging screw according to claim 4 is characterized in that, the internal diameter of described contour sleeve (2) is than the big 0.5mm～1mm of diameter of described hexagon socket head cap screw screw rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206824784U CN201908929U (en) | 2010-12-23 | 2010-12-23 | Unloading bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206824784U CN201908929U (en) | 2010-12-23 | 2010-12-23 | Unloading bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908929U true CN201908929U (en) | 2011-07-27 |
Family
ID=44301132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206824784U Expired - Lifetime CN201908929U (en) | 2010-12-23 | 2010-12-23 | Unloading bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908929U (en) |
-
2010
- 2010-12-23 CN CN2010206824784U patent/CN201908929U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |