CN206335103U - A kind of structure for preventing mould plunger tip bar from rotating - Google Patents

A kind of structure for preventing mould plunger tip bar from rotating Download PDF

Info

Publication number
CN206335103U
CN206335103U CN201621480837.1U CN201621480837U CN206335103U CN 206335103 U CN206335103 U CN 206335103U CN 201621480837 U CN201621480837 U CN 201621480837U CN 206335103 U CN206335103 U CN 206335103U
Authority
CN
China
Prior art keywords
plunger tip
lower plunger
tip bar
bar
deep gouge
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.)
Active
Application number
CN201621480837.1U
Other languages
Chinese (zh)
Inventor
宁科明
马武彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Yuchai Machinery Co Ltd
Original Assignee
Guangxi Yuchai Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangxi Yuchai Machinery Co Ltd filed Critical Guangxi Yuchai Machinery Co Ltd
Priority to CN201621480837.1U priority Critical patent/CN206335103U/en
Application granted granted Critical
Publication of CN206335103U publication Critical patent/CN206335103U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of structure for preventing mould plunger tip bar from rotating, including lower plunger tip plate and through the lower plunger tip bar in lower plunger tip plate, described lower plunger tip bar includes the limiting section of ejection part and protrusion the plunger tip bar axial displacement under the limitation below the ejection part of ejection core, described lower plunger tip plate is provided with the mounting hole being adapted with ejection part, it is provided with one end of the mounting hole and its arranged off-centre and the long deep gouge of limiting section can be accommodated, the limiting section outer rim of the lower plunger tip bar is provided with the confined planes for preventing that lower plunger tip bar from rotating that are used for that radially extends and can be brought into close contact with the side of long deep gouge along the lower plunger tip bar;Dismountable be provided with can be by lower plunger tip rod locking in the pressing plate in lower plunger tip plate below described lower plunger tip plate.The utility model is simple in construction, easy to make, low cost, and the purpose of rotation stop is reached by setting single confined planes and the long deep gouge side of lower plunger tip plate to coordinate on lower plunger tip bar, the machined surface of lower plunger tip bar is reduced.

Description

A kind of structure for preventing mould plunger tip bar from rotating
Technical field
The utility model is related to technology of die manufacturing field, more specifically, it relates to which one kind prevents that mould plunger tip bar from turning Dynamic structure.
Background technology
During the casting die of part, mould is to eject core, product shape by lower plunger tip bar when manufacturing core The lower plunger tip rod end surface retinue of shape requirement is smooth with the core surface for ensureing Making mold, meets the requirement of casting quality, therefore, Needing to ask lower plunger tip bar on mould structure can not rotate.The rotation stop mode of plunger tip bar is taken in lower plunger tip bar substantially under current mould A upper block pressur plate of installing blocks to reach the purpose for preventing rotating, but this mode has fit clearance excessive, rotation stop effect Bad the problem of, also, easily fall into the grains of sand in use and cause plunger tip bar stuck, so that cause plunger tip bar to damage, shadow Ring production.
Utility model content
The technical problems to be solved in the utility model be for the above-mentioned not enough there is provided one kind is simple in construction of prior art, Structure easy to make, can effectively preventing mould plunger tip bar from rotating.
The technical solution of the utility model is such:A kind of structure for preventing mould plunger tip bar from rotating, including lower plunger tip Plate and through the lower plunger tip bar in lower plunger tip plate, the ejection part and protrusion that described lower plunger tip bar includes ejection core are located at the top Go out the limiting section of plunger tip bar axial displacement under the limitation at subordinate end, described lower plunger tip plate is provided with mutually fits with the ejection part The mounting hole matched somebody with somebody, is provided with one end of the mounting hole and its arranged off-centre and can accommodate the long deep gouge of the limiting section, it is described under The limiting section outer rim of plunger tip bar is provided with the use that radially extends and can be brought into close contact with the side of the long deep gouge along the lower plunger tip bar In the confined planes for preventing that lower plunger tip bar from rotating;Dismountable be provided with can be by the lower plunger tip rod locking below described lower plunger tip plate Pressing plate in lower plunger tip plate.
As further improving, described long deep gouge is in arc-shaped, the long waist shaped deep gouge of middle flat for two ends, and And, a side of middle flat and the surface of revolution of the mounting hole are tangent on the long waist shaped deep gouge.
Further, described confined planes are and tangent horizontally disposed flat of the external diameter of the ejection part of the lower plunger tip bar Face.
Further, the depth of the long deep gouge and the thickness of the limiting section of the lower plunger tip bar are adapted, also, described It is interference fit between the side of the confined planes of lower plunger tip bar and the long deep gouge.
Further, described ejection part and limiting section are coaxially arranged integral structure.
Beneficial effect
The utility model compared with prior art, has the following advantages that:
1st, the utility model by setting confined planes on lower plunger tip bar and sets long counterbore on lower plunger tip plate, makes spacing Face is brought into close contact with the side of long deep gouge to reach the purpose for preventing that lower plunger tip bar from rotating, and is solved lower plunger tip bar and is made because of rotation Into casting accuracy it is low the problem of;
2nd, the utility model by pressing plate by lower plunger tip rod locking on lower plunger tip plate, can both facilitate the replacing of part, again Gap coordinates excessive and causes the problem of lower plunger tip bar is stuck between part can be solved, and effectively increases production efficiency;
3rd, the utility model in lower plunger tip bar by setting single confined planes, and setting one and lower top on lower plunger tip plate The long deep gouge of core bar mounting hole arranged off-centre, is coordinated by the single side face of confined planes and long deep gouge and rotation stop can be achieved, reduced The machined surface of lower plunger tip bar, improves the quality of fit between part, effectively reduces production cost.
Brief description of the drawings
Fig. 1 is assembling part section structural representation of the present utility model;
Fig. 2 is lower plunger tip plate and the fragmentary bottom structure enlarged diagram of lower plunger tip bar cooperation in the utility model;
Fig. 3 is the front view of lower plunger tip bar in the utility model;
Fig. 4 is the upward view of lower plunger tip bar in the utility model;
Fig. 5 is the cross-sectional view of lower plunger tip plate in the utility model.
Wherein:Plunger tip bar, 3- pressing plates, 4- fastening bolts, 11- mounting holes, the long deep gouges of 12-, 13- under plunger tip plate, 2- under 1- Screwed hole, 21- ejection parts, 22- limiting sections, 23- confined planes.
Embodiment
Specific embodiment in below in conjunction with the accompanying drawings is described further to the utility model.
Refering to Fig. 1-5, a kind of structure for preventing mould plunger tip bar from rotating of the present utility model, including lower plunger tip plate 1 and wear The lower plunger tip bar 2 crossed down in plunger tip plate 1, the lower plunger tip bar 2 is the structure of T-shaped, includes the ejection part 21 and protrusion of ejection core The limiting section 22 of the axial displacement of plunger tip bar 2 under the limitation of the lower end of ejection part 21, its ejection part 21 and limiting section 22 are Coaxially arranged integral structure, can improve the reliability of lower plunger tip bar 2, so that it is guaranteed that the precision of lower plunger tip bar 2, in lower plunger tip Plate 1 is provided with the mounting hole 11 being adapted with the diameter of ejection part 21, it is preferred that be between the ejection part 21 and mounting hole 11 It is full of cooperation, prevents that lower plunger tip bar 2 from loosening, improves the reliability of lower plunger tip bar 2, be provided with and its eccentric cloth in one end of mounting hole 11 Put and the long deep gouge 12 of limiting section 22 can be accommodated, accordingly, be provided with the outer rim of limiting section 22 of lower plunger tip bar 2 along the lower plunger tip bar 2 confined planes 23 for preventing the lower rotation of plunger tip bar 2 that radially extends and can be brought into close contact with the side of long deep gouge 12, pass through limit Plane 23 coordinates the effect for reaching rotation stop with the side of long deep gouge 12;Removably being provided with the lower section of lower plunger tip plate 1 can be by under Plunger tip bar 2 lock onto the pressing plate 3 in lower plunger tip plate 1, can prevent that lower plunger tip bar 2 from departing from lower plunger tip plate 1, be set on lower plunger tip plate 1 There are a pair of screwed holes 13, pressing plate 3 can be quickly connected on lower plunger tip plate 1 by a pair of fastening bolts 4, reach quick-replaceable part Purpose.Lower plunger tip bar 2 is locked on lower plunger tip plate 1 by the utility model by pressing plate 3, and is sunk by confined planes 23 with long The side of groove 12 coordinates the effect for reaching rotation stop, can both facilitate the replacing of part, and gap coordinates excessive between also solving the problem that part And cause the problem of lower plunger tip bar 2 is stuck, effectively increase production efficiency, at the same solve lower plunger tip bar 2 because of rotation and caused by The problem of casting accuracy is low.
Long deep gouge 12 in the above-described embodiments is that two ends are in arc-shaped, the long waist shaped deep gouge of middle flat, also, the length A side of middle flat and the surface of revolution of mounting hole 11 are tangent on kidney-shaped deep gouge, accordingly, the confined planes 23 of lower plunger tip bar 2 For the horizontally disposed plane tangent with the external diameter of the ejection part 21 of lower plunger tip bar 2, also, the confined planes 23 of lower plunger tip bar 2 with It is interference fit between the side of long deep gouge 12, it is ensured that the side of the confined planes 23 of lower plunger tip bar 2 and the long deep gouge 12 of lower plunger tip plate 1 Face is brought into close contact, and improves the quality of fit between each part, prevents that micro rotation from occurring in lower plunger tip bar 2;Its long deep gouge 12 Depth and the thickness of the limiting section 22 of lower plunger tip bar 2 are adapted, it is ensured that pressing plate 3 can withstand the limiting section 22 of lower plunger tip bar 2, prevent Plunger tip bar 2 is only descended to occur axial displacement.The utility model by the limiting section 22 of lower plunger tip bar 2 set single confined planes 23 with The single side progress of long deep gouge 12 on lower plunger tip plate 1 is spacing, reduces the machined surface of lower plunger tip bar 2, is reaching rotation stop mesh While, reduce labor intensity and production cost.
Above-described is only preferred embodiment of the present utility model, it should be pointed out that come for those skilled in the art Say, on the premise of the utility model structure is not departed from, several modifications and improvements can also be made, these are all without this reality of influence With the effect and practical applicability of new implementation.

Claims (5)

1. a kind of structure for preventing mould plunger tip bar from rotating, including lower plunger tip plate (1) and the lower plunger tip bar through lower plunger tip plate (1) (2), it is characterised in that the ejection part (21) and protrusion that described lower plunger tip bar (2) includes ejection core are located at the ejection part (21) under the limitation of lower end plunger tip bar (2) axial displacement limiting section (22), described lower plunger tip plate (1) be provided with it is described The mounting hole (11) that ejection part (21) is adapted, is provided with its arranged off-centre and described in can accommodating in one end of the mounting hole (11) The long deep gouge (12) of limiting section (22), limiting section (22) outer rim of the lower plunger tip bar (2) is provided with along the lower plunger tip bar (2) radially What is extended and can be brought into close contact with the side of the long deep gouge (12) is used for the confined planes (23) for preventing that lower plunger tip bar (2) from rotating; The lower plunger tip bar (2) can lock onto the pressing plate in lower plunger tip plate (1) by dismountable be provided with below described lower plunger tip plate (1) (3)。
2. a kind of structure for preventing mould plunger tip bar from rotating according to claim 1, it is characterised in that described long deep gouge (12) it is a side of the two ends in middle flat on arc-shaped, the long waist shaped deep gouge of middle flat, also, the long waist shaped deep gouge The surface of revolution with the mounting hole (11) is tangent.
3. a kind of structure for preventing mould plunger tip bar from rotating according to claim 1, it is characterised in that described confined planes (23) it is the horizontally disposed plane tangent with the external diameter of the ejection part (21) of the lower plunger tip bar (2).
4. a kind of structure for preventing mould plunger tip bar from rotating according to any one in claim 1-3, it is characterised in that The depth of the long deep gouge (12) and the thickness of the limiting section (22) of the lower plunger tip bar (2) are adapted, also, the lower plunger tip It is interference fit between the confined planes (23) of bar (2) and the side of the long deep gouge (12).
5. a kind of structure for preventing mould plunger tip bar from rotating according to claim 4, it is characterised in that described ejection part (21) and limiting section (22) be coaxially arranged integral structure.
CN201621480837.1U 2016-12-30 2016-12-30 A kind of structure for preventing mould plunger tip bar from rotating Active CN206335103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621480837.1U CN206335103U (en) 2016-12-30 2016-12-30 A kind of structure for preventing mould plunger tip bar from rotating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621480837.1U CN206335103U (en) 2016-12-30 2016-12-30 A kind of structure for preventing mould plunger tip bar from rotating

Publications (1)

Publication Number Publication Date
CN206335103U true CN206335103U (en) 2017-07-18

Family

ID=59304170

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621480837.1U Active CN206335103U (en) 2016-12-30 2016-12-30 A kind of structure for preventing mould plunger tip bar from rotating

Country Status (1)

Country Link
CN (1) CN206335103U (en)

Similar Documents

Publication Publication Date Title
CN206643354U (en) A kind of sectional die
CN204294729U (en) A kind of porcupine die of drift able to quickly change
CN206335103U (en) A kind of structure for preventing mould plunger tip bar from rotating
CN204052911U (en) For the mould of sintered diamond
CN203418081U (en) Wax injecting die structure
CN205629296U (en) Sand -shooting mechanism
CN204736112U (en) Emery wheel forming die
CN207900936U (en) A kind of wolfram steel punch polishing rotary-grinding head
CN205927113U (en) A powder metallurgy rotor for becoming arrange metering rod pump
CN203992383U (en) A kind of powder compaction drift
CN204976960U (en) Compound moldenpress die of ceramet
CN105537584B (en) Alloy tup, the mold and method for preparing alloy tup
CN215541867U (en) Hard alloy fracturing nozzle
CN208615166U (en) A kind of resin diamond grinding wheel unloads die craft equipment
CN204913188U (en) Novel holder before boring head
CN203438091U (en) Segment forming die of sector grinding wheel and die sleeve thereof
CN205763846U (en) A kind of eccentric permanent magnetism mould
CN203565773U (en) Scraper plate mechanism of membrane coated sand mixer
CN102785306A (en) One-time molding vulcanizing mold of injection-compression type connector-free rubber belt track
CN207463844U (en) A kind of reduced pipe centrifugal moulding mould
CN206464522U (en) Bore section centrifugal casting mould
CN204842857U (en) Casting sand mould structure of large -scale box
CN205677873U (en) Ceramic impeller locking device
CN207825149U (en) A kind of easily demoulding detachable concrete experimental block mould
CN211612946U (en) High-impact wear-resistant lining plate of semi-autogenous mill

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant