CN206426352U - A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling - Google Patents

A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling Download PDF

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Publication number
CN206426352U
CN206426352U CN201621377014.6U CN201621377014U CN206426352U CN 206426352 U CN206426352 U CN 206426352U CN 201621377014 U CN201621377014 U CN 201621377014U CN 206426352 U CN206426352 U CN 206426352U
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China
Prior art keywords
sealing
asessory shaft
core axle
positioning core
hole
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CN201621377014.6U
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Chinese (zh)
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陈树德
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JINAN FIRST MACHINE TOOL GROUP CO Ltd
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JINAN FIRST MACHINE TOOL GROUP CO Ltd
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Abstract

A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling, positioning core axle is slender axles, the through hole corresponding matching of the outer circumference surface of positioning core axle and workpiece to be added;One end of positioning core axle is provided with the first cascaded surface, and the first cascaded surface acts against the end face of workpiece to be added, and both are fixedly connected by trip bolt;The other end end of positioning core axle is provided with seal disc, and seal disc is fixedly connected by trip bolt with the other end of workpiece to be added;Intrinsic sealing asessory shaft is filled in arcuate socket, it is curved surface that asessory shaft, which is sealed, with the face that positioning core axle coordinates, sealing asessory shaft includes the first sealing asessory shaft and the second sealing asessory shaft, and the first sealing asessory shaft and the second sealing asessory shaft are inserted and secured in arcuate socket from the two ends of arcuate socket respectively.Pass through the application of this set frock, it is ensured that the smooth implementation of Shooting Technique, farthest ensure that the design accuracy requirement of workpiece, greatly reduce difficulty of processing, reduce production cost, bring good economic benefit.

Description

A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling
Technical field
The utility model is related to the processing technique field in accurate crucial hole, more particularly to a kind of numerically controlled lathe tailstock housing essence Close hole injection special tooling.
Background technology
With the development of China NC Machine, many demands of lathe user, Xian Ge lathes producer pair are preferably adapted to The design production of large-scale, relatively large high-precision numerical control lathe is more and more.At present, for draw ratio be more than 20 slender axles plus Work, easily produces vibration during processing, this just proposes higher to the rigidity and structure of the rigidity particularly tailstock tool of lathe It is required that, therefore, devising CNC Turning Center, the tailstock tool body structure is using a pair main axle structure form (see Fig. 1).
Tailstock housing band workpiece to be added, the tailstock casing center is provided with through hole, and the through hole includes being divided into two sections, treated There is an open-topped arcuate socket intersected vertically with central through hole the central through hole position of workpiece.Wherein two sector holes are distinguished For first paragraph and second segment, first paragraph is Φ 200H5 holes, is the aperture that tailstock upper body is engaged with tailstock main shaft, to improve tail The damping capaicty of seat upper body in use and the cooperation rigidity with tailstock main shaft, Φ 200H5 holes use Shooting Technique, are molded Unilateral 2mm of layer or so;Second segment is Φ 130H7, loads tailstock main shaft fastening block in intersecting hole, to ensure the overall firm of tailstock Property.Provided with the injecting hole communicated with the through hole at center on tailstock housing, injection is realized.We are in order to meet this design, work Skill requirement, it is ensured that the precision in Φ 200H5 holes, spy devises a special injection frock.
Utility model content
To overcome problems of the prior art, the utility model provides a kind of numerically controlled lathe tailstock housing essence Close hole injection special tooling.By the application of this set frock, the smooth implementation of Shooting Technique, and maximum journey not only ensure that The design accuracy that the ensure that workpiece requirement of degree, while greatly reducing difficulty of processing, reduces production cost, so as to bring Good economic benefit.
The technical scheme in the invention for solving the technical problem is:This kind of numerically controlled lathe tailstock housing PRECISION HOLE With injection special tooling, tailstock housing band workpiece to be added, the tailstock casing center is provided with through hole, and the through hole includes being divided into two Section, also has an open-topped arcuate socket intersected vertically with central through hole in the central through hole position of workpiece to be added.The design Including positioning core axle, seal disc and sealing asessory shaft, the positioning core axle be slender axles, the outer circumference surface of positioning core axle with it is to be added The through hole corresponding matching of workpiece;One end of positioning core axle is provided with the first cascaded surface, and the first cascaded surface acts against the end of workpiece to be added Face, both are fixedly connected by trip bolt;The other end end of positioning core axle is provided with seal disc, and the seal disc passes through fastening Screw is fixedly connected with the other end of workpiece to be added;Fill in intrinsic sealing asessory shaft in arcuate socket, the sealing asessory shaft with The face that positioning core axle coordinates is curved surface, and the sealing asessory shaft includes the first sealing asessory shaft and the second sealing asessory shaft, first Sealing asessory shaft and the second sealing asessory shaft are inserted and secured in arcuate socket from the two ends of arcuate socket respectively.
Further, the center of the first sealing asessory shaft or the second sealing asessory shaft is provided with the first tapped through hole.
Further, the positioning core axle is hollow shaft, and plug is welded with the two ends of positioning core axle.
Further, O-ring seal is provided between the positioning core axle and seal disc.
Further, the center of the seal disc is provided with the second tapped through hole, and second tapped through hole is just to locating core The end face of axle plug.
Further, the first sealing asessory shaft and the second sealing asessory shaft are nylon material.
Further, it is described to seal asessory shaft, positioning core axle and seal disc surface smear releasing agent in a pre-installation.
To sum up, above-mentioned technical proposal of the present utility model has the beneficial effect that:
By the application of this set frock, the smooth implementation of Shooting Technique is not only ensure that, and farthest be ensure that The design accuracy requirement of workpiece, while greatly reducing difficulty of processing, reduces production cost, so as to bring good warp Ji benefit.
Brief description of the drawings
Fig. 1 is the structural representation of workpiece to be added;
Fig. 2 is the structural representation of positioning core axle of the present utility model;
Fig. 3 is the fit structure schematic diagram that the utility model is molded frock;
The sectional view that Fig. 4 is A-A in Fig. 3.
In figure:
1 positioning core axle, 11 first cascaded surfaces, 12 plugs, 2 trip bolts, 3 seal discs, 31 second tapped through holes, 4O types Circle, 5 first sealing asessory shafts, 6 second sealing asessory shafts, 61 first tapped through holes, 7 workpiece to be added, 71 first paragraphs, 72 second Section, 73 arcuate sockets, 74 injecting holes, 75 injection molded layers, 8 curved surfaces.
Embodiment
Feature of the present utility model and principle are described in detail below in conjunction with accompanying drawing 1-4, illustrated embodiment is only used for The utility model is explained, protection domain of the present utility model is not limited with this.
As shown in figure 1, tailstock housing band workpiece 7 to be added, the tailstock casing center is provided with through hole, the through hole includes dividing For 72 two sections of first paragraph 71 and second segment, there is a top intersected vertically with central through hole in the central through hole position of workpiece to be added The arcuate socket 73 of portion's opening.
As shown in figure 3, the utility model includes positioning core axle 1, seal disc 3 and sealing asessory shaft, positioning core axle 1 is elongated Axle, the through hole corresponding matching of the outer circumference surface of positioning core axle and workpiece to be added.As shown in Fig. 2 the weight in order to mitigate positioning core axle Amount, positioning core axle is hollow shaft, and plug 12 is welded with the two ends of positioning core axle.
One end of positioning core axle is provided with the first cascaded surface 11, and the first cascaded surface acts against the end face of workpiece 7 to be added, Liang Zhetong Trip bolt 2 is crossed to be fixedly connected.The other end end of positioning core axle be provided with seal disc 3, the seal disc by trip bolt 2 with The other end of workpiece 7 to be added is fixedly connected.The intrinsic sealing asessory shaft of plug in arcuate socket 73, the sealing asessory shaft and positioning The face that mandrel coordinates is curved surface 8.As shown in figure 4, in order to note after modeling, sealing asessory shaft can be dismantled smoothly, and spy devises a left side Right bi-body structure, the sealing asessory shaft includes the first sealing sealing asessory shaft 6 of asessory shaft 5 and second, the first sealing asessory shaft It is inserted and secured on respectively from the two ends of arcuate socket in arcuate socket 73 with the second sealing asessory shaft, that is, is respectively mounted and dismantles.For It is easy to disassemble, be provided with the center of the first sealing asessory shaft or the second sealing asessory shaft in first tapped through hole 61, Fig. 4 with Exemplified by the first tapped through hole is set on second sealing asessory shaft.
In order to realize better seal effect, O-ring seal is provided between positioning core axle and seal disc.
A hole is additionally provided with seal disc, position is preferably disposed on the center of seal disc, and the hole is designed as the second screw thread Through hole 31, end face of second tapped through hole just to positioning core axle plug 12 after the completion of injection, loads close with a special screw rod that lengthens In the middle of closing disk 3 in second tapped through hole, positioning core axle is ejected and departs from workpiece.
For the ease of processing and loading and unloading, the first sealing asessory shaft and the second sealing asessory shaft are made using nylon material.
Specifically used process is, first that the right boring of arcuate socket 73 in workpiece 7 to be added is good, and first paragraph 71 and the hole of second segment 72 stay remaining Amount, first is then loaded in arcuate socket and seals the sealing asessory shaft 6 of asessory shaft 5 and second, and fastens (the with workpiece 7 to be added One sealing asessory shaft 5 and second sealing asessory shaft 6 must not be pulled down again before the injection of the first sector hole is completed), for ease of processing and filling Unload, the first sealing sealing asessory shaft 6 of asessory shaft 5 and second makes of nylon material, and outer round surface smears the demoulding before loading Agent.At this moment, the hole of second segment 72 and the hole of boring first paragraph 71 in right boring workpiece 7 to be added, to strengthen the adsorption capacity of injection molded layers, first paragraph 71 hole surfaces are coarse, and roughness is in Ra12.5~Ra25 or so.Wherein, positioning of second sector hole as injection positioning core axle Hole, after boring is complete, positioning core axle, seal disc and O-ring seal are good with work piece to be added.It can start from injection after installation Hole 74 is molded (positioning core axle and seal disc also want smearing release agent before loading) into through hole, forms injection molded layers 75.Note After the completion of modeling, it is fitted into a special screw rod that lengthens in the second tapped through hole 31 on seal disc, positioning core axle is ejected and departed from Workpiece, then the first sealing asessory shaft and the second sealing asessory shaft are pulled down, remove injection redundance, so far, be entirely molded work It is fully completed.
By the application of this set frock, the smooth implementation of Shooting Technique is not only ensure that, and farthest be ensure that The design accuracy requirement of workpiece, while greatly reducing difficulty of processing, reduces production cost, so as to bring good warp Ji benefit.
Above-described embodiment is only the description carried out to preferred embodiment of the present utility model, not to the model of the present invention Enclose and be defined, on the premise of the utility model design spirit is not departed from, relevant technical staff in the field is to the utility model Various modifications and improvement, all should expand determined by the utility model claims in protection domain.

Claims (7)

1. a kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling, tailstock housing band workpiece to be added, the tailstock shell Body center is provided with through hole, and the through hole includes being divided into two sections, also has one and central through hole in the central through hole position of workpiece to be added The open-topped arcuate socket intersected vertically, it is characterised in that described fixed including positioning core axle, seal disc and sealing asessory shaft Position mandrel is slender axles, the through hole corresponding matching of the outer circumference surface of positioning core axle and workpiece to be added;One end of positioning core axle is provided with First cascaded surface, the first cascaded surface acts against the end face of workpiece to be added, and both are fixedly connected by trip bolt;Positioning core axle Other end end is provided with seal disc, and the seal disc is fixedly connected by trip bolt with the other end of workpiece to be added;In arc Intrinsic sealing asessory shaft is filled in shape hole, the sealing asessory shaft is curved surface, the sealing asessory shaft with the face that positioning core axle coordinates Including the first sealing asessory shaft and the second sealing asessory shaft, the first sealing asessory shaft and the second sealing asessory shaft are respectively from arcuate socket Two ends be inserted and secured in arcuate socket.
2. a kind of numerically controlled lathe tailstock housing PRECISION HOLE according to claim 1 injection special tooling, it is characterised in that The center of the first sealing asessory shaft or the second sealing asessory shaft is provided with the first tapped through hole.
3. a kind of numerically controlled lathe tailstock housing PRECISION HOLE according to claim 1 injection special tooling, it is characterised in that The positioning core axle is hollow shaft, and plug is welded with the two ends of positioning core axle.
4. a kind of numerically controlled lathe tailstock housing PRECISION HOLE according to claim 1 injection special tooling, it is characterised in that O-ring seal is provided between the positioning core axle and seal disc.
5. a kind of numerically controlled lathe tailstock housing PRECISION HOLE according to claim 1 injection special tooling, it is characterised in that The center of the seal disc is provided with the second tapped through hole, end face of second tapped through hole just to positioning core axle plug.
6. a kind of numerically controlled lathe tailstock housing PRECISION HOLE according to claim 2 injection special tooling, it is characterised in that The first sealing asessory shaft and the second sealing asessory shaft are nylon material.
7. a kind of numerically controlled lathe tailstock housing PRECISION HOLE according to claim 1 injection special tooling, it is characterised in that It is described to seal asessory shaft, positioning core axle and seal disc surface smear releasing agent in a pre-installation.
CN201621377014.6U 2016-12-14 2016-12-14 A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling Active CN206426352U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621377014.6U CN206426352U (en) 2016-12-14 2016-12-14 A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621377014.6U CN206426352U (en) 2016-12-14 2016-12-14 A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling

Publications (1)

Publication Number Publication Date
CN206426352U true CN206426352U (en) 2017-08-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621377014.6U Active CN206426352U (en) 2016-12-14 2016-12-14 A kind of numerically controlled lathe tailstock housing PRECISION HOLE injection special tooling

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CN (1) CN206426352U (en)

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