CN207267172U - A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness - Google Patents
A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness Download PDFInfo
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- CN207267172U CN207267172U CN201721165606.6U CN201721165606U CN207267172U CN 207267172 U CN207267172 U CN 207267172U CN 201721165606 U CN201721165606 U CN 201721165606U CN 207267172 U CN207267172 U CN 207267172U
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Abstract
A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness is the utility model is related to, it is characterized in that：It includes body, connecting screw, compression bar and clamp nut；The center of bodies top is provided with connecting screw, and compression bar is symmetrical to be vertically set on connecting screw, and is fastened by clamp nut.The utility model carries out clamping by using auxiliary processing device to part, compression bar, which is worn, using the hole on part curved surface circumference implements axial compression, make compression impetus to positioning surface be entity stress, both part can be made to avoid bearing tension, strengthen parts machining process rigidity at the same time, reduce part machining deformation and processing is vibrated, avoid processing embrittlement problem.
Description
Technical field
Field of machining is the utility model is related to, is a kind of processing auxiliary dress for being used to clamp the thin-wall special-shaped part of brittleness
Put.
Background technology
Phenolic glass fiber laminated plastic is a kind of thermosetting plastics, because of it with high mechanical strength, impact resistance it is good,
Specific strength can compare favourably with high duty metal, and moisture-proof, heatproof, it is mould proof, insulation performance is good the features such as, thus extensive use
In the large complicated plastic casing class part of manufacture and electric type part etc..Existing line pack housing part is exactly to use phenol aldehyde glass
The thin-wall special-shaped part of brittleness made of fiber laminated plastic.Processing to the thin-wall special-shaped part of brittleness is primarily directed to such line bag
The end face of housing part small end and the cylindrical of small end and shoulder end face are processed.
This kind of part have it is complicated, shape is special（Many places boss is distributed with positive camber, part one end, which is stretched out, does not advise
The then protrusion of shape）, wall it is thin（Inner cavity radius of curvature is R36, and outer surface curvature radius R37, thinnest part wall thickness is only 1mm）、
Processability of product structure is poor, difficult clamping, difficult processing, the features such as property is crisp easy to crack.
In terms of material, the fragile material that standard defines is：Under external force（Such as stretch, impact）Only produce
The deformation of very little destroys the material of fracture.Fragile material failure is usually to be broken, and is weighed with tensile strength.The brittleness thin-walled is different
The phenolic glass fiber compression molding material that type part uses is a kind of hard and crisp thermosetting plastics.Its major defect is that property is crisp, resistance to electricity
Arc difference etc..Its tensile strength belongs to typical fragile material in the range of 35~126/MPa.
From configuration aspects, provided according to mechanical processing industry standard, the definition of thin-wall part is：Wall thickness and internal diameter or wheel
The ratio between wide size is less than 1:20 part is thin-walled parts.The intracavity diameter of the thin-wall special-shaped part of the brittleness is about 72mm, wall
Thickness is 1mm, and the ratio between wall thickness and internal diameter size are much smaller than 1:20, belong to typical thin-walled parts.
From mechanical machining angle, such design of part is complicated, the thin easy embrittlement of in irregular shape and wall, in exposed table
It is difficult to find suitable folder on face（Pressure）Tight position.Work in-process because clamping stress and cut stress combined influence under easily
Produce embrittlement and cause part rejection.These problems cause very big puzzlement to current processing method.
, will be by way of changing pressing plate, as shown in Figure 1 when processing shape using conventional processing method（Wherein, Fig. 1
In（a）It is front view, (b) in Fig. 1 is sectional view）, first shoulder end face 1 carries out axial compression in Fig. 1, processes small end
End face 2 and small stomidium 1-2；Then shut down and change pressing plate, the end face 2 of small end carries out the cylindrical of secondary compression processing small end in Fig. 1
With shoulder end face.
There are problem for the method：1）When compressing processing for the first time, because seal face is compression moulding black skin, compression architectural limitation
Face is small to cause clamping not firm, and compresses that surface evenness is bad causes processing quality bad.2）During the front and rear processing of compression twice,
Seal face is distant away from positioning surface, and it is cavity to compress impetus lower part.Become because stress point vacantly makes the position produce bending
Shape, causes material fiber organizer to bear tension upwards.And for fragile material, held upwards in material fiber organizer
The tension received produces fracture when exceeding tensile strength of material.Therefore this method easily makes at inner cavity of component flex point（Position 1- easy to crack
1）Stress cracks in process, causes product qualification rate to be constantly in low level, causes very big cost to waste.
Utility model content
The purpose of this utility model is to provide a kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness.The dress
It is clamping and the processing embrittlement for solving the problems, such as the thin-wall special-shaped part of such brittleness to put emphasis.By to part in process
Stressing conditions are analyzed, and find out optimal clamping position.And clamping is carried out to part using auxiliary processing device, to reduce part change
Shape, avoids processing embrittlement problem.
The technical solution of the utility model is：A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness, its
It is characterized in：It includes body, connecting screw, compression bar and clamp nut；The center of bodies top is provided with connecting screw, pressure
Bar is symmetrical to be vertically set on connecting screw, and is fastened by clamp nut.
The integrative-structure that the body is made of cylinder, round platform and apotting spindle, round platform is up big and down small, and cylinder one end is set
Put on the big one end of round platform, the diameter of cylinder is more than the diameter of the round platform of big end；The cylinder other end is provided with diameter and is less than circle
The apotting spindle of column diameter, cylindrical side are provided with resigning groove.
The round platform and equipment junction are 5# Morse's tapers.
The connecting screw forms integrative-structure by the screw thread body of rod and base, and threaded rod body is located at base center, bottom
Seat is arranged on body by sunk screw and positioning pin.
The through hole passed through for the screw thread body of rod of connecting screw, the pressure in through hole left and right ends are provided with the middle part of the compression bar
Concave station plane is symmetrically arranged with bar upper surface.
The utility model has the advantages that：Pass through clamping stress to design of part and its in process and cutting stress
Analyzed, using part surfaces externally and internally architectural feature characteristic distributions, determine optimal clamping and force application part.Aided in using processing
Device, using the hole on part curved surface circumference wear compression bar implement axial compression, make compression impetus to positioning surface be entity stress,
Both part can have been made to avoid bearing tension, while strengthened parts machining process rigidity, reduced part machining deformation and processing is vibrated；
Reasonable arrangement work step content and processing sequence；Improve part processing quality and qualification rate.
With reference to embodiment and attached drawing, the utility model is described in further detail, but not as the limit to the utility model
It is fixed.
Brief description of the drawings
Fig. 1 is the thin-wall special-shaped design of part schematic diagram of brittleness；Wherein, in Fig. 1（a）It is front view, (b) in Fig. 1 is
Sectional view；
Fig. 2 is the auxiliary processing device structure diagram that the utility model is used to clamp the thin-wall special-shaped part of brittleness；
Fig. 3 is that the utility model is used to clamping the auxiliary processing device of the thin-wall special-shaped part of brittleness to clamp brittleness thin-wall special-shaped
The connection diagram of part；
Fig. 4 is the structure diagram of compression bar, and a in wherein Fig. 4 is front view, and the b in Fig. 4 is sectional view；
Fig. 5 is connecting screw structure diagram；A in wherein Fig. 5 is front view, and the b in Fig. 5 is side view；
In figure：1st, shoulder end face；1-1, position easy to crack；1-2, small stomidium；2nd, the end face of small end；3rd, small end is cylindrical；4、
Body；4-1, cylinder；4-2, round platform；5th, connecting screw；5-1, the screw thread body of rod；5-2, base；6th, compression bar；6-1, through hole；6-2、
Concave station plane；7th, clamp nut；8th, apotting spindle；9th, part big end projection portion；10th, resigning groove.
Embodiment
Embodiment 1
A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness, it includes body 4, connecting screw 5, compression bar
6 and clamp nut 7；The center at the top of body 4 is provided with connecting screw 5, and compression bar 6 is symmetrical to be vertically set on connection
On screw rod 5, and fastened by clamp nut 7.
Embodiment 2
As shown in Figure 2：A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness, it includes body 4, connection
Screw rod 5, compression bar 6 and clamp nut 7；The center at the top of body 4 is provided with connecting screw 5, and compression bar 6 is symmetrical vertical
It is arranged on connecting screw 5, and is fastened by clamp nut 7.
The integrative-structure that the body 4 is made of cylinder 4-1, round platform 4-2 and apotting spindle 8, under big on round platform 4-2
Small, cylinder 4-1 one end is arranged on the big one end of round platform 4-2, and the diameter of cylinder 4-1 is more than the diameter of the round platform 4-2 of big end；Circle
The column 4-1 other ends are provided with the apotting spindle 8 that diameter is less than body diameter, and cylinder 4-1 sides are provided with resigning groove 10.
The round platform 4-2 and equipment junction are 5# Morse's tapers.
As shown in Figure 5（A in wherein Fig. 5 is front view, and the b in Fig. 5 is side view）：The connecting screw 5 is by spiral shell
Rasp bar body 5-1 and base 5-2 composition integrative-structures, screw thread body of rod 5-1 are located at base 5-2 centers, and base 5-2 passes through countersunk head
Screw and positioning pin are arranged on body 1.
As shown in Figure 4（A in wherein Fig. 4 is front view, and the b in Fig. 4 is sectional view）：The middle part of compression bar 6 is provided with
The through hole 6-1 that screw thread body of rod 5-1 for connecting screw 5 passes through, it is symmetrical on 6 upper surface of compression bar of through hole 6-1 left and right ends
It is provided with concave station plane 6-2.
Embodiment 3
Part in Fig. 1 is arranged on simple nc vehicle device and is processed.Before processing, first pre-heating device makes its 30min that dallies,
Equipment is set to reach stable machining state with this.
Clamping is carried out to part shown in Fig. 1 using the auxiliary processing device of the utility model shown in Fig. 2, the connection after clamping
As shown in Figure 3.
The auxiliary processing device, it includes body 4, connecting screw 5, compression bar 6 and clamp nut 7；The top of body 4
Center is provided with connecting screw 5, and compression bar 6 is symmetrical to be vertically set on connecting screw 5, and passes through clamp nut 7
Fastening.
The integrative-structure that the body 4 is made of cylinder 4-1, round platform 4-2 and apotting spindle 8, under big on round platform 4-2
Small, cylinder 4-1 one end is arranged on the big one end of round platform 4-2, and the diameter of cylinder 4-1 is more than the diameter of the round platform 4-2 of big end；Circle
The column 4-1 other ends are provided with the apotting spindle 8 that diameter is less than body diameter, and cylinder 4-1 sides are provided with resigning groove 10.
The round platform 4-2 and equipment junction are 5# Morse's tapers；Have connection and positioning function concurrently；
The connecting screw 5 forms integrative-structure by screw thread body of rod 5-1 and base 5-2, and screw thread body of rod 5-1 is located at base
At 5-2 centers, base 5-2 is arranged on body 4 by sunk screw and positioning pin.Connecting screw leans on sunk screw with body
Rigid mechanical is carried out with positioning pin to connect；
The through hole that diameter is slightly larger than the connecting screw diameter of thread is provided with the middle part of compression bar, it is recessed to be symmetrical with the design of Kong Kong both ends
Platform plane, the seal face for making clamp nut are plane；Clamp nut core threaded hole and connecting screw thread fitting, clamp nut
Big end circumferential surface is arranged to knurled surface, easy to tighten manually.
Clamping is carried out using auxiliary processing device to part to concretely comprise the following steps：1. first by connecting screw and body countersunk head
Screw and positioning pin are rigidly connected, then body Mohs vertebra is partially loaded in machine tool chief axis hole.Apotting spindle is corrected to jump
Within dynamic 0.01mm, body is then fixed.2. compression bar is inserted into the hole on part periphery, and make the through hole axis in the middle part of compression bar
Line is consistent with part pilot hole axes.3. part big end projection portion 9 is set to correspond to body resigning groove 10, by part big end
Location hole is inserted in body apotting spindle, while part drives the hole on compression bar to be inserted on connecting screw.4. by clamp nut from
Filled in the small stomidium of part, be directed at connecting screw threaded portion, tighten manually or tighten clamp nut using torque spanner.Tighten
Power should be 2.5N.m~3N.m.The thrust born by compression bar is delivered on material object parts, implements axial compression to part.
Roughing stage, the end face 2 of rough turn part small end and cylindrical the 3 of small end and shoulder end face 1, the end face 2 of small end are stayed
Allowance 0.1mm, cylindrical 3 diametric(al) of small end stay allowance 0.3mm；Tool changing, the small stomidium 1-2 of roughing, small stomidium
1-2 diametric(al)s stay allowance 0.3mm；Should during, select polycrystal diamond cutter, lathe rotating speed for 600r/min~
800r/min, 0.15~0.2mm/r of the amount of feeding, cutting depth 0.3mm.
Given size is arrived in semifinishing stage, the end face 2 of car small end, cylindrical 3 and shoulder end face 1 of car small end, small end
Cylindrical 3 diametric(al) stays allowance 0.1mm；Tool changing, the small stomidium 1-2 of car, small stomidium 1-2 diametric(al)s stay allowance
0.1mm；Should during, select polycrystal diamond cutter, lathe rotating speed is 800r/min, 0.15~0.2mm/r of the amount of feeding, cutting
Depth 0.1mm.
Finishing stage, tool changing, cylindrical 3 and shoulder end face 1 of car small end arrive given size, ensure size Φ 54-0.03
- the 0.104 and 0.05mm that beats to positioning datum；Tool changing, the small stomidium 1-2 of car to given size, ensure size Φ 51+0.12 0 and
Beat positioning datum 0.05mm.Should during, select polycrystal diamond cutter, lathe rotating speed is 1000r/min, the amount of feeding
0.15~0.2mm/r, cutting depth 0.1mm.
In above procedure of processing, polycrystal diamond cutter is selected.Same set of cutter can be used in roughing, semifinishing,
Finishing then needs another transducer set cutter, coarse-fine processing is used different cutters respectively, it is ensured that the sharpness of finishing tool, from
And ensure machining accuracy and processing quality.
The utility model is characterized in that：
1. the hole being distributed on by the use of part curved surface circumference wears compression bar and implements axial compression, reduce because often as pressed parts
Advise deformation caused by installation way.
2. in clamping and process, it is entity stress to compress impetus to positioning surface, and material internal bears compression,
Part is unlikely to deform, and prevents from being broken.
3. compress impetus to positioning surface distance have improvement greatly than before, both avoided part working position overhanging it is long,
Rigidity it is bad caused by vibrate and influence processing quality even material chipping, while it also avoid compress impetus to positioning surface away from
From the excessive and even embrittlement of part deformation caused by stress point is hanging.
4. manually or tightening nut using torque spanner to implement to compress, make thrust easy to control in appropriate model
In enclosing, avoid using caused by common wrench is tightened that thrust is excessive to cause part to burst apart in the past.
5. simplify processing process.Clamped one time completes the processing of all the elements, and reducing shutdown, to change pressing plate etc. auxiliary
Help the clamping time.Processing efficiency is not only improved, but also stablizes processing quality.
6. using " staged layering processing " theory, rationally cutting parameter, reasonable selection cutter is set to be divided stage by stage
Layer processing, reduces the generation of cutting force and cutting vibration, so as to further control part machining deformation, ensures the processing matter of part
Amount, improves part qualification rate.
For the utility model compared with the processing method of the thin-wall special-shaped part of conventional brittleness, which can solve such part
Clamping problem, hence it is evident that improve stressing conditions of the part in clamping, process, so as to solve part because bearing improper external force production
Raw embrittlement problem, greatly improves part processing quality and passing rate of processing, while improve production efficiency.The technology can also push away
Extensively it is applied in the thin-wall special-shaped part production of the similar brittleness of other product structures.
The part of above-described embodiment is the thin-wall special-shaped part of brittleness.The component and structure that the present embodiment does not describe in detail
And the well-known components and common structure or conventional means of the technique category industry, do not describe one by one here.
Claims (5)
1. a kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness, it is characterized in that：It includes body（4）, connection
Screw rod（5）, compression bar（6）And clamp nut（7）；Body（4）The center at top is provided with connecting screw（5）, compression bar（6）It is left
The right side is symmetrically vertically set on connecting screw（5）On, and pass through clamp nut（7）Fastening.
2. a kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness according to claim 1, it is characterized in that：
The body（4）It is by cylinder（4-1）, round platform（4-2）And apotting spindle（8）The integrative-structure of composition, round platform（4-2）Under going up greatly
It is small, cylinder（4-1）One end is arranged on round platform（4-2）On big one end, cylinder（4-1）Diameter be more than big end round platform（4-2）
Diameter；Cylinder（4-1）The other end is provided with the apotting spindle that diameter is less than body diameter（8 ）, cylinder（4-1）Side is set
There is resigning groove（10）.
3. a kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness according to claim 2, it is characterized in that：
The round platform（4-2）It is 5# Morse's tapers with equipment junction.
4. a kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness according to claim 1, it is characterized in that：
The connecting screw（5）It is by the screw thread body of rod（5-1）And base（5-2）Form integrative-structure, the screw thread body of rod（5-1）Positioned at base
（5-2 ）At center, base（5-2）Body is arranged on by sunk screw and positioning pin（4）On.
5. a kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness according to claim 1, it is characterized in that：
The compression bar（6）Middle part is provided with for connecting screw（5）The screw thread body of rod（5-1）The through hole passed through（6-1）, in through hole（6-
1）The compression bar of left and right ends（6）Concave station plane is symmetrically arranged with upper surface（6-2）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165606.6U CN207267172U (en) | 2017-09-12 | 2017-09-12 | A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165606.6U CN207267172U (en) | 2017-09-12 | 2017-09-12 | A kind of auxiliary processing device for being used to clamp the thin-wall special-shaped part of brittleness |
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| CN207267172U true CN207267172U (en) | 2018-04-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108675A (en) * | 2018-09-28 | 2019-01-01 | 西安北方光电科技防务有限公司 | A kind of clamping method and device improving lens barrel class part processing precision |
| CN116288131A (en) * | 2023-05-23 | 2023-06-23 | 西安稀有金属材料研究院有限公司 | Method for strengthening inner and outer surfaces of high-brittleness semiconductor component with thin-wall structure |
-
2017
- 2017-09-12 CN CN201721165606.6U patent/CN207267172U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108675A (en) * | 2018-09-28 | 2019-01-01 | 西安北方光电科技防务有限公司 | A kind of clamping method and device improving lens barrel class part processing precision |
| CN116288131A (en) * | 2023-05-23 | 2023-06-23 | 西安稀有金属材料研究院有限公司 | Method for strengthening inner and outer surfaces of high-brittleness semiconductor component with thin-wall structure |
| CN116288131B (en) * | 2023-05-23 | 2023-08-08 | 西安稀有金属材料研究院有限公司 | Method for strengthening inner and outer surfaces of high-brittleness semiconductor component with thin-wall structure |
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