CN109454456A - The complete processing technology and processing tool of small parts - Google Patents
The complete processing technology and processing tool of small parts Download PDFInfo
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- CN109454456A CN109454456A CN201811368513.2A CN201811368513A CN109454456A CN 109454456 A CN109454456 A CN 109454456A CN 201811368513 A CN201811368513 A CN 201811368513A CN 109454456 A CN109454456 A CN 109454456A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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Abstract
The invention belongs to technical fields of mechanical processing, are related to the complete processing technology and processing tool of a kind of small parts, which includes: 1) to determine the clip base mechanism of small parts；2) set up an organization positioning device in clip base mechanism；3) location structure of small parts is set in the clip base mechanism of small parts；4) the multiple small parts of multiple groups are uniformly mounted on the integrated installation face of clip base mechanism, form integrated workpiece, the small parts in integrated workpiece is positioned respectively by the location structure of small parts；5) by integrated workpiece be fixed on three-jaw and it is top between, positioned by mechanism positioning device, and to clip base mechanism carry out centering；6) after step 5) to be done, multiple groups small parts is successively processed.The present invention provides the complete processing technologys and processing tool of a kind of raising processing efficiency, raising three axis, half machining center utilization rate of equipment and installations and the small parts that can reduce the amount of labour.
Description
Technical field
The invention belongs to technical field of mechanical processing, it is related to a kind of method of processing parts and processing tool more particularly to one
The complete processing technology and processing tool of kind small parts.
Background technique
Currently, manufacturing enterprise in order to reduce product processing in human factor interference, improve processing efficiency, all a large amount of
Introduce numerical control device, especially numerical control machining center.However for the processing enterprise of small parts, the numerical control of processing technology
Change is not obviously improved its processing efficiency, the reason for this is that process is dispersed, utilization rate of equipment and installations is low for analysis.Numeric control, which is concentrated, to be arranged
Although being considered as most directly proposing efficacious prescriptions method, the demand that a large amount of processes will appear after merging to Five-axis NC Machining Center increases greatly
It is more, and not applicable situation occur in big three axis and three axis, half machining center of ownership, easily cause equipment bottleneck, scheduled production accumulation,
Delay the problems such as process-cycle.The research and application of the integrated complete processing method for combining rotation processing of workpiece can give full play to three
Axis half or the processed edge at three axis machining center and the utilization rate and production efficiency that significantly improve three axis, half machining center, Ke Yicong
This problem is fundamentally solved, therefore, the research and development of complete processing method are in urgent need.
And rotate the part of processing in the heart for work in-process, and it is domestic to use vertical machining centre mostly at present, using turning
The mode on one top of the soft three-jaw of decometer disk and its folder of tailstock one, 1 part of clamped one time, the mode of single-piece work carry out, tool changing machine
Structure is easy to wear, or even damage.By taking thread milling 0.1120-40UNC-2B processing as an example, generally comprising no less than 7 work steps, (milling is flat
Multiple work steps such as face, drill centers, drilling, bore hole, fraising, spot-facing, thread milling), and 7 work steps all need in Roughing and fine machining
It is complete to execute, in order to guarantee without flange, suspension burr in screw thread process rear thread hole, while thread taper is eliminated, current adds
Work technique are as follows: threaded bores chamfering → thread milling → cut with scissors bottom outlet → thread milling again again, therefore when part processing, tool changing is up to
11 times；For more complicated part, the number of tool changing is much larger than 11 times when processing, exacerbates the abrasion of lathe cutter-exchange mechanism.It is right
In the processing of current part, the single-piece work time is 5.4 minutes, and operator has to frequently switch machine tool door, handling zero
Part, poor in dealing with for the employee of operation 2 or more lathes, not only large labor intensity, has an effect on adding for other lathes of operation
Work efficiency rate.Nonetheless, most 120 yield of per tour, it is difficult to meet the order demand amount of 1 year more than 40,000 part of client.
Summary of the invention
In order to solve the above technical problems in background technology, the present invention provides a kind of raising processing efficiency, mention
The complete processing technology and processing tool of high three axis, half machining center utilization rate of equipment and installations and the small parts that can reduce the amount of labour.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of complete processing technology of small parts, it is characterised in that: the complete processing technology of the small parts includes
Following steps:
1) the clip base mechanism of small parts is determined；
2) set up an organization positioning device in clip base mechanism；
3) location structure of small parts is set in the clip base mechanism of small parts；
4) the multiple small parts of multiple groups are uniformly mounted on the integrated installation face of clip base mechanism, form integrated work
Part respectively positions the small parts in integrated workpiece by the location structure of small parts；
5) by integrated workpiece be fixed on three-jaw and it is top between, positioned by mechanism positioning device, and to clip base machine
Structure carries out centering；
6) after step 5) to be done, multiple groups small parts is successively processed.
Above-mentioned steps 1) employed in clip base mechanism be more ribs with cylinder grip shank, center hole and centering band
Column；The side of the polygon prism constitutes the integrated installation face of small parts；The rib number of the polygon prism is N, 3≤N≤5；It is described
The transition face of cylinder grip shank and mounting surface is prelocalization step surface；Axis and prelocalization step surface where the cylinder grip shank
Line face is vertical；The centering band includes plane centering band and annular centering band.It is preferred that N=4.
Above-mentioned steps 2) in mechanism positioning device be fixed before being defined to position of the clip base mechanism in X-axis
The positioning element of position step surface, locating centre hole and restriction clip base mechanism in the rotary freedom of A axis；The positioning region
Part include clip base mechanism centering band on the whole and close to cylinder grip shank angular positioning pin and beans shape backstop
Pin；The angular positioning pin only leans against on beans shape pin.
Above-mentioned steps 3) in location structure be hole hole face location structure.
Above-mentioned steps 5) specific implementation be:
5.1) the uniformly distributed multiple parts of clamping on each integrated installation face of polygon prism, form integrated workpiece；
5.2) by integrated workpiece be fixed on three-jaw and it is top between, the angular positioning pin in clip base mechanism stops with beans shape
Backing pin only leans on；
5.3) centering annular bounce centering band, it is ensured that the bounce of clip base mechanism is not more than 0.01mm；
5.4) with handwheel control turntable rotation, plane centering band in clip base mechanism is placed in Working position on one side, i.e.,
The face normal direction is that Z axis is positive；
5.5) by turntable angle adjustment by plane centering band centering within 0.005mm, the position of turntable at this time is set
It is set to angle zero point.
Above-mentioned steps 6) specific implementation be:
6.1) after centering being installed by first set clip base mechanism, to the multiple groups multiple zero of the gone up clamping of clip base mechanism
Part carries out the production and processing stage: type face processing program being moved to the next of same group part in a manner of X-direction increment
Part position, every processing for completing a group part, turntable are rotated by 90 ° automatically, and next group part is gone to machining position, until completing
The processing of multiple groups whole part, turntable reversely return to angle zero point, and workbench returns to zero point；
6.2) in first set clip base to be done mechanism after the processing of the multiple parts of multiple groups of clamping, second set of folder is replaced
Have matrix mechanism, the bounce of the annular centering band of the second sleeve clamp matrix mechanism is checked and correct, if repeating within 0.01
Step 6.1), until completing the processing of the multiple parts of multiple groups of institute's clamping in the second sleeve clamp matrix mechanism.
A kind of complete processing tool of small parts, it is characterised in that: the complete processing tool of the small parts includes
Clip base mechanism, mechanism positioning device and small parts location structure；The mechanism positioning device is arranged in clip base
In mechanism；Small parts to be processed is arranged in clip base mechanism by small parts location structure；The clip base machine
Structure is arranged on three axis, half machining center by mechanism positioning device.
Above-mentioned clip base mechanism is the polygon prism with cylinder grip shank, center hole and centering band；The polygon prism
The integrated installation face of side composition small parts；The rib number of the polygon prism is N, 3≤N≤5；The cylinder grip shank with
The transition face of mounting surface is prelocalization step surface；Axis where the cylinder grip shank is vertical with prelocalization step upper thread face；Institute
Stating centering band includes plane centering band and annular centering band；The small parts to be processed is set by small parts location structure
It sets on the integrated installation face of polygon prism；The mechanism positioning device is limited position of the clip base mechanism in X-axis
The positioning element of rotary freedom of the fixed prelocalization step surface and restriction clip base mechanism in A axis；The positioning element
Including the centering band in clip base mechanism on the whole and close to cylinder grip shank angular positioning pin and beans shape pin；
The beans shape pin only leans against on angular positioning pin.
Above-mentioned small parts location structure is structure one or structure two；
The structure one includes positioning bottom surface, positioning pin, clamp nut and angular pin；The angular pin and positioning pin
Parallel setting is on positioning bottom surface；The positioning bottom surface is arranged on the integrated installation face of polygon prism；Axis where the angular pin
Line is vertical with positioning bottom surface line face；Axis is vertical with positioning bottom surface line face where the positioning pin；Small parts suit to be processed
On positioning pin；The clamp nut is placed in positioning pin end and compresses small parts to be processed；
The structure two includes V-type item, pressing plate, setting circle pin, the first screw and the second screw；The V-type item is logical
The first screw is crossed to be fixed on the integrated installation face of polygon prism；Setting circle pin is provided on the V-type item；The pressing plate and V
The opening of profile bar is opposite and is connected by the second screw with V-type item；Small parts to be processed is placed between V-type item and pressing plate.
The invention has the advantages that
The present invention provides the complete processing technology and processing tool of a kind of small parts, this method passes through to clamp structure
Clamping in groups and quick change design, formed improve processing efficiency shorten part process cycle complete processing method, to improve
Three axis, half machining center utilization rate of equipment and installations.The present invention realizes work in-process and uses one top mode of a folder that can only process every time in the heart
1 part greatly improves processing efficiency, reduces processing to the breakthrough of the multiple parts of clamped one time (such as 56) processing method
The frequency of center cutter-exchange mechanism damage brings certain economic benefit for company, to use from now on, promotes multistation multiple workpieces
Mode processes part with directive significance.This technology can be applied to military aviation, space flight, guided missile, ship, automobile and its
He it is non-boat part machining center process and electric machining process Fixture Design in, to promote defense-related science, technology and industry development have it is great
Society, military benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of clip base mechanism of the present invention；
Fig. 2 is the first structural schematic diagram of small parts location structure of the present invention；
Fig. 3 is second of structural schematic diagram of small parts location structure of the present invention；
Wherein:
1- cylinder grip shank；2- prelocalization step surface；3- plane centering band；4- bounce centering band；5- center hole；6- is integrated
Mounting surface；7- is angularly sold；8- positions bottom surface；9- positioning pin；10- clamp nut；11-V profile bar；12- pressing plate；13- positioning cylinder
Pin；The first screw of 14-；The second screw of 15-.
Specific embodiment
The present invention provides a kind of complete processing technology of small parts, the technique the following steps are included:
1) the clip base mechanism of small parts is determined, used clip base mechanism is band cylinder grip shank 1, top
The polygon prism of hole 5 and centering band；The side of polygon prism constitutes the integrated installation face 6 of small parts；The rib number of polygon prism is N, 3
≤N≤5；The transition face of cylinder grip shank 1 and mounting surface is prelocalization step surface 2；1 place axis of cylinder grip shank and prelocalization
2 line face of step surface is vertical；Centering band includes plane centering band 3 and annular centering band；
2) set up an organization positioning device in clip base mechanism, and mechanism positioning device is to clip base mechanism in X-axis
On the prelocalization step surface 2 that is defined of position and limit clip base mechanism in the positioning region of the rotary freedom of A axis
Part；Positioning element include clip base mechanism centering band on the whole and close to cylinder grip shank 1 angular positioning pin with
And beans shape pin；Beans shape pin only leans against on angular positioning pin.
3) location structure of small parts is set in the clip base mechanism of small parts, and location structure is that hole hole face is fixed
Bit architecture, face face location structure and face face location structure.
4) the multiple small parts of multiple groups are uniformly mounted on the integrated installation face 6 of clip base mechanism, form integrated work
Part respectively positions the small parts in integrated workpiece by the location structure of small parts；
5) by integrated workpiece be fixed on three-jaw and it is top between, positioned by mechanism positioning device, and to clip base machine
Structure carries out centering, and specific implementation is:
5.1) the uniformly distributed multiple parts of clamping on each integrated installation face 6 of polygon prism, form integrated workpiece；
5.2) by integrated workpiece be fixed on three-jaw and it is top between, the angular positioning pin in clip base mechanism stops with beans shape
Backing pin only leans on；
5.3) centering annular bounce centering band 4, it is ensured that the bounce of clip base mechanism is not more than 0.01mm；
5.4) with handwheel control turntable rotation, plane centering band 3 in clip base mechanism is placed in Working position on one side, i.e.,
The face normal direction is that Z axis is positive；
5.5) by turntable angle adjustment by 3 centering of plane centering band within 0.005mm, the position of turntable at this time is set
It is set to angle zero point.
6) after step 5) to be done, multiple groups small parts is successively processed, specific implementation is:
6.1) after centering being installed by first set clip base mechanism, to the multiple groups multiple zero of the gone up clamping of clip base mechanism
Part carries out the production and processing stage: type face processing program being moved to the next of same group part in a manner of X-direction increment
Part position, every processing for completing a group part, turntable are rotated by 90 ° automatically, and next group part is gone to machining position, until completing
The processing of multiple groups whole part, turntable reversely return to angle zero point, and workbench returns to zero point；
6.2) in first set clip base to be done mechanism after the processing of the multiple parts of multiple groups of clamping, second set of folder is replaced
Have matrix mechanism, the bounce of the annular centering band of the second sleeve clamp matrix mechanism is checked and correct, if repeating within 0.01
Step 6.1), until completing the processing of the multiple parts of multiple groups of institute's clamping in the second sleeve clamp matrix mechanism.
The present invention while the complete processing method of small parts is provided, additionally provide a kind of the complete of small parts plus
Work tooling, the complete processing tool of the small parts include clip base mechanism, mechanism positioning device and small parts positioning
Structure；Mechanism positioning device is arranged in clip base mechanism；Small parts to be processed is arranged by small parts location structure
In clip base mechanism；Clip base mechanism is arranged on three axis, half machining center by mechanism positioning device.
Wherein: clip base mechanism is the polygon prism with cylinder grip shank 1, center hole 5 and centering band；The side of polygon prism
The integrated installation face 6 of face composition small parts；The rib number of polygon prism is N, 3≤N≤5；The transition of cylinder grip shank 1 and mounting surface
Face is prelocalization step surface 2；1 place axis of cylinder grip shank is vertical with 2 line face of prelocalization step surface；Centering band includes that plane is looked for
Positive band 3 and annular centering band；The integrated installation of polygon prism is arranged in by small parts location structure for small parts to be processed
On face 6；Mechanism positioning device is the prelocalization step surface 2 being defined to position of the clip base mechanism in X-axis and limit
Clip base mechanism is determined in the positioning element of the rotary freedom of A axis；Positioning element includes the centering band in clip base mechanism
On the whole and close to cylinder grip shank 1 angular positioning pin and beans shape pin；Beans shape pin only leans against angular positioning
On pin.
Small parts location structure is structure one or structure two；
Referring to fig. 2, structure one includes positioning bottom surface 8, positioning pin 9, clamp nut 10 and angular pin 7；Angular pin 7 and
Positioning pin 9 is arranged parallel on positioning bottom surface 8；Positioning bottom surface 8 is arranged on the integrated installation face 6 of polygon prism；Where angular pin 7
Axis is vertical with positioning 8 line face of bottom surface；9 place axis of positioning pin is vertical with positioning 8 line face of bottom surface；Small parts suit to be processed
On positioning pin；Clamp nut is placed in positioning pin end and compresses small parts to be processed；
Referring to Fig. 3, structure two includes V-type item 11, pressing plate 12, setting circle pin 13, the first screw 14 and the second screw
15；V-type item is fixed on the integrated installation face 6 of polygon prism by the first screw；Setting circle pin is provided on V-type item；Pressing plate
It is opposite with the opening of V-type item and be connected with V-type item by the second screw；Small parts to be processed is placed between V-type item and pressing plate.
Technical solution provided by the present invention will be described in detail by taking specific embodiment as an example below:
The principle of the present invention analysis is:
For high efficiency complete set apparatuses processing method based on turntable and top three axis, half machining center equipment, frame includes three
Part, first part are the workbench of turntable and rolling center composition, and second part is part and quick change multi-station clamp composition
Integrated workpiece, Part III is operator.By the calculation formula of utilization rate of equipment and installations it is found that the cutting time of main shaft is longer, machine
Bed subsidiary operation time and lathe waiting time are shorter, and utilization rate of equipment and installations is higher.The lathe waiting time is that operator digests drawing
It is stagnated the time consumed in the state of waiting with the lathes such as tooling are prepared, it is related with the technical level of operation and management mode,
This temporarily ignores.So improving utilization rate of equipment and installations can improve from following several respects:
1) increase the effective cutting time t of main shaft1；
2) lathe subsidiary operation time is cut down, lathe subsidiary operation time includes: programming, debugging, loads and unloads part in machine, changes
The times that execution consumes in lathe presence such as knife, switch machine tool door.
The complete processing technology of small parts provided by the present invention is to integrate multiple parts with fixture, and single part exists
Complicated positioning and clamping on fixture carries out outside lathe, and lathe is only involved in fast-assembling and the quick-release movement of integrated workpiece, realizes lathe
Effective stock removal action and the movement of multiple part complexity clampings is parallel carries out；It is designed using the localization characteristics of turntable and rolling center
The quick change construction of fixture realizes that fixture under conditions of no quick change pedestal, realizes quick change function；Certainly using process control turntable
Multiple faces of integrated workpiece are placed in Working position by the function of dynamic indexing, realize that multiple parts can be processed in single clamping.In lathe
When the machining of the reliable and stable integrated workpiece of execution, operator can be used to combine the waiting time between near next movement
Prepare other set collection workpiece, two sleeve clamps are alternately applicable in, and under such operating process, cut dress movement parallel function and fixture is fast
Lathe subsidiary operation time can significantly be cut down by changing function, and the more part machining functions of single clamping greatly increase main shaft and have
Imitate the cutting time.
Determine clip base structure
Quick change multi-station clamp should have the characteristics that quick despatch and carry multiple positioning bodies, and base structure needs have
Wider working face, higher bending stiffness and reasonable clamp structure.According to the top localization characteristics of turntable, matrix knot is determined
Structure is the polygon prism with cylinder grip shank and center hole.The rib number for determining matrix is calculated by following analysis.
Due to bending stiffness and Bending Moment Equations M (x), the moment of inertia I of cross section, material elastic modulus E and perimeter strip
Part (constraint condition of support) is related.The material of matrix, stress, span length under the same conditions, the elastic modulus E of material and its
The value of upper moment of flexure is identical, therefore only has the moment of inertia I of cross section to the influence factor of matrix bending stiffness.Due to bending deformation with
The moment of inertia I of cross section is inversely proportional, in the case where cross-sectional area identical (being self-possessed identical), reasonable design section shape,
The bending stiffness of foundation structure can be effectively improved.
It is assumed that the cross section of foundation structure is n-shaped, N can be 3,4,5, calculate the moment of inertia of the cross section of three kinds of shapes
I3、I4、I5.Since cross-sectional area is identical, cross section side length is 1.3b, b, 0.69b respectively.Due to b5=0.69b is too small, work
Make that face is too narrow, influences the assembly of location structure, therefore do not select pentagonal prism.It is calculated according to the moment of inertia calculation formula of Typical Planar
The moment of inertia I3、I4:
Work as b3=1.3b, b4=b, h3=1.13b, c=0.65b, h4When=b,
I3=0
Wherein, b3、b4For the side length of triangular prism and tetragonous column section, b is unit side length, h3、h4Respectively triangular prism and four
The height in prism section, c are the centroid wheelbase of trigone column section.
Obvious I4It is far longer than I3, so base structure is determined as with the tetragonous of cylinder grip shank, center hole and centering band
Column is illustrated in fig. 1 shown below.
Determine fixture quick change construction:
Grip shank is easily determined as cylinder by the localization characteristics of three-jaw, and the prelocalization step surface in Fig. 1 only leans against three
On pawl end face, can the position quickly to fixture in X-axis accurately define, therefore, quickly positioning is unique needs what is solved to ask
Topic is the limitation to rotary freedom on fixture A axis.The turntable of three axis, half machining center has angular by process control locking
Function, after processing part every time, procedure auto-control three-jaw returns to angular position, and locks angular.Using the function,
Beans shape pin is fixed on soft three-jaw.Increase angular positioning pin close to soft three-jaw one on the face that fixture has plane centering band,
Rotary freedom of the fixture on A axis is limited to stopping by effect for the angular positioning pin on fixture by beans shape pin, it is real
The function of now quickly positioning.
Determine small parts location structure:
Small parts location structure provided by the present invention includes following two mode:
The first structure:
The roomy working face of clip base is suitble to a plurality of types of location structures of small parts, relatively common positioning method
There are hole hole face, face face, face face etc..By taking common hole hole face mode positions as an example, location structure is determined, such as the milling of flow cam
The positioning method of type face process is typical hole hole face mode, and location structure is as shown in Fig. 2, based on positioning pin and positioning bottom surface
Location structure is wanted, angular pin is angular by the location hole restriction part on part, and clamp nut provides pressing force.
Second of structure:
Referring to Fig. 3, work in-process holds the right end of multi-station tooling using the scroll chuck soft three-jaw folder of turntable institute band in the heart,
Withstood on the centre bore of multi-station tooling left end using tailstock centre, and adjust, alignment tool bounce within 0.03mm.By part
By each face of tooling, clamping is compressed on V-type positioning plate, and using pressing plate one by one, 14 parts of a face clamping；Clamping finishes
Afterwards, tooling is rotated by 90 °, and continues clamping parts on the V-type positioning plate in another face, is sequentially completed on four faces of multi-station tooling
The purpose of clamping parts.Using four shaft vertical machining center (i.e. with A axis: turntable), the rotational characteristics of turntable, design four are utilized
A face can clamping parts multi-station tooling, using one folder one top mode clamping multi-station tooling, one on four faces of tooling
56 parts of secondary clamping (every face clamping 14), process at one time.
Determine fixture overall structure:
The overall structure of fixture is big according to the dimension scale of matrix and location structure, part dimension, feed path, cutter
Clip base, quick change construction and location structure are reasonably grouped together by the influence factors such as small, Working position, are realized
Integrated and quick change the function of fixture.By taking flow cam as an example, determines according to its influence factor and determine for 3 on each working face of matrix
Bit architecture.
Clamping centering:
By the reliable and stable clamping of 4 group parts (11) on quick change multi-station clamp, integrated workpiece is formed, by integrated work
Part be fixed on three-jaw and it is top between, angular positioning pin and the beans shape pin on three-jaw only lean on fixture, the bounce of centering annular
Centering band, it is ensured that fixture bounce, with handwheel control turntable rotation, will have plane centering band to be placed on one side and add no more than after 0.01mm
Station is set, i.e., the face normal direction is that Z axis is positive, by turntable angle adjustment by plane centering band centering within 0.005mm, then
Angle zero point is set by the position of turntable at this time, Cutter coordinate system is arranged in dead-center position.
Part processing:
After the completion of debugging, two sleeve clamps are used cooperatively, 4 group part of clamping (12) on every sleeve clamp, normal to produce and process
Type face processing program is moved to next part position of same group part by stage, program in a manner of X-direction increment, often
The processing of a group part is completed, turntable is rotated by 90 ° automatically, next group part is gone to machining position, until completing adding for 4 group parts
After work is complete, turntable reversely returns to angle zero point, and workbench returns to zero point, and the dress that operator carries out integrated workpiece is changed, changed the outfit every time
After the completion, check the bounce of annular centering band whether within 0.01.Since lathe needs 12 parts of continuous cutting, lathe
Stream time is greater than 12 times of single-piece work time, and the operating frequency of operator substantially reduces, so within the time period,
The measurement of operator's not only achievable machined complete part, but also there are enough plenty of time to complete part on another sleeve clamp
Clamping is prepared for next process-cycle.A collection of part 36 according to said method process can save 12 accompany more than the clamping time
It is largely improved with switch gate time, and a large amount of program runtime of saving, utilization rate of equipment and installations.It is mentioned based on the present invention
The contrast effect of the tooling of confession is as shown in table 1.
Table 1
Claims (10)
1. a kind of complete processing technology of small parts, it is characterised in that: the complete processing technology of the small parts include with
Lower step:
1) the clip base mechanism of small parts is determined；
2) set up an organization positioning device in clip base mechanism；
3) location structure of small parts is set in the clip base mechanism of small parts；
4) the multiple small parts of multiple groups are uniformly mounted on the integrated installation face of clip base mechanism, form integrated workpiece, leads to
The location structure for crossing small parts respectively positions the small parts in integrated workpiece；
5) by integrated workpiece be fixed on three-jaw and it is top between, positioned by mechanism positioning device, and to clip base mechanism into
Row centering；
6) after step 5) to be done, multiple groups small parts is successively processed.
2. the complete processing technology of small parts according to claim 1, it is characterised in that: employed in the step 1)
Clip base mechanism be the polygon prism with cylinder grip shank, center hole and centering band；The side of the polygon prism constitutes small
The integrated installation face of type part；The rib number of the polygon prism is N, 3≤N≤5；The transition face of the cylinder grip shank and mounting surface
It is prelocalization step surface；Axis where the cylinder grip shank is vertical with prelocalization step upper thread face；The centering band includes flat
Face centering band and annular centering band.
3. the complete processing technology of small parts according to claim 2, it is characterised in that: the N=4.
4. the complete processing technology of small parts according to claim 3, it is characterised in that: the mechanism in the step 2)
Positioning device is prelocalization step surface, locating centre hole and the limit being defined to position of the clip base mechanism in X-axis
Clip base mechanism is determined in the positioning element of the rotary freedom of A axis；The positioning element includes looking in clip base mechanism
Positive band on the whole and the angular positioning pin and beans shape pin of close cylinder grip shank；The angular positioning pin only leans against beans
On shape pin.
5. the complete processing technology of small parts according to claim 4, it is characterised in that: the location structure is hole hole
Face location structure, face face location structure and face face location structure.
6. the complete processing technology of small parts according to claim 5, it is characterised in that: the specific reality of the step 5)
Existing mode is:
5.1) the uniformly distributed multiple parts of clamping on each integrated installation face of polygon prism, form integrated workpiece；
5.2) by integrated workpiece be fixed on three-jaw and it is top between, angular positioning pin in clip base mechanism and beans shape pin
Only lean on；
5.3) centering annular bounce centering band, it is ensured that the bounce of clip base mechanism is not more than 0.01mm；
5.4) with handwheel control turntable rotation, plane centering band in clip base mechanism is placed in Working position on one side, i.e. the face
Normal direction is that Z axis is positive；
5.5) by turntable angle adjustment by plane centering band centering within 0.005mm, set the position of turntable at this time to
Angle zero point.
7. the complete processing technology of small parts according to claim 6, it is characterised in that: the specific reality of the step 6)
Existing mode is:
6.1) after centering being installed by first set clip base mechanism, to the multiple parts of multiple groups of the gone up clamping of clip base mechanism into
The row production and processing stage: type face processing program is moved to next part of same group part in a manner of X-direction increment
Position, every processing for completing a group part, turntable are rotated by 90 ° automatically, and next group part is gone to machining position, until completing multiple groups
The processing of whole parts, turntable reversely return to angle zero point, and workbench returns to zero point；
6.2) in first set clip base to be done mechanism after the processing of the multiple parts of multiple groups of clamping, the second sleeve clamp base is replaced
Body mechanism checks and corrects the bounce of the annular centering band of the second sleeve clamp matrix mechanism, if within 0.01, repeatedly step
6.1), until completing the processing of the multiple parts of multiple groups of institute's clamping in the second sleeve clamp matrix mechanism.
8. a kind of complete processing tool of small parts, it is characterised in that: the complete processing tool of the small parts includes folder
Have matrix mechanism, mechanism positioning device and small parts location structure；The mechanism positioning device is arranged in clip base machine
On structure；Small parts to be processed is arranged in clip base mechanism by small parts location structure；The clip base mechanism
It is arranged on three axis, half machining center by mechanism positioning device.
9. the complete processing tool of small parts according to claim 8, it is characterised in that: the clip base mechanism is
Polygon prism with cylinder grip shank, center hole and centering band；The side of the polygon prism constitutes the integrated installation of small parts
Face；The rib number of the polygon prism is N, 3≤N≤5；The transition face of the cylinder grip shank and mounting surface is prelocalization step
Face；Axis where the cylinder grip shank is vertical with prelocalization step upper thread face；The centering band include plane centering band and
Annular centering band；The small parts to be processed is arranged on the integrated installation face of polygon prism by small parts location structure；
The mechanism positioning device is the prelocalization step surface being defined to position of the clip base mechanism in X-axis and restriction folder
Has matrix mechanism in the positioning element of the rotary freedom of A axis；The positioning element includes the centering band in clip base mechanism
On the whole and close to cylinder grip shank angular positioning pin and beans shape pin；The beans shape pin only leans against angular fixed
On the pin of position.
10. the complete processing tool of small parts according to claim 8 or claim 9, it is characterised in that: the small parts is fixed
Bit architecture is structure one or structure two；
The structure one includes positioning bottom surface, positioning pin, clamp nut and angular pin；The angular pin and positioning pin are parallel
Setting is on positioning bottom surface；The positioning bottom surface is arranged on the integrated installation face of polygon prism；Axis where the angular pin with
It is vertical to position bottom surface line face；Axis is vertical with positioning bottom surface line face where the positioning pin；Small parts to be processed is sleeved on fixed
On the pin of position；The clamp nut is placed in positioning pin end and compresses small parts to be processed；
The structure two includes V-type item, pressing plate, setting circle pin, the first screw and the second screw；The V-type article passes through the
One screw is fixed on the integrated installation face of polygon prism；Setting circle pin is provided on the V-type item；The pressing plate and V-type item
Opening it is opposite and be connected by the second screw with V-type item；Small parts to be processed is placed between V-type item and pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811368513.2A CN109454456A (en) | 2018-11-16 | 2018-11-16 | The complete processing technology and processing tool of small parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811368513.2A CN109454456A (en) | 2018-11-16 | 2018-11-16 | The complete processing technology and processing tool of small parts |
Publications (1)
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| CN109454456A true CN109454456A (en) | 2019-03-12 |
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ID=65610885
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| CN201811368513.2A Pending CN109454456A (en) | 2018-11-16 | 2018-11-16 | The complete processing technology and processing tool of small parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115139235A (en) * | 2022-05-27 | 2022-10-04 | 山西柴油机工业有限责任公司 | Multi-station rapid clamping device and method for small special-shaped parts |
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Application publication date: 20190312 |