CN106312476A - Method for processing piston inner cavity of middle cylinder - Google Patents
Method for processing piston inner cavity of middle cylinder Download PDFInfo
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- CN106312476A CN106312476A CN201610952214.8A CN201610952214A CN106312476A CN 106312476 A CN106312476 A CN 106312476A CN 201610952214 A CN201610952214 A CN 201610952214A CN 106312476 A CN106312476 A CN 106312476A
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- cylinder body
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
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Abstract
The invention discloses a method for processing a piston inner cavity of a middle cylinder and belongs to the field of quartering hammer processing. The method comprises the steps as follows: firstly, a piston hole and an oil inflow hole are drilled on a boring machine; then, a middle cylinder fixing mechanism is used for location and fixing to guarantee that the middle cylinder is attached to the datum plane; next, static balance debugging is performed for processing; the piston hole is processed firstly, a valve hole and a step surface hole are then processed, and the oil inflow hole and an oil outflow hole are processed with a special tool on a lathe tool shaft bar. The piston inner cavity of the middle cylinder is processed in cooperation with a high-strength cylinder fixing mechanism, the weight of the middle cylinder can be balanced, and the processing precision is high; by means of the processed oil holes, the performance of the middle cylinder can be further improve, and accordingly, the processing quality is greatly improved.
Description
Technical field
The present invention relates to quartering hammer processing technique field, more particularly, it relates to the processing of a kind of middle cylinder piston inner chamber
Method.
Background technology
Quartering hammer is a kind of using hydraulic energy as power, drives with this and is positioned at the piston within hydraulic cylinder upper cylinder body and carries out
Moving back and forth, beat drill steel by piston, to transmit energy to drill steel, the energy on drill steel is absorbed by by impact object again,
Thus will be by the impact important engineering machinery that smashes of object, be mainly used in construction crushes, removes, excavates the works such as hard formation
Make, be typically mounted on excavator, loader or power station, have that impulsive force is big, easy to use, mobility is good and efficiency is high
Advantage.Along with the development of hydraulic technique, hydraulic breaking hammer application in society's all trades and professions is more and more extensive, from initial use
In bore operation and the second-time breakage of large rock mass of mine rock engineering, develop into have been used to tunneling, dismounting today
Road and bridge and building, broken Colophonium and concrete road surface and remove smelted furnace cinder and carry out underwater performance etc. due to its work
The effect that motility and the raising to labor productivity thereof are played, increasingly receives mine and the attention of construction department, has
It is widely applied prospect and huge market demand.
In quartering hammer, the major function of cylinder body is to be realized with coordinating of valve opening by piston hole, as it is shown in figure 1, owing to setting
Be equipped with valve opening, middle cylinder body must have a part for biasing, causes piston hole actually not at the middle cylinder body of rectangular configuration
Centre.Piston hole is relatively big relative to valve opening size, causes center of gravity to offset to side, valve opening place, and is doing piston hole into one
Step adds man-hour, and its rotary inertia is uneven, therefore cannot directly process on engine lathe.
When there is relatively large eccentricity power, speed is the biggest, and the eccentric rotary inertia of eccentric part is the biggest, adds piston hole in man-hour
Deflection is the biggest, and small-sized middle cylinder body is easier to fix, for large-scale middle cylinder body, if rotary inertia is not balanced, and will
There will be the biggest error, cause product defective.Therefore, after mostly prior art being by simple fixing tool clamping,
Balance eccentric force by balancing weight, thus reduce the offset adding man-hour.
Chinese patent such as bulletin on April 30th, 2014: ZL 201320631864.4, this application case discloses a kind of liquid
Cylinder body parallel hole clamp for machining in pressure quartering hammer, is made up of connection dish, posting, pressing plate, bolt and balancing weight, posting interior
Wall is shaped as solid rectangle, and middle cylinder body is placed in posting, and posting inside wall height adds two parallel holes equal to middle height of cylinder
Distance, the revolution of the inwall width face matched in clearance of the wide face of middle cylinder body and frame and the central cross-section of inwall width and machine-tool
Dead in line；One side in posting inside wall height is equal in middle height of cylinder to the vertical dimension of machine-tool axis of rotation
One side to the axially bored line distance in two parallel holes, the another side in posting inside wall height to machine-tool axis of rotation vertical
Straight distance is equal to another axially bored line distance in the another side in middle height of cylinder to two parallel holes.
This patent formula seems the processing that can carry out two parallel holes, the most substantially can be real for small-sized middle cylinder body
Existing, but for large-scale middle cylinder body, there is 0.25m in its cross section2, length is up to 1m, if balancing its gravity simply by balancing weight,
It it is the effect being extremely difficult to reduce offset.On the other hand, for large-scale middle cylinder body, fixed mechanism needs enough strong
Degree, the precision of size is inseparable with the stability of fixed structure.Even so, even if the program can be applicable to large-scale cylinder
Body, its side needs to coordinate with the sidewall spacers of fixing device, then be also only used for the processing of the middle cylinder body of a kind of specification, right
In the middle cylinder body that size is the most different, to be also separately provided its fixer for machining, either cost or efficiency aspect are all relatively
Big influence factor, actual operability is poor.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome cylinder body weight in prior art big and be difficult to the deficiency of piston hole, it is provided that
The processing method of a kind of middle cylinder piston inner chamber, the present invention carries out middle cylinder piston with the use of the cylinder body fixed mechanism of high intensity
The processing of inner chamber, this device can the weight of centering cylinder body be balanced, and machining accuracy is high；The processing of oilhole also can change further
In kind, the performance of cylinder body, substantially increases crudy.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of processing method of the middle cylinder piston inner chamber of the present invention, its course of processing is:
1) process middle cylinder blank lateral surface to requiring size, then middle cylinder blank is fixed on boring table
On, tentatively bore piston hole；Then adjust angle, process fuel feed hole to requiring size；
2) middle cylinder body is lifted in cylinder body fixed mechanism, is placed on the reference block of bottom surface, and make the inner patch of middle cylinder body
Living end face reference block, by the preliminary pretension of fastening bolt, the side of middle cylinder body touch sidewall reference block；
3) whether the bottom surface and the side that utilize cylinder body in centimeter check have inclination, and are adjusted according to testing result；
On screw rod, it is inserted in pressing plate after adjustment, tightens cylinder body in each bolt handle and be fixed；Again detect, if qualified, complete solid
Fixed；
4) in basis, the specification of cylinder body selects balancing weight, is rotationally connected dish and carries out static balance debugging, starts after having debugged
Processing；
5) set processor at numerically controlled lathe, start lathe, start turnery processing piston hole, process piston simultaneously
Oil groove in hole, stays 0.6～1.0mm surplus；
6) then car valve opening, the terrace hole in valve opening turning post-treatment valve opening；
7) fixing lathe tool axostylus axostyle on lathe chuck, in feeding station, fixing middle cylinder body, processes oil-in and oil-out；
8) carry out grinding process, complete the processing of middle inner chamber of cylinder block.
As further improvement of the present invention, described cylinder body fixed mechanism and the attic base phase in lathe rotary shaft
Even, this cylinder body fixed mechanism includes connection dish, sidewall baffle plate and the supporting plate being mutually perpendicular to be connected, and rotary shaft is crossed in the middle section of supporting plate
Axis, and two pieces of sidewall baffle plates are symmetrical arranged about the middle section of supporting plate；The side deviating from supporting plate on sidewall baffle plate is provided with
Two parallel screw rods, two corresponding screw rods are installed pressing plate cylinder body in compressing；Connection dish is also equipped with joining
Pouring weight, this balancing weight is located remotely from the side of supporting plate, and balancing weight is symmetrical arranged about the middle section of supporting plate.
As further improvement of the present invention, the center of connection dish is inserted in the end of described rotary shaft after passing an attic base
Hole, and back-up ring is installed in rotary shaft end, this back-up ring is threadeded with rotary shaft.
As further improvement of the present invention, the circumference of described attic base is evenly equipped with at least 3 claws, and this claw engages
Outer rim at connection dish；Be provided with at least 3 pieces of end face reference blocks on connection dish, this end face reference block distance rotary shaft axis away from
From identical.
As further improvement of the present invention, the distance of the bottom surface reference block upper surface distance rotary shaft axis on supporting plate
Identical with the axis in the middle cylinder body upper piston hole distance away from its lower surface.
As further improvement of the present invention, described supporting plate be connected dish by being welded to connect, and supporting plate be connected
Being provided with strengthening stud and the 3rd gusset between dish, the 3rd gusset is positioned at the middle section of supporting plate, and strengthening stud is about supporting plate
Middle section is symmetrical.
As further improvement of the present invention, two pieces of described sidewall baffle plates are correspondingly arranged respectively sidewall reference block,
Compact heap, compact heap is arranged on sidewall baffle plate by fastening bolt；Described sidewall reference block and the centrage of compact heap and work
The axis of consent is contour.
As further improvement of the present invention, described sidewall baffle plate be connected between dish be provided with strengthening stud, first
Gusset and the second gusset, the second gusset is vertical with sidewall baffle plate；Face, screw rod place on first link of boards sidewall baffle plate.
As further improvement of the present invention, step 7) described in be provided with the second bolt and the 3rd spiral shell on lathe tool axostylus axostyle
Bolt, the direction being perpendicular to the second bolt and the 3rd bolt on lathe tool axostylus axostyle offers installing hole, corresponding installation the first oilhole car
Cutter, the second oilhole lathe tool.
As further improvement of the present invention, lathe tool axostylus axostyle is additionally provided with the first bolt, is used for preventing lathe tool axostylus axostyle
Rotate.
3. beneficial effect
The technical scheme using the present invention to provide, compared with prior art, has the advantages that
(1) processing method of a kind of middle cylinder piston inner chamber of the present invention, utilizes cylinder body fixed mechanism and balancing weight to put down
The eccentric gravity of cylinder body in weighing apparatus, the sidewall baffle plate in its cylinder body fixed mechanism and the cuboid structure of supporting plate one opening of formation,
Itself also having bigger eccentric gravity, its eccentric gravity matches with the eccentric gravity of middle cylinder body, then auxiliary utilizes balancing weight
Carry out gravitational equilibrium, there is preferable counterbalance effect, be favorably improved the machining accuracy of piston hole；
(2) processing method of a kind of middle cylinder piston inner chamber of the present invention, is connected the centre bore of connection dish with rotary shaft,
The outer rim of connection dish is connected with an attic base by claw, substantially increases the bearing capacity of rotary shaft, it is to avoid rotary shaft end is because being subject to
Power flexural deformation relatively greatly；Additionally, connection dish is the main support mechanism of cylinder body fixed mechanism, by claw outside connection dish
It is fastened in week on an attic base, makes cylinder body fixed mechanism be difficult to relatively rotate Axial and radial when rotating and swing, it is possible to overcome certain
Eccentric force, structural strength is also improved significantly；
(3) processing method of a kind of middle cylinder piston inner chamber of the present invention, is provided with end face base on cylinder body fixed mechanism
Quasi-block, bottom surface reference block and sidewall reference block, position in three directions, it is ensured that the accuracy of location, make piston hole axle
Line can be with the dead in line of rotary shaft；Set gusset and strengthening stud can increase structural strength, prevent because cylinder body is solid
Determine the self-strength defect of mechanism and affect machining accuracy；
(4) processing method of a kind of middle cylinder piston inner chamber of the present invention, fixes oilhole lathe tool on lathe tool axostylus axostyle and carries out
Oil-in and the processing of oil-out, working (machining) efficiency is high；Additionally, the processing of the section holes first carried out in valve opening, the most just process
Hydraulic fluid port, after processing will not crimping, burr is few；Procedure arrangement is reasonable, and principle is simple, it is simple to promote the use of.
Accompanying drawing explanation
Fig. 1 by the structural representation of cylinder body in processing；
Fig. 2 is the main TV structure schematic diagram of the middle cylinder body fixed mechanism of the present invention；
Fig. 3 is the partial enlargement structural representation of A in Fig. 2 of the present invention；
Fig. 4 is the side-looking structural representation of the middle cylinder body fixed mechanism of the present invention；
Fig. 5 is the plan structure schematic diagram of the middle cylinder body fixed mechanism of the present invention；
Fig. 6 is the structural representation of the first lightening hole in the present invention；
Fig. 7 is the structural representation of oilhole lathe tool in the present invention；
Fig. 8 is the work flow schematic diagram of the middle cylinder piston inner chamber of the present invention.
Label declaration in schematic diagram: 11, prop up attic base；12, rotary shaft；13, claw；21, connection dish；22, balancing weight；
23, end face reference block；24, strengthening stud；25, back-up ring；26, cutting ferrule；31, sidewall baffle plate；32, screw rod；33, pressing plate；34, first
Gusset；35, sidewall reference block；36, compact heap；37, fastening bolt；38, the second gusset；39, the first lightening hole；41, supporting plate；
42, the 3rd gusset；43, bottom surface reference block；44, the second lightening hole；51, the first bolt；52, lathe tool axostylus axostyle；53, the second bolt；
54, the first oilhole lathe tool；55, the 3rd bolt；56, the second oilhole lathe tool；57, cone tank；61, piston hole；62, oil-out；63、
Fuel feed hole；64, oil-in.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 2, the processing method of a kind of middle cylinder piston inner chamber of the present embodiment, cylinder body fixed mechanism is used to live
The processing of plug inner chamber, cylinder body fixed mechanism is connected with the attic base 11 in lathe rotary shaft 12, and this cylinder body fixed mechanism includes phase
The most vertical connection dish 21, sidewall baffle plate 31 and the supporting plate 41 being connected, i.e. sidewall baffle plate 31 and supporting plate 41 is each perpendicular to connection dish 21,
And fix connection with being connected dish 21, as shown in Figure 2, supporting plate 41 is horizontally disposed with, and sidewall baffle plate 31 is vertically arranged, and sidewall baffle plate
The lower end of 31 is fixing with supporting plate 41 to be connected.The axis of rotary shaft 12 is crossed in the middle section of supporting plate 41, and two pieces of sidewall baffle plates 31 about
The middle section of supporting plate 41 is symmetrical arranged.
Common fixed mechanism can directly arrange a rectangular configuration and fix middle cylinder body, and this structure itself is the heaviest,
And do not account for the eccentric weight of middle cylinder body, if but three fixed plates are only set, then cannot position and fix middle cylinder body.
For this problem, in the present embodiment, only three faces are provided with fixing plate, and a side opening relative with supporting plate 41, on sidewall baffle plate 31
The side deviating from supporting plate 41 is provided with two parallel screw rods 32, two corresponding screw rods 32 is installed pressing plate 33 and is used for compressing
Middle cylinder body.
As shown in Fig. 2, Fig. 4, screw rod 32 is perpendicular to supporting plate 41, arranges two screw rods 32 on every piece of sidewall baffle plate 31,
The pressing plate 33 that then can have two pieces of horizontally sets can be used for cylinder body in compression.Although the valve opening place amount of stressing is relatively big on middle cylinder body,
Top can be located at, then the weight of supporting plate 41 can be used to the offset of cylinder body in balance during placement.General through torr
After plate 41 is balanced, offset can be transformed into side, supporting plate 41 place.And then balancing weight 22 can be installed on connection dish 21, this is joined
Pouring weight 22 is located remotely from the side of supporting plate 41, and balancing weight 22 is symmetrical arranged about the middle section of supporting plate 41.Balancing weight 22 has many
Weight-normality lattice, are disc, varying in weight of the balancing weight of different size, can carry out eccentric adjustment by balancing weight 22,
After installing cylinder body, connection dish 21 reaches static balance, and reaches preferable dynamic balancing effect simultaneously.
In conjunction with Fig. 3, in order to increase structural strength, connection dish 21 is inserted after an attic base 11 in the end of described rotary shaft 12
Centre bore, and rotary shaft 12 end install back-up ring 25, this back-up ring 25 is threadeded with rotary shaft 12.For anti-Sealing shield ring 25
Getting loose, the most threaded in rotary shaft 12 have cutting ferrule 26, and this cutting ferrule 26 can be used for locking back-up ring 25.The centre bore of connection dish 21
For shoulder hole, back-up ring 25 is also hierarchic structure, then back-up ring 25 can carry out axial limiting to connection dish 21 by hierarchic structure.This
Outward, the circumference of an attic base 11 is evenly equipped with at least 3 claws 13, and this claw 13 is fastened on the outer rim of connection dish 21.By claw handle
The peripheral snap of connection dish 21, on an attic base 11, makes cylinder body fixed mechanism be difficult to when rotating relatively rotate axle 12 radially pendulum
Dynamic, it is possible to overcoming certain eccentric force, structural strength is also improved significantly.
Embodiment 2
The basic structure of the cylinder body fixed mechanism in the present embodiment is same as in Example 1, and its difference is: connection dish
Being provided with 4 pieces of end face reference blocks 23 on 21, this end face reference block 23 is identical apart from the distance of rotary shaft 12 axis, end face reference block
23 are along the circumferential direction spacedly distributed, and central angle folded by the most adjacent two end face reference blocks 23 is 90 °.
Supporting plate 41 upper surface is provided with bottom surface reference block 43, and as shown in Figure 2, bottom surface reference block 43 is along pallet length side
To being provided with two row, and the position of the position of bottom surface reference block 43 and pressing plate 33 is the most corresponding, compresses utilizing pressing plate 33 to apply
During power, the lower section of middle cylinder body is propped up by bottom surface reference block 43, and the point of application is corresponding with the strong point, is on the one hand prevented from middle cylinder body
Upper stress point is in add and occurs that stress is concentrated man-hour, on the other hand it can be avoided that in when stress cylinder body occur upwarping or the most inclined
From benchmark phenomenon.Make bottom surface reference block 43 upper surface distance rotary shaft 12 axis distance and middle cylinder body upper piston hole axis away from
The distance of its lower surface is identical, then fix the axis in back piston hole and the dead in line of rotary shaft 12.
In like manner, as shown in Figure 4, two pieces of sidewall baffle plates 31 are correspondingly arranged sidewall reference block 35, compact heap 36 respectively, i.e. exist
The inner side of the sidewall baffle plate 31 on right side arranges sidewall reference block 35, and the inner side of the sidewall baffle plate 31 in left side arranges compact heap 36, pressure
Tight block 36 is arranged on sidewall baffle plate 31 by fastening bolt 37；Described sidewall reference block 35 and the centrage of compact heap 36 and work
The axis of consent is contour.On the one hand, sidewall reference block 35 and the contour setting of compact heap 36 so that it is can be mutually corresponding, reduces solid
The fixed error caused；On the other hand, its center is also contour with the axis of piston hole, adds and rotates around the axis of piston hole man-hour, when
Time contour with piston hole axis, stress point line passes through center, it is easier to fixing, stability is also improved.
In the present embodiment, supporting plate 41 passes through to be welded to connect with being connected dish 21, and is provided with being connected between dish 21 at supporting plate 41
Strengthening stud 24 and the 3rd gusset 42, the 3rd gusset 42 is positioned at the middle section of supporting plate 41, and the lower surface of supporting plate 41 is inclined-plane,
Away from the side of connection dish 21 closer to supporting plate ground.The gravity of cylinder body fixed mechanism is relatively big, after long-term use, it is easy to
Lower bending, and the 3rd set gusset 42 has auxiliary supporting role, balancing gravity.It addition, the following table of the 3rd gusset 42
Face is arranged to inclined-plane, and directivity is more preferable, more meets mechanical structure requirement.
Side opening at supporting plate 41 is provided with bolt hole, and the 3rd gusset 42 offers screwed hole, and strengthening stud 24 is through spiral shell
Screwed hole engagement on keyhole and the 3rd gusset 42, and strengthening stud 24 is symmetrical about the middle section of supporting plate 41.Common
Two boards can be linked together although being welded to connect, occurring stress to concentrate in the case of stress is relatively big, being easy to
Fracture.The present embodiment is provided with bolt in junction, makes two boards connect as one, and strengthening stud 24 has skeleton
Effect, structural strength is higher.And adding man-hour, first use 24 the 3rd gussets 42 of strengthening stud to be located by connecting with being connected dish 21
Together, it is welded to connect the most again.Bolt connects stress deformation when can overcome welding, jointly carries with welding portion
Gravity.Bolt connection is carried out, then shank of bolt only just can carry, no after plate bends if using first to be welded on
Can carry with welding portion simultaneously.
What deserves to be explained is, the present embodiment is symmetrical about the middle section of supporting plate 41 strengthening stud 24, and supporting plate 41 exists
Middle part is supported, and strengthening stud 24 is supported in both sides, and strong point height is different, forms three-dimensional supported at three point, significantly
Improve the structural strength of cylinder body fixed structure.
Embodiment 3
The basic structure of the cylinder body fixed mechanism in the present embodiment is same as in Example 2, and its difference is: combine figure
5, in the present embodiment, sidewall baffle plate 31 is provided with strengthening stud the 24, first gusset 34 and the second gusset 38 with being connected between dish 21,
Second gusset 38 is vertical with sidewall baffle plate 31；First gusset 34 connects face, screw rod 32 place on sidewall baffle plate 31.First gusset 34
Being fixed sidewall baffle plate from different directions with the second gusset 38, the second gusset 38 is more than piston hole apart from the height of supporting plate 41
Axis is relative to the height of supporting plate 41, and closer to integrally-built center, support strength is higher.
In order to alleviate overall weight, sidewall baffle plate 31 is provided with the first lightening hole 39, as shown in Figure 6, this first loss of weight
Hole 39 is circular port.Additionally, this circular port can also carry out detection and localization, adjustment easy to setup.It is provided with second on supporting plate 41 to subtract
Repeated hole 44, this second lightening hole 44 can alleviate pallets weight, reduces the use of balancing weight, relies on structure self to be balanced.
Embodiment 4
In conjunction with the middle cylinder body fixed mechanism of above example, present embodiments provide the processing of a kind of middle cylinder piston inner chamber
Method, in conjunction with Fig. 8, its course of processing is:
1) process middle cylinder blank lateral surface to requiring size, then middle cylinder blank is fixed on boring table
On, preliminary brill piston hole 61；Then adjust angle, process fuel feed hole 63 to requiring size.
2) middle cylinder body is lifted in cylinder body fixed mechanism, is placed on bottom surface reference block 43, and make the inner of middle cylinder body
Touching end face reference block 23, by the preliminary pretension of fastening bolt 37, the side of middle cylinder body touch sidewall reference block 35；The present embodiment
The inner of the middle cylinder body of middle indication is left end in Fig. 1, with prominent cervical region.
3) whether the bottom surface and the side that utilize cylinder body in centimeter check have inclination, and are adjusted according to testing result；
On screw rod 32, it is inserted in pressing plate 33 after adjustment, tightens cylinder body in each bolt handle and be fixed；Again detect, if qualified, complete
Become fixing.If defective, it is adjusted by the specification changing pad.
4) in basis, the specification of cylinder body selects balancing weight 22, is rotationally connected dish 21 and carries out static balance debugging, if the company of rotation
After flange 21, connection dish 21 can stop at an arbitrary position, then explanation reaches static balance, starts processing after having debugged.Due to
Overall weight is relatively big, is sometimes difficult to complete static balance, it is allowed to have certain deviation.
5) set processor at numerically controlled lathe, start lathe, start turnery processing, process oil groove simultaneously, stay
0.8mm surplus；The cutter head angle of institute's use lathe tool is 55 °, and processing tool cutting edge angle is 93 °.In Fig. 1, there is oil groove in piston hole 61, make
With this cutter can one-pass from right to left, without changing cutter.After processing oil groove, turn direction, again clamping, so
After processing left neck in seal groove.
6) then car valve opening, the terrace hole in valve opening turning post-treatment valve opening.
During car valve opening, can go out valve opening and terrace hole by the preliminary car of numerically controlled lathe now, stay 0.5mm surplus, then in processing
Center carries out finish turning, is worked into and requires size.
7) step 6) in valve opening process after, need to process oil-in 64 and oil-out 62, fixing on lathe chuck
Lathe tool axostylus axostyle 52, in feeding station, fixing middle cylinder body, processes oil-in 64 and oil-out 62 successively.Also can fix first simultaneously
Oilhole lathe tool 54 and the second oilhole lathe tool 56, process at one time oil-in 64 and oil-out 62.
Referring to Fig. 7, lathe tool axostylus axostyle 52 is provided with the second bolt 53 and the 3rd bolt 55, lathe tool axostylus axostyle 52 is perpendicular to
The direction of the second bolt 53 and the 3rd bolt 55 offers installing hole, corresponding installation first oilhole lathe tool the 54, second oilhole lathe tool
56.If processing according to sequencing, a lathe tool can be installed every time, be processed respectively；If process simultaneously, need
Want first according to oil-in 64 and oil-out 62 working depth, adjust the height of first oilhole lathe tool the 54, second oilhole lathe tool 56,
The highest lathe tool first starts processing, and when being worked into contour, two lathe tools are processed simultaneously, and operation is simple, substantially increases and adds
Work efficiency rate.
Lathe tool axostylus axostyle 52 can be divided into three sections, and first paragraph is used for clamping, this part is provided with the first bolt 51, is used for preventing
Lathe tool axostylus axostyle 52 rotates；Second segment is used for fixed cutting tool, and the end of the 3rd section is provided centrally with cone tank 57, and the 3rd section of end is stretched
Go out the end of middle cylinder body, withstand cone tank with the thimble on lathe, it is ensured that will not deform adding lathe tool axostylus axostyle in man-hour 52.
8) carry out grinding process, complete the processing of middle inner chamber of cylinder block.
The present invention carries out the processing of middle cylinder piston inner chamber with the use of the cylinder body fixed mechanism of high intensity, and this device can
The weight of centering cylinder body is balanced, and machining accuracy is high；The processing of oilhole also can improve further in the performance of cylinder body；Additionally,
First carry out the processing of section holes in valve opening, the most just process hydraulic fluid port, after processing will not crimping, burr is few, substantially increases
Crudy.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, institute in accompanying drawing
Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. the processing method of cylinder piston inner chamber in a kind, it is characterised in that: its course of processing is:
1) in processing, cylinder blank lateral surface, to requiring size, is then fixed on middle cylinder blank on boring table, tentatively
Bore piston hole (61)；Then adjust angle, process fuel feed hole (63) to requiring size；
2) middle cylinder body is lifted in cylinder body fixed mechanism, is placed on bottom surface reference block (43), and make the inner patch of middle cylinder body
Living end face reference block (23), by the preliminary pretension of fastening bolt (37), the side of middle cylinder body touch sidewall reference block (35)；
3) whether the bottom surface and the side that utilize cylinder body in centimeter check have inclination, and are adjusted according to testing result；Adjust
After on screw rod (32), be inserted in pressing plate (33), tighten each bolt in cylinder body be fixed；Again detect, if qualified, complete
Become fixing；
4) in basis, the specification of cylinder body selects balancing weight (22), is rotationally connected dish (21) and carries out static balance debugging, after having debugged
Start processing；
5) set processor at numerically controlled lathe, start lathe, start turnery processing piston hole, process in piston hole simultaneously
Oil groove, stay 0.6～1.0mm surplus；
6) then car valve opening, the terrace hole in valve opening turning post-treatment valve opening；
7) fixing lathe tool axostylus axostyle (52) on lathe chuck, in feeding station, fixing middle cylinder body, processes oil-in (64) and goes out
Hydraulic fluid port (62)；
8) carry out grinding process, complete the processing of middle inner chamber of cylinder block.
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 1, it is characterised in that: described cylinder body is solid
Determining mechanism to be connected with the attic base (11) in lathe rotary shaft (12), this cylinder body fixed mechanism includes the connection being mutually perpendicular to be connected
Dish (21), sidewall baffle plate (31) and supporting plate (41), the axis of rotary shaft (12), and two pieces of sidewall gears are crossed in the middle section of supporting plate (41)
Plate (31) is symmetrical arranged about the middle section of supporting plate (41)；The side deviating from supporting plate (41) on sidewall baffle plate (31) is provided with two
Parallel screw rod (32), two corresponding screw rods (32) are installed pressing plate (33) cylinder body in compressing；In connection dish (21)
On be also equipped with balancing weight (22), this balancing weight (22) is located remotely from the side of supporting plate (41), and balancing weight (22) is about supporting plate
(41) middle section is symmetrical arranged.
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 2, it is characterised in that: described rotary shaft
(12) centre bore of connection dish (21) is inserted afterwards through an attic base (11) in end, and installs back-up ring in rotary shaft (12) end
(25), this back-up ring (25) is threadeded with rotary shaft (12).
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 2, it is characterised in that: described attic base
(11) circumference is evenly equipped with at least 3 claws (13), and this claw (13) is fastened on the outer rim of connection dish (21)；On connection dish (21)
Being provided with at least 3 pieces of end face reference blocks (23), the distance of this end face reference block (23) distance rotary shaft (12) axis is identical.
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 2, it is characterised in that: on supporting plate (41)
The distance of bottom surface reference block (43) upper surface distance rotary shaft (12) axis and the axis in middle cylinder body upper piston hole are away from its lower surface
Distance identical.
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 5, it is characterised in that: described supporting plate (41)
Pass through to be welded to connect with being connected dish (21), and be provided with strengthening stud (24) and the 3rd at supporting plate (41) with being connected between dish (21)
Gusset (42), the 3rd gusset (42) is positioned at the middle section of supporting plate (41), and strengthening stud (24) is about the middle section of supporting plate (41)
Symmetrical.
7. according to the processing method of a kind of middle cylinder piston inner chamber according to any one of claim 2～6, it is characterised in that:
Being correspondingly arranged sidewall reference block (35), compact heap (36) respectively on two pieces of described sidewall baffle plates (31), compact heap (36) passes through
Fastening bolt (37) is arranged on sidewall baffle plate (31)；Described sidewall reference block (35) and the centrage of compact heap (36) and piston
The axis in hole is contour.
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 7, it is characterised in that: described sidewall baffle plate
(31) it is provided with strengthening stud (24), the first gusset (34) and the second gusset (38), the second gusset with being connected between dish (21)
(38) vertical with sidewall baffle plate (31)；First gusset (34) connects upper screw rod (32) face, place of sidewall baffle plate (31).
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 1, it is characterised in that: step 7) described in
It is provided with the second bolt (53) and the 3rd bolt (55) on lathe tool axostylus axostyle (52), lathe tool axostylus axostyle (52) is perpendicular to the second bolt
(53) and the direction of the 3rd bolt (55) offers installing hole, corresponding first oilhole lathe tool (54), the second oilhole lathe tool are installed
(56)。
The processing method of a kind of middle cylinder piston inner chamber the most according to claim 9, it is characterised in that: lathe tool axostylus axostyle
(52) it is additionally provided with the first bolt (51) on, is used for preventing lathe tool axostylus axostyle (52) from rotating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610952214.8A CN106312476A (en) | 2016-10-27 | 2016-10-27 | Method for processing piston inner cavity of middle cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952214.8A CN106312476A (en) | 2016-10-27 | 2016-10-27 | Method for processing piston inner cavity of middle cylinder |
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| CN106312476A true CN106312476A (en) | 2017-01-11 |
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| CN201610952214.8A Pending CN106312476A (en) | 2016-10-27 | 2016-10-27 | Method for processing piston inner cavity of middle cylinder |
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Application publication date: 20170111 |