CN107336052B - Cylinder head bottom surface, bottom hole, spark-plug hole and camshaft hole fixture for processing - Google Patents
Cylinder head bottom surface, bottom hole, spark-plug hole and camshaft hole fixture for processing Download PDFInfo
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- CN107336052B CN107336052B CN201710810382.8A CN201710810382A CN107336052B CN 107336052 B CN107336052 B CN 107336052B CN 201710810382 A CN201710810382 A CN 201710810382A CN 107336052 B CN107336052 B CN 107336052B
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a kind of cylinder head bottom surfaces, bottom hole, spark-plug hole and camshaft hole fixture for processing, including bottom plate and the first lever cylinder being set on bottom plate, second lever cylinder, first corner cylinder, second corner cylinder, third corner cylinder, 4th corner cylinder, first position-limit mechanism, second position-limit mechanism, third position-limit mechanism, linear cylinder and multiple positioning pins, first position-limit mechanism and the second position-limit mechanism are for building position-limiting action to cylinder in a second direction, third position-limit mechanism is for building position-limiting action to cylinder in a first direction, first direction and second direction are perpendicular.Fixture of the invention can realize when cylinder head carries out the processing of half finish-milling bottom surface, the bottom surface hole machined that drills and reams, spark-plug hole roughing and camshaft hole roughing and fix to the clamping of cylinder head that versatility is good.
Description
Technical field
The invention belongs to clamp arts, specifically, the present invention relates to a kind of cylinder head bottom surfaces, bottom hole, spark
Consent and camshaft hole fixture for processing.
Background technique
Currently, most of cylinder cover of automobile engine are in the processing of half finish-milling bottom surface of progress, drill and ream bottom surface hole machined, spark plug
When hole roughing and camshaft hole roughing, it need to be used to carry out clamping to cylinder head using different fixtures respectively to fix, fixture
Without versatility, cause fixture input cost big, and a variety of different fixtures occupy biggish storage area.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of gas
Cylinder cover bottom surface, bottom hole, spark-plug hole and camshaft hole fixture for processing, it is therefore an objective to cylinder head can be suitable for and carrying out half essence
The clamping of cylinder head is fixed when milling bottom surface processing, the bottom surface hole machined that drills and reams, spark-plug hole roughing and camshaft hole roughing.
To achieve the goals above, the technical scheme adopted by the invention is as follows: cylinder head bottom surface, bottom hole, spark-plug hole and
Camshaft hole fixture for processing, including bottom plate and the first lever cylinder being set on bottom plate, the second lever cylinder, the first corner
It is cylinder, the second corner cylinder, third corner cylinder, the 4th corner cylinder, the first position-limit mechanism, the second position-limit mechanism, third position-limit mechanism, straight
Line cylinder and multiple positioning pins, the first lever cylinder and the second lever cylinder, the first corner cylinder and the second corner cylinder, third corner cylinder and
Four corner cylinders, the first position-limit mechanism and the second position-limit mechanism, third position-limit mechanism and linear cylinder are respectively at and first direction phase
On parallel same straight line, the first lever cylinder and third corner cylinder, the second lever cylinder and the 4th corner cylinder, the first corner cylinder and
Three position-limit mechanisms, the second corner cylinder and linear cylinder are respectively on the same straight line parallel with second direction, the first position restrainer
Structure and the second position-limit mechanism are for building position-limiting action to cylinder in a second direction, and third position-limit mechanism is in a first direction
On position-limiting action is built to cylinder, first direction and second direction are perpendicular.
The first direction is the length direction of the bottom plate, and the second direction is the width direction of bottom plate.
First corner cylinder has the pressing plate that contact with cylinder head, and second corner cylinder with cylinder head with contacting
The pressing plate of pressing plate, the first corner cylinder and the second corner cylinder makes rotating motion and moves along a straight line, the first corner cylinder and the second corner
The rotation centerline of the pressing plate of cylinder is parallel with second direction, and the first corner cylinder and the second corner cylinder are used to apply edge to cylinder head
Cylinder head is resisted against on first position-limit mechanism and the second position-limit mechanism by the pressure of second direction.
The linear cylinder is to be oppositely arranged with the third position-limit mechanism, and linear cylinder is used to apply along first party cylinder head
To pressure, cylinder head is resisted against on third position-limit mechanism.
The multiple positioning pin includes the first positioning pin, the second positioning pin, third positioning pin being set on the bottom plate
With the 4th positioning pin, the first positioning pin and the second positioning pin, third positioning pin and the 4th positioning pin is respectively at and first direction
On parallel same straight line, the first positioning pin is matched with first lever cylinder, the second positioning pin and second lever
Cylinder matches, and third positioning pin is matched with the third corner cylinder, and the 4th positioning pin is matched with the 4th corner cylinder.
The third corner cylinder has the pressing plate that contact with cylinder head, and the 4th corner cylinder with cylinder head with contacting
The pressing plate of pressing plate, third corner cylinder and the 4th corner cylinder makes rotating motion and moves along a straight line, third corner cylinder and the 4th corner
The rotation centerline of the pressing plate of cylinder is parallel with third direction, and third corner cylinder and the 4th corner cylinder are used to apply edge to cylinder head
Cylinder head is pressed on the third positioning pin and the 4th positioning pin by the pressure of third direction, third direction and described first
Direction and second direction are perpendicular.
Cylinder head bottom surface, bottom hole, spark-plug hole and the camshaft hole fixture for processing includes being set to the bottom
The first positioning column, the second positioning column and third positioning column on plate, the first positioning column and the second positioning column are in and described first
On the parallel same straight line in direction and the first positioning column and the second positioning column are located at first position-limit mechanism and described second
Between lever cylinder, third positioning column is between first corner cylinder and the third position-limit mechanism.
First position-limit mechanism include the first limit base being connect with the bottom plate and be set on the first limit base and
The first spacer pin for contacting with cylinder head, the axis of the first spacer pin are parallel with the second direction.
Second position-limit mechanism include the second limit base being connect with the bottom plate and be set on the second limit base and
The second spacer pin for contacting with cylinder head, the axis of the second spacer pin are parallel with the second direction.
The third position-limit mechanism include the third limit base being connect with the bottom plate and be set on third limit base and
Third spacer pin for contacting with cylinder head, the axis of third spacer pin are parallel with the second direction.
Fixture of the invention, can be thick in cylinder head progress half finish-milling bottom surface processing, the bottom surface hole machined that drills and reams, spark-plug hole
It is realized when processing and camshaft hole roughing and the clamping of cylinder head is fixed, versatility is good, and can be realized to engine air
The accurate clamping of cylinder cap and positioning improve the machining accuracy and processing efficiency of cylinder head, also improve clamping efficiency and clamping
Reliability.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of present clip；
Fig. 2 is the main view of present clip；
Fig. 3 is the top view of present clip；
Fig. 4 is the side view of present clip；
Fig. 5 is the bottom view of cylinder head；
Fig. 6 is the side view of cylinder head；
Fig. 7 is the top view of cylinder head；
In the figure, it is marked as
1, the first positioning column；2, the first lever cylinder；201, pressing plate；3, the second lever cylinder；301, pressing plate；4, the first corner
Cylinder；401, pressing plate；5, the second corner cylinder；501, pressing plate；6, third corner cylinder；601, pressing plate；7, the 4th corner cylinder；701, it presses
Plate；8, bottom plate；9, the second positioning column；10, third positioning column；11, the first limit base；12, the first spacer pin；13, the second limit
Seat；14, the second spacer pin；15, third limit base；16, third spacer pin；17, linear cylinder；18, the first positioning pin；19, second
Positioning pin；20, third positioning pin；21, the 4th positioning pin；22, top surface；23, bottom surface；24, first end face；25, second end face；
26, air inlet side；27, it is vented side；28, camshaft case；29, cylinder head body；30, bottom hole；31, spark-plug hole；32,
Camshaft hole.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
As shown in Figures 1 to 4, the present invention provides a kind of cylinder head bottom surface, bottom hole, spark-plug hole and camshaft holes to add
Work fixture, including bottom plate 8 and the first lever cylinder 2 being set on bottom plate 8, the second lever cylinder 3, the first corner cylinder 4, second
Corner cylinder 5, third corner cylinder 6, the 4th corner cylinder 7, the first position-limit mechanism, the second position-limit mechanism, third position-limit mechanism, linear cylinder
17 and multiple positioning pins, the first lever cylinder 2 and the second lever cylinder 3, the first corner cylinder 4 and the second corner cylinder 5, third corner cylinder 6
It is respectively at and first with the 4th corner cylinder 7, the first position-limit mechanism and the second position-limit mechanism, third position-limit mechanism and linear cylinder 17
On the parallel same straight line in direction, the first lever cylinder 2 and third corner cylinder 6, the second lever cylinder 3 and the 4th corner cylinder 7, first
Corner cylinder 4 and third position-limit mechanism, the second corner cylinder 5 and linear cylinder 17 are respectively at the same straight line parallel with second direction
On, the first position-limit mechanism and the second position-limit mechanism are for building position-limiting action, third position-limit mechanism to cylinder in a second direction
For building position-limiting action to cylinder in a first direction, first direction and second direction are perpendicular.
Specifically, as shown in Figures 1 to 4, bottom plate 8 is plate, substantially rectangular in shape, the conduct peace of bottom plate 8 of bottom plate 8
Fill the basis of other components.Bottom plate 8 has first surface, multiple positioning pins, the first position-limit mechanism, the second position-limit mechanism, third
Position-limit mechanism, linear cylinder 17, the first corner cylinder 4, the second corner cylinder 5, third corner cylinder 6 and the 4th corner cylinder 7 are fixedly mounted on
On the first surface of bottom plate 8, first direction is the length direction of bottom plate 8, and second direction is the width direction of bottom plate 8, third party
To the thickness direction for bottom plate 8, first surface is the plane perpendicular with third direction, third direction and first direction and second
Direction is perpendicular.
As shown in Figure 5 and Figure 6, cylinder head is mainly made of cylinder head body 29 and 28 two parts of camshaft case, gas
Head body 29 is fixedly connected and is integrally formed with camshaft case 28, camshaft case 28 for install exhaust cam shaft and
Admission cam shaft, exhaust cam shaft and admission cam shaft are pivotably supported by camshaft case 28, and cylinder head body 29 is used for
It is connect with the cylinder body of engine, cylinder head body 29 is fastened by bolts on the cylinder body of engine, engine valve (air inlet
Door and exhaust valve) and the component of valve actuating mechanism be mounted in cylinder head body 29.The length of camshaft case 28 is greater than gas
The length of head body 29, the width of camshaft case 28 are greater than the width of cylinder head body 29,28 length side of camshaft case
Upward both ends exceed cylinder head body 29, and the both ends in 28 width direction of camshaft case exceed cylinder head body 29, cam
The length direction of shaft housing 28 is parallel with the length direction of cylinder head body 29, the width direction and cylinder of camshaft case 28
The width direction of lid main body 29 is parallel, and cylinder head body 29 and camshaft case 28 are rectangular shape.Cylinder head has bottom
Face, top surface, first end face, second end face, exhaust side and air inlet side, the bottom surface of cylinder head refer in cylinder head with engine
The faying face (bottom surface of cylinder head namely the bottom surface of cylinder head body 29) of cylinder body split, the top surface of cylinder head refers to and bottom surface phase
It is parallel and with the faying face of engine bonnet split (top surface of cylinder head namely the top surface of camshaft case 28), the of cylinder head
One end face and second end face refer to that the end face at the both ends on the length direction of camshaft case 28, the air inlet side of cylinder head are
Refer to the faying face in cylinder head body 29 with motor intake manifold split, the air inlet side of cylinder head refers to cylinder head body 29
The upper faying face with enmgine exhaust split, the first end face and second end face of cylinder head for two parallel planes and with
The length direction of cylinder head body 29 is perpendicular, the top and bottom of cylinder head be two parallel planes and with first end face,
Second end face, air inlet side and exhaust side are perpendicular, and the air inlet side and exhaust side of cylinder head are two parallel planes
And it is perpendicular with the width direction of cylinder head body 29, the vertical range between air inlet side and exhaust side is less than camshaft casing
The width of body 28, air inlet side and exhaust side are simultaneously connected with the bottom surface of cylinder head.
As shown in Figures 1 to 4, in cylinder head clamping and process, the first lever cylinder 2 and the second lever cylinder 3, third
Corner cylinder 6 and the 4th corner cylinder 7 are used to apply the camshaft case 28 of cylinder head the pressure along third direction, the first lever cylinder
2 and second lever cylinder 3 be located at the side of camshaft case 28, third corner cylinder 6 and the 4th corner cylinder 7 are located at camshaft case 28
The other side.First corner cylinder 4 and the second corner cylinder 5 are used to apply the cylinder head body 29 of cylinder head pressure in a second direction
Power, the first position-limit mechanism and the second position-limit mechanism are used to play position-limiting action to cylinder head body 29 in a second direction, thus
Also position-limiting action, the first corner cylinder 4 and the second corner cylinder 5 and the first position-limit mechanism and the second limit can be integrally played to cylinder head
Position mechanism matches, and cylinder head is fixedly clamped in a second direction.Linear cylinder 17 is used for the cylinder head body 29 to cylinder head
Applying the pressure along first direction, third position-limit mechanism is used to play position-limiting action to cylinder head body 29 in a first direction,
To also can integrally play position-limiting action to cylinder head, linear cylinder 17 is matched with third position-limit mechanism, in a first direction
Cylinder head is fixedly clamped.
As shown in Figures 1 to 4, the first corner cylinder 4 has the pressing plate 401 that contact with cylinder head, the second corner cylinder 5 with
The pressing plate 501 of cylinder head contact, the pressing plate 501 of the pressing plate 401 of the first corner cylinder 4 and the second corner cylinder 5 make rotating motion and
The rotation centerline of the pressing plate of linear motion, the first corner cylinder 4 and the second corner cylinder 5 is parallel with second direction, the first corner
Cylinder 4 and the second corner cylinder 5 are used to apply cylinder head pressure in a second direction, by cylinder head be resisted against the first position-limit mechanism and
On second position-limit mechanism.First corner cylinder 4 and the second corner cylinder 5 are corner cylinder, and structure is as public in those skilled in the art institute
As knowing, details are not described herein.The pressing plate 401 of first corner cylinder 4 can make rotating motion and move along a straight line, pressing plate 401 and
The piston rod of one corner cylinder 4 is fixedly connected, and the rotation centerline of pressing plate 401 is parallel with second direction, and pressing plate 401 can be upper and lower
Rotation, direction of motion when pressing plate 401 moves in a straight line is parallel with second direction, and pressing plate 401 is used for and cylinder head body 29
Air inlet side or exhaust side face contact.The pressing plate 501 of second corner cylinder 5 can make rotating motion and move along a straight line, pressing plate 501 with
The piston rod of second corner cylinder 5 is fixedly connected, and 501 rotation centerline of pressing plate is parallel with second direction, and pressing plate 501 can be upper and lower
Rotation, direction of motion when pressing plate 501 moves in a straight line is parallel with second direction, and pressing plate 501 is used for and cylinder head body 29
Air inlet side or exhaust side face contact.When needing compression cylinder lid, the pressing plate 401 of the first corner cylinder 4 is rotated down and edge
Second direction is mobile, and pressing plate 401 is contacted with cylinder head body 29 and the pressure to the application of cylinder head body 29 in a second direction, the
The pressing plate 501 of two corner cylinders 5 is rotated down and moves in a second direction, and pressing plate 501 contacts with cylinder head body 29 and to cylinder
Cylinder head body 29 is resisted against the first limit by the pressure of the application of lid main body 29 in a second direction, final pressing plate 401 and pressing plate 501
In mechanism and the second position-limit mechanism, the first position-limit mechanism and the second position-limit mechanism be used for the air inlet side of cylinder head body 29 or
Exhaust side face contact.
As shown in Figures 1 to 4, linear cylinder 17 is to be oppositely arranged with third position-limit mechanism, and linear cylinder 17 is used for cylinder head
Apply the pressure along first direction, cylinder head is resisted against on third position-limit mechanism.Linear cylinder 17 and third position-limit mechanism are fixed
Be set on the first surface of bottom plate 8, the structure of linear cylinder 17 as well known in the skilled person, herein no longer
It repeats.Linear cylinder 17 and third position-limit mechanism with the both ends end face of cylinder head body 29 for contacting, and the two of cylinder head body 29
End end face is the plane perpendicular with the length direction of cylinder head body 29.When linear cylinder 17 works, stretching motion can be produced
The raw pressure for being applied to cylinder head body 29, cylinder head body 29 can be resisted against on third position-limit mechanism, thus in first party
Upward clamping cylinder lid.
As shown in Figures 1 to 4, the first lever cylinder 2 includes the hydraulic cylinder being fixedly installed on bottom plate 8, the work with hydraulic cylinder
Stopper rod connection and the pressing plate 201 for applying the pressure along third direction to cylinder head and the cylinder with pressing plate 201 and hydraulic cylinder
The connecting rod of body rotation connection, pressing plate 201 are connect with the piston rod rotation of hydraulic cylinder, and one end of connecting rod and pressing plate 201 are rotatablely connected,
The other end of connecting rod and the cylinder body of hydraulic cylinder are rotatablely connected, the rotation centerline of pressing plate 201 and the axis perpendicular of hydraulic cylinder, the
The rotation centerline of the pressing plate 201 of one lever cylinder 2 is simultaneously parallel with first direction.The thick stick that hydraulic cylinder, pressing plate 201 and connecting rod are constituted
Bar cylinder, the first lever cylinder 2 are matched with the first positioning pin 18, gripping cams shaft housing 28.One end of pressing plate 201 and hydraulic cylinder
The head rotation of piston rod connects, and the other end is the compression end that camshaft case 28 contacts, and one end of connecting rod and pressing plate 201 rotate
Connection, and tie point is rotatablely connected close to the head of piston rod, the other end of connecting rod and the cylinder body of hydraulic cylinder, is formed to pressing plate
201 support enables pressing plate 201 to swing up and down under the driving of hydraulic cylinder, and realization clamps and releases cylinder head.
As shown in Figures 1 to 4, the second lever cylinder 3 includes the hydraulic cylinder being fixedly installed on bottom plate 8, the work with hydraulic cylinder
Stopper rod connection and the pressing plate 301 for applying the pressure along third direction to cylinder head and the cylinder with pressing plate 301 and hydraulic cylinder
The connecting rod of body rotation connection, pressing plate 301 are connect with the piston rod rotation of hydraulic cylinder, and one end of connecting rod and pressing plate 301 are rotatablely connected,
The other end of connecting rod and the cylinder body of hydraulic cylinder are rotatablely connected, the rotation centerline of pressing plate 301 and the axis perpendicular of hydraulic cylinder, the
The rotation centerline of the pressing plate 301 of two lever cylinders 3 is simultaneously parallel with first direction.The thick stick that hydraulic cylinder, pressing plate 301 and connecting rod are constituted
Bar cylinder, the second lever cylinder 3 are matched with the second positioning pin 19, gripping cams shaft housing 28.One end of pressing plate 301 and hydraulic cylinder
The head rotation of piston rod connects, and the other end is the compression end that camshaft case 28 contacts, and one end of connecting rod and pressing plate 301 rotate
Connection, and tie point is rotatablely connected close to the head of piston rod, the other end of connecting rod and the cylinder body of hydraulic cylinder, is formed to pressing plate
301 support enables pressing plate 301 to swing up and down under the driving of hydraulic cylinder, and realization clamps and releases cylinder head.
As shown in Figures 1 to 4, third corner cylinder 6 has the pressing plate 601 that contact with cylinder head, the 4th corner cylinder 7 with
The pressing plate 701 of cylinder head contact, the pressing plate 601 of third corner cylinder 6 and the pressing plate 701 of the 4th corner cylinder 7 make rotating motion and
Linear motion, the rotation centerline of the pressing plate 701 of the pressing plate 601 and the 4th corner cylinder 7 of third corner cylinder 6 are equal with third direction
Row, third corner cylinder 6 and the 4th corner cylinder 7 are used to apply cylinder head the pressure along third direction, and cylinder head is pressed on the
On three positioning pins 20 and the 4th positioning pin 21.Third corner cylinder 6 and the 4th corner cylinder 7 are corner cylinder, and structure is such as this field
As well known to technical staff, details are not described herein.The pressing plate 601 of third corner cylinder 6 can make rotating motion and move along a straight line,
Pressing plate 601 is fixedly connected with the piston rod of third corner cylinder 6, and the rotation centerline of pressing plate 601 is parallel with third direction, pressing plate
601 can rotate left and right, and direction of motion when pressing plate 601 moves in a straight line is parallel with third direction, pressing plate 601 be used for it is convex
It takes turns shaft housing 28 to contact, third corner cylinder 6 is matched with third positioning pin 20, gripping cams shaft housing 28, thus in third party
Cylinder head is fixedly clamped upwards.The pressing plate 701 of 4th corner cylinder 7 can make rotating motion and move along a straight line, pressing plate 701 and third
The piston rod of corner cylinder 6 is fixedly connected, and the rotation centerline of pressing plate 701 is parallel with third direction, and pressing plate 701 can be with left-right rotary
Turn, direction of motion when pressing plate 701 moves in a straight line is parallel with third direction, and pressing plate 701 with camshaft case 28 for connecing
Touching, the 4th corner cylinder 7 are matched with the 4th positioning pin 21, gripping cams shaft housing 28, thus by cylinder head on third direction
It is fixedly clamped.
As shown in Figures 1 to 4, multiple positioning pins include the first positioning pin 18, the second positioning pin being set on bottom plate 8
19, third positioning pin 20 and the 4th positioning pin 21, the first positioning pin 18 and the second positioning pin 19, third positioning pin 20 and the 4th are fixed
Position pin 21 is respectively on the same straight line parallel with first direction, and the first positioning pin 18 is matched with the first lever cylinder 2, the
Two positioning pins 19 are matched with the second lever cylinder 3, and third positioning pin 20 is matched with third corner cylinder 6, the 4th positioning pin 21 with
4th corner cylinder 7 matches, i.e. two lever cylinders and two corner cylinders are matched with four positioning pins, gripping cams shaft housing
28, so that cylinder head is fixedly clamped on third direction.The end face of positioning pin is the plane for contacting with cylinder head and determines
The end face of position pin is parallel with the first surface of bottom plate 8, and the axis of positioning pin is parallel with third direction, the end of all positioning pins
Face forms the positioning plane in cylinder head clamping process with mill, and cylinder head is placed in determining for positioning pin formation with its bottom surface or top surface
On bit plane.The pressing plate 201 of first lever cylinder 2, the pressing plate 301 of the second lever cylinder 3, the first corner cylinder 4 pressing plate 401, second
The pressing plate 701 of the pressing plate 501 of corner cylinder 5, the pressing plate 601 of third corner cylinder 6 and the 4th corner cylinder 7 is located at the same side of bottom plate 8.
As shown in Figures 1 to 4, cylinder head bottom surface of the invention, bottom hole, spark-plug hole and camshaft hole fixture for processing
Including the first positioning column 1, the second positioning column 9 and third positioning column 10 being set on bottom plate 8, the first positioning column 1 and second is fixed
Position column 9 is on the same straight line parallel with first direction and the first positioning column 1 and the second positioning column 9 are located at the first position restrainer
Between structure and the second lever cylinder 3, third positioning column 10 is between the first corner cylinder 4 and third position-limit mechanism.First positioning column
1, the second positioning column 9 and third positioning column 10 are respectively equipped with one, and the first positioning column 1 and the second positioning column 9 are used in second party
Position-limiting action is played to cylinder head upwards, third positioning column 10 is used to play position-limiting action to cylinder head in a first direction, the
One positioning column 1 and the second positioning column 9 for the same appearance face contact with camshaft case 28, third positioning column 10 be used for it is convex
Take turns the first end face or second end face contact of shaft housing 28.In the first positioning column 1, the second positioning column 9 and third positioning column to gas
When cylinder cap plays the role of positioning, cylinder head is placed on fixture in the downward mode in top surface, the top surface of cylinder head and the first positioning pin
18, the second positioning pin 19, third positioning pin 20 and the 4th positioning pin 21 are in contact, and the bottom surface of cylinder head is located at the top of top surface,
Camshaft case 28 is located at the lower section of cylinder head body 29, finally by the first lever cylinder 2, the second lever cylinder 3, third corner cylinder 6
It is matched with the 4th corner cylinder 7 with four positioning pins, gripping cams shaft housing 28, and then realizes and be fixedly clamped to cylinder head.
As shown in Figures 1 to 4, the first positioning column 1, the second positioning column 9 and third positioning column 10 are cylindrical body, and first is fixed
The axis of position column 1, the second positioning column 9 and third positioning column 10 is parallel with third direction.In a first direction, the first lever cylinder
2, the first position-limit mechanism, the first positioning column 1, the second positioning column 9, the second lever cylinder 3 and the second position-limit mechanism are to be sequentially arranged.?
In second direction, the first corner cylinder 4, third positioning column 10 and third position-limit mechanism are to be sequentially arranged, the first corner cylinder 4, third
Positioning column 10 and third position-limit mechanism and the one end being located on the length direction of bottom plate 8, the second corner cylinder 5 and linear cylinder 17 are located at
The other end on the length direction of bottom plate 8.
As shown in Figures 1 to 4, the first position-limit mechanism includes the first limit base 11 connecting with bottom plate 8 and is set to first
The first spacer pin 12 on limit base 11 and for contacting with cylinder head, the axis of the first spacer pin 12 are equal with second direction
Row.First limit base 11 is fixedly connected with bottom plate 8, and one end of the first spacer pin 12 is fixedly connected with the first limit base 11, and first
The other end of spacer pin 12 is used for air inlet side or exhaust side face contact with cylinder head, and the first spacer pin 12 is in a second direction
Position-limiting action is played to cylinder head.Vertical range between first positioning pin 18 and the first surface of bottom plate 8 is greater than the first positioning
Vertical range between the top surface and first surface of column 1, vertical range between the top surface and first surface of the first positioning column 1,
Vertical range between the top surface and first surface of second positioning column 9 and between the top surface and first surface of third positioning column 10
Vertical range it is equal in magnitude.
As shown in Figures 1 to 4, the second position-limit mechanism includes the second limit base 13 connecting with bottom plate 8 and is set to second
The second spacer pin 14 on limit base 13 and for contacting with cylinder head, the axis of the second spacer pin 14 are equal with second direction
Row.Second limit base 13 is fixedly connected with bottom plate 8, and one end of the second spacer pin 14 is fixedly connected with the second limit base 13, and second
The other end of spacer pin 14 is used for air inlet side or exhaust side face contact with cylinder head, and the second spacer pin 14 is in a second direction
Position-limiting action is played to cylinder head.Vertical range and the first positioning pin between second positioning pin 19 and the first surface of bottom plate 8
Vertical range between 18 and the first surface of bottom plate 8 is equal in magnitude, the axis of the first positioning pin 18 and the second positioning pin 19
Axis is in the same plane parallel with first surface.
As shown in Figures 1 to 4, third position-limit mechanism includes the third limit base 15 connecting with bottom plate 8 and is set to third
Third spacer pin 16 on limit base 15 and for contacting with cylinder head, the axis of third spacer pin 16 are equal with first direction
Row.Third limit base 15 is fixedly connected with bottom plate 8, and one end of third spacer pin 16 is fixedly connected with third limit base 15, third
The other end of spacer pin 16 with the end face of cylinder head body 29 for contacting, and third spacer pin 16 is in a first direction to cylinder head
Play position-limiting action.Vertical range and the first positioning pin 18 and bottom plate 8 between third positioning pin 20 and the first surface of bottom plate 8
First surface between vertical range it is equal in magnitude, the axis of the axis of the first positioning pin 18 and third positioning pin 20 be in
In the parallel same plane of first surface.
When cylinder head is processed, tooling step is successively are as follows: carries out clamping to cylinder head using the fixture of above structure
The first clamping work step, half finish-milling bottom surface work step, spark-plug hole roughing work step, the bottom hole work step that drills and reams, to cylinder head carry out
The the second clamping work step and camshaft hole roughing work step of clamping.
Cylinder head is carried out to use fixture of the invention, the first clamping work step packet in the first clamping work step of first time clamping
Include following step:
S11, fixture is mounted on numerically-controlled machine tool；
S12, cylinder head to be processed is placed on four positioning pins of fixture, makes the top surface of cylinder head and four positioning
Pin contacts contact the outer surface of camshaft case 28 with the first positioning column 1 and the second positioning column 9, and make camshaft case 28
First end face contacted with third positioning column 10；Four positioning pins include the first positioning pin 18, the second positioning pin 19, third positioning
Pin 20 and the 4th positioning pin 21, cylinder head is placed in the positioning plane of four positioning pins formation with its top surface, and is determined by first
Position column 1 and the second positioning column 9 play position-limiting action to cylinder head in a second direction, in a first direction by third positioning column 10
Position-limiting action is played to cylinder head；
S13, it is matched using the first lever cylinder 2 of fixture, the second lever cylinder 3, third corner cylinder 6 and the 4th corner cylinder 7,
The common clamping for completing cylinder head is fixed, and the first lever cylinder 2, the second lever cylinder 3, third corner cylinder 6 and the 4th corner cylinder 7 carry out
Cylinder head is pressed in the positioning plane of four positioning pins formation by corresponding actions.After cylinder head completes clamping, cylinder head body
29 are located at the top of camshaft case 28, and the bottom surface processed in cylinder head to half finish-milling is in a horizontal state, in order to carry out half essence
Milling Machining.
After the completion of the first clamping work step, half finish-milling processing, the tool of half finish-milling bottom surface work step are carried out to the bottom surface of cylinder head
Body process are as follows: start numerically-controlled machine tool, half finish-milling processing is carried out to the bottom surface of cylinder head.
It is the cylinder head of half finish-milling after processing is completed using the top surface of cylinder head as datum level in half finish-milling bottom surface work step
Bottom surface and cylinder head top surface between vertical range be 133.75mm, the bottom surface of cylinder head and the top surface of cylinder head are parallel,
The parallelism tolerance value of the bottom surface of cylinder head is 0.08mm.
It is half essence in order to stop processing capacity when subsequent fine milling bottom surface to the purpose that the bottom surface of cylinder head carries out half finish-milling processing
Milling Machining controls finish-milling surplus, and finish-milling completes the process final size control and surface smoothness, is conducive to improve adding for cylinder head
Working medium amount.
After the completion of half finish-milling bottom surface work step, roughing, spark-plug hole roughing work are carried out to the spark-plug hole of cylinder head
The detailed process of step are as follows: start numerically-controlled machine tool, roughing is carried out to the spark-plug hole 31 of cylinder head, makes the diameter of spark-plug hole 31
Reach the setting value in technique requirement.
As shown in Figures 5 to 7, the spark-plug hole 31 in cylinder head has multiple, and spark-plug hole 31 is used to install spark plug,
Numerically-controlled machine tool successively processes multiple spark-plug holes 31 in cylinder head along the length direction of cylinder head.
After the completion of spark-plug hole roughing work step, the bottom surface hole machined that drills and reams is carried out to cylinder head, drill and ream bottom hole work step
Detailed process are as follows: start numerically-controlled machine tool, multiple bottom holes processed on the bottom surface of cylinder head, make quantity and the position of bottom hole
It sets and meets technique requirement.
As shown in Figures 5 to 7, the quantity of the bottom hole 30 processed on the bottom surface of cylinder head is three, three bottom surfaces
The distribution triangular in shape of hole 30, bottom hole 30 is circular hole and the diameter of bottom hole 30 and the bottom surface of cylinder head are perpendicular.
Since after carrying out first time clamping to cylinder head, camshaft case 28 is located at the lower section of cylinder head body 29, need
It carries out rough machined camshaft hole 32 to be located on camshaft case 28, camshaft hole 32 is used to install exhaust cam shaft and air inlet is convex
Wheel shaft, therefore in order to facilitate processing, clamping need to be carried out again to cylinder head and fixed, so that camshaft case 28 is located at cylinder head master
The top of body 29.
After the completion of drilling and reaming bottom hole work step, second of clamping is carried out to cylinder head and is fixed, is still made in the second clamping work step
With fixture of the invention, the second clamping work step is comprised the following steps that
S51, cylinder head to be processed is placed on four positioning pins of fixture, makes the bottom surface of cylinder head and four positioning
Pin contacts contact the air inlet side in cylinder head body 29 with the first position-limit mechanism and the second position-limit mechanism, and make cylinder head
The end face for facing third position-limit mechanism in main body 29 is contacted with third position-limit mechanism；Four positioning pins include the first positioning pin
18, the second positioning pin 19, third positioning pin 20 and the 4th positioning pin 21, cylinder head are placed in four positioning pins with its bottom surface and are formed
Positioning plane on, and position-limiting action is played to cylinder head in a second direction by the first position-limit mechanism and the second position-limit mechanism,
Position-limiting action is played to cylinder head in a first direction by third position-limit mechanism；
S52, it is matched using the first corner cylinder 4, the second corner cylinder 5 and linear cylinder 17 of fixture, completes cylinder head jointly
Clamping fix, the first corner cylinder 4, the second corner cylinder 5 and linear cylinder 17 carry out corresponding actions, and cylinder head is resisted against the first limit
On position mechanism, the second position-limit mechanism and third position-limit mechanism, the pressing plate of the pressing plate 401 of the first corner cylinder 4 and the second corner cylinder 5
501 with the exhaust side face contact of cylinder head body 29, the end face for facing linear cylinder 17 on linear cylinder 17 and cylinder head body 29
Contact.After cylinder head completes clamping, camshaft case 28 is located at the top of cylinder head body 29, and the top surface of cylinder head is in top
And it is in a horizontal state.
After the completion of the second clamping work step, roughing, camshaft hole roughing work are carried out to the camshaft hole 32 of cylinder head
The detailed process of step are as follows: start numerically-controlled machine tool, rough milling is carried out to the camshaft hole 32 of cylinder head, makes the straight of camshaft hole 32
Diameter reaches the setting value in technique requirement.
As shown in Figures 5 to 7, the camshaft hole 32 in cylinder head has two column and each column arrange multiple camshaft holes 32.
It is the cam using the bottom surface of cylinder head as datum level, after the completion of rough milling in camshaft hole roughing work step
Vertical range between the axis of axis hole and the bottom surface of cylinder head is less than vertical between the bottom surface and the top surface of cylinder head of cylinder head
Distance, the vertical range between the axis of camshaft hole and the bottom surface of cylinder head are 132.25mm.
Using fixture of the invention for cylinder head half finish-milling bottom surface work step, spark-plug hole roughing work step, drill and ream bottom
It fixes, can be realized to the accurate of cylinder head for carrying out clamping to cylinder head in face work step and camshaft hole roughing work step
Clamping and positioning also improve the reliability of clamping efficiency and compression, improve the machining accuracy of engine cylinder cap, and make
With same fixture in multiple tooling steps of engine cylinder cap, fixture it is versatile, without in each processing work
Clamping again is carried out to cylinder head in step to fix, and is improved the machining accuracy and processing efficiency of engine cylinder cap, is conducive to gas
The reasonable Arrangement of each tooling step of cylinder cap, reduces the input cost of fixture, reduces production cost.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. cylinder head bottom surface, bottom hole, spark-plug hole and camshaft hole fixture for processing, it is characterised in that: including bottom plate and
The first lever cylinder, the second lever cylinder, the first corner cylinder, the second corner cylinder, third corner cylinder, the 4th corner being set on bottom plate
Cylinder, the first position-limit mechanism, the second position-limit mechanism, third position-limit mechanism, linear cylinder and multiple positioning pins, the first lever cylinder and second
Lever cylinder, the first corner cylinder and the second corner cylinder, third corner cylinder and the 4th corner cylinder, the first position-limit mechanism and the second position restrainer
Structure, third position-limit mechanism and linear cylinder are respectively on the same straight line parallel with first direction, the first lever cylinder and third
Corner cylinder, the second lever cylinder and the 4th corner cylinder, the first corner cylinder and third position-limit mechanism, the second corner cylinder and linear cylinder difference
On the same straight line parallel with second direction, the first position-limit mechanism and the second position-limit mechanism are for right in a second direction
Cylinder builds position-limiting action, and third position-limit mechanism is for building position-limiting action to cylinder in a first direction, first direction and the
Two directions are perpendicular.
2. cylinder head bottom surface according to claim 1, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: the first direction is the length direction of the bottom plate, and the second direction is the width direction of bottom plate.
3. cylinder head bottom surface according to claim 1, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: first corner cylinder has the pressing plate that contact with cylinder head, and second corner cylinder with cylinder head with contacting
The pressing plate of pressing plate, the first corner cylinder and the second corner cylinder makes rotating motion and moves along a straight line, the first corner cylinder and the second corner
The rotation centerline of the pressing plate of cylinder is parallel with second direction, and the first corner cylinder and the second corner cylinder are used to apply edge to cylinder head
Cylinder head is resisted against on first position-limit mechanism and the second position-limit mechanism by the pressure of second direction.
4. cylinder head bottom surface according to claim 3, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: the linear cylinder is to be oppositely arranged with the third position-limit mechanism, and linear cylinder is used to apply along first party cylinder head
To pressure, cylinder head is resisted against on third position-limit mechanism.
5. cylinder head bottom surface according to claim 4, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: the multiple positioning pin include the first positioning pin being set on the bottom plate, the second positioning pin, third positioning pin and
4th positioning pin, the first positioning pin and the second positioning pin, third positioning pin and the 4th positioning pin are respectively at and first direction phase
On parallel same straight line, the first positioning pin is matched with first lever cylinder, the second positioning pin and second lever cylinder
It matches, third positioning pin is matched with the third corner cylinder, and the 4th positioning pin is matched with the 4th corner cylinder.
6. cylinder head bottom surface according to claim 5, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: the third corner cylinder has the pressing plate that contact with cylinder head, and the 4th corner cylinder with cylinder head with contacting
The pressing plate of pressing plate, third corner cylinder and the 4th corner cylinder makes rotating motion and moves along a straight line, third corner cylinder and the 4th corner
The rotation centerline of the pressing plate of cylinder is parallel with third direction, and third corner cylinder and the 4th corner cylinder are used to apply edge to cylinder head
Cylinder head is pressed on the third positioning pin and the 4th positioning pin by the pressure of third direction, third direction and described first
Direction and second direction are perpendicular.
7. cylinder head bottom surface according to any one of claims 1 to 6, bottom hole, spark-plug hole and camshaft hole processing folder
Tool, it is characterised in that: it further include the first positioning column, the second positioning column and third positioning column being set on the bottom plate, first
Positioning column and the second positioning column are on the same straight line parallel with the first direction and the first positioning column and second positions
For column between first position-limit mechanism and second lever cylinder, third positioning column is located at first corner cylinder and described
Between third position-limit mechanism.
8. cylinder head bottom surface according to any one of claims 1 to 6, bottom hole, spark-plug hole and camshaft hole processing folder
Tool, it is characterised in that: first position-limit mechanism includes the first limit base connecting with the bottom plate and is set to the first limit
The first spacer pin on seat and for contacting with cylinder head, the axis of the first spacer pin are parallel with the second direction.
9. cylinder head bottom surface according to claim 8, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: second position-limit mechanism includes the second limit base connecting with the bottom plate and is set on the second limit base and uses
In the second spacer pin contacted with cylinder head, the axis of the second spacer pin is parallel with the second direction.
10. cylinder head bottom surface according to claim 9, bottom hole, spark-plug hole and camshaft hole fixture for processing, special
Sign is: the third position-limit mechanism includes the third limit base connecting with the bottom plate and is set on third limit base and uses
In the third spacer pin contacted with cylinder head, the axis of third spacer pin is parallel with the first direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710810382.8A CN107336052B (en) | 2017-09-11 | 2017-09-11 | Cylinder head bottom surface, bottom hole, spark-plug hole and camshaft hole fixture for processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710810382.8A CN107336052B (en) | 2017-09-11 | 2017-09-11 | Cylinder head bottom surface, bottom hole, spark-plug hole and camshaft hole fixture for processing |
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| CN107336052A CN107336052A (en) | 2017-11-10 |
| CN107336052B true CN107336052B (en) | 2019-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109128770A (en) * | 2018-08-24 | 2019-01-04 | 芜湖源码自动化设备有限公司 | Automatic pipe laying device |
| CN110293423A (en) * | 2019-07-09 | 2019-10-01 | 中国航发哈尔滨东安发动机有限公司 | A kind of ignition coil casting lid capillary groove processing tool and processing method |
| CN110640515A (en) * | 2019-11-19 | 2020-01-03 | 长春工业大学 | Pneumatic boring fixture for cylinder cover cap |
| CN112025365B (en) * | 2020-08-14 | 2022-04-05 | 昆明云内动力股份有限公司 | Machining clamp for cylinder cover blank adopting robot feeding and discharging mode |
| CN112223151B (en) * | 2020-09-29 | 2022-05-06 | 安庆中船动力配套有限公司 | Compatible anchor clamps of horizontal processing of cylinder cap |
| CN112454194B (en) * | 2020-10-30 | 2024-04-09 | 广西玉柴机器股份有限公司 | Machining bottom surface clamp compatible with different cylinder covers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1034467A (en) * | 1996-07-19 | 1998-02-10 | Shiga Yamashita:Kk | Workpiece working jig |
| CN102729066B (en) * | 2012-06-15 | 2014-09-10 | 芜湖永裕汽车工业有限公司 | Clamp for processing positioning hole on engine cylinder cover |
| CN203542146U (en) * | 2013-11-15 | 2014-04-16 | 芜湖永裕汽车工业有限公司 | Novel fixture for drilling and milling engine cylinder cover top surface |
| CN203887583U (en) * | 2014-06-13 | 2014-10-22 | 芜湖永裕汽车工业有限公司 | Fixture used for drilling and milling of engine cylinder head bottom face |
| CN205129468U (en) * | 2015-11-18 | 2016-04-06 | 安徽工程大学 | Automobile engine cylinder cap bores end face milling anchor clamps |
| CN205254597U (en) * | 2015-12-15 | 2016-05-25 | 重庆飞康机械有限公司 | Engine cylinder lid location pinhole and fabrication hole add clamping apparatus |
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