CN110237540A - A kind of excavator model forearm and its processing method - Google Patents
A kind of excavator model forearm and its processing method Download PDFInfo
- Publication number
- CN110237540A CN110237540A CN201910526362.7A CN201910526362A CN110237540A CN 110237540 A CN110237540 A CN 110237540A CN 201910526362 A CN201910526362 A CN 201910526362A CN 110237540 A CN110237540 A CN 110237540A
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- Prior art keywords
- forearm
- blank
- milling
- arm member
- mounting hole
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
Abstract
The present invention relates to a kind of excavator model forearm and its processing methods, including scraper bowl mounting hole, hydraulic installalion hole and the large arm mounting hole obtained in rectangular aluminium alloy plate drilling；The the first forearm blank and the second forearm blank that rectangular aluminium alloy plate is symmetrically cut on cutting off machine；Scraper bowl connection sheet, hydraulic connecting piece and the large arm connection sheet that Milling Process obtains are carried out to the first forearm blank and the second forearm blank surface respectively；The first connecting groove that milling obtains on the first forearm blank；The first connection bump that milling obtains on the second forearm blank；The weight loss groove that milling obtains on the second forearm blank and the first forearm blank；The connecting hole that drilling obtains on the second forearm blank and the first forearm blank.
Description
Technical field
The present invention relates to excavator model forearm processing technique fields, more particularly to a kind of for the small of excavator model
Arm and its processing method.
Background technique
It is remotely controlled excavator model, scraper bowl and excavator frame are connected by swinging arm device, swinging arm device is by being mounted on pendulum
Hydraulic cylinder or motor on arm assembly provide power.Swinging arm device generally comprises large arm and forearm, and large arm is as connecting excavator
The rigid body part of vehicle frame and forearm, large arm one end and forearm are hinged, and forearm is the component for connecting large arm and scraper bowl.At present
In excavator mold product development process, forearm mostly uses greatly integral type.It is not high that forearm always exists the accuracy of manufacture, and finished product uses
The problems such as key position is easy to crack in the process, target is not achieved in product service life, leads to the lifting large arm manufactured
It is extremely difficult to application requirement.
But real excavator is mainly copied in the design of the structure of existing forearm.Forearm one end is equipped with a pair of of scraper bowl connection
Piece, is provided with the scraper bowl mounting hole for hinged scraper bowl in scraper bowl connection sheet, and scraper bowl mounting hole is by pin by forearm and scraper bowl phase
Even, the forearm other end is equipped with a pair of of hydraulic connecting piece, and hydraulic connecting on piece is provided with the hydraulic installalion hole for hinged hydraulic stem,
Forearm is connected by hydraulic installalion hole by pin with the piston rod of hydraulic cylinder, and the side of forearm is equipped with a pair of of large arm connection sheet, large arm
The large arm mounting hole for hinged large arm is provided in connection sheet, forearm is connected by large arm mounting hole by pin with large arm.Due to
It will lead to forearm using iron product totally to lay particular stress on, use plastics mostly, intensity is relatively low.Current forearm, is mostly molded
Solid parts made of the following process such as molding, processing technology is complicated, and the manufacturing cycle is long.
Summary of the invention
The purpose of the present invention is to provide a kind of excavator model forearm and its processing methods, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the present invention adopts the following technical scheme: a kind of excavator model forearm and its processing method,
Including scraper bowl mounting hole, hydraulic installalion hole and the large arm mounting hole obtained in rectangular aluminium alloy plate drilling；To rectangular aluminium alloy
The the first forearm blank and the second forearm blank that plate is symmetrically cut on cutting off machine；Respectively to the first forearm blank and
Second forearm blank surface carries out scraper bowl connection sheet, hydraulic connecting piece and the large arm connection sheet that Milling Process obtains；Described
The first connecting groove that milling obtains on the interface of one forearm blank and the second forearm blank；The second forearm blank with
The first connection bump that milling obtains on the interface of first forearm blank；In the second forearm blank and the first forearm blank
The weight loss groove that upper milling obtains；The connecting hole that drilling obtains on the second forearm blank and the first forearm blank；Described
One connecting groove and the first connection bump adaptation, the connecting hole are used to connect the first small arm member and the second small arm member, the
One small arm member and the second small arm member pass through screw connection.Forearm closed by the first small arm member and the second forearm member cover and
At the first small arm member and the second small equal milling of arm member have scraper bowl connection sheet, hydraulic connecting piece and large arm connection sheet, and first is small
Arm member and the second small arm member offer the scraper bowl mounting hole for installing scraper bowl close to the end of scraper bowl connection sheet, and scraper bowl connects
The scraper bowl mounting hole for hinged scraper bowl is provided in contact pin, forearm is connected by scraper bowl mounting hole by pin with scraper bowl, hydraulic connecting
On piece is provided with the hydraulic installalion hole for hinged hydraulic stem, and hydraulic installalion hole passes through pin for the piston rod phase of forearm and hydraulic cylinder
Even, the large arm mounting hole for hinged large arm is provided in large arm connection sheet, forearm is connected by large arm mounting hole by pin with large arm.
It is adapted to by the first connecting groove with the first connection bump, enables the first small arm member and the second small arm member accurate contraposition
It is installed together, dislocation when the first small arm member and the second small arm member being avoided to install.Weight loss groove includes array distribution first
Multiple grooves on small arm member and the second small arm member.
A kind of excavator model forearm processing method, specifically includes the following steps:
S1, cleaning rectangular aluminium alloy plate surface silt particle, grease and oxide skin draw scraper bowl peace in rectangular aluminium alloy plate surface
Center line, the center line in hydraulic installalion hole and the center line of large arm mounting hole for filling hole, drill according to drawn line, use
It inhales anvil and drills out scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole；
S2, it will symmetrically be cut on rectangular aluminium alloy plate cutting on line lathe as the first forearm blank and the second forearm blank；
S3, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, with positioning pin and vacuum chuck alignment by union
Afterwards, milling the first forearm blank and the second forearm blank on milling machine mill out the first small arm member and the second small arm member
Appearance profile；
S4, according to drawing requirement, grinding process is carried out to the first forearm blank and the second forearm blank surface respectively, removes cutting edge of a knife or a sword
Side；
S5, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, by the first forearm blank and after polishing
Two forearm blanks carry out Milling Process, milling scraper bowl connection sheet, until the ruler of milling scraper bowl connection sheet respectively on horizontal milling machine
It is very little to a thickness of 4mm, milling hydraulic connecting piece, until the size of milling hydraulic connecting piece is to a thickness of 4mm, the connection of milling large arm
Piece, until the size of milling large arm connection sheet is to a thickness of 4mm；
S6, on milling machine the first forearm of milling blank the first connecting groove and weight loss groove, milling the first forearm blank reach drawing
Size requirement, the interface for the first forearm blank of polishing；
S7, on milling machine the second forearm of milling blank the first connection bump and interface, milling weight loss groove, the second forearm of milling
Blank is required up to drawing size；
S8, on the basis of scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, using numerical control drilling machine bore the first small arm member with
Second small each connecting hole of arm member；
S9, the first connecting groove on the first small arm member is engaged with the first connection bump on the second small arm member, second is round
Groove engages with the second circular protrusions realizes that the sealing of the first small arm member and the second small arm member is fixed；
S10, qualified products are cleaned using supersonic wave cleaning machine, the product after cleaning carries out appearance under incandescent lamp irradiation
Detection.
The manufacturing process technology means of aluminium alloy compression casting machinery arm of the present invention are easy, pre-process to blank material, bore
Blank material after the machining of hole obtains the first forearm blank and the second forearm blank, to the first forearm blank and the second forearm
Process is handled after blank carries out, and obtains the first small arm member with weight loss groove and the second small arm member.In addition, can be in weight loss groove
Packing material can be added in inside.
Further, in step s7, further milling is carried out to the first connection bump curved surface after Milling Process, while right
First connection bump carries out chamfered.
Further, described to go cutting edge of a knife or a sword when whether there is cutting edge of a knife or a sword for artificial observation workpiece surface, pass through serration if having cutting edge of a knife or a sword side
File removes cutting edge of a knife or a sword side.
Further, the first connecting groove and the first connection bump are adapted identical, socket first in the first connecting groove
Connection bump, gap between the two are 0.8 ~ 1.5 millimeter, and in the step s8, the diameter of connecting hole is 3mm.
Further, positioning step includes that vacuum chuck is mounted on numerically-controlled machine tool in step s3；It will be to be processed
Rectangular aluminium alloy plate is placed on vacuum chuck, is inserted into respectively in scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole
Positioning pin is linked together positioning pin and vacuum chuck by screw；Positioning pin and scraper bowl mounting hole, hydraulic installalion hole and big
Arm mounting hole matches.
Further, further comprising the steps of in the step s1: to carry out pincers processing in rectangular aluminium alloy plate surface, draw
The center line of scraper bowl mounting hole out drills out scraper bowl mounting hole using anvil is inhaled.
Further, in step s8, the connecting hole obtained by drilling is subjected to tapping process, tapping obtains having interior
The connecting hole of screw thread.
The excavator model forearm that above-mentioned processing method is processed include the first small arm member, the second small arm member and
Bolt is connected, is offered respectively on the first small arm member and the second small arm member with connecting hole, the first small arm member and second
Offer weight loss groove on the opposite side of small arm member respectively, the surface that the first small arm member contacts the second small arm member is equipped with the
One connecting groove, the surface that the second small arm member contacts the first small arm member are equipped with the first connection bump, the first connection bump and
First connecting groove is to adaptation, and the first connection bump is rounded, diamond shape or rectangular.First small arm member and the second small arm member,
Then recombinant is together, easy to assembly quick.
The interface of the first small arm member and the second small arm member is equipped with highland barley paper, and highland barley paper two sides has been coated with liquid
Body sealant.
The operation principle of the present invention is that: the forearm for excavator model obtained using above-mentioned processing method, including
First small arm member and the second small arm member, drilling obtains scraper bowl mounting hole, hydraulic installalion hole and large arm on the first small arm member
Mounting hole is distributed several weight loss grooves on the first small arm member and the second small arm member, distinguishes milling forearm institute to blank material
The the first small arm member and the second small arm member of shape and structure are needed, after then carrying out to the first small arm member and the second small arm member
Process processing, assembly, obtain the forearm with weight loss groove.
The invention has the benefit that using the first small arm member and the second small arm member is processed respectively, then again
It combines, weight loss groove loss of weight is respectively set on the first small arm member and the second small arm member, while ensure that high intensity
Have the characteristics that light-weighted, the difference small arm member of Milling Process first and the second small arm member, produces easy to assembly quick.
Detailed description of the invention
The invention will be further described for attached drawing, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.
Fig. 1 is the structural schematic diagram for the first small arm member that one embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the second small arm member that one embodiment of the invention provides.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " typically refers to
It is as shown in Figure 1 up and down." inside and outside " refer in specific profile it is interior with it is outer." remote, close " refers to relative to some component
Far and closely.
Embodiment 1
As shown in figs. 1-2, a kind of excavator model forearm and its processing method that one embodiment of the invention provides, are included in square
Scraper bowl mounting hole, hydraulic installalion hole and the large arm mounting hole that shape aluminum alloy plate materials drilling obtains；Rectangular aluminium alloy plate is being cut
The the first forearm blank and the second forearm blank symmetrically cut on cutting mill bed；Respectively to the first forearm blank and the second forearm
Blank surface carries out scraper bowl connection sheet, hydraulic connecting piece and the large arm connection sheet that Milling Process obtains；In the first forearm hair
The first connecting groove that milling obtains on the interface of embryo and the second forearm blank；In the second forearm blank and the first forearm
The first connection bump that milling obtains on the interface of blank；It is obtained in the second forearm blank and milling on the first forearm blank
The weight loss groove arrived；The connecting hole that drilling obtains on the second forearm blank and the first forearm blank；First connection is recessed
Slot and the first connection bump adaptation, the connecting hole is for connecting the first small arm member and the second small arm member, the first forearm structure
Part and the second small arm member pass through screw connection.Forearm is closed by the first small arm member and the second forearm member cover, and first is small
Arm member and the second small equal milling of arm member have scraper bowl connection sheet, hydraulic connecting piece and large arm connection sheet, open in scraper bowl connection sheet
There is the scraper bowl mounting hole for hinged scraper bowl, forearm is connected by scraper bowl mounting hole by pin with scraper bowl, and hydraulic connecting on piece is provided with
For the hydraulic installalion hole of hinged hydraulic stem, forearm is connected by hydraulic installalion hole by pin with the piston rod of hydraulic cylinder, and large arm connects
The large arm mounting hole for hinged large arm is provided in contact pin, forearm is connected by large arm mounting hole by pin with large arm.Pass through first
Connecting groove is adapted to the first connection bump, and the first small arm member and the second small arm member accurate contraposition is enabled to be mounted on one
It rises, dislocation when the first small arm member and the second small arm member being avoided to install.Weight loss groove includes array distribution in the first small arm member
With multiple grooves on the second small arm member.
Embodiment 2
A kind of excavator model forearm processing method, specifically includes the following steps:
S1, cleaning rectangular aluminium alloy plate surface silt particle, grease and oxide skin draw scraper bowl peace in rectangular aluminium alloy plate surface
Center line, the center line in hydraulic installalion hole and the center line of large arm mounting hole for filling hole, drill according to drawn line, use
It inhales anvil and drills out scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, carry out pincers processing in rectangular aluminium alloy plate surface, draw
The center line of scraper bowl mounting hole out drills out scraper bowl mounting hole using anvil is inhaled；
S2, it will symmetrically be cut on rectangular aluminium alloy plate cutting on line lathe as the first forearm blank and the second forearm blank；
S3, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, with positioning pin and vacuum chuck alignment by union
Afterwards, milling the first forearm blank and the second forearm blank on milling machine mill out the first small arm member and the second small arm member
Appearance profile, positioning step include that vacuum chuck is mounted on numerically-controlled machine tool；Rectangular aluminium alloy plate to be processed is placed
In on vacuum chuck, it is inserted into positioning pin respectively in scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, will be determined by screw
Position pin and vacuum chuck link together；Positioning pin and scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole match.
S4, according to drawing requirement, grinding process is carried out to the first forearm blank and the second forearm blank surface respectively, manually
Whether observation workpiece surface has cutting edge of a knife or a sword side, removes while having cutting edge of a knife or a sword to pass through serration file if for cutting edge of a knife or a sword；
S5, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, by the first forearm blank and after polishing
Two forearm blanks carry out Milling Process, milling scraper bowl connection sheet, until the ruler of milling scraper bowl connection sheet respectively on horizontal milling machine
It is very little to a thickness of 4mm, milling hydraulic connecting piece, until the size of milling hydraulic connecting piece is to a thickness of 4mm, the connection of milling large arm
Piece, until the size of milling large arm connection sheet is to a thickness of 4mm；
S6, on milling machine the first forearm of milling blank the first connecting groove and weight loss groove, milling the first forearm blank reach drawing
Size requirement, the interface for the first forearm blank of polishing；
S7, on milling machine the second forearm of milling blank the first connection bump and interface, milling weight loss groove, the second forearm of milling
Blank is required up to drawing size, carries out further milling to the first connection bump curved surface after Milling Process, while connecting to first
Protrusion carries out chamfered.；
S8, on the basis of scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, using numerical control drilling machine bore the first small arm member with
Second small each connecting hole of arm member；
S9, the first connecting groove on the first small arm member is engaged with the first connection bump on the second small arm member, second is round
Groove engages with the second circular protrusions realizes that the sealing of the first small arm member and the second small arm member is fixed；
S10, qualified products are cleaned using supersonic wave cleaning machine, the product after cleaning carries out appearance under incandescent lamp irradiation
Detection.
Particularly, the first connecting groove and the first connection bump are adapted identical, and socket first connects in the first connecting groove
Protrusion is connect, gap between the two is 0.8 millimeter, and the diameter of connecting hole is 3mm.
Embodiment 3
In one embodiment, a kind of excavator model forearm processing method specifically includes the following steps:
S1, cleaning rectangular aluminium alloy plate surface silt particle, grease and oxide skin draw scraper bowl peace in rectangular aluminium alloy plate surface
Center line, the center line in hydraulic installalion hole and the center line of large arm mounting hole for filling hole, drill according to drawn line, use
It inhales anvil and drills out scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole；
S2, it will symmetrically be cut on rectangular aluminium alloy plate cutting on line lathe as the first forearm blank and the second forearm blank；
S3, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, with positioning pin and vacuum chuck alignment by union
Afterwards, milling the first forearm blank and the second forearm blank on milling machine mill out the first small arm member and the second small arm member
Appearance profile；
S4, according to drawing requirement, grinding process is carried out to the first forearm blank and the second forearm blank surface respectively, removes cutting edge of a knife or a sword
Side；
S5, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, by the first forearm blank and after polishing
Two forearm blanks carry out Milling Process, milling scraper bowl connection sheet, until the ruler of milling scraper bowl connection sheet respectively on horizontal milling machine
It is very little to a thickness of 4mm, milling hydraulic connecting piece, until the size of milling hydraulic connecting piece is to a thickness of 4mm, the connection of milling large arm
Piece, until the size of milling large arm connection sheet is to a thickness of 4mm；
S6, on milling machine the first forearm of milling blank the first connecting groove and weight loss groove, milling the first forearm blank reach drawing
Size requirement, the interface for the first forearm blank of polishing；
S7, on milling machine the second forearm of milling blank the first connection bump and interface, milling weight loss groove, the second forearm of milling
Blank is up to the requirement of drawing size, and Milling Process is until the first connecting groove and the first connection bump are adapted identical, the first connection
When in protrusion the first connecting groove of insertion, gap between the two is 1.5 millimeters, and in the step s8, the diameter of connecting hole is
3mm.；
S8, on the basis of scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, using numerical control drilling machine bore the first small arm member with
The connecting hole obtained by drilling is carried out tapping process, tapping is had in step s8 by second small each connecting hole of arm member
Internal thread connecting hole.
S9, the filled plastics foam in weight loss groove, by the first connecting groove on the first small arm member and the second small arm member
Upper first connection bump engaging, the second circular groove engages with the second circular protrusions realizes the first small arm member and the second forearm structure
The sealing of part is fixed；
S10, qualified products are cleaned using supersonic wave cleaning machine, the product after cleaning carries out appearance under incandescent lamp irradiation
Detection.
Embodiment 4
The excavator model forearm include the first small arm member, the second small arm member and connection bolt, the first small arm member and
It is offered respectively on second small arm member with connecting hole, on the first small arm member and the opposite side of the second small arm member respectively
Weight loss groove is offered, the surface that the first small arm member contacts the second small arm member is equipped with the first connecting groove, the second small arm member
The surface for contacting the first small arm member is equipped with the first connection bump, the first connection bump and the first connecting groove to adaptation, and first
Connection bump is rounded, diamond shape or rectangular.First small arm member and the second small arm member, then recombinant together, assembly side
Just quickly.
The interface of the first small arm member and the second small arm member is equipped with highland barley paper, and highland barley paper two sides has been coated with liquid
Body sealant.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of processing method of excavator model forearm, it is characterised in that: including what is obtained in rectangular aluminium alloy plate drilling
Scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole；To rectangular aluminium alloy plate, symmetrically cutting is obtained on cutting off machine
First forearm blank and the second forearm blank；Milling Process is carried out to the first forearm blank and the second forearm blank surface respectively to obtain
Scraper bowl connection sheet, hydraulic connecting piece and the large arm connection sheet arrived；In the handover of the first forearm blank and the second forearm blank
The first connecting groove that milling obtains on face；Milling obtains on interface of the second forearm blank with the first forearm blank
The first connection bump；The weight loss groove that milling obtains on the second forearm blank and the first forearm blank；Described second
The connecting hole that drilling obtains on forearm blank and the first forearm blank.
2. the processing method of excavator model forearm according to claim 1, it is characterised in that: excavator model forearm adds
Specific step is as follows for work method:
S1, cleaning rectangular aluminium alloy plate surface silt particle, grease and oxide skin draw scraper bowl peace in rectangular aluminium alloy plate surface
Center line, the center line in hydraulic installalion hole and the center line of large arm mounting hole for filling hole, drill according to drawn line, use
It inhales anvil and drills out scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole；
S2, it will symmetrically be cut on rectangular aluminium alloy plate cutting on line lathe as the first forearm blank and the second forearm blank；
S3, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, with positioning pin and vacuum chuck alignment by union
Afterwards, milling the first forearm blank and the second forearm blank on milling machine mill out the first small arm member and the second small arm member
Appearance profile；
S4, according to drawing requirement, grinding process is carried out to the first forearm blank and the second forearm blank surface respectively, removes cutting edge of a knife or a sword
Side；
S5, it is positioned with scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, by the first forearm blank and after polishing
Two forearm blanks carry out Milling Process, milling scraper bowl connection sheet, until the ruler of milling scraper bowl connection sheet respectively on horizontal milling machine
It is very little to a thickness of 4mm, milling hydraulic connecting piece, until the size of milling hydraulic connecting piece is to a thickness of 4mm, the connection of milling large arm
Piece, until the size of milling large arm connection sheet is to a thickness of 4mm；
S6, on milling machine the first forearm of milling blank the first connecting groove and weight loss groove, milling the first forearm blank reach drawing
Size requirement, the interface for the first forearm blank of polishing；
S7, on milling machine the second forearm of milling blank the first connection bump and interface, milling weight loss groove, the second forearm of milling
Blank is required up to drawing size；
S8, on the basis of scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole, using numerical control drilling machine bore the first small arm member with
Second small each connecting hole of arm member；
S9, the first connecting groove on the first small arm member is engaged with the first connection bump on the second small arm member, second is round
Groove engages with the second circular protrusions realizes that the sealing of the first small arm member and the second small arm member is fixed；
S10, qualified products are cleaned using supersonic wave cleaning machine, the product after cleaning carries out appearance under incandescent lamp irradiation
Detection.
3. the processing method of excavator model forearm according to claim 2, it is characterised in that: in step s7, milling adds
Further milling is carried out to the first connection bump curved surface after work, while chamfered is carried out to the first connection bump.
4. the processing method of excavator model forearm according to claim 2, it is characterised in that: described that cutting edge of a knife or a sword side is gone to see to be artificial
It examines whether workpiece surface has cutting edge of a knife or a sword side, is removed while thering is cutting edge of a knife or a sword to pass through serration file if for cutting edge of a knife or a sword.
5. the processing method of excavator model forearm according to claim 2, it is characterised in that: the first connecting groove and first
Connection bump is adapted identical, the first connection bump of socket in the first connecting groove, and gap between the two is 0.8 ~ 1.5 milli
Meter, in the step s8, the diameter of connecting hole is 3mm.
6. the processing method of excavator model forearm according to claim 2, it is characterised in that: in step s3, by vacuum
Sucker is mounted on numerically-controlled machine tool；Rectangular aluminium alloy plate to be processed is placed on vacuum chuck, in scraper bowl mounting hole, liquid
It is inserted into positioning pin respectively in pressure mounting hole and large arm mounting hole, positioning pin and vacuum chuck are linked together by screw；It is fixed
Position pin and scraper bowl mounting hole, hydraulic installalion hole and large arm mounting hole match.
7. the processing method of excavator model forearm according to claim 2, it is characterised in that: further include in the step s1
Following steps: carrying out pincers processing in rectangular aluminium alloy plate surface, draw the center line of scraper bowl mounting hole, is drilled out using anvil is inhaled
Scraper bowl mounting hole.
8. the processing method of excavator model forearm according to claim 2, it is characterised in that: in step s8, will pass through
The connecting hole that drilling obtains carries out tapping process, and tapping obtains tool internal thread connecting hole.
9. a kind of excavator model forearm processed using processing method as described in claim 1, it is characterised in that: forearm packet
The first small arm member, the second small arm member and connection bolt are included, is offered respectively on the first small arm member and the second small arm member
With connecting hole, weight loss groove, the first forearm structure are offered respectively on the first small arm member and the opposite side of the second small arm member
The surface that part contacts the second small arm member is equipped with the first connecting groove, and the surface that the second small arm member contacts the first small arm member is set
There are the first connection bump, the first connection bump and the first connecting groove to adaptation, the first connection bump is rounded, diamond shape or side
Shape.
10. the processing method of excavator model forearm according to claim 1, it is characterised in that: the first small arm member
It is equipped with highland barley paper with the interface of the second small arm member, highland barley paper two sides has been coated with liquid sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526362.7A CN110237540A (en) | 2019-06-18 | 2019-06-18 | A kind of excavator model forearm and its processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526362.7A CN110237540A (en) | 2019-06-18 | 2019-06-18 | A kind of excavator model forearm and its processing method |
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| Publication Number | Publication Date |
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| CN110237540A true CN110237540A (en) | 2019-09-17 |
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| CN201910526362.7A Pending CN110237540A (en) | 2019-06-18 | 2019-06-18 | A kind of excavator model forearm and its processing method |
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| CN (1) | CN110237540A (en) |
Cited By (1)
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| CN113445565A (en) * | 2021-07-08 | 2021-09-28 | 徐工集团工程机械股份有限公司 | Supporting leg of engineering machinery and engineering machinery |
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Application publication date: 20190917 |