CN107891113A - Welding triangle circular arc fin integral type drill-rod clamping device and its processing method - Google Patents
Welding triangle circular arc fin integral type drill-rod clamping device and its processing method Download PDFInfo
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- CN107891113A CN107891113A CN201711366907.XA CN201711366907A CN107891113A CN 107891113 A CN107891113 A CN 107891113A CN 201711366907 A CN201711366907 A CN 201711366907A CN 107891113 A CN107891113 A CN 107891113A
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- 238000003466 welding Methods 0.000 title claims abstract description 24
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000005553 drilling Methods 0.000 claims abstract description 35
- 238000001125 extrusion Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims description 47
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
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- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000012545 processing Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 238000010891 electric arc Methods 0.000 abstract description 3
- 238000005493 welding type Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Forging (AREA)
Abstract
The invention provides welding triangle circular arc fin integral type drill-rod clamping device and its processing method, by uniform three groups of clamping cylinders in the range of 360 ° of whole circumference on the outside of three grip block halfbodies, the taking-up after installation and extruding before clamping and drilling rod extrude in drilling rod extrusion process is realized；It is by split type external mold extrusion process that the progress of triangle circular arc fin body of rod both ends is local upset, drilling rod internal and external screw thread joint is processed respectively at upset body of rod both ends, makes integral structure of the drill rod body with tool joint into weldless connection；The present invention realizes the processing and manufacturing of triangle circular arc fin integral type drilling rod, greatly improves triangle circular arc ribbed drill pipe bulk strength and torsional property；Mass defect of the plug-in type triangle circular arc ribbed drill pipe with friction welding type triangle circular arc ribbed drill pipe using manual electric arc welding or friction welding is avoided simultaneously, has promoted the progress and the development of tunnel probing cause of China's triangle circular arc fin technology.
Description
Technical field
The present invention relates to machining technology field, and in particular to welding triangle circular arc fin integral type drill-rod clamping fills
Put and its processing method.
Background technology
State's Triangle ID circular arc ribbed drill pipe helps discharge capacity strong due to gas at present, and rotational resistance is small, and rate of penetration is fast etc.
Major mining area widely uses feature at home.Because triangle circular arc ribbed drill pipe body of rod section is triangle tube ring-type, joint is
With tapered pipe screw thread, jackrod structure is special, and conventional triangle circular arc ribbed drill pipe generally uses plug in construction, i.e. both ends
Joint is processed into step, and the stub end of step is consistent with drilling rod body triangular outline, small head end and the triangle in drilling rod body of step
Shape is consistent, in small head end insertion drill rod body interior triangular, three face grooves is processed on the outside of the triangle circular arc fin body of rod, with both ends
Joint manual electric arc welding forms angle welding, realizes that plug-in type welds (accompanying drawing 12), due to low production efficiency, passes through technique skill later
Art is improved and forms triangle circular arc ribbed drill pipe friction welding type drilling rod (accompanying drawing 13), and production efficiency greatly improves.But friction welding (FW)
The defects of also the moment annoying the triangle circular arc fin body of rod manufacture cause development.Numerous technical staff for a long time, constantly from
Jackrod structure takes many hearts with being made an effort in process on welding triangle circular arc fin integral type drilling rod is realized
Blood, but method of manufacturing technology never preferably breaks through, it would be highly desirable to improve.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, there is provided welding triangle circular arc fin integral type
Drill-rod clamping device and its processing method, the processing and manufacturing of triangle circular arc fin integral type drilling rod is realized, reasonable in design, structure is tight
Gather.
To realize object above, the present invention is achieved by the following technical programs：
Welding triangle circular arc fin integral type drill-rod clamping device, including support, body of rod clamping device and extrusion forming
Mechanism, the body of rod clamping device are three halfbody combining structures, and the halfbody combining structure is realized by actuator one respectively
Pair cross-section is brought into close contact clamping for the outer circumferential face of the triangle circular arc fin tubulose body of rod, and the clamping pressure of uniformity is formed with this
Clamp force；The end face of the extrusion body and the body of rod is oppositely arranged, and drives shaping internal model along institute by actuator two
The movement of body of rod length direction is stated, realizes that the part of the rod end is upset with this；The body of rod clamping device and extrusion forming
Mechanism is each provided on the support.
Further, extrusion body includes actuator two and shaping internal model；The actuator two includes horizontal hydraulic pressure
Oil cylinder, connecting seat and guide holder；One end of the horizontal hydraulic pressure oil cylinder is connected with the supporting plate of the support, and the other end passes through company
Joint chair is connected with one end of the shaping internal model；The shaping internal model is located on the guide holder, and along the guide holder
On guide channel axially move horizontally.
Further, the front end of the shaping internal model is sequentially provided with conical moulded head, triangle circular arc fin from front to back
Boss and connecting portion；Stretch into extruding drill rod body to be oriented to and formed during extruding by conical moulded head and bore
Conical through-hole needed for knock-off joint；Pass through triangle circular arc fin boss and the end profile size of the body of rod and the die cavity of shaping external mold
Sectional dimension is consistent, realizes that shaping internal model moves in the body of rod placed cavity that the halfbody combining structure is formed, while realization pair
The abutting of rod end；By connecting portion axially across guide holder, and stretch out and be connected with connecting seat, realize shaping internal model axle
To horizontal movement.
Further, the halfbody combining structure includes actuator one, the axis of guide, grip block halfbody and external mold halfbody；Institute
It is clamping cylinder to state actuator one；One end of the clamping cylinder is connected with the support frame of the support, the other end with it is described
Axis connection is oriented to, drives the grip block halfbody and external mold halfbody to be moved along vertical rod body edge surface direction by the axis of guide
It is dynamic, realize that the external mold halfbody clamps to the outer circumferential face of the body of rod with this；The grip block halfbody is bolted
It is located at the outside of external mold half.
Further, the inner side edge at the both ends of the external mold halfbody is additionally provided with fillet surface.
Further, the external mold halfbody is provided with the stopper slot C of the grip block halfbody.
Based on the processing method of welding triangle circular arc fin integral type drill-rod clamping device, in turn include the following steps：
A, axially just position:After the completion of preparation, halfbody combining structure is promoted into external mold half by actuator one respectively
Body inwardly preliminarily forms the placed cavity of the body of rod, and body of rod outer circumferential face support just positioning states are formed with this；
B, circumferentially positioned clamping：The body of rod is axially placed in placed cavity along its, and drive actuator one inside again respectively
External mold halfbody is promoted, external mold halfbody outer circumferential face is brought into close contact the center section for clamping the body of rod, and rod end and shaping
Internal model is oppositely arranged；
C, rod end positions：The conical moulded head of shaping internal model is stretched into pressure ram body, and convex by triangle circular arc
Rib boss is correspondingly arranged with body of rod end profile；
D, body of rod one end is upset：Under the driving of horizontal hydraulic pressure oil cylinder, body of rod folder is arranged on by being molded the extruding of internal model H faces
Hold the in-house body of rod, from realize to the upset of rod end；
E, the body of rod other end is upset：Behind one end of the upset body of rod, the body of rod is taken out, the body of rod is turned around to extrude again another
End, carry out axially just positioning and circumferentially positioned clamping again to the body of rod afterwards, it is upset so as to complete the both ends of drilling rod；
H, the both ends of the body of rod carry out respectively it is upset after, the body of rod is taken out, upset body of rod both ends process in drilling rod respectively,
Male connection, the integral structure of weldless connection is ultimately formed into, enhance the torsional property of drilling rod.
Compared with prior art, beneficial effects of the present invention are：
1st, the present invention uses particular manufacturing craft hydraulic clamp, three grip block halfbody distributions using triangle tube frame body sectional material
On the outside of three shaping external mold halfbodies, and it is bolted.On the outside of three grip block halfbodies in the range of 360 ° of whole circumference
Uniform three groups of clamping cylinders, clamping cylinder are connected by the axis of guide with three grip block halfbodies again, and clamping cylinder presss from both sides as mould
The power source of tight device；Closure and the unlatching of grip block, the mobile drive of grip block halfbody are driven in the presence of clamping cylinder
The movement of three shaping external mold halfbodies；Using hydraulic clamp stable action, synchronism is strong, good clamping effect, efficiency high, realizes
The automation of the opening and closure of mould.
2nd, of the invention three grip block halfbodies and external mold halfbody are bolted, the mobile drive of grip block halfbody into
The movement of the halfbody of type external mold three is realized to be clamped in drilling rod extrusion process, is easy to the replacing of external mold, and external mold appearance and size one can be achieved
Cause, the different external mold of cavity dimension uses.
3rd, uniform three groups of clamping cylinders clamping dynamics is uniform in the range of 360 ° of hydraulic clamp grip block circumference of the present invention,
Strong applicability, the clamping of triangle circular arc ribbed drill pipe not only it had been applicable but also had been applicable the clamping of smooth surface round bur bar.
4th, internal model of the present invention is connected with horizontally disposed hydraulic cylinder, by the drive of lateral extrusion oil cylinder after body of rod clamping
Mould displacement, the processing of triangle circular arc fin integral type drilling rod is completed in the presence of interior external mold, internal model replacing speed is fast, realizes not
The extrusion process of same specification shape triangle circular arc fin integral type drilling rod and smooth surface integral type round bur bar.
5th, the present invention improves the manufacturability of the production of product, simple to operate, without skillfully grasping, and passes through the external mold of change
Cavity structure and cast outer mold structure triangle circular arc fin integral type drilling rod and smooth surface integral type round bur bar mechanization can be achieved
Production, product repeatability is good, and production efficiency is high, and manufacturing cost is low.
6th, the invention provides a kind of economic and reliable ground manufacture craft again conscientiously, triangle circular arc fin integral type drilling rod is realized
Processing and manufacturing, because drill rod body and joint are integral type structure, it is integrally strong to greatly improve triangle circular arc ribbed drill pipe
Degree and torsional property, while avoid plug-in type triangle circular arc ribbed drill pipe and used with friction welding type triangle circular arc ribbed drill pipe
Manual electric arc welding or the mass defect of friction welding, progress and the tunnel of China's triangle circular arc fin technology are promoted
The development of probing cause.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it is therefore apparent that drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is processing unit (plant) structural representation of the present invention；
Fig. 2 is processing unit (plant) A-A profiles in Fig. 1 of the present invention；
Fig. 3 is processing unit (plant) B-B profiles in Fig. 1 of the present invention；
Fig. 4 is the structural representation that the body of rod of the present invention is put into after shaping external mold clamping；
Fig. 5 is the side view that the body of rod of the present invention is put into after shaping external mold clamping；
Fig. 6 is structural representation of the triangle circular arc fin one drilling rod without interior chamfering of external mold halfbody of the present invention combination；
Fig. 7 is side view of the triangle circular arc fin one drilling rod without interior chamfering of external mold halfbody of the present invention combination；
Fig. 8 is the structural representation of chamfering in the triangle circular arc fin one drilling rod increase of external mold halfbody of the present invention combination；
Fig. 9 is the side view of chamfering in the triangle circular arc fin one drilling rod increase of external mold halfbody of the present invention combination；
Figure 10 is present invention shaping internal model structure schematic diagram；
Figure 11 is that side of the present invention is molded internal model D-D profiles；
Figure 12 is existing plug-in type drilling rod structural representation；
Figure 13 is existing friction type drill rod structural representation；
Figure 14 is using the workpiece blank structural representation after present invention extruding；
Figure 15 is using the final product structure schematic diagram after present invention processing；
Label declaration in figure：
1st, support；11st, supporting plate；12nd, support frame；13rd, stull；2nd, body of rod clamping device；21st, halfbody combining structure；
211st, actuator one；212nd, the axis of guide；213rd, grip block halfbody；214th, external mold halfbody；3rd, extrusion body；31st, actuator
Two；311st, horizontal hydraulic pressure oil cylinder；312nd, connecting seat；313rd, guide holder；32nd, it is molded internal model；321st, conical moulded head；322nd, three
Angle circular arc fin boss；323rd, connecting portion；4th, the body of rod；5th, bolt.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
With reference to accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 14 and Figure 15, to this hair
It is bright to be further described：
With reference to accompanying drawing 1, Fig. 2 and Fig. 3, a kind of welding triangle circular arc fin integral type drill-rod clamping device, including support
1st, body of rod clamping device 2 and extrusion body 3, the body of rod clamping device 2 are three halfbody combining structures 21, the halfbody
Combining structure 21 realizes that the outer circumferential face that pair cross-section is the triangle circular arc fin tubulose body of rod 4 is tight by actuator 1 respectively
Closely connected co-clip is tight, and the clamping thrust of uniformity is formed with this；The end face phase of the extrusion body 3 and the body of rod 4
Drive shaping internal model 32 to be moved along the length direction of the body of rod 4 to setting, and by actuator 2 31, the body of rod is realized with this
The part of 4 ends is upset；The body of rod clamping device 2 and extrusion body 3 are each provided on the support 1.
Extrusion body 3 includes actuator 2 31 and shaping internal model 32；The actuator 2 31 includes horizontal hydraulic pressure oil
Cylinder 311, connecting seat 312 and guide holder 313；One end of the horizontal hydraulic pressure oil cylinder 311 and the supporting plate 11 of the support 1 connect
Connect, the other end is connected by connecting seat 312 with one end of the shaping internal model 32；The shaping internal model 32 is located in the guiding
On seat 313, and axially moved horizontally along the guide channel on the guide holder 313.
The halfbody combining structure 21 includes actuator 1, the axis of guide 212, grip block halfbody 213 and external mold halfbody
214；The actuator 1 is clamping cylinder；One end of the clamping cylinder is connected with the support frame 12 of the support 1,
The other end is connected with the axis of guide 212, and the grip block halfbody 213 and external mold halfbody 214 are driven by the axis of guide 212
Moved along the vertical edge surface direction of the body of rod 4, realize that the external mold halfbody 214 clamps to the outer circumferential face of the body of rod 4 with this；
The grip block halfbody 213 is fixed by bolt 5 and is located at the lateral surface of external mold halfbody 214.The moving belt of grip block halfbody 213
The movement of the dynamic halfbody of shaping external mold three is realized to be clamped in drilling rod extrusion process, is easy to the replacing of external mold, outer die topography chi can be achieved
Very little consistent, the different external mold of cavity dimension uses.
Three support frames 12 are located on the support 1, and the actuator 1 is located at the support frame 12
Interior, the axis of guide 212 is located in the support frame 12, and is moved forward and backward in the passage of support frame 12.
The supporting plate 11 is oppositely arranged with the support frame 12；Between the supporting plate 11 and the support frame 12
Stull 13 is additionally provided with, the both ends of the stull 13 are fixedly connected with the supporting plate 11 with the support frame 12 respectively, are strengthened
Stability of the integrated model when upset.
With reference to accompanying drawing 10, Figure 11, Figure 14 and Figure 15, the front end of the shaping internal model 32 is sequentially provided with cone from front to back
Moulded head 321, triangle circular arc fin boss 322 and connecting portion 323；Stretch into the extruding body of rod 4 by conical moulded head 321
Row is oriented to and the conical through-hole needed for tool joint is formed during extruding；Pass through triangle circular arc fin boss 322 and bar
The end profile size of body 4 and the die cavity sectional dimension of shaping external mold are consistent, realize that shaping internal model 32 combines in the halfbody and tie
Moved in the placed cavity of the body of rod 4 that structure 21 is formed, while realize the abutting to the end of the body of rod 4；By connecting portion 323 axially across leading
To seat 313, and stretch out and be connected with connecting seat 312, realize shaping 32 axial horizontal movement of internal model；Realized with this by the bar
The both ends of body 4 profile in specific length is squeezed into triangle, and inner hole extruding is into the integral type drilling rod hair with certain taper through hole
Base.Shaping internal model 32 needed for two ends of drill extruding is connected with horizontally disposed horizontal hydraulic pressure oil cylinder 311, is led to after drill-rod clamping
Cross horizontal hydraulic pressure oil cylinder 311 and drive the shaping displacement of internal model 32, the both ends of the circular arc fin body of rod 4 of triangle tube anchor ring are being advised respectively
Profile is squeezed into triangle in measured length, and inner hole extruding is into the through hole with certain taper.Pass through split type external mold extrusion process
The progress of the both ends of the triangle circular arc fin body of rod 4 is local upset, drilling rod internal and external screw thread is processed respectively at the upset both ends of the body of rod 4 connects
Head, make the body of rod 4 and the integral structure with tool joint into weldless connection, enhance the torsional property of drilling rod.
The lateral wall axial direction of connecting portion 323 is additionally provided with strip stopper slot G, by guide holder 313 set with
The fixation limited block that strip stopper slot G coordinates, it can be moved strip stopper slot G, realized described vertically by fixed limited block
When connecting portion 323 moves axially, because the side of fixed limited block is spacing, 323 axial rotations of connecting portion are avoided, after being easy to
Continuous effective positioning processing.
With reference to accompanying drawing 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the inner side edge at the both ends of the external mold halfbody 214 is additionally provided with down
Edged surface；The external mold halfbody 214 is provided with the stopper slot C of the grip block halfbody 213.Smoothly put into for ease of the extruding body of rod 4
The importing external mold of the delta-type intracavitary of the body of rod clamping device 2 and shaping internal model 32, the three of the body of rod clamping device 2
Angular die cavity both ends process 60 ° of chamfering respectively, and during the 2-in-1 mould of the body of rod clamping device, the left and right end of shaping external mold carries platform
Rank, three halfbody matched moulds backstage terrace C contact with grip block section, are advantageous to external mold level during preventing drilling rod extruding and move
It is dynamic.
The processing method of welding triangle circular arc fin integral type drilling rod, in turn includes the following steps：
A, axially just position:After the completion of preparation, the halfbody combining structure 21 is pushed away by actuator 1 respectively
Dynamic external mold halfbody 214 inwardly preliminarily forms the placed cavity of the body of rod 4, and the outer circumferential face of the body of rod 4 support just positioning states are formed with this；
B, circumferentially positioned clamping：The body of rod 4 is axially placed in placed cavity along its, and drive the actuator one again respectively
211 inwardly promote the external mold halfbody 214, are brought into close contact the outer circumferential face of external mold halfbody 214 and clamp the body of rod 4
Center section, and the end of the body of rod 4 is oppositely arranged with the shaping internal model 32；
C, rod end positions：The conical moulded head 321 of the shaping internal model 32 is stretched into the extruding body of rod 4, and is passed through
Triangle circular arc fin boss 322 is correspondingly arranged with the end profile of the body of rod 4；
D, body of rod one end is upset：Under the driving of the horizontal hydraulic pressure oil cylinder 311, by being molded internal model 32H faces extruding peace
The body of rod 4 in the body of rod clamping device 2, from realize to the upset of the end of the body of rod 4；
E, the body of rod other end is upset：Behind one end of the upset body of rod 4, the body of rod 4 is taken out, the body of rod 4 is turned around to extrude again
The other end, carry out axially just positioning and circumferentially positioned clamping again to the body of rod 4 afterwards, it is upset so as to complete the both ends of drilling rod；
H, the both ends of the body of rod 4 carry out respectively it is upset after, the body of rod 4 is taken out, the upset both ends of the body of rod 4 process drilling rod respectively
Internal and external screw thread joint, the integral structure of weldless connection is ultimately formed into, enhance the torsional property of drilling rod.
Preferably, grip block halfbody 213 uses roughing profile with triangle circular arc ribbed drill pipe shaping external mold halfbody 214
Afterwards, wire cutting is again broken down into three halfbodies again into three halfbodies, three halfbodies after a composition one is reconfigured after machine-shaping,
The so described three halfbody gapless in matched moulds of body of rod clamping device 2, die cavity forms smooth triangular form cylinder, with triangle circular arc
The profile of the fin body of rod 4 is consistent, and the two ends of drill surface of extruding is smooth, no step and overlap, ensure that the outward appearance of drilling rod
Quality；Triangle fin body of rod body of rod material is R780,36Mn2v, 40Cr, 27SiMn, or D40, D50, D60.
The present invention is in use, uniform three groups of clampings again in the range of three 360 ° of 213 outside whole circumferences of grip block halfbody
Oil cylinder clamping cylinder is connected by the axis of guide 212 with three grip block halfbodies 213, and clamping cylinder is as the dynamic of device for clamping mould
Power source, guider of the axis of guide 212 as clamping cylinder.Closing for grip block halfbody 213 is driven in the presence of clamping cylinder
Close and open, the movement of three shaping external mold halfbodies 214 of mobile drive of grip block halfbody 213, stretched in clamping cylinder piston rod
The matched moulds of three shaping external mold halfbodies 214 of the mobile drive of grip block halfbody 213 forms mold cavity when going out, and clamps and to extrude
The body of rod 4, when clamping cylinder piston rod is retracted three shaping external mold halfbodies 214 of mobile drive of grip block halfbody 213 point
From the taking-up of the body of rod 4 after can now placing the extruding body of rod 4 and extruding.The present invention uses die for special purpose using triangle tube frame body sectional material
Has a hydraulic clamp, grip block and shaping external mold are three halfbody structures, three grip block halfbodies 213 of mould hydraulic clamp
Three outsides of shaping external mold halfbody 214 are distributed in, and are connected by bolt 5.In three outside whole circumferences of grip block halfbody 213
Uniform three groups of clamping cylinders, clamping cylinder are connected by the axis of guide 212 with three grip block halfbodies 213 again in the range of 360 °, are pressed from both sides
Power source of the locking oil cylinder as device for clamping mould.Closure and the unlatching of grip block, clamping are driven in the presence of clamping cylinder
The movement of three shaping external mold halfbodies 214 of mobile drive of block halfbody 213.Using hydraulic clamp stable action, synchronism is strong, folder
Holding effect fruit is good, efficiency high, realizes the automation of the opening and closure of mould.The technique that the present invention improves the production of product
Property, it is simple to operate, without skillfully grasping, it is convex by the cavity structure and the i.e. achievable triangle circular arc of cast outer mold structure of the external mold of change
Rib integral type drilling rod produces with smooth surface integral type round bur bar mechanization metaplasia, and product repeatability quite produces efficiency high, and manufacturing cost is low.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (7)
1. welding triangle circular arc fin integral type drill-rod clamping device, it is characterised in that including support (1), body of rod clamping machine
Structure (2) and extrusion body (3), the body of rod clamping device (2) are three halfbody combining structures (21), the halfbody combination
Structure (21) realizes the outer circumferential face that pair cross-section is the triangle circular arc fin tubulose body of rod (4) by actuator one (211) respectively
Clamping is brought into close contact, the clamping thrust of uniformity is formed with this；The extrusion body (3) and the body of rod (4)
End face is oppositely arranged, and drives shaping internal model (32) to be moved along the body of rod (4) length direction by actuator two (31), with this
Realize that the part of the body of rod (4) end is upset；The body of rod clamping device (2) and extrusion body (3) are each provided at described
On support (1).
2. welding triangle circular arc fin integral type drill-rod clamping device according to claim 1, it is characterised in that be squeezed into
Type mechanism (3) includes actuator two (31) and shaping internal model (32)；The actuator two (31) includes horizontal hydraulic pressure oil cylinder
(311), connecting seat (312) and guide holder (313)；One end of the horizontal hydraulic pressure oil cylinder (311) and the support of the support (1)
Plate (11) is connected, and the other end is connected by connecting seat (312) with one end of the shaping internal model (32)；The shaping internal model (32)
It is located on the guide holder (313), and is axially moved horizontally along the guide channel on the guide holder (313).
3. it is according to claim 2 welding triangle circular arc fin integral type drill-rod clamping device, it is characterised in that it is described into
The front end of type internal model (32) is sequentially provided with conical moulded head (321), triangle circular arc fin boss (322) and connection from front to back
Portion (323)；Stretch into the extruding body of rod (4) to be oriented to and formed during extruding by conical moulded head (321) and bore
Conical through-hole needed for knock-off joint；It is outer by the end profile size and shaping of triangle circular arc fin boss (322) and the body of rod (4)
The die cavity sectional dimension of mould is consistent, realizes that shaping internal model (32) is placed in the body of rod (4) that the halfbody combining structure (21) is formed
Intracavitary moves, while realizes the abutting to the body of rod (4) end；By connecting portion (323) axially across guide holder (313), and to
Outer extension is connected with connecting seat (312), realizes shaping internal model (32) axial horizontal movement.
4. welding triangle circular arc fin integral type drill-rod clamping device according to claim 1, it is characterised in that described half
Body combining structure (21) includes actuator one (211), the axis of guide (212), grip block halfbody (213) and external mold halfbody (214)；Institute
It is clamping cylinder to state actuator one (211)；One end of the clamping cylinder is connected with the support frame (12) of the support (1),
The other end is connected with the axis of guide (212), and the grip block halfbody (213) and external mold are driven by the axis of guide (212)
Halfbody (214) moves along the vertical body of rod (4) edge surface direction, realizes the external mold halfbody (214) to the body of rod (4) with this
Outer circumferential face clamps；The grip block halfbody (213) is located at external mold halfbody (214) lateral surface by bolt (5) fixation.
5. welding triangle circular arc fin integral type drill-rod clamping device according to claim 4, it is characterised in that described outer
The inner side edge at the both ends of mould halfbody (214) is additionally provided with fillet surface.
6. welding triangle circular arc fin integral type drill-rod clamping device according to claim 4, it is characterised in that described outer
Mould halfbody (214) is provided with the stopper slot C of the grip block halfbody (213).
7. the processing method based on welding triangle circular arc fin integral type drill-rod clamping device, it is characterised in that include successively such as
Lower step：
A, axially just position:After the completion of preparation, halfbody combining structure (21) is promoted by actuator one (211) respectively outer
Mould halfbody (214) inwardly preliminarily forms the placed cavity of the body of rod (4), and the body of rod (4) outer circumferential face support just positioning shape is formed with this
State；
B, circumferentially positioned clamping：The body of rod (4) is axially placed in placed cavity along its, and drive actuator one (211) again respectively
External mold halfbody (214) is inwardly promoted, external mold halfbody (214) outer circumferential face is brought into close contact the center section for clamping the body of rod (4),
And the body of rod (4) end is oppositely arranged with shaping internal model (32)；
C, rod end positions：The conical moulded head (321) of shaping internal model (32) is stretched into the extruding body of rod (4), and passes through three
Angle circular arc fin boss (322) is correspondingly arranged with the body of rod (4) end profile；
D, body of rod one end is upset：Under the driving of horizontal hydraulic pressure oil cylinder (311), it is arranged on by being molded the extruding of internal model (32) H faces
The body of rod (4) in body of rod clamping device (2), from realize to the upset of the body of rod (4) end；
E, the body of rod other end is upset：Behind one end of the upset body of rod (4), the body of rod (4) is taken out, the body of rod (4) is turned around to squeeze again
The other end is pressed, carries out axially just positioning and circumferentially positioned clamping again to the body of rod (4) afterwards, it is upset so as to complete the both ends of drilling rod；
H, the both ends of the body of rod (4) carry out respectively it is upset after, by the body of rod (4) take out, the upset body of rod (4) both ends process brill respectively
Bar internal and external screw thread joint, the integral structure of weldless connection is ultimately formed into, enhance the torsional property of drilling rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711366907.XA CN107891113B (en) | 2017-12-18 | 2017-12-18 | Welding-free triangular arc rib integrated drill rod clamping device and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366907.XA CN107891113B (en) | 2017-12-18 | 2017-12-18 | Welding-free triangular arc rib integrated drill rod clamping device and processing method thereof |
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| CN107891113B CN107891113B (en) | 2024-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114260398A (en) * | 2020-09-16 | 2022-04-01 | 宝山钢铁股份有限公司 | Forming device for preparing closed metal square frame and preparation method thereof |
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| Publication number | Publication date |
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| CN107891113B (en) | 2024-04-19 |
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