CN104999221B - The preparation method of the snake bone device of endoscope - Google Patents
The preparation method of the snake bone device of endoscope Download PDFInfo
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- CN104999221B CN104999221B CN201510207482.2A CN201510207482A CN104999221B CN 104999221 B CN104999221 B CN 104999221B CN 201510207482 A CN201510207482 A CN 201510207482A CN 104999221 B CN104999221 B CN 104999221B
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- pitch circle
- snake bone
- snake
- engaging lug
- bone
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- 241000270295 Serpentes Species 0.000 title claims abstract description 223
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 222
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000005520 cutting process Methods 0.000 claims abstract description 29
- 238000007493 shaping process Methods 0.000 claims abstract description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000004080 punching Methods 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims description 29
- 239000000047 product Substances 0.000 claims description 21
- 239000010935 stainless steel Substances 0.000 claims description 18
- 239000011265 semifinished product Substances 0.000 claims description 16
- 238000003672 processing method Methods 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 9
- 238000003892 spreading Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000001331 nose Anatomy 0.000 claims 7
- 210000003128 head Anatomy 0.000 claims 1
- 238000005498 polishing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000650134 Homo sapiens WAS/WASL-interacting protein family member 2 Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 102100027540 WAS/WASL-interacting protein family member 2 Human genes 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/0011—Manufacturing of endoscope parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of preparation method of the snake bone device of endoscope, the snake bone device include the preceding pitch circle of snake, rear pitch circle, connect bearing pin and be connected between preceding pitch circle and rear pitch circle several in pitch circle, specific preparation process is successively：Selection；The procedure of processing of the preceding pitch circle of snake bone, middle pitch circle and rear pitch circle is cutting, leveling and polishing；In cutting profile, the clamping gap to be connected with connecting shaft hole and corresponding connecting shaft hole is also respectively cut out in pitch circle after pitch circle and snake bone in snake bone；Bearing pin is connected from stainless steel wire on lathe, machine-shaping by drawing；Using special Wire channel in building forming frock to before snake bone, the threading channel opening of middle pitch circle implement punching press, form axial Wire channel in building；Pitch circle is assembled with special assembly tooling by connecting bearing pin with pitch circle in snake bone before snake bone, and same step is by pitch circle assembly connection after pitch circle in pitch circle, snake bone in two snake bones and snake bone into final snake bone device.Present invention process is reasonable, and obtained snake bone is not required to rivet.
Description
Technical field
The present invention relates to the preparation method of the accessory of a kind of medical or industrial soft endoscope, and in particular to is peeped in one kind
The preparation method of the snake bone device of mirror.
Background technology
Existing endoscope is all to pass through drawing and snake by built-in snake bone when angle of bend realizes head-bent deflecting
The method of the steel wire rope of bone connection makes what it bent.And pitch circle in pitch circle, snake bone before the snake bone that the snake bone in prior art includes
Connected by closing-up with pitch circle after snake bone, due to the preparation method of this closing-up, easily occurred as follows successively
Defect, for example, first, the axle center of riveting frock and rivet is not excessive in same axis or riveting strength, will result in She Guzhong
Deformed at the riveting of pitch circle；Secondth, in riveting process, if riveting pressure is excessive, workpiece surface easily sustains damage
Or cause the situation that deforming occurs in rivet or manufactured head is cracking；3rd, the workpiece after riveting easily occur riveting less than
Position, or not firm enough the phenomenon of riveting；Therefore, higher is required to the riveting process skill of worker so that low production efficiency, and
And also it is easier the underproof situation of riveting quality occur, the phenomenon that rivet comes off is there is also sometimes, causes final finished
Defect is more, scrappage is high, and it is also higher so to allow for production cost.
The content of the invention
The purpose of the present invention is：A kind of rational technology is provided, and obtained snake bone is not required to rivet, is easy to assemble, Yi Jisheng
The preparation method of the snake bone device of efficiency high and the low endoscope of production cost is produced, with overcome the deficiencies in the prior art.
In order to achieve the above object, the technical scheme is that：A kind of preparation method of the snake bone device of endoscope, institute
Snake bone device is stated including pitch circle, multiple connection bearing pins after pitch circle, snake bone before snake bone and is connected to pitch circle and snake bone deutomerite before snake bone
Pitch circle in several snake bones between circle, specific preparation process are successively：
First, selection：
A, pitch circle is consistent with the inside/outside diameter size of pitch circle after snake bone in pitch circle, snake bone before the snake bone, and selection is stainless
Steel pipe；
B, connect bearing pin selection is STAINLESS STEEL WIRE；
2nd, before snake bone pitch circle processing method：
A, from stainless steel tube, it is cut into 100 mm~300mm length；
B, using the profile of pitch circle before wire cutting machine tool or laser equipment processing snake bone, including before rear portion engaging lug and snake bone
Threading channel opening in pitch circle side wall, meet pitch circle semi-finished product drawing requirement before snake bone；
C, to the rear portion engaging lug of pitch circle before snake bone, first flattened, be then washes out rear portion connecting shaft hole, to snake bone prosthomere
Enclose finished product；
D, the finished product of pitch circle before the snake bone that machines is processed by shot blasting, removes flash removed；
3rd, in snake bone pitch circle processing method：
A, from stainless steel tube, it is cut into 100 mm~300mm length；
B, connected using the profile of pitch circle in wire cutting machine tool or laser equipment processing snake bone, including the first engaging lug and second
Threading channel opening in lug, and snake bone in pitch circle side wall, meet pitch circle semi-finished product drawing requirement in snake bone；
C, to the first engaging lug and the second engaging lug of pitch circle in snake bone, first flattened, then the second engaging lug is rushed
Go out the second connecting shaft hole, machine into snake bone pitch circle finished product；
D, the finished product of pitch circle in the snake bone that machines is processed by shot blasting, removes flash removed；
4th, after snake bone pitch circle processing method：
A, from stainless steel tube, it is cut into 100 mm~300mm length；
B, using the profile of pitch circle after wire cutting machine tool or laser equipment processing snake bone, including anterior engaging lug, snake is met
Pitch circle semi-finished product drawing requirement after bone；
C, to the anterior engaging lug of pitch circle after snake bone, flattened, pitch circle finished product after machining to snake bone;
D, the finished product of pitch circle after the snake bone that machines is processed by shot blasting, removes flash removed；
Its innovative point is：
（1）, in the snake bone pitch circle using during the profile of pitch circle, also being wrapped in wire cutting machine tool or laser equipment processing snake bone
Include and cut out the clamping gap to be connected with the first connecting shaft hole of the first engaging lug in snake bone on the perisporium of pitch circle one end and
One connecting shaft hole, meet semi-finished product drawing requirement；
（2）, after the snake bone pitch circle using during the profile of pitch circle, also being wrapped after wire cutting machine tool or laser equipment processing snake bone
Include the anterior clamping gap for cutting out and being connected with the anterior connecting shaft hole of the anterior engaging lug after snake bone on the perisporium of pitch circle one end
And rear portion connecting shaft hole, meet semi-finished product drawing requirement；
（3）, it is described connection bearing pin include the first stop nose, enlarged diameter section, reduced diameter section and the second stop nose, selection
Stainless steel wire is on lathe, machine-shaping by drawing；
（4）, utilize special Wire channel in building forming frock in pitch circle before snake bone and snake bone pitch circle threading channel opening implement punching
Pressure, forms axial Wire channel in building；
（5）, the snake bone assembly connection the step of it is as follows：
1., by the rear portion engaging lug insertion snake bone of pitch circle before snake bone on the inside of the first engaging lug of pitch circle, and connect rear portion
The rear portion connecting shaft hole of lug is corresponding with the first connecting shaft hole of the first engaging lug；
2., will connect second stop nose one end of bearing pin from the rear portion connecting shaft hole of pitch circle rear portion engaging lug before snake bone to
Install outside, while bearing pin will be connected from the rear portion connecting shaft hole of pitch circle before snake bone using the location mandril of special assembly tooling
First stop nose position extrudes, and is forced outwardly second stop nose one end of connection bearing pin, then with axis hole
The end of extruded rod withstand and extrude the rear portion engaging lug of pitch circle before snake bone so that the clamping gap spreading of pitch circle is extremely in snake bone
The second stop nose one end for connecting bearing pin passes through the first connecting shaft hole of pitch circle in snake bone, now connects the first backstop of bearing pin
Plush copper end face and the inwall of rear portion engaging lug offset, and the reduced diameter section for connecting bearing pin is mounted in the first connection of pitch circle in snake bone just
In axis hole, clamp gap and reset；
3., same step by pitch circle assembly connection after pitch circle in pitch circle, snake bone in two snake bones and snake bone into final snake
Bone device.
In such scheme, in the snake bone pitch circle using in wire cutting machine tool or laser equipment processing snake bone pitch circle it is outer
During shape, in addition to cut out the pitch circle in snake bone and, by the arc technique gap at its root with the clamping symmetrical arrangement of gap, accord with
Close drawing requirement；
Pitch circle after wire cutting machine tool or laser equipment processing snake bone using during the profile of pitch circle, in addition to cutting after the snake bone
Cutting out the pitch circle after snake bone, by the arc technique gap at its root with the anterior clamping symmetrical arrangement of gap, meeting drawing will
Ask.
In the above-mentioned technical solutions, the workbench of the wire cutting machine tool or laser equipment is provided with Special clamping positioning work
Dress, the Special clamping positioning tool include sidepiece reference block, front end reference block and locating piece, and it is fixed that workpiece to be cut is placed on
In the slotting material hole of position block, then workpiece is fixedly connected with locating piece using trip bolt, now, driving locating piece moves forward
And offseted with front end reference block, then locating piece is bonded with sidepiece reference block, finally locating piece is fixed on the table.
In the above-mentioned technical solutions, the special Wire channel in building forming frock includes the base being arranged separately on work bench of punch press
Quasi- positioning mould holder and casting die fixed seat, and the forming punching head being fixedly connected with punch press drift；It is solid on the origin reference location die holder
Surely there is workpiece locating shaft, and workpiece locating shaft is provided with axial shaping groove, workpiece to be processed is sleeved on workpiece locating shaft, and work
The origin reference location delineation position that one end of part is provided with workpiece locating shaft one end offsets；The casting die fixed seat is consolidated provided with casting die
The casting die centring ring positioning that dead axle, the other end of workpiece and one end of casting die fixing axle are provided with offsets, the casting die fixing axle
The other end be provided with casting die locating shaft control handle；Workpiece and origin reference location circle and casting die centring ring are on the same axis.
In the above-mentioned technical solutions, the shaping mould includes the female mold core of leveling snake bone engaging lug, in-between hole
Positioned provided with locating shaft, vertical direction have with the equiform concave plane of engaging lug, mould has and engaging lug shape one in shaping
The convex flat face of sample.
In the above-mentioned technical solutions, the leveling process is implemented on small punch press lower work platform, work to be flattened
Part is the same provided with the engaging lug shape as mould in shaping in die holder lower position on the core rod and die holder of shaping mould
Convex flat face, after punch press downward punching press, that is, complete the leveling process of workpiece engaging lug.
In the above-mentioned technical solutions, the connection bearing pin of the machine-shaping is heat-treated, to intensity up to 45~55RHC,
Removal surface scale is polished again.
Good effect is possessed by the present invention：Because pitch circle is utilized respectively wire cutting after pitch circle in the snake bone and snake bone
In lathe or laser equipment processing snake bone during the profile of pitch circle, in addition to the connecting shaft hole cut out accordingly with engaging lug mutually passes through
Logical clamping gap and anterior clamping gap, meet semi-finished product drawing requirement；The connection bearing pin includes the first stop nose, big
Diameter segment, reduced diameter section and the second stop nose, from stainless steel wire on lathe, machine-shaping by drawing；Snake bone fills
Timing, pitch circle is assembled using special assembly tooling in pitch circle and snake bone before snake bone, in snake bone the first engaging lug of pitch circle and
Second engaging lug is directly corresponding to pitch circle in the rear portion engaging lug of pitch circle, snake bone before adjacent snake bone by connecting bearing pin respectively
Engaging lug be connected with the anterior engaging lug of pitch circle after snake bone, without connecting by closing-up, therefore, be easy to be equipped with,
And be not in the underproof situation of riveting quality, be also not in the phenomenon that rivet comes off so that production efficiency is high, final production
The assembling quality of product is good, meanwhile, production cost is relatively low；Using special Wire channel in building forming frock in pitch circle and snake bone before snake bone
The threading channel opening of pitch circle implements punching press, forms axial Wire channel in building, therefore, is easy to assemble with haulage cable.Snake bone of the present invention
Preparation method, not only rational technology, obtained snake bone be not required to rivet, and be not in closing-up preparation method lack
Fall into, and production efficiency is high low with production cost.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present invention；
Fig. 2 is Fig. 1 A-A schematic cross-sectional views；
Fig. 3 is Fig. 1 B-B schematic cross-sectional views；
Fig. 4 is Fig. 2 C portions enlarged diagram；
Fig. 5 is the structural representation of pitch circle in snake bone；
Fig. 6 is Fig. 5 D-D schematic cross-sectional views；
Fig. 7 is the structural representation of pitch circle after snake bone；
Fig. 8 is Fig. 7 E-E schematic cross-sectional views；
Fig. 9 is the structural representation of Special clamping positioning tool；
Figure 10 is Fig. 9 F-F schematic cross-sectional views；
Figure 11 is the structural representation of special Wire channel in building forming frock；
Figure 12 is the structural representation of workpiece locating shaft in Figure 11；
Figure 13 is the structural representation of special assembly tooling.
Embodiment
Below in conjunction with accompanying drawing and the embodiment provided, the present invention is further illustrated, but is not limited thereto.
As shown in figs. 1-13, the preparation method of the series of snake bone device model BS types 8.5 of a kind of endoscope, the snake
Bone device includes before snake bone 3,22 connection bearing pins 4 of pitch circle after pitch circle 1, snake bone and is connected to pitch circle 1 and snake bone deutomerite before snake bone
Pitch circle 2 in 10 snake bones between circle 3, specific preparation process are successively：
First, selection and processing before preparation：
A, the internal diameter size of pitch circle 3 is external diameter 8.5mm after pitch circle 2 and snake bone in pitch circle 1, snake bone before the snake bone, interior
Footpath is 8mm, and selection is stainless steel tube；
What b, connection bearing pin 4 was selected is model Cr18Ni9T, can certainly select 0Cr18Ni9 or be
1Cr17Mn6Ni5N STAINLESS STEEL WIREs；
C, the preparation before processing
As shown in Fig. 9,10, for the ease of processing, and to the good clamping position of workpiece, the wire cutting machine tool or laser
The workbench of equipment is provided with Special clamping positioning tool 10, and the Special clamping positioning tool includes sidepiece reference block 101, preceding
Reference block 102 and locating piece 103 are held, is 8mm by workpiece diameter size to be cut, selection is that stainless steel tube is placed on positioning
In the slotting material hole 1031 of block 103, then penetrated workpiece stainless steel tube using trip bolt in the screw hole 104 of locating piece 103
It is fixedly connected with locating piece 103, now, driving locating piece 103 is moved forward and offseted with front end reference block 102, then will positioning
Block 103 is bonded with sidepiece reference block 101, finally fixes locating piece 103 on the table.
2nd, before snake bone pitch circle 1 processing method：
A, from stainless steel tube, it is cut into 100 mm~300mm length；
B, using wire cutting machine tool or laser equipment to the interior internal diameter size clamped of locating piece 103 fixed on the table
The profile of pitch circle 1 before snake bone, including wearing in pitch circle side wall before rear portion engaging lug 1-1 and snake bone are processed for 8mm stainless steel tube
Wire casing opening, meet the semi-finished product drawing requirement of pitch circle 1 before snake bone；
C, to the rear portion engaging lug 1-1 of pitch circle 1 before snake bone, first flattened, be then washes out rear portion connecting shaft hole 1-1-1,
The finished product of pitch circle 1 before to snake bone；
D, the finished product of pitch circle 1 before the snake bone that machines is processed by shot blasting, removes flash removed so that any surface finish；
3rd, in snake bone pitch circle 2 processing method：
A, from stainless steel tube, it is cut into 100 mm~300mm length；
B, using wire cutting machine tool or laser equipment to the interior internal diameter size clamped of locating piece 103 fixed on the table
The profile of pitch circle 2 in snake bone, including the first engaging lug 2-1 and the second engaging lug 2-2, and snake are processed for 8mm stainless steel tube
Threading channel opening in bone in pitch circle side wall, meet the semi-finished product drawing requirement of pitch circle 2 in snake bone；Also include cut out with snake bone
The clamping gap 2-1-1 and first that the first connecting shaft hole 2-1-2 of the first engaging lug 2-1 on one end perisporium of pitch circle 2 connects
Connecting shaft hole 2-1-2, meet semi-finished product drawing requirement；The radial width for clamping gap 2-1-1 is 0.4mm；
Gap is clamped for the ease of spreading so that engaging lug has certain elasticity, as shown in Fig. 5,7, in the snake bone
When pitch circle 2 processes the profile of pitch circle in snake bone using wire cutting machine tool or laser equipment, in addition to cut out the pitch circle 2 in snake bone
By the arc technique gap 6 at its root with the clamping symmetrical arrangements of gap 2-1-1, meet drawing requirement；
C, to the first engaging lug 2-1 and the second engaging lug 2-2 of pitch circle 2 in snake bone, first flattened, then connected to second
Lug 2-2 goes out the second connecting shaft hole 2-2-1, machines into snake bone the finished product of pitch circle 2；
D, the finished product of pitch circle 2 in the snake bone that machines is processed by shot blasting, removes flash removed so that any surface finish；
4th, after snake bone pitch circle 3 processing method：
A, from stainless steel tube, it is cut into 100 mm~300mm length；
B, using wire cutting machine tool or laser equipment to the interior internal diameter size clamped of locating piece 103 fixed on the table
The profile of pitch circle after snake bone, including anterior engaging lug 3-1 are processed for 8mm stainless steel tube, meets the semi-finished product figure of pitch circle 3 after snake bone
Paper requirement；Also include cutting out the anterior connecting shaft hole 3-1-2 with the anterior engaging lug 3-1 on one end perisporium of pitch circle after snake bone 3
The anterior clamping gap 3-1-1 and rear portion connecting shaft hole 3-1-2 to connect, meets semi-finished product drawing requirement；The anterior clamping
Gap 3-1-1 radial width is 0.4mm；
Gap is clamped for the ease of spreading so that engaging lug has certain elasticity, in addition to cuts out in snake bone deutomerite
Circle 3 at its root by, with the anterior arc technique gap 6 for clamping the symmetrical arrangements of gap 3-1-1, meeting drawing requirement.The arc
The width of shape technique gap 6 is 0.9mm.
C, to the anterior engaging lug 3-1 of pitch circle 3 after snake bone, flattened, the finished product of pitch circle 3 after machining to snake bone;
D, the finished product of pitch circle 3 after the snake bone that machines is processed by shot blasting, removes flash removed so that any surface finish；
5th, the processing method for connecting bearing pin 4：
It is convex that the connection bearing pin 4 includes the first stop nose 4-1, enlarged diameter section 4-2, reduced diameter section 4-3 and the second backstop
Head 4-4, from stainless steel wire on lathe, machine-shaping by drawing；In order that the hardness that must connect bearing pin 4 is good, it is described
The connection bearing pin 4 of machine-shaping is heat-treated, and hardness is up to 45~55RHC, then is polished removal surface scale.
6th, Wire channel in building 5 is gone out to pitch circle 2 in pitch circle 1 before snake bone and snake bone
Punching is implemented to the threading channel opening of pitch circle 2 in pitch circle 1 before snake bone and snake bone using special Wire channel in building forming frock 30
Pressure, forms axial Wire channel in building 5；
As shown in Figure 11,12, for the ease of going out Wire channel in building 5, the special Wire channel in building forming frock 30 includes separating cloth
Put origin reference location die holder 301 and casting die fixed seat 302 on work bench of punch press, and the shaping being fixedly connected with punch press drift
Drift 303；Workpiece locating shaft 304 is fixed with the origin reference location die holder 301, and workpiece locating shaft 304 is provided with and is axially molded
Groove 3041, workpiece to be processed are sleeved on workpiece locating shaft 304, and one end of workpiece on the one end of workpiece locating shaft 304 with setting
Some positioning of origin reference location circle 308 offset；The casting die fixed seat 302 is provided with casting die fixing axle 305, the other end of workpiece with
The positioning of casting die centring ring 306 that one end of casting die fixing axle 305 is provided with is offseted, and the other end of the casting die fixing axle 305 is set
There is casting die locating shaft control handle 307；Workpiece and origin reference location circle 308 and casting die centring ring 306 are on the same axis.The machine
The fixed seat of bed is logical to be threadedly coupled with forming punching head fixed seat 309, and forming punching head 303 is crossed trip bolt and fixed with forming punching head
Seat 309 is fixedly connected.In specific operation process, when manipulation casting die locating shaft control handle 307 is with horizontal plane, casting die is solid
Dead axle 305 moves right, and casting die centring ring 306 is offseted with workpiece, again during rotary pressing member locating shaft control handle 307,
Casting die fixing axle 305 is moved to the left, and casting die centring ring 306 is separated with workpiece.
7th, the step of snake bone assembly connection is as follows：
1., by before snake bone pitch circle 1 rear portion engaging lug 1-1 insertion snake bone in pitch circle 2 the first engaging lug 2-1 on the inside of, and
Make rear portion engaging lug 1-1 rear portion connecting shaft hole 1-1-1 and the first engaging lug 2-1 the first connecting shaft hole 2-1-2 corresponding；
2., the second stop nose 4-4 one end for connecting bearing pin 4 connected from the rear portion engaging lug 1-1 of pitch circle before snake bone 1 rear portion
Spindle hole 1-1-1 is outwards installed, while is connected using the location mandril 201 of special assembly tooling 20 from the rear portion of pitch circle 1 before snake bone
The the first stop nose 4-1 positions for connecting bearing pin 4 are extruded in the 1-1-1 of spindle hole, make the second stop nose 4- of connection bearing pin 4
4 one end are forced outwardly, and are then withstood with the end of the extruded rod 202 with axis hole and are extruded the rear portion of pitch circle 1 before snake bone
Engaging lug 1-1 so that the clamping gap 2-1-1 spreadings of pitch circle 2 extremely connect second stop nose 4-4 one end of bearing pin 4 in snake bone
The first connecting shaft hole 2-1-2 of pitch circle 2 through in snake bone, the first stop nose 4-1 end faces and rear portion for now connecting bearing pin 4 connect
Lug 1-1 inwall offsets, and the reduced diameter section 4-3 for connecting bearing pin 4 is mounted in the first connecting shaft hole 2-1- of pitch circle 2 in snake bone just
In 2, clamp gap 2-1-1 and reset；
3., same step by pitch circle assembly connection after pitch circle in pitch circle, snake bone in two snake bones and snake bone into final snake
Bone device.
4., after in snake bone, finally assembling is complete, in order to further improve the fastness after the assembling of snake bone and engaging lug
Bonding strength, can argon arc welding arc technique gap 6.
Shaping mould of the present invention includes the female mold core of leveling snake bone engaging lug, and in-between hole is determined provided with locating shaft
Position, vertical direction have with the equiform concave plane of engaging lug, mould has and the equiform convex flat face of engaging lug in shaping.Institute
State leveling process on small punch press lower work platform to implement, workpiece to be flattened is mounted in the core rod and die holder of shaping mould
On, the equiform convex flat face of engaging lug as mould in shaping is provided with die holder lower position, after punch press downward punching press,
Complete the leveling process of workpiece engaging lug.
The shaping comprises the concrete steps that：It will treat that the workpiece of shaping positions with the locating shaft of female mold core to assemble, and work
The engaging lug of part assembles with concave plane positioning, and under the concave plane of female mold core and shaping mould convex flat face male-female engagement, when
The convex flat face touched after the downward punching press of punch press in shaping and the concave plane male-female engagement of female mold core, it is real to the engaging lug of workpiece
Apply leveling.
The polishing to the finished product of pitch circle 3 after pitch circle 2 in pitch circle 1, snake bone before the snake bone that machines and snake bone of the present invention
Processing can be that chemical polishing is handled or by polishing machine polishing.
The preparation method of the present invention, not only rational technology, and obtained snake bone is not required to rivet, is easy to be equipped with, and also will not
Appearance riveting quality is unqualified and the phenomenon that rivet comes off occurs so that production efficiency is high, and the assembling quality of final products is good, together
When, production cost is relatively low.
Claims (7)
1. a kind of preparation method of the snake bone device of endoscope, the snake bone device includes pitch circle after pitch circle (1), snake bone before snake bone
(3), multiple connection bearing pins (4) and it is connected to pitch circle in several snake bones before snake bone after pitch circle (1) and snake bone between pitch circle (3)
(2), specific preparation process is successively：
First, selection：
A, pitch circle (2) is consistent with the inside/outside diameter size of pitch circle (3) after snake bone in pitch circle (1), snake bone before the snake bone, and selection is
Stainless steel tube；
B, connect bearing pin (4) selection is STAINLESS STEEL WIRE；
2nd, before snake bone pitch circle (1) processing method：
A, from stainless steel tube, it is cut into 100mm~300mm length；
B, the profile of pitch circle before wire cutting machine tool or laser equipment processing snake bone, including rear portion engaging lug (1-1) and snake bone are utilized
Threading channel opening in preceding pitch circle side wall, meet pitch circle (1) semi-finished product drawing requirement before snake bone；
C, to the rear portion engaging lug (1-1) of pitch circle (1) before snake bone, first flattened, be then washes out rear portion connecting shaft hole (1-1-
1), to pitch circle (1) finished product before snake bone；
D, the finished product of pitch circle (1) before the snake bone that machines is processed by shot blasting, removes flash removed；
3rd, in snake bone pitch circle (2) processing method：
A, from stainless steel tube, it is cut into 100mm~300mm length；
B, the profile of pitch circle in wire cutting machine tool or laser equipment processing snake bone, including the first engaging lug (2-1) and second are utilized
Engaging lug (2-2), and the threading channel opening in snake bone in pitch circle side wall, meet pitch circle (2) semi-finished product drawing requirement in snake bone；
C, to the first engaging lug (2-1) and the second engaging lug (2-2) of pitch circle (2) in snake bone, first flattened, then to second
Engaging lug (2-2) goes out the second connecting shaft hole (2-2-1), machines into snake bone pitch circle (2) finished product；
D, the finished product of pitch circle (2) in the snake bone that machines is processed by shot blasting, removes flash removed；
4th, after snake bone pitch circle (3) processing method：
A, from stainless steel tube, it is cut into 100mm~300mm length；
B, using the profile of pitch circle after wire cutting machine tool or laser equipment processing snake bone, including anterior engaging lug (3-1), snake is met
Pitch circle (3) semi-finished product drawing requirement after bone；
C, to the anterior engaging lug (3-1) of pitch circle (3) after snake bone, flattened, pitch circle (3) finished product after machining to snake bone；
D, the finished product of pitch circle (3) after the snake bone that machines is processed by shot blasting, removes flash removed；
It is characterized in that：
(1) when, pitch circle (2) processes the profile of pitch circle in snake bone using wire cutting machine tool or laser equipment in the snake bone, also wrap
Include to cut out and connected with the first connecting shaft hole (2-1-2) of the first engaging lug (2-1) in snake bone on the perisporium of pitch circle (2) one end
Clamping gap (2-1-1) and the first connecting shaft hole (2-1-2), meet semi-finished product drawing requirement；
(2), after the snake bone pitch circle (3) using wire cutting machine tool or laser equipment processing snake bone after pitch circle profile when, also wrap
Include to cut out and connected with the anterior connecting shaft hole (3-1-2) of the anterior engaging lug (3-1) after snake bone on the perisporium of pitch circle (3) one end
It is anterior clamp gap (3-1-1) and rear portion connecting shaft hole (3-1-2), meet semi-finished product drawing requirement；
(3), the connection bearing pin (4) includes the first stop nose (4-1), enlarged diameter section (4-2), reduced diameter section (4-3) and the
Two stop noses (4-4), from stainless steel wire on lathe, machine-shaping by drawing；
(4), the threading channel opening using special Wire channel in building forming frock (30) to pitch circle (2) in pitch circle (1) before snake bone and snake bone
Implement punching press, form axial Wire channel in building (5)；
(5), the step of snake bone assembly connection is as follows：
1., by before snake bone pitch circle (1) rear portion engaging lug (1-1) insertion snake bone in pitch circle (2) the first engaging lug (2-1) in
Side, and make the rear portion connecting shaft hole (1-1-1) of rear portion engaging lug (1-1) and the first connecting shaft hole (2- of the first engaging lug (2-1)
It is 1-2) corresponding；
2., will connect bearing pin (4) the second stop nose (4-4) one end after pitch circle (1) rear portion engaging lug (1-1) before snake bone
Portion's connecting shaft hole (1-1-1) outwards installs, at the same using special assembly tooling (20) location mandril (201) from pitch circle before snake bone
(1) the first stop nose (4-1) position extruding of bearing pin (4) will be connected in rear portion connecting shaft hole (1-1-1), makes connection bearing pin
(4) the second stop nose (4-4) one end is forced outwardly, and is then withstood with the end of the extruded rod (202) with axis hole
And extrude the rear portion engaging lug (1-1) of pitch circle (1) before snake bone so that clamping gap (2-1-1) spreading of pitch circle (2) is extremely in snake bone
The second stop nose (4-4) one end for connecting bearing pin (4) passes through the first connecting shaft hole (2-1-2) of pitch circle (2) in snake bone, now
The first stop nose (4-1) end face of connection bearing pin (4) and the inwall of rear portion engaging lug (1-1) offset, and connect the small of bearing pin (4)
Diameter segment (4-3) is mounted in snake bone in the first connecting shaft hole (2-1-2) of pitch circle (2) just, is clamped gap (2-1-1) and is resetted；
3., same step fills pitch circle assembly connection after pitch circle in pitch circle, snake bone in two snake bones and snake bone into final snake bone
Put.
2. the preparation method of the snake bone device of endoscope according to claim 1, it is characterised in that：
When pitch circle (2) processes the profile of pitch circle in snake bone using wire cutting machine tool or laser equipment in the snake bone, in addition to cut
The pitch circle (2) in snake bone is cut out, by the arc technique gap (6) at its root with clamping gap (2-1-1) symmetrical arrangement, to accord with
Close drawing requirement；
Pitch circle (3) after wire cutting machine tool or laser equipment processing snake bone using during the profile of pitch circle, in addition to cutting after the snake bone
Cut out the pitch circle (3) after snake bone and clamp the arc technique gap of gap (3-1-1) symmetrical arrangement by its root and front portion
(6) drawing requirement, is met.
3. the preparation method of the snake bone device of endoscope according to claim 1, it is characterised in that：The wire cutting machine tool
Or the workbench of laser equipment is provided with Special clamping positioning tool (10), the Special clamping positioning tool includes sidepiece benchmark
Block (101), front end reference block (102) and locating piece (103), workpiece to be cut is placed on to the slotting material hole of locating piece (103)
(1031) in, then workpiece is fixedly connected with locating piece (103) using trip bolt, now, driving locating piece (103) is forward
Movement is simultaneously offseted with front end reference block (102), then locating piece (103) is bonded with sidepiece reference block (101), finally by locating piece
(103) fix on the table.
4. the preparation method of the snake bone device of endoscope according to claim 1, it is characterised in that：The special Wire channel in building
Forming frock (30) includes the origin reference location die holder (301) and casting die fixed seat (302) being arranged separately on work bench of punch press, with
And the forming punching head (303) being fixedly connected with punch press drift；Workpiece locating shaft is fixed with the origin reference location die holder (301)
(304), and workpiece locating shaft (304) is provided with axial shaping groove (3041), and workpiece to be processed is sleeved on workpiece locating shaft (304)
On, and origin reference location circle (308) positioning that one end of workpiece is provided with workpiece locating shaft (304) one end offsets；The casting die
Fixed seat (302) is provided with casting die fixing axle (305), what the other end of workpiece was provided with one end of casting die fixing axle (305)
Casting die centring ring (306) positioning offsets, and the other end of the casting die fixing axle (305) is provided with casting die locating shaft control handle
(307)；Workpiece and origin reference location circle (308) and casting die centring ring (306) are on the same axis.
5. the preparation method of the snake bone device of endoscope according to claim 1, it is characterised in that：Shaping mould includes whole
The female mold core of flat snake bone engaging lug, in-between hole position provided with locating shaft, had in vertical direction as engaging lug shape
Concave plane, mould has and the equiform convex flat face of engaging lug in shaping.
6. the preparation method of the snake bone device of endoscope according to claim 5, it is characterised in that：It is described leveling process be
Implement on small punch press lower work platform, workpiece to be flattened is on the core rod and die holder of shaping mould, in die holder bottom
Position is provided with the equiform convex flat face of engaging lug as mould in shaping, after punch press downward punching press, that is, completes workpiece
The leveling process of engaging lug.
7. the preparation method of the snake bone device of endoscope according to claim 1, it is characterised in that：The machine-shaping
Connection bearing pin (4) is heat-treated, and to intensity up to 45~55RHC, then is polished removal surface scale.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510207482.2A CN104999221B (en) | 2015-04-28 | 2015-04-28 | The preparation method of the snake bone device of endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207482.2A CN104999221B (en) | 2015-04-28 | 2015-04-28 | The preparation method of the snake bone device of endoscope |
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| CN104999221B true CN104999221B (en) | 2017-11-21 |
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| CN107951456A (en) * | 2017-12-13 | 2018-04-24 | 谢超 | A kind of integral type insertion section of sight glass and production method |
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| CN112568858A (en) * | 2019-09-30 | 2021-03-30 | 重庆西山科技股份有限公司 | Endoscope snake bone unit, snake bone assembly and endoscope |
| CN111035350B (en) * | 2019-12-30 | 2022-06-07 | 常州延顺光电科技有限公司 | Preparation method of snake bone device of endoscope |
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| CN115251805A (en) * | 2022-07-29 | 2022-11-01 | 佗道医疗科技有限公司 | A kind of snake bone structure, endoscope and preparation method of snake bone structure |
| CN116833358A (en) * | 2023-07-13 | 2023-10-03 | 漳州草节仪器配件有限公司 | A kind of snake bone riveting equipment |
| CN117324792B (en) * | 2023-11-30 | 2024-02-13 | 杭州鑫泽源医疗科技有限公司 | Endoscope snake bone apparatus for producing |
| CN117754315B (en) * | 2024-02-22 | 2024-05-03 | 苏州聚生精密冲件有限公司 | Snake bone segment forming system, control method, snake bone segment and snake bone |
| CN117798864B (en) * | 2024-02-27 | 2024-05-03 | 杭州鑫泽源医疗科技有限公司 | Snake bone processing device |
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| CN104999221A (en) | 2015-10-28 |
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