CN110142319A - The core-pulling mechanism of minor diameter pipe bending machine - Google Patents
The core-pulling mechanism of minor diameter pipe bending machine Download PDFInfo
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- CN110142319A CN110142319A CN201910532703.1A CN201910532703A CN110142319A CN 110142319 A CN110142319 A CN 110142319A CN 201910532703 A CN201910532703 A CN 201910532703A CN 110142319 A CN110142319 A CN 110142319A
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- shaped block
- core bar
- slot
- bending machine
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000005452 bending Methods 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/04—Bending tubes using mandrels or the like the mandrel being rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/16—Auxiliary equipment, e.g. machines for filling tubes with sand
Abstract
The invention discloses a kind of core-pulling mechanisms of minor diameter pipe bending machine, its bindiny mechanism (4) includes spindle nose (6) of the setting in core pulling main shaft (3) end, the front side portion of spindle nose (6) offers T-slot (7), agreeing in T-slot (7) has T-shaped block (8), the middle part of T-shaped block (8) is equipped with core bar fixing groove (9), is equipped with core bar fixed mechanism (10) in the slot of core bar fixing groove (9)；The middle part of spindle nose (6) is equipped with the first Vertical Channel (11), the lower part of first Vertical Channel (11) is equipped with kerve (12), and first Vertical Channel (11), kerve (12) and T-slot (7) are connected；Split pin (13) are equipped in first Vertical Channel (11), the top of split pin (13) is equipped with handle (14), the bottom of split pin (13) is equipped with locking annulus (15), the annulus thickness for locking annulus (15) is inconsistent, and locks annulus (15) and be arranged in kerve.
Description
Technical field
The present invention relates to a kind of pipe bending machine, in particular to a kind of core-pulling mechanism of minor diameter pipe bending machine.
Background technique
One kind that fully-automatic bent-pipe technique is traditional bent tube technique combination machine tool industry and Numeric Control Technology and grows up is new
Technique, Full-automatic tube bending machine are a kind of based on vector bending tube principle, realize complex space by numerical control system by program
The advanced bending machining equipment of three-dimensional pipe fitting, executing agency mainly include clamping bending mechanism and tubing feeding rotating mechanism.
With the rapid development of microcomputer technology, present Full-automatic tube bending machine is generally used microcomputer control, therefore also referred to as CNC
The bending machine of (Computer Numerical Control) series.Full-automatic tube bending machine can be accurate, efficient, low due to having
Consumption ground manufactures the advantages such as lightweight, Strengthening and Toughening bent pipe parts and is able to be widely applied in Aeronautics and Astronautics and automotive field.
In recent years, with the increasingly raising of product bending required precision, the requirement of brake forming is gradually increased, to Full-automatic tube bending machine
Correlative study has become the focus in industry.
Summary of the invention
The object of the present invention is to provide a kind of core-pulling mechanisms of minor diameter pipe bending machine.The present invention not only increases pumping
The fastness that core main shaft is connected with core bar, and bindiny mechanism easily replaces and dismantles, and improves the flexibility used and work effect
Rate.In addition, the present invention also have the characteristics that it is reliable for operation, stable.
Technical solution of the present invention: a kind of core-pulling mechanism of minor diameter pipe bending machine, including hydraulic cylinder, the axis body of hydraulic cylinder
Inside is equipped with core pulling main shaft, and the end of core pulling main shaft is equipped with bindiny mechanism, and bindiny mechanism is fixed with core bar；The bindiny mechanism
Spindle nose including core pulling spindle nose is arranged in, the front side portion of spindle nose offer T-slot, and agreeing in T-slot has T-shaped block, T-shaped block
Middle part be equipped with core bar fixing groove, be equipped with core bar fixed mechanism in the slot of core bar fixing groove；It is vertical that the middle part of spindle nose is equipped with first
The lower part in channel, the first Vertical Channel is equipped with kerve, and the first Vertical Channel, kerve and the T-slot are connected；Described
Split pin is equipped in one Vertical Channel, the top of split pin is equipped with handle, and the bottom of split pin is equipped with locking annulus, locks annulus
Annulus thickness it is inconsistent, and lock annulus be arranged in kerve.
In the core-pulling mechanism of above-mentioned minor diameter pipe bending machine, the hydraulic cylinder includes cylinder body, and the front end of cylinder body is equipped with
Drive end bearing bracket, the rear end of cylinder body are equipped with rear end cap, and cylinder interior forms plunger shaft, the axis body through plunger shaft, axis are equipped in cylinder body
Body surface face is equipped with the first sealing ring, the second sealing ring group and third sealing ring group, first sealing ring and plunger shaft cavity wall
It is in contact, the second sealing ring group is in contact with the inner wall of drive end bearing bracket；Third sealing ring group is in contact with the inner wall of rear end cap；Axis body
Front be equipped with the first limited block, the rear portion of axis body is equipped with the second limited block, and the core pulling main shaft is fixed on the inside of axis body.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the bottom of T-slot is equipped with support plate on the spindle nose.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the core bar fixed mechanism includes being provided in T-shaped block
First threaded hole in portion, the first threaded hole are connected with core bar fixing groove；The first threaded hole screw-internal thread fit has locking
Column.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the core bar fixed mechanism includes being provided in T-shaped block
The bracket groove in portion, the top of T-shaped block are equipped with the second Vertical Channel, and the side of T-shaped block is equipped with the second threaded hole, before the bracket groove
Portion is connected with the second threaded hole, and the rear portion of bracket groove is connected with the second Vertical Channel；Agree in bracket groove the end of the core bar
In, bottom outlet is offered on the bottom surface of the end of core bar, is equipped with lock-screw in second threaded hole, lock-screw is through second
It is extended through after threaded hole and bottom outlet in the T-shaped block other side, is equipped with nut in the end of lock-screw.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the lower part of the T-shaped block is equipped with fixation and gets stuck, fixing card
Shell side is equipped with dististyle, and the stomidium mutually agreed with core bar end is offered on dististyle, and the top of dististyle is equipped with end button；Described consolidates
Surely the other side is got stuck equipped with inner sheet, and inner sheet top is equipped with internal buckle, and internal buckle runs through the second Vertical Channel from bottom to top and tips upside down on T shape
Block upper surface；The fixed bottom surface got stuck is equipped with bracket, and the lower part of lock-screw is mutually agreed with bracket.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the shaft of the lock-screw is equipped with resilient sleeve, elasticity
Set includes the base portion for being set in the shaft top of screw and the pressure-bearing portion that is set in the middle part of the shaft of screw, base portion and pressure-bearing portion it
Between there is limited step, the outside in pressure-bearing portion is equipped with pressure-bearing slope.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the top of the cylinder body is equipped with the first support frame, and first
It is equipped with the first sliding rail on support frame, the both ends of support frame are equipped with support plate, are equipped with 2 centres on the first sliding rail and in support plate
Limited block；The axis body is equipped with axis body limited block, and end and the axis body limited block of the first sliding rail are mutually fixed.
In the core-pulling mechanism of minor diameter pipe bending machine above-mentioned, the side of the cylinder body offers limit hole, limit hole
In be equipped with the second sliding rail；The main shaft is equipped with axis sliding york, and the top of axis sliding york is equipped with sliding york slot, and the second sliding rail is embedded
In sliding york slot.
Compared with prior art, the invention has the following advantages:
1, spindle nose is arranged in the end of core pulling main shaft in the present invention, is provided with T-slot on spindle nose, agreeing in T-slot has T shape
Block, while the first Vertical Channel and kerve are also provided on spindle nose, is provided with split pin in the first Vertical Channel, in kerve and
The bottom of split pin is equipped with locking annulus, and the annulus thickness for locking annulus is inconsistent.Handle locks annulus in initial position
The annulus thickness of external (referring to close to T-shaped block side) is thin, and the annulus thickness of internal (referring to close to core pulling main shaft side) is thicker, at this time
Annulus to be locked not act on T-shaped block generation, T-shaped block can freely be taken out, fill in, when needing fixed T-shaped block, rotational handle,
So that the thicker side of annulus thickness for locking annulus is turned to outside, locks annulus outwardly against T-shaped block, keep T-shaped block tight with T-slot
It is close to withstand, realize that T-shaped block is fixed on spindle nose.Make the present invention more convenient in the suitable T-shaped block of replacement using the above structure, and
The fixation of T-shaped block in a state of use is also more secured.T-shaped block is connection core pulling main shaft and core bar as core bar connector
It connects intermediate and (is equipped with core bar fixing groove in T-shaped block, core bar fixing groove is for fixing core bar, therefore core pulling main shaft passes through T-shaped block
It is connect with core bar and fixed), therefore, structure of the invention can make the connection of core bar and core pulling main shaft more secured and steady
Fixed, replacement, the installation and removal of core bar and core pulling main shaft are also more convenient, improve the flexibility that product uses.
2, it further, is equipped with bracket groove in the middle part of the T-shaped block, the end of core bar is mutually agreed with bracket groove, and T-shaped block is equipped with
Second threaded hole, the end base of core bar offer bottom outlet, and lock-screw passes through the second threaded hole and bottom outlet is mutually fixed with nut,
To mutually fix T-shaped block with core bar, on the one hand which improves the convenience of installation and removal, on the other hand also improves
The firmness of connection.In addition, being equipped with resilient sleeve in the outside of lock-screw, it is equipped in the middle part of resilient sleeve shaft with pressure-bearing slope
Pressure-bearing portion, when lock-screw inwardly turns, resilient sleeve can be further improved the fixation degree of lock-screw and core bar, prevent
Only core bar is because loosening and shifting the quality so as to cause bend pipe caused by being not fixed firmly.Further, in the lower part of T-shaped block
It gets stuck equipped with fixation, on the one hand the fixed structure design to get stuck can connect lock-screw, T-shaped block, nut and core bar whole
It is combined, on the other hand also improves the stability of connection.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is sectional view of the invention；
Fig. 3 is the spindle nose of core pulling main shaft and the structural schematic diagram that T-shaped block connects；
Fig. 4 is the connection schematic diagram of T-shaped block and core bar；
Fig. 5 is the connection schematic cross-section of T-shaped block and core bar；
Fig. 6 is the structural schematic diagram of T-slot and T-shaped block cooperation；
Fig. 7 is the structural schematic diagram of the first sliding rail and the second sliding rail.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment: a kind of core-pulling mechanism of minor diameter pipe bending machine, as shown in Figure 1 and Figure 2, including hydraulic cylinder 1, liquid
Core pulling main shaft 3 is equipped with inside the axis body 2 of cylinder pressure 1, the end of core pulling main shaft 3 is equipped with bindiny mechanism 4, and bindiny mechanism 4 is fixed with core
Bar 5；The hydraulic cylinder 1 includes cylinder body 16, and the front end of cylinder body 16 is equipped with drive end bearing bracket 17, and the rear end of cylinder body 16 is equipped with rear end cap
18, drive end bearing bracket and rear end cap are fixed by screws in cylinder body two sides, and sealing can be arranged in drive end bearing bracket and rear end cap at connecting flange
Circle guarantees the closed of cylinder body, forms plunger shaft 19 inside cylinder body 16, the axis body 2 through plunger shaft 19 is equipped in cylinder body 16.It is described
2 surface of axis body be equipped with the first sealing ring 21, the second sealing ring group 22 and third sealing ring group 23, first sealing ring 21
It is in contact with 19 cavity wall of plunger shaft, the second sealing ring group 22 is in contact with the inner wall of drive end bearing bracket 17；Third sealing ring group 23 is with after
The inner wall of end cap 18 is in contact, and the setting of above-mentioned sealing ring is the airtight performance for guaranteeing axis body cylinder interior in moving process,
So above-mentioned technical proposal is hydraulic and air pressure field conventional technique scheme, therefore details are not described herein.The front of axis body 2
Equipped with the first limited block 24, the rear portion of axis body 2 is equipped with the second limited block 25, and the core pulling main shaft 3 is fixed on the interior of axis body 2
Portion can be interference fitted as shown in Fig. 2 and fix or be threadedly engaged fixation.As shown in Fig. 7, the cylinder body 16 is upper
Portion is equipped with the first support frame 30, and the first sliding rail 31 is equipped on the first support frame 30, and the both ends of support frame 30 are equipped with support plate 32,
2 middle limit blocks 33 are equipped on first sliding rail 31 and in support plate 32；The axis body 2 is equipped with axis body limited block 34, the
The end of one sliding rail 31 is fixed with 34 phase of axis body limited block, the limit of axis body limited block 34 and the second limited block 25 as axis body both ends
Position component prevents axis body telescopic moving excessive.The side of the cylinder body 16 offers limit hole 40, is equipped in limit hole 40
Second sliding rail 41；The core pulling main shaft 3 is equipped with axis sliding york 42, and the top of axis sliding york 42 is equipped with sliding york slot 43, the second sliding rail
41 are embedded in sliding york slot 43, and axis sliding york is U-shaped, and bottom is fixed by screws on core pulling main shaft, tightens screw, make axis sliding york
It not can rotate, sliding york slot issued on the outside of axis sliding york, the second sliding rail passes through sliding york slot.First sliding rail and the second sliding rail
It is arranged and is on the one hand to provide the flexible limit of axis body and core pulling main shaft, is on the other hand improve axis body and core pulling main axle moving steady
It is qualitative, play the role of Auxiliary support.As reflected in figures 3 and 6, the bindiny mechanism 4 includes being arranged in 3 end of core pulling main shaft
Spindle nose 6, the front side portion of spindle nose 6 offers T-slot 7, and agreeing in T-slot 7 has T-shaped block 8, and the middle part of T-shaped block 8 is solid equipped with core bar
Determine slot 9, core bar fixing groove is cylinder channel-shaped, for being inserted into rod core bar, is equipped with core bar fixed mechanism in the slot of core bar fixing groove 9
10；The middle part of spindle nose 6 is equipped with the first Vertical Channel 11, and the lower part of the first Vertical Channel 11 is equipped with kerve 12, the first Vertical Channel
It is cylinder groove straight down, kerve is the pie slot that the first Vertical Channel bottom is arranged in, first Vertical Channel 11,
Kerve 12 and T-slot 7 are connected；Equipped with split pin 13, split pin bottom and through spindle nose in first Vertical Channel 11
Equipped with setting-up piece, to prevent split pin from moving and being detached from out of first Vertical Channel.The top of split pin 13 is equipped with handle 14,
The bottom of split pin 13 is equipped with locking annulus 15, and the annulus thickness for locking annulus 15 is inconsistent, and locks annulus 15 and be arranged the bottom of at
In slot；It includes being provided with 8 top of T-shaped block that the bottom of T-slot 7, which is equipped with core bar fixed mechanism 10 described in support plate 26, on spindle nose 6
The first threaded hole 51, the first threaded hole 51 is connected with core bar fixing groove 9；First threaded hole, 51 screw-internal thread fit has
Locking post 27.Handle is in initial position, at this point, the annulus thickness of the outside (referring to close to T-shaped block side) of locking annulus is thin, it is interior
The annulus thickness in portion (refer to close to core pulling main shaft side) is thicker, locks annulus at this time and does not act on T-shaped block generation, and T-shaped block can be with
It freely takes out, fill in, when needing fixed T-shaped block, rotational handle turns to the thicker side of annulus thickness for locking annulus outer
Portion locks annulus outwardly against T-shaped block, withstands T-shaped block closely with T-slot, realizes that T-shaped block is fixed on spindle nose.Using upper
Stating structure makes the present invention to replace suitable T-shaped block more convenient, and the fixation of T-shaped block in a state of use is also more secured.T
Shape block is to connect the connection intermediate of core pulling main shaft and core bar (equipped with core bar fixing groove, core in T-shaped block as core bar connector
Bar fixing groove is for fixing core bar, therefore core pulling main shaft is connect and fixed with core bar by T-shaped block), therefore, structure of the invention
The connection of core bar and core pulling main shaft can be made more secured and stablized, replacement, the installation and removal of core bar and core pulling main shaft
It is more convenient, improve the flexibility that product uses.
Embodiment 2: as another embodiment, as shown in figs. 4 and 5, the core bar fixed mechanism 10 includes opening
Be located at the bracket groove 101 at the middle part of T-shaped block 8, bracket groove is the slot that top is arc-shaped, two sides are vertical plane, just with the end of core bar
It matches.The top of T-shaped block 8 is equipped with the second Vertical Channel 102, and the first Vertical Channel can be perforation T-shaped block straight down
Rectangular channel.The side of T-shaped block 8 is equipped with the second threaded hole 103, and the front of the bracket groove 101 is connected with the second threaded hole 103
Logical, the rear portion of bracket groove 101 is connected with the second Vertical Channel 102；The end of the core bar 5 is agreed in bracket groove 101, core bar 5
End bottom surface on offer bottom outlet 104, lock-screw 105, lock-screw 105 are equipped in second threaded hole 103
It is extended through after the second threaded hole 103 and bottom outlet 104 in 8 other side of T-shaped block, is equipped with nut in the end of lock-screw 105
106.The lower part of the T-shaped block 8 be equipped with it is fixed get stuck 107, fixed get stuck can be sheet metal and suppress to obtain, and be also possible to mould
Material is equipped with dististyle 108, is offered and 5 end phase contract of core bar on dististyle 108 by mold one-step building, fixed 107 sides of getting stuck
The stomidium 109 of conjunction, the top of dististyle 108 are equipped with end button 110；The fixation gets stuck 107 other sides equipped with inner sheet 111, inner sheet
111 tops are equipped with internal buckle 112, and internal buckle 112 through the second Vertical Channel 102 and tips upside down on 8 upper surface of T-shaped block from bottom to top；Gu
Surely get stuck 107 bottom surface is equipped with bracket 113, and lower part and 113 phase of bracket of lock-screw 105 agree with.Further, the lock
The shaft of tight screw 105 is equipped with resilient sleeve 114, and resilient sleeve 114 includes the base portion for being set in the shaft top of lock-screw 105
115 and the pressure-bearing portion 116 that is set in the middle part of the shaft of lock-screw, there is limited step between base portion 115 and pressure-bearing portion 116
117, the outside in pressure-bearing portion 116 is equipped with pressure-bearing slope 118.When connecting core bar, the end of core bar is inserted into bracket groove, lock-screw
It is mutually fixed across the second threaded hole and bottom outlet with nut, so that T-shaped block mutually be fixed with core bar, on the one hand which improves peace
On the other hand the convenience of assembly and disassembly also improves the firmness of connection.In addition, being equipped with elasticity in the outside of lock-screw
Set, resilient sleeve shaft middle part are equipped with the pressure-bearing portion with pressure-bearing slope, and when lock-screw inwardly turns, resilient sleeve can be further
Improve lock-screw and core bar fixation degree, prevent core bar because caused by being not fixed firmly loosen and displacement so as to cause
The quality of bend pipe.Further, fixation being equipped in the lower part of T-shaped block and is got stuck, the fixed structure design to get stuck on the one hand can be with
The connection of lock-screw, T-shaped block, nut and core bar is combined, the stability of connection is on the other hand also improved.
Claims (9)
1. the core-pulling mechanism of minor diameter pipe bending machine, including hydraulic cylinder (1), the axis body (2) of hydraulic cylinder (1) is internal to be equipped with core pulling master
The end of axis (3), core pulling main shaft (3) is equipped with bindiny mechanism (4), and bindiny mechanism (4) is fixed with core bar (5)；It is characterized by: institute
The bindiny mechanism (4) stated includes spindle nose (6) of the setting in core pulling main shaft (3) end, and the front side portion of spindle nose (6) offers T-slot
(7), agreeing in T-slot (7) has T-shaped block (8), and the middle part of T-shaped block (8) is equipped with core bar fixing groove (9), core bar fixing groove (9)
Core bar fixed mechanism (10) are equipped in slot；The middle part of spindle nose (6) is equipped with the first Vertical Channel (11), the first Vertical Channel (11)
Lower part is equipped with kerve (12), and first Vertical Channel (11), kerve (12) and T-slot (7) are connected；Described first is perpendicular
Split pin (13) are equipped in straight channel (11), the top of split pin (13) is equipped with handle (14), and the bottom of split pin (13) is equipped with
It locks annulus (15), the annulus thickness for locking annulus (15) is inconsistent, and locks annulus (15) and be arranged in kerve.
2. the core-pulling mechanism of minor diameter pipe bending machine according to claim 1, it is characterised in that: the hydraulic cylinder (1)
Including cylinder body (16), the front end of cylinder body (16) is equipped with drive end bearing bracket (17), and the rear end of cylinder body (16) is equipped with rear end cap (18), cylinder body
(16) internal to form plunger shaft (19), the axis body (2) through plunger shaft (19) is equipped in cylinder body (16), axis body (2) surface is equipped with
First sealing ring (21), the second sealing ring group (22) and third sealing ring group (23), first sealing ring (21) and piston
Chamber (19) cavity wall is in contact, and the second sealing ring group (22) is in contact with the inner wall of drive end bearing bracket (17)；Third sealing ring group (23) with
The inner wall of rear end cap (18) is in contact；The front of axis body (2) is equipped with the first limited block (24), and the rear portion of axis body (2) is equipped with second
Limited block (25), the core pulling main shaft (3) are fixed on the inside of axis body (2).
3. the core-pulling mechanism of minor diameter pipe bending machine according to claim 1, it is characterised in that: T on the spindle nose (6)
The bottom of shape slot (7) is equipped with support plate (26).
4. the core-pulling mechanism of minor diameter pipe bending machine according to claim 1, it is characterised in that: the fixed machine of the core bar
Structure (10) includes the first threaded hole (51) for being provided with T-shaped block (8) top, the first threaded hole (51) and core bar fixing groove (9) phase
Connection；Described the first threaded hole (51) screw-internal thread fit has locking post (27).
5. the core-pulling mechanism of minor diameter pipe bending machine according to claim 1, it is characterised in that: the fixed machine of the core bar
Structure (10) includes the bracket groove (101) being provided in the middle part of T-shaped block (8), and the top of T-shaped block (8) is equipped with the second Vertical Channel (102), T
The side of shape block (8) is equipped with the second threaded hole (103), and front and the second threaded hole (103) of the bracket groove (101) are connected
Logical, rear portion and the second Vertical Channel (102) of bracket groove (101) are connected；Agree in bracket groove (101) end of the core bar (5)
In, it is offered on the bottom surface of the end of core bar (5) bottom outlet (104), lock-screw is equipped in second threaded hole (103)
(105), lock-screw (105) extends through after the second threaded hole (103) and bottom outlet (104) in T-shaped block (8) other side,
The end of lock-screw (105) is equipped with nut (106).
6. the core-pulling mechanism of minor diameter pipe bending machine according to claim 5, it is characterised in that: the T-shaped block (8)
Lower part is equipped with fixation and gets stuck (107), and fixed (107) side of getting stuck is offered and core bar on dististyle (108) equipped with dististyle (108)
(5) top of the stomidium (109) that end is mutually agreed with, dististyle (108) is equipped with end button (110)；The fixation get stuck (107) it is another
Side is equipped with inner sheet (111), is equipped with internal buckle (112) above inner sheet (111), and internal buckle (112) runs through the second Vertical Channel from bottom to top
(102) and T-shaped block (8) upper surface is tipped upside down on；The fixed bottom surface for getting stuck (107) is equipped with bracket (113), lock-screw (105)
Mutually agree with bracket (113) lower part.
7. the core-pulling mechanism of minor diameter pipe bending machine according to claim 6, it is characterised in that: the lock-screw
(105) shaft is equipped with resilient sleeve (114), and resilient sleeve (114) includes the base portion for being set in the shaft top of lock-screw (105)
(115) and the pressure-bearing portion (116) that is set in the middle part of the shaft of lock-screw, there is limit between base portion (115) and pressure-bearing portion (116)
The outside of position step (117), pressure-bearing portion (116) is equipped with pressure-bearing slope (118).
8. the core-pulling mechanism of minor diameter pipe bending machine according to claim 2, it is characterised in that: the cylinder body (16)
Top is equipped with the first support frame (30), is equipped with the first sliding rail (31) on the first support frame (30), the both ends of support frame (30) are set
Have support plate (32), 2 middle limit blocks (33) are equipped on the first sliding rail (31) and in support plate (32)；The axis body (20)
It is equipped with axis body limited block (34), end and the axis body limited block (34) of the first sliding rail (31) are mutually fixed.
9. the core-pulling mechanism of minor diameter pipe bending machine according to claim 2, it is characterised in that: the cylinder body (16)
Side offers limit hole (40), and the second sliding rail (41) are equipped in limit hole (40)；The core pulling main shaft (3) is equipped with axis
The top of sliding york (42), axis sliding york (42) is equipped with sliding york slot (43), and the second sliding rail (41) is embedded in sliding york slot (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532703.1A CN110142319A (en) | 2019-06-19 | 2019-06-19 | The core-pulling mechanism of minor diameter pipe bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107202157A (en) * | 2017-07-04 | 2017-09-26 | 杭州和良机电设备有限公司 | A kind of bending machine and its gear drive |
| CN210231130U (en) * | 2019-06-19 | 2020-04-03 | 浙江大学城市学院 | Core pulling mechanism of small-diameter pipe bending machine tool |
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| US5632176A (en) * | 1995-10-06 | 1997-05-27 | Pines Manufacturing | Programmable pressure controlled mandrel extractor for tube bending machine |
| CN101259495A (en) * | 2008-04-22 | 2008-09-10 | 林伟明 | Core rod device for tube bender |
| CN101590607A (en) * | 2009-04-21 | 2009-12-02 | 寿震森 | Lateral surface compressing unit of eccentric shaft |
| CN201470734U (en) * | 2009-08-11 | 2010-05-19 | 和和机械股份有限公司 | Quick disassembling through core device of tube bending machine |
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| CN210231130U (en) * | 2019-06-19 | 2020-04-03 | 浙江大学城市学院 | Core pulling mechanism of small-diameter pipe bending machine tool |
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