CN208991547U - A kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine - Google Patents
A kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine Download PDFInfo
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- CN208991547U CN208991547U CN201821730876.1U CN201821730876U CN208991547U CN 208991547 U CN208991547 U CN 208991547U CN 201821730876 U CN201821730876 U CN 201821730876U CN 208991547 U CN208991547 U CN 208991547U
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Abstract
The utility model relates to the hydraulic fluid flow rates and pressure control mechanism of a kind of pipe fitting channelling machine.Mechanism is made of oil cylinder and hydraulic package；In the cylinder body of oil cylinder by piston be divided into volume can corresponding change the first and second chamber；Hydraulic package includes oil pump, high pressure filter, the first hydralic pressure gauge, proportional pressure-reducing valve, proportional flow control valve, the second hydralic pressure gauge, manual overflow valve and the solenoid valve controlled by PLC connection, the input terminal of oil pump connection high pressure filter, the output end of high pressure filter connects the input terminal of manual overflow valve, the output end of manual overflow valve connects the input terminal of proportional pressure-reducing valve, and the first hydralic pressure gauge is arranged on the pipeline between manual overflow valve and proportional pressure-reducing valve；The proportional pressure-reducing valve connects the input terminal of proportional flow control valve, and the output end of proportional flow control valve is further connected respectively to the of oil cylinder, two chambers by being provided with the pipeline of solenoid valve, and solenoid valve connects and is provided with the second hydralic pressure gauge on the pipeline of the second chamber.The utility model accurately controls hydraulic fluid flow rate and pressure, and flow is not influenced by payload size, and feeding is stablized, and improves slot rolling product quality.
Description
Technical field
The utility model relates to the device of processing groove on tubular metal product, especially a kind of hydraulic oil of pipe fitting channelling machine
Control of flow and pressure mechanism.
Background technique
Currently, in pipeline (such as: steel pipe) process of deployment, when needing to change pipe path commonly using the pipe such as three-way elbow
Part, these pipe fittings are needed through clamp connection, and clamp connection needs the slot rolling on pipe fitting end.Although slot rolling is current on straight tube
The problem of technology is more mature, but the slot rolling on the pipe fittings such as three-way elbow, and the prior art is still not perfect, typically encounters as shown in Figure 1:
The problems such as distance A variation for having the groove of width B to pipe fitting end is big, and the end of pipe fitting is easy scratch when processing.With
And existing pipe fitting slot rolling process equipment, in slot rolling on pipe fitting, the hydraulic fluid flow rate and pressure of pinch roller power part are difficult to control.
Utility model content
The purpose of this utility model is to provide the hydraulic fluid flow rates and pressure control mechanism of a kind of pipe fitting channelling machine, mainly
Existing pipe fitting slot rolling process equipment and technique are solved in slot rolling on the pipe fittings such as three-way elbow, hydraulic fluid flow rate and pressure are difficult to control
The technical problems such as system；Hydraulic fluid flow rate and pressure can be accurately controlled by the utility model, flow is not influenced by payload size,
Feeding is stablized, and slot rolling product quality is improved, and the slot rolling particularly suitable for the special pieces such as elbow end is processed.
To achieve the goals above, the technical scheme adopted by the utility model is
A kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine, the pipe fitting channelling machine include slot rolling processing assembly
With pinch roller power part；It is characterized by: the pinch roller power part is oil cylinder；The hydraulic oil stream being made of oil cylinder and hydraulic package
Amount and pressure control mechanism；In the cylinder body of the oil cylinder by piston be divided into volume can corresponding change the first chamber and the second chamber；It should
Hydraulic package include by PLC connection control oil pump, high pressure filter, the first hydralic pressure gauge, proportional pressure-reducing valve, proportional flow control valve,
Second hydralic pressure gauge, manual overflow valve and solenoid valve, the oil pump pass through the input terminal of piping connection high pressure filter, the high-pressure filteration
The output end of device passes through the input terminal of the manual overflow valve of piping connection, and the output end of the manual overflow valve passes through piping connection ratio
The first hydralic pressure gauge is arranged on the pipeline between the manual overflow valve and proportional pressure-reducing valve in the input terminal of pressure reducing valve；Ratio decompression
Valve passes through the input terminal of piping connection proportional flow control valve, and the output end of the proportional flow control valve is further by being provided with solenoid valve
Pipeline is connected respectively to the first chamber and the second chamber of oil cylinder, and it is hydraulic there are also second that solenoid valve connects setting on the pipeline of the second chamber
Table.
The hydraulic fluid flow rate and pressure control mechanism of the pipe fitting channelling machine, it is characterised in that: the slot rolling processing assembly
Including main shaft, motor, knurled wheel, wheel pressing shaft, pinch roller frame, pinch roller, the power output end of the lower end connection motor of the main shaft, the master
Knurled wheel is arranged in the upper end of axis；Pinch roller is then arranged in side positioned at knurled wheel, which is connected to a pinch roller frame by wheel pressing shaft
On, which is driven by oil cylinder.
The hydraulic fluid flow rate and pressure control mechanism of the pipe fitting channelling machine, it is characterised in that: the pipe fitting channelling machine packet
Including rack, the rack have operating platform and are located at operating platform supported underneath portion, have between the support portion below operating platform
There is accommodation space；The oil cylinder is arranged on the operational platform；The hydraulic package is arranged in accommodation space.
The hydraulic fluid flow rate and pressure control mechanism of the pipe fitting channelling machine, it is characterised in that: the oil cylinder includes cylinder body,
The cylinder body upper and lower ends pass through upper end cover respectively and pedestal is closed, a piston be arranged in cylinder body by cylinder interior separate for
Epicoele and cavity of resorption, the piston rod of the piston are pierced by pedestal connection pinch roller frame；The upper end cover has the upper end cover for connecting upper hydraulic tube
Access, upper hydraulic tube intracavitary are connected to by upper end cover access with upper；The pedestal has the pedestal access for connecting lower hydraulic tube, lower liquid
Pressure pipe is connected to by pedestal access with cavity of resorption.
After adopting the above structure, the utility model is compared to the prior art advantageously:
1, the oil cylinder hydraulic of the utility model, which is controlled, accurately controls hydraulic fluid flow rate and pressure using proportioning valve, and flow is not
It is influenced by payload size, feeding is stablized, and slot rolling product quality is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pipe fitting end slot rolling.
Fig. 2 is the positive structure schematic of the utility model pipe fitting channelling machine.
Fig. 3 is the working principle diagram of slot rolling processing assembly in the utility model pipe fitting channelling machine.
Fig. 4 is the structural schematic diagram of slot rolling processing assembly in the utility model pipe fitting channelling machine.
Fig. 5 is fitting structure schematic diagram after the utility model slot rolling processing technology point press operation.
Fig. 6 is the structural schematic diagram of the utility model pipe fitting channelling machine middle friction tray.
Fig. 7 is the structural representation of the utility model utility model pipe fitting channelling machine middle friction tray cooperation slot rolling processing assembly
Figure.
Fig. 8 is the positive structure schematic of touch screen rotation jack in the utility model pipe fitting channelling machine.
Fig. 9 is the right side view of Fig. 8.
Figure 10 is structural schematic diagram (i.e. Fig. 4 of the groove processing depth control apparatus of the utility model pipe fitting channelling machine
Top view).
Figure 11 is the hydraulic fluid flow rate of the utility model pipe fitting channelling machine and the structure principle chart of pressure control mechanism.
Figure 12 is the structural schematic diagram of the oil cylinder of the utility model pipe fitting channelling machine.
Specific embodiment
The utility model discloses a kind of pipe fitting channelling machines.Referring to Fig. 2, it be the utility model pipe fitting channelling machine one compared with
The positive structure schematic of good embodiment.It is as shown in the figure: it include slot rolling processing assembly 1, hydraulic package 2, rack 3, oil cylinder 4,
Touch panel unit 5 and frictional disk 6.The rack 3 has operating platform and is located at operating platform supported underneath portion, below operating platform
Support portion between have accommodation space.Wherein, which is mainly disposed on operating platform；The touch panel unit 5 makes
Used time is arranged on the operational platform, can be received into accommodation space after use；The oil cylinder 4 can be set on the operational platform；
The hydraulic package 4 is mainly disposed in accommodation space；The slot rolling processing assembly 1 slot rolling processing part (such as: pinch roller, wheel pressing shaft,
Pinch roller support, pinch roller bearing, knurled wheel, baffle) it is mainly disposed on operating platform, power section is (such as: motor, main shaft, main shaft
Bearing) it is mainly disposed in accommodation space.Therefore, the functional unit layout comparison of the utility model is reasonable, some components (such as:
Touch panel unit) in the case where not using, it is easy to store and protect, electric component is then mainly disposed in accommodation space, should
Accommodation space can be a kind of preferable protection to electric component using closing or semi-closed structure.
The each functional unit of the utility model and its innovative technology are introduced in conjunction with attached drawing further below.
Fig. 3,4 are please referred to, it is the structural schematic diagram of slot rolling processing assembly 1 in the utility model pipe fitting channelling machine.Such as figure
Shown: it is by main shaft 11, motor 12, main shaft bearing 13, baffle 14, knurled wheel 15, wheel pressing shaft 16, pinch roller bearing 17, pinch roller frame
18, pinch roller 19 is constituted, and can realize the function for processing pipe fitting end slot rolling further combined with oil cylinder 4.Wherein: the main shaft
11 are usually vertically arranged, and the power output end of the lower end connection motor 12 of main shaft 11 simultaneously can be dynamic by the output rotation of motor 12
Power；The upper end of the main shaft 11 is fixedly connected with baffle 14, and the effect of the baffle 14 is mainly the end pipe fitting W of support slot rolling to be processed
Portion；Knurled wheel 15 is further set on the baffle 14, when main shaft 11 is by the driving rotation of motor 12, the baffle 14 and knurled wheel
15 also synchronous rotaries.In addition, being provided with axle sleeve outside the main shaft 11, main shaft bearing 13 is provided between main shaft 11 and axle sleeve to ensure to lead
11 smooth rotation of axis simultaneously reduces noise.In specific arrangement, the motor 12, main shaft bearing 13, axle sleeve and main shaft 1 are arranged at machine
In accommodation space below the operating platform of frame 3, and side on the operational platform is then arranged in baffle 14 and knurled wheel 15.The operation is flat
Pinch roller 19 is then arranged in the side positioned at baffle 14 and knurled wheel 15 above platform, which is connected to pressure by pinch roller bearing 17
On wheel shaft 16, which is further connected on a pinch roller frame 18, which is driven by the oil cylinder 4 that it is connected
It is dynamic, so that pinch roller 19 is close to or far from knurled wheel 15.
As another embodiment of the utility model, which can also be using other pinch roller power parts (such as: gas
Cylinder) it replaces.
As another embodiment of the utility model, which can also be held using what is be wholely set on knurled wheel 15
Holder structure substitutes, i.e., this knurled wheel itself has the supporting part of workpiece pipe end.
The utility model mainly passes through above structure, and a kind of slot rolling processing technology of pipe fitting end, the slot rolling can be realized
Processing technology is referred to as to press technique, and concrete operation step is: pipe fitting W is placed on the knurled wheel 15 of 11 upper end of main shaft, at this point,
The end of pipe fitting W is supported on baffle 14；It is as shown in Figure 5: in the case where main shaft 11 does not turn, pinch roller frame being driven by oil cylinder 4
18 and pinch roller 19 close to knurled wheel 15, and make pinch roller 19 in pipe fitting W surface D-shaped separated by a distance at certain depth H and width B
Groove；Then the pipe fitting W by pressing processing is carried out slot rolling in the machine, to obtain groove to pipe fitting end distance A
The lesser pipe fitting of variation.Original processing technology is overcome simultaneously is easy the problem of running pipe (that is: pipe fitting is detached from knurled wheel).
It presses the concrete operations mode of rear slot rolling and mainly or by oil cylinder 4 controls pinch roller 19 close to knurled wheel 15, at this time
Motor 12 also starts and main shaft 11 is driven to rotate, in point after knurled wheel 15 and the common end for clamping pipe fitting 4 of close pinch roller 19
Grooved position after pressure positioning carries out slot rolling processing again, to obtain groove to the lesser pipe fitting of pipe fitting end distance A variation.
By above structure and processing technology, especially suitable for processing groove near the end of special piece, together
When can also effectively control groove to pipe fitting end distance variation, improve processing quality.But in actual processing process
In, find when processing large-caliber pipe fittings, by pipe fitting end can not all by 14 supports of the baffle of live spindle 11,
It is not tended to collide with machinery panel by the end of the pipe fitting of support, end face is caused to abrade.
In order to solve the problems, such as that end abrades, the tube end that the utility model further provides a kind of pipe fitting channelling machine is anti-
Device is abraded, i.e. shown frictional disk 6 in Fig. 1.Its effect is, the one of the 14 support pipe fitting W of baffle of slot rolling processing assembly 1
In the case where portions end, by another part end of the further support pipe fitting W of frictional disk 6, so that the end of pipe fitting W exists
Within protection scope, the end of pipe fitting W is prevented to be scratched, while ensuring that the end of pipe fitting W is in horizontality in processing, had
Conducive to the quality for promoting slot rolling processing.
Fig. 6 is further regarded to incorporated by reference to Fig. 1, which includes rotationally supporting disk 61, bearing block 62, frictional disk installation
Axis 63, bearing block fixing piece 65, rotationally supports disk fixing piece 66, pouring orifice 67 at frictional disk bearing 64.Wherein: this is rotationally supported
The upper end that disk 61 is fixed on frictional disk installation axle 63 by rotationally supporting disk fixing piece 66, the frictional disk installation axle 63 are threaded through axis
It holds in seat 62 and setting frictional disk bearing 64 between；The bearing block 62 is consolidated frictional disk 6 by bearing block fixing piece 65
It is scheduled on the operating platform of rack 3.After installation, which is slightly above the upper surface of operating platform.It uses
When, as shown in Figure 7: when processing large-caliber pipe fittings, by the common support of baffle 14 for rotationally supporting disk 61 and slot rolling processing assembly 1
With protection pipe fitting W, and ensure that the end pipe fitting W can sentence horizontal Working position.In addition, being located at frictional disk axis on bearing block 62
It holds and is provided with pouring orifice 67 at 64 position, can according to need to 64 oiling of frictional disk bearing to ensure frictional disk installation axle 63
Smooth rotate smoothly.Since the upper surface for rotationally supporting disk is slightly above the upper surface of operating platform, operating platform is not
Easily damaged by pipe fitting end.
In the utility model pipe fitting channelling machine, the parameter setting of slot rolling processing and the control centre master of entire electric component
Touch screen is set, that is to say, that touch screen is exactly the electric control box (comprising PLC) of the utility model.As shown in Figure 1,
The touch panel unit 5 is arranged on the operational platform when in use.In view of the protection to electric control box and reduce operating platform
On occupied space, preferably touch panel unit 5 is received into accommodation space after use.For this purpose, the utility model is further set
A kind of pipe fitting channelling machine touch screen rotation jack is counted.As shown in Figure 8,9: it includes the electric control box with touch screen
51, cantilever 52, rotary connector 53, shaft 54, fixed plate 55, shaft shelves part 56, fixed plate connector 57.Wherein: the cantilever
52 can be connected by multiple pipe fittings with rebate members after formed, electric control box 51 of one end of cantilever 52 connection with touch screen,
The other end then connects a rotary connector 53, and shaft 54 is connected on the rotary connector 53, which is pierced by rotation and connects
Fitting 53；It is additionally provided with a pair of of fixed plate 55, which is connected to below operating platform by fixed plate connector 57, and
A distance is kept between a pair of of fixed plate 55, which may insure that rotary connector 53 penetrates between two fixed plates 55；This turn
Axis 54 at least has at least two to combine plane in the part that its both ends is pierced by, and is provided on the corresponding position of two fixed plates 55
For the location hole that shaft 54 passes through, which also has the location hole combination plane that plane is combined corresponding to shaft 54, also
To say, shaft combination plane can in conjunction with location hole in conjunction with plane after position at least two Support Positions to position cantilever 52
Angle.Further one rotating hole of setting, the rotating hole are connected to location hole near the location hole of two fixed plates 55, and
The aperture of rotating hole must assure that can be freely rotated after shaft 54 is moved to rotating hole.Such as: the shaft 54 be cylinder
The component of two side milling flat flat shape of body, the location hole of two fixed plates 55 correspond to cylinder component two sides flat interplanar
Away from square hole or similar square hole shape (such as: capsule shape hole), and rotating hole be connected to location hole is diameter greater than cylinder
The circular hole of body component.When pipe fitting channelling machine needs in use, cantilever 52 to be located in the position being supported in above operating platform.When
Using finish need to store touch panel unit 5 when, first shaft 54 is rotated in rotating hole, then rotates to cantilever 52 downwards
Shaft 54 moves again to location hole after angle, realizes the downward strong fix of cantilever 52, at this point, having of being connected of 52 one end of cantilever
The electric control box 51 of touch screen has been positioned in the accommodation space below operating platform.In addition, in order to ensure shaft 54 will not
Axial float is separately connected shaft shelves part 56 on the position that 54 both ends of shaft are pierced by two fixed plates 55.It should be noted that being the touching
Touch the cantilever 52 of screen assembly 5, rotary connector 53, shaft 54, fixed plate 55 binding site can be set in operating platform
Edge needs to be arranged on the operational platform the notch that can pass through for cantilever 52 if being arranged in the inclined middle position of operating platform.
Last optimal embodiment, after the electric control box 51 with touch screen is taken in accommodation space and is positioned, rotary connector
53 lower end surface (overturning at this time upward) is concordant with operating platform plane and covers notch.
In addition, frequency control motor revolving speed, which can be used, in the main shaft 11 of the utility model turns stepless adjustable, Yong Huke from 8-30
Revolving speed is adjusted according to pipe fitting actual conditions, is improved with regard to slot rolling quality and efficiency.
In view of existing pipe fitting channelling machine, oil cylinder stroke limit is slowly adjusted manually during debugging trench depth
Nut location is adjusted, and adjustment trouble is easy to appear the case where scrapping.The utility model further devises a kind of pipe fitting
The groove processing depth control apparatus of channelling machine.The groove processing depth control apparatus mainly uses magnetic railings ruler to cooperate electrical control
The structure of PLC in case.The working principle of magnetic railings ruler: non-contact scanning magnetic field, and by analog measurement be converted to absolutely or
Incremental output signal.Magnetic railings ruler is divided into magnetic scale and magnetic head, and recording on magnetic scale has equidistant NS signal (pole N and the extremely alternate change of S
Change), the signal on head read magnetic scale, and this signal is subdivided into AB signal and is output to PLC after processing.The material to magnetize
On equidistantly magnetize, read magnetized item with displacement with magnetic head and be changed into electric signal, can measure and be displaced.As shown in Figure 10: this is practical
It is novel it is middle by magnetic scale 71 be arranged in 18 upper end of pinch roller frame, a pinch roller frame cover board 181 is further arranged in the top of the pinch roller frame 18,
Correspond on the pinch roller frame cover board 181 and magnetic head is set at 71 position of magnetic scale, the signal output end of the magnetic head is connected further to
PLC.Magnetic grid reader 72 and reader shield 73 are further set on the pinch roller frame cover board 181.In use, first pipe fitting is rolled
Groove depth angle value inputs PLC, and PLC controls oil cylinder 4 and pushes pinch roller frame 18, when oil cylinder 4 (pinch roller frame 18) stroke goes to setting value, magnetic
Head reads the signal on magnetic scale 71, this signal is fed back to PLC, and PLC sends instructions so that 4 stop motion of oil cylinder, then pipe fitting
Slot rolling depth is exactly setting value (such as: 2.5mm).Certainly, user can also pass through the magnetic grid reader on pinch roller frame cover board 181
72 read slot rolling depth value at any time.By above structure, the utility model is very convenient and accurately realizes the setting of slot rolling depth
With effective control of groove processing depth.Since PLC can be set in the electric control box 51 for having touch screen, groove
Processing on real-time depth and processing situation can also be fed back by touch screen.
Please refer to Figure 11, the utility model further devises hydraulic fluid flow rate and the pressure control of a kind of pipe fitting channelling machine
Mechanism.It includes oil cylinder 4 and hydraulic package 2, in the cylinder body of the oil cylinder 4 by piston be divided into volume can corresponding change the first chamber
With the second chamber.As shown in figure 11: the hydraulic package 2 includes oil pump 21, high pressure filter 22, the first hydralic pressure gauge 23, ratio decompression
Valve 24, proportional flow control valve 25, the second hydralic pressure gauge 26, cooler 27, manual overflow valve 28 and solenoid valve 29.Wherein: the oil pump 21
By the input terminal of piping connection high pressure filter 22, the output end of the high pressure filter 22 passes through the manual overflow valve of piping connection
28 input terminal, the output end of the manual overflow valve 28 pass through the input terminal of piping connection proportional pressure-reducing valve 24, the manual overflow
First hydralic pressure gauge 23 is set on the pipeline between valve 28 and proportional pressure-reducing valve 24；The proportional pressure-reducing valve 24 passes through piping connection ratio
The input terminal of flow valve 25, the output end of the proportional flow control valve 25 are further separately connected by being provided with the pipeline of solenoid valve 29
To the first chamber (such as: epicoele 41) and the second chamber (such as: cavity of resorption 42) of oil cylinder 4, solenoid valve 29 connects the second chamber (such as cavity of resorption 42)
There are also the second hydralic pressure gauges 26 for setting on pipeline.The refluxing opening of the manual overflow valve 28 passes through piping connection cooler 27.
The work step of above structure is:
1, start oil pump 21.
2, hydraulic oil by manual 28 pressure regulation of overflow valve be successively input into the first hydralic pressure gauge 23, proportional pressure-reducing valve 24, using
The control of solenoid valve 29 enters the cavity of resorption 42 of oil cylinder 4, and the pinch roller 19 that oil cylinder 4 is controlled at this time is fallback state.
3, when starting slot rolling Machining Instruction, hydraulic oil is successively input into the first hydralic pressure gauge by manual 28 pressure regulation of overflow valve
23, proportional pressure-reducing valve 24, hydraulic oil enter the epicoele 41 of oil cylinder 4 through the control of solenoid valve 29, and oil cylinder 4 pushes pinch roller 19 close to pipe fitting
W。
4, when the second hydralic pressure gauge 26 incude it is hydraulic reach preset pressure when (i.e. pinch roller 19 has touched pipe fitting W), pass through
PLC changes 24 pressure of proportional pressure-reducing valve and the flow of proportional flow control valve 25 carries out slot rolling.
5, when slot rolling terminates (i.e. aforementioned magnetic railings ruler structure informs that PLC has reached default slot rolling depth), the control of pinch roller 19 exists
Original position cannot retreat, it is necessary to control solenoid valve 29 for hydraulic oil by operator's (or clicking manually by touch screen) control PLC
The cavity of resorption 42 of oil cylinder 4 is imported, the pinch roller 19 that oil cylinder 4 is controlled at this time is fallback state and unclamps pipe fitting W.
As described above, the essential of exercise of oil cylinder is in the utility model: unloaded oil cylinder F.F., loading cylinders slow-motion, slot rolling
End oil cylinder is parked in original position and does not move back, manual rewind oil cylinder.Unloaded oil cylinder F.F., it is therefore an objective to improve production efficiency, loading cylinders are slow
Into, it is therefore an objective to improve slot rolling quality.When pinch roller 19 contacts pipe fitting W, pressure to preset value sensor sender is to PLC, and PLC is new
Pressure flow instruction issue proportional flow control valve 8, proportional pressure-reducing valve, oil cylinder is worked with setting pressure and stability of flow.
Proportional flow control valve, ratio are used in the hydraulic fluid flow rate and pressure control mechanism of the pipe fitting channelling machine of the utility model
Example pressure reducing valve, i.e. electro-hydraulic proportional valve.The advantage is that: when equipment mechanism require during the work time the pressure to hydraulic system,
Flow parameter is adjusted or continuous control (such as: it is required that workbench is in work feed by the speed of slow, fast, slow consecutive variations
Degree realizes feeding, or realizes pressure control by some optimal control curve of certain precision analog), Normal hydraulic valve is then realized not
?.At this moment hydraulic system can be controlled with electro-hydraulic proportional valve.
Please refer to Figure 12, in order to cooperate the utility model pipe fitting channelling machine hydraulic fluid flow rate and pressure control mechanism,
Oil cylinder 4 in the utility model includes cylinder body 43, which passes through upper end cover 45 respectively and pedestal 46 is sealed
It closes, a piston 44, which is arranged in cylinder body 43, separates cylinder interior for epicoele 41 and cavity of resorption 42, and the piston rod of the piston 44 is pierced by
Pedestal connects pinch roller frame 18.The upper end cover 45 has the upper end cover access for connecting upper hydraulic tube 47, and upper hydraulic tube 47 passes through upper end
It is connected in lid access and epicoele 41；The pedestal 46 has the pedestal access for connecting lower hydraulic tube 48, and lower hydraulic tube 48 passes through pedestal
Access is connected to cavity of resorption 42.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (4)
1. a kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine, the pipe fitting channelling machine include slot rolling processing assembly and
Pinch roller power part；It is characterized by: the pinch roller power part is oil cylinder；The hydraulic fluid flow rate being made of oil cylinder and hydraulic package
And pressure control mechanism；In the cylinder body of the oil cylinder by piston be divided into volume can corresponding change the first chamber and the second chamber；The liquid
Pressure component includes the oil pump controlled by PLC connection, high pressure filter, the first hydralic pressure gauge, proportional pressure-reducing valve, proportional flow control valve, the
Two hydralic pressure gauges, manual overflow valve and solenoid valve, the oil pump pass through the input terminal of piping connection high pressure filter, the high pressure filter
Output end by the input terminal of the manual overflow valve of piping connection, the output end of the manual overflow valve is subtracted by piping connection ratio
The first hydralic pressure gauge is arranged on the pipeline between the manual overflow valve and proportional pressure-reducing valve in the input terminal of pressure valve；The proportional pressure-reducing valve
By the input terminal of piping connection proportional flow control valve, the output end of the proportional flow control valve is further by being provided with the pipe of solenoid valve
Road is connected respectively to the first chamber and the second chamber of oil cylinder, and solenoid valve connects setting on the pipeline of the second chamber, and there are also the second hydralic pressure gauges.
2. the hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine according to claim 1, it is characterised in that: the rolling
Slot processing assembly includes main shaft, motor, knurled wheel, wheel pressing shaft, pinch roller frame, pinch roller, the power of the lower end connection motor of the main shaft
The upper end setting knurled wheel of output end, the main shaft；Pinch roller is then arranged in side positioned at knurled wheel, which passes through pinch roller axis connection
On a pinch roller frame, which is driven by oil cylinder.
3. the hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine according to claim 1 or 2, it is characterised in that:
The pipe fitting channelling machine includes rack, which has operating platform and be located at operating platform supported underneath portion, below operating platform
Support portion between have accommodation space；The oil cylinder is arranged on the operational platform；The hydraulic package is arranged in accommodation space.
4. the hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine according to claim 1 or 2, it is characterised in that:
The oil cylinder includes cylinder body, which passes through upper end cover respectively and pedestal is closed, and a piston is arranged in cylinder body
Cylinder interior is separated as epicoele and cavity of resorption, the piston rod of the piston is pierced by pedestal connection pinch roller frame；The upper end cover has connection
The upper end cover access of upper hydraulic tube, upper hydraulic tube intracavitary are connected to by upper end cover access with upper；The pedestal has hydraulic under connection
The pedestal access of pipe, lower hydraulic tube are connected to by pedestal access with cavity of resorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730876.1U CN208991547U (en) | 2018-10-25 | 2018-10-25 | A kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730876.1U CN208991547U (en) | 2018-10-25 | 2018-10-25 | A kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine |
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| Publication Number | Publication Date |
|---|---|
| CN208991547U true CN208991547U (en) | 2019-06-18 |
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ID=66804567
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821730876.1U Active CN208991547U (en) | 2018-10-25 | 2018-10-25 | A kind of hydraulic fluid flow rate and pressure control mechanism of pipe fitting channelling machine |
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| Country | Link |
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| CN (1) | CN208991547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1012142S1 (en) | 2022-01-28 | 2024-01-23 | Milwaukee Electric Tool Corporation | Strut shearing die |
| USD1016111S1 (en) | 2022-01-28 | 2024-02-27 | Milwaukee Electric Tool Corporation | Strut shearing die |
-
2018
- 2018-10-25 CN CN201821730876.1U patent/CN208991547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1012142S1 (en) | 2022-01-28 | 2024-01-23 | Milwaukee Electric Tool Corporation | Strut shearing die |
| USD1016111S1 (en) | 2022-01-28 | 2024-02-27 | Milwaukee Electric Tool Corporation | Strut shearing die |
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