CN109570915A - The bearing processing method of the processing unit (plant) and application of large-scale the hydrostatic bearing device - Google Patents
The bearing processing method of the processing unit (plant) and application of large-scale the hydrostatic bearing device Download PDFInfo
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- CN109570915A CN109570915A CN201811307889.2A CN201811307889A CN109570915A CN 109570915 A CN109570915 A CN 109570915A CN 201811307889 A CN201811307889 A CN 201811307889A CN 109570915 A CN109570915 A CN 109570915A
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- 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
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- 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
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
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Abstract
The invention discloses the bearing processing methods of the processing unit (plant) and application of a kind of large-scale hydrostatic bearing device, are related to large-scale hydrostatic bearing manufacture field；Including vertically operating bar, plasma powder dust feeder and positioner for fixed static pressure bearing, pushing meanss are slidably connected on the vertically operating bar, welding gun is connected in the pushing meanss, the welding gun includes pipette tips and the body of a gun, the pipette tips are located in hydrostatic bearing, the plasma powder dust feeder is connect with welding gun, the plasma powder dust feeder is equipped with the solenoid valve for switching powder feeding pipe, the positioner includes positioner annulus, if being equipped with dry contact at the positioner annular edge, the positioner annular edge is nearby equipped with one close to switch, it is described to be electrically connected close to switch with a time relay, the time relay is electrically connected with the solenoid valve；The present invention is high in machining efficiency.
Description
Technical field
Invention belongs to large-scale hydrostatic bearing manufacture field, the in particular to processing unit (plant) of a kind of large-scale hydrostatic bearing and processing
Method.
Background technique
Type hydrostatic bearing is the core component inside hydroelectric generator, plays support and lubricating action, protection rotatable parts are just
Often work, the service life of hydrostatic bearing directly determine the service life of equipment.
Last item holds that volume is larger, and hydrostatic bearing inner hole built-up welding area is more than 1.5 square metres, if hydrostatic bearing inner sidewall is equipped with
Dry rectangular recess, rectangular recess are distributed along the circumferencial direction of hydrostatic bearing, and traditional technology is generally to hydrostatic bearing ontology inside
Wall carries out continuous built-up welding, then carries out groove milling to the hydrostatic bearing that built-up welding is completed, since hydrostatic bearing volume is big, while this static pressure
The material hardness of bearing is big, therefore groove milling speed is very slow, mills a rectangular recess needs 48 hours or more, processing efficiency is very low.
Summary of the invention
The purpose of invention is the shortcomings that processing efficiency is low in order to overcome the prior art, using interrupted built-up welding, makes rectangular recess
The welding block that region built-up welding is formed is few, to reduce the time of groove milling, and has saved wlding, provides a kind of high in machining efficiency big
The processing unit (plant) of type hydrostatic bearing.
Realization above-mentioned purpose, the invention adopts the following technical scheme:
A kind of processing unit (plant) of large size hydrostatic bearing, including vertically operating bar, plasma powder dust feeder and quiet for fixing
The positioner that last item is held slidably connects pushing meanss on the vertically operating bar, welding gun, institute is connected in the pushing meanss
Stating welding gun includes pipette tips and the body of a gun, and the pipette tips are located in hydrostatic bearing, and the plasma powder dust feeder is connect with welding gun,
The plasma powder dust feeder is equipped with the solenoid valve for switching powder feeding pipe, and the positioner includes positioner annulus,
If being equipped with dry contact at the positioner annular edge, the positioner annular edge is nearby equipped with a close switch, described
It is electrically connected close to switch with a time relay, the time relay is electrically connected with the solenoid valve.
When with the present invention, hydrostatic bearing is first fixed on positioner annulus the center point；According to hydrostatic bearing edge to be processed
If the edge of positioner annulus arrange dry contact, this hydrostatic bearing since inner sidewall has 8 rectangular recess, rectangular recess along
The circumferencial direction of hydrostatic bearing is evenly arranged, therefore is evenly arranged 8 contacts in positioner annular ring peripheral direction；Adjustment displacement
Machine, so that the axis horizontal of hydrostatic bearing and welding gun；Adjust the height of pushing meanss so that pipette tips and hydrostatic bearing inner sidewall it
Between distance be need of work distance；According to the revolving speed of positioner annulus and hydrostatic bearing setting time relay to be processed
Device；Hydrostatic bearing is preheated；Built-up welding is carried out to hydrostatic bearing inner sidewall using welding gun, plasma powder dust feeder starts
Powder feeding, while positioner annulus starts to rotate, pushing meanss push welding gun slowly to move along the axis direction of welding gun, pipette tips pair
The built-up welding path of hydrostatic bearing inner sidewall is in the shape of a spiral；When positioner annulus rotates, the rotation of positioner ring belt movable contact, whenever
When contact is moved to close to switch nearby, the time relay is signaled to close to switch, the time relay starts timing, same with this
When the time relay signal to solenoid valve, solenoid valve closes powder feeding pipe, plasma powder dust feeder stop powder feeding to weldering
Rifle, welding gun is molten to hydrostatic bearing inner sidewall electric arc sky, and the time relay signals to solenoid valve, solenoid valve after a period of time
Powder feeding pipe is opened, powder feeding to welding gun, welding gun restarts built-up welding to plasma powder dust feeder again；It is right after the completion of built-up welding
The inner sidewall of the hydrostatic bearing of heap postwelding carries out groove milling；Since the present invention uses interrupted built-up welding in built-up welding, pipette tips are passing through square
When connected in star position, plasma powder dust feeder stop powder feeding, therefore rectangular recess position there is no formed it is thicker by
In the welding block that built-up welding is formed, while simultaneously out-of-flatness around rectangular recess, it needs first to mill rectangular recess, rectangular recess is milled out to come,
Since the welding block that the built-up welding of rectangular recess region is formed is few, the time of groove milling is greatly reduced, while also saving wlding, adopted
It can be improved 80% or so with processing efficiency of the present invention；Then it is put into the rectangular recess on hydrostatic bearing inner sidewall and static pressure axis
The identical panelling of corbel matter；Turning is carried out to hydrostatic bearing inner sidewall, adjusts the thickness of built-up welding；When traditional technology turning, directly
To the hydrostatic bearing turning after groove milling, since the presence of rectangular recess has one section of neutral gear, knife when cutter head passes through rectangular recess
Head is easy to happen spring sword, and the service life of cutter is short, and the present invention is partially placed into and hydrostatic bearing material one in turning in rectangular recess
The panelling of sample effectively prevents spring sword so that interrupted turning is become continuous turning, substantially increases the service life of cutter.
To be preferred, a location nut is threaded on vertically operating bar, the location nut is resisted against pushing meanss
Lower section.
A location nut is threaded in straight operating stick, location nut is resisted against below pushing meanss, rotational positioning
Nut, location nut move up and down on vertically operating bar, and location nut pushes pushing meanss to move up and down, so as to adjust welding gun
Height, while location nut prevents the height of welding gun in weld deposit process from changing.
To be preferred, welding gun includes pipette tips and the body of a gun, and the pipette tips protective cover being adapted to pipette tips is arranged in the pipette tips, described
It is arranged with the body of a gun protective cover being adapted to the body of a gun on the body of a gun, is equipped with cooling liquid stream in the pipette tips protective cover and body of a gun protective cover
Dynamic chamber, the body of a gun protective cover are externally provided with coolant liquid cyclic water tank, and the coolant liquid cyclic water tank is equipped with water inlet pipe and water outlet
Pipe, the coolant flow chamber pass through water inlet pipe and connect with coolant liquid cyclic water tank, and the coolant flow chamber passes through out
Water pipe is connect with coolant liquid cyclic water tank.
Invention works long hours under higher preheating temperature (>=600 DEG C), and the pipette tips being adapted to pipette tips are arranged in pipette tips
Protective cover is arranged with the body of a gun protective cover being adapted to the body of a gun, pipette tips protective cover and body of a gun protective cover protection pipette tips and rifle on the body of a gun
Body keeps pipette tips and the body of a gun directly not heated, reduces the temperature of pipette tips and the body of a gun；It is all provided in pipette tips protective cover and body of a gun protective cover
Have a coolant flow chamber, coolant liquid cyclic water tank is equipped with water inlet pipe and outlet pipe, coolant flow chamber pass through water inlet pipe with
The connection of coolant liquid cyclic water tank, coolant flow chamber pass through outlet pipe and connect with coolant liquid cyclic water tank；When the invention works,
Coolant liquid cyclic water tank constantly recycles coolant liquid in the coolant flow chamber in input pipette tips protective cover and body of a gun protective cover, makes
It obtains pipette tips protective cover and body of a gun protective cover is in a lower temperature always, guarantee in pipette tips protective cover and body of a gun protective cover
Temperature does not rise, and can make the present invention in the environment of being higher than 600 DEG C after continuous work 45 hours, welding gun surface temperature does not surpass
70 DEG C are crossed, ensure that the lower welding gun that works long hours is not burnt out.
The bearing processing method of the large-scale hydrostatic bearing processing unit (plant) of kind application, the specific steps of which are as follows:
(1) hydrostatic bearing is fixed on positioner annulus the center point, hydrostatic bearing be it is columnar structured, when positioner annulus rotates
When, hydrostatic bearing is rotated along its axis；
(2) contact is arranged along the edge of positioner annulus, according to the quantity of the rectangular recess of hydrostatic bearing to be processed and position
Set the quantity to determine contact and position, the quantity of contact and the rectangular recess quantity of hydrostatic bearing are equal, each contact with
The line of its corresponding rectangular recess intersects with the axis of hydrostatic bearing；
(3) adjust positioner so that the axis horizontal of hydrostatic bearing and welding gun, when welding gun is moved along its axis, pipette tips with it is quiet
The distance of pressure bearing inner wall remains unchanged；
(4) height of pushing meanss is adjusted, so that the distance between pipette tips and hydrostatic bearing inner sidewall are at a distance from need of work；
(5) according to the width setting time relay of the revolving speed of positioner annulus and the rectangular recess of hydrostatic bearing to be processed,
Since the time relay controls plasma powder dust feeder from powder feeding is stopped to the time interval restarted powder feeding,
Stopping powder feeding is to not form welding block in the rectangular recess of hydrostatic bearing, therefore rectangular recess width is bigger, time relay
Device is from bigger down to the time interval being re-energised, and the revolving speed of positioner annulus is slower, and the time relay is from down to again
The time interval of energization is bigger, and vice versa；
(6) hydrostatic bearing is preheated, is prepared for built-up welding；
(7) built-up welding is carried out to hydrostatic bearing inner sidewall using welding gun, plasma powder dust feeder starts powder feeding, while positioner
Annulus starts to rotate, and pushing meanss push welding gun slowly to move along the axis direction of welding gun, and pipette tips are to hydrostatic bearing inner sidewall
Built-up welding path in the shape of a spiral；
(8) when positioner annulus rotates, the rotation of positioner ring belt movable contact, when being moved to close to switch nearby contact,
The time relay is signaled to close to switch, the time relay starts timing, and the time relay signals to electromagnetism at the same time
Valve, solenoid valve close powder feeding pipe, and plasma powder dust feeder stops powder feeding to welding gun, and welding gun is to hydrostatic bearing inner sidewall electricity
Arc sky is molten, and the time relay signals to solenoid valve after a period of time, and solenoid valve opens powder feeding pipe, and plasma powder is sent
Again powder feeding to welding gun, welding gun restarts built-up welding to powder device；
(9) groove milling is carried out to the inner sidewall of the hydrostatic bearing of heap postwelding, since the present invention uses interrupted built-up welding, pipette tips in built-up welding
When by rectangular recess position, plasma powder dust feeder stops powder feeding, therefore there is no formed in rectangular recess position
The thicker welding block formed due to built-up welding, while simultaneously out-of-flatness around rectangular recess, need first to mill rectangular recess, by rectangular recess
It mills out and, since the welding block that the built-up welding of rectangular recess region is formed is few, greatly reduces the time of groove milling, also save simultaneously
Wlding can be improved 80% or so using processing efficiency of the present invention；
(10) panelling identical with hydrostatic bearing material is put into the rectangular recess on hydrostatic bearing inner sidewall；
(11) turning is carried out to hydrostatic bearing inner sidewall, adjusts the thickness of built-up welding, turning, adjustment are carried out to hydrostatic bearing inner sidewall
The thickness of built-up welding, when traditional technology turning, directly to the hydrostatic bearing turning after groove milling, due to the presence of rectangular recess, cutter head
When by rectangular recess, one section of neutral gear is had, cutter head is easy to happen spring sword, and the service life of cutter is short, and the present invention is in turning, in square
Connected in star is partially placed into the panelling as hydrostatic bearing material, so that interrupted turning is become continuous turning, effectively prevents
Spring sword substantially increases the service life of cutter.
Advantageous effect of the invention is: (1) using interrupted built-up welding in built-up welding due to the present invention, pipette tips are passing through rectangular recess
When position, plasma powder dust feeder stops powder feeding, therefore thicker due to built-up welding there is no being formed in rectangular recess position
The welding block of formation, while simultaneously out-of-flatness around rectangular recess, need first to mill rectangular recess, rectangular recess are milled out to come, due to square
The welding block that the built-up welding of connected in star region is formed is few, therefore greatly reduces the time of groove milling, while also saving wlding, using this hair
Bright processing efficiency can be improved 80% or so；(2) it is partially placed into the panelling as hydrostatic bearing material in rectangular recess, thus will
Interrupted turning becomes continuous turning, effectively prevents spring sword, substantially increases the service life of cutter；(3) rotational positioning nut, positioning
Nut moves up and down on vertically operating bar, and location nut pushes pushing meanss to move up and down, so as to adjust the height of welding gun, together
When location nut prevent the height of welding gun in weld deposit process from changing；(4) pipette tips protective cover and body of a gun protective cover protect pipette tips
With the body of a gun, keeps pipette tips and the body of a gun directly not heated, reduce the temperature of pipette tips and the body of a gun.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the sectional view of hydrostatic bearing；
Fig. 4 is the structural schematic diagram of welding gun；
Fig. 5 is the sectional view of welding gun.
In: it is vertically operating bar 1, pushing meanss 2, welding gun 3, plasma powder dust feeder 4, solenoid valve 5, positioner 6, quiet
Last item hold 7, pipette tips 8, positioner annulus 9, contact 10, close to switch 11, the body of a gun 12, pipette tips protective cover 13, body of a gun protective cover 14,
Coolant flow chamber 15, coolant liquid cyclic water tank 16, water inlet pipe 17, outlet pipe 18, location nut 19.
Specific embodiment
Face combines the drawings and specific embodiments to be further elaborated on the present invention:
Fig. 1, Fig. 2 and Fig. 3 are a kind of processing unit (plant) of large-scale hydrostatic bearing, including vertically operating bar 1, plasma powder powder feeding dress
Set 4 and for fixed static pressure bearing 7 positioner 6, slidably connect pushing meanss 2, the promotion on the vertically operating bar 1
Welding gun 3 is connected on device 2, the welding gun 3 includes pipette tips 8 and the body of a gun 12, and the pipette tips 8 are located in hydrostatic bearing 7, described etc.
Ion powder dust feeder 4 is connect with welding gun 3, and the plasma powder dust feeder 4 is equipped with the electricity for switching powder feeding pipe
Magnet valve 5, the positioner 6 includes positioner annulus 9, if 9 edge of positioner annulus is equipped with dry contact 10, the displacement
9 adjacent edges of machine annulus are equipped with one close to switch 11, and the close switch 11 is electrically connected with a time relay, when described
Between relay be electrically connected with solenoid valve 5.
When with the present invention, hydrostatic bearing is first fixed on positioner annulus the center point；According to hydrostatic bearing edge to be processed
If the edge of positioner annulus arrange dry contact, this hydrostatic bearing since inner sidewall has 8 rectangular recess, rectangular recess along
The circumferencial direction of hydrostatic bearing is evenly arranged, therefore is evenly arranged 8 contacts in positioner annular ring peripheral direction；Adjustment displacement
Machine, so that the axis horizontal of hydrostatic bearing and welding gun；Adjust the height of pushing meanss so that pipette tips and hydrostatic bearing inner sidewall it
Between distance be need of work distance；According to the revolving speed of positioner annulus and hydrostatic bearing setting time relay to be processed
Device；Hydrostatic bearing is preheated；Built-up welding is carried out to hydrostatic bearing inner sidewall using welding gun, plasma powder dust feeder starts
Powder feeding, while positioner annulus starts to rotate, pushing meanss push welding gun slowly to move along the axis direction of welding gun, pipette tips pair
The built-up welding path of hydrostatic bearing inner sidewall is in the shape of a spiral；When positioner annulus rotates, the rotation of positioner ring belt movable contact, whenever
When contact is moved to close to switch nearby, the time relay is signaled to close to switch, the time relay starts timing, same with this
When the time relay signal to solenoid valve, solenoid valve closes powder feeding pipe, plasma powder dust feeder stop powder feeding to weldering
Rifle, welding gun is molten to hydrostatic bearing inner sidewall electric arc sky, and the time relay signals to solenoid valve, solenoid valve after a period of time
Powder feeding pipe is opened, powder feeding to welding gun, welding gun restarts built-up welding to plasma powder dust feeder again；It is right after the completion of built-up welding
The inner sidewall of the hydrostatic bearing of heap postwelding carries out groove milling；Since the present invention uses interrupted built-up welding in built-up welding, pipette tips are passing through square
When connected in star position, plasma powder dust feeder stop powder feeding, therefore rectangular recess position there is no formed it is thicker by
In the welding block that built-up welding is formed, while simultaneously out-of-flatness around rectangular recess, it needs first to mill rectangular recess, rectangular recess is milled out to come,
Since the welding block that the built-up welding of rectangular recess region is formed is few, the time of groove milling is greatly reduced, while also saving wlding, adopted
It can be improved 80% or so with processing efficiency of the present invention；Then it is put into the rectangular recess on hydrostatic bearing inner sidewall and static pressure axis
The identical panelling of corbel matter；Turning is carried out to hydrostatic bearing inner sidewall, adjusts the thickness of built-up welding；When traditional technology turning, directly
To the hydrostatic bearing turning after groove milling, since the presence of rectangular recess has one section of neutral gear, knife when cutter head passes through rectangular recess
Head is easy to happen spring sword, and the service life of cutter is short, and the present invention is partially placed into and hydrostatic bearing material one in turning in rectangular recess
The panelling of sample effectively prevents spring sword so that interrupted turning is become continuous turning, substantially increases the service life of cutter.
1 shows, is threaded with a location nut 19 on vertically operating bar 1, the location nut 19 is resisted against promotion
2 lower section of device.
A location nut is threaded in straight operating stick, location nut is resisted against below pushing meanss, rotational positioning
Nut, location nut move up and down on vertically operating bar, and location nut pushes pushing meanss to move up and down, so as to adjust welding gun
Height, while location nut prevents the height of welding gun in weld deposit process from changing.
4 and Fig. 5 shows that welding gun 3 includes pipette tips 8 and the body of a gun 12, is arranged with the pipette tips being adapted to pipette tips 8 in the pipette tips 8
Protective cover 13 is arranged with the body of a gun protective cover 14 being adapted to the body of a gun 12, the pipette tips protective cover 13 and the body of a gun on the body of a gun 12
Coolant flow chamber 15 is equipped in protective cover 14, the body of a gun protective cover 14 is externally provided with coolant liquid cyclic water tank 16, described cold
But liquid cyclic water tank 16 is equipped with water inlet pipe 17 and outlet pipe 18, and the coolant flow chamber 15 passes through water inlet pipe 17 and cooling
Liquid cyclic water tank 16 connects, and the coolant flow chamber 15 is connect by outlet pipe 18 with coolant liquid cyclic water tank 16.
Invention works long hours under higher preheating temperature (>=600 DEG C), and the pipette tips being adapted to pipette tips are arranged in pipette tips
Protective cover is arranged with the body of a gun protective cover being adapted to the body of a gun, pipette tips protective cover and body of a gun protective cover protection pipette tips and rifle on the body of a gun
Body keeps pipette tips and the body of a gun directly not heated, reduces the temperature of pipette tips and the body of a gun；It is all provided in pipette tips protective cover and body of a gun protective cover
Have a coolant flow chamber, coolant liquid cyclic water tank is equipped with water inlet pipe and outlet pipe, coolant flow chamber pass through water inlet pipe with
The connection of coolant liquid cyclic water tank, coolant flow chamber pass through outlet pipe and connect with coolant liquid cyclic water tank；When the invention works,
Coolant liquid cyclic water tank constantly recycles coolant liquid in the coolant flow chamber in input pipette tips protective cover and body of a gun protective cover, makes
It obtains pipette tips protective cover and body of a gun protective cover is in a lower temperature always, guarantee in pipette tips protective cover and body of a gun protective cover
Temperature does not rise, and can make the present invention in the environment of being higher than 600 DEG C after continuous work 45 hours, welding gun surface temperature does not surpass
70 DEG C are crossed, ensure that the lower welding gun that works long hours is not burnt out.
The bearing processing method of the large-scale hydrostatic bearing processing unit (plant) of kind application, the specific steps of which are as follows:
(1) hydrostatic bearing 7 is fixed on 9 the center point of positioner annulus, hydrostatic bearing be it is columnar structured, when positioner annulus turns
When dynamic, hydrostatic bearing is rotated along its axis；
(2) contact 10 is arranged along the edge of positioner annulus 9, according to the quantity of the rectangular recess of hydrostatic bearing 7 to be processed
And position determines quantity and the position of contact 10, the quantity of contact and the rectangular recess quantity of hydrostatic bearing are equal, each
The line of the corresponding rectangular recess in contact intersects with the axis of hydrostatic bearing；
(3) adjust positioner 6 so that the axis horizontal of hydrostatic bearing 7 and welding gun 3, when welding gun is moved along its axis, pipette tips and
The distance of hydrostatic bearing inner wall remains unchanged；
(4) adjust the height of pushing meanss 2 so that the distance between pipette tips 8 and 7 inner sidewall of hydrostatic bearing for need of work away from
From；
(5) according to the width setting time relay of the revolving speed of positioner annulus 9 and the rectangular recess of hydrostatic bearing 7 to be processed
Device, since the time relay controls plasma powder dust feeder from powder feeding is stopped between the time restarted powder feeding
Every, stopping powder feeding is to not form welding block in the rectangular recess of hydrostatic bearing, therefore rectangular recess width is bigger, the time after
For electric appliance from bigger down to the time interval being re-energised, the revolving speed of positioner annulus is slower, and the time relay is from down to weight
The time interval being newly powered is bigger, and vice versa；
(6) hydrostatic bearing 7 is preheated, is prepared for built-up welding；
(7) built-up welding is carried out to 7 inner sidewall of hydrostatic bearing using welding gun 3, plasma powder dust feeder 4 starts powder feeding, same to time-varying
Position machine annulus 9 starts to rotate, and pushing meanss 2 push welding gun 3 slowly to move along the axis direction of welding gun 3, and pipette tips 8 are to static pressure axis
Hold the built-up welding path of 7 inner sidewalls in the shape of a spiral；
(8) when positioner annulus 9 rotates, positioner annulus 9 is rotated with movable contact 10, whenever contact 10 is moved to close to switch 11
When neighbouring, the time relay is signaled to close to switch 11, the time relay starts timing, and the time relay transmits at the same time
Number solenoid valve 5 is given, solenoid valve 5 closes powder feeding pipe, and plasma powder dust feeder 4 stops powder feeding to welding gun 3, and welding gun 3 is to quiet
It is molten that last item holds 7 inner sidewall electric arc skies, and the time relay signals to solenoid valve 5 after a period of time, and solenoid valve 5 is by powder feeding pipe
It opens, powder feeding to welding gun 3, welding gun 3 restarts built-up welding to plasma powder dust feeder 4 again；
(9) groove milling is carried out to the inner sidewall of the hydrostatic bearing 7 of heap postwelding, since the present invention uses interrupted built-up welding, rifle in built-up welding
For head when by rectangular recess position, plasma powder dust feeder stops powder feeding, therefore not tangible in rectangular recess position
At the thicker welding block formed due to built-up welding, while around rectangular recess and out-of-flatness, need first to mill rectangular recess, rectangle is recessed
Slot, which mills out, to be come, and since the welding block that the built-up welding of rectangular recess region is formed is few, greatly reduces the time of groove milling, while also saving
Wlding, using processing efficiency of the present invention can be improved 80% or so；
(10) panelling identical with 7 material of hydrostatic bearing is put into the rectangular recess on 7 inner sidewall of hydrostatic bearing；
(11) turning is carried out to 7 inner sidewall of hydrostatic bearing, adjusts the thickness of built-up welding, turning is carried out to hydrostatic bearing inner sidewall, is adjusted
The thickness of whole built-up welding, when traditional technology turning, directly to the hydrostatic bearing turning after groove milling, due to the presence of rectangular recess, knife
Head pass through rectangular recess when, have one section of neutral gear, cutter head is easy to happen spring sword, and the service life of cutter is short, the present invention in turning,
Rectangular recess is partially placed into the panelling as hydrostatic bearing material, so that interrupted turning is become continuous turning, effectively avoids
Spring sword, substantially increases the service life of cutter.
Claims (5)
1. a kind of processing unit (plant) of large size hydrostatic bearing, which is characterized in that including vertically operating bar (1), plasma powder powder feeding
Device (4) and the positioner (6) for being used for fixed static pressure bearing (7), slidably connect pushing meanss on the vertically operating bar (1)
(2), it is connected with welding gun (3) on the pushing meanss (2), the welding gun (3) includes pipette tips (8) and the body of a gun (12), the pipette tips
(8) it is located in hydrostatic bearing (7), the plasma powder dust feeder (4) connect with welding gun (3), and the plasma powder is sent
Powder device (4) is equipped with the solenoid valve (5) for switching powder feeding pipe, and the positioner (6) includes positioner annulus (9), described
For positioner annulus (9) if edge is equipped with dry contact (10), positioner annulus (9) adjacent edges are equipped with one close to switch
(11), described to be electrically connected close to switch (11) with a time relay, the time relay is electrically connected with solenoid valve (5).
2. the processing unit (plant) of large size hydrostatic bearing according to claim 1, which is characterized in that described close to switch (11) position
It is described close to switch (11) and contact when positioner annulus (9) rotation in positioner annulus (9) close to the side of welding gun (3)
(10) closest to when distance be 5mm.
3. the processing unit (plant) of large size hydrostatic bearing according to claim 1, which is characterized in that the vertically operating bar (1)
On be threaded with a location nut (19), the location nut (19) is resisted against below pushing meanss (2).
4. the processing unit (plant) of large-scale hydrostatic bearing described according to claim 1 or 2 or 3 any one, which is characterized in that described
Welding gun (3) includes pipette tips (8) and the body of a gun (12), is arranged with the pipette tips protective cover being adapted to pipette tips (8) on the pipette tips (8)
(13), be arranged with the body of a gun protective cover (14) being adapted to the body of a gun (12) on the body of a gun (12), the pipette tips protective cover (13) and
It is equipped with coolant flow chamber (15) in body of a gun protective cover (14), the body of a gun protective cover (14) is externally provided with coolant liquid cyclic water tank
(16), the coolant liquid cyclic water tank (16) is equipped with water inlet pipe (17) and outlet pipe (18), the coolant flow chamber (15)
It is connect by water inlet pipe (17) with coolant liquid cyclic water tank (16), the coolant flow chamber (15) passes through outlet pipe (18)
It is connect with coolant liquid cyclic water tank (16).
5. a kind of bearing processing method using large-scale hydrostatic bearing processing unit (plant) described in any one of Claims 1-4,
It is characterized in that, the specific steps of which are as follows:
(1) hydrostatic bearing (7) is fixed on positioner annulus (9) the center point；
(2) contact (10) are arranged along the edge of positioner annulus (9), according to the rectangular recess of hydrostatic bearing (7) to be processed
Quantity and position determine quantity and the position of contact (10)；
(3) positioner (6) are adjusted, so that the axis horizontal of hydrostatic bearing (7) and welding gun (3)；
(4) height of pushing meanss (2) is adjusted, so that the distance between pipette tips (8) and hydrostatic bearing (7) inner sidewall need for work
The distance wanted；
(5) according to the width setting time of the revolving speed of positioner annulus (9) and the rectangular recess of hydrostatic bearing to be processed (7) after
Electric appliance；
(6) hydrostatic bearing (7) is preheated；
(7) built-up welding being carried out to hydrostatic bearing (7) inner sidewall using welding gun (3), plasma powder dust feeder (4) starts powder feeding,
Positioner annulus (9) starts to rotate simultaneously, and pushing meanss (2) push welding gun (3) slowly to transport along the axis direction of welding gun (3)
It is dynamic, pipette tips (8) to the built-up welding path of hydrostatic bearing (7) inner sidewall in the shape of a spiral；
(8) when positioner annulus (9) rotates, positioner annulus (9) band movable contact (10) rotates, and connects whenever contact (10) move to
Nearly switch (11) nearby when, signal to the time relay close to switch (11), the time relay starts timing, at the same time when
Between relay signal to solenoid valve (5), solenoid valve (5) closes powder feeding pipe, plasma powder dust feeder (4) stop powder feeding
It gives welding gun (3), welding gun (3) is molten to hydrostatic bearing (7) inner sidewall electric arc sky, and the time relay signals to after a period of time
Solenoid valve (5), solenoid valve (5) open powder feeding pipe, and welding gun (3), welding gun are given in powder feeding to plasma powder dust feeder (4) again
(3) restart built-up welding；
(9) groove milling is carried out to the inner sidewall of the hydrostatic bearing (7) of heap postwelding；
(10) panelling identical with hydrostatic bearing (7) material is put into the rectangular recess on hydrostatic bearing (7) inner sidewall；
(11) turning is carried out to hydrostatic bearing (7) inner sidewall, adjusts the thickness of built-up welding.
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| CN201811307889.2A CN109570915B (en) | 2018-11-05 | 2018-11-05 | Machining device for large hydrostatic bearing and bearing machining method using machining device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289928A (en) * | 2021-12-31 | 2022-04-08 | 武汉高力热喷涂工程有限责任公司 | Plasma surfacing material and surfacing method |
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| CN109570915B (en) | 2021-01-12 |
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