CN218837166U - Double-valve-seat swinging grinding equipment - Google Patents
Double-valve-seat swinging grinding equipment Download PDFInfo
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- CN218837166U CN218837166U CN202222863300.5U CN202222863300U CN218837166U CN 218837166 U CN218837166 U CN 218837166U CN 202222863300 U CN202222863300 U CN 202222863300U CN 218837166 U CN218837166 U CN 218837166U
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Abstract
The utility model provides a double-disk seat sways grinding device, including lathe body, fixture and disk seat actuating mechanism, the fixture activity sets up on the lathe body, disk seat actuating mechanism installs drive and on standing the seat fixture is rotatory, adopts the beneficial effects of the utility model are that, usable disk seat actuating mechanism rotates fixture for in the course of grinding, can carry out the regulation of angle to the disk seat, be favorable to increasing the grinding area of contact of ball core and disk seat, improve sealed effect.
Description
Technical Field
The utility model relates to a valve grinds the processing field, especially relates to a double-disk seat sways grinding device.
Background
The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, wherein the sealing effect of a ball core and a valve seat is particularly important, two modes are provided for the conventional large-caliber ball core double-valve seat matching, one mode is a manual matching mode, the other mode is a machine matching mode, the manual matching can only grind a single valve seat and the ball core, the two valve seats configured by the ball core cannot be interchanged, the pressures of all aspects of the valve seat are inconsistent during grinding, the surface roughness distribution of the ball core is uneven, the rotating torque of the ball core is inconsistent, the sealing performance cannot be guaranteed, the labor intensity is high, the production efficiency is low, and the integral service life of the valve is also influenced;
in the process of adopting machine lapping, because the single-valve-seat ball core lapping device grinds one valve seat and the ball core, different valve seats still have difference, and the influence on the sealing performance cannot be avoided;
the horizontal ball core double-valve seat grinding equipment is inconvenient in installation and clamping of a ball core and a valve seat, in addition, grinding paste and diluted grease are required to be added continuously in grinding, time and labor are wasted, meanwhile, a clamping mechanism for installing the valve seat needs to adopt a flexible connection mode, the installed valve seat can naturally incline due to the action of gravity, when the pre-pressure provided by a spring is insufficient, the grinding effect of the ball core valve seat can be influenced, so that grinding failure is caused, meanwhile, due to the influence of the valve seat clamping mechanism and the gravity of the valve seat, the stress state of a valve seat sealing surface in the grinding process can be changed, the situation that the part of a hole opening is over ground easily occurs, meanwhile, pre-pressure adjustment of all the existing ball core grinding devices is realized, the pre-pressure adjustment is realized by visual observation of a spring compression amount or a ruler by an operator, the error is large, the pre-pressures of the upper valve seat and the lower valve seat on the ball core can not be really reflected, the grinding pressures of the two valve seats in the same time are not necessarily, the thicknesses of hard alloy layers on the surfaces of the valve seats are inconsistent, and the service lives of products are influenced;
the vertical ball core double-valve seat grinding equipment is adopted, a valve seat can only passively deflect a certain angle by virtue of flexible connection during grinding, and cannot actively swing, when a large-caliber ball core valve seat is ground, the structure of the grinding equipment can cause unsafe factors due to overlarge gravity of a ball core, for a fixed ball core with a ball handle, the ball handle is longer, a tailstock center and a swing center are far farther than a headstock, the moment needing to swing is correspondingly increased, the existing structure cannot meet the requirement, the angle of the valve seat clamping device is fixed, the ball core can only be rotated to grind the valve seat, and the angle of the valve seat cannot be adjusted in the grinding process.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide a double-disk seat sways grinding device for solve among the prior art problem that disk seat clamping device can't sway the disk seat at the grinding in-process.
To achieve the above and other related objects, the present invention provides a double-seat swing grinding apparatus, comprising:
a machine tool body;
the clamping mechanism is used for mounting the valve seat;
the valve seat driving mechanism is used for driving the clamping mechanism to rotate;
the machine tool body is used for installing the clamping mechanism and the valve seat driving mechanism;
the clamping mechanism is movably arranged on the machine tool body and comprises two clamping units, a grinding area is formed between the two clamping units, the valve seat driving mechanism is arranged on the machine tool body, and the valve seat driving mechanism drives the two clamping units to swing around the grinding area.
Optionally, usable disk seat actuating mechanism rotates fixture for in grinding process, can carry out the regulation of angle to the disk seat, be favorable to increasing the grinding area of contact of ball core and disk seat, improve sealed effect.
Optionally, the clamping mechanism includes a rotating arm, a center of the rotating arm is rotatably disposed at an upper end of the machine tool body, and the valve seat driving mechanism is configured to drive the rotating arm to swing;
the two clamping units are movably arranged at two ends of the rotating arm respectively, the sliding direction of the clamping units is consistent with the length direction of the rotating arm, and a clamping grinding area is formed between the clamping units.
Optionally, the lathe body includes the seat that stands of vertical setting, the upper end of standing the seat still is equipped with two and is used for spacingly swinging boom rotation angle's stopper, the stopper is located stand the side that the seat is close to the guide rail, the stopper is located the both sides of swinging boom.
Optionally, still be equipped with two disk seat adjusting device on the swinging boom, disk seat adjusting device sets up respectively the both ends of swinging boom, disk seat adjusting device with the centre gripping unit one-to-one, the disk seat adjusting device drive corresponds the centre gripping unit is in slide in the length direction of swinging boom.
Optionally, the clamping unit includes flexible centre gripping shell of disk seat and chuck, the fixed setting of flexible centre gripping shell of disk seat is in disk seat adjusting device's expansion end, the flexible centre gripping shell of disk seat is cylindric, still rotatory installation elasticity grinding shaft in the flexible centre gripping shell of disk seat, the both ends of elasticity grinding shaft are stretched out the flexible centre gripping shell of disk seat, the chuck pass through the shaft coupling with elasticity grinding shaft is connected.
Optionally, the elastic grinding shaft comprises a flexible clamping main shaft and a flexible clamping auxiliary shaft, the flexible clamping main shaft is of a hollow tubular structure, two ends of the flexible clamping main shaft are respectively and fixedly sleeved with at least one bearing, an outer ring of each bearing is fixedly connected with an inner wall of the flexible clamping shell of the valve seat, two ends of the flexible clamping main shaft extend out of the flexible clamping shell of the valve seat, one end of the flexible clamping main shaft is blocked, and the flexible clamping auxiliary shaft is movably inserted into the other end of the flexible clamping main shaft;
the flexible clamping auxiliary shaft flat key is arranged in the flexible clamping main shaft.
Optionally, a pressure sensor is further arranged in the flexible clamping main shaft, and the pressure sensor is mounted at the plugging end of the flexible clamping main shaft.
Optionally, a pressure spring is further disposed in the flexible clamping main shaft, two ends of the pressure spring respectively abut against the end surfaces corresponding to the flexible clamping main shaft and the flexible clamping auxiliary shaft, and the pressure spring is disposed around the pressure sensor.
Optionally, the clamping unit further includes a grinding driving device, the grinding driving device is disposed on an outer wall of the flexible clamping shell of the valve seat, the grinding driving device drives the extending end corresponding to the elastic grinding shaft to rotate, and the chuck is connected with the flexible clamping auxiliary shaft and rotates coaxially.
Optionally, the coupling is a universal coupling.
As the above, the utility model discloses a double-disk seat sways grinding device has following beneficial effect: can utilize disk seat actuating mechanism to rotate fixture at the grinding in-process for at the grinding in-process, can carry out the regulation of angle to the disk seat, be favorable to increasing the grinding area of contact of ball core and disk seat, improve sealed effect.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an application state of the present invention;
FIG. 3 is a partial cross-sectional view of one embodiment of the present invention;
FIG. 4 is a schematic partial cross-sectional view of a clamping unit according to an embodiment of the present invention;
FIG. 5 is a schematic illustration in partial cross-sectional view of a front support assembly in accordance with an embodiment of the present invention;
FIG. 6 is a partial cross-sectional view of the rear support assembly in accordance with one embodiment of the present invention.
Description of reference numerals
1a mounting baseplate
1b vertical seat
1c guide rail
1d limiting block
1e guide rail driving device
1f skateboard
2. Rotating arm
2a drive shaft
3a grinding driving device
3b flexible clamping shell for valve seat
3c chuck
3e flexible clamping main shaft
3f flexible clamping auxiliary shaft
3g torque sensor
3h pressure sensor
4a front supporting seat
4b front bedside cabinet
4c hollow rotating shaft
4d rotating sleeve
4e fixed centre
5a rear supporting seat
5b rear bedside cabinet
5c hollow adjusting shaft
5d adjusting sleeve
5e tailstock centre
7. Fixed ball core
8. Valve seat
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Please refer to fig. 1 to 6. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated. The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Example 1:
fig. 1 to fig. 6 show, the utility model provides a double-disk seat sways grinding device, include:
a machine tool body;
the clamping mechanism is used for mounting the valve seat 8;
the valve seat driving mechanism is used for driving the clamping mechanism to rotate;
the machine tool body is used for mounting the clamping mechanism and the valve seat driving mechanism;
the clamping mechanism is movably arranged on the machine tool body and comprises two clamping units, a grinding area is formed between the two clamping units, the valve seat driving mechanism is arranged on the machine tool body, and the valve seat driving mechanism drives the two clamping units to swing around the grinding area.
In one embodiment, the clamping mechanism comprises a rotating arm 2, the center of the rotating arm 2 is rotatably arranged at the upper end of the machine tool body, and the valve seat driving mechanism is used for driving the rotating arm 2 to swing;
two the centre gripping unit activity respectively sets up the both ends of swinging boom 2, the slip direction of centre gripping unit with the length direction of swinging boom 2 is unanimous, and two form the centre gripping between the centre gripping unit and grind the region.
In one embodiment, the machine tool body comprises an upright seat 1b, and a rotating hole is further horizontally penetrated through the upper end of the upright seat 1b and used for rotatably mounting the clamping mechanism and providing a supporting framework;
in one embodiment, the valve seat driving mechanism comprises a transmission shaft 2a and a driving motor, the transmission shaft 2a is movably arranged in the rotating hole in a penetrating manner, the end part of the transmission shaft 2a far away from the rotating arm 2 extends out of the rotating hole, and the valve seat driving mechanism drives the transmission shaft 2a to rotate, so that in the grinding process, the rotating arm 2 can be driven to rotate by the valve seat driving mechanism, and the grinding contact area between the ball core and the valve seat can be increased in the grinding process of the valve seat;
a clamping grinding area is formed between the two clamping units.
In one of the embodiments, still be equipped with two stopper 1d that are used for spacing swinging boom 2 rotation angle on standing seat 1b, stopper 1d is located and stands the side that seat 1b is close to guide rail 1c, and stopper 1d is located the both sides of swinging boom 2, and stopper 1d is close to the top of standing seat 1 b.
In one embodiment, two valve seat adjusting devices are further disposed on the rotating arm 2, the valve seat adjusting devices are respectively disposed at two ends of the rotating arm 2, and the valve seat adjusting devices drive the corresponding clamping units to slide in the length direction of the rotating arm 2.
In one embodiment, the clamping unit comprises a flexible clamping shell 3b of the valve seat and a chuck 3c, the flexible clamping shell 3b of the valve seat is fixedly arranged at the movable end of the valve seat adjusting device, the flexible clamping shell 3b of the valve seat is cylindrical, an elastic grinding shaft is further rotatably arranged in the flexible clamping shell 3b of the valve seat, two ends of the elastic grinding shaft extend out of the flexible clamping shell 3b of the valve seat, the chuck 3c is connected with the elastic grinding shaft through a coupler, and the chuck 3c is used for fixing the valve seat 8.
In one embodiment, the elastic grinding shaft comprises a flexible clamping main shaft 3e and a flexible clamping auxiliary shaft 3f, the flexible clamping main shaft 3e is of a hollow tubular structure, two ends of the flexible clamping main shaft 3e are respectively and fixedly sleeved with at least one bearing, the outer ring of each bearing is fixedly connected with the inner wall of the valve seat flexible clamping shell 3b, two ends of the flexible clamping main shaft 3e extend out of the valve seat flexible clamping shell 3b, one end of the flexible clamping main shaft 3e is sealed, and the flexible clamping auxiliary shaft 3f is movably inserted into the other end of the flexible clamping main shaft 3 e;
the flexible clamping auxiliary shaft 3f is arranged in the flexible clamping main shaft 3e in a flat key mode.
In one of the embodiments, the flexible clamping secondary shaft 3f is disposed inside the flexible clamping primary shaft 3e through a ball spline bearing whose outer wall is fixedly connected with the inner wall of the flexible clamping primary shaft 3e, and the outer wall of the flexible clamping secondary shaft 3f is in rolling contact with the inner ring of the ball spline bearing.
In one embodiment, a pressure sensor 3h is further arranged in the flexible clamping main shaft 3e, and the pressure sensor 3h is installed at the plugging end of the flexible clamping main shaft 3 e.
In one embodiment, a pressure spring is further arranged in the flexible clamping main shaft 3e, two ends of the pressure spring are respectively abutted against the end faces corresponding to the flexible clamping main shaft 3e and the flexible clamping auxiliary shaft 3f, the pressure spring is arranged around the pressure sensor 3h, the pressure spring provides grinding pretightening force for the corresponding valve seat 8, and the fitting degree of the valve seat 8 and the corresponding ball core is improved.
In one embodiment, the clamping unit further comprises a grinding driving device 3a, the grinding driving device 3a is arranged on the outer wall of the valve seat flexible clamping shell 3b, the grinding driving device 3a drives the corresponding extending end of the elastic grinding shaft to rotate, and the chuck 3c is connected with the flexible clamping auxiliary shaft 3f and rotates coaxially.
In one embodiment, the coupling is a universal coupling.
In one embodiment, the machine tool body is further provided with a ball core clamping and moving mechanism, the ball core clamping and moving mechanism comprises a front ball core supporting assembly and a rear ball core supporting assembly, and the front ball core supporting assembly and the rear ball core supporting assembly are respectively located on two sides of the clamping grinding area.
In one embodiment, the front core support assembly comprises a core drive device for clamping the core and driving it to rotate;
the rear ball core supporting component comprises a ball core jacking device which is used for positioning and clamping the fixed ball core 7.
Example 2:
as shown in fig. 1 to 6, the present embodiment discloses a numerical control vertical large-caliber ball core double-valve seat grinding device, which includes a machine tool body, and a clamping mechanism, a valve seat driving mechanism and a ball core clamping driving mechanism which are arranged on the machine tool body, wherein the machine tool body includes a mounting base plate 1a and a vertical seat 1b, the mounting base plate 1a is horizontally arranged, the vertical seat 1b is vertically fixed on the upper surface of the mounting base plate 1a, the upper surface of the mounting base plate 1a is also horizontally provided with a guide rail 1c, the clamping mechanism is movably arranged at the upper end of the vertical seat 1b, and the ball core clamping driving mechanism is slidably arranged on the guide rail 1 c;
the ball core clamping driving mechanism is arranged on the mounting base plate 1a and used for horizontally clamping the ball core and driving the ball core to rotate around the axis of the ball core;
the valve seat driving mechanism is connected with the clamping mechanism and used for driving the clamping mechanism to rotate so as to drive the valve seat 8 to deviate or swing relative to the vertical direction, and the rotating center line of the clamping mechanism passes through the sphere center of the sphere core.
In one embodiment, the vertical seat 1b is close to the middle of the guide rail 1c, the guide rail 1c is a double guide rail, and the ball core clamping driving mechanism can be fixed on the upper surface of the mounting base plate 1a through bolts.
In one embodiment, the upper surface of the mounting base plate 1a is further provided with a guide rail driving device 1e, the guide rail driving device 1e is a servo motor, and the ball core clamping driving mechanism is driven to move on the guide rail 1c through the guide rail driving device 1 e.
In one embodiment, the clamping mechanism comprises a rotating arm 2 and two clamping units,
in one embodiment, the valve seat driving mechanism comprises a transmission shaft 2a and a driving motor, any end of the transmission shaft 2a is fixedly connected with the middle part of the rotating arm 2 and is kept vertical, the clamping units are respectively and movably arranged at two ends of the rotating arm 2, and when the valve seat 8 is arranged on the corresponding clamping unit, the distance between the two clamping units can be adjusted to change the position of the valve seat 8;
a rotating hole horizontally penetrates through the upper end of the vertical seat 1b, the transmission shaft 2a is movably arranged in the rotating hole, and the end part of the transmission shaft 2a far away from the rotating arm 2 extends out of the rotating hole;
the driving motor is arranged on the vertical seat 1b and used for driving the transmission shaft 2a to rotate, and a clamping grinding area is formed between the two clamping units.
In one embodiment, at least one bearing is fixedly sleeved at each of two ends of the transmission shaft 2a, an outer ring of each bearing is fixedly connected with an inner wall of the rotary hole, and two ends of the transmission shaft 2a extend out of two ends of the rotary hole.
In one embodiment, the driving motor is a servo motor, and the driving motor is fixed on the vertical seat 1b and drives the transmission shaft 2a to rotate by using a belt.
In one embodiment, the clamping mechanism further includes two valve seat adjusting devices, the two valve seat adjusting devices are respectively disposed at two ends of the rotating arm 2, the clamping units are mounted on the movable ends of the corresponding valve seat adjusting devices, and the valve seat adjusting devices are configured to drive the corresponding clamping units to slide in the length direction of the rotating arm 2.
When in clamping, the two valve seats 8 are oppositely arranged at two sides of the ball core, and the central line of the valve seat 8 is vertical to the rotation axis of the ball core and is intersected at the center of the ball core;
in one embodiment, the valve seat adjusting device is a servo motor, the end portions of the rotating arms 2 are respectively provided with a sliding groove along the length direction of the rotating arms, a ball screw is arranged in each sliding groove, the valve seat adjusting device drives the corresponding ball screw to rotate, a base matched with the ball screw is further arranged in each sliding groove, when the valve seat adjusting device drives the corresponding ball screw to rotate, the base slides in the corresponding sliding groove, and the clamping unit is installed on the corresponding base.
In one embodiment, the vertical seat 1b is further provided with two limiting blocks 1d for limiting the rotation angle of the rotating arm 2, the limiting blocks 1d are located on the side face, close to the guide rail 1c, of the vertical seat 1b, the limiting blocks 1d are located on two sides of the rotating arm 2, and the limiting blocks 1d are close to the top end of the vertical seat 1 b.
In one embodiment, the clamping unit comprises a flexible clamping shell 3b of the valve seat and a chuck 3c, the flexible clamping shell 3b of the valve seat is fixedly arranged at the movable end of the valve seat adjusting device, the flexible clamping shell 3b of the valve seat is cylindrical, an elastic grinding shaft is further rotatably arranged in the flexible clamping shell 3b of the valve seat, two ends of the elastic grinding shaft extend out of the flexible clamping shell 3b of the valve seat, the chuck 3c is connected with the elastic grinding shaft through a coupler, and the chuck 3c is used for clamping and fixing the valve seat 8.
In one embodiment, the coupling is a universal coupling, and the chuck 3c is connected to the resilient grinding shaft by a universal coupling.
In one embodiment, the chuck 3c is further provided with a limiting disc, the limiting disc is sucked on the limiting disc by a dial indicator, the limiting disc is rotated to check whether the center of the ball core is at the rotation center of the limiting disc, and if the center of the ball core is not at the rotation center, the ball core clamping driving mechanism is adjusted by the guide rail driving device 1e to complete the adjustment of the ball core clamping driving mechanism.
In one embodiment, the elastic grinding shaft comprises a flexible clamping main shaft 3e and a flexible clamping auxiliary shaft 3f, the flexible clamping main shaft 3e is of a hollow tubular structure, two ends of the flexible clamping main shaft 3e are respectively and fixedly sleeved with at least one bearing, the outer ring of each bearing is fixedly connected with the inner wall of a valve seat flexible clamping shell 3b, two ends of the flexible clamping main shaft 3e extend out of the valve seat flexible clamping shell 3b, one end of the flexible clamping main shaft 3e is blocked, the flexible clamping auxiliary shaft 3f is movably inserted into the other end of the flexible clamping main shaft 3e through a ball spline bearing, the outer wall of the ball spline bearing is fixedly connected with the inner wall of the flexible clamping main shaft 3e, and the outer wall of the flexible clamping auxiliary shaft 3f is in rolling contact with the inner ring of the ball spline bearing;
the flat key of the flexible clamping auxiliary shaft 3f is arranged in the flexible clamping main shaft 3e and keeps radial fixation, a pressure spring is further arranged between the insertion end of the flexible clamping auxiliary shaft 3f and the plugging end of the flexible clamping main shaft 3e, the pressure spring provides grinding pretightening force for the corresponding valve seat 8, and the fitting degree of the valve seat 8 and the corresponding ball core is improved.
In one embodiment, a pressure sensor 3h is further arranged between the flexible clamping auxiliary shaft 3f and the flexible clamping main shaft 3e, when the valve seat 8 contacts the ball core, pressure is transmitted to the pressure sensor 3h, the pressure sensor 3h feeds collected data back to the control system through a line or a wireless mode, the collected data are displayed on the control screen in real time, pressure values provided by the two pressure sensors 3h are compared, if the pressure values are different, the position of the valve seat is adjusted through the valve seat adjusting device, and the grinding effect of the valve seat is ensured to be the same.
In one embodiment, the clamping unit further comprises a grinding driving device 3a, the grinding driving device 3a is arranged on the outer wall of the valve seat flexible clamping shell 3b, the grinding driving device 3a is used for driving the corresponding flexible clamping main shaft 3e to rotate, and the chuck 3c is connected with the flexible clamping auxiliary shaft 3f and coaxially rotates.
In one embodiment, the grinding driving device 3a is a variable frequency motor, a torque sensor 3g is further arranged on an output shaft of the grinding driving device 3a, when the torque sensor 3g is used for lapping the surface of the valve seat 8 and the surface of the ball core, required torque is provided by the grinding driving device 3a through the torque sensor 3g, the torque sensor 3g feeds collected data back to a control system through a data line or in a wireless mode, the data are displayed on a control screen in real time, the torque values of the two clamping units are compared, if the torque values are different, the position of the valve seat 8 is adjusted through a valve seat adjusting device, the torque values of the two clamping units are consistent, and the grinding effect of the two valve seats 8 is guaranteed to be the same.
In one embodiment, the ball core clamping driving mechanism comprises a front supporting assembly and a rear supporting assembly which are used for driving and clamping the ball core to rotate, a sliding plate 1f is arranged on the guide rail 1c in a sliding mode, the front supporting assembly and the rear supporting assembly are arranged on the sliding plate 1f in a sliding mode, the front supporting assembly and the rear supporting assembly are respectively located on two sides of the clamping grinding area, two ends of the ball core are respectively clamped between the front supporting assembly and the rear supporting assembly, the guide rail driving device 1e is used for driving the sliding plate 1f to move to a corresponding position to be fixed, and the front supporting assembly and the rear supporting assembly can be fixed on the sliding plate 1f through bolts.
In one embodiment, the front support assembly comprises a front support seat 4a, a front headstock 4b, a hollow rotating shaft 4c, a rotating sleeve 4d, a ball core driving device and a fixed center 4e, wherein the front support seat 4a is slidably arranged on the guide rail 1c, the front headstock 4b is fixed at the upper end of the front support seat 4a, the rotating sleeve 4d is horizontally and fixedly arranged on the front headstock 4b, two ends of the hollow rotating shaft 4c are respectively and fixedly sleeved with at least one bearing, the outer ring of each bearing is fixedly connected with the inner wall of the rotating sleeve 4d, two ends of the hollow rotating shaft 4c extend out of the rotating sleeve 4d, the fixed center 4e is inserted on the hollow rotating shaft 4c, and the fixed center 4e faces the clamping and grinding area;
the ball core driving device is installed on the outer wall of the rotating sleeve 4d, and is used for driving the hollow rotating shaft 4c to rotate and driving the ball core to rotate.
In one embodiment, the rear supporting assembly comprises a rear supporting seat 5a, a rear headstock 5b, a hollow adjusting shaft 5c, an adjusting sleeve 5d, a pushing device 6 and a tailstock centre 5e, wherein the rear supporting seat 5a is slidably arranged on the guide rail 1c, the rear headstock 5b is fixedly arranged at the upper end of the rear supporting seat 5a, the adjusting sleeve 5d is horizontally and fixedly arranged on the rear headstock 5b, two ends of the hollow adjusting shaft 5c are respectively and fixedly sleeved with at least one bearing, the outer ring of each bearing is fixedly connected with the inner wall of the adjusting sleeve 5d, two ends of the hollow adjusting shaft 5c extend out of the adjusting sleeve 5d, the tailstock centre 5e is movably inserted in the hollow adjusting shaft 5c, and the tailstock centre 5e faces the clamping and grinding area;
the pushing device 6 is arranged on the outer wall of the adjusting sleeve 5d, and the pushing device 6 is used for driving the tailstock center 5e to slide in the hollow adjusting shaft 5 c.
In one embodiment, the pushing device 6 is a hydraulic cylinder, which can be used to clamp the ball core when the fixed ball core 7 with the ball handle is mounted.
The beneficial effect who adopts this embodiment is, can utilize fixture to make disk seat 8 in the grinding process, also can be in good time swing, further improve grinding effect, simultaneously when facing heavy-calibre ball core, can not because the too big safety problem that appears of ball core gravity to can the fixed ball core 7 of match area ball handle, improve equipment's adaptability and stability.
When the device is used, according to the size of a fixed ball core 7, a front supporting assembly and a rear supporting assembly are moved to corresponding positions, the ball core is fixed by a bolt, the ball core is hung to an installation position by a crane, a hydraulic device pushes a tailstock center 5e to tightly abut against the fixed ball core 7, a dial indicator is sucked on a limiting disc, the limiting disc is rotated to check whether the center of the fixed ball core 7 with a ball handle is at the rotation center of the limiting disc, if the center is not at the center, a ball core clamping driving mechanism is adjusted by a guide rail driving device 1e, adjustment of the ball core clamping driving mechanism is completed, a chuck 3c is adjusted to the corresponding position according to the caliber size of a valve seat 8, clamping of the valve seat 8 is completed, the position of the valve seat 8 is adjusted by a grinding driving device 3a, data is obtained by a pressure sensor 3h, the pressure value of the corresponding valve seat 8 on a display screen is observed, the pressure value of the corresponding valve seat 8 is adjusted until the upper pressure and the lower pressure are the same, the rotating speed of the valve seat 8, the rotating speed of the ball core, the swinging angle of a rotating arm 2, the parameters such as grinding time, equipment is started, the torque value of an upper torque sensor 3g and the upper torque sensor and the lower torque sensor is observed, if the torque sensor is larger, the torque sensor is adjusted, the difference is larger, the valve seat is adjusted, and the grinding is consistent when the grinding is finished.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A double-seat rocking grinding apparatus comprising:
a machine tool body;
the clamping mechanism is used for mounting the valve seat;
the valve seat driving mechanism is used for driving the clamping mechanism to rotate;
the machine tool body is used for installing the clamping mechanism and the valve seat driving mechanism;
the clamping mechanism is movably arranged on the machine tool body and comprises two clamping units, a grinding area is formed between the two clamping units, the valve seat driving mechanism is arranged on the machine tool body, and the valve seat driving mechanism drives the two clamping units to swing around the grinding area.
2. A double seat rocking milling apparatus as defined in claim 1 wherein: the clamping mechanism comprises a rotating arm (2), the center of the rotating arm (2) is rotatably arranged on the machine tool body, and the valve seat driving mechanism is used for driving the rotating arm (2) to swing;
two the centre gripping unit activity respectively sets up the both ends of swinging boom (2), the slip direction of centre gripping unit with the length direction of swinging boom (2) is unanimous, and two it grinds the region to form the centre gripping between the centre gripping unit.
3. The double seat rocking grinding apparatus of claim 2, wherein: the lathe body includes the seat (1 b) that stands of vertical setting, the upper end of standing seat (1 b) still is equipped with two and is used for spacingly swinging boom (2) rotation angle's stopper (1 d), stopper (1 d) are located stand seat (1 b) is close to the side of guide rail (1 c), stopper (1 d) are located the both sides of swinging boom (2).
4. The double seat rocking grinding apparatus of claim 3, wherein: still be equipped with two disk seat adjusting device on the swinging boom (2), disk seat adjusting device sets up respectively the both ends of swinging boom (2), disk seat adjusting device with the centre gripping unit one-to-one, the disk seat adjusting device drive corresponds the centre gripping unit is in slide on the length direction of swinging boom (2).
5. The double seat rocking grinding apparatus of claim 4, wherein: the centre gripping unit includes flexible centre gripping shell of disk seat (3 b) and chuck (3 c), the fixed setting of flexible centre gripping shell of disk seat (3 b) is in disk seat adjusting device's expansion end, flexible centre gripping shell of disk seat (3 b) is cylindric, it grinds the axle still to rotatably mounted elasticity in the flexible centre gripping shell of disk seat (3 b), the both ends that the axle was ground to elasticity are stretched out flexible centre gripping shell of disk seat (3 b), chuck (3 c) through the shaft coupling with elasticity is ground the hub connection.
6. The double seat rocking grinding apparatus of claim 5, wherein: the elastic grinding shaft comprises a flexible clamping main shaft (3 e) and a flexible clamping auxiliary shaft (3 f), the flexible clamping main shaft (3 e) is of a hollow tubular structure, two ends of the flexible clamping main shaft (3 e) are respectively and fixedly sleeved with at least one bearing, the outer ring of each bearing is fixedly connected with the inner wall of the valve seat flexible clamping shell (3 b), two ends of the flexible clamping main shaft (3 e) extend out of the valve seat flexible clamping shell (3 b), one end of the flexible clamping main shaft (3 e) is blocked, and the flexible clamping auxiliary shaft (3 f) is movably inserted into the other end of the flexible clamping main shaft (3 e);
the flexible clamping auxiliary shaft (3 f) is arranged in the flexible clamping main shaft (3 e) in a flat key mode.
7. The double seat rocking grinding apparatus of claim 6, wherein: still be equipped with pressure sensor (3 h) in flexible centre gripping main shaft (3 e), pressure sensor (3 h) are installed the shutoff end of flexible centre gripping main shaft (3 e).
8. The double seat rocking grinding apparatus of claim 7, wherein: a pressure spring is further arranged in the flexible clamping main shaft (3 e), two ends of the pressure spring are respectively abutted to the end faces corresponding to the flexible clamping main shaft (3 e) and the flexible clamping auxiliary shaft (3 f), and the pressure spring is arranged around the pressure sensor (3 h).
9. The double seat rocking grinding apparatus of claim 8, wherein: the clamping unit further comprises a grinding driving device (3 a), the grinding driving device (3 a) is arranged on the outer wall of the valve seat flexible clamping shell (3 b), the grinding driving device (3 a) drives the extending end corresponding to the elastic grinding shaft to rotate, and the chuck (3 c) is connected with the flexible clamping auxiliary shaft (3 f) and rotates coaxially.
10. The double seat rocking grinding apparatus of claim 9, wherein: the coupler is a universal coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222863300.5U CN218837166U (en) | 2022-10-28 | 2022-10-28 | Double-valve-seat swinging grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222863300.5U CN218837166U (en) | 2022-10-28 | 2022-10-28 | Double-valve-seat swinging grinding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218837166U true CN218837166U (en) | 2023-04-11 |
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| CN202222863300.5U Active CN218837166U (en) | 2022-10-28 | 2022-10-28 | Double-valve-seat swinging grinding equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139910A (en) * | 2020-10-28 | 2020-12-29 | 重庆川仪调节阀有限公司 | Valve seat grinding and clamping device |
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2022
- 2022-10-28 CN CN202222863300.5U patent/CN218837166U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139910A (en) * | 2020-10-28 | 2020-12-29 | 重庆川仪调节阀有限公司 | Valve seat grinding and clamping device |
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