CN215092930U - High-precision valve grinder grinding wheel frame component - Google Patents
High-precision valve grinder grinding wheel frame component Download PDFInfo
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- CN215092930U CN215092930U CN202120726035.9U CN202120726035U CN215092930U CN 215092930 U CN215092930 U CN 215092930U CN 202120726035 U CN202120726035 U CN 202120726035U CN 215092930 U CN215092930 U CN 215092930U
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Abstract
The utility model discloses a high-accuracy valve grinder emery wheel frame subassembly, including emery wheel axle subassembly and trimming shaft subassembly, balanced head and signal acceptor that links to each other with the signal line have been linked firmly respectively in emery wheel axle front and back end hole, signal acceptor and signal transmitter wireless connection, be equipped with vibration sensor on the emery wheel axle subassembly, be equipped with the sound wave sensor and the signal transmitter that link to each other with the connector in the emery wheel trimming shaft hole, signal transmitter and signal transmitter wireless connection, the emery wheel axle subassembly passes through feeding device and feed gear supporting on the emery wheel frame base, be equipped with the grating chi in feeding device, the trimming shaft subassembly is through the supporting of trimming support on the emery wheel frame base. Adopt the utility model discloses a high-accuracy valve grinder grinding wheel frame subassembly can not only satisfy the accurate grinding requirement to the valve conical surface, can maintain the dynamic balance precision for a long time moreover to can automatic monitoring emery wheel finishing quality, can guarantee the emery wheel electricity main shaft simultaneously and maintain the stability and the reliability of electricity main shaft installation.
Description
Technical Field
The utility model relates to a grinding machine especially relates to an engine valve conical surface grinding machining is with improvement of grinding wheel carrier subassembly of grinding machine.
Background
The grinding wheel frame assembly is an important part of a grinding machine and generally comprises a grinding wheel spindle, a feed device, a feeding device and a grinding wheel dressing device, a grinding wheel for grinding a valve is arranged on a rotating grinding wheel spindle, the grinding wheel spindle rotating at a high speed needs dynamic balance to ensure the stability of the operation process, the balance precision state of the grinding wheel spindle is difficult to maintain continuously due to factors such as abrasion in the using process of the grinding wheel, the stability of the operation is difficult to ensure, unstable hidden danger is brought to the grinding quality of a high-precision valve grinding machine, the grinding wheel spindle assembly needs to be subjected to dynamic balance operation frequently in order to ensure the grinding quality, the working efficiency of the grinding machine is influenced on one hand, and on the other hand, the time when the dynamic balance operation is needed is difficult to grasp accurately; for a grinding wheel spindle using an electric spindle, the mounting stability and reliability of the grinding wheel electric spindle are also factors influencing the grinding quality, generally, the grinding wheel electric spindle is mounted on a grinding wheel electric spindle mounting seat, the mounting precision of the grinding wheel electric spindle is ensured through the matching precision of a grinding wheel electric spindle casing and an electric spindle mounting hole on the grinding wheel electric spindle mounting seat, a matching gap always exists between the grinding wheel electric spindle casing and the electric spindle mounting hole, the grinding wheel electric spindle is in an unstable position state due to the gap, and for a high-precision valve grinder, the grinding wheel electric spindle is one of the factors influencing the running precision of the grinding wheel spindle; the dressing process of the grinding wheel is carried out by relative motion of the grinding wheel dresser and the grinding wheel, in a precise valve grinding machine, the grinding wheel dresser mostly adopts a rotating grinding wheel to dress a disc, the grinding wheel dressing disc is arranged on a dressing electric spindle, and the rotating grinding wheel is used for dressing the grinding working surface of the rotating grinding wheel; generally, the dressing progress of the grinding wheel and the dressing quality of the grinding wheel are determined by manual observation, which requires a certain experience of an operator, and accordingly, the dressing quality of the grinding wheel cannot be guaranteed, which is unacceptable for a high-precision valve grinder; in addition, a dressing electric spindle for driving a grinding wheel dressing disk is mounted on a dressing electric spindle mounting seat, the mounting accuracy of the dressing electric spindle is ensured by the matching accuracy of a dressing electric spindle casing and an electric spindle mounting hole on the dressing electric spindle mounting seat, a matching gap always exists between the dressing electric spindle casing and the electric spindle mounting hole, the dressing electric spindle is in an unstable position state due to the gap, and the dressing electric spindle is one of factors influencing the grinding wheel dressing quality and further influencing the grinding quality for a high-precision valve grinder.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high-accuracy valve grinder grinding wheel frame subassembly is provided to the aforesaid that exists to prior art is not enough, the utility model aims to solve, it can not only satisfy the precision grinding processing requirement to the valve conical surface, can maintain the dynamic balance precision for a long time moreover to ability automatic monitoring emery wheel trimming quality, the stability and the reliability of emery wheel electricity main shaft and the installation of maintaining electricity main shaft can be guaranteed simultaneously.
In order to solve the technical problem, the utility model discloses a high-precision valve grinder grinding wheel frame assembly, including grinding wheel axle subassembly, trim axle subassembly and grinding wheel carrier base, the emery wheel axle in the grinding wheel axle subassembly is established as an organic whole with the rotor of emery wheel electricity main shaft and is supported on emery wheel electricity main shaft casing through the bearing rotation, install emery wheel mounting flange at the emery wheel axle front end, the emery wheel axle is the hollow shaft, link firmly the balance head in the hole of emery wheel axle front end, the mounted position of this balance flange head corresponds with the position of emery wheel, and the balance head is located the outside of emery wheel axle support bearing, emery wheel electricity main shaft casing is passed to the emery wheel axle rear end, install the signal receiver at the emery wheel axle rear end, the signal receiver is through wearing to locate signal data line in the emery wheel axle hole and balance head electric connection, it has the receiver guard shield to link firmly at emery wheel electricity main shaft casing rear end, a signal emitter is fixedly connected in the receiver protective cover, the signal emitter is connected with the signal receiver through a wireless signal, and a vibration sensor is arranged on the grinding wheel electric spindle; the grinding wheel electric spindle shell is fixedly connected to the grinding wheel electric spindle seat, a clamping groove is axially formed in the hole wall of one side of a grinding wheel electric spindle mounting hole in the grinding wheel electric spindle seat, and the hole walls of the two sides of the clamping groove are tightly connected through clamping screws; the grinding wheel electric spindle seat is fixedly connected to the upper sliding table, the upper sliding table is supported on an upper sliding table seat in a sliding mode through a feeding linear guide rail pair, a feeding driving device is arranged between the upper sliding table and the upper sliding table seat, a grating ruler is further arranged between the upper sliding table and the upper sliding table seat, the upper sliding table seat is fixedly connected to the lower sliding table, the lower sliding table is supported on a grinding carriage base in a sliding mode through a feed linear guide rail pair, a feed driving device is arranged between the lower sliding table and the grinding carriage base, and the length direction of a guide rail in the feed linear guide rail pair is crossed with the length direction space of the guide rail in the feed linear guide rail pair; the trimming shaft assembly comprises a grinding wheel trimming shaft and a trimming disc mounting flange which is arranged at the front end of the grinding wheel trimming shaft and used for mounting a grinding wheel trimming disc, the grinding wheel trimming shaft and a rotor of the trimming electric spindle are integrated and are rotatably supported on a shell of the trimming electric spindle through a bearing, the grinding wheel trimming shaft is a hollow shaft, a sound wave sensor is arranged in an inner hole at the position of the trimming disc mounting flange at the front end of the grinding wheel trimming shaft, a signal transmitter is arranged in an inner hole at the rear end of the grinding wheel trimming shaft and is spliced with the sound wave sensor through a connector penetrating through the inner hole of the grinding wheel trimming shaft, a rear cover is arranged at the rear end of the shell of the trimming electric spindle, a signal transmitter is arranged in the rear cover, and the signal transmitter is connected with the signal transmitter through a wireless signal; the trimming electric spindle is fixedly connected to the trimming support through the trimming electric spindle seat, a clamping groove is axially formed in the hole wall of one side of a trimming electric spindle mounting hole in the trimming electric spindle seat, the hole walls of two sides of the clamping groove are connected in a clamping mode through fastening screws, and the trimming support is fixedly connected to the grinding carriage base; and the axis of the grinding wheel trimming shaft is parallel to the length direction of the guide rail in the feed linear guide rail pair.
In the structure, the grinding wheel shaft in the grinding wheel shaft component and the rotor of the grinding wheel electric spindle are integrated and are rotatably supported on a grinding wheel electric spindle casing through a bearing, the front end of the grinding wheel shaft is provided with a grinding wheel mounting flange, the grinding wheel shaft is a hollow shaft, a balance head is fixedly connected in an inner hole at the front end of the grinding wheel shaft, the mounting position of the balance head corresponds to the position of the grinding wheel mounting flange, the balance head is positioned on the outer side of the grinding wheel shaft supporting bearing, the rear end of the grinding wheel shaft penetrates through the grinding wheel electric spindle casing, the rear end of the grinding wheel shaft is provided with a signal receiver, the signal receiver is electrically connected with the balance head through a signal data line penetrating through the inner hole of the grinding wheel shaft, the rear end of the grinding wheel electric spindle casing is fixedly connected with a receiver shield, a signal transmitter is fixedly connected in the receiver shield, the signal transmitter is connected with the signal receiver through a wireless signal, and a vibration sensor is arranged on the grinding wheel electric spindle, the grinding wheel electric spindle shell is fixedly connected to a grinding wheel electric spindle seat, a clamping groove is axially formed in the hole wall on one side of a grinding wheel electric spindle mounting hole in the grinding wheel electric spindle seat, the hole walls on the two sides of the clamping groove are fixedly connected through a clamping screw, a grinding wheel shaft serving as one part of the grinding wheel electric spindle is directly driven by electric power, a balance head fixedly connected in an inner hole in the front end of the grinding wheel shaft can perform online dynamic balance on the grinding wheel shaft serving as an electric spindle rotor at any time, when vibration is generated due to unbalance in the rotation process of the grinding wheel shaft, a vibration signal generated due to unbalance of the grinding wheel shaft is timely detected by a vibration sensor and is transmitted to a control system of a grinding machine through a cable, a control instruction for the balance head is obtained after analysis by the control system, and the control instruction for the balance head is transmitted to a signal transmitter fixedly arranged on a receiver shield through the cable by the control system, the control instruction is sent to the signal receiver rotating along with the grinding wheel spindle through a wireless signal, the signal receiver is transmitted to the balance head through a signal data line, so that the balance head in the rotating motion can smoothly receive the control instruction, the balance head immediately compensates the unbalance amount according to the control instruction until the grinding wheel spindle is in a balanced state and stably runs, the dynamic balance precision of the grinding wheel spindle can be maintained for a long time, the balance state of the grinding wheel can be optimal due to the fact that the mounting position of the balance head corresponds to the mounting position of a mounting flange of the grinding wheel, the grinding wheel spindle is constantly in the dynamic balance state and stably runs, and the requirement on high-precision grinding quality can be guaranteed; the size of the grinding wheel electric spindle mounting hole on the grinding wheel electric spindle seat can be processed to the precision of zero clearance fit with the grinding wheel electric spindle casing, a clamping groove is formed in the hole wall of one side of the grinding wheel electric spindle mounting hole in the axial direction, so that the grinding wheel electric spindle mounting hole can be opened along the clamping groove, smooth insertion and installation of the grinding wheel electric spindle are facilitated, insertion and assembly resistance caused by zero clearance fit between the grinding wheel electric spindle mounting hole and the grinding wheel electric spindle casing cannot be generated in the installation process, the grinding wheel electric spindle cannot be damaged, the hole wall of the grinding wheel electric spindle mounting hole clamps and fixedly connects the grinding wheel electric spindle casing through a clamping screw after smooth installation, no fit clearance exists between the grinding wheel electric spindle mounting hole and the grinding wheel electric spindle casing, the fit precision is high, and the stability and the reliability of the grinding wheel electric spindle installation are guaranteed.
The grinding wheel electric spindle seat is fixedly connected on the upper sliding table, the upper sliding table is supported on the upper sliding table seat in a sliding manner through the feeding linear guide rail pair, the feeding driving device is arranged between the upper sliding table and the upper sliding table seat, the grating ruler is also arranged between the upper sliding table and the upper sliding table seat, the upper sliding table seat is fixedly connected on the lower sliding table, the lower sliding table is supported on the grinding wheel frame base in a sliding manner through the feeding linear guide rail pair, the feed driving device is arranged between the lower sliding table and the grinding wheel frame base, the length direction of the guide rail in the feeding linear guide rail pair is crossed with the length direction space of the guide rail in the feeding linear guide rail pair, the feeding amount of the upper sliding table can be accurately detected through the grating ruler arranged between the upper sliding table and the upper sliding table seat, the grinding precision of the valve cone surface is ensured, the length direction of the guide rail in the feeding linear guide rail pair is crossed with the length direction space of the guide rail in the feeding linear guide rail pair, so that the feeding direction of the grinding wheel forms a proper angle with the feeding direction, the angle of the grinding wheel can correspond to the cone angle of the valve conical surface and the angle between the generatrix of the grinding surface of the grinding wheel and the axis of the grinding wheel, so that the grinding requirement of the valve conical surface is better met.
The trimming shaft assembly comprises a grinding wheel trimming shaft and a trimming disc mounting flange which is arranged at the front end of the grinding wheel trimming shaft and used for mounting a grinding wheel trimming disc, the grinding wheel trimming shaft and a rotor of the trimming electric spindle are integrated and are rotatably supported on a shell of the trimming electric spindle through a bearing, the grinding wheel trimming shaft is a hollow shaft, a sound wave sensor is arranged in an inner hole at the position of the trimming disc mounting flange at the front end of the grinding wheel trimming shaft, a signal transmitter is arranged in an inner hole at the rear end of the grinding wheel trimming shaft and is spliced with the sound wave sensor through a connector penetrating through the inner hole of the grinding wheel trimming shaft, a rear cover is arranged at the rear end of the shell of the trimming electric spindle, a signal transmitter is arranged in the rear cover, and the signal transmitter is connected with the signal transmitter through a wireless signal; the trimming electric spindle is fixedly connected to the trimming support through the trimming electric spindle seat, a clamping opening is axially formed in the hole wall on one side of a trimming electric spindle mounting hole in the trimming electric spindle seat, the hole walls on the two sides of the clamping opening are connected in a clamping mode through fastening screws, the trimming support is fixedly connected to the grinding wheel frame base, the axis of the grinding wheel trimming shaft is parallel to the length direction of a guide rail in the feed linear guide rail pair, the grinding wheel trimming shaft is directly driven by electric power as a part of the trimming electric spindle, a sound wave sensor arranged in an inner hole at the front end of the grinding wheel trimming shaft at the position of a trimming disc mounting flange can sense sound wave signals in the operation process of the grinding wheel trimming disc at any time, sense different sound wave signals when the grinding wheel trimming disc is in idle operation and in the trimming process, and sense different sound wave signals when the initial grinding wheel working surface is in a concave-convex-concave-convex state in the trimming process and when the finished grinding wheel working surface is in a flat state, the sensed sound wave signal is transmitted to a signal transmitter which rotates along with the grinding wheel dressing shaft together with the sound wave sensor through a connector, then the signal transmitter is transmitted to a signal transmitter fixedly arranged on the rear cover in a wireless transmission mode, and the signal transmitter is transmitted to a control system of the grinding machine through a cable, so that the sound wave sensor in rotary motion can smoothly transmit the sensed sound wave signal to the control system of the grinding machine, the control system of the grinding machine can accurately master the dressing process of the grinding wheel according to the obtained sound wave signal, the grinding wheel dressing work is timely finished after the sound wave signal after the grinding wheel working surface is dressed and leveled is obtained, the automation degree is high, the grinding wheel dressing quality is guaranteed, and the working efficiency is improved. The size of the trimming electric spindle mounting hole on the trimming electric spindle seat can be processed to the precision of no-clearance fit with the trimming electric spindle casing, a clamping groove is formed in the hole wall of one side of the trimming electric spindle mounting hole along the axial direction, so that the trimming electric spindle mounting hole can be opened along the clamping groove, the smooth insertion and installation of the trimming electric spindle is facilitated, the insertion and assembly resistance caused by the no-clearance fit between the trimming electric spindle mounting hole and the trimming electric spindle casing cannot be generated in the installation process, the hole wall of the trimming electric spindle mounting hole clamps and fixedly connects the trimming electric spindle casing through a fastening screw after the smooth installation, no fit clearance exists between the trimming electric spindle mounting hole and the trimming electric spindle casing, the fit precision is high, and the stability and the reliability of the trimming electric spindle installation are guaranteed.
The utility model discloses a preferred embodiment, the guide rail that feeds linear guide is vice installs in the bottom of last slip table, and the slider that feeds linear guide is vice is installed on last slip table seat. By adopting the embodiment, the guide rail of the feeding linear guide rail pair is under the shielding protection of the upper sliding table, so that the damage to the feeding linear guide rail pair caused by the adhesion of dirt such as dust and impurities on the guide rail can be greatly reduced, and the workload of maintenance is also reduced.
The utility model discloses a another kind of preferred embodiment, the guide rail of feed linear guide is vice is installed in the bottom of slip table down, and the vice slider of feed linear guide is installed on the grinding carriage base. By adopting the embodiment, the guide rail of the feeding linear guide rail pair is under the covering protection of the lower sliding table, so that the possible damage to the feeding linear guide rail pair caused by the adhesion of dirt such as dust and impurities on the guide rail can be greatly reduced, and the workload of maintenance is also reduced.
In another preferred embodiment of the present invention, the feeding driving device is a ball screw nut pair driven by a servo motor. By adopting the embodiment, the upper sliding table is high in movement precision and sensitive in movement.
The utility model discloses further preferred embodiment, feed drive arrangement is servo motor driven ball screw nut pair. By adopting the embodiment, the lower sliding table has high motion precision and sensitive action.
In another preferred embodiment of the present invention, the balance head is a motor-driven mechanical balance head. By adopting the embodiment, two balance blocks are arranged in the balance head, the balance blocks are driven by a balance motor in the balance head, the power of the balance motor is transmitted to the signal receiver through the signal transmitter by utilizing a wireless transmission technology, and then is transmitted to the balance motor through a lead penetrating through the inner hole of the grinding wheel electric spindle, and the balance motor is controlled by a control instruction transmitted through the signal transmitter and the signal receiver to operate, so that the balance blocks move and the position is adjusted to realize dynamic balance operation.
The utility model discloses still further preferred embodiment, signal transmitter's mounted position is relative with signal receiver's mounted position, and the interval T between signal transmitter and the signal receiver is 0.5 ~ 2 millimeters. By adopting the embodiment, the accurate realization of signal transmission between the signal emitter and the signal receiver can be ensured.
In a further preferred embodiment of the present invention, the vibration sensor is mounted on the grinding wheel electric spindle housing. By adopting the embodiment, the vibration sensor can directly sense the vibration condition of the electric spindle of the grinding wheel, and the reaction is rapid.
The utility model discloses another further preferred embodiment, signal transmission ware's mounted position is relative with signal transmission ware's mounted position, signal transmission ware with interval L between the signal transmission ware is 0.5 ~ 1.5 millimeters. By adopting the embodiment, the accurate realization of the signal transmission between the signal transmitter and the signal transmitter can be ensured.
In a further preferred embodiment of the present invention, the angle between the projections of the guide rail in the feeding linear guide pair and the guide rail in the feeding linear guide pair on the horizontal plane is between 60 ° and 90 °. By adopting the embodiment, the grinding requirement of the conventional valve conical surface with different cone angles can be well met.
Drawings
The grinding wheel carrier assembly of the high precision valve grinding machine of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of one embodiment of a grinding wheel carriage assembly of the high-precision valve grinding machine of the present invention;
FIG. 2 is a top view of the structure shown in FIG. 1;
FIG. 3 is a cross-sectional view in the axial direction of the grinding wheel spindle in the structure shown in FIG. 2;
FIG. 4 is a cross-sectional view of a lower ramp portion of the structure shown in FIG. 2;
FIG. 5 is a schematic illustration of the construction of the grinding wheel spindle assembly of the construction of FIG. 1;
FIG. 6 is a schematic cross-sectional view of the structure of FIG. 5 taken along the axis of the grinding wheel spindle;
FIG. 7 is a cross-sectional view of the structure of FIG. 6 at the location of the grinding wheel electric spindle base;
FIG. 8 is a schematic structural view of a dresser shaft assembly of the structure of FIG. 1;
FIG. 9 is a schematic cross-sectional view of the structure of FIG. 8 taken along the axial direction of the truing electric spindle;
fig. 10 is a cross-sectional view of the structure of fig. 9 in the region of the electric spindle base being trimmed.
In the figure: 1-a grinding wheel frame base, 2-a lower sliding table, 3-a grinding wheel shaft assembly, 4-a finishing shaft assembly, 5-an upper sliding table base, 6-an upper sliding table, 7-a grating ruler, 8-a feeding linear guide rail pair, 9-a feeding driving device, 10-a feeding linear guide rail pair and 11-a feeding driving device;
301-grinding wheel spindle, 302-grinding wheel mounting flange, 303-vibration sensor, 304-grinding wheel electric spindle seat, 305-clamping screw, 306-clamping groove, 307-mounting fixing hole, 308-grinding wheel electric spindle, 309-receiver shield, 310-balance head, 311-bearing, 312-signal data line, 313-grinding wheel electric spindle casing, 314-signal receiver and 315-signal transmitter;
401-trimming support, 402-grinding wheel trimming shaft, 403-trimming disk mounting flange, 404-trimming electric spindle seat, 405-fastening screw, 406-clamping split, 407-trimming electric spindle, 408-rear cover, 409-acoustic wave sensor, 410-connector, 411-signal transmitter and 412-signal transmitter.
Detailed Description
In the grinding wheel head assembly of the high-precision valve grinder shown in fig. 1 and 2, the grinding wheel head base 1 is a support member for the grinding spindle assembly 3, the dresser spindle assembly 4, and the like. Wherein, the grinding wheel spindle assembly 3 is supported on an upper sliding table 6, referring to fig. 3, the upper sliding table 6 is supported on an upper sliding table base 5 in a sliding way through a feeding linear guide rail pair 8, as a preferred embodiment, a guide rail of the feeding linear guide rail pair 8 is arranged at the bottom of the upper sliding table 6, and a slide block of the feeding linear guide rail pair 8 is arranged on the upper sliding table base 5; a feeding driving device 9 is arranged between the upper sliding table 6 and the upper sliding table base 5, and the feeding driving device 9 is a ball screw nut pair driven by a servo motor as a preferred embodiment; still be equipped with grating chi 7 between last slip table 6 and last slip table seat 5, go up slip table seat 5 and link firmly on slip table 2 down. Referring to fig. 4, the lower sliding table 2 is slidably supported on the grinding carriage base 1 through a feeding linear guide rail pair 10, as a preferred embodiment, a guide rail of the feeding linear guide rail pair 10 is installed at the bottom of the lower sliding table 2, and a sliding block of the feeding linear guide rail pair 10 is installed on the grinding carriage base 1; a feed driving device 11 is arranged between the lower sliding table 2 and the grinding carriage base 1, and as a preferred embodiment, the feed driving device 11 is a ball screw nut pair driven by a servo motor; the length direction of the guide rail in the feeding linear guide rail pair 10 and the length direction space of the guide rail in the feeding linear guide rail pair 8 are crossed, and the projection included angle of the guide rail in the feeding linear guide rail pair 10 and the guide rail in the feeding linear guide rail pair 8 on the horizontal plane is preferably 60-90 degrees.
As shown in fig. 5 and 6, the grinding spindle 301 and the rotor of the grinding spindle 308 in the grinding spindle assembly 3 are integrated and rotatably supported on a grinding spindle housing 313 through a bearing 311, a grinding wheel mounting flange 302 is mounted on the front end of the grinding spindle 301 through a matching conical surface, a grinding wheel for grinding is mounted on the grinding wheel mounting flange 302, the grinding spindle 301 is a hollow spindle, a balance head 310 is fixedly connected in an inner hole at the front end of the grinding spindle 301, the mounting position of the balance head 310 corresponds to the position of the grinding wheel mounting flange 302, the balance head 310 is located outside the bearing 311 for supporting the grinding spindle 301, the balance head 310 preferably adopts a motor-driven mechanical balance head, the rear end of the grinding spindle 301 passes through the grinding spindle housing 313, a signal receiver 314 is mounted at the rear end of the grinding spindle 301, the signal receiver 314 is electrically connected with the balance head 310 through a signal data line 312 penetrating in the inner hole of the grinding spindle 301, a receiver shield 309 is fixedly connected to the rear end of the grinding wheel electric spindle casing 313, a signal emitter 315 is fixedly connected to the inside of the receiver shield 309, the signal emitter 315 is connected with a signal receiver 314 through a wireless signal, the installation position of the signal emitter 315 is opposite to that of the signal receiver 314, the distance T between the signal emitter 315 and the signal receiver 314 is 0.5-2 mm, and the balance head 310, the signal receiver 314 and the signal emitter 315 can all adopt professional products sold by related enterprises on the market; the vibration sensor 303 is mounted on the grinding wheel electric spindle 308, the vibration sensor 303 is a commercially available part, preferably a product provided by a supplier of the balance head 310, and the vibration sensor 303 is preferably mounted on the grinding wheel electric spindle casing 313, but may be mounted on other components fixedly connected with the grinding wheel electric spindle 308. The grinding wheel electric spindle 308 is fixedly connected to the grinding wheel electric spindle base 304 through a grinding wheel electric spindle housing 313, referring to fig. 7, the periphery of the grinding wheel electric spindle housing 313 of the grinding wheel electric spindle 308 is inserted into a grinding wheel electric spindle mounting hole on the grinding wheel electric spindle base 304, a clamping groove 306 is axially formed in the hole wall of one side of the grinding wheel electric spindle mounting hole on the grinding wheel electric spindle base 304, the axis of the grinding wheel electric spindle mounting hole is located on the central plane of the clamping groove 306, the hole walls of the two sides of the clamping groove 306 are tightly connected through clamping screws 305, so that the grinding wheel electric spindle 308 is fixedly connected to the grinding wheel electric spindle base 304 without a gap, a mounting and fixing hole 7 is formed in the bottom surface of the grinding wheel electric spindle base 304, and the grinding wheel electric spindle base 304 is fixedly connected to the upper sliding table 306 through the mounting and fixing hole 307.
As shown in fig. 8 and 9, the dressing shaft assembly 4 includes a grinding wheel dressing shaft 402 and a dressing disk mounting flange 403 mounted at the front end of the grinding wheel dressing shaft 402 for mounting a grinding wheel dressing disk, the grinding wheel dressing shaft 402 is integrated with the rotor of the dressing electric spindle 407 and rotatably supported by a housing of the dressing electric spindle 407 through a bearing, the grinding wheel dressing shaft 402 is a hollow shaft, an acoustic wave sensor 409 is disposed in an inner hole of the dressing disk mounting flange 403 at the front end of the grinding wheel dressing shaft 402, a signal transmitter 411 is mounted in the inner hole at the rear end of the grinding wheel dressing shaft 402, the signal transmitter 411 is inserted into the acoustic wave sensor 409 through a connector 410 penetrating through the inner hole of the grinding wheel dressing shaft 402, a rear cover 408 is mounted at the rear end of the housing of the dressing electric spindle 407, a signal transmitter 412 is mounted in the rear cover 408, the signal transmitter 412 is connected with the signal transmitter 411 through a wireless signal, the mounting position of the signal transmitter 412 is opposite to the mounting position of the signal transmitter 411, the distance L between the signal transmitter 412 and the signal transmitter 411 is 0.5-1.5 mm; the acoustic wave sensor 9, the connector 10, the signal transmitter 11 and the signal transmitter 12 can be selected from professional products sold by related enterprises in the market. The trimming electric spindle 407 is fixedly connected to the trimming support 401 through a trimming electric spindle base 404, referring to fig. 10, a clamping cut-out 406 is axially formed on a hole wall of one side of a trimming electric spindle mounting hole on the trimming electric spindle base 404, the axis of the trimming electric spindle mounting hole is positioned on the central plane of the clamping cut-out 406, the hole walls of two sides of the clamping cut-out 406 are clamped and connected through a fastening screw 405, so that the trimming electric spindle 407 is fixedly connected to the trimming electric spindle base 404 without a gap, and the trimming support 401 is fixedly connected to the grinding carriage base 1; as shown in fig. 2, the axis of the grinding wheel dressing shaft 402 is parallel to the length direction of the guide rail in the feed linear guide rail pair 10, and the dressing of the whole grinding surface of the grinding wheel is completed by using the feed motion in the grinding wheel dressing process.
The above description has been presented only for the purpose of illustrating certain preferred embodiments of the invention, and it is not to be taken as a limitation on the invention, as many modifications and variations are possible. Any improvement and change made on the basis of the basic principle of the present invention should be considered as falling within the protection scope of the present invention.
Claims (10)
1. The utility model provides a high-accuracy valve grinder grinding wheel frame subassembly, includes grinding wheel axle subassembly (3), finishing axle subassembly (4) and grinding wheel carrier base (1), its characterized in that: a grinding wheel spindle (301) in the grinding wheel spindle assembly (3) and a rotor of a grinding wheel electric spindle (308) are integrated and rotatably supported on a grinding wheel electric spindle casing (313) through a bearing (311), a grinding wheel mounting flange (302) is installed at the front end of the grinding wheel spindle (301), the grinding wheel spindle (301) is a hollow shaft, a balance head (310) is fixedly connected in an inner hole at the front end of the grinding wheel spindle (301), the mounting position of the balance head (310) corresponds to the position of the grinding wheel mounting flange (302), the balance head (310) is located on the outer side of the bearing (311) for supporting the grinding wheel spindle (301), the rear end of the grinding wheel spindle (301) penetrates through the grinding wheel electric spindle casing (313), a signal receiver (314) is installed at the rear end of the grinding wheel spindle (301), the signal receiver (314) is electrically connected with the balance head (310) through a signal data line (312) penetrating through the inner hole of the grinding wheel spindle (301), and a receiver shield (309) is fixedly connected at the rear end of the grinding wheel electric spindle casing (313), a signal emitter (315) is fixedly connected in the receiver shield (309), the signal emitter (315) is connected with the signal receiver (314) through a wireless signal, and a vibration sensor (303) is arranged on the grinding wheel electric spindle (308); the grinding wheel electric spindle shell (313) is fixedly connected to the grinding wheel electric spindle seat (304), a clamping groove (306) is formed in the hole wall of one side of a grinding wheel electric spindle mounting hole in the grinding wheel electric spindle seat (304) along the axial direction, and the hole walls of the two sides of the clamping groove (306) are fixedly connected through a clamping screw (305); the grinding wheel electric spindle seat (304) is fixedly connected to the upper sliding table (6), the upper sliding table (6) is supported on the upper sliding table base (5) in a sliding mode through a feeding linear guide rail pair (8), a feeding driving device (9) is arranged between the upper sliding table (6) and the upper sliding table base (5), a grating ruler (7) is further arranged between the upper sliding table (6) and the upper sliding table base (5), the upper sliding table base (5) is fixedly connected to the lower sliding table (2), the lower sliding table (2) is supported on the grinding wheel frame base (1) in a sliding mode through a feed linear guide rail pair (10), a feed driving device (11) is arranged between the lower sliding table (2) and the grinding wheel frame base (1), and the length direction of a guide rail in the feed linear guide rail pair (10) is crossed with the length direction space of a guide rail in the feeding linear guide rail pair (8); the dressing shaft assembly (4) comprises a grinding wheel dressing shaft (402) and a dressing disc mounting flange (403) which is arranged at the front end of the grinding wheel dressing shaft (402) and used for mounting a grinding wheel dressing disc, the grinding wheel dressing shaft (402) and a rotor of a dressing electric main shaft (407) are integrated and are rotatably supported on a machine shell of the dressing electric main shaft (407) through a bearing, the grinding wheel dressing shaft (402) is a hollow shaft, an acoustic wave sensor (409) is arranged in an inner hole of the dressing disc mounting flange (403) at the front end of the grinding wheel dressing shaft (402), a signal transmitter (411) is arranged in the inner hole at the rear end of the grinding wheel dressing shaft (402), the signal transmitter (411) is spliced with the acoustic wave sensor (409) through a connector (410) penetrating through the inner hole of the grinding wheel dressing shaft (402), a rear cover (408) is arranged at the rear end of the machine shell of the dressing electric main shaft (407), and a signal transmitter (412) is arranged in the rear cover (408), the signal transmitter (412) is connected with the signal transmitter (411) through a wireless signal; the trimming electric spindle (407) is fixedly connected to the trimming support (401) through a trimming electric spindle seat (404), a clamping opening (406) is axially formed in the hole wall of one side of a trimming electric spindle mounting hole in the trimming electric spindle seat (404), the hole walls of two sides of the clamping opening (406) are clamped and connected through a fastening screw (405), and the trimming support (401) is fixedly connected to the grinding wheel frame base (1); the axis of the grinding wheel dressing shaft (402) is parallel to the length direction of the guide rail in the feed linear guide rail pair (10).
2. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the guide rail of the feeding linear guide rail pair (8) is arranged at the bottom of the upper sliding table (6), and the sliding block of the feeding linear guide rail pair (8) is arranged on the upper sliding table base (5).
3. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the guide rail of the feed linear guide rail pair (10) is arranged at the bottom of the lower sliding table (2), and the sliding block of the feed linear guide rail pair (10) is arranged on the grinding carriage base (1).
4. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the feeding driving device (9) is a ball screw nut pair driven by a servo motor.
5. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the feed driving device (11) is a ball screw nut pair driven by a servo motor.
6. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the balance head (310) is a motor-driven mechanical balance head.
7. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the mounting position of the signal emitter (315) is opposite to that of the signal receiver (314), and the distance T between the signal emitter (315) and the signal receiver (314) is 0.5-2 mm.
8. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the vibration sensor (303) is arranged on a shell (313) of the grinding wheel electric spindle.
9. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the installation position of the signal transmitter (412) is opposite to that of the signal transmitter (411), and the distance L between the signal transmitter (412) and the signal transmitter (411) is 0.5-1.5 mm.
10. The high precision valve grinder grinding wheel carrier assembly of claim 1, wherein: the included angle of the projection of the guide rail in the feeding linear guide rail pair (10) and the guide rail in the feeding linear guide rail pair (8) on the horizontal plane is between 60 and 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726035.9U CN215092930U (en) | 2021-04-10 | 2021-04-10 | High-precision valve grinder grinding wheel frame component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726035.9U CN215092930U (en) | 2021-04-10 | 2021-04-10 | High-precision valve grinder grinding wheel frame component |
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| Publication Number | Publication Date |
|---|---|
| CN215092930U true CN215092930U (en) | 2021-12-10 |
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| CN202120726035.9U Active CN215092930U (en) | 2021-04-10 | 2021-04-10 | High-precision valve grinder grinding wheel frame component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114750036A (en) * | 2022-05-12 | 2022-07-15 | 河南东进精密工具有限公司 | Grinding system with multi-purpose ball screw diamond gyro wheel |
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2021
- 2021-04-10 CN CN202120726035.9U patent/CN215092930U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114750036A (en) * | 2022-05-12 | 2022-07-15 | 河南东进精密工具有限公司 | Grinding system with multi-purpose ball screw diamond gyro wheel |
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