CN113199386A - Stop detection mechanism of honing tool and honing tool with same - Google Patents
Stop detection mechanism of honing tool and honing tool with same Download PDFInfo
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- CN113199386A CN113199386A CN202011276829.6A CN202011276829A CN113199386A CN 113199386 A CN113199386 A CN 113199386A CN 202011276829 A CN202011276829 A CN 202011276829A CN 113199386 A CN113199386 A CN 113199386A
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- honing tool
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 230000006698 induction Effects 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/06—Honing machines or devices; Accessories therefor with controlling or gauging equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/08—Honing tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/08—Honing tools
- B24B33/087—Honing tools provided with measuring equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/08—Honing tools
- B24B33/088—Honing tools for holes having a shape other than cylindrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/10—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the technical field of honing tools, in particular to a stop detection mechanism of a honing tool and the honing tool with the mechanism. The stop detection mechanism comprises a position sensor and a stop zero position adjusting mechanism, the stop detection mechanism detects whether a mandrel of the honing tool or a mandrel feeding part which moves synchronously with the mandrel when the honing tool works drops to a stop zero point through the position sensor, and when the mandrel or the mandrel feeding part drops to the stop zero point, the position sensor sends a stop signal for controlling the honing workpiece to stop honing. The honing tool with the stop detection mechanism comprises a control connecting device with the stop detection mechanism of the honing tool and a honing tool body connected to the control connecting device. The invention has the beneficial effects that: the stop detection mechanism can automatically stop when the honing reaches the required size, so that the honing out-of-tolerance is avoided, and the honing process flow is simplified.
Description
Technical Field
The invention relates to the technical field of honing tools, in particular to a stop detection mechanism of a honing tool and the honing tool with the mechanism.
Background
The honing technology has a wide application range, and the application fields of the honing technology extend to the industries of machine tools, bearings, electronic processing, die processing, instrument processing and the like. The selective application of the honing tool is also of considerable importance in honing processes.
The honing process is generally divided into two types, one is vertical process of a vertical honing machine, and the other is horizontal process of a small horizontal honing machine, the vertical honing machine is suitable for large-aperture honing process, the small horizontal honing machine is suitable for small-aperture honing process, the vertical honing process is generally workpiece fixing and honing tool floating, and the horizontal honing process is generally workpiece floating and honing tool fixing. When some abnormal conditions occur, such as a large heavy workpiece, the aperture is smaller than that of a common vertical honing tool, the hole precision is in micron-scale precision, the workpiece needs to be fixedly machined, and the vertical honing machine and the horizontal honing machine are not suitable for machining.
Chinese patent document CN109015332A discloses a self-centering multipurpose honing tool comprising a tool housing, the upper end of the tool housing has a main machine connecting structure for connecting with a main machine of an apparatus, the lower end of the tool housing has a honing tool body connecting structure for connecting with a honing tool body, a honing pressurizing device manually pressurized by a spring adjusting screw sleeve is provided on the tool housing, and the self-centering multipurpose honing tool is connected with the honing tool body through a self-centering honing tool body connecting structure composed of an upper connecting sleeve, a middle connecting sleeve and a lower connecting sleeve. A self-centering multipurpose honing tool can be used for a numerical control machining center machine tool, has a full-floating self-centering function, can machine high-precision vertical holes with the hole diameter smaller than that of a common vertical honing tool on large heavy workpieces, and can machine high-precision horizontal holes and high-precision inclined holes.
Chinese patent document CN110039437A discloses a honing tool capable of remotely controlling pressure, the control connection device of the honing tool has a spindle feeding device which drives a spindle feeding member to feed a spindle by a remotely controlled motor and a screw rod mechanism on the motor, the spindle feeding device can be mounted on a processing center or a grinding machine to complete ultra-precision hole processing, the honing pressure does not need to be manually adjusted by stopping the machine, and the honing pressure can be remotely controlled according to the magnitude of honing amount and the operating process of honing.
In order to avoid the honing out of tolerance, the honing tool in the prior art needs to repeatedly stop to detect the size of the workpiece hole depending on the experience of workers during honing until the workpiece hole is honed to the required size.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to avoid the honing out of tolerance, the honing machine needs to repeatedly stop to detect the size of the workpiece hole depending on the experience of workers during honing processing until the workpiece hole is honed to the required size.
The technical scheme adopted by the invention for solving the technical problems is as follows: the stop detection mechanism detects whether a mandrel of the honing tool or a mandrel feeding piece which moves synchronously with the mandrel when the honing tool works drops to a stop zero point through the position sensor, the position sensor sends a stop signal when the mandrel or the mandrel feeding piece drops to the stop zero point, and the stop zero point position adjustment mechanism is used for adjusting the position of the stop zero point up and down.
Further defined, the position sensor has a sensing point C and a sensing point D located inside the honing tool, wherein induction point C is the machine halt zero point, when induction point C and induction point D close on or contact, position sensor sends shutdown signal, machine halt zero point position adjustment mechanism includes the mount pad, adjusting screw and fine setting nut, the mount pad sets up on the outer wall of honing tool, adjusting screw and fine setting nut install on the mount pad, fine setting nut overlaps on adjusting screw, screw-thread fit each other, adjusting screw is last to have the cantilever arm, the cantilever arm passes the inside that the opening on the honing tool got into the honing tool, fine setting nut's rotation regulation action drive adjusting screw oscilaltion, adjusting screw's lift drives the cantilever arm oscilaltion, position sensor's induction point C sets up at the cantilever arm, induction point D sets up on dabber or the dabber feeding piece with dabber synchronous motion when honing tool works.
Further defined, the position sensor is embodied as a proximity switch.
Further limiting, a locking nut is screwed on an adjusting screw of the machine halt zero point position adjusting mechanism and used for locking the adjusting screw on the mounting seat.
A honing tool with a stop detection mechanism comprises a control connection device and a honing tool body connected to the control connection device, wherein the control connection device comprises a tool jacket and a mandrel feeding device and a mandrel feeding part which are arranged in the tool jacket, the mandrel feeding part feeds a mandrel of the honing tool body under the driving of the mandrel feeding device, the control connection device is provided with the stop detection mechanism of the honing tool, the stop detection mechanism detects whether the mandrel feeding part descends to a stop zero point through a position sensor, when the mandrel feeding part descends to the stop zero point, the position sensor sends a stop signal, and the stop signal sent by the position sensor controls the mandrel feeding device of the honing tool to stop the feeding of the mandrel feeding part and enable the mandrel feeding part to retreat.
Further limit, the upper end of the tool jacket of the control connecting device is provided with a main machine connecting structure used for connecting the main machine of the device, the lower end of the tool jacket is provided with a honing tool body connecting structure used for connecting with the honing tool body,
further defined, the honing tool body connecting structure is a self-centering honing tool body connecting structure.
Further limit, the host connection structure is connected with the equipment host through a host connection shaft.
Further limiting, the mandrel feeding device is a mandrel feeding device which pressurizes a spring through a pneumatic piston and then drives a mandrel feeding piece to feed the mandrel; or the mandrel feeding device is a mandrel feeding device which pressurizes a spring through a remote-controlled motor and a screw rod mechanism on the motor so as to drive the mandrel feeding piece to feed the mandrel.
The invention has the beneficial effects that: the stop detection mechanism can automatically stop when the honing reaches the required size, so that the honing out-of-tolerance is avoided, and the honing process flow is simplified.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description;
figure 1 is a schematic structural view of a pneumatically controlled honing tool of the invention;
figure 2 is a state of use view of the pneumatically controlled honing tool of this invention;
FIG. 3 is an enlarged view at E of FIG. 1;
in the drawing, 1, a tool outer sleeve, 2, a piston, 3, a pressurizing spring, 4, a honing tool body, 4-1, a mandrel, 4-2, a mandrel reset spring, 5, a pneumatic input interface, 6, a mounting seat, 7, an adjusting screw, 7-1, an extending arm, 8, a fine adjustment nut, 9, an air source input port, 10, an air pressure adjusting valve, 11, an air source stop valve, 12, an electromagnetic valve, 13, a host connecting shaft, 14, an upper end cover, 15, a mandril, 16, a mandril outer pressing ring, 17, a mandril pin, 18, an upper connecting sleeve, 19, an intermediate connecting sleeve, 20, a lower connecting sleeve, 21, an elastic reset component, 22, a protecting sleeve, 23, a tool rest base, 24, a locking nut, 25, a honing tool locking screw sleeve, 26, a device locking screw sleeve and 27 work pieces are arranged.
Detailed Description
A stop detection mechanism of a honing tool comprises a position sensor and a stop zero position adjusting mechanism, wherein the stop detection mechanism detects whether a mandrel 4-1 of the honing tool or a mandrel feeding part which moves synchronously with the mandrel 4-1 when the honing tool works drops to a stop zero point through the position sensor, when the mandrel 4-1 or the mandrel feeding part drops to the stop zero point, the position sensor sends a stop signal for controlling a honing workpiece to stop honing, and the stop zero position adjusting mechanism is used for adjusting the position of the stop zero point up and down.
The position sensor is provided with a sensing point C and a sensing point D which are positioned inside the honing tool, wherein the sensing point C is a stop zero point, when the sensing point C and the sensing point D are close to or contact with each other, the position sensor sends a stop signal, the stop zero point position adjusting mechanism comprises a mounting seat 6, an adjusting screw 7 and a fine adjusting nut 8, the mounting seat 6 is arranged on the outer wall of the honing tool, the adjusting screw 7 and the fine adjusting nut 8 are arranged on the mounting seat 6, the fine adjusting nut 8 is sleeved on the adjusting screw 7 and is in threaded fit with each other, the adjusting screw 7 is provided with an extending arm 7-1, the extending arm 7-1 penetrates through an opening in the honing tool to enter the honing tool, the adjusting screw 7 is driven to ascend and descend by the rotary adjusting action of the fine adjusting nut 8, the telescopic arm is driven to ascend and descend by the ascending and descend of the adjusting screw 7, the sensing point C of the position sensor is arranged on the extending arm 7-1, the sensing point D is provided on the mandrel 4-1 or on a mandrel feed that moves synchronously with the mandrel 4-1 when the honing tool is in operation.
A locking nut 24 is screwed on the adjusting screw 7 of the machine halt zero point position adjusting mechanism and is used for locking the adjusting screw 7 on the mounting seat 6.
The position sensor is specifically a proximity switch, the sensing point C and the sensing point D can be respectively a proximity switch body and a proximity switch body matched sensing piece, if the proximity switch is a Hall proximity switch, the Hall proximity switch body and the magnetic steel are respectively arranged on the extension arm 7-1 and the mandrel feeding piece as the sensing point C and the sensing point D. Of course, depending on the type of proximity switch, the cantilever arm 7-1 and the mandrel feeder itself may also act as sensing elements without the need for special sensing elements. Of course, the position sensor may be a contact type, such as a travel switch, the travel switch body serves as one sensing point, and the projecting arm 7-1 or the mandrel feeder itself serves as another sensing point, and position sensing is achieved by pressing or contacting. The particular type of position sensor may be selected in the prior art in accordance with the present principles and practical requirements.
A honing tool with a stop detection mechanism comprises a control connection device and a honing tool body 4 connected to the control connection device, wherein the control connection device comprises a tool jacket 1 and a mandrel feeding device and a mandrel feeding piece in the tool jacket 1, the mandrel feeding piece feeds a mandrel of the honing tool body 4 under the driving of the mandrel feeding device, the control connection device is provided with the stop detection mechanism of the honing tool, the stop detection mechanism detects whether the mandrel feeding piece descends to a stop zero point through a position sensor, when the mandrel feeding piece descends to the stop zero point, the position sensor sends a stop signal, and the stop signal sent by the position sensor controls the mandrel feeding device of the honing tool to stop the feeding of the mandrel feeding piece and enable the mandrel feeding piece to retreat.
The upper end of the tool jacket 1 of the control connecting device is provided with a main machine connecting structure used for connecting with a main machine of equipment, the lower end of the tool jacket 1 is provided with a honing tool body connecting structure used for connecting with a honing tool body 4,
the honing tool body connecting structure is a self-centering honing tool body connecting structure.
The host connecting structure is connected with the equipment host through a host connecting shaft 13.
The mandrel feeding device is a mandrel feeding device which pressurizes a pressurizing spring 3 through a pneumatic piston 2 so as to drive a mandrel feeding piece to feed a mandrel 4-1; or the mandrel feeding device is a mandrel feeding device which pressurizes the pressurizing spring 3 through a remote-controlled motor and a screw rod mechanism on the motor so as to drive the mandrel feeding piece to feed the mandrel 4-1.
The stop detection mechanism of the honing tool will be further described by taking as an example a mandrel feeding device that feeds a mandrel 4-1 by pressurizing a pressurizing spring 3 with a pneumatic piston 2 and driving a mandrel feeding member.
As shown in fig. 1, 2 and 3, a honing tool with a stop detection mechanism comprises a honing tool body 4, a pneumatic control connecting device and an air source device, wherein the honing tool body 4 is installed on the pneumatic control connecting device, and the air source device is connected with the stop detection mechanism and a pneumatic input interface 5. The specification of the honing tool body 4 is determined according to the bore size of the processed workpiece.
The pneumatic control connecting device comprises a tool jacket 1, a piston 2, a pressurizing spring 3, a mandrel feeding part and a stop detection mechanism, wherein the upper end of the tool jacket 1 is provided with a host connecting structure for connecting with an equipment host, the lower end of the tool jacket 1 is provided with a honing tool body connecting structure for connecting with a honing tool body 4, the tool jacket 1 is also provided with a pneumatic input interface 5, the piston 2 and the pressurizing spring 3 form a mandrel feeding device, the piston 2, the pressurizing spring 3 and the mandrel feeding part are arranged in the tool jacket 1 from top to bottom, the pneumatic input interface 5 is used for being connected with an air source device, the pneumatic input interface 5 is communicated with an inner cavity of the tool jacket 1, the air source device drives the piston 2 to compress the pressurizing spring 3 through gas, the pressurizing spring 3 pushes the mandrel feeding part to descend to feed a mandrel 4-1 of the honing tool body 4 connected on the honing tool body connecting structure, the stop detection mechanism comprises a position sensor and a stop zero position adjusting mechanism, the stop detection mechanism detects whether the mandrel feeding piece descends to a stop zero point through the position sensor, when the mandrel feeding piece descends to the stop zero point, the position sensor sends a stop signal to control the air source device to release pressure, and the stop zero position adjusting mechanism is used for adjusting the stop zero position up and down.
The honing tool body connecting structure is a self-centering honing tool body connecting structure. The self-centering honing tool body connecting structure comprises an upper connecting sleeve 18, a middle connecting sleeve 19 and a lower connecting sleeve 20, wherein the upper connecting sleeve 18 is horizontally and slidably connected with the middle connecting sleeve 19, the middle connecting sleeve 19 is horizontally and slidably connected with the lower connecting sleeve 20, the horizontal slidable direction between the upper connecting sleeve 18 and the middle connecting sleeve 19 is vertical to the horizontal slidable direction between the middle connecting sleeve 19 and the lower connecting sleeve 20, the upper connecting sleeve 18 and the middle connecting sleeve 19 are reset through an elastic resetting part 21 after horizontally sliding, the middle connecting sleeve 19 and the lower connecting sleeve 20 are reset through another elastic resetting part 21 after horizontally sliding, a honing tool body 4 is arranged at the lower end of the lower connecting sleeve 20, the upper connecting sleeve 18 and the middle connecting sleeve 19, and the middle connecting sleeve 19 and the lower connecting sleeve 20 are horizontally and slidably connected through a sliding groove at the end part and a sliding block embedded in the sliding groove, the upper connecting sleeve 18, the middle connecting sleeve 19 and the lower connecting sleeve 20 are positioned in the tool jacket 1 or in a protecting sleeve 22 connected to the lower end of the tool jacket 1, the upper connecting sleeve 18 is fixed on the tool jacket 1, the protecting sleeve 22 or the main machine connecting shaft 13, a mandrel 4-1 of the honing tool body 4 penetrates through inner holes of the upper connecting sleeve 18, the middle connecting sleeve 19 and the lower connecting sleeve 20 to be in contact with the ejector rod 15, and a mandrel return spring 4-2 is arranged in the honing tool body 4 and used for driving the mandrel 4-1 to return. The elastic reset component 21 is specifically an O-shaped rubber sealing ring. The specific structure of the honing tool body 4 mounted at the lower end of the lower connecting sleeve 20 is as follows: the honing tool body is provided with a locking ring, and the honing tool body is locked in the clamping hole of the lower connecting sleeve 20 through the locking ring and a honing tool locking threaded sleeve sleeved on the lower connecting sleeve 20.
The position sensor is provided with two induction points C and D, the stop zero position adjusting mechanism comprises an installation seat 6, an adjusting screw 7 and a fine adjusting nut 8, the installation seat 6 is arranged on the outer wall of the tool outer sleeve 1, the adjusting screw 7 and the fine adjusting nut 8 are arranged on the installation seat 6, the fine adjusting nut 8 is sleeved on the adjusting screw 7 and is in threaded fit with each other, the installation mode is that a vertical screw through hole and a nut groove perpendicular to the screw through hole are formed in the installation seat 6, the adjusting screw 7 is inserted into the screw through hole, and the fine adjusting nut 8 is embedded into the nut groove. The adjusting screw 7 is provided with an extending arm 7-1, the extending arm 7-1 penetrates through an opening in the tool outer sleeve 1 to enter the tool outer sleeve 1, the adjusting screw 7 is driven to ascend and descend by the rotation adjusting action of the fine adjusting nut 8, the telescopic arm is driven to ascend and descend by the ascending and descending of the adjusting screw 7, and the sensing point C and the sensing point D of the position sensor are located in the tool outer sleeve 1 and are respectively arranged on the extending arm 7-1 and the mandrel feeding piece. A locking nut 24 is screwed on the adjusting screw 7 of the machine halt zero point position adjusting mechanism and is used for locking the adjusting screw 7 on the mounting seat 6.
The air source device comprises an air source input port 9, an air pressure regulating valve 10, an air source stop valve 11 and an electromagnetic valve 12, the air source input port 9 is used for being connected with an air source, the air source stop valve 11, the air pressure regulating valve 10 and the electromagnetic valve 12 are connected in series on an air path from the air source input port 9 to a pneumatic input interface 5 of the pneumatic control connecting device, the air source stop valve 11 is used for stopping the air path, the air pressure regulating valve 10 is used for regulating air in the air path to set constant air pressure, the electromagnetic valve 12 is in signal connection with a position sensor of the halt detection mechanism, the constant air pressure output by the air pressure regulating valve 10 is output to the pneumatic input interface 5 through the electromagnetic valve 12, when the position sensor sends a halt signal to the electromagnetic valve 12, the electromagnetic valve 12 is switched to a pressure relief state, and the pneumatic input interface 5 relieves pressure through the electromagnetic valve 12. The solenoid valve 12 is a two-position three-way solenoid valve.
The main machine connecting structure comprises a main machine connecting shaft 13 and an upper end cover 14, the main machine connecting shaft 13 is inserted into the upper end of the tool outer sleeve 1 through the upper end cover 14, the piston 2 is sleeved on the inserting end of the main machine connecting shaft 13, and the bottom of the inserting end of the main machine connecting shaft 13 is provided with an ejector rod inner hole. The inner and outer rings of the piston 2 are sealed by sealing rings.
The mandrel feeding piece comprises a mandrel 15 and a mandrel outer pressing ring 16, the mandrel 15 is arranged in an inner hole of the mandrel, the mandrel outer pressing ring 16 is sleeved on a host connecting shaft 13, a pin sliding groove is formed in the host connecting shaft 13, the mandrel outer pressing ring 16 is connected with the mandrel 15 through a mandrel pin 17 penetrating through the pin sliding groove, a pressurizing spring 3 is sleeved on the host connecting shaft 13, and the pressurizing spring 3 is located between a piston 2 and the mandrel outer pressing ring 16. The induction point D is positioned on the ejector rod outer pressing ring 16.
The honing tool can be used for a numerical control lathe, the honing tool is connected to a tool rest base 23 of the numerical control lathe, a locking ring is arranged on a main machine connecting shaft 13, and the main machine connecting shaft 13 is locked in a clamping hole in the tool rest base 23 through the locking ring and a device locking threaded sleeve sleeved on the tool rest base 23.
The honing tool can also be used for grinding machines.
The honing tool of the embodiment is arranged on a numerical control machining center or a grinding machine to perform ultra-precision hole machining, the honing pressure does not need to be adjusted manually by stopping, and the honing pressure can be adjusted according to the honing amount and the honing amount of the honing tool in the operating process.
The honing tool has a self-centering full-floating function through the self-centering honing tool body connecting structure, so that a machined part only needs to be fixed and clamped by a lathe, the machined part does not need to float like a horizontal honing machine honing requirement, the stop detection mechanism can automatically stop when honing to the required size, the honing out-of-tolerance is avoided, and the honing machining process is simplified.
The whole working process and principle are as follows:
(1) tool setting;
(1.1) loosening the locking nut 24 to the highest position;
(1.2) adjusting the fine adjustment nut 8 to enable the adjusting screw 7 to drive the extension arm 7-1 and a sensing point C of a position sensor on the extension arm 7-1 to descend to the lowest position;
(1.3) placing the middle part of a honing strip on the honing head of the honing tool body 4 in an inner hole of the detection ring gauge;
(1.4) slowly opening an air source stop valve 11, and adjusting an air pressure regulating valve 10 to enable the pressure to be about 0.1-0.2 MPa and to be larger than the pressure of a mandrel reset spring 4-2, wherein the honing strip is attached to an inner hole of the detection ring gauge;
(1.5) adjusting a fine adjustment nut 8 to enable a sensing point C of the position sensor to sense a sensing point D of the position sensor and send a stop signal, opening an electromagnetic valve 12 to enable air inlet of the point A to be changed into pressure relief, returning a piston 2, returning a mandril 15, an external mandril pressing ring 16 and the sensing point D of the position sensor, locking a locking nut 24, taking down a detection ring gauge, finishing tool setting, closing an air source stop valve 11, and then formally honing a workpiece 27;
(2) starting the numerical control lathe to enable the honing head of the honing tool body 4 to enter the hole to be honed, and performing reciprocating motion for a plurality of times easily without any interference;
(3) communicating honing lubricating oil in a hole to be honed;
(4) the air source stop valve 11 is opened, the air pressure regulating valve 10 is adjusted to enable the pressure to be proper, the air pressure can be slightly higher during rough honing, the air pressure can be slightly lower during fine honing, and the specific pressure is determined according to the actual use condition and is not discussed in detail;
(5) honing processing is carried out, when honing reaches a required size, a sensing point C of the position sensor senses a sensing point D of the position sensor and sends a stop signal, the electromagnetic valve 12 is opened to enable air inlet of the point A to be changed into pressure relief, the piston 2 retracts, the ejector rod 15, the ejector rod outer pressing ring 16 and the sensing point D of the position sensor also retract, the honing strip retracts to the original point, an indicator lamp can be designed to light up to remind a worker, the air source stop valve 11 is closed, the tool rest base 23 of the numerical control lathe retracts to the original point, the workpiece 27 stops rotating, size detection is carried out, if the honing size is in place, honing processing is finished, if the honing size deviation is small, honing can be carried out for a plurality of times according to experience after the sensing point C is reduced, if the honing size deviation is large, tool setting can be carried out again, and the steps are repeated.
Chinese patent document CN110039437A discloses a honing tool capable of remotely controlling pressure, the mandrel feeding device of the honing tool capable of remotely controlling pressure is a mandrel feeding device which pressurizes a pressurizing spring 3 through a remotely controlled motor and a screw rod mechanism on the motor to drive a mandrel feeding member to feed a mandrel 4-1, the mandrel feeding member is a supporting ring, the stop detection mechanism of the honing tool can also be used for improving the honing tool capable of remotely controlling pressure, the honing tool can be automatically stopped when being used for honing and honing to a required size, and honing over-tolerance is avoided.
Claims (9)
1. A stop detection mechanism of a honing tool is characterized in that: the honing tool comprises a position sensor and a stop zero position adjusting mechanism, wherein the stop detecting mechanism detects whether a mandrel (4-1) of the honing tool or a mandrel feeding part which moves synchronously with the mandrel (4-1) when the honing tool works drops to a stop zero point or not through the position sensor, when the mandrel (4-1) or the mandrel feeding part drops to the stop zero point, the position sensor sends a stop signal for controlling a honing workpiece to stop honing, and the stop zero position adjusting mechanism is used for adjusting the position of the stop zero point up and down.
2. A stop detection mechanism for a honing tool as claimed in claim 1, wherein: the position sensor is provided with a sensing point C and a sensing point D which are positioned in the honing tool, wherein the sensing point C is a stop zero point, when the sensing point C is close to or contacted with the sensing point D, the position sensor sends a stop signal,
the machine halt zero point position adjusting mechanism comprises a mounting seat (6), adjusting screw (7) and fine adjustment nut (8), mount pad (6) set up on the outer wall of honing tool, adjusting screw (7) and fine adjustment nut (8) are installed on mount pad (6), fine adjustment nut (8) cover is on adjusting screw (7), screw-thread fit each other, adjusting screw (7) are last to have and to stretch out arm (7-1), stretch out arm (7-1) pass the opening on the honing tool and get into the inside of honing tool, the rotation regulation action drive adjusting screw (7) oscilaltion of fine adjustment nut (8), the flexible arm oscilaltion of lift drive of adjusting screw (7), position sensor's induction point C sets up in stretching out arm (7-1), induction point D sets up on dabber (4-1) or the dabber feeding piece with dabber (4-1) synchronous motion when honing tool work.
3. A stop detection mechanism for a honing tool as claimed in claim 1 or claim 2, wherein: the position sensor is a proximity switch.
4. A stop detection mechanism for a honing tool as claimed in claim 2, wherein: and a locking nut (24) is screwed on the adjusting screw (7) of the machine halt zero point position adjusting mechanism and is used for locking the adjusting screw (7) on the mounting seat (6).
5. A honing tool with a halt detection mechanism comprises a control connection device and a honing tool body (4) connected to the control connection device, wherein the control connection device comprises a tool jacket (1) and a mandrel feeding device and a mandrel feeding part in the tool jacket (1), and the mandrel feeding part is driven by the mandrel feeding device to feed a mandrel of the honing tool body (4), and the honing tool is characterized in that: a stop detection mechanism of the honing tool of claim 1 or 2 provided on the control link, the stop detection mechanism detecting whether the mandrel feeding member is lowered to a stop zero point by the position sensor, the position sensor giving a stop signal when the mandrel feeding member is lowered to the stop zero point, the stop signal given by the position sensor controlling the mandrel feeding device of the honing tool to stop the feeding of the mandrel feeding member and to retract the mandrel feeding member.
6. A honing tool having a stop detecting mechanism according to claim 5, wherein: the upper end of a tool jacket (1) of the control connecting device is provided with a main machine connecting structure for connecting an equipment main machine, and the lower end of the tool jacket (1) is provided with a honing tool body connecting structure for connecting with a honing tool body (4).
7. A honing tool having a stop detecting mechanism according to claim 6, wherein: the honing tool body connecting structure is a self-centering honing tool body connecting structure.
8. A honing tool having a stop detecting mechanism according to claim 6, wherein: the host connecting structure is connected with the equipment host through a host connecting shaft (13).
9. A honing tool having a stop detecting mechanism according to claim 5, wherein: the mandrel feeding device is a mandrel feeding device which pressurizes a pressurizing spring (3) through a pneumatic piston (2) so as to drive a mandrel feeding piece to feed a mandrel (4-1);
or the mandrel feeding device is a mandrel feeding device which pressurizes a pressurizing spring (3) through a remote-controlled motor and a screw rod mechanism on the motor so as to drive a mandrel feeding piece to feed a mandrel (4-1).
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