CN113894656A - One-step forming grinding machine for air valve - Google Patents
One-step forming grinding machine for air valve Download PDFInfo
- Publication number
- CN113894656A CN113894656A CN202111300207.7A CN202111300207A CN113894656A CN 113894656 A CN113894656 A CN 113894656A CN 202111300207 A CN202111300207 A CN 202111300207A CN 113894656 A CN113894656 A CN 113894656A
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- Prior art keywords
- grinding wheel
- spindle
- dressing
- ejector rod
- seat
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a valve one-step forming grinding machine which comprises a frame, a feeding conveying device, a discharging conveying device, a workpiece main shaft, a grinding wheel main shaft and a dressing wheel main shaft, wherein the workpiece main shaft can move back and forth along the axial direction through a workpiece main shaft sliding table, a discharging ejector rod limited by an ejector rod support and an elastic telescopic pin on the ejector rod support is inserted in an inner hole of an elastic chuck in the workpiece main shaft, an ejector rod position detection sensor is arranged on the ejector rod support, a charging positioning push rod capable of moving back and forth is arranged at the front end of the workpiece main shaft, the grinding wheel main shaft and the dressing wheel main shaft are arranged in parallel, the grinding wheel main shaft moves and feeds through a grinding wheel sliding seat in the radial direction, and the dressing wheel main shaft is arranged on the grinding wheel sliding seat and can feed in the radial direction. The valve one-step molding grinding machine can optimize the structure of a clamping mechanism in valve grinding, is quick and reliable in clamping and discharging, can finish the molding and finishing of a grinding wheel in time on the premise of not influencing the normal production rhythm of valve grinding, and improves the grinding quality and the production efficiency.
Description
Technical Field
The invention relates to grinding equipment, in particular to equipment for one-step forming grinding of a valve head.
Background
The manufacturing quality of the valve head is one of the key factors for ensuring the performance of the engine, and the working efficiency in the valve manufacturing process is also the continuous pursuit target of the valve manufacturing industry. According to conventional valve grinding equipment, valves are conveyed to a grinding machine working area through a feeding device and are clamped and conveyed to the front side of a grinding machine workpiece spindle one by one, the workpiece spindle is fixedly connected to a grinding machine body, the valves are required to be conveyed into a chuck in the grinding machine workpiece spindle through a clamping mechanism to be clamped and fixedly connected, the valves are ejected out of the workpiece spindle through an ejector rod discharging mechanism after grinding is completed, corresponding mechanisms such as feeding and clamping are required in the valve clamping process, one ejector rod discharging mechanism is required after grinding is completed, the grinding machine mechanism is complex, the action time is long, time is consumed due to the fact that the workpiece clamping process is slow in the grinding process, and the working efficiency is not high; the grinding of the valve head by the formed grinding wheel is an effective means for improving the grinding quality and the grinding efficiency in the grinding processing of the valve head, the grinding processing of the valve head can be completed by one-step forming, the formed grinding wheel needs to be frequently ground and trimmed in the using process so as to keep the stability of the grinding quality and the grinding efficiency, a grinding wheel dresser in a commonly used forming grinding wheel dressing mode is installed on a rack, when the formed grinding wheel needs to be dressed, a grinding wheel spindle is shifted to a dressing position corresponding to the grinding wheel dresser, the formed grinding wheel is dressed by the grinding wheel dresser, the grinding wheel dressing mode needs to arrange the setting of the grinding wheel dressing time and needs to shift the grinding wheel spindle to the dressing position, the normal production takt of valve grinding needs to be interrupted, and the working efficiency is reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the valve one-step forming grinding machine which can optimize the structure of a clamping mechanism in valve grinding, is quick and reliable in clamping and unloading, can finish grinding wheel forming and finishing in time on the premise of not influencing the normal production rhythm of valve grinding, and improves the grinding quality and the production efficiency.
In order to solve the technical problem, the invention provides a valve one-step forming grinding machine, which comprises a frame, a feeding and conveying device, a discharging and conveying device, a hollow workpiece spindle, a grinding wheel spindle and a dressing wheel spindle, wherein the workpiece spindle is rotatably supported on a workpiece spindle seat, the front end of an inner hole of the workpiece spindle is provided with an elastic chuck, the rear end of the elastic chuck is connected with a pull pipe, the pull pipe is connected with a pull pipe driving device, the grinding wheel spindle is rotatably supported on a grinding wheel shaft seat, the grinding wheel shaft seat is arranged on a grinding wheel sliding seat, the grinding wheel sliding seat is movably supported on the grinding wheel seat through a grinding wheel feeding guide rail, the grinding wheel sliding seat is in transmission connection with a grinding wheel feeding motor, the grinding wheel seat is arranged on the frame, the workpiece spindle seat is arranged on a workpiece spindle sliding table, the workpiece spindle sliding table is movably supported on the workpiece spindle seat through a workpiece spindle guide rail, the length direction of the workpiece spindle guide rail is parallel to the axis of the workpiece spindle, the workpiece main shaft sliding table is in transmission connection with a workpiece main shaft movement driving device, and the workpiece main shaft support is arranged on the rack; a discharging ejector rod is inserted into the inner hole of the elastic chuck and is installed on the frame through an ejector rod support, a positioning pin groove is formed in the discharging ejector rod, an elastic telescopic pin is arranged on the ejector rod support, the outer end of the elastic telescopic pin is inserted into the positioning pin groove, and an ejector rod position detection sensor is arranged between the ejector rod support and the discharging ejector rod; a charging positioning push rod is arranged at the front end of the workpiece main shaft, the minimum distance between the outer end surface of the charging positioning push rod and the front end surface of the discharging ejector rod corresponds to the length of the valve to be ground, and the charging positioning push rod is installed on the rack through a push rod driving device; the axis of the grinding wheel spindle is parallel to the axis of the workpiece spindle, and the length direction of the grinding wheel feeding guide rail is vertically crossed with the axis of the grinding wheel spindle; the main shaft of the dressing wheel is rotatably supported on a dressing main shaft seat, the dressing main shaft seat is movably supported on a grinding wheel dressing seat through a dressing feed guide rail, the grinding wheel dressing seat is arranged on a grinding wheel sliding seat, the length direction of the dressing feed guide rail is vertically crossed with the axis of the main shaft of the dressing wheel, and the dressing main shaft seat is in transmission connection with a dressing feed motor; the main shaft of the dressing wheel is parallel to the main shaft of the grinding wheel, the main shaft of the dressing wheel is provided with a formed dressing wheel, and the axial position of the formed dressing wheel corresponds to the position of a formed grinding wheel arranged on the main shaft of the grinding wheel.
In the structure, the workpiece main shaft seat is arranged on the workpiece main shaft sliding table, the workpiece main shaft sliding table is movably supported on the workpiece main shaft support through the workpiece main shaft guide rail, the length direction of the workpiece main shaft guide rail is parallel to the axis of the workpiece main shaft, the workpiece main shaft sliding table is in transmission connection with the workpiece main shaft movement driving device, and the workpiece main shaft support is arranged on the rack.
And because the discharging ejector rod is inserted in the inner hole of the elastic chuck, the discharging ejector rod is arranged on the frame through an ejector rod support, a positioning pin groove is arranged on the discharging ejector rod, an elastic telescopic pin is arranged on the ejector rod support, the outer end of the elastic telescopic pin is inserted in the positioning pin groove, an ejector rod position detection sensor is arranged between the ejector rod support and the discharging ejector rod, the discharging ejector rod arranged on the frame is relatively and fixedly connected with the ejector rod support through the elastic telescopic pin, the elastic telescopic pin inserted in the positioning pin groove keeps the axial position of the discharging ejector rod relative to the ejector rod support fixed, namely can be fixed relative to the frame, in the process of positioning and clamping the air valve, the end surface of the air valve rod part is contacted with the front end of the discharging ejector rod, after the grinding of the air valve is finished, the air valve is loosened by the elastic chuck in a normal working state, and the workpiece main shaft moves backwards under the driving of the workpiece main shaft movement driving device, the valve is kept still under the limit of the discharging ejector rod until the valve spindle moves backwards to the initial position, the front end of the discharging ejector rod is arranged outside the front end of the elastic chuck, the valve can be axially separated from the elastic chuck, and the valve automatically realizes discharging operation; when the pneumatic chuck in the workpiece spindle fails to timely loosen the valve due to failure, the workpiece spindle can drive the valve to move backwards through the pneumatic chuck, the valve pushes and presses the discharging ejector rod, the elastic telescopic pin contracts and exits the positioning pin slot under the action of axial force applied to the discharging ejector rod, so that the discharging ejector rod can axially shift and cannot be forced to push and press to be bent and deformed, accidental damage to the discharging ejector rod and the workpiece spindle is avoided, the ejector rod position sensor can timely sense the position change of the discharging ejector rod at the moment, abnormal discharging information can be provided for a grinding equipment control system, operators can timely handle the pneumatic chuck, normal operation of grinding equipment is guaranteed, and working reliability is improved.
Still because the front end at the work piece main shaft is equipped with the location push rod of feeding, the minimum interval between the outer terminal surface of location push rod of feeding and the preceding terminal surface of ejection of compact ejector pin corresponds with the length of waiting to grind the valve, the location push rod of feeding passes through push rod drive arrangement and installs in the frame, then grinding equipment's feeding conveyor will wait to grind the valve carry feed to decide between the push rod and the ejection of compact ejector pin, in the in-process that work piece main shaft removes drive arrangement drive work piece main shaft slip table and move forward, push rod drive arrangement will promote to feed the location push rod and move to ejection of compact ejector pin direction, make valve rod portion terminal surface and ejection of compact ejector pin front end contact, thereby realize the location of valve, the location process is synchronous with the clamping process of valve, high work efficiency.
Furthermore, the axis of the grinding wheel spindle is parallel to the axis of the workpiece spindle, and the length direction of the grinding wheel feeding guide rail is perpendicular to the axis of the grinding wheel spindle, so that the grinding wheel can be accurately fed along the radial direction of the grinding wheel in the grinding process, the requirement that the valve is ground by adopting a formed grinding wheel is met, and the grinding quality is ensured.
The main shaft of the dressing wheel is rotatably supported on a dressing main shaft seat, the dressing main shaft seat is movably supported on a grinding wheel dressing seat through a dressing feeding guide rail, the grinding wheel dressing seat is arranged on a grinding wheel sliding seat, the length direction of the dressing feeding guide rail is perpendicular to the axial line of the main shaft of the dressing wheel, the dressing main shaft seat is in transmission connection with a dressing feeding motor, the main shaft of the dressing wheel is arranged in parallel with the main shaft of the grinding wheel, a forming dressing wheel is arranged on the main shaft of the dressing wheel, the axial position of the forming dressing wheel corresponds to the position of a forming grinding wheel arranged on the main shaft of the grinding wheel, the main shaft of the dressing wheel is driven by the dressing feeding motor to realize dressing feeding along the radial direction of the main shaft of the dressing wheel, the dressing requirement of the forming grinding wheel is met, and the dressing seat of the grinding wheel is arranged on the grinding wheel sliding seat, so that the main shaft of the dressing wheel can constantly keep the relative position relation with the main shaft of the grinding wheel no matter in the grinding process of waiting for clamping the grinding wheel, therefore, the grinding wheel can be dressed at any time, the dressing process of the grinding wheel can be started as long as the grinding wheel is separated from the ground valve, the forming and dressing of the grinding wheel can be timely completed on the premise of not influencing the normal production takt of valve grinding, and the grinding quality and the production efficiency can be realized.
In a preferred embodiment of the present invention, the workpiece spindle is in transmission connection with a servo motor through a toothed belt transmission pair, and the servo motor is installed on the workpiece spindle sliding table. By adopting the implementation mode, the workpiece spindle can be conveniently and reliably driven to rotate under the structural scheme that the workpiece spindle is displaced forwards and backwards, the workpiece spindle is stable in operation, and the working operation speed is convenient to adjust.
In another preferred embodiment of the invention, two support arms are arranged on the ejector rod support, ejector rod guide sleeves are arranged on the support arms, and the discharging ejector rod is inserted into the ejector rod support through the ejector rod guide sleeves. By adopting the embodiment, the ejector rod support can provide good support for the discharging ejector rod, and can flexibly generate displacement of the discharging ejector rod under the guidance of the ejector rod guide sleeve when abnormal conditions occur.
In another preferred embodiment of the present invention, a positioning arm is disposed on the ejector rod support, the positioning arm is located between the two support arms, and the elastic retractable pin is disposed on the positioning arm. By adopting the embodiment, the span between the two support arms is relatively large, the effective support can be provided for the discharging ejector rod, the occupied space cannot be increased due to the arrangement of the positioning arm, and the installation of the elastic telescopic pin can be facilitated.
In a further preferred embodiment of the present invention, the inner end of the elastic retractable pin is inserted into the pin sleeve, a spring is disposed between the elastic retractable pin and the pin sleeve, and the pin sleeve is screwed on the positioning arm on the top rod support. By adopting the embodiment, the acting force of the elastic telescopic pin on the discharging ejector rod can be conveniently adjusted by adjusting the pin sleeve, so that the bearing capacity of the discharging ejector rod on the abnormal axial force can be regulated and controlled, and the working reliability of the discharging ejector rod is ensured.
In another further preferred embodiment of the present invention, the positioning pin groove is an annular groove arranged along the circumference of the discharging ejector rod, and the section of the annular groove is V-shaped. By adopting the embodiment, the positioning pin groove is convenient to manufacture, the discharging ejector rod does not need circumferential positioning during installation, when the discharging ejector rod receives abnormal axial force, the elastic telescopic pin can generate acting component force along the axial direction of the elastic telescopic pin, so that the elastic telescopic pin retracts to be separated from the positioning pin groove, and the discharging ejector rod can axially displace.
In yet a further preferred embodiment of the present invention, the outer end of the elastic telescopic pin is formed in a hemispherical shape. By adopting the embodiment, the elastic telescopic pin can conveniently retract after receiving the acting force of the discharging ejector rod.
In a further preferred embodiment of the present invention, the ejector position detecting sensor is a proximity switch located on the rear side of the rear end of the discharging ejector. By adopting the embodiment, the rear end of the discharging ejector rod can be used as the inductor of the proximity switch, and the inductor does not need to be additionally arranged on the discharging ejector rod.
In a further preferred embodiment of the present invention, the push rod driving means is a cylinder mounted on the frame. By adopting the embodiment, the push rod driving device has a simple structure and sensitive and quick action, and can meet the requirement of the positioning push rod on the synchronization of the positioning process of the valve and the clamping process of the valve.
In a further preferred embodiment of the present invention, the dressing spindle base is mounted on a dressing spindle slide movably supported on the grinding wheel dressing base by a dressing feed rail. With this embodiment, the dressing spindle base is movably supported on the grinding wheel dressing base by the dressing spindle slide, which facilitates the manufacture of the dressing spindle base.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of one embodiment of the grinding machine for one-step forming of the valve of the present invention;
FIG. 2 is a schematic view of the construction of the workpiece spindle and associated components of the construction of FIG. 1;
FIG. 3 is a top view of the structure shown in FIG. 2;
FIG. 4 is a cross-sectional view taken at location A-A of the structure shown in FIG. 3;
FIG. 5 is a cross-sectional view taken at B-B of the structure shown in FIG. 3;
FIG. 6 is a schematic structural view of the carrier rod support and related components of the structure shown in FIG. 2;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a cross-sectional view taken at the location C-C in FIG. 7;
FIG. 9 is an enlarged partial view of portion I of the structure of FIG. 1;
FIG. 10 is a schematic view of the construction of the grinding wheel spindle and associated components of the construction of FIG. 1;
FIG. 11 is a top view of FIG. 10;
fig. 12 is a cross-sectional view taken at D-D in the configuration of fig. 11.
In the figure: 1-a machine frame, 2-a feeding conveying device, 3-a workpiece spindle, 4-a discharging conveying device, 5-a valve to be ground, 6-a charging positioning push rod, 7-a forming grinding wheel, 8-a grinding wheel spindle, 9-a workpiece spindle moving driving device, 10-a workpiece spindle support, 11-a workpiece spindle sliding table, 12-a push rod support, 13-a servo motor, 14-a toothed belt transmission pair, 15-a workpiece spindle support, 16-an elastic chuck, 17-a discharging push rod, 18-a pipe drawing driving device, 19-a workpiece spindle guide rail, 20-a drawing pipe, 21-a ball screw nut pair, 22-a supporting arm, 23-a push rod position detection sensor, 24-a positioning arm, 25-a pin sleeve, 26-a push rod guide sleeve, a positioning rod, a positioning, 27-spring, 28-elastic telescopic pin, 29-positioning pin slot, 30-push rod driving device, 31-grinding wheel seat, 32-grinding wheel axle seat, 33-finishing spindle seat, 34-finishing wheel spindle, 35-forming finishing wheel, 36-finishing spindle sliding seat, 37-grinding wheel sliding seat, 38-grinding wheel finishing seat, 39-finishing feed motor, 40-grinding wheel feed motor, 41-ball screw nut pair, 42-finishing feed guide rail and 43-grinding wheel feed guide rail.
Detailed Description
In the valve one-step forming grinder shown in fig. 1, a frame 1 is a basic supporting member of the valve grinding equipment, a feeding conveying device 2, a hollow workpiece spindle 3, a grinding wheel spindle 8 and a discharging conveying device 4 are supported on the frame 1, a valve 5 to be ground is conveyed to the front end of the workpiece spindle 3 by the feeding conveying device 2, the workpiece spindle 3 is positioned, clamped and rotated with the aid of a feeding positioning push rod 6, a forming grinding wheel mounted on the grinding wheel spindle 8 forms and grinds the head of the valve 5 to be ground, and the ground valve is output by the discharging conveying device 4.
As shown in fig. 2, 3 and 4, the workpiece spindle 3 is a hollow tubular member, an elastic chuck 16 is arranged at the front end of an inner hole of the workpiece spindle 3, a pull tube 20 is connected to the rear end of the elastic chuck 16, the pull tube 20 is connected to a pull tube driving device 18, the pull tube driving device 18 drives the elastic chuck 16 to move back and forth along the axial direction through the pull tube 20, so that the elastic chuck 16 can clamp a rod part of the valve 5 to be ground when moving back, the valve part can be loosened when moving forward, a discharging ejector rod 17 is inserted into the inner hole of the elastic chuck 16, and the rear end of the discharging ejector rod 17 is mounted on the frame 1 through an ejector rod support 12; the workpiece spindle 3 is rotatably supported on a workpiece spindle seat 15, the workpiece spindle seat 15 is arranged on a workpiece spindle sliding table 11, the workpiece spindle 3 is in transmission connection with a servo motor 13 through a toothed belt transmission pair 14, and the servo motor 13 is arranged on the workpiece spindle sliding table 11; the workpiece main shaft sliding table 11 is movably supported on the workpiece main shaft support 10 through a workpiece main shaft guide rail 19, the length direction of the workpiece main shaft guide rail 19 is parallel to the axis of the workpiece main shaft 3, the workpiece main shaft guide rail 19 is preferably a linear guide rail pair, and the workpiece main shaft sliding table 11 is movably supported on the workpiece main shaft support 10 through two linear guide rail pairs; the workpiece spindle sliding table 11 is in transmission connection with the workpiece spindle movement driving device 9, the workpiece spindle movement driving device 9 can enable the workpiece spindle 3 to move back and forth through the workpiece spindle sliding table 11, when the workpiece spindle 3 moves forward, an inner hole of an elastic chuck 16 in the workpiece spindle 3 can be sleeved on a rod portion of the valve 5 to be ground, when the workpiece spindle 3 moves backward, the elastic chuck 16 is separated from the valve 5 to be ground, when the workpiece spindle 3 moves backward, the front end of a discharge ejector rod 17 is located outside the elastic chuck 16, as shown in fig. 5, preferably, the workpiece spindle movement driving device 9 is a servo motor, the workpiece spindle sliding table 11 is in transmission connection with the workpiece spindle movement driving device 9 through a ball screw nut pair 21, and the workpiece spindle support 10 is installed on the machine frame 1.
As shown in fig. 6 and 7, the discharging ejector rod 17 is inserted into the ejector rod support 12, an ejector rod position detecting sensor 23 is provided between the ejector rod support 12 and the discharging ejector rod 17, referring to fig. 8, a positioning pin groove 29 is provided on the discharging ejector rod 17, an elastic telescopic pin 28 is provided on the ejector rod support 12, an outer end of the elastic telescopic pin 28 is inserted into the positioning pin groove 29, as a preferred embodiment, two support arms 22 are provided on the ejector rod support 12, an ejector rod guide sleeve 26 is provided on the support arm 22, the discharging ejector rod 17 is inserted into the ejector rod support 12 through the ejector rod guide sleeve 26, a positioning arm 24 is provided on the ejector rod support 12, the positioning arm 24 is located between the two support arms 22, the two elastic telescopic pins 28 are respectively provided on the positioning arm 24 through corresponding pin sleeves 25, an inner end of the elastic telescopic pin 28 is inserted into the pin sleeve 25, a compression spring 27 is provided between the elastic telescopic pin 28 and the pin sleeves 25, the pin sleeve 25 is screwed on the positioning arm 24 on the ejector rod support 12, the two pin sleeves 25 are respectively screwed on the upper side and the lower side of the positioning arm 24, the positioning pin groove 29 is an annular groove arranged along the circumferential direction of the discharging ejector rod 17, the cross section of the annular groove is V-shaped, the outer end of the elastic telescopic pin 28 which is spliced with the positioning pin groove 29 is hemispherical, the two side surfaces of the positioning pin groove 29 with the V-shaped cross section are tangent with the outer end of the elastic telescopic pin 28 which is hemispherical, the ejector rod position detection sensor 23 is a proximity switch, and the proximity switch is positioned on the rear side of the rear end of the discharging ejector rod 17.
Referring to fig. 9, a charging positioning push rod 6 is arranged at the front end of the workpiece spindle 3, the charging positioning push rod 6 is arranged coaxially with the workpiece spindle 3, the minimum distance between the outer end face of the charging positioning push rod 6 and the front end face of the discharging ejector rod 17 corresponds to the length of the valve 5 to be ground, the charging positioning push rod 6 is mounted on the frame 1 through a push rod driving device 30, and the push rod driving device 30 is a cylinder mounted on the frame 1.
As shown in fig. 10, 11 and 12, the formed grinding wheel 7 is mounted at the front end of a grinding wheel spindle 8, the axis of the grinding wheel spindle 8 is parallel to the axis of the workpiece spindle 3, the grinding wheel spindle 8 is rotatably supported on a grinding wheel spindle seat 32, the grinding wheel spindle 8 can be directly an electric spindle or can be driven by a grinding wheel motor to operate, the grinding wheel spindle seat 32 is mounted on a grinding wheel slide seat 37, the grinding wheel slide seat 37 is movably supported on a grinding wheel seat 31 through a grinding wheel feeding guide rail 43, the grinding wheel feeding guide rail 43 is preferably a linear guide rail pair, the grinding wheel slide seat 37 is movably supported on the grinding wheel seat 31 through two linear guide rail pairs, the length direction of the grinding wheel feeding guide rail 43 is vertically crossed with the axis of the grinding wheel spindle 8, the grinding wheel slide seat 37 is in transmission connection with a grinding wheel feeding motor 40, the grinding wheel slide seat 37 is preferably in transmission connection with the grinding wheel feeding motor 40 through a ball screw nut pair 41, the grinding wheel feeding motor 40 is a servo motor, the grinding wheel feed motor 40 is installed on the grinding wheel seat 31, and the grinding wheel seat 31 is installed on the frame 1.
A dressing wheel spindle 34 is further arranged on the grinding wheel slide seat 37, the dressing wheel spindle 34 is arranged in parallel with the grinding wheel spindle 8, a forming dressing wheel 35 is arranged at the front end of the dressing wheel spindle 34, the axial position of the forming dressing wheel 35 corresponds to the position of a forming grinding wheel 7 arranged on the grinding wheel spindle 8, the dressing wheel spindle 34 is rotatably supported on a dressing spindle seat 33, the dressing spindle seat 33 is movably supported on a grinding wheel dressing seat 38 through a dressing feed guide rail 42, the grinding wheel dressing seat 38 is arranged on the grinding wheel slide seat 37, the length direction of the dressing feed guide rail 42 is vertically crossed with the axial line of the dressing wheel spindle 34, the dressing spindle seat 33 is in transmission connection with a dressing feed motor 39, as a preferred embodiment, the dressing spindle seat 33 is arranged on the dressing spindle slide seat 36, the dressing spindle slide seat 36 is movably supported on the grinding wheel dressing seat 38 through the dressing feed guide rail 42, the dressing feed guide rail 42 is a linear guide rail pair, the dressing spindle slide 36 is movably supported on the grinding wheel dressing seat 38 through two linear guide rail pairs, the dressing spindle slide 36 is in transmission connection with a dressing feed motor 39 through a ball screw nut pair 41, and the dressing feed motor 39 is a servo motor which is installed on the grinding wheel dressing seat 38.
The above only illustrates some preferred embodiments of the present invention, but the present invention is not limited thereto and many modifications and changes can be made. For example, the positioning pin groove 29 may be a tapered hole groove provided on the circumferential surface of the discharge carrier rod 17 instead of an annular groove provided along the circumferential direction of the discharge carrier rod 17, and the position of the tapered hole groove corresponds to the position of the elastic retractable pin 28, and the outer end of the elastic retractable pin 28 is inserted into the tapered hole groove. Therefore, any modification and variation based on the basic principle of the present invention should be considered as falling within the protection scope of the present invention.
Claims (10)
1. A valve one-step forming grinding machine comprises a machine frame (1), a feeding conveying device (2), a discharging conveying device (4), a hollow workpiece spindle (3), a grinding wheel spindle (8) and a dressing wheel spindle (34), wherein the workpiece spindle (3) is rotatably supported on a workpiece spindle seat (15), an elastic chuck (16) is arranged at the front end of an inner hole of the workpiece spindle (3), the rear end of the elastic chuck (16) is connected with a pull pipe (20), the pull pipe (20) is connected with a pull pipe driving device (18), the grinding wheel spindle (8) is rotatably supported on a grinding wheel spindle seat (32), the grinding wheel spindle seat (32) is installed on a grinding wheel sliding seat (37), the grinding wheel sliding seat (37) is movably supported on the grinding wheel seat (31) through a grinding wheel feeding guide rail (43), the grinding wheel sliding seat (37) is in transmission connection with a grinding wheel feeding motor (40), the grinding wheel seat (31) is installed on the machine frame (1), the method is characterized in that: the workpiece spindle seat (15) is arranged on the workpiece spindle sliding table (11), the workpiece spindle sliding table (11) is movably supported on the workpiece spindle support (10) through a workpiece spindle guide rail (19), the length direction of the workpiece spindle guide rail (19) is parallel to the axis of the workpiece spindle (3), the workpiece spindle sliding table (11) is in transmission connection with a workpiece spindle movement driving device (9), and the workpiece spindle support (10) is arranged on the rack (1); a discharge ejector rod (17) is inserted into an inner hole of the elastic chuck (16), the discharge ejector rod (17) is installed on the rack (1) through an ejector rod support (12), a positioning pin groove (29) is formed in the discharge ejector rod (17), an elastic telescopic pin (28) is arranged on the ejector rod support (12), the outer end of the elastic telescopic pin (28) is inserted into the positioning pin groove (29), and an ejector rod position detection sensor (23) is arranged between the ejector rod support (12) and the discharge ejector rod (17); a charging positioning push rod (6) is arranged at the front end of the workpiece main shaft (3), the minimum distance between the outer end surface of the charging positioning push rod (6) and the front end surface of the discharging ejector rod (17) corresponds to the length of the valve (5) to be ground, and the charging positioning push rod (6) is installed on the rack (1) through a push rod driving device (30); the axis of the grinding wheel spindle (8) is parallel to the axis of the workpiece spindle (3), and the length direction of the grinding wheel feeding guide rail (43) is perpendicular to the axis of the grinding wheel spindle (8); the grinding wheel spindle (34) is rotatably supported on a grinding wheel dressing seat (33), the dressing spindle seat (33) is movably supported on a grinding wheel dressing seat (38) through a dressing feed guide rail (42), the grinding wheel dressing seat (38) is installed on a grinding wheel sliding seat (37), the length direction of the dressing feed guide rail (42) is perpendicular to the axis of the dressing wheel spindle (34), the dressing spindle seat (33) is in transmission connection with a dressing feed motor (39), the dressing wheel spindle (34) is parallel to the grinding wheel spindle (8), a forming dressing wheel (35) is installed on the dressing wheel spindle (34), and the axial position of the forming dressing wheel (35) corresponds to the position of a forming grinding wheel (7) installed on the grinding wheel spindle (8).
2. The valve one-shot forming grinding machine of claim 1, characterized in that: the workpiece spindle (3) is in transmission connection with a servo motor (13) through a toothed belt transmission pair (14), and the servo motor (13) is installed on the workpiece spindle sliding table (11).
3. The valve one-shot forming grinding machine of claim 1, characterized in that: two supporting arms (22) are arranged on the ejector rod support (12), an ejector rod guide sleeve (26) is arranged on each supporting arm (22), and the discharging ejector rod (17) is inserted into the ejector rod support (12) through the ejector rod guide sleeve (26).
4. The valve one-shot forming grinding machine of claim 3, characterized in that: the ejector rod support (12) is provided with a positioning arm (24), the positioning arm (24) is positioned between the two support arms (22), and the elastic telescopic pin (28) is arranged on the positioning arm (24).
5. The valve one-shot forming grinding machine of claim 1 or 4, characterized in that: the inner end of the elastic telescopic pin (28) is inserted into the pin sleeve (25), a spring (27) is arranged between the elastic telescopic pin (28) and the pin sleeve (25), and the pin sleeve (25) is screwed on the positioning arm (24) on the ejector rod support (12).
6. The valve one-shot forming grinding machine of claim 1, characterized in that: the positioning pin groove (29) is an annular groove arranged along the circumferential direction of the discharging ejector rod (17), and the section of the annular groove is V-shaped.
7. The valve one-shot forming grinding machine of claim 1, characterized in that: the outer end of the elastic telescopic pin (28) is hemispherical.
8. The valve one-shot forming grinding machine of claim 1, characterized in that: the ejector rod position detection sensor (23) is a proximity switch which is positioned at the rear side of the rear end of the discharging ejector rod (17).
9. The valve one-shot forming grinding machine of claim 1, characterized in that: the push rod driving device (30) is an air cylinder arranged on the frame (1).
10. The valve one-shot forming grinding machine of claim 1, characterized in that: the dressing spindle seat (33) is mounted on a dressing spindle slide (36), and the dressing spindle slide (36) is movably supported on a grinding wheel dressing seat (38) through a dressing feed guide rail (42).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111300207.7A CN113894656B (en) | 2021-11-04 | 2021-11-04 | One-step forming grinder for air valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111300207.7A CN113894656B (en) | 2021-11-04 | 2021-11-04 | One-step forming grinder for air valve |
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| CN113894656A true CN113894656A (en) | 2022-01-07 |
| CN113894656B CN113894656B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111300207.7A Active CN113894656B (en) | 2021-11-04 | 2021-11-04 | One-step forming grinder for air valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283459A (en) * | 2023-09-15 | 2023-12-26 | 广东豪特曼机床股份有限公司 | Shaping grinding wheel dressing equipment for piston ring grinding processing and dressing method thereof |
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| CN201645272U (en) * | 2010-03-25 | 2010-11-24 | 陕西汉江机床有限公司 | Numerical-control wire guiding roller grinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117283459A (en) * | 2023-09-15 | 2023-12-26 | 广东豪特曼机床股份有限公司 | Shaping grinding wheel dressing equipment for piston ring grinding processing and dressing method thereof |
| CN117283459B (en) * | 2023-09-15 | 2024-05-17 | 广东豪特曼机床股份有限公司 | Shaping grinding wheel dressing equipment for piston ring grinding processing and dressing method thereof |
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|---|---|
| CN113894656B (en) | 2023-06-27 |
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