CN116852221A - High-precision numerical control grinding machine and working method thereof - Google Patents

High-precision numerical control grinding machine and working method thereof Download PDF

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Publication number
CN116852221A
CN116852221A CN202310924596.3A CN202310924596A CN116852221A CN 116852221 A CN116852221 A CN 116852221A CN 202310924596 A CN202310924596 A CN 202310924596A CN 116852221 A CN116852221 A CN 116852221A
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CN
China
Prior art keywords
side plate
assembly
pipe fitting
sliding
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310924596.3A
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Chinese (zh)
Inventor
朱晨熙
蒋健
王海阔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Fengshun Technology Co ltd
Original Assignee
Beijing Fengshun Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Fengshun Technology Co ltd filed Critical Beijing Fengshun Technology Co ltd
Priority to CN202310924596.3A priority Critical patent/CN116852221A/en
Publication of CN116852221A publication Critical patent/CN116852221A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • 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
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
    • 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
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
    • 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
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • 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

Abstract

The invention discloses a high-precision numerically controlled grinder and a working method thereof, and relates to the technical field of numerically controlled grinders, the numerically controlled grinder comprises a lathe bed and a frame fixed on the top surface of the lathe bed, wherein the frame comprises an L-shaped side plate fixed on one side of the top surface of the lathe bed and a vertical side plate fixed on one end of the L-shaped side plate, and a channel for placing a grinding tool is formed between the L-shaped side plate and the vertical side plate; the abrasive article comprises: the driving wheel is fixedly arranged at the top part between the L-shaped side plate and the vertical side plate, and a first motor connected with the driving wheel is arranged at one side of the L-shaped side plate, which is opposite to the vertical side plate; the adjusting wheels are provided with two groups, the two groups are respectively arranged at two ends of the channel, and a first screw rod adjusting assembly for driving the two adjusting wheels to reversely move is arranged on one side surface of the L-shaped side plate, which faces the vertical side plate. The invention can enlarge the contact area of the abrasive belt and the pipe fitting, and further the grinding pressure between the abrasive belt and the pipe fitting is larger, thereby improving the grinding precision and the grinding efficiency of the pipe fitting.

Description

High-precision numerical control grinding machine and working method thereof
Technical Field
The invention relates to the technical field of numerically controlled grinding machines, in particular to a high-precision numerically controlled grinding machine and a working method thereof.
Background
The numerical control grinder is a machine tool for grinding a workpiece surface by using a grinding tool through a numerical control technology, most of the grinding tools are grinding processing by using a grinding wheel rotating at a high speed, and a few of the grinding tools are processing by using other grinding tools such as oilstones, abrasive belts and the like and free abrasive materials, such as honing machines, superfinishing machine tools, abrasive belt grinding machines, polishing machines and the like. Among them, the belt sander is an apparatus for grinding and polishing such as blades, vanes, and blades using a fast moving belt as a grinding tool. With the rapid development of grinding technology, belt grinding machines have evolved into high efficiency and low power consumption finishing equipment.
The abrasive belt in the prior numerical control grinding machine consists of abrasive materials and adhesive, and the abrasive materials have different types and granularity and can be used for grinding processing of different materials. The grinding accuracy and surface quality of the grinding machine depend on the grain size and the grinding pressure of the sanding belt. In the prior numerical control grinding machine, when the abrasive belt is adopted to grind the tubular part, the contact grinding of the pipe fitting and the abrasive belt is generally carried out by contacting the straight plane of the abrasive belt with the surface of the pipe fitting and then finishing the grinding treatment of the whole pipe fitting through the rotating pipe fitting.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the contact surface of an abrasive belt and a pipe fitting is small, so that the grinding pressure is small during contact, and the grinding precision and the grinding efficiency are affected.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the high-precision numerically controlled grinder comprises a grinder body and a machine frame fixed on the top surface of the grinder body, wherein the machine frame comprises an L-shaped side plate fixed on one side of the top surface of the grinder body and a vertical side plate fixed on one end of the L-shaped side plate, and a channel for placing a grinding tool is formed between the L-shaped side plate and the vertical side plate;
the abrasive article comprises:
the driving wheel is fixedly arranged at the top part between the L-shaped side plate and the vertical side plate, and a first motor connected with the driving wheel is arranged at one side of the L-shaped side plate, which is opposite to the vertical side plate;
the adjusting wheels are provided with two groups which are respectively arranged at two ends of the channel, and a side surface of the L-shaped side plate, which faces the vertical side plate, is provided with a first screw rod adjusting component for driving the two adjusting wheels to reversely move;
the tensioning induction assembly is arranged on one side of the driving wheel;
the L-shaped side plate is also provided with a second screw rod adjusting assembly for driving the two sliding tightening wheels to reversely move;
the abrasive belt is connected to the outer sides of the driving wheel, the adjusting wheel, the tensioning induction assembly and the sliding tightening wheel;
the utility model discloses a polishing machine, including lathe bed, fixed in the middle of the top surface of lathe bed, be fixed with the flourishing flitch of waiting to polish, and the both sides of flourishing flitch all are equipped with the rotatory tight subassembly that pushes up of tight pipe fitting tip, the top surface of flourishing flitch is equipped with the arc recess, and the one end of two rotatory tight subassemblies that push up all is equipped with the drive telescopic assembly that plays the support, installs light sensor between one of them a set of drive telescopic assembly and one side of one of them slip tight wheel, the lifting unit who connects two drive telescopic assembly is installed to the below top surface slidable mounting of lathe bed, the control panel of electricity connection tensioning sensing assembly, first motor, rotatory tight subassembly, light sensor, lifting unit and drive telescopic assembly is installed to the lateral surface of perpendicular curb plate.
Preferably, the middle part of the inner side surface of the L-shaped side plate is symmetrically provided with two first side grooves for placing the first screw rod adjusting assembly, two second side grooves for placing the second screw rod adjusting assembly are symmetrically arranged below the two first side grooves, and the inclined upper part of one first side groove and the surface of the transverse corresponding vertical side plate are respectively provided with a third side groove for placing the tensioning sensing assembly.
Preferably, the inner side surface of the vertical side plate transversely corresponds to the first side groove and the second side groove guide groove, wherein one ends of the adjusting wheel and the sliding tightening wheel, which are far away from the vertical part of the L-shaped side plate, are both supported in the guide groove.
Preferably, the tensioning sensing assembly comprises a sliding block, a sliding rod, a tensioning wheel and a tensioning spring, wherein the sliding block is arranged in the third side groove in a matched mode, the sliding rod penetrates through the sliding block in a sliding mode, the tensioning wheel is connected between the two sliding blocks in a rotating mode, the tensioning spring is sleeved on the outer side of the sliding rod, one end, far away from the sliding block, of the sliding rod is connected with a pressure sensing block fixed on the inner wall of the third side groove, one end of the tensioning spring abuts against the surface of the pressure sensing block, and a pressure sensor electrically connected with the control panel is arranged in the pressure sensing block.
Preferably, a horizontal bottom plate is further fixed below the lathe bed, a screw is rotationally connected between the middle part of the bottom plate and the top of the lathe bed, the screw is in threaded fit with the lifting component, and the bottom end of the screw is connected with a hand-operated component extending to the side edge of the lathe bed.
Preferably, the lifting assembly comprises a U-shaped frame which is connected to two sides of the top surface of the lathe bed in a sliding manner and first electric push rods which are fixed at two ends of the U-shaped frame, screw holes which are matched with the screw rods are formed in the middle of the U-shaped frame, and the first electric push rods are electrically connected with the control panel.
Preferably, the driving telescopic component comprises a side support plate fixed at the top of the first electric push rod and a second electric push rod arranged on one side surface of the side support plate, which faces to the material containing plate, and the fixed end of the second electric push rod is vertically embedded at the top of the side support plate.
Preferably, the rotary jacking component comprises a second motor fixed at one end of the second electric push rod and a fixed column fixed at the other end of the second electric push rod, the output shaft of the second motor and the end of the fixed column are both connected with a rotary table, a push rod is vertically fixed at the center of one side surface of the rotary table, a sleeve inserted into a pipe fitting is sleeved at the outer side of the push rod, a buffer spring is sleeved on the push rod between the sleeve and the rotary table, a plurality of wedge blocks are arranged in the sleeve, and a jacking block connected with the wedge blocks is sleeved at the outer side of the sleeve.
Preferably, the end part of the ejector rod, which is positioned in the sleeve, is conical and corresponds to the oblique sides of the wedge blocks, a buffer spring is also arranged between the wedge blocks and the inner wall of the sleeve, the jacking block is arc-shaped, a through groove matched with the jacking block is formed in the surface of the sleeve, and a connecting rod penetrating through the through groove is connected between the jacking block and the wedge blocks.
The working method of the high-precision numerical control grinding machine comprises the following steps of:
s1, placing a pipe fitting in an arc-shaped groove of a material containing plate, and determining the radius of the pipe fitting to be polished;
s2, adjusting the height of the lifting assembly to enable the rotary jacking assembly fixed at the top of the lifting assembly to coaxially correspond to the inner cavity of the pipe fitting;
s3, starting the driving telescopic assembly, and tightly jacking and fixing the two ends of the pipe fitting by the two rotary jacking assemblies;
s4, starting the lifting assembly, driving the clamped pipe fitting to move upwards by the lifting assembly, enabling the top surface of the pipe fitting to contact with the abrasive belt, pushing the abrasive belt upwards until the axis of the pipe fitting corresponds to the axis of the sliding pushing wheel, and controlling the lifting assembly to stop by a control panel through a signal transmitted by the optical sensor;
s5, when the tensioning induction assembly senses that the tensioning strength of the abrasive belt changes, the first screw rod adjusting assembly is started to enable the two adjusting wheels to move in opposite directions by a distance X, and then the second screw rod adjusting assembly is started to enable the two sliding tightening wheels to move by a distance Y, and the abrasive belt is propped between the sliding tightening wheels and the pipe fitting;
s6, starting the first motor and the second motor, enabling the first motor to drive the abrasive belt to rotate, enabling the second motor to drive the pipe fitting to rotate, and starting to polish the surface of the pipe fitting rapidly.
Compared with the prior art, the invention has the following advantages:
according to the invention, the two movable adjusting wheels and the sliding tightening wheels are arranged, and the lifting assembly drives the pipe fitting to be polished to ascend, so that the axes of the pipe fitting and the sliding tightening wheels can be horizontal in the ascending process of the pipe fitting, when the other two adjusting wheels and the two sliding tightening wheels move, the pipe fitting is polished by the abrasive belt horizontally to become an arc abrasive belt, the contact area of the abrasive belt and the pipe fitting is enlarged, the grinding pressure between the abrasive belt and the pipe fitting is further increased, and the grinding precision and the grinding efficiency of the pipe fitting are improved;
in addition, the distance between the adjusting wheel and the sliding tightening wheel can be input by the control panel according to the radius of the pipe fitting in the process of placing and polishing, so that the whole pipe fitting can be automatically carried out in the process of polishing the pipe fitting, manual adjustment is not needed, and the whole grinding efficiency is further improved;
and finally, the pipe fitting is placed in the arc-shaped groove of the material containing plate, the two rotary jacking components are driven to lift by the lifting component, and the lifting mechanism is driven to lift by the screw rod and the hand-operated component, so that when the diameter of the pipe fitting changes, the height of the rotary jacking components can be adjusted initially, the adaptation of the rotary jacking components and the pipe fitting is ensured, the jacking of the pipe fitting is realized, and the whole application range is enlarged.
Drawings
FIG. 1 is a schematic diagram of a high-precision numerical control grinder according to the present invention;
FIG. 2 is a schematic view of another view angle structure of a high-precision numerically controlled grinder according to the present invention;
FIG. 3 is a front view of a high-precision numerically controlled grinder according to the present invention in cross-section;
FIG. 4 is a cross-sectional view of a high-precision numerically controlled grinder according to the present invention;
FIG. 5 is an enlarged view of the high precision numerical control grinder of FIG. 3A according to the present invention;
FIG. 6 is a front view of a high-precision numerically controlled grinder according to the present invention;
FIG. 7 is a schematic view of the internal structure of a vertical side plate of the high-precision numerically controlled grinder according to the present invention;
FIG. 8 is a schematic diagram of a lifting assembly of a high-precision numerically controlled grinder according to the present invention;
FIG. 9 is a schematic diagram of a driving telescopic assembly of a high-precision numerically controlled grinder according to the present invention;
FIG. 10 is a cross-sectional view of a rotary tightening assembly of a high-precision numerically controlled grinder according to the present invention;
fig. 11 is a schematic diagram of a grinding structure of a high-precision numerically controlled grinder according to the present invention.
In the figure: 1. a bed body; 2. an L-shaped side plate; 3. a vertical side plate; 4. a control panel; 5. a first motor; 6. a driving wheel; 7. an adjusting wheel; 8. a tension sensing assembly; 9. abrasive belt; 10. a material containing plate; 11. rotating the jacking component; 12. driving the telescopic assembly; 13. a lifting assembly; 14. a bottom plate; 15. a screw; 16. a hand shaking assembly; 17. a first lead screw adjustment assembly; 18. a sliding tightening wheel; 19. a second lead screw adjustment assembly; 20. a pipe fitting; 81. a tensioning wheel; 82. a slide bar; 83. a pressure sensing block; 84. tensioning a spring; 201. a first side groove; 202. a second side groove; 202. a third side groove; 111. a second motor; 112. a turntable; 113. a sleeve; 114. a buffer spring; 115. a tightening block; 116. a push rod; 117. wedge blocks; 118. a connecting rod; 121. a side support plate; 122. a second electric push rod; 131. a U-shaped frame; 132. a first electric push rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-4, a high-precision numerically controlled grinder comprises a lathe bed 1 and a frame fixed on the top surface of the lathe bed 1, wherein the frame comprises an L-shaped side plate 2 fixed on one side of the top surface of the lathe bed 1 and a vertical side plate 3 fixed on one end of the L-shaped side plate 2, the L-shaped side plate 2 and the vertical side plate 3 are in an integrated structure, an opening is arranged between the bottom end of the vertical side plate 3 and the lathe bed 1 so as to facilitate the placement and the removal of a pipe fitting, and a channel for placing a grinding tool is formed between the L-shaped side plate 2 and the vertical side plate 3;
wherein, the grinding apparatus includes:
the driving wheel 6 is fixedly arranged at the top between the L-shaped side plate 2 and the vertical side plate 3, a first motor 5 connected with the driving wheel 6 is arranged on one side of the L-shaped side plate 2, which is opposite to the vertical side plate 3, and the driving wheel 6 is driven to rotate in the channel when the first motor 5 rotates;
the adjusting wheels 7 are provided with two groups which are respectively arranged at two ends of the channel, and a side surface of the L-shaped side plate 2, which faces the vertical side plate 3, is provided with a first screw rod adjusting component 17 for driving the two adjusting wheels 7 to reversely move;
a tension sensing assembly 8 provided at one side of the driving wheel 6;
the two groups of sliding jacking wheels 18 are arranged at two ends between the two adjusting wheels 7, and a second screw rod adjusting assembly 19 for driving the two sliding jacking wheels 18 to reversely move is also arranged on the L-shaped side plate 2;
and the abrasive belt 9 is connected to the outer sides of the driving wheel 6, the adjusting wheel 7, the tensioning induction assembly 8 and the sliding tightening wheel 18 and is positioned in the middle position in the channel, so that the abrasive belt 9 can be driven by the driving wheel 6 to rotate around the adjusting wheel 7, the tensioning induction assembly 8 and the sliding tightening wheel 18 at a high speed when the first motor 5 works.
The middle of the top surface of the lathe bed 1 is fixedly provided with a containing plate 10 for placing a pipe 20 to be polished, the containing plate 10 is located in the middle between two sliding tight wheels 18, rotating tight components 11 for pushing up the end of the pipe 20 are arranged on two sides of the containing plate 10, the top surface of the containing plate 10 is provided with an arc-shaped groove, the pipe is placed in the arc-shaped groove and can slide to the lowest part of the arc-shaped groove, so that the pipe is always located in the middle of the containing plate 10, one ends of the two rotating tight components 11 are provided with supporting driving telescopic components 12, a light sensor is arranged between one group of driving telescopic components 12 and one side surface of one sliding tight wheel 18, the light sensor comprises a transmitter and a receiver, the light sensor is respectively arranged on one side of the driving telescopic components 12 and one side of the sliding tight wheels 18, when the driving telescopic components 12 are lifted to the axis of the pipe 20 and the sliding tight wheels 18, a lifting component 13 for connecting the two driving telescopic components 12 is slidably arranged on the lower top surface of the lathe bed 1, the outer side surface of the vertical side plate 3 is provided with a driving telescopic component 12 which is electrically connected with a tensioning motor sensing component 8, a first jacking component 5, a rotating telescopic component 11, a lifting control panel 13 and a lifting control panel 4 can be correspondingly controlled by the driving telescopic components, and a control signal can be simultaneously sent by a control program 4, and the control signal can be adjusted.
Referring to fig. 3-5,L, two first side grooves 201 for placing the first screw adjusting component 17 are symmetrically formed in the middle of the inner side surface of the side plate 2, two second side grooves 202 for placing the second screw adjusting component 19 are symmetrically formed below the two first side grooves 201, the first screw adjusting component 17 and the second screw adjusting component 19 are both composed of a double-end screw and a servo motor, two ends of the adjusting wheel 7 and the sliding tightening wheel 18 are respectively connected with screw nut blocks sleeved on the double-end screw, so that when the double-end screw rotates, the two adjusting wheels 7 move in opposite directions and the two sliding tightening wheels 18 move in opposite directions, and a third side groove 203 for placing the tensioning sensing component 8 is formed above one first side groove 201 and on the surface of the corresponding transverse vertical side plate 3, and stability of the tensioning sensing component 8 is ensured when the abrasive belt 9 is tensioned.
Referring to fig. 3-5, the tensioning sensing assembly 8 includes a sliding block fitted in the third side groove 203, a sliding rod 82 sliding through the sliding block, a tensioning wheel 81 rotatably connected between the two sliding blocks, and a tensioning spring 84 sleeved outside the sliding rod 82, wherein one end of the sliding rod 82 far away from the sliding block is connected with a pressure sensing block 83 fixed on the inner wall of the second side groove 202, one end of the tensioning spring 84 abuts against the surface of the pressure sensing block 83, and a pressure sensor electrically connected with the control panel 4 is arranged in the pressure sensing block 83, during the running process of the abrasive belt 9, the tensioning effect is provided for the abrasive belt 9 by compression and rebound of the tensioning spring 84, and when the bottom of the abrasive belt 9 is pushed upwards by the pipe 20, the overall length of the abrasive belt 9 is unchanged at this time, so that the sliding block is pushed to squeeze the tensioning spring 84, and further, the pressure sensor senses a larger pressure change, and further judges whether the pipe 20 is in contact with the abrasive belt 9 when lifted upwards.
Referring to fig. 4-7, in order to ensure the stability of the movement of the adjusting wheel 7 and the sliding tightening wheel 18, the inner side surface of the vertical side plate 3 transversely corresponds to the guide grooves of the first side groove 201 and the second side groove 202, the adjusting wheel 7 is matched with the screw nut blocks at the two ends of the sliding tightening wheel 18 in the guide grooves, so that one ends of the adjusting wheel 7 and the sliding tightening wheel 18, which are far away from the vertical part of the L-shaped side plate 2, are supported in the guide grooves, the adjusting wheel 7 and the sliding tightening wheel 18 are stable in movement, and in order to reduce the friction force of the screw nut blocks in the guide grooves, smooth round bars can be installed in the guide grooves to penetrate the screw nut blocks, and the smooth round bars provide support and guide for the screw nut blocks.
Referring to fig. 6-7, a horizontal bottom plate 14 is fixed below the machine body 1, a screw 15 is rotatably connected between the middle part of the bottom plate 14 and the top of the machine body 1, the screw 15 is in a central position, the screw 15 is in threaded fit with the lifting assembly 13, the bottom end of the screw 15 is connected with a hand-operated assembly 16 extending to the side edge of the machine body 1, the hand-operated assembly 16 comprises a crank, a transmission rod, a rotating shaft and two bevel gears, wherein the rotating shaft is fixedly connected to the bottom end of the screw 15, the rotating shaft is vertically arranged with the transmission rod, the two bevel gears are meshed and are respectively arranged on the rotating shaft and the transmission rod, the crank is connected to the end part of the transmission rod and is positioned at the side edge of the machine body 1, so that the transmission rod is conveniently rotated by the crank, the bevel gears drive the rotating shaft, and finally the screw 15 is driven to rotate, and lifting of the lifting assembly 13 is driven.
Referring to fig. 8, the lifting assembly 13 includes a U-shaped frame 131 slidably connected to both sides of the top surface of the bed 1 and first electric push rods 132 fixed to both ends of the U-shaped frame 131, screw holes adapted to the screw rods 15 are formed in the middle of the U-shaped frame 131, and both ends of the U-shaped frame 131 are limited while sliding on the bed 1, so that when the screw rods 15 rotate, the U-shaped frame 131 can be lifted, the first electric push rods 132 are electrically connected to the control panel 4, and the expansion and contraction of the first electric push rods 132 can be controlled by the control panel 4.
Referring to fig. 7 and 9, the driving telescopic assembly 12 includes a side support plate 121 fixed on the top of a first electric push rod 132, and a second electric push rod 122 installed on one side surface of the side support plate 121 facing the material containing plate 10, where the first electric push rod 132 stretches and contracts to drive the lifting of the side support plate 121, and the fixed end of the second electric push rod 122 is vertically embedded in the top of the side support plate 121. And the second electric push rod 122 is electrically connected with the control panel 4, so that the control panel 4 controls the second electric push rod 122 to stretch and retract.
Referring to fig. 7 and 9-10, the rotary jacking assembly 11 includes a second motor 111 fixed at the end of one second electric push rod 122 and a fixed column fixed at the end of the other second electric push rod 122, both the output shaft of the second motor 111 and the end of the fixed column are connected with a turntable 112, a push rod 116 is vertically fixed at the center of one side surface of the turntable 112, a sleeve 113 inserted into the pipe 20 is sleeved on the outer side of the push rod 116, a buffer spring 114 is sleeved on the push rod 116 between the sleeve 113 and the turntable 112, a plurality of wedge blocks 117 are arranged in the sleeve 113, a jacking block 115 connected with the wedge blocks 117 is sleeved on the outer side of the sleeve 113, wherein the second motor 111 is fixedly connected with the turntable 112, and the fixed column is rotationally connected with the turntable 112, so that under the condition that one second motor 111 is arranged, the turntable 112 can be driven to rotate, and then the pipe 20 can be driven to rotate when the sleeve 113 and the jacking block 115 jacks the pipe 20.
The end of the ejector rod 116, which is located in the sleeve 113, is tapered and corresponds to the inclined edges of the plurality of wedge blocks 117, when the ejector rod 116 is inserted inwards, the wedge blocks 117 can be moved towards the inner wall of the sleeve 113, meanwhile, one end of the sleeve 113, which is far away from the turntable 112, is tapered, the sleeve 113 can be conveniently inserted into the pipe fitting 20, a buffer spring 114 is also arranged between the wedge blocks 117 and the inner wall of the sleeve 113, when the wedge blocks 117 are driven to move by the ejector rod 116, the buffer spring 114 can be compressed, when the ejector rod 116 is not extruded any more, the restoration of the wedge blocks 117 can be realized by the buffer spring 114, the jacking blocks 115 are arc-shaped and can be better abutted against the inner wall of the pipe fitting 20, through grooves matched with the jacking blocks 115 are formed in the surface of the sleeve 113, in normal conditions, the sleeve 113 is conveniently inserted into the pipe fitting 20, a connecting rod 118 penetrating through the through grooves is connected between the jacking blocks 115 and the wedge blocks 117, and a pressure sensor is also arranged on the surface of the jacking blocks 115, which is attached to the inside the pipe fitting 20.
Referring to fig. 1 to 11, a working method of a high-precision numerically controlled grinder includes the steps of:
s1, placing a pipe fitting 20 in an arc-shaped groove of a material containing plate 10, and determining the radius of the pipe fitting 20 to be polished;
s2, adjusting the height of the lifting assembly 13, starting a crank of the hand-operated assembly 16, driving the screw 15 to rotate, driving the U-shaped frame 131 to lift, driving the first electric push rod 132 to lift when the U-shaped frame 131 lifts, driving the top-fixed driving telescopic assembly 12 to lift, and realizing coaxial correspondence or approximate coaxial state of the rotating tightening assembly 11 and the inner cavity of the pipe fitting 20, so as to facilitate the insertion of the sleeve 113 of the rotating tightening assembly 11;
s3, starting a second electric push rod 122 for driving the telescopic component 12, enabling the two second electric push rods 122 to stretch, driving the two rotary jacking components 11 to move towards the pipe fitting 20 until the sleeve 113 is inserted into the pipe fitting 20, and when the two turntables 112 are contacted with the side wall of the pipe fitting 20, enabling the second electric push rod 122 to stretch continuously, enabling the ejector rod 116 to slide into the sleeve 113 until the ejector rod 116 is contacted with the wedge-shaped block 117, jacking the wedge-shaped block 117, enabling the jacking block 115 to move towards the surface of the pipe fitting 20 under the driving of the connecting rod 118 until a pressure sensor on the surface of the jacking block 115 detects that the jacking block 115 is tightly attached to the pipe fitting 20, judging whether the jacking block is tightly attached or not through the pressure detected by the pressure sensor, and enabling the surface of the jacking block 115 to be a rubber layer so as to jack the pipe fitting 20 better;
s4, starting a first electric push rod 132 of the lifting assembly 13, driving the clamped pipe fitting 20 to move upwards by the first electric push rod 132, enabling the top surface of the pipe fitting 20 to be in contact with the abrasive belt 9, and continuously pushing the abrasive belt 9 upwards until the axis of the pipe fitting 20 corresponds to the axis of the sliding tightening wheel 18, wherein at the moment, the optical sensor transmits a signal, and the control panel 4 controls the first electric push rod 132 of the lifting assembly 13 to stop;
s5, when the tensioning induction assembly 8 senses that the tensioning strength of the abrasive belt 9 changes, starting to start the first screw rod adjusting assembly 17 by the control panel 4 to enable the two adjusting wheels 7 to move by a distance X in opposite directions, and then starting the second screw rod adjusting assembly 19 to enable the two sliding jacking wheels 18 to move by a distance Y to enable the abrasive belt 9 to be abutted between the sliding jacking wheels 18 and the pipe fitting 20; here, the travel distance x=1/2 circumference of tube 20+1/4 circumference of sliding tensioner 18, travel distance y= (initially one half of the distance between two sliding tensioner wheels 18-tube 20 diameter-belt 9 thickness);
s6, starting the first motor 5 and the second motor 111, enabling the first motor 5 to drive the abrasive belt 9 to rotate, enabling the second motor 111 to drive the pipe fitting 20 to rotate, starting to polish the surface of the pipe fitting 20 rapidly, after polishing, firstly starting the first electric push rod 132 to shrink to enable the pipe fitting 20 to leave the abrasive belt 9, after restoring to an initial position, enabling the control panel 4 to control the first screw rod adjusting assembly 17 and the second screw rod adjusting assembly 19 again to enable the adjusting wheel 7 and the sliding tightening wheel 18 to restore, and finally shrinking the second electric push rod 122 to enable the rotating tightening assembly 11 to be separated from the pipe fitting 20.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a high accuracy numerically control grinder, includes lathe bed (1) and fixes the frame at lathe bed (1) top surface, its characterized in that: the machine frame comprises an L-shaped side plate (2) fixed on one side of the top surface of the machine body (1) and a vertical side plate (3) fixed on one end of the L-shaped side plate (2), and a channel for placing a grinding tool is formed between the L-shaped side plate (2) and the vertical side plate (3);
the abrasive article comprises:
the driving wheel (6) is fixedly arranged at the top part between the L-shaped side plate (2) and the vertical side plate (3), and a first motor (5) connected with the driving wheel (6) is arranged at one side, back to the vertical side plate (3), of the L-shaped side plate (2);
the adjusting wheels (7) are provided with two groups which are respectively arranged at two ends of the channel, and a first screw rod adjusting assembly (17) for driving the two adjusting wheels (7) to reversely move is arranged on one side surface of the L-shaped side plate (2) facing the vertical side plate (3);
the tensioning induction assembly (8) is arranged on one side of the driving wheel (6);
the L-shaped side plate (2) is also provided with a second screw rod adjusting assembly (19) for driving the two sliding jacking wheels (18) to reversely move;
the abrasive belt (9) is connected to the outer sides of the driving wheel (6), the adjusting wheel (7), the tensioning induction assembly (8) and the sliding tightening wheel (18);
the novel polishing machine is characterized in that a material containing plate (10) for containing a pipe fitting (20) to be polished is fixed in the middle of the top surface of the machine body (1), rotary jacking components (11) at the end parts of the jacking pipe fitting (20) are arranged on two sides of the material containing plate (10), arc grooves are formed in the top surface of the material containing plate (10), driving telescopic components (12) supported by one ends of the two rotary jacking components (11) are arranged, an optical sensor is mounted between one group of driving telescopic components (12) and one side surface of one sliding jacking wheel (18), lifting components (13) connected with the two driving telescopic components (12) are slidably mounted on the top surface below the machine body (1), and a control panel (4) electrically connected with the tensioning sensing components (8), the first motor (5), the rotary jacking components (11), the optical sensor, the lifting components (13) and the driving telescopic components (12) is mounted on the outer side surface of the vertical side surface.
2. The high-precision numerically controlled grinder as set forth in claim 1, wherein the middle of the inner side surface of the L-shaped side plate (2) is symmetrically provided with two first side grooves (201) for placing the first screw rod adjusting assembly (17), two second side grooves (202) for placing the second screw rod adjusting assembly (19) are symmetrically provided below the two first side grooves (201), and a third side groove (203) for placing the tension sensing assembly (8) is provided above one first side groove (201) and on the surface of the corresponding transversely vertical side plate (3).
3. The high-precision numerically controlled grinder as set forth in claim 2, wherein the inner side of the vertical side plate (3) laterally corresponds to the guide grooves of the first side groove (201) and the second side groove (202), and wherein the ends of the adjusting wheel (7) and the sliding tightening wheel (18) far from the vertical portion of the L-shaped side plate (2) are both supported in the guide grooves.
4. The high-precision numerically controlled grinder as set forth in claim 2, wherein the tension sensing assembly (8) comprises a sliding block fitted in the third side groove (203), a sliding rod (82) penetrating through the sliding block in a sliding manner, a tension wheel (81) rotatably connected between the two sliding blocks, and a tension spring (84) sleeved outside the sliding rod (82), wherein one end of the sliding rod (82) far away from the sliding block is connected with a pressure sensing block (83) fixed on the inner wall of the third side groove (203), one end of the tension spring (84) abuts against the surface of the pressure sensing block (83), and a pressure sensor electrically connected with the control panel (4) is arranged in the pressure sensing block (83).
5. The high-precision numerically controlled grinder as set forth in claim 1, wherein a horizontal bottom plate (14) is further fixed below the lathe bed (1), a screw (15) is rotatably connected between the middle of the bottom plate (14) and the top of the lathe bed (1), the screw (15) is in threaded fit with the lifting assembly (13), and a hand-operated assembly (16) extending to the side of the lathe bed (1) is connected to the bottom end of the screw (15).
6. The high-precision numerically controlled grinder as set forth in claim 5, wherein the lifting assembly (13) comprises a U-shaped frame (131) slidably connected to two sides of the top surface of the lathe bed (1) and first electric push rods (132) fixed to two ends of the U-shaped frame (131), screw holes adapted to the screws (15) are formed in the middle of the U-shaped frame (131), and the first electric push rods (132) are electrically connected with the control panel (4).
7. The high-precision numerically controlled grinder as set forth in claim 6, wherein the drive telescoping assembly (12) comprises a side support plate (121) fixed on top of the first electric push rod (132) and a second electric push rod (122) mounted on a side of the side support plate (121) facing the loading plate (10), and the fixed end of the second electric push rod (122) is vertically embedded on top of the side support plate (121).
8. The high-precision numerically controlled grinder as set forth in claim 7, wherein the rotary tightening assembly (11) comprises a second motor (111) fixed at the end of one of the second electric push rods (122) and a fixed column fixed at the end of the other second electric push rod (122), the output shaft of the second motor (111) and the end of the fixed column are both connected with a turntable (112), a push rod (116) is vertically fixed at the center of one side of the turntable (112), a sleeve (113) inserted into the pipe fitting (20) is sleeved at the outer side of the push rod (116), a buffer spring (114) is sleeved on the push rod (116) between the sleeve (113) and the turntable (112), a plurality of wedge blocks (117) are arranged in the sleeve (113), and a tightening block (115) connected with the wedge blocks (117) is sleeved at the outer side of the sleeve (113).
9. The high-precision numerically controlled grinder as set forth in claim 8, wherein the end of the ejector rod (116) located in the sleeve (113) is tapered and corresponds to the oblique sides of the wedge blocks (117), a buffer spring (114) is also disposed between the wedge blocks (117) and the inner wall of the sleeve (113), the tightening block (115) is arc-shaped, a through groove adapted to the tightening block (115) is formed in the surface of the sleeve (113), and a connecting rod (118) penetrating through the through groove is connected between the tightening block (115) and the wedge blocks (117).
10. A working method of a high-precision numerically controlled grinder, using the high-precision numerically controlled grinder as set forth in any one of claims 1 to 9, comprising the steps of:
s1, placing a pipe fitting (20) in an arc-shaped groove of a material containing plate (10), and determining the radius of the pipe fitting (20) to be polished;
s2, adjusting the height of the lifting assembly (13) to enable the rotary jacking assembly (11) fixed at the top of the lifting assembly (13) to coaxially correspond to the inner cavity of the pipe fitting (20);
s3, starting a driving telescopic assembly (12), and tightly pushing and fixing two ends of the pipe fitting (20) by two rotary pushing assemblies (11);
s4, starting the lifting assembly (13), driving the clamped pipe fitting (20) to move upwards by the lifting assembly (13), enabling the top surface of the pipe fitting (20) to contact with the abrasive belt (9), and continuously pushing the abrasive belt (9) upwards until the axis of the pipe fitting (20) corresponds to the axis of the sliding pushing wheel (18), wherein at the moment, the optical sensor transmits a signal, and the control panel (4) controls the lifting assembly (13) to stop;
s5, when the tension sensing assembly (8) senses that the tension strength of the abrasive belt (9) changes, the first screw rod adjusting assembly (17) is started to enable the two adjusting wheels (7) to move a distance X in opposite directions, then the second screw rod adjusting assembly (19) is started to enable the two sliding jacking wheels (18) to move a distance Y, and the abrasive belt (9) is abutted between the sliding jacking wheels (18) and the pipe fitting (20);
s6, starting the first motor (5) and the second motor (111), wherein the first motor (5) drives the abrasive belt (9) to rotate, and the second motor (111) drives the pipe fitting (20) to rotate, so that the surface of the pipe fitting (20) is rapidly polished.
CN202310924596.3A 2023-07-26 2023-07-26 High-precision numerical control grinding machine and working method thereof Pending CN116852221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310924596.3A CN116852221A (en) 2023-07-26 2023-07-26 High-precision numerical control grinding machine and working method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310924596.3A CN116852221A (en) 2023-07-26 2023-07-26 High-precision numerical control grinding machine and working method thereof

Publications (1)

Publication Number Publication Date
CN116852221A true CN116852221A (en) 2023-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310924596.3A Pending CN116852221A (en) 2023-07-26 2023-07-26 High-precision numerical control grinding machine and working method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117206353A (en) * 2023-11-07 2023-12-12 江苏鑫瑞崚新材料科技有限公司 Chain type drawing machine
CN117226188A (en) * 2023-11-10 2023-12-15 泰州凡羽精密齿轮制造有限公司 Tooth gap processing grinder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117206353A (en) * 2023-11-07 2023-12-12 江苏鑫瑞崚新材料科技有限公司 Chain type drawing machine
CN117206353B (en) * 2023-11-07 2024-01-26 江苏鑫瑞崚新材料科技有限公司 Chain type drawing machine
CN117226188A (en) * 2023-11-10 2023-12-15 泰州凡羽精密齿轮制造有限公司 Tooth gap processing grinder
CN117226188B (en) * 2023-11-10 2024-02-23 泰州凡羽精密齿轮制造有限公司 Tooth gap processing grinder

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