CN117655854A - Grinding machine for producing guide rail screw rod and control method thereof - Google Patents
Grinding machine for producing guide rail screw rod and control method thereof Download PDFInfo
- Publication number
- CN117655854A CN117655854A CN202410136502.0A CN202410136502A CN117655854A CN 117655854 A CN117655854 A CN 117655854A CN 202410136502 A CN202410136502 A CN 202410136502A CN 117655854 A CN117655854 A CN 117655854A
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- Prior art keywords
- polishing
- fixedly connected
- screw rod
- grinding machine
- screw
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- 238000000227 grinding Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000005498 polishing Methods 0.000 claims abstract description 156
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 238000009434 installation Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000037303 wrinkles Effects 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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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
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/02—Bench grinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—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 taking regard of the load
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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
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to the technical field of polishing devices, in particular to a grinding machine for producing a guide rail screw rod and a control method thereof, the grinding machine comprises a machine tool, clamping mechanisms for installing the screw rod and rotating the screw rod are symmetrically arranged on the top surface of the machine tool, driving blocks are symmetrically and slidingly connected on two sides of the screw rod on the top surface of the machine tool, a polishing assembly is arranged on the top of the driving blocks, and the polishing assembly comprises a polishing disc and an air bag; according to the invention, the grinding disc, the air bag, the grinding sleeve and the mounting roller are arranged, the air bag is firstly expanded, the air bag drives the grinding sleeve to extend, the grinding sleeve is fully contacted with the inner bottom surface of the screw thread, then the grinding sleeve is close to the inner wall of the screw thread through the expansion mechanism, the grinding sleeve is tightly attached to the screw thread of the screw rod, the grinding dead angle is reduced, and the grinding precision is improved.
Description
Technical Field
The invention relates to the technical field of polishing devices, in particular to a grinding machine for producing a guide rail screw rod and a control method thereof.
Background
The ball screw is a transmission element most commonly used on tool machines and precision machines, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and simultaneously has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipment and precision instruments due to their small frictional resistance.
In the production process of the screw rod, the surface of the screw rod and the inner wall of the screw rod thread are required to be polished by a grinder through a hairbrush of the grinder, and burrs on the surface of the screw rod are removed.
In the prior art, as the screw thread of the screw rod has a certain depth, and the shape of the screw rod screw thread is mainly trapezoidal, the brush is difficult to be fully attached to the inner wall of the screw rod screw thread in the process of polishing the screw rod surface, polishing dead angles are easy to generate, and burrs on the screw rod surface are not completely removed, so that the screw rod precision is reduced.
Therefore, the invention provides a grinder for producing a guide rail screw rod and a control method thereof, so as to solve the problems in the background technology.
Disclosure of Invention
The invention provides a grinding machine for producing a guide rail screw rod and a control method thereof, and aims to solve the problems that in the prior art, as screw threads of the screw rod have a certain depth and the shape of the screw rod threads is mainly trapezoidal, in the process of polishing the surface of the screw rod by a hairbrush, the hairbrush is difficult to be fully attached to the inner wall of the screw rod threads, polishing dead angles are easy to generate, and burrs on the surface of the screw rod are not completely removed, so that the screw rod precision is reduced.
In order to achieve the above object, the present invention adopts the following technical scheme: the grinding machine for producing the guide rail screw rod comprises a machine tool, wherein clamping mechanisms for installing the screw rod and enabling the screw rod to rotate are symmetrically arranged on the top surface of the machine tool, driving blocks are symmetrically and slidably connected on two sides of the screw rod on the top surface of the machine tool, a polishing assembly is arranged on the top of each driving block, and each polishing assembly comprises a polishing disc and an air bag;
the air bag is fixedly connected to the outer side wall of the polishing disc, and an inflation assembly for injecting air into the air bag is arranged at the top of the driving block;
the top end of the driving block is provided with a first adjusting mechanism for adjusting the distance between the polishing disc and the screw rod, the driving block is connected with a mounting plate, and the bottom surface of the mounting plate is provided with a second adjusting mechanism for adjusting the angle of the polishing disc;
the polishing device comprises a polishing disc, a polishing sleeve, a polishing disc, a polishing device and a polishing device, wherein a through groove is formed in the surface of the polishing disc, first sliding blocks are symmetrically and slidably connected in the through groove, a pressure sensor is fixedly connected to the side wall of each first sliding block, a first spring is connected between the pressure sensor and the side wall of the through groove, an installation roller is jointly connected between the two first sliding blocks in a rotating mode, and the surface of each installation roller and the surface of each air bag are jointly connected with the polishing sleeve;
the side wall of the driving block is fixedly connected with a controller;
the side wall of the polishing disc is provided with an expansion mechanism for expanding the polishing sleeve and enabling the polishing sleeve to be attached to the inner wall of the screw thread of the screw rod.
The machine tool is symmetrically and fixedly connected with two guide rails, and the driving block is slidingly connected in the guide rails;
the first adjusting mechanism comprises a first air cylinder, the first air cylinder is fixedly connected to the top of the driving block, the end part of a piston rod of the first air cylinder is fixedly connected with a mounting plate, and the mounting plate is slidably connected to the top of the driving block;
the second adjusting mechanism comprises a self-locking motor, the self-locking motor is fixedly connected to the bottom of the mounting plate, an output shaft of the self-locking motor penetrates through the top end of the mounting plate and is fixedly connected to the connecting frame, the connecting frame is rotationally connected to the top of the mounting plate, a connecting block is connected to the connecting frame in a sliding mode, a second spring is fixedly connected between the connecting block and the connecting frame, and the polishing disc is fixedly connected with the connecting block.
Preferably, the expansion mechanism comprises:
the cavity is formed in the polishing disc;
the two L-shaped pushing blocks are connected in the cavity in a sliding manner, the top ends of the two L-shaped pushing blocks penetrate through the outer side wall of the polishing disc, and an elastic connecting piece is connected between each L-shaped pushing block and the polishing disc;
the elastic rubber pad is fixedly connected to the top end of the L-shaped pushing block;
the second cylinder is fixedly connected in the cavity;
the pushing plate is fixedly connected with the end part of the piston rod of the second cylinder, and a pushing inclined plane is formed on the side wall close to the L-shaped pushing block;
the end part of the L-shaped pushing block is provided with a traction inclined plane matched with the pushing inclined plane;
it should be noted that, the elastic connecting piece includes two third springs and slide bar, the tip of slide bar with the inner wall fixed connection of cavity, L shape impeller head sliding connection is in the slide bar surface, the third spring cup joints the slide bar surface, the both ends of third spring are fixed connection respectively L shape impeller head with on the cavity inner wall.
In a second aspect, to solve the above-mentioned problems, a control method of a grinding machine for producing a guide screw is provided, the control method of the grinding machine comprising the steps of:
acquiring request information, wherein the request information is generated after the acquired pressure information is enhanced to a preset value by a pressure sensor;
generating first control information and second control information according to the request information;
the first control information is sent to the inflation assembly to control the inflation assembly to be closed, and gas is stopped from being infused into the air bag;
sending second control information to the expansion mechanism to start the expansion mechanism, so that the polishing sleeve is attached to the threaded inner wall of the screw rod;
after the controller obtains the request information, first control information and second control information are generated, the controller sends the first control information to the inflation assembly to control the inflation assembly to be closed, gas is stopped from being filled into the air bag, the controller sends the second control information to the expansion mechanism to start the expansion mechanism, and the polishing sleeve is attached to the inner wall of the screw thread of the screw rod.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the grinding disc, the air bag, the grinding sleeve and the mounting roller are arranged, the air bag is firstly expanded, the air bag drives the grinding sleeve to extend, the grinding sleeve is fully contacted with the inner bottom surface of the screw thread, then the grinding sleeve is close to the inner wall of the screw thread through the expansion mechanism, the grinding sleeve is tightly attached to the screw thread of the screw rod, the grinding dead angle is reduced, and the grinding precision is improved.
2. According to the invention, the elastic rubber pad, the L-shaped pushing block, the pushing plate and the second air cylinder are arranged, so that the polishing sleeve is further expanded, the polishing sleeve is tightly attached to the screw thread of the screw rod, in the process that the elastic rubber pad pushes the polishing sleeve, the elastic rubber pad can be deformed by extrusion due to the inner wall of the screw thread, and after the elastic rubber pad is deformed, the contact part of the polishing sleeve and the inner wall of the screw thread can be deformed, so that the polishing sleeve is favorably matched with the screw thread groove, the polishing dead angle is reduced, and the polishing precision is favorably improved.
3. According to the invention, through the arrangement, the elastic telescopic rod, the L-shaped pushing frame, the rotating rod and the rotating plate, in the rotating process of the rotating plate, the first connecting pin drives the elastic telescopic rod to slide along the inner wall of the cavity and approach the first sliding block through the driving action of the straight groove until the piston end of the elastic telescopic rod extrudes and pushes the first sliding block, so that the first sliding block drives the mounting roller to be far away from the air bag, the mounting roller pulls the polishing sleeve, the polishing sleeve is straightened, wrinkles on the polishing sleeve are favorably eliminated, the polishing sleeve is fully contacted with the inner wall of the thread, polishing dead angles are reduced, and polishing precision is improved.
Drawings
FIG. 1 is a flow chart of a control method of the present invention.
Fig. 2 is a schematic diagram of the whole structure of the grinding machine for producing the guide rail screw rod.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is a connection diagram of the sanding disc, the driving block, the first cylinder and the mounting plate in the present invention.
Fig. 5 is a connection diagram of the sanding disc, the connection block and the connection frame in the present invention.
Fig. 6 is an enlarged view at B in fig. 5.
FIG. 7 is a connection diagram of the sanding disc, air bag and sanding sleeve of the present invention.
Fig. 8 is a connection diagram of the sanding disc, the first slider and the mounting roller in the present invention.
Fig. 9 is a cross-sectional view of a sanding disc in accordance with the present invention.
Fig. 10 is an enlarged view at C in fig. 9.
FIG. 11 is a schematic view of the retractor of the invention.
Fig. 12 is an enlarged view of D in fig. 11.
Fig. 13 is a connection diagram of the rotating plate, the second connection pin and the elastic telescopic rod in the present invention.
Fig. 14 is a view showing the connection of the arc-shaped clamping plate and the bracket in the present invention.
FIG. 15 is a flow chart of a method of controlling a pressure sensor according to the present invention.
FIG. 16 is a flow chart of a method of activating an expansion mechanism in accordance with the present invention.
In the figure: 1. a machine tool; 2. a driving block; 3. polishing the grinding disc; 301. a through groove; 302. a cavity; 303. an arc chute; 4. an air bag; 5. a first slider; 6. a pressure sensor; 7. a first spring; 8. a mounting roller; 9. polishing the sleeve; 901. a notch; 10. a controller; 11. a guide rail; 12. a first cylinder; 13. a mounting plate; 14. a self-locking motor; 15. a connecting frame; 16. a connecting block; 17. a second spring; 18. an L-shaped pushing block; 19. an elastic rubber pad; 20. an elastic rubber sheet; 21. a second cylinder; 22. a pushing plate; 23. a third spring; 24. a slide bar; 25. an elastic telescopic rod; 26. an L-shaped pushing frame; 27. a rotating lever; 28. a rotating plate; 2801. a straight groove; 2802. a driving groove; 29. a first connecting pin; 30. a torsion spring; 31. a drag hook; 32. a connection frame; 3201. a fourth spring; 33. a second slider; 34. a second connecting pin; 35. a gear; 36. a rack; 37. an air pump; 38. a conduit; 39. a bracket; 40. a rotating disc; 41. a driving motor; 42. an arc-shaped clamping plate; 43. and a fifth spring.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The grinding machine for producing the guide rail screw rod as shown in fig. 2 to 14 comprises a machine tool 1, wherein clamping mechanisms for installing the screw rod and rotating the screw rod are symmetrically arranged on the top surface of the machine tool 1, driving blocks 2 are symmetrically and slidingly connected to the top surface of the machine tool 1 on two sides of the screw rod, and a grinding assembly is arranged on the top of the driving blocks 2 and comprises a grinding disc 3 and an air bag 4;
the air bag 4 is fixedly connected to the outer side wall of the polishing disc 3, and an inflation assembly for injecting air into the air bag 4 is arranged at the top of the driving block 2;
the top end of the driving block 2 is provided with a first adjusting mechanism for adjusting the distance between the grinding disc 3 and the screw rod, the driving block 2 is connected with a mounting plate 13, and the bottom surface of the mounting plate 13 is provided with a second adjusting mechanism for adjusting the angle of the grinding disc 3;
the surface of the polishing disc 3 is provided with a through groove 301, first sliding blocks 5 are symmetrically and slidingly connected in the through groove 301, the side wall of each first sliding block 5 is fixedly connected with a pressure sensor 6, a first spring 7 is connected between each pressure sensor 6 and the side wall of the through groove 301, an installation roller 8 is jointly connected between the two first sliding blocks 5 in a rotating mode, and the installation rollers 8 and the surfaces of the air bags 4 are jointly connected with a polishing sleeve 9;
the side wall of the driving block 2 is fixedly connected with a controller 10;
the side wall of the polishing disc 3 is provided with an expansion mechanism for expanding the polishing sleeve 9 and enabling the polishing sleeve 9 to be attached to the threaded inner wall of the screw rod.
It should be noted that, two guide rails 11 are symmetrically and fixedly connected to the top surface of the machine tool 1, and the driving block 2 is slidably connected in the guide rails 11;
it should be noted that the first adjusting mechanism includes a first cylinder 12, the first cylinder 12 is fixedly connected to the top of the driving block 2, the end of the piston rod of the first cylinder 12 is fixedly connected with a mounting plate 13, and the mounting plate 13 is slidably connected to the top of the driving block 2;
the second adjusting mechanism comprises a self-locking motor 14, the self-locking motor 14 is fixedly connected to the bottom of the mounting plate 13, an output shaft of the self-locking motor 14 penetrates through the top end of the mounting plate 13 and is fixedly connected to a connecting frame 15, the connecting frame 15 is rotationally connected to the top of the mounting plate 13, a connecting block 16 is slidably connected in the connecting frame 15, a second spring 17 is fixedly connected between the connecting block 16 and the connecting frame 15 together, and the polishing disc 3 is fixedly connected with the connecting block 16;
in the prior art, when the screw rod is in work, as the screw thread of the screw rod has a certain depth, the shape of the screw rod is mainly trapezoidal, in the process of polishing the screw rod surface by the hairbrush, the hairbrush is difficult to be fully attached to the inner wall of the screw rod thread, polishing dead angles are easy to generate, burrs on the screw rod surface are not completely removed, and accordingly screw rod precision is reduced;
then, the inflation assembly is started to flush gas into the air bag 4, the air bag 4 is inflated, the whole polishing disc 3 slides along the connecting frame 15 under the extrusion action of the inner wall of the thread groove of the screw rod in the inflation process of the air bag 4, the second spring 17 is continuously compressed, and the air bag 4 pushes the polishing sleeve 9 in the inflation process, so that the polishing sleeve 9 stretches, and the polishing sleeve 9 is in full contact with the inner bottom surface of the thread groove of the screw rod;
in the process of stretching the polishing sleeve 9, the polishing sleeve 9 drives the mounting roller 8 and the first sliding block 5 to slide along the inner wall of the through groove 301, so that the first spring 7 is compressed, pressure information acquired by the pressure sensor 6 is increased, after the air bag 4 is fully expanded, the pressure sensor 6 generates request information, the request information is generated into the controller 10, the controller 10 generates first control information and second control information after acquiring the request information, the first control information closes the inflation assembly, the inflation assembly stops inflating the air bag 4, the second control information starts the expansion mechanism, the polishing sleeve 9 is close to the side wall of the screw thread through the expansion mechanism and finally is attached to the side wall of the screw thread, gaps between the polishing sleeve 9 and the inner side wall of the screw thread are eliminated, so that the polishing sleeve 9 is tightly attached to the screw thread of the screw rod, polishing dead angles are reduced, and polishing precision is improved;
after the polishing sleeve 9 is attached to the screw thread of the screw rod, starting the clamping mechanism to enable the screw rod to rotate, wherein in the process of rotating the screw rod, the polishing disc 3 drives the driving block 2 to slide along the guide rail 11 under the driving of the screw rod thread track, so that polishing in the screw rod thread is completed;
this grinding machine that lead screw production was used, through setting up polishing disc 3, gasbag 4, cover 9 and the installation roller 8 of polishing, let gasbag 4 expand earlier, let gasbag 4 drive cover 9 of polishing stretch out, let cover 9 of polishing fully contact with the interior bottom surface of screw thread, then rethread expansion mechanism, let cover 9 of polishing be close to the screw thread inner wall, let cover 9 of polishing closely paste with the screw thread of lead screw on, reduce the dead angle of polishing, be favorable to improving the precision of polishing.
As one embodiment of the present invention, the expansion mechanism includes:
a cavity 302 provided in the polishing plate 3;
the two L-shaped pushing blocks 18 are slidably connected in the cavity 302, the top ends of the two L-shaped pushing blocks penetrate through the outer side wall of the polishing disc 3, and an elastic connecting piece is connected between each L-shaped pushing block 18 and the polishing disc 3;
the elastic rubber pad 19 is fixedly connected to the top end of the L-shaped pushing block 18;
the second cylinder 21 is fixedly connected in the cavity 302;
a pushing plate 22 fixedly connected with the end of the piston rod of the second cylinder 21 and provided with a pushing inclined plane on the side wall close to the L-shaped pushing block 18;
the end part of the L-shaped pushing block 18 is provided with a traction inclined plane which is matched with the pushing inclined plane;
it should be noted that, the elastic connecting piece includes a third spring 23 and a sliding rod 24, the end of the sliding rod 24 is fixedly connected with the inner wall of the cavity 302, the L-shaped pushing block 18 is slidably connected on the surface of the sliding rod 24, the third spring 23 is sleeved on the surface of the sliding rod 24, and two ends of the third spring 23 are respectively fixedly connected on the L-shaped pushing block 18 and the inner wall of the cavity 302;
during operation, through setting up elastic rubber pad 19, L shape impeller 18, push plate 22 and second cylinder 21, after gasbag 4 is full of gas, start second cylinder 21 through controller 10, the piston rod of second cylinder 21 stretches out, make push plate 22 be close to L shape impeller 18 direction, push inclined plane on the push plate 22 lateral wall carries out the contact extrusion with the traction inclined plane of L shape impeller 18, make L shape impeller 18 slide along slide bar 24 surface, in the gliding in-process of L shape impeller 18, can drive elastic rubber pad 19, make elastic rubber pad 19 be close to the cover 9 inner wall of polishing, and promote cover 9 of polishing and make further expansion, let cover 9 of polishing closely paste with the screw thread of lead screw, and in the in-process that elastic rubber pad 19 promoted cover 9 of polishing, elastic rubber pad 19 can produce extrusion deformation because of the screw inner wall, can let cover 9 of polishing and screw thread inside wall contact part take place to warp, thereby be favorable to letting cover 9 of polishing adapt to the screw groove, reduce the dead angle, be favorable to improving the precision of polishing.
As one embodiment of the present invention, a wrinkle removing mechanism for pushing the first slider 5 to move and tightening the surface of the polishing pad 9 is disposed in the through groove 301, and the wrinkle removing mechanism includes:
the piston end of the elastic telescopic rod 25 penetrates through the cavity 302 and extends into the through groove 301, and the fixed end of the elastic telescopic rod 25 is in sliding connection with the cavity 302;
an L-shaped pushing frame 26 fixedly connected to the side wall of the pushing plate 22;
a rotation lever 27 rotatably connected in the cavity 302;
the rotating plate 28 is fixedly connected to the surface of the rotating rod 27, and one end of the rotating plate extends to the position of the L-shaped pushing frame 26;
a straight groove 2801 provided on a side wall of the other end of the rotation plate 28;
a first connecting pin 29, one end of which is fixedly connected to the elastic telescopic rod 25, and the other end of which is slidably connected to the straight slot 2801;
the torsion spring 30 is sleeved on the outer side of the rotating rod 27, and two ends of the torsion spring are fixedly connected to the rotating plate 28 and the inner wall of the cavity 302 respectively;
during operation, when the gasbag 4 is not inflated, the cover 9 of polishing is soft state, the cover 9 of polishing produces the fold phenomenon easily this moment, after the gasbag 4 fills gas, the part that the cover 9 of polishing produced the fold is difficult to fully contact with the inner wall of cavity 302, produce the dead angle of polishing easily, thereby reduce the precision of polishing, this technical scheme can solve above-mentioned problem, specific operation is as follows, through setting up elastic telescoping rod 25, L shape pushing frame 26, dwang 27 and rotor plate 28, in the in-process of pushing the L shape impeller 18 of impeller plate 22, L shape pushing frame 26 is close to rotor plate 28 direction, and promote rotor plate 28 and rotate, torsional spring 30 warp, in the in-process of rotor plate 28 rotation, through the driving action of straight flute 2801, make first connecting pin 29 drive elastic telescoping rod 25 slide along the inner wall of cavity 302, and close first slider 5, until the piston end extrusion of elastic telescoping rod 25 promotes first slider 5, let first slider 5 drive installation roller 8 keep away from gasbag 4, make installation roller 8 pulling the cover of polishing, let cover 9 draw straight, be favorable to eliminating the cover 9 of polishing, the fold on the rotor plate 28 rotates, the inner wall of roll 9 of polishing is fully contacts with the dead angle, the precision is reduced.
As an embodiment of the present invention, four notches 901 are symmetrically formed on the surface of the polishing sleeve 9, and the wrinkle removing mechanism further comprises:
the four draw hooks 31 are symmetrically and slidably connected to the surface of the polishing disc 3, and the end parts of the draw hooks 31 are hung at the notch 901;
the connecting frame 32 is fixedly connected to the bottom end of the draw hook 31;
the second sliding block 33 is slidably connected in the connecting frame 32, and a fourth spring 3201 is fixedly connected between the second sliding block 33 and the connecting frame 32;
the arc chute 303 is arranged on the surface of the polishing disc 3;
a driving slot 2802 provided on a side wall of the rotation plate 28;
the two ends of the second connecting pin 34 are respectively and rotatably connected with the two second sliding blocks 33 at corresponding positions, the second connecting pin 34 is slidably connected in the arc-shaped sliding groove 303, and the second connecting pin 34 is slidably connected in the driving groove 2802; during operation, through setting up drag hook 31, at the pivoted in-process of rotating board 28, through the drive of drive slot 2802, make second connecting pin 34 slide along arc spout 303, make second slider 33 slide along connecting frame 32, under the connection of fourth spring 3201, second slider 33 drives drag hook 31 and slides along the orbit of arc spout 303, and the pulling cover 9 of polishing, thereby further will polish cover 9 and straighten, be favorable to eliminating the fold on the cover 9 of polishing, let cover 9 of polishing fully contact with the screw inner wall, reduce the dead angle of polishing, improve the precision of polishing.
As one embodiment of the present invention, the driving block 2 is provided with a positioning mechanism for limiting the position of the polishing disc 3, comprising:
the connecting frame 15 is rotatably connected to the top of the mounting plate 13;
a gear 35 fixedly connected to the connection block 16;
a rack 36 slidably connected to the connection frame 15;
a fifth spring 43 is fixedly connected between the rack 36 and the connecting frame 15, a first jack is symmetrically arranged on the surface of the rack 36, and a limit hole matched with the first jack is arranged on the surface of the connecting frame 15; during operation, through setting up gear 35 and rack 36, after gasbag 4 fills gas, the staff is manual promotes rack 36 and is close to gear 35 to carry out spacingly with gear 35, then through the bolt, screw in first jack and spacing downthehole with the bolt, spacing with the position of rack 36, accomplish the spacing to gear 35, thereby guarantee at the in-process of polishing, the stability of polishing dish 3.
As one embodiment of the present invention, an inflation assembly includes:
an air pump 37 fixedly connected to the mounting plate 13;
one end of the conduit 38 is connected with the exhaust end of the air pump 37, and the other end of the conduit is fixedly communicated with the air bag 4; in operation, air is injected into the air bag 4 by the air pump 37 to expand the air bag 4.
As one embodiment of the present invention, the clamping mechanism includes:
two brackets 39 symmetrically and fixedly connected to the top surface of the machine tool 1;
two rotary disks 40 rotatably connected in the two brackets 39, respectively;
two driving motors 41 are fixedly connected to the two brackets 39 respectively, the output shafts of the driving motors 41 are fixedly connected with the rotating disk 40,
two groups of arc-shaped clamping plates 42, wherein one group of two arc-shaped clamping plates 42 is arranged on the two rotating discs 40, one arc-shaped clamping plate 42 of the same group is connected to the rotating disc 40 in a sliding manner, the other arc-shaped clamping plate 42 of the same group is fixedly connected to the rotating disc 40, and second jacks are formed in the side wall arrays of the arc-shaped clamping plates 42;
the elastic rubber sheet 20 is fixedly connected in the arc-shaped clamping plate 42; during operation, through setting up arc grip block 42 and elastic rubber piece 20, when installing the lead screw, put the lead screw between two arc grip blocks 42 earlier, then promote two arc grip blocks 42 and be close to each other, utilize elastic rubber piece 20 to carry out the centre gripping with the lead screw both ends, insert the second jack through the bolt after the centre gripping, carry out spacingly with two arc grip blocks 42 on every rotary disk 40, after polishing cover 9 and lead screw thread groove adaptation, start driving motor 41 again, driving motor 41's output shaft rotates, can drive rotary disk 40 and rotate, thereby make the lead screw rotatory, under the drive of screw thread, polish dish 3 drives driving piece 2 along lead screw spiral direction slip on guide rail 11, accomplish the polishing to the lead screw.
In a second aspect, referring to fig. 1, 15 and 16, in order to solve the above problems, there is provided a control method of a grinding machine for producing a guide screw, the control method of the grinding machine comprising the steps of:
acquiring request information, wherein the request information is generated after the acquired pressure information is enhanced to a preset value by the pressure sensor 6;
generating first control information and second control information according to the request information;
sending first control information to the inflation assembly to control the inflation assembly to be closed, and stopping flushing gas into the air bag 4;
sending second control information to the expansion mechanism to start the expansion mechanism, so that the polishing sleeve 9 is attached to the inner wall of the screw thread of the screw rod;
after the controller 10 obtains the request information, the first control information and the second control information are generated, the controller 10 sends the first control information to the inflation assembly to control the inflation assembly to be closed, the inflation of the air bag 4 is stopped, the controller 10 sends the second control information to the expansion mechanism to start the expansion mechanism, and the polishing sleeve 9 is attached to the inner wall of the screw thread of the screw rod.
Specifically, the specific control method of the pressure sensor 6 includes the following steps:
acquiring pressure enhancement information;
generating request information for requesting the controller 10 to start the expansion mechanism and to close the inflation assembly based on the pressure enhancement information;
transmitting the request information to the controller 10;
the pressure sensor 6 acquires pressure enhancement information, and after the pressure enhancement information is acquired, the pressure sensor 6 generates request information and then sends the request information to the controller.
The obtained pressure information is enhanced to a predetermined value by the pressure enhancement information.
In particular, the method for starting the expansion mechanism comprises the following steps,
acquiring second control information;
and starting the expansion mechanism according to the second control information to enable the polishing sleeve 9 to be attached to the inner wall of the screw thread of the screw rod.
The working principle of the invention is as follows: firstly, a screw rod is fixed through a clamping mechanism, then a self-locking motor 14 is started, an output shaft of the self-locking motor 14 rotates, a connecting frame 15 drives a polishing disc 3 to rotate, the polishing disc 3 is inclined and is used for adapting to the inclination angle of screw threads of the screw rod, then a first air cylinder 12 is started, a piston rod of the first air cylinder 12 stretches out, the polishing disc 3 is close to the screw rod, the polishing disc 3 enters the screw threads, at the moment, an air bag 4 is not inflated, the air bag is in a loose state, the polishing disc 3 is beneficial to stretching into a screw rod thread groove, and in the process that the polishing disc 3 is close to the screw rod and is in contact extrusion with the inner wall of the screw rod thread groove, the polishing disc 3 slides along the inner wall of the connecting frame 15, and a second spring 17 is compressed, so that the polishing disc 3 is beneficial to be in contact with the screw rod more tightly;
then, the inflation assembly is started to flush gas into the air bag 4, the air bag 4 is inflated, the whole polishing disc 3 slides along the connecting frame 15 under the extrusion action of the inner wall of the thread groove of the screw rod in the inflation process of the air bag 4, the second spring 17 is continuously compressed, and the air bag 4 pushes the polishing sleeve 9 in the inflation process, so that the polishing sleeve 9 stretches, and the polishing sleeve 9 is in full contact with the inner bottom surface of the thread groove of the screw rod;
in the process of stretching the polishing sleeve 9, the polishing sleeve 9 drives the mounting roller 8 and the first sliding block 5 to slide along the inner wall of the through groove 301, so that the first spring 7 is compressed, pressure information acquired by the pressure sensor 6 is increased, after the air bag 4 is fully expanded, the pressure sensor 6 generates request information, the request information is generated into the controller 10, the controller 10 generates first control information and second control information after acquiring the request information, the first control information closes the inflation assembly, the inflation assembly stops inflating the air bag 4, the second control information starts the expansion mechanism, the polishing sleeve 9 is close to the side wall of the screw thread through the expansion mechanism and finally is attached to the side wall of the screw thread, gaps between the polishing sleeve 9 and the inner side wall of the screw thread are eliminated, so that the polishing sleeve 9 is tightly attached to the screw thread of the screw rod, polishing dead angles are reduced, and polishing precision is improved;
after the screw thread laminating of cover 9 and lead screw polishes, start fixture and let the lead screw rotate, at the rotatory in-process of lead screw, the drive of polishing dish 3 under the screw thread track can drive piece 2 and slide along guide rail 11 to accomplish the polishing to the screw thread in.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (10)
1. The grinding machine for producing the guide rail screw rod comprises a machine tool (1), wherein clamping mechanisms for installing the screw rod and enabling the screw rod to rotate are symmetrically arranged on the top surface of the machine tool (1), driving blocks (2) are symmetrically and slidingly connected to the top surface of the machine tool (1) on two sides of the screw rod, and a grinding assembly is arranged on the top of each driving block (2), and the grinding machine is characterized in that each grinding assembly comprises a grinding disc (3) and an air bag (4);
the air bag (4) is fixedly connected to the outer side wall of the polishing disc (3), and an inflation assembly for injecting air into the air bag (4) is arranged at the top of the driving block (2);
the top end of the driving block (2) is provided with a first adjusting mechanism for adjusting the distance between the polishing disc (3) and the screw rod, the driving block (2) is connected with a mounting plate (13), and the bottom surface of the mounting plate (13) is provided with a second adjusting mechanism for adjusting the angle of the polishing disc (3);
the polishing device is characterized in that a through groove (301) is formed in the surface of the polishing disc (3), first sliding blocks (5) are symmetrically and slidingly connected in the through groove (301), a pressure sensor (6) is fixedly connected to the side wall of each first sliding block (5), a first spring (7) is connected between the pressure sensor (6) and the side wall of the through groove (301), an installation roller (8) is jointly connected between the two first sliding blocks (5) in a rotating mode, and the installation rollers (8) and the surfaces of the air bags (4) are jointly connected with a polishing sleeve (9);
the side wall of the driving block (2) is fixedly connected with a controller (10);
the side wall of the polishing disc (3) is provided with an expansion mechanism for expanding the polishing sleeve (9) at the position of the polishing sleeve (9) to enable the polishing sleeve (9) to be attached to the inner wall of the screw thread of the screw rod.
2. A grinding machine for the production of a rail lead screw as defined in claim 1, wherein: the expansion mechanism comprises:
the cavity (302) is arranged in the polishing disc (3);
the two L-shaped pushing blocks (18) are connected in the cavity (302) in a sliding manner, the top ends of the two L-shaped pushing blocks penetrate through the outer side wall of the polishing disc (3), and an elastic connecting piece is connected between each L-shaped pushing block (18) and the polishing disc (3);
an elastic rubber pad (19) fixedly connected to the top end of the L-shaped pushing block (18);
the second cylinder (21) is fixedly connected in the cavity (302);
the pushing plate (22) is fixedly connected with the end part of the piston rod of the second air cylinder (21), and a pushing inclined plane is formed on the side wall close to the L-shaped pushing block (18);
the end part of the L-shaped pushing block (18) is provided with a traction inclined plane which is matched with the pushing inclined plane.
3. A grinding machine for the production of a rail lead screw as defined in claim 2, wherein: the utility model discloses a polishing device, including a polishing sleeve (9), a through groove (301) is arranged in, is used for promoting first slider (5) removal, makes the tight wrinkle removal mechanism in polishing sleeve (9) surface, wrinkle removal mechanism includes:
the piston end of the elastic telescopic rod (25) penetrates through the cavity (302) and extends into the through groove (301), and the fixed end of the elastic telescopic rod (25) is in sliding connection with the cavity (302);
an L-shaped pushing frame (26) fixedly connected to the side wall of the pushing plate (22);
a rotating rod (27) rotatably connected in the cavity (302);
a rotating plate (28) fixedly connected to the surface of the rotating rod (27), and one end of the rotating plate extends to the position of the L-shaped pushing frame (26);
a straight groove (2801) which is formed on the side wall of the other end of the rotating plate (28);
a first connecting pin (29), one end of which is fixedly connected to the elastic telescopic rod (25) and the other end of which is slidingly connected to the straight slot (2801);
the torsion spring (30) is sleeved on the outer side of the rotating rod (27), and two ends of the torsion spring are fixedly connected to the rotating plate (28) and the inner wall of the cavity (302) respectively.
4. A grinding machine for the production of a rail lead screw as defined in claim 3, wherein: four incisions (901) are symmetrically formed in the surface of the polishing sleeve (9), and the wrinkle removing mechanism further comprises:
the four draw hooks (31) are symmetrically and slidingly connected to the surface of the polishing disc (3), and the end parts of the draw hooks (31) are hung at the notch (901);
the connecting frame (32) is fixedly connected to the bottom end of the draw hook (31);
the second sliding block (33) is connected in the connecting frame (32) in a sliding way, and a fourth spring (3201) is fixedly connected between the second sliding block (33) and the connecting frame (32);
the arc-shaped chute (303) is arranged on the surface of the polishing disc (3);
a drive slot (2802) which is arranged on the side wall of the rotating plate (28);
the two ends of the second connecting pin (34) are respectively connected with the two second sliding blocks (33) at corresponding positions in a rotating mode, the second connecting pin (34) is connected in the arc-shaped sliding groove (303) in a sliding mode, and the second connecting pin (34) is connected in the driving groove (2802) in a sliding mode.
5. A grinding machine for the production of a rail lead screw as defined in claim 1, wherein: the drive block (2) is provided with a positioning mechanism for limiting the position of the polishing disc (3), and the positioning mechanism comprises:
the connecting frame (15) is rotatably connected to the top of the mounting plate (13);
the connecting block (16) is connected to the inner wall of the connecting frame (15) in a sliding manner;
the gear (35) is fixedly connected to the connecting block (16);
a rack (36) slidingly connected to the connecting frame (15);
the rack (36) and the connecting frame (15) are fixedly connected with a fifth spring (43) together, first jacks are symmetrically formed in the surfaces of the rack (36), and limiting holes matched with the first jacks are formed in the surfaces of the connecting frame (15).
6. A grinding machine for the production of a rail lead screw as defined in claim 1, wherein: the inflation assembly includes:
the air pump (37) is fixedly connected to the mounting plate (13);
and one end of the conduit (38) is connected with the exhaust end of the air pump (37), and the other end of the conduit is fixedly communicated with the air bag (4).
7. A grinding machine for the production of a rail lead screw as defined in claim 1, wherein: the clamping mechanism comprises:
the two brackets (39) are symmetrically and fixedly connected to the top surface of the machine tool (1);
two rotating discs (40) respectively rotatably connected in the two brackets (39);
two driving motors (41) which are respectively and fixedly connected to the two brackets (39), the output shafts of the driving motors (41) are fixedly connected with the rotating disk (40),
two groups of arc-shaped clamping plates (42), wherein the two groups of arc-shaped clamping plates (42) are arranged on the two rotating discs (40) respectively, one arc-shaped clamping plate (42) of the same group is connected to the rotating disc (40) in a sliding manner, and the other arc-shaped clamping plate (42) of the same group is fixedly connected to the rotating disc (40);
the elastic rubber sheet (20) is fixedly connected in the arc-shaped clamping plate (42).
8. A control method of a grinding machine for producing a guide rail screw, applicable to the grinding machine for producing a guide rail screw according to any one of claims 1 to 7, characterized in that: the control method of the grinding machine comprises the following steps:
acquiring request information, wherein the request information is generated by a pressure sensor (6) after the acquired pressure information is enhanced to a preset value;
generating first control information and second control information according to the request information;
sending first control information to the inflation assembly to control the inflation assembly to be closed, and stopping flushing gas into the air bag (4);
and sending second control information to the expansion mechanism to start the expansion mechanism, so that the polishing sleeve (9) is attached to the inner wall of the screw thread of the screw rod.
9. The control method of a grinding machine for the production of a guide screw according to claim 8, characterized in that the specific control method of the pressure sensor (6) comprises the following steps:
acquiring pressure enhancement information;
generating request information according to the pressure enhancement information, wherein the request information is used for requesting a controller (10) to start an expansion mechanism and close an inflation assembly;
the request information is sent to the controller (10).
10. The control method of a grinding machine for producing a guide screw according to claim 8, wherein the specific starting method of the expansion mechanism comprises the steps of:
acquiring second control information;
and starting the expansion mechanism according to the second control information, and enabling the polishing sleeve (9) to be attached to the inner wall of the screw thread of the screw rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410136502.0A CN117655854B (en) | 2024-01-31 | 2024-01-31 | Grinding machine for producing guide rail screw rod and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410136502.0A CN117655854B (en) | 2024-01-31 | 2024-01-31 | Grinding machine for producing guide rail screw rod and control method thereof |
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| CN117655854A true CN117655854A (en) | 2024-03-08 |
| CN117655854B CN117655854B (en) | 2024-04-19 |
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| CN113953925A (en) * | 2021-10-22 | 2022-01-21 | 黄文杰 | Elliptical ceramic tube shell chamfering device and method capable of moving angle of grinding wheel randomly |
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| US5121572A (en) * | 1990-11-06 | 1992-06-16 | Timesavers, Inc. | Opposed disc deburring system |
| US20100311309A1 (en) * | 2009-06-04 | 2010-12-09 | Hiroyuki Shinozaki | Dressing apparatus, dressing method, and polishing apparatus |
| CN106625059A (en) * | 2016-11-29 | 2017-05-10 | 湖州兴贝克合金科技有限公司 | Titanium alloy pipe grinding device |
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| CN117655854B (en) | 2024-04-19 |
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