CN107398598B - Sheeting adjustment assembly, clamping mechanism of grinding machine and grinding machine - Google Patents
Sheeting adjustment assembly, clamping mechanism of grinding machine and grinding machine Download PDFInfo
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- CN107398598B CN107398598B CN201710823927.9A CN201710823927A CN107398598B CN 107398598 B CN107398598 B CN 107398598B CN 201710823927 A CN201710823927 A CN 201710823927A CN 107398598 B CN107398598 B CN 107398598B
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- cam
- pressing piece
- cylinder body
- grinding machine
- spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
- B23D63/08—Sharpening the cutting edges of saw teeth
- B23D63/16—Sharpening the cutting edges of saw teeth of chain saws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The application discloses a pressing piece adjusting assembly, a clamping mechanism and a grinding machine, wherein the pressing piece adjusting assembly comprises a fixed seat and an elastic piece, the fixed seat comprises a protruding part, a first pressing piece is slidably arranged on the protruding part, and the elastic piece is used for enabling the first pressing piece to have a movement trend towards the protruding part; the tablet adjustment assembly further comprises: the cam is rotatably arranged on the fixed seat, the cam is abutted against the first pressing piece, and the distance between the first pressing piece and the protruding part is adjusted through rotation of the cam; the positioning structure is arranged between the cam and the fixed seat and used for positioning the cam after adjustment. According to the application, through the rotation of the cam, pressure can be applied to the first pressing piece, so that the acting force of the elastic piece is overcome, the first pressing piece can slide relative to the protruding part, and the cam can be positioned through the positioning structure, namely, the first pressing piece can be positioned. The pressing piece adjusting assembly is convenient and reliable, and the position of the first pressing piece can be changed, so that the pressing piece adjusting assembly can be suitable for workpieces to be ground with various thicknesses.
Description
Technical Field
The application relates to the field of grinding tools, in particular to a tabletting adjusting assembly, a clamping mechanism of a grinding machine and the grinding machine.
Background
In working, the chain cutting edge of the chain saw becomes blunt due to abrasion, the cutting speed and the cutting quality are affected, the round file is used for filing, the filing angle, the cutting edge precision, the consistency of each cutter head and the like are difficult to ensure, and the working efficiency is very low, so that the chain saw needs to be put on a chain grinder for grinding, and the chain saw can be used continuously.
The chain grinder generally includes a base, a clamping mechanism (for clamping a chain to be ground) provided on the base, and a grinding mechanism rotatably mounted on the base, on which grinding blade is mounted, and when the grinding mechanism is rotated downward (integrally rotated with respect to the base), the grinding blade is engaged with a chain saw on the clamping mechanism.
Patent document with publication number of CN204221120U discloses a quick clamping device of chain grinder, which comprises a frame, wherein a casing and a chain fixing disc are arranged on the frame, a pull rod is arranged between the frame and the casing through a pin shaft, a torsion spring is sleeved on the pin shaft, a front clamping piece and a rear clamping piece are arranged on the chain fixing disc, and a stay wire is connected between the front clamping piece and the pull rod.
In the clamping device disclosed in the above patent document, the position of one clamping piece (rear clamping piece) cannot be adjusted, so that in order to adapt to chains with different thicknesses, the stroke of the pull wire can be adjusted only through an adjusting nut, and the adjusting mode has poor precision and is inconvenient to adjust.
Disclosure of Invention
The present application addresses the above-described problems by providing a tablet adjustment assembly, a clamping mechanism, and a grinding machine capable of adjusting the tablet position.
The technical scheme adopted by the application is as follows:
a tablet adjustment assembly for adjusting the position of a first tablet, the tablet adjustment assembly comprising a fixed seat and an elastic member, the fixed seat comprising a boss on which the first tablet is slidably mounted, the elastic member being for causing the first tablet to have a tendency to move closer to the boss; the tablet adjustment assembly further comprises:
the cam is rotatably arranged on the fixed seat and is abutted against the first pressing piece, and the distance between the first pressing piece and the protruding part is adjusted through rotation of the cam;
the positioning structure is arranged between the cam and the fixed seat and used for positioning the cam after adjustment.
Through the rotation of cam, can apply pressure to first preforming to overcome the effort of elastic component to first preforming, make first preforming can slide relative bellying, can make the cam fix a position through location structure, can make first preforming fix a position promptly. The pressing piece adjusting component is convenient and reliable, and the position of the first pressing piece can be changed, so that the pressing piece adjusting component can be suitable for workpieces (such as chains) to be ground with different thicknesses.
Optionally, at least two protruding parts are provided, a second guide hole is formed in each protruding part, a second guide column is slidably arranged on each second guide hole, each second guide column is arranged in each corresponding second guide hole in a penetrating mode, two ends of each second guide column are located on the outer sides of the corresponding second guide holes, one end of each second guide column is provided with a first anti-falling part, and the other end of each second guide column is connected with the corresponding first pressing piece; the elastic piece is a second spring sleeved on the second guide post, one end of the second spring is matched with the protruding part, and the other end of the second spring is matched with the first anti-falling part.
Through the effect of second spring, can make first preforming and cam support all the time, when the cam rotates, can change the relative position of first preforming.
Optionally, the cam is provided with a rotating hole eccentrically arranged, the fixing seat is provided with a mounting column, and the cam is sleeved on the mounting column through the rotating hole.
Optionally, the mounting post is provided with a threaded hole, the rotating hole is a countersunk hole, the cam is limited on the mounting post through a screw, one end of the screw passes through the countersunk hole and then is matched with the threaded hole of the mounting post, and the other end of the screw is in clearance fit with the step of the countersunk hole.
The application relates to a step clearance fit with a countersunk hole, which has two conditions, namely, the outer diameter of a screw head is larger than the small diameter section of the countersunk hole, and the other is that a gasket is arranged on the step, and the screw head is abutted or clearance fit with the gasket.
Optionally, the positioning structure includes:
the spring mounting groove is arranged on the cam;
a third spring installed in the spring installation groove;
the positioning holes are arranged on the fixed seat and are distributed in an arc shape;
the steel ball is arranged in the spring mounting groove, one side of the steel ball is abutted against the outer end of the third spring, and the other side of the steel ball is matched with the positioning hole.
The cam can drive the steel balls to move between different positioning holes when rotating, and the third spring can fix the steel balls on the corresponding positioning holes, so that the positioning function is realized.
Optionally, a plurality of first scales have on the fixing base, each first scale and locating hole one-to-one, have first indication structure on the cam, first indication structure is used for cooperating with first scale, confirms the regulation gear of cam.
Through the cooperation of first scale and first indication structure, can realize the rapid adjustment of multiple gear. In actual use, at least two first scales are different in representation, and preferably, the representation contents of the first scales are different. The first indication structure is a mark, a protrusion or a recess.
Optionally, the tablet adjusting assembly further comprises a shifting handle relatively fixed with the cam, and the shifting handle is used for driving the cam to rotate.
The application also discloses a clamping mechanism of the grinding machine, which is arranged on a base of the grinding machine and comprises the tabletting adjusting assembly; the clamping mechanism further comprises a second pressing piece and a hydraulic driving assembly used for driving the second pressing piece to move relative to the first pressing piece, and the first pressing piece and the second pressing piece are matched with each other and used for clamping the chain.
Compared with the prior art, the clamping mechanism does not need to adjust the stroke of the pull wire by adjusting the nut, only needs to rotate the cam to adjust the position of the other pressing piece (the first pressing piece), and compared with the form of frequently adjusting the pull wire, the reliability and the precision of the clamping mechanism can be greatly enhanced.
Optionally, the hydraulic drive assembly includes:
the input oil cylinder comprises an input cylinder body and a piston rod in sliding sealing fit with the input cylinder body, and is used for being matched with a grinding mechanism of a grinding machine, and the piston rod is driven to move relative to the input cylinder body through rotation of the grinding mechanism;
the output oil cylinder is arranged on the fixed seat or the base and comprises an output cylinder body and a push rod in sliding sealing fit with the output cylinder body, and one end of the push rod penetrates out of the output cylinder body and is connected with the second pressing sheet; and
one end of the oil pipe is connected with the oil cavity of the input oil cylinder, and the other end of the oil pipe is connected with the oil cavity of the output oil cylinder;
the clamping mechanism is provided with a locking working position and a releasing working position; when the locking working position is reached, the grinding mechanism rotates downwards to drive the piston rod to retract into the input cylinder body, and the ejector rod stretches out to drive the second pressing sheet to move towards the first pressing sheet; when the working position is released, the grinding mechanism is reset, the piston rod is driven to move out of the input cylinder body, the ejector rod is retracted, and the second pressing piece is driven to be far away from the first pressing piece.
One of the pressing sheets of the clamping mechanism can be linked with the grinding mechanism through the hydraulic driving assembly, when the grinding mechanism is pressed down, the two pressing sheets can be relatively close to each other, the workpiece to be ground is fixed, when the grinding mechanism is reset (rotates upwards), the two pressing sheets are mutually far away, at the moment, the ground workpiece cannot be pressed by the two pressing sheets, the position of the ground workpiece can be conveniently adjusted, and the next position can be ground after the grinding mechanism is adjusted in place. The clamping form is quick and reliable, the ejector rod is reciprocated by adopting a hydraulic form through the matching of the input oil cylinder and the output oil cylinder, and the clamping force can be ensured to be stable and reliable relative to the inhaul cable.
The application also discloses a grinding machine comprising the clamping mechanism.
The beneficial effects of the application are as follows: through the rotation of cam, can apply pressure to first preforming to overcome the effort of elastic component to first preforming, make first preforming can slide relative bellying, can make the cam fix a position through location structure, can make first preforming fix a position promptly. The pressing piece adjusting component is convenient and reliable, and the position of the first pressing piece can be changed, so that the pressing piece adjusting component can be suitable for workpieces (such as chains) to be ground with different thicknesses.
Description of the drawings:
FIG. 1 is a schematic view of a grinding machine at a first perspective;
FIG. 2 is a schematic view of the grinder in a second view;
FIG. 3 is a schematic view of the grinder in a third view;
FIG. 4 is a schematic view of the grinder in a fourth view;
FIG. 5 is a cross-sectional view of the hydraulic drive assembly;
FIG. 6 is an exploded view of the base body and clamping mechanism;
FIG. 7 is a schematic view of FIG. 6 at another perspective;
FIG. 8 is a schematic view of a second tab, a first guide post, an auxiliary tab and a fourth spring;
FIG. 9 is a schematic view of a base and grinding mechanism;
fig. 10 is a partial exploded view of the base and grinding mechanism.
The reference numerals in the drawings are as follows:
1. a base; 2. a clamping mechanism; 3. a grinding mechanism; 4. a hydraulic drive assembly; 5. a tabletting adjustment assembly; 6. a positioning assembly; 7. a base body; 8. a transition support; 9. a vertical portion; 10. an output oil cylinder; 11. a second tabletting step; 12. a first tabletting; 13. a lower base; 14. an upper base; 15. a second scale; 16. a second indication structure; 17. a third scale; 18. a third indicating structure; 19. a first scale; 20. a first indication structure; 21. an oil pipe; 22. an output cylinder; 23. a push rod; 24. a locking member; 25. a first through hole; 26. a limit part; 27. a mating portion; 28. a threaded portion; 29. an oil cavity of the output oil cylinder; 30. inputting an oil cavity of an oil cylinder; 31. a second joint; 32. a first joint; 33. a chute; 34. a piston rod; 35. a first cylinder; 36. an annular portion; 37. a first spring; 38. a second cylinder; 39. a mounting port; 40. a first mounting portion; 41. a sliding hole; 42. an auxiliary pressing plate; 43. a second anti-drop portion; 44. a fourth spring; 45. a first guide post; 46. a rotating shaft; 47. a second adjustment aperture; 48. a second locking knob; 49. a second screw; 50. a fourth scale; 51. a fourth indicating structure; 52. a first adjustment aperture; 53. a first locking knob; 54. a limiting block; 55. a first screw; 56. a boss; 57. a second spring; 58. a second guide post; 59. a first anti-drop portion; 60. a mounting column; 61. positioning holes; 62. a threaded hole; 63. steel balls; 64. a third spring; 65. a rotation hole; 66. a gasket; 67. a screw; 68. a shifting handle; 69. a reset torsion spring; 70. an adjusting bolt; 71. a stem portion; 72. a limit nut; 73. a positioning rod; 74. an elastic element; 75. a positioning frame; 76. a nut portion; 77. a cam; 78. a spring mounting groove; 79. a through hole; 80. a first guide hole; 81. a motor; 82. grinding the chips; 83. a first mount; 84. an elastic reset piece; 85. an operation handle; 86. a fixing seat.
The specific embodiment is as follows:
the present application will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a grinding machine includes a base 1, a clamping mechanism 2 mounted on the base 1, and a grinding mechanism 3 rotatably mounted on the base 1.
As shown in fig. 9 and 10, the grinding machine further includes an elastic restoring member 84 for restoring the grinding mechanism 3, the grinding mechanism 3 includes a first mount 83, the first mount 83 is rotatably mounted on the base 1, a motor 81 is mounted on the first mount 83 and a grinding shaft rotatably provided on the first mount 83, the motor 81 is for driving the grinding shaft to rotate, and the grinding shaft is for mounting the grinding blade 82.
As shown in fig. 1, 2 and 5, the clamping mechanism 2 is mounted on the base 1 of the grinding machine, the clamping mechanism 2 includes a fixing base 86 and two pressing pieces mounted on the fixing base 86, the two pressing pieces are capable of moving relatively, the clamping mechanism 2 further includes a hydraulic driving assembly 4, and the hydraulic driving assembly 4 includes:
the input oil cylinder comprises an input cylinder body and a piston rod 34 in sliding sealing fit with the input cylinder body, the input oil cylinder is used for being matched with a grinding mechanism 3 of a grinding machine, and the piston rod 34 is driven to move relative to the input cylinder body through rotation of the grinding mechanism 3;
the output oil cylinder 10 is arranged on the fixed seat 86 or the base 1, the output oil cylinder 10 comprises an output cylinder body 22 and a push rod 23 which is in sliding sealing fit with the output cylinder body 22, and one end of the push rod 23 penetrates out of the output cylinder body 22 and is connected with one of the pressing sheets; and
one end of the oil pipe 21 is connected with an oil cavity 30 of the input oil cylinder, and the other end of the oil pipe is connected with an oil cavity 29 of the output oil cylinder 10;
the clamping mechanism 2 is provided with a locking working position and a releasing working position; when the locking working position is reached, the grinding mechanism 3 rotates downwards to drive the piston rod 34 to retract into the input cylinder body, the ejector rod 23 stretches out to drive the pressing sheet connected with the ejector rod 23 to move towards the other pressing sheet; when the working position is released, the grinding mechanism 3 resets, the piston rod 34 is driven to move out of the input cylinder body, the ejector rod 23 retracts, and the pressing piece connected with the ejector rod 23 is driven to be far away from the other pressing piece.
One of the pressing sheets of the clamping mechanism 2 can be linked with the grinding mechanism 3 through the hydraulic driving assembly 4, when the grinding mechanism 3 is pressed down, the two pressing sheets can be relatively close to each other to fix a workpiece to be ground, when the grinding mechanism 3 is reset (rotates upwards), the two pressing sheets are far away from each other, at the moment, the ground workpiece cannot be pressed by the two pressing sheets, the position of the ground workpiece can be conveniently adjusted, and the next position can be ground after the grinding workpiece is adjusted in place. The clamping mode is quick and reliable, the ejector rod 23 is reciprocated by adopting the hydraulic mode through the matching of the input oil cylinder and the output oil cylinder 10, and compared with a guy cable, the clamping mode is high in efficiency, and the stability and reliability of clamping force during each clamping can be ensured.
The sliding seal fit refers to both sliding fit and sealing fit. The rotation of the grinding mechanism 3 according to the present application does not refer to the rotation of the motor 81, but rather refers to the rotation of the grinding mechanism 3 as a whole with respect to the base 1.
The pressing piece which is not matched with the ejector rod 23 can be integrally formed with the fixed seat 86, can be independently arranged on the fixed seat 86 or is in a movable matched relation with the fixed seat 86.
In this embodiment, two press plates of the clamping mechanism 2 are used to clamp the chain to be ground.
In this embodiment, the grinding machine is a chain grinder, in which case the workpiece clamped by the two pressing pieces is a chain (chain of a saw chain), and may be a grinding machine for grinding other members in actual use.
As shown in fig. 5, in the present embodiment, the piston rod 34 has an annular portion 36 on an outer side wall thereof, and the input cylinder includes:
a first cylinder 35 having a chute 33 in the middle;
the second cylinder 38 is fixedly connected with the first cylinder 35, one end of the piston rod 34 is in sliding sealing fit with the sliding groove 33 of the first cylinder 35, the other end of the piston rod passes through the second cylinder 38, the annular part 36 is positioned in the second cylinder 38, and the outer diameter of the annular part 36 is larger than the inner diameter of the sliding groove 33; and
the first spring 37 is sleeved on the piston rod 34, one end of the first spring 37 abuts against the annular portion 36, and the other end abuts against the end of the second cylinder 38 away from the chute 33.
The annular portion 36 of the present application may be a retainer ring attached to the piston rod 34 or may be integrally formed with the piston rod 34.
This configuration of the input cylinder, which causes the piston rod 34 to have a tendency to retract inwardly under the influence of the first spring 37, facilitates the efficient operation of the hydraulic drive assembly 4 when the grinding mechanism 3 is depressed, causing the ram 23 to extend.
As shown in fig. 2, 5 and 6, in this embodiment, the output cylinder 22 has an opening at one end, the opening end of the output cylinder 22 has an internal thread, the output cylinder 10 further includes a locking member 24, the locking member 24 has a first through hole 25 through which the push rod 23 passes along the axial direction, the locking member 24 includes a limiting portion 26, a mating portion 27 and a threaded portion 28 in order along the axial direction, and the threaded portion 28 mates with the internal thread of the input cylinder;
the fixing base 86 has a first mounting portion 40, the first mounting portion 40 has a mounting opening 39, the fitting portion 27 of the locking member 24 is inserted into the mounting opening 39, and the limiting portion 26 and the opening end of the input cylinder are located at two sides of the first mounting portion 40, respectively.
This mating pattern of the locking member 24 and the mounting port 39 allows for convenient and secure securement of the input cylinder. In the mounting process, the fitting portion 27 is only required to be inserted into the mounting opening 39, and then the limiting portion 26 of the locking member 24 is rotated, so that the side wall of the output cylinder 22 and the limiting portion 26 clamp the first mounting portion 40.
As shown in fig. 2 and 6, in the present embodiment, the first mounting portion 40 is disposed on the fixing base 86, the mounting opening 39 is disposed in the middle of the first mounting portion 40, the first guide posts 45 are mounted on both sides of the first mounting portion 40, the pressing sheet connected to the ejector rod 23 is provided with a first guide hole 80 matched with the first guide posts 45, and the pressing sheet connected to the ejector rod 23 is slidably sleeved on the first guide posts 45 through the first guide hole 80.
The pressing piece connected to the jack 23 can be reciprocally moved in the direction of the first guide post 45 by the engagement of the first guide post 45 and the first guide hole 80.
As shown in fig. 5, in the present embodiment, the output cylinder 10 is provided with a first connector 32, the first connector 32 is communicated with an oil cavity of the output cylinder 10, the input cylinder is provided with a second connector 31, the second connector 31 is communicated with the oil cavity of the input cylinder, side walls of the first connector 32 and the second connector 31 are respectively provided with a threaded port, and two ends of the oil pipe 21 are respectively in threaded connection with the corresponding threaded ports.
As shown in fig. 1 and 2, in the present embodiment, the two press sheets are a first press sheet 12 and a second press sheet 11, respectively, wherein the first press sheet 12 is an outer press sheet, the second press sheet 11 is an inner press sheet, and the ejector rod 23 is connected to the inner press sheet (the second press sheet 11).
The first mounting portion 40 may also be disposed on the base 1 during actual use, at least two first guide posts 45 are disposed on the fixing base 86, and the inner pressing piece (i.e. the second pressing piece 11) has a first guide hole 80 matched with the first guide post 45, and the inner pressing piece (i.e. the second pressing piece 11) is slidably sleeved on the first guide post 45 through the first guide hole 80.
In this embodiment, an input cylinder body of the input cylinder is rotatably mounted on the base 1, and a portion of the piston rod 34 located outside the input cylinder body is rotatably mounted on the first mounting seat 83; alternatively, the input cylinder body of the input cylinder is rotatably mounted on the first mounting seat 83, and a portion of the piston rod 34 located outside the input cylinder body is rotatably mounted on the base 1.
In this embodiment, the elastic restoring member 84 may be a torsion spring, when the grinding mechanism 3 overcomes the force of the elastic restoring member 84 and rotationally pushes down, the piston rod 34 is compressed at this time, and the oil in the oil cavity of the input oil cylinder enters the oil cavity of the output oil cylinder 10 through the oil pipe 21, so that the ejector rod 23 ejects under the action of oil pressure to drive the pressing sheet to move towards another pressing sheet; when the grinding mechanism 3 is reset, the piston rod 34 is pulled out at this time, the oil in the oil cavity of the output cylinder 10 flows into the oil cavity of the input cylinder, and the ejector rod 23 is retracted.
As shown in fig. 9 and 10, in the present embodiment, the base 1 includes a base body 7, a transition bracket 8 is mounted on the base body 7, a first mounting seat 83 is rotatably mounted on the transition bracket 8, and one end of an input cylinder is rotatably mounted on the transition bracket 8. In practical use, the base body 7 and the transition bracket 8 can be integrally formed.
As shown in fig. 9 and 10, in the present embodiment, an operation handle 85 is further provided on the first mount 83.
As shown in fig. 1, 2, 6 and 7, the clamping mechanism 2 includes a tablet adjustment assembly 5 for adjusting the position of the first tablet 12, the tablet adjustment assembly 5 including a fixed base 86 and an elastic member, the fixed base 86 including a boss 56, the first tablet 12 being slidably mounted on the boss 56, the elastic member for causing the first tablet 12 to have a movement tendency toward the boss 56; the tablet adjustment assembly 5 further comprises:
a cam 77 rotatably mounted on the fixing base 86, the cam 77 abutting against the first presser 12, the distance between the first presser 12 and the boss 56 being adjusted by rotation of the cam 77;
and the positioning structure is arranged between the cam 77 and the fixed seat 86 and is used for positioning the cam 77 after adjustment.
By means of rotation of the cam 77, pressure can be applied to the first press sheet 12, so that the acting force of the elastic piece on the first press sheet 12 is overcome, the first press sheet 12 can slide relative to the protruding portion 56, and the cam 77 can be positioned through the positioning structure, namely, the first press sheet 12 can be positioned. The pressing sheet adjusting assembly 5 is convenient and reliable, and can change the position of the first pressing sheet 12, so that workpieces (such as chains) to be ground with different thicknesses can be matched.
As shown in fig. 1 and 6, in this embodiment, at least two protruding portions 56 are provided, the protruding portions 56 have second guide holes, second guide columns 58 are slidably mounted on the second guide holes, the second guide columns 58 are inserted into the corresponding second guide holes, two ends of the second guide columns 58 are located outside the second guide holes, one end of each second guide column 58 has a first anti-falling portion 59, and the other end of each second guide column 58 is connected with the first compression sheet 12; the elastic member is a second spring 57 sleeved on the second guide post 58, one end of the second spring 57 is matched with the protruding portion 56, and the other end of the second spring 57 is matched with the first anti-falling portion 59.
The first presser 12 can be always abutted against the cam 77 by the action of the second spring 57, and the relative position of the first presser 12 can be changed when the cam 77 rotates.
As shown in fig. 6 and 7, in the present embodiment, the cam 77 has an eccentrically disposed rotation hole 65, the fixing base 86 has a mounting post 60, and the cam 77 is sleeved on the mounting post 60 through the rotation hole 65.
As shown in fig. 6, in this embodiment, the mounting post 60 has a threaded hole 62, the rotation hole 65 is a countersunk hole, a cam 77 is defined on the mounting post 60 by a screw 67, one end of the screw 67 passes through the countersunk hole and then is engaged with the threaded hole 62 of the mounting post 60, and the other end is clearance-engaged with the step of the countersunk hole.
The step clearance fit with the countersink is provided in the application, and one is that the outer diameter of the head of the screw 67 is larger than the small diameter section of the countersink, and the other is that a gasket 66 is arranged on the step, and the head of the screw 67 is abutted against or clearance fit with the gasket 66 (in the case of the embodiment).
As shown in fig. 6 and 7, in the present embodiment, the positioning structure includes:
a spring mounting groove 78 provided on the cam 77;
a third spring 64 mounted in the spring mounting slot 78;
the positioning holes 61 are arranged on the fixed seat 86 and are distributed in a circular arc shape;
the steel ball 63 is disposed in the spring mounting groove 78, one side abuts against the outer end of the third spring 64, and the other side is engaged with the positioning hole 61.
The cam 77 can drive the steel balls 63 to move between different positioning holes 61 when rotating, and the third spring 64 can fix the steel balls 63 on the corresponding positioning holes 61, so that the positioning function is realized.
As shown in fig. 1 and 6, in the present embodiment, the fixing base 86 has a plurality of first scales 19, each first scale 19 corresponds to the positioning hole 61 one by one, the cam 77 has a first indicating structure 20, and the first indicating structure 20 is used for cooperating with the first scale 19 to determine an adjustment gear of the cam 77.
By the cooperation of the first scale 19 and the first indicating structure 20, a rapid adjustment of various gear positions can be achieved. In practice, at least two of the first scale representations are different, preferably each of the first scale representations 19 is different. The first indicator structure 20 is a marking, protrusion or recess.
As shown in fig. 6 and 7, in this embodiment, the tablet adjusting assembly 5 further includes a handle 68 fixed relative to the cam 77, and the handle 68 is configured to rotate the cam 77.
The hydraulic driving assembly 4 of the clamping mechanism 2 is used for driving the second pressing piece 11 to move relative to the first pressing piece 12, and the first pressing piece 12 and the second pressing piece 11 are matched with each other and are used for clamping a chain. When the grinding mechanism 3 rotates downwards in the locking working position, the piston rod 34 is driven to retract into the input cylinder body, the ejector rod 23 extends out, and the second pressing piece 11 is driven to move towards the first pressing piece 12; when the working position is released, the grinding mechanism 3 resets, the piston rod 34 is driven to move out of the input cylinder body, the ejector rod 23 retracts, and the second pressing piece 11 is driven to be far away from the first pressing piece 12.
As shown in fig. 1, 4, 6 and 7, the present embodiment also discloses a fixing base 86 adjusting structure of a grinding machine, including:
the base 1 is provided with a strip-shaped first adjusting hole 52;
the fixed seat 86 is provided with a limiting block 54, and the limiting block 54 extends into the first adjusting hole 52;
the first locking component is arranged on the first adjusting hole 52 in a penetrating way and is used for connecting the base 1 and the fixing seat 86.
The fixing seat 86 can reciprocate along the direction of the first adjusting hole 52 and adjust the position by the limiting block 54 extending into the first adjusting hole 52 and the first locking component penetrating through the first adjusting hole 52, and can be fixed by the first locking component after being adjusted in place. The grinding machine is adjustable in position by means of the fixed mount 86 adjustment structure to accommodate different sized work pieces (chains) and different sized grinding blades 82 (sand tables).
As shown in fig. 6 and 7, in the present embodiment, the base 1 has a plurality of second graduations 15 along the length direction of the first adjustment hole 52. The base 1 is provided with a second indicating structure 16, and the second indicating structure 16 is matched with the second scale 15 and is used for determining the position of the base 1.
In this embodiment, the second indicator structure 16 is shown as a mark, protrusion or recess.
As shown in fig. 6 and 7, in the present embodiment, the first locking assembly includes:
the first screw 55 is fixed on the fixed seat 86, and one end of the first screw 55 passes through the first adjusting hole 52 and is positioned outside the first adjusting hole 52;
the first locking knob 53 is in threaded fit with one end of the first screw 55 away from the base 1, and the first locking knob 53 is used for tightening and fixing the fixing seat 86 and the base 1.
As shown in fig. 6 and 7, in the present embodiment, the fixing base 86 includes a lower base 13 and an upper base 14, the first screw 55 is fixed to the upper base 14, the lower base 13 has a through hole 79 through which the first screw 55 passes, and the upper base 14 can rotate relative to the lower base 13 and is fixed by the first locking knob 53 after rotating in place.
In this embodiment, the positioning component of the clamping mechanism and the related structure for adjusting the first pressing piece are all disposed on the upper base, as shown in fig. 6.
The lower seat body 13 and the upper seat body 14 can rotate relatively, two pressing sheets are arranged on the upper seat body 14, the positions of the pressing sheets can be adjusted through the matching mode of the lower seat body 13 and the upper seat body 14, and the applicability of the grinding machine is stronger.
In this embodiment, a third scale 17 is disposed on the lower base 13 around the circumference of the upper base 14, and the upper base 14 has a third indication structure 18 thereon, where the third indication structure 18 cooperates with the third scale 17 to determine the position of the upper base 14.
In actual use, the first locking assembly may also be configured such that: the first locking assembly comprises a first locking knob, the first locking knob comprises a first knob body and a first screw rod fixed with the first knob body, the base is provided with a threaded hole, the first screw rod passes through the first adjusting hole and then is in threaded connection with the threaded hole of the base, and the first locking knob is used for enabling the fixing base to be fixed with the base in a tensioning mode.
As shown in fig. 2, 6 and 8, in this embodiment, the second presser plate 11 is provided with clamping structures on both sides, and the first presser plate 12 is located between the two clamping structures.
The first preforming 12 and second preforming 11 mutually support, and during operation, two preformings draw close each other, compress tightly the chain, can treat grinding work piece (chain) and press from both sides tightly in advance through setting up clamp structure, prevent when first preforming 12 and second preforming 11 keep away from, treat that grinding work piece is not hard up even dislocation.
As shown in fig. 2, 6 and 7, in the present embodiment, the clamping structure includes:
first guide holes 80 provided at both sides of the second press sheet 11;
the sliding holes 41 are arranged on the first mounting part 40, and the sliding holes 41 are arranged in one-to-one correspondence with the first guide holes 80;
the first guide post 45 is slidably arranged on the corresponding first guide hole 80 and sliding hole 41, one end of the first guide post 45 passes through the second pressing piece 11, the other end passes through the first mounting part 40, an auxiliary pressing plate 42 is arranged at one end of the first guide post 45 passing through the second pressing piece 11, and a second anti-falling part 43 is arranged at one end of the first guide post 45 passing through the first mounting part 40;
and a fourth spring 44 which is sleeved on the first guide post 45, wherein one end of the fourth spring 44 is abutted against the second anti-falling part 43, and the other end is matched with the first mounting part 40, so that the auxiliary pressing plate 42 has a tendency to move to the side of the second pressing plate 11.
The workpiece to be ground can be clamped between the auxiliary pressing plate 42 and the first mounting portion 40 by the fourth spring 44 and the first guide post 45.
In actual use, the clamping structure can be independently arranged on the second pressing sheet 11, and at this time, the clamping structure comprises:
the first guide holes are arranged on two sides of the second pressing sheet;
the first guide column is arranged on the first guide hole in a sliding manner, two ends of the first guide column are located on the outer side of the first guide hole, one end of the first guide column is provided with a second anti-falling part, the other end of the first guide column is provided with an auxiliary pressing plate, and the second anti-falling part is located at one end, far away from the first pressing plate, of the first guide column;
and one end of the fourth spring is propped against the second anti-falling part, and the other end of the fourth spring is matched with the second pressing piece, so that the auxiliary pressing plate has a trend of moving to one side of the second pressing piece.
The workpiece to be ground can be clamped between the auxiliary pressing plate and the second pressing plate through the fourth spring and the first guide column.
In practice, the clamping structure may be provided at both ends of the first presser plate 12, in which case the second presser plate is located between the two auxiliary presser plates. When the tablet adjusting component 5 is not provided, the ejector rod 23 can be connected with the first tablet 12, and the second tablet 11 can be movably mounted or directly and fixedly mounted on the fixed seat 86.
As shown in fig. 3, 9 and 10, the grinding machine of the present embodiment further includes an adjusting structure for adjusting the angle of the grinding mechanism 3, specifically including:
the base body 7, the base body 7 is provided with a circular arc-shaped second adjusting hole 47;
the transition bracket 8 is rotatably mounted on the base body 7 through a rotating shaft 46, a second adjusting hole 47 is arranged around the rotating shaft 46, and the grinding mechanism 3 is rotatably mounted on the transition bracket 8;
and the second locking component is arranged on the second adjusting hole 47 in a penetrating way and is used for connecting the transition bracket 8 and the base body 7.
The transition support 8 is rotatably arranged on the base body 7 through the rotating shaft 46, the grinding mechanism 3 is rotatably arranged on the transition support 8, and after the arrangement, the angle of the whole grinding mechanism 3 can be adjusted by adjusting the angle of the transition support 8; by providing the second adjustment aperture 47 and the second locking assembly, the transition bracket 8 can be fixed in place after adjustment, so that the grinding mechanism 3 is maintained in the adjusted position.
In the present application, "the second adjusting holes 47 are disposed around the rotating shaft 46" means that each point on the circular arc-shaped side wall of the second adjusting holes 47 near the rotating shaft 46 is equidistant from the axis of the rotating shaft 46.
As shown in fig. 3 and 10, in the present embodiment, the second locking assembly includes a second locking knob 48, the second locking knob 48 includes a second knob body and a second screw 49 fixed to the second knob body, the transition support 8 has a threaded hole, the second screw 49 passes through the second adjusting hole 47 and is in threaded connection with the threaded hole of the transition support 8, and the second locking knob 48 is used for tightening and fixing the transition support 8 and the base body 7.
In actual use, the second locking assembly may also be configured such that: the second locking assembly includes:
the second screw rod is fixed on the transition bracket, and one end of the second screw rod passes through the second adjusting hole and is positioned at the outer side of the second adjusting hole;
and the second locking knob is in threaded fit with one end of the second screw away from the transition support, and is used for tensioning and fixing the transition support and the base body.
As shown in fig. 3 and 10, in the present embodiment, the base body 7 has a fourth scale 50 disposed in an arc shape, and the fourth scale 50 corresponds to the second adjustment hole 47. The transition support 8 is provided with a fourth indicating structure 51, and the fourth indicating structure 51 is matched with the fourth scale 50 and used for determining the position of the transition support 8.
As shown in fig. 9, an elastic restoring member 84 for restoring the grinding mechanism 3 is also installed between the transition bracket 8 and the grinding mechanism 3. The resilient return member 84 may be a torsion spring.
As shown in fig. 9 and 10, in the present embodiment, one end of the base body 7 has a vertical portion 9, and the transition bracket 8 is rotatably mounted on the vertical portion 9. The installation of the transition support 8 can be facilitated by providing the vertical portion 9.
As shown in fig. 1 and 6, the clamping mechanism 2 further includes a positioning assembly 6, the positioning assembly 6 including:
the positioning frame 75 is rotatably arranged on the fixed seat 86;
the mounting screw rod is penetrated on the positioning frame 75, the rod part 71 of the mounting screw rod penetrates out of the positioning frame 75, and the nut part 76 of the mounting screw rod is abutted against the positioning frame 75;
the positioning rod 73 is sleeved on the rod part 71 and is positioned at the upper parts of the two pressing sheets and used for positioning a workpiece to be ground;
an elastic member 74 provided between the positioning rod 73 and the positioning frame 75 for making the positioning rod 73 have a movement tendency away from the positioning frame 75;
the limiting nut 72 is in threaded connection with the rod portion 71, the end portion of the limiting nut 72 abuts against the locating rod 73, and the limiting nut 72 and the elastic element 74 are located on two sides of the locating rod 73 and used for limiting the axial position of the locating rod 73 on the mounting screw.
The axial position of the positioning rod 73 can be defined by the stop nut 72 and the elastic member 74. When the position of the positioning rod 73 needs to be adjusted, the limiting nut 72 is only required to be rotated, and the positioning rod 73 can be automatically adjusted to a new position under the action of the elastic element 74. The positioning assembly 6 of the present application enables quick adjustment of the axial position of the positioning rod 73.
The workpiece to be ground refers to a workpiece such as a chain and the like which needs to be positioned.
In the present embodiment, the elastic element 74 is a spring sleeved on the rod portion 71.
As shown in fig. 6, in the present embodiment, the positioning assembly 6 further includes:
an adjusting bolt 70 screwed on the fixing base 86;
and a reset torsion spring 69, which is arranged at the rotating fit position of the positioning frame 75 and the fixed seat 86, and is used for enabling the side wall of the positioning frame 75 to be abutted against the end part of the adjusting bolt 70.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover all equivalent structures as modifications within the scope of the application, either directly or indirectly, as may be contemplated by the present application.
Claims (8)
1. The clamping mechanism of the grinding machine is arranged on a base of the grinding machine and is characterized by comprising a pressing piece adjusting assembly, wherein the pressing piece adjusting assembly comprises a fixed seat and an elastic piece, the fixed seat comprises a protruding part, a first pressing piece is slidably arranged on the protruding part, and the elastic piece is used for enabling the first pressing piece to have a movement trend towards the protruding part; the tablet adjustment assembly further comprises:
the cam is rotatably arranged on the fixed seat and is abutted against the first pressing piece, and the distance between the first pressing piece and the protruding part is adjusted through rotation of the cam;
the positioning structure is arranged between the cam and the fixed seat and is used for positioning the cam after adjustment;
the clamping mechanism further comprises a second pressing piece and a hydraulic driving assembly, wherein the hydraulic driving assembly is used for driving the second pressing piece to move relative to the first pressing piece, and the first pressing piece and the second pressing piece are matched with each other and are used for clamping a chain;
the hydraulic drive assembly includes:
the input oil cylinder comprises an input cylinder body and a piston rod in sliding sealing fit with the input cylinder body, and is used for being matched with a grinding mechanism of a grinding machine, and the piston rod is driven to move relative to the input cylinder body through rotation of the grinding mechanism;
the output oil cylinder is arranged on the fixed seat or the base and comprises an output cylinder body and a push rod in sliding sealing fit with the output cylinder body, and one end of the push rod penetrates out of the output cylinder body and is connected with the second pressing sheet; and
one end of the oil pipe is connected with the oil cavity of the input oil cylinder, and the other end of the oil pipe is connected with the oil cavity of the output oil cylinder;
the clamping mechanism is provided with a locking working position and a releasing working position; when the locking working position is reached, the grinding mechanism rotates downwards to drive the piston rod to retract into the input cylinder body, and the ejector rod stretches out to drive the second pressing sheet to move towards the first pressing sheet; when the working position is released, the grinding mechanism is reset, the piston rod is driven to move out of the input cylinder body, the ejector rod is retracted, and the second pressing sheet is driven to be far away from the first pressing sheet;
the outer side wall of the piston rod is provided with an annular part, and the input cylinder body comprises:
the middle part of the first cylinder body is provided with a chute;
the second cylinder body is fixedly connected with the first cylinder body, one end of the piston rod is in sliding sealing fit with the sliding groove of the first cylinder body, the other end of the piston rod penetrates through the second cylinder body, the annular part is positioned in the second cylinder body, and the outer diameter of the annular part is larger than the inner diameter of the sliding groove; and
and one end of the first spring is propped against the annular part, and the other end of the first spring is propped against one end of the second cylinder body far away from the sliding groove.
2. The clamping mechanism of a grinding machine according to claim 1, wherein at least two of the protruding parts are provided with second guide holes, second guide posts are slidably arranged on the second guide holes, the second guide posts penetrate through the corresponding second guide holes, two ends of each second guide post are positioned outside the corresponding second guide holes, one end of each second guide post is provided with a first anti-falling part, and the other end of each second guide post is connected with the corresponding first pressing piece; the elastic piece is a second spring sleeved on the second guide post, one end of the second spring is matched with the protruding part, and the other end of the second spring is matched with the first anti-falling part.
3. The grinding machine clamping mechanism of claim 1 wherein said cam has an eccentrically disposed rotation bore and said mounting bracket has a mounting post, said cam being received through said rotation bore in said mounting post.
4. A clamping mechanism for a grinding machine as claimed in claim 3 wherein said mounting post has a threaded bore and said rotation bore is a counter bore, and wherein the cam is defined on the mounting post by a screw having one end which passes through the counter bore and engages the threaded bore of the mounting post and the other end which is in clearance fit with the step of the counter bore.
5. The grinding machine clamping mechanism of claim 1 wherein said positioning structure comprises:
the spring mounting groove is arranged on the cam;
a third spring installed in the spring installation groove;
the positioning holes are arranged on the fixed seat and are distributed in an arc shape;
the steel ball is arranged in the spring mounting groove, one side of the steel ball is abutted against the outer end of the third spring, and the other side of the steel ball is matched with the positioning hole.
6. The grinding machine clamping mechanism of claim 5 wherein the mounting base has a plurality of first graduations, each first graduation being in one-to-one correspondence with a locating hole, and the cam has a first indexing structure thereon for cooperating with the first graduation to determine the adjustment gear of the cam.
7. The grinding machine clamping mechanism of claim 1 wherein the pad adjustment assembly further includes a handle secured relative to the cam for rotating the cam.
8. A grinding machine comprising the clamping mechanism of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823927.9A CN107398598B (en) | 2017-09-13 | 2017-09-13 | Sheeting adjustment assembly, clamping mechanism of grinding machine and grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823927.9A CN107398598B (en) | 2017-09-13 | 2017-09-13 | Sheeting adjustment assembly, clamping mechanism of grinding machine and grinding machine |
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| Publication Number | Publication Date |
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| CN107398598A CN107398598A (en) | 2017-11-28 |
| CN107398598B true CN107398598B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710823927.9A Active CN107398598B (en) | 2017-09-13 | 2017-09-13 | Sheeting adjustment assembly, clamping mechanism of grinding machine and grinding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108717816B (en) * | 2018-08-15 | 2023-11-10 | 朱发军 | File level auxiliary correction device for file training |
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|---|---|
| CN107398598A (en) | 2017-11-28 |
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Effective date of registration: 20230823 Address after: 321403 no.2-1, Xinzhong East Road, Xinbi street, Jinyun County, Lishui City, Zhejiang Province Applicant after: Zhejiang Jiahong Tool Manufacturing Co.,Ltd. Address before: No. 6, 1st Road, Huangtang Industrial Zone, Yongkang City, Jinhua City, Zhejiang Province, 321300 Applicant before: YONGKANG JIAHONG TOOLS MANUFACTURE Co.,Ltd. |
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