CN108436763B - Clamping device for clamping sample during polishing of polishing machine - Google Patents
Clamping device for clamping sample during polishing of polishing machine Download PDFInfo
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- CN108436763B CN108436763B CN201810181749.9A CN201810181749A CN108436763B CN 108436763 B CN108436763 B CN 108436763B CN 201810181749 A CN201810181749 A CN 201810181749A CN 108436763 B CN108436763 B CN 108436763B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
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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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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The application provides a clamping device for clamping a sample during polishing of a polishing machine, which comprises an upper base, a lower base, a reciprocating frame, a pressure spring supporting seat, a pressure spring supporting rod, a pressure spring compression rod, a sleeve, a storage box, a compression cover guide rod, a driving hook and a clamping assembly; the extrusion of the grinding paste is controlled by utilizing the balance principle of the friction force of the sample and the spring force of the pressure spring, and when the friction force is larger than the spring force of the pressure spring after being decomposed, the lower base slides to finally drive the pressing cover to slide downwards, so that the grinding paste is extruded; when the friction force is smaller than the spring force after being decomposed, the pressure spring pushes the pressure spring compression rod to return to finally drive the compression cover to slide upwards, so that the extrusion of the grinding paste is stopped; the repeated circulation is performed in such a way that a proper amount of grinding paste is always stored at the friction surface between the polishing disc and the sample, so that the sample is effectively, stably and firmly clamped during polishing, and the polishing precision and the polishing quality are improved.
Description
Technical Field
The invention relates to the technical field of experimental instruments, in particular to a clamping device for clamping a sample during polishing of a polishing machine.
Background
With the development of modern precision manufacturing technology and the deep research of tribology, the effect of surface morphology is more and more important, and has become the focus of research. And when researching different surface morphologies, a great deal of experiments are needed to demonstrate the effect of the surface morphology under different working conditions.
The polishing machine plays a very important role in practical production and experiments, and particularly in the experimental stage, the processing surface is polished and cleaned firstly when the novel surface texture is processed.
The polishing machine for the traditional laboratory has the problems of low processing efficiency, lack of a matched sample clamping device, unstable processing precision and processing quality and the like.
With the increasing demand of polishing machines, how to improve the defects becomes a critical problem.
Disclosure of Invention
The invention aims to provide a clamping device for clamping a sample during polishing of a polishing machine, which can effectively, stably and firmly clamp the sample during polishing and improve polishing precision and polishing quality.
For solving the technical problem, the technical scheme provided by the application is as follows:
a clamping device for clamping a sample during polishing of a polishing machine comprises an upper base, a lower base, a reciprocating frame, a pressure spring supporting seat, a pressure spring supporting rod, a pressure spring pressing rod, a sleeve, a stock box, a pressing cover guide rod, a driving hook and a clamping assembly for clamping the sample;
a plurality of guide distance limiting through holes with rectangular cross sections are formed in the upper surface of the upper base, and a chute is formed in the lower surface of the upper base;
the upper surface of the lower base is provided with a boss matched with the chute, and the boss is inserted into the chute to form a sliding pair for the lower base to slide linearly in a reciprocating manner along the length direction of the chute;
the reciprocating frame is connected with the lower base through a guide distance limiting bolt penetrating through the guide distance limiting through hole and is used for driving the lower base to move linearly along the length direction of the sliding groove, and the length of the guide distance limiting through hole is larger than the outer diameter of a screw rod of the guide distance limiting bolt;
the compression spring supporting seat is arranged on the upper surface of the upper base, one end of the compression spring supporting rod is fixed in a through hole on the compression spring supporting seat, the other end of the compression spring supporting rod is in sliding connection with the through hole on the compression spring pressing rod, the sleeve is arranged on the compression spring supporting rod through a bolt connecting sleeve so as to be used for adjusting the position of the sleeve on the compression spring supporting rod, the compression spring pressing rod is in transmission connection with the reciprocating frame so as to be used for the reciprocating frame to drive the compression spring pressing rod to linearly move along the length direction of the sliding groove, the compression spring is sleeved on the compression spring supporting rod, one end of the compression spring abuts against the compression spring pressing rod, and the other end of the compression spring abuts against the sleeve so as to be used for pushing the compression spring pressing rod to return;
the storage box is rotatably arranged in a buckling opening on the upper base through buckling connection, at least two extrusion openings are formed in the lower bottom surface of the storage box, the compression cover is arranged in the storage box, and the compression cover is in sealing sliding connection with the inner wall surface of the storage box;
the bottom end of the driving hook is in transmission connection with the reciprocating frame, the top end of the driving hook is in pin shaft connection with one end of the pressing cover guide rod, the other end of the pressing cover guide rod is in pin shaft connection with the upper cover surface of the pressing cover, the pressing cover guide rod is used for driving the pressing cover to reciprocate up and down in the storage box in a sealing manner, and the vertical straight line distance between the top end of the driving hook and the plane of the upper cover surface of the pressing cover is smaller than the length of the pressing cover guide rod;
the clamping assembly is arranged on the lower surface of the lower base.
Preferably, the clamping assembly comprises a left chuck, a left bolt, a left chuck support seat, a right chuck, a right bolt and a right chuck support seat;
the left chuck support seat is arranged on the lower surface of the lower base, a screw rod of the left bolt is fixedly penetrated in an internal threaded hole on the left chuck support seat through threaded connection, and the left chuck is connected with a free end spherical hinge of the left bolt;
the right chuck support seat is arranged on the lower surface of the lower base, a screw rod of the right bolt is fixedly penetrated in an internal threaded hole on the right chuck support seat through threaded connection, and the right chuck is connected with a free end spherical hinge of the right bolt;
the left and right bolts are symmetrical to each other for clamping the sample by adjusting the spacing between the left and right clamps by screwing the left and/or right bolts.
Preferably, the axial center lines of the left bolt and the right bolt are perpendicular to the length direction of the chute;
the length direction of the guide distance limiting through hole is parallel to the length direction of the sliding groove.
Preferably, the reciprocating frame is of a planar I-shaped structure formed by a longitudinal supporting rod and two transverse supporting rods;
the top end of the guide distance limiting bolt is connected with the transverse supporting rod.
Preferably, the compression spring compression rod is in bolt connection with a longitudinal support rod in the reciprocating frame for adjusting the position of the compression spring compression rod on the longitudinal support rod.
Preferably, the driving hook is of an L-shaped structure formed by a horizontal rod and a vertical rod, and the horizontal rod and/or the vertical rod is/are a telescopic rod so as to adjust the uppermost position of the pressing cover in the storage box in an upward sealing sliding manner and the lowermost position of the pressing cover in a downward sealing sliding manner.
Preferably, a handle is arranged on the upper surface of the upper base.
The application provides a clamping device for clamping a sample during polishing of a polishing machine, which comprises an upper base, a lower base, a reciprocating frame, a pressure spring supporting seat, a pressure spring supporting rod, a pressure spring compression rod, a sleeve, a storage box, a compression cover guide rod, a driving hook and a clamping assembly; the extrusion of the grinding paste is controlled by utilizing the balance principle of the friction force of the sample and the spring force of the pressure spring, when the friction force is larger than the spring force of the pressure spring after being decomposed, the lower base slides to drive the reciprocating frame to move through a series of transmission connection, then drive the driving hook to move, then drive the guide rod of the pressing cover to move, and then drive the pressing cover to slide downwards in a storage box in a sealing manner, so that the grinding paste is extruded;
when the friction force is smaller than the spring force after being decomposed, the pressure spring pushes the pressure spring compression rod to return, the movement of the pressure spring compression rod firstly drives the reciprocating frame to move through a series of transmission connection, then drives the driving hook to move, then drives the compression cover guide rod to move, and then drives the compression cover to upwards seal and slide in the storage box, so that the extrusion of the grinding paste is stopped;
the repeated circulation is performed in such a way, so that a proper amount of grinding paste is always stored at the friction surface between the polishing disc and the sample during polishing, and the friction force between the polishing disc and the sample during polishing is always in a dynamic stable range, thereby finally realizing effective, stable and firm clamping of the sample during polishing, and improving polishing precision and polishing quality.
Drawings
Fig. 1 is a schematic perspective view of a clamping device for clamping a sample during polishing by a polishing machine according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of another angle of FIG. 1;
FIG. 3 is a schematic perspective view of another angle of FIG. 1;
fig. 4 is a schematic perspective view of another angle of fig. 1.
In the figure: 1, a base, a guide clearance through hole and a sliding groove 102 are arranged on the base;
2, a lower base and a boss 201;
3 a reciprocating frame, 301 a longitudinal supporting rod, 302 a transverse supporting rod and 303 a guide distance limiting bolt;
401 pressure spring supporting seats, 402 pressure spring supporting rods, 403 pressure springs, 404 pressure spring pressing rods and 405 sleeves;
501 storage box, 502 pressing cover, 503 pressing cover guide rod, 504 driving hook, 505 extruding opening;
6 clamping components, a left clamp head 601, a left bolt 602, a left clamp head support seat 603, a right clamp head 604, a right bolt 605 and a right clamp head support seat 606;
7 handles.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "axial", "radial", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships as shown in actual use of the clamping device provided based on the present application are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the invention.
Referring to fig. 1 to 4, fig. 1 is a schematic perspective view illustrating a clamping device for clamping a sample during polishing by a polishing machine according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of another angle of FIG. 1; FIG. 3 is a schematic perspective view of another angle of FIG. 1; fig. 4 is a schematic perspective view of another angle of fig. 1.
The application provides a clamping device for clamping a sample during polishing of a polishing machine, which comprises an upper base 1, a lower base 2, a reciprocating frame 3, a pressure spring supporting seat 401, a pressure spring supporting rod 402, a pressure spring 403, a pressure spring pressing rod 404, a sleeve 405, a stock box 501, a pressing cover 502, a pressing cover guide rod 503, a driving hook 504 and a clamping component for clamping the sample;
a plurality of guiding distance limiting through holes 101 with rectangular cross sections are formed in the upper surface of the upper base 1, and a sliding groove 102 is formed in the lower surface of the upper base 1;
a boss 201 for matching with the chute 102 is arranged on the upper surface of the lower base 2, and the boss 201 is inserted into the chute 102 to form a sliding pair for the lower base 2 to slide linearly and reciprocally along the length direction of the chute 102;
the reciprocating frame 3 is connected with the lower base 2 through a guide distance limiting bolt 303 penetrating through the guide distance limiting through hole 101 by bolts, so that the lower base 2 drives the reciprocating frame 3 to linearly move along the length direction of the sliding groove 102, and the length of the guide distance limiting through hole 101 is larger than the outer diameter of a screw rod of the guide distance limiting bolt 303;
the compression spring support seat 401 is arranged on the upper surface of the upper base 1, one end of the compression spring support rod 402 is fixed in a through hole on the compression spring support seat 401, the other end of the compression spring support rod 402 is in sliding connection with the through hole on the compression spring compression rod 404, the sleeve 405 is arranged on the compression spring support rod 402 through a bolt connecting sleeve for adjusting the position of the sleeve 405 on the compression spring support rod 402, the compression spring compression rod 404 is in transmission connection with the reciprocating frame 3 for driving the compression spring compression rod 404 to linearly move along the length direction of the sliding groove 102 by the reciprocating frame 3, the compression spring 403 is sleeved on the compression spring support rod 402, one end of the compression spring 403 abuts against the compression spring compression rod 404, and the other end of the compression spring 403 abuts against the sleeve 405 for pushing the compression spring compression rod 404 to return;
the storage box 501 is rotatably arranged in a buckling opening on the upper base 1 through buckling connection, at least two extrusion openings 505 are formed in the lower bottom surface of the storage box 501, the compression cover 502 is arranged in the storage box 501, and the compression cover 502 is in sealing sliding connection with the inner wall surface of the storage box 501;
the bottom end of the driving hook 504 is in transmission connection with the reciprocating frame 3, the top end of the driving hook 504 is in pin shaft connection with one end of the pressing cover guide rod 503, the other end of the pressing cover guide rod 503 is in pin shaft connection with the upper cover surface of the pressing cover 502, so that the pressing cover guide rod 503 drives the pressing cover 502 to reciprocate up and down in the storage box 501 in a sealing manner, and the vertical linear distance between the top end of the driving hook 504 and the plane where the upper cover surface of the pressing cover 502 is located is smaller than the length of the pressing cover guide rod 503;
the clamping assembly 6 is arranged on the lower surface of the lower base 2.
In one embodiment of the present application, the clamping assembly comprises a left clamp 601, a left bolt 602, a left clamp support 603, a right clamp 604, a right bolt 605, and a right clamp support 606;
the left chuck support seat is arranged on the lower surface of the lower base 2, a screw rod of the left bolt is fixedly penetrated in an internal threaded hole on the left chuck support seat through threaded connection, and the left chuck is connected with a free end spherical hinge of the left bolt;
the right chuck support seat is arranged on the lower surface of the lower base 2, a screw rod of the right bolt is fixedly penetrated in an internal threaded hole on the right chuck support seat through threaded connection, and the right chuck is connected with a free end spherical hinge of the right bolt;
the left and right bolts are symmetrical to each other for clamping the sample by adjusting the spacing between the left and right clamps by screwing the left and/or right bolts.
In one embodiment of the present application, the axial center lines of the left bolt and the right bolt are perpendicular to the length direction of the chute 102;
the length direction of the guiding clearance through hole 101 is parallel to the length direction of the chute 102.
In one embodiment of the present application, the reciprocating frame 3 is a planar i-shaped structure formed by one longitudinal support rod 301 and two transverse support rods 302;
the top end of the guide distance-limiting bolt 303 is connected with the transverse supporting rod 302.
In one embodiment of the present application, the compression spring compression rod 404 is bolted to the longitudinal support rod 301 in the reciprocating frame 3 for adjusting the position of the compression spring compression rod 404 on the longitudinal support rod 301.
In one embodiment of the present application, the driving hook 504 is an L-shaped structure formed by a horizontal rod and a vertical rod, and the horizontal rod and/or the vertical rod are/is a telescopic rod to adjust the uppermost position of the pressing cover 502 in the storage box 501 in an upward sealing sliding manner and the lowermost position in a downward sealing sliding manner.
In one embodiment of the present application, a handle 7 is provided on the upper surface of the upper base 1.
In the application, a plurality of guiding distance limiting through holes 101 with rectangular cross sections are formed in the upper surface of the upper base 1, the reciprocating frame 3 is connected with the lower base 2 through guiding distance limiting bolts 303 penetrating through the guiding distance limiting through holes 101 in a bolt mode, and the lower base 2 drives the reciprocating frame 3 to linearly move along the length direction of the sliding groove 102, and the length of the guiding distance limiting through holes 101 is larger than the outer diameter of a screw rod of the guiding distance limiting bolts 303; the guiding distance limiting through hole 101 and the guiding distance limiting bolt 303 are matched with each other to directly guide the moving direction of the reciprocating frame 3 and limit the moving distance of the reciprocating frame, and indirectly guide the moving direction of the lower base 2 and limit the moving distance of the reciprocating frame, so that the reciprocating frame 3 linearly moves along the length direction of the sliding groove 102 to avoid left-right swinging.
In this application, a boss 201 for matching with the chute 102 is disposed on the upper surface of the lower base 2, and the boss 201 is inserted into the chute 102 to form a sliding pair for the lower base 2 to slide linearly along the length direction of the chute 102 in a reciprocating manner; the sliding pair is used for directly guiding the moving direction of the lower base 2 and limiting the moving distance of the lower base, and indirectly guiding the moving direction of the reciprocating frame 3 and limiting the moving distance of the lower base, so that the lower base 2 slides linearly along the length direction of the sliding groove 102, and the left-right swing is avoided.
In this application, the sleeve 405 is disposed on the pressure spring support rod 402 through a bolt connecting sleeve, so as to be used for adjusting the position of the sleeve 405 on the pressure spring support rod 402, and the initial compression degree of the pressure spring 403 can be adjusted by adjusting the position of the sleeve 405 on the pressure spring support rod 402, so as to adjust the initial spring force of the pressure spring 403;
the compression spring compression rod 404 is in bolted connection with the longitudinal support rod 301 in the reciprocating frame 3, so as to be used for adjusting the position of the compression spring compression rod 404 on the longitudinal support rod 301, and the initial compression degree of the compression spring 403 can be adjusted by adjusting the position of the compression spring compression rod 404 on the longitudinal support rod 301, so that the initial spring force of the compression spring 403 can be adjusted.
In the application, the extrusion of the grinding paste is controlled by utilizing the balance principle of the friction force received by the sample and the spring force of the pressure spring 403, and the friction force received by the sample and the spring force of the pressure spring 403 are the same in unit, but the force application directions of the friction force and the spring force are not on the same straight line, so that the friction force and the spring force cannot be directly compared and large, and only the force analysis can be adopted for decomposition, and the friction force received by the sample can be decomposed to the straight line direction of the spring force and can be directly compared and large with the spring force;
the polishing requires a certain friction force, and no friction force is required, so the friction force cannot be zero, and as long as the friction force does not exceed the upper limit, the initial compression degree of the pressure spring 403 cannot be zero, namely the initial state of the pressure spring 403 cannot be a free state which is not compressed, and the initial spring force of the pressure spring 403 cannot be zero;
in this application, the polishing paste is required for normal polishing, so that the friction force balanced with the spring force of the pressure spring 403 in this application should be the friction force applied to the sample during polishing, and in the presence of the polishing paste, the friction force is the friction force between the polishing paste on the polishing disc and the sample, and in the absence of the polishing paste, the friction force is the friction force between the polishing disc and the sample;
the friction force is not constant, the friction force can be large or small, the factors influencing the friction force are many, the friction force can be certainly small when the grinding paste is more, a worker is required to press the clamping device on the polishing disc by hands during polishing, the hand strength of the worker is large, the friction force is certainly large, the hand strength is small, the friction force is certainly small, and the hand pressure (hand strength) of the worker is a main factor influencing the friction force;
the spring force of the compression spring 403 only becomes larger as the compression spring is further compressed until the friction force is balanced, namely the spring force of the compression spring 403 is larger than or equal to the initial spring force of the compression spring 403;
in this application, preferably, the sleeve 405 is provided with a guiding distance limiting rod, and the guiding distance limiting rod is downwardly inserted into the guiding distance limiting through hole 101 in the upper base 1, and the guiding distance limiting rod and the guiding distance limiting through hole 101 are mutually matched to directly guide the moving direction of the pressure spring pressing rod 404 and limit the moving distance of the pressure spring pressing rod, so that the pressure spring pressing rod 404 linearly moves along the length direction of the sliding groove 102, and the left-right swing is avoided.
In this application, the driving hook 504 is an L-shaped structure formed by a horizontal rod and a vertical rod, where the horizontal rod and/or the vertical rod is a telescopic rod to adjust the uppermost position of the pressing cover 502 in the storage box 501 in an upward sealing sliding manner and the lowermost position in a downward sealing sliding manner;
preferably, the horizontal bar in the driving hook 504 is divided into two sections, i.e., a front section bar and a rear section bar, which are connected by a hollow pipe, the front section bar is inserted into the front end of the hollow pipe to be fastened by a bolt, the rear section bar is inserted into the rear end of the hollow pipe to be fastened by a bolt, and the length of the horizontal bar is adjusted by adjusting the length of the front section bar and/or the rear section bar inserted into the hollow pipe.
The application provides a clamping device's for polishing time centre gripping sample application method:
when in use, the clamping assembly 6 is used for clamping the sample;
then adjusting the initial compression degree of the compression spring 403;
then, adding the grinding paste into the stock box 501, then manually extruding the grinding paste to an extrusion port by using the pressing cover 502 so that the grinding paste is extruded immediately but not yet extruded, at the moment, manually keeping the lower surface of the pressing cover 502 and the upper liquid surface of the grinding paste in no extrusion force but close contact, and simultaneously, manually adaptively extending or shortening the length of the horizontal rod in the driving hook 504 so as to ensure that the lower surface of the pressing cover 502 positioned at the initial position at the beginning of polishing is not extruded but in close contact with the upper liquid surface of the grinding paste;
then polishing is started, a worker gradually and slowly contacts the clamping device with the polishing disk by hands, the worker increases the hand pressure, when the friction force born by the sample is decomposed and is larger than the spring force of the pressure spring 403, the lower base 2 slides, the sliding of the lower base 2 firstly drives the reciprocating frame 3 to move and then drives the driving hook 504 to move and then drives the pressing cover guide rod 503 to move and then drives the pressing cover 502 to slide downwards in a sealing manner in the storage box 501 through a series of transmission connection, and therefore grinding paste is extruded;
the operator reduces the hand pressure of the operator when looking at the actual required dosage of the extruded grinding paste, so that the friction force of the sample is decomposed at the moment and then is smaller than the spring force of the pressure spring 403 at the moment, the pressure spring 403 pushes the pressure spring compression rod 404 to return, the movement of the pressure spring compression rod 404 firstly drives the reciprocating frame 3 to move and then drives the driving hook 504 to move and then drives the compression cover guide rod 503 to move and then drives the compression cover 502 to upwards seal and slide in the storage box 501 through a series of transmission connection, and the extrusion of the grinding paste is stopped;
when the eye looks at the previously extruded paste is not used, the worker needs to use a greater hand pressure than the previous time, so that the pressing cover 502 is sealed and slid down again in the magazine 501 to a position lower than the previous time, thereby extruding the paste again which causes the upper liquid level to drop after the previous extrusion;
if the worker just touches the clamping device with the polishing disc by hand and does not exert force formally, the grinding paste is extruded, which indicates that the initial spring force setting of the pressure spring 403 is small, and the initial compression degree of the pressure spring 403 needs to be increased;
if the operator presses the clamping device on the polishing disc by hand and applies a hand pressure exceeding a normal reasonable upper limit, the grinding paste is not extruded yet, which indicates that the initial spring force of the compression spring 403 is set to be large, and the initial compression degree of the compression spring 403 needs to be reduced;
so through the hand pressure (hand strength) size of control staff, utilize the equilibrium principle of the frictional force that the sample received and the spring force of pressure spring 403 to control the timely right amount extrusion of lapping paste for there is right amount of lapping paste all from beginning to end on the polishing dish in the whole polishing process, thereby finally realized carrying out effective, stable and firm centre gripping to the sample when polishing, improved polishing precision and polishing quality.
Methods and apparatuses not described in detail in this application are all prior art, and are not described in detail.
The above description of the embodiments is only for aiding in the understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The clamping device for clamping the sample during polishing of the polishing machine is characterized by comprising an upper base, a lower base, a reciprocating frame, a pressure spring supporting seat, a pressure spring supporting rod, a pressure spring pressing rod, a sleeve, a storage box, a pressing cover guide rod, a driving hook and a clamping assembly for clamping the sample;
a plurality of guide distance limiting through holes with rectangular cross sections are formed in the upper surface of the upper base, and a chute is formed in the lower surface of the upper base;
the upper surface of the lower base is provided with a boss matched with the chute, and the boss is inserted into the chute to form a sliding pair for the lower base to slide linearly in a reciprocating manner along the length direction of the chute;
the reciprocating frame is connected with the lower base through a guide distance limiting bolt penetrating through the guide distance limiting through hole and is used for driving the lower base to move linearly along the length direction of the sliding groove, and the length of the guide distance limiting through hole is larger than the outer diameter of a screw rod of the guide distance limiting bolt;
the compression spring supporting seat is arranged on the upper surface of the upper base, one end of the compression spring supporting rod is fixed in a through hole on the compression spring supporting seat, the other end of the compression spring supporting rod is in sliding connection with the through hole on the compression spring pressing rod, the sleeve is arranged on the compression spring supporting rod through a bolt connecting sleeve for adjusting the position of the sleeve on the compression spring supporting rod, the compression spring pressing rod is in transmission connection with the reciprocating frame for the reciprocating frame to drive the compression spring pressing rod to linearly move along the length direction of the sliding groove, the compression spring is sleeved on the compression spring supporting rod,
one end of the pressure spring abuts against the pressure spring compression rod, and the other end of the pressure spring abuts against the sleeve so as to push the pressure spring compression rod to return;
the storage box is rotatably arranged in a buckling opening on the upper base through buckling connection, at least two extrusion openings are formed in the lower bottom surface of the storage box, the compression cover is arranged in the storage box, and the compression cover is in sealing sliding connection with the inner wall surface of the storage box;
the bottom end of the driving hook is in transmission connection with the reciprocating frame, the top end of the driving hook is in pin shaft connection with one end of the pressing cover guide rod, the other end of the pressing cover guide rod is in pin shaft connection with the upper cover surface of the pressing cover, the pressing cover guide rod is used for driving the pressing cover to reciprocate up and down in the storage box in a sealing manner, and the vertical straight line distance between the top end of the driving hook and the plane of the upper cover surface of the pressing cover is smaller than the length of the pressing cover guide rod;
the clamping component is arranged on the lower surface of the lower base;
the reciprocating frame is of a planar I-shaped structure formed by a longitudinal supporting rod and two transverse supporting rods; the top end of the guide distance-limiting bolt is connected with the transverse supporting rod;
the driving hook is of an L-shaped structure formed by a horizontal rod and a vertical rod, and the horizontal rod and/or the vertical rod is/are a telescopic rod so as to adjust the uppermost position of the pressing cover in the storage box in an upward sealing sliding manner and the lowermost position in a downward sealing sliding manner.
2. The clamping device of claim 1, wherein the clamping assembly comprises a left clamp, a left bolt, a left clamp support, a right clamp, a right bolt, and a right clamp support; the left chuck support seat is arranged on the lower surface of the lower base, a screw rod of the left bolt is fixedly penetrated in an internal threaded hole on the left chuck support seat through threaded connection, and the left chuck is connected with a free end spherical hinge of the left bolt;
the right chuck support seat is arranged on the lower surface of the lower base, a screw rod of the right bolt is fixedly penetrated in an internal threaded hole on the right chuck support seat through threaded connection, and the right chuck is connected with a free end spherical hinge of the right bolt;
the left and right bolts are symmetrical to each other for clamping the sample by adjusting the spacing between the left and right clamps by screwing the left and/or right bolts.
3. The clamping device as claimed in claim 2, wherein the axial center lines of the left and right bolts are perpendicular to the length direction of the chute;
the length direction of the guide distance limiting through hole is parallel to the length direction of the sliding groove.
4. Clamping device according to claim 1, characterized in that the compression spring compression bar is bolted to a longitudinal support bar in the reciprocating frame for adjusting the position of the compression spring compression bar on the longitudinal support bar.
5. The clamping device as recited in claim 1, characterised in that a handle is provided on an upper surface of the upper base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181749.9A CN108436763B (en) | 2018-03-06 | 2018-03-06 | Clamping device for clamping sample during polishing of polishing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181749.9A CN108436763B (en) | 2018-03-06 | 2018-03-06 | Clamping device for clamping sample during polishing of polishing machine |
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| CN108436763A CN108436763A (en) | 2018-08-24 |
| CN108436763B true CN108436763B (en) | 2023-04-25 |
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| CN201810181749.9A Active CN108436763B (en) | 2018-03-06 | 2018-03-06 | Clamping device for clamping sample during polishing of polishing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109176301B (en) * | 2018-10-12 | 2023-09-15 | 济南大学 | Automatic grinding device for test piece |
| CN110091248B (en) * | 2019-04-30 | 2023-12-19 | 陕西理工大学 | Automatic grinding and polishing device and environment-friendly grinding method for multifunctional metallographic experimental part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707187A (en) * | 2013-12-18 | 2014-04-09 | 济南大学 | Sample clamping device for polishing machines |
| JP2016203339A (en) * | 2015-04-27 | 2016-12-08 | 西部自動機器株式会社 | Work holding device and super-finishing device |
| CN206066228U (en) * | 2016-10-18 | 2017-04-05 | 济南大学 | A kind of hand-held sample polishing clamp |
| CN106826557A (en) * | 2017-03-13 | 2017-06-13 | 赵子宁 | A kind of polishing machine sample holding device |
-
2018
- 2018-03-06 CN CN201810181749.9A patent/CN108436763B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707187A (en) * | 2013-12-18 | 2014-04-09 | 济南大学 | Sample clamping device for polishing machines |
| JP2016203339A (en) * | 2015-04-27 | 2016-12-08 | 西部自動機器株式会社 | Work holding device and super-finishing device |
| CN206066228U (en) * | 2016-10-18 | 2017-04-05 | 济南大学 | A kind of hand-held sample polishing clamp |
| CN106826557A (en) * | 2017-03-13 | 2017-06-13 | 赵子宁 | A kind of polishing machine sample holding device |
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