CN110614573A - Teaching type metallographic specimen cutting machine - Google Patents
Teaching type metallographic specimen cutting machine Download PDFInfo
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- CN110614573A CN110614573A CN201910825540.6A CN201910825540A CN110614573A CN 110614573 A CN110614573 A CN 110614573A CN 201910825540 A CN201910825540 A CN 201910825540A CN 110614573 A CN110614573 A CN 110614573A
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- feeding
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- lever
- metallographic specimen
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a teaching type metallographic specimen cutting machine which comprises a continuous feeding device, a cutting device, a cooling device, a control panel and a machine shell, wherein the machine shell consists of an upper box cover, a lower box body and a partition plate, the partition plate is fixedly connected to the inner wall of the lower box body, the upper box cover is correspondingly sleeved on the upper side of the lower box body, the continuous feeding device and the cutting device are correspondingly connected to the partition plate, and the cooling device is correspondingly connected to the lower box body. Has the advantages that: the special continuous feeding device is adopted, power is transmitted through the hand wheel and the lever, one-time clamping, continuous feeding and automatic clamping are ingeniously realized, and therefore the function of continuous cutting is realized. The student only needs to rotate the hand wheel just can cut out qualified metallographic specimen, and easy operation is swift, makes the time of sample link in whole metallographic specimen analysis experiment account for more scientific. The protective cover does not need to be opened and closed frequently, so that the leakage of cooling liquid is avoided, the operating environment is more green and clean, and the sampling process is safer.
Description
Technical Field
The invention belongs to the technical field of engineering teaching, and particularly relates to a teaching type metallographic specimen cutting machine.
Background
In the material science courses such as engineering materials of colleges and universities, metallographic specimen preparation course experiments are usually set up. Metallographic samples are materials used for metallographic analysis in metal materials science and metal properties detection, and a metallographic sample cutting machine is often used for preparing the metallographic samples. The mainstream metallographic specimen cutting machine in the market at present mainly has a clamping function and a cutting function. The clamping function is to manually fix the bar stock by means of a special chuck, a flat tongs and the like; the cutting function is to control the motor through a manual or automatic control method to drive the grinding wheel to cut.
In course experiment teaching, each student needs to independently prepare a qualified metallographic specimen. The metallographic specimen used in the teaching of colleges and universities is relatively more in quantity, and the metallographic specimen is single in material and relatively uniform in specification.
In the teaching experiment operation, the flow of using the existing metallographic cutter is complex. The previous classmate needs to open the protective cover according to a fixed flow, manually clamp the bar, close the protective cover, open the motor and the cooling pump, operate an external hand wheel to cut the bar, close the motor and the cooling system, and finally take out the bar. This experimental procedure was repeated for each subsequent classmate. The existing metallographic cutting machine has a complex operation flow, needs each student to manually clamp a bar, and frequently opens and closes a motor and a cooling system, so that a large amount of time is wasted due to an overlong waiting link in teaching, and the time of a sampling link in the whole experimental teaching accounts for an overlarge time; meanwhile, as the protective cover needs to be opened and closed continuously, the leakage of cooling liquid cannot be avoided, and the laboratory environment is polluted; in addition, the students also have certain dangerousness when clamping the bar stock.
To this end, we propose a teaching type metallographic specimen cutting machine to solve the above problems.
Disclosure of Invention
1. The invention aims to provide a novel method.
The invention provides a teaching type metallographic specimen cutting machine which ingeniously realizes one-time clamping, continuous feeding and automatic clamping, thereby realizing the function of continuous cutting.
2. The technical scheme adopted by the invention is disclosed.
The utility model provides a teaching type metallographic specimen cutting machine, includes continuous material feeding unit, cutting device, cooling device, control panel and casing, the casing comprises last case lid, lower box and baffle triplex, baffle fixed connection is under on the box inner wall, and goes up the upside that the case lid correspondence cup jointed under the box, continuous material feeding unit and cutting device correspond to be connected on the baffle, and offer breach and screw hole that are used for installing continuous material feeding unit on the baffle, cooling device corresponds to be connected in box down, fixedly connected with base in the breach of baffle upper end, continuous material feeding unit mainly comprises stock stop, clamp material mechanism and feeding mechanism triplex, stock stop includes fender material frame and striker screw, fender material frame fixed connection is in the upper end of base, and the outside of striker screw is connected with fixation nut, clamp material mechanism is by pressing from both sides the material chuck, Press from both sides material ejector sleeve, spring, hook type lever, taper sleeve, front end housing, material clamping sliding sleeve and mounting flange and constitute, fixedly connected with mounting flange on the hook type lever lateral wall, and press from both sides material ejector sleeve, spring and taper sleeve and correspond and connect between hook type lever and material clamping chuck, feeding mechanism includes pay-off sliding sleeve, pay-off ejector sleeve, pay-off chuck and other transmission part, cutting device is including installing the slip table in the baffle upper end, the upper end fixedly connected with motor of slip table, the fixed grinding wheel piece that has cup jointed in the drive shaft outside of motor, the inside lead screw that is equipped with of slip table, and the end-to-end connection of lead screw has the cutting hand wheel, cooling device corresponds and connects in the lower box.
In the above teaching type metallographic specimen cutting machine, the control panel includes emergency stop button, light control button, motor start-stop control button and coolant control button.
In foretell teaching type metallographic specimen cutting machine, it is connected with the pay-off hand wheel to rotate on the curb plate of box down, the epaxial worm that is connected with of wheel of pay-off hand wheel, and the outside meshing of worm has the worm wheel rather than being connected, the epaxial pivot that is connected with of worm wheel, the transmission part is still including pressing from both sides material cam and pay-off cam, the one end of pivot is connected with presss from both sides the material cam, the casing internal rotation is connected with the pay-off cam relative with pressing from both sides the material cam, it is connected with pressing from both sides material lever and pay-off lever to rotate on the lateral wall of pressing from both sides material cam and pay-off cam respectively, press from both sides the material lever and keep away from pressing from the material cam.
In foretell teaching type metallographic specimen cutting machine, two hook type lever for the round pin hub connection on mounting flange, press from both sides the material sliding sleeve and cup joint on mounting flange, and mounting flange and base fixed connection, press from both sides the material lever and press from both sides the material sliding sleeve and rotate and be connected, and the pay-off lever rotates with the pay-off sliding sleeve and is connected.
In foretell teaching type metallographic specimen cutting machine, the pay-off sliding sleeve cup joints the outside at the pay-off ejector sleeve, can peg graft in the pay-off ejector sleeve and have the bar, and the one end that the pay-off ejector sleeve was kept away from to the bar extends to and keeps off the contact of screw.
In foretell teaching type metallographic specimen cutting machine, the upper end of baffle is connected with drive mechanism, drive mechanism's output is connected with the transmission shaft, and the transmission shaft keeps away from power unit's one end and is connected with the pay-off cam, pass through clutch transmission moment of torsion between pay-off cam and the clamp material cam, the clutch is through round pin axle and pivot fixed coupling, and the left end of pay-off cam and the right-hand member of clamp material cam respectively are connected with a lock nut.
In foretell teaching type metallographic specimen cutting machine, cooling device includes the coolant liquid collecting box of fixed connection on the internal diapire of nowel, the upper end fixedly connected with of coolant liquid collecting box rather than the small-size charge pump of intercommunication, the output of small-size charge pump is connected with the conveyer pipe, the one end that the small-size charge pump was kept away from to the conveyer pipe extends to the position that corresponds with the grinding wheel, and the output of conveyer pipe is connected with the shower nozzle.
In foretell teaching type metallographic specimen cutting machine, the coolant liquid backward flow mouth that corresponds with the shower nozzle is seted up to the upper end of baffle, and the interior fixedly connected with back flow of coolant liquid backward flow mouth, the lower extreme and the fixed intercommunication of coolant liquid collecting box of back flow, visual window is equipped with to upper cover upper end.
3. The technical effect produced by the invention.
(1) The continuous feeding device can realize the functions of one-time clamping, continuous feeding and automatic clamping, avoids frequent manual clamping, and is safe and convenient in operation process. The use of teaching type metallographic specimen cutting machine has shortened the sample time of batch sample greatly, makes the time distribution of sample preparation experiment more reasonable, has effectively promoted the effect that metallographic specimen preparation course was tested.
(2) The cutting motor does not need to be started or stopped frequently, and the waiting time of auxiliary operation is greatly shortened.
(3) The protective cover does not need to be opened and closed frequently, so that the cooling liquid is prevented from leaking, and the operating environment is green and clean.
Drawings
FIG. 1 is a schematic structural view of a continuous feeding device of a teaching type metallographic specimen cutting machine provided by the invention;
FIG. 2 is a side structure view of a feeding lever of the teaching type metallographic specimen cutting machine according to the present invention;
FIG. 3 is a side structure view of a material clamping lever of the teaching type metallographic specimen cutting machine according to the present invention;
FIG. 4 is a side structure view of a cutting device of a teaching type metallographic specimen cutting machine according to the present invention;
FIG. 5 is a schematic side structure view of a cooling device of a teaching type metallographic specimen cutting machine according to the present invention;
fig. 6 is a schematic diagram of a teaching type metallographic specimen cutting machine according to the present invention.
Description of reference numerals:
in the figure: 1 partition board, 2 material blocking frame, 3 material blocking screw, 4 fixing nut, 5 material clamping chuck, 6 material clamping push pipe, 7 spring, 8 hook type lever, 9 fixing flange, 10 feeding sliding sleeve, 11 feeding push pipe, 12 feeding chuck, 13 sliding table, 14 motor, 15 grinding wheel, 16 cutting hand wheel, 17 worm, 18 worm wheel, 19 material clamping cam, 20 feeding cam, 21 material clamping lever, 22 feeding lever, 23 material clamping sliding sleeve, 24 transmission shaft, 25 cooling liquid collecting box, 26 small electric pump, 27 conveying pipe, 28 spray head, 29 backflow pipe, 30 base, 31 conical sleeve, 32 front end cover, 33 feeding hand wheel and 34 clutch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a teaching type metallographic specimen cutting machine, including continuous material feeding unit, cutting device, cooling device, control panel and casing, the casing comprises upper tank lid, lower box and baffle 1 triplex, baffle 1 fixed connection is on box inner wall down, and the upper tank lid corresponds the upside that cup joints box down, continuous material feeding unit and cutting device correspond and connect on baffle 1, and set up breach and screw hole that are used for installing continuous material feeding unit on the baffle 1, cooling device corresponds and connects in the box down, fixedly connected with base 30 in the breach of baffle 1 upper end.
Wherein, the continuous feeding device mainly comprises a material blocking mechanism, a material clamping mechanism and a feeding mechanism, the material blocking mechanism comprises a material blocking frame 2 and a material blocking screw 3, the material blocking frame 2 is fixedly connected at the upper end of the clapboard 1, and the outer side of the material blocking screw 3 is connected with a fixing nut 4, the fixing nut 4 is used for locking and looseness prevention of the material blocking screw 3, after the sample bar is sent out by the feeding chuck 5, the bar stock is stopped by the adjusting screw in the material stopping part, the bar stock is static, the feeding chuck 5 slips on the bar stock, thereby controlling the extending length of the sample bar, rotating the material stop screw 3, adjusting the extending length of the sample bar by moving the screw left and right on the thread of the material stop bracket 2 to obtain metallographic samples with different sizes, screwing the nut, the material blocking screw 3 is not moved any more, then the material is fed every time, the extending length of the sample bar is the same every time, and the specification and the size of the metallographic sample obtained by cutting are the same.
Specifically, the clamping mechanism comprises a clamping chuck 5, a clamping push tube 6, a spring 7, a hook-shaped lever 8, a conical sleeve 31, a front end cover 32, a clamping sliding sleeve 23 and a fixed flange 9, the fixed flange 9 is fixedly connected to the side wall of the hook-shaped lever 8, the clamping push tube 6, the spring 7 and the conical sleeve 31 are correspondingly connected between the hook-shaped lever 8 and the clamping chuck 5, a feeding hand wheel 33 is rotatably connected to a side plate of the lower box body, a worm 17 is connected to a wheel shaft of the feeding hand wheel 33, a worm wheel 18 connected with the worm 17 is meshed to the outer side of the worm 17, a rotating shaft is connected to a wheel shaft of the worm wheel 18, the transmission part further comprises a clamping cam and a feeding cam, one end of the rotating shaft is connected with the clamping cam 19, a feeding cam 20 opposite to the clamping cam 19 is rotatably connected to the machine shell, the clamping lever 21 and the feeding lever 22 are respectively rotatably connected to the side walls of the clamping, the material clamping lever 21 is far away from the material clamping cam 19 and is rotatably connected with the material clamping sliding sleeve 23, the material feeding lever 22 is far away from the material feeding cam 20 and is rotatably connected with the material feeding sliding sleeve 10, the two hook-shaped levers 8 are connected with the fixed flange 9 by pin shafts, the material clamping sliding sleeve 23 is sleeved on the fixed flange 9, the fixed flange 9 is fixedly connected with the base 30, the material clamping lever 21 is rotatably connected with the material clamping sliding sleeve 23, the material feeding lever 22 is rotatably connected with the material feeding sliding sleeve 10, the material feeding sliding sleeve 10 is sleeved on the outer side of the material feeding push pipe 11, a bar can be inserted into the material feeding push pipe 11, one end of the bar, far away from the material feeding push pipe 11, extends to be connected with the material blocking screw 3, the upper end of the partition plate 1 is connected with a transmission mechanism, the output end of the transmission mechanism is connected with a transmission shaft 24, one end of the transmission shaft 24, far, the clutch 34 is fixedly connected with the rotating shaft through a pin shaft, the left end of the feeding cam 20 and the right end of the clamping cam 19 are respectively provided with a locking nut for axially fixing the cams, and the middle part of the clutch 34 is provided with a cylindrical pin fixedly connected with the transmission shaft 24, so that the feeding cam 20 and the clamping cam 19 can be conveniently adjusted synchronously.
When material clamping is carried out, the feeding hand wheel 33 is rotated, the worm wheel 18 and the worm 17 transmit the power of the feeding hand wheel to the material clamping cam 19 on the transmission shaft 24, the material clamping lever 21 drives the upper material clamping sliding sleeve 10 to move right when the material clamping cam 19 enters the chute, the two hook-shaped levers 8 pop out, the conical sleeve 31 and the material clamping push pipe 6 move left under the pushing of the spring 7, and the material clamping chuck 5 is loosened. When the clamping cam 19 enters the other chute, the clamping sliding sleeve 23 moves left to press the hook-shaped lever 8 towards the axis direction, the hook-shaped lever 8 pushes the clamping push tube 6 and the conical sleeve 31 rightwards, the spring 7 is compressed, the clamping chuck 5 is extruded by the clamping push tube 6 to clamp a sample bar, and the front end cover 32 is used for propping against the clamping chuck 5.
More specifically, the feeding mechanism comprises a feeding sliding sleeve 10, a feeding push pipe 11, a feeding chuck 12 and other transmission parts, and when the sample bar is clamped and the clamping part is still, the sample bar is still. The feeding hand wheel 33 is rotated to push the feeding sliding sleeve 10 to move leftwards. Since the clamping jaw 5 now clamps the bar and the clamping force of the feed jaw 12 is less than the clamping force of the clamping jaw 5, the feed jaw 12 slips on the bar and moves to the far left. When the material clamping chuck 5 is loosened, the feeding chuck 12 pushes the sample bar stock rightward by means of friction force until the bar stock is stopped by the stock stop mechanism, and at the moment, the feeding chuck 12 starts to slip until feeding is finished.
The feeding action of the continuous feeding mechanism can be regarded as a cycle of four actions:
1. the material clamping chuck 5 clamps the bar stock, and the cutting mechanism finishes cutting. After the cutting is completed, the material clamping sliding sleeve 23 is static. The feeding sliding sleeve 10 moves leftwards, and the feeding push pipe 11 drives the feeding chuck 12 to return. Since the material clamping chuck 5 is in a clamping state and the friction force is larger than the friction force between the feeding chuck and the bar, the bar is still, and the feeding chuck 12 slides on the bar and returns.
2. After the feeding sliding sleeve 10 is static, the feeding push pipe 11 stops moving, the material clamping sliding sleeve 23 moves rightwards, the hook-shaped lever 8 is lifted, the material clamping chuck 5 is loosened under the action of the spring 7, and the bar is released.
3. The material clamping sliding sleeve 23 is static, the feeding sliding sleeve 10 moves rightwards, and the feeding push pipe 11 drives the feeding chuck 12 and the bar to move forwards, so that feeding is carried out until the bar is blocked by the blocking mechanism.
4. The feeding sliding sleeve 10 is static, the clamping sliding sleeve 23 moves leftwards, the clamping push pipe 6 and the conical sleeve 31 are driven to extrude the clamping chuck 5, and the clamping chuck 5 clamps the bar to perform the next cutting.
Wherein, cutting device is including installing slip table 13 in baffle 1 upper end, and the upper end fixedly connected with motor 14 of slip table 13, and the fixed cover in drive shaft outside of motor 14 has connect the grinding wheel 15, and the inside lead screw that is equipped with of slip table 13, and the end-to-end connection of lead screw has cutting hand wheel 16, and rotatory cutting hand wheel 16 promotes the slip table 13 upper portion of installing motor 14 and moves back and forth on the partial guide rail of slip table lower part, realizes the manual bar stock of cutting.
Wherein, cooling device corresponds and connects in the lower box, cooling device includes coolant liquid collecting box 25 of fixed connection on the internal diapire of lower box, the upper end fixedly connected with of coolant liquid collecting box 25 rather than the small-size charge pump 26 of intercommunication, the output of small-size charge pump 26 is connected with conveyer pipe 27, the one end that small-size charge pump 26 was kept away from to conveyer pipe 27 extends to the position that corresponds with grinding wheel 15, and the output of conveyer pipe 27 is connected with shower nozzle 28, the coolant liquid backward flow mouth that corresponds with shower nozzle 28 is seted up to the upper end of baffle 1, and fixedly connected with back flow 29 in the coolant liquid backward flow mouth, the lower extreme and the fixed intercommunication of coolant liquid collecting box 25 of back flow 29, visual window is equipped.
When the cutting is performed, the cooling device is turned on by means of a control button on the housing. The small-sized electric pump 26 pumps the cooling liquid in the cooling liquid collecting tank 25, and the cooling liquid is sprayed to the cutting part through the delivery pipe 27 and the spray head 28 which are arranged on the machine shell, and after the cooling is finished, the cooling liquid returns to the cooling liquid collecting tank 25 along the liquid flow groove and the return pipe 29 on the partition board 1, so that the recycling of the cooling liquid is realized.
When the device is used, a sample bar is put into the rear end of the continuous feeding device until being blocked by the material blocking mechanism when a metallographic sample is prepared, and the feeding hand wheel 33 is rotated anticlockwise, so that the sample bar is clamped by the clamping chuck 5 of the clamping mechanism, and the cutting requirement is met. And starting the small electric pump 26 and the grinding wheel cutting machine, rotating the cutting hand wheel 16 to cut the sample bar, and returning to the original position to finish one-time cutting. And continuing rotating the feeding hand wheel anticlockwise, feeding the sample bar to the right by the feeding mechanism until the stop part stops, clamping the bar by the clamping mechanism, and starting to cut the bar for the next time.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the invention belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
Claims (8)
1. The utility model provides a teaching type metallographic specimen cutting machine, includes continuous material feeding unit, cutting device, cooling device, control panel and casing, its characterized in that, the casing comprises last case lid, lower box and baffle (1), baffle (1) fixed connection is on box inner wall down, and goes up the upside that the case lid corresponds the box of cup jointing under, continuous material feeding unit and cutting device correspond and connect on baffle (1), and set up breach and screw hole that are used for installing continuous material feeding unit on baffle (1), cooling device corresponds and connects in the box down, fixedly connected with base (30) in the breach of baffle (1) upper end, continuous material feeding unit mainly comprises stock stop mechanism, clamping mechanism and feeding mechanism triplex, stock stop mechanism includes stock stop frame (2) and stock stop screw (3), stock stop (2) fixed connection is in the upper end of base (30), and the outside of the material blocking screw (3) is connected with a fixing nut (4), the material clamping mechanism consists of a material clamping chuck (5), a material clamping push pipe (6), a spring (7), a hook-shaped lever (8), a conical sleeve (31), a front end cover (32), a material clamping sliding sleeve (23) and a fixing flange (9), the fixing flange (9) is fixedly connected on the side wall of the hook-shaped lever (8), the material clamping push pipe (6), the spring (7) and the conical sleeve (31) are correspondingly connected between the hook-shaped lever (8) and the material clamping chuck (5), the material feeding mechanism comprises a material feeding sliding sleeve (10), a material feeding push pipe (11), a material feeding chuck (12) and other transmission parts, the cutting device comprises a sliding table (13) arranged at the upper end of the partition plate (1), the upper end of the sliding table (13) is fixedly connected with a motor (14), a grinding wheel (15) is fixedly sleeved outside a driving shaft of the motor (14, the lead screw is installed in the sliding table (13), the tail end of the lead screw is connected with a cutting hand wheel (16), and the cooling device is correspondingly connected in the lower box body.
2. The teaching type metallographic specimen cutting machine according to claim 1, characterized in that: the control panel comprises an emergency stop button, a light control button, a motor start-stop control button and a cooling liquid control button.
3. The teaching type metallographic specimen cutting machine according to claim 1, characterized in that: the material conveying mechanism is characterized in that a feeding hand wheel (33) is rotatably connected to a side plate of the lower box body, a worm (17) is connected to a wheel shaft of the feeding hand wheel (33), a worm wheel (18) connected with the worm is meshed with the outer side of the worm (17), a rotating shaft is connected to the wheel shaft of the worm wheel (18), the transmission part further comprises a clamping cam and a feeding cam, one end of the rotating shaft is connected with the clamping cam (19), the feeding cam (20) opposite to the clamping cam (19) is rotatably connected to the shell, a clamping lever (21) and a feeding lever (22) are rotatably connected to the side walls of the clamping cam (19) and the feeding cam (20) respectively, the clamping lever (21) is far away from the clamping cam (19) and rotatably connected to the clamping sliding sleeve (23), and the feeding lever (22) is far away from the feeding cam (20) and rotatably connected to the feeding sliding sleeve (.
4. The teaching type metallographic specimen cutting machine according to claim 3, characterized in that: two hook type lever (8) are with round pin hub connection on mounting flange (9), press from both sides material sliding sleeve (23) and cup joint on mounting flange (9), and mounting flange (9) and base (30) fixed connection, press from both sides material lever (21) and press from both sides material sliding sleeve (23) and rotate and be connected, and pay-off lever (22) and pay-off sliding sleeve (10) rotate and be connected.
5. The teaching type metallographic specimen cutting machine according to claim 4, characterized in that: the feeding sliding sleeve (10) is sleeved on the outer side of the feeding push pipe (11), a bar can be inserted into the feeding push pipe (11), and one end, far away from the feeding push pipe (11), of the bar extends to be in contact with the material blocking screw (3).
6. The method of claim 3, wherein: the upper end of baffle (1) is connected with drive mechanism, drive mechanism's output is connected with transmission shaft (24), and transmission shaft (24) keep away from power unit's one end and be connected with pay-off cam (20), it is through clutch (34) transmission moment of torsion between pay-off cam (20) and clamp material cam (19), clutch (34) are through round pin axle and pivot fixed connection, and the left end of pay-off cam (20) and the right-hand member of clamping material cam (19) respectively are connected with a lock nut.
7. The teaching type metallographic specimen cutting machine according to claim 1, characterized in that: the cooling device comprises a cooling liquid collecting box (25) fixedly connected to the inner bottom wall of the lower box body, the upper end of the cooling liquid collecting box (25) is fixedly connected with a small electric pump (26) communicated with the cooling liquid collecting box, the output end of the small electric pump (26) is connected with a conveying pipe (27), one end, far away from the small electric pump (26), of the conveying pipe (27) extends to the position corresponding to the grinding wheel (15), and the output end of the conveying pipe (27) is connected with a spray head (28).
8. The teaching type metallographic specimen cutting machine according to claim 7, characterized in that: the upper end of the partition plate (1) is provided with a cooling liquid return port corresponding to the spray head (28), a return pipe (29) is fixedly connected in the cooling liquid return port, the lower end of the return pipe (29) is fixedly communicated with a cooling liquid collecting box (25), and the upper end of the upper box cover is provided with a visible window.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910825540.6A CN110614573B (en) | 2019-09-03 | 2019-09-03 | Teaching type metallographic specimen cutting machine |
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|---|---|---|---|
| CN201910825540.6A CN110614573B (en) | 2019-09-03 | 2019-09-03 | Teaching type metallographic specimen cutting machine |
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| CN110614573A true CN110614573A (en) | 2019-12-27 |
| CN110614573B CN110614573B (en) | 2020-07-24 |
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