CN220561492U - Workbench for graphite processing - Google Patents

Abstract

The utility model provides a workbench for graphite processing, which comprises a bottom plate and a processing bedplate, wherein a rotating motor is arranged on the bottom plate, the output end of the rotating motor is fixedly connected with a turntable, the lower surface of the turntable is rotationally connected with the bottom plate, a buffer column is fixedly arranged between the turntable and the processing bedplate, the upper end of the turntable is fixedly provided with a first base and a second base, the first base is provided with a first spring buffer device, the second base is provided with a second spring buffer device, the output end of a first propelling cylinder is connected with a first graphite workpiece fixing device, and the output end of a second propelling cylinder is connected with a second graphite workpiece fixing device. The utility model can be convenient for fixing the graphite electrode and processing the graphite electrode, and can buffer and protect the graphite electrode workpiece in the processing process, thereby being convenient for popularization and application.

Description

Workbench for graphite processing

Technical Field

The utility model relates to the technical field of graphite processing equipment, in particular to a workbench for graphite processing.

Background

Graphite is an allotrope of carbon, is a gray black and opaque solid, has stable chemical property, is corrosion-resistant, is not easy to react with agents such as acid, alkali and the like, generates carbon dioxide by burning in oxygen, can be oxidized by strong oxidants such as concentrated nitric acid, potassium permanganate and the like, can be used as antiwear agents and lubricants, is used as neutron moderator in an atomic reactor, and can also be used for manufacturing a crucible, an electrode, an electric brush, a dry battery, graphite fibers, a heat exchanger, a cooler, an arc furnace, an arc lamp, a pencil lead and the like. Along with the continuous improvement of the quality and technical requirements of graphite electrodes in the steelmaking industry, graphite electrodes are developing to large-specification, high-precision and high-power directions. This presents a new problem for the machining of graphite electrodes. The machining of the graphite electrode comprises the procedures of locking holes, end face scraping, turning the outer circle, thread milling and the like. The thread processing of the graphite electrode is a key process of mechanical processing and is also a final processing process. Processing in graphite motors typically needs to be performed on a table.

The prior art discloses the application number: 202111192861.0, including the workstation body, the intermediate position fixed in workstation body top is equipped with the holding ring, the fixed processing platform that is equipped with in one end at holding ring top, the outer wall rotation of holding ring is equipped with the spacing ring, the top equidistance of spacing ring leaves and is equipped with a plurality of fixed slots, the outer wall of spacing ring is fixed and is equipped with the ring gear, the utility model drives the gear rotation in workstation body top through the output of the motor that is fixed in one side of the fixed slot, make gear and the ring gear meshing rotation of fixing in spacing ring outer wall, thereby be convenient for even quick location of graphite cylinder, the fixed work frame in workstation body top is convenient for the processing equipment of being driven and is processed work, the workstation body of rotation can be fast positioning clamp the graphite cylinder, the timing of benchmark location during the processing of graphite cylinder is reduced, avoid because of the precision influence that the repeated adjustment anchor clamps brought to the work piece processing, thereby improve the machining efficiency of this equipment and the machining precision of graphite. However, in the prior art, although the graphite electrode can be positioned and fixed, the graphite electrode cannot be well buffered and protected in the fixing process, so that the graphite electrode is easily damaged in the processing process. For this purpose we propose a working table for graphite processing to solve the above problems.

Disclosure of Invention

In order to solve the above-mentioned problems, the present utility model provides a working table for graphite processing, which is capable of fixing a graphite electrode conveniently, processing the graphite electrode conveniently, and buffering and protecting the graphite electrode during processing.

In order to solve the problems, the technical scheme provided by the utility model is as follows:

the utility model provides a workstation is used in graphite processing, includes bottom plate and processing platen, the lower extreme fixed mounting of bottom plate has the footing, the processing platen sets up the top of bottom plate, install rotation motor on the bottom plate, rotation motor's output and carousel fixed connection, the lower surface of carousel with the bottom plate rotates to be connected, the carousel with fixedly provided with buffer column between the processing platen, the upper end fixed mounting of carousel has first base and second base, first base sets up the left side of buffer column, the second base sets up the right side of buffer column, install first spring buffer on the first base, install second spring buffer on the second base, fixed mounting has first mounting panel and second mounting panel on the processing platen, first propulsion cylinder is installed in the left side of first mounting panel, the output of first propulsion cylinder is connected with first graphite work piece fixing device, the second propulsion cylinder is installed on the right side of second mounting panel, the output of second propulsion cylinder is connected with second graphite work piece fixing device.

Further, the buffer column comprises a buffer rubber layer, a lower T-shaped pressing column and an upper T-shaped pressing column, wherein the buffer rubber layer is fixedly installed between the lower T-shaped pressing column and the upper T-shaped pressing column, the lower T-shaped pressing column is fixedly installed at the upper end of the turntable, and the upper T-shaped pressing column is fixedly installed at the lower end of the machining platen.

Further, the first spring buffer device comprises a first damping spring, a first movable pressing plate, a first movable pressing rod and a first connecting supporting plate, a first mounting groove is formed in the first base, the first damping spring is mounted in the first mounting groove, the lower end of the first damping spring is fixedly connected with the inner wall of the first mounting groove, the upper end of the first damping spring is fixedly connected with the first movable pressing plate, the first movable pressing plate is fixedly connected with the inner wall of the first mounting groove in a sliding mode, the first movable pressing plate is fixedly connected with the first connecting supporting plate through the first movable pressing rod, the first connecting supporting plate is fixedly mounted at the lower end of the machining supporting plate, the second spring buffer device comprises a second damping spring, a second movable pressing plate and a second connecting supporting plate, a second mounting groove is formed in the second base, the lower end of the second damping spring is fixedly connected with the inner wall of the second mounting groove, the first movable pressing plate is fixedly connected with the second pressing plate, the second movable pressing plate is fixedly connected with the second pressing plate, and the second movable pressing plate is fixedly connected with the second pressing plate.

Further, the first graphite work piece fixing device comprises a first buffer box body, a first triangular clamping plate, a first buffer rubber spring, a first movable push plate and a first movable push rod, wherein the first triangular clamping plate is fixedly installed at the right upper end of the first buffer box body, the right surface of the first triangular clamping plate is aligned with the right surface of the first buffer box body, the second graphite work piece fixing device comprises a second buffer box body, a second triangular clamping plate, a second buffer rubber spring, a second movable push plate and a second movable push rod, the second triangular clamping plate is fixedly installed at the left upper end of the second buffer box body, and the left surface of the second triangular clamping plate is aligned with the left surface of the second buffer box body.

Further, the first buffer rubber spring is installed in the first buffer box, one end of the first buffer rubber spring is fixedly connected with the inner wall of the first buffer box, the other end of the first buffer rubber spring is fixedly connected with the first movable push plate, the first movable push plate is in sliding connection with the inner wall of the first buffer box left and right, the first movable push plate is fixedly connected with the output end of the first propulsion cylinder through the first movable push rod, the second buffer rubber spring is installed in the second buffer box, one end of the second buffer rubber spring is fixedly connected with the inner wall of the second buffer box, the other end of the second buffer rubber spring is fixedly connected with the second movable push plate, the second movable push plate is in sliding connection with the inner wall of the second buffer box left and right, and the second movable push plate is in sliding connection with the output end of the second propulsion cylinder through the second movable push rod.

Further, a left chute and a right chute are formed in the machining bedplate, a first sliding block is arranged at the lower end of the first buffer box body and is in sliding connection with the left chute, a second sliding block is fixedly arranged at the lower end of the second buffer box body and is in sliding connection with the right chute.

Further, the right surface of first buffering box with the right surface of first triangle splint closely laminates there is first rubber pressboard layer, the second buffering box with the left surface of second triangle splint closely laminates there is the second rubber pressboard layer.

Further, the buffer rubber layer is made of polyurethane rubber materials.

Further, the right surface of the first rubber laminated layer and the left surface of the second rubber laminated layer are uniformly provided with anti-skid stripes.

Compared with the prior art, the utility model has the following advantages:

1. the rotary table is driven to rotate by the rotary motor, so that the processing platen is driven to rotate, and further, graphite workpieces placed on the processing platen are driven to rotate, so that the graphite workpieces can be flexibly processed, and the graphite workpieces do not need to be manually rotated;

2. fixing a graphite workpiece placed on a machining platen by a first graphite workpiece fixing device and a second graphite workpiece fixing device;

3. a buffer column is fixedly arranged between the turntable and the processing platen, and comprises a buffer rubber layer, a lower T-shaped pressing column and an upper T-shaped pressing column, wherein the buffer rubber layer is made of polyurethane rubber material, and the polyurethane rubber material has the characteristics of high hardness, good strength, high elasticity, high wear resistance, tear resistance and ageing resistance, and meanwhile has the characteristics of good buffer shock absorption, can absorb 10% -20% of vibration energy, and meanwhile, the higher the vibration frequency is, the larger the energy absorption is;

4. when the machining platen is impacted, the first movable pressing plate is pushed downwards through the first movable pressing rod, the first movable pressing plate downwards compresses the first damping spring in the first mounting groove, the second movable pressing plate is pushed downwards through the second movable pressing rod, the second movable pressing plate downwards compresses the second damping spring in the second mounting groove, and the graphite machined parts placed on the machining platen are subjected to buffer protection under the elastic action of the first damping spring and the second damping spring.

In summary, the workbench for graphite processing has wide practicability, so that the problem that the graphite motor is required to be processed on the workbench in the prior art is solved, and the graphite electrode cannot be well buffered and protected in the fixing process although the graphite electrode can be conveniently positioned and fixed in the processing of the conventional workbench, so that the graphite electrode is easy to damage in the processing process, and the workbench has wide popularization value.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the graphite workpiece fixture of the present utility model;

FIG. 3 is a schematic view of the structure of the first and second spring cushioning devices of the present utility model;

FIG. 4 is a schematic view of the structure of a buffer column of the present utility model;

fig. 5 is a schematic top view of the process platen of the present utility model.

Description of main reference numerals:

1-floor, 2-foot, 3-tooling platen, 301-left runner, 302-right runner, 4-turn motor, 5-turntable, 6-first graphite work piece fixture, 601-first buffer housing, 602-first cam plate, 603-first buffer rubber spring, 604-first movable push plate, 605-first movable push rod, 606-first slide, 607-first rubber platen, 7-second graphite work piece fixture, 701-second buffer housing, 702-second cam plate, 703-second buffer rubber spring, 704-second movable push plate, 705-second movable push rod, 706-second slide, 707-second rubber platen, 8-first push cylinder, 9-second push cylinder, 10-first mounting plate, 11-second mounting plate, 12-buffer column, 1201-buffer rubber layer, 1202-lower T-press column, 1203-upper T-press column, 13-first base, 1301-first mounting groove, 14-second base, 15-second mounting groove, 705-second movable push rod, 706-second slide, 707-second rubber platen, 8-first push cylinder, 9-second push rod, 10-first mounting plate, 11-second mounting plate, 1201-second movable platen, 1201-upper T-press column, 13-first mount groove, 15-second mount groove, spring, 1501, first movable press plate, 1604, second movable platen, 1603-movable platen, damping device.

Detailed Description

The present utility model will be further described in detail with reference to the drawings and examples, which are not intended to limit the utility model, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

As shown in fig. 1-5, the embodiment of the utility model comprises a bottom plate 1 and a processing platen 3, wherein a footing 2 is fixedly arranged at the lower end of the bottom plate 1, the processing platen 3 is arranged above the bottom plate 1, a rotating motor 4 is arranged on the bottom plate 1, the output end of the rotating motor 4 is fixedly connected with a rotary table 5, the lower surface of the rotary table 5 is rotationally connected with the bottom plate 1, a graphite workpiece to be processed is placed on the processing platen 3, the rotary table 5 is driven to rotate by the rotating motor, the processing platen 3 is driven to rotate, and then the graphite workpiece placed on the processing platen 3 is driven to rotate, so that the graphite workpiece can be processed flexibly without manually rotating the graphite workpiece.

The machining platen 3 is provided with a graphite workpiece fixing device, the graphite workpiece fixing device comprises a first graphite workpiece fixing device 6 and a second graphite workpiece fixing device 7, the machining platen 3 is fixedly provided with a first mounting plate 10 and a second mounting plate 11, the left side of the first mounting plate 10 is provided with a first pushing cylinder 8, the output end of the first pushing cylinder 8 is connected with the first graphite workpiece fixing device 6, the right side of the second mounting plate 11 is provided with a second pushing cylinder 9, the output end of the second pushing cylinder 9 is connected with the second graphite workpiece fixing device 7, graphite workpieces placed on the machining platen 3 are fixed through the first graphite workpiece fixing device 6 and the second graphite workpiece fixing device 7, the first graphite workpiece fixing device 6 is pushed to apply a rightward pressure to the graphite workpieces through the first pushing cylinder 8, and similarly, the second graphite workpiece fixing device 7 is pushed to apply a leftward pressure to the graphite workpieces through the second pushing cylinder 9, and the graphite workpieces are fixed between the first graphite workpiece fixing device 6 and the second graphite workpiece fixing device 7.

The first graphite workpiece fixing device 6 comprises a first buffer tank 601, a first triangular clamping plate 602, a first buffer rubber spring 603, a first movable push plate 604 and a first movable push rod 605, the first triangular clamping plate 602 is fixedly installed at the right upper end of the first buffer tank 601, the right surface of the first triangular clamping plate 602 is aligned with the right surface of the first buffer tank 601, the right surfaces of the first buffer tank 601 and the first triangular clamping plate 602 are tightly attached with a first rubber press plate layer 607, the second graphite workpiece fixing device 7 comprises a second buffer tank 701, a second triangular clamping plate 702, a second buffer rubber spring 703, a second movable push plate 704 and a second movable push rod 705, the second triangular clamping plate 702 is fixedly installed at the left upper end of the second buffer tank 701, the left surface of the second triangular clamping plate 702 is aligned with the left surface of the second buffer tank 701, the left surfaces of the second buffer tank 702 and the second triangular clamping plate are tightly attached with a second rubber press plate layer 607, the right surfaces of the first rubber press plate 607 and the second rubber press plate layer are evenly attached with the second rubber press plate layer 607, and the second rubber press plate layer is evenly arranged on the left surface of the second buffer tank 701 and the second buffer tank 701 is more firmly provided with an anti-slip stripe 707, and the anti-slip coefficient of the anti-slip rubber workpiece is more firmly arranged on the second table plate 707, and the anti-slip friction plate is more 3 is formed.

The first buffer rubber spring 603 is installed in the first buffer box 601, one end of the first buffer rubber spring 603 is fixedly connected with the inner wall of the first buffer box 601, the other end of the first buffer rubber spring 603 is fixedly connected with the first movable push plate 604, the first movable push plate 604 is in left-right sliding connection with the inner wall of the first buffer box 601, the first movable push plate 604 is fixedly connected with the output end of the first propulsion cylinder 8 through the first movable push rod 605, the second buffer rubber spring 703 is installed in the second buffer box 701, one end of the second buffer rubber spring 703 is fixedly connected with the inner wall of the second buffer box 701, the other end of the second buffer rubber spring 703 is fixedly connected with the second movable push plate 704, the second movable push plate 704 is in left-right sliding connection with the inner wall of the second buffer box 701, and the second movable push plate 704 is fixedly connected with the output end of the second propulsion cylinder 9 through the second movable push rod 705.

The processing platen 3 is provided with a left chute 301 and a right chute 302, the lower end of the first buffer box body 601 is fixedly provided with a first sliding block 606, the first sliding block 606 is in sliding connection with the left chute 301, the lower end of the second buffer box body 701 is fixedly provided with a second sliding block 706, the second sliding block 706 is in sliding connection with the right chute 302, the first graphite workpiece fixing device 6 is pushed to move left and right on the processing platen 3 through the first pushing cylinder 8, the first sliding block 606 slides left and right in the left chute 301, the second graphite workpiece fixing device 7 is pushed to move left and right on the processing platen 3 through the second pushing cylinder 9, and the second sliding block 706 slides left and right in the right chute 302.

The buffer column 12 is fixedly arranged between the turntable 5 and the machining platen 3, the buffer column 12 comprises a buffer rubber layer 1201, a lower T-shaped pressing column 1202 and an upper T-shaped pressing column 1203, the buffer rubber layer 1201 is fixedly arranged between the lower T-shaped pressing column 1202 and the upper T-shaped pressing column 1203, the buffer rubber layer 1201 is made of polyurethane rubber materials, the polyurethane rubber materials have the characteristics of high hardness, good strength, high elasticity, high wear resistance, tear resistance and ageing resistance, meanwhile, the buffer and shock absorption performance is good, 10% -20% of vibration energy can be absorbed, meanwhile, the higher the vibration frequency is, the greater the energy absorption is, the lower T-shaped pressing column 1202 is fixedly arranged at the upper end of the turntable 5, and the upper T-shaped pressing column 1203 is fixedly arranged at the lower end of the machining platen 3.

The upper end of the turntable is fixedly provided with a first base 13 and a second base 14, the first base 13 is arranged at the left side of the buffer column 12, the second base 14 is arranged at the right side of the buffer column 12, the first base 13 is provided with a first spring buffer device 15, the second base 14 is provided with a second spring buffer device 16, the first spring buffer device 15 comprises a first damping spring 1501, a first movable pressing rod 1502, a first movable pressing rod 1503 and a first connecting supporting plate 1504, the first base 13 is provided with a first mounting groove 1301, the first damping spring 1501 is arranged in the first mounting groove 1301, the lower end of the first damping spring 1501 is fixedly connected with the inner wall of the first mounting groove 1301, the upper end of the first damping spring 1501 is fixedly connected with the first movable pressing plate 1502, the first movable pressing plate 1502 is connected with the inner wall of the first mounting groove 1301 in a sliding way up and down, the first movable pressing plate 1502 is fixedly connected with the first connecting supporting plate 1504 through the first movable pressing rod 1503, the first connecting support plate 1504 is fixedly arranged at the lower end of the processing platen 3, the second spring buffer device 16 comprises a second damping spring 1601, a second movable pressing plate 1602, a second movable pressing rod 1603 and a second connecting support plate 1604, a second mounting groove 1401 is formed in the second base 14, the second damping spring 1601 is arranged in the second mounting groove 1401, the lower end of the second damping spring 1601 is fixedly connected with the inner wall of the second mounting groove 1401, the upper end of the second damping spring 1601 is fixedly connected with the second movable pressing plate 1602, the second movable pressing plate 1602 is connected with the inner wall of the second mounting groove 1401 in a vertical sliding manner, the second movable pressing plate 1602 is fixedly connected with the second connecting support plate 1604 through a second movable pressing rod 1603, the second connecting support plate 1604 is fixedly arranged at the lower end of the processing platen 3, when the processing platen 3 is impacted, the first movable pressing plate 1502 is pushed downwards through the first movable pressing rod 1503, the first movable pressing plate 1502 compresses the first damping spring 1501 in the first mounting groove 1301 downwards, the second movable pressing plate 1602 is pushed downwards by the second movable pressing rod 1603, the second movable pressing plate 1602 compresses the second damping spring 1601 in the second mounting groove 1401 downwards, and the graphite workpiece placed on the processing platen 3 is subjected to buffer protection by the elastic force of the first damping spring 1501 and the second damping spring 1601, so that the graphite workpiece placed on the processing platen 3 can be subjected to buffer protection.

The rotating motor 4, the first propulsion cylinder 8, the second propulsion cylinder 9 and the like are all conventional devices in the art, electrical components are electrically connected with an external main controller and a power supply, and the main controller can be a conventional known device for controlling a computer and the like.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. 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 utility model. Thus, the present utility model 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 (9)

1. The utility model provides a workstation is used in graphite processing, includes bottom plate (1) and processing platen (3), the lower extreme fixed mounting of bottom plate (1) has footing (2), processing platen (3) set up the top of bottom plate (1), a serial communication port, install rotation motor (4) on bottom plate (1), the output and the carousel (5) fixed connection of rotation motor (4), the lower surface of carousel (5) with bottom plate (1) rotate to be connected, carousel (5) with be provided with buffer column (12) between processing platen (3) fixedly, the upper end fixed mounting of carousel has first base (13) and second base (14), first base (13) set up the left side of buffer column (12), second base (14) set up the right side of buffer column (12), install first spring buffer (15) on first base (13), install second spring buffer (16) on second base (14), first cylinder (8) are installed to first side and first propulsion device (8) are fixed with first propulsion device (8), the right side of the second mounting plate (11) is provided with a second propelling cylinder (9), and the output end of the second propelling cylinder (9) is connected with a second graphite workpiece fixing device (7).

2. A table for graphite working as set forth in claim 1, wherein said buffer column (12) comprises a buffer rubber layer (1201), a lower T-shaped press column (1202) and an upper T-shaped press column (1203), said buffer rubber layer (1201) being fixedly installed between said lower T-shaped press column (1202) and said upper T-shaped press column (1203), said lower T-shaped press column (1202) being fixedly installed at an upper end of said turntable (5), said upper T-shaped press column (1203) being fixedly installed at a lower end of said working platen (3).

3. The working table for graphite processing as set forth in claim 2, wherein the first spring buffer device (15) comprises a first damping spring (1501), a first movable platen (1502), a first movable compression bar (1503) and a first connection support plate (1504), a first mounting groove (1301) is formed in the first base (13), the first damping spring (1501) is mounted in the first mounting groove (1301), the lower end of the first damping spring (1501) is fixedly connected with the inner wall of the first mounting groove (1301), the upper end of the first damping spring (1501) is fixedly connected with the first movable platen (1502), the first movable platen (1502) is connected with the inner wall of the first mounting groove (1301) in an up-down sliding manner, the first movable platen (1502) is fixedly connected with the first connection groove (1504) through the first movable platen (1503), the first connection spring (1504) is fixedly mounted at the lower end of the processing groove (3), the second spring buffer device (1501) comprises a second compression bar (1606) and a second damping compression bar (1601) are mounted in the second base (1601), the second movable platen (1601) is mounted on the second movable platen (1601), the lower extreme of second damping spring (1601) with the inner wall fixed connection of second mounting groove (1401), the upper end of second damping spring (1601) with second movable clamp plate (1602) fixed connection, second movable clamp plate (1602) with the inner wall of second mounting groove (1401) sliding connection from top to bottom, second movable clamp plate (1602) pass through second movable depression bar (1603) with second connection layer board (1604) fixed connection, second connection layer board (1604) fixed mounting is in the lower extreme of processing platen (3).

4. A table for graphite working as recited in claim 3, wherein said first graphite workpiece fixing means (6) comprises a first buffer tank (601), a first triangular clamp plate (602), a first buffer rubber spring (603), a first movable push plate (604) and a first movable push rod (605), said first triangular clamp plate (602) is fixedly installed at the upper right end of said first buffer tank (601), the right surface of said first triangular clamp plate (602) is aligned with the right surface of said first buffer tank (601), said second graphite workpiece fixing means (7) comprises a second buffer tank (701), a second triangular clamp plate (702), a second buffer rubber spring (703), a second movable push plate (704) and a second movable push rod (705), said second triangular clamp plate (702) is fixedly installed at the upper left end of said second buffer tank (701), and the left surface of said second triangular clamp plate (702) is aligned with the left surface of said second buffer tank (701).

5. The working table for graphite processing as set forth in claim 4, wherein the first buffer rubber spring (603) is installed in the first buffer tank (601), one end of the first buffer rubber spring (603) is fixedly connected with an inner wall of the first buffer tank (601), the other end of the first buffer rubber spring (603) is fixedly connected with the first movable push plate (604), the first movable push plate (604) is in left-right sliding connection with the inner wall of the first buffer tank (601), the first movable push plate (604) is fixedly connected with an output end of the first pushing cylinder (8) through the first movable push rod (605), the second buffer rubber spring (703) is installed in the second buffer tank (701), one end of the second buffer rubber spring (703) is fixedly connected with the inner wall of the second buffer tank (701), the other end of the second buffer rubber spring (703) is in sliding connection with the second push plate (704), and the second push plate (704) is in sliding connection with the second push plate (704) through the second movable push plate (704), and the second push plate (704) is in sliding connection with the second push plate (9).

6. The working table for graphite processing as set forth in claim 5, wherein a left chute (301) and a right chute (302) are provided on the processing platen (3), a first slider (606) is provided at the lower end of the first buffer box (601), the first slider (606) is slidably connected with the left chute (301), a second slider (706) is fixedly provided at the lower end of the second buffer box (701), and the second slider (706) is slidably connected with the right chute (302).

7. The table for graphite working as recited in claim 6, wherein a first rubber platen layer (607) is closely attached to the right surface of said first buffer tank (601) and said first triangular clamping plate (602), and a second rubber platen layer (707) is closely attached to the left surface of said second buffer tank (701) and said second triangular clamping plate (702).

8. A table for graphite working as recited in claim 7, wherein said cushion rubber layer (1201) is made of a urethane rubber material.

9. The table for graphite working as recited in claim 8, wherein the right surface of said first rubber platen layer (607) and the left surface of said second rubber platen layer (707) are uniformly provided with anti-slip stripes.