CN111774992A - Safety protection device for numerically controlled grinder - Google Patents

Safety protection device for numerically controlled grinder Download PDF

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Publication number
CN111774992A
CN111774992A CN202010713561.1A CN202010713561A CN111774992A CN 111774992 A CN111774992 A CN 111774992A CN 202010713561 A CN202010713561 A CN 202010713561A CN 111774992 A CN111774992 A CN 111774992A
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CN
China
Prior art keywords
hole
wall
protection device
close
fixedly mounted
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Pending
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CN202010713561.1A
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Chinese (zh)
Inventor
陈习
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Individual
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Individual
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Priority to CN202010713561.1A priority Critical patent/CN111774992A/en
Publication of CN111774992A publication Critical patent/CN111774992A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/04Headstocks; Working-spindles; Features relating thereto
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/22Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety 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
    • B24B55/04Protective covers for the grinding wheel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety 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
    • B24B55/06Dust extraction equipment on grinding or polishing machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety 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
    • B24B55/12Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like

Abstract

The invention belongs to the technical field of safety protection of numerical control grinding machines, and particularly relates to a safety protection device for a numerical control grinding machine, which comprises a rack, wherein a support frame is fixedly arranged at the top of the rack, a motor is fixedly arranged on one side of the support frame, a grinding wheel is fixedly arranged on an output shaft of the motor, two connecting rods are fixedly arranged on one side of the support frame close to the grinding wheel, the same protection cover is fixedly arranged on one side of the two connecting rods close to each other, a through hole is formed in the inner wall of one side of the protection cover close to the support frame, the output shaft of the motor penetrates through the through hole and is rotatably connected with the inner wall of the through hole, the grinding wheel is positioned in the protection cover, first mounting holes are formed in the inner walls of the. The invention can effectively avoid the situation that the fragments of the workpiece fly transversely when the grinding machine works, thereby not only ensuring the safety of operators, but also ensuring the cleanness of the operating environment.

Description

Safety protection device for numerically controlled grinder
Technical Field
The invention relates to the technical field of safety protection of numerically controlled grinders, in particular to a safety protection device for a numerically controlled grinder.
Background
A numerically controlled grinder is a machine tool for grinding a surface of a workpiece by using a grinding tool through a numerical control technique, and most grinders perform grinding using a grinding wheel rotating at a high speed, and a few grinders perform grinding using a free abrasive such as oilstone and an abrasive belt, such as a honing machine, a super-finishing machine, a belt grinder, a polishing machine, and the like. The numerical control grinding machine is also a numerical control surface grinding machine, a numerical control centerless grinding machine, a numerical control internal and external grinding machine, a numerical control vertical universal grinding machine, a numerical control coordinate grinding machine, a numerical control forming grinding machine and the like, the grinding machine utilizes a grinding tool to grind the surface of a workpiece, at present, most grinding machines use a grinding wheel rotating at a high speed to grind, a large amount of fragments can appear when the workpiece is processed, the fragments splash everywhere under the condition without protection, and therefore a large amount of splashed objects can be generated in the working process to hurt workers.
However, most of the existing grinding machines are not provided with a protection device, so that the safety of operators of the grinding machines cannot be guaranteed, and people can be injured by splashing of scrap iron and the like in the machining process.
Therefore, we propose a safety guard for a numerically controlled grinding machine to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a safety protection device for a numerically controlled grinding machine.
In order to achieve the purpose, the invention adopts the following technical scheme: a safety protection device for a numerical control grinding machine comprises a rack, wherein a support frame is fixedly arranged at the top of the rack, a motor is fixedly arranged at one side of the support frame, a grinding wheel is fixedly arranged on an output shaft of the motor, two connecting rods are fixedly arranged at one side of the support frame close to the grinding wheel, the same protective cover is fixedly arranged at one side of the two connecting rods close to each other, a through hole is formed in the inner wall of one side of the protective cover close to the support frame, the output shaft of the motor penetrates through the through hole and is rotatably connected with the inner wall of the through hole, the grinding wheel is positioned in the protective cover, first mounting holes are formed in the inner walls of the two sides of the protective cover, first guide pipes are fixedly arranged in the two first mounting holes, a second mounting hole is formed in the inner wall of the top of the protective cover, a second guide pipe is fixedly arranged in the second, one end fixed mounting that the protection casing was kept away from to the second pipe has negative-pressure air fan, negative-pressure air fan keeps away from the one end of second pipe and is connected with the ash storage box.
Preferably, the fixed cover is equipped with first annular piece on the safety cover, the bottom fixed mounting of first annular piece has first bellows and second bellows, the bottom fixed mounting of first bellows and second bellows has same second annular piece, one side fixed mounting that first annular piece and second annular piece are close to each other has a plurality of flexible posts, and a plurality of flexible posts all are located between first bellows and the second bellows.
Preferably, flexible post includes the circle case, the bottom of circle case and the top fixed connection of second annular piece, the slide opening has been seted up on the top inner wall of circle case, slidable mounting has the cylinder in the slide opening, the cylindrical top extend to the slide opening outer and with the bottom fixed connection of first annular piece, the cylindrical bottom extends to circle incasement and fixed mounting has the plectane, the inner wall sliding connection of plectane and circle case, fixed mounting has the spring on the bottom inner wall of circle case, the top of spring and the bottom fixed connection of plectane.
Preferably, the top of ash storage box is equipped with the case lid, fixed mounting has the ash discharge pipe on one side inner wall that the ash storage box is close to negative pressure positive-pressure negative-pressure positive-.
Preferably, the funnel is fixedly installed at one end, close to each other, of each of the two first guide pipes and the second guide pipe, and the two first guide pipes and the two second guide pipes are communicated through the four-way joint.
Preferably, the sealing rings are fixedly mounted in the two first mounting holes and the second mounting hole, and the two first guide pipes and the second guide pipes are fixedly connected with the inner walls of the corresponding sealing rings respectively.
Preferably, the balls are nested on the two sides of the circular plate, and the balls are respectively connected with the inner walls of the two sides of the round box in a rolling manner.
Preferably, the ash storage box is provided with a fixing hole on the inner wall of one side far away from the rectangular hole, and the ash discharge pipe penetrates through the fixing hole and is fixedly connected with the inner wall of the fixing hole.
Preferably, the negative pressure fan is provided with an air inlet and an air outlet, and one end of the ash discharge pipe, which is close to the second conduit, is respectively communicated with the air outlet and the air inlet of the negative pressure fan.
Compared with the prior art, the invention has the beneficial effects that: an external power supply and a switch are connected to one side of the rack, wherein the negative pressure fan, the external power supply and the switch are sequentially connected through a lead to form a loop, when a workpiece on the rack is polished by the polishing wheel, the negative pressure fan is started through the switch, under the action of the negative pressure fan, all workpiece scraps in the protective cover can be absorbed into the second guide pipe through the three hoppers by the two first guide pipes and the second guide pipe, the workpiece scraps in the second guide pipe enter the ash storage box through the ash discharge pipe, all the workpiece scraps entering the ash storage box can be accumulated in the ash storage hopper, when the ash storage hopper is fully filled with the workpiece scraps, the ash storage hopper can be drawn out from the rectangular hole, so that the scraps in the ash storage hopper can be completely discharged, the second annular block can cling to the workpiece when the workpiece is polished by the polishing wheel, and the scraps generated by the polishing workpiece can be completely accumulated in the protective cover under the action of the second corrugated pipe, the condition that the work piece violently flies can not appear, operating personnel's safety has not only been guaranteed, operating environment's cleanness has also been guaranteed simultaneously, under the different circumstances of thickness of work piece, the second bellows will be close to toward first annular piece under the spacing of a plurality of flexible posts to make the wheel of polishing all be located second bellows and protection casing, in flexible post work, the cylinder will drive the spring shrink or the extension through the plectane, thereby realize the extension of flexible post or shorten.
The invention can effectively avoid the situation that the fragments of the workpiece fly transversely when the grinding machine works, thereby not only ensuring the safety of operators, but also ensuring the cleanness of the operating environment.
Drawings
Fig. 1 is a schematic perspective view of a safety protection device for a numerically controlled grinding machine according to the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a front sectional structural view of portion A of FIG. 1;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
FIG. 5 is an enlarged schematic view of portion C of FIG. 4;
fig. 6 is a schematic front sectional view of an ash storage box in a safety protection device for a numerically controlled grinder according to the present invention.
In the figure: 1. a rack; 2. a support frame; 3. a motor; 4. grinding the wheel; 5. a connecting rod; 6. a protective cover; 601. a first ring block; 602. a first bellows; 603. a second ring block; 604. a second bellows; 701. a first mounting hole; 702. a first conduit; 703. a second mounting hole; 704. a second conduit; 705. a negative pressure fan; 8. a telescopic column; 801. a round box; 802. a slide hole; 803. a cylinder; 804. a circular plate; 805. a spring; 901. a dust storage box; 902. a box cover; 903. an ash discharge pipe; 904. a rectangular hole; 905. a dust storage hopper; 906. a support rod.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-6, the embodiment provides a safety protection device for a numerically controlled grinder, which includes a rack 1, a support frame 2 is fixedly installed on the top of the rack 1, a motor 3 is fixedly installed on one side of the support frame 2, a grinding wheel 4 is fixedly installed on an output shaft of the motor 3, two connecting rods 5 are fixedly installed on one side of the support frame 2 close to the grinding wheel 4, the same protective cover 6 is fixedly installed on one side of the two connecting rods 5 close to each other, a through hole is formed on an inner wall of one side of the protective cover 6 close to the support frame 2, the output shaft of the motor 3 penetrates through the through hole and is rotatably connected with the inner wall of the through hole, the grinding wheel 4 is located in the protective cover 6, first installation holes 701 are formed on inner walls on two sides of the protective cover 6, first guide pipes 702 are fixedly installed in the two first installation holes 701, a, a second guide pipe 704 is fixedly installed in the second installation hole 703, one ends of the two first guide pipes 702 close to each other are both communicated with the second guide pipe 704, a negative pressure fan 705 is fixedly installed at one end of the second guide pipe 704 far away from the protective cover 6, and one end of the negative pressure fan 705 far away from the second guide pipe 704 is connected with a dust storage box 901;
the protective cover 6 is fixedly sleeved with a first annular block 601, the bottom of the first annular block 601 is fixedly provided with a first corrugated pipe 602 and a second corrugated pipe 604, the bottoms of the first corrugated pipe 602 and the second corrugated pipe 604 are fixedly provided with a same second annular block 603, one side of the first annular block 601, which is close to the second annular block 603, is fixedly provided with a plurality of telescopic columns 8, the telescopic columns 8 are all positioned between the first corrugated pipe 602 and the second corrugated pipe 604, when the thicknesses of workpieces are different, the second corrugated pipe 604 is close to the first annular block 601 under the limiting of the telescopic columns 8, the telescopic columns 8 can play a relative limiting role in the movement between the first annular block 601 and the second annular block 603, each telescopic column 8 comprises a round box 801, the bottom of the round box 801 is fixedly connected with the top of the second annular block 603, the inner wall of the top of the round box 801 is provided with a sliding hole 802, a cylinder 803 is arranged in the sliding hole 802 in a sliding manner, the top end of the cylinder 803 extends out of the sliding hole 802 and is fixedly connected with the bottom of the first annular block 601, the bottom end of the cylinder 803 extends into the round box 801 and is fixedly provided with a circular plate 804, the circular plate 804 is connected with the inner wall of the round box 801 in a sliding manner, a spring 805 is fixedly arranged on the inner wall of the bottom of the round box 801, the top end of the spring 805 is fixedly connected with the bottom of the circular plate 804, the telescopic column 8 plays a role of resetting through the spring 805, when the thicknesses of the workpieces are different, the telescopic column 8 drives the second annular block 603 to be always tightly attached to the surface of the workpiece, so that the situation that the scraps of the workpiece fly transversely is avoided, a box cover 902 is arranged at the top of the ash storage box 901, an ash discharge pipe 903 is fixedly arranged on the inner wall of the side of the ash storage box 901 close to the negative pressure fan 705, the ash discharge pipe 903 penetrates through the ash storage box 901, a dust storage hopper 905 is slidably mounted in the rectangular hole 904, six support rods 906 which are arranged in a rectangular shape are fixedly mounted at the bottom of the dust storage box 901, guide wheels are fixedly mounted at the top ends of the six support rods 906, the six guide wheels are connected with the bottom of the dust storage hopper 905 in a rolling manner, the six support rods 906 with the guide wheels can limit the position of the dust storage hopper 905 in the dust storage box 901, the box cover 902 can be used for observing the dust storage condition in the dust storage box 901, funnels are fixedly mounted at the ends, close to each other, of the two first guide pipes 702 and the second guide pipes 704, the two first guide pipes 702 and the second guide pipes 704 are communicated through a four-way joint, the three funnels enable the debris in the protective cover 6 to enter the two first guide pipes 702 and the second guide pipes 704 more easily, sealing rings are fixedly mounted in the two first mounting holes 701 and the second mounting holes 703, the two first guide pipes 702 and the second guide pipes 704 are fixedly connected with the inner walls of the corresponding sealing rings respectively, the two sides of the circular plate 804 are respectively nested with balls, the argogo balls are respectively connected with the inner walls of the two sides of the circular box 801 in a rolling manner, the inner wall of one side, away from the rectangular hole 904, of the ash storage box 901 is provided with a fixed hole, the ash discharge pipe 903 penetrates through the fixed hole and is fixedly connected with the inner wall of the fixed hole, the negative pressure fan 705 is provided with an air inlet and an air outlet, one end, close to each other, of the ash discharge pipe 903 and the second conduit 704 is respectively communicated with the air outlet and the air inlet of the negative pressure fan 705, one side of the rack 1 is connected with an external power supply and a switch, the negative pressure fan 705, the external power supply and the switch are sequentially connected through leads to form a loop, when the grinding wheel 4 grinds workpieces on the rack 1, the negative pressure fan 705 is started through the switch, and under the action of the negative pressure fan 705, the two first conduits 702 and the second conduit 704, the workpiece scraps in the second conduit 704 enter the dust storage box 901 through the dust discharge pipe 903, the workpiece scraps entering the dust storage box 901 are all accumulated in the dust storage hopper 905, when the dust storage hopper 905 is full of the workpiece scraps, the dust storage hopper 905 can be drawn out from the rectangular hole 904, so that the scraps in the dust storage hopper 905 are completely discharged, the second annular block 603 is tightly attached to the workpiece when the grinding wheel 4 grinds the workpiece, the scraps generated by grinding the workpiece are completely accumulated in the protective cover 6 under the action of the second corrugated pipe 604, the condition that the workpiece scraps transversely fly cannot occur, the safety of an operator is ensured, the cleanness of an operating environment is also ensured, when the thicknesses of the workpieces are different, the second corrugated pipe 604 approaches the first annular block 601 under the limiting of the plurality of telescopic columns 8, so that the grinding wheel 4 is completely positioned in the second corrugated pipe 604 and the protective cover 6, when the telescopic column 8 works, the cylinder 803 drives the spring 805 to contract or extend through the circular plate 804, so that the telescopic column 8 is extended or shortened
In this embodiment, an external power source and a switch are connected to one side of the rack 1, wherein the negative pressure fan 705, the external power source and the switch are sequentially connected through a wire to form a loop, when the grinding wheel 4 grinds a workpiece on the rack 1, the negative pressure fan 705 is started through the switch, under the action of the negative pressure fan 705, all workpiece debris in the protective cover 6 can be absorbed into the second conduit 704 through the three hoppers by the two first conduits 702 and the second conduit 704, the workpiece debris in the second conduit 704 enters the dust storage box 901 through the dust discharge pipe 903, all workpiece debris entering the dust storage box 901 will be accumulated in the dust storage hopper 905, and when the dust storage hopper 905 is fully filled with the workpiece debris, the dust storage hopper 905 can be drawn out from the rectangular hole 904, so as to completely discharge the debris in the dust storage hopper 905.
In the embodiment, when the grinding wheel 4 is used for grinding a workpiece, the second annular block 603 is tightly attached to the workpiece, under the action of the second corrugated pipe 604, scraps generated by grinding the workpiece are completely accumulated in the protective cover 6, and the situation that the scraps of the workpiece transversely fly does not occur, so that the safety of an operator is ensured, and the cleanness of an operating environment is also ensured, when the thicknesses of the workpieces are different, the second corrugated pipe 604 approaches the first annular block 601 under the limiting of the plurality of telescopic columns 8, so that the grinding wheel 4 is completely positioned in the second corrugated pipe 604 and the protective cover 6, and when the telescopic columns 8 work, the cylinders 803 drive the springs 805 to contract or extend through the circular plates 804, so that the extension or the shortening of the telescopic columns 8 are realized, the invention can effectively avoid the situation that the scraps of the workpiece transversely fly when the grinding machine works, thereby not only ensuring the safety of the operator, and simultaneously, the cleanness of the operating environment is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The safety protection device for the numerical control grinding machine comprises a rack (1) and is characterized in that a support frame (2) is fixedly mounted at the top of the rack (1), a motor (3) is fixedly mounted on one side of the support frame (2), a grinding wheel (4) is fixedly mounted on an output shaft of the motor (3), two connecting rods (5) are fixedly mounted on one side, close to the grinding wheel (4), of the support frame (2), one side, close to each other, of the two connecting rods (5) is fixedly mounted with a same protective cover (6), a through hole is formed in the inner wall, close to the support frame (2), of one side of the protective cover (6), the output shaft of the motor (3) penetrates through the through hole and is rotatably connected with the inner wall of the through hole, the grinding wheel (4) is located in the protective cover (6), and first mounting holes (701) are formed in the inner walls, all fixed mounting has first pipe (702) in two first mounting holes (701), second mounting hole (703) have been seted up on the top inner wall of protection casing (6), fixed mounting has second pipe (704) in second mounting hole (703), and the one end that two first pipes (702) are close to each other all is linked together with second pipe (704), the one end fixed mounting that protection casing (6) were kept away from in second pipe (704) has negative-pressure air fan (705), the one end that second pipe (704) were kept away from in negative-pressure air fan (705) is connected with ash storage box (901).
2. The safety protection device for the numerically controlled grinder according to claim 1, wherein a first annular block (601) is fixedly sleeved on the protection cover (6), a first corrugated pipe (602) and a second corrugated pipe (604) are fixedly installed at the bottom of the first annular block (601), the same second annular block (603) is fixedly installed at the bottoms of the first corrugated pipe (602) and the second corrugated pipe (604), a plurality of telescopic columns (8) are fixedly installed at one side, close to each other, of the first annular block (601) and the second annular block (603), and the plurality of telescopic columns (8) are located between the first corrugated pipe (602) and the second corrugated pipe (604).
3. The safety protection device for the numerically controlled grinder according to claim 2, wherein the telescopic column (8) comprises a round box (801), the bottom of the round box (801) is fixedly connected with the top of the second annular block (603), a sliding hole (802) is formed in the inner wall of the top of the round box (801), a cylinder (803) is slidably mounted in the sliding hole (802), the top end of the cylinder (803) extends out of the sliding hole (802) and is fixedly connected with the bottom of the first annular block (601), the bottom end of the cylinder (803) extends into the round box (801) and is fixedly mounted with a round plate (804), the round plate (804) is slidably connected with the inner wall of the round box (801), a spring (805) is fixedly mounted on the inner wall of the bottom of the round box (801), and the top end of the spring (805) is fixedly connected with the bottom of the round plate (804).
4. The safety protection device for the numerically controlled grinder according to claim 1, characterized in that a box cover (902) is arranged at the top of the ash storage box (901), an ash discharge pipe (903) is fixedly mounted on the inner wall of one side, close to the negative pressure fan (705), of the ash storage box (901), the ash discharge pipe (903) penetrates through the ash storage box (901) and is communicated with the negative pressure fan (705), a rectangular hole (904) is formed in the inner wall of one side, far away from the ash discharge pipe (903), of the ash storage box (901), an ash storage hopper (905) is slidably mounted in the rectangular hole (904), six support rods (906) which are arranged in a rectangular shape are fixedly mounted at the bottom of the ash storage box (901), guide wheels are fixedly mounted at the top ends of the six support rods (906), and the six guide wheels are in rolling connection with the bottom of the ash storage hopper (905).
5. The safety protection device for the numerically controlled grinder according to claim 1, wherein a funnel is fixedly mounted at one end, close to each other, of each of the two first guide pipes (702) and the two second guide pipes (704), and the two first guide pipes (702) and the two second guide pipes (704) are communicated through a four-way joint.
6. The safety protection device for the numerically controlled grinder according to claim 1, wherein sealing rings are fixedly mounted in the two first mounting holes (701) and the two second mounting holes (703), and the two first guide pipes (702) and the two second guide pipes (704) are fixedly connected with the inner walls of the corresponding sealing rings respectively.
7. The safety protection device for the numerically controlled grinder is characterized in that balls are nested on two sides of the circular plate (804), and the argan balls are respectively connected with the inner walls of two sides of the round box (801) in a rolling mode.
8. The safety protection device for the numerically controlled grinder as claimed in claim 4, wherein a fixing hole is formed in the inner wall of one side, away from the rectangular hole (904), of the ash storage box (901), and the ash discharge pipe (903) penetrates through the fixing hole and is fixedly connected with the inner wall of the fixing hole.
9. The safety protection device for the numerically controlled grinder as claimed in claim 4, wherein the negative pressure fan (705) is provided with an air inlet and an air outlet, and one ends of the ash discharge pipe (903) and the second conduit (704), which are close to each other, are respectively communicated with the air outlet and the air inlet of the negative pressure fan (705).
CN202010713561.1A 2020-07-23 2020-07-23 Safety protection device for numerically controlled grinder Pending CN111774992A (en)

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CN202010713561.1A CN111774992A (en) 2020-07-23 2020-07-23 Safety protection device for numerically controlled grinder

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Application Number Priority Date Filing Date Title
CN202010713561.1A CN111774992A (en) 2020-07-23 2020-07-23 Safety protection device for numerically controlled grinder

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CN112223012A (en) * 2020-11-04 2021-01-15 江苏汇鼎光学眼镜有限公司 Grinding device is used in lens processing
CN112775793A (en) * 2021-01-28 2021-05-11 河南省润领信息科技有限公司 Polishing device for environment-friendly machining
CN113021162A (en) * 2021-03-01 2021-06-25 机械工业第九设计研究院有限公司 Burnishing device is used in automobile production
CN113290903A (en) * 2021-04-20 2021-08-24 太田机械江苏有限公司 High-precision single-column hydraulic machine
CN113334197A (en) * 2021-05-27 2021-09-03 三瑞科技(江西)有限公司 Clamping device for glass insulator
CN113787425A (en) * 2021-09-02 2021-12-14 广州鼎和建材有限公司 Stone material equipment of polishing that stability is high
CN115648026A (en) * 2022-07-19 2023-01-31 中国十七冶集团有限公司 Building polishing robot

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Application publication date: 20201016