CN112223110A - Protective structure for numerical control oblique table type dental plate grinding machine - Google Patents
Protective structure for numerical control oblique table type dental plate grinding machine Download PDFInfo
- Publication number
- CN112223110A CN112223110A CN202011271069.XA CN202011271069A CN112223110A CN 112223110 A CN112223110 A CN 112223110A CN 202011271069 A CN202011271069 A CN 202011271069A CN 112223110 A CN112223110 A CN 112223110A
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- grinding machine
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a protective structure for a numerical control inclined table type dental plate grinding machine, which comprises a protective door plate and observation glass, wherein the observation glass is embedded on the surface of the protective door plate, the protective door plate is provided with an installation mechanism and an installation block, the installation mechanism comprises a fixed plate, an electric telescopic rod and a limiting mechanism, the electric telescopic rod is positioned on the fixed plate, the limiting mechanism comprises a fixed block, a screw rod and a connecting rod, the fixed block is positioned at the bottom end of the electric telescopic rod, the screw rod is positioned on the fixed block, a connecting block is arranged in the middle of the side surface of the protective door plate, one end of the connecting rod is connected with the connecting block, the other end of the connecting rod is connected with the fixed; electric telescopic handle operation, protection door plant are driven and the vertical reciprocating motion of protection door plant, are convenient for open and shut protection door plant, and the sealing strip is closely connected with the laminating of protection door plant internal surface and protection door plant and installation piece, and is sealed inseparable between protection door plant and the grinding machine organism.
Description
Technical Field
The invention belongs to the technical field of numerical control grinding machines, and particularly relates to a protective structure for a numerical control oblique table type dental plate grinding machine.
Background
A numerically controlled grinder is a machine tool that grinds the surface of a workpiece using a grinding tool by a numerical control technique. Install gliding protection door plant on numerically control grinder's the organism, protection door plant plays the guard action, and general protection door plant slides along the horizontal direction, and protection door plant and grinder organism sliding block are connected, and the metal piece that metal parts processing produced is easily infected with to protection door plant and grinder organism junction influences the gliding smooth and easy nature of protection door plant.
The protective door plate of the existing numerical control grinding machine is connected with the grinding machine body in a sliding clamping mode, metal fragments generated by machining of metal parts are easily stained at the joint of the protective door plate and the grinding machine body, and the problem of smoothness of sliding of the protective door plate is influenced.
Disclosure of Invention
The invention aims to provide a protective structure for a numerical control inclined table type dental plate grinding machine, which aims to solve the problem that the joint of a protective door plate of the numerical control grinding machine and a grinding machine body in the background art is easy to be infected with metal chips generated by processing metal parts, so that the sliding smoothness of the protective door plate is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a numerical control is protective structure for sloping platform formula dental lamina grinding machine, includes protective door board, observation glass, it inlays and establishes on protective door board surface to observe glass, be equipped with installation mechanism, installation piece on the protective door board, installation mechanism includes fixed plate, electric telescopic handle, stop gear, electric telescopic handle is located the fixed plate, stop gear includes fixed block, screw rod, connecting rod, the fixed block is located electric telescopic handle's bottom, the screw rod is located the fixed block, the intermediate position of protective door board side surface is equipped with the connecting block, the one end and the connecting block of connecting rod are connected and the other end is connected with the fixed block, the installation piece includes two vertical portions and horizontal part, protective door board is equipped with the slide rail towards the vertical portion of installation piece on the surface, all be equipped with the sealing strip on two vertical portions.
Preferably, the fixed plate is "L" type structure, electric telescopic handle includes the body of rod and a smooth section of thick bamboo, inside smooth section of thick bamboo one end embedding body of rod tip, the one end of the electric telescopic handle body of rod closes through the screw with the fixed plate and is connected, the tip that the body of rod was kept away from to the smooth section of thick bamboo of electric telescopic handle closes through the screw with the fixed block and is connected.
Preferably, the side of fixed block has seted up the circular slot, the connecting rod is "L" type structure, the one end and the connecting block of connecting rod pass through the screw and close and be connected and the other end and circular slot cooperation.
Preferably, the end part of the connecting rod, far away from the connecting block, and the fixing block are both provided with screw holes, the screw rod is matched with the screw holes, the screw rod is connected with the fixing block in a screwing manner through threads, and the screw rod is of a T-shaped structure.
Preferably, the protection door plant is "L" type structure, the rail groove has been seted up on the surface of the vertical portion of installation piece, slide rail and rail groove cooperation, the tip surface that the protection door plant was kept away from to the slide rail is crooked ARC shape, the slide rail is located the avris position on protection door plant both sides.
Preferably, the horizontal part of the mounting block is of a U-shaped structure, rectangular grooves are formed in the surfaces of the vertical part and the horizontal part of the mounting block, the sealing strip is located in the rectangular grooves, and the sealing strip is made of a silicon rubber material.
Preferably, the avris surface that the connecting block was kept away from to the protection door plant is equipped with two steady blocks, two be equipped with the dead lever between the steady block, the outside cover of dead lever is equipped with the slip ring, be equipped with the connecting plate on the slip ring side, be equipped with the rotary column on the connecting plate, the outside of rotary column is equipped with the rotor plate, the tip of rotor plate is equipped with cleans the piece, it is equipped with to clean the piece and cleans the pad towards the surface of protection door plant.
Preferably, the connecting plate is "L" type structure, the rotary column is "T" type structure, the rotor plate rotates with the rotary column to be connected, the rotor plate is equipped with the magnet ring of annular shape towards the connecting plate on the surface, the magnet ring adsorbs with the connecting plate to be connected, clean the pad by sponge material manufacturing, when wiping piece vertical fixation pole, clean the pad and observe the laminating of glass.
Compared with the prior art, the invention has the beneficial effects that:
1. through the electric telescopic handle who sets up, the fixed block, the screw rod, the connecting rod, the installation piece, electric telescopic handle moves, the protection door plant is driven and the vertical reciprocating motion of protection door plant, be convenient for open and shut the protection door plant, the sealing strip is connected closely with the installation piece with the laminating of protection door plant internal surface and protection door plant, it is sealed inseparable between protection door plant and the grinding machine organism, the tip that the screw rod runs through the connecting rod is closed soon with the fixed block through the screw thread and is connected closely, be convenient for install and take off the connecting rod, be convenient for install, dismantle the protection door plant, be convenient for clear up the metal piece that is infected.
2. Through the piece of wiping, the pad of wiping that sets up, wipe the vertical removal of piece, wipe the pad and clean the clearance and observe the glass surface, avoid observing glass's surface because of being infected with dust impurity, produce the fog pearl and fuzzy under the low temperature, and then influence the processing of observing the grinding machine internals.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the mounting block of the present invention;
FIG. 3 is a cross-sectional structural schematic view of the mounting block of the present invention;
FIG. 4 is a schematic cross-sectional view of the fixing block of the present invention;
FIG. 5 is a schematic cross-sectional view of a rotating plate according to the present invention;
in the figure: 1. a protective door panel; 2. observing glass; 3. a fixing plate; 4. an electric telescopic rod; 5. a fixed block; 6. a screw; 7. a connecting rod; 8. connecting blocks; 9. a stabilizing block; 10. fixing the rod; 11. a slip ring; 12. a connecting plate; 13. turning the column; 14. a rotating plate; 15. a wiping block; 16. mounting blocks; 17. a sealing strip; 18. a slide rail; 19. a wiping pad; 20. a magnetic ring.
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.
Example 1
Referring to fig. 1 to 4, the present invention provides a technical solution: a protective structure for a numerical control inclined table type dental plate grinding machine comprises a protective door plate 1 and an observation glass 2, wherein the observation glass 2 is embedded on the surface of the protective door plate 1, the protective door plate 1 is provided with an installation mechanism and an installation block 16, the installation block 16 is installed on a grinding machine body, the installation mechanism comprises a fixed plate 3, an electric telescopic rod 4 and a limiting mechanism, the electric telescopic rod 4 is positioned on the fixed plate 3, the limiting mechanism comprises a fixed block 5, a screw rod 6 and a connecting rod 7, the fixed block 5 is positioned at the bottom end of the electric telescopic rod 4, the screw rod 6 is positioned on the fixed block 5, a connecting block 8 is arranged at the middle position of the side surface of the protective door plate 1, one end of the connecting rod 7 is connected with the connecting block 8, the other end of the connecting rod is connected with the fixed block 5, the installation block 16 comprises two vertical parts and a, 4 operations of electric telescopic handle, protection door plant 1 is driven and the vertical reciprocating motion of protection door plant 1, the protection door plant 1 of being convenient for open and shut, sealing strip 17 and the laminating of 1 internal surface of protection door plant, protection door plant 1 is connected closely with installation piece 16, protection door plant 1 is connected closely with the grinding machine organism, screw rod 6 runs through connecting rod 7's tip and fixed block 5 and closes soon through the screw thread and be connected closely, be convenient for install with take off connecting rod 7, be convenient for install, dismantle protection door plant 1.
In this embodiment, the fixing plate 3 is an "L" shaped structure, the electric telescopic rod 4 includes a rod body and a sliding barrel, one end of the sliding barrel is embedded inside the end portion of the rod body, one end of the rod body of the electric telescopic rod 4 is screwed with the fixing plate 3, the end portion of the sliding barrel of the electric telescopic rod 4, far away from the rod body, is screwed with the fixing block 5, the side surface of the fixing block 5 is provided with a circular groove, the connecting rod 7 is an "L" shaped structure, one end of the connecting rod 7 is screwed with the connecting block 8 and the other end is matched with the circular groove, the end portion of the connecting rod 7, far away from the connecting block 8, is provided with screw holes on the fixing block 5, the screw rod 6 is matched with the screw holes, the screw rod 6 is screwed with the fixing block 5, the screw rod 6 is a "T" shaped structure, the electric telescopic rod 4, the protective door plate 1 is convenient to open and close.
In this embodiment, protective door panel 1 is "L" type structure, the rail groove has been seted up on the surface of the vertical portion of installation piece 16, slide rail 18 and rail groove cooperation, the tip surface that protective door panel 1 was kept away from to slide rail 18 is crooked ARC shape, slide rail 18 is located the avris position on protective door panel 1 both sides, the horizontal part of installation piece 16 is "U" type structure, the rectangular channel has all been seted up on the surface of the vertical portion of installation piece 16 and horizontal part, sealing strip 17 is located the rectangular channel, sealing strip 17 is made by silicon rubber material, slide rail 18 and installation piece 16 sliding connection on the protective door panel 1, sealing strip 17 and the laminating of protective door panel 1 internal surface, protective door panel 1 is connected closely with installation piece 16.
Example 2
Referring to fig. 1 to 5, the present invention provides a technical solution: a protective structure for a numerical control inclined table type dental plate grinding machine comprises a protective door plate 1 and an observation glass 2, wherein the observation glass 2 is embedded on the surface of the protective door plate 1, the protective door plate 1 is provided with an installation mechanism and an installation block 16, the installation block 16 is installed on a grinding machine body, the installation mechanism comprises a fixed plate 3, an electric telescopic rod 4 and a limiting mechanism, the electric telescopic rod 4 is positioned on the fixed plate 3, the limiting mechanism comprises a fixed block 5, a screw rod 6 and a connecting rod 7, the fixed block 5 is positioned at the bottom end of the electric telescopic rod 4, the screw rod 6 is positioned on the fixed block 5, a connecting block 8 is arranged at the middle position of the side surface of the protective door plate 1, one end of the connecting rod 7 is connected with the connecting block 8, the other end of the connecting rod is connected with the fixed block 5, the installation block 16 comprises two vertical parts and a, the electric telescopic rod 4 runs, the protective door plate 1 is driven and the protective door plate 1 vertically reciprocates, the protective door plate 1 is convenient to open and close, a sealing strip 17 is attached to the inner surface of the protective door plate 1, the protective door plate 1 is tightly connected with an installation block 16, the protective door plate 1 is tightly connected with a grinding machine body, a screw 6 penetrates through the end part of a connecting rod 7 and is tightly connected with a fixed block 5 through screw threads in a screwing manner, the connecting rod 7 is convenient to install and take down, the protective door plate 1 is convenient to install and disassemble, two stabilizing blocks 9 are arranged on the lateral side surface of the protective door plate 1 away from a connecting block 8, a fixed rod 10 is arranged between the two stabilizing blocks 9, a sliding ring 11 is sleeved on the outer side of the fixed rod 10, a connecting plate 12 is arranged on the lateral side of the sliding ring 11, a rotary column 13 is arranged on the connecting plate 12, a rotary plate 14 is arranged, the wiping block 15 vertically moves, and the wiping pad 19 wipes and cleans the surface of the observation glass 2, so that the surface of the observation glass 2 is prevented from being contaminated by dust and impurities and generating fog beads at low temperature, and the influence on the processing of internal parts of the observation grinding machine is avoided.
In this embodiment, the fixing plate 3 is an "L" shaped structure, the electric telescopic rod 4 includes a rod body and a sliding barrel, one end of the sliding barrel is embedded inside the end portion of the rod body, one end of the rod body of the electric telescopic rod 4 is screwed with the fixing plate 3, the end portion of the sliding barrel of the electric telescopic rod 4, far away from the rod body, is screwed with the fixing block 5, the side surface of the fixing block 5 is provided with a circular groove, the connecting rod 7 is an "L" shaped structure, one end of the connecting rod 7 is screwed with the connecting block 8 and the other end is matched with the circular groove, the end portion of the connecting rod 7, far away from the connecting block 8, is provided with screw holes on the fixing block 5, the screw rod 6 is matched with the screw holes, the screw rod 6 is screwed with the fixing block 5, the screw rod 6 is a "T" shaped structure, the electric telescopic rod 4, the protective door plate 1 is convenient to open and close.
In this embodiment, protective door panel 1 is "L" type structure, the rail groove has been seted up on the surface of the vertical portion of installation piece 16, slide rail 18 and rail groove cooperation, the tip surface that protective door panel 1 was kept away from to slide rail 18 is crooked ARC shape, slide rail 18 is located the avris position on protective door panel 1 both sides, the horizontal part of installation piece 16 is "U" type structure, the rectangular channel has all been seted up on the surface of the vertical portion of installation piece 16 and horizontal part, sealing strip 17 is located the rectangular channel, sealing strip 17 is made by silicon rubber material, slide rail 18 and installation piece 16 sliding connection on the protective door panel 1, sealing strip 17 and the laminating of protective door panel 1 internal surface, protective door panel 1 is connected closely with installation piece 16.
In this embodiment, the connecting plate 12 is "L" type structure, the rotary column 13 is "T" type structure, the rotor plate 14 rotates with the rotary column 13 and is connected, the rotor plate 14 is equipped with the magnet ring 20 of annular shape on the surface towards the connecting plate 12, the magnet ring 20 adsorbs with the connecting plate 12 and is connected, it is made by sponge material to clean the pad 19, when wiping piece 15 vertical fixation pole 10, clean pad 19 and observe glass 2 laminating, wipe piece 15 vertical migration, clean pad 19 clean and observe glass 2 surface, avoid observing glass 2 surface and be infected with dust impurity, produce the fog pearl under the low temperature, influence the processing of observing the grinding machine internals.
The working principle and the using process of the invention are as follows:
when the numerical control sloping table type platen grinder is used, the grinder is connected with the installed protective door plate 1 in a sliding mode, the electric telescopic rod 4 runs, the sliding cylinder of the electric telescopic rod 4 vertically moves, the fixing block 5, the connecting rod 7 and the protective door plate 1 vertically move, the protective door plate 1 is driven and the protective door plate 1 vertically reciprocates, the protective door plate 1 is convenient to open and close, the sliding rail 18 on the protective door plate 1 is connected with the installation block 16 in a sliding mode, the sealing strip 17 is attached to the inner surface of the protective door plate 1, the protective door plate 1 is tightly connected with the installation block 16, and the protective door plate 1 is tightly connected with a;
the connecting rod 7 is embedded into the fixed block 5, the screw 6 is rotated clockwise from top to bottom, the end part of the screw 6 penetrating through the connecting rod 7 is tightly screwed and connected with the fixed block 5 through threads, the connecting rod 7 is convenient to mount and take down, and the protective door plate 1 is convenient to mount and dismount;
when wiping 15 vertical fixation poles 10 of piece, wipe pad 19 and the laminating of observation glass 2, wipe the vertical removal of piece 15, wipe pad 19 and clean the clearance and observe glass 2 surfaces, avoid observing 2 surperficial dust impurities that are infected with, produce the fog pearl under the low temperature, and then the influence is observed the processing of grinding machine internals, rotor plate 14 rotates with rotary column 13 and is connected, wipe the rotatory back vertical placement of piece 15, magnet ring 20 adsorbs with connecting plate 12 and is connected, wipe piece 15 and keep stable state, and convenient to operate and use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a numerical control is protective structure for sloping platform formula dental lamina grinding machine, includes protection door plant (1), observation glass (2), it establishes on protection door plant (1) surface, its characterized in that to observe glass (2): the protective door plate (1) is provided with an installation mechanism and an installation block (16), the installation mechanism comprises a fixed plate (3), an electric telescopic rod (4) and a limiting mechanism, the electric telescopic rod (4) is positioned on the fixed plate (3), the limiting mechanism comprises a fixed block (5), a screw rod (6) and a connecting rod (7), the fixed block (5) is positioned at the bottom end of the electric telescopic rod (4), the screw rod (6) is positioned on the fixed block (5), a connecting block (8) is arranged in the middle of the side surface of the protective door plate (1), one end of the connecting rod (7) is connected with the connecting block (8) and the other end is connected with the fixed block (5), the mounting block (16) comprises two vertical parts and a horizontal part, a slide rail (18) is arranged on the surface of the protective door panel (1) facing the vertical part of the mounting block (16), and sealing strips (17) are arranged on two vertical parts of the mounting block (16).
2. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 1, characterized in that: the fixing plate (3) is of an L-shaped structure, the electric telescopic rod (4) comprises a rod body and a sliding barrel, one end of the sliding barrel is embedded into the end part of the rod body, one end of the rod body of the electric telescopic rod (4) is connected with the fixing plate (3) through a screw in a screwing mode, and the end part, far away from the rod body, of the sliding barrel of the electric telescopic rod (4) is connected with the fixing block (5) through a screw in a screwing mode.
3. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 1, characterized in that: the round slot has been seted up to the side of fixed block (5), connecting rod (7) are "L" type structure, the one end of connecting rod (7) closes through the screw with connecting block (8) soon and is connected and the other end and round slot cooperation.
4. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 1, characterized in that: screw holes are formed in the end portion, far away from the connecting block (8), of the connecting rod (7) and the fixing block (5), the screw rod (6) is matched with the screw holes, the screw rod (6) is connected with the fixing block (5) in a threaded screwing mode, and the screw rod (6) is of a T-shaped structure.
5. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 1, characterized in that: protection door plant (1) is "L" type structure, the rail groove has been seted up on the surface of the vertical portion of installation piece (16), slide rail (18) and rail groove cooperation, the tip surface that protection door plant (1) was kept away from in slide rail (18) is crooked ARC shape, slide rail (18) are located the avris position on protection door plant (1) both sides.
6. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 1, characterized in that: the horizontal part of the mounting block (16) is of a U-shaped structure, rectangular grooves are formed in the surfaces of the vertical part and the horizontal part of the mounting block (16), the sealing strip (17) is located in the rectangular grooves, and the sealing strip (17) is made of a silicon rubber material.
7. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 1, characterized in that: the avris surface that connecting block (8) were kept away from in protective door board (1) is equipped with two firm pieces (9), two be equipped with dead lever (10) between firm piece (9), the outside cover of dead lever (10) is equipped with slip ring (11), be equipped with connecting plate (12) on slip ring (11) side, be equipped with rotary column (13) on connecting plate (12), the outside of rotary column (13) is equipped with rotor plate (14), the tip of rotor plate (14) is equipped with cleans piece (15), clean piece (15) and be equipped with towards the surface of protective door board (1) and clean pad (19).
8. The protective structure for the numerical control inclined table type dental plate grinding machine according to claim 7, characterized in that: connecting plate (12) are "L" type structure, rotary column (13) are "T" type structure, rotor plate (14) rotate with rotary column (13) and are connected, rotor plate (14) are equipped with magnet ring (20) of annular shape on the surface towards connecting plate (12), magnet ring (20) are connected with connecting plate (12) absorption, it makes by sponge material to clean pad (19), when wiping piece (15) vertical fixation pole (10), clean pad (19) and observation glass (2) laminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271069.XA CN112223110A (en) | 2020-11-13 | 2020-11-13 | Protective structure for numerical control oblique table type dental plate grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271069.XA CN112223110A (en) | 2020-11-13 | 2020-11-13 | Protective structure for numerical control oblique table type dental plate grinding machine |
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| Publication Number | Publication Date |
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| CN112223110A true CN112223110A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011271069.XA Pending CN112223110A (en) | 2020-11-13 | 2020-11-13 | Protective structure for numerical control oblique table type dental plate grinding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN112223110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112847137A (en) * | 2021-02-24 | 2021-05-28 | 南京华鑫机械刀具制造有限公司 | Tool for processing trapezoidal knife edge |
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| CN210703873U (en) * | 2019-08-23 | 2020-06-09 | 合肥市奥兰德机械科技有限公司 | Protective cover of numerical control machine tool |
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| JP2003231037A (en) * | 2002-02-06 | 2003-08-19 | Enomoto Kogyo Kk | Telescopic cover and cover piece used in the same |
| CN205497114U (en) * | 2016-04-20 | 2016-08-24 | 江苏德瑞加数控机床有限公司 | Digit control machine tool tool magazine guard shield |
| CN207900792U (en) * | 2018-01-09 | 2018-09-25 | 中山速钺智能装备有限公司 | A kind of hermetically sealed mute guide rail protection cover for machining center |
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| CN210388838U (en) * | 2019-05-25 | 2020-04-24 | 江苏腾飞数控机械有限公司 | Safety protection door for numerical control knife sharpener |
| CN210306986U (en) * | 2019-05-31 | 2020-04-14 | 温仕鑫 | Automatic safety door of numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112847137A (en) * | 2021-02-24 | 2021-05-28 | 南京华鑫机械刀具制造有限公司 | Tool for processing trapezoidal knife edge |
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Application publication date: 20210115 |
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