CN115229557A - Convenient guard gate for digit control machine tool of dismantling - Google Patents

Convenient guard gate for digit control machine tool of dismantling Download PDF

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Publication number
CN115229557A
CN115229557A CN202211154848.0A CN202211154848A CN115229557A CN 115229557 A CN115229557 A CN 115229557A CN 202211154848 A CN202211154848 A CN 202211154848A CN 115229557 A CN115229557 A CN 115229557A
Authority
CN
China
Prior art keywords
protective door
guide rail
machine tool
control machine
door body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211154848.0A
Other languages
Chinese (zh)
Inventor
王新华
邢启坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Hangao Intelligent Equipment Co ltd
Original Assignee
Jiangsu Hangao Intelligent Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Hangao Intelligent Equipment Co ltd filed Critical Jiangsu Hangao Intelligent Equipment Co ltd
Priority to CN202211154848.0A priority Critical patent/CN115229557A/en
Publication of CN115229557A publication Critical patent/CN115229557A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08Protective coverings for parts of machine tools; Splash guards

Abstract

The invention provides a conveniently-disassembled protective door for a numerical control machine tool, which relates to the field of numerical control machine tools and comprises the following components: the left side in the main body is provided with a guide groove; an auxiliary guide rail is arranged in the guide groove in a sliding manner; a main guide rail is arranged on the right side inside the main body; the left end of the main guide rail is in abutting contact with the right end of the auxiliary guide rail; a protective door body is slidably mounted inside the main guide rail, and a protective window is arranged on the front side of the protective door body; a drawing handle is arranged at the right end of the front side of the protective door body; the inside slidable mounting of drawing the handle has the trigger block, and the rear end of trigger block is the slope column structure. According to the invention, the pressing piece is pressed when the protective door body slides, so that the protective door body can be automatically detached from the guide rail when sliding, compared with the traditional detaching mode, the protective door has the advantages of high detaching speed and low detaching difficulty, and the problems of long time consumption and high difficulty of detaching operation of the existing protective door are solved.

Description

Convenient digit control machine tool of dismantling is with guard gate
Technical Field
The invention relates to the technical field of numerical control machine tools, in particular to a conveniently-detachable protective door for a numerical control machine tool.
Background
The used guard gate of digit control machine tool also is called the floating gate, and the setting of guard gate has reduced the work piece and has appeared flying the probability that the piece wounded, has improved the security when digit control machine tool uses, but the guard gate is in daily use, and the inevitable needs are dismantled the guard gate and are changed or the maintenance.
When the existing protective door is detached, a screwdriver is mostly needed to be manually adopted to preferentially unscrew screws on the protective door, then a lock pin (limiting structure) on the protective door is opened to enable the protective door to be detached, the time consumed in two steps is long, the screwdriver is narrow in movable space and high in detachment difficulty, and the detachment work of the protective door is long in time consumption and high in difficulty due to the fact that the screws are located between the protective door and the guide rail of the protective door.
Disclosure of Invention
In view of this, the invention provides a conveniently detachable protective door for a numerical control machine, which has a selective sliding detachment structure, and the protective door can be selectively detached from a guide rail according to requirements when the protective door is opened in a sliding manner through the selective sliding detachment structure.
The invention provides a conveniently-disassembled protective door for a numerical control machine tool, which specifically comprises the following components: the left side in the main body is provided with a guide groove; an auxiliary guide rail is arranged in the guide groove in a sliding manner; a main guide rail is arranged on the right side in the main body; the left end of the main guide rail is in abutting contact with the right end of the auxiliary guide rail; a protective door body is slidably arranged inside the main guide rail, and a protective window is arranged on the front side of the protective door body; a drawing handle is arranged at the right end of the front side of the protective door body; the pull-out handle is characterized in that a trigger block is slidably mounted inside the pull-out handle, and the rear end of the trigger block is of an inclined structure.
Furthermore, a transmission shaft is rotatably arranged at the front side of the main body and is of a cylindrical structure; the inner end of the transmission shaft is provided with a gear A.
Further, a synchronizing wheel A is arranged at the top end of the transmission shaft; the inside front side of the main body is rotatably provided with a release screw rod.
Furthermore, a synchronizing wheel B is arranged at the outer end of the release screw rod; the synchronizing wheel B is connected with the synchronizing wheel A through a synchronous belt.
Furthermore, a connecting nut pair is arranged on the release screw rod through a screw thread, and the connecting nut pair is connected with the auxiliary guide rail.
Furthermore, the front end of the driving shaft is provided with an auxiliary bevel gear, and the auxiliary bevel gear is meshed and connected with the main bevel gear.
Further, a gear C is arranged at the inner end of the driven shaft; the gear C is meshed with the gear A.
Furthermore, a stress block is slidably arranged in the inner groove; the inner end of the stress block is of an inclined structure.
Furthermore, the rear side of the trigger block is provided with one end of a spring A in a central embedded mode, and the other end of the spring A is arranged on the inner side wall of the inner groove in an embedded mode.
Further, a driving shaft is rotatably arranged in the main body, and the driving shaft is of a cylindrical structure; and a gear B is arranged on the circumferential outer wall of the driving shaft.
Furthermore, a pressing piece is inserted into the front side of the drawing handle, and the rear end of the pressing piece is connected with the front side of the trigger block; an inner groove is formed in the protective door body.
Further, mounting frames are arranged on the upper side and the lower side of the protective door body; a driving rack is arranged in the mounting frame in a sliding manner; the inner side of the driving rack is connected with the outer end of the connecting plate.
Furthermore, a driven shaft is rotatably arranged on the front side of the main body and is of a cylindrical structure; the driven shaft is positioned on the right side of the transmission shaft; and a main bevel gear is arranged at the outer end of the driven shaft.
Furthermore, a connecting plate is arranged in the middle of the outer end of the stress block, and the connecting plate is of a rectangular structure; the outer side of the stress block is embedded with one end of a spring B, and the other end of the spring B is embedded and installed on the upper side wall and the lower side wall of the inner groove.
Advantageous effects
The pressing piece is pressed manually, so that the pressing piece is stressed to drive the trigger block to move backwards, the inclined surface of the trigger block pushes the inclined surface of the stressed block, the stressed block drives the connecting plate to move outwards, and the connecting plate drives the driving rack to move outwards, so that the driving rack can be positioned at a position meshed with the gear B, and the protection door body is prepared for being convenient to disassemble subsequently.
When the driving rack is positioned at the position meshed with the gear B, the protective door body slides leftwards, the driving rack is meshed with the gear B and drives the driving shaft and the auxiliary bevel gear to rotate after sliding to a certain position, the driving shaft and the auxiliary bevel gear are driven to rotate under the action of meshing with the main bevel gear, the gear C drives the transmission shaft to rotate under the action of meshing with the gear A, the relieving lead screw is driven to rotate under the action of the synchronous wheel A, the synchronous wheel B and the synchronous belt through the transmission shaft, the relieving lead screw drives the auxiliary guide rail to move up and down relatively under the matching of the connecting nut pair, the relieving lead screw is staggered with the main guide rail, the position of the protective door body is not limited by the auxiliary guide rail, and the protective door body is convenient to disassemble.
And the protective door body can slide along the main guide rail and the auxiliary guide rail to finish opening or closing work, and can be automatically detached from the guide rails when the protective door body slides only by pressing the pressing piece when the protective door body slides.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings in the following description relate to some embodiments of the invention only and are not intended to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of a protective door for a numerically controlled machine tool, which is convenient to disassemble according to an embodiment of the present invention;
FIG. 2 is a schematic view of an enlarged portion A in FIG. 1 of the protective door for a numerically controlled machine tool for easy disassembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a half-section structure of a protective door of the protective door for the numerical control machine tool, which is convenient to disassemble according to the embodiment of the invention;
FIG. 4 is a schematic structural view of an enlarged part B in FIG. 3 of the protective door for the numerically controlled machine tool for facilitating disassembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an auxiliary guide rail and a transmission shaft of a protective door for a numerically-controlled machine tool, which are convenient to disassemble according to an embodiment of the present invention;
FIG. 6 is a partial structural view of a portion C in FIG. 5 of the protective door for a numerically controlled machine tool for facilitating disassembly according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a main guide rail and a gear B of the guard door for a numerically-controlled machine tool, which is convenient to disassemble according to the embodiment of the invention;
FIG. 8 is a schematic view of the structure of the auxiliary guide rail and the driving shaft of the protective door for the numerically controlled machine tool, which is convenient to disassemble according to the embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a trigger block and a connecting plate of a protective door for a numerically-controlled machine tool, which is convenient to disassemble according to an embodiment of the invention;
fig. 10 is a schematic structural view of a pressing piece and a force-bearing block of a protective door for a numerically-controlled machine tool, which is convenient to disassemble according to an embodiment of the present invention.
List of reference numerals
1. A main body; 101. a drive shaft; 102. a gear A; 103. a driven shaft; 104. a primary bevel gear; 105. a synchronous wheel A; 106. releasing the screw rod; 107. a synchronous wheel B; 108. a connecting nut pair; 109. a drive shaft; 1010. a gear B; 1011. a secondary bevel gear; 1012. a gear C; 2. a guide groove; 3. a secondary guide rail; 4. a main guide rail; 5. a protective door body; 501. pulling the handle; 502. a trigger block; 503. a pressing member; 504. an inner tank; 505. a spring A; 506. a stress block; 507. a connecting plate; 508. a spring B; 509. installing a frame; 5010. the rack is driven.
Detailed Description
In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.
Referring to fig. 1 to 10, the present invention provides a conveniently detachable guard door for a numerical control machine, including: the left side of the inside of the main body 1 is provided with a guide groove 2; an auxiliary guide rail 3 is arranged in the guide groove 2 in a sliding manner; the right side in the main body 1 is provided with a main guide rail 4; the left end of the main guide rail 4 is in abutting contact with the right end of the auxiliary guide rail 3; a protective door body 5 is slidably mounted inside the main guide rail 4, and a protective window is arranged on the front side of the protective door body 5; a drawing handle 501 is arranged at the right end of the front side of the protective door body 5; the inside of the pulling handle 501 is slidably mounted with a trigger block 502, and the rear end of the trigger block 502 is in an inclined structure.
A finished guide rail structure is formed by the main guide rail 4 and the auxiliary guide rail 3 to ensure that the protective door body 5 can normally slide, so that the protective door body 5 can be normally used conveniently.
Wherein, the front side of the main body 1 is rotatably provided with a transmission shaft 101, and the transmission shaft 101 is of a cylindrical structure; the inner end of the transmission shaft 101 is provided with a gear A102; the front side of the main body 1 is also rotatably provided with a driven shaft 103, and the driven shaft 103 is of a cylindrical structure; the driven shaft 103 is located on the right side of the transmission shaft 101; the outer end of the driven shaft 103 is provided with a main bevel gear 104; a synchronous wheel A105 is arranged at the top end of the transmission shaft 101; a release screw 106 is rotatably mounted on the front side inside the main body 1; a synchronizing wheel B107 is arranged at the outer end of the release screw rod 106; the synchronous wheel B107 is connected with the synchronous wheel A105 through a synchronous belt; a connecting nut pair 108 is arranged on the release screw rod 106 through screw teeth, and the connecting nut pair 108 is connected with the auxiliary guide rail 3; a driving shaft 109 is rotatably installed inside the main body 1, and the driving shaft 109 is of a cylindrical structure; a gear B1010 is arranged on the circumferential outer wall of the driving shaft 109; the front end of the driving shaft 109 is provided with a secondary bevel gear 1011, and the secondary bevel gear 1011 is meshed with the main bevel gear 104; the inner end of the driven shaft 103 is provided with a gear C1012; gear C1012 is in meshing engagement with gear a 102.
The protection door body 5 is pulled leftwards manually, so that the protection door body 5 starts to slide along the main guide rail 4 under stress, the driving rack 5010 is matched with the gear B1010 to drive the driving shaft 109 and the auxiliary bevel gear 1011 to rotate after sliding to a certain position, the auxiliary bevel gear 1011 drives the driven shaft 103 and the gear C1012 to rotate under the meshing action of the main bevel gear 104, the gear C1012 drives the transmission shaft 101 to rotate under the meshing action of the gear A102, then the transmission shaft 101 can drive the release screw 106 to rotate under the connection action of the synchronizing wheel A105 and the synchronizing wheel B107 through a synchronous belt, the release screw 106 drives the auxiliary guide rail 3 to move up and down relatively under the matching action of the connecting nut pair 108, the auxiliary guide rail 3 does not abut against the front side and the rear side of the limiting protection door body 5, and the protection door body 5 can be detached at the original position of the auxiliary guide rail 3.
Wherein, the front side of the pulling handle 501 is inserted with a pressing piece 503, and the rear end of the pressing piece 503 is connected with the front side of the trigger block 502; an inner groove 504 is formed inside the protective door body 5; the central position of the rear side of the trigger block 502 is embedded with one end of a spring A505, and the other end of the spring A505 is embedded on the inner side wall of the inner groove 504; a force-bearing block 506 is slidably mounted in the inner groove 504; the inner end of the stress block 506 is of an inclined structure; a connecting plate 507 is arranged at the central position of the outer end of the stress block 506, and the connecting plate 507 is of a rectangular structure; the outer side of the force bearing block 506 is embedded with one end of a spring B508, and the other end of the spring B508 is embedded and arranged on the upper and lower side walls of the inner groove 504; the upper side and the lower side of the protective door body 5 are provided with mounting frames 509; a driving rack 5010 is slidably mounted inside the mounting frame 509; the inner side of the driving rack 5010 is connected to the outer end of the connecting plate 507.
The pressing piece 503 is pressed manually, so that the pressing piece is stressed to drive the trigger block 502 to move backwards, the inclined surface of the trigger block 502 pushes the inclined surface of the stress block 506, the stress drives the connecting plate 507 to move outwards, the connecting plate 507 drives the driving rack 5010 to move outwards, and the driving rack 5010 can be positioned at a position meshed with the gear B1010, so that when the protective door body 5 is pulled subsequently, the driving rack 5010 can be meshed with the gear B1010, the driving rack 5010 drives the driving shaft 109 to rotate under the action of meshing with the gear B1010, the disassembly work of the secondary guide rail 3 and the primary guide rail 4 is indirectly realized, and the protective door body 5 is conveniently disassembled.
In another embodiment: the front end of the pressing part 503 can be provided with a layer of rubber cushion, and the comfort of the pressing part 503 can be improved through the arrangement of the rubber cushion.
The specific use mode and function of the embodiment are as follows: when the screw rod synchronous dismounting device is used, firstly, the protective door body 5 is directly pulled manually to slide along a guide rail structure consisting of the main guide rail 4 and the auxiliary guide rail 3, so that the protective door body 5 is normally used, when the protective door body 5 needs to be dismounted, the pressing piece 503 is pressed manually by a proper finger to enable the pressing piece 503 to be stressed to drive the trigger block 502 to move backwards, the inclined surface of the trigger block 502 pushes the inclined surface of the stressed block 506, the stressed block drives the connecting plate 507 to move outwards, the connecting plate 507 drives the driving rack 5010 to move outwards, so that the driving rack 5010 can be positioned at a position meshed with the gear B1010, then, the protective door body 5 is pulled leftwards manually to enable the protective door body 5 to start to slide along the main guide rail 4 under the stress, the driving rack 5010 can be matched with the gear B1010 to drive the driving shaft 109 and the auxiliary bevel gear 1011 to rotate after sliding to a certain position, the auxiliary bevel gear 1011 drives the driven shaft 103 and the C1012 to rotate under the effect of meshing with the main bevel gear 104 to drive the driving shaft 101 and the auxiliary bevel gear 1011 to rotate, so that the driving shaft 101 and the auxiliary bevel gear 1011 to be connected with the guide rail 106 of the screw rod B3 under the guide rail, and the protective door body can be dismounted synchronously, and then the guide rail can be connected with the guide rail 3 under the guide rail 3, so that the protective door body 106 can be removed from the guide rail under the synchronous guide rail under the effect of the synchronous connection of the guide rail 3, and the synchronous lead screw rod.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims (10)

1. The utility model provides a convenient digit control machine tool of dismantling is with guard gate which characterized in that, guard gate includes: the device comprises a main body (1), wherein a guide groove (2) is formed in the left side inside the main body (1); an auxiliary guide rail (3) is slidably arranged in the guide groove (2); a main guide rail (4) is arranged on the right side in the main body (1); the left end of the main guide rail (4) is in abutting contact with the right end of the auxiliary guide rail (3); a protective door body (5) is slidably mounted inside the main guide rail (4), and a protective window is arranged on the front side of the protective door body (5); a drawing handle (501) is arranged at the right end of the front side of the protective door body (5); a trigger block (502) is installed inside the pulling handle (501) in a sliding mode, and the rear end of the trigger block (502) is of an inclined structure.
2. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 1, wherein: a transmission shaft (101) is rotatably arranged at the front side of the main body (1), and the transmission shaft (101) is of a cylindrical structure; the inner end of the transmission shaft (101) is provided with a gear A (102).
3. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 2, wherein: a driven shaft (103) is rotatably arranged on the front side of the main body (1), and the driven shaft (103) is of a cylindrical structure; the driven shaft (103) is positioned on the right side of the transmission shaft (101); the outer end of the driven shaft (103) is provided with a main bevel gear (104).
4. A conveniently disassembled protective door for a numerically controlled machine tool according to claim 3, wherein: a synchronous wheel A (105) is arranged at the top end of the transmission shaft (101); a release screw rod (106) is rotatably mounted on the front side inside the main body (1).
5. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 4, wherein: a synchronous wheel B (107) is arranged at the outer end of the release screw rod (106); the synchronizing wheel B (107) is connected with the synchronizing wheel A (105) through a synchronous belt; and the release screw rod (106) is provided with a connecting nut pair (108) through screw threads, and the connecting nut pair (108) is connected with the auxiliary guide rail (3).
6. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 5, wherein: a driving shaft (109) is rotatably arranged in the main body (1), and the driving shaft (109) is of a cylindrical structure; and a gear B (1010) is arranged on the circumferential outer wall of the driving shaft (109).
7. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 6, wherein: the front end of the driving shaft (109) is provided with an auxiliary bevel gear (1011), and the auxiliary bevel gear (1011) is meshed and connected with the main bevel gear (104); a gear C (1012) is arranged at the inner end of the driven shaft (103); the gear C (1012) is in meshing connection with the gear A (102).
8. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 1, wherein: a pressing piece (503) is inserted and installed on the front side of the drawing handle (501), and the rear end of the pressing piece (503) is connected with the front side of the trigger block (502); an inner groove (504) is formed in the protective door body (5).
9. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 8, wherein: the central position of the rear side of the trigger block (502) is embedded with one end of a spring A (505), and the other end of the spring A (505) is embedded and mounted on the inner side wall of the inner groove (504); a force-bearing block (506) is arranged in the inner groove (504) in a sliding manner; the inner end of the stress block (506) is of an inclined structure.
10. The protective door for the numerical control machine tool convenient to disassemble as claimed in claim 9, wherein: a connecting plate (507) is arranged in the middle of the outer end of the stress block (506), and the connecting plate (507) is of a rectangular structure; one end of a spring B (508) is embedded and installed at the outer side of the stress block (506), and the other end of the spring B (508) is embedded and installed on the upper side wall and the lower side wall of the inner groove (504); the upper side and the lower side of the protective door body (5) are provided with mounting frames (509); a driving rack (5010) is slidably mounted in the mounting frame (509); the inner side of the driving rack (5010) is connected with the outer end of the connecting plate (507).
CN202211154848.0A 2022-09-22 2022-09-22 Convenient guard gate for digit control machine tool of dismantling Pending CN115229557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211154848.0A CN115229557A (en) 2022-09-22 2022-09-22 Convenient guard gate for digit control machine tool of dismantling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211154848.0A CN115229557A (en) 2022-09-22 2022-09-22 Convenient guard gate for digit control machine tool of dismantling

Publications (1)

Publication Number Publication Date
CN115229557A true CN115229557A (en) 2022-10-25

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Application Number Title Priority Date Filing Date
CN202211154848.0A Pending CN115229557A (en) 2022-09-22 2022-09-22 Convenient guard gate for digit control machine tool of dismantling

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Country Link
CN (1) CN115229557A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110070945A (en) * 2009-12-19 2011-06-27 두산인프라코어 주식회사 Set-up station door apparatus for a machine tool
CN206795414U (en) * 2017-05-26 2017-12-26 无锡工艺职业技术学院 A kind of quick detachable protective door of Digit Control Machine Tool
CN209850348U (en) * 2019-04-16 2019-12-27 上海峰森机械制造有限公司 Protective structure convenient to disassemble and assemble for machine tool machining
CN112276663A (en) * 2020-09-23 2021-01-29 苏州志纳精密科技有限公司 Safety protection door for diamond cone numerical control lathe
CN214403372U (en) * 2020-11-12 2021-10-15 苏州市宏辉门窗有限公司 Screen door and window convenient to dismantle
CN216097844U (en) * 2021-08-11 2022-03-22 无锡雨众科技有限公司 Can carry out numerical control lathe of self-cleaning to door

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110070945A (en) * 2009-12-19 2011-06-27 두산인프라코어 주식회사 Set-up station door apparatus for a machine tool
CN206795414U (en) * 2017-05-26 2017-12-26 无锡工艺职业技术学院 A kind of quick detachable protective door of Digit Control Machine Tool
CN209850348U (en) * 2019-04-16 2019-12-27 上海峰森机械制造有限公司 Protective structure convenient to disassemble and assemble for machine tool machining
CN112276663A (en) * 2020-09-23 2021-01-29 苏州志纳精密科技有限公司 Safety protection door for diamond cone numerical control lathe
CN214403372U (en) * 2020-11-12 2021-10-15 苏州市宏辉门窗有限公司 Screen door and window convenient to dismantle
CN216097844U (en) * 2021-08-11 2022-03-22 无锡雨众科技有限公司 Can carry out numerical control lathe of self-cleaning to door

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Application publication date: 20221025