CN115284336A - Manipulator grating protection device - Google Patents
Manipulator grating protection device Download PDFInfo
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- CN115284336A CN115284336A CN202210873790.9A CN202210873790A CN115284336A CN 115284336 A CN115284336 A CN 115284336A CN 202210873790 A CN202210873790 A CN 202210873790A CN 115284336 A CN115284336 A CN 115284336A
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- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 5
- 101100510617 Caenorhabditis elegans sel-8 gene Proteins 0.000 description 4
- 230000001012 protector Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/06—Safety devices
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a manipulator grating protection device, which comprises a first protection mechanism, a second protection mechanism and a third protection mechanism, wherein the first protection mechanism is detachably arranged on two groups of mounting upright posts and is used for protecting gratings; wherein, two groups of mounting columns are symmetrically arranged, and grooves matched with the gratings are arranged on the mounting columns; the first protection mechanism comprises a protection cover fixedly arranged in the groove and protection plates detachably arranged on the inner sides of the two groups of installation stand columns. According to the manipulator grating protection device, the installation stand column and the protection sleeve are matched for use through the first protection mechanism, the grating in the manipulator grating protection device can be effectively protected, the protection plate and the transparent protection member are matched for use, and the grating is prevented from being collided and damaged by an external object, so that the service life of the grating is prolonged, the protection plate can be detached from the installation stand column through the matching use of the connecting piece and the first clamping piece, the manipulator grating protection device is convenient to maintain, and the applicability of the manipulator grating protection device is improved.
Description
Technical Field
The invention relates to the technical field of mechanical arm production, in particular to a mechanical arm grating protection device.
Background
A robot is an automatic manipulator that simulates some of the motion functions of a human hand and arm to grasp, transport objects or manipulate tools according to a fixed program. The robot has the characteristics that various expected operations can be completed through programming, and the advantages of the robot and the manipulator are combined in structure and performance. The manipulator is the earliest industrial robot and the earliest modern robot, can replace the heavy labor of people to realize the mechanization and automation of production, can operate in harmful environment to protect personal safety, and is widely applied to mechanical manufacturing, metallurgy, electronics, light industry, atomic energy and other departments.
An optical device comprising a large number of equally wide and equally spaced parallel slits is called a grating, which can emit light through a light emitter and receive light signals through a receiver to form a light curtain. The internal circuit processing is carried out through the on-off signal state of the light curtain, so that the actions of stopping equipment or giving out safety alarm and the like are realized.
The manipulator production line, manipulator are at the motion in-process, and is fast, and the energy is big, and pure in great potential safety hazard, for reducing the potential safety hazard, in punch press opening mould business turn over position, use chain correlation grating, replace the stand chain before, avoided the appearance that the fork truck hit the stand in the frame mould. The manipulator is at the course of the work, in case someone or object enter into work area, the punch press reports to the police immediately to stop production, take and shelter from the thing and remove the back, manual reset, the manipulator could restart work, avoided manipulator and punch press to hinder the risk of people, consequently, need a manipulator grating protector.
However, in the process of implementing the technical scheme, the inventor of the application finds that the technology at least has the following technical problems:
the existing mechanical arm grating protection device has certain disadvantages when in use, and the mechanical arm grating protection device is easily collided by foreign objects when in use, so that the grating is damaged, economic loss is caused to people, and the requirements of people cannot be met.
Therefore, a mechanical arm grating protection device is provided.
Disclosure of Invention
The invention mainly aims to provide various manipulator grating protection devices, which can effectively solve the problems in the background technology.
In order to realize the purpose, the invention adopts the technical scheme that:
a manipulator grating protection device, comprising: the first protection mechanism is detachably arranged on the two groups of mounting upright posts and used for protecting the grating; wherein, the two groups of mounting upright posts are symmetrically arranged, and grooves matched with the gratings are arranged on the mounting upright posts; first protection machanism includes the lag of fixed mounting in the recess and demountable installation at the inboard guard plate of two sets of installation stands, and the lag parcel is in the outside of grating to protect to the grating and install on protecting the plate with grating assorted transparent protection spare, make the grating report to the police the protection.
Preferably, the first protection mechanism further comprises two groups of connecting pieces fixedly mounted on the protection plate and connecting grooves formed in the mounting stand columns, a plurality of groups of first clamping pieces are fixedly mounted in the connecting grooves, and a plurality of groups of first clamping grooves clamped with the first clamping pieces are formed in the connecting pieces.
Preferably, the first clamping piece comprises a first clamping block and a plurality of second clamping blocks symmetrically arranged on the first clamping block, one side face of each second clamping block is arc-shaped, and one end face, close to the connecting piece, of each first clamping block is arc-shaped.
Preferably, the two groups of connecting pieces are symmetrically arranged on the protection plate and are respectively arranged at two sides of the transparent protection piece.
Preferably, a second protection mechanism is detachably mounted between the two sets of mounting columns and comprises two sets of first protection seats and two sets of second protection seats detachably connected with the first protection seats, and the first protection seats and the second protection seats are arranged on the inner sides of the two sets of mounting columns.
Preferably, the first fixing piece is fixedly mounted at two ends of the second protection seat, a fixing groove matched with the first fixing piece is formed in the first protection seat, and the second fixing piece detachably connected with the first fixing piece is fixedly mounted in the fixing groove.
Preferably, the second fixing piece is U-shaped, a plurality of groups of second clamping pieces are fixedly mounted on two sides of the outer surface of the second fixing piece, and a plurality of groups of second clamping grooves matched with the second clamping pieces are formed in the outer surface of the first fixing piece.
Preferably, the shape of first protection seat is "U" style of calligraphy, and two sets of second protection seats match with two sets of first protection seats and set up for second protection seat and first protection seat form annular recess.
Preferably, the annular groove is movably provided with the elastic protection piece, a plurality of groups of guide blocks are fixedly arranged on two sides of the outer surface of the elastic protection piece, and guide grooves matched with the guide blocks are formed in the inner side surface of the first protection seat and the inner side surface of the second protection seat.
Preferably, both ends of the elastic protection pieces are respectively detachably mounted on the inner sides of the two groups of first protection seats, and the height of the elastic protection pieces is matched with that of the optical grating.
Preferably, the bottom end of the grating is away from the ground by a certain distance, the distance is easy to cause a protection dead angle, and the elastic protection piece can prevent external objects from entering the manipulator production from the protection dead angle.
Compared with the prior art, the invention has the following beneficial effects:
1. the installation upright post and the protecting sleeve are matched for use through the arranged first protecting mechanism, so that the internal grating can be effectively protected, the protecting plate and the transparent protecting part are matched for use, and the grating is prevented from being collided and damaged by an external object, so that the service life of the grating is prolonged, the connecting piece and the first clamping piece are matched for use, so that the protecting plate can be detached from the installation upright post, the grating is convenient to maintain, the use of people is facilitated, and the applicability of the manipulator grating protecting device is improved;
2. through the second protection machanism who sets up, first protection seat and the cooperation of second protection seat are used, can couple together two sets of installation stand, first mounting through setting up, second mounting and second fastener, can dismantle first protection seat and second protection seat and connect, elasticity protection spare passes through the guide block in the guide way, can make elasticity protection spare, first protection seat and the cooperation of second protection seat are used, avoid in the foreign object gets into the manipulator production line, carry out effectual protection to it, the use of people has been made things convenient for, can improve whole manipulator grating protector's protection effect.
Drawings
FIG. 1 is an overall structural view of a manipulator optical grating protection device according to the present invention;
FIG. 2 is a partial structural view of a first protection mechanism in the optical grating protection device of a manipulator according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 of a robot optical grating protection device according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 2 of a robot optical grating protection device according to the present invention;
fig. 5 is a partial structure diagram of a protection plate in the optical grating protection device for a manipulator according to the present invention;
FIG. 6 is an enlarged view of the structure at C in FIG. 5 of a robot optical grating protection device according to the present invention;
fig. 7 is a partial structural view of a second protection seat in the optical grating protection device of the manipulator according to the present invention;
fig. 8 is a partial structural view of an elastic protection member in a robot raster protection apparatus according to the present invention.
In the figure: 1. mounting the upright post; 2. a groove; 3. a protective sleeve; 4. a protection plate; 5. a transparent protective member; 6. a connecting member; 7. a first clip member; 8. a first clamping block; 9. a second fixture block; 10. a first protective seat; 11. a second protective seat; 12. a first fixing member; 13. a second fixing member; 14. a second clip member; 15. a second card slot; 16. an elastic guard; 17. a guide block; 18. a guide groove; 19. and connecting the grooves.
Detailed Description
The following further describes a specific embodiment of the manipulator optical grating protection device according to the present invention with reference to the accompanying drawings, and a main object of the present invention is to provide various manipulator optical grating protection devices, which can effectively solve the problems in the background art. A robot raster protection apparatus of the present invention is not limited to the description of the following embodiments.
In the description of the present invention, it is to be understood that the terms "coaxial", "lower", "one end", "upper", "lower", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations. 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.
Example 1
Referring to fig. 1-8, a robot grating guard includes: the device comprises two groups of mounting upright posts 1 and a first protection mechanism, wherein the first protection mechanism is detachably mounted on the two groups of mounting upright posts 1 and is used for protecting the grating; wherein, two groups of mounting upright posts 1 are symmetrically arranged, and grooves 2 matched with the grating are arranged on the mounting upright posts 1; first protection machanism includes lag 3 of fixed mounting in recess 2 and demountable installation at the inboard guard plate 4 of two sets of installation stands 1, and lag 3 parcel is in the outside of grating to protect grating and protect and install on guard plate 4 and grating assorted transparent protection piece 5, make the grating report to the police and protect.
The protective sleeve 3 is made of elastic material.
The grating works normally through the transparent shield 5.
The first protection mechanism further comprises two groups of connecting pieces 6 fixedly installed on the protection plate 4 and a connecting groove 19 formed in the installation stand column 1, a plurality of groups of first clamping pieces 7 are fixedly installed in the connecting groove 19, and a plurality of groups of first clamping grooves clamped with the first clamping pieces 7 are formed in the connecting pieces 6.
The first clamping piece 7 comprises a first clamping block 8 and a plurality of groups of second clamping blocks 9 symmetrically arranged on the first clamping block 8, one side face of each second clamping block 9 is arc-shaped, and one end face, close to the connecting piece 6, of each first clamping block 8 is arc-shaped.
Two sets of connectors 6 are symmetrically installed on the protection plate 4 and are respectively arranged on two sides of the transparent protection member 5.
Adjust first protection machanism, with the parcel of lag 3 on the outside of grating, install the grating in recess 2, insert connecting piece 6 in spread groove 19, insert first fastener 7 in the first draw-in groove for second fixture block 9 and connecting piece 6 joint are installed the guard plate 4 on the installation stand 1.
Through the first protection machanism who sets up, installation stand 1 and the cooperation of lag 3 are used, can carry out effectual protection to the grating of inside, guard plate 4 and the cooperation of transparent protection part 5 are used, avoid being damaged by the collision of external object, thereby the life of grating has been prolonged, connecting piece 6 and the cooperation of first fastener 7 are used, can dismantle guard plate 4 from installation stand 1, be convenient for maintain it, make things convenient for people's use, manipulator grating protector's suitability has been improved.
Example 2
As shown in fig. 1 to 8, the manipulator optical grating protection device according to the present embodiment further includes, in addition to embodiment 1, the following:
the detachable mounting has the second safeguard mechanism between two sets of installation stands 1, and the second safeguard mechanism includes two sets of first protection seats 10 and two sets of second protection seats 11 with first protection seats 10 detachable connection, and first protection seats 10 and second protection seats 11 all set up the inboard at two sets of installation stands 1.
The first protection seat 10 is mounted on the mounting post 1 by bolts.
First fixing pieces 12 are fixedly mounted at two ends of the second protection seat 11, a fixing groove matched with the first fixing pieces 12 is formed in the first protection seat 10, and second fixing pieces 13 detachably connected with the first fixing pieces 12 are fixedly mounted in the fixing groove.
The second fixing member 13 is U-shaped, a plurality of second clamping members 14 are fixedly mounted on two sides of the outer surface of the second fixing member 13, and a plurality of second clamping grooves 15 matched with the second clamping members 14 are formed in the outer surface of the first fixing member 12.
The shape of first protection seat 10 is "U" style of calligraphy, and two sets of second protection seats 11 match the setting with two sets of first protection seats 10 for second protection seat 11 constitutes the annular groove with first protection seat 10.
The annular groove is movably provided with an elastic protection piece 16, two sides of the outer surface of the elastic protection piece 16 are fixedly provided with a plurality of groups of guide blocks 17, and the inner side surface of the first protection seat 10 and the inner side surface of the second protection seat 11 are provided with guide grooves 18 matched with the guide blocks 17.
Both ends of the elastic protection piece 16 are respectively and detachably mounted at the inner sides of the two groups of first protection seats 10, and the height of the elastic protection piece 16 is matched with that of the grating.
The bottom end of the grating is away from the ground by a certain distance, which easily causes a protection dead angle, and the elastic protection piece 16 can prevent external objects from entering the manipulator production from the protection dead angle.
It should be noted that the invention is a manipulator grating protection device, and when in use:
adjusting the second protection mechanism, fixing the first protection seat 10 on the installation upright post 1, installing the elastic protection piece 16 on one group of first protection seats 10, installing the guide block 17 in the guide groove 18, inserting the first fixing piece 12 into the fixing groove, connecting the second fixing piece 13 with the first fixing piece 12, clamping the second clamping piece 14 into the second clamping groove 15, fixing the first protection seat 10 with the second protection seat 11, pulling the elastic protection piece 16 to drive the guide block 17 to move in the guide groove 18, and fixedly connecting the elastic protection piece 16 with the other group of first protection seats 10.
Through the second protection machanism who sets up, first protection seat 10 and the cooperation of second protection seat 11 are used, can couple together two sets of installation stand 1, through the first mounting 12 that sets up, second mounting 13 and second fastener 14, can dismantle first protection seat 10 and second protection seat 11 and connect, elasticity protection part 16 passes through guide block 17 in guide way 18, can make elasticity protection part 16, first protection seat 10 and the cooperation of second protection seat 11 are used, avoid the foreign object to get into in the manipulator production line, carry out effectual protection to it, people's use has been made things convenient for, can improve whole manipulator grating protector's protection effect.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A manipulator grating protection device is characterized by comprising:
two groups of mounting upright posts (1);
the first protection mechanism is detachably arranged on the two groups of mounting upright posts (1) and protects the grating;
wherein, the two groups of mounting upright posts (1) are symmetrically arranged, and the mounting upright posts (1) are provided with grooves (2) matched with the grating;
first protection machanism includes lag (3) of fixed mounting in recess (2) and demountable installation at two sets of installation stand (1) inboard guard plate (4), and lag (3) parcel is in the outside of grating to protect and install on guard plate (4) with grating assorted transparent protection spare (5) to the grating, make the grating report to the police and protect.
2. A robotic raster protection device according to claim 1, characterized in that: first protection machanism still includes connecting piece (6) and the spread groove (19) of seting up on installation stand (1) on two sets of fixed mounting on guard plate (4), and fixed mounting has the first fastener of a plurality of groups (7) in spread groove (19), offers the first draw-in groove of a plurality of groups and first fastener (7) block on connecting piece (6).
3. A robotic raster protection device according to claim 2, characterized in that: the first clamping piece (7) comprises a first clamping block (8) and a plurality of groups of second clamping blocks (9) symmetrically installed on the first clamping block (8), one side face of each second clamping block (9) is arc-shaped, and one end face, close to the connecting piece (6), of each first clamping block (8) is arc-shaped.
4. A robotic raster protection device according to claim 2, characterized in that: two groups of connecting pieces (6) are symmetrically arranged on the protection plate (4) and are respectively arranged at two sides of the transparent protection piece (5).
5. A manipulator grating protection device according to claim 1, characterized in that: the detachable mounting has the second safeguard mechanism between two sets of installation stands (1), and the second safeguard mechanism includes two sets of first protection seats (10) and two sets of second protection seats (11) of connecting first protection seat (10) can be dismantled, and first protection seat (10) and second protection seat (11) all set up the inboard at two sets of installation stands (1).
6. A robotic raster protection device according to claim 5, characterized in that: first fixing pieces (12) are fixedly mounted at two ends of the second protection seat (11), fixing grooves matched with the first fixing pieces (12) are formed in the first protection seat (10), and second fixing pieces (13) detachably connected with the first fixing pieces (12) are fixedly mounted in the fixing grooves.
7. A manipulator grating protection device according to claim 6, wherein: the second fixing piece (13) is U-shaped, a plurality of groups of second clamping pieces (14) are fixedly mounted on two sides of the outer surface of the second fixing piece (13), and a plurality of groups of second clamping grooves (15) matched with the second clamping pieces (14) are formed in the outer surface of the first fixing piece (12).
8. A robotic raster protection device according to claim 7, characterized in that: the first protection seats (10) are U-shaped, and the two groups of second protection seats (11) are matched with the two groups of first protection seats (10) so that the second protection seats (11) and the first protection seats (10) form an annular groove.
9. A robotic raster protection device according to claim 8, characterized in that: the annular groove is movably provided with an elastic protection piece (16), a plurality of groups of guide blocks (17) are fixedly arranged on two sides of the outer surface of the elastic protection piece (16), and guide grooves (18) matched with the guide blocks (17) are formed in the inner side surface of the first protection seat (10) and the inner side surface of the second protection seat (11).
10. A manipulator grating protection device according to claim 9, wherein: two ends of the elastic protection piece (16) are respectively and detachably arranged at the inner sides of the two groups of first protection seats (10), and the height of the elastic protection piece (16) is matched with that of the grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210873790.9A CN115284336A (en) | 2022-07-25 | 2022-07-25 | Manipulator grating protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210873790.9A CN115284336A (en) | 2022-07-25 | 2022-07-25 | Manipulator grating protection device |
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| Publication Number | Publication Date |
|---|---|
| CN115284336A true CN115284336A (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210873790.9A Pending CN115284336A (en) | 2022-07-25 | 2022-07-25 | Manipulator grating protection device |
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| CN (1) | CN115284336A (en) |
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|---|---|---|---|---|
| CN2705777Y (en) * | 2004-03-18 | 2005-06-22 | 上海紫珊光电技术有限公司 | Slotted structure elastomer optical fiber rastor strain sensor head |
| DE202011050083U1 (en) * | 2011-05-10 | 2012-08-13 | Sick Ag | Protective grid for a light grid |
| DE202012104321U1 (en) * | 2012-11-09 | 2014-02-11 | Sick Ag | Optoelectronic sensor |
| DE202013100557U1 (en) * | 2013-02-07 | 2014-05-08 | Sick Ag | sensor |
| DE102013101827A1 (en) * | 2013-02-25 | 2015-08-13 | Achim Herrmann | Method and control system for personal protection for industrial installations, in particular for industrial robot installations |
| CN206493336U (en) * | 2017-01-03 | 2017-09-15 | 马志敏 | A kind of protector and robot teaching's system |
| CN108507598A (en) * | 2017-02-28 | 2018-09-07 | 香港理工大学 | A kind of fiber bragg grating angular transducer |
| CN110434895A (en) * | 2018-05-03 | 2019-11-12 | 北新集团建材股份有限公司 | A kind of robot guard system and method |
| CN211966785U (en) * | 2020-04-09 | 2020-11-20 | 西安嘉瀚机电科技有限公司 | Rapid clamping and fixing device for machining sliding block |
| CN214922700U (en) * | 2021-05-09 | 2021-11-30 | 长春七海光电技术有限公司 | Glass is protector for grating chi |
| CN216591013U (en) * | 2021-11-06 | 2022-05-24 | 长春一汽富维安道拓汽车金属零部件有限公司 | Grating protective cover |
-
2022
- 2022-07-25 CN CN202210873790.9A patent/CN115284336A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705777Y (en) * | 2004-03-18 | 2005-06-22 | 上海紫珊光电技术有限公司 | Slotted structure elastomer optical fiber rastor strain sensor head |
| DE202011050083U1 (en) * | 2011-05-10 | 2012-08-13 | Sick Ag | Protective grid for a light grid |
| DE202012104321U1 (en) * | 2012-11-09 | 2014-02-11 | Sick Ag | Optoelectronic sensor |
| DE202013100557U1 (en) * | 2013-02-07 | 2014-05-08 | Sick Ag | sensor |
| DE102013101827A1 (en) * | 2013-02-25 | 2015-08-13 | Achim Herrmann | Method and control system for personal protection for industrial installations, in particular for industrial robot installations |
| CN206493336U (en) * | 2017-01-03 | 2017-09-15 | 马志敏 | A kind of protector and robot teaching's system |
| CN108507598A (en) * | 2017-02-28 | 2018-09-07 | 香港理工大学 | A kind of fiber bragg grating angular transducer |
| CN110434895A (en) * | 2018-05-03 | 2019-11-12 | 北新集团建材股份有限公司 | A kind of robot guard system and method |
| CN211966785U (en) * | 2020-04-09 | 2020-11-20 | 西安嘉瀚机电科技有限公司 | Rapid clamping and fixing device for machining sliding block |
| CN214922700U (en) * | 2021-05-09 | 2021-11-30 | 长春七海光电技术有限公司 | Glass is protector for grating chi |
| CN216591013U (en) * | 2021-11-06 | 2022-05-24 | 长春一汽富维安道拓汽车金属零部件有限公司 | Grating protective cover |
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