CN111660377A - Dull and stereotyped optional position radian line automatic measurement draws perforating device - Google Patents
Dull and stereotyped optional position radian line automatic measurement draws perforating device Download PDFInfo
- Publication number
- CN111660377A CN111660377A CN202010577523.8A CN202010577523A CN111660377A CN 111660377 A CN111660377 A CN 111660377A CN 202010577523 A CN202010577523 A CN 202010577523A CN 111660377 A CN111660377 A CN 111660377A
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- China
- Prior art keywords
- axis
- feeding
- arc control
- control rod
- axis feeding
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C3/00—Drilling machines or drilling devices; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G23/00—Gauging means specially designed for adjusting of tools or guides, e.g. adjusting cutting blades in cutter blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
- B44D3/22—Implements or apparatus for special techniques, e.g. for painting lines, for pouring varnish; Batik pencils
- B44D3/225—Instruments or apparatus for painting lines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
The invention relates to the technical field of measurement, and discloses an automatic measurement, drawing and punching device for an arbitrary position radian line of a flat plate. This dull and stereotyped optional position radian line automatic measure draws perforating device drives X axle through X axle feed runner and feeds the rack displacement, X axle feed rack drives X axle positive circular arc control lever and X axle anti-circular arc control lever and rotates, X axle positive circular arc control lever and X axle anti-circular arc control lever drive positive circular arc supporting frame and anti-circular arc supporting frame displacement, the cooperation of mechanisms such as rethread Y axle positive circular arc control lever is used to reach and use the automatic pitch arc of the circular arc of Y axle center as the initial point to draw.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a device for automatically measuring, drawing and punching radian lines at any position of a flat plate.
Background
With the development of society and the continuous improvement of living standard of people, people are not only limited to the enjoyment of pursuing substances, but also pay more attention to the mental sublimation, the pursuit of beauty is the embodiment of beauty of human beings since ancient times, and the development of the existing furniture decoration increasingly pays more attention to the matching use of various decorative patterns and textures.
Along with the continuous development of the furniture industry, the furniture market is continuously expanded, along with the continuous expansion of the furniture market, the cool competition is achieved, the texture attractiveness of the furniture becomes the market competitiveness, manual drawing is mostly adopted for drawing attractive textures, the punching and radian cutting are very difficult, and the drawing precision is accurate.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the automatic measuring, drawing and punching device for the radian line at any position of the flat plate, which has the advantages of self-fixing of the circle center of the radian line, automatic clamping of accurate punching on the radian line and the like, and solves the problems of difficult cutting of plane radian and inaccurate punching of the radian line.
(II) technical scheme
In order to realize the purposes of self-determining the circle center of the radian line and automatically clamping the radian line to accurately punch, the invention provides the following technical scheme: the automatic measuring, drawing and punching device for the radian lines of any position of a flat plate comprises a placing plate, wherein an X-axis feeding track is fixedly connected to the bottom of the placing plate, a Y-axis feeding track is fixedly connected to the left side of the placing plate, a scale plate is fixedly connected to the front of the placing plate, an X-axis feeding rack is slidably connected to the front of the X-axis feeding track, an X-axis feeding rotating wheel is fixedly connected to the front of the X-axis feeding track, a Y-axis feeding rack is slidably connected to the front of the Y-axis feeding track, a Y-axis feeding rotating wheel is fixedly connected to the front of the Y-axis feeding track, an X-axis regular arc control rod is rotatably connected to one end, close to the Y-axis feeding rotating wheel, of the X-axis feeding rotating wheel, a Y-axis regular arc control rod is rotatably connected to one end, close to the X-axis feeding rotating wheel, of the X-axis regular arc control rod and one end, close, the positive rotation of X axle regular circular arc control lever is connected with X axle anti-circular arc control lever, the positive rotation of Y axle regular circular arc control lever is connected with Y axle anti-circular arc control lever, the one end that X axle anti-circular arc control lever and Y axle anti-circular arc control lever are close to is rotated and is connected with anti-circular arc supporting frame, the inside fixedly connected with centre gripping support of anti-circular arc supporting frame, the inside swing joint of anti-circular arc supporting frame has rotatory track board, the spacing axle of positive fixedly connected with of rotatory track board, the inboard fixedly connected with centre gripping cambered surface of rotatory track board, the inside swing joint of centre gripping support has pressure spring, the outside fixedly connected with rotary wrench of rotatory track board.
Preferably, the placing plate is rectangular, rectangular mounting grooves are formed in the left side and the bottom of the placing plate, and the width of the placing plate is matched with the X-axis feeding track, the Y-axis feeding track and the scale plate.
Preferably, the scale plate is right-angled, and the front surface of the scale plate is provided with scale marks.
Preferably, one side of the X-axis feeding rack and one side of the Y-axis feeding rack are provided with threads matched with the X-axis feeding rotating wheel, the back of the X-axis feeding rack is provided with a dovetail groove matched with the X-axis feeding track and the Y-axis feeding track, and the front of the X-axis feeding rack is provided with a diamond scale indicating groove.
Preferably, the X-axis feeding rotating wheel and the Y-axis feeding rotating wheel are composed of a feeding support, a feeding rotating shaft, a feeding gear, a rotating flange and a holding handle, the feeding support is connected with the feeding rotating shaft in a rotating mode, one end of the feeding rotating shaft is fixedly connected with the feeding gear, the other end of the feeding rotating shaft is fixedly connected with the rotating flange, and one side, far away from the feeding support, of the rotating flange is connected with the holding handle in a rotating mode.
Preferably, one end of the X-axis positive arc control rod and one end of the Y-axis positive arc control rod are provided with circular through holes, and the other ends of the X-axis positive arc control rod and the Y-axis positive arc control rod are fixedly connected with circular rings matched with the reverse arc clamping frame and the positive arc clamping frame.
Preferably, the reverse arc clamping frame and the positive arc clamping frame are the same in size, a circular groove is formed in the outer side of the reverse arc clamping frame, and a rectangular cavity is formed in the inner side of the reverse arc clamping frame.
Preferably, one end of the pressing spring is in contact with the clamping bracket, and the other end is in contact with the feeding rotating shaft.
(III) advantageous effects
Compared with the prior art, the invention provides a device for automatically measuring, drawing and punching any-position radian line of a flat plate, which has the following beneficial effects:
1. this dull and stereotyped optional position radian line automatic measure draws perforating device drives X axle through X axle feed runner and feeds the rack displacement, X axle feed rack drives X axle positive circular arc control lever and X axle anti-circular arc control lever and rotates, X axle positive circular arc control lever and X axle anti-circular arc control lever drive positive circular arc supporting frame and anti-circular arc supporting frame displacement, the cooperation of mechanisms such as rethread Y axle positive circular arc control lever is used to reach and use the automatic pitch arc of the circular arc of Y axle center as the initial point to draw.
2. This dull and stereotyped optional position radian line automatic measure draws perforating device drives Y axle through Y axle feed runner and feeds the rack displacement, and Y axle feed rack drives Y axle positive circular arc control lever and Y axle anti-circular arc control lever and rotates, and Y axle positive circular arc control lever and Y axle anti-circular arc control lever drive positive circular arc supporting rack and anti-circular arc supporting rack displacement, and the cooperation of mechanisms such as positive circular arc control lever of rethread X axle is used to reach and use the automatic pitch arc of the circular arc of X axle center as the initial point to draw.
3. This dull and stereotyped optional position radian line automatic measure draws perforating device drives rotatory track board through rotatory spanner and rotates, and rotatory track board drives spacing axle and centre gripping cambered surface and removes, and spacing axle drives the compression spring compression, and the centre gripping cambered surface enlarges, punches in putting into the centre gripping cambered surface to the handle gun drill, and the cooperation of mechanisms such as rethread clamping bracket is used to reach the effect that the accurate punched on the automatic centre gripping radian line.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a clamping structure according to the present invention;
FIG. 3 is a cross-sectional view of a clamping structure of the present invention;
fig. 4 is a schematic view of the structure of the feeding wheel of the present invention.
In the figure: 1. placing the plate; 2. an X-axis feed track; 3. a scale plate; 4. an X-axis feed rack; 5. a Y-axis feed rack; 6. an X-axis feed runner; 7. a Y-axis feed runner; 8. an X-axis right circular arc control rod; 9. a Y-axis right arc control rod; 10. a right circular arc holding frame; 11. an X-axis reverse arc control rod; 12. a Y-axis reverse arc control rod; 13. a reverse arc holding frame; 14. a Y-axis feed track; 15. rotating the track plate; 16. a limiting shaft; 17. a compression spring; 18. clamping the cambered surface; 19. clamping the bracket; 20. rotating the wrench; 21. a feed carriage; 22. a feed rotary shaft; 23. a feed gear; 24. rotating the flange; 25. and (4) holding the handle.
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.
Referring to fig. 1-4, an automatic measuring, drawing and punching device for an arbitrary position radian curve of a flat plate comprises a placing plate 1, wherein the placing plate 1 is rectangular, the left side and the bottom of the placing plate 1 are provided with rectangular mounting grooves, the width of the placing plate is matched with an X-axis feeding track 2, a Y-axis feeding track 14 and a scale plate 3, the bottom of the placing plate 1 is fixedly connected with the X-axis feeding track 2, the left side of the placing plate 1 is fixedly connected with the Y-axis feeding track 14, the front side of the placing plate 1 is fixedly connected with the scale plate 3, the scale plate 3 is in a right-angle shape, the front side of the placing plate is provided with scale marks, the front side of the X-axis feeding track 2 is slidably connected with an X-axis feeding rack 4, the front side of the X-axis feeding track 2 is fixedly connected with an X-axis feeding runner 6, the front side of the Y-axis feeding track 14 is, the back of the feeding device is provided with dovetail grooves matched with the X-axis feeding track 2 and the Y-axis feeding track 14, the front of the feeding track 14 is provided with a diamond scale indicating groove, the front of the feeding track 14 is fixedly connected with a Y-axis feeding rotating wheel 7, the X-axis feeding rotating wheel 6 and the Y-axis feeding rotating wheel 7 are composed of a feeding bracket 21, a feeding rotating shaft 22, a feeding gear 23, a rotating flange 24 and a holding handle 25, the feeding rotating shaft 22 is rotatably connected inside the feeding bracket 21, the feeding gear 23 is fixedly connected at one end of the feeding rotating shaft 22, the rotating flange 24 is fixedly connected at the other end of the feeding rotating shaft 22, the holding handle 25 is rotatably connected at one side of the rotating flange 24 far away from the feeding bracket 21, an X-axis regular circular arc control rod 8 is rotatably connected at one end of the X-axis feeding rotating wheel 6 close to the Y-axis feeding rotating wheel 7, and, one end of the X-axis positive arc control rod 8 and one end of the Y-axis positive arc control rod 9 are provided with circular through holes, the other ends are fixedly connected with circular rings matched with the reverse arc holding frame 13 and the positive arc holding frame 10, the end close to the X-axis positive arc control rod 8 and the Y-axis positive arc control rod 9 is rotatably connected with the positive arc holding frame 10, the front surface of the X-axis positive arc control rod 8 is rotatably connected with an X-axis reverse arc control rod 11, the front surface of the Y-axis positive arc control rod 9 is rotatably connected with a Y-axis reverse arc control rod 12, the end close to the X-axis reverse arc control rod 11 and the Y-axis reverse arc control rod 12 is rotatably connected with a reverse arc holding frame 13, the reverse arc holding frame 13 and the positive arc holding frame 10 are the same in size, the outer side is provided with a circular groove, the inner part is provided with a rectangular cavity, the inner part of the reverse arc holding frame 13 is fixedly connected with a holding frame 19, the inner part of the reverse, the front of rotatory track board 15 fixedly connected with spacing axle 16, the inboard fixedly connected with centre gripping cambered surface 18 of rotatory track board 15, the inside swing joint of centre gripping support 19 has pressure spring 17, pressure spring 17's one end and the contact of centre gripping support 19, the other end with feed the rotation axis 22 contact, the outside fixedly connected with rotary wrench 20 of rotatory track board 15.
The working principle is as follows: fixing a flat plate needing punching or arc cutting on a placing plate 1, adjusting the position of a positive arc holding frame 10, rotating an X-axis feeding rotating wheel 6, driving the X-axis feeding rack 4 to displace by the X-axis feeding rotating wheel 6, adjusting the position of the X-axis center of an arc, keeping the X-axis feeding rack 4 stationary, rotating a Y-axis feeding rotating wheel 7, driving the Y-axis feeding rack 5 to displace by the Y-axis feeding rotating wheel 7, driving the Y-axis feeding rack 5 to drive a Y-axis positive arc control rod 9 to rotate, driving the positive arc holding frame 10 to swing by the Y-axis positive arc control rod 9, keeping the positive arc holding frame 10 stable and accurately positioned, performing accurate punching and arc drawing, when the punching position is switched, continuing to rotate the X-axis feeding rotating wheel 6, keeping the Y-axis feeding rack 5 stationary, adjusting the arc with the Y-axis as the center, and after adjusting the positions of the X-axis direction and the Y-axis direction, make the centre of a circle aim at the required position of punching, rotatory rotary wrench 20 drives rotatory track board 15 rotatory, and rotatory track board 15 drives spacing axle 16 and the removal of centre gripping cambered surface 18, and spacing axle 16 drives pressure spring 17 compression, and centre gripping cambered surface 18 enlarges, punches in putting into centre gripping cambered surface 18 to handle gun drill, and the cooperation of mechanisms such as rethread clamping bracket 19 is used to reach the effect that the accuracy was punched on the automatic centre gripping radian line.
Having shown and described embodiments of the present invention, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the 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 dull and stereotyped optional position radian line automatic measure draws perforating device, is including placing board (1), its characterized in that: the X-axis feeding track (2) is fixedly connected to the bottom of the placing plate (1), the Y-axis feeding track (14) is fixedly connected to the left side of the placing plate (1), the scale plate (3) is fixedly connected to the front side of the placing plate (1), the X-axis feeding rack (4) is connected to the front side of the X-axis feeding track (2) in a sliding mode, the X-axis feeding runner (6) is fixedly connected to the front side of the X-axis feeding track (2), the Y-axis feeding rack (5) is connected to the front side of the Y-axis feeding track (14) in a sliding mode, the Y-axis feeding runner (7) is fixedly connected to the front side of the Y-axis feeding track (14), the X-axis positive circular arc control rod (8) is connected to one end, close to the Y-axis feeding runner (7), of the Y-axis feeding runner (7) is connected to one end, close to the X-axis feeding runner (6), of the Y, the X-axis positive arc control rod (8) and the Y-axis positive arc control rod (9) are connected with a positive arc clamping frame (10) in a rotating mode at one end close to each other, the X-axis positive arc control rod (8) is connected with an X-axis reverse arc control rod (11) in a rotating mode at the front side, the Y-axis positive arc control rod (9) is connected with a Y-axis reverse arc control rod (12) in a rotating mode at the front side, the X-axis reverse arc control rod (11) and the Y-axis reverse arc control rod (12) are connected with a reverse arc clamping frame (13) in a rotating mode at one end close to each other, a clamping support (19) is fixedly connected to the inside of the reverse arc clamping frame (13), a rotating plate (15) is movably connected to the inside of the reverse arc clamping frame (13), a limiting shaft (16) is fixedly connected to the front side of the rotating track plate (15), and a clamping cambered surface (18) is fixedly, the inside swing joint of centre gripping support (19) has pressure spring (17), the outside fixedly connected with of rotatory track board (15) rotates spanner (20).
2. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: the placing plate (1) is rectangular, rectangular mounting grooves are formed in the left side and the bottom of the placing plate, and the width of the placing plate is matched with the X-axis feeding track (2), the Y-axis feeding track (14) and the scale plate (3).
3. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: the scale plate (3) is right-angled, and the front surface of the scale plate is provided with scale marks.
4. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: one side of the X-axis feeding rack (4) and one side of the Y-axis feeding rack (5) are provided with threads matched with the X-axis feeding rotating wheel (6), the back of the X-axis feeding rack is provided with a dovetail groove matched with the X-axis feeding track (2) and the Y-axis feeding track (14), and the front of the X-axis feeding rack is provided with a diamond scale indicating groove.
5. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: the X-axis feeding rotating wheel (6) and the Y-axis feeding rotating wheel (7) are composed of a feeding support (21), a feeding rotating shaft (22), a feeding gear (23), a rotating flange (24) and a holding handle (25), the feeding support (21) is connected with the feeding rotating shaft (22) in a rotating mode, the feeding gear (23) is fixedly connected to one end of the feeding rotating shaft (22), the rotating flange (24) is fixedly connected to the other end of the feeding rotating shaft (22), and the holding handle (25) is connected to one side, away from the feeding support (21), of the rotating flange (24) in a rotating mode.
6. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: circular through holes are formed in one ends of the X-axis positive arc control rod (8) and the Y-axis positive arc control rod (9), and the other ends of the X-axis positive arc control rod and the Y-axis positive arc control rod are fixedly connected with circular rings matched with the reverse arc clamping frame (13) and the positive arc clamping frame (10).
7. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: the reverse arc clamping frame (13) and the positive arc clamping frame (10) are the same in size, a circular groove is formed in the outer side of the reverse arc clamping frame, and a rectangular cavity is formed in the reverse arc clamping frame.
8. The automatic measuring, drawing and punching device for the radian lines of any position of a flat plate according to claim 1, is characterized in that: one end of the compression spring (17) is contacted with the clamping bracket (19), and the other end is contacted with the feeding rotating shaft (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577523.8A CN111660377A (en) | 2020-06-23 | 2020-06-23 | Dull and stereotyped optional position radian line automatic measurement draws perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577523.8A CN111660377A (en) | 2020-06-23 | 2020-06-23 | Dull and stereotyped optional position radian line automatic measurement draws perforating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111660377A true CN111660377A (en) | 2020-09-15 |
Family
ID=72389464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010577523.8A Withdrawn CN111660377A (en) | 2020-06-23 | 2020-06-23 | Dull and stereotyped optional position radian line automatic measurement draws perforating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111660377A (en) |
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|---|---|---|---|---|
| DE202004002809U1 (en) * | 2003-02-24 | 2004-07-01 | Gmeiner, Josef Joachim | Drilling device for hand drills has slide carriage fixable on drill through flange and connectable to measuring unit through column and bearing plate |
| CN204514216U (en) * | 2015-02-04 | 2015-07-29 | 王金鑫 | A kind of slide calliper rule protractor |
| CN106695333A (en) * | 2016-12-03 | 2017-05-24 | 国海芝 | Automatic multi-station punching and tapping device |
| CN106767331A (en) * | 2016-12-07 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of fixture and its measuring method for diamond shaped assembly extreme position angle |
| CN107252904A (en) * | 2017-06-10 | 2017-10-17 | 上海交通大学 | A kind of drilling equipment of blind hole measuring residual stress |
| CN208588290U (en) * | 2018-07-30 | 2019-03-08 | 苏州贵研精密机械制造有限公司 | A kind of hole position gauge tooling |
| CN209453975U (en) * | 2018-12-11 | 2019-10-01 | 河北建工集团有限责任公司 | A kind of adjustable porcelain plate boring positioning tool |
| CN209559225U (en) * | 2019-05-08 | 2019-10-29 | 中国水利水电第七工程局有限公司 | A kind of monitoring instrument digital display wide range three-dimensional in-situ verification device |
| CN209831907U (en) * | 2019-04-09 | 2019-12-24 | 合肥职业技术学院 | Perforating device is used in furniture design decoration |
| CN210416026U (en) * | 2019-08-13 | 2020-04-28 | 高翠云 | Financial accounting tax yield parabola is assistor for drawing |
-
2020
- 2020-06-23 CN CN202010577523.8A patent/CN111660377A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004002809U1 (en) * | 2003-02-24 | 2004-07-01 | Gmeiner, Josef Joachim | Drilling device for hand drills has slide carriage fixable on drill through flange and connectable to measuring unit through column and bearing plate |
| CN204514216U (en) * | 2015-02-04 | 2015-07-29 | 王金鑫 | A kind of slide calliper rule protractor |
| CN106695333A (en) * | 2016-12-03 | 2017-05-24 | 国海芝 | Automatic multi-station punching and tapping device |
| CN106767331A (en) * | 2016-12-07 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of fixture and its measuring method for diamond shaped assembly extreme position angle |
| CN107252904A (en) * | 2017-06-10 | 2017-10-17 | 上海交通大学 | A kind of drilling equipment of blind hole measuring residual stress |
| CN208588290U (en) * | 2018-07-30 | 2019-03-08 | 苏州贵研精密机械制造有限公司 | A kind of hole position gauge tooling |
| CN209453975U (en) * | 2018-12-11 | 2019-10-01 | 河北建工集团有限责任公司 | A kind of adjustable porcelain plate boring positioning tool |
| CN209831907U (en) * | 2019-04-09 | 2019-12-24 | 合肥职业技术学院 | Perforating device is used in furniture design decoration |
| CN209559225U (en) * | 2019-05-08 | 2019-10-29 | 中国水利水电第七工程局有限公司 | A kind of monitoring instrument digital display wide range three-dimensional in-situ verification device |
| CN210416026U (en) * | 2019-08-13 | 2020-04-28 | 高翠云 | Financial accounting tax yield parabola is assistor for drawing |
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Application publication date: 20200915 |