CN113340233A - Internal spiral curved surface measuring machine - Google Patents
Internal spiral curved surface measuring machine Download PDFInfo
- Publication number
- CN113340233A CN113340233A CN202110634727.5A CN202110634727A CN113340233A CN 113340233 A CN113340233 A CN 113340233A CN 202110634727 A CN202110634727 A CN 202110634727A CN 113340233 A CN113340233 A CN 113340233A
- Authority
- CN
- China
- Prior art keywords
- cast iron
- measuring machine
- cavity
- iron
- spindle box
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Abstract
The invention relates to the technical field related to machining equipment, in particular to an internal spiral curved surface measuring machine which comprises a cast iron workbench, a spindle box and a fixing frame, wherein the spindle box is fixedly arranged at the rear side end of the cast iron workbench, the front side end of the spindle box is in transmission connection with a chuck, the rear side end of the spindle box is fixedly provided with a first synchronous motor, the first synchronous motor is in transmission connection with a rotating shaft in the spindle box, the front end and the rear end of the lower side surface of the cast iron workbench are respectively provided with a front mounting plate and a rear mounting plate, a transmission lead screw is rotatably arranged between the front mounting plate and the rear mounting plate, and the rear side end of the transmission lead screw is in transmission connection with a rotor of a second synchronous motor at the rear side end of the cast iron workbench through a first coupler; through setting up the interior helical curved surface measuring machine that comprises cast iron workstation, headstock and mount combination to reach and carry out the rapid survey to spiral stator inner curved surface, and the setting of grating chi and encoder can improve its accuracy of removing the displacement.
Description
Technical Field
The invention relates to the technical field related to machining equipment, in particular to an inner spiral curved surface measuring machine.
Background
The spiral stator is an important component of a single-screw pump single-screw drilling tool, the molded line of the spiral stator refers to the shape of an inner contour curve of the cross section of the spiral stator, and rubber can shrink and deform during the rubber injection and vulcanization manufacturing processes of the inner spiral rubber stator, so that the size and the shape of the contour of an inner cavity of the curved surface of the stator are deformed. Because the inner cavity of the stator is narrow and small, a common measuring instrument cannot go deep into the stator for measurement, and no measuring method can realize quick and accurate measurement of the profile of the section of the inner spiral stator at present.
Disclosure of Invention
The invention aims to provide an inner spiral curved surface measuring machine to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an internal spiral curved surface measuring machine, includes cast iron workstation, headstock and mount, the headstock is the back side of fixed mounting at the cast iron workstation, the preceding side transmission of headstock is connected with the chuck, the back side fixed mounting of headstock has first synchronous machine, first synchronous machine carries out the transmission with the pivot in the headstock and is connected, preceding position mounting panel and back position mounting panel are installed respectively to the downside front and back end of cast iron workstation, rotate between preceding position mounting panel and the back position mounting panel and install drive screw, drive screw's back side carries out the transmission through the rotor of first shaft coupling and cast iron workstation back side second synchronous machine and is connected, the back side that lies in the headstock on the cast iron workstation has seted up the rectangular channel, and the mount sets up among its notch for sliding, and the downside end and the drive screw of mount carry out the transmission and are connected, be provided with the tong iron on the mount, the front end of chuck is connected with the sensor bracing piece, displacement sensor is connected to the front end of sensor bracing piece.
Preferably, the cast iron worktable located on the two sides of the rectangular groove is symmetrically provided with grating rulers, the fixed frame is provided with an encoder, and the setting position of the encoder corresponds to the setting position of the grating rulers.
Preferably, the spindle box is provided with a cavity, a connecting shaft is rotatably mounted in the cavity through a bearing, two ends of the connecting shaft penetrate through the spindle box, and two ends of the connecting shaft are in transmission connection with the chuck and the first synchronous motor respectively.
Preferably, a third synchronous motor is installed on the fixing frame, a group of ball screws are symmetrically arranged on the fixing frame, and the ball screws are in transmission connection with the third synchronous motor through a second coupler.
Preferably, the clamp irons are symmetrically provided with a group and are driven by two ball screws respectively, and the measuring stator to be detected is positioned and clamped by the clamp irons.
Preferably, when the fixed frame drives the clamp iron to move to the measuring stator, the displacement sensor is positioned in an inner cavity of the measuring stator.
Preferably, the pincers iron is the rectangle pedestal structure, and the medial surface of pincers iron has seted up arc centre gripping groove, and the inside of pincers iron has seted up the air cavity, the one end of air cavity is provided with the trachea connector, and the tip of its trachea connector is connected with air exhaust equipment through the trachea, the arc centre gripping groove surface of pincers iron has seted up the absorption chamber, the absorption chamber is linked together with the air cavity, and the fixed rubber of the port position department in absorption chamber has the rubber ring, the outer terminal surface of rubber ring is the arcwall face, and the camber value of its arcwall face is identical with the lateral wall camber value of measuring the stator.
Preferably, an annular plate is integrally formed on the inner side wall of the adsorption cavity, a dustproof net is arranged on the annular plate, and the dustproof net is a high-density mesh nylon gauze.
Preferably, the cast iron workbench is provided with a positioning hole, the chuck clamps the sensor supporting rod through locking, the sensor supporting rod is matched with the displacement sensor, and the sensor supporting rod passes through the clamping position of the chuck, so that the sensor supporting rod has different displacement amounts.
Compared with the prior art, the invention has the beneficial effects that:
1. the inner spiral curved surface measuring machine composed of the cast iron workbench, the spindle box and the fixing frame is arranged, so that the inner curved surface of the spiral stator can be rapidly measured, and the moving displacement accuracy of the spiral stator can be improved due to the arrangement of the grating ruler and the encoder;
2. the device has simple integral structure, can achieve a machine for measuring the inner spiral curved surface, which is accurate, automatic and easy to operate, is very practical and has strong popularization value.
3. The clamp iron 12 used for clamping the measuring stator 17 on the device is arranged into a group of seat body structures, an air cavity 22 is formed in the seat body structures, and an adsorption cavity 24 is formed in an arc-shaped clamping groove in the inner side surface of the clamp iron 12, so that the measuring stator 17 is adsorbed and positioned in a negative pressure adsorption mode, compared with the traditional clamping mode, the stability of the device is higher, and the damage phenomenon of the measuring stator 17 caused by overlarge clamping force can be effectively avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a front view of the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 3;
FIG. 5 is a schematic view of the structure of the present invention;
FIG. 6 is a semi-sectional view of the present invention;
FIG. 7 is an enlarged view of the structure at C in FIG. 6;
fig. 8 is a schematic diagram of the present invention.
In the figure: the device comprises a cast iron workbench 1, a spindle box 2, a fixing frame 3, a chuck 4, a first synchronous motor 5, a front mounting plate 6, a rear mounting plate 7, a transmission screw 8, a second synchronous motor 9, a grating ruler 10, an encoder 11, a clamp iron 12, a sensor support rod 13, a displacement sensor 14, a ball screw 15, a second coupler 16, a measuring stator 17, incident light 18, reflected light 19, a rubber bushing 20, a third synchronous motor 21, an air cavity 22, an air pipe connecting port 23, an adsorption cavity 24, a rubber ring 25, an annular plate 26 and a dustproof net 27.
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. 1-8, the present invention provides a technical solution: an internal spiral curved surface measuring machine comprises a cast iron workbench 1, a spindle box 2 and a fixed frame 3, wherein the spindle box 2 is fixedly arranged at the rear side end of the cast iron workbench 1, the front side end of the spindle box 2 is in transmission connection with a chuck 4, the rear side end of the spindle box 2 is fixedly provided with a first synchronous motor 5, the first synchronous motor 5 is in transmission connection with a rotating shaft in the spindle box 2, the front end and the rear end of the lower side surface of the cast iron workbench 1 are respectively provided with a front mounting plate 6 and a rear mounting plate 7, a transmission lead screw 8 is rotatably arranged between the front mounting plate 6 and the rear mounting plate 7, the rear side end of the transmission lead screw 8 is in transmission connection with a rotor of a second synchronous motor 9 at the rear side end of the cast iron workbench 1 through a first coupler, the rear side end of the cast iron workbench 1, the rectangular groove is arranged at the rear side end of the spindle box 2, the fixed frame 3 is arranged in a notch in a sliding manner, and the lower side end of the fixed frame 3 is in transmission connection with the transmission lead screw 8, the fixed frame 3 is provided with a clamp 12, the front end of the chuck 4 is connected with a sensor support rod 13, and the front end of the sensor support rod 13 is connected with a displacement sensor 14.
Grating rulers 10 are symmetrically arranged on two sides of the rectangular groove on the cast iron workbench 1, an encoder 11 is arranged on the fixed frame 3, the arrangement position of the encoder 11 corresponds to the arrangement position of the grating rulers 10, and an inner spiral curved surface measuring machine formed by combining the cast iron workbench 1, the spindle box 2 and the fixed frame 3 is arranged, so that the inner curved surface of the spiral stator can be rapidly measured, and the arrangement of the grating rulers 10 and the encoder 11 can improve the accuracy of the movement displacement of the spiral stator;
the spindle box 2 is provided with a cavity, a connecting shaft is rotatably arranged in the cavity through a bearing, two ends of the connecting shaft penetrate through the spindle box 2, and two ends of the connecting shaft are respectively in transmission connection with the chuck 4 and the first synchronous motor 5;
a third synchronous motor 21 is installed on the fixed frame 3, a group of ball screws 15 are symmetrically arranged on the fixed frame 3, and the ball screws 15 are in transmission connection with the third synchronous motor 21 through a second coupler 16;
the clamp irons 12 are symmetrically arranged in a group and are driven by two ball screws 15 respectively, and the measuring stator 17 to be detected is positioned and clamped by the clamp irons 12;
when the fixed frame 3 drives the clamp 12 to move to the measuring stator 17, the displacement sensor 14 is positioned in the inner cavity of the measuring stator 17;
the clamp iron 12 is a rectangular base structure, an arc-shaped clamping groove is formed on the inner side surface of the clamp iron 12, an air cavity 22 is formed in the clamp iron 12, an air pipe connector 23 is arranged at one end of the air cavity 22, the end part of the air pipe connector 23 is connected with air pumping equipment through an air pipe, an adsorption cavity 24 is formed in the surface of the arc-shaped clamping groove of the clamp iron 12, the adsorption cavity 24 is communicated with the air cavity 22, a rubber ring 25 is fixedly connected to the port position of the adsorption cavity 24 in an adhesive mode, the outer end surface of the rubber ring 25 is an arc-shaped surface, the arc-shaped value of the arc-shaped surface is matched with the arc-shaped value of the outer side wall of the measuring stator 17, the clamp iron 12 used for clamping the measuring stator 17 on the device is arranged into a group of base structure, the air cavity 22 is formed in the base structure, the adsorption cavity 24 is formed in the arc-shaped clamping groove of the inner side surface of the clamp iron 12, and the measuring stator 17 is adsorbed and positioned in a negative pressure adsorption mode, compared with the traditional clamping mode, the clamping device has higher stability, and can effectively avoid the damage phenomenon of the measuring stator 17 caused by overlarge clamping force;
an annular plate 26 is integrally formed on the inner side wall of the adsorption cavity 24, a dustproof net 27 is arranged on the annular plate 26, and the dustproof net 27 is a high-density nylon gauze, so that the influence of foreign matters on the normal operation of the device is avoided;
the cast iron workbench 1 is provided with a positioning hole, the chuck 4 clamps the sensor support rod 13 through the locking 4, the sensor support rod 13 is matched with the displacement sensor 14, and the sensor support rod 13 has different displacement through the clamping position of the chuck 4;
the working principle is as follows: as shown in fig. 8, in which
Is the center of the tested spiral stator and the center of the supporting rod of the displacement sensor,
in order to displace the position of the incident ray of the sensor,
to secure the incident light emitting position for the reflected light receiving position in the actual measurement
With the center of the work
On the same straight line, the distance between them
Indicating the distance of the sensor from the surface of the workpiece to be measured
The distance from the center of the workpiece to the surface of the workpiece can be obtained by a displacement sensor
The surface data of the workpiece is collected by the measuring object and kept still, and the displacement sensor surrounds the center
Edge of
The direction is rotated by one circle, so that the section data of the workpiece is obtained. When data is collected, a measurement mode is triggered through the pulse of the displacement sensor, the reading of the displacement sensor is triggered by the pulse of the rotary encoder, and the correspondence between the angular value and the displacement value of the cross section data of the workpiece to be measured is realizedAnd performing subsequent processing on the data to obtain the section profile of the workpiece to be measured, thereby completing measurement.
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 (9)
1. The utility model provides an interior helical curved surface measuring machine, includes cast iron workstation (1), headstock (2) and mount (3), its characterized in that: the utility model discloses a cast iron machine, including headstock (2), preceding side transmission connection chuck (4) of headstock (2), the back side fixed mounting of headstock (2) has first synchronous machine (5), first synchronous machine (5) are connected with the pivot in headstock (2) in the transmission, preceding mounting panel (6) and back mounting panel (7) are installed respectively to the downside front and back end of cast iron workstation (1), rotate between preceding mounting panel (6) and back mounting panel (7) and install drive screw (8), the back side of drive screw (8) carries out the transmission through the rotor of first shaft coupling and cast iron workstation (1) back side second synchronous machine (9) and is connected, the rectangular channel has been seted up to the back side that lies in headstock (2) on cast iron workstation (1), the fixing frame (3) is arranged in a notch of the fixing frame in a sliding mode, the lower side end of the fixing frame (3) is in transmission connection with the transmission lead screw (8), the fixing frame (3) is provided with a clamp iron (12), the front end of the chuck (4) is connected with a sensor supporting rod (13), and the front end of the sensor supporting rod (13) is connected with a displacement sensor (14).
2. The internal helical curvature measuring machine according to claim 1, wherein: the utility model discloses a cast iron workstation, including cast iron workstation (1), the bilateral symmetry that lies in the rectangular channel is provided with grating chi (10), be provided with encoder (11) on mount (3), the position that sets up of encoder (11) is corresponding with the position that sets up of grating chi (10).
3. The internal helical curvature measuring machine according to claim 2, wherein: the spindle box (2) is provided with a cavity, a connecting shaft is rotatably installed in the cavity through a bearing, the two ends of the connecting shaft penetrate through the spindle box (2), and the two ends of the connecting shaft are in transmission connection with the chuck (4) and the first synchronous motor (5) respectively.
4. The internal helical curvature measuring machine according to claim 1, wherein: install third synchronous machine (21) on mount (3), and the symmetry is provided with a set of ball (15) on mount (3), ball (15) carry out the transmission through second shaft coupling (16) and third synchronous machine (21) and are connected.
5. The internal helical curvature measuring machine according to claim 4, wherein: the clamp iron (12) is symmetrically provided with a group, the clamp iron is driven by two ball screws (15), and a measuring stator (17) to be detected is positioned and clamped by the clamp iron (12).
6. The internal helical curvature measuring machine according to claim 5, wherein: when the fixed frame (3) drives the clamp iron (12) to move to the measuring stator (17), the displacement sensor (14) is positioned in the inner cavity of the measuring stator (17).
7. The internal helical curvature measuring machine according to claim 6, wherein: the clamp iron (12) is of a rectangular seat structure, an arc-shaped clamping groove is formed in the inner side face of the clamp iron (12), an air cavity (22) is formed in the clamp iron (12), an air pipe connecting port (23) is formed in one end of the air cavity (22), the end portion of the air pipe connecting port (23) is connected with air pumping equipment through an air pipe, an adsorption cavity (24) is formed in the surface of the arc-shaped clamping groove of the clamp iron (12), the adsorption cavity (24) is communicated with the air cavity (22), a rubber ring (25) is fixedly connected to the port position of the adsorption cavity (24) in an adhesive mode, the outer end face of the rubber ring (25) is an arc-shaped face, and the arc-shaped value of the arc-shaped face is matched with the arc-shaped value of the outer side wall of the measuring stator (17).
8. The internal helical curvature measuring machine according to claim 7, wherein: an annular plate (26) is integrally formed on the inner side wall of the adsorption cavity (24), a dust screen (27) is arranged on the annular plate (26), and the dust screen (27) is a high-density mesh nylon gauze.
9. The internal helical curvature measuring machine according to claim 8, wherein: the cast iron worktable is characterized in that a positioning hole is formed in the cast iron worktable (1), the chuck (4) clamps the sensor supporting rod (13) through the locking mechanism (4), the sensor supporting rod (13) is matched with the displacement sensor (14), and the sensor supporting rod (13) is clamped through the clamping position of the chuck (4), so that the sensor supporting rod (13) has different displacement amounts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634727.5A CN113340233A (en) | 2021-06-08 | 2021-06-08 | Internal spiral curved surface measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634727.5A CN113340233A (en) | 2021-06-08 | 2021-06-08 | Internal spiral curved surface measuring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113340233A true CN113340233A (en) | 2021-09-03 |
Family
ID=77474633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110634727.5A Pending CN113340233A (en) | 2021-06-08 | 2021-06-08 | Internal spiral curved surface measuring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113340233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114850913A (en) * | 2022-05-30 | 2022-08-05 | 嘉善佰睿新材料有限公司 | Clamping mechanism of hardware product production lathe |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382422A (en) * | 2008-10-16 | 2009-03-11 | 上海交通大学 | Internal contour outline automatic detection system for pipe-shaped parts |
| CN201382775Y (en) * | 2009-04-10 | 2010-01-13 | 周前飞 | Measuring table for internal diameter and depth of deep hole |
| CN103302553A (en) * | 2012-03-08 | 2013-09-18 | 盐城市亨通机床厂 | High-precision multifunctional intelligent machine tool |
| CN106091961A (en) * | 2016-05-25 | 2016-11-09 | 天津工业大学 | High-rate laser inner diameter measurement system |
| CN205940532U (en) * | 2016-08-16 | 2017-02-08 | 南京雄豹精密机械有限公司 | Lead screw axiality detection device |
| CN108213549A (en) * | 2018-01-02 | 2018-06-29 | 深圳市晟祥知识产权有限公司 | A kind of construction tubular object extruding cutter device |
| JP2018146321A (en) * | 2017-03-03 | 2018-09-20 | 本田技研工業株式会社 | Non-contact type inner diameter measurement device |
| CN110296664A (en) * | 2019-08-01 | 2019-10-01 | 西京学院 | A kind of root canal file outer diameter and taper automatic detection device |
| CN110906876A (en) * | 2019-12-06 | 2020-03-24 | 山西迪迈沃科光电工业有限公司 | Non-contact extreme method inner diameter detection method and device |
| CN111015271A (en) * | 2019-11-19 | 2020-04-17 | 湖州吴兴珀莱机械厂 | Clamping device is used in steel pipe production |
| CN212158417U (en) * | 2020-06-18 | 2020-12-15 | 潍坊钰城机械有限公司 | Device for detecting inner diameter roundness of groove pipe fitting |
| CN112344889A (en) * | 2020-12-09 | 2021-02-09 | 东莞市夯牛机电科技有限公司 | Roughness detection device is used in processing of cylinder outer casing |
-
2021
- 2021-06-08 CN CN202110634727.5A patent/CN113340233A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382422A (en) * | 2008-10-16 | 2009-03-11 | 上海交通大学 | Internal contour outline automatic detection system for pipe-shaped parts |
| CN201382775Y (en) * | 2009-04-10 | 2010-01-13 | 周前飞 | Measuring table for internal diameter and depth of deep hole |
| CN103302553A (en) * | 2012-03-08 | 2013-09-18 | 盐城市亨通机床厂 | High-precision multifunctional intelligent machine tool |
| CN106091961A (en) * | 2016-05-25 | 2016-11-09 | 天津工业大学 | High-rate laser inner diameter measurement system |
| CN205940532U (en) * | 2016-08-16 | 2017-02-08 | 南京雄豹精密机械有限公司 | Lead screw axiality detection device |
| JP2018146321A (en) * | 2017-03-03 | 2018-09-20 | 本田技研工業株式会社 | Non-contact type inner diameter measurement device |
| CN108213549A (en) * | 2018-01-02 | 2018-06-29 | 深圳市晟祥知识产权有限公司 | A kind of construction tubular object extruding cutter device |
| CN110296664A (en) * | 2019-08-01 | 2019-10-01 | 西京学院 | A kind of root canal file outer diameter and taper automatic detection device |
| CN111015271A (en) * | 2019-11-19 | 2020-04-17 | 湖州吴兴珀莱机械厂 | Clamping device is used in steel pipe production |
| CN110906876A (en) * | 2019-12-06 | 2020-03-24 | 山西迪迈沃科光电工业有限公司 | Non-contact extreme method inner diameter detection method and device |
| CN212158417U (en) * | 2020-06-18 | 2020-12-15 | 潍坊钰城机械有限公司 | Device for detecting inner diameter roundness of groove pipe fitting |
| CN112344889A (en) * | 2020-12-09 | 2021-02-09 | 东莞市夯牛机电科技有限公司 | Roughness detection device is used in processing of cylinder outer casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114850913A (en) * | 2022-05-30 | 2022-08-05 | 嘉善佰睿新材料有限公司 | Clamping mechanism of hardware product production lathe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212350517U (en) | Processing device for tangential key groove of motor shaft | |
| CN113340233A (en) | Internal spiral curved surface measuring machine | |
| CN215847312U (en) | Multi-station inner hole grinding machine | |
| CN216717305U (en) | Three-coordinate detection device for precision machining | |
| CN214149169U (en) | Train wheel pair roundness detector | |
| CN113400211A (en) | Flexible white automobile body workpiece placing table | |
| CN112299075A (en) | Deviation-rectifying and clamping integrated winding and unwinding structure | |
| CN219521060U (en) | Welding fixture for photosensitive diode | |
| CN220472587U (en) | Gear shifting rocker arm seat precision detection device | |
| CN219457574U (en) | Wafer aligner fixture | |
| CN220708363U (en) | Non-contact roughness measuring instrument applied to surface profile of revolution body | |
| CN217465821U (en) | Linkage product rotating structure of index plate detector | |
| CN218349347U (en) | Positioning checking fixture for automobile seat machining | |
| CN218253709U (en) | High accuracy anchor clamps for mould manufacturing | |
| CN220437996U (en) | Cloth intensity detection equipment with accurate positioning function | |
| CN213796095U (en) | Clamp for thin-wall metal part machining | |
| CN213301293U (en) | Instrument automatic detection positioning device with good clamping effect | |
| CN212390977U (en) | Bearing width detector | |
| CN220380435U (en) | Length measuring device for motor shaft production | |
| CN220625104U (en) | Measuring ruler | |
| CN216081447U (en) | Bevel edge auxiliary gauge block | |
| CN219617562U (en) | Waterproof sputtering pitching adjustable vacuum adsorption platform | |
| CN216620962U (en) | Screw rod meshing clearance testing arrangement | |
| CN216398989U (en) | Steel pipe internal surface grinding device | |
| CN218614827U (en) | Rotary processing table and wafer processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210903 |
|
| RJ01 | Rejection of invention patent application after publication |