CN115031607A - Precision detection device for automobile chassis welding fine positioning device - Google Patents
Precision detection device for automobile chassis welding fine positioning device Download PDFInfo
- Publication number
- CN115031607A CN115031607A CN202210453211.5A CN202210453211A CN115031607A CN 115031607 A CN115031607 A CN 115031607A CN 202210453211 A CN202210453211 A CN 202210453211A CN 115031607 A CN115031607 A CN 115031607A
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- Prior art keywords
- connecting axle
- precision
- automobile chassis
- fine positioning
- seat
- 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.)
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- 238000001514 detection method Methods 0.000 title claims abstract description 61
- 238000003466 welding Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 2
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 238000012031 short term test Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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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
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention relates to a precision detection device for a welding and fine positioning appliance of an automobile chassis, which is characterized by comprising the following components: detection platform, the location base, first connecting axle, the second connecting axle, the third connecting axle, the fourth connecting axle, the seated bearing, a fixed base, the measuring seat, the connecting seat, the measuring stick subassembly, on detection platform, in different utensil measuring mechanism's location region, through the locating pin, the location face carries out measuring mechanism nested formula and changes and fix a position, and then realize the measurement of the smart location utensil of different grade type, can regard as utensil precision benchmark, after the utensil precision takes place the deviation, can carry out the precision adjustment, resume, satisfy the user demand, realize the short-term test of smart location utensil, satisfy periodic precision detection demand.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a precision detection device for an automobile chassis welding fine positioning device.
Background
In the field of automobile manufacturing, along with continuous and deep application of intelligence and automation technology, the application of a robot vision grabbing technology in a welding manufacturing scene is more and more extensive, and the requirements on the precision and the stability of an appliance are high. Precision of the fine positioning device influences the grabbing success rate of the manipulator, and precision deviation causes the production process to stop, and high equipment damage risks exist.
Document 1: a precision detection method and a device for a station tool comprise the following steps: under the condition that the reference station appliance is fixed at the preset position, first measurement information of the reference station appliance relative to the preset position is obtained; under the condition that the station appliance to be adjusted is fixed at the preset position, second measurement information of the station appliance to be adjusted relative to the preset position is obtained; determining error information of the station appliance to be adjusted according to the first measurement information and the second measurement information; judging whether the error information meets a preset threshold condition or not; and controlling the prompting device to prompt warning information when the error information meets the threshold value condition. Therefore, when the precision of the station appliances to be adjusted is ensured, the positioning reference can be unified, and the consistency of the station appliances is improved. Meanwhile, the efficiency of precision detection can be improved.
Document 2: the utility model provides a new energy automobile detection utensil convenient to adjust, includes testing platform, testing platform's upper end external fixed surface installs notice board, card wire casing and socket, testing platform's one side external fixed surface installs the second bracing piece, and testing platform's opposite side external fixed surface installs first bracing piece, one side external fixed surface of second bracing piece has the horizontal pole, and the rear end external fixed surface of horizontal pole installs the fixed plate, one side surface of horizontal pole is provided with first spout. The conveniently-adjusted new energy automobile detector is provided with the sliding mechanism, the telescopic shaft, the clamping groove and the binding belt, so that automobile parts can be detected in all directions by the detector, the height of the stand column can be adjusted, the detection platform is kept balanced, the clamping groove and the binding belt are matched for use, different types of detectors can be conveniently installed, and a better use prospect is brought.
Document 3: a battery bottom plate fine positioning device comprises a protective column fixing plate, supporting protective columns, a separation block, a guide column, a push-pull type rapid clamp, a supporting underframe, a base fixing frame, an angle frame and a guide column fixing plate, wherein the angle frame is installed at four corners of the base fixing frame; the workpiece is supported by the aid of the top extension of the separation blocks, and the workpiece is protected layer by layer, so that the workpiece is easy and flexible to store; the workpiece is prevented from falling and deviating, and the operation is simple and rapid through the limit of the push-pull type rapid clamp; the workpiece can be universally used for workpieces of different specifications by deleting and increasing the limiting columns.
At present, manual visual detection or portable three-coordinate detection is mostly adopted for detecting the precision of a welding and fine positioning device of an automobile chassis, and the detection method has higher requirements on cost investment and use environment; meanwhile, the detection preparation and detection period is long, and a convenient manual detection method is not available, and the following problems exist:
1. the artificial visual observation can only identify the obvious abnormal deformation of the appliance, and the occurrence probability and frequency of the problems are low. The problems of precision deviation of an appliance positioning mechanism, a guide mechanism, a support mechanism and the like cannot be identified;
2. the three-coordinate detection period is long, the requirement for precision detection of a large number of precise positioning appliances cannot be met, cyclic detection and verification in a certain period cannot be met, and meanwhile, the appliance maintenance cost is greatly increased due to the input of a large number of detection resources.
Disclosure of Invention
Aiming at the problems in the prior art, the invention creatively designs the precision detection device for the welding fine positioning appliance of the automobile chassis.
The technical scheme adopted for realizing the invention is as follows: the utility model provides an automobile chassis welds dress smart positioning utensil precision detection device, characterized by, it includes: the detection device comprises a detection platform 29, a positioning base 30, a first connecting shaft 2, a second connecting shaft 3, a third connecting shaft 4, a fourth connecting shaft 5, a bearing with a seat 16, a fixed seat, a measuring seat, a connecting seat and a measuring rod assembly, wherein the detection platform 29 is provided with the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5, the first connecting shaft 2 and the third connecting shaft 4 are symmetrically arranged, the second connecting shaft 3 and the fourth connecting shaft 5 are symmetrically arranged, the shaft heads at the two ends of the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5 are fixedly connected with the detection platform 29 by the same bearing with a seat 16, the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5 are respectively positioned and clamped by the fixed seat, and the measuring rod assembly is fixedly connected with the measuring seat, measuring rod subassembly and first connecting axle 2, second connecting axle 3, third connecting axle 4 and fourth connecting axle 5 pass through connecting seat fixed connection four the same location base 30 of equipartition on the testing platform 29, four the same location base 30 settings are in first connecting axle 2, second connecting axle 3, third connecting axle 4 and the 5 detection areas of fourth connecting axle.
Further, the positioning base 30 is height-adjustable.
Further, a transition piece 11 is arranged between the bearing with seat 16 and the detection platform 29.
Further, the fixing base includes: fourth connecting block 8, fifth connecting block 9, sixth connecting block 10, first gasket 12, fifth connecting block 9 and sixth connecting block 10 fixed connection, fourth connecting block 8 and fifth connecting block 9 fixed connection set up first gasket 12 between fourth connecting block 8 and fifth connecting block 9.
Further, the measuring seat comprises: the connecting structure comprises a seventh connecting block 13 and a limiting block 14, wherein a group of limiting blocks 14 are arranged on the seventh connecting block 13.
Furthermore, the measuring rod assembly structure is an aluminum profile.
Furthermore, the measuring rod assembly is made of aluminum magnesium alloy, titanium alloy and carbon fiber.
Furthermore, the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5 are made of No. 45 steel.
Furthermore, the detection platform 29 is made of cast iron.
Further, the seated bearing 16 is a self-lubricating bearing seat.
The precision detection device for the automobile chassis welding fine positioning device has the beneficial effects that:
1. a precision detection device for a welding fine positioning appliance of an automobile chassis is matched with a professional measuring tool, can realize the measurement of the precision state of the fine positioning appliance, and meets the precision detection requirement;
2. a precision detection device for a welding fine positioning appliance of an automobile chassis can be used as an appliance precision reference, and can perform precision adjustment and recovery after the appliance precision deviates to meet the use requirement;
3. the utility model provides a vehicle chassis welds dress smart positioning utensil precision detection device, can realize the short-term test of smart positioning utensil, satisfies periodic precision detection demand.
Drawings
FIG. 1 is a three-dimensional schematic diagram of an accuracy detection device of a welding fine positioning tool of an automobile chassis;
FIG. 2 is a schematic view of detail A of FIG. 1;
FIG. 3 is a three-dimensional schematic view of detail B of FIG. 1;
FIG. 4 is a three-dimensional schematic view of detail C of FIG. 1;
FIG. 5 is a three-dimensional schematic view of detail D of FIG. 1;
FIG. 6 is a flow chart of the measurement operation of the precision detection device for the welding fine positioning tool of the automobile chassis;
FIG. 7 is a schematic detection diagram of an accuracy detection device for a welding fine positioning apparatus of an automobile chassis in an embodiment;
in the figure: 1. the bearing comprises a first connecting block, 2, a first connecting shaft, 3, a second connecting shaft, 4, a third connecting shaft, 5, a fourth connecting shaft, 6, a second connecting block, 7, a third connecting block, 8, a fourth connecting block, 9, a fifth connecting block, 10, a sixth connecting block, 11, a transition sheet, 12, a first gasket, 13, a seventh connecting block, 14, a limiting block, 15, a second gasket, 16, a seated bearing, 17, a first section bar, 18, a second section bar, 19, a third section bar, 20, a fourth section bar, 21, a fifth section bar, 22, a first connecting piece, 23, a T-shaped nut, 24, a sixth section bar, 25, an eighth connecting block, 26, a pin shaft, 27, a ninth connecting block, 28, a second connecting piece, 29, a detection platform and 30, and a positioning base.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-7 and the specific embodiments described herein, which are provided for illustration only and are not intended to limit the invention.
As shown in the attached figure 1, the precision detection device for the welding and fine positioning device of the automobile chassis comprises: the detecting platform 29 is made of 45 # steel, the structure of the measuring rod assembly is an aluminum profile, the measuring rod assembly is made of aluminum magnesium alloy, titanium alloy and carbon fiber, the detecting platform 29 is made of cast iron, the detecting platform 29 is provided with the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5, the first connecting shaft 2 and the third connecting shaft 4 are symmetrically arranged, the second connecting shaft 3 and the fourth connecting shaft 5 are symmetrically arranged, two ends of the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5 are fixedly connected with the detecting platform 29 by the same mounted bearing 16, the self-lubricating bearing seat bearing 16 is a self-lubricating bearing seat, a transition piece 11 is arranged between the self-lubricating bearing seat bearing 16 and a detection platform 29, a first connecting shaft 2, a second connecting shaft 3, a third connecting shaft 4 and a fourth connecting shaft 5 are respectively positioned and clamped by a fixing seat, a measuring rod assembly is fixedly connected with the measuring seat, the measuring rod assembly is fixedly connected with the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5 through a connecting seat, four identical positioning bases 30 are uniformly distributed on the detection platform 29, the four identical positioning bases 30 are arranged in detection areas of the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5, and the height of the positioning bases 30 is adjustable.
As shown in fig. 2, the connecting seat is the measuring rod assembly structure, and the connecting seat is fixedly connected with the first connecting shaft 2, the second connecting shaft 3, the third connecting shaft 4 and the fourth connecting shaft 5 through the second connecting block 6 and the third connecting block 7 by aluminum profiles.
As shown in fig. 3, the fixing base includes: fourth connecting block 8, fifth connecting block 9, sixth connecting block 10, first gasket 12, fifth connecting block 9 and sixth connecting block 10 fixed connection, fourth connecting block 8 and fifth connecting block 9 fixed connection set up first gasket 12 between fourth connecting block 8 and fifth connecting block 9.
As shown in fig. 4, the measuring stand 1 includes: the connecting structure comprises a seventh connecting block 13 and a limiting block 14, wherein a group of limiting blocks 14 are arranged on the seventh connecting block 13.
As shown in fig. 5, the measuring seat 2 includes: a limiting block 14, an eighth connecting block 25, a pin 26 and a ninth connecting block 27.
Referring to figures 6 and 7: taking the left threshold of the automobile chassis welding assembly as an example, the instrument precision detection is carried out according to the operation flow.
Placing an appliance ZMK-1-10-X to be detected on a detection platform through a forklift, a lifting appliance or other auxiliary mechanisms, and performing position locking with a positioning base through ball positioning at the lower part of the appliance;
secondly, selecting detection rods ZMK-01-05 corresponding to the left doorsill appliance for sequential installation, and screwing and fixing after the installation is finished;
overturning the measuring rod to a measuring limit after the installation is finished;
measuring (standard interval is 0-2.0 mm) and recording the gap of the measuring point by a measuring tool (wedge-shaped ruler with measuring precision of 0.1mm) according to the detection guide file, and adjusting the part exceeding the standard interval;
after the measurement is finished, the measuring rod is turned over and reset;
sixthly, disassembling the measuring bars ZMK-01-05 in sequence and placing the measuring bars on a measuring bar storage rack;
seventhly, the appliances on the detection platform are disassembled through a forklift, a lifting appliance or other auxiliary mechanisms.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides an automobile chassis welds dress fine positioning utensil precision measurement device, characterized by, it includes: detect platform (29), location base (30), first connecting axle (2), second connecting axle (3), third connecting axle (4), fourth connecting axle (5), rolling bearing (16), fixing base, measurement seat, connecting seat, measuring rod subassembly set up first connecting axle (2), second connecting axle (3), third connecting axle (4) and fourth connecting axle (5) on detection platform (29), first connecting axle (2) and third connecting axle (4) symmetrical arrangement, second connecting axle (3) and fourth connecting axle (5) symmetrical arrangement, the both ends of first connecting axle (2), second connecting axle (3), third connecting axle (4) and fourth connecting axle (5) spindle nose with same rolling bearing (16) and detect platform (29) fixed connection, first connecting axle (2), second connecting axle (3), Third connecting axle (4) and fourth connecting axle (5) adopt the fixing base location respectively to press from both sides tightly, measuring lever subassembly and measuring seat fixed connection, measuring lever subassembly and first connecting axle (2), second connecting axle (3), third connecting axle (4) and fourth connecting axle (5) pass through connecting seat fixed connection four the same location base (30) of equipartition on detection platform (29), four the same location base (30) set up in first connecting axle (2), second connecting axle (3), third connecting axle (4) and fourth connecting axle (5) detection area intra-territory.
2. The precision detection device for the automobile chassis welding fine positioning appliance is characterized in that the height of the positioning base (30) is adjustable.
3. The precision detection device for the automobile chassis welding fine positioning device is characterized in that a transition piece (11) is arranged between the bearing with the seat (16) and the detection platform (29).
4. The precision detection device for the automobile chassis welding fine positioning apparatus as claimed in claim 1, wherein the fixing seat comprises: fourth connecting block (8), fifth connecting block (9), sixth connecting block (10), first gasket (12), fifth connecting block (9) and sixth connecting block (10) fixed connection, fourth connecting block (8) and fifth connecting block (9) fixed connection set up first gasket (12) between fourth connecting block (8) and fifth connecting block (9).
5. The device for detecting the precision of the automobile chassis welding fine positioning appliance according to claim 1, wherein the measuring seat comprises: the connecting structure comprises a seventh connecting block (13) and limiting blocks (14), wherein a group of limiting blocks (14) are arranged on the seventh connecting block (13).
6. The device for detecting the precision of the automobile chassis welding fine positioning device according to claim 1, wherein the measuring rod assembly is made of aluminum profiles.
7. The device for detecting the precision of the welding and fine positioning device of the automobile chassis according to claim 1, wherein the measuring rod assembly is made of aluminum magnesium alloy, titanium alloy and carbon fiber.
8. The precision detection device for the automobile chassis welding fine positioning apparatus as claimed in claim 1, wherein the first connecting shaft (2), the second connecting shaft (3), the third connecting shaft (4) and the fourth connecting shaft (5) are made of No. 45 steel.
9. The precision detection device for the automobile chassis welding fine positioning device as claimed in claim 1, wherein the detection platform (29) is made of cast iron.
10. The precision detection device for the automobile chassis welding fine positioning device as claimed in claim 1, wherein the bearing (16) with the seat is a self-lubricating bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210453211.5A CN115031607A (en) | 2022-04-27 | 2022-04-27 | Precision detection device for automobile chassis welding fine positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210453211.5A CN115031607A (en) | 2022-04-27 | 2022-04-27 | Precision detection device for automobile chassis welding fine positioning device |
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| Publication Number | Publication Date |
|---|---|
| CN115031607A true CN115031607A (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210453211.5A Pending CN115031607A (en) | 2022-04-27 | 2022-04-27 | Precision detection device for automobile chassis welding fine positioning device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007305696A (en) * | 2006-05-09 | 2007-11-22 | Nsk Ltd | Accuracy measuring method of positioning apparatus |
| CN201152821Y (en) * | 2008-02-18 | 2008-11-19 | 上海宝钢设备检修有限公司 | Assay device for valve positioner |
| CN204083428U (en) * | 2014-09-16 | 2015-01-07 | 长沙力众电子科技有限责任公司 | The feedback feeler mechanism of intelligent valve positioner |
| CN110701973A (en) * | 2019-10-23 | 2020-01-17 | 深圳亿和模具制造有限公司 | Automobile mechanism part detection jig and measurement method |
| WO2020237146A1 (en) * | 2019-05-22 | 2020-11-26 | Metrotech Corporation | Underground line locator system with real time kinematic and global satellite positioning |
| US20210146551A1 (en) * | 2019-11-19 | 2021-05-20 | Institute For Information Industry | Measurement system and method for positioning accuracy of a robotic arm |
| CN214010218U (en) * | 2020-12-25 | 2021-08-20 | 龙岩山河金属制品有限公司 | High-precision automobile metal plate verification jig |
-
2022
- 2022-04-27 CN CN202210453211.5A patent/CN115031607A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007305696A (en) * | 2006-05-09 | 2007-11-22 | Nsk Ltd | Accuracy measuring method of positioning apparatus |
| CN201152821Y (en) * | 2008-02-18 | 2008-11-19 | 上海宝钢设备检修有限公司 | Assay device for valve positioner |
| CN204083428U (en) * | 2014-09-16 | 2015-01-07 | 长沙力众电子科技有限责任公司 | The feedback feeler mechanism of intelligent valve positioner |
| WO2020237146A1 (en) * | 2019-05-22 | 2020-11-26 | Metrotech Corporation | Underground line locator system with real time kinematic and global satellite positioning |
| CN110701973A (en) * | 2019-10-23 | 2020-01-17 | 深圳亿和模具制造有限公司 | Automobile mechanism part detection jig and measurement method |
| US20210146551A1 (en) * | 2019-11-19 | 2021-05-20 | Institute For Information Industry | Measurement system and method for positioning accuracy of a robotic arm |
| CN214010218U (en) * | 2020-12-25 | 2021-08-20 | 龙岩山河金属制品有限公司 | High-precision automobile metal plate verification jig |
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