CN114509348B - Pressure loading device for testing stress corrosion performance of material - Google Patents
Pressure loading device for testing stress corrosion performance of material Download PDFInfo
- Publication number
- CN114509348B CN114509348B CN202210129025.6A CN202210129025A CN114509348B CN 114509348 B CN114509348 B CN 114509348B CN 202210129025 A CN202210129025 A CN 202210129025A CN 114509348 B CN114509348 B CN 114509348B
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- supporting plate
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- 239000000463 material Substances 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims abstract description 13
- 238000005260 corrosion Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 title claims abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a pressure loading device for testing stress corrosion performance of materials, which comprises a bottom plate, a buffer structure for preventing the materials from being damaged directly, a clamping structure for preventing the materials from being deviated and an adjusting structure for accelerating the working efficiency, wherein one end of the top end of the bottom plate is provided with a stand column, a supporting plate is arranged above the bottom plate at one end of the stand column, the buffer structure is arranged between the supporting plate and the bottom plate, a placing plate is arranged at the central position of the top end of the supporting plate, the clamping structure is arranged in the supporting plate at two sides of the placing plate, the top end of the stand column is provided with a top plate, and the central position of the top end of the top plate is provided with a driving motor. According to the invention, the adjusting rod is rotated, the sliding plate can slide in the limiting groove under the cooperation of the threads of the supporting plate, the clamping plates are driven to move until the two clamping plates clamp materials, and the structure is beneficial to improving the applicability of the device.
Description
Technical Field
The invention relates to the technical field of pressure loading, in particular to a pressure loading device for testing stress corrosion performance of materials.
Background
After various materials are processed and produced, various performance tests are required to be carried out on the materials, so that whether the materials meet the standard or not is detected, whether the quality is qualified or not is ensured, one of the stress corrosion performance tests is carried out, a pressure loading device is required, and the existing pressure loading device has a plurality of defects.
The first and the traditional pressure loading devices do not have a multi-angle pressure testing function, and only partial positions of materials can be subjected to pressure loading, so that the applicability of the devices is poor;
secondly, the traditional pressure loading device cannot quickly fix the material, so that the material is easy to deviate when the pressure is loaded;
thirdly, the traditional pressure loading device does not have a good protection function, so that the device is directly subjected to rigid pressure, the material is easy to directly damage, and the detection result is inaccurate.
Disclosure of Invention
The invention aims to provide a pressure loading device for testing stress corrosion performance of a material, which aims to solve the problems that the applicability is poor, the material cannot be quickly fixed and the material does not have a good protection function in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the pressure loading device for testing the stress corrosion performance of the material comprises a bottom plate, a buffer structure for preventing the material from being directly damaged, a clamping structure for preventing the material from being deviated and an adjusting structure for accelerating the working efficiency;
an upright post is arranged at one end of the top end of the bottom plate, a supporting plate is arranged above the bottom plate at one end of the upright post, and the buffer structure is arranged between the supporting plate and the bottom plate;
a placing plate is arranged at the central position of the top end of the supporting plate, and the clamping structures are arranged in the supporting plates at two sides of the placing plate;
the top of stand installs the roof, and the top central point department of roof installs driving motor, the transfer line is installed to driving motor's bottom, and the bottom of transfer line runs through the below that the roof inside extends to the roof, the disc is installed to the bottom of transfer line, the spout has been seted up to the inside of roof, and the inside both sides of spout all are provided with the slider, the bottom of slider all is connected with the movable rod, even board is all installed to the both sides of disc bottom, and the regulation structure sets up in the bottom of even board.
Preferably, the adjusting structure comprises an installation box, the installation box sets up in the bottom of linking the board, and installs servo motor in one side of installation box, the lead screw is installed to one side of servo motor, one side of lead screw runs through to the inside of installation box, and one side of lead screw is connected with the inner wall of installation box through the pivot, the inside lead screw outer wall cover of installation box is equipped with the sleeve, and installs the inside lead screw below of installation box and transversely installs the gag lever post through the sleeve, the cylinder is installed to telescopic bottom, and the clamp plate is installed to the bottom of cylinder.
Preferably, the sleeve and the screw rod are connected through threads, and two sides of the limiting rod are respectively connected with the inner wall of the mounting box.
Preferably, the bottom ends of the movable rods extend between the top plate and the disc, and the bottom ends of the movable rods are connected with the disc.
Preferably, the buffer structure includes buffer tank, guide arm, buffer spring and pressure sensor, the buffer tank sets up in the inside central point department of bottom plate, and the top of buffer tank extends to the top of bottom plate, the bottom of backup pad evenly is provided with six pressure sensor, and pressure sensor's bottom all is connected with the guide arm, the bottom of guide arm all runs through to the inside of buffer tank, the guide arm outer wall between buffer tank and the pressure sensor all overlaps and is equipped with buffer spring, and buffer spring's top and bottom respectively with buffer tank and pressure sensor welding.
Preferably, the clamping structure comprises a clamping plate, an adjusting rod, a limiting groove and a sliding plate, wherein the clamping plate is arranged on the top end of a supporting plate on two sides of the placing plate, the limiting groove is formed in the supporting plate on two sides of the placing plate, the sliding plate is arranged in the limiting groove, one side, far away from the placing plate, of the sliding plate is connected with the adjusting rod through a rotating shaft, one side of the adjusting rod is extended to one side of the supporting plate, and the adjusting rod is connected with the supporting plate through threads.
Preferably, the top ends of the supporting plates are connected with the clamping plates through the sliding plates, and the clamping plates form a sliding structure with the supporting plates through the sliding plates.
Compared with the prior art, the invention has the beneficial effects that:
(1) Through being provided with regulation pole, backup pad, slide and spacing groove, the staff rotates the regulation pole, under the cooperation of backup pad screw thread, can make the slide in the spacing inslot portion, drive splint removal, until two splint accomplish the centre gripping with the material can, this structure has realized the quick fixed function to the material;
(2) The servo motor can be started to work through the arrangement of the servo motor, the screw rod and the sleeve, the screw rod rotates, the sleeve can transversely move along the limiting rod under the cooperation of the screw threads of the sleeve, the driving motor is started to work, the driving rod rotates, the disc rotates, the direction of the mounting box can be regulated, and pressure loading can be realized in various places of materials in an auxiliary mode, and the structure achieves the function of fully loading the materials;
(3) Through being provided with backup pad, pressure sensor, guide arm and buffer tank, the material receives the rigidity force for the backup pad takes place to remove, extrudes pressure sensor, makes the guide arm remove to the buffer tank inside, extrudes buffer spring and takes place deformation, and the increase buffering can prevent that the material from directly receiving the rigidity force to damage, and this structure has improved the safeguard function of device.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the combined bottom structure of the disk and top plate of the present invention;
FIG. 3 is a schematic top cross-sectional view of the support plate of the present invention;
fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present invention.
In the figure: 1. a limit rod; 2. a screw rod; 3. a connecting plate; 4. a movable rod; 5. a slide block; 6. a transmission rod; 7. a driving motor; 8. a buffer structure; 801. a buffer tank; 802. a guide rod; 803. a buffer spring; 804. a pressure sensor; 9. a clamping structure; 901. a clamping plate; 902. an adjusting rod; 903. a limit groove; 904. a slide plate; 10. a disc; 11. a chute; 12. a top plate; 13. a sleeve; 14. a servo motor; 15. a mounting box; 16. a cylinder; 17. a pressing plate; 18. a bottom plate; 19. a support plate; 20. a column; 21. the plate is placed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: referring to fig. 1-4, a pressure loading device for testing stress corrosion performance of a material includes a bottom plate 18, a buffer structure 8 for preventing the material from being damaged directly, a clamping structure 9 for preventing the material from being deviated, and an adjusting structure for accelerating the working efficiency;
a stand column 20 is arranged at one end of the top end of the bottom plate 18, a supporting plate 19 is arranged above the bottom plate 18 at one end of the stand column 20, and a buffer structure 8 is arranged between the supporting plate 19 and the bottom plate 18;
a placing plate 21 is arranged at the central position of the top end of the supporting plate 19, and the clamping structures 9 are arranged inside the supporting plate 19 at two sides of the placing plate 21;
the roof 12 is installed on the top of stand 20, and the top central point department of roof 12 installs driving motor 7, this driving motor 7's model can be 86BL, driving lever 6 is installed to driving motor 7's bottom, and the bottom of driving lever 6 runs through the inside below that extends to roof 12 of roof 12, disc 10 is installed to driving lever 6's bottom, the inside spout 11 of seting up of roof 12, and the inside both sides of spout 11 all are provided with slider 5, the bottom of slider 5 all is connected with movable rod 4, link plate 3 is all installed to the both sides of disc 10 bottom, and adjust the structure setting in the bottom of link plate 3.
Referring to fig. 1-4, a pressure loading device for testing stress corrosion performance of a material further comprises an adjusting structure, the adjusting structure comprises an installing box 15, the installing box 15 is arranged at the bottom end of the connecting plate 3, a servo motor 14 is installed at one side of the installing box 15, the type of the servo motor 14 can be RDX-201-V36F5E13, a screw rod 2 is installed at one side of the servo motor 14, one side of the screw rod 2 penetrates through the inside of the installing box 15, one side of the screw rod 2 is connected with the inner wall of the installing box 15 through a rotating shaft, a sleeve 13 is sleeved on the outer wall of the screw rod 2 inside the installing box 15, a limit rod 1 is transversely installed below the screw rod 2 inside the installing box 15 through the sleeve 13, a cylinder 16 is installed at the bottom end of the sleeve 13, the type of the cylinder 16 can be SC63, and a pressing plate 17 is installed at the bottom end of the cylinder 16;
the sleeve 13 is connected with the screw rod 2 through threads, and two sides of the limiting rod 1 are respectively connected with the inner wall of the mounting box 15;
the bottom ends of the movable rods 4 extend between the top plate 12 and the disc 10, and the bottom ends of the movable rods 4 are connected with the disc 10;
specifically, as shown in fig. 1 and 2, when the mechanism is used, the servo motor 14 is started to work, the screw rod 2 rotates, the sleeve 13 can transversely move along the limit rod 1 under the cooperation of the threads of the sleeve 13, the pressure loading position of the material is changed, the driving motor 7 is started to work, the transmission rod 6 rotates, the disc 10 rotates, and the direction of the installation box 15 can be adjusted to assist in realizing pressure loading on various places of the material.
Example 2: the buffer structure 8 comprises a buffer box 801, a guide rod 802, a buffer spring 803 and a pressure sensor 804, wherein the buffer box 801 is arranged at the central position inside a bottom plate 18, the top end of the buffer box 801 extends to the upper side of the bottom plate 18, six pressure sensors 804 are uniformly arranged at the bottom end of a supporting plate 19, the bottom ends of the pressure sensors 804 are connected with the guide rod 802, the bottom ends of the guide rod 802 penetrate into the buffer box 801, the buffer spring 803 is sleeved on the outer wall of the guide rod 802 between the buffer box 801 and the pressure sensors 804, and the top end and the bottom end of the buffer spring 803 are welded with the buffer box 801 and the pressure sensors 804 respectively;
specifically, as shown in fig. 1 and 4, when the mechanism is used, the material is subjected to rigid force, so that the supporting plate 19 moves, the pressure sensor 804 is pressed, the guide rod 802 moves towards the inside of the buffer box 801, the buffer spring 803 is pressed to deform, and the buffer is increased, so that the material can be prevented from being damaged directly by the rigid force.
Example 3: the clamping structure 9 comprises a clamping plate 901, an adjusting rod 902, a limiting groove 903 and a sliding plate 904, wherein the clamping plate 901 is arranged at the top end of a supporting plate 19 at two sides of a placing plate 21, the limiting groove 903 is formed in the supporting plate 19 at two sides of the placing plate 21, the sliding plate 904 is arranged in the limiting groove 903, one side of the sliding plate 904 far away from the placing plate 21 is connected with the adjusting rod 902 through a rotating shaft, one side of the adjusting rod 902 extends to one side of the supporting plate 19, and the adjusting rod 902 is connected with the supporting plate 19 through threads;
the top ends of the supporting plates 19 are connected with the clamping plates 901 through the sliding plates 904, and the clamping plates 901 and the supporting plates 19 form a sliding structure through the sliding plates 904;
specifically, as shown in fig. 1 and 3, when the mechanism is used, the adjusting rod 902 is rotated, and under the cooperation of the threads of the supporting plate 19, the sliding plate 904 can slide in the limiting groove 903 to drive the clamping plates 901 to move until the two clamping plates 901 clamp the material.
Working principle: when the device is used, firstly, a worker firstly places a material on the top end of the placing plate 21, then rotates the adjusting rod 902, under the cooperation of the threads of the supporting plate 19, the sliding plate 904 can slide in the limiting groove 903 to drive the clamping plates 901 to move until the two clamping plates 901 clamp the material, and otherwise, the material can be taken out quickly.
Then, when pressure loading is carried out, a worker starts the air cylinder 16 to work, the pressing plate 17 can be made to move downwards until the pressing plate 17 is in contact with the material, the pressure sensor 804 receives a signal, the pressure loading can be carried out at a terminal, meanwhile, the servo motor 14 can be started to work, the screw rod 2 rotates, the sleeve 13 can be made to transversely move along the limiting rod 1 under the cooperation of the threads of the sleeve 13, the pressure loading position of the material is changed, the driving motor 7 is started to work, the transmission rod 6 rotates, the disc 10 rotates, and the direction of the installation box 15 can be adjusted to assist in realizing the pressure loading on each place of the material.
Finally, in the pressure loading process, the material is subjected to rigid force, so that the supporting plate 19 moves, the pressure sensor 804 is extruded, the guide rod 802 moves towards the inside of the buffer box 801, the buffer spring 803 is extruded to deform, the buffer is increased, and the material can be prevented from being damaged by the rigid force directly.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A pressure loading device for testing the stress corrosion performance of a material, comprising a base plate (18), characterized in that: the device also comprises a buffer structure (8) for preventing the material from being damaged directly, a clamping structure (9) for preventing the material from shifting and an adjusting structure for accelerating the working efficiency;
an upright post (20) is arranged at one end of the top end of the bottom plate (18), a supporting plate (19) is arranged above the bottom plate (18) at one end of the upright post (20), and the buffer structure (8) is arranged between the supporting plate (19) and the bottom plate (18);
a placing plate (21) is arranged at the central position of the top end of the supporting plate (19), and the clamping structures (9) are arranged inside the supporting plate (19) at two sides of the placing plate (21);
the top of stand (20) is installed roof (12), and top central point department of roof (12) installs driving motor (7), transfer line (6) are installed to the bottom of driving motor (7), and the bottom of transfer line (6) runs through the below that roof (12) inside extends to roof (12), disc (10) are installed to the bottom of transfer line (6), spout (11) have been seted up to roof (12) inside, and the both sides of spout (11) inside all are provided with slider (5), the bottom of slider (5) all is connected with movable rod (4), link plate (3) are all installed to the both sides of disc (10) bottom, and the adjusting structure sets up in the bottom of link plate (3);
the adjusting structure comprises an installing box (15), the installing box (15) is arranged at the bottom end of the connecting plate (3), a servo motor (14) is arranged on one side of the installing box (15), a screw rod (2) is arranged on one side of the servo motor (14), one side of the screw rod (2) penetrates through the inside of the installing box (15), one side of the screw rod (2) is connected with the inner wall of the installing box (15) through a rotating shaft, a sleeve (13) is sleeved on the outer wall of the screw rod (2) inside the installing box (15), a limit rod (1) is transversely arranged below the screw rod (2) inside the installing box (15) through the sleeve (13), an air cylinder (16) is arranged at the bottom end of the sleeve (13), and a pressing plate (17) is arranged at the bottom end of the air cylinder (16);
the buffer structure (8) comprises a buffer box (801), a guide rod (802), a buffer spring (803) and a pressure sensor (804), wherein the buffer box (801) is arranged at the central position inside a bottom plate (18), the top end of the buffer box (801) extends to the upper part of the bottom plate (18), six pressure sensors (804) are uniformly arranged at the bottom end of a supporting plate (19), the bottom ends of the pressure sensors (804) are respectively connected with the guide rod (802), the bottom ends of the guide rods (802) are respectively penetrated into the buffer box (801), the buffer spring (803) is sleeved on the outer wall of the guide rod (802) between the buffer box (801) and the pressure sensor (804), and the top end and the bottom end of the buffer spring (803) are respectively welded with the buffer box (801) and the pressure sensor (804);
clamping structure (9) are including splint (901), regulation pole (902), spacing groove (903) and slide (904), splint (901) all set up in backup pad (19) top of placing board (21) both sides, and spacing groove (903) all set up inside backup pad (19) of placing board (21) both sides, the inside of spacing groove (903) all is provided with slide (904), and slide (904) are kept away from one side of placing board (21) and all are connected with regulation pole (902) through the pivot, one side of regulation pole (902) all extends to one side of backup pad (19), and regulation pole (902) and backup pad (19) are connected through the screw thread.
2. The pressure loading device for testing the stress corrosion performance of a material according to claim 1, wherein: the sleeve (13) is connected with the screw rod (2) through threads, and two sides of the limiting rod (1) are respectively connected with the inner wall of the mounting box (15).
3. The pressure loading device for testing the stress corrosion performance of a material according to claim 1, wherein: the bottom ends of the movable rods (4) extend between the top plate (12) and the disc (10), and the bottom ends of the movable rods (4) are connected with the disc (10).
4. The pressure loading device for testing the stress corrosion performance of a material according to claim 1, wherein: the top ends of the supporting plates (19) are connected with the clamping plates (901) through the sliding plates (904), and the clamping plates (901) and the supporting plates (19) form a sliding structure through the sliding plates (904).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210129025.6A CN114509348B (en) | 2022-02-11 | 2022-02-11 | Pressure loading device for testing stress corrosion performance of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210129025.6A CN114509348B (en) | 2022-02-11 | 2022-02-11 | Pressure loading device for testing stress corrosion performance of material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114509348A CN114509348A (en) | 2022-05-17 |
| CN114509348B true CN114509348B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210129025.6A Active CN114509348B (en) | 2022-02-11 | 2022-02-11 | Pressure loading device for testing stress corrosion performance of material |
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| Country | Link |
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| CN (1) | CN114509348B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2020102502A4 (en) * | 2020-04-17 | 2020-11-19 | Kunshan Zhenhe Mould Hardware Machinery Co., Ltd. | Equipment for automatically detecting strength of router shell |
| CN213337171U (en) * | 2020-11-04 | 2021-06-01 | 福建众鑫不锈钢有限公司 | Vickers hardness meter for stainless steel coil with dustproof function |
| CN213970064U (en) * | 2020-12-15 | 2021-08-17 | 大连佳诚日田科技发展有限公司 | Stable clamping mechanism |
| CN214702189U (en) * | 2021-05-11 | 2021-11-12 | 湖南省福城创景环保项目管理有限公司 | Plank clamping device for environmental protection engineering |
| CN214922577U (en) * | 2021-07-16 | 2021-11-30 | 海宁市上通轴承有限公司 | Three-fork shaft positioning tool clamp |
-
2022
- 2022-02-11 CN CN202210129025.6A patent/CN114509348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2020102502A4 (en) * | 2020-04-17 | 2020-11-19 | Kunshan Zhenhe Mould Hardware Machinery Co., Ltd. | Equipment for automatically detecting strength of router shell |
| CN213337171U (en) * | 2020-11-04 | 2021-06-01 | 福建众鑫不锈钢有限公司 | Vickers hardness meter for stainless steel coil with dustproof function |
| CN213970064U (en) * | 2020-12-15 | 2021-08-17 | 大连佳诚日田科技发展有限公司 | Stable clamping mechanism |
| CN214702189U (en) * | 2021-05-11 | 2021-11-12 | 湖南省福城创景环保项目管理有限公司 | Plank clamping device for environmental protection engineering |
| CN214922577U (en) * | 2021-07-16 | 2021-11-30 | 海宁市上通轴承有限公司 | Three-fork shaft positioning tool clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114509348A (en) | 2022-05-17 |
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