CN113588165A - Pressure sensor production detection device - Google Patents
Pressure sensor production detection device Download PDFInfo
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- CN113588165A CN113588165A CN202110944496.8A CN202110944496A CN113588165A CN 113588165 A CN113588165 A CN 113588165A CN 202110944496 A CN202110944496 A CN 202110944496A CN 113588165 A CN113588165 A CN 113588165A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- 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
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a pressure sensor production detection device, which relates to the technical field of detection equipment and aims at solving the problems that the existing pressure sensor detection device has poor positioning effect on a sensor, is inconvenient to move and reduces the detection efficiency. The invention can automatically clamp and position the pressure sensor when detecting the pressure sensor, is convenient for moving equipment, ensures the detection quality and improves the detection efficiency.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to a production detection device for a pressure sensor.
Background
The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, relates to water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and other industries, and simply introduces the principles and the application of some common sensors.
The existing pressure sensor detection device is poor in positioning effect on the sensor, inconvenient to move and low in detection efficiency, and therefore the pressure sensor production detection device is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the defects that the existing pressure sensor detection device has poor positioning effect on a sensor, is inconvenient to move and reduces the detection efficiency, and provides a pressure sensor production detection device.
In order to achieve the purpose, the invention provides a pressure sensor production detection device, which comprises a bottom frame and is characterized in that a vertical plate is fixedly installed on one side of the top of the bottom frame, a top plate is fixedly installed on the top of the vertical plate, the top plate is positioned above the bottom frame, a hydraulic cylinder is fixedly installed on the top of the top plate, a frame body is fixedly connected onto the output end of the hydraulic cylinder, a sliding plate is installed in the frame body in a sliding and sealing manner, the sliding plate is arranged at the bottom of the frame body, a pressing plate is fixedly installed at the bottom of the sliding plate, the top of the frame body is communicated with a communicating pipe, a pressure gauge is fixedly installed at the top end of the communicating pipe, transverse plates are fixedly installed at the bottoms of two sides of the frame body, a vertical plate is fixedly installed at the bottom of each transverse plate, a round hole is formed in one end, far away from the transverse plates, of each vertical plate, and a rotating shaft is rotatably installed in the round hole, the rotating shaft extends out of the round hole, rollers are fixedly mounted at the front end and the rear end of the rotating shaft, two fixing plates are fixedly mounted at the top of the bottom frame, a connecting frame is sleeved at the outer sides of the two fixing plates in a sliding mode, a contact block is fixedly mounted at the top of the connecting frame, one side, away from the bottom frame, of the contact block is an inclined surface, the four rollers are respectively in rolling connection with the inclined surfaces of the corresponding contact blocks, a pressure spring is fixedly connected to one side, close to each other, of each of the two contact blocks, a transverse plate is fixedly mounted at one end, close to each other, of each of the two pressure springs, and a clamping plate is fixedly mounted at one side, close to each other, of each of the two transverse plates; sliding mounting has the bottom plate in the underframe, and the bottom both sides of bottom plate all are seted up flutedly, rotate on the both sides inner wall of recess and are connected with a plurality of walking wheels, and rotate on the relative both sides inner wall of underframe and be connected with same root lead screw, the lead screw outside is provided with two external screw threads opposite to soon, just the lead screw overlaps respectively on two opposite external screw threads and is equipped with a movable plate, each the bottom of movable plate all rotates and is connected with a runner, the dovetail groove has been seted up at the top of bottom plate, two the runner all with the inner wall roll connection of the bottom in dovetail groove, the one end of lead screw is extended the underframe, and fixed mounting has the hand wheel.
Preferably, fixed mounting has two dead levers on the top inner wall of underframe, two the equal fixed mounting in bottom of dead lever has the square plate, the equal fixedly connected with supporting spring in top both sides of square plate, the square groove has all been seted up to the bottom both sides of bottom plate, and two square plates are sliding connection respectively in the square groove that corresponds, and two supporting spring's top difference fixed connection is on the top inner wall of the square groove that corresponds.
Preferably, the top of the connecting frame is fixedly provided with guide plates, and the two guide plates are respectively sleeved on the outer sides of the corresponding transverse plates in a sliding manner.
Preferably, the same limiting rod is fixedly connected to the inner walls of the two sides of the connecting frame, and the two fixing plates are respectively sleeved on the outer sides of the corresponding limiting rods in a sliding manner.
Preferably, the two fixing plates are fixedly connected with connecting springs on one sides away from each other, and one ends of the two connecting springs away from each other are fixedly connected with the inner wall on one side of the corresponding connecting frame respectively.
Preferably, the both sides of slide are equal fixed mounting have the limiting plate, the spacing groove has all been seted up to the both sides of framework, and two limiting plates slide sealing connection respectively in the spacing inslot that corresponds.
Preferably, a reinforcing plate is fixedly mounted on one side of the vertical plate, and the reinforcing plate is fixedly connected to the bottom of one side of the top plate.
Preferably, the top of movable plate is fixedly mounted with a positioning plate, two guide grooves are formed in the inner wall of the top of the bottom frame, and the two positioning plates are respectively connected in the corresponding guide grooves in a sliding manner.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the pressure sensor production detection device provided by the invention, the screw rod is driven to rotate by rotating the hand wheel, the two movable plates are driven to move towards one side far away from each other, so that the two rotating wheels are driven to move towards one side far away from each other, the rotating wheels are matched with the trapezoidal grooves to drive the bottom plate to move downwards, the bottom plate drives the plurality of traveling wheels to move downwards to be in contact with the ground, so that equipment is convenient to move, then the bottom plate is reset to move upwards under the action of the supporting spring by reversely rotating the hand wheel, so that the traveling wheels are driven to move upwards to be separated from the ground, and the stability of the placement of the equipment is ensured.
2. According to the pressure sensor production detection device provided by the invention, the sensor is placed at the top of the bottom frame, the hydraulic cylinder is started to drive the frame body to move downwards, the frame body drives the two vertical plates and the four idler wheels to move downwards, the four idler wheels respectively drive the two connecting frames to move towards one side close to each other through matching with the corresponding contact blocks, and the two connecting frames respectively drive the two clamping plates to move towards one side close to each other through the corresponding pressure springs and the corresponding transverse plates so as to clamp and position the sensor.
3. According to the pressure sensor production detection device provided by the invention, the frame body downwards drives the sliding plate and the pressing plate to move downwards at the same time, when the pressing plate is contacted with the sensor, the frame body continuously moves downwards, so that the sliding plate moves upwards relative to the frame body, air in the frame body is compressed, the sensor is pressurized through high-pressure air, and the indication change of a pressure gauge is observed, so that the pressure of the sensor is detected;
4. the pressure sensor clamping device is reasonable in structural design, can automatically clamp and position the pressure sensor during detection, improves the detection efficiency while ensuring the detection quality, and is high in reliability.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a pressure sensor production detection device according to the present invention;
FIG. 2 is a schematic cross-sectional structural view of a pressure sensor production detection device according to the present invention;
FIG. 3 is a schematic structural diagram of part A of a pressure sensor production detection device according to the present invention;
FIG. 4 is a schematic structural diagram of a portion B of a pressure sensor production detection device according to the present invention;
FIG. 5 is a schematic structural diagram of a portion C of a pressure sensor production detection device according to the present invention;
wherein: 1. a bottom frame; 2. pressing a plate; 3. a clamping plate; 4. a vertical plate; 5. a top plate; 6. a hydraulic cylinder; 7. a frame body; 8. a slide plate; 9. a pressure gauge; 10. a vertical plate; 11. a roller; 12. a contact block; 13. a connecting frame; 14. a pressure spring; 15. a transverse plate; 16. a connecting spring; 17. a fixing plate; 18. a base plate; 19. a screw rod; 20. a traveling wheel; 21. a square plate; 22. moving the plate; 23. a rotating wheel.
Detailed Description
The technical solutions in the present invention are 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.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1-5, a pressure sensor production detection device comprises a bottom frame 1, a top frame 1 is in an inverted concave shape, one side of the top of the bottom frame 1 is fixedly connected with the bottom of a vertical plate 4, a top plate 5 is fixedly installed on the top of the vertical plate 4, the top plate 5 is located above the bottom frame 1, specifically, the top of the vertical plate 4 is fixedly connected with the bottom of one end of the top plate 5, and the other end of the top plate 5 is located above the bottom frame 1 and completely covers the top surface of the vertical plate 4; a hydraulic cylinder 6 is fixedly installed at the top of the top plate 5, and specifically, the hydraulic cylinder 6 is installed at the top of one end, away from the vertical plate 4, of the top plate 5; the output end of the hydraulic cylinder 6 is fixedly connected with a frame body 7, a sliding plate 8 is installed in the frame body 7 in a sliding and sealing mode, the sliding plate 8 is arranged at the bottom of the frame body 7, specifically, the frame body 7 is arranged at the bottom of one end, away from the vertical plate 4, of the top plate 5, and the output end of the hydraulic cylinder 6 penetrates through the top plate 5 and is connected with the frame body 7; the bottom of the sliding plate 8 is fixedly provided with a pressing plate 2, the top of the frame body 7 is communicated with a communicating pipe, the top end of the communicating pipe is fixedly provided with a pressure gauge 9, the bottoms of the two sides of the frame body 7 are fixedly provided with a transverse plate, the bottom of each transverse plate is fixedly provided with a vertical plate 10, one end (the bottom of the front side) of each vertical plate 10 far away from the transverse plate is provided with a round hole, a rotating shaft is rotatably arranged in the round hole and extends out of the round hole, rollers 11 are fixedly arranged at the front end and the rear end of the rotating shaft, the top of the bottom frame 1 is fixedly provided with two fixing plates 17, the outer sides of the two fixing plates 17 are respectively sleeved with a connecting frame 13 in a sliding manner, the top of the connecting frame 13 is fixedly provided with a contact block 12, one side of the contact block far away from the bottom frame is an inclined plane, the four rollers 11 are respectively in rolling connection with the inclined planes of the corresponding contact blocks 12, and one side of the two contact blocks 12 close to each other is fixedly connected with a pressure spring 14, the transverse plates 15 are fixedly mounted at the ends, close to each other, of the two compression springs 14, and the clamping plates 3 are fixedly mounted at the sides, close to each other, of the two transverse plates 15.
In this embodiment, in order to make the stress on the contact block 12 more stable, the contact block 12 is a triangular prism, and the triangular prism is a right-angled triangle, a right-angled surface of the contact block 12 is fixedly connected with the bottom of the connecting frame 13, another right-angled surface of the contact block 12 is connected with the transverse plate 15 connected with the pressure spring 14, and an inclined surface of the contact block 12 is in contact with the roller 11.
In the embodiment, four traveling wheels 20 are adopted, and the four traveling wheels 20 are symmetrically arranged at the bottom of the bottom plate 18.
In this embodiment, the connecting frame 13 is in an inverted concave shape, the top of the connecting frame 13 is fixedly provided with guide plates, and the two guide plates are respectively slidably sleeved on the outer sides of the corresponding transverse plates 15 to guide the transverse plates 15.
In this embodiment, the same limiting rod is fixedly connected to the inner walls of the two sides of the connecting frame 13, and the two fixing plates 17 are respectively slidably sleeved on the outer sides of the corresponding limiting rods to guide and limit the connecting frame 13.
In this embodiment, two equal fixedly connected with connecting spring 16 in one side that fixed plate 17 kept away from each other, two connecting spring 16 one end of keeping away from each other respectively with one side inner wall fixed connection of the linking frame 13 that corresponds, reset linking frame 13.
In this embodiment, the equal fixed mounting in both sides of slide 8 has the limiting plate, and the spacing groove has all been seted up to the both sides of framework 7, and two limiting plates slide sealing connection respectively and carry on spacingly to slide 8 in the spacing inslot that corresponds.
In this embodiment, one side fixed mounting of riser 4 has the reinforcing plate, and reinforcing plate fixed connection promotes the installation stability to roof 5 in the bottom of one side of roof 5.
In the embodiment, a bottom plate 18 is slidably mounted in a bottom frame 1, both sides of the bottom plate 18 are provided with grooves, inner walls of both sides of the grooves are rotatably connected with a plurality of travelling wheels 20, inner walls of both opposite sides of the bottom frame 1 are rotatably connected with a same lead screw 19, specifically, the lead screw 19 is parallel to the edge of the top surface, the outer side of the lead screw 19 is provided with two external threads with opposite rotating directions, the lead screw 19 is respectively and threadedly sleeved with a movable plate 22 on the two external threads, the rear side of each movable plate 22 is rotatably connected with a rotating wheel 23, the top of the bottom plate 18 is provided with a trapezoidal groove, the two rotating wheels 23 are respectively and rotatably connected with the inner wall of the bottom of the trapezoidal groove, one end of the lead screw 19 extends out of the bottom frame (1) and is fixedly provided with a hand wheel, two fixing rods are fixedly mounted on the inner wall of the top of the bottom frame 1, and square plates 21 are fixedly mounted at the bottoms of the two fixing rods, the equal fixedly connected with supporting spring in top both sides of square plate 21, the square groove has all been seted up to the bottom both sides of bottom plate 18, and two square plate 21 sliding connection respectively are at the square groove that corresponds, and two supporting spring's top fixed connection respectively is on the top inner wall of the square groove that corresponds, and the top fixed mounting of movable plate 22 has the locating plate, has seted up two guide ways on the top inner wall of underframe 1, and two locating plates sliding connection respectively are in the guide way that corresponds.
The working principle of the pressure sensor production detection device of the present invention is explained in detail to make the skilled person more understand the present invention:
when the device is used, the screw rod 19 is driven to rotate by rotating the hand wheel, the screw rod 19 drives the two movable plates 22 to move towards one side away from each other, so that the two rotating wheels 23 are driven to move towards one side away from each other, the rotating wheels 23 drive the bottom plate 18 to move downwards by matching with the trapezoidal groove, and the bottom plate 18 drives the plurality of traveling wheels 20 to move downwards to be in contact with the ground, so that the device is convenient to move; then, the bottom plate 18 is reset to move upwards under the action of the supporting spring by reversely rotating the hand wheel, so that the walking wheels 20 are driven to move upwards to be separated from the ground, and the stability of placing equipment is ensured; by placing the sensor on the top of the bottom frame 1 and starting the hydraulic cylinder 6 to drive the frame body 7 to move downwards, the frame body 7 drives the two vertical plates 10 and the four rollers 11 to move downwards, the four rollers 11 respectively drive the two connecting frames 13 to move towards one side close to each other through matching with the corresponding contact blocks 12, the two connecting frames 13 respectively drive the two clamping plates 3 to move towards one side close to each other through the corresponding pressure springs 14 and the transverse plates 15, the sensor is clamped and positioned, the frame body 7 drives the sliding plate 8 and the pressing plate 2 to move downwards at the same time, as the platen 2 comes into contact with the sensor, the frame 7 continues to move downwardly, causing the sled 8 to move upwardly relative to the frame 7, the air in the housing 7 is compressed, the sensor is pressurized by the high-pressure air, and the pressure of the sensor is detected by observing the change in the reading of the pressure gauge 9.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (8)
1. The pressure sensor production detection device comprises a bottom frame (1) and is characterized in that a vertical plate (4) is fixedly mounted on one side of the top of the bottom frame (1), a top plate (5) is fixedly mounted on the top of the vertical plate (4), the top plate (5) is positioned above the bottom frame (1), a hydraulic cylinder (6) is fixedly mounted on the top of the top plate (5), a frame body (7) is fixedly connected onto the output end of the hydraulic cylinder (6), a sliding plate (8) is slidably and hermetically mounted in the frame body (7), the sliding plate (8) is arranged at the bottom of the frame body (7), a pressing plate (2) is fixedly mounted at the bottom of the sliding plate (8), a communicating pipe is communicated with the top of the frame body (7), a pressure gauge (9) is fixedly mounted at the top end of the communicating pipe, transverse plates are fixedly mounted at the bottoms of two sides of the frame body (7), the bottom of each transverse plate is fixedly provided with a vertical plate (10), one end, far away from the transverse plate, of each vertical plate (10) is provided with a round hole, a rotating shaft is installed in the round hole in a rotating mode and extends out of the round hole, idler wheels (11) are fixedly installed at the front end and the rear end of the rotating shaft, two fixing plates (17) are fixedly installed at the top of the bottom frame (1), a connecting frame (13) is sleeved on the outer sides of the two fixing plates (17) in a sliding mode, contact blocks (12) are fixedly installed at the top of the connecting frame (13), one sides, far away from the bottom frame (1), of the contact blocks (12) are inclined planes, the four idler wheels (11) are respectively in rolling connection with the inclined planes of the corresponding contact blocks (12), one sides, close to each other, of the two contact blocks (12) are fixedly connected with pressure springs (14), and one ends, close to each other, of the two pressure springs (14) are fixedly installed with the transverse plates (15), one sides of the two transverse plates (15) close to each other are fixedly provided with clamping plates (3); sliding mounting has bottom plate (18) in underframe (1), and the bottom both sides of bottom plate (18) are all seted up flutedly, rotate on the both sides inner wall of recess and are connected with a plurality of walking wheels (20), and rotate on the relative both sides inner wall of underframe (1) and be connected with same root lead screw (19), the outside of lead screw (19) is provided with two external screw threads that revolve to opposite, just lead screw (19) be threaded sleeve respectively on two opposite external screw threads and be equipped with a movable plate (22), each the bottom of movable plate (22) all rotates and is connected with a runner (23), the dovetail groove has been seted up at the top of bottom plate (18), two runner (23) all with the inner wall roll connection of the bottom in dovetail groove, the one end of lead screw (19) is extended underframe (1), and fixed mounting has the hand wheel.
2. The pressure sensor production detection device of claim 1, wherein two fixing rods are fixedly mounted on the top inner wall of the bottom frame (1), a square plate (21) is fixedly mounted at the bottom end of each fixing rod, supporting springs are fixedly connected to both sides of the top of each square plate (21), square grooves are formed in both sides of the bottom plate (18), the two square plates (21) are respectively slidably connected into the corresponding square grooves, and the top ends of the two supporting springs are respectively fixedly connected to the top inner walls of the corresponding square grooves.
3. The pressure sensor production detection device of claim 1, wherein the top of the connecting frame (13) is fixedly provided with guide plates, and the two guide plates are respectively sleeved on the outer sides of the corresponding transverse plates (15) in a sliding manner.
4. The pressure sensor production detection device of claim 1, wherein the inner walls of the two sides of the connecting frame (13) are fixedly connected with the same limiting rod, and the two fixing plates (17) are respectively sleeved on the outer sides of the corresponding limiting rods in a sliding manner.
5. The pressure sensor production detection device of claim 4, wherein one side of each fixing plate (17) far away from each other is fixedly connected with a connecting spring (16), and one end of each connecting spring (16) far away from each other is fixedly connected with the inner wall of one side of the corresponding connecting frame (13).
6. The pressure sensor production detection device of claim 1, wherein limiting plates are fixedly mounted on both sides of the sliding plate (8), limiting grooves are formed on both sides of the frame body (7), and the two limiting plates are respectively connected in the corresponding limiting grooves in a sliding and sealing manner.
7. The pressure sensor production detection device of claim 1, wherein a reinforcing plate is fixedly mounted on one side of the vertical plate (4), and the reinforcing plate is fixedly connected to the bottom of one side of the top plate (5).
8. The pressure sensor production detection device of claim 1, wherein a positioning plate is fixedly mounted on the top of the moving plate (22), two guide grooves are formed on the inner wall of the top of the bottom frame (1), and the two positioning plates are respectively slidably connected in the corresponding guide grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110944496.8A CN113588165A (en) | 2021-08-17 | 2021-08-17 | Pressure sensor production detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110944496.8A CN113588165A (en) | 2021-08-17 | 2021-08-17 | Pressure sensor production detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113588165A true CN113588165A (en) | 2021-11-02 |
Family
ID=78258347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110944496.8A Withdrawn CN113588165A (en) | 2021-08-17 | 2021-08-17 | Pressure sensor production detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113588165A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905011A (en) * | 2022-05-23 | 2022-08-16 | 安徽天大铜业有限公司 | Casting cooling device for copper rod continuous casting and rolling production line |
| CN114939546A (en) * | 2022-04-27 | 2022-08-26 | 武汉飞恩微电子有限公司 | Fault monitoring and early warning device for sensor production and testing method thereof |
-
2021
- 2021-08-17 CN CN202110944496.8A patent/CN113588165A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939546A (en) * | 2022-04-27 | 2022-08-26 | 武汉飞恩微电子有限公司 | Fault monitoring and early warning device for sensor production and testing method thereof |
| CN114905011A (en) * | 2022-05-23 | 2022-08-16 | 安徽天大铜业有限公司 | Casting cooling device for copper rod continuous casting and rolling production line |
| CN114905011B (en) * | 2022-05-23 | 2024-04-02 | 安徽天大铜业有限公司 | Casting cooling device for copper rod continuous casting and rolling production line |
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Application publication date: 20211102 |