CN119124859B - Titanium alloy forging stress detection method and device - Google Patents
Titanium alloy forging stress detection method and device Download PDFInfo
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- CN119124859B CN119124859B CN202411522765.1A CN202411522765A CN119124859B CN 119124859 B CN119124859 B CN 119124859B CN 202411522765 A CN202411522765 A CN 202411522765A CN 119124859 B CN119124859 B CN 119124859B
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- 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
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- 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
- G01N3/02—Details
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- 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
- G01N3/02—Details
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Abstract
The invention discloses a method and a device for detecting stress of a titanium alloy forging piece, wherein the method comprises the steps that a base is provided with a clamping device for fixing the titanium alloy forging piece in a sliding manner, the clamping device is provided with a driving piece for driving the clamping device to slide at the top end of the base, the base is provided with a lifting device, the lifting device is provided with a jacking piece for detecting the stress of the upper end and the lower end of the titanium alloy forging piece, and the base is provided with a linkage device for synchronously driving the driving piece to move when the lifting device drives the jacking piece to lift.
Description
Technical Field
The invention relates to the technical field of forging detection equipment, in particular to a method and a device for detecting stress of a titanium alloy forging.
Background
The titanium alloy forging is a part formed by heating a titanium alloy material to a proper temperature and shaping the material through a forging process, such as free forging, die forging and the like, and is widely applied to the fields of aerospace, automobiles, medical treatment, chemical industry and the like, and the stress detection of the titanium alloy forging is an important step for ensuring the safety and reliability of the titanium alloy forging in use, and the stress detection is a process for evaluating the internal stress born by a material or a structure under the action of force or load.
The Chinese patent with the publication number of CN117825164B discloses a method and a device for detecting the stress of a titanium forging, the structure of the device comprises a first bottom plate, a connecting column is fixedly connected to the top of the first bottom plate, a rail I is fixedly connected to the inner side of the connecting column, a push rod I is fixedly connected to the top of the connecting column, a pressing assembly is fixedly connected to the top of the push rod I, a detecting mechanism comprises a second push rod fixedly connected to the top of the first bottom plate, a second bottom plate is fixedly connected to the top of the second push rod, a first sliding block is fixedly connected to the outer wall of the second bottom plate, and the device can detect a workpiece in an extrusion mode and detect the workpiece in a stretching mode through the pressure assembly, so that the detecting mode of the device to the workpiece is increased, the detecting effect of the device to the workpiece is improved, and the defect of the workpiece is avoided.
However, the prior art has the defects that when the stress detection is carried out on the titanium alloy forging, only a force on a plane can be applied to the titanium alloy forging, but in the use process of the actual titanium alloy forging, the titanium alloy forging can be subjected to external forces in multiple directions, so that the real stress state of the titanium alloy forging under the actual working condition cannot be reflected by the stress detection in a single direction, the stress distribution of the forging under the complex loading condition can not be accurately disclosed as a result of the detection, and the condition can lead to inaccurate judgment on the performance of the forging.
Disclosure of Invention
The invention aims to solve the problems that when the stress detection is carried out on a titanium alloy forging, only a force on a plane can be applied to the titanium alloy forging, but in the use process of an actual titanium alloy forging, the titanium alloy forging can be subjected to external forces in multiple directions, so that the real stress state of the titanium alloy forging under the actual working condition cannot be reflected by the single-direction stress detection, the stress distribution of the forging under the complex load condition can not be accurately disclosed as a result of the detection, and the judgment on the performance of the forging can be inaccurate due to the situation.
The technical scheme includes that the method and the device for detecting the stress of the titanium alloy forging comprise a base, wherein a clamping device for fixing the titanium alloy forging is arranged at the top end of the base in a sliding mode, a driving piece for driving the clamping device to slide at the top end of the base is arranged on the clamping device, a lifting device is arranged on the base, a pressing piece for detecting the stress of the upper end and the lower end of the titanium alloy forging is arranged on the lifting device, and a linkage device for synchronously driving the driving piece to move when the lifting device drives the pressing piece to lift is arranged on the base;
The linkage device comprises a fixed frame fixedly connected with the side end of the base, a ball is connected in the fixed frame in a sliding manner, a linkage rod is connected in the fixed frame in a sliding manner, one end of the linkage rod penetrates through the fixed frame and the base and is fixedly arranged with the driving piece, and one end of the lifting device is arranged in the fixed frame and is connected with the fixed frame in a sliding manner;
When the lifting device drives the pressing piece to lift, the lifting device is arranged at one end in the fixed frame, and the ball is pushed to slide in the fixed frame, so that the ball pushes the linkage rod, the driving piece is activated, and the titanium alloy forging piece on the clamping device is driven to move.
As a still further scheme of the invention, the clamping device comprises a lower clamping plate which is in sliding connection with the top end of the base, the side end of the lower clamping plate is fixedly connected with a gear set, the input end of the gear set is fixedly connected with a rotating rod, one end of the rotating rod is rotationally connected with a first hydraulic rod, the output end of the gear set is fixedly connected with a stud, the side end of the stud is in threaded connection with an upper clamping plate, the top end of the upper clamping plate is inserted with a limiting rod, and one end of the limiting rod penetrates through the upper clamping plate and is inserted with the lower clamping plate.
As a still further scheme of the invention, the lifting device comprises a second hydraulic rod fixedly connected with the base, a sliding block is fixedly connected with the movable end of the second hydraulic rod, a sliding rail is fixedly connected with the side end of the fixed frame, the sliding block is in sliding connection with the sliding rail, and one end of the sliding block penetrates through the sliding rail and the fixed frame and is in sliding connection with the fixed frame.
As a still further scheme of the invention, one end of the sliding block is rotatably connected with a lifting assembly, one end of the lifting assembly is rotatably connected with a lifting plate, and a pressing piece is arranged on the lifting plate.
As a still further scheme of the invention, the propping piece comprises a mounting plate which is spliced with the lifting plate, one end of the mounting plate is connected with a pressing cone in a threaded manner, and the pressing cone penetrates through the mounting plate.
As a still further scheme of the invention, the driving piece comprises a guide rod fixedly connected with the inside of the base, a sleeve is sleeved on the outer side of the guide rod and is in sliding connection with the guide rod, and the sleeve is fixedly connected with the linkage rod.
As a still further scheme of the invention, the side end of the sleeve is rotationally connected with a linkage rod, one end of the linkage rod is rotationally connected with a transmission rod, one end of the transmission rod is rotationally connected with a fixed rod, one end of the fixed rod is fixedly connected with the base, the other end of the transmission rod is rotationally connected with a push rod, and one end of the push rod is rotationally connected with the lower clamping plate.
A method for detecting stress of a titanium alloy forging comprises the following steps:
S1, firstly, placing a titanium alloy forging to be detected on a lower clamping plate through a gap between two groups of upper clamping plates, then enabling a limiting rod to pass through the upper clamping plates and be spliced with the lower clamping plates, limiting the position of the titanium alloy forging, starting a first hydraulic rod, enabling the first hydraulic rod to drive a rotating rod to rotate, driving a stud to rotate through a gear set, enabling the upper clamping plates to move downwards, and clamping the titanium alloy forging in cooperation with the lower clamping plates;
S2, fixing the press cone on the mounting plate, respectively inserting two ends of the mounting plate into the two groups of lifting plates, and adjusting the height of the press cone by rotating the press cone to enable the upper end and the lower end of the titanium alloy forging piece to be in butt joint with the press cone;
And S3, finally, starting a hydraulic rod II to enable the sliding block to slide upwards or downwards in the sliding rail so as to drive the lifting assembly to move, enabling the pressing cone to apply external force to the lower end or the upper end of the titanium alloy forging, pushing the balls in the fixed frame to move in the moving process of the sliding block, enabling the balls to push the linkage rod to move downwards or upwards in the fixed frame so as to drive the sleeve to move downwards or upwards on the guide rod, driving the transmission rod to rotate, and enabling the two groups of push rods to respectively pull or push the two groups of clamping devices inwards to apply external pulling force or inwards pushing force to the two ends of the titanium alloy forging.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, through the structural design of the linkage device, when the lifting device drives the pressing piece to move, the linkage device can automatically adjust the movement of the driving piece, so that the clamping device moves along with the pressing piece, and the pressing piece and the clamping device work cooperatively, so that force can be uniformly applied to the upper end, the lower end and the side end of the titanium alloy forging piece, and the bidirectional pressure method can remarkably enhance the stability and the reliability of the test, and can further understand the behavior of the forging piece under the complex stress condition possibly encountered in practical application;
2. According to the invention, even clamping of the titanium alloy forging is ensured by the double-group clamping device, and the design avoids stress test errors caused by uneven clamping, so that the accuracy of a test result is improved, the driving piece can realize synchronous movement, so that the force applied to the titanium alloy forging can be evenly distributed, and the uniformity of stress application is ensured;
3. According to the invention, the hydraulic system in the lifting device is used for controlling the up-and-down movement of the propping piece, so that the propping piece can apply uniform pressure to the upper end and the lower end of the titanium alloy forging piece, the hydraulic system provides a stable and controllable pressure application mode, the controllability of the applied force in the stress test process is ensured, and the stress response of the forging piece can be accurately measured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a method and apparatus for detecting stress of a titanium alloy forging according to the present invention;
FIG. 2 is a cross-sectional view of a base in a method and apparatus for detecting stress in a titanium alloy forging according to the present invention;
FIG. 3 is a schematic view of a method and apparatus for detecting stress of a titanium alloy forging and a clamping device in the apparatus according to the present invention;
FIG. 4 is a schematic diagram of a method and a device for detecting stress of a titanium alloy forging and a lifting device in the device;
FIG. 5 is a schematic diagram of the structure at A in FIG. 4 in a method and apparatus for detecting stress of a titanium alloy forging according to the present invention;
FIG. 6 is a schematic diagram of the structure of a driving member in a method and apparatus for detecting stress of a titanium alloy forging according to the present invention;
FIG. 7 is a schematic diagram of a linkage device in a method and apparatus for detecting stress of a titanium alloy forging according to the present invention;
FIG. 8 is a schematic diagram of the structure of a linkage rod in the method and the device for detecting the stress of the titanium alloy forging.
In the figure, 1, a base, 2, a clamping device, 21, a lower clamping plate, 22, a gear set, 23, a rotating rod, 24, a first hydraulic rod, 25, a stud, 26, an upper clamping plate, 27, a limiting rod, 3, a driving piece, 31, a guide rod, 32, a sleeve, a linkage rod, 34, a transmission rod, 35, a fixing rod, 36, a push rod, 4, a lifting device, 41, a sliding rail, 42, a second hydraulic rod, 43, a sliding block, 44, a lifting assembly, 45, a lifting plate, 5, a pressing piece, 51, a mounting plate, 52, a pressing cone, 6, a linkage device, 61, a fixing frame, 62, balls, 63 and a linkage rod.
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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediary, or communicate between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 8, in the embodiment of the invention, a method and a device for detecting stress of a titanium alloy forging piece comprise a base 1, wherein the top end of the base 1 is slidably provided with two clamping devices 2 for fixing the titanium alloy forging piece, the two clamping devices 2 are symmetrically distributed on two sides of the top end of the base 1, each clamping device 2 is provided with a group of driving parts 3 for driving the clamping devices 2 to slide on the top end of the base 1, the base 1 is provided with a lifting device 4, the lifting device 4 is provided with two groups of pressing parts 5 which are rotationally symmetrically distributed on two sides of the base 1, the lifting device 4 is provided with two groups of pressing parts 5 for detecting stress on the upper end and the lower end of the titanium alloy forging piece, the pressing parts 5 are symmetrically distributed on the upper end and the lower end of the titanium alloy forging piece, the base 1 is provided with a linkage device 6 which synchronously drives the driving parts 3 to move when the lifting device 4 drives the pressing parts 5 to lift, and the linkage device 6 is provided with two groups which are rotationally symmetrically distributed on two sides of the base 1;
the linkage device 6 comprises a fixed frame 61 fixedly connected with the side end of the base 1, the fixed frame 61 is O-shaped, O-shaped sliding grooves are formed in the fixed frame 61, a plurality of groups of balls 62 are connected in the O-shaped sliding grooves in a sliding mode, the balls 62 are uniformly distributed in the O-shaped sliding grooves, a linkage rod 63 is connected in the fixed frame 61 in a sliding mode, the upper end and the lower end of the linkage rod 63 in the O-shaped sliding grooves are respectively abutted with a group of balls 62, one end of the linkage rod 63 penetrates through the fixed frame 61 and the base 1 and is fixedly arranged with the driving piece 3, one end of the lifting device 4 is arranged in the fixed frame 61 and is connected with the fixed frame 61 in a sliding mode, and the upper end and the lower end of the lifting device 4 in the O-shaped sliding grooves are respectively abutted with a group of balls 62;
When the lifting device 4 drives the pressing piece 5 to lift, the lifting device 4 is arranged at one end in the fixed frame 61, and pushes a group of balls 62 abutted on the lifting device to slide in the fixed frame 61, so that a plurality of groups of balls 62 slide in O-shaped sliding grooves in the fixed frame 61, the balls 62 push the linkage rod 63 to move downwards, the driving piece 3 is activated, the two groups of clamping devices 2 are respectively driven to move inwards, and inward pressure is applied to titanium alloy forgings on the two groups of clamping devices 2.
Referring to fig. 3, the clamping device 2 comprises a lower clamping plate 21 slidably connected with the top end of the base 1, a gear set 22 is fixedly connected with the side end of the lower clamping plate 21, the gear set 22 is composed of a fixed shell and a plurality of groups of gears therein, wherein the fixed shell is fixedly connected with the side end of the lower clamping plate 21, the input end of the gear set 22 is fixedly connected with a rotating rod 23, one end of the rotating rod 23 is rotatably connected with a hydraulic rod 24, the output end of the gear set 22 is fixedly connected with a stud 25, the rotating speed of the stud 25 is higher than the rotating speed of the rotating rod 23 through the cooperation of a plurality of groups of gears with different numbers of teeth, so that when the rotating rod 23 drives the stud 25 to rotate through the gear set 22, the rotating number of turns of the stud 25 is greater than that of the rotating rod 23 pushes the input end of the gear set 22, an upper pressing plate 26 is connected with threads on the side end of the stud 25, a limit rod 27 is inserted into the top end of the upper pressing plate 26, one end of the limit rod 27 penetrates through the upper pressing plate 26 and is inserted into the lower clamping plate 21, the width of the upper pressing plate 26 is smaller than that of the lower clamping plate 21, a plurality of groups of through holes are formed in the upper pressing plate in a penetrating way, a plurality of groups of clamping holes are formed in the lower clamping plate 21, the through holes and the clamping holes are matched with the limiting rods 27, a plurality of groups of limiting rods 27 are arranged, each group of limiting rods 27 is embedded with a pressure sensor, when in use, firstly, a titanium alloy forge piece to be detected is placed on the lower clamping plate 21 through the gap between the two groups of upper pressing plates 26, then the plurality of groups of limiting rods 27 penetrate through the through holes in the upper pressing plate 26 and are inserted into the clamping holes corresponding to the through holes formed in the lower clamping plate 21, the positions of the titanium alloy forge piece are limited, the first hydraulic rod 24 is started, the first hydraulic rod 24 drives the rotating rod 23 to rotate, the stud 25 is driven to rotate through a plurality of groups of gears in the gear group 22 to lift the rotating speed, the upper pressing plate 26 moves downwards and is matched with the lower clamping plate 21 to clamp the titanium alloy forge piece, when the two groups of clamping devices 2 respectively move inwards or outwards, the titanium alloy forgings are compressed or stretched, stress tests are carried out, in the stress test process, the limiting rod 27 is abutted against the titanium alloy forgings to be stressed, and the limiting rod 27 is embedded with a pressure sensor to convert the stress into an electric signal for further processing and analysis.
In this way, the pressure sensor embedded in the stop lever 27 of the present solution employs advanced prior art technology, specifically a piezoelectric sensor that uses the principle of piezoelectric effect to precisely convert the mechanical stress applied to it into an electrical signal, in which application the piezoelectric sensor generates, through the internal piezoelectric material, charges that are proportional to the applied stress when subjected to the force, which are then converted into an electrical signal, providing further processing and analysis.
By adopting the scheme, the titanium alloy forging can be firmly clamped through the cooperation of the lower clamping plate 21 and the upper clamping plate 26 which are in sliding connection with the top end of the base 1. The clamping mechanism ensures the stability and the positioning accuracy of the forging in the detection process, thereby avoiding the test error caused by the position change of the forging, adapting to the titanium alloy forging with different sizes and shapes by adjusting the gap between the upper pressing plate 26 and the lower clamping plate 21, and enhancing the applicability and the universality of the titanium alloy forging.
Referring to fig. 4, the lifting device 4 includes a second hydraulic rod 42 fixedly connected to the base 1, a sliding block 43 fixedly connected to a movable end of the second hydraulic rod 42, a slide rail 41 fixedly connected to a side end of a fixed frame 61, the sliding block 43 slidably connected to the slide rail 41, one end of the sliding block 43 penetrates through the slide rail 41 and the fixed frame 61 and is slidably connected to the fixed frame 61, a set of balls 62 are respectively abutted to upper and lower ends of the sliding block 43 in an O-shaped sliding groove, one end of the sliding block 43 is rotatably connected to a lifting assembly 44, one end of the lifting assembly 44 is rotatably connected to a lifting plate 45, side ends of the lifting plate 45 are provided with slots in a penetrating manner, two sets of slots are provided on each set of lifting plate 45, a pressing piece 5 is inserted into each slot provided on the lifting plate 45, the lifting plate 45 is in a Z-shaped manner, the lifting assembly 44 is a mechanical device for realizing lifting motion by a plurality of rigid plates in hinged connection, and the core structure thereof includes a plurality of straight plates connected through hinge points, allowing the plates to rotate around the hinge points, wherein one set of straight plates is rotatably connected to the sliding block 43, and the lifting assembly 44 is pushed by pushing the set of straight plates, so that the lifting assembly 44 drives the lifting plate 45 to lift vertically.
By adopting the scheme, the jacking piece 5 can apply uniform pressure on the upper end and the lower end of the titanium alloy forging piece through the lifting device 4, so that the applied force is controllable in the stress testing process, and the stress response of the forging piece can be accurately measured.
Referring to fig. 5, the pressing piece 5 includes a mounting plate 51 inserted into the lifting plate 45, the mounting plate 51 is provided with two groups, the two groups of mounting plate 51 are symmetrically distributed at the upper and lower ends of the titanium alloy forging, a plurality of groups of threaded holes are formed in the penetrating way of the top end of the mounting plate 51, the plurality of groups of threaded holes are uniformly distributed at the top end of the mounting plate 51, a pressing cone 52 is connected in threaded way in the threaded holes, and the pressing cone 52 penetrates through the mounting plate 51, and is composed of a group of threaded rods and a conical pressing head which are connected with the threaded holes in the mounting plate 51 in threaded way, when the titanium alloy forging is mounted, the pressing cone 52 is connected with the mounting plate 51 in threaded way, one end of the group of mounting plate 51 is inserted into a group of slots on the lifting plate 45, the mounting plate 51 is pushed towards the group of slots, the other end of the group of mounting plate 51 is aligned with a group of slots on the other group of lifting plate 45, afterwards, the two ends of the mounting plate 51 are respectively inserted into a group of slots on the two groups of lifting plate 45, the mounting plate 51 is fixed, when the two groups of pressing pieces 5 are respectively mounted at the upper and lower ends of the titanium alloy forging, the pressing cone 52 is respectively formed by rotating the pressing cone 52, when the two groups of pressing cone 52 are respectively connected with the upper and lower ends of the titanium alloy forging, the upper and lower ends of the titanium alloy forging are respectively, and the pressing piece 4 are driven by the pressing cone 52, and when the pressing device is driven by the titanium alloy forging is in the upper and lower ends of the titanium alloy forging, and the titanium alloy forging 5, and the external force is applied to the pressing device.
By adopting the scheme, the pressing cone 52 is directly contacted with the forging, the applied external force can be efficiently transferred to the surface of the titanium alloy forging, the accurate stress measurement is realized, the installation mode of the pressing piece 5 allows the position of the pressing piece to be quickly and conveniently adjusted, and the installation and adjustment process of the pressing piece 5 is simplified by being matched and fixed with the slot on the lifting plate 45.
Referring to fig. 6, the driving member 3 includes a guiding rod 31 fixedly connected with the inside of the base 1, a sleeve 32 is sleeved on the outer side of the guiding rod 31, connecting lugs are fixedly connected with the side ends of the sleeve 32, two groups of connecting lugs are symmetrically distributed on two sides of the sleeve 32, the sleeve 32 is slidably connected with the guiding rod 31, the sleeve 32 is fixedly connected with a linkage rod 63, one end of each group of connecting lugs is rotatably connected with a group of linkage rods 33, one end of each linkage rod 33 is rotatably connected with a transmission rod 34, the transmission rod 34 is L-shaped, one end of each transmission rod 34 is rotatably connected with a fixing rod 35, one end of each fixing rod 35 is fixedly connected with the base 1, the other end of each transmission rod 34 is rotatably connected with a push rod 36, one end of each push rod 36 is rotatably connected with the lower clamping plate 21, when the sleeve 32 moves up or moves down on the outer side of the guiding rod 31, the transmission rod 34 is pulled by the linkage rods 33 to rotate around the connection points with the fixing rods 35, and accordingly the push rods 36 are pulled or pushed, so that the two groups of clamping devices 2 synchronously move outwards or inwards.
By adopting the scheme, the synchronous movement of the clamping device 2 is realized through the structures of the guide rod 31, the sleeve 32, the linkage rod 33 and the like, and the synchronous application of external force to the titanium alloy forging by the clamping device 2 is ensured.
The working principle of the invention is as follows: firstly, placing a titanium alloy forge piece to be detected on a lower clamping plate 21 through a gap between two groups of upper clamping plates 26, then enabling a plurality of groups of limiting rods 27 to pass through holes on the upper clamping plate 26 and to be inserted into clamping holes corresponding to the through holes on the lower clamping plate 21, limiting the position of the titanium alloy forge piece, starting a hydraulic rod one 24, enabling the hydraulic rod one 24 to drive a rotating rod 23 to rotate, lifting the rotating speed through a plurality of groups of gears in a gear group 22, driving a stud 25 to rotate, enabling the upper clamping plate 26 to move downwards, clamping and fixing the titanium alloy forge piece in a matched mode with the lower clamping plate 21, then connecting a pressing cone 52 with a mounting plate 51 in a threaded mode, then inserting one end of one group of mounting plates 51 into one group of slots on one group of lifting plates 45, pushing the mounting plate 51 towards the direction of the group of slots to enable the other end of the group of mounting plates 51 to be aligned with one group of slots on the other group of lifting plates 45, then pushing the mounting plate 51 to the direction of the group of slots, respectively inserting the two ends of the mounting plate 51 into one group of slots on the two groups of lifting plates 45, fixing the mounting plate 51, after the two groups of pressing pieces 5 are respectively arranged at the upper end and the lower end of the titanium alloy forging, respectively abutting the upper end and the lower end of the titanium alloy forging by rotating the pressing cones 52, then starting the hydraulic rods II 42 to enable the sliding block 43 to slide upwards or downwards in the sliding rail 41, pushing the group of straight plates rotationally connected with the sliding block 43, enabling the lifting assembly 44 to drive the lifting plates 45, lifting in the vertical direction, applying external force to the titanium alloy forging by the pressing cones 52 at the lower end of the titanium alloy forging when the lifting device 4 drives the pressing pieces 5 to move upwards, applying external force to the titanium alloy forging by the pressing cones 52 at the upper end of the titanium alloy forging when the lifting device 4 drives the pressing pieces 5 to move downwards, when the pressing piece 5 moves, the lifting device 4 is arranged at one end in the fixed frame 61, and pushes a group of balls 62 abutted against the lifting device to slide in the fixed frame 61, so that a plurality of groups of balls 62 slide in O-shaped sliding grooves in the fixed frame 61, and the balls 62 push the linkage rod 63 to move upwards or downwards, when the sleeve 32 moves upwards or downwards outside the guide rod 31, the transmission rod 34 is pulled by the linkage rod 33, the transmission rod 34 rotates around a connection point with the fixed rod 35, so that the push rod 36 is pulled or pushed, the two groups of clamping devices 2 synchronously move outwards or inwards, compression or stretching is carried out on a titanium alloy forging, stress testing is carried out, and in the stress testing process, the limiting rod 27 is abutted against the titanium alloy forging, and the stress is converted into an electric signal by a pressure sensor embedded on the limiting rod 27, so that further processing and analysis are provided; through the structural design of the linkage device 6, when the lifting device 4 drives the pressing piece 5 to move, the linkage device 6 can automatically adjust the movement of the driving piece 3 to enable the clamping device 2 to move along with the movement of the pressing piece 5, the force can be uniformly applied to the upper end, the lower end and the side end of the titanium alloy forging piece through the cooperative work of the pressing piece 5 and the clamping device 2, the stability and the reliability of the test can be obviously enhanced by the bidirectional pressure method, the behavior of the forging piece under the complex stress condition possibly encountered in the practical application can be further understood, the uniform clamping of the titanium alloy forging piece is ensured through the double-group clamping device 2, the design avoids the stress test error caused by uneven clamping, thereby improving the accuracy of the test result, the driving piece 3 can realize synchronous movement, the force applied to the titanium alloy forging piece can be uniformly distributed, thereby ensuring the uniformity of the stress application, the up-and-down movement of the propping piece 5 is controlled by a hydraulic system in the lifting device 4, so that the propping piece 5 can apply uniform pressure on the upper end and the lower end of the titanium alloy forging piece, the hydraulic system provides a stable and controllable pressure application mode, the controllability of the applied force in the stress test process is ensured, and the stress response of the forging piece can be accurately measured.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a titanium alloy forging stress detection device, includes base (1), its characterized in that, base (1) top slip is provided with clamping device (2) that fix the titanium alloy forging, and clamping device (2) are provided with two sets of, and the symmetric distribution is in base (1) top both sides, be provided with on clamping device (2) drive clamping device (2) on base (1) top gliding driving piece (3), be provided with elevating gear (4) on base (1), be provided with on elevating gear (4) and carry out stress detection's top and bottom end casting die (5) to the titanium alloy forging, be provided with on base (1) and drive linkage (6) that driving piece (3) removed when elevating gear (4) drive casting die (5) to go up and down in step;
The linkage device (6) comprises a fixed frame (61) fixedly connected with the side end of the base (1), a ball (62) is connected in the fixed frame (61) in a sliding manner, a linkage rod (63) is connected in the fixed frame (61) in a sliding manner, one end of the linkage rod (63) penetrates through the fixed frame (61) and the base (1) and is fixedly arranged with the driving piece (3), and one end of the lifting device (4) is arranged in the fixed frame (61) and is connected with the fixed frame (61) in a sliding manner;
When the lifting device (4) drives the pressing piece (5) to lift, the lifting device (4) is arranged at one end in the fixed frame (61) to push the balls (62) to slide in the fixed frame (61), so that the balls (62) push the linkage rod (63) to activate the driving piece (3) to enable the two groups of clamping devices (2) to synchronously move outwards or inwards to compress or stretch the titanium alloy forging;
Clamping device (2) include with base (1) top sliding connection's lower plate (21), lower plate (21) side fixedly connected with gear train (22), gear train (22) input fixedly connected with dwang (23), dwang (23) one end rotation is connected with hydraulic rod (24), gear train (22) output fixedly connected with double-screw bolt (25), double-screw bolt (25) side threaded connection has upper plate (26), peg graft on upper plate (26) top has gag lever post (27), all inlay on every group gag lever post (27) and have pressure sensor, gag lever post (27) one end runs through upper plate (26) to peg graft with lower plate (21).
2. The titanium alloy forging stress detection device according to claim 1, wherein the lifting device (4) comprises a second hydraulic rod (42) fixedly connected with the base (1), a sliding block (43) is fixedly connected with the movable end of the second hydraulic rod (42), a sliding rail (41) is fixedly connected with the side end of the fixed frame (61), the sliding block (43) is in sliding connection with the sliding rail (41), and one end of the sliding block (43) penetrates through the sliding rail (41) and the fixed frame (61) and is in sliding connection with the fixed frame (61).
3. The titanium alloy forging stress detection device according to claim 2, wherein one end of the sliding block (43) is rotatably connected with a lifting assembly (44), one end of the lifting assembly (44) is rotatably connected with a lifting plate (45), and a pressing piece (5) is arranged on the lifting plate (45).
4. A titanium alloy forging stress detection device according to claim 3, wherein the propping piece (5) comprises a mounting plate (51) which is inserted into the lifting plate (45), one end of the mounting plate (51) is connected with a pressing cone (52) in a threaded manner, and the pressing cone (52) penetrates through the mounting plate (51).
5. The titanium alloy forging stress detection device according to claim 4, wherein the driving piece (3) comprises a guide rod (31) fixedly connected with the inside of the base (1), a sleeve (32) is sleeved on the outer side of the guide rod (31), the sleeve (32) is slidably connected with the guide rod (31), and the sleeve (32) is fixedly connected with the linkage rod (63).
6. The titanium alloy forging stress detection device according to claim 5, wherein a linkage rod (33) is rotationally connected to the side end of the sleeve (32), a transmission rod (34) is rotationally connected to one end of the linkage rod (33), a fixing rod (35) is rotationally connected to one end of the transmission rod (34), one end of the fixing rod (35) is fixedly connected with the base (1), a push rod (36) is rotationally connected to the other end of the transmission rod (34), and one end of the push rod (36) is rotationally connected with the lower clamping plate (21).
7. The method for detecting the stress of the titanium alloy forging according to any of claims 1 to 6, comprising the steps of:
S1, firstly, placing a titanium alloy forging to be detected on a lower clamping plate (21) through a gap between two groups of upper clamping plates (26), then enabling a limiting rod (27) to pass through the upper clamping plates (26) and to be spliced with the lower clamping plates (21), limiting the position of the titanium alloy forging, starting a first hydraulic rod (24), enabling the first hydraulic rod (24) to drive a rotating rod (23) to rotate, driving a stud (25) to rotate through a gear set (22), enabling the upper clamping plates (26) to move downwards, and clamping the titanium alloy forging in cooperation with the lower clamping plates (21);
s2, fixing the press cone (52) on the mounting plate (51), respectively inserting two ends of the mounting plate (51) into the two groups of lifting plates (45), and adjusting the height of the press cone (52) by rotating the press cone (52) so as to enable the upper end and the lower end of the titanium alloy forging to be in butt joint with the press cone (52);
s3, finally, a hydraulic rod II (42) is started, a sliding block (43) slides upwards or downwards in a sliding rail (41), so that a lifting assembly is driven to move, an external force is applied to the lower end or the upper end of the titanium alloy forging by a pressing cone (52), a ball (62) in a fixed frame (61) is pushed to move in the moving process of the sliding block (43), the ball (62) pushes a linkage rod (63) to move downwards or upwards in the fixed frame, a sleeve (32) is driven to move downwards or upwards on a guide rod (31), a transmission rod (34) is driven to rotate, and two groups of push rods (36) respectively pull or push two groups of clamping devices (2) inwards to apply an outward pulling force or an inward pushing force to the two ends of the titanium alloy forging.
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| CN106248505A (en) * | 2016-10-05 | 2016-12-21 | 宁波兴业盛泰集团有限公司 | A kind of stress relaxation test device and test method |
| CN117825164A (en) * | 2024-03-04 | 2024-04-05 | 宝鸡市创信金属材料有限公司 | Titanium forging stress detection method and device |
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| JP3774122B2 (en) * | 2001-03-15 | 2006-05-10 | 日本碍子株式会社 | Method and apparatus for detecting defects in insulators |
| CN221302950U (en) * | 2023-10-19 | 2024-07-09 | 郑州国电机械设计研究所有限公司 | Steel construction stress detection equipment |
| CN221707121U (en) * | 2024-01-29 | 2024-09-13 | 湖北中广公路勘察设计有限公司 | A stress detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248505A (en) * | 2016-10-05 | 2016-12-21 | 宁波兴业盛泰集团有限公司 | A kind of stress relaxation test device and test method |
| CN117825164A (en) * | 2024-03-04 | 2024-04-05 | 宝鸡市创信金属材料有限公司 | Titanium forging stress detection method and device |
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