CN213956243U - Wedge-shaped compression die capable of monitoring deformation quantity - Google Patents
Wedge-shaped compression die capable of monitoring deformation quantity Download PDFInfo
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- CN213956243U CN213956243U CN202022825860.2U CN202022825860U CN213956243U CN 213956243 U CN213956243 U CN 213956243U CN 202022825860 U CN202022825860 U CN 202022825860U CN 213956243 U CN213956243 U CN 213956243U
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Abstract
The utility model discloses a can monitor wedge compression mould of deformation volume, including bedplate (10), set up displacement sensor (7) on bedplate (10), induction type contact pin (8), cover half (9) and support column (6), displacement sensor (7) and induction type contact pin (8) interconnect and cooperation realize the response of wedge sample deformation and the measurement of displacement, cover half (9) top sets up movable mould (5), connect gradually spring (2) and movable mould board (1) on movable mould (5), movable mould board (1) lower surface sets up guide pillar (3), guide pillar (3) cover are located in spring (2) and are passed upper die plate (4) and are connected with movable mould (5). The mould improves the opening and closing compression mode of the open mould, and can monitor the deformation displacement of the tested wedge-shaped sample block in real time; and in the compression process, the deformation control of the sample block is realized through a feedback mechanism. The die is simple and convenient to operate, safe and reliable, and has high practical application value.
Description
Technical Field
The utility model relates to a measuring device, in particular to wedge compression mould of the deformation volume of can monitoring.
Background
The universal tester is a test analysis type instrument used for compression and stretching processes, and theoretically, a tested piece is deformed by a load loading mode, and finally deformation data is output through computer numerical value software. And obtaining the relation between the deformation quantity of the tested piece and the loading speed, loading load and loading time through the effective data information. The universal testing machine has the advantages that: firstly, the speed can be adjusted and can be adjusted between 1mm/min and 10 mm/min; secondly, the load size can be adjusted, and synchronous regulation and control can be conveniently carried out by combining the limit of the load borne by the die or the tested piece; and the operation is simple, safe and reliable. The existing universal testing machine is provided with a stress-strain measuring device, so that the change of relevant deformation parameters of a test piece can be analyzed in real time when the test piece is subjected to compression deformation operation, and the universal testing machine is a necessary scientific research and teaching instrument at present.
At present, to the experimental work of teaching, use the mould on this platform of universal tester, still lack the mould structure of adaptation, the reason is that the pressure head/clamp plate of taking on the universal tester can produce certain rotatory skew after the operation, and the present most compression mould is open on the market, and the cover half is the state of separating completely with the movable mould under the initial condition promptly, when getting into compression state, needs the accurate location between guide pillar and the guide pin bushing. Therefore, the open die can not be applied to a universal testing machine, and is more tedious in the dismounting process and inaccurate in positioning, and can lead to certain deviation of a final compression result. In order to change the situations of complicated disassembly and assembly and inaccurate positioning, an integral compression mold needs to be designed and manufactured. In addition, after the compression process is completed, the compression die for teaching tests cannot accurately measure the size of the extruded test piece through manual measurement, has large error, and cannot measure the stage deformation amount of the compressed test piece. Therefore, in order to conveniently and accurately measure the dimensional change of the test piece, it is necessary to design and manufacture a displacement sensor capable of automatically monitoring the deformation of the test piece in real time. Finally, the relation between the real-time deformation data output by the displacement sensor and the loading load, the loading time and the loading speed monitored by the computer on the universal testing machine is calculated by a formula, so that the deformation control with different deformation quantity requirements is realized.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing but the wedge compression mould of accurate location, convenient monitoring deformation volume.
The technical scheme is as follows: the utility model provides a can monitor wedge compression mould of deformation volume, including the bedplate, set up displacement sensor, induction type contact pin, cover half and support column on the bedplate, displacement sensor and induction type contact pin interconnect and cooperation realize the response of wedge sample deformation and the measurement of displacement, and the cover half top sets up the movable mould, connects gradually spring and movable mould board on the movable mould, and the movable mould board lower surface sets up the guide pillar, and the guide pillar cover is located in the spring and is passed the cope match-plate pattern and be connected with the movable mould.
Further, inside displacement sensor was located to induction type contact needle, including inside ball needle with locate its outside have magnetic needle tubing, ball needle front end cover set for the heart spring to be connected with pressure signal receiving module, the ball needle is located in the needle tubing, needle tubing side-mounting axostylus axostyle, the rack is equipped with on the axostylus axostyle, the rack drives the gear motion of installing on the fixed axle, the gear drives the below and sets up contact rack synchronous motion, the contact rack is connected with displacement signal receiving module, displacement signal receiving module is connected with the display module, the axostylus axostyle both sides are equipped with the fixed reset spring of one end respectively along the needle tubing direction.
Furthermore, the displacement sensor also comprises a magnetic induction block for fixing the needle tube.
Furthermore, a wear-resistant guide sleeve is arranged at the position, corresponding to the guide pillar, inside the upper template.
Furthermore, a magnet is arranged at the bottom of the displacement sensor and is attached to the surface of the seat plate in a magnetic attraction mode.
The working principle of the die is as follows:
firstly, the method comprises the following steps: firstly, a wedge-shaped compression mold is placed at the center of a working platform of a universal testing machine, a T-shaped bolt and a pressing plate are adopted to align at a waist-shaped groove position of a mold base plate, and the T-shaped bolt is locked by a nut.
II, secondly: the wedge block sample to be measured is placed between the movable die and the fixed die, the distance reserved between the upper position and the lower position of the movable die and the upper position and the lower position of the fixed die can be used for just clamping the wedge block sample to be measured, then the displacement sensor and the induction type contact pin are placed on two sides of the base plate together, a square ruler is adopted in the placing process, the edge of the displacement sensor and the edge of the base plate are in the same plane, and the contact needle head is always attached to the surface of the wedge block sample under the interaction of the ball bearing and the reset spring; even if the wedge sample is slightly deviated when being compressed, the contact needle head is not separated from the contact with the surface of the wedge sample.
Thirdly, the method comprises the following steps: after the universal testing machine operates, a pressure head on the universal testing machine descends to drive a movable die plate of the die, the movable die plate is connected with a guide pillar, the guide pillar is connected with a movable die, the movable die descends along with the guide pillar, a spring is compressed under pressure loading, and a wedge-shaped block sample is extruded and deformed.
Fourthly, the method comprises the following steps: when the wedge-shaped block sample deforms, the displacement sensors arranged on two sides of the seat plate receive deformation signals to start working, the displacement distance of the induction type contact pins is transmitted to the displacement sensors, and then the deformation quantity of the wedge-shaped block sample is fed back by the displacement sensors and accurately displayed on the digital display screen.
If nothing is stated in the working process of the die, the related technologies are all the prior art.
Has the advantages that: the utility model discloses a mould is when carrying out compression test, and the wedge sample receives the compression in-process, and the induction type contact syringe needle of both sides is laminated with the surface synchronization of wedge sample respectively, carries the deformation volume of wedge sample to displacement sensor in real time. The mould improves the opening and closing compression mode of the open mould, and can monitor the deformation displacement of the tested wedge-shaped sample block in real time; and in the compression process, the deformation control of the sample block is realized through a feedback mechanism. The die is simple in structure principle, simple and convenient to operate, safe and reliable in the test process, and has high practical application value.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is an isometric view of the structure of the inductive contact pin and displacement sensor of the present invention;
FIG. 3 is a front view of the structure of the inductive contact pin and the displacement sensor of the present invention;
fig. 4 is a rear view of the structure of the inductive contact pin and the displacement sensor of the device of the present invention.
Detailed Description
As shown in fig. 1-4, the wedge compression mold capable of monitoring the deformation amount of this embodiment includes a seat plate 10, a displacement sensor 7 is arranged on the seat plate 10, an inductive contact pin 8, a fixed mold 9 and a support column 6, the displacement sensor 7 is connected with the inductive contact pin 8 and is matched with the inductive contact pin to realize the induction of the deformation of the wedge-shaped block sample and the measurement of the displacement, a movable mold 5 is arranged above the fixed mold 9, the movable mold 5 is sequentially connected with a spring 2 and a movable mold plate 1, a guide pillar 3 is arranged on the lower surface of the movable mold plate 1, and the guide pillar 3 is sleeved in the spring 2 and penetrates through the upper mold plate 4 to be connected with the movable mold 5. The inductive contact needle 8 is arranged inside the displacement sensor 7 and comprises an inner spherical needle 8-1 and an outer magnetic needle tube 8-3, one end of the spherical needle 8-1 is sleeved with a centering spring 8-2, the pressure-sensitive signal receiving module 7-2 is connected with the spherical needle 8-1, the spherical needle 8-3 is arranged in the needle tube 8-3, one side of the needle tube 8-3 is provided with a shaft lever, a rack 8-4 is arranged on the shaft lever, the rack 8-4 drives a gear 8-7 arranged on a fixed shaft 8-8 to move, the gear 8-7 drives a rack 8-9 arranged below the shaft lever to synchronously move, a contact rack 8-9 is connected with the displacement signal receiving module 7-3, the displacement signal receiving module 7-3 is connected with the display module 7-1, and two sides of the shaft lever are respectively provided with a reset spring 8-5 with one fixed end along the direction of the needle tube 8-3. The displacement sensor 7 also comprises a magnetic induction block 8-6 for fixing the needle tube 8-3. A wear-resistant guide sleeve is arranged in the upper template 4 corresponding to the guide pillar 3. The bottom of the displacement sensor 7 is provided with a magnet which is magnetically attached to the surface of the seat plate 10.
The movable mould plate 1 is fixedly connected with four guide posts 3 through screws, and springs 2 are sleeved on the guide posts.
The wear-resistant guide sleeve is embedded in the upper template 4, and when the four guide pillars 3 pass through the upper template 4, the wear-resistant guide sleeve can reduce the abrasion loss of the guide pillars 3. The wear-resistant guide sleeve is fixed on the upper template 4 by metal glue.
One end of the guide post 3 with external threads is connected with the movable die 5, and the models of the four guide posts 5 are the same to ensure the verticality of the movable die 5 in the compression process.
The movable mold 5 is wedge-shaped, and the plane of the movable mold is connected with the guide pillar 3.
The supporting column 6 is connected with the upper template 4 and the seat plate 10 through screws, and the height of the supporting column 6 can be adjusted and installed through the wedge-shaped block sample.
The fixed die 9 is fixedly connected with the base plate 10 through screws.
A seat plate 10 provided with a recess for positioning when the stationary mold 9 is installed. The seat plate is provided with a waist-shaped groove for clamping and fixing on a platform of the universal testing machine.
The displacement sensor 7 is provided with a magnet at the bottom, and is magnetically attached to the surface of the seat plate 10 to prevent the sensor from being positioned and deviated. The displacement sensors are arranged on two sides of the seat plate and mainly feed back the stage deformation quantity and the deformation trend of the two ends of the wedge-shaped block sample in the compression process.
The induction type contact pin 8 receives the compression in-process at the wedge sample, and the induction type contact pin syringe needle 8 of both sides is laminated with the surface of wedge sample is synchronous respectively, carries the deformation volume of wedge sample to displacement sensor 7 in real time. The head of the induction contact needle 8 is in a ball head shape, the spherical needle 8-1 is embedded in the needle tube 8-3, the spherical needle 8-1 is sleeved with the centering spring 8-2 to ensure that the spherical needle 8-1 is stable in axial direction (the centering spring 8-2 is set and can provide resetting after the spherical needle 8-1 undergoes micro displacement), when the spherical needle 8-1 contacts a tested piece, the pressure sensing signal is fed back to the pressure sensing signal receiving module 7-2, and after the pressure sensing signal receiving module 7-2 receives the pressure sensing signal, the displacement sensor 7 operates. The needle tube 8-3 is arranged in the displacement sensor 7, the automatic return springs 8-5 are arranged on two sides close to the displacement sensor, a shaft lever is arranged on one side of the needle tube 8-3, a rack 8-4 is arranged on the shaft lever, and the rack 8-4 is driven to synchronously move when the needle tube 8-3 moves. The gear 8-7 is arranged on the fixed shaft 8-8, the gear 8-7 serves as an idle gear, the gear 8-7 is driven to rotate when the rack 8-4 moves, the contact rack 8-9 is arranged below the gear 8-7 and meshed with the gear 8-7, and the gear 8-7 drives the contact rack 8-9 to move when rotating. The lower end of the contact rack 8-9 is provided with a triangular contact point which projects displacement into the displacement signal receiving module 7-3. The needle tube 8-3 is magnetic, when the tested piece stops deforming, the pressure sensing signal fed back from the spherical needle 8-1 keeps unchanged, and at the moment, 4 magnetic induction blocks 8-6 around the needle tube 8-3 start working to release magnetism, so that the needle tube 8-3 is attracted, and the needle tube 8-3 is prevented from axially moving under the restoring force of the reset spring 8-5. Then, the displacement signal receiving module 7-3 outputs the deformation data to the display module 7-1; meanwhile, the displacement signal receiving module 7-3 records data for archiving. When the measurement is finished, the spherical needle 8-1 outputs no feedback signal instruction to the pressure sensing signal receiving module 7-2, the magnetic induction block 8-6 stops working, the return spring 8-5 at the compressed end enables the needle tube 8-3 to slowly move towards the direction of the initial position under the self-restoring action, and the return spring 8-5 at the released end is used for enabling the needle tube 8-3 to be centered at the initial position (the initial position of the spring of the needle tube 8-3 is in a state of aligning two ends relative to the shell of the sensor 7). The induction type contact pin mainly depends on an integrated structure and a contact type feedback mechanism to ensure the high precision of measurement and even reach the micron level; in addition, the induction type contact pin is suitable for environments such as water, oil and the like, and the measurement precision is not influenced.
If not stated, the related technologies are all the existing conventional technologies in the working process of the die.
Claims (5)
1. A wedge compression mould that can monitor deformation volume characterized in that: including bedplate (10), set up displacement sensor (7) on bedplate (10), induction type contact pin (8), cover half (9) and support column (6), displacement sensor (7) and induction type contact pin (8) interconnect and cooperation realize the response of wedge sample deformation and the measurement of displacement, cover half (9) top sets up movable mould (5), connect gradually spring (2) and movable mould board (1) on movable mould (5), movable mould board (1) lower surface sets up guide pillar (3), guide pillar (3) cover are located in spring (2) and are passed cope match-plate pattern (4) and are connected with movable mould (5).
2. A wedge-shaped compression die capable of monitoring deformation amount according to claim 1, wherein: the induction type contact needle (8) is arranged in the displacement sensor (7) and comprises an inner spherical needle (8-1) and a magnetic needle tube (8-3) arranged outside the inner spherical needle (8-1), a centering spring (8-2) is sleeved at the front end of the spherical needle (8-1) and is connected with a pressure-sensitive signal receiving module (7-2), the spherical needle (8-1) is arranged in the needle tube (8-3), a shaft lever is arranged on the side surface of the needle tube (8-3), a rack (8-4) is arranged on the shaft lever, the rack (8-4) drives a gear (8-7) arranged on a fixed shaft (8-8) to move, a contact rack (8-9) is arranged below the gear (8-7) in a driving mode and moves synchronously, and the contact rack (8-9) is connected with the displacement signal receiving module (7-3), the displacement signal receiving module (7-3) is connected with the display module (7-1), and two sides of the shaft lever are respectively provided with a return spring (8-5) with one fixed end along the direction of the needle tube (8-3).
3. A wedge-shaped compression die capable of monitoring deformation amount according to claim 1, wherein: the displacement sensor (7) further comprises a magnetic induction block (8-6) for fixing the needle tube (8-3).
4. A wedge-shaped compression die capable of monitoring deformation amount according to claim 1, wherein: and a wear-resistant guide sleeve is arranged at the position, corresponding to the guide pillar (3), in the upper template (4).
5. A wedge-shaped compression die capable of monitoring deformation amount according to claim 1, wherein: and a magnet is arranged at the bottom of the displacement sensor (7) and is attached to the surface of the seat plate (10) in a magnetic attraction manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022825860.2U CN213956243U (en) | 2020-11-30 | 2020-11-30 | Wedge-shaped compression die capable of monitoring deformation quantity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022825860.2U CN213956243U (en) | 2020-11-30 | 2020-11-30 | Wedge-shaped compression die capable of monitoring deformation quantity |
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| CN213956243U true CN213956243U (en) | 2021-08-13 |
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| CN202022825860.2U Active CN213956243U (en) | 2020-11-30 | 2020-11-30 | Wedge-shaped compression die capable of monitoring deformation quantity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694831A (en) * | 2021-09-30 | 2021-11-26 | 郑州中南杰特超硬材料有限公司 | Safety device of cubic press and safety block mounting method |
| CN113836663A (en) * | 2021-09-26 | 2021-12-24 | 成都普什汽车模具有限公司 | Method for acquiring elastic deformation compensation value of working table of automobile mould press |
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2020
- 2020-11-30 CN CN202022825860.2U patent/CN213956243U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113836663A (en) * | 2021-09-26 | 2021-12-24 | 成都普什汽车模具有限公司 | Method for acquiring elastic deformation compensation value of working table of automobile mould press |
| CN113836663B (en) * | 2021-09-26 | 2023-11-21 | 成都普什汽车模具有限公司 | Method for obtaining elastic deformation compensation value of working table of automobile die press |
| CN113694831A (en) * | 2021-09-30 | 2021-11-26 | 郑州中南杰特超硬材料有限公司 | Safety device of cubic press and safety block mounting method |
| CN113694831B (en) * | 2021-09-30 | 2024-04-26 | 郑州中南杰特超硬材料有限公司 | Safety device of hexahedral top press and safety block filling method |
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