CN113959832B - Rotary shaft type variable angle loading clamp based on light air cannon and mounting method thereof - Google Patents
Rotary shaft type variable angle loading clamp based on light air cannon and mounting method thereof Download PDFInfo
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- CN113959832B CN113959832B CN202110820472.1A CN202110820472A CN113959832B CN 113959832 B CN113959832 B CN 113959832B CN 202110820472 A CN202110820472 A CN 202110820472A CN 113959832 B CN113959832 B CN 113959832B
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- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 description 8
- 238000009863 impact test Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000956 alloy Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000003116 impacting effect Effects 0.000 description 1
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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
- G01N3/04—Chucks
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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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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Abstract
A rotating shaft type variable angle loading clamp based on a light air gun and an installation method thereof belong to the technical field of experimental equipment. Two target plate supports are fixed on the heightening connecting plate, target plate fastening blocks are arranged on the target plate supports, semicircular grooves are respectively formed in two opposite faces of the target plate fastening blocks and the target plate supports, the transfer shaft is arranged in the semicircular grooves, the target plate fastening blocks and the target plate supports are tightly connected through bolts to tightly press the transfer shaft, the transfer shaft is fixedly connected with the connecting block, the connecting block is fixed on the rear side of a target plate rear clamp, and the target plate is clamped by the target plate front clamp and the target plate rear clamp; the bottom of the target cabin load bearing frame is fixedly provided with a target cabin connecting base, the front side of the target cabin load bearing frame is fixedly provided with an incident plate, the top and the other three sides of the target cabin load bearing frame are sealed by protection plates, and the loading clamp is fixedly arranged on the target cabin connecting base; the separation flange is arranged in the incidence slot hole of the incidence plate in a sliding way, the separation flange is connected with the incidence plate, and the central through hole of the separation flange can pass through the target projectile sample. The invention is suitable for variable-angle loading of the light gas cannon.
Description
Technical Field
The invention belongs to the technical field of experimental equipment, relates to a loading clamp for impact test and an installation method thereof, and particularly relates to a loading clamp for medium-high-speed impact test applicable to different angles of a lightweight test piece and an installation method thereof.
Background
In the experiment and engineering, the load working conditions that the warheads with different material shapes and different speeds impact the target plates with different boundary conditions from different angles exist frequently, but the experiment is finished by lacking general and simple equipment at present.
In 2020, the general red flag et al published a clamp (patent application number: CN 212134324U) for an angle-variable impact test, which was capable of realizing an angle-variable impact test. However, the experimental clamp is complex in structure, is only suitable for testing a large target plate sample under low-speed impact load, is difficult to study a lightweight warhead at the same time, and is also required to be matched with a specific drop hammer testing machine for use.
Therefore, the variable-angle loading clamp which is simple in structure, convenient to install, high in test efficiency and suitable for various light air cannons is of great significance.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a rotating shaft type variable-angle loading clamp based on a light air gun and an installation method thereof. The invention provides a loading clamp and an installation method thereof, which are suitable for impact tests of different material shape warheads with different speeds impacting load working conditions of target plates with different boundary conditions from different angles, based on a light air gun.
The technical scheme adopted by the invention for achieving the purpose is as follows:
a rotary shaft type variable angle loading clamp based on a light gas gun comprises a loading clamp, a protection device and a light gas gun component; the loading clamp comprises a heightening connecting plate, two target plate supports, two target plate fastening blocks, two switching shafts, two connecting blocks, a target plate rear clamp and a target plate front clamp; the protection device comprises an incidence plate, four protection plates, a target cabin connecting base and a target cabin bearing frame; the light gas gun assembly comprises a separation flange, a bullet support, at least one light gas gun support and a light gas gun;
the upper end face of the heightening connecting plate is provided with two target plate supports in parallel left and right, the two target plate supports are detachably and fixedly connected with the heightening connecting plate, the upper end of each target plate support is provided with a target plate fastening block, the lower end face of each target plate fastening block and the corresponding position of the upper end face of each target plate support are respectively provided with a semicircular groove, the shaft ends of the transfer shaft are arranged in the semicircular grooves of the target plate fastening block and the target plate support, the target plate fastening block and the target plate support are fixedly connected with each other through a plurality of bolts in a fastening manner to compress the transfer shaft, the disc ends of the transfer shaft are fixedly connected with the connecting blocks, the two connecting blocks are vertically fixed on the left side and the right side of the rear side face of the target plate rear clamp, the front side of the target plate rear clamp is provided with a target plate front clamp, and the target plate is arranged between the target plate rear clamp and the target plate front clamp, and the target plate front clamp is detachably and fixedly connected with the target plate rear clamp to clamp the target plate;
the bottom of the target cabin load bearing frame is fixedly provided with a target cabin connecting base, the front side of the target cabin load bearing frame is fixedly provided with an incident plate, the top and the other three sides of the target cabin load bearing frame except the bottom and the front side of the target cabin load bearing frame are all sealed by protection plates, the inside of the target cabin load bearing frame is a target cabin, and the middle part of the incident plate is provided with an incident long hole along the height direction of the incident plate; the loading clamp is fixedly arranged on the target cabin connecting base; the plate surface of the target plate corresponds to the incidence long hole, the incidence plate is symmetrically provided with long strip holes at two sides of the incidence long hole, the small diameter end of the separation flange is slidably arranged in the incidence long hole of the incidence plate, and the large diameter end of the separation flange is detachably and fixedly connected with the incidence plate through bolts penetrating into the long strip holes; the separation flange is provided with a central through hole, the central through hole of the separation flange can pass through the target bullet sample, the bullet support is matched with and is arranged in the gun barrel of the light air gun in a sliding manner, the target bullet sample is matched with and arranged in the central hole of the bullet support in a sliding manner, and the light air gun is supported by at least one light air gun support.
The method for installing the rotating shaft type variable angle loading clamp based on the light air cannon comprises the following steps:
step one, a step one; selecting a proper target plate rear clamp and a target plate front clamp according to the appearance and boundary conditions of the target plate, and clamping and fixing the target plate between the target plate rear clamp and the target plate front clamp by utilizing a plurality of bolts and nuts;
step two, a step two is carried out; the two connecting blocks are detachably and symmetrically fixed on the left side and the right side of the rear side surface of the target plate rear clamp, and the two adapter shafts are detachably fixed at the centers of the two connecting blocks, so that a combination body is formed;
step three, a step of performing; the method comprises the steps of integrally placing a combination body on a target plate support, placing the shaft end of a transfer shaft in a semicircular groove of the target plate support, placing a target plate fastening block above the transfer shaft, applying pretightening force through a bolt after the angle of the combination body is adjusted, and fixing the shaft end of the transfer shaft between the target plate fastening block and the target plate support;
step four, a step four is carried out; a height-adjusting connecting plate with proper thickness is selected to realize coarse adjustment in height, a target plate support is detachably fixed on the height-adjusting connecting plate, a target cabin connecting base is detachably fixed on the height-adjusting connecting plate, and finally the target cabin connecting base is fixedly connected with a bottom foundation;
step five, a step of performing a step of; placing the target cabin load bearing frame on a target cabin connecting base, detachably and fixedly connecting the target cabin load bearing frame and the target cabin connecting base, detachably and fixedly mounting an incident plate on one side of the target cabin load bearing frame, and sealing the top and other three sides of the target cabin load bearing frame except the bottom and one side of the target cabin load bearing frame through protection plates; the installation height of the separation flange is determined in a visual or laser positioning mode, and the separation flange is detachably connected with the incidence plate through bolts penetrating into the strip-shaped holes of the incidence plate;
and step six, selecting a bullet holder matched with the target bullet sample according to the shape of the target bullet sample, installing the bullet holder into a light air gun, debugging the light air gun support and the light air gun, and starting a test.
Compared with the prior art, the invention has the beneficial effects that:
(1) The target plate has abundant selection space, and can be suitable for medium-high-low-speed impact experiments of plate-shaped target plate samples with various sizes, different shapes and different boundary conditions;
(2) The target projectile sample has abundant selection space, and in the range of the lightweight target projectile sample, the target projectile sample with various shapes and various materials can be suitable for low-medium-high-speed experiments loaded by the device;
(3) The variable angle impact test can be conveniently carried out, the impact angle can be randomly set by the mode of pre-tightening and fastening the knurled shaft end of the adapter shaft, and meanwhile, the accuracy of the impact position can be ensured by coarse adjustment of the height-adjusting connecting plate (changing the height-adjusting connecting plates with different thicknesses) and fine adjustment of the mounting positions of the separating flanges;
(4) The experiment safety is fully ensured, and the protection plates and the incidence plates with different intensities (such as a curtain, a plastic plate, a composite plate and an alloy plate) can be installed according to different impact speeds through the target cabin bearing frame of the alloy material, so that the situation that the reflected object cannot cause damage to personnel and equipment after impact under the loading condition of the ultra-high-speed impact experiment can be ensured;
(5) Greatly improves the success rate of experiments, and has the advantages of high accuracy and positioning effect by the separation effect of the separation flange (the center through hole of the separation flange can pass through the target projectile but can not pass through the projectile holder), the impact test is ensured to be influenced by the fact that the bullet support cannot penetrate through the incident plate, the accurate positioning of the impact position of the target plate is also ensured, the effect of ' what is called, and the separating flange plays the role of ' after the front opening ' is carried out;
(6) The whole device is convenient to install and detach, has high test efficiency, and is easy to realize batch performance of variable-angle low-medium-high-speed impact experiments of target plate samples and target bomb samples of various types.
(7) The device can be suitable for the variable-angle accurate loading and rebound protection of plate-shaped target plate samples with various sizes, different shapes and different conditions under the low-medium-high-speed impact load of lightweight target bomb samples with various shapes and various materials.
Drawings
FIG. 1 is an isometric view of a loading fixture of a rotary-shaft variable-angle loading fixture based on a light air cannon of the present invention;
FIG. 2 is an isometric view of a guard in a rotary axis variable angle loading clamp based on a light gas gun of the present invention;
FIG. 3 is an isometric view of a light gas gun assembly of the present invention based on a pivot type variable angle loading clamp for the light gas gun;
FIG. 4 is an isometric view of a rotary shaft type variable angle loading clamp based on a light air cannon of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
fig. 6 is an isometric view of a target plate back clamp.
The component names and numbers referred to in the above figures are as follows:
the high-pressure-reducing device comprises a height-reducing connecting plate 1, a target plate support 2, a target plate fastening block 3, a connecting shaft 4, a connecting block 5, a target plate rear clamp 6, a target plate front clamp 7, a target plate 8, connecting bolts 9, an incidence plate 10, a protection plate 11, a target cabin connecting base 12, a target cabin bearing frame 13, a separating flange 14, a target bullet 15, a bullet support 16, a light air gun support 17, a light air gun 18 and a hollow 19.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "symmetrical", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for the purpose of describing the present invention and simplifying the description, and it is not to indicate or imply that the apparatus or element to be referred to must have a specific azimuth or position, and thus it should not be construed as limiting the present invention.
The first embodiment is as follows: as shown in fig. 1-5, the present embodiment discloses a rotary shaft type variable angle loading clamp based on a light gas gun, which comprises a loading clamp, a protecting device and a light gas gun assembly; the loading clamp comprises a heightening connecting plate 1, two target plate supports 2, two target plate fastening blocks 3, two adapter shafts 4, two connecting blocks 5, a target plate rear clamp 6 and a target plate front clamp 7; the protection device comprises an incidence plate 10, four protection plates 11, a target cabin connecting base 12 and a target cabin bearing frame 13; the light gas gun assembly comprises a separation flange 14, a bullet support 16, at least one light gas gun bracket 17 and a light gas gun 18;
the upper end face of the height-adjusting connecting plate 1 is provided with two target plate supports 2 in parallel left and right, the two target plate supports 2 are detachably and fixedly connected with the height-adjusting connecting plate 1 (through a plurality of bolts), the upper end of each target plate support 2 is provided with a target plate fastening block 3, the corresponding positions of the lower end face of the target plate fastening block 3 and the upper end face of the target plate support 2 are respectively provided with a semicircular groove, the shaft ends of the switching shaft 4 are arranged in the semicircular grooves of the target plate fastening block 3 and the target plate support 2, the switching shaft 4 is fixedly compressed by the fastening connection of the target plate fastening block 3 and the target plate support 2 through a plurality of bolts, the disc end of the switching shaft 4 is fixedly connected with the connecting block 5, the two connecting blocks 5 are vertically fixed on the left side and the right side of the rear side face of the target plate rear clamp 6, the front side of the target plate rear clamp 6 is provided with a target plate front clamp 7, the target plate 8 is arranged between the target plate rear clamp 6 and the target plate front clamp 7, and the target plate front clamp 7 can be detachably and fixedly connected with the target plate rear 6 (through the bolts) to clamp 8;
the bottom of the target cabin load bearing frame 13 is fixed with a target cabin connecting base 12, the front side of the target cabin load bearing frame 13 is fixed with an incident plate 10, the top and other three sides of the target cabin load bearing frame 13 except the bottom and the front side of the target cabin load bearing frame 13 are all sealed by a protection plate 11, the inside of the target cabin load bearing frame 13 is a target cabin, and the middle part of the incident plate 10 is provided with an incident long hole along the height direction of the incident plate 10; the loading clamp is fixedly arranged on the target cabin connecting base 12; the plate surface of the target plate 8 corresponds to the incidence long hole, the incidence plate 10 is symmetrically provided with long strip holes at two sides of the incidence long hole, the small diameter end of the separation flange 14 is slidably arranged in the incidence long hole of the incidence plate 10, and the large diameter end of the separation flange 14 is detachably and fixedly connected with the incidence plate 10 through bolts penetrating into the long strip holes; the separating flange 14 is provided with a central through hole, the central through hole of the separating flange 14 can pass through the target projectile 15 sample seamlessly, the projectile support 16 is matched and arranged in the barrel of the light gas cannon 18 in a sliding manner, the target projectile 15 sample is matched and arranged in the central hole of the projectile support 16 in a sliding manner, and the light gas cannon 17 is supported by at least one light gas cannon support 17 (the light gas cannon supports 17 with different heights are selected so as to meet the adjustment of the height of the light gas cannon 17).
Two types of bolt holes are formed in the heightening connecting plate 1, namely an array bolt hole, the aperture and the hole spacing are the same as those of the array bolt hole on the target cabin connecting base, and a fixed bolt hole, and the aperture and the hole spacing are matched with those of eight bolt holes at the bottoms of the two target board supports 2.
The heightening function of the heightening connection plate 1 is mainly matched with the angle changing function of the loading clamp part of the target plate 8, the target plate fastening block 3 is loosened, the whole assembly of the target plate 8, the target plate front clamp 7, the target plate rear clamp 8 and the connection block 5 rotates around the switching shaft 4 by a target angle, and in order to enable the specific position of the target plate 8 to be aligned with an incidence long hole, the heightening connection plate 1 with different thicknesses is installed to adapt to the height of the rotated target plate 8.
The connecting blocks 5 mainly play a role in connection, the target plate rear clamp 6 and the adapter shaft 4 are connected together, and the two connecting blocks 5 are arranged in bilateral symmetry. Bolt deep holes and bolt through holes are respectively formed in the front end face and the plate face of the connecting block 5 and are used for fastening connection of the target plate rear clamp 6 and the connecting block 5 and fastening connection of the adapter shaft 4 and the connecting block 5.
The main function of the target plate rear clamp 6 is to act as a load carrying platform for the target plate 8. Two types of bolt through holes are formed in the front end face of the connecting block 5 and are connected with the bolt deep holes of the front end face of the connecting block in a matched mode, and one type of bolt through holes are connected with the bolt through holes of the front clamp 7 of the target plate in a matched mode. As a carrying platform of the target plate 8, the outer contour shape of the target plate rear fixture 6 is adapted to the relative positions of the pair of connection blocks 5.
The function of the entrance plate 10 is to secure the separation flange 14 and to prevent the rebound object having a high residual velocity from flying out to hurt people or damaging the apparatus. The upper and lower sides of the incidence plate 10 are respectively provided with a row of bolt through holes for fastening to the target chamber load frame 13. The middle part is provided with an incidence long hole and a strip-shaped hole for fixing the separation flange.
The protection plate 11 functions to prevent the rebound object having a high remaining speed from flying out to hurt a person or damaging the apparatus. A row of bolt through holes are respectively formed on the front side and the rear side of the protection plate 11 and are used for fastening the protection plate 11 to the target cabin load-bearing frame 13.
The target cabin connecting base 12 is used for limiting the target cabin bearing frame 13 and is connected with the heightening connecting plate 1. The target cabin connecting base 12 has a certain thickness, and the outer contour can be seamlessly matched with the target cabin bearing frame 13 to play a limiting role. The target cabin connecting base 12 is provided with an array bolt through hole which plays two roles, one is used for being in fastening connection with the height-adjusting connecting plate 1, and the other is in fastening connection with the bottom foundation.
The target cabin load-carrying frame 13 serves as a basic skeleton, and the auxiliary protection plate 11 and the incidence plate 10 construct a closed space to prevent rebound objects with high residual speed from flying out to hurt people or damaging equipment.
The separating flange 14 functions to block the sabot 16 from entering the target chamber and to allow the sample of the target 15 to enter the target chamber to strike the target plate 8. The small diameter end of the separation flange 14 can be seamlessly installed into the incidence slot hole of the incidence plate 10, the large diameter end of the separation flange 14 is provided with a bolt through hole on the outer ring for positioning and fastening the separation flange 14 on the strip-shaped hole, and the center through hole of the separation flange 14 can pass through the target bullet 15 sample.
The target 15 is primarily a lightweight sample of material including, but not limited to, metal or composite material, and shape including, but not limited to, bar, sphere or cylinder.
The projectile support 16 is made of light materials according to the outer contour of the corresponding sample of the projectile 15 mainly by means of additive manufacturing. The inner diameter of the bullet holder 16 is adapted to the target bullet 15, and the outer diameter is adapted to the inner diameter of the barrel of the light air cannon 18.
The light air cannon bracket 17 mainly functions to support and fix the light air cannon 18 and adjust the height of the light air cannon 18 (the separation flange 14 is mounted on the incidence plate 10 with fastening bolts according to a selected height, the light air cannon bracket 17 of a suitable height is selected according to the selected height, and the light air cannon 18 is mounted thereon). Preferably, two light air gun supports 17 are adopted, and the two light air gun supports 17 are arranged symmetrically in front and back.
The target cabin load bearing frame 13 is made of alloy material.
The protection plate 11 and the incidence plate 10 are curtain, plastic plate, composite plate or alloy plate.
The second embodiment is as follows: as shown in fig. 1, this embodiment is further described in the first embodiment, and the semicircular groove formed on the lower end surface of the target plate fastening block 3 and the semicircular groove formed on the upper end surface of the target plate support 2 are both knurled grooves; the outer wall surface of the shaft end of the switching shaft 4 is provided with knurling. For increasing friction force and preventing the impact force from rotating the adapter shaft 4.
The two target plate supports 2 are used for supporting a target plate 8, a target plate front clamp 7, a target plate rear clamp 6 and a connecting block 5 assembly, and the two target plate supports 2 are arranged in bilateral symmetry. The semicircular groove at the top end of the connecting shaft is a knurling groove, and the knurling groove is used for increasing friction and is matched with the connecting shaft 4 to achieve the fastening effect. Four bolt through holes are formed in the bottom of each target plate support 2 and are used for being fixedly connected with the heightening connecting plate 1; the top of the target plate support 2 is provided with a bolt deep hole for fixing the target plate 8, the target plate front clamp 7, the target plate rear clamp 6 and the connecting block 5 assembly at a certain angle in cooperation with the target plate fastening block 3.
The two target plate fastening blocks 3 are used for being matched with the target plate support 2 to fix the target plate 8, the target plate front clamp 7, the target plate rear clamp 6 and the connecting block 5 in a certain angle, and the two target plate fastening blocks 3 are arranged in bilateral symmetry. Four bolt through holes are symmetrically formed in the top of each target plate fastening block 3, semicircular grooves are formed in the bottom of each target plate fastening block, and the semicircular grooves are knurled grooves. Through the symmetrically installed bolts, a pretightening force is formed between the target plate support 2 and the target plate fastening block 3, and the adapter shaft 4 is fastened and cannot rotate.
The adapter shaft 4 is used for controlling the angle of the target plate 8, is fixedly connected with the connecting block 5, and is fixedly connected with the target plate support 2 through the pretightening force between the target plate support 2 and the target plate fastening block 3. The disc part of the adapter shaft 4 is provided with a bolt through hole for being fastened and connected with the connecting block 5; the outer wall surface of the shaft end of the adapter shaft 4 is provided with knurling for increasing friction force and preventing the impact force from rotating. The angle of impact of the target plate 8 is theoretically in the range of 0 to 90 ° based on the angle control of the adapter shaft 4.
And a third specific embodiment: as shown in fig. 1 and fig. 6, this embodiment is further described in the first embodiment, the center of the target plate rear fixture 6 is provided with a hollow 19, and the outline shape of the hollow 19 is triangle, square, polygon or circle.
The inner contour of the target plate back jig 6 is selected to be different according to the shape of the target plate 8 and the boundary condition requirements.
The specific embodiment IV is as follows: as shown in fig. 1, this embodiment is a further explanation of the first embodiment, and the shape of the target plate front holder 7 is a 'C' -shape, a 'mouth' -shape, a 'one' -shape, an 'O' -shape, or a polygonal frame. If the front clamp 7 of the target plate adopts a C shape, two front clamps 7 of the target plate are adopted, and the openings are arranged opposite to each other.
The front clamp 7 of the target plate mainly aims to clamp the target plate 8 in the middle by matching with the rear clamp 6 of the target plate, and gives the target boundary condition. The front clamp 7 of the target plate is provided with a bolt through hole for being matched with the bolt through hole of the rear clamp 6 of the target plate to fasten the target plate 8. Depending on the desired boundary conditions of the target plate 8, the shape of the target plate front clamp 7 may be selected from one of the above.
Fifth embodiment: as shown in fig. 2, this embodiment is further described in the first embodiment, bolt through holes are formed in the target cabin connection base 12 in an array (the bolt through holes serve two functions, one is for fastening connection with the height-adjusting connection board 1, and the other is for fastening connection with the bottom foundation).
Specific embodiment six: as shown in fig. 3, this embodiment is further described in the first embodiment, the light air cannon bracket 17 is plate-shaped, a mounting hole is formed in the middle above the light air cannon bracket 17, and the gun tube of the light air cannon 18 is fixedly inserted into the mounting hole of the light air cannon bracket 17.
Seventh embodiment: as shown in fig. 1 to 5, the present embodiment discloses a method for installing a rotary shaft type variable angle loading clamp based on a light air gun according to any one of the first to sixth embodiments, the method includes the following steps:
step one, a step one; selecting a proper target plate back clamp 6 and a target plate front clamp 7 according to the appearance and boundary conditions of a target plate 8, and clamping and fixing the target plate between the target plate back clamp 6 and the target plate front clamp 7 by utilizing a plurality of bolts and nuts (the symmetry is ensured by taking care of symmetrical fixation during the fixation);
step two, a step two is carried out; the two connecting blocks 5 (with bolts) are detachably and symmetrically fixed on the left side and the right side of the rear side surface of the target plate rear clamp 6, and the two adapter shafts 4 (with bolts and nuts) are detachably fixed at the centers of the two connecting blocks 5, so that a combination body is formed;
step three, a step of performing; the method comprises the steps of integrally placing a combination body on a target plate support 2, placing the shaft end of a transfer shaft 4 in a semicircular groove of the target plate support 2, placing a target plate fastening block 3 above the transfer shaft 4, applying pretightening force through a bolt after the angle of the combination body is adjusted, and fixing the shaft end of the transfer shaft 4 between the target plate fastening block 3 and the target plate support 2;
step four, a step four is carried out; a height-adjusting connecting plate 1 with proper thickness is selected to realize coarse adjustment in height, a target plate support 2 is detachably fixed on the height-adjusting connecting plate 1 (through a connecting bolt 9), a target cabin connecting base 12 is detachably fixed on the height-adjusting connecting plate 1 (through a bolt), and finally the target cabin connecting base 12 is fixedly connected with a bottom foundation (through a bolt);
step five, a step of performing a step of; the target cabin load bearing frame 13 is arranged on the target cabin connecting base 12 and is detachably and fixedly connected with the target cabin connecting base 12 (through bolts), the incidence plate 10 is detachably and fixedly arranged on one side of the target cabin load bearing frame 13 (through bolts), and the top and the other three sides of the target cabin load bearing frame 13 except the bottom and one side of the target cabin load bearing frame 13 are closed through the protection plate 11; the installation height of the separation flange 14 is determined by visual or laser positioning, and the separation flange 14 is detachably connected with the incidence plate 10 (fine adjustment in height) through bolts penetrating into the strip-shaped holes of the incidence plate 10;
and step six, selecting a bullet holder 16 matched with the target bullet 15 according to the shape of the sample of the target bullet, installing the bullet holder into a light air gun 18, debugging the light air gun support 17 and the light air gun 18, and starting a test.
Eighth embodiment: as shown in fig. 1, this embodiment is further described in the seventh embodiment, in the third step, knurling with reticulation is provided on the shaft end surface of the adapter shaft 4, the groove surface of the semicircular groove at the top end of the target plate support 2, and the groove surface of the semicircular groove at the lower end of the target plate fastening block 3 (the shaft end of the adapter shaft 4 is placed in the semicircular groove of the target plate support 2, the target plate fastening block 3 is placed above the adapter shaft 4, and after the angle of the assembly is adjusted, a pretightening force is applied by the bolts to play a role in fixing the angle).
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution, and although the applicant has described the present invention in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents of the technical solution of the present invention can be made without departing from the spirit and scope of the technical solution, and the scope of the claims of the present invention should be covered.
Claims (8)
1. A pivot formula variable angle loading anchor clamps based on light gas big gun, its characterized in that: comprises a loading clamp, a protecting device and a light air gun component; the loading clamp comprises a heightening connecting plate (1), two target plate supports (2), two target plate fastening blocks (3), two adapter shafts (4), two connecting blocks (5), a target plate rear clamp (6) and a target plate front clamp (7); the protection device comprises an incidence plate (10), four protection plates (11), a target cabin connecting base (12) and a target cabin bearing frame (13); the light gas gun assembly comprises a separation flange (14), a bullet support (16), at least one light gas gun bracket (17) and a light gas gun (18);
the device is characterized in that two target plate supports (2) are arranged on the left and right sides of the upper end face of the height-adjusting connecting plate (1) in parallel, the two target plate supports (2) are detachably and fixedly connected with the height-adjusting connecting plate (1), a target plate fastening block (3) is arranged at the upper end of each target plate support (2), a semicircular groove is respectively arranged at the corresponding positions of the lower end face of each target plate fastening block (3) and the upper end face of each target plate support (2), the shaft ends of the transfer shafts (4) are arranged in the semicircular grooves of the target plate fastening blocks (3) and the target plate supports (2), the target plate fastening blocks (3) are fixedly connected with the target plate supports (2) through a plurality of bolts, the disc ends of the transfer shafts (4) are fixedly connected with the connecting blocks (5), the two connecting blocks (5) are vertically fixed on the left side and the right side of the rear side face of the target plate rear clamp (6), a target plate front clamp (7) is arranged on the front side of the target plate rear clamp (6), the shaft ends of the target plate (8) are arranged in the semicircular grooves of the target plate fastening block (3), the target plate fastening block (6) are fixedly connected with the target plate front clamp (7) through the bolts, and the target plate fastening block (7) can be detached from the target plate rear clamp (6);
the bottom of the target cabin bearing frame (13) is fixedly provided with a target cabin connecting base (12), the front side of the target cabin bearing frame (13) is fixedly provided with an incident plate (10), the top and the other three sides of the target cabin bearing frame (13) except the bottom and the front side are all sealed by a protection plate (11), the inside of the target cabin bearing frame (13) is provided with a target cabin, and the middle part of the incident plate (10) is provided with an incident long hole along the height direction of the incident plate (10); the loading clamp is fixedly arranged on the target cabin connecting base (12); the plate surface of the target plate (8) corresponds to the incidence long hole, the incidence plate (10) is symmetrically provided with long holes at two sides of the incidence long hole, the small diameter end of the separation flange (14) is slidably arranged in the incidence long hole of the incidence plate (10), and the large diameter end of the separation flange (14) is detachably and fixedly connected with the incidence plate (10) through a bolt penetrating into the long hole; the separation flange (14) is provided with a central through hole, the central through hole of the separation flange (14) can pass through a target projectile (15) sample, the projectile support (16) is matched with and arranged in a gun barrel of the light gas cannon (18) in a sliding manner, the target projectile (15) sample is matched with and arranged in the central hole of the projectile support (16) in a sliding manner, and the light gas cannon (18) is supported by at least one light gas cannon support (17).
2. The rotary shaft type variable angle loading clamp based on the light air cannon as claimed in claim 1, wherein: the semicircular groove formed in the lower end face of the target plate fastening block (3) and the semicircular groove formed in the upper end face of the target plate support (2) are knurled grooves; the outer wall surface of the shaft end of the switching shaft (4) is provided with knurling.
3. The rotary shaft type variable angle loading clamp based on the light air cannon as claimed in claim 1, wherein: the center of the target plate rear clamp (6) is provided with a hollow-out part (19), and the outline shape of the hollow-out part (19) is triangle, square, polygon or circular.
4. The rotary shaft type variable angle loading clamp based on the light air cannon as claimed in claim 1, wherein: the front clamp (7) of the target plate is in a shape of a C-shaped, a mouth-shaped, a straight line-shaped, an O-shaped or a polygonal frame.
5. The rotary shaft type variable angle loading clamp based on the light air cannon as claimed in claim 1, wherein: bolt through holes are formed in the target cabin connecting base (12) in an array mode.
6. The rotary shaft type variable angle loading clamp based on the light air cannon as claimed in claim 1, wherein: the light gas gun support (17) is plate-shaped, a mounting hole is formed in the middle of the upper portion of the light gas gun support (17), and a gun tube of the light gas gun (18) is fixedly penetrated out of the mounting hole of the light gas gun support (17).
7. A method of installing a light air cannon-based pivot type variable angle loading jig as defined in any one of claims 1 to 6, wherein: the method comprises the following steps:
step one, a step one; selecting a proper target plate rear clamp (6) and a target plate front clamp (7) according to the appearance and boundary conditions of a target plate (8), and clamping and fixing the target plate between the target plate rear clamp (6) and the target plate front clamp (7) by utilizing a plurality of bolts and nuts;
step two, a step two is carried out; the two connecting blocks (5) are detachably and symmetrically fixed on the left side and the right side of the rear side surface of the target plate rear clamp (6), and the two adapter shafts (4) are detachably fixed at the centers of the two connecting blocks (5), so that a combination body is formed;
step three, a step of performing; the method comprises the steps of integrally placing a combination body on a target plate support (2), placing the shaft end of a switching shaft (4) in a semicircular groove of the target plate support (2), placing a target plate fastening block (3) above the switching shaft (4), applying pretightening force through a bolt after the combination body is adjusted to an angle, and fixing the shaft end of the switching shaft (4) between the target plate fastening block (3) and the target plate support (2);
step four, a step four is carried out; a height-adjusting connecting plate (1) with proper thickness is selected to realize coarse adjustment in height, a target plate support (2) is detachably fixed on the height-adjusting connecting plate (1), a target cabin connecting base (12) is detachably fixed on the height-adjusting connecting plate (1), and finally the target cabin connecting base (12) is fixedly connected with a bottom foundation;
step five, a step of performing a step of; the method comprises the steps of placing a target cabin bearing frame (13) on a target cabin connecting base (12) and enabling the target cabin bearing frame and the target cabin bearing frame to be detachably and fixedly connected, detachably and fixedly installing an incidence plate (10) on one side of the target cabin bearing frame (13), and sealing the top and the other three sides of the target cabin bearing frame (13) except the bottom and one side of the target cabin bearing frame (13) through a protection plate (11); the installation height of the separation flange (14) is determined by visual or laser positioning, and the separation flange (14) is detachably connected with the incidence plate (10) through bolts penetrating into the strip-shaped holes of the incidence plate (10);
selecting a bullet holder (16) matched with the target bullet (15) according to the shape of the sample, installing the bullet holder into a light air gun (18), debugging the light air gun bracket (17) and the light air gun (18), and starting a test.
8. The installation method of the rotating shaft type variable angle loading clamp based on the light air cannon of claim 7, which is characterized in that: in the third step, reticulate knurling is arranged on the shaft end surface of the adapter shaft (4), the groove surface of the semicircular groove at the top end of the target plate support (2) and the groove surface of the semicircular groove at the lower end of the target plate fastening block (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110820472.1A CN113959832B (en) | 2021-07-20 | 2021-07-20 | Rotary shaft type variable angle loading clamp based on light air cannon and mounting method thereof |
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| CN202110820472.1A CN113959832B (en) | 2021-07-20 | 2021-07-20 | Rotary shaft type variable angle loading clamp based on light air cannon and mounting method thereof |
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| CN113959832B true CN113959832B (en) | 2023-11-03 |
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| CN114577427B (en) * | 2022-03-03 | 2023-03-10 | 武汉理工大学 | Multi-angle target plate impact test platform |
| CN116256234B (en) * | 2023-05-16 | 2023-08-29 | 北京航天众信科技有限公司 | Static test device for target missile wing |
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