Orthogonal cutting test bench suitable for solid propellant

Abstract

The present application relates to the technical fields of solid propellant orthogonal cutting experiment, and specifically provides an orthogonal cutting experiment table suitable for solid propellant, which comprises: a table body, the surface of which is provided with an explosion-proof box hinged to one side of the table body; a cutting device arranged in the explosion-proof box on the surface of the table body; the cutting device comprises: a guide rail system extending along the X-axis direction; a support assembly arranged on the surface of the table body, the top end of which is used for mounting the guide rail system; a cutting device slidingly arranged on the bottom surface of the guide rail system; and a clamp assembly telescoping along the Z-axis direction, the clamp assembly being arranged on the surface of the table body below the guide rail system; through the above structural design, the present application improves the problem that the tool feed amount is not uniform and the tool is prone to flutter during the cutting process.

Description

Technical Field

[0001] This invention relates to the field of orthogonal cutting experimental technology for solid propellants, and specifically provides an orthogonal cutting experimental platform suitable for solid propellants. Background Technology

[0002] Solid propellants are key energy materials for propulsion systems in aerospace and aviation fields, and their processing quality directly affects the performance and safety of the power unit. Currently, in orthogonal cutting experiments with solid propellants, the cutting table typically uses the up-and-down movement of the tool to control the cutting depth, while the workpiece moves horizontally to complete the cutting.

[0003] During the cutting process, the integrated guide rail system is prone to vibration. This vibration directly causes fluctuations in the cutting force, leading to slippage in thin-layer cutting. Once slippage occurs, the compression of the solid propellant during slippage can cause damage such as internal dehydration of the solid propellant structure, severely affecting the structural integrity of the propellant and its surface combustion performance during use.

[0004] Furthermore, tool chatter during the cutting process is also a significant issue. Tool chatter increases the depth of cut, leading to decreased cutting accuracy and making it difficult to meet the high-precision machining requirements of solid propellants. Simultaneously, the insufficient rigidity of existing fixture systems further increases the risk of chatter, making the cutting process even more unstable.

[0005] More importantly, the friction between the cutting tool and the solid propellant during tool movement can easily lead to propellant deflagration. Solid propellant itself is flammable and explosive, and deflagration can not only damage the cutting equipment but also pose a serious threat to the lives of operators.

[0006] Therefore, a new technical solution is urgently needed to improve the problems existing in the orthogonal cutting experiment of solid propellants. Summary of the Invention

[0007] To address the issue of tool chatter caused by the use of a three-axis integrated servo drive system in existing solid propellant orthogonal cutting experiments, which results in tool vibration due to partial suspension of the servo drive system during cutting, this invention provides an orthogonal cutting experimental platform suitable for solid propellants. This platform improves upon the problem of inconsistent tool feed rate and tool chatter during cutting.

[0008] According to one aspect of the present invention, an orthogonal cutting test bench suitable for solid propellants is provided. The test bench includes: a platform body with an explosion-proof box hinged to one side of the platform body on its surface; a cutting device disposed within the explosion-proof box on the surface of the platform body; the cutting device includes: a guide rail system extending along the X-axis direction; a support assembly disposed on the surface of the platform body with its top end for mounting the guide rail system; a cutting device slidably disposed on the bottom surface of the guide rail system; and a clamp assembly extending and retracting along the Z-axis direction, the clamp assembly being disposed on the platform surface below the guide rail system.

[0009] In some embodiments, the platform includes: a platform surface for mounting cutting equipment; a column located on the bottom surface of the platform surface for supporting the platform surface; wherein the column is a hollow structure and a power supply device is installed inside the column; an annular sealing groove located on the surface of the platform surface and covering the outer periphery of the cutting equipment; and a sealing cover with an open bottom end, the bottom end of which is located inside the annular sealing groove and filled with inert gas.

[0010] In some embodiments, the guide rail system includes: a cutting motor mounted on the top of a bracket assembly; a lead screw connected at one end to the cutting motor and rotatably connected at the other end to the top of another bracket assembly; two sets of slide rails symmetrically arranged on both sides of the lead screw and parallel to the lead screw; two sets of sliders slidably connected to the bottom surfaces of the two sets of slide rails; and a mounting block disposed between the two sets of sliders, with both ends of the mounting block connected to adjacent surfaces of the two sets of sliders, the lead screw passing through the mounting block, the mounting block sliding along the lead screw, and a plurality of ball bearings filling the space between the lead screw and the mounting block.

[0011] In some embodiments, the support assembly includes: side plates, at least two sets, with the two sets of side plates respectively disposed at both ends of two sets of slide rails; a top plate, disposed between the two sets of side plates, with the two sets of slide rails spaced apart and installed on the bottom surface of the top plate; bearings, at least two sets, with the inner rings of the two sets of bearings respectively connected to both ends of a lead screw; L-plates, at least two sets, with one side of the L-plate used to install the bearing; wherein one end of the lead screw passes through the bearing on the L-plate and is connected to a cutting motor; the cutting motor is installed on the side of the L-plate away from the lead screw; and uprights, two sets, with the top ends of the two sets of uprights respectively installed on the side of the two sets of L-plates away from the bearings, and the uprights are installed on the surface of the platform.

[0012] In some embodiments, the cutting device includes: a tool holder, the top end of which is mounted at the center of the bottom surface of the mounting block; and a cutter, which is detachably mounted at the bottom end of the tool holder, and the cutting direction of the cutter is parallel to the axial direction of the lead screw.

[0013] In some embodiments, the clamping assembly includes: a linear motor mounted on the surface of the platform; a U-shaped plate, the telescopic end of which is disposed within the opening of the U-shaped plate; multiple limiting wheels spaced apart on the outer walls of both sides of the U-shaped plate; two sets of limiting plates slidably disposed on both sides of the U-shaped plate in a vertical direction; multiple inclined grooves spaced apart on the surface of the limiting plates, each groove corresponding to a specific limiting wheel; a mounting box mounted on the surface of the platform, with the opening of the mounting box facing upwards, and the limiting plates sliding along the inner wall of the mounting box; multiple limiting posts evenly distributed on the bottom surface of the mounting box; multiple limiting sleeves slidably fitted onto the top of each limiting post; a support plate disposed on the surfaces of the two sets of limiting plates, with each limiting sleeve connected to the bottom surface of the support plate; and a vise mounted on the surface of the support plate, used to grip solid propellant.

[0014] In some embodiments, a heat dissipation assembly is further provided on one side of the clamping assembly; the heat dissipation assembly includes: a mounting plate, disposed on a bracket assembly at the end away from the cutting motor, the mounting plate being spaced apart from the surface of the platform; a rotating shaft, rotatably disposed on the mounting plate, the rotating shaft being vertically disposed; an L-rod, one end of which is rotatably disposed at the top of the rotating shaft, the end of the L-rod connected to the rotating shaft being perpendicular to the rotating shaft; a first rocker arm, one end of which is connected to the end of the rotating shaft near the mounting plate; a first piston cylinder, disposed between the end of the first rocker arm away from the rotating shaft and the end of the L-rod away from the rotating shaft; the mounting end of the first piston cylinder is connected to the first rocker arm, and the piston rod of the first piston cylinder is connected to the L-rod; wherein the input end of the working chamber of the first piston cylinder is connected to the refrigerant replenishment tank through a one-way valve pipe, and the output end is connected to the slider through a one-way valve pipe; a torsion spring, sleeved around the circumference of the rotating shaft, one end of the torsion spring being connected to the upper mounting plate, and the other end being connected to the rotating shaft; an inclined guide rail, disposed at the lower part of the L-rod, one end of the inclined guide rail being mounted on the bracket assembly, and the inclined guide rail being disposed on the swing stroke of the L-rod around the rotating shaft.

[0015] In some embodiments, the slider has a serpentine flow channel on the side near the slide rail; the slider has a refrigerant storage chamber inside, and the two ends of the flow channel are respectively connected to the refrigerant storage chamber; the input end pipe of the refrigerant storage chamber is connected to the output end of the first piston cylinder, and the output end pipe of the refrigerant storage chamber is connected to the refrigerant replenishment tank.

[0016] In some embodiments, a dust removal assembly is further provided on one side of the heat dissipation assembly. The dust removal assembly includes: a second swing arm, with the bottom end of the rotating shaft passing through the mounting plate and connected to one end of the second swing arm; a mounting rod, disposed on the bottom surface of the mounting plate; a second piston cylinder, disposed between the mounting rod and the second swing arm; a spiral tube, wound around the circumferential outer wall of the first piston cylinder, with one end of the spiral tube connected to the output end of the second piston cylinder through a one-way valve tube; a cleaning head, U-shaped, with the cleaning head cover disposed on one side of the cutter, and the cleaning head tube connected to the other end of the spiral tube; and multiple air outlets provided on the outer wall of the cleaning head.

[0017] The embodiments of the present invention have the following advantages. When cutting solid propellants, to improve the vibration of the cutting equipment's drive system, which makes it difficult for the cutting head to maintain a constant cutting amount during the cutting process, the traditionally integrated Z-axis and X-axis propulsion guides are separated. This avoids the problem of the integrated propulsion guide device easily generating mechanical resonance due to the increased number of mounting components, resulting in large swing amplitude of the guide rail for the cutting head and significant cutting head wobbling. In this embodiment, the X-axis guide system is separately mounted on the support assembly. Before the cutting experiment begins, the solid propellant is fixed on the clamping assembly. Utilizing the clamping assembly's extension and retraction characteristics in the Z-axis direction, the height of the solid propellant on the clamping assembly is adjusted to perform tool setting on the solid propellant. The guide system is then activated, causing the guide system to drive the cutting device to reciprocate along the X-axis direction of the guide system. When the cutting device reciprocates... After each cut, the clamping assembly is activated, causing the solid propellant to move upwards, thus adjusting the feed rate. This process is repeated to achieve continuous cutting of the solid propellant. The split-type X-axis guide rail system and the clamping assembly for adjusting the Z-axis height reduce vibration during the cutting process. By distributing mechanical loads and simplifying the motion path, the dynamic stability of the cutting device is enhanced. The explosion-proof enclosure improves experimental safety, preventing injury to personnel from accidental explosions of the solid propellant. The support assembly increases structural rigidity, suppressing the wobble of the cutter head during movement and ensuring high consistency in the cutting amount. Simultaneously, the independently driven Z-axis clamping assembly simplifies the feed rate adjustment mechanism. Progressive layered cutting is achieved through clamping assembly displacement, reducing system complexity and improving the controllability of the cutting process.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the experimental platform structure according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the platform structure according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of a cutting device structure according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of a guide rail system according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of a support assembly structure according to an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of a cutting device according to an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of a slider structure according to an embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram of a clamp assembly structure according to an embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram of the structure of a chip removal component according to an embodiment of the present invention.

[0029] Figure 10 This is a schematic diagram of an automatic lubrication assembly according to an embodiment of the present invention.

[0030] Figure label: 100 - Platform; 110 - Platform surface; 120 - Column; 130 - Annular sealing groove; 200 - Cutting equipment; 210-Guide rail system; 211-Cutting motor; 212-Lead screw; 213-Slide rail; 214-Slider; 2141-Guide channel; 2142-Refrigerant storage compartment; 215-Mounting block; 220 - Support assembly; 221 - Side plate; 222 - Top plate; 223 - Bearing; 224 - L-plate; 225 - Upright frame; 230 - Cutting device; 231 - Tool holder; 232 - Cutting tool; 240-Clamping assembly; 2401-Visher; 2402-Linear motor; 2403-U-shaped plate; 2404-Limiting wheel; 2405-Limiting plate; 2406-Angled groove; 2407-Mounting box; 2408-Limiting post; 2409-Limiting sleeve; 2410-Support plate; 250 - Heat dissipation assembly; 251 - Mounting plate; 252 - Shaft; 253 - L-rod; 254 - First rocker arm; 255 - First piston cylinder; 256 - Torsion spring; 257 - Inclined guide rail; 260 - Cleaning assembly; 261 - Second swing arm; 262 - Mounting rod; 263 - Second piston cylinder; 264 - Spiral tube; 265 - Cleaning head; 266 - Air outlet; 300-explosion-proof box; 400 - Automatic Lubrication Components; 410 - Cam; 420 - Contact plate; 430 - Reciprocating rod; 440 - Vertical plate; 450 - Spring; 460 - Piston pump. Detailed Implementation

[0031] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] As described above, in traditional solid propellant cutting experiments, the traditional cutting equipment uses a three-axis servo drive system. The servo slide rails of the three-axis servo drive system are integrated and installed together. This causes the integrated slide rail system to vibrate during the cutting process, resulting in fluctuations in cutting force, easy formation of thin-layer cutting slippage, and generation of additional surface stress. Tool vibration during the cutting process will lead to an increase in cutting depth, and insufficient rigidity of the fixture system will lead to chatter risk.

[0034] To at least partially address one or more of the aforementioned problems and other potential issues, an exemplary embodiment of the present invention provides an orthogonal cutting test bench suitable for solid propellants. The test bench includes: a platform 100 with an explosion-proof enclosure 300 hinged to one side of the platform 100 on its surface; a cutting device 200 disposed within the explosion-proof enclosure 300 on the surface of the platform 100; the cutting device 200 includes: a guide rail system 210 extending along the X-axis; a support assembly 220 disposed on the surface of the platform 100 with its top end for mounting the guide rail system 210; a cutting device 230 slidably disposed on the bottom surface of the guide rail system 210; and a clamp assembly 240 extending and retracting along the Z-axis, the clamp assembly 240 being disposed on the surface of the platform 100 below the guide rail system 210.

[0035] In the above embodiments, when cutting solid propellant, to improve the vibration of the drive system of the cutting device 200, which makes it difficult for the cutting amount of the cutter head to be constant during the cutting process, the traditional integrated Z-axis and X-axis propulsion guide rails are set separately. This avoids the situation where, due to the increase in mounting parts, most of the guide rail for the cutter head extends into another guide rail, causing mechanical resonance in the integrated propulsion guide rail device. At the same time, the guide rail for the cutter head has a large swing amplitude, and the cutter head shakes significantly. In this embodiment, the X-axis guide rail system 210 is installed separately on the bracket assembly 220. Before the cutting experiment begins, the solid propellant is fixed on the clamp assembly 240. By utilizing the extension and retraction characteristics of the clamp assembly 240 in the Z-axis direction, the height of the solid propellant on the clamp assembly 240 is adjusted to perform tool setting on the solid propellant. The guide rail system 210 is started, causing the guide rail system 210 to drive the cutting device 230 to slide back and forth along the X-axis direction of the guide rail system 210. When the cutting device 230... After one reciprocating cut, the clamp assembly 240 is activated, causing it to move the solid propellant upwards, thus adjusting the feed rate. This process is repeated to achieve continuous cutting of the solid propellant. The split-type X-axis guide rail system 210 and the clamp assembly 240, which adjusts the Z-axis height, reduce vibration during the movement of the cutting device 200 and the cutting device 230. By dispersing the mechanical load and simplifying the motion path, the dynamic stability of the cutting device 230 is enhanced. The explosion-proof box 300 improves experimental safety, preventing injury to personnel from accidental explosions of the solid propellant. The support assembly 220 increases structural rigidity, suppressing the oscillation amplitude of the cutter head during movement and ensuring high consistency in the cutting amount. Simultaneously, the independently driven Z-axis clamp assembly 240 simplifies the feed rate adjustment mechanism. Progressive layered cutting is achieved through the displacement of the clamp assembly 240, reducing system complexity and improving the controllability of the cutting process.

[0036] Please see Figures 1-9 In some embodiments, the platform 100 includes: a platform 110 for mounting the cutting equipment 200; a column 120 disposed on the bottom surface of the platform 110 for supporting the platform 110; wherein the column 120 is a hollow structure and the power supply equipment is installed inside the column 120; an annular sealing groove 130 disposed on the surface of the platform 110 and covering the outer periphery of the cutting equipment 200; and a sealing cover with an open bottom end, the bottom end of which is disposed within the annular sealing groove 130 and filled with inert gas.

[0037] In the above embodiment, the bottom surface of the column 120 can be fixed to the ground by means of flange connection, further reducing the problem of shaking when the cutting equipment 200 is working. The power supply equipment of the cutting equipment 200 is set inside the hollow column 120. A cooling fan for heat dissipation is installed on the column 120 to dissipate heat during the power supply process, so as to avoid the cutting equipment 200 being forced to shut down due to heat generation during the operation of the power supply equipment and affecting the normal progress of the cutting experiment. The annular sealing groove 130 set on the table surface 110 is used to seal the opening end of the sealing cover, and then inert gas can be filled in the sealing cover during the cutting experiment, further reducing the possibility of propellant deflagration during solid propellant cutting and improving the safety of the experiment. The explosion-proof box 300 set outside the sealing cover is installed on the outside of the sealing cover.

[0038] Please see Figures 1-9 In some embodiments, the guide rail system 210 includes: a cutting motor 211 mounted on the top of the bracket assembly 220; a lead screw 212, one end of which is connected to the cutting motor 211, and the other end of which is rotatably connected to the top of another bracket assembly 220; two sets of slide rails 213, which are symmetrically arranged on both sides of the lead screw 212 and parallel to the lead screw 212; two sets of sliders 214, which are slidably connected to the bottom surfaces of the two sets of slide rails 213 respectively; and a mounting block 215, which is located between the two sets of sliders 214, with both ends of the mounting block 215 connected to the adjacent surfaces of the two sets of sliders 214 respectively. The lead screw 212 passes through the mounting block 215, and the mounting block 215 slides along the lead screw 212. A plurality of balls are filled between the lead screw 212 and the mounting block 215.

[0039] In the above embodiment, the guide rail system 210 is driven by the cutting motor 211. During the cutting process, the output shaft of the cutting motor 211 continuously drives the lead screw 212 to rotate. During the rotation of the lead screw 212, the ball bearings filling the space between the mounting block 215 and the lead screw 212 circumferentially roll to transmit power, thereby driving the mounting block 215 to slide along the axial direction of the lead screw 212 on the outer wall of the circumference. During the sliding process of the mounting block 215, the sliders 214 on both sides limit the mounting block 215, thereby eliminating radial offset or torsion that may be caused by the rotation of the lead screw 212 and ensuring the movement. The high repeatability of the trajectory prevents nonlinear motion caused by load eccentricity. The slide rail 213 directly bears the radial force and overturning moment, reducing the non-axial load on the lead screw 212 and avoiding the deterioration of the lead screw 212's accuracy and lifespan due to lateral force. The high rigidity structure of the slide rail 213 absorbs the high-frequency vibration during the drive process of the lead screw 212, reduces external disturbances during the cutting process of the cutting device 230, and maintains the stability of the movement. When the lead screw 212 fails to transmit power, the sliding pair formed by the slide rail 213 and the slider 214 can still provide an emergency guiding function to prevent the cutting device 230 from falling due to uncontrolled load.

[0040] Please see Figures 1-9 In some embodiments, the support assembly 220 includes: side plates 221, at least two sets, with the two sets of side plates 221 respectively disposed at both ends of the two sets of slide rails 213; a top plate 222, disposed between the two sets of side plates 221, with the two sets of slide rails 213 spaced apart and installed on the bottom surface of the top plate 222; bearings 223, at least two sets, with the inner rings of the two sets of bearings 223 respectively connected to both ends of the lead screw 212; L-plates 224, at least two sets, with one side of the L-plate 224 used to install the bearings 223; wherein one end of the lead screw 212 passes through the bearings 223 on the L-plate 224 and is connected to a cutting motor 211; the cutting motor 211 is installed on the side of the L-plate 224 away from the lead screw 212; and uprights 225, two sets, with the top ends of the two sets of uprights 225 respectively installed on the side of the two sets of L-plates 224 away from the bearings 223, and the uprights 225 are installed on the surface of the platform 100.

[0041] In the above embodiment, the support assembly 220 is used to improve its own structural strength and rigidity, and further improve the vibration problem of the cutting device 230 during the cutting process. The bearing 223 is installed on the L plate 224. When the cutting motor 211 drives the lead screw 212 to rotate, the two ends of the lead screw 212 are at the inner ring of the bearing 223. The outer ring of the bearing 223 is installed in the hole on the L plate 224. The bottom end of the stand 225 is fixed to the surface of the platform 100. The top plate 222 is used to install the slide rail 213. The slide rail 213 is fixed by the top plate 222 and the side plate 221.

[0042] Please see Figures 1-9 In some embodiments, the cutting device 230 includes: a tool holder 231, the top end of which is mounted at the center of the bottom surface of the mounting block 215; and a cutter 232, which is detachably mounted at the bottom end of the tool holder 231, and the cutting direction of the cutter 232 is parallel to the axial direction of the lead screw 212.

[0043] In the above embodiment, one end of the handle 231 is fixed to the bottom surface of the mounting block 215, and one end of the cutter 232 is mounted on the bottom end of the handle 231. The cutter 232 is fixed by the handle 231. When the cutting motor 211 starts and the mounting block 215 is driven to move on the lead screw, the mounting block 215 drives the handle 231 and the cutter 232 to move along the axial direction of the lead screw, and then the solid propellant is cut by the cutter 232.

[0044] Please see Figures 1-9In some embodiments, the clamping assembly 240 includes: a linear motor 2402 mounted on the surface of the platform 100; a U-shaped plate 2403, with the telescopic end of the linear motor 2402 located within the opening of the U-shaped plate 2403; multiple limiting wheels 2404 spaced apart on both sides of the outer wall of the U-shaped plate 2403; two sets of limiting plates 2405 slidably disposed on both sides of the U-shaped plate 2403 in a vertical direction; and multiple inclined grooves 2406 spaced apart on the surface of the limiting plates 2405, each inclined groove 2406 corresponding to one of the limiting wheels 2404. Correspondingly, there is a mounting box 2407, which is installed on the surface of the platform 100 with its opening facing upwards, and a limiting plate 2405 that slides along the inner wall of the mounting box 2407; multiple limiting posts 2408 are provided, and the multiple limiting posts 2408 are evenly distributed on the inner bottom surface of the mounting box 2407; multiple limiting sleeves 2409 are provided, and the multiple limiting sleeves 2409 are slidably fitted onto the top of each limiting post 2408; a support plate 2410 is provided on the surface of the two sets of limiting plates 2405, and each limiting sleeve 2409 is connected to the bottom surface of the support plate 2410; and a vise 2401 is installed on the surface of the support plate 2410 and is used to grip solid propellant.

[0045] In the above embodiment, when aligning the solid propellant to be tested, the linear motor 2402 is started. The output shaft of the linear motor 2402 extends and retracts, driving the U-shaped plate 2403 and the limiting wheel 2404 to move between the two limiting plates 2405. When the limiting wheel 2404 moves, it slides within the inclined groove 2406 of the limiting plate 2405, and then pushes the limiting plate 2405 upwards. The limiting post 2408 and the limiting sleeve 2409 are used to restrict the vertical movement of the support plate 2410, thereby... The support plate 2410 pushes the vise 2401 and the solid propellant inside the vise 2401 closer to the cutter 232, achieving the alignment of the solid propellant. During cutting, when the cutter 232 passes the solid propellant, it cuts the surface of the solid propellant. Then the cutter 232 resets. When cutting again, the linear motor 2402 is started to drive the solid propellant to move upward. The cutting amount is adjusted by extending and retracting the output end of the linear motor 2402, so that when the cutter 232 passes the solid propellant again, it can further cut the solid propellant.

[0046] Please see Figures 1-9In some embodiments, a heat dissipation assembly 250 is also provided on one side of the clamp assembly 240; the heat dissipation assembly 250 includes: a mounting plate 251, disposed on a bracket assembly 220 at the end away from the cutting motor 211, the mounting plate 251 being spaced apart from the surface of the platform 100; a rotating shaft 252, rotatably disposed on the mounting plate 251, the rotating shaft 252 being vertically disposed; an L-rod 253, one end of which is rotatably disposed at the top of the rotating shaft 252, the end of the L-rod 253 connected to the rotating shaft 252 being perpendicular to the rotating shaft 252; a first swing arm 254, one end of which is connected to the end of the rotating shaft 252 near the mounting plate 251; and a first piston cylinder 255, disposed at the end of the first swing arm 254 away from the rotating shaft 252. And between the end of L rod 253 away from the rotating shaft 252; the mounting end of the first piston cylinder 255 is connected to the first rocker arm 254, and the piston rod of the first piston cylinder 255 is connected to the L rod 253; wherein the input end of the working chamber of the first piston cylinder 255 is connected to the refrigerant replenishment tank through a one-way valve pipe, and the output end is connected to the slider 214 through a one-way valve pipe; torsion spring 256 is sleeved around the rotating shaft 252, one end of torsion spring 256 is connected to the upper mounting plate 251, and the other end is connected to the rotating shaft 252; inclined guide rail 257 is located at the lower part of L rod 253, one end of inclined guide rail 257 is mounted on the bracket assembly 220, and inclined guide rail 257 is located on the swing stroke of L rod 253 around the rotating shaft 252.

[0047] In the above embodiment, the heat dissipation component 250 is used to cooperate with the movement of the slider 214 to dissipate heat from the slider 214 and the slide rail 213. This improves the problem that due to repeated cutting, the slider 214 and the slide rail 213 rub against each other, causing the slide rail 213 to heat up and locally deform due to thermal expansion and contraction, resulting in slight vibration of the slider 214 during movement. When the heat dissipation component 250 is working, the slider 214 and the mounting block 215 drive the tool holder 231 to move. When the solid propellant is cut by the cutter 232, when... When slider 214 reaches one side of L-rod 253, slider 214 continues to move, pushing L-rod 253 to rotate shaft 252. Simultaneously, it causes one end of torsion spring 256 to twist on the surface of shaft 252. Torsion spring 256 stores force. During the movement of L-rod 253, because of the inclined guide rail 257 at the lower part of L-rod 253, when L-rod 253 moves on the inclined guide rail 257, it is supported by the inclined guide rail 257. One end of L-rod 253 rotates on the top of shaft 252, causing L-rod 253 to... The other end drives the piston rod of the first piston cylinder 255 to slide within the working chamber of the first piston cylinder 255, thus expanding the working chamber of the first piston cylinder 255. Refrigerant from the refrigerant replenishment tank is drawn into the working chamber of the first piston cylinder 255 through the liquid inlet pipe. When the slider 214 resets, the slider 214 gradually moves away from the L-rod 253. During the reset process, the torsion spring 256 drives the rotating shaft 252 to rotate. During the rotation of the rotating shaft 252, the L-rod 253 and the first rocker arm 254 rotate around the axis of the rotating shaft 252 to reset. The L-rod 253 moves along... As the inclined guide rail 257 gradually returns to its original position, the piston rod compresses the refrigerant in the working chamber of the first piston cylinder 255 during the resetting process and discharges it through a pipe to the space between the slider 214 and the slide rail 213 to dissipate heat from the slider 214 and the slide rail 213. At the same time, a return pipe is provided on the slider 214 to collect the refrigerant. Finally, the refrigerant is discharged to the heat exchange structure through the return pipe, where the refrigerant in the return pipe is dissipated. The refrigerant after heat exchange through the heat exchange structure is then replenished into the refrigerant replenishment tank for refrigerant circulation.

[0048] Please see Figures 1-9 In some embodiments, the slider 214 has a serpentine flow channel 2141 on the side near the slide rail 213; the slider 214 has a refrigerant storage chamber 2142 inside, and the two ends of the flow channel 2141 are respectively connected to the refrigerant storage chamber 2142; the input end pipe of the refrigerant storage chamber 2142 is connected to the output end of the first piston cylinder 255, and the output end pipe of the refrigerant storage chamber 2142 is connected to the refrigerant replenishment tank.

[0049] In the above embodiment, when the refrigerant in the first cylinder 255 enters the slider 214, the refrigerant is stored in the refrigerant storage chamber 2142 inside the slider 214 and dissipates heat from the entire slider 214. After passing through the refrigerant storage chamber 2142 inside the slider 214, it enters the guide groove 2141 on the surface of the slider 214. After passing through the guide groove 2141, it cools the contact surface between the slide rail 213 and the slider 214, thereby improving the problem of uneven contact surface caused by local thermal expansion and contraction of the slide rail 213 due to long-term cutting work.

[0050] Please see Figures 1-9 In some embodiments, a dust removal assembly 260 is also provided on one side of the heat dissipation assembly 250. The dust removal assembly 260 includes: a second swing arm 261, with the bottom end of the rotating shaft 252 passing through the mounting plate 251 and connected to one end of the second swing arm 261; a mounting rod 262, disposed on the bottom surface of the mounting plate 251; a second piston cylinder 263, disposed between the mounting rod 262 and the second swing arm 261; a spiral tube 264, wrapped around the outer wall of the first piston cylinder 255, with one end of the spiral tube 264 connected to the output end of the second piston cylinder 263 through a one-way valve tube; a cleaning head 265, which is U-shaped and covers one side of the cutter 232, with the cleaning head 265 tube connected to the other end of the spiral tube 264; and a plurality of air outlets 266 provided on the outer wall of the cleaning head 265.

[0051] In the above embodiment, when the rotating shaft 252 is pushed to rotate by the L-rod 253, the bottom end of the rotating shaft 252 pushes the second swing rod 261 to swing around the rotating shaft 252, thereby increasing the distance between the end of the second swing rod 261 and the mounting rod 262, and driving the working chamber of the second piston cylinder 263 between the mounting rod 262 and the second swing rod 261 to continue to expand and expand to draw in air. The air inlet end of the second piston cylinder 263 can be connected to an inert gas storage device through a one-way valve pipe. When the rotating shaft 252 is reset by the torsion spring 256, it pushes the second piston cylinder 263 to squeeze the inert gas extracted inside, so that the inert gas is discharged into the spiral tube 264. After passing through the spiral tube 264, the first piston cylinder 263... The coolant extracted from the 55 tube cools the inert gas inside the spiral tube 264. The inert gas is then blown onto the solid propellant through the air outlet 266 on the cleaning head 265. As the cutter 232 resets, it passes over the solid propellant, thus completing the removal of solid propellant debris from the surface of the solid propellant. This prevents the cutter 232 from contacting the debris during reset, squeezing the debris onto the surface of the solid propellant, and causing the debris to become embedded in the solid propellant. At the same time, the inert gas cooled by the spiral tube 264 can also blow air to dissipate heat from the surface of the solid propellant that has been cut. Some of the air outlets on the cleaning head 265 are directed towards the cutter, allowing the inert gas to also dissipate heat from the cutter.

[0052] Please see Figure 10In some embodiments, the bottom end of the rotating shaft 252 is provided with an automatic lubrication assembly 400, which includes: a cam 410, the surface of which is connected to the bottom end face of the rotating shaft 252; a contact plate 420, disposed on one side of the cam 410, one side of which abuts against the circumferential outer wall of the cam 410; a reciprocating rod 430, horizontally disposed, one end of which is connected to the side of the contact plate 420 away from the cam 410; and a vertical plate 440, disposed on the side of the contact plate 420 away from the cam 410. A spring 450 is installed through the vertical plate 440; the spring 450 is located between the contact plate 420 and the vertical plate 440 and is sleeved on the circumferential outer wall of the reciprocating rod 430; a plunger pump 460 with a double one-way valve oil circuit is provided; the piston plate of the plunger pump 460 is connected to the end of the reciprocating rod 430 away from the contact plate 420; the two-way single valve oil circuit includes an inlet valve and an outlet valve; the inlet valve is connected to the silicone oil storage tank; the outlet valve is connected to the atomizing nozzle; the atomizing nozzle is located on the outside of one end of the lead screw 212; the output end of the atomizing nozzle is set towards the circumferential outer wall of the lead screw 212.

[0053] In the above embodiment, when the rotating shaft 252 is driven and rotated, the cam 410 rotates around the axial direction of the rotating shaft 252. The end of the cam 410 moves, and under the influence of the spring force of the spring 450, the spring 450 pushes the contact plate 420 to always be in contact with the circumferential outer wall of the cam 410. When the end of the cam 410 makes a circular motion around the axis of the rotating shaft 252, the contact plate 420 drives the reciprocating rod 430 to move, so that the internal working chamber of the plunger pump 460 works, and the oil inlet valve draws lubricating silicone oil from the silicone oil storage tank. When the reciprocating rod 430 moves in the opposite direction, the internal working chamber of the plunger pump 460 works again, compresses the lubricating silicone oil drawn in the working chamber, and delivers the lubricating silicone oil to the atomizing nozzle through the pipeline. The atomizing nozzle sprays the lubricating silicone oil onto the circumferential outer wall of the lead screw 212, thereby lubricating the guide rail system 210.

[0054] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

[0055] The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the various embodiments, or to enable those skilled in the art to understand the embodiments disclosed herein.

[0056] The above are merely optional embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An orthogonal cutting test rig suitable for solid propellants, characterized in that, include: The platform (100) has an explosion-proof box (300) hinged to one side of the platform (100) on its surface. The cutting equipment (200) is located inside the explosion-proof box (300) on the surface of the platform (100); The cutting equipment (200) includes: A guide rail system (210) extending along the X-axis. A bracket assembly (220) is disposed on the surface of the platform (100), and the top end is used to mount the guide rail system (210). The cutting device (230) is slidably disposed on the bottom surface of the guide rail system (210); as well as A clamp assembly (240) that extends and retracts along the Z-axis is disposed on the surface of the platform (100) at the lower part of the guide rail system (210).

2. The orthogonal cutting test rig suitable for solid propellants according to claim 1, characterized in that, The platform (100) includes: A table (110) with a surface for mounting the cutting equipment (200); A column (120) is provided on the bottom surface of the platform (110) to support the platform (110); wherein The platform (120) is a hollow structure, and the power supply equipment is installed inside the platform (120); An annular sealing groove (130) is provided on the surface of the table (110), and the annular sealing groove (130) covers the outer periphery of the cutting equipment (200); The sealing cover has an open bottom end, and the bottom end of the sealing cover is located in the annular sealing groove (130). The sealing cover is filled with inert gas.

3. The orthogonal cutting test rig suitable for solid propellants according to claim 1, characterized in that, The guide rail system (210) includes: A cutting motor (211) is mounted on the top of the bracket assembly (220); The lead screw (212) is connected at one end to the cutting motor (211) and at the other end to the top of another support assembly (220); The slide rail (213) is provided in two sets. The two sets of slide rail (213) are symmetrically arranged on both sides of the lead screw (212) and are parallel to the lead screw (212). The slider (214) is provided in two sets, and the two sets of sliders (214) are respectively slidably connected to the bottom surfaces of the two sets of slide rails (213); The mounting block (215) is located between the two sets of sliders (214). The two ends of the mounting block (215) are respectively connected to the adjacent surfaces of the two sets of sliders (214). The lead screw (212) passes through the mounting block (215) and slides along the lead screw (212). A number of balls are filled between the lead screw (212) and the mounting block (215).

4. The orthogonal cutting test rig suitable for solid propellants according to claim 3, characterized in that, The support assembly (220) includes: The side plate (221) is provided in at least two sets, and the two sets of side plates (221) are respectively provided at both ends of the two sets of slide rails (213); A top plate (222) is disposed between the two sets of side plates (221), and two sets of slide rails (213) are installed at intervals on the bottom surface of the top plate (222); The bearing (223) is provided in at least two sets, and the inner rings of the two sets of bearings (223) are respectively connected to the two ends of the lead screw (212); At least two sets of L-plates (224) are provided, one side of which is used to mount the bearing (223); wherein One end of the lead screw (212) is disposed through the bearing (223) on the L plate (224) and connected to the cutting motor (211). The cutting motor (211) is mounted on the side of the L-plate (224) away from the lead screw (212); The support frame (225) is provided in two sets. The top of the two sets of the support frame (225) is respectively installed on the side of the L plate (224) away from the bearing (223). The support frame (225) is installed on the surface of the platform (100).

5. The orthogonal cutting test rig suitable for solid propellants according to claim 3, characterized in that, The cutting device (230) includes: The top end of the handle (231) is mounted on the center of the bottom surface of the mounting block (215); The cutter (232) is detachably mounted on the bottom end of the handle (231), and the cutting direction of the cutter (232) is parallel to the axial direction of the lead screw (212).

6. The orthogonal cutting test rig suitable for solid propellants according to claim 1, characterized in that, The clamp assembly (240) includes: A linear motor (2402) is mounted on the surface of the platform (100); The U-shaped plate (2403) has its telescopic end located inside the opening of the linear motor (2402). Multiple limiting wheels (2404) are provided, and the multiple limiting wheels (2404) are spaced apart on both sides of the outer wall of the U-shaped plate (2403); The limiting plate (2405) is provided in two sets, and the two sets of the limiting plate (2405) are slidably disposed on both sides of the U-shaped plate (2403) in the vertical direction; Multiple inclined grooves (2406) are provided, and the multiple inclined grooves (2406) are spaced apart on the surface of the limiting plate (2405). Each inclined groove (2406) corresponds to each limiting wheel (2404). Mounting box (2407) is mounted on the surface of the platform (100), with the opening of the mounting box (2407) facing upward, and the limiting plate (2405) sliding along the inner wall of the mounting box (2407); Multiple limiting posts (2408) are provided, and the multiple limiting posts (2408) are evenly distributed on the bottom surface of the mounting box (2407); Multiple limiting sleeves (2409) are provided, and the multiple limiting sleeves (2409) are respectively slidably sleeved on the top of each limiting post (2408); A support plate (2410) is disposed on the surface of the two sets of limiting plates (2405), and each of the limiting sleeves (2409) is connected to the bottom surface of the support plate (2410); A vise (2401) is mounted on the surface of the support plate (2410) and is used to grip solid propellant.

7. The orthogonal cutting test rig suitable for solid propellants according to claim 1, characterized in that, A heat dissipation component (250) is also provided on one side of the clamp assembly (240); The heat dissipation assembly (250) includes: Mounting plate (251) is disposed on bracket assembly (220) at one end away from the cutting motor (211), and mounting plate (251) is spaced apart from the surface of platform (100); A rotating shaft (252) is rotatably mounted on the mounting plate (251), and the rotating shaft (252) is vertically arranged; L-rod (253), one end of which is rotatably mounted on the top of the rotating shaft (252), and the end of the L-rod (253) connected to the rotating shaft (252) is perpendicular to the rotating shaft (252); The first swing arm (254) is connected at one end to the end of the rotating shaft (252) near the mounting plate (251); The first piston cylinder (255) is located between the end of the first rocker arm (254) away from the rotating shaft (252) and the end of the L rod (253) away from the rotating shaft (252); The mounting end of the first piston cylinder (255) is connected to the first rocker arm (254), and the piston rod of the first piston cylinder (255) is connected to the L rod (253); wherein The working chamber input end of the first piston cylinder (255) is connected to the refrigerant replenishment tank through a one-way valve pipe, and the output end is connected to the slider (214) through a one-way valve pipe. A torsion spring (256) is sleeved around the rotating shaft (252). One end of the torsion spring (256) is connected to the mounting plate (251), and the other end is connected to the rotating shaft (252). An inclined guide rail (257) is provided at the lower part of the L rod (253). One end of the inclined guide rail (257) is mounted on the bracket assembly (220). The inclined guide rail (257) is located on the swing stroke of the L rod (253) around the rotating shaft (252).

8. The orthogonal cutting test rig suitable for solid propellants according to claim 7, characterized in that, The slider (214) has a serpentine arrangement of guide grooves (2141) on the side near the slide rail (213). The slider (214) is provided with a refrigerant storage chamber (2142), and the two ends of the guide channel (2141) are respectively connected to the refrigerant storage chamber (2142). The input pipe of the refrigerant storage compartment (2142) is connected to the output end of the first piston cylinder (255), and the output pipe of the refrigerant storage compartment (2142) is connected to the refrigerant replenishment tank.

9. The orthogonal cutting test rig suitable for solid propellants according to claim 7, characterized in that, A dust removal component (260) is also provided on one side of the heat dissipation component (250), the dust removal component (260) comprising: The second swing arm (261) has its bottom end passing through the mounting plate (251) and connected to one end of the second swing arm (261); Mounting rod (262) is provided on the bottom surface of mounting plate (251); The second piston cylinder (263) is located between the mounting rod (262) and the second rocker arm (261); A spiral tube (264) is wound around the outer circumferential wall of the first piston cylinder (255), and one end of the spiral tube (264) is connected to the output end of the second piston cylinder (263) through a one-way valve tube; The cleaning head (265) is U-shaped and covers one side of the cutter (232). The cleaning head (265) is connected to the other end of the spiral tube (264). The outer wall of the cleaning head (265) is provided with multiple air outlets (266).

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