CN118130031B - Shock resistance testing device for machine tool protective cover - Google Patents
Shock resistance testing device for machine tool protective cover Download PDFInfo
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- CN118130031B CN118130031B CN202410557362.4A CN202410557362A CN118130031B CN 118130031 B CN118130031 B CN 118130031B CN 202410557362 A CN202410557362 A CN 202410557362A CN 118130031 B CN118130031 B CN 118130031B
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000001681 protective effect Effects 0.000 title claims abstract description 28
- 230000035939 shock Effects 0.000 title claims description 6
- 230000000670 limiting effect Effects 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 2
- 238000009863 impact test Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 10
- 239000002173 cutting fluid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses an impact resistance testing device of a machine tool protective cover, which belongs to the field of impact resistance testing, and comprises a base, wherein a rotatable first baffle and a second baffle welded on the base are assembled on the upper surface of the base, a multistage motor with adjustable rotating speed is installed on the side surface of the base through bolts, a connecting rod assembly is assembled on an output shaft of the multistage motor, and a testing assembly is assembled on the right side of the connecting rod assembly; the testing assembly comprises a cylindrical hollow shell assembled on the connecting rod assembly, and a five-channel hollow shell matched with the five through openings is fixed in the cylindrical hollow shell. According to the application, the protection cover is tested by arranging the connecting rod assembly capable of automatically adjusting the length and the test assembly capable of irregularly throwing the impact block, so that multi-angle and multi-area batch impact tests can be realized, the impact area is uncontrollable, the randomness is strong, and the test result is more realistic.
Description
Technical Field
The application relates to the field of impact resistance testing, in particular to a machine tool protective cover impact resistance testing device.
Background
The lathe is mainly used for turning a rotating workpiece by the lathe tool, and the machine tool protective cover is a common part on the lathe tool and is used for protecting fragile parts in the lathe tool and preventing damage caused by external force. The tool on the machine tool is easy to fatigue fracture after long-term use, so that the tool is broken and flies, and a certain degree of impact damage is caused to the machine tool protective cover, so that the impact resistance of the machine tool protective cover directly determines the external safety of the machine tool, and the impact resistance test of the machine tool protective cover is one of important links of quality detection in the process of producing the machine tool protective cover.
The invention patent with publication number CN116164924B discloses an impact resistance testing device for a machine tool protective cover, which comprises a base, a protective cover side guard plate, a protective cover top guide plate and the like; two protection casing side protection plates are fixedly connected to the base, and a protection casing top guide plate is fixedly connected between the two protection casing side protection plate tops. Above-mentioned application adopts centrifugal force as trigger force to control the impact block and strikes the protection casing, realizes the detection effect, but its a plurality of impact blocks adopt and trigger simultaneously and strike, lead to its area of can striking very singleness, this just leads to having the production of detecting blind area, consequently can lead to influencing the accuracy of detection data.
Disclosure of Invention
The invention solves the problems that in the prior art, centrifugal force is used as trigger force to control the impact blocks to impact the protective cover so as to realize the detection effect, but a plurality of impact blocks are triggered to impact simultaneously, so that the impact area is very single, the generation of detection dead zones is caused, and the accuracy of detection data is influenced. Therefore, the invention provides the shock resistance testing device for the machine tool protective cover, which can realize the wide impact detection of multiple angles and multiple areas and ensure the accuracy of experimental data.
In order to achieve the aim, the application provides an impact resistance testing device for a machine tool protective cover, which comprises a base, wherein the upper surface of the base is provided with a rotatable first baffle plate and a second baffle plate welded on the base, the side surface of the base is provided with a multistage motor with adjustable rotating speed through bolts,
The output shaft of the multistage motor is provided with a connecting rod assembly, and the right side of the connecting rod assembly is provided with a testing assembly;
the testing assembly comprises a cylindrical hollow shell assembled on a connecting rod assembly, five through openings are formed in the middle inner end of the cylindrical hollow shell, a five-channel hollow shell matched with the five through openings is fixedly arranged in the cylindrical hollow shell, a third baffle which is connected and detachable through bolts is assembled at the front end of the five-channel hollow shell, a first connecting block provided with a threaded hole is fixedly arranged in one channel of the five-channel hollow shell, impact blocks are movably connected in the other four channels of the five-channel hollow shell, a triggering assembly is arranged in the area, close to the four impact blocks, of the outer side of the five-channel hollow shell, of the triggering assembly, a hydraulic pipeline is fixedly arranged on the outer side of the five-channel hollow shell, penetrates through a hollow limiting plate which is slidably connected in the five-channel hollow shell through an elastic sheet, a liquid storage bag body positioned in the five-channel hollow shell is communicated with one inner end of the hydraulic pipeline, a movement route of the hydraulic push rod is positioned in the middle area of the hollow limiting plate, the five-channel hollow shell is fixedly provided with a winding reel through the central area, and is connected with a winding reel through the central winding reel, and the winding reel is connected with a winding reel through the central winding reel.
Preferably, a track is fixed in the middle of the upper surface of the base, and two support rods for supporting are connected inside the track in a sliding manner.
Preferably, the inside of hollow limiting plate has seted up the rectangle and has run through the groove, and hydraulic push rod's top is inclined plane structure, hydraulic push rod's inclined plane structure laminating hollow limiting plate runs through inner wall one side in groove. The hollow limiting plate is used for limiting the movement of the impact block, and when the hydraulic push rod moves upwards, the inclined surface area of the hydraulic push rod can extrude the hollow limiting plate to move so as to release the limiting effect on the impact block and enable the impact block to be punched out quickly.
Preferably, the back of the cylindrical hollow shell is provided with three groups of air inlets which are arranged in an annular array shape, and each air inlet is fixedly provided with an air deflector. When the cylindrical hollow shell rotates, external air is guided into the cylindrical hollow shell under the action of the air deflector and then is sprayed out from the other end, so that an air film effect is formed, and sundries are prevented from entering the cylindrical hollow shell.
Preferably, the connecting rod assembly comprises a hollow rod body assembled on the output shaft of the multistage motor, the inside of the hollow rod body is slidably connected with a movable rod, a bearing rotationally connected inside the second baffle is assembled outside the hollow rod body, a plurality of hollow blocks are fixedly arranged outside the hollow rod body, each hollow block is internally and slidably connected with a gravity sliding block, a pipeline communicated with the inside of the hollow rod body is embedded in the outer side of each hollow block, and a multistage elastic pneumatic telescopic rod is assembled between each pipeline and the gravity sliding block. The hollow rod body is driven to rotate by the output shaft of the multistage motor, the centrifugal force is controlled by changing the rotating speed, the gravity sliding blocks extrude the multistage elastic air pressure telescopic rods in batches, the multistage elastic air pressure telescopic rods in batches extrude the multistage elastic air pressure telescopic rods in batches, and the internal air of the multistage elastic air pressure telescopic rods can be fed into the hollow rod body in batches to stretch out the control movable rods in batches, so that the effect of moving the control test components in batches is realized.
Preferably, one of the support rods in the track is rotationally connected with the outer side of the cylindrical hollow shell, the other support rod in the track is rotationally connected with a spraying assembly, the spraying assembly comprises a rotary joint, a plurality of irregularly-oriented spray heads are connected to the rotary joint, a second connecting block is fixed to the side face of the rotary joint, and a plurality of L-shaped connecting grooves are formed in the second connecting block. The rotary joint is externally connected with a cutting fluid conveying pipeline, and then the sealing performance of the lathe during turning operation can be simulated by spraying the cutting fluid.
Preferably, a plurality of third connecting blocks matched with the connecting grooves are fixed on one side of the cylindrical hollow shell, which is close to the second connecting blocks. The setting of third connecting block can connect rotary joint and cylindrical hollow shell through the spread groove on the cooperation second connecting block.
The application has the advantages that:
(1) According to the application, the protection cover is tested by arranging the connecting rod assembly capable of automatically adjusting the length and the test assembly capable of irregularly throwing the impact block, so that multi-angle and multi-area batch impact tests can be realized, the impact area is uncontrollable, the randomness is strong, and the test result is more realistic.
(2) According to the application, the spray assembly is arranged to simulate the working condition of the lathe when the lathe is in turning operation, and the working condition of the cutting fluid is added to be matched with the lathe, so that the sealing performance of the protective cover can be intuitively observed, and meanwhile, the spray heads with irregular orientations are arranged, so that the spray area is more comprehensive, and a spray blind area is not generated.
(3) According to the application, the air inlet is formed in the side surface of the cylindrical hollow shell, the air deflector is assembled, external air is guided into the cylindrical hollow shell under the action of the air deflector, and then is sprayed out from the other end, so that the effect of an air film is formed, sundries and cutting fluid which is dripped after spraying are prevented from entering the cylindrical hollow shell, and the effect of protecting parts in the cylindrical hollow shell is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall partial structure of the present invention;
FIG. 3 is a schematic illustration of the positional relationship of the connecting rod assembly, the testing assembly, and the spray assembly of the present invention;
FIG. 4 is a schematic cross-sectional view of a test assembly of the present invention;
FIG. 5 is a schematic view of a portion of the structure of a test assembly of the present invention;
FIG. 6 is a schematic view of a portion of the structure of a test assembly of the present invention;
FIG. 7 is a schematic view of the trigger assembly of the present invention;
FIG. 8 is a schematic view of the structure of the hollow restrictor plate of the present invention;
FIG. 9 is a schematic view of the external structure of the test assembly of the present invention;
FIG. 10 is a schematic cross-sectional view of the tie rod assembly of the present invention;
FIG. 11 is a schematic view of a portion of the construction of the tie rod assembly of the present invention;
fig. 12 is a schematic view of the structure of the spray assembly of the present invention.
In the above-mentioned figures of the drawing,
100. A base; 200. a first baffle; 300. a second baffle; 400. a protective cover; 500. a multi-stage motor;
600. a track; 610. a support rod;
700. A connecting rod assembly; 710. a hollow rod body; 720. a bearing; 730. a movable rod; 740. a hollow block; 750. a pipe; 760. a multi-stage elastic pneumatic telescopic rod; 770. a gravity slide block;
800. a testing component; 810. a cylindrical hollow housing; 811. a third connecting block; 820. five-channel hollow shell; 830. a third baffle; 840. a first connection block; 850. a reel; 860. a trigger block; 870. an impact block; 880. a trigger assembly; 881. a hydraulic conduit; 882. a reservoir body; 883. a hydraulic push rod; 884. a hollow limiting plate; 890. an air inlet; 8100. an air deflector;
900. a spray assembly; 910. a rotary joint; 920. a spray head; 930. a second connection block; 940. and a connecting groove.
Detailed Description
In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present application with reference to the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Examples
Referring to fig. 1-8, the present embodiment provides an impact resistance testing device for a machine tool protection cover, comprising a base 100, wherein a rotatable first baffle 200 and a second baffle 300 welded on the base 100 are assembled on the upper surface of the base 100, rubber sealing gaskets are arranged on the first baffle 200 and the second baffle 300, the first baffle 200 is arranged in a rotatable state, in order to facilitate assembling of the protection cover 400, the protection cover 400 of a lathe is generally connected on a lathe slide rail through sliding, thus a slide rail is also arranged on fig. 2, the protection cover 400 is connected in a sliding way, a multistage motor 500 with adjustable rotation speed is arranged on the side surface of the base 100 through bolts,
The output shaft of the multistage motor 500 is equipped with a link assembly 700, the right side of the link assembly 700 is equipped with a test assembly 800, the connecting rod assembly 700 includes a hollow rod body 710 fitted to the output shaft of the multistage motor 500, the hollow rod body 710 is slidably connected with a movable rod 730, the hollow rod body 710 is externally provided with a bearing 720 rotatably connected with the inside of the second baffle 300, is connected with the second baffle 300 through the bearing 720, friction loss between the hollow rod body 710 and the second barrier 300 can be effectively avoided, simultaneously, the hollow rod body 710 can be more stable when rotating by adopting the connection of the bearings 720, a plurality of hollow blocks 740 are fixed outside the hollow rod body 710, a gravity sliding block 770 is slidingly connected in each hollow block 740, a pipeline 750 communicated with the inside of the hollow rod body 710 is embedded at the outer side of each hollow block 740, a multi-stage elastic air pressure telescopic rod 760 is assembled between each pipeline 750 and the gravity sliding block 770, when the hollow rod body 710 rotates under the control of the multi-stage motor 500, the gravity slider 770 presses the multi-stage elastic air pressure telescoping rod 760 under the action of gravity, and as the rotation speed changes, the centrifugal force changes with respect to the generated centrifugal force, further, the degree to which the gravity slider 770 presses the multi-stage elastic air pressure telescopic rod 760 is changed, the hollow rod 710 is driven to rotate by the output shaft of the multi-stage motor 500, the centrifugal force is controlled by changing the rotating speed, so that the gravity slide block 770 extrudes the multi-stage elastic air pressure telescopic rods 760 in batches, the internal gas can be fed into the hollow rod body 710 in batches to control the extension of the movable rod 730 in batches, so as to realize the effect of controlling the movement of the test assembly 800 in batches;
The test assembly 800 comprises a cylindrical hollow shell 810 assembled on the connecting rod assembly 700, five through openings are formed in the middle end of the interior of the cylindrical hollow shell 810, a five-channel hollow shell 820 matched with the five through openings is fixed in the interior of the cylindrical hollow shell 810, a third baffle 830 which is connected and detachable through bolts is assembled at the front end of the five-channel hollow shell 820, a first connecting block 840 provided with a threaded hole is fixed in one channel of the five-channel hollow shell 820, impact blocks 870 are movably connected in the other four channels of the five-channel hollow shell 820, a triggering assembly 880 is assembled in the area, close to the four impact blocks 870, of the outer side of the five-channel hollow shell 820, the triggering assembly 880 comprises a hydraulic pipeline 881 fixed at the outer side of the five-channel hollow shell 820, a hollow limiting plate 884 penetrating and connected in the five-channel hollow shell 820 through a shrapnel sliding mode, the inner end of the hydraulic pipeline 881 is communicated with a liquid storage bag body 882 positioned in the five-channel hollow shell 820, the other end of the inner part of the hydraulic pipeline 881 is connected with a hydraulic push rod 883 in a sliding manner, the movement route of the hydraulic push rod 883 is positioned in the middle area of the hollow limit plate 884, a rectangular through groove is formed in the inner part of the hollow limit plate 884, the top end of the hydraulic push rod 883 is of an inclined surface structure, the inclined surface structure of the hydraulic push rod 883 is attached to one side of the inner wall of the through groove of the hollow limit plate 884, the hollow limit plate 884 is used for limiting the movement of the impact block 870, when the hydraulic push rod 883 moves upwards, the inclined surface area of the hydraulic push rod 883 extrudes the hollow limit plate 884 for releasing the limiting function of the impact block 870 so that the impact block 870 is punched out rapidly, the five-channel hollow housing 820 is fixed with a reel 850 connected through a torsion spring rotating shaft near the center area, the five-channel hollow housing 820 is slidably connected with a trigger block 860 near the center area, and the trigger block 860 is connected with a rope wound in the reel 850, when the trigger block 860 slides under the action of centrifugal force, it also moves according to the centrifugal force, when it triggers the liquid storage capsule 882 in the first trigger assembly 880, it needs to overcome the force of the torsion spring rotating shaft of the reel 850, when it triggers the liquid storage capsule 882 in the second trigger assembly 880, it needs to overcome the force when the torsion spring rotating shaft of the reel 850 rotates further again, so the rotating distance is adapted to the centrifugal force.
When the equipment specifically works, firstly, the protective cover 400 of the machine tool is slidably arranged on the base 100 through the sliding rail on the base 100, one end of the protective cover 400 is attached to the second baffle 300, then the first baffle 200 is rotated to be in a horizontal state, two sides of the protective cover 400 are closed, and meanwhile, the periphery of the protective cover 400 can form a sealing state due to the existence of the rubber sealing gasket;
After the protective cover 400 is installed, the multistage motor 500 is in a first-stage rotating speed state by starting the multistage motor 500, at this moment, the multistage motor 500 drives the hollow rod body 710 and the movable rod 730 to synchronously rotate through the output shaft of the multistage motor 500, then the movable rod 730 drives the test assembly 800 to rotate, at this moment, under the action of primary centrifugal force, four impact blocks 870 in the five-channel hollow shell 820 are simultaneously expanded and moved to be respectively contacted with the hollow limiting plates 884 in the four trigger assemblies 880, at this moment, each impact block 870 has certain inertia, then the multistage motor 500 is regulated to a second-stage rotating speed state, at this moment, the rotating speed is accelerated, when the trigger block 860 slides under the action of centrifugal force, when the trigger block 860 needs to overcome the force of the first rolling of the torsion spring rotating shaft of the winding wheel 850, the inertia accumulated on the impact block 870 is increased due to the centrifugal force, at this moment, the liquid in the first trigger assembly 880 is extruded and triggered, the liquid in the hollow storage block body 882 is extruded and is extruded into the hydraulic pipeline 881, under the condition that the liquid pressure changes, the push rod 883 is enabled to move upwards, the impact limiting plates 870 are extruded and the impact limiting blocks 870 are extruded and the impact state is rapidly detected, and the impact state of the impact block 400 is formed when the impact limiting blocks is rapidly is extruded and the impact protection cover is broken;
next, the multistage motor 500 is sequentially adjusted to a third-stage rotating speed state and a fourth-stage rotating speed state, and at this time, along with further lifting of centrifugal force, the trigger block 860 sequentially extrudes the second, third and fourth trigger components 880, so that all the four impact blocks 870 in the five-channel hollow shell 820 are punched out to simulate the impact states of the cutter under different fragmentation conditions, and the detection data is more comprehensive;
Meanwhile, when the multi-stage motor 500 changes rotation, the gravity slider 770 presses the multi-stage elastic air pressure telescopic rod 760 in batches, the multi-stage elastic air pressure telescopic rod 760 in batches presses the multi-stage elastic air pressure telescopic rod 760 in batches, and internal air of the multi-stage elastic air pressure telescopic rod 760 can be fed into the hollow rod body 710 in batches to control the extension of the movable rod 730 in batches, so that the effect of controlling the movement of the test assembly 800 in batches is achieved, the impact area of the impact block 870 is changed by changing the position of the test assembly 800, the impact area of the impact block 870 is further improved, and the comprehensiveness of detection data is further improved.
The middle part of the upper surface of the base 100 is fixed with a track 600, two support rods 610 used for supporting are connected in a sliding manner in the track 600, one support rod 610 in the track 600 is rotationally connected with the outer side of a cylindrical hollow shell 810, another support rod 610 in the track 600 is rotationally connected with a spraying assembly 900, the spraying assembly 900 comprises a rotary joint 910, a plurality of spray heads 920 which are irregularly oriented are connected to the rotary joint 910, a second connecting block 930 is fixed to the side surface of the rotary joint 910, a plurality of L-shaped connecting grooves 940 are formed in the second connecting block 930, cutting fluid conveying pipelines are externally connected through the rotary joint 910, then cutting fluid is sprayed, tightness during lathe turning operation can be simulated, the spray heads 920 which are irregularly oriented are arranged, the sprayed areas are more comprehensive, a spraying blind area cannot be generated, a plurality of third connecting blocks 811 which are correspondingly matched with the connecting grooves 940 are fixedly arranged on one side of the cylindrical hollow shell 810, which is close to the second connecting block 930, and the cylindrical hollow shell 810 can be connected with the cylindrical hollow shell 810 through the rotary joint 910 by matching with the connecting grooves 940.
In order to simulate the working condition that the lathe needs to spray cutting fluid during turning operation, before the multistage motor 500 is started, the rotary joint 910 is externally connected with a cutting fluid conveying pipeline, meanwhile, the rotary joint 910 and the cylindrical hollow shell 810 are connected through the third connecting block 811 and the connecting groove 940 on the second connecting block 930, when the multistage motor 500 is started to enter a first-stage rotating speed state, the rotary joint 910 is driven to rotate through the connecting rod assembly 700 and the testing assembly 800, then the sealing performance of the protective cover 400 during turning operation of the lathe can be detected through spraying the cutting fluid, a plurality of irregularly-oriented spray heads 920 are arranged, the spraying area is more comprehensive, a spraying blind area is not generated, after spraying is finished, the multistage motor 500 is closed firstly, the spraying assembly 900 is separated from the testing assembly 800, and subsequent impact detection is performed.
Three groups of air inlets 890 which are arranged in an annular array are formed in the back of the cylindrical hollow shell 810, air deflectors 8100 are fixed to each air inlet 890, when the cylindrical hollow shell 810 rotates, external air is led into the cylindrical hollow shell 810 under the action of the air deflectors 8100, and then is ejected from the other end, so that an air film effect is formed, and sundries are prevented from entering the cylindrical hollow shell 810.
The application tests the protective cover 400 by arranging the connecting rod assembly 700 with automatically adjustable length and the testing assembly 800 with irregularly cast impact blocks 870, thereby not only realizing batch impact tests with multiple angles and multiple areas, but also ensuring that the impact areas are uncontrollable and the randomness is stronger, so that the test result is more realistic.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The machine tool protective cover shock resistance testing device comprises a base (100), wherein the upper surface of the base (100) is provided with a rotatable first baffle (200) and a second baffle (300) welded on the base (100), the side surface of the base (100) is provided with a multi-stage motor (500) with adjustable rotating speed through bolts,
The device is characterized in that a connecting rod assembly (700) is assembled on an output shaft of the multistage motor (500), and a testing assembly (800) is assembled on the right side of the connecting rod assembly (700);
The test assembly (800) comprises a cylindrical hollow shell (810) assembled on the connecting rod assembly (700), five through openings are formed in the middle inner end of the cylindrical hollow shell (810), a five-channel hollow shell (820) matched with the five through openings is fixed in the cylindrical hollow shell (810), a third baffle (830) which is connected and detachable through bolts is assembled at the front end of the five-channel hollow shell (820), a first connecting block (840) with threaded holes is fixed in one channel of the five-channel hollow shell (820), impact blocks (870) are movably connected in the other four channels of the five-channel hollow shell (820), a triggering assembly (880) is assembled in the area, close to the four impact blocks (870), of the outer side of the five-channel hollow shell (820), the triggering assembly (880) comprises a hydraulic pipeline (881) fixed on the outer side of the five-channel hollow shell (820), a hollow limit plate (884) which penetrates and is connected in the five-channel hollow shell (820) through a spring piece in a sliding mode, a hydraulic limit plate (884) is fixed in the liquid storage bag of the five-channel hollow shell (820), the hydraulic pipeline (881) is connected with the other end of the hydraulic limit plate (883) in the middle of the hollow shell (883), the hydraulic limit plate (883) is connected with the hydraulic limit plate (883), the utility model discloses a wire rope winding device, including five passageway hollow casing (820), including reel (850), hollow limiting plate (884), hydraulic push rod (883), reel (850) that is connected through the torsional spring pivot is fixed with near the central region in five passageway hollow casing (820), five passageway hollow casing (820) are close to central region sliding connection have trigger piece (860), and trigger piece (860) are connected with the wire rope of winding in reel (850), the inside of hollow limiting plate (884) has been seted up the rectangle and has been run through the groove, and the top of hydraulic push rod (883) is inclined plane structure, the inclined plane structure laminating hollow limiting plate (884) of hydraulic push rod (883) runs through inner wall one side of groove.
2. The machine tool protective cover impact resistance testing device according to claim 1, wherein a track (600) is fixed in the middle of the upper surface of the base (100), and two support rods (610) for supporting are slidably connected inside the track (600).
3. The machine tool protective cover impact resistance testing device according to claim 1, wherein three groups of air inlets (890) are formed in the back of the cylindrical hollow shell (810) in a ring-shaped array, and an air deflector (8100) is fixed on each air inlet (890).
4. The machine tool protection cover shock resistance testing device according to claim 1, wherein the connecting rod assembly (700) comprises a hollow rod body (710) assembled on an output shaft of the multi-stage motor (500), a movable rod (730) is slidingly connected inside the hollow rod body (710), a bearing (720) rotationally connected inside the second baffle (300) is assembled outside the hollow rod body (710), a plurality of hollow blocks (740) are fixedly arranged outside the hollow rod body (710), a gravity slider (770) is slidingly connected inside each hollow block (740), a pipeline (750) communicated with the inside of the hollow rod body (710) is embedded outside each hollow block (740), and a multi-stage elastic pneumatic telescopic rod (760) is assembled between each pipeline (750) and the gravity slider (770).
5. The machine tool protection cover shock resistance testing device according to claim 2, wherein one supporting rod (610) in the track (600) is rotationally connected with the outer side of the cylindrical hollow shell (810), a spraying assembly (900) is rotationally connected on the other supporting rod (610) in the track (600), the spraying assembly (900) comprises a rotary joint (910), a plurality of irregularly-oriented spray heads (920) are connected on the rotary joint (910), a second connecting block (930) is fixed on the side face of the rotary joint (910), and a plurality of L-shaped connecting grooves (940) are formed in the second connecting block (930).
6. The impact resistance testing device for the machine tool protective cover according to claim 5, wherein a plurality of third connecting blocks (811) matched with the connecting grooves (940) are fixed on one side of the cylindrical hollow shell (810) close to the second connecting block (930).
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| CN108663184A (en) * | 2018-04-27 | 2018-10-16 | 宁夏共享机床辅机有限公司 | A kind of machine shield impact test equipment |
| CN112128357A (en) * | 2020-10-09 | 2020-12-25 | 建德席次机械设备有限公司 | Speed reducer device triggered by plectrum rollers |
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| SU711409A1 (en) * | 1978-08-14 | 1980-01-25 | Новосибирский электротехнический институт | Impact testing machine |
| JP3302601B2 (en) * | 1997-03-10 | 2002-07-15 | 株式会社アコタ | Horizontal mill |
| US7018326B2 (en) * | 2000-08-31 | 2006-03-28 | Varco I/P, Inc. | Centrifuge with impellers and beach feed |
| RU2636798C1 (en) * | 2016-10-10 | 2017-11-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" | Shock testing machine |
| CN215767590U (en) * | 2021-10-11 | 2022-02-08 | 河南工业职业技术学院 | A Rotary Turntable Mechanism of Feeding System for Impact Test |
| CN115248113A (en) * | 2022-09-14 | 2022-10-28 | 江苏通强智能装备有限公司 | Switch board shell resistance to compression detection device |
| CN116164924B (en) * | 2023-04-24 | 2023-07-28 | 山东海鲲数控设备有限公司 | Shock resistance testing device for machine tool protective cover |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663184A (en) * | 2018-04-27 | 2018-10-16 | 宁夏共享机床辅机有限公司 | A kind of machine shield impact test equipment |
| CN112128357A (en) * | 2020-10-09 | 2020-12-25 | 建德席次机械设备有限公司 | Speed reducer device triggered by plectrum rollers |
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