CN113551996A - Low-pressure cast aluminum alloy auxiliary frame strength detection device and application method thereof - Google Patents
Low-pressure cast aluminum alloy auxiliary frame strength detection device and application method thereof Download PDFInfo
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- CN113551996A CN113551996A CN202110808040.9A CN202110808040A CN113551996A CN 113551996 A CN113551996 A CN 113551996A CN 202110808040 A CN202110808040 A CN 202110808040A CN 113551996 A CN113551996 A CN 113551996A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
Abstract
The invention discloses a device for detecting the strength of an aluminum alloy auxiliary frame cast at low pressure and a using method thereof, relating to the technical field of auxiliary frame strength detection; in order to solve the dynamic load detection problem; the device comprises a base, the top outer wall of base is provided with static load detection mechanism, static load detection mechanism is including being used for the fixed subassembly to sub vehicle frame centre gripping and being used for the static load detection subassembly to static load intensity detection, and the method includes putting sub vehicle frame on two clamping jaws of bottom, starts hydraulic cylinder one, and after pressing from both sides the post and forming the binding face, screw up locking bolt two and lock, continues to start hydraulic cylinder one afterwards and apply certain clamping-force. When the motor III is started, the motor III can drive the rotary table to rotate, so that the rotary table, the connecting rod and the detection head II form a crank-slider mechanism, the detection head II can reciprocate up and down, the dynamic load condition of the auxiliary frame in the use process is simulated, and the auxiliary frame is detected.
Description
Technical Field
The invention relates to the technical field of auxiliary frame strength detection, in particular to a low-pressure cast aluminum alloy auxiliary frame strength detection device and a use method thereof.
Background
The auxiliary frame is not a complete frame, but only supports the front and rear axles and the suspension bracket, so that the axles and the suspension bracket are connected with the 'front frame', and before the auxiliary frame is used, the auxiliary frame needs to be subjected to strength detection to prevent the auxiliary frame from being damaged and deformed in the use process.
Through retrieval, chinese patent publication No. CN213301877U discloses a detection apparatus for frame structural strength, which comprises a control unit, a chassis, a tailstock, a front swing device and a rear swing device, wherein the control unit is located on one side of the chassis, the upper end of the chassis is respectively provided with the tailstock, the front swing device and the rear swing device, the front portion of the frame is fixedly connected to one side of the front swing device, the lower end of the rear portion of the frame is fixedly connected to one side of the tailstock, the upper end of the rear portion of the frame is fixedly connected to the lower end of the rear swing device, the front swing device and the tailstock are arranged in parallel, the rear swing device is located above the tailstock, and the front swing device and the rear swing device are both in signal connection with the control unit.
The above patents suffer from the following disadvantages: because the auxiliary frame is connected with the suspension, in actual use, the auxiliary frame is not completely subjected to static load, and when wheels travel, the auxiliary frame can be subjected to dynamic load under the damping action.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a device for detecting the strength of an aluminum alloy subframe cast at low pressure and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a strength detection device for an aluminum alloy auxiliary frame cast at low pressure comprises a base, wherein a static load detection mechanism is arranged on the outer wall of the top of the base, the static load detection mechanism comprises a fixing component used for clamping the auxiliary frame and a static load detection component used for detecting the static load strength, the outer wall of the top part of the base is also provided with a dynamic load detection mechanism for detecting the dynamic load strength of the auxiliary frame, the dynamic load detection mechanism comprises a sliding seat and a motor III, the motor III is fixed on the outer wall of the top of the sliding seat through a bolt, an output shaft of the motor III is fixedly provided with a rotary table through a bolt, the outer wall of the rotary table is movably connected with a connecting rod, the other end of the connecting rod is rotatably connected with a slide rod III, the outer wall of the top of the slide rod III is connected with a detection head II in a sliding mode, the outer wall of the slide rod III is sleeved with a spring I, and the detection head II is connected with the slide seat in a sliding mode through a guide pillar.
Preferably: the outer wall of the rotary table is fixed with two symmetrical supporting blocks through bolts, the outer wall of one side, opposite to the two supporting blocks, of the two supporting blocks is fixed with a fifth sliding rod through bolts, the outer wall of the fifth sliding rod is connected with a second sliding block in a sliding mode, and the connecting rod is rotatably connected with the second sliding block.
Further: the inner wall of the second sliding block is connected with a first locking bolt through threads.
On the basis of the scheme: the fixed subassembly includes the portal frame of being fixed in base top outer wall through the bolt and two support steels through the bolt fastening in base top outer wall, the portal frame has the rectangular frame through two sliding connection of slide bar, there are four clamping jaws bottom of rectangular frame and two support steel's top through the bolt fastening, the top outer wall of portal frame has pneumatic cylinder one through the bolt fastening, and the output of pneumatic cylinder one passes through the bolt fastening with the rectangular frame.
The better scheme in the scheme is as follows: the static load detection assembly comprises a second hydraulic cylinder and a first sliding block, the first sliding block is connected with the rectangular frame in a sliding mode through the first sliding rod, the second hydraulic cylinder is fixed to the outer wall of the top of the first sliding block through a bolt, and a first detection head is fixed to the output end of the second hydraulic cylinder through a bolt.
As a further scheme of the invention: the inner wall of the rectangular frame is rotatably connected with a first lead screw, the first lead screw is in threaded connection with a first sliding block, a first motor is fixed on the inner side wall of the rectangular frame through a bolt, and an output shaft of the first motor is matched with the first lead screw in a synchronous belt transmission mode.
And simultaneously, two the outer wall of one side opposite to the support steel is fixedly provided with a slide rod four and is rotatably connected with a screw rod two, the slide rod four is connected with the slide seat in a sliding manner, the screw rod two is connected with the slide seat through threads, one of the outer wall of the support steel is fixedly provided with a motor two through a bolt, and an output shaft of the motor two is connected with the screw rod two through a coupler.
As a preferable aspect of the present invention: the clamping jaw comprises a main body and a clamping column which is evenly connected to the inner wall of the main body in a sliding mode, and a second spring is welded to one side, located in the main body, of the clamping column.
Meanwhile, the inner wall of the main body is connected with a locking disc in a sliding mode in a direction perpendicular to the clamping column, a friction limiting hole matched with the clamping column is formed in the inner wall of the locking disc, and the outer wall of the other side of the locking disc is connected with a locking bolt II through threads.
A use method of a low-pressure cast aluminum alloy auxiliary frame strength detection device comprises the following specific steps:
s1: placing the auxiliary frame on the two clamping jaws at the bottom, starting the first hydraulic cylinder, screwing the second locking bolt for locking after the clamping columns form the binding surfaces, and then continuing to start the first hydraulic cylinder to apply a certain clamping force;
s2: after the auxiliary frame is clamped completely, starting a second hydraulic cylinder, driving a first detection head to eject out, and detecting the static load strength of the auxiliary frame;
s21: when the static load point needs to be adjusted, the first sliding block can be driven to slide by starting the first motor;
s3: after the static load detection is finished, starting a motor III which can drive the rotary table to rotate, so that the rotary table, the connecting rod and the detection head form a crank-slider mechanism to detect the dynamic load of the auxiliary frame;
s31: when the dynamic load point needs to be adjusted, the second motor is started, and can drive the second screw rod to rotate, so that the sliding seat is driven to slide along the direction of the frame through the action of the threads;
s4: after the detection is finished, the frame is taken down to finish the detection process.
The invention has the beneficial effects that:
1. this aluminum alloy sub vehicle frame intensity detection device of low pressure casting, when motor three starts, it can drive the carousel and rotate to make carousel, connecting rod and detection head two formation crank-slider mechanism, make detection head two up-and-down reciprocating motion, the dynamic load condition in the simulation sub vehicle frame use, thereby detect it.
2. This cast aluminum alloy sub vehicle frame intensity detection device of low pressure, through the setting of spring one, because sub vehicle frame with hang and be connected, the damper who hangs is flexible and linear gradual change to the effort of sub vehicle frame, through the setting of spring one, can make dynamic load detection mechanism to the dynamic load when carrying out the simulation detection, more laminating operating condition to the accuracy of result has been improved.
3. This low pressure cast aluminum alloy sub vehicle frame intensity detection device, through being connected main part and slider two, and slider two can be along the radial displacement of motor three through slide bar five again, when slider two remove, it changes the radial position of connecting rod bottom rotation tie point relative motor three to change its motion stroke, thereby make the device can be according to the in-service use operating mode of sub vehicle frame, carry out the intensity of pertinence regulation dynamic load.
4. This cast aluminum alloy sub vehicle frame intensity detection device of low pressure, through utilizing slide bar one and rectangle frame sliding connection with slider one, and the inner wall threaded connection of pneumatic cylinder two has lead screw one, and when motor one started, it can drive lead screw one through the hold-in range and rotate to make slider one carry out the displacement along the frame, thereby make the check point can adjust.
5. This cast aluminum alloy sub vehicle frame intensity detection device of low pressure, through carrying out structural design to the clamping jaw, when two sets of clamping jaws of subtend carry out the centre gripping, the shrinkage of pressing from both sides the post slidable, the automatic clamping face that forms laminating frame terminal surface of multiple spot centre gripping, afterwards through screwing up locking bolt two, can fix the clamping face shape of pressing from both sides the post through the frictional force between locking dish and the clamp post, can effectually prevent to utilize the plane centre gripping to lead to the unstable or condition of the ladder face of damage frame of centre gripping, the stability of centre gripping has been improved.
Drawings
FIG. 1 is a schematic overall structure diagram of a device for detecting strength of an aluminum alloy subframe for low-pressure casting according to the present invention;
FIG. 2 is a schematic structural view of a static load detection mechanism of the device for detecting the strength of the aluminum alloy subframe cast at low pressure provided by the invention;
FIG. 3 is a schematic structural view of a dynamic load detection mechanism of the device for detecting the strength of the aluminum alloy subframe cast at low pressure provided by the invention;
FIG. 4 is a schematic view of a structure of a turntable and a connecting rod matching structure of the device for detecting the strength of the low-pressure cast aluminum alloy auxiliary frame provided by the invention;
FIG. 5 is a schematic view of a clamping jaw structure of the device for detecting the strength of the low-pressure cast aluminum alloy auxiliary frame, provided by the invention;
fig. 6 is a schematic cross-sectional structural view of a clamping jaw of the device for detecting the strength of the low-pressure cast aluminum alloy subframe provided by the invention.
In the figure: 1-base, 2-dynamic load detection mechanism, 3-static load detection mechanism, 4-static load detection component, 5-fixed component, 6-slide bar I, 7-supporting steel, 8-portal frame, 9-rectangular frame, 10-slide bar II, 11-lead screw I, 12-hydraulic cylinder I, 13-hydraulic cylinder II, 14-motor I, 15-synchronous belt, 16-clamping jaw, 17-slide block I, 18-detection head I, 19-spring I, 20-detection head II, 21-slide bar III, 22-slide block, 23-connecting rod, 24-lead screw II, 25-motor II, 26-slide bar IV, 27-rotary table, 28-motor III, 29-supporting block, 30-slide bar V, 31-locking bolt I, 31-static load detection component, 32-second sliding block, 33-main body, 34-clamping column, 35-second locking bolt, 36-locking disk and 37-second spring.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1:
a low-pressure cast aluminum alloy auxiliary frame strength detection device is shown in figures 1-3 and comprises a base 1, wherein a static load detection mechanism 3 is arranged on the outer wall of the top of the base 1, the static load detection mechanism 3 comprises a fixing component 5 for clamping an auxiliary frame and a static load detection component 4 for detecting the static load strength, a dynamic load detection mechanism 2 for detecting the dynamic load strength of the auxiliary frame is further arranged on the outer wall of the top of the base 1, the dynamic load detection mechanism 2 comprises a sliding seat 22 and a motor III 28, the motor III 28 is fixed on the outer wall of the top of the sliding seat 22 through bolts, an output shaft of the motor III 28 is fixedly provided with a rotating disk 27 through bolts, the outer wall of the rotating disk 27 is movably connected with a connecting rod 23, the other end of the connecting rod 23 is rotatably connected with a sliding rod III 21, and the outer wall of the top of the sliding rod III 21 is slidably connected with a detection head II 20, the outer wall of the third sliding rod 21 is sleeved with a first spring 19, and the second detection head 20 is in sliding connection with a sliding seat 22 through a guide pillar; when the third motor 28 is started, the third motor can drive the rotary disc 27 to rotate, so that the rotary disc 27, the connecting rod 23 and the second detection head 20 form a crank-slider mechanism, the second detection head 20 can reciprocate up and down, the dynamic load condition of the auxiliary frame in the using process can be simulated, and the auxiliary frame can be detected.
In order to solve the problem of dynamic load adjustment; as shown in FIG. 4, two symmetrical supporting blocks 29 are fixed on the outer wall of the rotary table 27 through bolts, a slide bar five 30 is fixed on the outer wall of the opposite side of the two supporting blocks 29 through bolts, a slide block two 32 is connected to the outer wall of the slide bar five 30 in a sliding mode, and the connecting rod 23 is connected with the slide block two 32 in a rotating mode.
In order to solve the locking problem; as shown in fig. 4, the inner wall of the second sliding block 32 is connected with a first locking bolt 31 through threads, and after the position of the second sliding block 32 is adjusted, the first locking bolt 31 is screwed down for fixing.
In order to solve the clamping problem; as shown in fig. 2, the fixing assembly 5 includes a portal frame 8 fixed on the outer wall of the top of the base 1 through bolts and two supporting steels 7 fixed on the outer wall of the top of the base 1 through bolts, the portal frame 8 is slidably connected with a rectangular frame 9 through a sliding rod two 10, four clamping jaws 16 are fixed on the bottom of the rectangular frame 9 and the tops of the two supporting steels 7 through bolts, a first hydraulic cylinder 12 is fixed on the outer wall of the top of the portal frame 8 through bolts, and the output end of the first hydraulic cylinder 12 is fixed on the rectangular frame 9 through bolts.
In order to solve the problem of static load detection; as shown in fig. 2, the static load detection assembly 4 includes a second hydraulic cylinder 13 and a first sliding block 17, the first sliding block 17 is slidably connected with the rectangular frame 9 through a first sliding rod 6, the second hydraulic cylinder 13 is fixed on the outer wall of the top of the first sliding block 17 through a bolt, a first detection head 18 is fixed on the output end of the second hydraulic cylinder 13 through a bolt, and after the subframe is clamped completely, the second hydraulic cylinder 13 is started, and can eject the first detection head 18 out, so that the second hydraulic cylinder exerts an acting force on the subframe, and the bending static load strength of the subframe is detected.
In order to solve the problem of static load detection position adjustment, as shown in fig. 2, the inner wall of the rectangular frame 9 is rotatably connected with a first lead screw 11, the first lead screw 11 is in threaded connection with a first slide block 17, a first motor 14 is fixed on the inner side wall of the rectangular frame 9 through bolts, an output shaft of the first motor 14 is in transmission fit with the first lead screw 11 through a synchronous belt 15, the first slide block 17 is in sliding connection with the rectangular frame 9 through a first slide rod 6, the inner wall of a second hydraulic cylinder 13 is in threaded connection with the first lead screw 11, when the first motor 14 is started, the first motor can drive the first lead screw 11 to rotate through the synchronous belt 15, and therefore the first slide block 17 is enabled to move along the frame, and therefore a detection point can be adjusted.
In order to solve the problem of adjusting the position of the dynamic load detection, as shown in fig. 3, two outer walls of opposite sides of the support steel 7 are respectively and fixedly provided with a slide bar four 26 and a screw rod two 24, the slide bar four 26 is in sliding connection with the slide seat 22, the screw rod two 24 is in threaded connection with the slide seat 22, one of the outer walls of the support steel 7 is fixedly provided with a motor two 25 through a bolt, an output shaft of the motor two 25 is in coupling connection with the screw rod two 24, when the motor two 25 is started, the motor can drive the screw rod two 24 to rotate, so that the slide seat 22 is driven to slide along the direction of the frame through the action of threads, a detection point can be changed and adjusted, and the practicability of the device is improved.
In the embodiment, when the auxiliary frame is used, the auxiliary frame is placed on the two clamping jaws 16 at the bottom, the first hydraulic cylinder 12 is started and drives the rectangular frame 9 to descend, so that the two clamping jaws 16 at the top descend to clamp the auxiliary frame, after the auxiliary frame is clamped completely, the second hydraulic cylinder 13 is started and can push out the first detection head 18 to apply an acting force on the auxiliary frame and detect the bending static load strength of the auxiliary frame, the first sliding block 17 is connected with the rectangular frame 9 in a sliding mode through the first sliding rod 6, the first lead screw 11 is connected to the inner wall of the second hydraulic cylinder 13 in a threaded mode, when the first motor 14 is started, the first lead screw 11 can be driven to rotate through the synchronous belt 15, so that the first sliding block 17 displaces along the frame, so that the detection point can be adjusted, after the static load detection is completed, the third motor 28 is started and can drive the rotary disc 27 to rotate, so that the rotary disc 27, the connecting rod 23 and the second detection head 20 form a crank-slide block mechanism, the second detection head 20 can reciprocate up and down to simulate the dynamic load condition of the auxiliary frame in the use process, so that the auxiliary frame can be detected, and in addition, when the second motor 25 is started, the second motor can drive the second lead screw 24 to rotate, so that the sliding seat 22 is driven to slide along the direction of the frame through the action of threads, and the detection point can be changed and adjusted.
Example 2:
a device for detecting the strength of an aluminum alloy auxiliary frame cast at low pressure is shown in figures 5 and 6, and aims to solve the problem that clamping can be more attached to the end face of a frame; the present embodiment is modified from embodiment 1 as follows: the clamping jaw 16 comprises a main body 33 and a clamping column 34 which is evenly connected to the inner wall of the main body 33 in a sliding mode, and a second spring 37 is welded to one side, located in the main body 33, of the clamping column 34.
In order to solve the problem of shape fixation, as shown in fig. 6, a locking disc 36 is slidably connected to the inner wall of the main body 33 in a direction perpendicular to the clamping column 34, a friction limiting hole matched with the clamping column 34 is formed in the inner wall of the locking disc 36, and a second locking bolt 35 is connected to the outer wall of the other side of the locking disc 36 through threads.
In the embodiment, when the device is used, because the end face of the auxiliary frame is not a complete plane, when the auxiliary frame is clamped, the clamping is possibly unstable or the step face of the frame is damaged by using plane clamping, the clamping jaws 16 are structurally designed, when two groups of opposite clamping jaws 16 are clamped, the clamping columns 34 can slidably contract, multi-point clamping automatically forms clamping faces attached to the end face of the frame, then the clamping faces of the clamping columns 34 can be fixed by tightening the locking bolts 35 through the friction force between the locking discs 36 and the clamping columns 34, the situation that the clamping is unstable or the step face of the frame is damaged by using plane clamping can be effectively prevented, and the clamping stability is improved.
Example 3:
a use method of the low-pressure cast aluminum alloy auxiliary frame strength detection device is shown in figures 1-6, and comprises the following specific steps:
s1: placing the auxiliary frame on the two clamping jaws 16 at the bottom, starting the first hydraulic cylinder 12, screwing the second locking bolt 35 for locking after the clamping column 34 forms a binding surface, and then continuously starting the first hydraulic cylinder 12 to apply a certain clamping force;
s2: after the auxiliary frame is clamped completely, starting a second hydraulic cylinder 13, driving a first detection head 18 to eject, and performing static load strength detection on the auxiliary frame;
s21: when the static load point needs to be adjusted, the first motor 14 is started to drive the first sliding block 17 to slide;
s3: after the static load detection is finished, starting a third motor 28 which can drive the rotary table 27 to rotate, so that the rotary table 27, the connecting rod 23 and the second detection head 20 form a crank-slider mechanism to detect the dynamic load of the auxiliary frame;
s31: when the dynamic load point needs to be adjusted, the second motor 25 is started, and can drive the second lead screw 24 to rotate, so that the sliding seat 22 is driven to slide along the direction of the frame through the screw action;
s4: after the detection is finished, the frame is taken down to finish the detection process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a low pressure casting's aluminum alloy sub vehicle frame intensity detection device, includes base (1), its characterized in that, the top outer wall of base (1) is provided with static load detection mechanism (3), static load detection mechanism (3) are including being used for the fixed subassembly (5) of sub vehicle frame centre gripping and being used for static load detection subassembly (4) to static load intensity detection, the top outer wall of base (1) still is provided with dynamic load detection mechanism (2) that are used for the sub vehicle frame dynamic load intensity detection, dynamic load detection mechanism (2) include slide (22) and motor three (28), motor three (28) are fixed in on the top outer wall of slide (22) through the bolt, the output shaft of motor three (28) has carousel (27) through the bolt fastening, and the outer wall swing joint of carousel (27) has connecting rod (23), and the other end rotation of connecting rod (23) is connected with slide bar three (21), the outer wall of the top of the sliding rod III (21) is connected with a detection head II (20) in a sliding mode, the outer wall of the sliding rod III (21) is sleeved with a spring I (19), and the detection head II (20) is connected with the sliding seat (22) in a sliding mode through a guide pillar.
2. The device for detecting the strength of the low-pressure cast aluminum alloy auxiliary frame according to claim 1, wherein two symmetrical support blocks (29) are fixed on the outer wall of the rotary table (27) through bolts, a slide rod five (30) is fixed on the outer wall of one side of the two support blocks (29) through bolts, a slide block two (32) is connected on the outer wall of the slide rod five (30) in a sliding mode, and the connecting rod (23) is rotatably connected with the slide block two (32).
3. The device for detecting the strength of the low-pressure cast aluminum alloy auxiliary frame is characterized in that a first locking bolt (31) is connected to the inner wall of the second sliding block (32) through threads.
4. The low-pressure cast aluminum alloy auxiliary frame strength detection device as claimed in claim 1, wherein the fixing assembly (5) comprises a portal frame (8) fixed on the outer wall of the top of the base (1) through bolts and two supporting steels (7) fixed on the outer wall of the top of the base (1) through bolts, the portal frame (8) is connected with a rectangular frame (9) through a sliding rod II (10) in a sliding mode, four clamping jaws (16) are fixed on the bottom of the rectangular frame (9) and the tops of the two supporting steels (7) through bolts, a first hydraulic cylinder (12) is fixed on the outer wall of the top of the portal frame (8) through bolts, and the output end of the first hydraulic cylinder (12) is fixed with the rectangular frame (9) through bolts.
5. The low-pressure cast aluminum alloy auxiliary frame strength detection device is characterized in that the static load detection assembly (4) comprises a second hydraulic cylinder (13) and a first sliding block (17), the first sliding block (17) is connected with the rectangular frame (9) in a sliding mode through a first sliding rod (6), the second hydraulic cylinder (13) is fixed to the outer wall of the top of the first sliding block (17) through bolts, and a first detection head (18) is fixed to the output end of the second hydraulic cylinder (13) through bolts.
6. The device for detecting the strength of the auxiliary frame of the low-pressure cast aluminum alloy frame is characterized in that a first lead screw (11) is rotatably connected to the inner wall of the rectangular frame (9), the first lead screw (11) is in threaded connection with a first sliding block (17), a first motor (14) is fixed to the inner side wall of the rectangular frame (9) through a bolt, and an output shaft of the first motor (14) is in transmission fit with the first lead screw (11) through a synchronous belt (15).
7. The device for detecting the strength of the low-pressure cast aluminum alloy auxiliary frame according to claim 6, wherein a sliding rod four (26) and a screw rod two (24) are fixedly mounted on the outer wall of one opposite side of each of the two support steels (7), the sliding rod four (26) is connected with the sliding base (22) in a sliding mode, the screw rod two (24) is connected with the sliding base (22) in a threaded mode, a motor two (25) is fixed on the outer wall of one support steel (7) through a bolt, and an output shaft of the motor two (25) is connected with the screw rod two (24) through a coupling.
8. The device for detecting the strength of the low-pressure cast aluminum alloy subframe as claimed in claim 4, wherein the clamping jaw (16) comprises a main body (33) and clamping columns (34) which are uniformly connected to the inner wall of the main body (33) in a sliding mode, and springs (37) are welded to one sides, located in the main body (33), of the clamping columns (34).
9. The device for detecting the strength of the low-pressure cast aluminum alloy auxiliary frame according to claim 8, wherein a locking disc (36) is connected to the inner wall of the main body (33) in a sliding manner in a direction perpendicular to the clamping column (34), a friction limiting hole matched with the clamping column (34) is formed in the inner wall of the locking disc (36), and a second locking bolt (35) is connected to the outer wall of the other side of the locking disc (36) through threads.
10. The use method of the low-pressure cast aluminum alloy auxiliary frame strength detection device is characterized by comprising the following specific steps:
s1: placing the auxiliary frame on two clamping jaws (16) at the bottom, starting a first hydraulic cylinder (12), screwing a second locking bolt (35) for locking after a binding surface is formed on a clamping column (34), and then continuously starting the first hydraulic cylinder (12) to apply a certain clamping force;
s2: after the auxiliary frame is clamped, starting a second hydraulic cylinder (13) to drive a first detection head (18) to eject out, and performing static load strength detection on the auxiliary frame;
s21: when the static load point needs to be adjusted, the first sliding block (17) can be driven to slide by starting the first motor (14);
s3: after the static load detection is finished, starting a motor III (28) which can drive the rotary table (27) to rotate, so that the rotary table (27), the connecting rod (23) and the detection head II (20) form a crank-slider mechanism to detect the dynamic load of the auxiliary frame;
s31: when the dynamic load point needs to be adjusted, a second motor (25) is started, and can drive a second screw rod (24) to rotate, so that the sliding seat (22) is driven to slide along the direction of the frame through the action of threads;
s4: after the detection is finished, the frame is taken down to finish the detection process.
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| CN114755034A (en) * | 2022-06-15 | 2022-07-15 | 山东亚华机械制造有限公司 | Vehicle axle strength detection device |
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| CN113551996B (en) | 2022-04-15 |
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